Title :
Induced voltage and alternating current loss in superconducting magnet system for SSTF
Author :
Wang, Q.L. ; Baang, S. ; Yoon, C.S. ; Kim, S.B. ; Park, H.K. ; Kim, M.K. ; Kim, Y.J. ; Lee, S.I. ; Kim, K.
Author_Institution :
Samsung Adv. Inst. of Technol., Taejon, South Korea
fDate :
3/1/2001 12:00:00 AM
Abstract :
The induced voltage in the Samsung Superconducting Test Facility (SSTF) is analyzed according to the calculation of self-inductance and mutual inductance. The voltage induced by blip and compensating coils in the main coils is about 6.4 V. In order to charge the main coils, the power supply must provide the minimum voltage of 1.1 kV. The compensating coils have an influence on the field distribution. The compensating coils result in the decreasing center field about 2.67%. AC losses that include the coupling, hysteresis and eddy losses are calculated in the main, blip and compensating coils. It leads to the temperature rise of about 8 K in main coils
Keywords :
compensation; eddy current losses; inductance; superconducting cables; superconducting coils; superconducting device testing; superconducting magnets; test facilities; 1.1 kV; 6.4 V; KSTAR superconducting magnets; Samsung Superconducting Test Facility; alternating current loss; cable-in-conduit conductor; compensating coils; eddy losses; hysteresis losses; induced voltage; main coils charging; mutual inductance; power supply; self-inductance; superconducting magnet system; temperature rise; Inductance; Magnetic flux; Magnetic losses; Solenoids; Superconducting cables; Superconducting coils; Superconducting magnets; Test facilities; Toroidal magnetic fields; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
