Parameter optimization of dual active bridge converter under extended phase shift modulation

Sun Weixiang; Wang Xinzheng; Shi Leilei; Li Jiaqi; Lin Jiang; Liu Shichao

doi:10.11884/HPLPB202537.250043

Volume 37 Issue 9

Sep. 2025

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2025 > 37(9): 095002

Sun Weixiang, Wang Xinzheng, Shi Leilei, et al. Parameter optimization of dual active bridge converter under extended phase shift modulation[J]. High Power Laser and Particle Beams, 2025, 37: 095002. doi: 10.11884/HPLPB202537.250043

Citation:

Sun Weixiang, Wang Xinzheng, Shi Leilei, et al. Parameter optimization of dual active bridge converter under extended phase shift modulation[J]. High Power Laser and Particle Beams, 2025, 37: 095002. doi: 10.11884/HPLPB202537.250043

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Parameter optimization of dual active bridge converter under extended phase shift modulation

doi: 10.11884/HPLPB202537.250043

State Key Laboratory of Space-sources, Shanghai Institute of Space Power-sources, Shanghai 200245, China

Received Date: 2025-03-10
Accepted Date: 2025-06-30
Rev Recd Date: 2025-06-30

Available Online: 2025-07-07

Publish Date: 2025-09-05

Abstract

Abstract

Background
With the development of active phased array radar systems, the demand for transmit-receive (TR) power supplies has increased significantly. Modern TR modules require power supplies with wide input voltage ranges, high-frequency operation, and high efficiency. dual-active bridge (DAB) converters are widely recognized for their ability to achieve these characteristics, offering diverse control strategies and broad application potential. However, key system parameters such as inductance and switching frequency in DAB converters significantly impact power transmission capabilities and the on-state current of power MOSFETs, posing challenges for optimal design.
Purpose
This study aims to address these challenges by proposing a parameter optimization design method for DAB converters based on extended phase-shift (EPS) modulation. The goal is to ensure reliable operation under overload conditions while meeting critical design constraints, including maximum power transfer, MOSFET current derating, and output voltage ripple reduction.
Methods
The power transfer characteristics and inductor current expressions of the EPS-modulated DAB converter were derived theoretically. A reliability-oriented operating region (ROA) was defined by integrating constraints such as maximum power transfer under overload, MOSFET on-state current derating, and minimum output voltage ripple frequency. The optimization process involved systematic parameter planning to determine optimal inductance values and switching frequencies.
Results
MATLAB simulations of a dual-output DAB converter demonstrated that the proposed method effectively reduced output voltage ripple, minimized MOSFET on-state current, and achieved the desired power output. The simulation results aligned with theoretical predictions, validating the accuracy of the derived equations and the feasibility of the optimization approach.
Conclusions
The EPS-based parameter optimization method provides a systematic framework for designing DAB converters tailored to TR power supply requirements. By addressing key design constraints and leveraging ROA analysis, this approach enhances power transmission efficiency and device reliability. The results highlight the potential of EPS-modulated DAB converters in advanced TR modules, offering a practical solution for high-performance phased array radar systems.
- dual active bridge,
- parameter planning,
- extend-phase-shift modulation,
- reliable operation area,
- multi-output

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References(17)

References

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