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Computing output feedback controllers to enlarge the domain of attraction in polynomial systems

机译:计算输出反馈控制器以扩大多项式系统中的吸引域

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摘要

The problem of computing controllers to enlarge the domain of attraction (DA) of equilibrium points of polynomial systems is considered. In order to deal with such a problem, a technique for computing static nonlinear output feedback controllers, which maximize the largest estimate of the DA (LEDA) induced by a given polynomial Lyapunov function, is proposed. The main contribution of the note is to show that a lower bound of the maximum achievable LEDA and a corresponding controller can be obtained through linear matrix inequality optimizations. Moreover, a necessary condition for tightness of this lower bound is presented, which is also a sufficient condition to establish the tightness of the lower bound of the LEDA for a given controller.
机译:考虑了计算控制器扩大多项式系统平衡点的吸引域(DA)的问题。为了解决这个问题,提出了一种用于计算静态非线性输出反馈控制器的技术,该技术最大化由给定的多项式Lyapunov函数引起的DA(LEDA)的最大估计。该注释的主要作用是表明可以通过线性矩阵不等式优化来获得最大可实现LEDA和相应控制器的下限。此外,提出了用于该下限的紧密度的必要条件,这也是为给定控制器建立LEDA的下限的紧密度的充分条件。

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