Title :
The fault diagnosis problem: A comparative study based on dedicated observers and unknown inputs observers
Author :
Cortes Vega, David ; Anzurez Marin, Juan ; Ramirez Zavala, Salvador
Author_Institution :
Div. de Estudios de Posgrado, Univ. Michoacana de San Nicolas de Hidalgo, Morelia, Mexico
Abstract :
Two methods based on state observers applied to fault diagnosis are presented in this paper. These methods are based on analysis of error signals known as residuals, which are generated from the comparison between the actual system output and the estimated output. A comparative study about these two methods applied to a hydraulic liquid level system is presented in simulation.
Keywords :
fault diagnosis; level control; observers; dedicated observers; error signal analysis; estimated output; fault diagnosis problem; hydraulic liquid level system; residual analysis; state observers; system output; unknown input observers; Fault diagnosis; Observers; Robustness; Sensor systems; Suspensions; Vectors; Dedicated Observers Scheme (DOS); Fault Diagnosis; Observability; Residuals; Stability; Unknown Input Observers (UIO);
Conference_Titel :
Power, Electronics and Computing (ROPEC), 2014 IEEE International Autumn Meeting on
Conference_Location :
Ixtapa
DOI :
10.1109/ROPEC.2014.7036304
