A new suboptimal control design for cascaded non-linear systems

    Authors

    Z. H. Qu;J. R. Cloutier

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Optim. Control Appl. Methods

    Keywords

    cascaded system; optimality, recursive design; Riccati equation; suboptimal control; tracking control; Automation & Control Systems; Operations Research & Management Science; Mathematics, Applied

    Abstract

    A new suboptimal control design technique is proposed for a class of cascaded non-linear systems. The design is based on a forward recursive design rather than a backstepping design, and it utilizes a non-linear tracker derived using the state-dependent algebraic Riccati equation approach. The proposed design has two distinct features, First, it provides suboptimal performance with respect to a performance index that is defined in terms of the original state and control variables and thus can be prescribed. Second, the forward recursive procedure eliminates differentiation of fictitious controls (or their functions), which makes the design much simpler in applications. Due to the use of the non-linear tracker, the proposed design has the potential of producing less conservative results than non-linear servo results. Copyright (C) 2002 John Wiley Sons, Ltd.

    Journal Title

    Optimal Control Applications & Methods

    Volume

    23

    Issue/Number

    6

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    303

    Last Page

    328

    WOS Identifier

    WOS:000180081500001

    ISSN

    0143-2087

    Share

    COinS