基于CPA和FSCC的自适应扰动观察法在MPPT中的应用

针对定步长扰动观察法存在的不足,提出一种基于局部短路电流启动的自适应变步长最大功率跟踪方法。该方法将电流扰动(CPA)和局部短路电流(FSCC)结合,利用自适应扰动法调整扰动步长;同时在恒压启动时,引入温度调整系数,计算最大功率点补偿值,从而应对外界环境的迅速变化。文中于MATLAB/simulink建立起80W光伏发电系统模型,与传统最大功率跟踪方法进行对比实验。实验结果表明:所提出的最大功率跟踪方法使系统具有很好的静、动态性能。...

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Bibliographic Details
Published in电测与仪表 Vol. 54; no. 22; pp. 111 - 115
Main Author 李永刚;于德水;周一辰;庞春江;霍明霞
Format Journal Article
LanguageChinese
Published 华北电力大学,河北保定,071003%河南省济源供电公司,河南济源,459000 2017
Subjects
CPA;FSCC;变步长自适应;温度调整系数;最大功率点跟踪
温度调整系数
MPPT
CPA
variable step size adaptive
temperature adjustment coefficient
变步长自适应
FSCC
最大功率点跟踪
Online AccessGet full text
ISSN1001-1390

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Summary:针对定步长扰动观察法存在的不足,提出一种基于局部短路电流启动的自适应变步长最大功率跟踪方法。该方法将电流扰动(CPA)和局部短路电流(FSCC)结合,利用自适应扰动法调整扰动步长;同时在恒压启动时,引入温度调整系数,计算最大功率点补偿值,从而应对外界环境的迅速变化。文中于MATLAB/simulink建立起80W光伏发电系统模型,与传统最大功率跟踪方法进行对比实验。实验结果表明:所提出的最大功率跟踪方法使系统具有很好的静、动态性能。
Bibliography:CPA; FSCC; variable step size adaptive; temperature adjustment coefficient; MPPT
In order to improve the current fast tracking ability,an adaptive variable step size maximum power tracking method based on the FSCC is proposed in this paper to overcome the shortcoming of the fixed step perturbation observation method.This method combines the current perturbation(CPA)with the fractional short circuit current(FSCC)and adjusts the perturbation step by the adaptive perturbation method.At the same time,the temperature adjustment coefficient is introduced to calculate the maximum power point compensation value for the rapid changes.In this paper,a80W photovoltaic power generation system model is established in MATLAB/simulink,and compared with the traditional maximum power tracking method.The experimental results show that the proposed maximum power tracking method gives the system good static and dynamic performance.
23-1202/TH
ISSN:1001-1390