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robust adaptive Multi-Switching Synchronization of Multiple Different Orders Unknown Chaotic Systems

Journal of Systems Science & Complexity 2020年第5期33卷 1330-1359页

作者： MUHAMMAD Shafiq ISRAR Ahmad AMBUSAIDI Mohammed BASHIR Naderi Department of Electrical Engineering Sultan Qaboos UniversityOman Department of General Requirements College of Appled Sciences NizwaOman Department of Mathematics Payame Noor University

Multi-switching synchronizatio of multiple different orders unknown chaotisystems confines hacking in the digital transmission ***,the suppression of undesirable chattering increases synchronization *** paper proposes a new robust synchronization contro technique and discusses the MSS of multiple different orders UC *** controller accomplishe quick convergence reduces the transient oscillations,an the rate of convergence decreases in the vicinity of the origin that causes the suppression of *** based on the Lyapunov direct method assures this convergence behavior with any positive values of the feedback *** work also provides parameters updated law that estimates the true values of unknown *** examples of five UC systems different orders are *** computer based graphical results validate the efficiency and performance of the proposed RASC technique and the synchronization strategy when compare to peer *** the simulation,the proposed synchronization strategy successfully recovers an encrypted received image on a communication *** article suggests some future research problems to extend the use of the proposed work.

关键词： Chaos synchronization Lyapunov stability theory robust adaptive controller unknown chaotic systems

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A family of robust adaptive excitation controllers for synchronous generators with steam valve via Hamiltonian function method

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控制理论与应用（英文版） 2012年第1期10卷 11-18页

作者： Song XU Xiaorong HOU School of Automation Engineering University of Electronic Science and Technology of China Chengdu Sichuan 611731 China Faculty of Science Ningbo University Ningbo Zhejiang 315211 China

Using the Hamiltonian function method, this paper proposes a family of robust adaptive excitation con- trollers for synchronous generators with steam valve control. First, a parameterization method of robust adaptive controllers is investigated for dissipative Hamiltonian systems. This method avoids solving Hamilton-Jacobi-Issacs inequalities. The parameters in the family of controllers thus obtained are determined by a locally positive semidefinite function, which has only 2n independent variables, twice as many as the one used to characterize the state feedback. Then, with the parame- terization method and the structural properties of dissipative Hamiltonian systems, a family of robust adaptive excitation controllers is designed for synchronous generators with steam valve control, disturbances and unknown parameters. Simu- lations illustrate the effectiveness and feasibility of the excitation control strategy proposed in the paper.

关键词： Pararneterization robust adaptive controller Synchronous generator Steam valve control Hamiltonianfunction method

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