Efficiency Optimization in Multi-Branch Converters through Dynamic Control

Marek Pavlík, Matej Bereš (), Dobroslav Kováč, Tibor Vince, Irena Kováčová and Ján Molnár
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Marek Pavlík: Department of Electric Power Engineering, Technical University of Košice, Letná 1/9, Košice-Sever, 042 00 Košice, Slovakia
Matej Bereš: Department of Theoretical and Industrial Electrical Engineering, Technical University of Košice, Letná 1/9, Košice-Sever, 042 00 Košice, Slovakia
Dobroslav Kováč: Department of Theoretical and Industrial Electrical Engineering, Technical University of Košice, Letná 1/9, Košice-Sever, 042 00 Košice, Slovakia
Tibor Vince: Department of Theoretical and Industrial Electrical Engineering, Technical University of Košice, Letná 1/9, Košice-Sever, 042 00 Košice, Slovakia
Irena Kováčová: Department of Theoretical and Industrial Electrical Engineering, Technical University of Košice, Letná 1/9, Košice-Sever, 042 00 Košice, Slovakia
Ján Molnár: Department of Theoretical and Industrial Electrical Engineering, Technical University of Košice, Letná 1/9, Košice-Sever, 042 00 Košice, Slovakia

Sustainability, 2023, vol. 15, issue 22, 1-25

Abstract: As the global emphasis on solar energy intensifies, optimizing the efficiency of photovoltaic panels becomes crucial in meeting energy demands sustainably. Addressing this, our research delves deeply into advancing maximum power point tracking (MPPT), a pivotal component in perfecting the energy conversion process. Leveraging state-of-the-art mathematical modeling, in-depth simulations, and comprehensive experimental validation, we set out to markedly refine the performance of non-isolated multi-branch buck DC–DC converters. In this pursuit, we introduce an innovative algorithm meticulously designed to adjust the number of active branches. This adjustment is rooted in robust efficiency metrics, ensuring optimal power delivery even under dynamic and fluctuating conditions. We place a distinct emphasis on the transformative role of current in determining converter efficiency. Drawing from our findings, we advocate for an adaptive control strategy, precisely engineered to thrive in a spectrum of operational contexts. With this study, we not only present pivotal contributions to the domain of photovoltaic technology but also chart out clear expectations for future endeavors. Our hope is that these advancements serve as foundational steps, guiding the evolution of sustainable energy generation.

Keywords: photovoltaic panel; converter for photovoltaic; multi-branch converter; MPP tracking; sustainability; efficiency enhancement (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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