Design and analysis of a HTS flux-switching machine for wind energy conversion

Abstract—This paper proposes a new high-temperature super-conductor (HTS) flux-switching machine with the merit of high power density for the direct-drive wind energy conversion system. The key is to introduce HTS windings to replace permanent magnet material in the flux-switching permanent magnet ma-chine. Also, the use of HTS field excitation windings can easily achieve constant output armature voltage under time-varying wind speeds. By using the finite element analysis, the machine performances are analyzed. Hence, the validity of the proposed machine is verified. Index Terms—Finite element analysis, flux-switching machine, high-temperature superconductor, wind energy conversion. I