Magnetic field analysis of stator core end region of large turbogenerators

Author

Fujita, Masafumi ; Tokumasu, Tadashi ; Yoda, Hiroyuki ; Tsuda, Hideaki ; Ito, Kaoru ; Nagano, Susumu

Author_Institution

Toshiba Corp., Yokohama, Japan

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1850

Lastpage

1853

Abstract

In order to estimate the losses and temperature rise at the end of electrical machines, it is important to clarify electromagnetic behavior in the core end region. In this paper, the method of evaluating the leakage flux of the stator end region of large turbogenerators, combining three-dimensional magnetic field analysis and phasor diagram analysis of the end leakage flux is described. Moreover, the result of applying this method to a 60 Hz-1000 MW turbogenerator is also described

Keywords

magnetic fields; magnetic flux; magnetic leakage; stators; turbogenerators; 1000 MW; 60 Hz; electrical machines; electromagnetic behavior; end leakage flux; large turbogenerators; leakage flux evaluation; losses estimation; magnetic field analysis; phasor diagram analysis; stator core end region; temperature rise; three-dimensional magnetic field analysis; Flanges; Magnetic analysis; Magnetic cores; Magnetic fields; Magnetic flux; Performance analysis; Saturation magnetization; Stator cores; Temperature; Turbogenerators;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877805

Filename

877805