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

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Article Navigation > High Power Laser and Particle Beams > 2025 > Accepted Manuscript

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. 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. 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: 2025-06-27
Rev Recd Date: 2025-06-30

Available Online: 2025-07-07

Abstract

Abstract

With the advancement of active phased array radar, the requirement for transmit-receive (TR) power supplies in phased array radar has been escalating continuously. TR power supplies featuring wide input voltage range, high frequency, and high efficiency have emerged as the prevailing research orientation nowadays. Dual active bridge (DAB) converters can realize wide input voltage range and offer diversified control methods, thereby holding extensive application prospects in the domain of TR power supplies. Nevertheless, the system parameters such as inductance and switching frequency of DAB converters exert a considerable influence on the transmission power of TR power supplies and the on-state current of power MOSFETs. Based on the extend-phase-shift (EPS) modulation approach in DAB converters, this paper deduces the expressions of power transmission characteristics and inductor current magnitude, and proposes a parameter optimization design method for DAB circuits under EPS modulation. With the maximum transmission power considering overload requirements, the derating design of the maximum on-state current of MOS devices, and the minimum output voltage ripple frequency as restrictive indicators, the reliable operation area (ROA) is planned based on the parameter limitations, providing a reference basis for designing the corresponding inductance value, switching frequency, and optimizing DAB parameters. Finally, through the corresponding MATLAB simulation analysis of a two-output DAB converter, the simulation results indicate that the output voltage ripple, the on-state current of MOSFETs, and the output power conform to the expected demand indicators, validating the accuracy of the above theoretical derivation.
- dual active bridge,
- parameter planning,
- EPS modulation,
- reliable operation area,
- multi-output

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References(17)

References

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