A hybrid excitation salient pole segmented rotor switched flux motor
A technology of salient pole division and rotor switching, which is applied in the direction of synchronous machines, electromechanical devices, electrical components, etc., can solve the problems of low utilization rate of excitation current, limited magnetic adjustment ability, small average torque, etc., and achieve high motor efficiency , small wind resistance, and the effect of reducing torque ripple
Active Publication Date: 2022-08-02
SHANDONG UNIV OF TECH
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Problems solved by technology
[0007] Aiming at the problems that the excitation current utilization rate of the hybrid excitation switched flux motor is not high, the magnetic adjustment ability is limited, the average torque is small, and the torque ripple is large, the invention proposes a hybrid excitation flux path that can form a parallel magnetic circuit, and the rotor A switched flux motor with a U-shaped block structure as a whole
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Embodiment Construction
[0033] The present invention will be further described in detail below with reference to the accompanying drawings.
[0034] figure 1 It is a schematic structural diagram of a hybrid excitation salient pole segmented rotor switched flux motor of the present invention. The hybrid excitation salient-pole segmented rotor switched flux motor includes a stator core 1, an armature winding 2, an excitation winding 3, a housing 4, a permanent magnet 5, a salient-pole segmented rotor core 6, a shaft 7 and a rotor core rack 8;
[0035] The casing 4 is made of a circular non-magnetic material, and the stator core 1 is fixed inside;
[0036] A pair of parallel stator poles form a stator tooth, the stator core 1 is evenly distributed with 6X stator teeth, X is a positive integer, and in this embodiment, X=2;
[0037] The adjacent stator teeth are connected by the stator yoke, and the arc angle of one stator pole is 15 / X° mechanical angle;
[0038] The rotor consists of a rotor core fra...
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A hybrid excitation salient pole segmented rotor switched flux motor belongs to the technical field of automobile electrical appliances, comprising a stator core, an armature winding, an excitation winding, a casing, a permanent magnet, a salient pole segmented rotor core, a shaft and a rotor core frame; a stator The iron core is evenly distributed with 6X pairs of parallel stator teeth, the adjacent pairs of parallel stator poles are connected by the stator yoke, the rotor core frame has an odd number of evenly distributed U-shaped slots, and the bottom of the U-shaped slots is dovetail-shaped; the same pair Permanent magnets are embedded between the ends of the parallel stator poles, armature windings are wound around every other stator tooth, and excitation windings are wound around the stator poles that are not wound with the armature windings. The advantage of the invention is that the electric excitation magnetic flux path generated by the excitation winding and the permanent magnet magnetic flux path generated by the permanent magnet can form a parallel magnetic circuit, which has better magnetic regulation performance to adapt to different working conditions respectively.
Description
technical field [0001] The invention relates to a hybrid excitation salient pole segmented rotor switched magnetic flux motor, which belongs to the technical field of automobile electrical appliances. Background technique [0002] The switched flux motor has the advantages of simple structure, low cost and high system reliability. However, the power density and efficiency of the electrically excited switched-flux motor operating alone are relatively low, and the torque ripple is large. [0003] The hybrid excitation switched flux motor has the advantages of high energy density, easy adjustment of output torque and easy field weakening control. In the currently disclosed technology, most of the hybrid excitation switched flux motors are the permanent magnet flux path of the permanent magnet and the electric excitation flux path of the excitation winding to form a series magnetic circuit, and the electric excitation magnetic field needs to pass through the permanent magnet wi...
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IPC IPC(8): H02K21/44H02K21/04
CPCH02K21/44H02K21/04H02K2213/03
Inventor 荆建宁史立伟魏勇王俊华雷宣扬司涛
Owner SHANDONG UNIV OF TECH