Design and Implementation of a Low-Voltage Photovoltaic System Integrated with Battery Energy Storage

Xiao He, Seiji Hashimoto (), Wei Jiang, Jicheng Liu and Takahiro Kawaguchi
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Xiao He: Division of Electronic and Informatics, Gunma University, Kiryu 376-8515, Japan
Seiji Hashimoto: Division of Electronic and Informatics, Gunma University, Kiryu 376-8515, Japan
Wei Jiang: Department of Electronic Engineering, Yangzhou University, Yangzhou 225127, China
Jicheng Liu: School of Electrical Engineering and Automation, Changshu Institute of Technology, Suzhou 215506, China
Takahiro Kawaguchi: Division of Electronic and Informatics, Gunma University, Kiryu 376-8515, Japan

Energies, 2023, vol. 16, issue 7, 1-20

Abstract: In this paper, the simulation and design of a power converter suitable for a low-voltage photovoltaic (PV) battery energy storage converter was investigated. The converter was suitable for sources and loads with near voltage levels and were aimed at efficiency improvement. The converter was called a series partial power converter (SPPC). A continuous current and a boost SPPC topology based on an isolated Cûk converter was constructed. The operation modes of the converter were analyzed. The efficiency verification test of the SPPC in a laboratory environment was completed using an outdoor start-up test, a photovoltaic full cover test and a steady-state operation test under different power levels. The results show that the SPPC can achieve 95–98% converter efficiency within the 87 W–242 W power range. The incremental conductance method based on the SPPC can realize the dynamic MPPT under constant illumination and changing meteorological conditions.

Keywords: series partial power converter; maximum power point tracking; converter efficiency (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: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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