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 ex-ploit 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 experimental tests.

A Robust Control Scheme for Induction Motor Drives for Applications in the Field-Weakening Speed Range

CASADEI, DOMENICO;MENGONI, MICHELE;SERRA, GIOVANNI;TANI, ANGELO;ZARRI, LUCA
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 ex-ploit 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 experimental tests.
Proceeding of Power Conversion Intelligent Motion Conference (PCIM) 2007
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6
D. Casadei; M. Mengoni; G. Serra; A. Tani; L. Zarri
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/48193
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