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Adaptive Non-singular SOTSM Controller Design for Cyber-Physical Systems with Parametric Uncertainties, Unwanted Disturbances and Actuator Cyber-Attacks
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Abbas Nemati *   |
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Abstract: (2394 Views) |
This paper presents a new method of the adaptive non-singular Second-order Terminal Sliding Mode (SOTSM) control for the fast and finite time stabilization of Cyber-Physical Systems (CPSs) in the simultaneous presence of parametric uncertainties, unwanted disturbances and actuator cyber-attacks. By utilizing the presented non-linear manifold and sliding surface, the reaching mode is deleted and the entire system’s robust performance is improved. The proposed online adaptive laws deal with parametric uncertainties, unwanted disturbances and cyber-attacks, so that there is no need to identify their upper bounds. The designed adaptive non-singular SOTSM control method guarantees the robust performance of the system in the mentioned conditions along with fast and smooth response, high accuracy and flexibility, without transient fluctuations and chattering, as well as proper convergence in finite time. The numerical simulation results show the effectiveness and success of the adaptive non-singular second-order terminal sliding mode control method in comparison with the results of adaptive integral sliding mode control, traditional sliding mode control and state feedback control.
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Article number: 1 |
| Keywords: Cyber-physical system, SOTSM, adaptive control, parametric uncertainty, cyber-attack, finite-time stability |
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Full-Text [PDF 10470 kb]
(335 Downloads)
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Type of Study: Research |
Subject:
Nonlinear Control
Received: 2023/07/31 | Accepted: 2023/10/9 | Published: 2024/09/17
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