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。

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.