电测与仪表2016，Vol.53Issue(11)：66-71,6.
光伏发电并／离网切换控制策略研究
Research on switching control strategy of grid-connected and off-grid for PV system
摘要
Abstract
It is difficult to control the dual-mode smooth switch for grid-connected and off-grid photovoltaic power gen-eration system .In this paper , we establish simulation model of three phase photovoltaic power generation system , ana-lyze and research the switching control strategies of grid-connected and off-grid model for photovoltaic inverter .A method to realize smooth switch between grid-connected and off-grid was proposed .Three split-phase switches were used to operate switch by detecting zero grid voltage of each phase and coordinating transformation sequence of control strategy reasonably .PI controller was loaded initial value to maintain output voltage stability of inverters .Result of simulation display that waveform of inverters were improved effectively and prove the feasibility of the control scheme .关键词
光伏逆变器/平滑切换/分相开关/并网Key words
photovoltaic inverter/smooth switch/split-phase switch/grid-connected分类
信息技术与安全科学引用本文复制引用
万晓凤,胡伟,余运俊,辛建波..光伏发电并／离网切换控制策略研究[J].电测与仪表,2016,53(11):66-71,6.基金项目
国家国际科技合作专项（2014DFG72240）；国家科技支撑计划（2013BAA01B01）；江西省科技支撑计划（2013BBE50102）；江西省科技落地计划 （）
