辽宁工程技术大学学报（自然科学版）2023，Vol.42Issue(6)：715-721,7.DOI:10.11956/j.issn.1008-0562.2023.06.011
基于归并排序算法的MMC电容电压均衡控制策略
MMC capacitor voltage balance control strategy based on merge sort algorithm
摘要
Abstract
Aiming at the problems of repeated switching of sub-modules and large device loss in the traditional voltage balancing strategy of modular multilevel converter(MMC),a MMC capacitor voltage balancing control strategy based on merging sorting algorithm is proposed.The capacitor voltage of sub-module is sorted by merging sorting algorithm,and the optimal range of switching is set by using the average value and imbalance degree of capacitor voltage.Within the allowable threshold range of capacitor voltage fluctuation of sub-module,the unnecessary repeated switching of sub-module in the system is reduced,and the loss of device is reduced.The simulation model of MMC capacitor voltage balancing strategy is established to verify the effectiveness and feasibility of the strategy.关键词
模块化多电平换流器/电容电压均衡/归并排序/电容电压评价指标Key words
modular multilevel converter/merge sort/capacitor voltage balancing/capacitor voltage evaluation index分类
信息技术与安全科学引用本文复制引用
杨桢,焦迪,韩磊,武丹凤,李艳..基于归并排序算法的MMC电容电压均衡控制策略[J].辽宁工程技术大学学报（自然科学版）,2023,42(6):715-721,7.基金项目
辽宁省应用基础研究计划项目(2023JH2/101300138) （2023JH2/101300138）
辽宁省教育厅重点攻关项目(LJKZZ20220046 （）
JYTZD2023075) （）
