Control Strategy for Current Stress Mitigation in Dual Active Bridge for Electrical Vehicle Application

ABSTRACT This paper presents a novel control strategy for the isolated dual active bridge bidirectional DC‐DC converter (IBDC), aimed at addressing the challenges of current stress in conventional phase‐shift control methods. The proposed modified dual phase‐shift (DPS) technique incorporates an innovative switching approach, effectively reducing current stress, minimizing power losses, and enhancing overall efficiency. Theoretical modeling, simulations, and practical experiments validate the proposed technique, demonstrating its ability to achieve soft switching and expand the zero voltage switching (ZVS) region. Experimental results from a 2.4‐kW DAB prototype further confirm the effectiveness of the proposed control strategy. This research contributes to advancing the efficiency and performance of IBDCs, particularly in electric vehicles, by enabling enhanced energy efficiency, extended range, and reduced operational costs, thereby supporting the development of sustainable transportation and robust power electronics systems.