Publication detail

Speed Observer for AC Induction Machine Sensorless Contol with the Winding Resistance Changes Compensation

VÁCLAVEK, P. BLAHA, P.

Original Title

Speed Observer for AC Induction Machine Sensorless Contol with the Winding Resistance Changes Compensation

Type

journal article - other

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 designed using Lyapunov stability analysis. Winding 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 machine, sensorless control, resistance changes, Lyapunov function

Authors

VÁCLAVEK, P.; BLAHA, P.

RIV year

2005

Released

20. 11. 2005

ISBN

1726-9687

Periodical

DAAAM International Scientific Book

Year of study

2005

Number

11

State

Republic of Austria

Pages from

645

Pages to

656

Pages count

12

BibTex

@article{BUT45793,
  author="Pavel {Václavek} and Petr {Blaha}",
  title="Speed Observer for AC Induction Machine Sensorless Contol with the Winding Resistance Changes Compensation",
  journal="DAAAM International Scientific Book",
  year="2005",
  volume="2005",
  number="11",
  pages="645--656",
  issn="1726-9687"
}