Design of a Three-Input, Single-Output DC–DC Converter for Electric Charging Station

Sivaram Natarajan Vijayanathan, Lavanya Anbazhagan (), Jagabar Sathik Mohamed Ali, Divya Navamani Jayachandran, Pradeep Vishnuram, CH. Naga Sai Kalyan (), Mustafa Abdullah and Rajkumar Singh Rathore
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Sivaram Natarajan Vijayanathan: Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India
Lavanya Anbazhagan: Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India
Jagabar Sathik Mohamed Ali: Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India
Divya Navamani Jayachandran: Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India
Pradeep Vishnuram: Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India
CH. Naga Sai Kalyan: Department of Electrical and Electronics Engineering, Vasireddy Venkatadri Institute of Technology, Guntur 522508, India
Mustafa Abdullah: Electric Vehicles Engineering Department, Faculty of Engineering, Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, Amman 19111, Jordan
Rajkumar Singh Rathore: Cardiff School of Technologies, Cardiff Metropolitan University, Cardiff CF5 2YB, UK

Energies, 2025, vol. 18, issue 4, 1-24

Abstract: This article presents a novel four-port DC–DC converter designed to integrate photovoltaics, fuel cells, and supercapacitors with one DC charging single-output port with a reduced component count. The proposed converter ensures an efficient power management strategy to manage the load power demand and optimize the power flow from the sources. The power management controller helps enhance the performance of the system by dynamically prioritizing the sources based on their availability and the demand of the load. A comprehensive reliability analysis is conducted to measure the converter’s robustness under varying load conditions, proving its suitability for real-world applications. The proposed topology’s performance was validated in three different scenarios for 1 kW using a simulation tool, and experiments in the laboratory were conducted. The failure rate and efficiency of the system are analyzed, and the converter promises a 96.5% efficiency for 1 kW and a failure rate of 4.6216 × 10 6 failures per hour. The simulation and experimental results validate the converter’s performance, highlighting its superior efficiency, reliability, and scalability.

Keywords: multiport converter; reliability; energy management (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: 2025
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