Title :
Extended state estimation of nonlinear modeled induction machines
Author :
von Westerholt, E. ; Pietrzak-David, M. ; de Fornel, B.
Author_Institution :
Lab. d´´Electrotech. et d´´Electron. Ind., CNRS, Toulouse, France
fDate :
29 Jun-3 Jul 1992
Abstract :
The authors report on the extended state estimation of induction machines. Based on a smoothly nonlinear machine model, local observability is analyzed for operation both with and without a speed sensor. An extended Kalman filter is designed so as to estimate not only electromagnetic quantities and the rotation speed, but also the load torque. Simulations demonstrate its excellent performance for sensorless field-oriented control
Keywords :
State estimation; asynchronous machines; control system analysis; machine control; nonlinear control systems; state estimation; velocity control; asynchronous machines; control system analysis; extended Kalman filter; extended state estimation; load torque; local observability; nonlinear machine model; performance; sensorless field-oriented control; velocity control; Control systems; Electric variables measurement; Friction; Induction machines; Induction motor drives; Rotation measurement; Sensorless control; State estimation; Stators; Torque;
Conference_Titel :
Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE
Conference_Location :
Toledo
Print_ISBN :
0-7803-0695-3
DOI :
10.1109/PESC.1992.254662
