Research on Submodule Capacitance Voltage Balancing of MMC Based on Carrier Phase Shifted SPWM Technique

摘要：

Modular multilevel converter (MMC) is a new multilevel converter suitable for VSC-HVDC. The principle of the submodules and converter topology are introduced in this paper. A novel carried phase shifted sinusoidal pulse width modulation (CPS-SPWM) scheme suitable for MMC in VSC-HVDC is presented. Voltage balancing among the submodules is a crucial problem of MMC. Based on the energy equipartition and voltage balance,a capacitor voltage-balancing strategy is presented in this paper with the topology of MMC and modulation. This scheme could effectively ensure each submodule at the same capacitor voltage level. The correctness and effectiveness of the schemes were verified by the simulation.

关键词： modular multilevel converter high voltage direct current transmission carrier phase-shifted sinusoidal pulse width modulation technique circulating current capacitance voltage balancing

作者: Xin Zhao Guangkai Li Chengyong Zhao

作者单位: Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry

会议类型: 国际会议

会议名称: 2010年中国国际供电会议(CICED 2010)

会议地点: 南京

会议语种:英文

页码: 1226-1231

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）