Publication

Magnetic and electric simulation of eddy currents in Ag sheathed Bi2223 tapes

Bertrand Dutoit, Svetlomir Stavrev
1998
Conference Papers

Abstract

The use of HTSC tapes as main components in future power applications requires better understanding of their AC loss behaviour. Previous studies have lead to conclusions that eddy current loss is a significant loss factor at high frequency in self-field. In this paper we present a Finite Elements Method electromagnetic simulation of the current density and magnetic field distribution in the tape for 59Hz and 1kHz. The Ac losses due to eddy currents in the silver sheath are calculated for a mono and multicore tape. To carry out the electromagnetic simulation we have characterized the electric and magnetic properties of the superconductor using a simple model of a Bi2223 tape.

Official source

https://infoscience.epfl.ch/entities/publication/cdf63084-e5f0-4a55-8b68-0976efe8cf4f

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Bertrand Dutoit, Svetlomir Stavrev
1998
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cdf63084-e5f0-4a55-8b68-0976efe8cf4f

About this result

Related concepts (32)

Magnetic field

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets.

Eddy current

In electromagnetism, eddy currents (also called Foucault's currents) are loops of electric current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction or by the relative motion of a conductor in a magnetic field. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. They can be induced within nearby stationary conductors by a time-varying magnetic field created by an AC electromagnet or transformer, for example, or by relative motion between a magnet and a nearby conductor.

Computational electromagnetics

Computational electromagnetics (CEM), computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment. It typically involves using computer programs to compute approximate solutions to Maxwell's equations to calculate antenna performance, electromagnetic compatibility, radar cross section and electromagnetic wave propagation when not in free space.

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Magnetic and electric simulation of eddy currents in Ag sheathed Bi2223 tapes

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