Title :
Nonlinear control for sensorless induction motor drives
Author :
Pietrzak-David, M. ; de Fornel, B. ; Purwoadi, M. Andreas
Author_Institution :
INPT, UMR, Toulouse, France
Abstract :
A original approach is presented for the problem of nonlinear control for sensorless induction motor drives. Two aspects are studied in this paper, the rotor flux and rotation speed simultaneous observation and the nonlinear control of the induction motor. The use of the Popov hyperstability theory permits to realize an adaptive state observer (MRAS technique). The speed and flux controllers can be defined only after an "input-output linearization procedure" of the PWM inverter fed induction motor drive. The overall control system (observer structure and control laws) is developed around the DSP 32C from AT&T society.
Keywords :
PWM invertors; Popov criterion; angular velocity control; digital signal processing chips; induction motor drives; linearisation techniques; machine control; magnetic flux; nonlinear control systems; observers; rotors; AT&T society; DSP 32C; PWM inverter; Popov hyperstability theory; adaptive state observer; flux controller; linearization procedure; nonlinear control; rotor flux; sensorless induction motor drive; speed controller; Adaptive control; Control systems; Induction motor drives; Induction motors; Nonlinear dynamical systems; Programmable control; Pulse width modulation inverters; Rotors; Sensorless control; Velocity measurement;
Conference_Titel :
Power Electronic Drives and Energy Systems for Industrial Growth, 1998. Proceedings. 1998 International Conference on
Print_ISBN :
0-7803-4879-6
DOI :
10.1109/PEDES.1998.1330032
