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<p>Dual active bridge (DAB) converters employ dual active design to overcome the unidirectional power flow limitations of traditional systems, making them suitable for diverse applications. However, the output voltage performance of DAB converters is affected by parameter mismatch under conventional finite-control-set model predictive control (FCS-MPC). Voltage-noise-suppression-based finite-control-set model-free predictive control (VNS-FCS-MFPC) is proposed in this study for DAB converters to enhance parameter robustness. The proposed VNS-FCS-MFPC eliminates the parametric effect by using and updating the ultra-local model of the DAB converter and considers and suppresses the voltage noise effect on MFPC by employing a sliding mode observer. The proposed VNS-FCS-MFPC effectively eliminates the parametric effect on conventional FCS-MPC, suppresses the voltage noise effect, and thus improves the voltage performance of DAB converters. An experiment is conducted on a DAB converter to validate the feasibility and performance of the proposed VNS-FCS-MFPC.</p>

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Finite-control-set model-free predictive control based on voltage noise suppression for dual active bridge converters

  • 期刊论文

  • 发表日期：

    2025年6月23日

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  • Zheng Yin,
  • Fujin Deng,
  • Sahar S. Kaddah,
  • Abdelhady Ghanem,
  • Sayed Abulanwar,
  • Yaqian Zhang

摘要

Dual active bridge (DAB) converters employ dual active design to overcome the unidirectional power flow limitations of traditional systems, making them suitable for diverse applications. However, the output voltage performance of DAB converters is affected by parameter mismatch under conventional finite-control-set model predictive control (FCS-MPC). Voltage-noise-suppression-based finite-control-set model-free predictive control (VNS-FCS-MFPC) is proposed in this study for DAB converters to enhance parameter robustness. The proposed VNS-FCS-MFPC eliminates the parametric effect by using and updating the ultra-local model of the DAB converter and considers and suppresses the voltage noise effect on MFPC by employing a sliding mode observer. The proposed VNS-FCS-MFPC effectively eliminates the parametric effect on conventional FCS-MPC, suppresses the voltage noise effect, and thus improves the voltage performance of DAB converters. An experiment is conducted on a DAB converter to validate the feasibility and performance of the proposed VNS-FCS-MFPC.