An Integrated Approach for On-Line Fault Detection to Hydraulic Driven Systems

C. Angeli and A. Chatzinikolaou (Greece)


Modelling, Simulation, Hydraulic systems, Fault detection, Fault Compensation


The diagnostic system considered in this paper relies on the inconsistency between the actual process behaviour and its expected behaviour as described by an analytical model. Simulation results and data acquired from an actual system are compared on-line in a suitable environment and the residuals are evaluated for the fault detection process. In the case of incipient faults that can be compensated for a period of time an on-line procedure is executed that makes possible to maintain the normal operation of the motor and to avoid reduction of the efficiency or shutdown of the system in order to offer an integrated diagnostic approach for these systems.

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