New PDF release: Uniform Output Regulation of Nonlinear Systems: A Convergent

By Alexey Victorovich Pavlov, Nathan van de Wouw, Henk Nijmeijer

This research of the nonlinear output law challenge embraces neighborhood in addition to international situations, overlaying such facets as controller layout and useful implementation concerns.

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"The authors deal with the matter of output legislation for a nonlinear regulate system...[they] increase an international method of output law alongside regular lines....I came upon the ebook to be bold and rigorous, tackling a few challenging conceptual issues." --IEEE TRANSACTIONS ON computerized regulate

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Download e-book for iPad: Uniform Output Regulation of Nonlinear Systems: A Convergent by Alexey Victorovich Pavlov, Nathan van de Wouw, Henk

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Additional info for Uniform Output Regulation of Nonlinear Systems: A Convergent Dynamics Approach (Systems & Control: Foundations & Applications)

Sample text

15) y = Cm x + Hm w, where x is the state, u is the control, e and y are the regulated and measured outputs respectively, and w is the external signal generated by the exosystem 38 3 The uniform output regulation problem w˙ = Sw, which is a linear harmonic oscillator. , the matrix F is Hurwitz; b) Asymptotic output zeroing: for all solutions of the closed-loop system and the exosystem it holds that e(t) = Cr x(t) + Hr w(t) → 0 as t → +∞. Notice that the closed-loop system is linear with a Hurwitz matrix F .

3 Types of controllers Depending on the information available for feedback, one can distinguish different types of controllers. 7) is called a state feedback. 7) is called an output feedback. 7). In this case, ξ = ∅ and the controller is called static. Otherwise, it is called dynamic. 4 Robust output regulation In practice certain parameters of the system and the exosystem may not be known exactly. 12) w˙ = s(w). 7) solves the (global, local) uniform output regulation problem for the nominal values of parameters p◦ .

2) also depends on z. 2). 2). 5) for all w ∈ W. 2). 2) and for all solutions z(t), w(t) starting close enough to the origin (0, 0) it holds that z(t) − α(w(t)) → 0 as t → +∞. 2) reduce, after transients, to the dynamics on the center manifold M(W). Hence, the properties of this center manifold determine whether the regulated output e(t) tends to zero along solutions of the closed-loop system or not. 7) for all w in some neighborhood of the origin W ⊂ Rm . 7). If we denote (π(w), σ(w)) := α(w), where π(w) and σ(w) are the components of the mapping α(w) corresponding to the x- and ξ-coordinates of the closed-loop system, respectively, this statement can be summarized in the following theorem.

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