Design and Analysis of Modular Flux-Concentrating HTS Permanent-Magnet Vernier Machine

作者：Zhang, Yang; Lin, Heyun^*; Fang, Shuhua; Decker, Duane; Wang, Dong

来源：IEEE Transactions on Applied Superconductivity, 2016, 26(3): 5204305.

DOI：10.1109/TASC.2016.2537039

• Direct drive
• flux-concentrating
• flux-gap
• high-temperature superconductor (HTS)
• permanent magnet synchronous machine (PMSM)
• vernier machine

In this paper, a novel modular flux-concentrating high-temperature superconductor (HTS) permanent-magnet (PM) vernier machine (FCHTS-PMVM) is proposed and designed for the direct-drive application, which can simultaneously offer low-speed large-torque capability and simplify the manufacture process by using the segmented stator modular design. HTS bulks and spoke-array PMs are emplaced in the spaces between adjacent flux-modulation poles and employed in rotor, respectively, which greatly reduce the flux leakage and improve the torque density. The electromagnetic characteristics of the machine, such as winding factor, magnetic saturation, no-load air-gap flux density, flux linkage, back-EMF, inductance, losses, on-load torque, and cogging torque, are comprehensively investigated by using finite-element analysis. It is demonstrated that the electromagnetic performance of the proposed modular FCHTS-PMVM with a slot/pole combination of 24/19/5 can be significantly improved through proper flux-gap width design.

• 出版日期2016-4
• 单位东南大学