Journal of Power Electronics

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

DOI QR Code

Soft-Switching T-Type Multilevel Inverter

  • Chen, Tianyu (Department of Electrical and Computer Engineering, University of Texas at Dallas) ;
  • Narimani, Mehdi (Department of Electrical and Computer Engineering, McMaster University)
  • Received : 2018.12.22
  • Accepted : 2019.05.29
  • Published : 2019.09.20
Download PDF
⟨ Previous Next ⟩

Abstract

In order to improve the conversion efficiency and mitigate the EMI problem of conventional hard-switching inverters, a new soft-switching DC-AC inverter with a compact structure and a low modulation complexity is proposed in this paper. In the proposed structure, resonant inductors are connected in series for the arm branches, and resonant capacitors are connected in parallel for the neutral point branches. With the help of resonant components, the proposed structure achieves zero-current switching on the arm branches and zero-voltage switching on the neutral point branches. When compared with state-of-art soft-switching topologies, the proposed topology does not need auxiliary switches. Moreover, the commutation algorithm to realize soft-switching can be easily implemented. In this paper, the principle of the resonant operation of the proposed soft-switching converter is presented and its performance is verified through simulation studies. The feasibility of the proposed inverter is evaluated experimentally with a 2.4-kW prototype.

Keywords

References

  1. B. Wu, and M. Narimani, High-Power Converters and AC Drives, 2nd ed., IEEE Press, Chap. 6, 2017.
  2. R. Vargas, P. Cortes, U. Ammann, J. Rodriguez, and J. Pontt, "Predictive control of a three-phase neutral-pointclamped inverter," IEEE Trans. Ind. Electron., Vol. 54, No. 5, pp. 2697-2705, Oct. 2007. https://doi.org/10.1109/TIE.2007.899854
  3. P. Alemi, Y.-C. Jeung, and D.-C. Lee, “DC-link capacitance minimization in T-type three-level AC/DC/AC PWM converters,” IEEE Trans. Ind. Electron., Vol. 62, No. 3, pp. 1382-1391, Mar. 2015. https://doi.org/10.1109/TIE.2014.2345354
  4. K. Tian, B. Wu, M. Narimani, D. D. Xu, Z. Cheng, and N. R. Zargari, “A capacitor voltage-balancing method for nested neutral point clamped (NNPC) inverter,” IEEE Trans. Power Electron., Vol. 31, No. 3, pp. 2575-2583, Mar. 2016. https://doi.org/10.1109/TPEL.2015.2438779
  5. P. Cortes, A. Wilson, S. Kouro, J. Rodriguez, and H. Abu-Rub, “Model predictive control of multilevel cascaded Hbridge inverters,” IEEE Trans. Ind. Electron., Vol. 57, No. 8, pp. 2691-2699, Aug. 2010. https://doi.org/10.1109/TIE.2010.2041733
  6. S. Rohner, S. Bernet, M. Hiller, and R. Sommer, “Modulation, losses, and semiconductor requirements of modular multilevel converters,” IEEE Trans. Ind. Electron., Vol. 57, No. 8, pp. 2633-2642, Aug. 2010. https://doi.org/10.1109/TIE.2009.2031187
  7. M. Schweizer and J. Kolar, “Design and implementation of a highly efficient three-level T-type converter for lowvoltage applications,” IEEE Trans. Power Electron., Vol. 28, No. 2, pp. 899-907, Feb. 2013. https://doi.org/10.1109/TPEL.2012.2203151
  8. H. Zhu, J.-S. Lai, A. R. Hefner, Y. Tang, and C. Chen "Modeling-based examination of conducted EMI emissions from hard and soft-switching PWM inverter," IEEE Trans. Ind. App., Vol. 37, No. 5, pp. 1383-1393, Sep. 2001. https://doi.org/10.1109/28.952514
  9. J. M. Erdman, R. J. Kerkman, D. W. Schlegel, and G. L. Skibinski, “Effect of PWM inverters on AC motor bearing currents and shaft voltage,” IEEE Trans. Ind. App., Vol. 32, No. 2, pp. 250-259, Mar. 1996. https://doi.org/10.1109/28.491472
  10. S. Chen, and T. A. Lipo, “Bearing currents and shaft voltages of an induction motor under hard-and soft-switching inverter excitation,” IEEE Trans. Ind. App., Vol. 34, No. 5, pp. 1042-1048, Sep. 1998. https://doi.org/10.1109/28.720444
  11. S. Sato, Y. Suehiro, S-I. Nagai, and K. Morit, "High efficiency soft-switching 3-phase PWM rectifier," in Telecommunications Energy Conference, pp. 453-460, 2000.
  12. S. Pan, J. Pan, and Z. Tian, “A shifted SVPWM method to control DC-link resonant inverters and its FPGA realization,” IEEE Trans. Ind. Electron., Vol. 59, No. 9, pp. 3383-3391, Sep. 2012. https://doi.org/10.1109/TIE.2011.2173891
  13. S. Mandrek and P. J. Chrzan, “Quasi-resonant dc-link inverter with a reduced number of active elements,” IEEE Trans. Ind. Electron., Vol. 54, No. 4, pp. 2088-2094, Aug. 2007. https://doi.org/10.1109/TIE.2007.895143
  14. J. Kedarisetti and P. Mutschler, “A motor-friendly quasiresonant DC-link inverter with lossless variable zerovoltage duration,” IEEE Trans. Power Electron., Vol. 27, No. 5, pp. 2613-2622, May 2012. https://doi.org/10.1109/TPEL.2011.2174382
  15. R. W. D. Doncker and J. P. Lyons, "The auxiliary resonant commutated pole converter," in Industry Applications Society Annual Meeting, pp. 1228-1235, 1990.
  16. S. Karys. "Selection of resonant circuit elements for the ARCP inverter," in Electrical Power Quality and Utilisation, pp. 1-6, 2009.
  17. T. D. Batzel and K. Adams, "Variable timing control for ARCP voltage source inverters operating at low DC voltage," in Transportation Electrification Conference and Expo (ITEC), pp. 1-8, 2012.
  18. M. Amirabadi, J. Baek, H. A. Toliyat, and W. C. Alexander, "Soft-switching AC-link three-phase AC-AC buck-boost converter," IEEE Trans. Ind. Electron., Vol. 62, No. 1, pp. 3-14, Jan. 2015. https://doi.org/10.1109/TED.2015.2456193
  19. M. Amirabadi, J. Baek, and H. A. Toliyat, “Bidirectional soft-switching series ac-link inverter,” IEEE Trans. Ind. App., Vol. 51, No. 3, pp. 2312-2320, May 2015. https://doi.org/10.1109/TIA.2014.2362963
  20. M. Amirabadi, J. Baek, and H. A. Toliyat, "Sparse ac-link buck-boost inverter," IEEE Trans. Power Electron., Vol. 29, No. 8, pp. 3942-3953, Aug. 2014. https://doi.org/10.1109/TPEL.2014.2304953
  21. H. Xi, A. Chen, H. Wu, Y. Deng, and R. Zhao, “Simple passive lossless snubber for high power multilevel inverters,” IEEE Trans. Ind. Electron., Vol. 53, No. 3, pp. 727-735, June, 2006. https://doi.org/10.1109/TIE.2006.874422
  22. M. W. Gekeler, "Soft switching three level inverter with passive snubber circuit (S3L)," in Power Electronics and Applications (EPE 2011), pp. 1-10, 2011.
  23. F. G. Stein and Y. R. Novaes, "Analysis of a snubber for the T-Type NPC Converter", in International Symposium on Industrial Electronics (ISIE 2015), pp. 239-244, 2015.
  24. D. Leuenberger and J. Biela, "Comparison of a softswitched TCM T-type inverter to hard switched inverter for a 3 phase PV grid interface", in Power Electronics and Motion Control Conference (EPEPEMC), pp.1-8, 2012.
  25. X. Yuan, H. Stemmler and I. Barbi, "Evaluation of soft switching techniques for the neutral-point-clamped inverter," in Proc. IEEE PESC, pp. 659-664, 1999.
  26. Y. Sahin, N. S. Ting, E. Akboy, and I. Aksoy, "A new soft switching three level T-type inverter," in 2016 10th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG), pp. 314-318, 2016.
  27. T. Chen and M. Narimani, "A new ZVZCS three-level inverter," in Industrial IECON 2017-43rd Annual Conference of the IEEE, pp. 601-606, 2017.
  28. D. Maksimovic and S. Cuk, “Constant-frequency control of quasi-resonant converters,” IEEE Trans. Power Electron., Vol. 6, No. 1, pp. 141-150, Jan. 1991. https://doi.org/10.1109/63.65012
  29. D. Maksimovic and S. Cuk, “A general approach to synthesis and analysis of quasi-resonant converters,” IEEE Trans. Power Electron., Vol. 6, No. 1, pp. 127-140, Jan. 1991. https://doi.org/10.1109/63.65011
  30. W. A. Tabisz and F. C. Y. Lee, “Zero-voltage-switching multiresonant technique-a novel approach to improve performance of high-frequency quasi-resonant converters,” IEEE Trans. Power Electron., Vol. 4, No. 4, pp. 450-458, Oct. 1989. https://doi.org/10.1109/63.41774
  31. E. Dallago, R. Quaglino, and G. Sassone, “Single-cycle quasi-resonant converter with controlled timing of the power switches,” IEEE Trans. Power Electron., Vol. 11, No. 2, pp. 292-298, Mar. 1996.
  32. BOURNS, SRP1770TA Series Datasheet, https://www.bourns.com/docs/product-datasheets/srp1770ta.pdf?sfvrsn=228d91f1_28, 2019.
  33. Micrometals, General Material Properties, https://www.micrometals.com/materials, 2019.