| 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 |
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| 引用本文： | 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). |
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| 作者姓名： | 赵昕 赵成勇 李广凯 饶宏 黎小林 |
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| 作者单位： | 1. 新能源电力系统国家重点实验室（华北电力大学）,北京市昌平区,102206
2. 南方电网科学研究院,广东省广州市,510623 |
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| 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); 华北电力大学科研基金资助项目(200812002)的支持~~ |
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| 摘 要： | 模块化多电半换流器（modularmultilevelconveer，MMC）是应用于电压源换流器直流输电（voltagesourceconverter-highvoltageDC，VSC．rrvoc）的新型多电平换流器拓扑。该文介绍了MMC的拓扑结构及相应的工作原理。针对该新型换流器拓扑的特点及其在高压直流输电领域中的应用，提出一种新颖的适用于模块化多电平换流器的载波移相调制策略（carrierphase．shiftedSPWM，CPS．SPWM）。与其他调制策略相比，该策略动态调节能力强，且使MMC在较低开关频率的同时，亦具有良好的谐波特性。换流器中子模块的电容电压平衡问题，是MMC亟待解决的难点之一。该文根据子模块能量均分和电压均衡两种原则，结合换流器拓扑结构特点和调制策略，提出一种子模块电容电压平衡控制策略，有效确保各子模块电容电压处于相同的动态变化范围。仿真结果验证了所提策略的正确性与有效性。
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| 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 |
Submodule Capacitance Voltage Balancing of Modular Multilevel Converter Based on Carrier Phase Shifted SPWM Technique |
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| ZHAO Xin,ZHAO Chengyong,LI Guangkai,RAO Hong,LI Xiaolin,Changping District,Beijing ,China,.CSG Technology Research Center,Guangzhou ,Guangdong Province,China.Submodule Capacitance Voltage Balancing of Modular Multilevel Converter Based on Carrier Phase Shifted SPWM Technique[J].Proceedings of the CSEE,2011,31(21). |
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| Authors: | ZHAO Xin ZHAO Chengyong LI Guangkai RAO Hong LI Xiaolin Changping District Beijing China CSG Technology Research Center Guangzhou Guangdong Province China |
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| Affiliation: | ZHAO Xin1,ZHAO Chengyong1,LI Guangkai2,RAO Hong2,LI Xiaolin2(1.State Key Lab of New Energy Power System(North China Electric Power University),Changping District,Beijing 102206,China,2.CSG Technology Research Center,Guangzhou 510623,Guangdong Province,China) |
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| 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 excel... |
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| Keywords: | modular multilevel converter high voltage direct current transmission carrier phase-shifted sinusoidal pulse width modulation technique circulating current capacitance voltage balancing |
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