Double-stator magnetic suspension switch reluctance starting/power generation machine

Abstract

The invention discloses a double-stator magnetic suspension switch reluctance starting / power generation machine which sequentially comprises an inner stator, a rotor and an outer stator from inside to outside, the inner stator, wherein the rotor and the outer stator are in the salient pole type and are nested in a concentric mode; M main winding poles are arranged on the outer stator at equal intervals, and each main winding pole is provided with a main winding which achieves starting and power generation functions; N rotor salient poles are arranged on the rotor at equal intervals; O suspension poles are arranged in the inner stator at equal intervals, and each suspension pole is provided with a suspension winding which achieves a rotor suspension function; magnetic flow paths of the main windings are independent of magnetic flow paths of the suspension windings, the coupling problem between the starting / power generation function and the suspension function is solved, aligning areas of the suspension poles and the rotor are equal to pole widths of the suspension poles, and radial suspension performance is improved. The machine integrates the starting and power generation functions and the rotor self-suspension function, the structure of an engine can be more compact, and the engine is convenient 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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