Control Óptimo- L2 Basado en Red Mediante Funcionales de Lyapunov-Krasovskii

Publicado en 2012;09:14-23. - vol.09 núm 01

Resumen

Resumen

En el presente trabajo se estudia el control óptimo con rechazo de perturbaciones L2 para sistemas lineales controlados a través de red. En estos sistemas el lazo de control se cierra utilizando una red de comunicaciones. Entre los problemas que introduce la red se encuentran posibles retrasos, en general aleatorios, así como pérdidas de paquetes. Desde un enfoque basado en funcionales de Lyapunov- Krasovskii (LKF) se aborda el diseño de controladores óptimos que, dado un nivel deseado de atenuación de perturbaciones, estabilicen el sistema minimizando a su vez un funcional de coste. En el artículo se desarrolla, en primer lugar, una formulación y solución general para el problema. Posteriormente, se resuelve para un funcional de Lyapunov-Krasovskii particular. El comportamiento de los controladores obtenidos se compara con el dado por un control clásico LQR en un escenario de control de distancia en carretera.

Palabras clave Redes de comunicación. Compensación de retrasos. Métodos de Lyapunov. Control óptimo. Retardo temporal.

Introducción

Referencias no citadas

(Azimi-Sadjadi, 2003), (Branicky et al., 1998), (Delfour et al., 1975), (Dormido et al., 2008), (El Ghaoui et al., 1997), (Esfahani et al., 1998), (Gupta et al., 2007), (Hale and Verduyn Lunel, 1993), (Hespanha et al., 2007), (Hokayem and Abdallah, 2004), (Jiang and Han, 2008), (Jiang et al., 2008), (Kharatishvili, 1961), (Kosmidou and Boutalis, 2006), (Krasovskii, 1962), (Mahmoud, 2000), (Meng et al., 2009), (Mikheev et al., 1988), (Naghshtabrizi and Hespanha, 2005), (Nikolakopoulos et al., 2008), (Ross and Flugge-Lotz, 1969), (Salt et al., 2008), (Shao, 2009), (Sinopoli et al., 2005), (Tatikonda and Mitter, 2004), (Xiong and Lam, 2007), (Xu and Lam, 2007), (Xu and Lam, 2008), (Yue et al., 2005), (Zampieri, 2008), (Zhang and Yu, 2008) and (Zhang et al., 2006).

Autor en correspondencia. pmillan@cartuja.us.es

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Millán, Pabloa; Orihuela, Luisa; Vivas, Carlosa; Rubio, Francisco R.a

aDepartamento de Ingeniería de Sistemas y Automática, Universidad de Sevilla, Camino de los Descubrimientos s/n, Isla de la Cartuja, Sevilla, España