基于GWO算法光伏阵列多峰值的MPPT

吉林大学学报(理学版) ›› 2018, Vol. 56 ›› Issue (6): 1526-1532.

基于GWO算法光伏阵列多峰值的MPPT

张巧杰^1, 王凯丽^1, 房雪晴^2

1. 北京信息科技大学自动化学院, 北京 100192； 2. 天津大学材料科学与工程学院, 天津 300350

收稿日期:2018-03-27 出版日期:2018-11-26 发布日期:2018-11-27
通讯作者: 张巧杰 E-mail:qiaojiezhang@163.com

Multi-peak MPPT of Photovoltaic ArrayBased on GWO Algorithm#br#

ZHANG Qiaojie¹, WANG Kaili¹, FANG Xueqing²

1. College of Automation, Beijing Information Science and Technology University, Beijing 100192, China；2. School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China

Received:2018-03-27 Online:2018-11-26 Published:2018-11-27

摘要/Abstract

摘要： 针对因遮挡处于部分阴影条件下的光伏阵列, 其功率特性曲线由单峰曲线变为叠峰曲线, 使最大功率点跟踪(MPPT)算法失效, 而其他智能算法(如粒子群优化(PSO)算法)存在参数较多、收敛速度慢、振荡幅度大等问题, 将收敛速度快、求解精度高的灰狼优化(GWO)算法应用于光伏阵列多峰值MPPT算法中. 先建立处于局部遮挡情形下光伏阵列的数学模型, 再解析基于GWO算法的MPPT算法原理. 仿真实验结果表明: GWO算法可快速跟踪到最大功率点; GWO算法比PSO算法的跟踪速度提高1倍, 跟踪效率提高0.1%.

关键词: 灰狼优化算法, 最大功率点跟踪, 部分阴影, 光伏阵列

Abstract: The maximum power point tracking (MPPT) algorithm was invalid because the power characteristic curve of the photovoltaic array under partial shading condition was changed from a single peak curve to an overlapping peak curve, and other intelligent algorithms (such as particle swarm optimization (PSO) algorithm) had the disadvantages of more parameters, slow convergence speed and large amplitude of oscillation in the tracking process. The grey wolf optimization (GWO) algorithm with fast convergence speed and high precision was applied to multipeak MPPT algorithm of photovoltaic array. Firstly, a mathem
atical model of photovoltaic array under partial occlusion was established. Secondly, the principle of MPPT algorithm based on GWO algorithm was analyzed. Simulation results show that the GWO algorithm can track the maximum power point quickly, the tracking speed of the GWO algorithm is 1 times higher than that of the PSO algorithm, and the tracking efficiency is improved by 0.1%.

Key words: grey wolf optimization (GWO) algorithm, maximum power , point tracking (MPPT), partial shadow, photovoltaic array

中图分类号:

TN02

张巧杰, 王凯丽, 房雪晴. 基于GWO算法光伏阵列多峰值的MPPT[J]. 吉林大学学报(理学版), 2018, 56(6): 1526-1532.

ZHANG Qiaojie, WANG Kaili, FANG Xueqing. Multi-peak MPPT of Photovoltaic ArrayBased on GWO Algorithm#br#[J]. Journal of Jilin University Science Edition, 2018, 56(6): 1526-1532.