Coupled Electromagnetic-Mechanical Dynamic Analysis of Generator Circuit Breakers

Author

Smajic, Jasmin ; Jager, Claus ; Neubauer, Sandra ; Bauer, A. ; Cheng, Daniel Jun ; Widenhorn, M.

Author_Institution

Univ. of Appl. Sci. of Eastern Switzerland, Rapperswil, Switzerland

Volume

50

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

237

Lastpage

240

Abstract

Due to their specific position and role in electric power systems, generator circuit breakers (GCBs) must be so developed and manufactured that they can withstand extremely high short circuit currents several times over their entire lifetime. Therefore, an accurate and efficient method for performing a coupled electromagnetic-mechanical simulation of a GCB in its full geometrical complexity is of paramount importance for daily design. This paper presents in detail a novel method for coupling of electromagnetic and dynamic mechanical analysis for GCBs. The suggested method is fast, accurate, efficient, robust, and suitable for 3-D geometries of high complexity.

Keywords

circuit breakers; electric generators; machine protection; short-circuit currents; 3D geometry; GCBs; coupled electromagnetic-mechanical dynamic analysis; electric power systems; full geometrical complexity; generator circuit breakers; high short circuit currents; Conductors; Couplings; Damping; Geometry; Integrated circuit modeling; Short-circuit currents; Stress; Circuit breakers; electromagnetic modeling; magneto-mechanical effects; numerical simulation; short circuit currents;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2284286

Filename

6749073