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The fuzzy adaptation control method and its application of a kind of nonlinear system

Xueli Wu (College of Electrical Engineering and Information, Hebei University of Science and Technology, Shijiazhuang, China YanShan University, Qinhuangdao, China)
Xianghui Lu (College of Electrical Engineering and Information, Hebei University of Science and Technology, Shijiazhuang, China)
Hua Meng (College of Electrical Engineering and Information, Hebei University of Science and Technology, Shijiazhuang, China)
Ran Zhen (College of Electrical Engineering and Information, Hebei University of Science and Technology, Shijiazhuang, China)
Fanhua Meng (College of Electrical Engineering and Information, Hebei University of Science and Technology, Shijiazhuang, China)

Kybernetes

ISSN: 0368-492X

Article publication date: 16 October 2009

250

Abstract

Purpose

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The purpose of this paper is to propose a kind of fuzzy adaptive control method to control non‐linear system that has the characteristic of small time delay and fast respond speed.

Design/methodology/approach

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The paper analyzes the production process and the actual condition of the preheat process of the plating zinc and painting plastic scribbled of double layer welded pipe that has the small time delay and fast respond speed, and also gives the preheat process mathematical model. Fuzzy adaptive control method with hierarchical structure is used which aims at one non‐linear system that has the characteristic of small time delay and fast responds speed. Through the simulation, it proves the mentioned method is effective to control the temperature system for double layers welded pipe in welding process.

Findings

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Based on the mathematical model proposed about the production process and the actual condition of the preheat process, the fuzzy adaptive control method is effective to control the temperature system for double layers welded pipe in welding process.

Research limitations/implications

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The paper proposes fuzzy adaptive control method with hierarchical structure which has the basic fuzzy control grade, adaptive adjust grade, and process state judgment grade.

Practical implications

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A very useful method in welding process for double layers welded pipe.

Originality/value

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The new mathematical model is proposed about the production process, and the new control method is used in the temperature system for double layers welded pipe in welding process.

Keywords

Citation

Wu, X., Lu, X., Meng, H., Zhen, R. and Meng, F. (2009), "The fuzzy adaptation control method and its application of a kind of nonlinear system", Kybernetes, Vol. 38 No. 10, pp. 1693-1700. https://doi.org/10.1108/03684920910994051

Publisher

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Emerald Group Publishing Limited

Copyright © 2009, Emerald Group Publishing Limited

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