Thermalandfluid dynamical aspects inthedesign ofanAxial FluxPermanent MagnetSynchronous Machine withSoftMagnetic CompoundStator

The paperinvestigates thethermal behaviour of Synchronous AxialFluxPermanentMagnetMachines. Computation ofthermalfield isperformed viaa coupled thermal andfluid dynamical modelbasedonFinite Element Analysis. Different two-dimensional approaches areusedand thencompared onthebasis ofexperimental tests performed on alaboratory testrig. TheAxial Fluxmachine employed fortests and simulations has a SoftMagneticCompoundcore. Temperature field ofthesurface ofbackironandwindings are experimentally assessed andtheimplementation oftheFEM modelispresented. Keywords - Electrical machines, Axialfluxmachines, Finite Elements Analysis, FEM,Thermalanalysis.