光伏组件单二极管模型的新型曲线拟合算法  

NOVEL CURVE-FITTING ALGORITHM OF SINGLE-DIODE MODEL OF PV MODULES

作　　者：陈栋[1] Chen Dong(Nanjing Vocational College of Information Technology,Nanjing 210023,China)

机构地区：[1]南京信息职业技术学院,南京210023

出　　处：《太阳能》2024年第8期112-117,共6页Solar Energy

基　　金：南京信息职业技术学院自然科研基金项目(青年教师专项重点)(YK20170701);国家级职业教育教师教学创新团队课题研究项目(YB2020080102)。

摘　　要：针对光伏组件单二极管模型的非线性隐式超越方程特性,提出了一种改进的曲线拟合算法,通过调整模型中二极管反向饱和电流的求解形式,并应用高斯-牛顿法进行参数迭代,有效提升了模型的仿真精度和计算速度。通过与经典算例的结果对比分析,验证了所提出的算法在提高仿真精度和改善收敛性方面的显著优势,为光伏发电系统设计和性能评估提供了有力的技术支持。In response to the characteristics of the nonlinear implicit transcendental equation in the single-diode model of PV modules,this paper proposes an improved curve fitting algorithm.By adjusting the solution form of the reverse saturation current of the diode in the model and applying the Gauss-Newton method for parameter iteration,the simulation accuracy and computational speed of the model are effectively enhanced.Through comparative analysis with classic example results,the advantages of the proposed algorithm in improving simulation accuracy and convergence are significantly verified,providing strong technical support for the design and performance evaluation of PV power generation systems.

关 键 词：光伏组件 单二极管模型 曲线拟合算法 二极管反向饱和电流 

分 类 号：TM615[电气工程—电力系统及自动化]