The influence of transposition angle on three-dimensional global domain magnetic field of stator bar in water-cooled turbo-generator

Author

Liang, Y. ; Wu, L. ; Bian, X. ; Yu, H.

Author_Institution

Coll. of Electr. & Electron. Eng., Univ. of Sci. & Technol., Harbin, China

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

In this paper, a 600 MW turbo-generator is used as an example. Three-dimensional (3-D) physical model of transposition bars in a single stator slot is established. Field-circuit coupling method is combined in 3-D numerical calculation. The influence of transposition angle on three-dimensional global domain magnetic field of stator bar in water-cooled turbo-generator is researched. The distribution changes of flux density, maximum current and circulating current loss in the corresponding transposition structure are obtained. New solution and theoretical basis will be provided for the structure optimization design of the stator bar.

Keywords

numerical analysis; stators; turbogenerators; 3D global domain magnetic field; 3D numerical calculation; 3D physical model; circulating current loss; field-circuit coupling method; flux density distribution changes; maximum current; power 600 MW; single stator slot; stator bar; structure optimization design; transposition angle; transposition bars; water-cooled turbogenerator; Bars; Magnetic fields; Numerical models; Shape; Solid modeling; Stator bars;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7157306

Filename

7157306