基于大型超导测试平台的移能电阻系统设计

王琨; 宋执权; 仝玮; 汪舒生; 张秀青; HassanMahmood U L

doi:10.11884/HPLPB201931.180271

基于大型超导测试平台的移能电阻系统设计

doi: 10.11884/HPLPB201931.180271

王琨^{1, 2,},
宋执权^1, ,,
仝玮^{1, 2},
汪舒生^{1, 2},
张秀青¹,
HassanMahmood U L¹

1.
中国科学院合肥物质科学研究院等离子体物理研究所, 合肥 230031
2.
中国科学技术大学科学岛分院, 合肥 230026

详细信息

作者简介:
王琨(1989－), 男，博士研究生，从事聚变电源失超保护系统研究；wangk@ipp.ac.cn

通讯作者:
宋执权(1975－), 男，研究员，从事大功率电源系统及开关技术研究；zhquansong@ipp.ac.cn

中图分类号: TL623
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出版历程
- 收稿日期: 2018-10-18
- 修回日期: 2019-01-14
- 刊出日期: 2019-03-15

Fast discharge resistor system design of large superconducting fusion device

Wang Kun^{1, 2
,},
Song Zhiquan^{1
, ,},
Tong Wei^{1, 2},
Wang Shusheng^{1, 2},
Zhang Xiuqin¹,
Hassan Mahmood U L¹

1.
Institute of Plasma Physics, Hefei Institute of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
2.
Science Island Branch, University of Science and Technology of China, Hefei 230026, China

摘要

摘要: 大型超导测试平台用于测试大型超导磁性负载的性能。测试过程中，当超导磁性负载失去超导性能时，大量能量积聚于负载内部从而造成难以恢复的损害，因此需要立刻通过失超保护系统将存储于超导磁性负载内部的能量转移出并进行有效的释放。在失超保护系统中移能电阻系统用于所转移能量的承载，并通过热量排散的形式进行能量释放。针对大型超导测试平台中待测试超导磁性负载参数，设计的移能电阻系统可以根据待释放能量总量、能量转移时间以及系统电气参数等需求，通过改变电阻系统内部的连接结构从而调节移能电阻系统的能量转移过程。通过对移能电阻系统的矩阵模块化设计以及单移能电阻模块结构设计进行分析，针对每个移能电阻模块的抗电磁应力、杂散电感、结构支撑等设计进行有限元仿真分析，从而验证移能电阻系统设计的可行性。
- 大型超导测试平台 /
- 超导磁性负载 /
- 移能电阻系统 /
- 矩阵模块化设计
Abstract: Large superconducting fusion device is used for testing the property of large superconducting magnetic load. When the quench happens in the operating phase, huge energy will be stored inside superconducting load. Therefore, energy inside must be transferred and released immediately by quench protection system. In the quench protection system, the fast discharge resistor system works for the energy absorbing and releasing by heat-dissipating. Due to the transferring energy, duration, power parameters of testing load, the designed system could adjust operating phase by changing structure connections. In addition, the analysis of system design and modular structure design are discussed and the anti-electromagnetic force, structure support simulation are demonstrated by FEA software, thus the feasibility of fast discharge resistor system can be verified.
- large superconducting fusion device /
- superconducting magnetic load /
- fast discharge resistor system /
- matrix modular design

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图 1 失超保护系统电路结构与电流转移图

Figure 1. Circuit and current transferring diagrams of quench protection system

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图 2 失超保护系统逻辑结构图

Figure 2. Logic diagrams of fast discharge resistor system

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图 3 移能电阻模块结构示意图

Figure 3. Diagram of fast discharge resistor modular structure

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图 4 无绝缘条情况下的电阻形变图

Figure 4. Resistor modular deformation without insulation bars

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图 5 有绝缘支撑情况下的电阻形变图

Figure 5. Resistor modular deformation with insulation bars

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图 6 电阻热形变图

Figure 6. Resistor modular deformation with heat

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图 7 不同形状焊接下的寄生电感

Figure 7. Resistor modular inductance with different edge

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图 8 不同数量下的支撑棒形变

Figure 8. Supporting deformation of poles of different groups

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图 9 测试波形及温升图

Figure 9. Testing current waveform and temperature rise

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表 1 不同装置的失超保护系统的技术要求

Table 1. Power requirement of quench protection system in different devices

item	rated voltage/kV	rated current/kA	energy/GJ
EAST	2	15.0	0.4
ITER	10	70.0	41.0
KSTAR	8	40.0	0.5
JT60-SA	5	25.7	1.0
large superconductivity fusion device	20	100.0	10.0

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表 2 移能电阻模块不同材料的参数

Table 2. Material parameters of fast discharge resistor module

material	resistivity /(Ω·mm²·m^-1)	temperature coefficient of resistance / (10^-6· ℃^-1)	specific heat /(J·kg^-1· ℃^-1)	melting point /℃	temperature rise/K	weight /kg
cast-iron	0.85	1000	470	1200	200	10 638
aluminum	0.029	4000	920	660	200	5 434
FeCrAl	1.26	150	491	1500	200	10 183
SUS304	0.675	850	500	1454	200	10 000

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参考文献(12)

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