Title :
An adaptive controller for speed-sensorless current-fed induction motors with unknown load torque
Author :
Marino, R. ; Tomei, P. ; Verrelli, C.M.
Author_Institution :
Dept. di Ingegneria Elettronica, Univ. di Roma, Rome, Italy
Abstract :
The problem of controlling a sensorless current-fed induction motor (i.e. without rotor speed measurements) is addressed. Smooth reference signals for rotor speed and rotor flux modulus are required to be tracked for any initial condition and unknown constant value of load torque. A new control scheme is presented which guarantees local exponential stability and global asymptotic stability of the closed loop system.
Keywords :
adaptive control; asymptotic stability; closed loop systems; controllers; induction motors; rotors; adaptive controller; asymptotic stability; closed loop system; current fed induction motor; exponential stability; load torque; rotor flux modulus; rotor speed; smooth reference signals; Adaptive control; Asymptotic stability; Closed loop systems; Control systems; Induction motors; Programmable control; Rotors; Sensorless control; Torque control; Velocity measurement;
Conference_Titel :
Control, Automation, Robotics and Vision, 2002. ICARCV 2002. 7th International Conference on
Print_ISBN :
981-04-8364-3
DOI :
10.1109/ICARCV.2002.1235024
