电力电子技术在智能电网中的应用英文
先进电力电子技术在智能电网中的应用_徐天宇
电力电子• Power Electronics242 •电子技术与软件工程 Electronic Technology & Software Engineering【关键词】先进电力电子技术 智能电网 应用经济的快速发展带动各行各业都呈现一个全新的发展状态，对能源和电力的需求也就相应增多，尤其是对电力方面，增大的用电需求量也对电力系统提出了更严格的要求，因为稳定的电力传输才能保障我国经济平稳发展。
因此，先进的电力电子技术在电力企业中备受瞩目，逐渐实现了电网的智能化。
1 我国智能电网的发展现状智能电网，就是智能化的电网，这是一种新型电网，集多种先进的技术于一体，能大大的提高效率，节省能源，减少电能损耗，保证用电安全等。
随着经济的发展，智能电网应用越来越广泛，美国的智能电网最为成熟，但仍不能满足国内所需；随后日本和欧盟也将先进的光纤技术应用到电网中；我国的智能电网虽然兴起不久，但在智能电网领域，却取得了相当大的成就，研究了一大批先进的科研成果，为电力事业的发展起了很大的推动作用。
2 先进电力电子技术对智能电网建设的作用2.1 满足电能输出供应需求经济的快速发展带动各行各业，对能源和电力的需求也就相应增多。
如果，电力供应系统不能满足社会需要，不仅不会对社会起到促进作用，还会阻碍社会的发展。
因此，通过在智能电网中使用先进的电力电子技术，能够提高电能的输出质量，改善电网的输出效率，满足社会需求量。
2.2 维护电网稳定虽然，先进的科学技术带动了电子技术先进电力电子技术在智能电网中的应用文/徐天宇的发展，但是，在电力系统中，电子技术并没有得到很好地推广。
将先进的电力电子技术运用到电网中，能够根据用户需求及时进行调整，保证整个电网用电稳定和安全，实现电网的稳定化。
2.3 优化资源配置作为能源的组成部分，电力资源对于社会发展意义重大。
虽然我国能源资源的总量非常可观，但是人均资源却是寥寥无几，而且有些能源资源濒临枯竭，对社会和环境都造成重大影响。
浅谈先进电力电子技术在智能电网中的应用
使 电网 故障 扩散 得 到有 效控 制 ，为 智 能 电网运 行 的安全 性 与稳 定性
的提 升提 供 强有 力 的保 障。 ２ ． 保 障 电能质 量 当 下社会 各 领域 对 电力 资源 的需求 量不 断增 长 ，在 此背 景 下 ， 电 能质 量 的提 升 具 有 十 分 重 要 的 意义 。如 果 电能 输 出 与 实 际 需求 不相 适 应 ，就会 对 整个 电网运转 造 成严 重影 响 ，进 而给 社会 经济 带 来 负面 效应 。鉴 于 此 ，加强 先进 电力 电子技 术 与设 备 的运用 非 常关 键 ，只 有如 此才 能够 使 电网 电能质 量得 到 改善 ，在 输 电效率 得 到保 障 的同 时，为 社会 经济 的发展 提供 强大 的支 持 。 ３ ． 资 源配 置优 化 在社 会经 济 发展 过 程 中， 能源 一 直都发 挥着 重 要 的作用 。然而 在 常规化 石能源 不断 消耗 的背 景下 ，地 球生 态平衡 与环境污 染 问题越 来 越突 出，对 于人类 的生存 与发展构成 了严重 的威胁 。鉴于此 ，近年 来 人们开 始倡 导清洁无 污染能源 的应用 与发展 ，例如风 能 、太 阳能 、 潮 汐能 等等 。不可台 认，我 国能源储 量非常 丰富 ，然而受 限于资源 分 布 与人 口因素 ，我 国能源人均 占有量 依然处 于较低 的水平 。此外 ，我 国能源在 开发利 用过程 中面 临着诸多 困难 ，能源使用 问题难 以得到 快 速 解决 ，特别 是我 国社会 经济 正处于 高速发展 阶段 ，能源消耗 十分 巨 大 ，经济 发展 与环 境污 染矛盾 冲突十 分突 出。因此 ，在 我 国经 济发展 进 程 中，可持续 发展 战略的实 行势在 必行 ，而 电能作为 可再生 清洁 能 源 ，其运 用与发展 对于推 动社会 经济而 言无疑有 着积极 影响 。基于先 进 电力 电子技术 的运用 智能 电网建设 与运行 的安全性 、可靠 性能得 到有效提 升 ，对 于 电能 资源 的 大规 模远 距 离 运输 有 着十 分积 极 的 影 响 ，同时 基 于 电力 电子技 术 ，能 源 资源 的配 置也 得 到优化 ，对于 全
智能电网中的先进电力电子技术应用
Power Electronics •电力电子Electronic Technology & Software Engineering 电子技术与软件工程• 229【关键词】先进 电力电子技术 智能技术 初步探究虽然随着目前社会经济的不断发展与进步，我国的科技信息水平已经进入了一个崭新的阶段，同时也为我国各大领域的发展提供了便利，但也由于这种发展模式的出现，使得我国又对电网方面的发展提出了崭新的要求，所以为了能够满足这些新的要求，我国针对电力电网的发展现状以及未来的发展规划做了相关的阐述，并且不断的完善目前电网所具有的功能，让其进一步的向着智能化方向发展。
1 智能电网对先进电力电子技术的需求1.1 电力电子技术是智能电网的助推器目前随着科技的不断发展与进步，传统的电力电子技术已经逐渐向智能化的方向迈进，而且电力电子技术的应用也是使智能电网统一的基础条件，同时电力电子技术的智能化发展也是未来不可逃避的发展方向，根据我国国情发展的实际情况来看，各种有关于智能化电力电子技术的系统控制器，都会迎来非常好的应用前景。
1.2 可以促进可再生资源的有效利用大部分可再生资源的应用都存在着不确定性，而且这种不确定性尤其存在于一些规模比较大的资源分布区域内，因此稳定性是电力电网发展的主要目标，通过在智能电网中应用电力电子技术可以很好的优化电力运输，可以使电力传播的距离更远，速度更快，稳定性更高。
有效的对可再生资源进行调控可以很好的促进用电的清洁性，防止对环境造成污染，因此对地球的发展造成影响。
1.3 可以改善电网中电能质量和满足电力市场的需求采用目前发展过程中比较先进的技术可智能电网中的先进电力电子技术应用文/贾起越以很好的提高用电的质量，因而就可以很好的助力各项用电工作的稳定发展。
因为当今在用电过程中出现的问题与电力电子技术的发展脱离不了关系，所以这就决定了电能质量方面的问题要和电力电子技术共同发展，必须要将电力电子技术逐渐推进智能化发展，让它在智能化发展的大背景下电力行业的发展会更好。
智能电网中电力电子技术的应用探讨
［ ２ ］ 冯 建力 ． 浅谈 电力 电子技 术在智 能 电网 中的应 用 Ｕ 】 ｌ
科技 风 ， ２ ０ １ ３ （ １ ７ ） ： １ ０ ２ ．
［ ３ ］ 田平 ． 先进 电力 电子技 术在 智能 电网 中的应 用 Ｕ ］ ． 电
子 制作 ， ２ ０ １ ３ （ ２ ２ ） ： １ ８ ２ ．
（ 四 ）高压变频技 术。高压 变频技术最重要 的优 势是具 有 良好 的节能效果 ，但是在智 能电网中应用高压变频技 术也 存在 一定的 问题 ，高压变频 技术的运行成本相对较 高，并且
［ 作者 简介 ］朱鹏 （ １ ９ ８ ５ ． ０ ４ ～ ），男 ，教师 ，本科 ，学 士学位 ，研 究方 向：电力 电子技术 。
来越稳 定 。
在智 能 电网运行过程 中，很 容易产生交流 电的高次谐波 。对 于我 国很多工业用户来说，在智能 电网中应用高压变频技术， 会取 得明显的节能效 果，推 动我国工业生产快速 实现节能减 排 。当前，我 国有很多 高压 变频设备生产厂家 ，主要 采用 多 电平变频技术 ，同时融合一些其他结构类型的高压变频技术， 例 如三 电平技术 、混合 结构技术等 ，这些高 压变 频技术具有 四象 限运行、灵活控制 、紧凑结构 以及密度 工艺等优 点，在 未来的发展过程 中，高压变频技术在智 能电网中将会发挥 更 加 重要的作用 。另外 ，变频 技术也可应用在 发 电环节 ，变频 技 术在发 电厂风机 水泵中的应用 ，能够更好 的实现节能 降耗 问题 。发 电厂用 电平均为 ８ ％ ，其 中以风机水泵运行可 以占据 到总量 的 ６ ５ ％ ，通过 高压或者低 压变频 器，可 以实现 风机 的 变频 调速 ， 能够 节 约 ３ ０ ％左 右 的 电能 。 四 、 结 束 语 电力 电子技术 在智能 电网中的应用 ，极大地提高 了电力 系统 的社会效益和 经济效益 ，通过深入 分析和研究智 能电网 中电力电子技术 的应用 ，继续加 大对智能 电网的投入和建设 ， 推动 我国智能电网的可持续发展 。 参考文献： ［ １ 】 马红歌 ． 电力 电子技 术在 智能 电网 中的应 用 Ⅲ． 数 字
电力电子技术在智能电网中的应用分析
电力系统56丨电力系统装备 2019.11Electric System2019年第11期2019 No.11电力系统装备Electric Power System Equipment电力电子技术是利用电力电子器件对电能的使用进行变换与控制，这种现代化的操控技术可让节能效果达到最高，促进机电设备的体积缩小与工作效率提升。
智能电网中的先进测量、通讯、分析、决策等技术的出现，让电力电子技术能够在智能电网中更为自如地发挥作用。
1 智能电网的发展现状针对智能电网研究概念来说，其在每一个国家的研究结果均存在一定的差异性，并没有统一的概念。
智能电网实质上就是电网的智能化，是由以下几个部分组成的新型电网：一是新型技术；二是通讯技术；三是计算机技术；四是基于原有的输、配电基础设施。
智能电网具备以下几点优势：一是可以有效提升能源效率；二是能够降低对周围环境带来的不利影响；三是可以增强供电的稳定性；四是能够降低输电网损耗等。
21世纪后，我国的经济与科学技术的发展速度都有所提升，但是与其他发达国家的电网建设水平相比还存在较大的差距，即便是这些发达国家的光纤技术已经较为成熟，也不能对我国的电量使用需求进行更为全面的满足。
尤其是一些技术自主研发的国家已经将光纤技术直接纳入到了可再生能源的智能电网建设中，我国在此方面的工作还处在一个研发的阶段，并且进展较慢。
我国在相关技术领域中进行了深度剖析与实践，从当前的发展趋势来看，我国电网在以下几个方面均做出了细致的探究：一是数字化变电站；二是大电网运行控制；三是电网环保和节能等，并在此基础上取得了可喜的科技成果，如灵活交流输电技术等。
2 电力电子技术在智能电网中的应用优势2.1 对电网进行优化以及安全进行保证在对电网进行电力电子技术革新时，可以发现其中存在很多的技术革新落脚点，在这些地方通过技术层面的创新，可让电网的输配电能力、电能质量得到提升。
在当前的电网建设中，通向智能化的发展战略中，使用先进的电力电子装置可以让电网系统运行的效率更高、稳定性更强。
先进电力电子技术在智能电网中的运用
先进电力电子技术在智能电网中的运用
文/冷海滨
摘
以先进电力电子技术为研究
对 象， 分 析 了 该 技 术 在 智 能 电 网 要 中应用的相关问题。先介绍了先
进电力电子技术对智能电网的影
响， 包 括 实 现 电 网 稳 定 运 行、 提
高 了 电 能 输 送 质 量 等； 再 结 合 电
力 电 子 技 术 的 实 际 情 况， 介 绍 了
相关技术在智能电网中的应用策
略， 希 望 能 对 相 关 人 员 工 作 有 所
帮助。
1.3 优化资源配置
就我国实际情况而言，地区之间的资源 分布不均匀，这一点在智能电网建设过程中都 有明确的体现。例如西南地区的水能资源丰富， 但是东部平原地区的水能资源少，针对这种资 源分布差异情况，利用先进电子电能技术就能 有效解决这一问题，依靠这一技术来优化智能 电网的建设思路，实现资源优化配置。
1.2 保证了电能质量
智能电网实现了电力传输的革新，让大量 的现代化电能手段可以被应用到电能传输中。 在这种大背景下，相关人员在智能电网构建中 推广了先进电力电子技术，能够优化智能电网 的技术格局，让智能电网有更多种的技术支持， 包括电力调控技术、电力运输技术等，这些技 术的应用强化了电能传输质量，满足社会的基 本需求。
1.1 有助于保证电网设备的平稳运行
安全用电是智能电网建设的主要目标， 现阶段我国的智能电网建设正处于起步阶段， 其中存在大量的不完善之处，通过先进电力电 子技术，能够进一步优化智能电网的设备运行 环境，例如通过电力电子技术来强化电子装置 对电力系统的调控等，这些对于智能电网的高 质量运行具有重要意义。
3 结论
电力系统与智能电网专业英语
电流变送器
32
voltage regulation
电压调整
13
Network interface card
网络接口卡
33
on load tap changing transformer（OLTC）
有载调压变
压器
14
Pulse Code Modulation
脉冲编码调制
fault calculations
短路计算
18
packet switching
包交换技术
38
load forecasting
负荷预测
19
fuel cells
燃料电池
39
leakage reactances,
漏电抗
20
twisted pair
双绞线
40
Human–Machine Interface
人机界面
姓名：班级：学号：
二、段落翻译
Original text:
Book1: Smart Grid-Technology and Applications(2012) : 269.
Large quantities of electrical energy can be stored using pumped hydro or underground compressed air facilities. Such schemes can have a power rating of up to 1-2 GW with an energy capacity of 10-20 GWh. Smaller quantities of energy can be stored in batteries, flywheels and Superconducting Magnetic Energy Storage (SMES) devices [1-3]. Fuel cells convert a continuous source of chemical energy into electricity but have a similar impact on the power network as some energy storage systems (for example, flow batteries).
电力电子技术在智能电网中的作用
国际电力市场
提供低廉的电价和提高能效 进行创新和提高竞争能力 有关垄断的规程修订
11
国外智能电网研究概况
智能电网研究机构
（1）美国能源部(DOE)是电网智能化研究的发起者和重要的投资者。 （2）“电网智能化联盟” 成员包括:
跨国技术公司：AREVA、GE、IBM；电力公司和电网运营商：AEP、 Bonneville电力管理局、PJM及法国EDF；研究机构：美国电科院 EPRI、Battelle、RDS和SAIC。 （3）电网智能化架构委员会（GWAC）由一系列的专家组成，受美国能源 部的部分资助，从事制定建立未来电网架构的原则。 （4）2005年欧洲委员会正式成立“智能电网欧洲技术论坛” 。欧洲还将成立 “智能电网协会” 。 （5）IEC去年底筹建SG3“智能电网”战略组。 根据目前掌握的情况，还没有智能电网的国际标准 或国家标准。
（1）European Smartagrids
Technology Platform ： Vision and Strategy for Europe’s Electricity Networks of the Future
欧洲智能电网技术平台：欧 洲未来电网的远景和策略
2005
(3)The SDD Strategic
电力通信基本实现主干通道 光纤化、数据传输网络化. 3
信息化水平已初 步达到建设智能
电网的要求
2 广域量测技术已大范围应 用,状态监测技术正大力推 进。
24
我国智能电网建设的基础条件
华东电网WAMAP系统，充分利用PMU的动态
数据，面向调度运行，重点解决电网安全稳定性
的在线监视、实时预警和在线辅助优化决策，率
智能电网英语作文
智能电网英语作文In the modern era, the concept of the smart grid has emerged as a transformative technology that promises to revolutionize the energy industry. The smart grid refers to an intelligent network of electricity generation, transmission, distribution, and consumption that utilizes advanced technologies such as sensors, meters, analytics, and automation to improve efficiency, reliability, and sustainability.The need for a smart grid arises from the growing demand for electricity coupled with the challenges posed by aging infrastructure and the integration of renewable energy sources. The traditional grid, with its limited capabilities and inflexible structure, is unable to meet these demands effectively. The smart grid, on the other hand, offers a dynamic and adaptive solution that can handle the complexities of modern energy systems.One of the key features of the smart grid is itsability to collect and analyze data in real-time. This is achieved through the deployment of smart meters and sensors throughout the grid. These devices monitor and transmitinformation about energy usage, demand, and supply,enabling utilities to make informed decisions aboutresource allocation and management. This data-driven approach not only improves operational efficiency but also enhances customer engagement and satisfaction.Another crucial aspect of the smart grid is its interoperability and integration capabilities. Itseamlessly integrates various energy sources, including renewables like solar and wind, with traditional power plants. This integration ensures a more balanced andreliable energy supply, reduces dependence on fossil fuels, and lowers greenhouse gas emissions. Furthermore, the smart grid's ability to connect and communicate with devices and appliances in homes and businesses enables demand response programs that encourage conservation and reduce peak demand. The benefits of the smart grid are numerous. Itimproves the overall efficiency of the energy system, reduces waste and losses, and enhances the reliability of power supply. It also promotes the integration of renewable energy, which is crucial for achieving sustainability and mitigating the impacts of climate change. Additionally, thesmart grid creates new business opportunities and economic growth by enabling innovative services and products in the energy sector.Despite its many advantages, the transition to a smart grid faces some challenges. These include technological complexities, high initial investments, and the need for widespread infrastructure upgrades. However, with continued research and development, as well as government policies and incentives, the smart grid has the potential to become a reality in the near future.In conclusion, the smart grid represents a significant leap forward in the energy industry. It offers a comprehensive solution to address the challenges of aging infrastructure, increasing demand, and the integration of renewable energy sources. By leveraging advanced technologies and data analytics, the smart grid can transform the way we generate, transmit, distribute, and consume electricity, making it more efficient, reliable, and sustainable.**智能电网：能源行业的革命**在现代社会，智能电网作为一项变革性技术，已经崭露头角，有望彻底改变能源行业。
电力电子技术在智能电网中的应用
电力电子技术在智能电网中的应用随着经济的快速发展和人民生活水平的提高，电力需求也在不断增长。
为满足巨大的电力需求，电力系统需要变得更加稳定，强大和可靠。
这就迫使电力系统的技术水平和管理方法得到不断的改进。
智能电网（Smart Grid）是电力系统发展的一个新的概念。
它是以先进的电力电子技术为支撑，充分利用信息技术，实现电力生产、传输、分配、使用的有效管理和优化。
智能电网的应用可以极大地提高电力系统的可靠性和效率，并促进可持续能源的使用。
电力电子技术在智能电网中发挥着重要的作用。
以下是电力电子技术在智能电网中的应用及其优点：1、高压直流输电技术高压直流输电技术（HVDC）是一种高效、可靠、环保的电力传输方式，它能将电力输送到远离发电站的地方，同时能够有效地利用可再生能源，如风能和太阳能等。
在智能电网中，HVDC技术能够实现不同电网之间的互联，提高电网的可靠性和稳定性。
2、电力电子变压器电力电子变压器（PET）是一种新型的电力变压器，它可以实现高效、轻量化、可调控。
PET能够实现无级调节，提高电力系统灵活性，增加电网的可靠性和稳定性。
3、发电厂和微电网的控制技术发电厂和微电网中的电力电子设备能够对发电机进行精确的控制，调节输出功率和频率。
此外，电力电子设备还能够实现多种能源的混合和管理，提高系统灵活性和可靠性。
4、光伏逆变器和风力发电系统光伏逆变器和风力发电系统是智能电网中的两个重要部分。
它们能够将可再生能源转化为电能，并将其并网到电网中。
这些设备所使用的电力电子技术能够实现高效、可靠、智能的转换。
综上所述，电力电子技术在智能电网中具有重要的作用。
它们能够提高电力系统的效率、稳定性和可靠性，促进可持续能源的使用，为人们提供更加安全、可靠、环保的电力服务。
随着电力电子技术不断的发展和创新，智能电网的应用也将得到不断的完善和提升。
探究先进电力电子技术在智能电网中的应用
【 关键词 】电力电子技术 ；智能电网；资源配置；电力协调
发展 对于 电力能源 的需求 ，推动我 国经济建设发 展以及社会进步 。
一
．
引言
２ ． 电 网稳定 需求 增加 我 国科学技 术领域 的发展推动 了 电子技术 的发展 和进 步 ，但 是我 国在 电力系统 的智 能电网当中应用 电子信息技术 ，推动其转变发展成为 更加 适合 电力系统 需求 的电力电子技术 还处于 初期探索 阶段 。并 且，
三．我国智能电网发展现状与发展趋 势
（ 一 ） 我 国 智能 电网 发展 现状 作为一 种新 型 电网模 式，智 能化 电网集合 了多种先进 的生产和 操 作技术 ，能极大地提升 电网的效率从而有 效降低 电能的损耗，节约电力 资源 ，同时还 能 电力 系统 内部各用 电单位 的用 电安全 。在 经济和技 术
ＥＬ ＥＣ ＴＲＯＮＩ ＣＳ Ｗ ＯＲＬ Ｄ ・
揉 究 先 进 电力 电子技 术在 智能 电网 中 的应用
淄博 市技 师 学院 孙 磊
【 摘要 】在计算机信息技术不断发展 的背景下，电力电子技术已经逐渐被应用到智能电网系统 当中，并且已经取得 了一定的成效。本文首先 对 电力 电子技 术进 行 了简单概 述 ，之后 对我 国智能 电 网发展 现状 以及 我 国智 能 电网未 来发展 趋 势进行 了分析 ，最后 重 点对 电力 电子技 术在 智 能 电网 中的应 用 策略进 行 了探 究 ， 旨在 为 关注这 一领 域 的人 士提供 一 些 可行性 较 高的参 考意 见 ，推动 我 国电 力事业 的繁 荣与发 展 。
１ ｔ ｔ ｉ 源较 少 。加 之大 部分 非 可再 生能 源正 在逐 渐 呈现 出能源 枯竭 的
状态 ，如何对 资 源进 行优 化配 置 ，提 高 电力资 源 的利用 点 问题 。 电力 资源 作为 一种 清洁 的可 再 生 能源 ，对 于我 国社 会发 展 、环 境保 护 以及经 济建 设等 方面 都具 有 十分 重要 的促 进 作用 ，智 能 电网 通过对 各 类能 源 资源 的合理 配置 ， 可 以 有 效调 节 社 会 资 源 分配 不 均 等 问题 ，促 进 能 源 资 源 的优 化 配 置 ，最终 推动 我 国社会 的可 持续 化发 展 。
自动化英语 专业电力电子技术在电力系统中的应用
Power electronic technology in the power systemAbstract:This paper aims at introducing the power electronic technology in electric power system of all kinds of application, the key is in power transmission link, link, link in the application and saving energy distribution in the link of use. Keywords:DC transmission; Power electronics; generatorIntroduction:Power electronic technology is a power semiconductor devices, circuit technology, computer technology and modern control technology for support technology platform. After 50 years of development, the traditional industry equipment in it, power quality control, issued new energy development and civil products have been applied more and more. The most successfully applied in the power system of power electronic technology is a high power dc transmission (HVDC). Since the 1980 s, flexible ac power (FACTS) concept is put forward, power electronic technology in power system, the application research was highly focused, a variety of equipment arise. This paper introduces the power electronic technology in power generation, transmission link, link in the application and saving energy distribution in the link of use. Second, the power electronic technology applicationPower electronic technology applications:Since the 1980 s, flexible ac power (FACTS) concept is put forward, power electronic technology in power system, the application research was highly focused, a variety of equipment arise. Has quite a few paper summarizes the related equipment and the basic principle and application situation. According to the power system of power generation, transmission and distribution and power saving link, the list of power electronic technology research and the application of the status quo.(A) In the power of the application of the linkThe power system of power generation link generator set a variety of equipment involved, the application of the power electronic technology to improve the equipment for the main purpose of the operation characteristic.1, Large generator excitation control of staticStatic excitation using thyristor rectifier since by way, the structure is simple, high reliability and low cost advantages, is the major world power system widely adopted. Due to tell the exciter among the inertial link, and thus has its unique speed adjustment, the control law to advanced provide fully play their part and produce good control effect of favorable conditions 2, The wind turbine hydraulic VSCF excitationThe hydraulic power effective power depends on the head pressure and flow, as head of the change to a larger extent (especially the pumped-storage unit), units of the best speed will change. Effective power of wind power and wind speed is directly proportional to the three times, the speed of the maximum wind power windmill capture with wind speed and change. In order to gain maximum effective power, can make the operation speed, by adjusting the rotor exciter current frequency, make its and the rotor speed stacked stator frequency output frequency that keep constant. The application of the technology is the key of the frequency conversion power.3, Power plant of variable frequency speed pump fanThe power plant factory electricity rates an average of 8%, and fan pump power consumption accounts for about 65% of total power consumption thermal power equipment, and low operation efficiency. Use the low voltage or high voltage inverter, the implementation of the pump fan variable frequency speed regulation, can achieve the purpose of saving energy.(B) In the application of transmission linkPower electronics device used in high voltage transmission system is called "caused by the silicon chips second revolution", greatly improved the stable operation of the grid characteristics.1, DC transmission (HVDC) and Light dc transmission (HVDC Light) technologyHVDC transmission capacity is big, good stability, flexible control regulation etc, and for long-distance transmission, submarine cable transmission and different frequency system networking, HVDC transmission with a unique advantage. The first thyristor change the flow, marking the formal power electronic technology used in dc transmission. From then on the world of the new HVDC project is using thyristor change flow valves.2, Flexible ac power (FACTS) technologyThe concept of dry FACTS technology came in the late 1980 s, is a based on power electronic technology and modern control technology for ac transmission system impedance, voltage and phase of the flexible regulate the transmission technology, can be used for communication with the trend of the power transmission flexible control greatly improve the level of the power system stability.(C) In the distribution of the application of the linkThe power distribution system is urgent needs to solve the question of how to strengthen the power supply reliability and improve power quality. Power quality control should not only meet the voltage, frequency, harmonic and asymmetric degree requirements, but also inhibit all kinds of transient fluctuations and interference. Power electronic technology and modern control technology in the distribution system of application, namely the user Power (custom Power) technology or say DFACTS technology, is in the mature technology FACTS developed on the basis of Power quality control of the new technology. DFACTS equipment can be understood as FACTS equipment smaller version, its principle, structure are the same, the function is similar. Due to the huge potential demand, market intervention in relative easy, investments in development and production cost is lower, with power electronics device prices lower, we can expect DFACTS equipment products will enter the rapid development.(D)In the use of energy saving link1, The variable load motor drive runningMotor power saving potential power saving just dig itself, through the variable load motor speed technology of power saving is another a only both up, motor power saving party more perfect. At present, exchange control in the metallurgy, mining and other departments and social life in a wide range of applications. First is fan and pump variable load in machinery such as the wind speed regulation control instead of board or throttle valve to control the wind flow and the flow of water has the remarkable effect. Foreign variable load of the fans and pumps is used mostly communication speed regulation, our country is the promoted application.Variable frequency speed advantage is wide speed range, high precision, high efficiency, can realize the continuous stepless speed regulation. In the process of poor transfer speed small loss, stator and rotor copper consumption is not large also, energy saving rate generally can reach up to about 30%.2, Reduce the reactive power loss, improve the power factorAt the electric equipment, transformer and exchange asynchronous motor belong to the perceptual load, the equipment in operation with not only the active power consumption, but also consume reactive power. Therefore, reactive power and active power supply, power quality guarantee is the indispensable part. In the power system should keep reactive power balance, otherwise, will make the system voltage reduction, equipment failure, power factor drops, will severely punished by voltage collapse, a system solution to crack, caused a big blackout accidents. So, when the power grid or electrical equipment reactive capacity is insufficient, should add outfit reactive compensation equipment, improve equipment power factor.Summary:Power electronic technology are developing continuously, new materials and new structure of the device was born in succession, computer technology progress for the practical application of modern control technology provide strong support in the application of all walks of life more and more widely.。
外文翻译—电力电子技术（英文+译文）
1 Power Electronic ConceptsPower electronics is a rapidly developing technology. Components are tting higher current and voltage ratings, the power losses decrease and the devices become more reliable. The devices are also very easy tocontrol with a mega scale power amplification. The prices are still going down pr. kVA and power converters are becoming attractive as a mean to improve the performance of a wind turbine. This chapter will discuss the standard power converter topologies from the simplest converters for starting up the turbine to advanced power converter topologies, where the whole power is flowing through the converter. Further, different park solutions using power electronics arealso discussed.1.1 Criteria for concept evaluationThe most common topologies are selected and discussed in respect to advantages and drawbacks. Very advanced power converters, where many extra devices are necessary in order to get a proper operation, are omitted.1.2 Power convertersMany different power converters can be used in wind turbine applications. In the case of using an induction generator, the power converter has to convert from a fixed voltage and frequency to a variable voltage and frequency. This may be implemented in many different ways, as it will be seen in the next section. Other generator types can demand other complex protection. However, the most used topology so far is a soft-starter, which is used during start up in order to limit the in-rush current and thereby reduce the disturbances to the grid.1.2.1 Soft starterThe soft starter is a power converter, which has been introduced to fixedspeed wind turbines to reduce the transient current during connection or disconnection of the generator to the grid. When the generator speed exceeds the synchronous speed, the soft-starter is connected. Using firing angle control of the thyristors in the soft starter the generator is smoothly connected to the grid over a predefined number of grid periods. An example of connection diagram for the softstarter with a generator is presented in Figure1.Figure 1. Connection diagram of soft starter with generators.The commutating devices are two thyristors for each phase. These are connected in anti-parallel. The relationship between the firing angle (﹤) and the resulting amplification of the soft starter is non-linear and depends additionally on the power factor of the connected element. In the case of a resistive load, may vary between 0 (full on) and 90 (full off) degrees, in the case of a purely inductive load between 90 (full on) and 180 (full off) degrees. For any power factor between 0 and 90 degrees, w ill be somewhere between the limits sketched in Figure 2.Figure 2. Control characteristic for a fully controlled soft starter.When the generator is completely connected to the grid a contactor (Kbyp) bypass the soft-starter in order to reduce the losses during normal operation. The soft-starter is very cheap and it is a standard converter in many wind turbines.1.2.2 Capacitor bankFor the power factor compensation of the reactive power in the generator, AC capacitor banks are used, as shown in Figure 3. The generators are normally compensated into whole power range. The switching of capacitors is done as a function of the average value of measured reactive power during a certain period.Figure 3. Capacitor bank configuration for power factor compensation ina wind turbine.The capacitor banks are usually mounted in the bottom of the tower or in thenacelle. In order to reduce the current at connection/disconnection of capacitors a coil (L) can be connected in series. The capacitors may be heavy loaded and damaged in the case of over-voltages to the grid and thereby they may increase the maintenance cost.1.2.3 Diode rectifierThe diode rectifier is the most common used topology in power electronic applications. For a three-phase system it consists of six diodes. It is shown in Figure 4.Figure 4. Diode rectifier for three-phase ac/dc conversionThe diode rectifier can only be used in one quadrant, it is simple and it is notpossible to control it. It could be used in some applications with a dc-bus.1.2.4 The back-to-back PWM-VSIThe back-to-back PWM-VSI is a bi-directional power converter consisting of two conventional PWM-VSI. The topology is shown in Figure 5.To achieve full control of the grid current, the DC-link voltage must be boosted to a level higher than the amplitude of the grid line-line voltage. The power flow of the grid side converter is controlled in orderto keep the DC-link voltage constant, while the control of the generator side is set to suit the magnetization demand and the reference speed. The control of the back-to-back PWM-VSI in the wind turbine application is described in several papers (Bogalecka, 1993), (Knowles-Spittle et al., 1998), (Pena et al., 1996), (Yifan & Longya, 1992), (Yifan & Longya, 1995).Figure 5. The back-to-back PWM-VSI converter topology.1.2.4.1 Advantages related to the use of the back-to-back PWM-VSIThe PWM-VSI is the most frequently used three-phase frequency converter. As a consequence of this, the knowledge available in the field is extensive and well established. The literature and the available documentation exceed that for any of the other converters considered in this survey. Furthermore, many manufacturers produce components especially designed for use in this type of converter (e.g., a transistor-pack comprising six bridge coupled transistors and anti paralleled diodes). Due to this, the component costs can be low compared to converters requiring components designed for a niche production.A technical advantage of the PWM-VSI is the capacitor decoupling between the grid inverter and the generator inverter. Besides affording some protection, this decoupling offers separate control of the two inverters, allowing compensation of asymmetry both on the generator side and on the grid side, independently.The inclusion of a boost inductance in the DC-link circuit increases the component count, but a positive effect is that the boost inductance reduces the demands on the performance of the grid side harmonic filter, and offers some protection of the converter against abnormal conditions on the grid.1.2.4.2 Disadvantages of applying the back-to-back PWM-VSIThis section highlights some of the reported disadvantages of the back-to-back PWM-VSI which justify the search for a more suitable alternative converter:In several papers concerning adjustable speed drives, the presence of the DC link capacitor is mentioned as a drawback, since it is heavy and bulky, it increases the costs and maybe of most importance, - it reduces the overall lifetime of the system. (Wen-Song & Ying-Yu, 1998); (Kim & Sul, 1993); (Siyoung Kim et al., 1998).Another important drawback of the back-to-back PWM-VSI is the switching losses. Every commutation in both the grid inverter and the generator inverter between the upper and lower DC-link branch is associated with a hard switching and a natural commutation. Since the back-to-back PWM-VSI consists of two inverters, the switching losses might be even more pronounced. The high switching speed to the grid may also require extra EMI-filters.To prevent high stresses on the generator insulation and to avoid bearing current problems (Salo & Tuusa, 1999), the voltage gradient may have to be limited by applying an output filter.1.2.5 Tandem converterThe tandem converter is quite a new topology and a few papers only have treated it up till now ((Marques & Verdelho, 1998); (Trzynadlowski et al., 1998a); (Trzynadlowski et al., 1998b)). However, the idea behind the converter is similar to those presented in ((Zhang et al., 1998b)), where the PWM-VSI is used as an active harmonic filter to compensate harmonic distortion. The topology of the tandem converter is shown inFigure 6.Figure 6. The tandem converter topology used in an induction generator wind turbine system.The tandem converter consists of a current source converter, CSC, in thefollowing designated the primary converter, and a back-to-back PWM-VSI, designated the secondary converter. Since the tandem converter consists of four controllable inverters, several degrees of freedom exist which enable sinusoidal input and sinusoidal output currents. However, in this context it is believed that the most advantageous control of the inverters is to control the primary converter to operate in square-wave current mode. Here, the switches in the CSC are turned on and off only once per fundamental period of the input- and output current respectively. In square wave current mode, the switches in the primary converter may either be GTO.s, or a series connection of an IGBT and a diode.Unlike the primary converter, the secondary converter has to operateat a high switching frequency, but the switched current is only a small fraction of the total load current. Figure 7 illustrates the current waveform for the primary converter, the secondary converter, is, and the total load current il.In order to achieve full control of the current to/from the back-to-back PWMVSI, the DC-link voltage is boosted to a level above the grid voltage. As mentioned, the control of the tandem converter is treated in only a few papers. However, the independent control of the CSC and the back-to-back PWM-VSI are both well established, (Mutschler & Meinhardt, 1998); (Nikolic & Jeftenic, 1998); (Salo & Tuusa, 1997); (Salo & Tuusa, 1999).Figure 7. Current waveform for the primary converter, ip, the secondary converter, is, and the total load current il.1.2.5.1Advantages in the use of the Tandem ConverterThe investigation of new converter topologies is commonly justifiedby thesearch for higher converter efficiency. Advantages of the tandem converter are the low switching frequency of the primary converter, and the low level of the switched current in the secondary converter. It is stated that the switching losses of a tandem inverter may be reduced by 70%, (Trzynadlowski et al., 1998a) in comparison with those of an equivalent VSI, and even though the conduction losses are higher for the tandem converter, the overall converter efficiency may be increased.Compared to the CSI, the voltage across the terminals of the tandem converter contains no voltage spikes since the DC-link capacitor of the secondary converter is always connected between each pair of input- and output lines (Trzynadlowski et al., 1998b).Concerning the dynamic properties, (Trzynadlowski et al., 1998a) states that the overall performance of the tandem converter is superior to both the CSC and the VSI. This is because current magnitude commands are handled by the voltage source converter, while phase-shift current commands are handled by the current source converter (Zhang et al., 1998b).Besides the main function, which is to compensate the current distortion introduced by the primary converter, the secondary converter may also act like an active resistor, providing damping of the primary inverter in light load conditions (Zhang et al., 1998b).1.2.5.2 Disadvantages of using the Tandem ConverterAn inherent obstacle to applying the tandem converter is the high number of components and sensors required. This increases the costs and complexity of both hardware and software. The complexity is justified by the redundancy of the system (Trzynadlowski et al., 1998a), however the system is only truly redundant if a reduction in power capability and performance is acceptable.Since the voltage across the generator terminals is set by the secondary inverter, the voltage stresses at the converter are high.Therefore the demands on the output filter are comparable to those when applying the back-to-back PWM-VSI.In the system shown in Figure 38, a problem for the tandem converter in comparison with the back-to-back PWM-VSI is the reduced generator voltage. By applying the CSI as the primary converter, only 0.866% of the grid voltage can be utilized. This means that the generator currents (and also the current through the switches) for the tandem converter must be higher in order to achieve the same power.1.2.6 Matrix converterIdeally, the matrix converter should be an all silicon solution with no passive components in the power circuit. The ideal conventional matrix converter topology is shown in Figure 8.Figure 8. The conventional matrix converter topology.The basic idea of the matrix converter is that a desired input current (to/from the supply), a desired output voltage and a desired output frequency may be obtained by properly connecting the output terminals of the converter to the input terminals of the converter. In order to protect the converter, the following two control rules must be complied with: Two (or three) switches in an output leg are never allowed to be on at the same time. All of the three output phases must be connected to an input phase at any instant of time. The actual combination of the switchesdepends on the modulation strategy.1.2.6.1 Advantages of using the Matrix ConverterThis section summarises some of the advantages of using the matrix converter in the control of an induction wind turbine generator. For a low output frequency of the converter the thermal stresses of the semiconductors in a conventional inverter are higher than those in a matrix converter. This arises from the fact that the semiconductors in a matrix converter are equally stressed, at least during every period of the grid voltage, while the period for the conventional inverter equals the output frequency. This reduces thethermal design problems for the matrix converter.Although the matrix converter includes six additional power switches compared to the back-to-back PWM-VSI, the absence of the DC-link capacitor may increase the efficiency and the lifetime for the converter (Schuster, 1998). Depending on the realization of the bi-directional switches, the switching losses of the matrix inverter may be less than those of the PWM-VSI, because the half of the switchings become natural commutations (soft switchings) (Wheeler & Grant, 1993).1.2.6.2 Disadvantages and problems of the matrix converterA disadvantage of the matrix converter is the intrinsic limitation of the output voltage. Without entering the over-modulation range, the maximum output voltage of the matrix converter is 0.866 times the input voltage. To achieve the same output power as the back-to-back PWM-VSI, the output current of the matrix converter has to be 1.15 times higher, giving rise to higher conducting losses in the converter (Wheeler & Grant, 1993).In many of the papers concerning the matrix converter, the unavailability of a true bi-directional switch is mentioned as one of the major obstacles for the propagation of the matrix converter. In the literature, three proposals for realizing a bi-directional switch exists. The diode embedded switch (Neft & Schauder, 1988) which acts like a truebi-directional switch, the common emitter switch and the common collector switch (Beasant et al., 1989).Since real switches do not have infinitesimal switching times (which is not desirable either) the commutation between two input phases constitutes a contradiction between the two basic control rules of the matrix converter. In the literature at least six different commutation strategies are reported, (Beasant et al., 1990); (Burany, 1989); (Jung & Gyu, 1991); (Hey et al., 1995); (Kwon et al., 1998); (Neft & Schauder, 1988). The most simple of the commutation strategies are those reported in (Beasant et al., 1990) and (Neft & Schauder, 1988), but neither of these strategies complies with the basic control rules.译文1 电力电子技术的内容电力电子技术是一门正在快速发展的技术,电力电子元器件有很高的额定电流和额定电压,它的功率减小元件变得更加可靠、耐用.这种元件还可以用来控制比它功率大很多倍的元件。
先进电力电子技术在智能电网中的应用
先进电力电子技术在智能电网中的应用信息化、自动化以及数字化是现代智能电网的发展趋势，电力电子是实现电网智能化的前提，它在智能电网的应用既是电网技术的要求也是市场经济发展的需求，它制约着整个电网的技术发展，同时影响电网输出的电能质量和电压的稳定性，文章简述电力电子技术在智能电网的应用，重点介绍SVC和STATCOM 的发展和应用情况，以及它对电网的影响。
标签：电力电子技术；智能电网；SVC；STA TCOM引言随着经济的发展和社会的进步，我国的用电量逐步加大，对电能质量和电压的稳定性要求也越来越高，因此电网的建设面临着前所未有的新挑战。
电网的建设和发展需要先进电力电子技术做铺垫。
因此对于先进电力电子技术的研究对整个电网的建设具有重要的意义，甚至对我国经济的发展都起到关键的作用。
1 智能电网对电力电子技术的要求目前，电力电子技术虽然取得一定的进步但是仍然存在诸多的问题。
例如如何让它实现最大的优化控制改善电能的质量、减小对电网的污染，这都是需要解决的问题。
安全使用电力电子器件是另一个急需解决的问题，在安全的前提下才可以实现其他的应用。
我国的电网建设和电网结构虽然相对稳定但是仍存在很多问题，需要提高电网建设的要求和利用先进电力电子器件提高电网输出电能的质量。
而随着经济的不断发展，电力需求量也越来越大，大电网的建设必然是今后电力事业发展的方向，这也就意味着电网的结构也会越来越复杂，我国地理地域辽阔气候复杂，因此电网所面临的条件很复杂，这就需要利用先进的电力电子技术，采用先进的电子装置来调控电力系统，以增强电网的构架，避免电网故障的扩散，并增强电网的故障抵抗和故障恢复能力，这些问题都是可以通过先进电力电子技术的应用得到改善。
社会的进步对电能的需求量变大同时对电能的质量要求也是越来越高，输出电能质量如果达不到要求会对整个电网产生重大影响，带来的损失也是不可估量的。
先进电力电子设备可以改善电网电能质量，大大的提高输电效率和经济发展。
电力电子技术中英文词汇对照表
电力电子技术中英文词汇对照表电力电子技术中英文词汇对照表中文英文词汇对照（按汉语拼音排序）A安全工作区 Safe Operating Area—SOAB半桥电路 Half Bridge Converter贝克箝位电路 Baker Clamping Circuit变频器Frequency Inverter变压变频 Variable V oltage Variable Frequency—VVVF并联谐振式逆变电路 Parallel-Resonant Inverter不间断电源 Uninterruptable Power Supply—UPSC场控晶闸管 Field Controlled Thyristor—FCT触发Trigger触发角Trigger Angle触发延迟角 Trigger Delay Angel磁心复位 Magnetic Core ResetD单端电路 Single End Converter单相半波可控整流电路Single-phase Half-Wave Controlled Rectifier 单相半桥逆变电路 Single-Phase Half-Bridge Inverter 单相桥式全控整流电路Single-Phase Full-Bridge Controlled Rectifier 单相全波可控整流电路 Single-Phase Full-Wave Controlled Rectifier 单相全桥逆变电路 Single-Phase Full-Bridge Inverter 导通角Conduction Angle电力半导体器件 Power Semicondutor Device电力变换 Power Conversion电力场效应晶体管 Power MOSFET电力二极管 Power Diode电力电子技术 Power Electronic Technology电力电子器件 Power Electronic Device电力电子系统 Power Electronic System电力电子学 Power Electronics电力晶体管 Giant Transistor—GTR(电流)断续模式 Discontinuous Conduction Mode—DCM 电流可逆斩波电路 Current Reversible Chopper(电流)连续模式 Continuous Conduction Mode—CCM 电气隔离 Electrical Isolation电网换流 Line Commutation电压(源)型逆变电路 V oltage Source Type Inverter—VSTI 电流(源)型逆变电路 Current Source Type Inverter—CSTI 断态(阻断状态) Off-State多重化Multiplex多重逆变电路 Multiplex Inverter多电平逆变电路 Multi-Level InverterE二次击穿 Second BreakdownF反激电路 Flyback Converter负载换流 Load CommutationG高压集成电路 High V oltage IC—HVIC功率变换技术 Power Conversion Technique功率集成电路 Power Integrated Circuit—PIC功率模块 Power Module功率因数 Power Factor—PF功率因数校正 Power Factor Correction—PFC关断Turn-off光控晶闸管 Light Triggered Thyristor—LTT规则采样法 Rule Sampling MethodH恒压恒频 Constant V oltage Constant Frequency—CVCF缓冲电路 Snubber Current环流Loop Current换流CommutationJ畸变功率 Distortion Power基波因数 Fundamental Factor集成门极换流晶闸管Integrated Gate-Commutated Thyristor—IGCT 间接电流控制 Indirect Current control 间接直流变换电路 Indirect DC-DC Converter降压斩波器 Buck Chopper,step down chopper交流电力电子开关 AC Power Electronic Switch交流电力控制 AC Power Control交流调功电路 AC Power Controller交流调压电路 AC V oltage Controller交交变频电路 AC/AC Frequency Converter静电感应晶闸管 Static Induction Thyristor—SITH静电感应晶体管 Static Induction Transistor—SIT静止无功补偿器 Static Var Compensator —SVC晶闸管Thyristor晶闸管控制电抗器 Thyristor Controlled Reaction—TCR晶闸管投切电容器 Thyristor Switched Capacitor—TSC矩阵式变频电路 Matrix Frequency Converter绝缘栅双极晶体管 Insulated-Gate Bipolar Transistor—IGBTK开通Turn-on开关电源 Switching Mode Power Supply开关损耗 Switching Loss开关噪声 Switching Noise可关断晶闸管 Gate Turn-Off Thyristor—GTO可控硅Silicon Controlled Rectifier—SCR控制电路 Control Circuit快恢复二极管 Fast Recovery Diode—FRD快恢复外延二极管 Fast Recovery Epitaxial Diode—FRED快速晶闸管 Fast Switching Thyristor—FST快速熔断器 Fast Acting FuseL零电流Zero Current零电压Zero V oltage零电压转换PWM电路Zero V oltage Transition PWM Converter 零电压准谐振电路 ZVS Quasi-Resonant Converter 零开关Zero Switching零转换Zero Transition漏感Leakage IndcutanceM脉冲宽度调制 Pulse-Width Modulation—PWMN逆变Inversion逆导晶闸管 Reverse Conducting Thyristor—RCTP普通二极管 General Purpose DiodeQ器件换流 Device Commutation强迫换流 Forced Commutation桥式可逆斩波电路 Bridge Reversible Chopper擎住效应 Latching Effect驱动电路 Driving Circuit全波整流电路 Full Wave Rectifier全桥电路 Full Bridge Converter全桥整流电路 Full Bridge RectifierR软开关Soft SwitchingS三相半波可控整流电路Three-Phase Half-Wave Controlled Rectifier 三相桥式可控整流电路Three-Phase Full-Bridge Controlled Rectifier 升降压斩波电路 Boost-Buck Chopper, Step Up & Down Chopper升压斩波电路 Boost Chooper,Step Up Chopper双端电路 Double End Converter双极结型晶体管 Bipolar Junction Transistor—BJT双向晶闸管 Triode AC Switch—TRIACT特定谐波消去PWM Seleted Harmonic Elimination PWM—SHEPWM 同步调制 Synchronous Modulation同步整流电路 Synchronous Rectifier通态(导通状态) On-State推挽电路 Push-Pull ConverterW位移因数 Displacement Factor无源逆变 Reactive InvertX吸收电路 Absorbe Circuit相控Phase Controlled肖特基二极管 Schottky Diode肖持基势垒二极管 Schottky Barrier Diode—SBD谐波Harmonics谐波电流总畸变率 T otal Harmonic Distortion for i—THD谐振Resonation谐振直流环电路 Resonant DC LinkY异步调制 Asynchronous Modulation移相全桥电路 Phase Shift Controlled Full Bridge Converter 硬开关Hard Switching有源逆变 Regenerative InvertZ正激电路 Forward Converter正弦PWM Sinusoidal PWM—SPWM整流Rectification整流电路 Rectifier整流二极管 Rectifier Diode滞环比较方式 Hysteresis Comparison直交直电路 DC-AC-DC Converter直接电流控制 Direct Current Control直流—直流变换器 DC/DC Converter直流斩波 DC Chopping直流斩波电路 DC Chopping Circuit智能功率集成电路 Smart Power IC—SPIC智能功率模块 Intelligent Power Module—IPM中性点箝位型逆变电路 Neutral Point Clamped Inverter周波变流器 Cycloconvertor主电路Main Circuit, Power Circuit准谐振Quasi-Resonant自然采样法 Natural Sampling Method其他Boost变换器 Boost ConverterBuck变换器 Buck ConverterCuk斩波电路 Cuk ChopperMOS控制晶闸管 MOS Controlled Thyristor—MCTn次谐波电流含有率 Harmonic Ratio for In—HRInPWM跟踪控制 PWM Tracking controlPWM整流电路 PWM RectifierSepic斩波电路 Sepic ChopperZeta斩波电路 Zeta Chopper英文中文词汇对照AAbsorbe Circuit 吸收电路AC power control 交流电力控制AC Power Controller 交流调功电路AC Power Electronic Switch 交流电力电子开关AC V oltage Controller 交流调压电路AC/AC frequency Converter 交交变频电路Asynchronous Modulation 异步调制BBaker Clamping Circuit 贝克箝位电路Bipolar Junction Transistor—BJT 双极结型晶体管Boost Chooper, Step Up Chopper 升压斩波电路Boost Converter Boost变换器Boost-Buck Chopper, Step Up & Down Chopper 升降压斩波电路Bridge Reversible Chopper 桥式可逆斩波电路Buck Chopper, Step Down Chopper 降压斩波器Buck Converter Buck变换器CCommutation 换流Conduction Angle 导通角Constant V oltage Constant Frequency—CVCF 恒压恒频Continuous Conduction Mode—CCM (电流)连续模式ControlCircuit 控制电路Cuk Chopper Cuk斩波电路Current Reversible Chopper 电流可逆斩波电路Current Source Type Inverter—CSTI 电流(源)型逆变电路Cycloconvertor 周波变流器DDC Chopping 直流斩波DC Chopping Circuit 直流斩波电路DC/DC Converter 直流—直流变换器DC-AC-DC Converter 直交直电路Device Commutation 器件换流Direct Current Control 直接电流控制Discontinuous Conduction Mode—DCM (电流)断续模式Displacement Factor 位移因数Distortion Power 畸变功率Double End Converter 双端电路Driving Circuit 驱动电路EElectrical Isolation 电气隔离FFast Acting Fuse 快速熔断器Fast Recovery Diode—FRD 快恢复二极管Fast Recovery Epitaxial Diode—FRED 快恢复外延二极管Fast Switching Thyristor—FST 快速晶闸管Field Controllded Thyristor—FCT 场控晶闸管Flyback Converter 反激电路Forced Commutation 强迫换流Forward Converter 正激电路Frequency Inverter 变频器Full Bridge Converter 全桥电路Full Bridge Rectifier 全桥整流电路Full Wave Rectifier 全波整流电路Fundamental Factor 基波因数GGate Turn-Off Thyristor—GTO 可关断晶闸管General Purpose Diode 普通二极管Giant Transistor—GTR 电力晶体管HHalf Bridge Conwerter 半桥电路Hard Switching 硬开关Harmonic Ratio for In—HRIn n次谐波电流含有率Harmonics 谐波High V oltage IC—HVIC 高压集成电路Hysteresis Comparison 滞环比较方式IIndirect Current control 间接电流控制Indirect DC-DC Converter 间接直流变换电路Insulated-Gate Bipolar Transistor—IGBT 绝缘栅双极晶体管Integrated Gate-Commutated Thyristor—IGCT 集成门极换流晶闸管Intelligent Power Module—IPM 智能功率模块Inversion 逆变LLatching Effect 擎住效应Leakage Indcutance 漏感Light Triggered Thyristor—LTT 光控晶闸管Line Commutation 电网换流Load Commutation 负载换流Loop Current 环流MMagnetic Core Reset 磁心复位Main Circuit, Power Circuit 主电路Matrix Frequency Converter 矩阵式变频电路MOS Controlled Thyristor—MCT MOS控制晶闸管Multi-Level Inverter 多电平逆变电路Multiplex 多重化Multiplex Inverter 多重逆变电路NNatural Sampling Method 自然采样法Neutral Point Clamped Inverter 中性点箝位型逆变电路OOff-State 断态(阻断状态)On-State 通态(导通状态)PParallel-Resonant Inverter 并联谐振式逆变电路Phase Controlled 相控Phase Shift Controlled Full Bridge Converter 移相全桥电路Power Conversion 电力变换Power Conversion Technique 交流技术Power Diode 电力二极管Power Electronic Device 电力电子器件Power Electronic System 电力电子系统Power Electronic T echnology 电力电子技术Power Electronics 电力电子学Power Factor—PF 功率因数Power Factor Correction—PFC 功率因数校正Power Integrated Circuit—PIC 功率集成电路Power Module 功率模块Power MOSFET 电力场效应晶体管Power Semicondutor Device 电力半导体器件Pulse-Width Modulation—PWM 脉冲宽度调制Push-Pull Converter 推挽电路PWM Rectifier PWM整流电路PWM Tracking Control PWM跟踪控制QQuasi-Resonant 准谐振RReactive Invert 无源逆变Rectification 整流Rectifier 整流电路Rectifier Diode 整流二极管Regenerative Invert 有源逆变Resonant DC Link 谐振直流环电路Resonation 谐振Reverse Conducting Thyristor—RCT 逆导晶闸管Rule Sampling Method 规则采样法SSafe Operating Area—SOA 安全工作区Schottky Barrier Diode—SBD 肖持基势垒二极管Schottky Diode 肖特基二极管Second Breakdown 二次击穿Seleted Harmonic Elimination PWM—SHEPWM 特定谐波消去PWM Sepic Chopper Sepic斩波电路Silicon Controlled Rectifier—SCR 可控硅Single End Converter 单端电路Single-Phase Full-Bridge Controlled Rctifier 单相桥式全控整流电路Single-Phase Full-Bridge Inverter 单相全桥逆变电路Single-Phase Full-Wave Controlled Rectifier 单相全波可控整流电路Single-Phase Half-Bridge Inverter 单相半桥逆变电路Single-phase Half-Wave Controlled Rectifier 单相半波可控整流电路Sinusoidal PWM—SPWM 正弦PWMSmart Power IC—SPIC 智能功率集成电路Snubber Current 缓冲电路Soft Switching 软开关Static Induction Thyristor—SITH 静电感应晶闸管Static Induction Transistor—SIT 静电感应晶体管Static Var Compensator —SVC 静止无功补偿器Switching Loss 开关损耗Switching Mode Power Supply 开关电源Switching Noise 开关噪声Synchronous Modulation 同步调制Synchronous Rectifier 同步整流电路TThree-Phase Full-Bridge Controlled Rectifier 三相桥式可控整流电路Three-Phase Half-Wave Controlled Rectifier 三相半波可控整流电路Thyristor 晶闸管Thyristor Controlled Reaction—TCR 晶闸管控制电抗器Thyristor Switched Capacitor—TSC 晶闸管投切电容器Total Harmonic Distortion for i—THD 谐波电流总畸变率Trigger 触发Trigger Angle 触发角Trigger Delay Angel 触发延迟角Triode AC Switch—TRIAC 双向晶闸管Turn-off 关断Turn-on 开通UUninterruptable Power Supply—UPS 不间断电源VVariable V oltage Variable Frequency—VVVF 变压变频V oltage Source Type Inverter—VSTI 电压(源)型逆变电路ZZero Current 零电流Zero Switching 零开关Zero Transition 零转换Zero V oltage 零电压Zero V oltage Transition PWM Converter 零电压转换PWM电路Zeta Chopper Zeta斩波电路ZVS Quasi-Resonant Converter 零电压准谐振电路。
电力电子技术简介英语作文
Introduction to Power Electronics Technology(电力电子技术简介)Power electronic technology is divided into two branches: power electronic device manufacturing technology and current conversion technology.Now it has become an indispensable professional basic course for the modern electrical engineering and automation specialty, and plays an important role in training the professional talents.Power electronics technology is a new discipline based on electronics, electrical principles and automatic control. Because it is a high-power electrical technology, and mostly serves the industry using strong electricity, it is often classified as electrician. Power electronic technology mainly includes power electronic devices, power electronic circuits, power electronic devices and systems. Semiconductor is the basic material of power electronic devices, and monocrystalline silicon is the most commonly used material; Its theoretical basis is semiconductor physics; Its technology is semiconductor device technology. Microelectronics technology has been widely used in modernnew power electronic devices. Power electronic circuits have absorbed the theoretical basis of electronics. According to the characteristics of devices and the requirements of power conversion, many power conversion circuits have been developed. These circuits also include various secondary circuits and peripheral circuits such as control, trigger, protection, display, information processing, relay contact, etc. According to different application objects, these circuits are used to form complete machines for various purposes, which are called power electronic devices. These devices often form a system with loads and supporting equipment. Electronics, electrotechnics, automatic control, signal detection and processing and other technologies are often widely used in these devices and systems.。
电力系统智能电网专业英语
一、词汇翻译
序号
英文
中文
序号
英文
中文
1
power system
电力系统
21
distribution network
配电网
2
smart grid
智能电网
22
transmission network
输电网
3
load flow
潮流
23
transmission line
输电线路
4
impedance
无功补偿
38
the bus-coupler breaker
母联断路器
19
short-circuits
短路
39
gas insulated switchgear(GIS)
气体绝缘开关
20
contingency analysis
事故分析
40
load forecasting
负荷预测
姓名:班级:学号:
二、段落翻译
A major issue in the design and implementation of a meter data management system ishow to make it open and flexible enough to integrate to existing business/enterprise applicationsand deliver better services and more value to customers while ensuring data security.Besides the common database functionalities,a meter data management system for smartmetering also provides functions such as remote meter connection/disconnection,powerstatus verification,supply restoration verification and on-demand reading of remote smartmeters.
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第33卷第15期电网技术V ol. 33 No. 15 2009年8月Power System Technology Aug. 2009 文章编号：1000-3673（2009）15-0001-06 中图分类号：TM7；TM1 文献标志码：A 学科代码：470·4031电力电子技术在智能电网中的应用荆平1，郭剑波2，赵波1，周飞1，王志冰3（1．中国电力科学研究院，北京市海淀区 100192；2．国家电网公司，北京市西城区 100031；3．上海交通大学电子信息与电气工程学院，上海市闵行区 200240）Applications of Power Electronic Technologies in Smart GridJING Ping1，GUO Jian-bo2，ZHAO Bo1，ZHOU Fei1，WANG Zhi-bing3（1．China Electric Power Research Institute，Haidian District，Beijing 100192，China；2．State Grid Corporation of China，Xicheng District，Beijing 100031，China；3．School of Electronic Information and Electrical Engineering，Shanghai Jiao Tong University，Minhang District，Shanghai 200240，China）ABSTRACT: The strong smart grid not only places a high demand on security, stability and economy of power system, but also requires flexibility and controllability beyond their current levels. Power electronic technologies, represented by flexible transmission technology, custom power technology and energy storage technology, are the important supporting technologies for strong smart grid. This paper presents a solution approach based on power electronic technologies. During the future construction of smart grid, this solution can optimize operating conditions of transmission networks, expand operation control technologies of power grid, and guarantee security, stability and economy of power system. Up to now, key technologies of this solution have already been applied in some projects, which verifies its feasibility and effectiveness.KEY WORDS: power electronic technology；smart grid；flexible transmission technology；custom power technology；energy storage technology摘要：坚强智能电网不仅对电网的安全、稳定和经济运行水平提出很高的要求，而且需要电网具有超越现有水平的灵活性和可控性。
以灵活输电技术、用户电力技术和电力储能技术为代表的电力电子技术是实现坚强智能电网的重要技术支撑。
在文章中，提出了一种基于电力电子技术的应用方案。
在未来智能电网的建设过程中，该方案可以优化输电网络的运行条件，扩展电网的运行控制技术，保障电网安全、稳定、经济运行。
目前，该方案中的关键技术已经应用在一些工程项目中，表明该方案是可行且有效的。
关键词：电力电子技术；智能电网；灵活输电技术；用户电力技术；电力储能技术0 IntroductionThe next few decades are an important period for China to further develop industrialization, urbanization, informatization and modernization. During this period, economy will continuously be developed in a steady and rapid way. And it is also a crucial period to harmoniously develop energy and economy. To become a resource saving and environment friendly society[1-2], China should make an effort to save energy and reduce emission. Considering the current distribution of energy and load and fundamental realities of the primary stage of socialism, State Grid Corporation of China proposed to build a strong smart grid with mutual coordinated power grids at all levels according to the general requirements for security, reliability, efficiency, low pollution, self-healing and adjustability. The strong smart grid will achieve flexible accessing of diversified supplies and power users with different characteristics, greatly optimize the allocation of resources, and further improve the service capability.In view of general requirements of strong smart grid in China, the paper proposed a power electronic application solution based on flexible transmission technology, custom power technology and advanced energy storage technology. The solution can optimize operating conditions of transmission networks, expand flexible control means for power grid, and guarantee security, stability, and economy.1 Major problems in future power grid of China1.1 Ability to optimize resources allocation needs to be improvedChina’s energy resources are mainly distributed in2荆平等：电力电子技术在智能电网中的应用V ol. 33 No. 15relatively backward areas, such as west, north and southwest, and energy consumption is mainlyconcentrated in developed eastern and central regions.Overall, the large-sized coal-electricity bases in westand north and large-sized hydropower bases insouthwest generally are 800 to 3 000 km away fromload centers in east, and power transmission scale islarge and distance is long. Due to the limit of capacityand transmission distance, low utilization rate of transmission corridor and large network loss, the currentpower grids cannot flexibly adapt to national energypolicies and industry development needs any more.In addition, in order to optimize energy structure,enhance energy efficiency and improve climate adaptability, the government has intensified thedevelopment of wind, solar and other renewable energies. For the large-scale renewable energy basesin Three North areas, the local demand is not largeenough to consume all local electricity. It’s necessaryto transmit electricity through long-distance grids toload centers. Due to intermittence and fluctuation ofrenewable energies, establishment andimplementation of accurate power generation plan isimpossible. Accordingly, renewable energies put forward higher requirements for admission capabilityand resource allocation optimization of power grid.1.2 Power grid security is facing new challengesTo deal with sustained and rapid growth of powerdemand, China is building the AC/DC hybrid gridwith the highest voltage level and largest scale in theworld. Technologies of flexible AC transmissionsystem (FACTS), including high capacity controllableseries compensation and static var compensation, areused during power grid construction to improve thesecurity and stability of power grid. At present,majority of security and stability control measures practically used in large-sized power grids are still preventive, their trigger control signals are mainly based on local information. It brings a certain risk ofcascading triggering in some operation modes. On theother hand, the active control measures of security andstability based on global information are still on theresearch and development stage. There is a gap topractical application.2 Features and technical requirements ofsmart grid in China According to economic and social developmentrequirements on future power grid, the smart grid inour country should have the following basic features:1）Low pollution. A large-scale of renewable energies can be fed into the grid to reduce the potential impact on the environment. 2）Strong. Be able to withstand severe weather conditions and power grid disturbances. 3）Self-healing. Be able to realize self-diagnosis, self-adjusting, automatic fault isolation and automatic recovery.4）Optimization. Optimize resources, improve asset utilization and operational efficiency of the grid. 5）Interactivity. Implement interaction with and real-time response to power market and users, thus improving service levels.6）Economy. Provide quality power to society at optimal cost.In order to achieve inter-regional economic dispatching, optimize resources allocation, gain the capabilities of powerful anti-disturbance and rapid self-healing, guarantee the reliable access of both diversified supplies and power users with different characteristics, meet diversified service requirements of power generation users and power users that are continuously raised, key technologies in smart grid(such as power flow control, system damping, dynamic reactive power compensation, short-circuit current limitation, over-voltage suppression, smooth power conditioning for integrated energy storage) andtheir corresponding devices need further research anddevelopment. And technologies, such as bilateralinteractive technology for automatic control betweengrid and unit, out-of-the-box technology for gridconnected operation of renewable energies,technology for accessing power supplies and energystorage devices, and charging station technology, willbecome important subjects in smart grid.3 Applications of power electronics technologies in smart grid The strong smart grid not only places a high demand on security, stability and economy, but also requires flexibility and controllability that are beyond their current levels. Power electronic technologies, such as flexible transmission technology, custom power technology and energy storage technology, arethe important supporting technologies to realize strongsmart grid. Fig. 1 is the diagram of applications ofpower electronics technologies in strong smart grid [1,3].第33卷 第15期电 网 技 术 3MSSMESStoragePHEV SMESPVWINDSVCSVCTCSCTCSCVSC FCL SVCVSC VSC STATCOMBESSBESS To southSTATCOM BESSLarge scale renewableenergy sourcehydropowerBackbone networks Control centerVirtual power plantMicrogrid loadHouse loadDGSTATCOM图1 电力电子技术在坚强智能电网中的应用示意图Fig. 1 Schematic diagram of applications of power electronics technologies in strong smart gridFrom Fig. 1, we can see that smart grid mainly embodies in:1）Physical network. The physical network with mutual coordinated power grids at all levels is not only the physical carrier of strong smart grid, but also the foundation to realize the smart grid.2）Support point of power grid. Support points mainly include substation/converter station, energy storage point, compensation point, distributed network control point and so on. They are the foundation to realize various application functions of strong smart grid, and also the key points to support the smart grid.3）Devices in the smart grid. Various flexible and reliable devices in strong smart grid (such as flexible AC transmission system, distribution flexible AC transmission system, electricity storage, etc), which meet the requirement for safe and economic operation, are important methods to achieve the overall objects of smart grid.4）Intelligent operation. It is integration of power flow and information flow that realizes flexible adjustment and reconstruction of power grid operation mode, and ensures reliable accessing of diversified supplies and power users with different characteristics. The intelligent operation is a concrete manifestation of smart grid. The specific applications of power electronics technologies in smart grid are as follows:1）Power transmission from large-scale energy bases. Power transmission from large-scale energy bases has characteristics of high capacity and long distance. Conventional thyristor based power electronic devices, such as thyristor controlled series compensator (TCSC), thyristor switched series compensator (TSSC), can improve the capacity of active power flow transmission effectively; static var compensator (SVC) and controllable shunt resistor (CSR) can continuously, rapidly and dynamically compensate reactive power of power system, and reduce reactive power flow and line losses. The new generation of power electronic devices based on the fully controlled components, such as static synchronous compensator (STATCOM), static synchronous series compensator (SSSC), unified power flow controller (UPFC), grid power flow controller (GPFC), interline power flow controller (IPFC), etc, are much compacter and have the greatly improved performance. They will hopefully be applied widely in smart grid.2）Wind/photovoltaic/storage hybrid generation. According to the smart grid development roadmap of our country, wind power and photovoltaic power4 荆平等：电力电子技术在智能电网中的应用V ol. 33 No. 15generation system should meet the requirements of large-scale access on self-adaptation. Because of the instability of wind energy and solar energy, the coordination between generation and load is the most important. At present, generation of renewable energy (which is represented by wind energy and solar energy) is connected to power systems through high power converters. Converters can realize energy conversion, power quality improvement, active and reactive power decoupling control, and make it easier to achieve a friendly connection to power grid, but they cannot balance intermittent power fluctuations or improve system stability. Power energy storage could play a role in reducing peak power and compensating valley power, thus increasing utilization of wind power and photovoltaic power generation. The combination between high power voltage source converters and large capacity storage devices can not only level intermittent power fluctuations, but also meet requirements for energy storage and peak regulation, system stability improvement and power quality enhancement at the same time, and therefore realizing the flexible connection between renewable energy sources and power systems.3）Safe and economic operation of power grid. The development trend of smart grid is interconnection of regional power grids and coordinated control of power grids at all levels. This requires a flexible operation mode and more advanced technologies, such as power flow control, system damping, dynamic reactive power compensation, short-circuit current limitation, over-voltage suppression, network reconfiguration, automatic fault isolation, etc. FACTS technologies are important toolsto achieve economic and secure power grids. On research and application of FACTS technologies, China is now in the leadership position: technologies, such as fixed series compensation (FSC), thyristor controlled series compensation (TCSC), static var compensation (SVC), controllable shunt resistance (CSR), static synchronous compensation (STATCOM), have been applied in large scale; fault current limiting (FCL) and unified power flow control (UPFC) have been in the research process. In future, key breakthroughs will be made on development of multi-functional complex-type FACTS devices, such as configurable static converter (CSC), and on the coordinated control technology based on system-wide integrated information. This will play an important role in the construction of strong smart grid.4）The plug-and-play of distributed power supplies. Power electronic transformer (PET), which achieves the effective isolation between distributed power supply and power grid, can not only replace traditional transformers, but also simultaneously realize dynamic reactive power compensation, FCL, power quality control, soft cut-in and soft separation, etc, providing an important technical means for the “plug and play” of distributed power supplies. At present, distributed power supplies are mainly connected to power grid via converters. While, in future, low voltage converter technologies may be combined with low cost energy storage technologies. And as a result, an integrated energy storage and converter device, which is used for connection of distributed power supply to grid, will be developed to realize energy exchange between distributed generation units and energy storage units, and power supply from energy storage units to power load. For power grid, this can help reduce peak power and compensate valley power, enhance load rate, and reduce total installed system capacity. And users can get certain economic interests by purchasing electricity at low-price and selling at high-price according to adjustments of peak and valley prices.5）Custom power technology. In future smart grids, different power users are free to participate in the power market to customize power energy and trade power indices, and they pay more attention to power quality problems. Therefore the real-time, flexible control of power grid voltage and current waveforms becomes more necessary. Now, common power devices for users include distribution static synchronous compensator (DSTATCOM), dynamic voltage restorer (DVR), active power filter (APF), solid state transfer switch (SSTS), unified power quality conditioner (UPQC), etc. These devices are mainly used to control power quality problems, such as harmonic, reactive power, flicker and unbalance that are caused by disturbing load, and voltage sags and swells caused by power system fault, starting of large generator or electric railway. In order to maximize the effectiveness of control devices, meet the requirements of smart grid on reliable and economic operation and the needs of users for customization of power quality, various integrated coordinated control technologies for customizing power devices, as well as the corresponding standard platforms, and power quality expert system are the directions in future research.第33卷 第15期电 网 技 术 5Tab. 1 is the summary of applications of power electrics technologies in strong smart grid.表1 电力电子技术解决的问题Tab. 1 Problems solved by power electronic technologiesProblems in power systemSolutionsIntermittence and fluctuation of renewable energy generation STATCOM and SMES for integrated energy storageV oltage fluctuation with load change SSSC, SVC, TCSC, STATCOM,UPFC, CSRLow voltage after fault SSSC, SVC, STATCOM, TCPR, CSROverload of line or transformer SSSC, TCSC, TCPAR, UPFC Power flow regulation SSSC, UPFC, TCSC, TCPARLoad distribution after faultTCPAR, UPFC, SSSC, TCSC, STATCOM, CSCLimit exceeding of fault currentSCCL, UPFC, SSSC, TCSCSubsynchronous resonance ofturbine or generator shaftSSSC, TCSCTransient stability of loose mesh networks SSSC, TCSC, UPFC, TCPAR, HVDCPower oscillation of remote generator and radial line SVC, STATCOM, SSSC, TCSC, UPFC, TCPAR V oltage control of loose meshnetwork after the accidentSSSC, SVC, STATCOM, UPFCV oltage stability of regioninterconnected, close or loose meshnetworkSVC, STATCOM, UPFC, TCPR,MCSR, CCSRPower quality controlDSTATCOM, DVR, APF, UPQC,PETAccess of distributed power supplies PET, integrated energy storageand converter for connection ofdistributed generation4 Engineering applications of keytechnologies4.1 Engineering application of shunt compensationRelying on the super capacity SVC project fromLianzhong Stainless Steel Corporation, C-EPRIScience & Technology Co., Ltd completed theresearch of key technologies of the SVC equipment,which is so far the first industrial SVC with thelargest installed capacity made in China, andsuccessfully put the SVC into operation [4]. Fig. 2shows the SVC device applied in the project of Lianzhong Stainless Steel Corporation. The device effectively treated the power quality problems (which include reactive power impact, voltage fluctuation and flicker, and injection of a great deal of negative sequence and harmonic into the grid) caused by fluctuating load from devices such as UHV electric arc furnace. Therefore the device ensures the safe operation of the project, and yields a huge economic benefit of 20 million Yuan each yearto Lianzhong Stainless Steel Corporation.Tab. 2 lists the main parameters of SVC deviceapplied for Lianzhong Stainless Steel Corporation.图2 应用于联众(广州)不锈钢有限公司的SVCFig. 2 SVC applied in project of Lianzhong Stainless Steel Corporation表2 SVC 的主要技术参数Tab. 2 Main parameters of SVC deviceMain parameters Value Rated capacity/Mvar 180 Rated voltage/kV 35 Rated frequency/Hz 50 Rated current/A 2969 Trigger mode— Range of working voltage/pu 0.9~1.1 Installed capacity of filter/Mvar 300 Capacity of fundamental wave/Mvar1804.2 Engineering application of series compensationYi-Feng 500 kV TCSC project, which is shownin Fig. 3, is a national level science demonstrationproject approved by National Development andReform Commission [4]. The project, which was builtby C-EPRI Science & Technology Co., Ltd, improved the transmission power limit of Yi-Feng 500 kV AC lines from 1.46 million kW to 2.5 million kW. TCSC device used in this project is the first 500 kV TCSC device which is designed, developed, constructed and debugged independently by China. The successful operation of this device showed that China hadmastered the full set of technologies for large capacity图3 伊冯500 kV TCSC 项目 Fig. 3 Yi-Feng 500 kV TCSC project6荆平等：电力电子技术在智能电网中的应用V ol. 33 No. 15TCSC adapting to alpine region, and realized the industrial application of HV TCSC.Tab. 3 lists the main parameters of Yi-Feng 500 kV TCSC project.表3 伊冯TCSC 工程的主要参数Tab. 3 Main parameters of Yi-Feng TCSC projectMain parametersValueRated voltage/kV 500 Rated frequency/Hz 50 Rated current/A 2330Rated capacity/Mvar 544.3(FSC), 326.6(TCSC) Protection modeMOV+GAP+Thyristor MOV Rated capacity/(MJ/three phase)137.39 (FSC), 114.48(TCSC)Compensation degree 30 %(FSC)+15 %(TCSC) Over-voltage protection levelof capacitor set/pu2.25(FSC), 2.35(TCSC)4.3 Engineering application of custom power technologyThe power load in a large aerospace company in Beijing was sensitive to transient power quality problems such as voltage sag and short-term power interruption. Production in this company was impacted for several times by this kind of problems. According to actual conditions of this company, CEPRI Science & Technology Co., Ltd. applied custom power technology to treat power quality problems by installing two sets of custom power devices (SSTS and DVR). After the successful operation, the devices effectively eliminated the specific power quality problems [4]. Fig. 4 shows the 10 kV DVR device installed in that company.Tab. 4 lists the main parameters of 10 kV DVRdevice installed in the large aerospace company.图4 北京某大型航天企业中的10 kV DVR Fig. 4 10 kV DVR device in the largeaerospace company in Beijing 表4 10 kV DVR 设备的主要参数Tab. 4 Main parameters of the 10kV DVR deviceMain parameters value Rated voltage/kV 10 Rated current/A 300 Rated frequency/Hz50 Compensated voltage range/pu 0.1~0.5 Compensated response time/ms<5 Compensated time/s15 ConclusionThe advanced power electronic technologies presented in this paper are the important supporting technologies for strong smart grid. They are represented by flexible transmission technology, custom power technology and energy storage technology. During the construction of smart grid in the near future, power electronic technology will help to achieve inter-regional economic dispatching and to optimize resources allocation. And it can be used to gain the capabilities of anti-disturbance and rapid self-healing. Using power electronic technology, the reliable access of both supplies and power users can be guaranteed, and diversified service requirements of power generation users and power users can be met.References[1] Tom Jones ．The Smart Grid as a Virtual Power Plant[EB/OL]//OSUIntegrated Systems Engineering Series ，2009．/ Seminars/Virtual%20Power%20Plant%20OSU.ppt ．[2] 郑健超．未来电力技术的发展趋势浅析[EB/OL]．中国电力科学研究院，2006．/forum/opinion/99021_07.HTM Zheng Jianchao ．On the Development Trend of Power Technologies in future[EB/OL]．CEPRI ，2006．/forum/opinion/ 99021_07.HTM (in Chinese)．[3] W.Breuer ，D.Povh ，D.Retzmann ，et al ．Prospects of Smart GridTechnologies for a Sustainable and Secure Power Supply [EB/ OL]//World Energy Congress ．Rome ，2007．/ documents/p001546.pdf ．[4] 国家电网公司建设运行部，中国电力科学研究院．灵活交流输电技术在国家骨干网中的工程应用[M]．北京：中国电力出版社，2008：152-188．Department of Construction and Operation in State Grid Corporation of China ，China Electric Power Research Institute ．The Applications of Flexible AC Transmission Technology in National Backbone Transmission Networks[M]．Beijing ：China Electric Power Press ，2008：152-188 (in Chinese)．Received date ：2009-05-21． Biographies ：Jing Ping (1965—), male, senior engineer, is mainly engaged in research of power system control and protection technologies, and development and application of power electronic devices.Guo Jianbo (1960—), male, is a professor level senior engineer and PhD supervisor. He has long beenengaged in research on power system planning,Jing Pingoperation and power grid reliability.Zhao Bo (1977—), male, is a Ph.D. and engineer. He is primarily engaged in research and development of power system and power electronic technologies.Zhou Fei (1981—), male, is a master and engineer. He is primarily engaged in research and development of power system and power electronic technologies.Wang Zhibing (1981—), male, Ph.D. is primarily engaged in research and development of power system and power electronic technologies.（实习编辑董佳馨）。