\(H_{\infty}\) neural-network-based discrete-time fuzzy control of continuous-time nonlinear systems with dither
type: Item
instance of: scholarly article
title: \(H_{\infty}\) neural-network-based discrete-time fuzzy control of continuous-time nonlinear systems with dither
zbMATH Open document ID: 1264.93136
DOI: 10.1155/2012/314964
author: Z.-R. Tsai
author: Jiing-Dong Hwang
published in: Mathematical Problems in Engineering
publication date: 2013-06-11T00:00:00Z
review text: Summary: We present an effective approach to stabilizing a continuous-time (CT) nonlinear system using dithers and a discrete-time (DT) fuzzy controller. A CT nonlinear system is first discretized to a DT nonlinear system. Then, a Neural-Network (NN) system is established to approximate a DT nonlinear system. Next, a Linear Difference Inclusion state-space representation is established for the dynamics of the NN system. Subsequently, a Takagi-Sugeno DT fuzzy controller is designed to stabilize this NN system. If the DT fuzzy controller cannot stabilize the NN system, a dither, as an auxiliary of the controller, is simultaneously introduced to stabilize the closed-loop CT nonlinear system by using the Simplex optimization and the linear matrix inequality method. This dither can be injected into the original CT nonlinear system by the proposed injecting procedure, and this NN system is established to approximate this dithered system. When the discretized frequency or sampling frequency of the CT system is sufficiently high, the DT system can maintain the dynamic of the CT system. We can design the sampling frequency, so the trajectory of the DT system and the relaxed CT system can be made as close as desired.
Mathematics Subject Classification ID: 93C42
Mathematics Subject Classification ID: 93B36
Mathematics Subject Classification ID: 93C83
Mathematics Subject Classification ID: 92B20
Mathematics Subject Classification ID: 93C55
zbMATH DE Number: 6173179
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2012/314964
OpenAlex ID: W2032138800
Wikidata QID: Q58911419
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description: scientific article; zbMATH DE number 6173179