ADAPTIVE SPR SPEED/POSITION CONTROL OF INDUCTION MOTOR

Abstract This paper proposes an adaptive speed/position tracking control of an induction motor subject to unknown load torque via strictly positive real (SPR) analysis. The controller is developed under a special nonlinear coordinate transform such that either speed or position control objective can be fulfilled. The underlying design concepts are to endow the close-loop system while under lack of knowledge of some key system parameters, such as the rotor resistance, motor inertia and motor damping coefficient. The proposed control scheme comes along with a thorough proof derived based on Lyapunov stability theory. The experimental results are also given to validate the effectiveness of the presented control scheme.

[1]  Dong-Seok Hyun,et al.  An improved stator flux estimation for speed sensorless stator flux orientation control of induction motors , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[2]  Li-Chen Fu,et al.  Nonlinear control of induction motor with unknown rotor resistance and load adaptation , 2001, Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148).

[3]  H. Tajima,et al.  Speed sensorless field orientation control of the induction machine , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[4]  Andrea Bacciotti,et al.  External stabilizability of nonlinear systems with some applications , 1998 .

[5]  Gerardo Espinosa-Pérez,et al.  TORQUE AND FLUX TRACKING OF INDUCTION MOTORS , 1997 .

[6]  Li-Chen Fu,et al.  Speed tracking control with maximal power transfer of induction motor , 2000, Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187).

[7]  Romeo Ortega,et al.  Torque regulation of induction motors, , 1993, Autom..

[8]  Li-Chen Fu,et al.  Nonlinear sensorless indirect adaptive speed control of induction motor with unknown rotor resistance and load , 1999, Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251).

[9]  Li-Chen Fu,et al.  Exponentially stable non-linear control for speed regulation of induction motor with field-oriented PI-controller , 2000 .

[10]  F. Blaabjerg,et al.  A modified direct torque control (DTC) for induction motor sensorless drive , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[11]  Riccardo Marino,et al.  Global adaptive output feedback control of induction motors with uncertain rotor resistance , 1996, Proceedings of 35th IEEE Conference on Decision and Control.

[12]  Riccardo Marino,et al.  Adaptive observer‐based control of induction motors with unknown rotor resistance , 1996 .

[13]  R. Krishnan,et al.  A review of parameter sensitivity and adaptation in indirect vector controlled induction motor drive systems , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[14]  Anuradha M. Annaswamy,et al.  Stable Adaptive Systems , 1989 .