奇异时滞系统的鲁棒故障检测和分离观测器

讨论了一类不确定奇异时滞系统的鲁棒故障检测和分离观测器(RDO)设计问题,设计所有的观测器使得它们的冗余信号对非故障因素具有鲁棒性,并设计每个观测器使其冗余信号对一组特定的故障不敏感而对其余故障敏感。给出了RDO存在的充分条件及有效的设计算法,并讨论了故障集合不同划分的RDO设计之间的关系,最后给出一具体算例来说明该方法的有效性。

Robust fault detection and isolation observers for singular time-delay systems

The design of robust fault detection and isolation observer(RDO) for a class of uncertain singular time-delay systems is considered.All the observers are designed such that their residual signals are robust to the non-fault factors and each observer is further specially designed such that its residual signal is invariant to a particular group of faults while sensitive to the rest.A sufficient condition for the existence of RDO and an efficient design algorithm are obtained.Additionally,the design of RDOs associated with various splitting of the faults is also discussed.Finally,the applicability of the proposed method is illustrated through a detailed example.