High-temperature superconducting (HTS) magnets are promising in the application of high-intensity magnetic field. HTS flux pumps are devices that can charge closed HTS magnets without direct electrical contact. Simulation is an effective way to clarify the physical mechanism and provide further insight into the design of the device. In this work, we propose an accurate and efficient modeling methodology to simulate the transformer-rectifier HTS flux pump, which has considered electromagnetic and thermal coupling. The validity of the model has been verified by experimental results and theoretical calculations. The working characteristics of the HTS flux pump are investigated based on the proposed model, including DC bias component in the charging loop, the voltage recovery delay of the dynamic bridge and the temperature distribution in the dynamic bridge. The simulation results clearly depict working details of the device, in terms of electricity, magnetism and heat. The proposed model can serve as a powerful tool to design the HTS flux pump in practical applications.

中文翻译：

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考虑电磁和热耦合的变压器-整流器磁通泵建模方法


高温超导（HTS）磁体在高强度磁场的应用中具有广阔的前景。 HTS 磁通泵是无需直接电接触即可对闭合 HTS 磁体充电的装置。仿真是阐明物理机制并进一步了解设备设计的有效方法。在这项工作中，我们提出了一种准确有效的建模方法来模拟变压器整流器高温超导磁通泵，该方法考虑了电磁和热耦合。实验结果和理论计算验证了模型的有效性。基于所提出的模型，研究了高温超导磁通泵的工作特性，包括充电回路中的直流偏置分量、动态桥的电压恢复延迟和动态桥的温度分布。仿真结果清楚地描述了设备在电、磁和热方面的工作细节。所提出的模型可以作为实际应用中设计高温超导通量泵的有力工具。