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

• Published in: Energies (Basel) Vol. 17; no. 1; p. 250
• Main Authors: Pirashanthiyah, L., Edirisinghe, H. N., De Silva, W. M. P., Bolonne, S. R. A., Logeeshan, V., Wanigasekara, C.
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01-01-2024
• Subjects: Alternative energy sources; Analysis; Batteries; Design; Efficiency; Energy consumption; Energy industry; Energy management systems; Energy storage; fuzzy logic controller; Investigations; lithium-ion battery; MPPT controller; Renewable resources; Simulation; Solar energy; three-phase interleaved boost converter
• ISSN: 1996-1073; 1996-1073
• DOI: 10.3390/en17010250

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.