文氏桥超混沌电路时滞反馈混沌控制

Controlling chaos in Wien bridge hyperchaotic circuit via time-delay feedback

混沌镇定控制的应用范围很广,所采用的方法很多。本文研究了文氏桥超混沌电路的时滞反馈混沌镇定控制方法,利用模拟时滞反馈控制器将系统状态变量延时后接入原系统,实现了运行状态从超混沌态到单周期态的转变。设计了时滞反馈控制器电路,并进行了平衡点稳定性分析。电路实验结果验证了数值仿真结果,说明了时滞反馈控制器可以有效实现超混沌电路的混沌镇定控制。

Chaos stabilization controls have very wide applications and many methods can be used.An approach of chaos stabilization control in Wien bridge hyperchaotic circuit via time-delay feedback is investigated in this paper.When the system state variable is delayed and then fed back the original system by utilizing an analogue delay feedback controller,the system working state has a transition from hyperchaotic to periodic.The delay feedback controller circuit is designed and the equilibrium point stabilities are performed.The circuit experimental results verify the numerical simulation results,which illustrate that the time-delay feedback controller can realize the chaos stabilization control of the hyperchaotic circuit effectively.