Operation of fault tolerant machines with winding failures

Author

Haylock, James A. ; Mecrow, Barrie C. ; Jack, Alan G. ; Atkinson, David J.

Author_Institution

Dept. of Electr. & Electron. Eng., Newcastle upon Tyne Univ., UK

Volume

14

Issue

4

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

1490

Lastpage

1495

Abstract

This paper examines winding faults in a demonstrator drive, based on a specification for an aircraft fuel pump. This drive has been designed with a degree of inherent fault tolerance and is capable of continued operation in the presence of a variety of faults. Some of the most severe faults arise from winding insulation failure within a phase of the machine. A method of detecting turn to turn short circuits which can result from winding insulation breakdown is presented, along with a strategy for continued post fault operation of the drive. The detection method operates in real time, requires no additional sensors and is sufficiently sensitive to detect even a single shorted turn

Keywords

electrical faults; fault diagnosis; fault tolerance; machine insulation; machine windings; motor drives; permanent magnet motors; aircraft fuel pump; continued post-fault operation; fault tolerant machine operation; severe faults; turn-to-turn short-circuits detection; winding insulation failure; Aerospace electronics; Aircraft; Circuit faults; Electric breakdown; Electrical fault detection; Fault detection; Fault tolerance; Fuel pumps; Insulation; Machine windings;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.815095

Filename

815095