This paper addresses the fault estimation (FE) and accommodation issues of interconnected systems by using two new concepts namely interconnected separation principle and constrained interconnected separation principle that allow for the separate design not only between diagnostic observer and fault tolerant controller for each subsystem, but also between observer/controller of each subsystem and those of other ones. Sufficient fault recoverability conditions are established, under which both distributed and decentralized FE and accommodation schemes are provided. The new results help to provide a framework for observer-based fault diagnosis and fault tolerant control of interconnected systems, and are further applied to the meta aircraft configuration that consists of multiple aircraft joined together to illustrate their efficiency.

中文翻译：

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互连系统的故障估计和适应：分离原则


本文通过使用两个新概念，即互连分离原理和约束互连分离原理，解决了互连系统的故障估计（FE）和适应问题，这两个新概念不仅允许每个子系统的诊断观察器和容错控制器之间的单独设计，而且还允许单独设计每个子系统的诊断观察器和容错控制器。每个子系统的观察者/控制器与其他子系统的观察者/控制器之间。建立了充分的故障可恢复性条件，在此条件下提供了分布式和分散式有限元和调节方案。新结果有助于为基于观察者的故障诊断和互连系统的容错控制提供框架，并进一步应用于由多架飞机连接在一起组成的元飞机配置，以说明其效率。