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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Fang, Liew Hui
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Control & Systems Engineering Electrical & Electronics Engineering

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Development of an advanced current mode charging control strategy system for electric vehicle batteries Fang, Liew Hui; Romli, Muhammad Izuan Fahmi; Rahim, Rosemizi Abd; Aziz, Muhammad Ezanuddin Abdul; Rahman, Diyya Hidayah Abd; Mokhtaruddin, Habibah Haji
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 4: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i4.pp2639-2650

Abstract

Electric vehicles (EVs) face customer hesitancy due to challenges in locating fast charging stations, lengthy recharging times, and incompatible charging ports. This research addresses these issues by proposing a novel current mode control strategy for EV battery charging. Traditional charging methods often result in suboptimal rates, battery degradation, and safety risks. The primary objective is to enhance charging efficiency, safety, and battery lifespan by optimizing parameters such as voltage and current. Control mode charging offers significant advantages over plug-in charging by minimizing stress factors that contribute to degradation, such as high temperatures and excessive charging cycles. This approach aims to extend the lifespan of EV batteries while ensuring safe, efficient, and fast charging. The control system offers three charging modes: slow (0.49 A, 6.31 W, 264 mins), medium (2.74 A, 34.85 W, 50 mins), and fast (4.62 A, 50.80 W, 30 mins) using a 12 V single-phase supply. This advanced strategy significantly improves EV charging system efficiency, with fast charging achieving 80% higher efficiency than slow charging in both simulations and experimental testing. The key contribution of this research is the development of a tailored current mode charging strategy that optimizes charging efficiency while ensuring battery longevity and safety.
Improving efficiency of wireless charging system in electric vehicle using a hybrid ultracapacitor-battery energy storage approach Fang, Liew Hui; Romli, Muhammad Izuan Fahmi; Rahim, Rosemizi Abd; Mukhtar, Nurhakimah Mohd; Kimpol, Norhanisa
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 4: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i4.pp2685-2699

Abstract

This research aims to enhance the efficiency of wireless charging systems in electric vehicles by integrating a hybrid ultracapacitor-battery energy storage solution. Traditional standalone battery-based energy storage systems in wireless charging often face sub-optimal charging efficiency, resulting in extended charging times and reduced energy transfer efficiency. To address this limitation, we propose a hybrid approach that combines the rapid charging capability of ultracapacitor (supercapacitor) with the long-term storage capacity of batteries. The optimal charging range is 0 cm to 2 cm, and the combined output voltage and current are 5 V to 12 V and 0.63 A, respectively. This hybrid energy storage system will significantly boost electric vehicles (EVs) charging efficiency. Our research involves experimental evaluation and data analysis to assess crucial parameters, including charging efficiency, energy transfer efficiency, and charging time. The experimental results are validated and compared against existing battery-only systems, shedding light on the advantages and limitations of the hybrid approach. This study contributes to the optimization of wireless charging systems, enhancing energy transfer efficiency, and promoting the broader adoption of wireless charging technology in electric vehicles.
Co-Authors Aziz, Muhammad Ezanuddin Abdul Kimpol, Norhanisa Mokhtaruddin, Habibah Haji Muhammad Izuan Fahmi Romli, Muhammad Izuan Fahmi Mukhtar, Nurhakimah Mohd Rahim, Rosemizi Abd Rahman, Diyya Hidayah Abd