Lots of high-temperature superconducting (HTS) devices which require current leads, slip rings or brushes have to face the challenges such as large heat load and complex structure. Recently, an HTS energy converter has been proposed, which can not only induce but also exploit persistent current in a closed HTS ring, realizing the conversion of mechanical energy—electromagnetic energy—mechanical energy wirelessly. In this work, a dynamic modelling method based on the H-formulation and moving mesh has been proposed to accurately simulate the electromagnetic performance of the HTS energy converter. The proposed modelling method can depict the induced current density inside the superconductor and magnetic field distribution, serving as a powerful tool to analyze the complex working principle of the HTS energy converter. The validity of the model has been verified by experimental results. Besides, effects of different parameters of the energy converter have been investigated in detail by our proposed model, to provide further insight into the design and applications of the device.

许多需要电流引线、滑环或电刷的高温超导（HTS）器件不得不面临热负荷大、结构复杂等挑战。最近，人们提出了一种HTS能量转换器，它不仅可以在闭合的HTS环中感应而且可以利用持续电流，实现了机械能-电磁能-机械能的无线转换。在这项工作中，提出了一种基于 H 公式和移动网格的动态建模方法，以准确模拟 HTS 换能器的电磁性能。所提出的建模方法可以描述超导体内部的感应电流密度和磁场分布，是分析高温超导换能器复杂工作原理的有力工具。实验结果验证了模型的有效性。此外，我们提出的模型详细研究了能量转换器不同参数的影响，以进一步了解设备的设计和应用。