复杂关照环境下光伏阵列MPPT算法  

PV Array's MPPT Algorithm Under Complicated Illumination Environment

作　　者：吴小进[1] 魏学业[1] 于蓉蓉[1] 韩磊[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《四川大学学报（工程科学版）》2012年第1期132-138,共7页Journal of Sichuan University (Engineering Science Edition)

基　　金：中央高校基本科研业务费专项资金资助项目(2009YJS014)

摘　　要：针对传统最大功率点跟踪(Maximum Power Point Tracking,MPPT)算法难以满足复杂光照环境下光伏阵列最大功率点跟踪的问题,提出了一种多重区间最大功率点跟踪算法。通过对复杂光照环境下光伏阵列的输出特性进行理论推导以及仿真建模,总结了峰值功率点的分布特性,将输出电压划分为若干个独立区间,在各独立区间内采用相应的方法跟踪峰值功率,最终得到阵列的最大输出功率。仿真结果表明,该算法能够快速、准确地跟踪复杂光照环境下光伏阵列的最大输出功率。To solve the problem that the traditional MPPT（Maximum Power Point Tracking） algorithms are difficult to track the maximum power of PV array under complicated illumination environment,a multi-interval MPPT algorithm was proposed.Distribution rules of peak power points were concluded based on the theoretical derivation and simulation model of the output characteristics of PV arrays under complicated illumination environment,and the output voltage was divided into several independent intervals.The maximum power was ultimately achieved by tracking the peak power points in the independent intervals with corresponding methods.Simulation results verified that the proposed algorithm could rapidly and accurately track the maximum power of PV arrays under complicated illumination environment.

关 键 词：光伏 最大功率点跟踪 复杂光照环境 输出特性 

分 类 号：TM914.4[电气工程—电力电子与电力传动]