中国电机工程学报2016，Vol.36Issue(17)：4665-4671,7.DOI:10.13334/j.0258-8013.pcsee.150600
三相H7电流源光伏逆变器共模电流抑制研究
Common Mode Current Suppression for Transformerless Three-phase H7 Current Source Photovoltaic Inverters
摘要
Abstract
The common mode current is one of the most important issues for the transformerless photovoltaic (PV) inverter systems. In order to deal with this problem, a new transformerless three-phase seven-switch H7 current source PV inverter was proposed in this paper. Firstly, the high frequency common mode model of the PV inverter was established. The relationship associated with the common mode voltage and switching states was analyzed. The effect of the conventional space vector modulation on the system common mode voltage and common mode current was discussed. A novel space vector modulation strategy was proposed to deal with the common mode current problem. Finally, the experiments were carried out in the TMS320F28335 DSP+EP4CE10E22C8 FPGA digital control platform. The experimental results verify the feasibility and effectiveness of the proposed solution.关键词
非隔离型光伏系统/三相光伏逆变器/共模电流Key words
transformerless PV system/three-phase PV inverter/common mode current分类
信息技术与安全科学引用本文复制引用
郭小强..三相H7电流源光伏逆变器共模电流抑制研究[J].中国电机工程学报,2016,36(17):4665-4671,7.基金项目
国家自然科学基金项目(51307149)；中国博士后科学基金特别资助项目(2015T80230)。Project Supported by National Natural Science Foundation of China (51307149) （51307149）
China Postdoctoral Science Foundation (2015T80230) （2015T80230）
