电气传动2026，Vol.56Issue(3)：19-24,6.DOI:10.19457/j.1001-2095.dqcd26188
一种低漏电流六开关光伏逆变器
A Six-switch Photovoltaic Inverter with Low Leakage Current
摘要
Abstract
To eliminate the leakage current of single-phase non-isolated photovoltaic inverter,a six-switch photovoltaic inverter topology with low leakage current was proposed.The topology consists of a voltage multiplier circuit,a common ground three-level inverter circuit and a LC output filter circuit.The combination of voltage multiplier circuit and three-level circuit effectively improves the utilization of DC-link voltage.In addition,the leakage current could be completely eliminated through the common ground treatment of the DC side and AC side of the inverter.For the proposed new single-phase non-isolated photovoltaic inverter,a new sine pulse width modulation(SPWM)scheme and a method for selecting flying capacitors were proposed by analyzing the operating modal of the circuit topology.A prototype with an output of 100 W was designed,and the correctness of the theoretical analysis was verified by simulation and experiment.关键词
光伏发电/单相逆变器/漏电流/非隔离/共地型/倍压电路Key words
photovoltaic power generation/single-phase inverter/leakage current/non-isolated/common ground type/voltage multiplier circuit分类
信息技术与安全科学引用本文复制引用
张建雯,马海啸,简家宏,刘跃能..一种低漏电流六开关光伏逆变器[J].电气传动,2026,56(3):19-24,6.基金项目
国家自然科学基金面上项目(51777098) （51777098）
2023年国家级大学生创新训练项目(202310293028Z) （202310293028Z）
