Research on MPPT Control of Partially Shaded Photovoltaic Array Based on Differential Evolution Algorithm

doi:10.11930/j.issn.10.11930.2015.6.39

Abstract

Abstract: When PV module is partially shaded, there will be multi peeks in the power-voltage(P-V) characteristic curve. And conventional maximum power point tracking (MPPT) algorithm, such as perturbation and observation(P&O), cannot accurately track global maximum power point(GMPP) due to its local searching area. This paper proposes a differential evolution(DE) based GMPP tracking algorithm which makes all particles converging to the best solution by modifying the direction of mutation. This helps the algorithm to converge rapidly. Simulation of the proposed algorithm is carried out in Matlab/Simulink and is compared to P&O algorithm.

Key words: photovoltaic array, partially shaded, differential evolution algorithm, maximum power point tracking (MPPT), global maximum power point (GMPP)

CLC Number:

TM614

LIN Qirong, WANG Qiaoqiao, LIN Qiwei, LIN Lin, Dong Chenhui, LIU Hongxia. Research on MPPT Control of Partially Shaded Photovoltaic Array Based on Differential Evolution Algorithm[J]. Electric Power, 2015, 48(6): 39-44.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.6.39

https://www.electricpower.com.cn/EN/Y2015/V48/I6/39

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