6 research outputs found

    Methodology for calculating technical efficiency of power sections in small-sized screw downhole motors for the Β«PerfoburΒ» system

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    With an increase in the share of old and low-yield wells and for the efficient exploitation of fields, it is necessary to include low-capacity formations into production. There are many wells where sidetracking and hydraulic fracturing are difficult due to the close proximity of the gas cap and underlying water caused by geological and technological reasons, and the use of existing secondary drilling-in technologies is not effective due to the extensive colmatated zone or annular circulation. Relevance of radial drilling technologies is growing, which allows drilling-in of the formation with a network of extended channels to establish high-quality hydraulic communication between the formation and the well without affecting the permeability of the formation. In contrast to radial drilling technologies using hydraulic washing, technical system (TS) Β«PerfoburΒ» uses small-sized screw downhole motors (SDM) and rock cutting tools for channel construction. For efficient milling of production casing and destruction of rock, the hydraulic downhole motor must have high torque, and for the possibility of drilling with a high rate of angle gain, it must have short power section. Existing Russian and foreign SDM have limited number of standard sizes and do not meet the requirements specified for the development of the downhole module of TS Β«PerfoburΒ». The paper discusses the development of universal small-sized sectional screw downhole motors for milling casing strings and drilling a network of branched channels of super-small diameter and radius of curvature as a part of the TS Β«PerfoburΒ». Methodology proposed in the article for selecting optimal configuration of the SDM power sections allows constructing small-sized sectional downhole motor that meets the technical requirements and has improved characteristics compared to standard SDM

    Application of heuristic algorithms in analyzing data to solve the problem of detection of electric centrifugal pumping units

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    Ensuring effective control and preventing failures of electrical submersible pumps, because of their wide distribution is the relevant and demanded task. The use of automated control systems of electric centrifugal pumping units allows improving the quality and speed of decisions made about their technical condition. All methods of diagnosing the installation of electrical submersible pumps are aimed at monitoring the state of the composite nodes, and are reduced to the analysis of time series, which are the time scans of the operation parameters. Traditionally applied linear methods of time series research in the last decades have been substantially expanded by nonlinear methods, among which heuristic algorithms were developed significantly. The main aim is to increase the efficiency of determining the technical state of installations of electric centrifugal pumps during operation. Methods. The approach proposed in this paper is based on solving the diagnostic problem by decomposition into the following subtasks: automatic segmentation, formalization and interpretation of the data obtained. Segmentation is considered as a clustering problem, the purpose of which is the establishment of autocorrelation links between the values of the time series with the formation of temporal clusters and adaptive approximation within the established areas while preserving the local features of the signals. For each allocated class of deviations in operation of electric centrifugal pumping units, the decisive rules are formed based on expert knowledge. The main differences from the classical approach to the problem of diagnosis are: the lack of the need for expert participation in solving the clustering problem; providing adaptive approximation within the allocated time intervals; the possibility of implementing interpretable approaches to fault recognition.Β Results. The authors have proposed the approach based on solving the diagnostic problem by its decomposition into the following subtasks: automatic segmentation, formalization and interpretation of the data obtained. The necessary list of controlled parameters of operation of the electric centrifugal pumping units is determined. The list allows technical diagnosis

    Application of heuristic algorithms in analyzing data to solve the problem of detection of electric centrifugal pumping units

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    ΠžΠ±Π΅ΡΠΏΠ΅Ρ‡Π΅Π½ΠΈΠ΅ эффСктивного контроля ΠΈ ΠΏΡ€Π΅Π΄ΠΎΡ‚Π²Ρ€Π°Ρ‰Π΅Π½ΠΈΠ΅ ΠΎΡ‚ΠΊΠ°Π·ΠΎΠ² элСктроцСнтробСТных насосных установок Π²Π²ΠΈΠ΄Ρƒ ΠΈΡ… ΡˆΠΈΡ€ΠΎΠΊΠΎΠ³ΠΎ распространСния являСтся Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΈ вострСбованной Π·Π°Π΄Π°Ρ‡Π΅ΠΉ. ΠŸΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ систСм Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ контроля элСктроцСнтробСТных насосных установок позволяСт ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ качСство ΠΈ ΡΠΊΠΎΡ€ΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Π΅ΠΌΡ‹Ρ… Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ ΠΎ ΠΈΡ… тСхничСском состоянии. ВсС ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ диагностирования установок элСктроцСнтробСТных насосов Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Ρ‹ Π½Π° ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒ состояния составных ΡƒΠ·Π»ΠΎΠ² ΠΈ сводятся ΠΊ Π°Π½Π°Π»ΠΈΠ·Ρƒ Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Ρ… рядов, ΡΠ²Π»ΡΡŽΡ‰ΠΈΡ…ΡΡ Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹ΠΌΠΈ Ρ€Π°Π·Π²Ρ‘Ρ€Ρ‚ΠΊΠ°ΠΌΠΈ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² эксплуатации. Π’Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½ΠΎ примСняСмыС Π»ΠΈΠ½Π΅ΠΉΠ½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ исслСдования Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Ρ… рядов Π² послСдниС дСсятилСтия Π±Ρ‹Π»ΠΈ сущСствСнно Ρ€Π°ΡΡˆΠΈΡ€Π΅Π½Ρ‹ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½Ρ‹ΠΌΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ, срСди ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ»ΠΈ эвристичСскиС Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΡ‹. ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹: ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ эффСктивности опрСдСлСния тСхничСского состояния установок элСктроцСнтробСТных насосов Π² процСссС эксплуатации. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹ исслСдования. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΉ Π² Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ основываСтся Π½Π° Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΈ Π·Π°Π΄Π°Ρ‡ΠΈ диагностирования ΠΏΡƒΡ‚Ρ‘ΠΌ Π΄Π΅ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ†ΠΈΠΈ Π½Π° ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ ΠΏΠΎΠ΄Π·Π°Π΄Π°Ρ‡ΠΈ: автоматичСская сСгмСнтация, формализация ΠΈ интСрпрСтация ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ…. БСгмСнтация рассмотрСна ΠΊΠ°ΠΊ Π·Π°Π΄Π°Ρ‡Π° кластСризации, Ρ†Π΅Π»ΡŒ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΉ - установлСниС автокоррСляционных связСй ΠΌΠ΅ΠΆΠ΄Ρƒ значСниями Π²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ ряда с Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Ρ‚Π΅ΠΌΠΏΠΎΡ€Π°Π»ΡŒΠ½Ρ‹Ρ… кластСров ΠΈ Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎΠΉ аппроксимации Π² Ρ€Π°ΠΌΠΊΠ°Ρ… установлСнных участков ΠΏΡ€ΠΈ сохранСнии Π»ΠΎΠΊΠ°Π»ΡŒΠ½Ρ‹Ρ… особСнностСй сигналов. Для ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ выдСляСмого класса ΠΎΡ‚ΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ элСктроцСнтробСТных насосных установок сформированы Ρ€Π΅ΡˆΠ°ΡŽΡ‰ΠΈΠ΅ ΠΏΡ€Π°Π²ΠΈΠ»Π° Π½Π° основании экспСртных Π·Π½Π°Π½ΠΈΠΉ. ΠžΡΠ½ΠΎΠ²Π½Ρ‹ΠΌΠΈ отличиями ΠΎΡ‚ классичСского ΠΏΠΎΠ΄Ρ…ΠΎΠ΄Π° ΠΊ Π·Π°Π΄Π°Ρ‡Π΅ диагностирования ΡΠ²Π»ΡΡŽΡ‚ΡΡ: отсутствиС нСобходимости участия экспСрта ΠΏΡ€ΠΈ Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΈ Π·Π°Π΄Π°Ρ‡ΠΈ кластСризации; обСспСчСниС Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎΠΉ аппроксимации Π² Ρ€Π°ΠΌΠΊΠ°Ρ… Π²Ρ‹Π΄Π΅Π»Π΅Π½Π½Ρ‹Ρ… Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Ρ… участков; Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΈΠ½Ρ‚Π΅Ρ€ΠΏΡ€Π΅Ρ‚ΠΈΡ€ΡƒΠ΅ΠΌΡ‹Ρ… ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ΠΎΠ² распознавания нСисправностСй. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄, основанный Π½Π° Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΈ Π·Π°Π΄Π°Ρ‡ΠΈ диагностирования ΠΏΡƒΡ‚Ρ‘ΠΌ Π΅Ρ‘ Π΄Π΅ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ†ΠΈΠΈ Π½Π° ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ ΠΏΠΎΠ΄Π·Π°Π΄Π°Ρ‡ΠΈ: автоматичСская сСгмСнтация, формализация ΠΈ интСрпрСтация ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ…. ΠžΠΏΡ€Π΅Π΄Π΅Π»Ρ‘Π½ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹ΠΉ ΠΏΠ΅Ρ€Π΅Ρ‡Π΅Π½ΡŒ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΠΈΡ€ΡƒΠ΅ΠΌΡ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² эксплуатации элСктроцСнтробСТных насосных установок, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΠΉ Ρ€Π΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Ρ‚ΡŒ процСсс тСхничСского диагностирования.Ensuring effective control and preventing failures of electrical submersible pumps, because of their wide distribution is the relevant and demanded task. The use of automated control systems of electric centrifugal pumping units allows improving the quality and speed of decisions made about their technical condition. All methods of diagnosing the installation of electrical submersible pumps are aimed at monitoring the state of the composite nodes, and are reduced to the analysis of time series, which are the time scans of the operation parameters. Traditionally applied linear methods of time series research in the last decades have been substantially expanded by nonlinear methods, among which heuristic algorithms were developed significantly. The main aim is to increase the efficiency of determining the technical state of installations of electric centrifugal pumps during operation. Methods. The approach proposed in this paper is based on solving the diagnostic problem by decomposition into the following subtasks: automatic segmentation, formalization and interpretation of the data obtained. Segmentation is considered as a clustering problem, the purpose of which is the establishment of autocorrelation links between the values of the time series with the formation of temporal clusters and adaptive approximation within the established areas while preserving the local features of the signals. For each allocated class of deviations in operation of electric centrifugal pumping units, the decisive rules are formed based on expert knowledge. The main differences from the classical approach to the problem of diagnosis are: the lack of the need for expert participation in solving the clustering problem; providing adaptive approximation within the allocated time intervals; the possibility of implementing interpretable approaches to fault recognition. Results. The authors have proposed the approach based on solving the diagnostic problem by its decomposition into the following subtasks: automatic segmentation, formalization and interpretation of the data obtained. The necessary list of controlled parameters of operation of the electric centrifugal pumping units is determined. The list allows technical diagnosis

    Estimation of submersible induction motor equivalent circuit parameters based on test data

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    Одной ΠΈΠ· основных ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌ Π² процСссС эксплуатации скваТин, ΠΎΠ±ΠΎΡ€ΡƒΠ΄ΠΎΠ²Π°Π½Π½Ρ‹Ρ… установками элСктричСских Ρ†Π΅Π½Ρ‚Ρ€ΠΎΠ±Π΅ΠΆΠ½Ρ‹Ρ… насосов, являСтся ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ тСхничСского состояния ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктрооборудования ΠΈ ΠΏΡ€Π΅Π΄ΠΎΡ‚Π²Ρ€Π°Ρ‰Π΅Π½ΠΈΠ΅ Π΅Π³ΠΎ ΠΎΡ‚ΠΊΠ°Π·ΠΎΠ². Π‘Ρ€Π΅Π΄ΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ΠΎΠ² ΠΊ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡŽ Π΄Π°Π½Π½ΠΎΠΉ Π·Π°Π΄Π°Ρ‡ΠΈ ΠΌΠΎΠΆΠ½ΠΎ Π²Ρ‹Π΄Π΅Π»ΠΈΡ‚ΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ опрСдСлСния тСхничСского состояния установки элСктроцСнтробСТных насосов с использованиСм ΠΏΠΎΠ»Π½ΠΎΠΉ настраиваСмой матСматичСской ΠΌΠΎΠ΄Π΅Π»ΠΈ установки, Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‰Π΅ΠΉ модСль ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля. РассмотрСн ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ ΠΊ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΡŽ ΠΈ Π²ΠΎΡΡΡ‚Π°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡŽ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹Ρ… ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² для настройки ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля Π½Π° основании Π΄Π°Π½Π½Ρ‹Ρ…, ΠΏΡ€ΠΈΠ²Π΅Π΄Ρ‘Π½Π½Ρ‹Ρ… Π² ΠΏΡ€ΠΎΡ‚ΠΎΠΊΠΎΠ»Π΅ испытаний ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля. ЦСль: Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ ΠΏΠΎ Π²ΠΎΡΡΡ‚Π°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡŽ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² схСмы замСщСния для ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля Π½Π° основании Ρ‚ΠΈΠΏΠΎΠ²Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ…, содСрТащихся Π² ΠΏΡ€ΠΎΡ‚ΠΎΠΊΠΎΠ»Π΅ ΠΏΡ€ΠΈΡ‘ΠΌΠΎ-сдаточных испытаний. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΉ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ основан Π½Π° совмСстном использовании настраиваСмой динамичСской ΠΌΠΎΠ΄Π΅Π»ΠΈ асинхронного элСктродвигатСля с ΠΊΠΎΡ€ΠΎΡ‚ΠΊΠΎΠ·Π°ΠΌΠΊΠ½ΡƒΡ‚Ρ‹ΠΌ Ρ€ΠΎΡ‚ΠΎΡ€ΠΎΠΌ ΠΈ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠΌ Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ ΡΠ²ΠΎΠ»ΡŽΡ†ΠΈΠΈ. ЀактичСски Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅ Π·Π°Π΄Π°Ρ‡ΠΈ ΠΏΠΎ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΡŽ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² схСмы замСщСния ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля сводится ΠΊ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡŽ Π·Π°Π΄Π°Ρ‡ΠΈ глобальной ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ, Ρ‚. Π΅. ΠΊ Π·Π°Π΄Π°Ρ‡Π΅ Π½Π° поиск глобального (Π½Π°ΠΈΠ»ΡƒΡ‡ΡˆΠ΅Π³ΠΎ) ΠΌΠΈΠ½ΠΈΠΌΡƒΠΌΠ° Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ для восстановлСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² схСмы замСщСния ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ позволяСт ΡƒΡΡ‚Π°Π½Π°Π²Π»ΠΈΠ²Π°Ρ‚ΡŒ ΠΏΡ€ΠΈΠ΅ΠΌΠ»Π΅ΠΌΡ‹Π΅ для ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠΈ значСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² схСмы замСщСния для ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½ΠΎΠ³ΠΎ элСктродвигатСля ΠΏΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ испытаний; ΠΏΡ€ΠΎΠ²Π΅Ρ€Π΅Π½Π° Ρ€Π°Π±ΠΎΡ‚ΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡ‚ΡŒ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄Π° ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² глобальной ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΈ матСматичСского модСлирования ΠΏΠΎΠ³Ρ€ΡƒΠΆΠ½Ρ‹Ρ… асинхронных элСктродвигатСлСй; ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ ΠΎΡ†Π΅Π½ΠΊΠΈ ΡΠ²Π»ΡΡŽΡ‚ΡΡ устойчивыми для всСх ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² схСмы замСщСния ΠΊΡ€ΠΎΠΌΠ΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π° мСханичСской подсистСмы.One of the main problems in operation of wells equipped with installations of electric centrifugal pumps is determining the technical condition of submersible electrical equipment and preventing its failures. Among the various approaches to solving this problem, one can single out a method for determining the technical state of an installation of electric centrifugal pumps using a complete customizable mathematical model of the installation, including a model of a submersible induction motor. This article discusses an approach to determining and restoring the necessary parameters for tuning a submersible induction motor model based on the data given in the submersible induction motor test report. The main aim of the research is to develop a methodology for restoring the parameters of the equivalent circuit for submersible induction motor on the basis of typical data contained in the acceptance test report. Methods. The proposed approach is based on the combined use of a tunable dynamic model of a squirrel-cage induction motor and a differential evolution algorithm. The actual solution to determine the parameters of submersible induction motor damage is reduced to solving the global optimization problem, i. e. to the problem of finding the global (best) minimum of a function. Results. The authors have developed an approach for restoring the parameters of the submersible induction motor equivalent circuit, which allows setting the values of the equivalent circuit parameters for the submersible induction motor, acceptable for practice, according to the test results; the performance of the developed identification approach was tested using global optimization methods and mathematical modeling of submersible induction motors; the obtained estimates are stable for all parameters of the equivalent circuit except for the parameter of the mechanical subsystem
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