摘要
针对SVPWM(空间矢量脉宽调制)技术难以应用到多电平MMC(模块化多电平换流器)控制领域的难题,提出了一种适用于任意电平MMC的SVPWM方法。该方法将MMC等效看作N个二极管钳位型三电平换流器的串联,并基于自动控制等效变换原理和载波移相技术,利用单个三电平SVPWM生成模块实现了任意电平MMC的SVPWM。最后,在仿真软件中构建了基于MMC拓扑结构的五电平SVG(静止无功发生器)模型,仿真结果表明该方法简单通用,可以实现任意电平MMC的SVPWM。
SVPWM(space vector pulse width modulation)is difficult to be applied to MMC(modular multilevel converter)control,the paper proposes an SVPWM applicable to arbitrary MMC.The control method regards MMC as N diode-clamped three-level converters in series,and based on equivalent transformation of automatic control principle and carrier phase shifting technology,it can achieve SVPWM of arbitrary MMCs using single three-level SVPWM generation module.Finally,the model of a five-level SVG(static var generator)based on MMC topology is established in the simulation software.The simulation results show that the method is simple and universal,and can achieve SVPWM of arbitrary MMCs.
作者
谭风雷
朱超
邓凯
TAN Fenglei;ZHU Chao;DENG Kai(State Grid Jiangsu Electric Power Co.,Ltd.Extra High Voltage Branch Company,Nanjing 211102,China)
出处
《浙江电力》
2022年第1期64-70,共7页
Zhejiang Electric Power
基金
国网江苏省电力有限公司创新工作室项目(2020016L05)。
