Patent ID: 6664755
Filing Date: 2003-12-16
Classification: H02P

Abstract:
An intelligent electric motor and control system capable of operating either as an intelligent AC electric motor system or an intelligent DC electric motor system, comprising:an electric motor having a plurality of stator windings, a rotor, and a plurality of power terminals; a plurality of control gate circuits installed in the stator winding of the electric motor; and a control unit for outputting control signals to control said plurality of control gate circuits, wherein said plurality of control gate circuits alternately and periodically switch each of said plurality of stator windings of said electric motor to connect each of said plurality of power terminals having different phase sequences and phase angles of alternating-current power supply or to each of said plurality of power terminals having different polarities of direct-current power supply in response to said control signals from said control unit, so that an additional rotating magnetic field is added to an original rotating magnetic field generated by the power supply for adjusting the rotation speed and changing operation properties of the electric motor.