On fault detection in coupled liquid three tank system using subspace aided data driven design

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.