Resumen de Modelling, simulation and control of hydraulic systems for educational purposes
A different modellingapproachfor modelling of hydraulicsystems is presentedin this paper.The modelling approachdealswithhowto obtainadequate mathematicalmodels ofthe most commonhydraulic elements,whichare often used in processindustries. Partial models should be suitable for behaviour simulation of the complete hydraulic system, for simulation ofhydraulic process control applications, for supervision of hydraulic processes, and for educational purposes. All partialmodels, model of the pump, model of the pipeline, model of the tank, and model of the control valve, are connectedlogically and properly connected in a MATLAB/Simulink environment and form the mathematical model of the desiredhydraulic system. The difference between the classical and presented approach is explained where non-linear and linearizedmodels of all hydraulic elements tanks are derived. Two hydraulic processes are simulated and results show the potential ofthe presented modelling approach. The proposed hydraulic modelling approach was used in Bachelor and Master StudyProgrammes in the scope of students’ individual work as seminar or project work. The model and real processmeasurements gave students a proper insight of modelling problems, design and selection issues of equipment andexamples of good engineering practice. Positive students’ feedback was towards understanding the underlying physics ofthe developed theoretic models in connection to real process behaviour and measurements, which is mostly missing whendealing with classic modelling and simulation courses.
