电力电子技术基础(英文) 蒋晓华Cha1Devices

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电力电子技术双语课件第5-8章

5.2.1 A current-reversible chopper
5.2.2 Bridge chopper (H-bridge DC/DC converter)
5.2.3 Multi-phase multi-channel DC/DC converters
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Power
5.2.1 A current reversible chopper
V1
E
VD2
L
V2
VD1
uo
R io M EM
Power
Can be considered as a combination of a Buck and a Boost
Can realize two-quadrant ( I & II) operation of DC motor: forward motoring, forward braking
Single-ended converters • Forward converter • Flyback converter
Double-ended converters • Half bridge • Push-pull • Full bridge
Power
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5.3.1 Forward converter
5.3.2 Flyback converter
Power
S ton
toff
O
t
N1
N2 VD +
uS
Ui + W1
W2
Uo Ui
t
S
O iS
t
U o N 2 ton
iVOD
Realization using power MOSFET and diode

电力电子技术

❖智能功率模块（Intelligent Power Module－IPM）则专指IGBT及其辅助器件与其保护和驱动电路的单片集成，也称智能IGBT（Intelligent IGBT）。
1.2 电力电子技术的发展史
❖高压集成电路（High Voltage Integrated Circuit－HVIC）：一般指横向高压器件与逻辑
1.2 电力电子技术的发展史
❖各种整流电路、逆变电路、周波变流电路的理论已经发展成熟并广为应用。在晶闸管出现以后的相当一段时期内，所使用的电路形式仍然是这些形式
❖交流电变为直流电的方法除水银整流器外，还有发展更早的电动机—直流发电机组，即变流机组。和旋转变流机组相对应，静止变流器的称呼从水银整流器开始并沿用至今
电力电子技术与控制理论的关系
1) 控制理论广泛用于电力电子技术，使电力电子装置和系统的性能满足各种需求
2) 电力电子技术可看成“弱电控制强电”的技术，是“弱电和强电的接口”，控制理论是实现该接口的强有力纽带
3) 控制理论和自动化技术密不可分，而电力电子装置是自动化技术的基础元件和重要支撑技术
1.2 电力电子技术的发展史
1.2 电力电子技术的发展史
❖功率模块（Power Module）：为了使电力电子装置的结构紧凑、体积减小，常常把若干个电力电子器件及必要的辅助元件做成模块的形式，这给应用带来了很大的方便。
❖功率集成电路（Power Integrated Circuit－PIC）：把驱动、控制、保护电路和功率器件集成在一起，构成功率集成电路（PIC）。目前其功率都还较小，但代表了电力电子技术发展的一个重要方向。
Engineering）中。
1) 电力电子装置广泛用于高压直流输电（High－Voltage DC Transmission）、静止无功补偿(Static VAR Compensate)、电力机车牵引（Electrical Power Motorcycle Driving）、交直流电力传动(AC/DC Power Driving）、电解（Electrolyze）、励磁（Excitation）、电加热（Electric Power Heating）、高性能交直流电源（High－Performance AC/DC Power Supply) 等电力系统 (Electric Power System)和电气工程（Electrical Engineering）。

电力电子技术1-4

进行电力变换的技术称为变流技术
1.3 与相关学科的关系
电力电子学 (Power Electronics)名称60年代出现；
1974年，美国的W. Newell用图1的倒三角形对电力电子学进行了描述，被全世界普遍接受；
电子学
电力学
电力电子学
连续、离散
控制理论
图1 描述电力电子学的倒三角形
•电力电子装置是自动化技术的基础元件和重
要支撑技术
1.4 地位和未来
电力电子技术和运动控制一起，和计算机技术共同成
为未来科学技术的两大支柱
计算机
人脑
电力电子技术
消化系统和循环系统
电力电子＋运动控制
肌肉和四肢
电力电子技术是电能变换技术,是把粗电变为精电的技术
能源是人类社会的永恒话题，电能是最优质的能源，
• 重点：各种电力电子器件原理、性能上的不同点，各自应用的场合。
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本章内容
2.1 电力电子器件的发展、分类与应用
2.2 电力（功率）二极管 2.3 晶闸管（SCR） 2.4 可关断晶闸管（GTO） 2.6 电力场效应晶体管（电力 MOSFET） 2.7 绝缘栅双极晶体管（IGBT） 2.8 其它新型场控器件
双极型器件：有两种载流子参与导电，如二极管、晶闸管、GTO、GTR、IGCT、SITH等。
复合型器件：由MOSFET与晶体管、晶闸管复合而成，如IGBT、IPM、MCT等。
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按门极驱动信号的种类（电流、电压）分类：
电流控制型器件如晶闸管、GTO、GTR、 IGCT、SITH等
体制成，故也称电力半导体器件。

电力电子技术基础绪论

绪论 1.3 电力电子技术的发展史
史前期 • 1904年电子管问世，开启
了电子技术用于电力领域的先河；
• 20世纪30～50年代，是水银整流器时代；
• 1947年晶体管诞生，引发了电子学的第一次革命，产生了半导体固态电子学这一新兴学科。
发展史 • 1957年晶闸管问世，引发电子学的第二
电力电子技术
绪论
1 电力电子技术定义
1
2 电力变换的基本原理 3 电力电子技术的发展史 4 电力电子技术的应用 5 本课程内容介绍
绪论 1.1 电力电子技术的定义
电力电子技术（Power Electronics），出现于20世纪60年代，又名电力电子学或功率电子学。
1974年，美国学者W.E.Newell认为电力电子学是一门交叉于电气工程三大学科领域——电力学、电子学和控制理论之间的边缘学科。
使用电力时固定频率的交流电未必总是最佳选择：如变频空调，需要改变频率；如各种直流电源，将交流电变成直流电；
所以，需要电能形式之间的变换。
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绪论 1.1电力电子技术的定义
电力电子技术是以电力为处理对象的电子技术，是使用电力电子器件对电能进行变换和控制的技术。
电力
电力变换
交流
直流
交流变直流（整流）直流变交流（逆流）直流变直流交流变交流
电力电子技术基础
哈尔滨理工大学
电力电子技术
主要内容
1 绪论 1 2 电力电子器件 3 直流斩波器 4 逆变器 5 整流器 6 交交变换器 7 软开关
电力电子技术
绪论
➢ 1. 什么是电力电子技术 ➢ 2. 电力变换的基本原理 ➢ 3. 电力电子技术的发展历史 ➢ 4. 电力电子技术的应用 ➢ 5. 本课程内容介绍

电力电子技术第一章

5. 最高工作结温TJM
Hale Waihona Puke 6. 浪涌电流IFSM指电力二极管所能承受最大的连续一个或几个工频周期的过电流。
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四.
电力二极管的主要类型
按照正向压降、反向耐压、反向漏电流等性能，特别是反向恢复特性的不同介绍。
1. 普通二极管（General Purpose Diode）
又称整流二极管（Rectifier Diode）多用于开关频率不高（1kHz以下）的整流电路其反向恢复时间较长5μs 正向电流定额和反向电压定额可以达到很高
PN结的反向击穿（两种形式)
雪崩击穿
齐纳击穿均可能导致热击穿
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二.
1. 静态特性
电力二极管的基本特性
正向导通
主要指其伏安特性
门槛电压UTO，正向电流IF开始明显增加所对应的电压。
与IF对应的
电力二极管
反向击穿反向截止状态
两端的电压即为其正向电压降UF 。
承受反向电压时，只有微小而数值恒定的反向漏电流。图1-4 电力二极管的伏安特性
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一. 电力电子器件的概念和特征
电力电子器件的损耗
通态损耗主要损耗断态损耗
开通损耗
开关损耗
关断损耗
通态损耗是器件功率损耗的主要成因。器件开关频率较高时，开关损耗可能成为器件功率损耗的主要因素。
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二. 应用电力电子器件系统组成
电力电子系统：由控制电路、驱动电路、保护电路和以电力电子器件为核心的主电路组成。在主电路
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四.
电力二极管的主要类型
简称快速二极管快恢复外延二极管
2. 快恢复二极管（Fast Recovery Diode——FRD）

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。

电力电子技术双语课件第1-2章

Power
Two types of electric power DC(Direct Current)
AC (Alternating Current)
Changeable properties in conversion
Magnitude
Frequency, magnitude, number of phases
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Relation with multiple disciplines
Power
Circuit theory
Electric machines
Systems & Control theory
Signal processing
Power electronics
Simulation & computing
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Power
Industrial applications
Motor drives Electrolysis Electroplating Induction heating Welding Arc furnaces and ovens Lighting
15
Power
Transportation applications
Reference
(commanding)
Control is invariably required.
Power converter along with its controller including the
corresponding measurement and interface circuits, is
Power electronics and information electronics make two poles of modern technology and human society—— information electronics is the brain,and power electronics is the muscle.

电力电子技术基础课件(大学常用)讲解

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1.2 电力电子技术的发展史
◆晶闸管时代 ☞晶闸管由于其优越的电气性能和控制性能，使之很快就取代了水银整流器和旋转变流机组，并且其应用范围也迅速扩大。电力电子技术的概念和基础就是由于晶闸管及晶闸管变流技术的发展而确立的。 ☞晶闸管是通过对门极的控制能够使其导通而不能使其关断的器件，属于半控型器件。对晶闸管电路的控制方式主要是相位控制方式，简称相控方式。晶闸管的关断通常依靠电网电压等外部条件来实现。这就使得晶闸管的应用受到了很大的局限。
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1.2 电力电子技术的发展史
■电力电子技术的发展史
图1-3 电力电子技术的发展史
◆一般认为，电力电子技术的诞生是以1957年美国通用电气公司研制出第一个晶闸管为标志的。
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1.2 电力电子技术的发展史
◆晶闸管出现前的时期可称为电力电子技术的史前期或黎明期。 ☞1904年出现了电子管，它能在真空中对电子流进行控制，并应用于通信和无线电，从而开启了电子技术用于电力领域的先河。 ☞20世纪30年代到50年代，水银整流器广泛用于电化学工业、电气铁道直流变电所以及轧钢用直流电动机的传动，甚至用于直流输电。这一时期，各种整流电路、逆变电路、周波变流电路的理论已经发展成熟并广为应用。在这一时期，也应用直流发电机组来变流。 ☞1947年美国著名的贝尔实验室发明了晶体管，引发了电子技术的一场革命。
图1-4 AB变频器
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1.3 电力电子技术的应用
◆交通运输 ☞电气化铁道中广泛采用电力电子技术。电气机车中的直流机车中采用整流装置，交流机车采用变频装置。直流斩波器也广泛用于铁道车辆。在未来的磁悬浮列车中，电力电子技术更是一项关键技术。除牵引电机传动外，车辆中的各种辅助电源也都离不开电力电子技术。 ☞电动汽车的电机依靠电力电子装置进行电力变换和驱动控制，其蓄电池的充电也离不开电力电子装置。一台高级汽车中需要许多控制电机，它们也要靠变频器和斩波器驱动并控制。 ☞飞机、船舶和电梯都离不开电力电子技术。

电力电子技术ppt课件

05
交流-交流变换器
交流调压器
工作原理
通过控制晶闸管的导通角来调节输出电压的大小。
优点
结构简单，控制方便，效率高。
缺点
输出电压波形畸变较大，谐波含量高。
应用领域
灯光控制、电机软启动等。
交流调功器
01
工作原理
通过控制晶闸管的通断时间来调节负载功率的大小。
缺点
晶闸管关断时会产生较大的电压尖峰，需要采取保护措施。
压的降压变换。
电路结构
降压型变换器主要由输入滤波电路、开关管、输出滤波电路和控制电路组成。
控制方式
常见的控制方式有脉冲宽度调制（PWM）和脉冲频率调制（ PFM）两种。
应用领域
广泛应用于电子设备中，如手机、笔记本电脑等便携式设备
的电源管理。
升压型变换器
工作原理
通过控制开关管的导通和关断时间，实现输入电压到输出电压的升压变换。
控制方式
可采用PWM、PFM或滞环控制等非线性控制方法，实现输出电压的稳定调节。
电路结构
升降压型变换器主要由输入滤波电路、开关管、储能元件（如电感或电容）和输出滤波电路组成，与升压型变换器类似，但增加了降压功能。
应用领域
应用于需要宽范围电压输出的场合，如太阳能逆变器、不间断电源（UPS）等。
03
02
优点
能够实现快速、无级调节负载功率。
应用领域
电加热、电焊机等。
04
周波变换器
工作原理
将输入交流电的周波进行分割和重组，从而得到所需频率和电压的交流电。
缺点
需要使用大量的电力电子器件，成本高，效率低。
优点
能够实现频率和电压的灵活变换，输出波形质量好。

电力电子技术基础与应用指南

电力电子技术基础与应用指南目录1.引言2.电力电子技术的概念与重要性o 2.1 电力电子技术定义o 2.2 电力电子技术的发展历程o 2.3 电力电子技术的重要性1.电力电子元器件o 3.1 二极管o 3.2 晶闸管o 3.3 绝缘栅双极型晶体管（IGBT）o 3.4 场效应晶体管（MOSFET）1.电力电子电路o 4.1 整流电路o 4.2 逆变电路o 4.3 斩波电路o 4.4 变频电路1.电力电子控制技术o 5.1 PWM控制技术o 5.2 PID控制技术o 5.3 矢量控制技术o 5.4 模糊控制技术1.电力电子技术在能源领域的应用o 6.1 可再生能源发电o 6.2 电动汽车充电o 6.3 智能电网o 6.4 储能系统1.电力电子技术在工业中的应用o7.1 工业自动化o7.2 电机驱动o7.3 电焊设备o7.4 变频器1.电力电子技术在消费电子中的应用o8.1 电源适配器o8.2 不间断电源（UPS）o8.3 LED照明o8.4 家用电器1.电力电子技术的未来发展趋势o9.1 高效能器件o9.2 模块化设计o9.3 数字化控制o9.4 绿色环保1.结论1. 引言电力电子技术是现代电气工程的重要组成部分，它通过对电能的转换、控制和传输，实现各种电气设备的高效运行和智能化控制。

本指南旨在为读者提供全面的电力电子技术基础知识和实际应用，帮助他们更好地理解和应用电力电子技术。

2. 电力电子技术的概念与重要性2.1 电力电子技术定义电力电子技术是指利用电子元器件对电能进行变换和控制的技术，包括整流、逆变、斩波、变频等各种电力电子变换过程。

2.2 电力电子技术的发展历程电力电子技术的发展经历了从电子管到晶闸管，再到现代的IGBT和MOSFET等高效能器件的演进，不断推动电力电子技术的进步。

2.3 电力电子技术的重要性电力电子技术在能源转换、工业控制、消费电子等领域具有广泛的应用，是实现现代化和智能化的关键技术之一。

电力电子技术英文版 Chapter02

6
Power losses on power semiconductor devices
Power Electronics
v
t
i
t
p
O n - s ta te ( c o n d u c tio n s ta te ) tu r n in g o ff O ff- s ta te ( b lo c k in g s ta te ) tu rn in g -o n
9
A classification of power electronic devices
Power Electronics
Uncontrolled device: diode (Uncontrollable device)
has only two terminals and can not be controlled by control signal. The on and off states of the device are determined by the power circuit.
Need to be controlled by information electronic circuits. Very often, drive circuits are necessary to interface between information circuits and power circuits. Dissipated power loss usually larger than information electronic devices — special packaging and heat sink are necessary.
8

现代电力电子技术课件Basic Power Electronic Devices

big，withstand voltage high；
★ the channel between D-S is
short ,the U、R、C are all small；
★ the parallel junction resistance
RDS is small，it can be mΩ。
☆ no conductance modulating effect,
UCES = UBE+UD2+UD3 — UD1
= UBE + UD2
（general UCES = 0.7~3V)
make GTR reverse biased or zero biased反偏或零偏—
quasi-saturated
☆ D1 must be fast recovery diode，D2、D3 can be general diode
IB = (1.5 ~ 2)ICM / hFES
I BP = 3I B
3—excessive driven coefficient
Increasing IBP- can accelerate
turn-off，but the current
change rate will increase larger。
Normally choose：
I BP I BP
IBP+
< 0.5s
IB
2s
5s
IBP-
UCES IB=0.5A
1V
IB=1A
IC
30A
Basic driven circuit
E1
uB
E2
C1 R2 T1
R1 T2

《电力电子技术》讲义资料

VT的移相范围为180
➢ 这种通过控制触发脉冲的相位来控制直流输出电压大小的方式称为相位控制方式，简称相控方式。
第30页
电力电子技术
2）带阻感负载的工作情况
➢ 阻感负载的特点：
电感对电流变化有抗拒作用，使得流过电感的电流不能发生突变
➢ 电力电子电路的一种基本分析方法
⑴通过器件的理想化，将电路简
电力电子技术
➢晶闸管
1957年美国通用电气公司研制出第一个晶闸管，这标志着电力电子技术的诞生。
晶闸管因电气性能和控制性能优越，很快取代了水银整流器和旋转变流机组，且其应用范围也迅速扩大。工业的迅速发展也有力地推动了晶闸管的进步。电力电子技术的概念和基础就是由于晶闸管及晶闸管变流技术的发展而确立的。
同处理信息的电子器件相比，电力电子器件的一般特征
第14页
电力电子技术
➢同处理信息的电子器件相比，电力电子器件的一般特征
1. 能处理电功率的大小，即承受电压和电流的能力。
2. 电力电子器件一般都工作在开关状态。 3. 实用中，电力电子器件往往需要由信息电子
电路来控制。 4. 为保证不致于因损耗散发的热量导致器件温
★
第16页
电力电子技术
电力电子器件
➢ 按照器件内部电子和空穴两种载流子参与导电的情况分为三类： ➢单极型器件——由一种载流子参与导电的器件。（电力MOSFET和SIT） ➢双极型器件——由电子和空穴两种载流子参与导电的器件。（电力二极管、晶闸管、 GTO、GTR和SITH ） ➢复合型器件——由单极型器件和双极型器件集成混合而成的器件。（ IGBT和MCT ）
第17页
电力电子技术
电力电子器件的分类
1.不可控器件——电力二极管

Chp1_Power electronic devices电力电子技术

t t
Ideal device Switching dynamic On-state Power loss di/dt & dv/dt=∞ Von=0 pSW=pon=0
Real device di/dt=C1 dv/dt=C2 Von>0 pSW>0 pon>0
Chapter 1: Power electronic devices
23
Full-controlled device
Chapter 1: Power electronic devices
GTO (Gate turn-off thyristor)
GTO
Invented in 1970s Features Advantages: self turn-off capability, no forced commutation circuit, high voltage and high power Shortcoming: current controlled, large on-state voltage, high snubber loss Applications: electric traction, drives
Chapter 1: Power electronic devices 25
GTO (principle)
A
IA PNP G IG IC1 IC2=IB1
IG
IB2 NPN
IK K
IA
Positive feedback process
Reason of turn-off: lightly saturation βGTO=IC/IB<<βSCR IG<0 IB2 IC2 IK

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。

电力电子技术外文翻译

外文翻译题目：电力电子技术二A部分晶闸管在晶闸管的工作状态，电流从阳极流向阴极。

在其关闭状态，晶闸管可以阻止正向导电，使其不能运行。

可触发晶闸管能使导通状态的正向电流在短时间内使设备处于阻断状态。

使正向电压下降到只有导通状态的几伏（通常为1至3伏电压依赖于阻断电压的速度）。

一旦设备开始进行，闸极电流将被隔离。

晶闸管不可能被闸关闭，但是可以作为一个二极管。

在电路的中，只有当电流处于消极状态，才能使晶闸管处于关闭状态，且电流降为零。

在设备运行的时间内，允许闸在运行的控制状态直到器件在可控时间再次进入正向阻断状态。

在逆向偏置电压低于反向击穿电压时，晶闸管有微乎其微的漏电流。

通常晶闸管的正向额定电压和反向阻断电压是相同的。

晶闸管额定电流是在最大范围指定RMS和它是有能力进行平均电流。

同样的对于二极管，晶闸管在分析变流器的结构中可以作为理想的设备。

在一个阻性负载电路中的应用中，可以控制运行中的电流瞬间传至源电压的正半周期。

当晶闸管尝试逆转源电压变为负值时，其理想化二极管电流立刻变成零。

然而，按照数据表中指定的晶闸管，其反向电流为零。

在设备不运行的时间中，电流为零，重要的参数变也为零，这是转弯时间区间从零交叉电流电压的参考。

晶闸管必须保持在反向电压，只有在这个时间，设备才有能力阻止它不是处于正向电压导通状态。

如果一个正向电压应用于晶闸管的这段时间已过，设备可能因为过早地启动并有可能导致设备和电路损害。

数据表指定晶闸管通过的反向电压在这段期间和超出这段时间外的一个指定的电压上升率。

这段期间有时被称为晶闸管整流电路的周期。

根据使用要求，各种类型的晶闸管是可得到的。

在除了电压和电流的额定率，转弯时间，和前方的电压降以及其他必须考虑的特性包括电流导通的上升率和在关闭状态的下降率。

1。

控制晶闸管阶段。

有时称为晶闸管转换器，这些都是用来要是整顿阶段，如为直流和交流电机驱动器和高压直流输电线路应用的电压和电流的驱动。

主要设备要求是在大电压、电流导通状态或低通态压降中。

《电力电子技术基础》教学大纲

《电⼒电⼦技术基础》教学⼤纲《电⼒电⼦技术基础》教学⼤纲（学分3，学时48）⼀、课程基本信息编码：Code:课程名称：电⼒电⼦技术基础Course Title: Basics of Power Electronics课程类别：学类核⼼Course category:Professional Education学分：3Credit(s): 3学时: 48 School hours:48开课学期: 秋季Semester: Autumn先修课程: ⾼等数学，⼤学物理，积分变换Prerequisites: Advanced Mathematics，General Physics，Integral Transformations 开课单位：电⽓与信息⼯程学院Offering College/School: College of Electrical and Information Engineering⼆、课程描述中⽂: 电⼒电⼦技术是利⽤有关器件对电能进⾏控制和转化的技术,是应⽤于电⼒领域的电⼦技术。

它包括电⼒电⼦器件、变流电路和控制电路三个部分,是电⼒技术、电⼦技术和现代控制技术三者交叉形成的学科。

“电⼒电⼦技术基础”课程是电⽓⼯程及其⾃动化专业、⾃动化专业本科⽣必修的学科基础课程，本课程的⽬的和任务是使学⽣熟悉各种电⼒电⼦器件的特性和使⽤⽅法；掌握各种电⼒电⼦电路的结构、⼯作原理、控制⽅法、设计计算⽅法及实验技能；熟悉各种电⼒电⼦装置的应⽤范围及技术经济指标。

同时，为相关的后续专业课程打好基础。

课程理论严密，逻辑性强，在教学内容⽅⾯着重基本知识、基本理论和基本设计⽅法的讲解；在培养实践能⼒⽅⾯,着重提⾼学习解决实际问题的能⼒和基本技的训练与提升。

英⽂：Power electronic is a technology which uses some devices to control and transfer power. It is a branch of electronic technology which is applied in the field of power. It includes the power electronic devices, converter circuit and control circuit. Power electronics is an interdiscipline of electric power technology, electronic technology, and modern control technology. Power electronics is an indispensable and professional core course for students of electrical engineering and its automation. This course aims to enable students to master the operational characteristics and applied methods of various commonly used power electronics device. To master structure, working principle, control method, design and calculation methods and experimental skills of basic power electronic circuit. To understand the application and technical - economic index of power electronic devices, so as to lay a foundation for their further work in power electronic technology. This course mainly covers power-electronic device, AC-DC converter, DC-AC converter, DC-DC converter, AC-AC converter, PWM control, soft switch technology, etc.三、课程的能⼒⽬标1 课程的能⼒⽬标通过本课程的教学，使学⽣具备下列能⼒：课程⽬标1.理解⼆极管、IGBT、SCR、GTO等基本开关器件及⼯作原理，运⽤基本电路理论，能将复杂电路系统的动态⾏为简化为不同的开关⼯作模态，分析不同模态下的⼯作特性，从⽽掌握和具备熟练分析晶闸管整流电路、直流斩波电路等能⼒；（对应毕业要求2.1）课程⽬标2. 能够熟练运⽤微分、积分、线性⽅程组求解、⾏列式计算、微分⽅程求解、复数运算、矩阵相乘等⾼等数学知识，建⽴和分析电⼒电⼦变换电路的不同开关模态及其⼯作特性，并与仿真相结合，分析模型和仿真的差异和局限性，并给出有效结论；（对应毕业要求2.4）课程⽬标3：通过本课程教学、电路设计和⼯程实验，学⽣能够熟练运⽤本专业相关的基础知识和基本理论，考虑电⼒电⼦变换器的结构设计，进⾏成本和体积的优化设计，实现变换器的⾼效经济运⾏，同时能够考虑环境与可持续发展的约束，降低变换器的噪声和电磁⼲扰；（对应毕业要求7.2）课程⽬标4.能够选择和使⽤现代设计⼯具，进⾏电⼒电⼦变换系统的单元和整体设计，以满⾜单元或系统设计要求，并在设计中能体现创新意识，能根据结果对⽅案进⾏分析和调整，完成单元级软硬件开发与调试（对应毕业要求4.1）课程⽬标5. 能够完成电⼒电⼦技术课程的实验项⽬，并对结果进⾏分析，实验过程中遵守实验安全制度（对应毕业要求4.2）课程⽬标6. 能够和团队进⾏问题分解和任务分配，并组织⼯程实践的开展（对应毕业要求9.4）课程⽬标7.能将⾃⼰的设计思路、设计⽅案和实现过程在课堂进⾏宣讲、与公众互动和讨论，有效表述⾃⼰的观点和意见（对应毕业要求10.2）课程⽬标8. 开展电⼒电⼦技术基础的双语教学实践，同时⿎励和督促学⽣追踪和学习国际上电⼒电⼦学动态，包括电⼒电⼦教学、变换拓扑及控制⽅法等，使学⽣具有⼀定的国际视野，能够在跨⽂化背景下进⾏沟通和交流（对应毕业要求10.3）2.课程⽬标和教学环节的对应关系：四、课程内容和课时分配五、教学环节1、理论教学1）采⽤启发式教学，引导学⽣独⽴思考，培养提出问题、分析问题和解决问题的能⼒，促进学⽣的⾃主学习。