Design of High-Speed Hybrid Hysteresis Motor Rotor Using Finite Element Model and Decision Process

This paper aims at designing a high-speed hysteresis motor rotor with permanent magnets embedded in the magnetic system. The considered motor, due to the rotational magnetization and considerable impact of harmonic losses in the rotor, is an electrical machine whose design requires the involvement of a field model. A multicriteria design procedure consisting of a computer experiment, employing time-stepping finite element and vector hysteresis models and a search for the feasible design using the analytic hierarchy process, is conducted. The feasible design is found uniquely and a prototype motor is constructed and verifyingly tested.