Predictive model of the trunk oil pipeline technological section on the basis of results of transient conditions test

Abstract

The paper deals with the problem of predicting the hydraulic parameters of the trunk oil pipeline (TOP) in transient operating practice. The requirements and assumptions for the model of the trunk oil pipeline are discussed. The basic differential equations describing hydraulic processes in the linear part of the TOP and pumping units are given. The paper analyzes the features of building models of trunk oil pipelines using the Matlab / SimHydraulics tool. As a result, a method for modifying standard Matlab / SimHydraulics tools for building TOP models was proposed. The TOP model “Omsk - Anzhero-Sudzhensk” was built using the modified features of the Matlab / SimHydraulics tool. A model quality criterion is proposed. Comparison of the results obtained in the TOP modeling with measurement data revealed the need to further adjust the model. Using optimization algorithms embedded in the Matlab package, the unknown parameters of the trunk oil pipeline model were adjusted according to the test of transient operating practice using the selected quality criterion.