CAJ | 학술논문

为提高光伏系统仿真模型的精确性,提出了基于实际工作条件下的光伏组件主参数估算方法.该方法根据光伏组件实际运行环境中的光照和温度,利用光伏电池工作原理对其主参数进行估算.用该方法对一块型号为“QSM125—160X”的单晶硅光伏组件进行主参数估算,并在Matlab/Simulink环境下进行仿真建模,将其模型输出值与实验测量值进行对比.对比结果表明,在不同光照和温度下,用该估算方法得到的主参数建立的光伏模型,其模型输出值与实验测量值能很好地吻合,短路电流和最大功率点电流误差极小可以忽略不计,开路电压和最大功率点电压误差分别为1.28%和1.17%.
위제고광복계통방진모형적정학성,제출료기우실제공작조건하적광복조건주삼수고산방법.해방법근거광복조건실제운행배경중적광조화온도,이용광복전지공작원리대기주삼수진행고산.용해방법대일괴형호위“QSM125—160X”적단정규광복조건진행주삼수고산,병재Matlab/Simulink배경하진행방진건모,장기모형수출치여실험측량치진행대비.대비결과표명,재불동광조화온도하,용해고산방법득도적주삼수건립적광복모형,기모형수출치여실험측량치능흔호지문합,단로전류화최대공솔점전류오차겁소가이홀략불계,개로전압화최대공솔점전압오차분별위1.28%화1.17%.
In order to improve the accuracy of PV system simulation model, a new method for evaluating the main parameters values of PV module is proposed. According to the irradiances and temperature in real condition of operation and the principle of PV cell, this method evaluates the main parameters values of PV module. In order to validate the method, this work evaluates the main parameters values of a QSM125—160X PV module, and carries out the simulation in Matlab/Simulink environment using the evaluated values. The comparison between the model output and experimental measurement shows that the simulation is consistent with the measured I–V characteristics, the deviation is almost negligible at short circuit current and at the maximum power point current, errors are 1.28%and 1.17%at open circuit voltage and at the maximum power point voltage, respectively.