Current Pumping Performance of Linear-Type Magnetic Flux Pump With Use of Feedback Control Circuit System

摘要

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.