22-27 September 2019
Hyatt Regency Hotel Vancouver
Canada/Pacific timezone

Tue-Af-Po2.16-06 [20]: Charging Characteristics of HTS Coils with Various Insulation Materials by Charging of Rotary HTS Flux Pump

24 Sep 2019, 14:00
2h
Level 2 Posters 1

Level 2 Posters 1

Speaker

Mr Seunghak Han (Yonsei University)

Description

High-temperature superconducting (HTS) coils wound without turn-to-turn insulation (NI coils) show excellent electrical and thermal performance compared to HTS coils wound with insulation material (INS coils). However, charging the NI coils using a direct current (DC) power supply have a slower charging time than the INS coils. To overcome this slow charging time, research is underway to charge the NI coils using a flux pump, a DC voltage source, instead of a DC power supply. In this paper, we conducted experiments to compare the charging and discharging characteristics of an NI and INS coils charging by a rotary HTS flux pump. A superconducting circuit consisting of the two coils with the same magnitude of inductance is connected in series. As a result of the experiments, we compare the charging and discharging characteristics when a DC voltage source of the same value is applied to the two coils with a rotary HTS flux pump which is a contactless excitation rotary device.

Primary author

Mr Seunghak Han (Yonsei University)

Co-authors

Mr Haeryong Jeon (Yonsei University) Prof. Ho Min Kim (Jeju National University) Mr Ji Hyung Kim (Jeju National University) Mr Jae Hyung Moon (Jeju National University) Prof. Tae Kuk Ko (Yonsei University) Prof. Yong Soo Yoon (Shin Ansan Univiersity)

Presentation Materials