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arXiv 2109.00641math.OCcs.SYeess.SY
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一种局部横向反馈线性化算法

An Algorithm for Local Transverse Feedback Linearization

Rollen S. D'Souza, Christopher Nielsen

摘要:

给定一个多输入、非线性、时不变的控制仿射系统和一个受控不变的、封闭的、嵌入的子流形$\mathsf{N}$,局部横向反馈线性化(TFL)问题寻求一个坐标和反馈变换,使得在变换后的坐标中,控制系统相对于$\mathsf{N}$的横向演化的动力学是线性的、时不变的和可控的。转换后的系统被称为TFL标准形式。可检查的充要条件,这个问题是可解的,但不幸的是,文献没有提出一个处方,构造所需的多输入系统的转换。在这篇文章中,我们提出了一种算法,产生一个虚拟的输出适当的向量相对程度,使用输入-输出反馈线性化,使系统TFL规范形式。该程序是基于TFL的对偶条件,是从根本上不同于现有的方法,如GS和混合算法,因为“所需的”零动态流形$\mathsf{N}$。该算法是第一个考虑到所需的零动态流形。

英文摘要:

Given a multi-input, nonlinear, time-invariant, control-affine system and a controlled invariant, closed, embedded submanifold $\mathsf{N}$, the local transverse feedback linearization (TFL) problem seeks a coordinate and feedback transformation such that, in transformed coordinates, the dynamics governing the system's transverse evolution with respect to $\mathsf{N}$ are linear, time-invariant and controllable. The transformed system is said to be in the TFL normal form. Checkable necessary and sufficient conditions for this problem to be solvable are known, but, unfortunately, the literature does not present a prescription that constructs the required transformation for multi-input systems. In this article we present an algorithm that produces a virtual output of suitable vector relative degree that, using input-output feedback linearization, puts the system into TFL normal form. The procedure is based on dual conditions for TFL and is fundamentally different from existing methods, such as the GS and Blended algorithms, because of the "desired" zero dynamics manifold $\mathsf{N}$. The proposed algorithm is the first to take into consideration the desired zero dynamics manifold.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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