JIITA, vol.3 no.2, pp.267-271, 2019
Practical deisgn of a 3 T superconducting magnet for a 300 kW-class DC induction heating using various types of MgB2 wires
Van Quan Dao 1), Changsoon Kim 1), Minwon Park 1,*), Chankyeong Lee 2), Jongho Choi 2)
1) Department of Electrical Engineering, Changwon National University, Changwon, Rep. of Korea
2) Supercoil Co., Ltd, Changwon, Rep. of Korea
Abstract: This paper presented a practical design of a 3 T superconducting magnet using MgB2 sandwich-type and round wires for a 300 kW class DC induction heater. First, the specifications of two types of the MgB2 wires were investigated. Then, the magnet was designed so that the maximum magnetic flux density of the magnet was 3 T. A racetrack-shaped double pancake coil (DPC) was applied to all the magnets, and two DPCs with two iron cores were placed on both sides of the billet. The magnetic field distributions were analyzed using a 3D finite element method program. Finally, magnet designs were compared in terms of size, magnetic flux density, operating current, operating temperature, winding method, required length and cost of the wires. This study will be effectively applied to the development of a commercial 300 kW class superconducting DC induction heater.
Keyword: electromagnetic analysis; DC induction heater; MgB2 wire; superconducting magnet