| Abstract |
In the design of a compact inverter-fed buried permanent magnet synchronous motor, the high-frequency
losses of the sparse rotor cage - which are difficult to predict - were assumed to be small.
To investigate these ohmic high-frequency losses of the rotor cage, fixed-speed time-stepping 2DFEM
calculations have been carried out. The losses due to only the magnets, magnets and sinusoidal
currents, high-frequency currents etc., and the actual currents are presented. The actual current
wave-forms were obtained from measurements on the manufactured prototype motor. |
