New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems

A new predefined time sliding mode control theme is proposed and applies to the multi-switch combination–combination synchronization (MSCCS) of fractional-order (FO) hyperchaotic systems. Firstly, based on the Lyapunov stability theory, we demonstrate the effectiveness of our proposed predefined tim...

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Main Authors: Hailong Zhang, Zhaojun Xi
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Fractal and Fractional
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Online Access:https://www.mdpi.com/2504-3110/9/3/147
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author Hailong Zhang
Zhaojun Xi
author_facet Hailong Zhang
Zhaojun Xi
author_sort Hailong Zhang
collection DOAJ
description A new predefined time sliding mode control theme is proposed and applies to the multi-switch combination–combination synchronization (MSCCS) of fractional-order (FO) hyperchaotic systems. Firstly, based on the Lyapunov stability theory, we demonstrate the effectiveness of our proposed predefined time sliding mode control theme. Meanwhile, based on the new predefined time control strategy, we propose new sliding mode surfaces and controllers to achieve the MSCCS of FO hyperchaotic systems. Considering the system’s external environment’s complexity in practical applications, the parameter uncertainties and external disturbances are added to the FO hyperchaotic system. Through the final numerical simulation, the predefined time slide mode controller proposed in this paper can make the drive–response systems reach the predefined time synchronization, thus proving the effectiveness of the control strategy and its robustness to some unfavorable factors, such as external perturbations.
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spelling doaj-art-f0dddb6cb71d474d91dd2fda4a7042e02025-08-20T02:11:11ZengMDPI AGFractal and Fractional2504-31102025-02-019314710.3390/fractalfract9030147New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic SystemsHailong Zhang0Zhaojun Xi1School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaA new predefined time sliding mode control theme is proposed and applies to the multi-switch combination–combination synchronization (MSCCS) of fractional-order (FO) hyperchaotic systems. Firstly, based on the Lyapunov stability theory, we demonstrate the effectiveness of our proposed predefined time sliding mode control theme. Meanwhile, based on the new predefined time control strategy, we propose new sliding mode surfaces and controllers to achieve the MSCCS of FO hyperchaotic systems. Considering the system’s external environment’s complexity in practical applications, the parameter uncertainties and external disturbances are added to the FO hyperchaotic system. Through the final numerical simulation, the predefined time slide mode controller proposed in this paper can make the drive–response systems reach the predefined time synchronization, thus proving the effectiveness of the control strategy and its robustness to some unfavorable factors, such as external perturbations.https://www.mdpi.com/2504-3110/9/3/147fractional-order hyperchaotic systempredefined time synchronizationmulti-switch combination–combination synchronization
spellingShingle Hailong Zhang
Zhaojun Xi
New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems
Fractal and Fractional
fractional-order hyperchaotic system
predefined time synchronization
multi-switch combination–combination synchronization
title New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems
title_full New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems
title_fullStr New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems
title_full_unstemmed New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems
title_short New Predefined Time Sliding Mode Control Scheme for Multi-Switch Combination–Combination Synchronization of Fractional-Order Hyperchaotic Systems
title_sort new predefined time sliding mode control scheme for multi switch combination combination synchronization of fractional order hyperchaotic systems
topic fractional-order hyperchaotic system
predefined time synchronization
multi-switch combination–combination synchronization
url https://www.mdpi.com/2504-3110/9/3/147
work_keys_str_mv AT hailongzhang newpredefinedtimeslidingmodecontrolschemeformultiswitchcombinationcombinationsynchronizationoffractionalorderhyperchaoticsystems
AT zhaojunxi newpredefinedtimeslidingmodecontrolschemeformultiswitchcombinationcombinationsynchronizationoffractionalorderhyperchaoticsystems