Journal of Power Electronics

  • 제8권4호
  • /
  • Pages.345-353
  • /
  • 2008
  • /
  • 1598-2092(pISSN)
  • /
  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
권호 표지

Optimal Efficiency Control of Induction Generators in Wind Energy Conversion Systems using Support Vector Regression

  • 발행 : 2008.10.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a novel loss minimization of an induction generator in wind energy generation systems is presented. The proposed algorithm is based on the flux level reduction, for which the generator d-axis current reference is estimated using support vector regression (SVR). Wind speed is employed as an input of the SVR and the samples of the generator d-axis current reference are used as output to train the SVR algorithm off-line. Data samples for wind speed and d-axis current are collected for the training process, which plots a relation of input and output. The predicted off-line function and the instantaneous wind speed are then used to determine the d-axis current reference. It is shown that the effect of loss minimization is more significant at low wind speed and the loss reduction is about to 40% at 4[m/s] wind speed. The validity of the proposed scheme has been verified by experimental results.

키워드

참고문헌

  1. M.G. Simoes, B.K. Bose, R.J. Spiegel, "Fuzzy logic based intelligent control of a variable speed cage machine wind generation system", IEEE Trans. on Power Electron., Vol. 12. No. 1, pp. 87- 95, Jan. 1997 https://doi.org/10.1109/63.554173
  2. Q. Wang, L. Chang, "An intelligent maximum power extraction algorithm for inverter-based variable speed wind turbine systems", IEEE Trans. on Power Electron., Vol. 19, No. 5, pp. 1242-1249, Sept. 2004 https://doi.org/10.1109/TPEL.2004.833459
  3. F. F. M. El-Sousy, M. Orabi, H. Godah, "Maximum power point tracking control scheme for grid connected variable speed wind driven self-excited induction generator", Journal of Power Electron., Vol. 6, No. 1, pp. 45-51, Jan. 2006
  4. K. Matsuse, T. Yoshizumi, S. Katsuta, S. Taniguchi, "High-response flux control of direct-field-oriented induction motor with high efficiency taking core loss into account", IEEE Trans. on Ind. Appl., Vol. 35, No. 1, pp. 62-69, Jan./Feb. 1999 https://doi.org/10.1109/28.740846
  5. M.G. Simoes, B.K. Bose, R.J. Spiegel, "Design and performance evaluation of fuzzy-logic-based variable -speed wind generation system", IEEE Trans .on Ind. Appl., Vol. 33, No. 4, pp. 956- 964, 1997 https://doi.org/10.1109/28.605737
  6. R. Leidhold, G. Garcia, M. I. Valla, "Field-oriented controlled induction generator with loss minimization", IEEE Trans. on Ind. Electron., Vol. 49, No. 1, pp. 147-156, 2002 https://doi.org/10.1109/41.982258
  7. S.-M. Yang, F-C Lin, "Loss-minimization control of vector-controlled induction motor drives", IEEE PEDS Conf. proc., Vol. 1, pp. 182-187, Oct. 2001
  8. G. C Sousa, B. K. Bose, J. G. Cleland, "Fuzzy logic based on-line efficiency optimization control of an indirect vector-controlled induction motor drive", IEEE Trans. on Ind. Electron., Vol. 42, No. 2, pp. 192-198, Apr. 1995 https://doi.org/10.1109/41.370386
  9. I. K. Buehring, L. L. Freris, "Control policies for wind energy conversion systems", IEE Proceeding, Vol. 128, No. 5, pp. 253-261, Sept. 1981
  10. R. Hilloowala, A. M. Sharaf, "A rule-based fuzzy logic controller for a PWM inverter in a stand alone wind energy conversion scheme", IEEE Trans. Ind. App., Vol. 32, No. 1, pp. 57-65, Jan. 1996 https://doi.org/10.1109/28.485813
  11. R. Datta, V. R. Ranganathan, "A method of tracking the peak power points for a variable speed wind energy conversion system", IEEE Trans. Energy Conv., Vol. 18, No. 1, pp. 163-168, March 2003 https://doi.org/10.1109/TEC.2002.808346
  12. K.-R Nuller, A. J. Smola, G. Ratsch, B. Scholkopf, J. Kohlmorgen, V. Vapnik, "Predicting time series with support vector machine", ICANN'97 Proc., pp. 999-1004, 1997
  13. A. Grauers, "Efficiency of three wind generation systems", IEEE Trans. Energy Conv., Vol. 11, No. 3, pp. 650-657, Sept. 1996 https://doi.org/10.1109/60.537038
  14. A. Inoue, A. M. Hasan, R. Takahashi, T. Murata, J. Tamura, M. Kimura, M. Futami, M. Ichinose, Ide Kazumasa, "A calculation method of the total efficiency of wind generator", IEEE PEDS Proc., Vol. 2, pp. 1595-1600, 2005
  15. F. Abrahamsen, F. Blaabjerg, J. K. Pedersen, P. B. Thoegersen, "Efficiency-optimized control of medium-size induction motor drives", IEEE Trans. Ind. Appl., Vol. 37. No. 6, pp. 1761-1767, Nov.-Dec. 2001 https://doi.org/10.1109/28.968189
  16. Z. Lubosny, "Wind turbine operation in electric power systems", Springer-Verlag, 2003
  17. V. Cherkassky, F. Miller, Learning from data concepts, theory and methods, Wiley, 1998
  18. K. R. Cho, J. K. Seok, D.-C. Lee, "Mechanical parameter identification of servo systems using robust support vector regression", IEEE PESC Proc., Vol. 5, pp. 3425-3430, June 2004
  19. A. G. Abo-Khalil, H.-G. Kim, D.-C. Lee, J.-K. Seok, "Maximum output power control of wind generation system considering loss minimization of machines", IEEE IECON Proc., Vol. 2, pp. 1676-1681, Nov. 2004