Automatica, Vol.49, No.1, 101-110, 2013
Gain-scheduled control of two-dimensional discrete-time linear parameter-varying systems in the Roesser model
This paper is concerned with gain-scheduled control of two-dimensional discrete-time linear parameter-varying systems described, by a Roesser state-space model with matrices depending affinely on time-varying scheduling parameters. The parameter admissible values and variations are assumed to belong to given intervals. Linear matrix inequality based methods are devised for designing static state feedback gain-scheduled controllers with either an H-infinity or quadratic regulator-type performance. The control designs build on quadratically parameter-dependent Lyapunov functions and allow for incorporating information on available bounds on the parameters variation. The proposed controller gain can be independent, affine, quadratic, or a matrix fraction of quadratic polynomial matrices in the scheduling parameters. (C) 2012 Elsevier Ltd. All rights reserved.