Electromagnetic forces in synchronous turbogenerator rotor slot wedges

Author

Pantelyat, M.G. ; Biro, O. ; Stermecki, Andrej

Author_Institution

Inst. for Fundamentals & Theor. in Electr. Eng., Graz Univ. of Technol. (IGTE TU Graz), Graz, Austria

fYear

2011

fDate

25-27 July 2011

Firstpage

1

Lastpage

4

Abstract

The 3D finite element technique has been used to calculate transient electromagnetic fields and forces due to negative sequence currents in large synchronous turbogenerator rotors. The paper is devoted to the finite element analysis of electromagnetic forces in the joints of nonmagnetic slot wedges along the rotor length. Force distributions in the time and frequency domains are obtained. The results will be used for the computer simulation of the mechanical vibrations of the rotor.

Keywords

electromagnetic forces; finite element analysis; rotors; shapes (structures); synchronous generators; turbogenerators; vibrations; 3D finite element technique; computer simulation; electromagnetic forces; force distribution; frequency domain analysis; mechanical vibrations; negative sequence currents; nonmagnetic slot wedges; synchronous turbogenerator rotor slot wedges; time domain analysis; transient electromagnetic fields; Electromagnetic fields; Electromagnetic forces; Finite element methods; Force; Rotors; Transient analysis; Turbogenerators; forces; slot wedges; transient electromagnetic field; turbogenerator rotor;

fLanguage

English

Publisher

ieee

Conference_Titel

Nonlinear Dynamics and Synchronization (INDS) & 16th Int'l Symposium on Theoretical Electrical Engineering (ISTET), 2011 Joint 3rd Int'l Workshop on

Conference_Location

Klagenfurt

Print_ISBN

978-1-4577-0759-9

Type

conf

DOI

10.1109/INDS.2011.6024794

Filename

6024794