摘要
提出了一种低电压应力Z源电路拓扑,该电路通过二极管的控制,在直通时对电感进行并联充电,在非直通时使电感串联放电,从而以较短的直通占空比获得较大的升压比,达到降低功率开关电压应力的目的。分析了电路的工作原理并进行了仿真与实验研究,结果验证了电路的有效性。
This paper proposed a kind of low voltage stress Z-source inverter topology. In the topology, the induetors of Z-source can be connected alternatively in parallel during the time of shoot-through and in series during the other time. Thus the network can obtain a high boost factor with a small shoot-through duty ratio and can decrease the voltage stress across the switch divices greatly. The principle of the topology was analyzed in detail, the simulation and experiment were made as well. The results verified the validity of the topology.
出处
《价值工程》
2015年第10期132-134,共3页
Value Engineering
基金
常熟理工学院大学生实践创新训练计划项目支持
关键词
Z源逆变器
电压应力
直通占空比
等效直流电压
电感串并联
Z-source inverter
voltage stress
shoot-through duty ratio
equivalent dc voltage
inductor series-parallel connection