A Lifting Based Approach to Observer Based Fault Detection of Linear Periodic Systems

作者：Zhang Ping^*; Ding Steven X; Liu Ping

来源：IEEE Transactions on Automatic Control, 2012, 57(2): 457-462.

DOI：10.1109/TAC.2011.2166712

• Fault detection (FD)
• lifting
• linear discrete-time periodic systems
• observer
• residual generator

In this note, an approach based on lifting is introduced for the observer based fault detection (FD) of linear discrete-time periodic systems. The main contribution of this note is to give an analytic expression to transform the linear time-invariant (LTI) observer based residual generator designed based on the lifted LTI reformulation of the periodic system into a periodic observer based residual generator to reduce detection delay. The result enables a systematic transfer of the existing observer based FD methods for discrete LTI systems to discrete-time periodic systems.

• 出版日期2012-2