Title :
Stator Flux Vector Control of Induction Motor Drives in the Field-Weakening Region
Author :
Mengoni, Michele ; Zarri, Luca ; Tani, Angelo ; Rossi, Claudio ; Serra, Giovanni ; Casadei, Domenico
Author_Institution :
University of Bologna - Department of Electrical Engineering, Viale Risorgimento 2, 40138 Bologna - Italy
fDate :
Feb. 25 2007-March 1 2007
Abstract :
A torque control scheme that utilizes the stator flux components as control variables, applied to a speed-sensorless induction motor drive, is presented. The proposed scheme allows the motor to exploit the maximum torque capability in the whole speed range, and shows a reduced dependence from the motor parameters. It is based on a control algorithm that decreases the d-component of the stator flux as soon as the voltage corresponding to the maximum torque exceeds the available voltage. The control scheme produces a smooth transition into and out of the field weakening region and preserves the torque dynamic. The feasibility of the field weakening technique is confirmed by computer simulations and experimental tests.
Keywords :
Induction motor drives; Induction motors; Machine vector control; Regulators; Robustness; Rotors; Stators; Testing; Torque control; Voltage control;
Conference_Titel :
Applied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-4244-0713-3
DOI :
10.1109/APEX.2007.357516