The design of quench protection of EAST toroidal field power supply system
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- 作者：Liuwei Xu ; Xiaoning Liu ; Jiafu Jiang ; Yanchuan Liao
- 关键词：Quench protection ; Forced commutation ; DC circuit breaker ; Dump resistor
- 刊名：Fusion Engineering and Design
- 出版年：2006
- 出版时间：November 2006
- 年：2006
- 卷：81
- 期：20-22
- 页码：2549-2554
- 全文大小：541 K
文摘
Experiment Advanced Superconducting Tokamak (EAST) has a high stored energy superconducting toroidal field (TF) magnet system, so a quench protection is required to discharge the TF coils stored energy. This paper proposes a quench protection scheme of the EAST toroidal superconducting magnet through the forced commutation analysis of DC circuit breaker (DCCB) paralleling fuse, in the meantime, two pyrobreakers (PB) are used as a backup to enhance reliability. Based on the requirements of quench protection of EAST toroidal field magnet, the main parameters are selected. Experimental results demonstrate the validity of the proposed case.