CBA2016-0217 Modelagem e Identificação de Sistemas

Discretização de Modelo Afim em Espaço de Estado de Sistemas Lineares com Parâmetros Variantes via LFT

Jorge Andres Puerto Acosta¹; Celso P. Bottura²

¹ FECC UNICAMP; ² FEEC UNICAMP

Resumo

Continuous linear parameter varying systems (LPV) are usually represented using the Linear Fractional Transformation (LFT). Discrete models are required for the discrete treatment of LPV systems. Thus there are needs for obtaining models for discrete LPV systems and for discretization of continuous LPV models. The discretization of this type of systems is not trivial and may require special considerations on the model parameter characteristic variations. In this work we present a procedure for the approximate discretization of continuous LPV systems using the LFT and exploring the characteristics of this discretization procedure via LFT around multiple operation points. The representation of the discretized affine LPV model is obtained from the LTI models at each operation point.

Palavras-chave: Discretization; LPV-LFT; LPV-Affine state space model

Como citar

Jorge Andres Puerto Acosta; Celso P. Bottura. “Discretização de Modelo Afim em Espaço de Estado de Sistemas Lineares com Parâmetros Variantes via LFT”. XXI Congresso Brasileiro de Automática. CBA2016. 2016. Código: CBA2016-0217