Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Control Method of Permanent Magnet Synchronous Motor Based on Disturbance Observer and Repetitive Controller

A permanent magnet synchronous motor and repetitive controller technology, applied in the control of generators, motor generators, electronic commutation motor control, etc., can solve the problems of low tracking accuracy and poor interference suppression ability, and achieve system structure Simple, high-precision tracking, and good stability

Active Publication Date: 2020-04-28
XIANGTAN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a permanent magnet motor speed control method based on a disturbance observer and a repetitive controller, aiming to solve the problems of weak interference suppression ability and low tracking accuracy in conventional control methods

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
  • Control Method of Permanent Magnet Synchronous Motor Based on Disturbance Observer and Repetitive Controller
  • Control Method of Permanent Magnet Synchronous Motor Based on Disturbance Observer and Repetitive Controller
  • Control Method of Permanent Magnet Synchronous Motor Based on Disturbance Observer and Repetitive Controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 2 The block diagram forms a disturbance observer control scheme for permanent magnet synchronous motors based on repetitive control.

[0043] The invention discloses a control method of a permanent magnet synchronous motor, and the specific steps are as follows.

[0044] In the embodiment of the present invention, relevant parameter sample information is collected in the PMSM actual operating condition environment, system identification is performed, and a mathematical model in the d-q coordinate system is established according to the relevant parameters. According to the mathematical model, the model of the disturbance observer is deduced, and the control input represented by the system output value and estimated value is obtained, so as to design the controller. PMSM under the action of the controller, the motor servo output can track the desired output signal with high precision.

[0045] In the embodiment of the present invention, the repetitive controller...

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 discloses a permanent magnet synchronous motor speed regulation control method based on a disturbance observer and a repetitive controller. According to the permanent magnet synchronous motor speed regulation control method based on the disturbance observer and the repetitive controller, the disturbance observer is established to reconfigure various disturbance in the system; the reconfigured disturbance information is equivalent to feedback control input to be fully compensated so as to suppress the influence on the system from the disturbance; and on the basis of the feedback control, the repetitive controller is introduced to a forward channel so as to improve the tracking performance of the system. By adding the disturbance observer in a position link, control on the position link is not affected by the parameter changes of the permanent magnet synchronous motor and external disturbance, so that the disturbance suppression capability of the permanent magnet synchronous motor is improved; and in addition, compared with the conventional PID control based on the disturbance observer, the disturbance observer-based repetitive control of the speed regulation control method provided by the invention can ensure that the error is floating within a quite small range, so that the tracking precision of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet synchronous motor control, in particular to a permanent magnet motor speed regulation control method based on a disturbance observer and a repetitive controller. Background technique [0002] With the rapid development of modern science and technology, especially the continuous development of power electronics technology, rare earth permanent magnet materials, and motor control technology, favorable conditions have been created for the development of AC servo systems. Permanent magnet synchronous motor AC servo systems are now widely used in industries, National defense, manufacturing, household appliances and other fields are widely used, especially in fields such as robots, precision radars, military weapons, and CNC machine tools that require higher and higher performance and control accuracy of AC servo motors. AC servo systems are receiving more and more attention. Much attention. ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/13H02P21/14
CPCH02P21/0021H02P21/13
Inventor 兰永红戴亮陈才学
Owner XIANGTAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com