广东电力2018，Vol.31Issue(6)：61-67,7.DOI:10.3969/j.issn.1007-290X.2018.006.010
一种应用于光伏系统的新型准Z源逆变器调制策略
Modulation Strategy for A New Quasi Z-source Inverter Used in Photovoltaic System
摘要
Abstract
Compared with traditional voltage-source inverters,the quasi Z-source inverter (qZSI)has higher voltage boosting ability and stability and has been used in the photovoltaic (PV)system,but it needs different modulation strategies to realize its advantages. In order to reduce switching loss of output voltage of the PV system and total harmonic distortion (THD), this paper proposes a kind of new voltage vector pulse-width amplitude modulation strategy which takes no account of zero vector in each section while only insert the shoot-through zero vector into the single phase bridge-arm with switching opera-tion in each section so as to greatly reduce switching frequency of the inverter. Simulation and experiment has verified effec-tiveness of this strategy.关键词
准Z源逆变器/调制策略/光伏系统/直通占空比/总谐波失真Key words
quasi Z-source inverter/modulation strategy/photovoltaic system/shoot-through duty ratio/total harmonic dis-tortion分类
信息技术与安全科学引用本文复制引用
吴军,程尹曼,程启明,李涛,薛阳..一种应用于光伏系统的新型准Z源逆变器调制策略[J].广东电力,2018,31(6):61-67,7.基金项目
国家自然科学基金项目(61573239) （61573239）
上海市自然科学基金项目(15ZR1418600) （15ZR1418600）
