Title :
Speed sensorless DTC of induction motor based on an improved adaptive flux observer
Author :
Belkacem, S. ; Naceri, F. ; Betta, A. ; Laggoune, L.
Author_Institution :
LEB-Research Lab., Batna Univ.
Abstract :
This paper presents a method for estimation of the stator flux components and rotor speed based on the theory of an adaptive control and a direct torque control (DTC). A linear observer for estimation of the stator flux is synthesized, by using a Lyapunov theory in order to guarantee stability for state estimation. The adaptive observer is associated to a direct torque control of an induction motor. To illustrate the performances and the robustness of this observer, a simulation results is presented
Keywords :
Lyapunov methods; adaptive control; induction motors; machine control; magnetic flux; matrix algebra; observers; rotors; stators; torque control; Lyapunov theory; adaptive control theory; adaptive flux observer; direct torque control; induction motor; linear observer; rotor speed; speed sensorless DTC; state estimation; stator flux estimation; Adaptive control; Induction motors; Observers; Programmable control; Robustness; Rotors; Stability; State estimation; Stators; Torque control; Adaptive flux and speed observer; DTC; Sensorless control; regulator design;
Conference_Titel :
Industrial Technology, 2005. ICIT 2005. IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-9484-4
DOI :
10.1109/ICIT.2005.1600816
