Title :
Sensorless indirect field oriented control of induction motor via adaptive speed observer
Author :
Montanari, Marcella ; Peresada, Sergei ; Tilli, Andrea
Author_Institution :
CASY - DEIS, Bologna Univ., Italy
Abstract :
This work deals with the speed/rotor flux control of a sensorless induction motor, i.e. without speed measurement. A solution based on an indirect field oriented control scheme and an adaptive speed observer which relies on the electromagnetic dynamics of the machine is proposed. In the stability analysis, persistency of excitation has been exploited to prove local exponential stability of the closed-loop system. Simulation tests show the performance of the controller.
Keywords :
asymptotic stability; closed loop systems; control system synthesis; electromagnetic forces; induction motors; machine vector control; observers; velocity control; adaptive speed observer; closed-loop system; excitation persistency; induction motor; local exponential stability; machine electromagnetic dynamics; rotor flux control; sensorless indirect field oriented control; speed flux control; stability analysis; Adaptive control; Costs; Electromagnetic fields; Induction motors; Magnetic flux; Programmable control; Rotors; Sensorless control; Stability analysis; Torque control;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1242461
