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A motor speed control method, device and system based on ADRC algorithm

A technology of motor speed and control method, which is applied in the direction of single motor speed/torque control, control system, motor control, etc., which can solve the problems of easy damage of the motor, and achieve the effects of reducing the cost of use, stabilizing the response, and reducing the complexity

Active Publication Date: 2020-07-24
江苏车管家环卫有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It solves the problem of high response speed of motor control without overshooting, and the problem of easy damage of the motor that cannot be eliminated in time due to faults, improves the reliability of permanent magnet motors, and reduces the cost of motor use

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  • A motor speed control method, device and system based on ADRC algorithm
  • A motor speed control method, device and system based on ADRC algorithm
  • A motor speed control method, device and system based on ADRC algorithm

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Embodiment Construction

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0040] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

[0041] In one emb...

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Abstract

The invention provides an ADRC (Active Disturbance Rejection Control)-algorithm-based motor rotating speed control method, apparatus and system. The ADRC-algorithm-based motor rotating speed control method includes the steps: S300, obtaining a current pulse duty ratio of a driving motor according to the target rotating speed of the motor, the current rotating speed of the motor, and the current observed system disturbance value estimated by the ADRC algorithm; S400, obtaining the next rotating speed of the motor according to the feedback information of a speed sensor; S500, determining whetherthe current pulse duty ratio is not lower than the value obtained by multiplying the target pulse duty ratio by the first preset coefficient; S600, if so, decreasing the next disturbance value outputby an extended state observer according to the next rotating speed, according to a preset rule, and taking the decreased next disturbance value as the next observed system disturbance value; and S800, taking the next rotating speed as the current rotating speed, taking the next observed system disturbance value as the current observed system disturbance value, and jumping to the step S300 to enable the rotating speed of the motor to approach the target rotating speed. The ADRC-algorithm-based motor rotating speed control method can avoid the coordinated adjustment of multi-parameters of ADRC,can effectively reduce the overshoot, and can achieve a fast and stable response of the motor speed.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a motor speed control method, device and system based on an ADRC algorithm. Background technique [0002] With the development of industry, there are more and more demands for motors in the industry, and the requirements for motor control are also getting higher and higher. ADRC (Active Disturbance Rejection Control, Active Disturbance Rejection Control) algorithm is a control method proposed by researcher Han Jingqing of the Chinese Academy of Sciences. It is widely used because it does not depend on precise mathematical models. This algorithm is also used in the field of motor control. [0003] Such as Figure 8 As shown, the traditional ADRC active disturbance rejection control algorithm includes tracking differentiator, state error feedback control, and extended state observer. The algorithm is complex and has many parameters. It can achieve fast and stable control of the motor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/06H02P23/14H02P29/60
CPCH02P6/06H02P23/14H02P29/60
Inventor 王修立张小
Owner 江苏车管家环卫有限公司