Title :
Nonlinear control of a permanent magnet synchronous motor with disturbance torque estimation
Author :
Solsona, J. ; Valla, M.I. ; Muravchik, C.
Author_Institution :
Fac. de Ingenieria, Univ. Nacional de La Plata, Argentina
Abstract :
This paper introduces a sensorless nonlinear control scheme for controlling the speed of a permanent magnet synchronous motor (PMSM) driving an unknown load torque. The states of the motor and disturbance torque are estimated via an extended nonlinear observer avoiding the use of mechanical sensors. The control strategy is an exact feedback linearization law, with trajectory tracking evaluated on estimated values of the PMSM states and the disturbance torque. The system performance is evaluated by simulations
Keywords :
feedback; linearisation techniques; machine control; nonlinear control systems; parameter estimation; permanent magnet motors; synchronous motors; torque; disturbance torque; disturbance torque estimation; exact feedback linearization law; extended nonlinear observer; motor torque; nonlinear control; permanent magnet synchronous motor; sensorless nonlinear control scheme; system performance evaluation; trajectory tracking; unknown load torque; Linear feedback control systems; Mechanical sensors; Observers; Permanent magnet motors; Sensorless control; State estimation; State feedback; Synchronous motors; Torque control; Trajectory;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.671032
