DocumentCode :
37142
Title :
Circuit Network Model of Stator Transposition Bar in Large Generators and Calculation of Circulating Current
Author :
Xu Bian ; Yanping Liang
Author_Institution :
Harbin Univ. of Sci. & Technol., Harbin, China
Volume :
62
Issue :
3
fYear :
2015
fDate :
Mar-15
Firstpage :
1392
Lastpage :
1399
Abstract :
Calculation of circulating current in transposition bars is important to the transposition-type design of stator windings in large generators. The circuit network model of the stator transposition bar, including only resistance and reactance parameters, is proposed in this paper, and the calculation method for parameters is given. The analytical algorithm of circulating current in stator transposition bars is proposed based on the circuit network model. Contrary to the existing calculation method for circulating current, the presented analytical algorithm is a general and fast method for different transposition types, which can avoid establishing complex 3-D models. In order to validate the proposed analytical algorithm, the strand current and circulating current of less than 540° with a void transposition bar in a water-cooled turbogenerator are calculated by analytical algorithm and 3-D finite-element method.
Keywords :
finite element analysis; stators; turbogenerators; 3D finite-element method; FEM; analytical algorithm; circuit network model; circulating current calculation; fast method; general method; reactance parameters; resistance parameters; stator transposition bar; stator windings; strand current; transposition-type design; void transposition bar; water-cooled turbogenerator; Bars; Force; Generators; Integrated circuit modeling; Mathematical model; Resistance; Stator windings; Analytical algorithm; circuit network model; circulating current; large generator; transposition bars;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2014.2347264
Filename :
6880799
Link To Document :
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