电气传动2026，Vol.56Issue(3)：34-42,9.DOI:10.19457/j.1001-2095.dqcd26400
基于子模块电压变化特性的排序均压优化策略
An MMC Sorting Balancing Control Method Based on SMs'Voltage Variation Characteristics
摘要
Abstract
For the half-bridge modular multilevel converter(MMC)bridge arm in a control cycle within the input and removal of the submodule of the respective capacitance voltage sequence before and after the relationship of the characteristics of the same,based on the last cycle of the submodule switching state and the submodule capacitance voltage sequencing,the optimize bubble sorting method was put forward to reduce the number of comparisons in the sorting process.At the same time,based on the change rule of the submodule capacitance voltage law,a new type of voltage equalization strategy was proposed,which reduced the submodule switching frequency by optimizing the selection of the cast-cut submodule.According to the sub-module capacitance voltage level,the sub-module was divided into three categories of high,medium and low voltage to carry out different cast-cutting processing,which could effectively reduce the non-essential sub-module additional switching action.It was verified that the optimized sequencing method and voltage equalization strategy can effectively reduce the time complexity of sequencing and the switching frequency of submodules.关键词
模块化多电平换流器/冒泡排序/均压策略/开关频率/子模块电容电压Key words
modular multilevel converter(MMC)/bubbling sort/equalization control method/switching frequency/SMs'capacitance voltage分类
信息技术与安全科学引用本文复制引用
金浩天,李海锋,马凯,谭令其,李佳..基于子模块电压变化特性的排序均压优化策略[J].电气传动,2026,56(3):34-42,9.基金项目
国家自然科学基金(52077082) （52077082）
