Electromagnetic Design Method of Surface-mounted Permanent Magnet Motor

A permanent magnet motor and electromagnetic design technology, applied in the manufacture of motor generators, electromechanical devices, electric components, etc., can solve problems such as large gaps, achieve the effects of improving accuracy, overcoming inaccurate coefficients, and accurate design results

Active Publication Date: 2022-03-29
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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AI Technical Summary

Problems solved by technology

[0005] The method for electromagnetic design of a surface-mounted permanent magnet motor provided by the present invention aims to overcome the shortcomings of the large gap between the design and test results of the existing traditional magnetic circuit design method, so as to quickly and accurately design a surface-mounted permanent magnet motor. Purpose

Method used

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  • Electromagnetic Design Method of Surface-mounted Permanent Magnet Motor
  • Electromagnetic Design Method of Surface-mounted Permanent Magnet Motor

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0028] refer to figure 1 As shown, the electromagnetic design method of a surface-mounted permanent magnet motor disclosed by the present invention mainly includes the following steps

[0029] (1) Enter the technical parameters of the permanent magnet motor: including rated power, rated voltage, efficiency and power factor, cooling condition...

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Abstract

The invention discloses an electromagnetic design method of a surface-mounted permanent magnet motor, which includes a brief magnetic circuit design and electromagnetic field finite element calculation of the permanent magnet motor. The brief magnetic circuit design is mainly based on the technical requirements of the motor as input, according to the The basic formula of electromagnetic design, which determines the size contained in the stator core of the permanent magnet motor and the preliminary size of the rotor pole; the finite element calculation of the electromagnetic field includes static magnetic field calculation and transient magnetic field calculation, and the static magnetic field calculation is used to determine The radial dimension of the rotor poles, the transient magnetic field calculation described is used to determine the axial length of the motor. The method involved in the invention is not limited by the size of the permanent magnet motor, and overcomes the inaccurate coefficients in the empirical formula of the traditional motor design and calculation process. At the same time, the invention considers the saturation characteristics of the motor in the calculation, and improves the accuracy of the calculation results. It is especially suitable for the design analysis of surface-mounted permanent magnet motors.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic design of motors, and in particular relates to an electromagnetic design method of a surface-mounted permanent magnet motor. Background technique [0002] With the continuous improvement of power electronics technology and the performance of permanent magnet materials, permanent magnet synchronous motors have been widely used in various industries due to their advantages such as high efficiency, energy saving, small size, light weight, low energy consumption, and low noise. Almost all fields of aerospace, ship electric propulsion, mining machinery, industrial and agricultural production and daily life. [0003] There are various structural forms of permanent magnet synchronous motors, among which the surface-mounted rotor structure has the advantages of simple structure and small armature reaction. [0004] For the design of surface-mounted permanent magnet synchronous motors, in the trad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/03
CPCH02K15/03
Inventor 张文敏张松孙筱琴
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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