Study of Multiple Teeth Linear Switched and Hybrid Reluctance Motors

Abstract

The main contribution of this paper is to propose two multiple teeth linear hybrid reluctance motors (MT-LHRMs), the permanent magnets of which are placed between the teeth of the adjacent modules of translator. The first MT-LHRM has translator yoke, in which the flux lines of PMs traverse a long path, while, in the second topology the flux lines of the PMs have a shorter path. To demonstrated the improved performance, the two novel topologies are introduced and the working principles are discussed. The two motors are simulated using two-dimensional finite element analysis (FEA) software, and the results are provided in terms of flux lines, magnetic flux density distributions, flux linkage, and static thrust. It is evident from the results that the PMs contribute to enhance the average thrust under different excitation currents by up to 100% compared to the PMless structures.