Title :
Adaptive sliding-mode observer for speed-sensorless control of induction motors
Author :
Tursini, Marco ; Petrella, Roberto ; Parasiliti, Francesco
Author_Institution :
Dept. of Electr. Eng., Univ. of L´´Aquila, Italy
Abstract :
This paper presents an adaptive sliding-mode observer for the speed-sensorless field-oriented control of induction motors. The observer detects the rotor flux components in the two-phase stationary reference frame by the motor electrical equations. The motor speed is estimated by an additional relation obtained by a Lyapunov function. The analytical development of the sliding observer and the speed estimation algorithm is fully explained. Experimental results are presented, based on a TMS320F240 digital signal processor controller implementation. The system performance with different observer gains and the influence of the motor parameters deviations are shown and discussed
Keywords :
Lyapunov methods; adaptive control; control system synthesis; induction motors; machine testing; machine theory; machine vector control; observers; parameter estimation; variable structure systems; velocity control; Lyapunov function; TMS320F240 DSP controller; adaptive sliding-mode observer; control design; induction motors; motor electrical equations; motor parameters deviations; observer; observer gains; rotor flux components; speed estimation algorithm; speed-sensorless control; two-phase stationary reference frame; Adaptive control; Algorithm design and analysis; Digital signal processors; Equations; Induction motors; Lyapunov method; Programmable control; Rotors; Signal processing algorithms; Sliding mode control;
Journal_Title :
Industry Applications, IEEE Transactions on
