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VÁCLAVEK, P., BLAHA, P.
Original Title
Flux and Speed Observer for AC Induction Motor Sensorless Control with Stator Resistance Changes Compensation
Type
conference paper
Language
English
Original Abstract
AC induction motors become very popular for motion control applications due to their simple and reliable construction. Control of drives based on AC induction motors is a quite complex task. Provided the vector control algorithm is used we need to know not only the rotor speed but also the position of the magnetic flux inside the motor during the control process. In most applications the flux sensors are omitted and the magnetic flux phasor position has to be calculated. But there are also applications in which even speed sensors should be omitted. In such a situation, we have to solve the task of state reconstruction only from voltage and currents measurements. In the current paper, we present a method based on deterministic evaluation of measurement using the state observer based on Lyapunov function. Stator resistance changes compensation is also discussed. The method has been proven in a simulation using Matlab Simulink and DSP chip and also in testing on real AC induction machine
Keywords
AC induction motor, sensorless control, state observer, Lyapunov function
Authors
Released
5. 9. 2004
Publisher
University of Glasgow
Location
Glasgow
ISBN
80-86059-41-3
Book
Proceedings of the 4th International Conference on Advanced Engineering Design
Pages from
1
Pages to
8
Pages count
BibTex
@inproceedings{BUT11466, author="Pavel {Václavek} and Petr {Blaha}", title="Flux and Speed Observer for AC Induction Motor Sensorless Control with Stator Resistance Changes Compensation", booktitle="Proceedings of the 4th International Conference on Advanced Engineering Design", year="2004", pages="1--8", publisher="University of Glasgow", address="Glasgow", isbn="80-86059-41-3" }