基于多工况的光伏阵列的建模及输出特性分析

Modeling and output characteristic analysis of photovoltaic array based on multiple working conditions

针对光伏系统在实际工作中难以采集多工况下的输出问题,采用Matlab/Simulink搭建了一种实用性的光伏仿真模型,可以在不同温度、光照环境下对任意局部遮阴、短路、开路和老化工况下的输出特性进行单一或多工况的模拟。为贴合实际工作中不同遮阴方式下的输出,该模型细化了光伏组件的局部遮阴模拟方式。仿真结果表明:该模型通过模拟光伏阵列多工况的输出特性,直观地展示出多工况下光伏阵列的输出,提供了一种方便且通用性强的仿真模型。

Aiming at the problem that it is difficult to collect the output of photovoltaic system under multiple working conditions in practical work,Matlab/Simulink is adopted to build a practical photovoltaic simulation model.It can simulate the output characteristics under partial shading,short circuit,open circuit and aging conditions in single or multiple conditions under different temperature and light environment.In addition,in order to fit the output of different shading modes in practical work,the model refined the simulation mode of local shading of photovoltaic modules.The simulation results show that model of article intuitively displays the output of photovoltaic array under the multiple working conditions,and provides a universal simulation model.