An Improved Quasi-Z-Source Inverter for Grid-Connected Photovoltaic System

摘要：

　　An improved quasi-Z-source inverter for grid-connected photovoltaic system is proposed in this study. Two tapped-inductors are substituted for the inductors of quasi-Z-source inverter (qZSI) respectively. Compared with the classic topology, the proposed topology can not only arise the boost ability but also make the voltage stress be decreased. The operation principle and voltage stress of the proposed topology is analyzed theoretically and compared with that of qZSI and switched-inductor quasi-Z-source inverter (SL-qZSI). The results of simulations and experiments are shown to validate the feasibility of the proposed topology.

关键词： tapped-inductor quasi-Z source inverter boost ability voltage stress

作者: Sun Bo Li Wen Lu Hailing Xu Chengji Zhao Chengbin

作者单位: State Grid Shanghai Pudong Electric Power Supply Company,Shanghai 200122,China

会议类型: 国际会议

会议名称: 2016中国国际供电会议(CICED2016)

会议地点: 西安

会议语种:英文

页码: 1-5

在线出版日期: 2016-09-01（万方平台首次上网日期，不代表论文的发表时间）