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Analysis and optimisation of modulation strategy based on dual-phase-shift for modular multilevel high-frequency-link DC transformer in medium-voltage DC distribution network

Analysis and optimisation of modulation strategy based on dual-phase-shift for modular multilevel high-frequency-link DC transformer in medium-voltage DC distribution network

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DC/DC converters are crucial in DC distribution networks for converting voltage and interconnecting different voltage links. The modular multilevel high-frequency-link DC transformer (MDCT), which employs multiplex conversion principle and provides many advantages, realises voltage conversion, power transfer and electrical isolation between links in medium-voltage DC distribution networks. To improve the performance of MDCT, this study investigates the modulation with the phase-shift strategy and its influence on current stress, power characteristic and efficiency characteristic of MDCT. Besides, to simultaneously achieve an optimal solution for both current stress and efficiency characteristics of MDCT, an optimal modulation strategy based on dual-phase-shift is proposed. Finally, an MDCT prototype is constructed and experimental results verify the correctness and effectiveness of the analysis and proposed scheme.

References

    1. 1)
      • 1. Liu, H.K., Xie, X., Zhang, C., et al: ‘Quantitative SSR analysis of series-compensated DFIG-based wind farms using aggregated RLC circuit model’, IEEE Trans. Power Syst.2017, 32, (1), pp. 474483.
    2. 2)
      • 2. Tabari, M., Yazdani, A.: ‘Stability of a DC distribution system for power system integration of plug-in hybrid electric vehicles’, IEEE Trans. Smart Grid, 2014, 5, (5), pp. 25642573.
    3. 3)
      • 3. Wang, Y., Song, Q., Sun, Q., et al: ‘Multilevel MVDC link strategy of high-frequency-link DC transformer based on switched capacitor for MVDC power distribution’, IEEE Trans. Ind. Electron., 2017, 64, (4), pp. 28292835.
    4. 4)
      • 4. Li, Y., Luo, L., Rehtanz, C., et al: ‘Harmonic transfer characteristics of a new HVDC system based on an inductive filtering method’, IEEE Trans. Power Electron., 2012, 27, (5), pp. 22732283.
    5. 5)
      • 5. Zhao, B., Song, Q., Liu, W., et al: ‘Overview of dual-active-bridge isolated bidirectional DC–DC converter for high-frequency-link power- conversion system’, IEEE Trans. Power Electron., 2014, 29, (8), pp. 40914106.
    6. 6)
      • 6. Twiname, R.P., Thrimawithana, D.J., Madawala, U.K., et al: ‘A dual-active bridge topology with a tuned CLC network’, IEEE Trans. Power Electron., 2015, 30, (12), pp. 65436550.
    7. 7)
      • 7. Xie, Y., Sun, J., Freudenberg, J. S.: ‘Power flow characterization of a bidirectional galvanically isolated high-power DC–DC converter over a wide operating range’, IEEE Trans. Power Electron., 2010, 25, (1), pp. 5466.
    8. 8)
      • 8. Oggier, G.G., Garcia, G.O., Oliva, A.R.: ‘Modulation strategy to operate the dual active bridge DC–DC converter under soft switching in the whole operating range’, IEEE Trans. Power Electron., 2011, 26, (4), pp. 12281236.
    9. 9)
      • 9. Huang, J., Wang, Y., Li, Z., et al: ‘Multifrequency approximation and average modeling of an isolated bidirectional DC–DC converter for DC microgrids’, IET Power Electron., 2016, 9, (6), pp. 11201131.
    10. 10)
      • 10. Mi, C., Bai, H., Wang, C., et al: ‘Operation, design and control of dual H-bridge-based isolated bidirectional DC–DC converter’, IET Power Electron., 2008, 1, (4), pp. 507517.
    11. 11)
      • 11. Choi, W., Rho, K-M., Cho, B-H.: ‘Fundamental duty modulation of dual-active-bridge converter for wide-range operation’, IEEE Trans. Power Electron., 2016, 31, (6), pp. 40484064.
    12. 12)
      • 12. Zumel, P., Ortega, L., Lazaro, A., et al: ‘Control strategy for modular dual active bridge input series output parallel’. 14h IEEE Workshop on Control and Modeling for Power Electronics, 2013, pp. 17.
    13. 13)
      • 13. Mohammadpour, A., Parsa, L., Todorovic, M. H., et al: ‘Series-input parallel-output modular-phase DC–DC converter with soft switching and high frequency isolation’, IEEE Trans. Power Electron., 2016, 31, (1), pp. 111119.
    14. 14)
      • 14. Maqsood, A., Overstreet, A., Corzine, K.: ‘Modified Z-source DC circuit breaker topologies’, IEEE Trans. Power Electron., 2016, 31, (10), pp. 73947403.
    15. 15)
      • 15. Kish, G.J., Ranjram, M., Lehn, P.W.: ‘A modular multilevel DC/DC converter with fault blocking capability for HVDC interconnects’, IEEE Trans. Power Electron., 2015, 30, (1), pp. 148162.
    16. 16)
      • 16. Kenzelmann, S., Rufer, A., Dujic, D., et al: ‘Isolated DC/DC structure based on modular multilevel converter’, IEEE Trans. Power Electron., 2015, 30, (1), pp. 8998.
    17. 17)
      • 17. Ferreira, J.A.: ‘The multilevel modular DC converter’, IEEE Trans. Power Electron., 2013, 28, (10), pp. 44604465.
    18. 18)
      • 18. Luth, T., Merlin, M.M.C., Green, T.C., et al: ‘High-frequency operation of a DC/AC/DC system for HVDC applications’, IEEE Trans. Power Electron., 2014, 29, (8), pp. 41074115.
    19. 19)
      • 19. Yang, J., He, Z., Pang, H., et al: ‘The hybrid-cascaded DC–DC converters suitable for HVdc applications’, IEEE Trans. Power Electron., 2015, 30, (10), pp. 53585363.
    20. 20)
      • 20. Far, A.A.J., Hajian, M., Jovcic, D., et al: ‘High-power modular multilevel converter optimal design for DC/DC converter applications’, IET Power Electron., 2016, 9, (2), pp. 247255.
    21. 21)
      • 21. Hu, Y., Zeng, R., Cao, W., et al: ‘Design of a modular, high step-up ratio DC–DC converter for HVDC applications integrating offshore wind power’, IEEE Trans. Ind. Electron., 2016, 63, (4), pp. 21902202.
    22. 22)
      • 22. Gowaid, I.A., Adam, G.P., Ahmed, S., et al: ‘Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC–DC transformers’, IEEE Trans. Power Electron., 2015, 30, (10), pp. 54395457.
    23. 23)
      • 23. Gowaid, I.A., Adam, G.P., Massoud, A.M., et al: ‘Quasi two-level operation of modular multilevel converter for use in a high-power DC transformer with DC fault isolation capability’, IEEE Trans. Power Electron., 2015, 30, (1), pp. 108123.
    24. 24)
      • 24. Engel, S.P., Stieneker, M., Soltau, N., et al: ‘Comparison of the modular multilevel DC converter and the dual-active bridge converter for power conversion in HVDC and MVDC grids’, IEEE Trans. Power Electron., 2014, 30, (1), pp. 124137.
    25. 25)
      • 25. Zhao, B., Song, Q., Li, J., et al: ‘Modular multilevel high-frequency-link DC transformer based on dual active phase-shift principle for medium-voltage DC power distribution application’, IEEE Trans. Power Electron.2017, 32, (3), pp. 17791791.
    26. 26)
      • 26. Costinett, D., Maksimovic, D., Zane, R.: ‘Design and control for high efficiency in high step-down dual active bridge converters operating at high switching frequency’, IEEE Trans. Power Electron.2013, 28, (8), pp. 39313940.
    27. 27)
      • 27. Zhao, B., Song, Q., Liu, W., et al: ‘Current-stress-optimized switching strategy of isolated bidirectional DC–DC converter with dual-phase-shift control’, IEEE Trans. Ind. Electron., 2013, 60, (10), pp. 44584467.
    28. 28)
      • 28. Karthikeyan, V., Gupta, R.: ‘Zero circulating current modulation for isolated bidirectional dual-active-bridge DC–DC converter’, IET Power Electron., 2016, 9, (7), pp. 15531561.
    29. 29)
      • 29. Krismer, F., Kolar, J. W.: ‘Efficiency-optimized high-current dual active bridge converter for automotive applications’, IEEE Trans. Power Electron., 2012, 59, (7), pp. 27452760.
    30. 30)
      • 30. Xing, Z., Ruan, X., You, H., et al: ‘Soft-switching operation of isolated modular DC/DC converters for application in HVDC grids’, IEEE Trans. Power Electron., 2016, 31, (4), pp. 848859.
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