Efficient control of a bidirectional DC-DC converter for battery charging and discharging in electric vehicle motor drives

Akter, Khadiza and Motakabber, S. M. A. and Alam, A. H. M. Zahirul and Tanim, Md.Tanjil Rahman and Mahmud, Daninsh and Hossain, Bayajid (2026) Efficient control of a bidirectional DC-DC converter for battery charging and discharging in electric vehicle motor drives. In: 2025 10th International Conference on Computer and Communication Engineering (ICCCE), 26-27 August 2025, KOE, IIUM.

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Abstract

This paper presents a bidirectional DC-DC converter model designed for efficient battery charging and discharging in motor drive applications. The model features state-of-charge (SOC) monitoring, mode detection, and current control using Proportional-Integral (PI) regulators. Simulation results demonstrate seamless power transfer, optimized control strategies, and improved battery lifespan. The control method enhances the performance of both charging and discharging modes, maintaining voltage stability and minimizing power losses. In charging mode, the converter efficiently manages energy flow from external sources or regenerative braking, improving battery utilization. In discharging mode, it ensures a steady power supply to the motor, adapting to dynamic load conditions. The output of the model validates the effectiveness, demonstrating improved energy efficiency, reduced ripple in torque while connected with the BLDC motor, seamless power transfer, optimized control strategies, and improved battery lifespan, making it a viable solution for energy storage management. Furthermore, the suggested configuration offers high modularity, facilitating easy integration into diverse electric vehicle architectures and scalable energy storage systems. The verification of the results for the recommended and existing models has been performed using MATLAB Simulink.

Item Type:	Proceeding Paper (Plenary Papers)
Uncontrolled Keywords:	bidirectional converter, state of charge, proportional integral (PI) controller, battery charging and discharging
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK452 Electric apparatus and materials. Electric circuits. Electric networks
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr S M A Motakabber
Date Deposited:	22 Jul 2026 15:25
Last Update:	22 Jul 2026 15:25
Queue Number:	2026-07-Q4185
URI:	http://irep.iium.edu.my/id/eprint/128560

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