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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">probener</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИ</journal-title><trans-title-group xml:lang="en"><trans-title>Power engineering: research, equipment, technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-9903</issn><issn pub-type="epub">2658-5456</issn><publisher><publisher-name>Kazan State Power Engineering  University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30724/1998-9903-2026-28-3-37-48</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-3905</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЭЛЕКТРОТЕХНИЧЕСКИЕ КОМПЛЕКСЫ И СИСТЕМЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTROTECHNICAL COMPLEXES AND SYSTEMS</subject></subj-group></article-categories><title-group><article-title>Моделирование параметров надежности схем электроснабжения объектов в среде Matlab/Simulink</article-title><trans-title-group xml:lang="en"><trans-title>Modeling of reliability parameters of electrical power supply circuits of facilities in the Matlab/Simulink environment</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-2508-8771</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрова</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrova</surname><given-names>Renata M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петрова Рената Маратовна – аспирант</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Kazan</p></bio><email xlink:type="simple">1998renata@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5379-847X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Грачева</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gracheva</surname><given-names>Elena I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Грачева Елена Ивановна – д-р. техн. наук, профессор кафедры «Электроснабжение промышленных предприятий»</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Kazan</p></bio><email xlink:type="simple">grachieva.i@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский государственный энергетический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Power Engineering University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>24</day><month>06</month><year>2026</year></pub-date><volume>28</volume><issue>3</issue><fpage>37</fpage><lpage>48</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петрова Р.М., Грачева Е.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Петрова Р.М., Грачева Е.И.</copyright-holder><copyright-holder xml:lang="en">Petrova R.M., Gracheva E.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.energyret.ru/jour/article/view/3905">https://www.energyret.ru/jour/article/view/3905</self-uri><abstract><p>АКТУАЛЬНОСТЬ исследования заключается в разработке компьютерной модели оценки и прогнозирования параметров надежности схем систем электроснабжения объектов с трансформаторными подстанциями напряжением 10/0,4 кВ.</p><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. При проведении исследований используются методы теории надежности и теории вероятностей. Проведено моделирование параметров схем электроснабжения в среде Matlab / Simulink для исследования основных показателей надежности (таких, как параметр потока отказов схемы (ωсхемы), время наработки на отказ (Тнар.отк), вероятность безотказной работы (P) и вероятность отказа (Q). Проведено 12 вычислительных экспериментов с изменением исходных параметров для схем различной конфигурации.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Представлены результаты вычислительных экспериментов с помощью разработанной модели в среде Matlab/Simulink для оценки параметров надежности схем электроснабжения – ωсхемы, Тнар.отк, P и Q при изменении исходных данных.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. В работе представлены результаты моделирования в среде Matlab/Simulink. Полученные результаты могут быть рекомендованы для использования при проектировании систем электроснабжения. Применение разработанной модели при проектировании и эксплуатации систем электроснабжения объектов позволяет оценивать параметры надежности схем и управлять надежностью электроснабжения потребителей при эффективной работе электрооборудования. </p></sec></abstract><trans-abstract xml:lang="en"><p>The RELEVANCE of this study is to develop a computer model for assessing and predicting the reliability parameters of power supply system circuits for facilities with 10/0.4 kV transformer substations.</p><sec><title>METHODS</title><p>METHODS: Reliability theory and probability theory methods were used in the research. The parameters of power supply circuits were modeled in Matlab/Simulink to study key reliability indicators (such as the circuit failure rate parameter (ωcircuit), mean time between failures (MTBF), probability of failure-free operation (P), and probability of failure (Q). Twelve computational experiments were conducted with varying initial parameters for circuits of various configurations.</p></sec><sec><title>RESULTS</title><p>RESULTS. The results of computational experiments using the developed model in Matlab/Simulink are presented. They were used to estimate the reliability parameters of power supply circuits – ωcircuit, TBF, P, and Q – with varying initial data.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The paper presents the results of modeling in Matlab/Simulink. The obtained results can be recommended for use in the design of power supply systems. Application of the developed model in the design and operation of power supply systems at facilities allows for the assessment of circuit reliability parameters and the management of the reliability of power supply to consumers while ensuring the efficient operation of electrical equipment.</p></sec><sec><title> </title><p> </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>схема электроснабжения</kwd><kwd>резервирование</kwd><kwd>надежность</kwd><kwd>моделирование</kwd><kwd>трансформатор</kwd><kwd>кабельная линия.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>power supply diagram</kwd><kwd>redundancy</kwd><kwd>reliability</kwd><kwd>modeling</kwd><kwd>transformer</kwd><kwd>cable line</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Виноградов А.В., Лансберг А.А., Волчков Ю.Д., Виноградова А.В. 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