摘要
介绍了模块化多电平变流器的拓扑结构与工作原理,提出了适用于模块化多电平变流器的控制策略与子模块储能电容预充电策略,并进行了SVG样机研制。相关实验结果表明:模块化多电平变流器具有良好的动态响应性能,输出电压电平数较高,电压谐波含量小,工程应用前景十分广阔。
It mainly introduced the topology and working principles of modular multilevel converter （MMC）, put forward a control strategy and sub-module storage capacitor pre-charge strategy of the MMC. In addition, the prototype of SVG was developed. The relevant experimental results show that the MMC has a good dynamic response performance, higher number of output voltage levels and small voltage harmonic content, which will contribute to the broad prospects of engineering application.
出处
《大功率变流技术》
2013年第6期61-65,共5页
HIGH POWER CONVERTER TECHNOLOGY
关键词
模块化多电平变流器
最近电平逼近
预充电
SVG实验
modular multilevel converter （MMC）
nearest level modulation （NLM）
pre-charge
SVG experiment
