Decentralized state estimation in connected systems *

作     者：Alessandro Pilloni Alessandro Pisano Elio Usai Purushothama Prathyush Menon Christopher Edwards 

作者机构：Dept. of Electrical and Electronic Engineering (DIEE) University of Cagliari Cagliari Italy College of Engineering Mathematics and Physical Sciences University of Exeter United Kingdom Control and Instrumentation Research Group University of Leicester Leicester United Kingdom 

出 版 物：《IFAC Proceedings Volumes》 

年 卷 期：2013年第46卷第2期

页      面：421-426页

主　　题：Observers for linear systems Complex systems Structural properties 

摘      要：This paper considers the problem of state estimation and unknown input reconstruction of a class of connected heterogeneous LTI MIMO systems. Local high order sliding mode observers at each node of the network are designed for this purpose. The proposed method, under some network structural conditions, is inherently robust, nonlinear and totally independent of the time-varying network topology. Knowledge of the number of nodes that belong to the network is not required. At the supervisory level, decentralized control signals are computed based on the state estimates in order to operate the networking synchronization. By mean of simulation, the effectiveness of the proposal procedure is shown.