Hybrid motor

Abstract

A hybrid motor includes an induction motor and a synchronous motor combined. The hybrid motor includes a hollow rotor that includes conductor bars configured to form an annular shape at a position spaced apart from a rotation axis by a predetermined first distance and a synchronous motor equivalent that is disposed in an annular shape at a position spaced apart from the rotation axis by a predetermined second distance, an induction stator that includes induction stator windings positioned on a first radial side of the hollow rotor, and a synchronous stator that includes synchronous stator windings positioned on a second radial side of the hollow rotor.

1 . A hybrid motor, comprising:
 a hollow rotor comprising:   conductor bars configured to form an annular shape at a position spaced apart from a rotation axis by a predetermined first distance; and   a synchronous motor equivalent that is disposed in an annular shape at a position spaced apart from the rotation axis by a predetermined second distance;   an induction stator including induction stator windings positioned on a first radial side of the hollow rotor; and   a synchronous stator including synchronous stator windings positioned on a second radial side of the hollow rotor.   
     
     
         2 . The hybrid motor of  claim 1 , wherein the conductor bars and the induction stator are configured to operate as an induction motor,
 wherein the synchronous motor equivalent and the synchronous stator are configured to operate as a synchronous motor, and   wherein the induction stator and the synchronous stator are each configured to receive an electric current from an inverter.   
     
     
         3 . The hybrid motor of  claim 2 , wherein each of the inverters comprise:
 an induction inverter configured to electrically power the induction stator, and a synchronous inverter configured to electrically power the synchronous stator, and   wherein the induction stator is configured to receive electric current from the induction inverter and the synchronous stator is configured to receive electric current from the synchronous inverter, and wherein the induction stator and the synchronous stator are configured to operate concurrently.   
     
     
         4 . The hybrid motor of  claim 2 , wherein each of the inverters comprise:
 an induction inverter configured to electrically power the induction stator and a synchronous inverter configured to electrically power the synchronous stator, and   wherein the induction stator or the synchronous stator is configured to operate by receiving an electric current from either the induction inverter or the synchronous inverter.   
     
     
         5 . The hybrid motor of  claim 1 , wherein the induction stator has a different number of poles than the synchronous stator. 
     
     
         6 . The hybrid motor of  claim 2 , wherein the synchronous motor comprises:
 at least one of a permanent magnet synchronous motor (PMSM), a wound field synchronous motor (WFSM), and a synchronous reluctance motor (SynRM).   
     
     
         7 . The hybrid motor of  claim 2 , wherein the synchronous motor comprises a variable-flux motor.