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

Tue-Af-Po2.14-05 [5]: Electromagnetic and thermal analysis of No-Insulation ReBCO Double Pancake Coils During Charging

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

Level 2 Posters 1

Speaker

Dr Qiuliang Wang (Institute of Electrical Engineering, Chinese Academy of Sciences)

Description

This article analyzes the charging behavior of no-insulation high temperature superconducting (HTS) ReBCO double-cake coils under conduction cooling and liquid nitrogen cooling in detail. A partial equivalent circuit model of a determined parameter ReBCO coil is applied to evaluate charging behavior under different cooling conditions. At the same time, the finite element method is used to couple the circuit model with the magnetic field model and the heat transfer model to analyze the changes of the current distribution, magnetic field and temperature of the coil during the charging process. The simulation results obtained by numerical calculation using the coupled model are in good agreement with the results of coil charging experiments under conduction cooling conditions, which also verifies the correctness of the proposed coupled model. In addition, numerical simulation and experiment of different charging rates were carried out under conduction cooling conditions to analyze the excitation characteristics of no-insulation high temperature superconducting magnets in detail.

Primary authors

Mr Kangshuai Wang (Institute of Electrical Engineering, Chinese Academy of Sciences) Mr Lang Qin (Institute of Electrical Engineering, Chinese Academy of Sciences) Mr Yinming Dai (Institute of Electrical Engineering, Chinese Academy of Sciences) Dr Chaoqun Niu (Institute of Electrical Engineering, Chinese Academy of Sciences) Dr Hongyi Qu (Institute of Electrical Engineering, Chinese Academy of Sciences) Dr Qiuliang Wang (Institute of Electrical Engineering, Chinese Academy of Sciences)

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