本文關鍵詞：改進的光伏組件工程數(shù)學模型建模方法，由筆耕文化傳播整理發(fā)布。

改進的光伏組件工程數(shù)學模型建模方法

Improved method to build mathematic engineering model of photovoltaic module

[1] [2]

LI Shanshou;ZHANG Xing（ 1. School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009,China; 2. Key Laboratory of Intelligent Building,Anhui

[1]合肥工業(yè)大學電氣工程與自動化學院.安徽合肥230009; [2]安徽建筑大學智能建筑重點實驗室,安徽合肥230601

文章摘要：針對現(xiàn)有光伏組件工程數(shù)學模型曲線擬合誤差較大的問題,首先基于光伏電池的物理模型推導開路電壓和最大功率點電壓與輻照度之間的函數(shù)關系,改進不同工況下建模參數(shù)獲取的方法,提高模型在關鍵信息點的建模精度;然后通過分析現(xiàn)有工程數(shù)學模型的建模過程,發(fā)現(xiàn)現(xiàn)有工程模型建模參數(shù)選擇方法的不足,結合等效串聯(lián)電阻對最大功率點電壓的影響,提出建模參數(shù)選擇方法的改進措施,最終建立以電壓為輸出的改進光伏組件工程數(shù)學模型。試驗與仿真分析表明,改進的工程數(shù)學模型極大地提高了工程數(shù)學模型的曲線擬合精度,對不同類型組件均具有較高的建模精度。

Abstr：Aiming at the larger curve fitting error of traditional mathematic engineering model of photovoltaic module,the functional relationship between the open-circuit voltage and the irradiance as well as that between the maximum power point voltage and the irradiance are derived based on the physical model of photovoltaic cell to improve the method of modelling parameter acquisition under different operational conditions and the modelling accuracy at key information points. The establishment process of traditional mathematic engineering model is analyzed and its deficiency in the parameter selection is detected. A countermeasure is proposed according to the impact of equivalent series resistance on the maximum power point voltage and an improved mathematic engineering model of photovoltaic module is established,which takes the voltage as its output. Experiment and simulation show that,the proposed modelling method improves the curve fitting precision greatly and has higher modelling accuracy for different types of photovoltaic module.

文章關鍵詞：

Keyword：:photovoltaic module physical model model buildings mathematic engineering model photovoltaic cells errors

課題項目：安徽省科技攻關重點項目（1201a0201004）; 安徽高校省級自然科學研究項目（KJ2013B054）

  本文關鍵詞：改進的光伏組件工程數(shù)學模型建模方法，由筆耕文化傳播整理發(fā)布。