光伏电池组件隐式、显式单二极管模型准确性对比研究  

Accuracy comparison between implicit and explicit single-diode models of photovoltaic cells and modules

作　　者：高献坤[1] 姚传安[1] 高向川[2] 余泳昌[1] 

机构地区：[1]河南农业大学农业部农村可再生能源新材料与装备重点实验室,郑州450002 [2]郑州大学信息工程学院,郑州450001

出　　处：《物理学报》2014年第17期358-367,共10页Acta Physica Sinica

基　　金：河南省重点科技攻关项目(批准号:102102210154);教育部博士点专项科研基金项目(批准号:20104105110004);国家自然科学基金(批准号:U1204607)资助的课题~~

摘　　要：光伏电池组件非线性输出特性的物理建模及其优化参数的准确提取是光伏发电系统设计计算、性能评估及优化控制的重要前提.相对于传统的隐式单二极管模型,该文在光伏电池显式单二极管模型的基础上利用Lambert W函数推导了光伏组件的显式单二极管模型,提出一种基于重启边界约束Nelder-Mead单纯形算法的参数提取方法rbcNM,并利用两种典型光伏电池组件的实测数据对隐式、显式单二极管模型的准确性进行了对比测试和验证.结果表明:rbcNM算法可以快速准确的提取隐式、显式单二极管模型的优化参数,计算结果与实测数据具有很好的一致性,相对于已有文献在准确度上取得了大幅度的提升;显式单二极管模型的准确性显著高于隐式单二极管模型,对光伏电池组件的电流-电压和功率-电压特性曲线具有更高的拟合精度.Accurate physical modeling and parameter extraction for the nonlinear current-voltage （I-V） characteristics of photovoltaic （PV） cells and modules are essential prerequisites for the design calculation, performance analysis, and optimal control of PV generation systems. In contrast to the traditional implicit single-diode models, this paper first derives the explicit single-diode models of PV cells and modules using the Lambert Wfunction, and then proposes a simple and efficient parameter extraction method on the basis of restarting the bound constrained Nelder-Mead simplex method （rbcNM）, For comparing and analyzing the accuracy of implicit and explicit single-diode models, experimental data of the two typical PV cells and modules are tested and verified. Simulation results indicate that the proposed rbcNM method can rapidly and accurately extract the optimal parameters of implicit and explicit single-diode models, the simulation data produced by the extracted parameters of rbcNM method are in very good agreement with the experimental data in all cases. Comparison results show that the accuracy of rbcNM method is quite promising and outperforms the existing methods reported in the literature. Furthermore, the accuracy of explicit single-diode models is significantly higher than that of implicit single-diode models, and thus fit the I-Vcharacteristic curves better.

关 键 词：光伏电池组件 单二极管模型 参数提取 Nelder—Mead单纯形算法 

分 类 号：TM914.4[电气工程—电力电子与电力传动]