Signal based approaches to fault detection in electrical drives

Issue		Eur. Phys. J. Appl. Phys. Volume 3, Number 1, July 1998


Page(s)		53 - 58
DOI		10.1051/epjap:1998204

DOI: 10.1051/epjap:1998204

Eur. Phys. J. AP 3, 53-58

Signal based approaches to fault detection in electrical drives

R. Peuget¹ - J.P. Rognon¹ - N. Martin²

¹ Laboratoire d'Électrotechnique de Grenoble, 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

Received: 22 January 1998 / Revised: 15 April 1998 / Accepted: 29 April 1998

Abstract
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

Author for correspondance: raphael.peuget@leg.ensieg.inpg.fr

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