基于模糊算法的变步长电导增量法仿真研究

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英文篇名：Simulation Study of Variable Step Size Incremental Conductance Based on Fuzzy Algorithm 作者：李皓 ; 陈超波 ; 高嵩 ; 李进 ; 李继超 英文作者：LI Hao;CHEN Chao-bo;GAO Song;LI Jin;LI Ji-chao;College of Electronics and Information Engineering,Xi'an Technological University; 关键词：电导增量法 ; 模糊控制 ; 变步长 ; Boost升压电路 ; 仿真 英文关键词：incremental conductance;;fuzzy logic control;;variable step size;;boost circuit;;simulation 中文刊名：ZDHY 英文刊名：Automation & Instrumentation 机构：西安工业大学电子信息工程学院; 出版日期：2019-01-15 出版单位：自动化与仪表 年：2019 期：v.34;No.250 基金：国家重点研发计划项目(2016YFE0111900);; 西安工业大学校长基金项目(XAGDXJJ18011) 语种：中文; 页：ZDHY201901020 页数：5 CN：01 ISSN：12-1148/TP 分类号：89-93

摘要

对于经典的最大功率点追踪算法,步长大小的设置使光伏发电系统最大功率追踪的速度和稳定状态下运行的稳定性存在矛盾。针对此问题,该文在基于Boost升压电路基础上设计了一套最大功率点追踪系统,采用了模糊算法对变步长的电导增量法进行改进,利用电导变化率与最大功率点电导之间的大小关系通过模糊算法调节步长。并在Matlab/Simulink环境下搭建了仿真模型,仿真结果表明,此系统能有效地提高最大功率点追踪的速度,减小稳定运行状态下系统的震荡问题。
        For the classic maximum power point tracking algorithm,the step size setting contradicts the speed of the maximum power tracking of the photovoltaic system and the stability of the operation under steady state conditions.Aiming at this problem,this paper designs a set of maximum power point tracking system based on boost circuit,and uses fuzzy algorithm to improve the variable step size incremental conductance method,using the conductance change rate and the maximum power point conductance. The size relationship is adjusted by the blur algorithm. The simulation model is built in the matlab/simulink environment. The simulation results show that the system can effectively improve the speed of maximum power point tracking and reduce the oscillation of the system under stable operating conditions.

引文

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