Publicação: Dynamic Analysis and Synchronization for a System with Hyperchaotic Behavior
Nenhuma Miniatura disponível
Data
2021-10-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Resumo
In this work, dynamical analysis and synchronization control for a four-dimensional Lorenz system are presented. Numerical simulations have shown that for certain parameters, the system has chaotic or recurrent behavior. The chaotic behavior is analyzed by means of phase portraits, bifurcation diagram, fast Fourier transform, and Lyapunov exponents calculation. The synchronization control strategy involves the application of two control signals: a nonlinear feedforward control to maintain the synchronization and a state feedback control to synchronize with the system. Two control strategies are presented for the feedback control project, one considering the State-Dependent Riccati Equation (SDRE) accounting for a nonlinear state matrix and a second one accounting for the Optimal Linear Feedback Control (OLFC), whose state matrix is linear. In addition, the control robustness is investigated through analyzing parametric errors.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Brazilian Journal of Physics, v. 51, n. 5, p. 1333-1345, 2021.
