电工技术学报2012，Vol.27Issue(10)：196-201,6.
新型级联式交流斩波器
Cascade Mode Three-Level AC Chopper
摘要
Abstract
Three-level(TL) AC switch unit is produced by two-level AC switch unit connected together in series manner.TL AC converter is produced by applying TL AC switch unit in basic converter.By combining Buck mode TL and Boost mode AC converters,a novel cascade mode AC chopper was proposed.The AC chopper can chopper unsteady high AC voltage with distortion into regulated sinusoidal voltage with low THD.The AC chopper,which is suit for high input voltage fields,has such following fetures as less power stages,bi-directional power flow,lower voltage stress in the front stage,low THD of output voltage,Buck and Boost mode conversion,unchanged voltage stress in the back stage.The operation principle was also investigated.For cascade mode TL AC chopper,control strategy of flying capacitor voltage was also presented.The AC chopper and the control strategy are fully proved by experimental results.关键词
级联式/三电平/交流斩波器/浮动电容电压控制Key words
Cascade mode/three-level(TL)/AC chopper/control of flying capacitor voltage分类
信息技术与安全科学引用本文复制引用
李磊,唐栋材..新型级联式交流斩波器[J].电工技术学报,2012,27(10):196-201,6.基金项目
国家自然科学基金 （）
江苏省自然科学基金（BK2009389）资助项目 （）
