Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros

This paper considers the finite-time synchronization of chaotic systems in the presence of model uncertainties and/or external disturbances. The synchronization happens between the two nonlinear master and slave systems. Control law is designed in such a way that the state variables of the slave sys...

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Main Authors: Sammaneh Mohammadpour, Tahereh Binazadeh
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Systems Science & Control Engineering
Subjects:
Online Access:http://dx.doi.org/10.1080/21642583.2018.1428695
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author Sammaneh Mohammadpour
Tahereh Binazadeh
author_facet Sammaneh Mohammadpour
Tahereh Binazadeh
author_sort Sammaneh Mohammadpour
collection DOAJ
description This paper considers the finite-time synchronization of chaotic systems in the presence of model uncertainties and/or external disturbances. The synchronization happens between the two nonlinear master and slave systems. Control law is designed in such a way that the state variables of the slave system follow the state variables of the master system in the presence of uncertainties and external disturbances. In order to design a robust finite-time controller, first, a novel terminal sliding surface is proposed and its finite-time convergence to zero is analytically proved. Then a terminal sliding mode controller is designed which can conquer the uncertainties and guarantees the finite-time stability of the sliding motion equations. In this regard, a theorem is proposed and according to the Lyapunov approach it is proved that the synchronization happenes in finite-time. Additionally, in order to show the applicability of the proposed controller, it is applied on two practical systems, the Duffing–Holmes system and chaotic gyroscope system. Computer simulations verify the theoretical results and also display the effective performance of the proposed controller.
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spelling doaj.art-8d1618c5d58347bdb402605250b9017c2022-12-22T01:30:14ZengTaylor & Francis GroupSystems Science & Control Engineering2164-25832018-01-0161283610.1080/21642583.2018.14286951428695Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyrosSammaneh Mohammadpour0Tahereh Binazadeh1Shiraz University of TechnologyShiraz University of TechnologyThis paper considers the finite-time synchronization of chaotic systems in the presence of model uncertainties and/or external disturbances. The synchronization happens between the two nonlinear master and slave systems. Control law is designed in such a way that the state variables of the slave system follow the state variables of the master system in the presence of uncertainties and external disturbances. In order to design a robust finite-time controller, first, a novel terminal sliding surface is proposed and its finite-time convergence to zero is analytically proved. Then a terminal sliding mode controller is designed which can conquer the uncertainties and guarantees the finite-time stability of the sliding motion equations. In this regard, a theorem is proposed and according to the Lyapunov approach it is proved that the synchronization happenes in finite-time. Additionally, in order to show the applicability of the proposed controller, it is applied on two practical systems, the Duffing–Holmes system and chaotic gyroscope system. Computer simulations verify the theoretical results and also display the effective performance of the proposed controller.http://dx.doi.org/10.1080/21642583.2018.1428695Chaotic systemsfinite-time controlrobust synchronizationterminal sliding modeLyapunov stability
spellingShingle Sammaneh Mohammadpour
Tahereh Binazadeh
Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros
Systems Science & Control Engineering
Chaotic systems
finite-time control
robust synchronization
terminal sliding mode
Lyapunov stability
title Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros
title_full Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros
title_fullStr Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros
title_full_unstemmed Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros
title_short Robust finite-time synchronization of uncertain chaotic systems: application on Duffing-Holmes system and chaos gyros
title_sort robust finite time synchronization of uncertain chaotic systems application on duffing holmes system and chaos gyros
topic Chaotic systems
finite-time control
robust synchronization
terminal sliding mode
Lyapunov stability
url http://dx.doi.org/10.1080/21642583.2018.1428695
work_keys_str_mv AT sammanehmohammadpour robustfinitetimesynchronizationofuncertainchaoticsystemsapplicationonduffingholmessystemandchaosgyros
AT taherehbinazadeh robustfinitetimesynchronizationofuncertainchaoticsystemsapplicationonduffingholmessystemandchaosgyros