Title :
Parametric output feedback control with left eigenstructure insensitivity
Author_Institution :
Control Eng. Centre, Brunel Univ., Uxbridge, UK
Abstract :
A recent parameterization of the class of linear output feedback controllers that assign a set of desired self-conjugate eigenvalues to the closed-loop system is used to formulate and solve a fundamental response insensitivity problem. It is established to what extent output feedback control can be used to render the closed-loop system left eigenstructure insensitive to possibly many, not necessarily small, parameter variations in the open-loop state-space model. A nonconservative sequential design procedure is developed for making as many of the closed-loop system left eigenmodes as possible totally insensitive while retaining arbitrary assignment of the maximum number of closed-loop eigenvalues. The main result is a class of left eigenstructure desensitizing fixed gain output feedback controllers explicitly specified by a set of free parameters that can be chosen to satisfy additional design requirements.<>
Keywords :
closed loop systems; control system synthesis; controllers; eigenvalues and eigenfunctions; feedback; parameter estimation; state-space methods; closed-loop system; left eigenstructure insensitivity; linear output feedback controllers; nonconservative sequential design procedure; open-loop state-space model; parametric output feedback control; Closed loop systems; Eigenvalues and eigenfunctions; Feedback; Parameter estimation; State space methods;
Conference_Titel :
Systems Engineering, 1989., IEEE International Conference on
Conference_Location :
Fairborn, OH, USA
DOI :
10.1109/ICSYSE.1989.48708