This paper deals with the design and fabrication of a heater-trigger type high-Tc superconducting (HTSC) power supply, and its characteristics has been analyzed through experiments. A heater-trigger HTSC power supply consists of two heaters, an electromagnet, and a YBCO superconducting bulk. In this experiment, a 0.6-T magnet and a 2.3-A dc heater current were used and 190 s and 380 s were used for the pumping period. In order to measure the pumping current with respect to the magnet flux changes, hall sensors were installed at the surface of the YBCO bulk and inside of an iron core. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping current has reached about 12 A. In computer simulation, the maximum pumping current of the system has been predicted to be about 13 A.
Bibliographical noteFunding Information:
Manuscript received June 24, 1999. This work was supported in part by the Electrical Engineering and Science Research Institute (EESRI) and in part by the Agency for Technology and Standards (ATS), the Ministry of Commerce, Industry, and Energy of Korea (MOCIE). Y.-S. Yoon is with the Department of Electrical Engineering, Ansan College of Technology, Ansan 425-792, Korea. S.-J. Lee is with the Department of Electrical Engineering, Uiduk University, Kyongju, 780-713, Korea. H.-M. Kim and T. K. Ko are with the Department of Electrical and Computer Engineering, Yonsei University, Seoul 120-749, Korea. Publisher Item Identifier S 1051-8223(99)10404-4.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering