Quench simulation and thermal diffusion in epoxy-impregnated magnet system

Author

Eyssa, Y.M. ; Markiewicz, W.D.

Author_Institution

Nat. High Magnetic Field Lab., Florida State Univ., Tallahassee, FL, USA

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

487

Lastpage

490

Abstract

We have developed a new computer code that addresses quench simulation and analysis of a magnetically coupled epoxy-impregnated superconducting magnet system. The new computer code contains several new provisions: (1) it includes the effect of AC loss from the field variations in the winding due to field change because of the fast current transfer between the magnetically coupled solenoids; and (2) simultaneous solution of the propagation velocities in all directions in each coil by solving the thermal diffusion equation in the three directions (tangential, radial and axial). In addition to the above new features, the code solves for the currents, voltage, temperature distribution, and resistance of each coil as function of time. Thermal simulation of the protection switch and the quenching heaters is part of the new code.<>

Keywords

digital simulation; electrical engineering computing; losses; polymers; simulation; solenoids; superconducting magnets; thermal diffusion; AC loss; coil resistance; computer code; epoxy-impregnated magnet system; fast current transfer; field variations; magnetically coupled solenoids; propagation velocities; protection switch; quench simulation; quenching heaters; superconducting magnet system; temperature distribution; thermal diffusion; thermal simulation; winding; Analytical models; Coils; Computational modeling; Computer simulation; Couplings; Magnetic analysis; Propagation losses; Superconducting magnets; Switches; Thermal quenching;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402572

Filename

402572