一种新型PWM单端推挽式软开关逆变器研究  

Research on a New PWM Single-ended Push Pull Soft-switching Inverter

作　　者：周跃庆[1] 程亦晗[1] 

机构地区：[1]天津大学,天津300072

出　　处：《电力电子技术》2006年第4期106-108,共3页Power Electronics

摘　　要：提出一种新型PWM单端推挽式(Single-Ended Push Pull,简称SEPP)软开关逆变器拓扑结构,以实现感应加热电源中逆变器在较大输入功率调节范围内,其开关器件的零电流(ZCS)和零电压(ZVS)开关。将其与传统的零电压开关PWM-SEPP逆变器进行了仿真分析及实验对比。其结果表明,输入功率调节范围由原来的2.1￣3.1kW提高到0.5￣3.1kW,而且逆变器的转换效率可达到98%。In order to implement the ZCS and ZVS operation over a wider input power range for the inverter of the induction heating power supply,a novel PWM Single-Ended Push Pull （SEPP） soft-switching inverter topology is proposed in this paper.Simulation and experiments have shown the input power ranges of the new circuit topology and conventional ZVS PWM-SEPP inverter arc 0.5-3.1kW and 2.1-3.1kW respectively.h is also shown that the conversion efficiency of the inverter utilizing the new topology can reach 98%.

关 键 词：脉宽调制 逆变器 感应加热 开关 

分 类 号：TM464[电气工程—电器] TM924.5