The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis and Design of Quadruple-Active-Bridge Converter Employing Passive Power Decoupling Capability

수동 전력 비동조화가 가능한 QAB 컨버터의 분석과 설계에 관한 연구

  • Received : 2021.10.11
  • Accepted : 2021.11.18
  • Published : 2022.04.20
Download PDF
⟨ Previous Next ⟩

Abstract

This study proposes an enhanced quadruple-Active-Bridge (QAB) converter that can solve power coupling problems. By adopting a multiple winding transformer, the equivalent circuit of a conventional QAB converter has power couplings between arbitrary output ports. This coupling is an unintended power relationship that complicates the regulation of output voltage of the multiple ports. The proposed converter can carry out power decoupling by changing the arrangement of the coupling inductor. Power transfer equations for the proposed converter and its operating principles are analyzed in detail. The power coupling caused by the transformer's leakage inductance is verified by using a proposed coupling factor that presents the relationship between inductance ratio and coupling power. In addition, the decoupling power control performance of the proposed converter is verified by simulation and a 3 kW prototype converter.

Keywords

Acknowledgement

본 연구는 2021년도 지식경제부의 재원으로 한국에너지 기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다. (No. 20192010106750) 본 연구는 2021년도 4단계 두뇌한국21 사업(4단계 BK21 사업)에 의하여 지원되었음.

References

  1. H. Wang and M. A. Redfern, "The advantages and disadvantages of using HVDC to interconnect AC networks," in 45th International Universities Power Engineering Conference UPEC 2010, pp. 1-5, 2010.
  2. S. Bandyopahyay, "A multiactive bridge converter with inherently decoupled power flows", in Proceeding of the IEEE Trans, Vol. 36, No. 2, Feb. 2021.
  3. H. J. Choi and J. H. Jung, "Practical design of dual active bridge converter as isolated bi-directional power interface for solid state transformer applications," J. Electr. Eng. Tech., Vol. 11, No. 5, pp. 1266-1273, Sep. 2016.
  4. D. Habumugisha, S. Chowdhury, and S. P. Chowdhury, "A DC-DC interleaved forward converter to step - up DC voltage for DC Microgrid applications," in 2013 IEEE Power & Energy Society General Meeting, 2013.
  5. I. Kim, J. Y. Sim, J. Y. Lee, and J. H. Jung, "Power decoupled multi-port dual-active-bridge converter employing multiple transformers for DC distribution applications" The Transactions of the Korean Institute of Power Electronics, Vol. 25, No. 4, pp. 286-292, Aug. 2020. https://doi.org/10.6113/TKPE.2020.25.4.286
  6. J. Y. Sim, J. Y. Lee, H. J. Choi, H. S. Kim, and J. H. Jung, "Decoupled power control of three-port dual active bridge DC-DC converter for DC microgrid systems," The Transactions of the Korean Institute of Power Electronics, Vol. 23, No. 5, pp. 366-372, Oct. 2018. https://doi.org/10.6113/TKPE.2018.23.5.366
  7. Application Note, "Choosing inductors for energy efficient power application," Coilcraft, 2020. [Online]. Available: http://www.coilcraft.com/getmedia/d2188b65-1616-41a6-9bf4-ac20d42b8e9a/doc1400_choosing_inductors_for_energy_efficiency.pdf
  8. C. Zhao, S. D. Round, and J. W. Kolar, "An isolated three-port bidirectional DC-DC converter with decoupled power flow management," IEEE Transactions on Power Electronics, Vol. 23, No. 5, pp. 2443-2453, Sep. 2008. https://doi.org/10.1109/TPEL.2008.2002056
  9. M. Kim, M. Rosekeit, S. K. Sul, R. W. A. A. De Doncker, "A dual-phase-shift control strategy for dual-active-bridge DC-DC converter in wide voltage range," in International Conference on Power Electronics (ICPE), pp. 364-371, 2011.
  10. H. Bai and C. Mi, "Eliminate reactive power and increase system efficiency of isolated bidirectional dual-active-bridge DC-DC converters using novel dual-phase-shift control," IEEE Transactions on Power Electronics, Vol. 23, No. 6, pp. 2905-2914, Nov. 2008. https://doi.org/10.1109/TPEL.2008.2005103
  11. N. Vazquez and M. Liserre, "Peak current control and feed-forward compensation for the DAB converter," in 2019 IEEE International Conference on Industrial Technology (ICIT), pp. 685-690, 2019.
  12. A. Tong, L. Hang, G. Li, X. Jiang, and S. Gao, "Modeling and analysis of a dual-active-bridge-isolated bidirectional DC/DC converter to minimize RMS current with whole operating range," IEEE Transactions on Power Electronics, Vol. 33, No. 6, pp. 5302-5316, Jun. 2018. https://doi.org/10.1109/tpel.2017.2692276
  13. R. Ridley. "Leakage inductance considerations for custom transformers," May 2019. [Online]. Available: https://eepower.com/technical-articles/leakage-inductance-considerations-for-custom-transformers/.