3D Modeling of Coils for Pulsed Field Magnetization of HTS Bulk Pellets in an Electrical Machine

Abstract : In this work, we propose to study and design a coil used to magnetize, by means of a Pulsed Field Magnetization (PFM) process, an inductor of a radial flux superconducting machine with one pair of poles. Each pole contains four similar HTS bulks of 30 mm diameter arranged in a square pattern. The cryostat already exists for this application and the temperature of the HTS bulks can vary from 4.2 K to their critical temperature, in transient state. For a given primary source of energy, here a capacitor bank of 10 kJ (5 mF, 2 kV) is available, the PFM process depends strongly on the value of the coil inductance used to generate pulsed field, because it defines the waveform of the current: peak value and time constant. Thus, 3D modeling of the coil is required in order to be sure that its inductance and the magnetic field produced will provide a full magnetization of HTS bulks. From the practical point of view, we would like to achieve an average magnetization of each pole around 3 T. In this paper, numerical modeling of coils with different number of turns coupled with circuit's equations is achieved. The maximum magnetic field obtained on the HTS bulks and estimated magnetization at the top center of each HTS bulk, are presented and discussed.
Complete list of metadatas

Cited literature [22 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01590665
Contributor : Kévin Berger <>
Submitted on : Thursday, February 8, 2018 - 9:12:36 AM
Last modification on : Saturday, November 9, 2019 - 8:50:11 AM

File

Article_3D_modeling_of_coils_f...
Files produced by the author(s)

Identifiers

Collections

Citation

Kévin Berger, Jakub Kapek, Alexandre Colle, Mariusz Stepien, Boguslaw Grzesik, et al.. 3D Modeling of Coils for Pulsed Field Magnetization of HTS Bulk Pellets in an Electrical Machine. IEEE Transactions on Applied Superconductivity, Institute of Electrical and Electronics Engineers, 2018, 28 (4), pp.6801205. ⟨10.1109/TASC.2018.2804906⟩. ⟨hal-01590665v2⟩

Share

Metrics

Record views

227

Files downloads

632