TY - JOUR T1 - Fault Diagnosis of Technical Processes Based on the Multi-Model Approach AU - , Messaoud Ramdani AU - , Noureddine Doghmane JO - Asian Journal of Information Technology VL - 5 IS - 10 SP - 1166 EP - 1171 PY - 2006 DA - 2001/08/19 SN - 1682-3915 DO - ajit.2006.1166.1171 UR - https://makhillpublications.co/view-article.php?doi=ajit.2006.1166.1171 KW - Parity equations KW -nonlinear dynamic processes KW -multi-modelling KW -fuzzy approximate reasoning AB - The supervision of many technical systems is often a challenging task due mainly to various nonlinearities. In this study, a multi-model approach for fault detection and diagnosis is proposed as an effective way since it allows to derive good process models valid over a wide range of operation and subsequently to detect changes of the current process behaviour. The diagnosis task is accomplished by decomposing the complex process into several sub-processes in order to generate a set of structured residuals. The validity of the approach is illustrated on the well known academic three tanks benchmark and different faults can be detected and isolated continuously, over several operating regimes. ER -