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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.
Highlights
Continuous development of pipeline transport technologies, increasing requirements for energy efficiency and safety of operating the trunk oil pipeline cause an increase in the arsenal of tools and procedures for forecasting and management
The paper deals with the problem of predicting the hydraulic parameters of the trunk oil pipeline (TOP) in transient operating practice
The paper analyzes the features of building models of trunk oil pipelines using the Matlab / SimHydraulics tool
Summary
Continuous development of pipeline transport technologies, increasing requirements for energy efficiency and safety of operating the trunk oil pipeline cause an increase in the arsenal of tools and procedures for forecasting and management. Nowadays the creation of systems for monitoring and managing the processes in an oil pipeline is impossible without involving the apparatus of mathematical modelling of the control object, which takes into account its key features: distributed nature, uncertainty of parameters, etc. Mathematical models of the processes occurring in the trunk oil pipeline (TOP) are needed to calculate the optimal modes and parameters of operation of process equipment, to develop protection systems and implement effective management of technological processes. Models make it possible to decrease the number of experiments on a working pipeline, which are often impossible to carry out due to their danger and high cost.
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