Modelling, Analysis of Parameters and Tests of a Small Electronically Commutated Single-Phase Permanent-Magnet Reluctance Motor

The aim of this study is to evaluate the field flux in a small electronically commutated single-phase permanent magnet reluctance motor. Its structure is inherently three-dimensional. An analytical model is built so that an analysis of parameters can be easily conducted. With a first simple model, an optimum is found for the magnets' length that may permit to use disk-magnet technology. Yet, the value of the field flux lacks accuracy. In order to locate the main leakage fluxes, the finite element analysis is used on a bidimensional equivalent geometry. A second and satisfying analytical model is determined. Experimental results confirm the effectiveness of the model to fulfil analysis of parameters.