中国电机工程学报2011，Vol.31Issue(21)：48-55,8.
采用载波移相技术的模块化多电平换流器电容电压平衡控制
Submodule Capacitance Voltage Balancing of Modular Multilevel Converter Based on Carrier Phase Shifted SPWM Technique
摘要
Abstract
Modular multilevel converter （MMC） was a new multilevel converter suitable for VSC-HVDC. The working principle of the submodules of MMC and converter topology were introduced in this paper. Considering the new topology and its application in the field of high voltage direct current transmission system, a novel carried phase shifted sinusoidal pulse width modulation（CPS-SPWM） scheme suitable for MMC was presented. Compared with other modulation schemes, the scheme proposed had superior dynamic regulation and excellent harmonic characteristics at lower switching frequency. Voltage balancing among the submodules was a crucial problem of MMC. Based on the equipartition of energy and voltage balance, a voltage-balancing scheme of submodules was presented in this paper with the topology of MMC and modulation. This scheme can effectively ensure each submodule at the same capacitance and voltage level. The correctness and effectiveness of the proposed schemes are verified by the simulation.关键词
模块化多电平换流器/高压直流输电/载波移相调制技术/环流/电容电压平衡Key words
modular multilevel converter/high voltagedirect current transmissionpulse width modulation carrier phase-shifted sinusoidaltechnique/circulating current/capacitance voltage balancing分类
信息技术与安全科学引用本文复制引用
赵昕,赵成勇,李广凯,饶宏,黎小林..采用载波移相技术的模块化多电平换流器电容电压平衡控制[J].中国电机工程学报,2011,31(21):48-55,8.基金项目
基金项目：“十一五”国家科技支撑计划重大项目（2010BAE00816)：高等学校学科创新引智计划（B08013). （）
