High-speed AC motor including the function of a magnetic frequency tripler

The new electric motor is the magnetic combination of a magnetic frequency multiplier and a AC motor which share the common magnetic yoke. The motor operates near the synchronous speed (10,800 rpm) by applied the single-phase commercial source at 60 Hz. The new machine is called "high-speed hybrid AC motor" because the combination of a motor and a frequency converter. This paper describes the structure and the operating characteristics of the new motor.