基于模块组合多电平变流器的STATCOM研究  

Research of STATCOM based on modularized multilevel converters

作　　者：宋忠友[1] 高晋[1] 王瑞妙[1] 陈涛[1] 徐瑞林[1] 

机构地区：[1]国网重庆市电力公司电力科学研究院,重庆401123

出　　处：《电子技术应用》2014年第3期62-64,共3页Application of Electronic Technique

摘　　要：研究了基于模块组合多电平变流器MMC(Modular Multilevel Converter)的大容量STATCOM的控制策略。对MMC的工作原理和STATCOM运行特性作了分析,建立了M-STATCOM动态模型,并设计一种新的电容均压方法。同时,采用固定开关频率的直接电流控制策略,进一步增强补偿效果。最后利用Matlab/Simulink对系统进行了仿真,验证了所提方法的正确性和有效性。The control strategy of MMC （Modularized Multilevel Converter）-based STATCOM（static synchronous compensator）is studied.The working principles of M-STATCOM are analyzed.The dynamic model of STATCOM is derived and a new method of voltage balancing is adopted.The direct current control strategy based on fixed switching frequency is proposed to improve the dynamic and steady response of STATCOM.Finally,the system is simulated with Matlab/Simulink,and the simulation results validate the correctness and validity of the method.

关 键 词：模块组合多电平变换器 静止同步补偿器 电容均压 直接电流控制 

分 类 号：TM464[电气工程—电器]