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输入非仿射不确定性混沌系统的输出跟踪控制

Keywords: 非仿射输入,不确定性,输出跟踪,跟踪微分器,扩展状态观测器

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Abstract:

针对一类输入非仿射不确定性混沌系统,采用反演设计了一种新的控制器.该方法结合非线性跟踪微分器以及扩展状态观测器,非线性跟踪微分器用于逼近虚拟控制量的导数或者参考信号的导数;扩展状态观测器用于估计系统中的未知项及扰动项,并且证明了其收敛性能.该方法的运算时间远远小于现有设计方法,并且跟踪误差是渐近一致稳定的;该方法保证了此类系统的输出能跟踪任意可微的参考信号.对具有非仿射输入及扰动和不确定性的混沌系统的仿真结果表明了该方法的可行性和有效性.

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