A refined approach exploiting tubes of flux for analysis of linear switched reluctance motors

Abstract

A field modelling approach is presented exploiting approximate magnetic flux distributions. The method is an extension of flux-tubes and tubes-and-slices techniques. A combination of an equivalent magnetic circuit approach with improved description of relevant flux paths allows for a computationally efficient algorithm suitable for design optimization. The method is illustrated using an example of a linear switched reluctance motor and validated using finite element simulations.