Title :
Current Pumping Performance of Linear-Type Magnetic Flux Pump With Use of Feedback Control Circuit System
Author :
Chung, Yoondo ; Hoshino, Tsutomu ; Nakamura, Taketsune
Author_Institution :
Dept. of Electr. Eng., Kyoto Univ.
fDate :
6/1/2006 12:00:00 AM
Abstract :
It has already been investigated that current pumping of the linear-type magnetic flux pump (LTMFP) is controlled by frequency of 3-phase inverter. In this paper, based on these operating characteristics, a current compensator, which is composed of a LTMFP and a feedback control circuit system, has been introduced to compensate for the persistent current decay of the superconducting magnet. From the experiment, the current compensator has been demonstrated with the toroidal assembly of six Nb-Ti magnets 543 mH under the operating load current at 10 A
Keywords :
circuit feedback; high-temperature superconductors; magnetic flux; niobium alloys; persistent currents; superconducting magnets; titanium alloys; 10 A; 3-phase inverter; NbTi; current compensator; current pumping; feedback control circuit system; linear-type magnetic flux pump; load current; persistent current decay; superconducting magnet; Control systems; Feedback circuits; Feedback control; High temperature superconductors; Inverters; Magnetic circuits; Magnetic flux; Persistent currents; Personal communication networks; Superconducting magnets; Current compensator; feedback control circuit system; linear-type magnetic flux pump;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.870452
