The Transactions of the Korean Institute of Electrical Engineers D (대한전기학회논문지:시스템및제어부문D)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Sliding Mode Control of Induction Motors Using an Adaptive Sliding Mode Flux Observer

적응 슬라이딩모드 자속 관측기를 이용한 인덕션 모터의 슬라이딩 모드 제어

  • Published : 2005.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

An adaptive observer for rotor resistance is designed to estimate rotor flux for the a-b model of an induction motor assuming that rotor speed and stator currents are measurable. A singularly perturbed model of the motor is used to design an Adaptive sliding mode observer which drives the estimated stator currents to their true values in the fast time scale. The adaptive observer on the sliding surface is based on the equivalent switching vector and both the estimated fluxes and the estimated rotor resistance converge to their true values. A speed controller considering the effects of parameter variations and external disturbance is proposed in this paper. First, induction motor dynamic model at nominal case is estimated. based on the estimated model, speed controller is designed to match the prescribed speed tracking specifications. Then a dead-time compensator and a robust controller are designed to reduce the effects of parameter variations and external disturbances. the desired speed tracking control performance can be preserved under wide operating range, and good speed load regulating performance. Some simulated results are provided to demonstrate the effectiveness of the Proposed controller.

Keywords

References

  1. B. K. Bose, Power Electronics and AC Drives, Prentice-Hall, 1986
  2. Marino ,R., S. Peresada and P.Tomei, 'Adaptive observer-based control of induction motors with unknown rotor resistance'. Int, Journal of Adaptive,1996. Control and Signal Processing, vol.10,345-363 https://doi.org/10.1002/(SICI)1099-1115(199607)10:4/5<345::AID-ACS367>3.0.CO;2-8
  3. R. Marino, S. Peresada, and P. Valigi, 'Adaptive input-output linearization control of induction motor,' IEEE Trans. Automat. Contr., Vol. 38, pp. 208-221, 1993 https://doi.org/10.1109/9.250510
  4. R. Soto and K.S. Yeung, 'Sliding-mode control of an induction motor without flux measurement' Proceedings of 27th Annual Meeting of IEEE Industry Applications Society, 1992 https://doi.org/10.1109/IAS.1992.244227
  5. R. Marino, S. Peresada, and P. Tomei, 'Adaptive Output Feedback Control of Current-Fed Induction Motors with Uncertain Rotor Resistance and Load Torque' Automatica, Vol. 34, pp. 617-624, 1998 https://doi.org/10.1016/S0005-1098(97)00212-4
  6. C. M. Kwan, F. L. Lewis, and K. S. Yeung, 'Adaptive Control of Induction Motors without Flux Measurement,' Automatica, Vol. 32, pp. 903-908, 1996 https://doi.org/10.1016/0005-1098(96)00012-X
  7. W. Leonard, Control of Electric Drives. Berlin : Springer-Verlag, 1985
  8. R. Soto and K.S. Yeung, 'Sliding-mode control of an induction motor without flux measurement' Proceedings of 27th Annual Meeting of IEEE Industry Applications Society, 1992 https://doi.org/10.1109/IAS.1992.244227
  9. C. M. Kwan, F. L. Lewis, and K. S. Yeung, 'Adaptive Control of Induction Motors without Flux Measurement,' Automatica, Vol. 32, pp. 903-908, 1996 https://doi.org/10.1016/0005-1098(96)00012-X
  10. Peter V. Kokotovic, Hassan K.Khalil and John O'Reilly, 'Singular Perturbation Method in Control; Analysis and Design.' Academic Press, New York, 1986
  11. M. Kristic, I. Kanellakopoulos, and P. Kokotovic, Nonlinear and Adaptive Control Design, John Willy & Sons, 1995
  12. V. I. Utkin, 'Variable Structure Systems with Sliding Modes', IEEE Trans. Automat. Contr., vol. AC-22, No.2, pp. 212-222, 1977 https://doi.org/10.1109/TAC.1977.1101446