In this paper, a three-dimensional semi-analytical approach, based on the volume integral method, is developed to compute the forces and torque in fully high temperature superconducting (HTS) ironless axial flux machine (IAFM). The use of particular volumetric basis elements helps to speed up the computation of the magnetic field. The Maxwell stress tensor method is used for the force and torque calculations, where the electromagnetic state of the superconductor is taken into account. The developed model is then introduced into a multi objective optimization procedure, based on the genetic algorithms, to maximize the magnetic torque and minimize the superconducting wire length in the considered structure, while respecting the constraints linked to the physical and mechanical properties of the considered HTS tape. It is shown that the considered fully HTS machine has a higher torque density compared to conventional one.

本文基于体积积分法，开发了一种三维半解析方法来计算全高温超导（HTS）无铁轴向磁通机（IAFM）中的力和转矩。特定体积基础元素的使用有助于加速磁场的计算。麦克斯韦应力张量法用于力和转矩的计算，其中考虑了超导体的电磁状态。然后，将开发的模型引入到基于遗传算法的多目标优化过程中，以在考虑到与所考虑的HTS的物理和机械特性相关的约束的同时，使所考虑的结构中的磁转矩最大化并最小化超导线长。胶带。