Author:

Keywords:

Science & Technology, Technology, Physical Sciences, Engineering, Electrical & Electronic, Physics, Applied, Engineering, Physics, eddy currents, finite-element methods, moving bodies, single-phase induction machines, MOTORS, 02 Physical Sciences, 09 Engineering, Applied Physics, 40 Engineering, 51 Physical sciences

Abstract:

A time-harmonic finite-element formulation is strongly coupled to fast Fourier transforms, discretising a particular kind of interface conditions. The approach enables the splitting of the elliptical air-gap field, typical for single-phase induction machines, into two contra-rotating parts that are applied to two distinct rotor models. Motional eddy-current effects can then be incorporated by slip transformation. The simulation of a capacitor-run motor demonstrates the coupled discretization scheme and the high efficiency of this approach.