摘要
在同步坐标系中,三相电压型PWM整流器电流控制系统是一双输入双输出二阶系统,对系统性能的分析一般是建立在系统彻底解耦基础上,而实际上由于输入电感值的变化,系统不可能彻底解耦。
In this paper, a novel zero-voltage and zero-current-switching（ZVZCS） three-level converter is presented, which consists of a simple auxiliary circuit in the secondary winding. The leading switching can realize ZVS and the lagging switching can realize ZCS with phase shift technique. Through introducing a coupled inductor replacing the common output inductor, the induced voltage of the coupled inductor in the second side is reflected to the primary side of the power transformer and is used to reset the circulating current at the zero state. By regulating the winding ratio of the coupled inductor, the voltage is used to reset the primary current can be easy adjusted.The operation and parameter design are disscused.,and experimental results are also given. The converter has feature high efficienct , lower voltage stress of the rectifier diode and self-adjustment of the circuit, suitable for high voltage and high power applications.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第2期143-148,共6页
Proceedings of the CSEE
