MMC优化均压控制方法的研究

TM464; MMC因具有子模块可以级联,输出波形质量好等优势而广泛地应用于高压直流输电等场合.文章在最近电平逼近调制的基础上,对传统的电容电压排序法进行了改进,引入同一桥臂子模块间电压偏差参考量和子模块电容电压排序系数,避免了因排序算法而导致同一个子模块的IGBT频繁投切.通过MATLAB/Simulink搭建了11电平的MMC仿真模型,并给出了同一桥臂子模块间最大电压偏差量和IGBT开关损耗与子模块间电压偏差参考量和不同排序系数的关系曲线,将二者之间的矛盾关系转化成多目标优化模型,设计了一种含加权系数的最优控制算法,给出加权系数为0.8时的最优参数,在最优参数条件下进行了仿真验证,仿真结果...

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Published in电测与仪表 Vol. 57; no. 19; pp. 99 - 104
Main Authors 刘建华, 琚云鹏, 吕承阳, 郭锐, 崔鹏飞, 雷国锋
Format Journal Article
LanguageChinese
Published 中国矿业大学电气与动力工程学院,江苏徐州221008 10.10.2020
Subjects
MMC
多目标优化
加权系数法
优化电容电压排序法
IGBT开关损耗
Online AccessGet full text
ISSN1001-1390
DOI10.19753/j.issn1001-1390.2020.19.016

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Abstract TM464; MMC因具有子模块可以级联,输出波形质量好等优势而广泛地应用于高压直流输电等场合.文章在最近电平逼近调制的基础上,对传统的电容电压排序法进行了改进,引入同一桥臂子模块间电压偏差参考量和子模块电容电压排序系数,避免了因排序算法而导致同一个子模块的IGBT频繁投切.通过MATLAB/Simulink搭建了11电平的MMC仿真模型,并给出了同一桥臂子模块间最大电压偏差量和IGBT开关损耗与子模块间电压偏差参考量和不同排序系数的关系曲线,将二者之间的矛盾关系转化成多目标优化模型,设计了一种含加权系数的最优控制算法,给出加权系数为0.8时的最优参数,在最优参数条件下进行了仿真验证,仿真结果表明了该最优控制算法的有效性.
AbstractList TM464; MMC因具有子模块可以级联,输出波形质量好等优势而广泛地应用于高压直流输电等场合.文章在最近电平逼近调制的基础上,对传统的电容电压排序法进行了改进,引入同一桥臂子模块间电压偏差参考量和子模块电容电压排序系数,避免了因排序算法而导致同一个子模块的IGBT频繁投切.通过MATLAB/Simulink搭建了11电平的MMC仿真模型,并给出了同一桥臂子模块间最大电压偏差量和IGBT开关损耗与子模块间电压偏差参考量和不同排序系数的关系曲线,将二者之间的矛盾关系转化成多目标优化模型,设计了一种含加权系数的最优控制算法,给出加权系数为0.8时的最优参数,在最优参数条件下进行了仿真验证,仿真结果表明了该最优控制算法的有效性.
Author 吕承阳
郭锐
崔鹏飞
刘建华
雷国锋
琚云鹏
AuthorAffiliation 中国矿业大学电气与动力工程学院,江苏徐州221008
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Guo Rui
Lei Guofeng
Lv Chengyang
Liu Jianhua
Cui Pengfei
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多目标优化
加权系数法
优化电容电压排序法
IGBT开关损耗
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Title MMC优化均压控制方法的研究
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