主导邻域观测断层重建

P. Menon, C. Edwards
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引用次数: 0

摘要

本文针对齐次线性时不变动力系统网络,设计了半分散滑模观测器,用基于相对信息的图表示。所提出的滑模观测器重构了发生在节点本身和封闭邻域节点集中的执行器故障。提出了两种不同的观察者框架。在第一个框架中,观察者被部署在每个节点上,而在第二个框架中,观察者只被放置在定义主导节点集的节点上。后一种框架的主要优点是,在提供整个网络的完整监测覆盖的同时,最大限度地减少所需的观察员数量。该方法通过涉及10颗卫星网络的编队飞行场景进行了演示。设计半分散超扭转滑模观测器是为了避免在假定只有卫星的相对位置可用于监测时与故障重建有关的问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dominating neighbourhood observers for fault reconstruction
In this paper, semi-decentralized sliding mode observers are designed for a network of homogeneous linear time invariant dynamical systems, represented in terms of a graph based on relative information. The proposed sliding mode observers reconstruct actuator faults occurring at the node itself as well as in the closed neighbourhood node set. Two distinct observer frameworks are proposed. In the first one, observers are deployed at every node, whereas in the second framework, the observers are placed only on nodes which define the dominating node set. Minimizing the number of observers required, while providing complete monitoring coverage across the network, is the key advantage of the latter framework. The methodology is demonstrated using a formation flying scenario involving a network of ten satellites. Semi-decentralized super-twisting sliding mode observers have been designed to circumvent issues associated with fault reconstruction when only the relative positions of the satellites are assumed to be available for monitoring purposes.
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