摘要
为得到光伏组件动态工作状态,以光伏组件单二极管物理模型为基础,首先结合参数与光强、温度间关系联合Pade逼近算法提出一种动态修正方法;其次为解决光伏组件物理模型中Ⅰ-Ⅴ特性方程为电压-电流隐式形式而无法直接使用的问题,综合Lambert(W)函数提出一种显式化算法,将电流表示成电压的显式形式;最后运用Matlab软件对模型进行仿真,结合实测数据进行模型验证,验证模型通用性,对比现有高精度模型进行误差分析,分析模型精度。
On basis of the physical model of the solar panel in single-diode form,a dynamic correction method for the changeable working state of solar panel is proposed,which fuses the correlativity analysis among related parameters,light intensity and temperature,and considering Pade approximation algorithm as well.Moreover,due to the practical restriction derived from the implicit Ⅰ-Ⅴ characteristics within physical model,combined with lambert(W)function-based,an explicit algorithm is proposed to fulfill the current expression in terms of voltage.With the numerical simulation carried out,together with samples of measured data,the present model is proved to possess strong versatility as expected.Finally,the model precision estimate is given by means of error comparison analysis with existing model with high precision.
作者
焦圣喜
徐海燕
王亮
文露
Jiao Shengxi;Xu Haiyan;Wang Liang;Wen Lu(College of Automation Engineering,Northeast Electric Power University,Jilin 132012,China;State Grid Ningbo Power Supply Company,Ningbo 315000,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第4期44-50,共7页
Acta Energiae Solaris Sinica
基金
吉林省科技厅自然科学基金(20160101249JC)。
