Control Scheme for a Fractional-Order Chaotic Genesio-Tesi Model. (29th September 2019)

• Record Type: Journal Article
• Authors: Xu, Changjin; Li, Peiluan; Liao, Maoxin; Liu, Zixin; Xiao, Qimei; Yuan, Shuai
• Other Names: Hens Chittaranjan Academic Editor.
• Is Part Of: Complexity. Volume 2019(2019)
• Publication Date: 2019-09-29
• Subjects: Chaotic behavior in systems -- Periodicals; Complexity (Philosophy) -- Periodicals; 003
• DOI: 10.1155/2019/4678394
• Languages: English
• ISSNs: 1076-2787

Abstract

Abstract : In this paper, based on the earlier research, a new fractional-order chaotic Genesio-Tesi model is established. The chaotic phenomenon of the fractional-order chaotic Genesio-Tesi model is controlled by designing two suitable time-delayed feedback controllers. With the aid of Laplace transform, we obtain the characteristic equation of the controlled chaotic Genesio-Tesi model. Then by regarding the time delay as the bifurcation parameter and analyzing the characteristic equation, some new sufficient criteria to guarantee the stability and the existence of Hopf bifurcation for the controlled fractional-order chaotic Genesio-Tesi model are derived. The research shows that when time delay remains in some interval, the equilibrium point of the controlled chaotic Genesio-Tesi model is stable and a Hopf bifurcation will happen when the time delay crosses a critical value. The effect of the time delay on the stability and the existence of Hopf bifurcation for the controlled fractional-order chaotic Genesio-Tesi model is shown. At last, computer simulations check the rationalization of the obtained theoretical prediction. The derived key results in this paper play an important role in controlling the chaotic behavior of many other differential chaotic systems.