Fault tolerant control using virtual actuators and invariant-set based fault detection and identification
Fault tolerant control using virtual actuators and invariant-set based fault detection and identification
复制标题
使用虚拟执行器和基于不变集的故障检测和识别的容错控制
DOI：
--
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Doná
中科院分区：
文献类型：
--
作者：
M. Seron;J. Doná
在本文中，我们将作者最近提出的用于故障检测和识别（FDI）的不变量集方法与Steffen， Lunze等人提出的用于控制器重构的虚拟执行器方法相结合。FDI方法基于将表征健康系统运行的不变量集与表征故障运行的不变量集分离。这些集合的推导考虑了在所有考虑的故障情况下通过虚拟执行器重新配置的闭环系统。我们提供了闭环系统参数和外部信号界的解析条件，保证了上述集合分离，从而保证了方案在所有考虑的故障情况下的闭环稳定性。
In this paper we combine an invariant-set approach to fault detection and identification (FDI), recently proposed by the authors, with the virtual actuator approach to controller reconfiguration of Steffen, Lunze and co-authors. The FDI approach is based on the separation of invariant sets that characterise healthy system operation from invariant sets that characterise faulty operation. The derivation of these sets takes into account the closed-loop system reconfigured by means of the virtual actuator under all considered fault situations. We provide analytic conditions, in terms of closed-loop system parameters and bounds on external signals, which guarantee the aforementioned set separation and, thus, closed-loop stability of the scheme under all considered fault situations.