Computation of forces and stresses on generator end windings using a 3D finite element method

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1689

Abstract

Electromagnetic forces generate vibrations in the end-winding support structure of large turbine generators. In order to study in detail this phenomenon, a 3D electromagnetic model which computes the forces an the conductor bars, is coupled with a 3D mechanical model which calculates the displacements using the electromagnetic forces as an input. The method is applied to the study of a 600MW generator endminding under rated steady-state conditions.

Keywords

CAD; eddy currents; electric machines; electromagnetic compatibility; electromagnetic devices; electromagnetic fields; electromagnetic wave propagation; electrostatics; finite element analysis; inverse problems; machine theory; magnetic devices; magnetic materials; magnetostatics; mesh generation; numerical analysis; optimisation; computational electromagnetics; coupled problems; electric machine models; electromagnetic compatibility; electromagnetic fields computation; inverse problems; material modelling; mesh generation; numerical techniques; optimisation; quasi-static fields; software methodology; static fields; wave propagation; Application software; Electric machines; Electromagnetic compatibility; Electromagnetic coupling; Electromagnetic fields; Electromagnetic modeling; Electromagnetic propagation; Inverse problems; Mesh generation; Optimization methods;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497581

Filename

497581