电气传动2016，Vol.46Issue(12)：29-32,4.DOI:10.19457/j.1001-2095.20161207
一种抑制共模漏电流的改进多载波调制策略
An Improved Reduced Common-mode Leakage Current Multicarrier Modulation Strategy
摘要
Abstract
The transformerless PV inverter topology has the advantage of simple structure and provides higher efficiency. However,the topology makes a path for leakage current between the PV module and the ground. Moreover, common multicarrier modulation strategy is adopted to reduce leakage current which has too many numbers of carriers. Based on the H-bridge cascade inverter circuit,an improved modulation strategy was proposed. Not only leakage current in the PV system was reduced,but also half the number of carriers compared to common modulation strategy was used. Eventually,a simulation model based on PSIM was built to verify the effectiveness of the proposed modulation strategy.关键词
非隔离型/多电平逆变器/共模漏电流/多载波调制Key words
transformerless/multilevel inverter/common mode leakage current/multicarrier modulation分类
信息技术与安全科学引用本文复制引用
李国栋,韩富强,闫海云,陈培育,王旭东..一种抑制共模漏电流的改进多载波调制策略[J].电气传动,2016,46(12):29-32,4.基金项目
国网总部科技项目 （）
