Sensorless Sliding-Mode Control of Induction Motors Using Operating Condition Dependent Models

A sensorless torque control system for induction motors has been developed. The system allows for fast and precise torque tracking over a wide range of speed. This paper also presents the identification and parameter estimation of an induction motor model with parameters varying as functions of the operating conditions encountered in hybrid electric vehicles applications. An adaptive sliding-mode speed-flux observer is developed and a cascade of discrete time sliding-mode controllers is used for flux and current control. Simulation and experimental results prove the validity of the approach.

[1]  C. Schauder,et al.  Adaptive speed identification for vector control of induction motors without rotational transducers , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[2]  Vadim I. Utkin,et al.  Sliding mode control in electromechanical systems , 1999 .

[3]  Pragasen Pillay,et al.  Application of genetic algorithms to motor parameter determination for transient torque calculations , 1997 .

[4]  Hamid A. Toliyat,et al.  Rotor time constant updating scheme for a rotor flux oriented induction motor drive , 1995 .

[5]  G.R. Slemon,et al.  Modelling of inductance machines for electric drives , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[6]  Longya Xu,et al.  A robust sliding mode observer for speed estimation of induction machine , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[7]  Matthew W. Dunnigan,et al.  A new method of rotor resistance estimation for vector-controlled induction machines , 1997, IEEE Trans. Ind. Electron..

[8]  T. G. Habetler,et al.  A self-tuning, closed-loop flux observer for sensorless torque control of standard induction machines , 1995 .

[9]  Hassan K. Khalil,et al.  A robust torque controller for induction motors without rotor position sensors: analysis and experimental results , 1997 .

[10]  R.D. Lorenz,et al.  Stator and rotor flux based deadbeat direct torque control of induction machines , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[11]  Zhang Yan,et al.  Sensorless sliding-mode control of induction motors , 2000, IEEE Trans. Ind. Electron..

[12]  Robert D. Lorenz,et al.  Transducerless position and velocity estimation in induction and salient AC machines , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[13]  Thomas A. Lipo,et al.  An automated rotor time-constant measurement system for indirect field-oriented drives , 1988 .

[14]  Hamid A. Toliyat,et al.  Propulsion system design of electric and hybrid vehicles , 1997, IEEE Trans. Ind. Electron..

[15]  Rong-Jong Wai,et al.  Robust speed sensorless induction motor drive , 1999 .

[16]  Seung-Ki Sul,et al.  Speed sensorless vector control of induction motor using extended Kalman filter , 1994 .

[17]  Marco Tursini,et al.  Adaptive sliding mode observer for speed sensorless control of induction motors , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[18]  T. Ohtani,et al.  Vector control of induction motor without shaft encoder , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[19]  Jan Melkebeek,et al.  Speed sensorless direct torque control of induction motors using an adaptive flux observer , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[20]  Atsuo Kawamura,et al.  Sensorless very low-speed and zero-speed estimations with online rotor resistance estimation of induction motor without signal injection , 2000 .

[21]  Tadashi Fukao,et al.  Robust speed identification for speed sensorless vector control of induction motors , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[22]  Lu Zhen,et al.  Sensorless field orientation control of induction machines based on a mutual MRAS scheme , 1998, IEEE Trans. Ind. Electron..

[23]  Ali Keyhani,et al.  Nonlinear neural-network modeling of an induction machine , 1999, IEEE Trans. Control. Syst. Technol..

[24]  Joachim Holtz,et al.  High dynamic speed sensorless AC drive with on-line model parameter tuning for steady-state accuracy , 1997, IEEE Trans. Ind. Electron..

[25]  Jennifer Stephan,et al.  Real-time estimation of the parameters and fluxes of induction motors , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[26]  Riccardo Marino,et al.  On-line stator and rotor resistance estimation for induction motors , 2000, IEEE Trans. Control. Syst. Technol..

[27]  X. Xu,et al.  Implementation of direct stator flux orientation control on a versatile DSP based system , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.