基于高斯-赛德尔迭代法的光伏电池参数辨识与最大功率点基准曲线的研究  

Research on parameter solution algorithm and reference curve at maximum power point of photovoltaic cell based on Gauss-Seidel iteration

作　　者：胡庆燚[1] 王冰[1] 张鹏飞[1] 荣军峰 

机构地区：[1]河海大学能源与电气学院,江苏南京211100

出　　处：《可再生能源》2015年第12期1803-1808,共6页Renewable Energy Resources

基　　金：国家自然科学基金(51477042)

摘　　要：光伏电池的I-V输出特性包含超越方程。文章首先利用光伏生产商提供的标准条件下的数据手册,基于高斯-赛德尔迭代法,提出了一种新的模型参数求解方法;然后,根据模型参数与光照强度、温度之间的关系式,确定出任意环境条件下最大功率点的基准值(功率、电流、电压),并且给出了最大功率点基准曲线的绘制方法;最后,通过将实际光伏电站求得的基准值和实测数据进行比较,验证了方法在实际运用中具有可行性。A main problem to accurately identify five parameters in the equation is to solve a transcendental equation that is contained in I-V output characteristics of photovoltaic cell.Gauss-Seidel Iteration is an effective method for solving transcendental equation. By controlling the iterative error precision, the accurate solution can be achieved. Firstly,based on Gauss-Seidel Iteration a new solution algorithm of photovoltaic cell parameters is proposed, which only needs the data sheet in standard test condition; secondly,according to the relationship between the model parameters and light intensity and temperature, the steps to calculate the reference values of maximum power point（ power, current and voltage） of any light intensity and temperature are proposed. Also a method of drawing the reference curve is given. Finally by comparing the experimental calculation and the measured data of the actual photovoltaic power station, the possibility of the proposed method is verified in actual application.

关 键 词：高斯-赛德尔迭代法 参数辨识 最大功率点 基准曲线 光伏系统 

分 类 号：TK514[动力工程及工程热物理—热能工程]