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Cascaded H-bridge PWM 멀티레벨인버터의 스위칭 손실 저감을 위한 효율적인 스위칭 패턴

Efficient Switching Pattern to Decrease Switching Losses in Cascaded H-bridge PWM Multilevel Inverter

  • Jeong, Bo Chang (Dept. of Electronics and Control Engineering, Hanbat National University) ;
  • Kim, Sun-Pil (Dept. of Electrical Engineering, Chonnam National University) ;
  • Kim, Kwang Soo (Dept. of Electronics and Control Engineering, Hanbat National University) ;
  • Park, Sung-Jun (Dept. of Electrical Engineering, Chonnam National University) ;
  • Kang, Feel-Soon (Dept. of Electronics and Control Engineering, Hanbat National University)
  • 투고 : 2012.11.16
  • 심사 : 2013.03.25
  • 발행 : 2013.04.01

초록

It presents an efficient switching pattern, which expects a reduction of switching losses in a cascaded H-bridge PWM multilevel inverter. By the proposed switching scheme, the lower H-bridge module operates at low frequency of 60[Hz] because it assigns to transfer most load power. The upper H-bridge module operates at high frequency of PWM switching to improve THD of output voltage. The proposed switching pattern applies to cascaded H-bridge multilevel inverter with PD, APOD, bipolar, and unipolar switching methods. By computer-aided simulations, we verify the validity of the proposed switching scheme. Finally, we prove that the proposed PD and APOD switching patterns are better than those of the conventional one in efficiency.

키워드

참고문헌

  1. M. Malinowski, K. Gopakumar, J. Rodriguez, and M. A. Perez, "A Survey on Cascaded Multilevel Inverters," IEEE Trans. Ind. Electron., vol. 57, no. 7, pp. 2197-2206, July 2010. https://doi.org/10.1109/TIE.2009.2030767
  2. H. Abu-Rub, J. Holtz, J. Rodriguez, and Ge Baoming, "Medium-Voltage Multilevel Converters State of the Art, Challenges, and Requirements in Industrial Applications," IEEE Trans. Ind. Electron., vol. 57, no. 8, pp. 2581-2596, Aug. 2010. https://doi.org/10.1109/TIE.2010.2043039
  3. J. Rodriguez, J.-S. Lai, and F. Z. Peng, "Multilevel inverters: A survey of topologies, controls, and applications," IEEE Trans. Ind. Electron., vol. 49, no. 4, pp. 724-738, Aug. 2002. https://doi.org/10.1109/TIE.2002.801052
  4. L. G. Franquelo, J. L. Rodriguez, J. Leon, S. Kouro, R. Portillo, and M. A. Prats, "The age of multilevel converters arrives," IEEE Ind. Electron. Mag., vol. 2, no. 2, pp. 28-39, Jun. 2008. https://doi.org/10.1109/MIE.2008.923519
  5. J.-S. Lai and F. Z. Peng, "Multilevel converters—A new breed of power converters," IEEE Trans. Ind. Appl., vol. 32, no. 3, pp. 509-517, May 1996. https://doi.org/10.1109/28.502161
  6. F. S. Kang, S. J. Park, S. E. Cho, C. U. Kim, and T. Ise, "Multilevel PWM inverters suitable for the use of stand-alone photovoltaic power systems," IEEE Trans. Energy Conv., vol. 20, no. 4, pp. 906-915, 2005. https://doi.org/10.1109/TEC.2005.847956
  7. Hong Un-Taek, Choi Won-Kyun, Kwon Cheol-Soon, Kang Feel-Soon, "Hybrid Multilevel Inverter Connecting a Full-bridge Inverter to a 5-level Inverter in Series", The Transactions of the Korean Institute of Power Electronics, vol. 16, no. 1, pp.30-37, 2011. https://doi.org/10.6113/TKPE.2011.16.1.30
  8. Choi Won-Kyun, Kwon Cheol-Soon, Hong Un-Taek, Kang Feel-Soon, "Multilevel Inverter using Two 5-level Inverters Connected in Series", The Transactions of the Korean Institute of Power Electronics, vol. 15, no. 5, pp.376-380, 2010. https://doi.org/10.6113/TKPE.2010.15.5.376
  9. Sun Pil Kim, Bo Chang Jung, Feel-soon Kang, "iconManInfoEfficient switching pattern for cascaded H-bridge multilevel inverter", KIEE Annual Conference, pp. 1167-1168, July 2011
  10. Y. Liu, H. Hong, and A. Q. Huang, "Real-time calculation of switching angles minimizing THD for multilevel inverters with step modulation," IEEE Trans. Ind. Electron., vol. 56, no. 2, pp. 285-293, Feb. 2009. https://doi.org/10.1109/TIE.2008.918461
  11. J. Sun, S. Beineke, and H. Grotstollen, "Optimal PWM based on realtime solution of harmonic elimination equations," IEEE Trans. Power Electron., vol. 11, no. 4, pp. 612-621, Jul. 1996. https://doi.org/10.1109/63.506127
  12. B. Velaerts, and P. Mathys, "Study of 2 and 3-level precalculated Modulations," in Proc. EPE'91 Conf., vol. 3, pp. 228-234.
  13. N. Mohan, T. M. Undeland, and W. P. Robbins, Power Electronics; Converters, Applications, and Design, 2nd Edition, JOHN WILEY & SONS, INC. pp. 202-218, 1995.