摘要
中国聚变工程实验堆(CFETR)是超导托卡马克装置,其极向场(PF)磁体对控制等离子体位置形状起重要作用。PF系统能否稳定运行主要取决于管内电缆导体(CICC)的稳定性。为确保PF系统稳定运行,应用数值模拟计算程序Gandalf对CFETR PF磁体CICC进行了稳定性分析,给出了机械和电磁扰动下其稳定性裕度、最小失超能量、温度裕度的计算结果以及分流温度随工作电流和磁场强度变化的规律和失超特性。此外,交流损耗为影响导体稳定性的重要因素,对导体交流损耗进行了计算,并研究了其对导体稳定性的影响。分析结果表明CFETR极向场磁体的导体目前的设计能够充分满足安全裕度的要求。
The China Fusion Engineering Testing Reactor （CFETR） is a superconducting Tokamak device. The poloidal field （PF） magnets of the CFETR play an important role in controlling the location and shape of the plasma. The stable operation of the PF system is largely based on the cable-in-conduit conductors （CICC） stability. In order to insure the stable operation of the PF system, the analysis of the CICC for PF system is performed by the Gandalf program. For stability analysis, a mechanical disturbance and an electromagnetic disturbance are applied, respectively. The calculation of stability margin, minimum quench energy and temperature margin are presented in this paper. The dependence of the current sharing temperature on the operating current and the background field are discussed. And the quench characteristics are studied. Moreover, as an important factor which influences the stability of conductor, the AC loss is calculated and its effect on the stability of conductor is studied. The analysis results illustrate that the present design of CFETR PF conductor can sufficiently satisfy the requirement of safety margin.
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第19期224-231,共8页
Transactions of China Electrotechnical Society
基金
国际热核聚变实验堆(ITER)计划专项(国内研究)(2011GB114000)
国家自然科学基金青年科学基金(51507173)资助项目
关键词
管内电缆导体
稳定性
交流损耗
极向场
Cable-in-conduit conductors, stability, AC loss, poloidal field
