The Influence of the Geometrical Properties of Bulk Superconductors on Limiting Fault Current in an Electrical Network

• Published in: Advanced electromagnetics Vol. 8; no. 4; pp. 136 - 142
• Main Authors: Belkhiri, S., Alloui, L., Ben Mebarek, F.
• Format: Journal Article
• Language: English
• Published: Advanced Electromagnetics 01-01-2019
• Subjects: electromagnetic and thermal phenomena; short circuit; University of Biskra; uperconducting faults current limiter
• ISSN: 2119-0275; 2119-0275
• DOI: 10.7716/aem.v8i4.1207

The behavior of the superconducting fault current limiters SFCL used in Electrical Network is largely determined by the geometry properties and the type of the bulk superconductors used. In this work we present a numerical analysis of the electromagnetic and the thermal behavior of the SFCL and the influence of geometrical properties of the bulk superconductors of rectangular shape used in an electrical network The results are obtained from a three-dimensional computation code, developed and implemented under MATLAB environment where the formulation in magnetic vector potentials A and electrical scalar potential V are adopted to solve the electromagnetic problem and the heat diffusion formulation is also adopted to solve the thermal problem. The coupling is ensured by an alternating algorithm and the numerical resolution of the problem is ensured by the method of the finite volumes in its three-dimensional version in order to avoid certain problems of numerical convergence linked to the strongly nonlinear character of the problem to be solved.