Theoretical and Experimental Analysis of Transverse Flux Linear Machines Using Mutually Coupled Windings for High Force Density

This paper presents an analysis method for a double salient linear machine with transverse flux for high force density. By employing mutually coupled windings, the utilizations of the magnetic and electric circuits are increased as well as the airgap flux density. The effects of tooth pitches of the translator and stator on the force output under a constant volume have been explored based on a rapidly simplified circuitry. Moreover, the electromagnetic features of the proposed machine are simulated and compared with that from 3-D finite element method including the waveforms of magnetic fluxes, inductances, and induced voltages. The correctness of the proposed analysis method is also confirmed by experimental results.