High order sliding mode observer for fault actuator estimation and its application to the three tanks benchmark

Overview & Synopsis

This work deals with the design of a FDI scheme on the basis of sliding mode techniques for a 3 three tanks system. More precisely, we focus on the design of high-order sliding mode observer to estimate the magnitude of the actuator faults. The main advantage of the use of high order sliding mode techniques is that it allows to avoid the chattering phenomenon which is inherent to the classical first order sliding mode observers and controllers. The efficiency of the proposed observers is illustrated on a Matlab/Simulink simulator.