Finite element approach to iron and stray loss-at-source computation in salient pole alternators

Author

Tindall, C.E. ; Brankin, S.

Author_Institution

Dept. of Electr. & Electron. Eng., Queen´´s Univ. of Belfast, UK

Volume

24

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

487

Lastpage

490

Abstract

A method for calculating iron losses in the stator and rotor cores of a salient pole alternator is described. Finite-element techniques are used for the computation of the electromagnetic field. The time variation of the flux density in each mesh element is obtained by time stepping. Fourier analysis is used to deduce the appropriate harmonic content. The composite loss per unit axial length associated with each element can then be utilized either as a loss-at-source component for accurate thermal modeling or, by single summation, for calculation of total iron loss

Keywords

Fourier analysis; alternators; electromagnetic fields; finite element analysis; magnetic cores; magnetic leakage; rotors; stators; FEA; Fourier analysis; electromagnetic field; flux density; iron losses; loss-at-source computation; mesh element; rotor cores; salient pole alternators; stator core; thermal modeling; time stepping; Alternators; Cooling; Electromagnetic analysis; Electromagnetic fields; Finite element methods; Iron; Nonlinear equations; Poisson equations; Rotors; Stator cores; Temperature dependence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.43963

Filename

43963