三种控制Chua氏电路的混沌方法

Analysed Three Methods of Controlling Chua Circuit Chaos

用三种方法来控制Chua氏电路的混沌,并分析了三种方法的特点。首先在系统方程无量纲的前提下,取一定的系统参数和初始状态,通过计算机仿真得到系统的吸引子图和时间响应图。在系统处于混沌态时,分别使用比例微分控制,反馈控制和自适应反馈控制方法对系统的进行控制,结果表明,这三种控制方法都可以有效地将系统的混沌状态控制到稳定的周期轨道。

In this paper,three methods which controlled the chaos of the Chua circuit were studied and analysed the characteristic of these methods.At first,the attractor and time responses through computer simulation were got when the function of system was nondimensional and the system parameters and initial condition were definite.The proportional and differential controller,feedback control and adaptive feedfack control were used to control the system chaos.The result indicated that the chaotic motions of the system can be successfully converted to the stable periodic orbits after the three methods were used to control chaos.