The Analysis of Losses in High-Power Fault-Tolerant Machines for Aerospace Applications

Author

Atkinson, Glynn J. ; Mecrow, Barrie C. ; Jack, Alan G. ; Atkinson, David J. ; Sangha, Parminder ; Benarous, Maamar

Author_Institution

Sch. of Electr., Electron. & Comput. Eng., Newcastle upon Tyne Univ.

Volume

42

Issue

5

fYear

2006

Firstpage

1162

Lastpage

1170

Abstract

This paper discusses the design of a fault-tolerant electric motor for an aircraft main engine fuel pump. The motor in question is a four-phase fault-tolerant motor with separated windings and a six-pole permanent magnet rotor. Methods of reducing machine losses in both the rotor and stator are introduced and discussed. The methods used to calculate rotor eddy current losses are examined. Full three-dimensional finite-element (FE) time stepping, two-dimensional (2-D) FE time stepping, and 2-D FE harmonic methods are discussed, and the differences between them and the results they produce were investigated. Conclusions are drawn about the accuracy of the results produced and how the methods in question will help the machine designer

Keywords

aerospace engineering; aircraft; eddy current losses; electric motors; engines; fault tolerance; finite element analysis; rotors; stators; 2D FE harmonic methods; aerospace applications; eddy current losses; engine fuel pump; high-power fault-tolerant machines; machine loss reduction; rotor; six-pole permanent magnet motor; stator; three-dimensional time stepping; two-dimensional FE time stepping; Aircraft propulsion; Electric motors; Engines; Fault tolerance; Fuel pumps; Iron; Magnetic analysis; Permanent magnet motors; Rotors; Two dimensional displays; Aerospace industry; electromagnetic performance; fault tolerance; high specific output; losses; modeling; permanent-magnet (PM) machines; simulation;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2006.880869

Filename

1703707