HEAT LOAD CHARACTERISTICS AND NEW DESIGN USING ONE-COIL MODEL SUPERCONDUCTING MAGNETS

Superconducting magnets (SCM) for Maglev trains are vibrated by the el ectromagnetic force arising from the magnetic field of higher harmonic s, which is due to the arrangement of the ground coils. The heat load within the liquid helium temperature region increases by the vibration of the magnets. This paper reports a heat load generation estimation mechanism due to the above-mentioned vibration, as well as effective m easures of reducing heat load generation. in addition, we show how a o ne-coil type SCM can reduce the heat load generation in electromagneti c disturbance tests. (C) 1997 Elsevier Science Ltd.