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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2024-67-3-220-229</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-47</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>СИСТЕМНЫЙ АНАЛИЗ, УПРАВЛЕНИЕ И ОБРАБОТКА ИНФОРМАЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SYSTEM ANALYSIS, MANAGEMENT AND INFORMATION PROCESSING</subject></subj-group></article-categories><title-group><article-title>Мультистабильная динамика системы управления с однополярной широтно-импульсной модуляцией</article-title><trans-title-group xml:lang="en"><trans-title>Multistable Dynamics of a Control System with Unipolar Pulse-Width Modulation</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>Жусубалиев</surname><given-names>Ж. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhusubaliyev</surname><given-names>Zh. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жаныбай Турсунбаевич Жусубалиев — д-р техн. наук, профессор,</p><p>Курск. </p></bio><bio xml:lang="en"><p>Zhanybai T. Zhusubaliyev — Dr. Sci., Professor,</p><p>Kursk.</p></bio><email xlink:type="simple">zhanybai@gmail.com</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>Абдирасулов</surname><given-names>А. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdirasulov</surname><given-names>A. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айтибек Закирович Абдирасулов — директор,</p><p>Ош.</p></bio><bio xml:lang="en"><p>Aitibek Z. Abdirasulov - Director,</p><p>Osh.</p></bio><email xlink:type="simple">aitibek.osh@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сопуев</surname><given-names>У. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sopuev</surname><given-names>U. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уланбек Адахимжанович Сопуев — канд. физ.-мат. наук, доцент, декан,</p><p>Ош.</p></bio><bio xml:lang="en"><p>Ulanbek A. Sopuev — PhD, Associate Professor, Dean, </p><p>Osh.</p></bio><email xlink:type="simple">ulansopuev@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коломиец</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolomiets</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Александровна Коломиец — канд. техн. наук; ст. преподаватель,</p><p>Курск.</p></bio><bio xml:lang="en"><p>Elena A. Kolomiets — PhD, Senior Lecturer,</p><p>Kursk.</p></bio><email xlink:type="simple">lenus07@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Юго-Западный государственный университет, кафедра вычислительной техники; Международная научная лаборатория динамики негладких систем</institution></aff><aff xml:lang="en"><institution>Southwest State University, Department of Computer Science; International Scientific Laboratory for Dynamics of Non-Smooth Systems</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Ошский государственный университет, IT академия</institution></aff><aff xml:lang="en"><institution>Osh State University, IT Academy</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Ошский государственный университет, факультет математики и информационных технологий</institution></aff><aff xml:lang="en"><institution>Osh State University, Faculty of Mathematics and Information Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Юго-Западный государственный университет, кафедра вычислительной техники; Международная научная лаборатория динамики негладких систем</institution></aff><aff xml:lang="en"><institution>Southwest State University, Department of Computer Science, International Scientific Laboratory for Dynamics of Non-Smooth Systems</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>25</day><month>11</month><year>2024</year></pub-date><volume>67</volume><issue>3</issue><fpage>220</fpage><lpage>229</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/47">https://pribor.ifmo.ru/jour/article/view/47</self-uri><abstract><p>Исследуется динамика негладкого отображения с большим числом многообразий переключения, описывающего поведение однополярной широтно-импульсной системы управления энергообеспечением нагревательной установки (печи) для выращивания монокристаллов сапфира.  Показано, что такое отображение демонстрирует особый тип мультистабильности, когда в фазовом пространстве динамической системы сосуществуют несколько вложенных друг в друга притягивающих замкнутых инвариантных кривых, соответствующих устойчивым двухчастотным колебаниям. Результаты исследований важны для создания новых способов прогнозирования, обнаружения, подавления нерегулярных колебаний и катастрофических явлений, возникающих при вариации параметров и воздействии помех, а также для проектирования импульсных систем автоматического управления с заданными динамическими свойствами и прогнозируемой динамикой. </p></abstract><trans-abstract xml:lang="en"><p>The dynamics of a non-smooth mapping with a large number of switching manifolds, which describes the behavior of a unipolar pulse-width control system for the energy supply of a heating installation (furnace) for growing sapphire single crystals, is studied. Such a mapping is shown to demonstrate a special type of multistability, when several nested attractive closed invariant curves corresponding to stable two-frequency oscillations coexist in the phase space of the dynamic system. Results of the research are important for creating new methods of predicting, detecting, and suppressing irregular oscillations and catastrophic phenomena that arise when parameters vary and are exposed to interference, as well as for designing pulsed automatic control systems with specified dynamic properties and predictable dynamics.  </p></trans-abstract><kwd-group xml:lang="ru"><kwd>мультистабильность</kwd><kwd>бифуркации граничного столкновения</kwd><kwd>негладкое непрерывное отображение</kwd><kwd>квазипериодическая седло-узловая бифуркация</kwd><kwd>замкнутая инвариантная кривая</kwd><kwd>двухчастотные колебания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multistability</kwd><kwd>border collision bifurcations</kwd><kwd>non-smooth continuous mapping</kwd><kwd>quasi-periodic saddle-node bifurcation</kwd><kwd>closed invariant curve</kwd><kwd>two-frequency oscillations</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Министерства науки и высшего образования Российской Федерации, программа стратегического академического лидерства „Приоритет-2030“, гранты № 1.71.23 П, 1.7.21/S-2, и Ошского государственного университета, грант № 14-22.</funding-statement><funding-statement xml:lang="en">The work was supported by the Ministry of Science and Higher Education of the Russian Federation, the program of strategic academic leadership “Priority-2030”, grants No. 1.71.23 P, 1.7.21/S-2, and Osh State University, grant No. 14-22.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Feudel U., Grebogi C., Hunt B. 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