Study on electromagnetic field in the end region of large generator by FEM

Author

Shufang, Li ; Ruoping, Yao ; Yougang, Gao

Author_Institution

Inst. of EMC, Beijing Univ. of Posts & Telecommun., China

fYear

1999

fDate

1999

Firstpage

456

Lastpage

459

Abstract

The attractive model of analyzing a hydraulic generator´s end region field is proposed. The stator core´s end packets are included, the anisotropic and nonlinear stator core are considered. A new method to treat the boundary conditions is presented. Compared with the existing models, the model can calculate the field in the end packets of the stator core more accurately. The calculated results check closely with those obtained from measurement. The result has been applied to analyze the influence of structure and some recommendations in order to avoid local over-heating are proposed

Keywords

electromagnetic fields; finite element analysis; hydroelectric generators; machine theory; stators; FEM; anisotropic stator core; boundary conditions; electromagnetic field; end region; hydraulic generator; local over-heating avoidance; magnetic field calculation; nonlinear stator core; stator core end packets; Anisotropic magnetoresistance; Conductivity; Eddy currents; Electromagnetic fields; Lamination; Magnetic analysis; Magnetic field measurement; Permeability; Stator cores; Teeth;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1999 International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-9980748-4-9

Type

conf

DOI

10.1109/ELMAGC.1999.801363

Filename

801363