摘要
在分析光伏并网发电系统的结构和常用控制方案的基础上,根据太阳能光伏(PV)电池的内部结构和输出特性,搭建了PV电池仿真模型;阐述了可跟踪光伏点及光伏电池发出的最大功率的光伏MPPT控制方法,此方法可以最大程度提高光伏电池的效率;最后详细分析了光伏并网控制原理及其控制策略。通过对并网逆变器采用瞬时值控制方法实现了低THD、高功率因数的并网要求。
With an analysis of the structure and the common control scheme of the photovoltaic grid system,this paper builds a simulation model of solar photovoltaic（ PV） battery based on the internal structure and output characteristics of PV battery,expounding a photovoltaic MPPT control method which can track the photovoltaic points and the maximum power of the photovoltaic cells. This method can improve the efficiency of photovoltaic cells to the greatest extent. Finally,the principle and control strategy of grid connected photovoltaic system are analyzed in detail. Through the instantaneous value control method of grid connected inverter,the requirement of grid connection with low THD and high power factor is achieved.
作者
杨浩
吴静妹
YANG Hao;WU Jingmei(Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241002;Hohai University Wentian College,Maanshan 243031)
出处
《常州工学院学报》
2018年第2期27-30,共4页
Journal of Changzhou Institute of Technology
基金
安徽省高校自然科学重点研究项目(KJ2017A747)
安徽机电职业技术学院自然科学重点科研项目(2016zdzr13)
关键词
光伏并网系统
PV电池
MPPT控制
瞬时值控制
photovoltaic grid connection system
PV battery
MPPT control
instantaneous value control
