Soft-Switching Three-Port Converter with a Three-Winding Coupled Inductor

Tsorng Juu Liang; Thai Anh Au Tran; Kim Kien Nghiep Huynh; Kai Hui Chen

doi:10.1109/JESTPE.2023.3304308

Soft-Switching Three-Port Converter with a Three-Winding Coupled Inductor

Tsorng Juu Liang, Thai Anh Au Tran, Kim Kien Nghiep Huynh, Kai Hui Chen

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In this article, a nonisolated soft-switching three-port converter (TPC) is proposed for renewable energy systems (RES). Only one coupled inductor is used for regulating five different power flows among the three ports to improve the voltage gain. By cascoding photovoltaic (PV) and battery modules, the input current is reduced, enabling the proposed converter to operate at a reasonable duty cycle and achieve higher efficiency. In addition, utilizing only one active clamp circuit in all power flows, the leakage inductor energy can be recycled, and the main switches can achieve zero voltage switching (ZVS), resulting in low-voltage spike and high efficiency in all power flow stages. Operating principles and steady-state analyses of the proposed TPC are presented, and the design of key parameters is then discussed in detail. Finally, a 300 W-400 V converter prototype is implemented in the laboratory to verify the theoretical analyses.

Original language	English
Pages (from-to)	5470-5485
Number of pages	16
Journal	IEEE Journal of Emerging and Selected Topics in Power Electronics
Volume	11
Issue number	5
DOIs	https://doi.org/10.1109/JESTPE.2023.3304308
Publication status	Published - 2023 Oct 1

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/JESTPE.2023.3304308

Cite this

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title = "Soft-Switching Three-Port Converter with a Three-Winding Coupled Inductor",

abstract = "In this article, a nonisolated soft-switching three-port converter (TPC) is proposed for renewable energy systems (RES). Only one coupled inductor is used for regulating five different power flows among the three ports to improve the voltage gain. By cascoding photovoltaic (PV) and battery modules, the input current is reduced, enabling the proposed converter to operate at a reasonable duty cycle and achieve higher efficiency. In addition, utilizing only one active clamp circuit in all power flows, the leakage inductor energy can be recycled, and the main switches can achieve zero voltage switching (ZVS), resulting in low-voltage spike and high efficiency in all power flow stages. Operating principles and steady-state analyses of the proposed TPC are presented, and the design of key parameters is then discussed in detail. Finally, a 300 W-400 V converter prototype is implemented in the laboratory to verify the theoretical analyses.",

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AU - Liang, Tsorng Juu

AU - Tran, Thai Anh Au

AU - Huynh, Kim Kien Nghiep

AU - Chen, Kai Hui

PY - 2023/10/1

Y1 - 2023/10/1

N2 - In this article, a nonisolated soft-switching three-port converter (TPC) is proposed for renewable energy systems (RES). Only one coupled inductor is used for regulating five different power flows among the three ports to improve the voltage gain. By cascoding photovoltaic (PV) and battery modules, the input current is reduced, enabling the proposed converter to operate at a reasonable duty cycle and achieve higher efficiency. In addition, utilizing only one active clamp circuit in all power flows, the leakage inductor energy can be recycled, and the main switches can achieve zero voltage switching (ZVS), resulting in low-voltage spike and high efficiency in all power flow stages. Operating principles and steady-state analyses of the proposed TPC are presented, and the design of key parameters is then discussed in detail. Finally, a 300 W-400 V converter prototype is implemented in the laboratory to verify the theoretical analyses.

AB - In this article, a nonisolated soft-switching three-port converter (TPC) is proposed for renewable energy systems (RES). Only one coupled inductor is used for regulating five different power flows among the three ports to improve the voltage gain. By cascoding photovoltaic (PV) and battery modules, the input current is reduced, enabling the proposed converter to operate at a reasonable duty cycle and achieve higher efficiency. In addition, utilizing only one active clamp circuit in all power flows, the leakage inductor energy can be recycled, and the main switches can achieve zero voltage switching (ZVS), resulting in low-voltage spike and high efficiency in all power flow stages. Operating principles and steady-state analyses of the proposed TPC are presented, and the design of key parameters is then discussed in detail. Finally, a 300 W-400 V converter prototype is implemented in the laboratory to verify the theoretical analyses.

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Soft-Switching Three-Port Converter with a Three-Winding Coupled Inductor

Abstract

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UN SDGs

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