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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, accurate design results, and overcoming inaccurate coefficients

Active Publication Date: 2021-04-27
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

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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 a surface-mounted permanent magnet motor electromagnetic design method, and the method comprises the steps of simple magnetic circuit design and electromagnetic field finite element calculation of a permanent magnet motor. The simple magnetic circuit design mainly takes the technical requirements of the motor as input, and according to the basic formula of the motor electromagnetic design, the size of a stator core of the permanent magnet motor and the initial size of a rotor magnetic pole are determined; the electromagnetic field finite element calculation comprises static magnetic field calculation and transient magnetic field calculation, wherein the static magnetic field calculation is used for determining the radial size of a rotor magnetic pole, and the transient magnetic field calculation is used for determining the axial length of the motor. The method provided by the invention is not limited by the size of the permanent magnet motor, overcomes the defects of inaccurate coefficient and the like in an empirical formula in the traditional motor design and calculation process, considers the saturation characteristic of the motor in calculation, improves the accuracy of a calculation result, and is particularly suitable for design analysis of a surface-mounted permanent magnet motor.

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 Applications(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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