Eddy Current Computation in 3-Dimensional Models for Electrical Machine Applications

The paper presents the finite element method applied to eddy current problems in electrical machines and actuators. Both scalar and vector potential formulations are analysed. The nodal element and edge element methods are considered. The finite element equations are expressed using the notion of equivalent magnetic and electric networks coupled via sources. The presented network models contain branches associated with element edges (edge networks) or facets (facet networks). The network model of squirrel-cage winding and multiturn windings composed of solid conductors have been discussed.