A high force density HTS tubular vernier machine

Abstract

In this paper two machines termed as dual stator tubular vernier machine (DSTVM) and high temperature superonductor dual stator tubular vernier machine (HTS-DSTVM) have been presented for wave energy extraction. The DSTVM provides high thrust force per magnet volume where as HTS-DSTVM can offer both high thrust force per unit magnet volume and high power factor simultaneously. The electromagnetic characteristics of the proposed machines are compared with that of a recently presented dual-stator spoke type linear vernier machine (DSSLVM). The 2-D FEM results validate that the proposed HTS-DSTVM yields higher thrust force density and higher power factor than the reference machine.