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access icon free High power factor high power density high voltage converter based on AC link

© The Institution of Engineering and Technology
Received 08/04/2016, Accepted 05/02/2017, Revised 01/01/2017, Published 20/02/2017

To meet the demand of high efficiency, high power density and good input and output performance for high power high voltage converter, the high frequency AC-link scheme, below resonance mode of LCC resonant circuit and soft-switched control method are combined in the proposed converter. The AC-link scheme can bring good performance at input port with small size, the continuous mode can reduce the peak current value in switches and the conduction loss, soft-switching character can reduce the switching loss. To make the combination applicable in high voltage application, this study introduces a control method including switch commutation, control algorithm and control block diagram. To verify accuracy of control parameters and feasibility of the proposed converter, the simulation and experiment are conducted on a 50 kV, 80 kW prototype. It turns out that the experiment results are in agreement with simulation and theoretically expected results. The experimental results also show that the output voltage ripple is less than 1% at 50 kV, the input power factor is 0.99, the total harmonic distortion of input current is less than 7.5%, the total efficiency is 94.5% and power density is 0.93 W/cm3.

Inspec keywords: electric current control; switching convertors; harmonic distortion; commutation; resonant power convertors; power factor

Other keywords: high frequency AC-link; output voltage ripple; control algorithm; continuous mode; conduction loss; soft-switched control method; power 80 kW; switching loss reduction; high power factor high power density high voltage converter; LCC resonant circuit; voltage 50 kV; control block diagram; switch commutation; peak current value reduction; total harmonic distortion; resonance mode; control parameter accuracy

Subjects: Current control; Control of electric power systems; Power convertors and power supplies to apparatus

References

    1. 1)
      • 9. Klaassens, J.B.: ‘DC-AC series-resonant converter system with high internal frequency generating multiphase AC waveforms for multikilowatt power levels’, IEEE Trans. Power Electron., 1987, 2, (3), pp. 247–256.
    2. 2)
      • 6. Ryoo, H.J., Jang, S.R., Jin, Y.S., , et al: ‘Design of high voltage capacitor charger with improved efficiency, power density and reliability’, IEEE Trans. Dielectr. Electr. Insul., 2013, 20, (4), pp. 1076–1084.
    3. 3)
      • 33. Wang, L., Zhang, W., Na, J., et al: ‘Robust repetitive control of three-phase inverter system using high order internal model’. 35th Chinese Control Conf. (CCC), 2016, pp. 8544–8549.
    4. 4)
      • 13. Huisman, H., de Haan, S.W.H.: ‘A DC to 3-phase series-resonant converter with low harmonic distortion’, IEEE Trans. Ind. Electron., 1985, IE-32, (2), pp. 142–149.
    5. 5)
      • 17. Rudy, L.: ‘Resonant link PFN charger and modulator power supply’. Proc. of 16th IEEE Int. Pulsed Power Conf., Albuquerque, New Mexico, 2007, pp. 1495–1499.
    6. 6)
      • 26. Oghafi, V., Radan, A.: ‘Bidirectional switch commutation for high frequency UPF matrix converter supplying inductive power transfer system’. 5th Power Electronics, Drive Systems and Technologies Conf., (PEDSTC), 2014, pp. 422–427.
    7. 7)
      • 30. Bland, M.J., Clare, J.C., Zanchetta, P., et al: ‘A high frequency resonant power converter for high power RF application’. 2005 European Conf. on Power Electronics and Applications, 2005, pp. 1–10.
    8. 8)
      • 4. Sasangka, F., Hagiwara, M., Akagi, H.: ‘A front-to-front (FTF) system consisting of multiple modular multilevel cascade converters for offshore wind farms’. Int. Power Electronics Conf. (IPEC-Hiroshima 2014 – ECCE ASIA), 2014, pp. 1761–1768.
    9. 9)
      • 16. Harrison, M.J., Li, H., Kotula, T., et al: ‘Closed loop control of a cyclo-converter’. United States Patent, No. 9036373, 2015.
    10. 10)
      • 11. Kim, I.-D., Cho, G.-H.: ‘New bilateral zero voltage switching Ac/Ac converter using high frequency partial resonant link’. 16th Annual Conf. on IEEE Industrial Electronics Society, 1990, vol. 2, pp. 857–862.
    11. 11)
      • 27. Zhang, Z., Liu, Q., Wu, Z., et al: ‘Series resonant converter based on HF AC-link technology’, High Power Laser Part. Beams, 2011, 23, (11), pp. 2915–2918.
    12. 12)
      • 22. Cook, D.J., Catucci, M., Wheeler, P.W., et al: ‘Development of a predictive controller for use on a direct converter for high-energy physics applications’, IEEE Trans. Ind. Electron., 2008, 55, (12), pp. 4325–4334.
    13. 13)
      • 2. Kumar, N., Singh, U., Kumar, A., et al: ‘Design of 95 GHz, 100 kW Gyrotron for active denial system application’, Vacuum, 2013, 99, (1), pp. 99–106.
    14. 14)
      • 1. Bees, G.L., Simpson, L., Tydeman, A.: ‘A precision 75 kW, 25 kV power system for A klystron amplifier’. IEEE Particle Accelerator Conf., 2007 (PAC), 2007, pp. 593–595.
    15. 15)
      • 29. Li, W., Liu, Q., Zhang, Z.: ‘High power density high voltage power supply based on AC-link’. 54th Annual Conf. of the Society of Instrument and Control Engineers of Japan (SICE), 2015, pp. 848–855.
    16. 16)
      • 31. Zhang, Z., Xie, Y., Yuan, Z.: ‘Analysis of circuit characteristics of LCC resonant converter’, Trans. Chin. Electrotech. Soc., 2013, 28, (4), pp. 50–57.
    17. 17)
      • 23. Reyes-Moraga, E., Watson, A., Care, J., et al: ‘Predictive control of a direct resonant converter with output voltage compensation for high voltage DC power supply applications’. IEEE 15th European Conf. on Power Electronics and Applications, 2013.
    18. 18)
      • 21. Amirabadi, M., Balakrishnan, A., Toliyat, H.A., et al: ‘High-frequency AC-link PV inverter’, IEEE Trans. Ind. Electron., 2014, 61, (1), pp. 281–291.
    19. 19)
      • 18. Rudy, L.: ‘Development of a low-EMI advanced variable speed drive for shipboard application’. Proc. of Conf. Record of the 2000 Twenty-Forth Int. Power modular Symp., Norfolk, Virginia, 2000, pp. 89–96.
    20. 20)
      • 5. Cho, J.G., Jeong, C.Y., Baek, J.W., et al: ‘High power factor three phase rectifier for high power density AC/DC conversion applications’. Applied Power Electronics Conf. and Exposition, 1999, vol. 2, pp. 910–915.
    21. 21)
      • 20. Wu, Z., Liu, Q., Zhang, Z., et al: ‘A novel AC-link charging technology’, Chin. J. Power Sources, 2012, 36, (2), pp. 268–270.
    22. 22)
      • 10. Tilgenkamp, N.V., de Haan, S.W.H., Huisman, H.: ‘A novel series-resonant converter topology’, IEEE Trans. Ind. Electron., 1987, IE-34, (2), pp. 240–246.
    23. 23)
      • 35. Bland, M.J., Clare, J.C., Zanchetta, P., et al: ‘A high frequency resonant power converter for high power RF applications’. European Conf. on Power Electronics and Applications, 2005, pp. 1–10.
    24. 24)
      • 7. Kolar, J.W., Friedli, T.: ‘The essence of three-phase PFC rectifier systems – Part I’, IEEE Trans. Power Electron., 2013, 28, (1), pp. 176–198.
    25. 25)
      • 8. Schwarz, F.C.: ‘A doublesided cycloconverter’, IEEE Trans. Ind. Electron. Control Instrum., 1981, IECI-28, (4), pp. 282–291.
    26. 26)
      • 28. Li, W., Liu, Q., Zhang, Z., et al: ‘High power high voltage DC power supply based on series-resonant high frequency AC link technology’, Trans. Chin. Electrotech. Soc., 2016, 31, (16), pp. 65–71.
    27. 27)
      • 14. Huisman, H.: ‘Design and control of a class of multiphase series-resonant power converters’ (Mechanical Maritime & Materials Engineering, Delft University Press, 1992).
    28. 28)
      • 24. Zeng, Y., Cai, J., Zhang, Z.: ‘Research on the induction-heating power supply using AC–AC conversion theory’, Power Electron., 2008, 42, (3), pp. 1–3.
    29. 29)
      • 32. Oruganti, R., Lee, F.C.: ‘Resonant power processors, part I – state plane analysis’, IEEE Trans. Ind. Appl., 1985, 21, (6), pp. 1453–1460.
    30. 30)
      • 25. Ecklebe, A., Lindemann, A., Schulz, S.: ‘Bidirectional switch commutation for matrix converter supplying a series resonant load’, IEEE Trans. Power Electron., 2009, 24, (5), pp. 1173–1181.
    31. 31)
      • 15. Huisman, H.: ‘A multiphase series-resonant converter with a new topology and a reduced number of thyristors’, IEEE Trans. Power Electron., 1995, 10, (1), pp. 86–93.
    32. 32)
      • 19. Erik, L., Deffley, G., Hoffmann, F., et al: ‘750 kW AC-link power converter for renewable generation and energy storage applications’, IEEE Energytech 2011, 2011, pp. 1–6, doi: 10.1109/EnergyTech.2011.5948513.
    33. 33)
      • 3. Ma, S.X., Zhang, M., Xia, L.L.: ‘High-voltage power supply for ECRH system on J-TEXT Tokamak’. IEEE 25th Symp. on Fusion Engineering (SOFE), 2013, pp. 1–5.
    34. 34)
      • 12. Limpaecher, R., Rodriguez, R., O'Loughlin, J.: ‘Harmonic free new inverter topology for high voltage, high power applications’. Twenty-Fourth Int. Power Modulator Symp., 2000, pp. 101–106.
    35. 35)
      • 34. Wang, D., Zhou, L., Wang, Z.: ‘Research on winding distributed capacitance adjustment of HF and HV transformer based on winding-rectification structure’, Transformer, 2013, 50, (9), pp. 25–29.
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