智能电网关键技术的分析与探讨的毕业设计论文

电力毕业设计(论文) 题目

智能电网关键技术的分析与探讨

智能电网关键技术的分析与探讨

摘要

21世纪电力供应面临环境压力、购电能力、安全可靠和高效利用等重大挑战。以美国和欧盟为代表的不同国家和组织不约而地提出要建设灵活、清洁、安全、经济、友好的智能电网，将智能电网视为未来电网的发展方向。智能电网已成为近年来国内外有关未来电网发展趋势的热门话题。

文章简要分析了智能电网研究背景情况，智能电网的概念、特性以及国内外发展现状。重点研究了智能数字变电站、分布式能源和可再生能源接入相关技术。其中数字变电站部分首先分析研究了数字变电站的系统结构，主要研究了数字电流互感器的原理和特性及发展的新方向，然后设计了以罗氏线圈为电流传感头的数字采集系统。分布式能源部分首先研究了分布式发电技术，包括太阳能发电技术和风能发电技术。然后分析了几种储能技术，重点分析了超导储能和超级电容器储能技术的原理，接着分析了并网的问题和解决方法，最后对智能电网的发展前景进行了展望，并总结了其技术优势和存在的问题。

关键词：智能电网数字变电站分布式能源可再生能源微网

THE ANALYSIS AND DISCUSSION OF

SMART GRID’S KEY TECHNOLOGY

Abstract

In the 21th century electricity supply is facing with great challenges such as environmental pressures, the capacity of electricity purchase ,safety ,reliability and efficient use.Different countries and organizations such as US and UE put forward to built a flexible clean safe economical power grid and make smart grid the future power grid’s direction. Smart grid has become a hot topic of the development trend of power grid at home and abroad .

The paper briefly analyze the research background of smart grid its concept features and current development status. It focuses on the intelligent digital substation technology and the link technology distributed energy and renewable energy .The first part analyze and research the digital substation system’s architecture .It mainly research digital current transformer’s principle features and the new development direction .Then it designs a digital acquisition system which make Rogowiski circle as the current sending head. The second part studies distributed generation technology including soar power generation and wind power generation technology. Then it analyze several energy storage technologies focusing on the analysis of the super conducting energy storage and super capacitor energy storage principles . Then it discusses the problem and solution of linking to the power grid. Finally it draws the development of smart grid’ prospect and summarizes its technical advantages and problems.

Key words: smart grid; digital substation; distributed energy resource; renewable energy resource; micro-network

目录

摘要.................................................................................................................................................. I Abstract .......................................................................................................................................... II 1绪论. (1)

1.1 课题背景 (1)

1.2 智能电网的概念及特性 (1)

1.3 智能电网的发展现状 (2)

1.3 1 国外研究现状 (2)

1.3.2 国内研究进展 (3)

2 数字变电站技术 (4)

2.1 数字变电站概述 (4)

2.2 IEC61850简介 (4)

2.3 数字变电站的系统结构 (5)

2.3.1 数字化的一次设备 (5)

2.3.2网络化的二次设备 (10)

2.4 数字变电站的信息采集 (11)

2.4.1 总体设计 (12)

2.4.2 系统硬件设计 (12)

3 分布式能源的接入 (15)

3.1 分布式能源的系统集成 (15)

3.1.1 分布式发电 (15)

3.1.2 储能技术 (16)

3.2 可再生能源和分布式能源并网 (18)

3.2.1 并网定义和并网意义 (18)

3.2.2 并网带来的问题 (19)

3.3 微网 (19)

3.3.1 微网概述 (19)

3.3.2 微网的运行与控制 (21)

3.4 分布式能源的发展方向 (21)

4智能电网的发展前景 (23)

5 智能电网技术优劣势分析 (24)

结束语 (26)

参考文献 (27)

致谢 (28)