Method for operating a synchronous motor, involves applying harmonical voltage fundamental oscillation, and amplitude satisfies harmonic relative to amplitude of voltage fundamental oscillation

摘要

The method involves applying harmonical voltage fundamental oscillation. An amplitude satisfies a harmonic relative to the amplitude of the voltage fundamental oscillation. The voltage fundamental oscillation is applied on a pole solenoid coil of the synchronous motor. An independent claim is also included for a power supply device with supply unit.