We have proposed a new type superconducting power supply, cylindrical type magnetic flux pump (CTMFP) for high field magnet. This paper describes the structure and operating principle based on pumping equations, and also presents its fundamental characteristics by the finite element method (FEM). Since the proposed CTMFP that consists of three phase armature coils, an LTS Nb foil and a cylindrical permanent magnet can easily produce homopolar traveling fields, a pumping current can be generated in the closed superconducting loop. Due to its simplicity structure, the CTMFP has more efficient operation compared with already developed magnetic flux pumps. From the simulation results, appropriately combined conditions of AC current and intensity of the permanent magnet to realize the homopolar traveling magnetic field were obtained.
Bibliographical noteFunding Information:
Manuscript received October 18, 2009. First published March 01, 2010; current version published May 28, 2010. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government under Grant NRF-2009-353-D00035.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering