模块化多电平变流器调制策略研究  

Research on the Modulation Scheme of Modular Multilevel Converter

作　　者：戴鹏[1] 郭全军[1] 梁改革[1] 公铮[1] 赵霞[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电气传动》2014年第1期49-52,共4页Electric Drive

摘　　要：介绍了模块化多电平变流器(modular multilevel converter,MMC)的拓扑结构和工作原理,针对MMC的拓扑特点,根据MMC各相投入的子模块总数是否恒为N的原则,基于载波层叠技术,研究了其输出相电压为N+1电平和2N+1电平的调制策略,并提出了实现方案,最后通过Matlab/Simulink仿真环境和搭建的MMC样机验证了该调制策略的可行性。The topology and the principle of modular multilevel converter（MMC）were introduced.Considering the characteristic of the topology and based on the principle of whether the number of inputting submodules is N,the modulation scheme of output voltage being N＋ 1 levels and 2N＋ 1 levels was analyzed respectively,and the realizing schemes were presented,with the technology of carrier disposition.The feasibility of the modulation scheme is verified by the Matlab/Simulink and experiment.

关 键 词：模块化多电平变流器 载波层叠 调制策略 电容均压 

分 类 号：TM461[电气工程—电器]