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Multi-motor synchronous drive control method, device and system

A multi-motor and motor unit technology, applied in the direction of speed adjustment of multiple motors, can solve problems such as poor synchronization effect and motor synchronization interference, and achieve the effects of cost control, load reduction, and high control accuracy

Active Publication Date: 2020-06-16
SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the traditional technology, since the synchronous drive motor is easily affected by the external complex working conditions such as load, it causes interference to the synchronization between the motors, resulting in poor synchronization effect

Method used

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  • Multi-motor synchronous drive control method, device and system
  • Multi-motor synchronous drive control method, device and system
  • Multi-motor synchronous drive control method, device and system

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Embodiment Construction

[0046] 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.

[0047] The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0048] Hereinafter, the terms "comprising",...

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Abstract

The embodiment of the invention relates to a multi-motor synchronous drive control method, device and system. A main controller respectively acquires the current rotating speed of each compensation object and the corresponding original duty ratio, and takes the current synchronous rotating speed compensation value of the compensation object as a synchronous rotating speed compensation error so asto determine a current first compensation duty ratio of the compensation object based on an IP control algorithm; the main controller performs repetitive control according to the first compensation duty ratio and inputs obtained results into a compensation link to obtain a second compensation duty ratio; the main controller takes the sum of the original duty ratio and the second compensation dutyratio as a final compensation duty ratio, and sends an adjusting instruction containing the final compensation duty ratio to a slave controller when it is recognized that the compensation object is the corresponding motor of a slave controller; and when the slave controller receives the adjusting instruction, the slave controller adjusts the current rotating speed of the corresponding motor connected with the slave controller. According to the invention, the synchronization control precision is high, so that the synchronization effect of multiple motors can be effectively improved when the synchronization of the multiple motors is controlled.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a multi-motor synchronous drive control method, device and system. Background technique [0002] Motor synchronous control technology has been more and more applied in various technical fields, and the requirements for motor synchronous control are also getting higher and higher. However, in the conventional technology, since the synchronous drive motor is easily affected by complex external conditions such as loads during operation, the synchronization between the motors is disturbed, resulting in poor synchronization effect. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a multi-motor synchronous drive control method, device and system. [0004] In one embodiment, the present invention provides a multi-motor synchronous drive control method, comprising: [0005] According to the preset synchronization rules an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/50
CPCH02P5/50
Inventor 陈毅东季传坤胡旺兴李平
Owner SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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