中国电机工程学报2017，Vol.37Issue(23)：6988-6994,7.DOI:10.13334/j.0258-8013.pcsee.162483
新型CH5光伏逆变器共模漏电流抑制研究
Research on Common-mode Leakage Current Suppression for a Novel CH5 PV Inverter
摘要
Abstract
Leakage current suppression is one of the key technical issues for the transformerless photovoltaic (PV) systems.Firstly,the conventional current source H4 (CH4) PV inverter was investigated in this paper.The operation principle and common mode loop model were analyzed.The common mode feature and leakage current suppression capability were discussed.Secondly,a new current source H5 (CH5) PV inverter topology was proposed.The theoretical analysis was derived to verify the advantages regarding the leakage current reduction.Also,a new one dimension space vector modulation was proposed to improve the common mode feature to reduce the leakage current.Finally,the experiments of both CH4 and proposed CH5 inverters were carried out on the TMS320F28335 DSP + EP4CE10E22C8 FPGA digital control platform.The experimental results verified the effectiveness of the proposed solution.关键词
非隔离型光伏系统/CH4逆变器/CH5逆变器/空间矢量调制/漏电流Key words
transformerless PV system/current source H4 (CH4) inverter/current source H5 (CH5) inverter/space vector modulation/leakage current分类
信息技术与安全科学引用本文复制引用
郭小强..新型CH5光伏逆变器共模漏电流抑制研究[J].中国电机工程学报,2017,37(23):6988-6994,7.基金项目
国家自然科学基金项目(51677161) （51677161）
河北省杰出青年基金项目(E2016203133).Project Supported by Science Foundation for National Natural Science Foundation of China (51677161) （E2016203133）
Distinguished Young Scholars of Hebei Province (E2016203133). （E2016203133）
