IMPROVING TRANSIENT PERFORMANCE FOR TRACKING CONTROL OF MULTIVARIABLE SINGULAR LINEAR SYSTEMS WITH INPUT SATURATION

Dongyun Lin, Weiyao Lan, and Maoqing Li

Keywords

Singular systems, input saturation, transient performance, compositenonlinear feedback

Abstract

This paper addresses the composite nonlinear feedback (CNF) controller design for impulsive free tracking control problem of multivariable singular linear systems with input saturation. Based on a linear state feedback control law, a CNF controller is designed by introducing a nonlinear feedback law. The freedom of the nonlinear feedback law can be used to improve the transient performance of the closed-loop system. Moreover, an output feedback CNF control law is constructed based on the state feedback CNF control law and a state observer. The design procedure and the transient performance improvement of the proposed CNF control law are illustrated with an example.

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