Title :
Full adaptive backstepping design of a speed sensorless field oriented controller for an induction motor
Author :
Rasmussen, H. ; Vadstrup, P. ; Borsting, H.
Author_Institution :
Aalborg Univ., Denmark
Abstract :
It is well known that modern induction motor control relies on a good dynamic model of the motor. Full state variable information together with exact parameter knowledge is needed. The aim of this work is to fulfil these needs by use of a novel nonlinear observer structure based on the backstepping principle. A full proof for convergence of states is presented together with a stability proof for the parameter estimates. When the system is persistently excited, simulations and experiments show convergence of the parameters. The observer is used in a rotor field oriented control strategy and verified by experiments.
Keywords :
adaptive control; angular velocity control; convergence; induction motors; machine theory; machine vector control; observers; parameter estimation; stability; 1.1 kW; convergence of states; dynamic model; exact parameter knowledge; full adaptive backstepping design; full state variable information; induction motor; induction motor control; nonlinear observer structure; parameter estimates; parameters convergence; speed sensorless field oriented controller; stability proof; Adaptive control; Backstepping; Induction motors; Observers; Parameter estimation; Programmable control; Rotors; Sensorless control; State estimation; Stators;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955986
