Constrained indirect BEM for eddy current calculations in multiple conductor TM induction problems

Author

Ahmed, M. Taher ; Lavers, J.D. ; Burke, P.E.

Author_Institution

Dept. of Electr. Machines & Power Eng., Helwan Univ., Cairo, Egypt

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3946

Lastpage

3948

Abstract

A constrained boundary-element formulation is presented for the calculation of the eddy current losses in a multiconductor TM (transverse magnetic) induction problem. It is shown that a constraint that sets the total source current inside each conductor to zero must be used. Such a constraint guarantees the validity of the radiation condition at infinity as well as a uniquely defined problem. Two examples are given to illustrate the validity of and need for the constraint. The effect of conductor arrangement on the field distribution is discussed in detail

Keywords

boundary-elements methods; conductors (electric); eddy current losses; electromagnetic induction; TM induction problems; boundary-element formulation; conductor arrangement; constrained indirect BEM; eddy current calculations; field distribution; losses; multiple conductor; transverse magnetic; Boundary conditions; Boundary element methods; Conductors; Differential equations; Eddy currents; Electric machines; H infinity control; Laplace equations; Power engineering; Power engineering and energy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42486

Filename

42486