Title :
On fault detection in coupled liquid three tank system using subspace aided data driven design
Author :
Hussain, A. ; Khan, A.Q. ; Abid, M. ; Tufail, M.
Author_Institution :
Dept. of Electr. Eng., Pakistan Inst. of Eng. & Appl. Sci., Islamabad, Pakistan
Abstract :
The paper deals with parity based data driven design of the fault detection (FD) systems. The main idea is to extract the process model from test data using subspace system identification (SIM) methods. The identified system model is thenused to develop parity relation for detecting actuator and sensor faults. The application of the technique is shown by simulation study of coupled liquid three tank system.
Keywords :
actuators; fault diagnosis; matrix algebra; multivariable systems; observability; sensors; state-space methods; SIM method; actuator fault detection; coupled liquid three tank system; fault detection system; observability matrix; parity relation; parity space based residual generation; process model; sensor fault detection; state space representation; subspace aided data driven design; subspace system identification method; Actuators; Fault detection; Fault diagnosis; Liquids; Mathematical model; Noise; Vectors; fault detection; parity based residual generation; subspace system identification; system identification;
Conference_Titel :
Emerging Technologies (ICET), 2012 International Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-1-4673-4452-4
DOI :
10.1109/ICET.2012.6375467
