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Permanent-magnet-motor cogging torque suppression method, system and device and readable storage medium

A technology of cogging torque and permanent magnet motor, which is applied in the direction of electromechanical devices, manufacturing motor generators, magnetic circuits, etc., can solve the problem of cogging torque reduction, difficulty in finding the slotting position and number of auxiliary slots, etc. problem, to achieve the effect of improving accuracy and effect

Inactive Publication Date: 2018-03-06
GUANGDONG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Permanent magnet motors use tooth crowns to open rectangular auxiliary slots. Through uniform slotting, the size and quantity of auxiliary slots are optimized to reduce the cogging torque. However, it is difficult to obtain the optimal slotting position and slotting of auxiliary slots in the existing technology Number

Method used

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  • Permanent-magnet-motor cogging torque suppression method, system and device and readable storage medium
  • Permanent-magnet-motor cogging torque suppression method, system and device and readable storage medium
  • Permanent-magnet-motor cogging torque suppression method, system and device and readable storage medium

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] The embodiment of the present invention discloses a method for suppressing the cogging torque of a permanent magnet motor, see figure 1 As shown, the method includes:

[0041] Step S11: Using the least common multiple of the number of armature slots and magnetic poles of the permanent magnet synchronous motor and the harmonic order of the target harmonic, calculate the auxiliary slot position set of the armature stator that suppresses the target harmoni...

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Abstract

The invention discloses a permanent-magnet-motor cogging torque suppression method, system and device and a readable storage medium of a computer. The method includes the following steps that according to the least common multiple of the number of armature slots of a permanent magnet motor and the number of magnetic poles and the harmonic number of target harmonic waves, the auxiliary slot position set of an armature stator corresponding to the target harmonic waves is calculated; according to the preset position selection principle, the slotting positions of auxiliary slots are selected fromthe auxiliary slot position set. According to the least common multiple of the number of armature slots of the permanent magnet motor and the number of the magnetic poles and the harmonic number of target harmonic waves, the auxiliary slot position set of the armature stator corresponding to the target harmonic waves is calculated, according to the preset position selection principle, the slottingpositions of the auxiliary slots are selected from the auxiliary slot position set, the slotting positions of the auxiliary slots for inhibiting the target harmonic waves are accurately provided, andthe precision and effect of cogging torque suppression are improved.

Description

technical field [0001] The invention relates to the field of permanent magnet motors, in particular to a method, system, device and computer-readable storage medium for suppressing cogging torque of permanent magnet motors. Background technique [0002] With the emergence of high-performance permanent magnet materials and the development of modern motor control technology, permanent magnet motors are more and more widely used in various sectors of the national economy. Permanent magnet motors have the characteristics of simple structure, high power density, and reliable operation. However, due to the unique mechanical structure of the permanent magnet motor itself, that is, the surface of the armature is slotted, when the stator and rotor move relative to each other, the magnetic permeability between the armature tooth and the permanent magnet in the pole arc part of the permanent magnet is basically unchanged, while the permanent magnet In a small area formed by one or two...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K15/02
CPCH02K1/165H02K15/024
Inventor 胡土雄黄开胜杜晓彬胡弼
Owner GUANGDONG UNIV OF TECH
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