Fuzzy Immune Self-Regulating PID Control of Networked Control System

Author

Fang, Laihua ; Wu, Zongzhi ; Wu, Aiguo ; Zheng, Aihong

Author_Institution

China Acad. of Safety Sci. & Technol., Beijing

fYear

2006

fDate

Nov. 28 2006-Dec. 1 2006

Firstpage

74

Lastpage

74

Abstract

Network-induced time delay is the main factor that deteriorates the performance of networked control system (NCS). In order to effectively restrain the impact of network delay on NCS, a fuzzy immune self- regulating PID control scheme is proposed. With ideas from the biological immune system, fuzzy immune PID control strategy is applied to NCS, in which parameter P is adaptively modulated by means of fuzzy immune algorithm, parameters I and D are dynamically regulated by fuzzy logic scheme. Simulation on network-based controlled DC motor is carried out so as to evaluate application of the presented control scheme in NCS. The result of simulation experiment shows validity of the control scheme and improvement in dynamic performance and robustness of NCS.

Keywords

DC motors; adaptive control; delays; fuzzy control; machine control; robust control; three-term control; biological immune system; dynamic performance; fuzzy immune PID control strategy; fuzzy immune self-regulating PID control; network-induced time delay; networked control system; Biological control systems; Biological system modeling; Control systems; Delay effects; Fuzzy control; Fuzzy logic; Fuzzy systems; Immune system; Networked control systems; Three-term control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence for Modelling, Control and Automation, 2006 and International Conference on Intelligent Agents, Web Technologies and Internet Commerce, International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

0-7695-2731-0

Type

conf

DOI

10.1109/CIMCA.2006.106

Filename

4052715