一种适用于模块化多电平换流器的新型环流控制器

YAN Fayou

您当前的位置：

首页 >

文章列表页 >

一种适用于模块化多电平换流器的新型环流控制器

更新时间：2025-08-13

- 一种适用于模块化多电平换流器的新型环流控制器
- Automation of Electric Power Systems Vol. 38, Issue 1, Pages: 104-108(2014)
- 作者机构：
  
  中国电力科学研究院,北京市,100192
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014
- 稿件说明：
移动端阅览
YAN Fayou. [J]. Automation of electric power systems, 2014, 38(1): 104-108.
DOI：

YAN Fayou. [J]. Automation of electric power systems, 2014, 38(1): 104-108. DOI：

摘要

模块化多电平换流器（MMC）桥臂环流中的谐波直接影响MMC的工作特性和损耗。文中推导了MMC交流侧电流、桥臂电流和环流之间的内在联系，指出MMC在交流电网对称和不对称情况下桥臂环流中都含有二倍频谐波。为了对MMC谐波环流进行有效抑制，提出了一种基于比例-积分-谐振（PIR）控制的MMC新型环流控制器，无需二倍频负序坐标变换和相间解耦。最后，在PSCAD/EMTDC中搭建了包含该PIR环流控制器的双站MMC仿真模型，并与旋转坐标系下的环流控制器在交流电网对称和不对称情况下进行了对比仿真分析，仿真结果验证了所提出的PIR环流控制器的有效性。

Abstract

The system losses and working performance of the modular multilevel converter（MMC）are directly affected by the harmonics in the circulating current.The inherent relation between the AC-side current，the leg current and the circulating current is first directly derived，which reveals that there always exists double-frequency harmonics whether under balanced or unbalanced grid conditions.Then，a novel circulating controller based on proportional-integral-resonant（PIR）control is proposed for effectively suppressing the harmonics in the circulating current，without the double-frequency negative-sequence transformation and the phase decoupling control.A MMC-HVDC simulation of a two-station model containing the PIR is created based on PSCAD/EMTDC.Simulation results have verified the availability of the control strategy when compared to the results from the circulating controller under double fundamental-line frequency negative sequence rotational frame.

关键词

Keywords

references

Views

3055

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

模块化多电平换流器桥臂电流直接控制方案

三相并网变流器并联系统中载波不一致的环流抑制方法

基于混合脉宽调制的并联并网变换器控制方法

Related Author

WANG Guangzhu

Zijian QIU

Xiangkun MENG

Jingang YANG

Xiahui ZHANG

Minxiao HAN

CAO Wenbin

JIANG Weidong

Related Institution

Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education，Shandong University

School of Electrical and Electronic Engineering, North China Electric Power University

Electric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd.

State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology)

School of Electrical Engineering & Automation, Hefei University of Technology

⁰