Design and Analysis of a Three-Phase Interleaved DC-DC Boost Converter with an Energy Storage System for a PV System

L. Pirashanthiyah, H. N. Edirisinghe, W. M. P. De Silva, S. R. A. Bolonne, V. Logeeshan () and C. Wanigasekara ()
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L. Pirashanthiyah: Department of Electrical Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
H. N. Edirisinghe: Department of Electrical Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
W. M. P. De Silva: Department of Electrical Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
S. R. A. Bolonne: Department of Electrical Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
V. Logeeshan: Department of Electrical Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
C. Wanigasekara: Institute for the Protection of Maritime Infrastructures, German Aerospace Center (DLR), 27572 Bremerhaven, Germany

Energies, 2024, vol. 17, issue 1, 1-14

Abstract: This paper describes a groundbreaking design of a three-phase interleaved boost converter for PV systems, leveraging parallel-connected conventional boost converters to reduce input current and output voltage ripple while improving the dynamic performance. A distinctive feature of this study is the direct connection of a Li-Ion battery to the DC link, which eliminates the need for an additional charging circuit, which is a departure from conventional approaches. Furthermore, the combination of an MPPT controller and a closed-loop fuzzy controller with a current control mode ensures accurate switching signal generation for all three phases. The meticulously tuned system exhibits a remarkably low ripple content in the output voltage, surpassing calculated values, and demonstrates a superior dynamic performance. The investigation extends to a comprehensive analysis of losses, encompassing inductor copper loss and semiconductor conduction loss. In all scenarios, the converter exhibits an efficiency exceeding 93%, highlighting its robust performance as an effective solution for PV systems.

Keywords: three-phase interleaved boost converter; fuzzy logic controller; MPPT controller; lithium-ion battery (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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