Eur. Phys. J. AP
Volume 3, Number 1, July 1998
|Page(s)||53 - 58|
|Published online||15 July 1998|
Signal based approaches to fault detection in electrical drives
Laboratoire d'Électrotechnique de Grenoble (UMR 5529 INPG.UJF-CNRS),
ENSIEG, BP 46, 38402 Saint-Martin-d'Hères Cedex, France
2 Centre Étude des Phénomènes Aléatoires et Géophysiques, ENSIEG BP 46, 38402 Saint-Martin-d'Hères Cedex, France
Corresponding author: email@example.com
Revised: 15 April 1998
Accepted: 29 April 1998
Published online: 15 July 1998
This paper presents a signal based approach to detect PWM inverter faults and motor unbalances in electrical drives. A diagnostic system which uses the control variables of the drive and the current measurements is presented. It is based on frequency analysis and on the energetic characterization of these variables in the PWM frequency domain. These method very simple to implement in real time have been successfully applied to an experimental system.
PACS: 02.30.Nw – Fourier analysis / 84.50.+d – Electric motors / 84.30.Jc – Power electronics, power supply circuits
© EDP Sciences, 1998
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