面向微网群的多端口电流源变流器共模电压抑制仿真

WANG Hao

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面向微网群的多端口电流源变流器共模电压抑制仿真

更新时间：2025-08-13

- 面向微网群的多端口电流源变流器共模电压抑制仿真
- Automation of Electric Power Systems Vol. 41, Issue 18, Pages: 74-79(2017)
- 作者机构：
  
  智能电网教育部重点实验室(天津大学),天津市,300072
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2017
- 稿件说明：
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WANG Hao. [J]. Automation of electric power systems, 2017, 41(18): 74-79.
DOI：

WANG Hao. [J]. Automation of electric power systems, 2017, 41(18): 74-79. DOI：

摘要

研究了一种基于电流源的多端口变换器，并将其应用于微网群的互联。针对微网群系统共模电压较高，易造成电机绝缘损坏、电磁干扰、通信故障、保护误动作等问题，提出一种改进的综合空间矢量调制策略。首先，对零矢量的冗余开关状态进行优选，抑制零矢量作用产生的共模电压尖峰。然后，研究变流器不同矢量排序方案对系统共模电压的影响，提出一种优选的排序策略，进一步降低无序的矢量排列造成的共模电压尖峰。最后，在MATLAB/Simulink环境下搭建含多端口电流源的微网群仿真模型，并针对所提综合调制策略进行仿真分析，结果证明了该调制策略的可行性和对共模电压抑制的有效性。

Abstract

A current source converter(CSC)based multi-port converter system is researched and its application in microgrid cluster is presented. Aiming at problems of motor damage

electro-magnetic interference

communication failure and maloperation of the protection caused by large common-mode voltage(CMV)

this paper proposes an enhanced comprehensive space vector modulation strategy. Firstly

redundant switching statuses of zero vectors are properly selected to suppress corresponding CMV. Then

the effect of different sequences of vector on CMV is analyzed and an optimized sequence is presented to reduce the peak CMV induced by random sequences. Finally

a simulation model of multi-port CSC utilized in microgrid cluster is established in MATLAB/Simulink

and results verify the effectiveness of the proposed modulation strategy and CMV suppression.

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