15–19 Nov 2021
Fukuoka Convention Center
Asia/Tokyo timezone

Design of a full Superconducting 35 T Magnet with a 20 T REBCO Insert

THU-OR5-301-06
18 Nov 2021, 19:45
15m
Fukuoka Convention Center

Fukuoka Convention Center

Speaker

Liangjun Shao (Tsinghua University)

Description

A 35 T/17 mm cold-bore full superconducting magnet has been designed. It consists of a 15 T LTS background magnet with the inner radius of 150 mm, and a 20 T HTS insert magnet with the inner radius of 17 mm. We hybrid used no-insulated and steel-insulated REBCO tapes to wind the HTS insert, with the aim of protecting part of HTS coils in a relatively safe state. Two mechanical models were built to estimate the stress distribution inside the HTS coils during operation. The influence of the screening current field on stress was discussed. A quench circuit model was built to simulate the influence of mutual inductance between the two HTS coils during quench. The 20 T insert magnet is being fabricated by ASIPP and Tsinghua University and planned to be tested in 2021. No-insulated HTS coils have been completely wound and current-capacity test results at 77 K were presented and discussed.

Primary authors

Liangjun Shao (Tsinghua University) Xintao Zhang (the Institute of Plasma Physics, Chinese Academy of Sciences) Yufan Yan (the State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University) Haoyuan Wang (Department of Mechanical Engineering, Tsinghua University) Timing Qu (the State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University)

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