Detail publikace

Hybrid Speed Estimation Scheme for AC Induction Machine Sensorless Control

VÁCLAVEK, P. BLAHA, P.

Originální název

Hybrid Speed Estimation Scheme for AC Induction Machine Sensorless Control

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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. It is also shown, that the main problem of speed estimation accuracy is closely tied to the knowledge of actual rotor resistance value. A simple method of rotor resistance estimation based on rotor slot harmonics analysis is proposed. Algorithm has been proved in testing on a small 250W AC induction machine.

Klíčová slova

induction machine, speed estimation, rotor resistance

Autoři

VÁCLAVEK, P.; BLAHA, P.

Rok RIV

2005

Vydáno

28. 8. 2005

Nakladatel

IEEE

Místo

Toronto

ISBN

0-7803-9353-8

Kniha

Proceedings of the 2005 IEEE Conference on Control Applications

Strany od

1455

Strany do

1460

Strany počet

6

BibTex

@inproceedings{BUT15018,
  author="Pavel {Václavek} and Petr {Blaha}",
  title="Hybrid Speed Estimation Scheme for AC Induction Machine Sensorless Control",
  booktitle="Proceedings of the 2005 IEEE Conference on Control Applications",
  year="2005",
  pages="1455--1460",
  publisher="IEEE",
  address="Toronto",
  isbn="0-7803-9353-8"
}