The invention discloses a variable-current variable-speed non-commutated
permanent magnet direct current motor, belongs to the field of
direct current motors, and solves the problem that the existingdirect current motor consumes a lot of
electric energy so as to overcome a magnetic pull of a permanent
magnet stator to a rotor. The variable-current variable-speed non-commutated
permanent magnet direct current motor comprises a pedestal, a coil inner rotor, a permanent
magnet inner
stator, a coil outer rotor and a permanent
magnet outer
stator, and further comprises a rotor shaft, rotor shaft supports, a rotor shaft
magnetic levitation inner sleeve, a rotor shaft
magnetic levitation outer sleeve, a support
magnetic levitation inner sleeve and a support magnetic
levitation outer sleeve, wherein the two ends of the rotor shaft are arranged inside support bearings of the two rotor shaft supports; the rotor shaft is tightly sleeved inside the inner cavity of the coil inner rotor; the rotorshaft magnetic
levitation inner sleeve is sleeved inside external-
diameter openings of the two ends of the coil inner rotor; the rotor shaft magnetic
levitation outer sleeve is tightly sleeved insideinternal-
diameter openings of the two ends of the permanent magnet inner stator. A high-power ultrahigh-speed
permanent magnet direct current motor or generator can be manufactured as required; the variable-current variable-speed non-commutated permanent magnet
direct current motor is applicable to the field, which needs power or power generation, of electric vehicles, industrial and mining enterprises and the like.