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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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2023-9-53-58</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-2039</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>ЭЛЕКТРОМАГНИТНЫЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTROMAGNETIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Определение составляющих потерь в стали магнитопроводов электрических машин</article-title><trans-title-group xml:lang="en"><trans-title>Determination of components of losses in the steel of the magnetic circuit of electric machines</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5280-6792</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плотников</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Plotnikov</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Михайлович Плотников</p><p>Красноярск</p></bio><bio xml:lang="en"><p>Sergey M. Plotnikov</p><p>Krasnoyarsk</p></bio><email xlink:type="simple">smplotnikov@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иксиль</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Iksil</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николя Иксиль</p><p>Булонь-Бийанкур</p></bio><bio xml:lang="en"><p>Nicolas Iksil</p><p>Boulogne-Billancourt</p></bio><email xlink:type="simple">prima@gmx.de</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный университет науки и технологий им. М. Ф. Решетнёва; Красноярский институт железнодорожного транспорта</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Reshetnev Siberian State University of Science and Technology; Krasnoyarsk Institute of Railway Transport</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Компания General Electric</institution><country>Франция</country></aff><aff xml:lang="en"><institution>General Electric</institution><country>France</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>17</day><month>10</month><year>2023</year></pub-date><volume>0</volume><issue>9</issue><fpage>53</fpage><lpage>58</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/2039">https://www.izmt.ru/jour/article/view/2039</self-uri><abstract><p>Рассмотрено разделение полных потерь в электротехнической стали магнитопроводов электрических машин на три составляющие: гистерезисную, вихретоковую классическую и вихретоковую аномальную. Решение этой технической проблемы позволит эффективно проектировать и конструировать электрические машины с магнитопроводами, имеющими низкие магнитные потери. Данное разделение связано с трудоёмкими измерениями на специальном оборудовании и выполняется с большими погрешностями. Предложены два метода определения потерь в стали, основанные на известных зависимостях указанных составляющих потерь от частоты перемагничивания и температуры – соответственно методы трёх частот и трёх температур. В этих методах составляющие определяют по результатам трёх опытов холостого хода при трёх частотах или трёх температурах сердечников электрических машин. С использованием результатов измерений активных мощностей, затраченных на нагрев сердечника, рассчитаны мощности гистерезисных, вихретоковых классических и аномальных потерь. Результаты экспериментов, проведённых методами трёх частот и трёх температур, хорошо согласуются друг с другом, что подтверждает адекватность методов и возможность их применения на практике. Проанализированы достоинства и трудности реализации каждого метода. Методы можно применять для эффективной минимизации потерь в стали электрических машин.</p></abstract><trans-abstract xml:lang="en"><p>The division of total losses in electrical steel of the magnetic circuit of electric machines into three components is considered: hysteresis, classical eddy current and anomalous eddy current. The solution to this technical problem will make it possible to effectively design and construct electrical machines with magnetic cores having low magnetic losses. At present, such a separation of losses is associated with time-consuming measurements on special equipment and is performed with large errors. Each of these components depends differently on the magnetization frequency and temperature, and these dependences are known. Based on this, the paper proposes two methods for determining losses in steel – the method of three frequencies and the method of three temperatures. In order to fi nd three unknown quantities, three no-load experiments are proposed, carried out at three frequencies or at three temperatures of electric machine cores. Using the results of measurements of active powers spent on core heating, expressions of hysteresis, eddy-current classic and eddy-current anomalous losses are obtained. The results of the experiments carried out by the method of three frequencies and the method of three temperatures agree well with each other, which confi rms the adequacy of the methods and the possibility of their application in practice. The article analyzes the advantages and diffi culties of implementing each method. The methods can be applied to effectively minimize losses in the steel of electrical machines.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитопровод</kwd><kwd>гистерезисные потери</kwd><kwd>вихретоковые потери</kwd><kwd>аномальные потери</kwd><kwd>опыт холостого хода</kwd><kwd>метод трёх частот</kwd><kwd>метод трёх температур</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnet wire</kwd><kwd>hysteresis losses</kwd><kwd>eddy current losses</kwd><kwd>anomalous losses</kwd><kwd>no-load experiment</kwd><kwd>three-frequency method</kwd><kwd>three-temperature method</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">Bertotti G. IEEE Transactions on Magnetics, 1988, vol. 24, no. 1, pp. 621–630. https://doi.org/10.1109/20.43994</mixed-citation><mixed-citation xml:lang="en">Bertotti G. 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