CAJ | 학술논문

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3 kW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。
병망역변기루전류적존재회도치역변기계동급운행고장심지인신상해。문장결합3 kW광복병망역변기실제공정연발과정중팽도적루전류문제위연구대상，대공작과정진행건모분석，포괄계동순간루전류화운행과정루전류분석，조도역변기루전유산생원인병제출루전류해결방안。통과실험방진분석이급실제조시，증명방안능구유효지억제병망역변계통적대지루전류，실현산품화수구。
The leakage current of grid inverter will cause the device startup and operation failure and even personal in -jury.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 for-ward.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 .