A (12/10)k three-phase n-channel doubly salient pole motor

Abstract

The invention discloses a (12 / 10)k three-phase n-channel doubly salient motor, which comprises a stator core, a rotor core and an air gap, wherein the rotor core is located in the stator core, and the rotor core and the stator core are provided with the air gap therebetween. The (12 / 10)k three-phase n-channel doubly salient motor is characterized in that the rotor core is provided with 10k rotor poles, and the stator core is provided with 12k stator poles, wherein k is a positive integer; the adjacent stator poles are provided with a stator slot therebetween; and each stator slot is internally provided with an excitation winding and a three-phase armature winding. The motor comprises n three-phase armature windings and n excitation windings, wherein n equals k or 2k. Same-phase windings of the three-phase armature windings are in forward connection so as to form magnetic flux with the same direction, two different-phase windings which are respectively wound on the adjacent stator poles and belong to two three-phase armature windings form magnetic flux with the direction being opposite, and a short magnetic circuit structure is formed. The motor disclosed by the invention is novel in structure and simple and reliable in control, and has good application prospects in the aspects of aviation, aerospace, household electrical appliances and the like.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a (12 / 10)k three-phase n-channel double salient pole motor. Background technique [0002] The existing (6 / 5)k structure doubly salient pole motor has the following advantages: (1) The excitation winding and the armature winding are evenly distributed, and the three-phase electromotive force is a symmetrical sine wave. It can increase the output torque and increase the power density of the motor. (2) When the stator pole of the same phase is aligned with the rotor pole, the opposite stator pole of the phase must be aligned with the rotor slot, and the inductance of the phase winding changes little with the rotor angle, resulting in zero reluctance torque. (3) The self-inductance of the excitation winding changes very little with the rotor angle, resulting in a small cogging torque and a small torque ripple of the motor. [0003] The stator and rotor of the motor are salient pole ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a (12 / 10)k three-phase n-channel doubly salient pole motor to solve the problem of low reliability caused by the existing doubly salient pole motor having only one set of windings question

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