CAJ | 학술논문

提出了一种新颖的零电压开关全桥逆变器电路，在单H桥逆变电路的直流侧增加有源箝位软开关支路，可以实现所有开关管的零电压开通，同时由于谐振电感的存在，还可以抑制主开关管的反并联二极管反向恢复电流，从而降低逆变器的开通损耗和反向恢复损耗。本文较为详细地分析了电路实现软开关的各个过程，并从理论上计算了软开关实现条件，最后搭建了300 W的实验样机进行了实验验证。
제출료일충신영적령전압개관전교역변기전로，재단H교역변전로적직류측증가유원겸위연개관지로，가이실현소유개관관적령전압개통，동시유우해진전감적존재，환가이억제주개관관적반병련이겁관반향회복전류，종이강저역변기적개통손모화반향회복손모。본문교위상세지분석료전로실현연개관적각개과정，병종이론상계산료연개관실현조건，최후탑건료300 W적실험양궤진행료실험험증。
A novel zero voltage switching full?bridge inverter circuit is proposed. Only an active?clamp soft?switc?hing branch into the single H?bridge inverter circuit’ s dc link side is added, which can achieve zero?voltage switc?hing ( ZVS) of all switching devices, and inhibit the anti?parallel diode reverse recovery current of the main switc?hing devices to reduce the inverter switching losses and reverse recovery loss. This inverter can use common Pulse Width Modulation ( PWM) . At the same time the inverter can use less devices and simple structure. A detailed a?nalysis of the soft switching process is given, and theoretically calculate the requirement of the soft?switching branch. The operational waveforms of the inverter at positive half?cycle and the stage analysis of the inverter at posi?tive half?cycle are given to help understanding. Before the testing machine is built, the Saber simulation software is carried out to verify the correctness of the theoretical analysis. At last a 300W testing machine is built for experi?ment to test and verify.