Eur. Phys. J. Appl. Phys. (2014) 66: 10601
https://doi.org/10.1051/epjap/2014130479

3D analysis of applied field effect on trapped magnetic field during pulsed field magnetization of bulk superconductor

¹ Laboratoire de Modélisation des Systèmes Energétiques LMSE, Université de Biskra, BP 145, 07000 Biskra, Algeria
² Laboratoire de Génie Electrique de Paris – LGEP, CNRS UMR 8507, Supélec, Université Pierre et Marie Curie-Paris 6; Université Paris Sud-Paris 11, Plateau de Moulon, 11 rue Joliot Curie, 91192 Gif-sur-Yvette, Cedex, France
³ Institut de Recherche en Electrotechnique et Electronique de Nantes Atlantique IREENA, CRTT, Boulevard de l’Université, BP 406, 44602 Saint-Nazaire Cedex, France

^a e-mail: lotfi.alloui@lgep.supelec.fr

Received: 21 October 2013
Revised: 7 March 2014
Accepted: 11 March 2014
Published online: 21 April 2014

Abstract

External applied field effect in magnetization process by pulsed field (PFM) method of rectangular bulk superconductor is analysed by solving the A-V magnetic equation coupled to the thermal one in order to show the influence of the amplitude of the external field on the trapped magnetic field of bulk superconductor. A numerical model based on the control volume method (CVM) has been developed, which uses a power-law model with temperature dependency and magnetic field dependence on critical current density. For low cooling temperature T_co = 20 K, a good distribution of the trapped magnetic field of the bulk superconductor is obtained when we applied high external field.