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Quantum-inspired optimization for current stress reduction in DAB converters for ultra-fast EV charging
Suwaiba Mateen1, Ahteshamul Haque1, Mohammed Ali Khan2
1Department of Electrical Engineering, Jamia Millia Islamia, New Delhi, 110022, India.
Scientific Reports
|February 15, 2026
Summary
A new Dual Active Bridge modulation strategy enhances electric vehicle charging. This method reduces current stress by 50%, improving efficiency and reliability for ultra-fast charging systems.
Area of Science:
- Electrical Engineering
- Power Electronics
- Electric Vehicle Technology
Background:
- Ultra-fast charging (UFC) for electric vehicles (EVs) presents significant power converter design challenges.
- The Dual Active Bridge (DAB) converter is a promising solution for high-power DC charging applications.
Purpose of the Study:
- To propose a novel phase-shift modulation strategy for DAB converters to minimize current stress.
- To enhance the efficiency, reliability, and thermal management of DAB converters for UFC.
Main Methods:
- Development of a new dual phase-shift modulation strategy for DAB converters.
- Utilization of Quantum-Inspired Optimization (QIO) for tuning phase delays.
- Comparative analysis against the conventional single-phase shift (SPS) method.
Main Results:
- The proposed method achieves Zero Voltage Switching (ZVS) for all switches.
- Demonstrated reduction in current stress by up to 50% compared to SPS.
- Significant enhancement in converter reliability and efficiency.
Conclusions:
- The novel dual phase-shift modulation strategy is effective for high-power EV charging.
- The proposed technique offers improved performance, reliability, and scalability for next-generation UFC infrastructure.
- Simulation and experimental results validate the proposed method's suitability.
Keywords:
Current stress factorDual active bridgeReliabilityTransmission powerUltra-fast chargingZero voltage switchingMore Related Videos
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