一种高效率三相逆变器拓扑结构及其实现方法的实验研究  

Research on a topology and its control strategy for high efficient three-phase PWM inverter

作　　者：丁肖宇[1] 屈克庆[1] 徐健[1] 陈国呈[1] 

机构地区：[1]上海大学机电工程与自动化学院自动化系,上海200072

出　　处：《电气传动自动化》2006年第6期1-5,18,共6页Electric Drive Automation

基　　金：上海市博士后科研资助项目;项目编号:05R214122;上海市教委资助项目;项目编号:204627

摘　　要：对一种软开关三相SPWM逆变器的控制策略及实现方法作了详细的实验研究。该软开关三相逆变器的辅助谐振电路仅使用1个功率开关器件和6个二极管,电路结构简单,控制方便,而且由于该辅助谐振电路仅在逆变器三相桥臂上的功率开关器件需要开通的前若干微秒时间内软开关工作,其功率损耗很小,从而提高了系统的效率。实验结果证明了本控制策略的正确性。The control strategy and its implementation of three-phase soft-switching PWM inverter are researched in details. The resonant AC circuit of this inverter includes only one power switch device and six diodes. Its topology is simple, and convenient for control. The auxiliary resonant circuit operates by soft-switching mode in several microseconds before power switch devices communication, so the loss of power devices is very low, and the system efficient is increasing. The experimental results from show the effectiveness of the proposed control strategy.

关 键 词：逆变器 ZVT 软开关 交流谐振环节 

分 类 号：TM46[电气工程—电器]