Adaptive backstepping fuzzy synchronization control of fractional-order chaotic systems with input saturation and external disturbances
Source abstract
Abstract
In this paper, an adaptive backstepping command filtered controller is proposed for a class of uncertain strict feedback fractional-order chaotic systems with input saturation and external disturbances. A command filter is designed to avoid the “explosion of complexity” problem in the conventional backstepping technique. To tackle with filter error and improve synchronization accuracy, a compensation mechanism is provided. Meanwhile, fuzzy logic systems are utilized to approximate unknown functions, and disturbance observers are constructed to reduce the impact of unknown disturbances. In particular, to reduce the chattering phenomenon, a smooth function rather than the sign function is used in the controller design, and the stability of the closed-loop system can be guaranteed by the proposed synchronization controller. A simulation study is provided to confirm the practicality and validity of the proposed method.
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Research context
OpenAlex topics: Chaos control and synchronization · Neural Networks and Applications · Chaos-based Image/Signal Encryption
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mathematics and Physics, Guangxi Minzu University , Nanning 530006, China
Funding
Xiangsihu Young Scholars Innovative Research Team of Guangxi Minzu University
References (56)
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