中国电机工程学报2012，Vol.32Issue(18)：1-8,8.
无变压器非隔离型光伏并网逆变器漏电流抑制技术
A Review of Novel Leakage Current Suppression Techniques for Transformerless Photovoltaic Inverters
摘要
Abstract
Leakage current suppression is one of the most important issues for transformer-less non-isolated grid connected photovoltaic systems.VDE-0126-1-1 specifies that the photovoltaic systems should be disconnected from the grid within 0.3 s in case the leakage current is higher than 300 mA.In order to clarify the origin of the leakage current,this paper provided the system common-mode model,based on which the reason for the leakage current generation was analyzed,and the impacts of different modulation schemes on the leakage current were discussed.In addition,some interesting topologies,which can achieve the leakage current suppression,were presented,and their operation principles and features were discussed.Finally,the development trends of the leakage current suppression techniques were predicted.关键词
无变压器/并网逆变器/光伏/共模/漏电流Key words
transformerless/grid-connected inverters/photovoltaic/common mode/leakage current分类
信息技术与安全科学引用本文复制引用
邬伟扬,郭小强..无变压器非隔离型光伏并网逆变器漏电流抑制技术[J].中国电机工程学报,2012,32(18):1-8,8.基金项目
国家自然科学基金项目 （）
河北省高等学校科学研究项目 （）
河北省自然科学基金项目 （）
