光伏电池参数求解与最大功率点基准值的研究

Research on parameter solution algorithm and reference value at maximum power point of photovoltaic cell

文章基于光伏电池的I-V和P-V输出特性,利用Lambert W函数,提出了一种新型求解光伏电池模型参数的算法,并给出在任意光照强度和温度下,光伏系统最大功率点基准值和最基准曲线的方法。最后与实测数据仿真比较,验证了所提参数求解方法的准确性以及对基准值分析的有效性。

Based on the I-V and P-V characteristic of photovohaic cell, by using Lambert W function, a solution algorithm of photovoltaic cell parameters is proposed, which only need the data sheet, then the procedure to calculate the reference values of maximum power point （ power, current and voltage ） under any light intensity and temperature conditions is given and a method of drawing the reference curve is introduced. At last, comparing with experimental results and data simulations, the accuracy of the solution algorithm and the validity of the analysis of the reference curve are verified.