Permanent magnet synchronous motor (PMSM) servo system control method based on fuzzy and active disturbance rejection control

A technology of active disturbance rejection control and active disturbance rejection controller, which is used in control systems, vector control systems, control of electromechanical brakes, etc.

Inactive Publication Date: 2013-11-20
HUNAN UNIV
View PDF1 Cites 84 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adjustment parameters of the nonlinear error feedback control law in this controller can only meet the control requirements with

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Permanent magnet synchronous motor (PMSM) servo system control method based on fuzzy and active disturbance rejection control
  • Permanent magnet synchronous motor (PMSM) servo system control method based on fuzzy and active disturbance rejection control
  • Permanent magnet synchronous motor (PMSM) servo system control method based on fuzzy and active disturbance rejection control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] Such as Figure 5 As shown, it discloses the system block diagram of the PMSM servo system control method based on the fuzzy automatic disturbance rejection control of the present invention, which adopts the HEIDENHAIN photoelectric encoder to collect the rotational speed signal and the rotor position signal of the PMSM servo motor, and the photoelectric encoder is installed At the end of the motor rotor shaft end, the Hall current sensor is used to collect the current signal of the motor at the same time. According to the collected motor current signal and speed signal, the collected rotor position signal is used as the feedback signal of the second-order fuzzy ADRC controller, combined with the states of each order of the extended state observer in the ADRC controller For the error between the variable estimation and the different order differentials produced by the tracking differentiator, the fuzzy inference rules are obtained through the experimental experience o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a PMSM servo system control method based on fuzzy and active disturbance rejection control. A position signal is given by a differential tracker to arrange a transition process so that the contradiction between rapidness and overshoot of a system is solved, and uncertainty, friction torques and external disturbance due to modeling errors of the system are observed via an expansion state observer; according to the error between the differentials generated by the differential tracker and state variation generated by the expansion state observer, a fuzzy inference rule is obtained with application of experimental experience of technical staff, so that a fuzzy rule control table of an error proportion coefficient, a differential coefficient and an integration coefficient is established; accurate control amount is obtained after de-fuzzification, so that parameter self-adaptive adjustment of a nonlinear error feedback control law is realized; and compensation amounts of the nonlinear error feedback control law and the expansion state observer to the total disturbance forms the control amount, thereby realizing optimal control for an controlled object. The method of the invention improves both tracking precision and disturbance rejection capability of the system.

Description

[0001] technical field [0002] The invention relates to a control method of a permanent magnet synchronous motor (PMSM) servo system based on fuzzy self-disturbance rejection, and belongs to the technical field of high-precision servo control systems. Background technique [0003] With the improvement of the control precision of the servo system, the system disturbance becomes an important factor affecting the precision of the servo control system. Disturbances often come from uncertain factors neglected in the modeling process, friction torque during system operation, sudden load changes, and parameter changes. The existence of these factors makes the performance of the closed-loop system worse or even unstable. In addition, under different operating conditions of the system, the control parameters of the system controller are different, which need to be manually adjusted in sections, and it is difficult to achieve precise adjustment in practice to achieve the best control p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02P21/13H02P25/02H02P27/08
Inventor 黄守道黄庆张文娟姜燕高剑
Owner HUNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap