Modeling of Linear Variable Reluctance Motors with Magnetically Coupled Phases

D.G. Taylor and R. Ahmed (USA)


Variable reluctance motors, finite elementanalysis, least squares data fitting.


This paper is concerned with model development for a type of linear variable reluctance motor. The motor under study is a three-phase motor that exhibits magnetic coupling between phases. Finite element analysis is used to compute flux linkage, coenergy and force for various values of phase current and position, and least squares methods are used to fit these data to a mathematical model that accounts for spatial harmonics and magnetic saturation. Attention is restricted to the special case of single phase excitation in this initial investigation.

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