photovoltaic module physical model model buildings mathemati

  本文关键词：改进的光伏组件工程数学模型建模方法，由笔耕文化传播整理发布。

改进的光伏组件工程数学模型建模方法

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]合肥工业大学电气工程与自动化学院.安徽合肥230009; [2]安徽建筑大学智能建筑重点实验室,安徽合肥230601

文章摘要：针对现有光伏组件工程数学模型曲线拟合误差较大的问题,首先基于光伏电池的物理模型推导开路电压和最大功率点电压与辐照度之间的函数关系,改进不同工况下建模参数获取的方法,提高模型在关键信息点的建模精度;然后通过分析现有工程数学模型的建模过程,发现现有工程模型建模参数选择方法的不足,结合等效串联电阻对最大功率点电压的影响,提出建模参数选择方法的改进措施,最终建立以电压为输出的改进光伏组件工程数学模型。试验与仿真分析表明,改进的工程数学模型极大地提高了工程数学模型的曲线拟合精度,对不同类型组件均具有较高的建模精度。

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.

文章关键词：

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

课题项目：安徽省科技攻关重点项目（1201a0201004）; 安徽高校省级自然科学研究项目（KJ2013B054）

  本文关键词：改进的光伏组件工程数学模型建模方法，由笔耕文化传播整理发布。