Control method, device and computer readable storage medium of permanent magnet synchronous motor

A technology of permanent magnet synchronous motor and control method, which is applied in the direction of motor generator control, AC motor control, and control of electromechanical transmission devices, and can solve the problems of poor dynamic performance of permanent magnet synchronous motors, etc., and achieve slow speed response and guaranteed Stability, the effect of improving dynamic performance

Active Publication Date: 2020-08-04
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to propose a control method, device and computer-readable storage medium of a permanent magnet synchronous motor, aiming at solving the technical problem of poor dynamic performance of the permanent magnet synchronous motor in the prior art

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  • Control method, device and computer readable storage medium of permanent magnet synchronous motor
  • Control method, device and computer readable storage medium of permanent magnet synchronous motor
  • Control method, device and computer readable storage medium of permanent magnet synchronous motor

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Embodiment Construction

[0054] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0055] The solution of the embodiment of the present invention is mainly: by determining the current operating area of ​​the permanent magnet synchronous motor, and based on the currently operating operating area, and the preset corresponding relationship between the operating area and the speed loop bandwidth (different operating areas correspond to Different speed loop bandwidths), set the speed loop bandwidth suitable for the permanent magnet synchronous motor and the current operating work area, so that during the operation of the permanent magnet synchronous motor, the stability of the permanent magnet synchronous motor operation is guaranteed, and at the same time Solved the problem of slow speed response due to too low speed loop bandwidth. Through the technical solution of the embodiment of the present inventi...

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Abstract

The invention discloses a control method of a permanent magnet synchronous motor. The method includes the steps of determining the working area where the permanent magnet synchronous motor currently runs; determining the current speed ring bandwidth corresponding to the working area where the permanent magnet synchronous motor currently runs according to the correspondence between preset working areas and speed ring bandwidths, wherein different working areas correspond to different speed ring bandwidths; setting the speed ring bandwidth of the permanent magnet synchronous motor to be the current speed ring bandwidth. The invention further discloses a control device of the permanent magnet synchronous motor and a computer readable storage medium. The dynamic performance of the permanent magnet synchronous motor is improved.

Description

technical field [0001] The present invention relates to the field of motor technology, in particular to a control method, device and computer-readable storage medium for a permanent magnet synchronous motor. Background technique [0002] Nowadays, permanent magnet synchronous motors have been widely used, such as variable frequency compressors based on permanent magnet synchronous motors, fans based on permanent magnet synchronous motors, and the like. In various application scenarios, sometimes it is necessary for the permanent magnet synchronous motor to run in the field weakening area at high frequency; sometimes it is required for the permanent magnet synchronous motor to run in the non-field weakening area at low frequency. Since the permanent magnet synchronous motor has a field-weakening control loop added in the field-weakening area, the speed response in the field-weakening area is slower than that in the non-field-weakening area, and because the speed response is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P25/024H02P27/08
Inventor 黄招彬
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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