A dual-stator magnetic levitation switch reluctance starter/generator

Abstract

The invention discloses a double-stator magnetic levitation switch reluctance starter / generator, which sequentially includes a salient pole type inner stator, a rotor and an outer stator from the inside to the outside, and the three are concentrically nested; the outer stator is equidistantly arranged with M main winding poles, and each main winding pole is provided with a main winding for starting and generating functions; N rotor salient poles are arranged at equal intervals on the rotor; O floating poles are arranged at equal intervals on the inner stator, each There is a levitation winding on each levitation pole to realize the levitation function of the rotor; the magnetic flux path of the main winding and the levitation winding are independent of each other, which solves the coupling problem between the start / power generation function and the levitation function of the rotor. The alignment area is equal to the extreme width of the suspension pole, which improves the radial suspension performance; the invention integrates the functions of start-up, power generation and rotor self-suspension, making the engine more compact and easy to maintain and control.

Description

technical field [0001] The invention relates to a double-stator magnetic levitation switch reluctance starter / generator, which belongs to the field of motor starters / generators. Background technique [0002] The switched reluctance starter / generator has the advantages of high mechanical strength, little effect on electromagnetic loss when the speed increases, high operating efficiency, and the generated current is a DC pulsating current. However, the high-speed operation of the rotor will cause mechanical bearing wear and shorten the service life of the motor and bearing. Torque ripple and electromagnetic noise are prone to occur during operation, which limits the application range of switched reluctance motors. [0003] The magnetic levitation switched reluctance starter / generator uses the magnetic field force to float the rotor in space, which can comprehensively utilize the performance advantages of the switched reluctance motor and the magnetic bearing, eliminate the fr...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a dual-stator magnetic levitation switch reluctance start that decouples the main winding from the suspension winding, improves the radial suspension performance, and integrates the functions of the electric starter, generator and magnetic bearing. / generator, the invention releases the engine space, solves the wear problem of mechanical bearings, and overcomes the coupling between the starting / generating function and the rotor suspension function, and increases the flexibility of the main winding and suspension winding control

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