Title :
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
fDate :
12/1/1999 12:00:00 AM
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;
Journal_Title :
Energy Conversion, IEEE Transactions on
