Rotor Eddy Current Determination Using Finite Element Analysis for High-Speed Permanent Magnet Machines

This paper, is concerned with the determination of the eddy current losses in each part inside the rotor of the High-Speed Axial Flux Permanent Magnet (AFPM) Machine (starter / generator) that delivers a power of 18 kVA. The research is based on modeling and Finite Element (FE) simulation techniques using ANSYS where a quarter of the machine is modeled with the appropriate boundary conditions in order to minimize the simulation run time. Optimistic results were obtained which unlocked the potential for further research to validate the results via experimental setup and develop an appropriate analytical model that can facilitate a quick and accurate eddy current losses prediction in similar machines.