3kW光伏并网逆变系统漏电流分析  

Leakage current analysis on 3kW photovoltaic grid-connected inverter system

作　　者：梅盼 雷必成[2] 陈跃[2] 

机构地区：[1]浙江理工大学,杭州310018 [2]台州学院,浙江台州317000

出　　处：《电测与仪表》2015年第18期113-117,共5页Electrical Measurement & Instrumentation

摘　　要：并网逆变器漏电流的存在会导致逆变器启动及运行故障甚至人身伤害。文章结合3k W光伏并网逆变器实际工程研发过程中碰到的漏电流问题为研究对象,对工作过程进行建模分析,包括启动瞬间漏电流和运行过程漏电流分析,找到逆变器漏电流产生原因并提出漏电流解决方案。通过实验仿真分析以及实际调试,证明方案能够有效地抑制并网逆变系统的对地漏电流,实现产品化需求。The leakage current of grid inverter will cause the device startup and operation failure and even personal injury.Combining with the leakage current problems in the process of the 3kW photovoltaic （ PV） grid inverter project as the research object ,, through the model building analysis , including starting instantaneous leakage current and leakage current operation process analysis , this paper finds the cause of the leakage current and its solution is put forward.Through the experimental simulation analysis and the actual debugging , it proves that this scheme can effective-ly inhibit the leakage current of 3kW photovoltaic （PV） grid inverter system and achieve the production requirements .

关 键 词：漏电流 3kW 光伏 并网 逆变 

分 类 号：TM464[电气工程—电器]