电力系统保护与控制Issue(2)：48-54,7.
光伏分布式MPPT机理分析与仿真研究
Photovoltaic distributed MPPT mechanism analysis and simulation study
孙航 1杜海江 1季迎旭 1杨博1
作者信息
- 1. 中国农业大学信息与电气工程学院，北京 100083
- 折叠
摘要
Abstract
The simulation circuit of PV arrays can be complex or even features low accuracy, due to the series or parallel connection of photovoltaic cells that are usually modeled by conventional models. In this paper, the PV arrays modeling methods are divided into two categories, namely, calculation method and look-up table method. The calculation method easily falls into convergence, yet needs definite PV output voltage and current equation. The look-up table method is more flexible as the modeling of PV array only requires current and voltage data. A look-up table method is proposed to verify the correctness of modeling PV arrays in a solar power converter. In this process, a few key problems are solved. According to the proposed model and the impedance analysis results, the mechanisms of distributed maximum power point tracking (MPPT) of single, series, and multiple PV arrays are investigated and the corresponding equations are obtained. Calculation cases of corresponding configurations are simulated and the results are compared with that of centralized MPPT, which provides solid theoretical foundations for improving the efficiency of PV arrays.关键词
光伏模型/计算法/查表法/最大功率Key words
photovoltaic model/calculation method/look-up table method/maximum power point tracking (MPPT)分类
信息技术与安全科学引用本文复制引用
孙航,杜海江,季迎旭,杨博..光伏分布式MPPT机理分析与仿真研究[J].电力系统保护与控制,2015,(2):48-54,7.
