Composite structure duplex winding maglev switched reluctance motor

Abstract

The invention provides a composite structure duplex winding maglev switched reluctance motor which comprises a reluctance motor stator, a reluctance motor rotor, a conical magnetic bearing stator, a conical magnetic bearing rotor, torque windings, suspension force windings and a rotating shaft. The reluctance motor stator is of a salient pole structure, the conical magnetic bearing stator is of a conical salient pole structure, and the reluctance motor stator and the conical magnetic bearing stator are each provided with twelve teeth. The reluctance motor stator and the conical magnetic bearing stator are placed in a serial mode in the axial direction, and a gap is reserved between the reluctance motor stator and the conical magnetic bearing stator. The reluctance motor rotor is of an eight-pole structure, the conical magnetic bearing rotor is of a conical cylinder structure, and the reluctance motor rotor and the conical magnetic bearing rotor are arranged on the rotating shaft in a sleeving mode. The number of the torque windings and the number of the suspension force windings are both twelve, each torque winding is wound above the reluctance motor stator and the conical magnetic bearing stator at the same circumferential position, and each suspension force winding is wound on the conical magnetic bearing stator. The composite structure duplex winding maglev switched reluctance motor structurally achieves decoupling of the torque and the suspension force, and radial baring capacity is large; the influence of motional electromotive force on control over current chopped waves is eliminated, the real-time control effect of currents is good, high-speed adaptability is high, radial and axial suspending power is achieved, and the integration level is high.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a double-winding magnetic levitation switched reluctance motor with a composite structure. Background technique [0002] The bearingless switched reluctance motor is a new type of magnetic levitation motor developed at the end of the 20th century. The double-winding bearingless switched reluctance motor is to stack the levitation winding that generates the levitation force and the winding of the original switched reluctance motor on the stator of the motor. By controlling the current of the two sets of windings, it has the ability to rotate and self-levitate simultaneously, so that Achieve ultra-high-speed operation of the motor. The single-winding bearingless switched reluctance motor has the ability to rotate and self-suspend at the same time by controlling the current of a set of windings. [0003] A typical bearingless motor can only control the levitation of two...

AI Technical Summary

Problems solved by technology

From the above three composition forms, it can be seen that the bearingless motor needs to cooperate with at least one axial magnetic bearing to form a five-degree-of-freedom magnetic levitation system, which is also the technical bottleneck of the bearingless motor

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