基于差分进化的光伏MPPT算法改进  

AN IMPROVED PHOTOVOLTAIC MPPT ALGORITHM BASED ON DIFFERENTIAL EVOLUTION ALGORITHM

作　　者：刘宜罡 邹应全[1] 张晓强[1] 任光超 闫飞[1] Liu Yigang;Zou Yingquan;Zhang Xiaoqiang;Ren Guangchao;Yan Fei(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学信息科学与技术学院,成都610031

出　　处：《太阳能学报》2020年第6期264-271,共8页Acta Energiae Solaris Sinica

摘　　要：基于差分进化(DE)算法提出一种改进的最大功率追踪(MPPT)算法。针对DE算法MPPT时收敛较慢且追踪过程中会产生较大的尖峰电压和振铃的问题,该文采用新的差分策略并增加种群个体排序,提出一种差分进化和扰动观察法(P&O)相结合的OMDE-P&O算法。首先通过OMDE算法快速达到最大功率对应的电压附近,然后通过P&O算法快速稳定到最大功率点。通过Matlab仿真及硬件实验,验证该算法的可行性。Based on the differential evolution(DE)algorithm,an improved maximum power point tracking algorithm(MPPT)is proposed.For these problems that the convergence of the DE algorithm is slow and the high peak voltage and ringing are generated during the tracking process,adopting the new difference strategy and the rank order of individuals,an OMDE-P&O algorithm combined the DE algorithm with perturbation-observation method(P&O)is proposed.First,the Maximum power corresponding voltage is roughly reached by the OMDE algorithm.Then,by using P&O algorithm,the system is rapidly stabilized at the maximum power point.Based on Matlab simulation and hardware experiment,the feasibility of the improved algorithm is verified.

关 键 词：最大功率跟踪算法 光伏阵列 差分进化算法 扰动观察法 个体排序 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]