中国电机工程学报2017，Vol.37Issue(10)：2955-2962,8.DOI:10.13334/j.0258-8013.pcsee.151532
非隔离型三相FB7光伏逆变器研究
Research on Transformerless Three Phase Full Bridge FB7 PV Inverter
摘要
Abstract
Common mode current suppression is one of the key issues in transformerless PV grid-connected systems.According to the problem of common mode current suppression in conventional three-phase PV inverter,a novel three-phase circuit named FB7 PV inverter was proposed,working principle was analyzed as well.A new carder-based method based on Boolean function was proposed according to the relationship between common mode voltage and switching states.This new method could achieve unipolar output line voltage as well as reduce common mode current.Finally,the proposed modulation was carried out in the TMS320F 28335DSP + XC3S400FPGA digital control platform,and then the results were compared with three-phase FB6 inverter.The experiment tests are conducted to verify the effectiveness of the proposed topology and modulation strategy.关键词
非隔离型光伏系统/FB6光伏逆变器/FB7光伏逆变器/共模电流Key words
transformerless PV system/FB6 PV inverter/FB7 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,贺冉..非隔离型三相FB7光伏逆变器研究[J].中国电机工程学报,2017,37(10):2955-2962,8.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 National Natural Science Foundation of China (51677161) （E2016203133）
Science Foundation for Distinguished Young Scholars of Hebei Province (E2016203133). （E2016203133）
