电气传动2025，Vol.55Issue(4)：9-17,9.DOI:10.19457/j.1001-2095.dqcd25839
面向变速抽蓄的M3C电容电压波动及环流特性建模分析
Modeling and Analysis of Capacitor Voltage Fluctuation and Circulating Currents Characteristics of M3C for Variable Speed Pumped Storage
摘要
Abstract
Aiming at the problem that the circulating currents analysis of modular multilevel matrix converter(M3C)is not deep enough and the frequency component of circulating currents is not clear,the coupling process of submodule capacitor voltage fluctuation,bridge voltage fluctuation and circulating currents in M3C was deeply analyzed,and the primary coupling model of M3C circulating currents and its four main frequency components were obtained.The analysis results provided a theoretical foundation for using PR controller to suppress the circulating currents of corresponding frequency components.The theoretical analysis and suppression of circulating currents were verified by experiments.The experimental results prove that the theoretical analysis of the frequency components of circulating currents is correct,and it is also proved that the PR controller designed according to the analysis results has better suppression effect on circulating currents than the P controller.关键词
变速抽水蓄能/模块化多电平矩阵变换器/电容电压波动/环流Key words
variable speed pumped storage/modular multilevel matrix converter(M3C)/capacitor voltage fluctuation/circulating currents分类
动力与电气工程引用本文复制引用
张明琦,叶宏,梁浩,赵博,王超,王奎..面向变速抽蓄的M3C电容电压波动及环流特性建模分析[J].电气传动,2025,55(4):9-17,9.基金项目
国家电网有限公司总部科技项目(4000-202343072A-1-1-ZN) （4000-202343072A-1-1-ZN）
