Title:
QUASI-INVERSE SYSTEM CONTROL METHOD FOR NONLINEAR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/045653
Kind Code:
A1
Abstract:
A quasi-inverse system control method for a nonlinear system. The method comprises the steps of: establishing a mathematical model of a controlled system according to a relationship between a control target and an input quantity as well as a state quantity; approximately converting the original controlled system into a combination of an invertible system and another system, calculating an inverse system of the invertible system, mapping a combination of input of the original system and a real-time state quantity of the controlled system by using the inverse system to obtain a new system control target directly; and mapping a combination of a feedback quantity and the real-time state quantity of the controlled system by using the inverse system as well, performing feedback PID control, and then using an output quantity after the PID control as an input quantity of the original controlled system, so as to implement approximate linear control over the original controlled system, that is, allowing the controlled system to have a quasi-linearization characteristic. The method can implement global quasi-linearization as well as fast and stable control, and finally implement optimal control over global performance indexes.
Inventors:
XU QIPIN (CN)
YANG MING (CN)
YANG MING (CN)
Application Number:
PCT/CN2016/109171
Publication Date:
March 15, 2018
Filing Date:
December 09, 2016
Export Citation:
Assignee:
NARI TECHNOLOGY CO LTD (CN)
International Classes:
G05B11/42
Foreign References:
| CN101242156A | 2008-08-13 | |||
| CN102969948A | 2013-03-13 | |||
| CN103557037A | 2014-02-05 | |||
| CN102904505A | 2013-01-30 | |||
| CN103105773A | 2013-05-15 | |||
| US5091843A | 1992-02-25 |
Other References:
HUANG, YINRONG ET AL.: "A Inverse Control System based on least squares support vector machine and PID", JOURNAL OF MECHANICAL & ELECTRICAL ENGINEERING, vol. 27, no. 2, 20 February 2010 (2010-02-20), pages 75 - 78
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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