MMC电容电压均衡控制策略  

Control Strategy for Capacitor Voltage Balance of MMC

作　　者：江浪[1] 宋平岗[1] 李云丰[1] 段程亭 

机构地区：[1]华东交通大学电气与电子工程学院,江西南昌330013

出　　处：《华东交通大学学报》2014年第2期99-104,共6页Journal of East China Jiaotong University

基　　金：国家自然科学基金项目(50577025)

摘　　要：电容电压的平衡是模块化多电平换流器正常运行的前提,是所有控制算法必须考虑的基本问题。介绍模块化多电平换流器的基本运行原理,研究了载波移相在模块化多电平中的应用。为抑制电容电压的不平衡,设计了电容电压均衡控制器,最后在MATLAB/Simulink中搭建了仿真模型,仿真结果表明设计的控制器能较好地稳定电容电压。Capacitor voltage balancing is the premise for modular multi-level converter’s normal operation, which is a fundamental issue for all control algorithms. This paper describes the basic operating principles of modular multilevel converter and researches carrier phase shift in the modular multi-level application. To suppress the ca-pacitor voltage imbalance, the paper designs the capacitor voltage balancing controller, building a simulation mod-el in the MATLAB/Simulink. The results indicate that the designed controller can stabilize the capacitor voltage well.

关 键 词：模块化多电平换流器 高压直流输电 载波移相 均衡控制 

分 类 号：TM464[电气工程—电器]