基于Saber平台的光伏并网微逆变器建模及仿真分析  

Modeling and Simulation Analysis of Photovoltaic Grid-Connected Micro-Inverter Based on Saber Platform

作　　者：高延丽[1] 焦晓雷[1] 黄红桥[2] 徐柯[1] 

机构地区：[1]国电南瑞科技股份有限公司,江苏南京210061 [2]湖南省电力公司永州分公司,湖南永州425000

出　　处：《电工电气》2013年第6期19-22,共4页Electrotechnics Electric

摘　　要：设计了一种单级式微逆变器控制系统,针对传统PI控制不能实现无静差控制的缺点,提出了一种可实现并网电流无静差的准PR并网控制策略,基于Saber平台建立了光伏并网微逆变器仿真系统。仿真结果表明,采用准PR控制的微逆变器具有很好的输出电压和电流特性,总谐波畸变率均低于公共电网谐波国家标准。A kind of single step micro-inverter control system was designed. Aiming at disadvantages of traditional PI control which is unable to realize non-static-error control, this paper raised a quasi proportion resonance （PR） grid-connected strategy carrying out grid-connection cur- rents non-static-error control and built a photovoltaic grid-connected micro-inverter simulation system based on Saber platform. Simulation result shows that the micro-inverter in adoption of quasi proportion resonance grid-connected control strategy has very good output voltage and current characteristics and the whole harmonic distortion ratio is less than the national standard of public grid harmonies.

关 键 词：微逆变器 光伏并网 准PR控制 Saber平台 

分 类 号：TM464[电气工程—电器] TM615