公开(公告)号：US20160329828A1

公开(公告)日：2016-11-10

申请号：US14903843

申请日：2014-12-12

Applicant: NORTHEASTERN UNIVERSITY ,  SHENYANG UNIVERSITY OF TECHNOLOGY

Inventor： Huaguang ZHANG ,  Euhui CHU ,  Xing ZHANG ,  Bingyi ZHANG ,  Xiuchong LIU ,  Shijie YAN ,  Huiming XIONG ,  Xiaochen YANG

IPC: H02M7/44 ,  H02M1/08

CPC classification number: H02M7/44 ,  H02M1/08 ,  H02M7/5152 ,  H02M7/538 ,  H02M7/5387 ,  H02M2001/0058 ,  H02M2001/342 ,  H02M2007/4815 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: Provided are a double auxiliary resonant commutated pole three-phase soft-switching inverter circuit and a modulation method. The circuit includes a three-phase main inverter circuit and a three-phase double auxiliary resonant commutator circuit. An A-phase double auxiliary resonant commutator circuit, an A-phase main inverter circuit, a B-phase double auxiliary resonant commutator circuit, a B-phase main inverter circuit, a C-phase double auxiliary resonant commutator circuit and a C-phase main inverter circuit are connected in parallel in sequence and simultaneously connected with a DC power supply in parallel. The present invention can achieve the separation of the resonant current of the double auxiliary resonant commutator circuit from the load current at the moment of current commutation, thereby effectively reducing the current stress of the auxiliary switching tubes and the efficiency can be greatly increased particularly under light load condition.

Abstract translation: 提供双辅助谐振换向极三相软开关逆变电路及调制方法。 该电路包括三相主逆变器电路和三相双辅助谐振换向器电路。 A相双辅助谐振换向器电路，A相主逆变器电路，B相双辅助谐振换向器电路，B相主逆变器电路，C相双辅助谐振换向器电路和C相 主逆变电路并联连接并联并联直流电源。 本发明可以实现双电源辅助谐振换向器电路的谐振电流与电流换向时的负载电流的分离，从而有效地减小辅助开关管的电流应力，特别是在光照下可以大大提高效率 负载条件。