Title :
Interfacing the general 3D A-ψ method with a thin sheet conductor model
Author :
Rodger, D. ; Leonard, P.J. ; Lai, H.C.
Author_Institution :
Sch. of Electr. Eng., Bath Univ., UK
fDate :
3/1/1992 12:00:00 AM
Abstract :
A finite-element scheme for modeling 3-D eddy currents in general thick conductors and thin sheet conductors which can be in electrical contact is described. Volume eddy currents are modeled in terms of the magnetic scalar potential A and sheet eddy currents are modeled in terms of a scalar stream function T. Nonconducting regions are modeled using magnetic scalar potentials. The interface between the general thick conductors and the thin sheet conductors is described. The method has been implemented in the 2- and 3-D electromagnetics software package MEGA. The method yields good results for all cases tried in which the assumption of uniform distribution across the thickness of the sheet is reasonable. Results are presented for tokamak poloidal field coils
Keywords :
coils; conductors (electric); eddy currents; electrical engineering computing; finite element analysis; software packages; 2D electromagnetics; 3D eddy currents; 3D electromagnetics; MEGA; electrical contact; finite-element scheme; magnetic scalar potential; nonconducting regions; scalar stream function; software package; thick conductors; thin sheet conductor model; tokamak poloidal field coils; uniform distribution; Conducting materials; Conductors; Contacts; Eddy currents; Electromagnetics; Finite element methods; Geometry; Skin; Software packages; Solid modeling;
Journal_Title :
Magnetics, IEEE Transactions on
