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Document Type

Original Study

Abstract

A multi-layer, multi-input/ multi-output feed-forward back propagation neural network will be used to identify the model of proportional directional control valve with the addition of its nonlinearities. An electro-hydraulic training test bench is used to Vollect data for training the neural network. Using MATLAB, SIMUILNK the electro- hydraulic controlled system is tested, by applying a variable reference stroke position. A PI controller is tuned to get a stroke response with minimum overshoot and minimum steady state error. Modeling results were very satisfied and were very close to the experimental one with an error less than 10-10. This work can be generalized by applying the same idea to any nonlinear valve.

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