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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">ipolytech</journal-id><journal-title-group><journal-title xml:lang="ru">iPolytech Journal</journal-title><trans-title-group xml:lang="en"><trans-title>iPolytech Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-4004</issn><issn pub-type="epub">2782-6341</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/1814-3520-2020-5-1069-1079</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-437</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>ЭНЕРГЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Сравнение двух вариантов пуска электропривода ленточного конвейера</article-title><trans-title-group xml:lang="en"><trans-title>Сравнение двух вариантов пуска электропривода ленточного конвейера</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлов</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlov</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павлов Владимир Евгеньевич, кандидат технических наук, доцент, доцент кафедры электропривода и электрического транспорта</p><p>664074, г. Иркутск, ул. Лермонтова, 83 </p></bio><bio xml:lang="en"><p>Vladimir E. Pavlov, Cand. Sci. (Eng.), Associate Professor, Associate Professor of the Department of Electric Drive and Electric Transport</p><p>83, Lermontov St., Irkutsk 664074 </p></bio><email xlink:type="simple">pvew52@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>13</day><month>11</month><year>2020</year></pub-date><volume>24</volume><issue>5</issue><fpage>1069</fpage><lpage>1079</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Павлов В.Е., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Павлов В.Е.</copyright-holder><copyright-holder xml:lang="en">Pavlov V.E.</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://ipolytech.elpub.ru/jour/article/view/437">https://ipolytech.elpub.ru/jour/article/view/437</self-uri><abstract><p>Цель – исследование энергетических и эксплуатационных параметров ленточного конвейера при двух способах пуска: прямом и частотном. Учитывая нелинейность математического описания механической части ленточных конвейеров и приводного асинхронного двигателя, анализ пусковых режимов проводился методом нелинейного дифференциального исчисления с заменой эквивалентных масс сосредоточенными. Расчеты проводились на моделях с применением MATLAB. Установлено, что применение частотного преобразователя для конвейера позволяет: при пуске двигателя уменьшить в 4,7 раза максимальный ток; в 2,5 раза максимальный момент; в 1,52 раза максимальный момент сил сопротивления на валу двигателя; в 8,68 раза максимальное значение потерь мощности в обмотке статора; в 10,2 раза суммарную мощность потерь; в 2,9 раза потребляемую из сети мощность; в 3,4 раза величину потерь энергии в обмотке статора; в 3 раза суммарные потери энергии; в 1,25 раза потребляемую из сети энергию; в 3 раза максимальное ускорение ленты; в 3 раза значения перерегулирования во время переходных процессов по величинам набегающих усилий натяжений ленты на различных участках конвейера; в 1,875 раза время переходных процессов по величинам набегающих усилий натяжений ленты на различных участках конвейера. Разработанная математическая модель ленточного конвейера позволяет получить количественные оценки энергетических и эксплуатационных параметров установки при двух способах пуска: прямом и частотном. Применение частотного пуска конвейера позволяет в три раза сократить потери энергии в двигателе и уменьшить его нагрев, уменьшает более чем в три раза максимальные значения усилий натяжений ленты на различных участках конвейера.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the paper is to study the energy and operational parameters of a belt conveyor under two starting methods: direct and frequency. Taking into account the non-linearity of the mathematical description of belt conveyor mechanical part and induction motor drive, the analysis of starting modes is carried out by the method of nonlinear differential calculus where equivalent masses are replaced with the discrete ones. The calculations are performed on the models using MATLAB. It is found out that the use of a frequency converter for the conveyor allows to reduce the maximum current by 4.7 times when starting the motor; by 2.5 times the maximum moment; by 1.52 times the maximum moment of resistance forces on the motor shaft; by 8.68 times the maximum value of power losses in stator windings; by 10.2 times the total power losses; by 2.9 times the power consumed from the network; by 3.4 times the amount of energy losses in the stator windings; by 3 times the total energy losses; by 1.25 times the energy consumed from the network; by 3 times the maximum acceleration of the belt; by 3 times the overshooting values during transients by the values of leading tension forces of the belt on various sections of the conveyor; by 1.875 times the transients duration in terms of the leading tension forces of the belt on different sections of the conveyor. The developed mathematical model of the belt conveyor makes it possible to obtain quantitative estimates of energy and operational parameters of the installation under two starting methods: direct and frequency. The use of frequency start-up of the conveyor allows to decrease motor energy losses by 3 times. It also reduces motor heating as well as decreases the maximum values of belt tension forces on various sections of the conveyor by more than three times.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ленточный конвейер</kwd><kwd>асинхронный двигатель</kwd><kwd>прямой и частотный пуск</kwd><kwd>усилие натяжения ленты</kwd><kwd>рабочая и холостая ветвь</kwd><kwd>модель электропривода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>belt conveyor</kwd><kwd>induction motor</kwd><kwd>direct and frequency starting</kwd><kwd>belt tension force</kwd><kwd>operating and idle branch</kwd><kwd>electric drive model</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">Метельков В.П., Либерман Я.Л. К вопросу о выборе режима пуска ленточного конвейера // Электротехнические системы и комплексы. 2019. № 2. 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