期刊
ENTROPY
卷 22, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/e22030271
关键词
four-dimensional chaotic systems; dynamical analysis; disturbance-observer; adaptive terminal sliding mode control; control input saturation; extended Kalman filter
资金
- Hunan Double First-Class Discipline Key Scientific Research Foundation [18A386]
- Natural Science Foundation of China [61901530, 11747150]
- China Postdoctoral Science Foundation [2019M652791]
- Postdoctoral Innovative Talents Support Program [BX20180386]
- CONACYT/Mexico, Proyecto Apoyado por el Fondo Sectorial de Investigacion para la Educacion [258880]
In this paper, dynamical behavior and synchronization of a non-equilibrium four-dimensional chaotic system are studied. The system only includes one constant term and has hidden attractors. Some dynamical features of the governing system, such as invariance and symmetry, the existence of attractors and dissipativity, chaotic flow with a plane of equilibria, and offset boosting of the chaotic attractor, are stated and discussed and a new disturbance-observer-based adaptive terminal sliding mode control (ATSMC) method with input saturation is proposed for the control and synchronization of the chaotic system. To deal with unexpected noises, an extended Kalman filter (EKF) is implemented along with the designed controller. Through the concept of Lyapunov stability, the proposed control technique guarantees the finite time convergence of the uncertain system in the presence of disturbances and control input limits. Furthermore, to decrease the chattering phenomena, a genetic algorithm is used to optimize the controller parameters. Finally, numerical simulations are presented to demonstrate the performance of the designed control scheme in the presence of noise, disturbances, and control input saturation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据