An Experimental Parameter Estimation Approach for the Simulation of Hydraulic Drive Systems

C. Angeli and A. Chatzinikolaou (Greece)


Modelling, simulation, fault diagnosis, hydraulic systems, and on line process


This paper describes an approach to estimate parameter values in a model for a hydraulic drive system so that the final model can represent efficiently the system’s dynamics. Due to the complicated equations describing the dynamic behaviour of these systems, some parameters can be roughly estimated through the usual tests based on the steady-state analysis and alternative approaches are needed for more accurate parameter values. The approach presented in this paper uses the capabilities of the DASYLab software for on-line dynamic estimation of parameter values so that the produced model can be used for online fault diagnosis based on the deviation between the performance of model and actual process.

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