| Title |
Conceptual Design and 3-D Electromagnetic Analysis of 1MVA HTS Transformer |
| Authors |
박찬배 ; 김우석 ; 최경달 ; 주형길 ; 홍계원 ; 한송엽 |
| Keywords |
더블 팬케이크 권선 ; 수직자장 HTS Transformer ; HTS Tape |
| Abstract |
This paper presents conceptual design and 3-D electromagnetic analysis of IMVA transformer with BSCCO-2223 High Tc Superconducting (HTS) tapes. The rated voltages of each sides of the transformer are 22.9 kV and 6.6 kV, and double pancake windings were adopted. High voltage and Low voltage sides were composed of several double pancake windings. Four HTS tapes were wound in parallel for the windings of low voltage side and were transposed in order to distribute the currents equally in each conductor The transformer core was designed as a shell type core made of laminated silicon steel plates and the core is separated with the windings by a cryostat with Fiberglass Reinforced Plastics(FRP). A sub-cooling system using LN_2 were designed to maintain the coolant temperature 65K. Finally perpendicular components of magnetic field applied to tapes were calculated 0.247 in the rated operation using 3-D analysis. A real 1MVA HTS transformer will be manufactured in near future based on the design parameters presented in this paper. |