Modelling the Thermal Steady State of a Synchronous High-Speed Generator with Permanent Magnets Protected by a CFRP Sleeve

The article presents the possibilities of using the Finite Element Method (FEM) and Computational Fluid Dynamics (CFD) in the ANSYS Fluent software for modelling the thermal steady state of liquid-cooled electric machines. The FEM and CFD potential is illustrated with an example of a PMzK71-4 high-speed generator with permanent magnets having rated power P_N = 17 kW and rated rotational rate n_N = 15000 RPM, where the permanent magnets are protected against the adverse effects of centrifugal inertial force by a CFRP sleeve.