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

Control method of performance-maintaining preview repetition controller of indeterminate linear discrete system

A repetitive controller, linear discrete technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as rare related arguments

Active Publication Date: 2018-03-23
XIANGTAN UNIV
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many achievements have been made in the research of repetitive control and predictive control of discrete systems, there are few relevant arguments for combining the two.

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 performance-maintaining preview repetition controller of indeterminate linear discrete system
  • Control method of performance-maintaining preview repetition controller of indeterminate linear discrete system
  • Control method of performance-maintaining preview repetition controller of indeterminate linear discrete system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0056] The controller design flow chart involved in the present invention is as figure 1 As shown, the basic repetitive control system structure block diagram involved is as figure 2 As shown, the block diagram of the involved predictive repetitive control system is as image 3 Show. The specific design steps are as follows:

[0057] Step 1: The time domain form of the repeat controller is as follows:

[0058]

[0059] Where

[0060] e(k)=r(k)-y(k),

[0061] (2) is the error signal, L is the delay time of the time lag link, which is equal to the period of the reference input signal r(k), and v(k) is the output of the repeat controller.

[0062] Step 2: Obtain the coefficient matrix of the state space model of the un...

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 provides a control method of a performance-maintaining preview repetition controller of an indeterminate linear discrete system. The performance-maintaining preview repetition controlleris composed of a repetition control part, a state feedback part, a future goal value based preview feedforward compensation part and a future interference signal based preview feedforward compensation part. According to the control method, the repetition controller is introduced in a forward channel to improve the tracking precision, and a difference operator is used to obtain an augmented errorsystem including preview information of goal value signals and interference signals.

Description

Technical field [0001] The present invention proposes a control method of a predictive repeatable controller with guaranteed performance for an uncertain linear discrete system, which is used for high-precision tracking of periodic signals and suppression of harmonic interference, so as to realize the target signal of the system's fast tracking without static error. Background technique [0002] In the practical application of modern industry, we often encounter the control tasks of periodic signal tracking and interference suppression. Repetitive control provides an effective method to solve this kind of problems. The basic idea of ​​repetitive control is to introduce a positive feedback delay link in the control system, so that the system can improve the tracking accuracy through its own learning mechanism, and finally realize the tracking of the periodic reference signal without steady-state error or the periodic interference The signal is effectively suppressed. Although the...

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 Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 兰永红夏君君
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