MULTI-OBJECTIVE OPTIMIZATION OF STEADY OPERATING MODES OF ELECTRIC OIL PUMPING STATION
Journal Title: Вісник Кременчуцького національного університету імені Михайла Остроградського - Year 2018, Vol 1, Issue 108
Abstract
Purpose. To research multi-objective optimization of steady operating modes of electric oil pumping station basing on system approach by criteria of efficiency and reliability of electric and hydraulic subsystems. Methodology. According to the criteria of efficiency and reliability were synthesized target function of the multi-objective task of optimization of operating modes of a complex control object such as oil pumping station (OPS) depending on the flow rate of working fluid of its pumping units (PU). It gave the opportunity to research operating modes of electric PU in underload conditions. Results. By using system approach, global target function of multi-objective task of optimal control in steady operating modes of PU of OPS has been formalized. Basing on expert polls weight coefficients of significance of target functions and their impact on optimality of low-duty operating modes of electric PU have been determined. It was found that polioptimal values of flow rate in underload operating modes differ from nominal flow rate of centrifugal pump. Originality. For the first time on the basis of system approach global target function of multi-objective optimization of operating modes of PU of OPS was synthesized by the criteria of efficiency and reliability of electric motor and centrifugal pump. Visualization of the scalarization process of the problem of vector optimization of operating modes of PU is accomplished by considering the angles of "inconsistency" of spatial vector of target conditions. The polyoptimal value of flow rate duty of electric PU and corresponding additive target function have been determined by criteria of efficiency and reliability of the electric and hydraulic subsystems of PU. Practical value. Multi-objective optimization of operating modes of electric OPS gives opportunity to determine the polyoptimal operating mode of PU of OPS by criteria of efficiency and reliability of work without conducting expensive field experiments.
Authors and Affiliations
I. Yaremak, V. Kostyshyn
Keywords
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- DOI 10.30929/1995-0519.2018.1.15-21
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