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Hybrid modulation strategy of three-phase dual-active-bridge converter to improve power conversion efficiency under light load conditions in LVDC applications

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Abstract

A hybrid control strategy for the three-phase dual-active-bridge (3P-DAB) converter of LVDC applications is presented to improve the power conversion efficiency under light load conditions. The 3P-DAB converter is an attractive topology for high-power applications such as railway traction and aircraft due to its inherent the zero voltage switching (ZVS) capability and reduction of conduction loss due to an interleaved structure with seamless bi-directional power transitions. However, conventional phase shift modulation (PSM) applied to a 3P-DAB converter has disadvantages such as ZVS failure under light load conditions. In this paper, an asymmetrical pulse width modulation is inserted into PSM to replace the existing modulation algorithm of a 3P-DAB converter with a simple control approach. In the proposed control, the transferred power can be calculated according to the mode changes. In addition, the soft switching area of the power switches can be expanded by the proposed hybrid control strategy. Finally, experimental results validate the proposed hybrid modulation strategy using a 3-kW prototype 3P-DAB converter.

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References

  1. Chiradeja, P., Ramakumar, R.: An approach to quantify the technical benefits of distributed generation. IEEE Trans. Energy Convers. 19(4), 764–773 (2004)

    Article  Google Scholar 

  2. Lee, J., Kim, H., Han, B., Jeong, Y., Yang, H., Cha, H.: DC micro-grid operational analysis with a detailed simulation model for distributed generation. J. Power Electron. 11(3), 350–359 (2011)

    Article  Google Scholar 

  3. Choi, H.J., Jung, J.H.: Enhanced power line communication strategy for DC microgrids using switching frequency modulation of power converters. IEEE Trans. Power Electron. 32(6), 4140–4144 (2017)

    Article  Google Scholar 

  4. Lee, W., Choi, H., Cho, Y., Ryu, M., Jung, J.: Design methodology of a three-phase dual active bridge converter for low voltage direct current applications. J. Power Electron. 18(2), 482–491 (2018)

    Google Scholar 

  5. Liu, C., Zhu, D., Zhang, J., Liu, H., Cai, G.: A bidirectional dual buck-boost voltage balancer with direct coupling based on a burst-mode control scheme for low-voltage bipolar-type DC microgrids. J. Power Electron. 15(6), 1609–1618 (2015)

    Article  Google Scholar 

  6. Krismer, F., Kolar, J.W.: Efficiency-optimized high-current dual active bridge converter for automotive applications. IEEE Trans. Industr. Electron. 59(7), 2745–2760 (2012)

    Article  Google Scholar 

  7. Choi, H.-J., Jung, J.-H.: Practical design of dual active bridge converter as isolated bi-directional power interface for solid state transformer applications. J. Electr. Eng. Tech. 11(5), 1266–1273 (2016)

    Google Scholar 

  8. Jeong, D., Ryu, M., Kim, H., Kim, H.: Optimized design of bi-directional dual active bridge converter for low-voltage battery charger. J. Power Electron. 14(3), 468–477 (2014). https://doi.org/10.6113/JPE.2014.14.3.468

    Article  Google Scholar 

  9. Yao, Y., Xu, S., Sun, W., Lu, S.: A novel compensator for eliminating DC magnetizing current bias in hybrid modulated dual active bridge converters. J. Power Electron. 16(5), 1650–1660 (2016)

    Article  Google Scholar 

  10. Naayagi, R.T., Forsyth, A.J., Shuttleworth, R.: High-power bidirectional dc-dc converter for aerospace applications. IEEE Trans. Power Electron. 27(11), 4366–4379 (2012)

    Article  Google Scholar 

  11. De Doncker, R.W.A.A., Divan, D.M., Kheraluwala, M.H.: “A three-phase soft-switched high-power density DC/DC converter for high-power applications”. IEEE Trans Ind. Appl. 27(1), 63–73 (1991)

    Article  Google Scholar 

  12. H. Choi, B. Seo, M. Ryu, Y. Cho, J. Jung, “Effective magnetic component design of three phase dual active bridge converter for LVDC distribution system,” in IEEE Transactions on Industrial Electronics.

  13. van Hoek, H., Neubert, M., De Doncker, R.: Enhanced modulation strategy for a three-phase dual active bridge-boosting efficiency of an electric vehicle converter. Power Electronics, IEEE Transactions on 28(12), 5499–5507 (2013)

    Article  Google Scholar 

  14. Kheraluwala, M.N., Gascoigne, R.W., Divan, D.M., Baumann, E.D.: Performance characterization of a high-power dual active bridge DC-to-DC converter. IEEE Trans. Ind. Appl. 28(6), 1294–1301 (1992)

    Article  Google Scholar 

  15. J. Huang, Y. Wang, Z. Li, Y. Jiang (2015) Simultaneous pwm control to operate the three-phase dual active bridge converter under soft switching in the whole load range. In Applied Power Electronics Conference and Exposition (APEC), IEEE, pp. 2885–2891.

  16. J. Hu, N. Soltau, R. W. De Doncker (2016) Asymmetrical duty-cycle control of three-phase dual-active bridge converter for soft-switching range extension. IEEE Energy Conversion Congress and Exposition (ECCE), pp. 1–8

  17. H.-J. Choi, S-h Jung, J-H Jung () A Novel Switching Algorithm to improve Efficiency at light load conditions for Three-Phase DAB Converter in LVDC Application. pp. 383–387. 10.23919/IPEC.

  18. Noah, M., et al.: Magnetic design and experimental evaluation of a commercially available single integrated transformer in three-phase LLC resonant converter. IEEE Trans. Ind. Appl. 54(6), 6190–6204 (2018)

    Article  Google Scholar 

  19. Baars, N.H., Everts, J., Wijnands, C.G.E., Lomonova, E.A.: Performance evaluation of a three-phase dual active bridge DC–DC converter with different transformer winding configurations. IEEE Trans. Power Electron. 31(10), 6814–6823 (2016)

    Google Scholar 

  20. Jiang, L., Sun, Y., Su, M., Wang, H., Dan, H.: Optimized operation of dual-active-bridge DC–DC converters in the soft-switching area with triple-phase-shift control at light loads. J. Power Electron. 18(1), 45–55 (2018). https://doi.org/10.6113/JPE.2018.18.1.45

    Article  Google Scholar 

  21. Byen, B., Jeong, B., Choe, G.: Single pulse-width-modulation strategy for dual-active bridge converters. J. Power Electron. 18(1), 137–146 (2018)

    Google Scholar 

  22. Wen, H., Su, B.: Reactive power and soft-switching capability analysis of dual-active-bridge DC–DC converters with dual-phase-shift control. J. Power Electron. 15(1), 18–30 (2015)

    Article  Google Scholar 

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Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (NRF-2019R1A2B5B01069665)

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  1. Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea

    Hyunjun Choi & Jeehoon Jung

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  1. Hyunjun Choi
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  2. Jeehoon Jung
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Correspondence to Jeehoon Jung.

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Choi, H., Jung, J. Hybrid modulation strategy of three-phase dual-active-bridge converter to improve power conversion efficiency under light load conditions in LVDC applications. J. Power Electron. 20, 894–903 (2020). https://doi.org/10.1007/s43236-020-00079-7

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  • DOI: https://doi.org/10.1007/s43236-020-00079-7

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