Abstract
This paper proposes and analyzes a novel high-temperature superconducting (HTS) flux-switching transverse-flux (HTS-FSTF) machine with partitioned stator, which keeps the merits of stator-excitation HTS machine with static seals. The key is to adopt the axial partitioned stator structure to realize the independent partition arrangement of armature windings and HTS-excitation windings, as well as artfully place the flux barrier between them to minimize the impact of armature field on the critical field state of the HTS excitation. Moreover, by using the split-pole design, only a single ring-shaped HTS-excitation coil is employed, thus, easily implementing static seals of simple cooling Dewar pattern to improve the refrigeration system reliability and reduce costs. The operation principle based on the transverse-flux path analysis and the cooling Dewar design are described in details. Also, by using the three-dimensional finite-element analysis, the electromagnetic performances of the proposed machine are investigated, and its validity is verified.
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