منابع مشابه
Funnel Control for Systems with Relative Degree Two
Tracking of reference signals yref(·) by the output y(·) of linear (as well as a considerably large class of nonlinear) single-input, single-output system is considered. The system is assumed to have strict relative degree two with (“weak”) stable zero dynamics. The control objective is tracking of the error e = y− yref and its derivative ė within two prespecified performance funnels, resp. Thi...
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Tracking—by the system output—of a reference signal (assumed bounded with essentially bounded derivative) is considered in the context of a class of nonlinear, single-input, single-output systems modelled by functional differential equations and subject to input saturation. Prespecified is a parameterized performance funnel within which the tracking error is required to evolve; transient and as...
متن کاملFunnel control for nonlinear systems with known strict relative degree
We consider tracking control for nonlinear multi-input, multi-output systems which have arbitrary strict relative degree and stable internal dynamics. For a given sufficiently smooth reference signal, our aim is to design a controller which achieves that the tracking error evolves within a prespecified performance funnel. To this end, we introduce a new controller which involves the first r− 1 ...
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In this paper, we demonstrate continuous-time adaptive control for nonlinear system of two funnel tanks in series. For this purpose continuous-time input-output linear model is considered describing nonlinear system in the neighborhood of an operating point. The two approaches discussed here are direct estimation and alternate delta model. In the case of direct approach the key lies in the diff...
متن کاملZero dynamics and funnel control of linear differential-algebraic systems
We study the class of linear differential-algebraic m-input m-output systems which have a transfer function with proper inverse. A sufficient condition for the transfer function to have proper inverse it that the system has ‘strict and non-positive relative degree’. We present two main results: First, a so called ‘zero dynamics form’ is derived: this form is – within the class of system equival...
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ژورنال
عنوان ژورنال: IEEE Transactions on Automatic Control
سال: 2009
ISSN: 0018-9286,1558-2523
DOI: 10.1109/tac.2009.2013013