An Improved PSO-based MPPT Technique Using Stability and Steady State Analyses Under Partial Shading Conditions

Reza Sangrody, Shamsodin Taheri, Edris Pouresmaeil, Ana-Maria Cretu

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
26 Downloads (Pure)

Abstract

Partial shading (PS) conditions create challenging issues for the maximum power point tracking (MPPT) algorithms in photovoltaic (PV) systems such as getting stuck in the local maximum power points (LMPP), slow tracking time and fluctuations in the generated power during tracking the global maximum power point (GMPP). To address these issues, this paper brings contributions by proposing an improved PSO-based MPPT technique tailored for PS conditions. First, to highlight the weakness of the traditional PSO-MPPT technique, its stability and steady state behavior in the PS conditions is analyzed in depth. Second, the required criteria to achieve a stable response are obtained. Finally, a novel technique to estimate the convex area of the power versus voltage (P-V) curve is presented where the GMPP is located using two voltage boundaries. The performance of the proposed MPPT technique is experimentally validated. The results highlight the capabilities of the proposed technique in finding the GMPP with a rapid convergence and small fluctuations. The proposed MPPT is applicable to most PV inverters under any PS conditions.
Original languageEnglish
Pages (from-to)136-145
Number of pages10
JournalIEEE Transactions on Sustainable Energy
Volume15
Issue number1
Early online date10 May 2023
DOIs
Publication statusPublished - 2023
MoE publication typeA1 Journal article-refereed

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