A hybrid fast-charging station for electric vehicles integrating cascaded interleaved AC–DC converter, renewable energy sources, and battery storage

Bader N. Alajmi, Ibrahim Abdelsalam, Nabil A. Ahmed

Abstract


Abstract: This paper presents the design of a hybrid fast-charging station for electric vehicles (EVs). It integrates a photovoltaic (PV) generation system, a battery energy storage (BESS) system, and a two-stage non-interfering AC–DC converter within a DC bus architecture that acts as a micro grid. The proposal aims to reduce reliance on the electrical grid while ensuring stable and highly efficient performance under varying operating conditions. The PV and BESS systems are interconnected via nested DC–DC converters to improve efficiency and minimize current strain on power components. The front AC–DC converter utilizes an inverted Buck–Boost architecture to maintain a constant DC bus voltage and draw a high power factor sinusoidal current from the grid. A single active bridge converter is employed to synchronize the DC bus voltage with the EV battery requirements. The effectiveness of the proposed control strategies was validated using PSCAD/EMTDC simulations of multiple dynamic scenarios, including sudden changes in solar irradiance and multiple charging ports. In addition, the results of the miniature experimental model confirm the system’s ability to start up smoothly, achieve a high power factor, and effectively regulate voltage and current, making it suitable for modern fast charging stations.


Received: 09 March 2026

Accepted: 06 July 2026

Published: 02 September 2026


Keywords


EV charging; Fast-Charging; Interleaved AC–DC Conversion; Battery Storage, Renewable Energy Sources

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References


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DOI: https://dx.doi.org/10.21622/resd.2026.12.2.1992

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Copyright (c) 2026 Bader N. Alajmi, Ibrahim Abdelsalam, Nabil A. Ahmed

Renewable Energy and Sustainable Development

E-ISSN: 2356-8569

P-ISSN: 2356-8518

 

Published by:

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Arab Academy for Science, Technology and Maritime Transport (AASTMT)

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