Dynamic Model of Electro-Hydraulic Pumping Unit Driven by an Asynchronous Motor

The paper presents a model of an electrohydraulic pumping unit driven by a three phase asynchronous motor. The model is presented in its form for reversible variable displacement pump and also in a form for fixed displacement pump. Dynamic simulation and analysis of the model is conducted. The obtained results infer that the model of the electro-hydraulic pumping unit is consistent and reliable.