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An Optimal Design Method for the Number of Slots of Low-Speed ​​and High-Torque Permanent Magnet Synchronous Motor

A permanent magnet synchronous, optimized design technology, applied to synchronous motors with stationary armatures and rotating magnets, manufacturing motor generators, electric components, etc., can solve complex problems and other problems

Active Publication Date: 2022-03-15
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for how to choose the number of slots, due to the need to take into account these two factors, the problem is often more complicated

Method used

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  • An Optimal Design Method for the Number of Slots of Low-Speed ​​and High-Torque Permanent Magnet Synchronous Motor
  • An Optimal Design Method for the Number of Slots of Low-Speed ​​and High-Torque Permanent Magnet Synchronous Motor
  • An Optimal Design Method for the Number of Slots of Low-Speed ​​and High-Torque Permanent Magnet Synchronous Motor

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar symbols designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be understood as limiting the present invention.

[0022] Such as Figure 1-3 The characteristics of the optimal design method of the slot number of the low-speed high-torque permanent magnet synchronous motor of the present invention shown are to carry out as follows:

[0023] (1) Divide the number of slots per pole and phase of the stator into intervals between integers, the interval is an open interval and the left end point of the first interval is greater than 1, and the number of slots Q is selected equidistantly in the i-th interval i1 , Q i2 , Q i3 ,...Q in , and the number of slots in...

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Abstract

The invention discloses an optimal design method for the number of slots of a low-speed, high-torque permanent magnet synchronous motor. The number of stator slots is used as a parameter, and the optimal design is carried out with the goal of maximum overload capacity under the condition of ensuring a lower harmonic torque proportion. Using the method of integer interval division and screening one by one, the number of stator slots that best meets the engineering requirements is gradually approached. The invention takes into account both the harmonic torque suppression and the overload capacity of the motor, so that the running performance of the motor can better meet the engineering needs.

Description

technical field [0001] The invention relates to an optimal design method for the number of slots of a low-speed high-torque permanent magnet synchronous motor, in particular to an outer stator three-phase surface-mounted low-speed high-torque permanent magnet with a low proportion of harmonic torque and high overload capacity. Optimal design method for stator slot number of magnetic synchronous motor. Background technique [0002] With the improvement of industrial level, more and more heavy mechanical loads need to be dragged or transferred. In the economic environment of green production, it has become a trend in the industry to replace traditional internal combustion engines with electric motors. However, the traditional asynchronous motor has the inherent disadvantages of low power factor and low efficiency, while the permanent magnet synchronous motor has the advantages of high efficiency and high power factor because it has no electric excitation. However, in actual p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00H02K21/14H02K1/16
CPCH02K15/0006H02K21/14H02K1/165H02K2213/03
Inventor 鲍晓华朱然刘佶炜李仕豪洪涛
Owner HEFEI UNIV OF TECH
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