机械与电子2024，Vol.42Issue(1)：26-30,36,6.
一种低频储能型MMC子模块电容电压均衡控制策略
A Capacitor Voltage Equalization Control Strategy for Low-frequency Energy Storage MMC Submodule
摘要
Abstract
Aiming at the problem of large fluctuations in the voltage amplitude of traditional MMC submodules under low-frequency conditions,this paper proposes a new voltage equalization control strate-gy for energy storage MMC low-frequency submodules based on supercapacitors and bidirectional DC/DC converters,and uses a bidirectional DC/DC converter based on the overall energy sequencing algorithm of the submodules to control the supercapacitance energy storage system to maintain the stability of the ca-pacitor voltage of the submodules under the low-frequency conditions of MMC.In this paper,MATLAB/Simulink is used to simulate the voltage equalization control strategy of the new energy storage MMC low-frequency submodule,and the simulation results show that the proposed control strategy can effectively suppress the fluctuation of the capacitor voltage of the submodule under low-frequency working condi-tions.关键词
模块化多电平换流器/低频控制/双向DC/DC控制/子模块电容电压均衡Key words
modular multilevel converter/low frequency control/bidirectional DC/DC control/submod-ule capacitor voltage equalization分类
信息技术与安全科学引用本文复制引用
孙浩,徐友,赵涛,王春霖,李桂璞..一种低频储能型MMC子模块电容电压均衡控制策略[J].机械与电子,2024,42(1):26-30,36,6.基金项目
国家自然科学基金资助项目(62203211) （62203211）
江苏省研究生科研与实践创新计划(SJCX23_1200) （SJCX23_1200）
