Title :
An FD approach for multirate sampled-data systems in the frequency domain
Author :
Zhang, P. ; Ding, S.X. ; Wang, G.Z. ; Zhou, D.H.
Author_Institution :
Inst. for Autom. Control & Complex Syst., Duisburg-Essen Univ., Duisburg, Germany
Abstract :
This paper studies fault detection (FD) problems in multirate sampled-data (MSD) systems in the frequency domain. Operators are introduced from the viewpoint of FD to analyze the frequency domain dynamics of residual generator. Based on it, a direct approach is proposed to design the H2-optimal discrete-time FD systems for MSD systems, which takes into account the influence of multirate sampling. Finally, the full decoupling problem is discussed.
Keywords :
discrete time systems; fault location; frequency-domain analysis; sampled data systems; H2-optimal; decoupling problem; discrete-time FD systems; fault detection problem; frequency domain; multirate sampled-data systems; multirate sampling; residual generator; Automatic frequency control; Automation; Control systems; Digital control; Fault detection; Frequency conversion; Frequency domain analysis; Isolation technology; Process control; Sampling methods;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1243764
