The slot impedance: experimental verification

Author

Hoole, S. Ratnajeevan H ; Walsh, Thomas H. ; Stevens, George H.

Author_Institution

Dept. of Eng., Harvey Mudd Coll., Claremont, CA, USA

Volume

24

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

3156

Lastpage

3158

Abstract

Computational cost is high in eddy-current finite-element solutions because the magnetic vector potential A varies exponentially, resulting in fine meshes. The surface-impedance boundary condition can be used to eliminate eddy-current parts without external current sources. In slots, however, the variation of A is very rapid even in the air, and modeling these parts in electric machinery is very costly. The authors introduce the slot impedance, which is very similar to the surface impedance, and show how to remove the slots using the slot impedance as a boundary condition. Laboratory verification of the model is described

Keywords

boundary-value problems; eddy currents; electric impedance; finite element analysis; machine theory; boundary condition; eddy-current finite-element solutions; electric machinery; fine meshes; magnetic vector potential; slot impedance; surface-impedance boundary condition; Boundary conditions; Coils; Computational efficiency; Eddy currents; Educational institutions; Finite element methods; Integrated circuit modeling; Machinery; Power transmission lines; Surface impedance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92366

Filename

92366