An electromagnetic rotating motor system that comprise of a grooved wheel with one or more permanent magnets tangentially embedded in a horse-shoe pattern within the groove around the wheel rim with similar poles pointing in the same direction and wherein induction coils or electromagnets are positioned to fit tangentially between the permanent magnet(s) in the groove with the pole axis of the electromagnet parallel to that of the permanent magnets and with the coiling and powering made such that it generates magnetic poles that are similarly aligned to the poles of the permanent magnets such that when current is passed through the coil, the poles of the electromagnet and the permanent magnet repel each other forcing the wheel holding the magnets to rotate away from the coil.

An annular rotating armature is presented. The annular rotating armature includes an armature winding having a plurality of coils, an armature support structure and a magnetic shield disposed between the armature winding and the armature support structure. The magnetic shield having a first magnetic shield ring, a second magnetic shield ring disposed concentric to the first magnetic shield ring and coupled to the first magnetic shield ring via a magnetic shield bridge link. An air gap is formed between the first magnetic shield ring and the second magnetic shield ring. The magnetic shield bridge link is disposed within the air gap. A superconducting generator including the annular rotating armature and a wind turbine having such superconducting generator are also presented.

A rotor assembly for a DC motor is provided which includes a rotor having a rotor shaft, a commutator mounted to the rotor shaft, and a varistor which is connected to the commutator via an electrically-conductive solderless fixing means, such as an electrically-conductive adhesive.

An annular rotating armature is presented. The annular rotating armature includes an armature winding having a plurality of coils, an armature support structure and a magnetic shield disposed between the armature winding and the armature support structure. The magnetic shield having a first magnetic shield ring, a second magnetic shield ring disposed concentric to the first magnetic shield ring and coupled to the first magnetic shield ring via a magnetic shield bridge link. An air gap is formed between the first magnetic shield ring and the second magnetic shield ring. The magnetic shield bridge link is disposed within the air gap. A superconducting generator including the annular rotating armature and a wind turbine having such superconducting generator are also presented.

A motor includes a rotor which is rotatable with a central axis that extends vertically as a center and in which a rotor magnet is disposed; a stator which faces the rotor in a radial direction; and a position detection part which is located on one side of an axial direction of the rotor magnet and which detects a magnetic flux of the rotor magnet, wherein in the rotor magnet, magnetization regions magnetized with different polarities are alternately disposed in a circumferential direction, and the rotor includes a shield member which faces, in an axial direction, a part of the rotor magnet on the one side of the axial direction.

A motor includes a rotor which is rotatable with a central axis that extends vertically as a center and in which a rotor magnet is disposed; a stator which faces the rotor in a radial direction; and a position detection part which is located on one side of an axial direction of the rotor magnet and which detects a magnetic flux of the rotor magnet, wherein in the rotor magnet, magnetization regions magnetized with different polarities are alternately disposed in a circumferential direction, and the rotor includes a shield member which faces, in an axial direction, a part of the rotor magnet on the one side of the axial direction.

The electric motor system of the present invention includes an electric motor and a driving device. The electric motor includes a grounded housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection. The driving device is connected with the multi-phase stator windings and includes a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit. The voltage stabilizing capacitor is connected with an output end of the rectifying circuit to provide a direct-current power source to a direct-current power source circuit. The high-frequency driving circuit is connected with the direct-current power source circuit and the multi-phase stator windings, and generates multi-phase driving signals to drive the multi-phase stator windings. A high-frequency harmonic suppressing device is connected with the neutral point and the direct-current power source circuit.

The electric motor system of the present invention includes an electric motor and a driving device. The electric motor includes a grounded housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection. The driving device is connected with the multi-phase stator windings and includes a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit. The voltage stabilizing capacitor is connected with an output end of the rectifying circuit to provide a direct-current power source to a direct-current power source circuit. The high-frequency driving circuit is connected with the direct-current power source circuit and the multi-phase stator windings, and generates multi-phase driving signals to drive the multi-phase stator windings. A high-frequency harmonic suppressing device is connected with the neutral point and the direct-current power source circuit.

An electric motor has a stator defining multiple stator poles with associated electrical windings, and a rotor having multiple rotor poles. The rotor has flux barriers between adjacent rotor poles, the flux barriers each having a material with an electrical conductivity higher than the rotor pole material. The flux barriers are electrically isolated from one another external to the ferromagnetic material. Eddy currents are induced in the flux barrier to cause destructive interference of an impending magnetic field, such that the flux barrier effectively acts to inhibit magnetic flux during motor operation, which in some cases will result in a repulsive force that will act to increase an induced motive force on the rotor poles.

An electric motor has a stator defining multiple stator poles with associated electrical windings, and a rotor having multiple rotor poles. The rotor has flux barriers between adjacent rotor poles, the flux barriers each having a material with an electrical conductivity higher than the rotor pole material. The flux barriers are electrically isolated from one another external to the ferromagnetic material. Eddy currents are induced in the flux barrier to cause destructive interference of an impending magnetic field, such that the flux barrier effectively acts to inhibit magnetic flux during motor operation, which in some cases will result in a repulsive force that will act to increase an induced motive force on the rotor poles.