电网技术Issue(11)：3086-3090,5.
光伏组件精确工程模型及MPP电压范围研究
Accurate Engineering Model of PV Module and Voltage Range at Maximum Power Point of Grid-Connected PV Inverter
王冰清 1曾国宏 1童亦斌 1张勇波1
作者信息
- 1. 北京交通大学 电气工程学院，北京市 海淀区 100044
- 折叠
摘要
Abstract
The research on output characteristics of photovoltaic (PV) module is the foundation to determine the voltage range at maximum power point (MPP) of grid-connected PV inverter. The mathematical model of PV module is of high accuracy, however considering such disadvantages of the mathematical model such as concerning in transcendental equation, complex solving process and too much input parameters, it is not suitable for engineering design; the calculation of simplified model of PV module is simple, however by which the output characteristics of PV module under low light condition cannot be accurately described. Based on contrastive analysis on the mathematical model and simplified model, an accurate engineering model of PV module, which is benchmarked in the mathematical model, is proposed. The compensation parameters of the simplified model is fitted and modified, meanwhile both accuracy and complexity of engineering model are taken into account. The MathCad program is utilized to built the simulation model of PV module, and the output results of the simulation model is contrasted with the output of the mathematical model to verify the accuracy of accurate engineering model. Based on the proposed engineering model, through analyzing the impacts of external conditions such as illumination, temperature and so on, the voltage range traced at MPP of grid-connected PV inverter can be accurately determined, and the correctness of this conclusion is validated by experimental results.关键词
光伏组件/精确工程模型/数学模型/简化模型/最大功率点Key words
photovoltaic (PV) model/accurate engineering model/mathematic model/simplified model/maximum power point (MPP)分类
信息技术与安全科学引用本文复制引用
王冰清,曾国宏,童亦斌,张勇波..光伏组件精确工程模型及MPP电压范围研究[J].电网技术,2013,(11):3086-3090,5.
