基于IPSO算法的光伏阵列多峰值MPPT研究

doi:10.11985/2016.10.009

电气工程学报 ›› 2016, Vol. 11 ›› Issue (10): 53-58.doi: 10.11985/2016.10.009

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基于IPSO算法的光伏阵列多峰值MPPT研究

王凯丽,张巧杰

北京信息科技大学自动化学院北京 100192

收稿日期:2016-05-31 出版日期:2016-10-25 发布日期:2020-04-30
作者简介:王凯丽, 女 1989年生,硕士研究生,研究方向为电力电子与电力传动。|张巧杰, 女 1978年生,博士,硕士生导师,主要从事新能源发电技术、电力电子与电力传动等方面的研究。
基金资助:
国家自然科学基金项目(51477011);北京市自然科学基金重点项目(KZ201511232035);北京市自然科学基金重点项目(KZ201511232035);促进高校内涵发展—研究生科技创新项目—2016年自动化学院研究生科技创新项目资助(5111623313)

Research on Multi-Peak MPPT of Photovoltaic Array Based on IPSO Algorithm

Kaili Wang,Qiaojie Zhang

Beijing Information Science and Technology University Beijing 100192 China

Received:2016-05-31 Online:2016-10-25 Published:2020-04-30

摘要/Abstract

摘要：

粒子群优化（PSO）算法是智能算法的一种,有较好的全局搜索能力,已经被应用于局部阴影条件下的最大功率跟踪（MPPT）当中。但PSO算法的搜索速度慢,收敛不稳定。本文通过分析局部阴影条件下光伏阵列的输出特性曲线提出了改进型粒子群优化算法（IPSO）,以变换器的占空比为粒子,初始化时将粒子均匀分散在可能的功率峰值点处,依据迭代次数线性调整惯性权重、学习因子,并通过引入反正切函数,对传统PSO算法的速度更新进行修改,以减小追踪过程的振荡,更快地找到最大功率点,提高收敛速度。最后通过仿真验证了与常规的PSO算法相比,改进的PSO算法具有跟踪速度快、动态响应波动小等特点。

关键词: 局部阴影, PSO算法, MPPT, 光伏阵列

Abstract:

Particle swarm optimization (PSO) is a kind of intelligent algorithm and has been used in MPPT for a PV array because it has better global search capability, but the tracking speed of PSO algorithm is slow and unstable convergence. The improved PSO algorithm is proposed in this paper according to PV array output characteristics curve analysis which is under condition of partial shaded. The duty ratio of converter is defined as particle, the particles are uniformly distributed at the possible peaks during initialization.The inertia weight and learning factors are adjusted according to the number of iterations, and the velocity updating formula of traditional PSO algorithm is modified through introduced the inverse tangent function to restrict the speed of each particle separately, so that the maximum power point could be found quickly to improve the convergence speed. Finally the simulation results verify that compared with the conventional PSO algorithm, IPSO algorithm has the advantaged of tracking fast and small fluctuations in the tracking process.

Key words: Partial shade, PSO algorithm, MPPT, photovoltaic array

中图分类号:

TM615

王凯丽,张巧杰. 基于IPSO算法的光伏阵列多峰值MPPT研究[J]. 电气工程学报, 2016, 11(10): 53-58.

Kaili Wang,Qiaojie Zhang. Research on Multi-Peak MPPT of Photovoltaic Array Based on IPSO Algorithm[J]. Journal of Electrical Engineering, 2016, 11(10): 53-58.

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参考文献 11

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模式	组件1A	组件1B	组件1C	组件2A	组件2B	组件2C
模式	光照强度/(W/m²)
模式1	1 000	400	200	1 000	800	600
模式2	1 000	400	200	1 000	1 000	1 000
模式3	1 000	1 000	200	1 000	1 000	1 000
模式4	1 000	1 000	1 000	1 000	1 000	1 000

参数	取值	参数	取值
粒子个数	3	w_max	1
占空比最小值	0.1	w_min	0.1
占空比最大值	0.9	c_1min	2
采样时间	0.04	c_1max	1
迭代次数	30	c_2min	2
收敛条件ε	0.002	c_2max	1

基于IPSO算法的光伏阵列多峰值MPPT研究

Research on Multi-Peak MPPT of Photovoltaic Array Based on IPSO Algorithm

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