南方电网技术2024，Vol.18Issue(3)：111-118,8.DOI:10.13648/j.cnki.issn1674-0629.2024.03.012
基于排序算法优化的MMC功率模块降损策略
Loss Reduction Strategy of MMC Power Module Based on Ranking Algorithm Optimization
摘要
Abstract
Modular multilevel converter(MMC)contains many power devices and large bridge arm current,which leads to large VSC unit operation loss and directly affects the system economy.To solve this problem,this paper proposes a strategy to reduce the switching loss of power modules,which reduces the switching loss by reducing the switching times in the area with higt bridge arm current,and suppresses the voltage fluctuation of modules by increasing the switching times in the area with low bridge arm current.Finally,taking the VSC unit in Liubei Station of Kunliulong Project as an example,the effectiveness of the loss reduction strategy is verified through PSCAD simulation and RTDS test,which significantly reduces the switching loss of power modules,and the system efficiency is improved.关键词
模块化多电平变流器/功率损耗计算/开关损耗/排序算法Key words
modular multilevel converter/power loss evaluation/switching losses/ranking algorithm分类
信息技术与安全科学引用本文复制引用
刘汉军,张军,盛俊毅,汤明杰,郭妍妍..基于排序算法优化的MMC功率模块降损策略[J].南方电网技术,2024,18(3):111-118,8.基金项目
国家重点研发计划资助项目(2016YFB0901003). Supported by the National Key Research and Development Program of China(2016YFB0901003). （2016YFB0901003）
