Harmonic Analysis of SVG Output Voltage Considering IGBT Transient Characteristics

WANG Zhihao; ZHANG Xinyan; SHI Sisi; QIU Yanjiang; ZHAO Xiaoyue; ZHOU Dengyu

doi:10.14044/j.1674-1757.pcrpc.2019.05.009

您当前的位置：

首页 >

文章列表页 >

Harmonic Analysis of SVG Output Voltage Considering IGBT Transient Characteristics

更新时间：2024-09-14

- Harmonic Analysis of SVG Output Voltage Considering IGBT Transient Characteristics
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 5, Pages: 51-55(2019)
- 作者机构：
  
  新疆大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.05.009
  CLC： TM714.3
- Published：2019，
- 稿件说明：
移动端阅览
[1]王志浩,张新燕,时思思,邱衍江,赵晓悦,周登钰.计及IGBT暂态特性的SVG输出电压谐波分析[J].电力电容器与无功补偿,2019,40(05):51-55.

WANG ZHIHAO, ZHANG XINYAN, SHI SISI, et al. Harmonic Analysis of SVG Output Voltage Considering IGBT Transient Characteristics. [J]. Power capacitor & reactive power compensation, 2019, 40(5): 51-55.
[1]王志浩,张新燕,时思思,邱衍江,赵晓悦,周登钰.计及IGBT暂态特性的SVG输出电压谐波分析[J].电力电容器与无功补偿,2019,40(05):51-55. DOI： 10.14044/j.1674-1757.pcrpc.2019.05.009.

WANG ZHIHAO, ZHANG XINYAN, SHI SISI, et al. Harmonic Analysis of SVG Output Voltage Considering IGBT Transient Characteristics. [J]. Power capacitor & reactive power compensation, 2019, 40(5): 51-55. DOI： 10.14044/j.1674-1757.pcrpc.2019.05.009.

摘要

由IGBT构成的静止无功发生器（SVG）具有开关频率高、控制灵活等优点

但IGBT运行时暂态特性易受结温影响

引起输出电压畸变。针对上述问题

建立变流器IGBT结温电-热耦合计算模型及开关延迟时间与结温的数学关系

理论分析开关延迟时间对SVG输出电压谐波的影响;通过时域仿真法研究SVG在电网电压跌落时的结温变化规律

进而分析上述工况对SVG输出电压谐波的影响。仿真结果表明

随IGBT结温的升高

其开、关延迟时间均会提高;当IGBT温度较高时

其暂态开关特性的变化将导致输出电压波形的畸变

此时暂态开关特性不能忽略;当计及IGBT暂态特性时

SVG的输出电压将含有直流成分

总的谐波畸变率增加

高次谐波含量增加。

Abstract

The static var generator（SVG）consisted by IGBT has such advantages as high switching frequency and flexible controletc. However

the transient characteristic of IGBT is easily affected by its transient characteristic during operation of IGBT and the output voltage distortion is caused. In view of above problem

an electric-thermal coupled model about IGBT junction temperature and the mathematical relationship between switching delay time and junction temperature is established and the influence of switching delay time on the output voltage harmonics of SVG is analyzed. The rule of junction temperature variation of SVG in the voltage sag of grid is studied by the time domain simulation method and the influence of above situation on the output voltage harmonic of SVG is analyzed further. It is shown by the simulation result that with the rise of the junction temperature of IGBT

its opening and closing delay time will also be increased. In case of high IGBT temperature

the variation of its transient switching characteristic will lead to distortion of voltage waveform and

at this time

the transient switching characteristic cannot be neglected.In case of considering the transient characteristic of IGBT

the output voltage of SVG will contain DC component

the total harmonic distortion rate and high order harmonic contents will increase.

关键词

静止无功发生器（SVG）变流器IGBT结温开关延时谐波

Keywords

static var generator（SVG）converterIGBT junction temperatureswitching time delayharmonic

references

Views

128

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Case Analysis and Solution of Low Power Factor Caused by Distributed Photovoltaic Grid Connection

Influence of Temperature, Voltage, Harmonic and Inrush Transient Current on Power Capacitor Life Expectancy

Influence of Shunt Reactive Compensation Installation on the Harmonic in Electrified Network

New Design Technique of Reactive Power and Harmonic Automatic Compensation Equipment

Analysis of the Influence of Nonlinear Load on Low-voltage Capacitor

Related Author

SHAO Hongxing

SHEN Wen-qi

ZHU Hai-song

ZHONG Gui-sheng

ZENG Guo-hong

HAN Hao

HONG Zhen-xian

SHENG Xiao-wei

Related Institution

Qingdao Eastsoft Communication Technology Co, Ltd

Xi′an Power Capacitor Research Institute, Xi′an

Anhui Province Electric Co., Huaibei Power Supply Bureau

Beijing Jiaotong University

北京交通大学电气工程学院北京100044

⁰