Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Improving the Dynamic Performance of Distribution Electronic Power Transformers Using Sliding Mode Control

  • Received : 2011.04.20
  • Accepted : 2011.11.19
  • Published : 2012.01.20
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Abstract

These days, the application of electronic power transformers (EPTs) is expanding in place of ordinary power transformers. These transformers can transmit power via three or four wire converters. Their dynamic performance is extremely important, due to their complex structure. In this paper, a new method is proposed for improving the dynamic performance of distribution electronic power transformers (DEPT) by using sliding mode control (SMC). Hence, to express the dynamic characteristics of a system, different factors such as the voltage unbalance, voltage sag, voltage harmonics and voltage flicker in the system primary side are considered. The four controlling aims of the improvement in dynamic performance include: 1) maintaining the input currents so that they are in sinusoidal form and in phase with the input voltages so they have a unity power factor, 2) keeping the dc-link voltage within the reference amount, 3) keeping the output voltages at a fixed amount and 4) keeping the output voltages in sinusoidal and symmetrical forms. Simulation results indicate the potential and capability of the proposed method in improving DEPT behavior.

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References

  1. M. D. Manjrekar, R. Kiefemdorf, and G. Venkataramanan, "Power electronic transformer for utility application," in Proc. 2000 IEEE IAS Annual Meeting, pp. 2496-2502, 2000.
  2. C. Mao, J. Lu, S. Fan, and H. Fang, "Power electronic transformer," China Patent ZL 02 1 39030.4, 2002.
  3. J. Cheng, C. Mao, S. Fan, and D. Wang, "Principle of electronic power transformer and its simulation study," Electr. Power Autom. Equip, Vol. 24, No. 12, pp. 23-25, 2004.
  4. S. Fan, C. X. Mao, and L. Chen, "Optimal coordinated PET and generator excitation control for power systems," Int. J. Electr. Power Energy Syst, Vol. 28, No. 3, pp. 158-165, Mar. 2006. https://doi.org/10.1016/j.ijepes.2005.11.001
  5. D. Wang, C. X. Mao, and J .M. Lu, "Modeling of electronic power transformer and its application to power system," IET Gener, Transm. Distrib., Vol. 6, No. 1, pp. 887-895, Nov. 2007.
  6. D. Wang, C. X. Mao, J. M. Lu, and S. Fan, "Electronic power transformer based power quality control method," High Volt. Eng. Vol. 31, No. 8, pp. 63-65, 2005.
  7. D. Wang, C. X. Mao, and J. M. Lu, "Coordinated control of EPT and generator excitation system for multidouble-circuit transmission-lines system," IEEE Trans. Power Del., Vol. 23, No. 1, pp. 371-379, Jan. 2008. https://doi.org/10.1109/TPWRD.2007.905552
  8. E. R. Ronan, S. D. Sudhoff, S. F. Glover, and D. L. Galloway, "A power electronic-based distribution transformer," IEEE Trans. Power Del., Vol. 17, No. 2, pp. 537-543, Apr. 2002. https://doi.org/10.1109/61.997934
  9. M. Kang, P. N. Enjeti, and I. J. Pitel, "Analysis and design of electronic transformers for electric power distribution system," IEEE Trans. on Power Electronics, Vol. 14, No. 6, pp. 1133-1141, Nov. 1999. https://doi.org/10.1109/63.803407
  10. D. Wang, C. X. Mao, J. M. Lu, S. Fan, and F. Z. Peng, "Theory and application of distribution electric power transformer," Electr. Power Syst. Res, Vol. 77, No. 3-4, pp. 219-226, 2007. https://doi.org/10.1016/j.epsr.2006.02.012
  11. H. B. Liu, C. X. Mao, J. M. Lu, and D. Wang, "Parallel operation of electronic power transformer and conventional transformer," Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies, pp. 1802-1808, 2008.
  12. M. Marchesoni, R. Novaro, and S. Savio, "AC locomotive conversion systems without heavy transformer: is it a practicable solution," in Proc. 2002 IEEE Int. Symp. Industrial Electronics, pp. 1172-1177, 2002.
  13. K. Harada, F. Anan, K. Yamasaki, M. Jinno, Y. Kawata, T. Nakashima, K. Murata, and H. Sakamoto, "Intelligent transformer," in Proceedings of the 1996 IEEE PESC Conference, pp. 1337-1341, 1996.
  14. M. E. Fraser, C. D. Manning, and B. M. Wells, "Transformerless fourwire PWM rectifier and its application in ac-dc-ac converters," IEEE Proc. Electr. Power, Vol. 142, No. 6, pp. 410-416, 1995. https://doi.org/10.1049/ip-epa:19952278
  15. J. Kassakian, M. Schlecht, and G. Verghese, "Principles of Power Electronics," Addison-Wesley, 1991.
  16. G. B. Zhang, Z. Xu, and G. Z. Wang, "Steady-state model and its nonlinear control for VSC-HVDC system," in Proceedings of the CSEE, Vol. 22, No. 1, pp. 17-22, 2002.
  17. S. Fukuda, Y. Matsumoto, and A. Sagawa, "Optimal-regulator-based control of NPC boost rectifier for unity power factor and reduced neutralpoint- potential variations," IEEE Trans. Ind. Electon., Vol. 46, No. 3, pp. 527-534, Jun. 1999. https://doi.org/10.1109/41.767059
  18. D. E. Kirk, "Optimal Control Theory," Prentice-Hall, 2000.
  19. H. B. Liu, C. X. Mao, J. M. Lu, and D. Wang, "Optimal regulatorbased control of electronic power transformer for distribution systems," Electric Power Systems Research, Vol. 79, pp. 863-870, 2009. https://doi.org/10.1016/j.epsr.2008.11.003
  20. L. Jinkun and S. Fuchun, "Research and development on theory and algorithms of sliding mode control," Control Theory and Applications, Chinese, Vol. 24, pp. 407-418, 2007.
  21. D. Zhanfeng and Z. Dongqi, "A hybrid power filter based on sliding mode control," Transactions of China Electrotechnical Society, Chinese, Vol. 17, pp. 92-95, 2002.

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