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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">kaz44</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Университета Шакарима. Серия технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Shakarim University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2788-7995</issn><issn pub-type="epub">3006-0524</issn><publisher><publisher-name>«Шәкәрім университеті» КеАҚ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53360/2788-7995-2026-2(22)-15</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2470</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>АВТОМАТИЗАЦИЯ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ</subject></subj-group></article-categories><title-group><article-title>ГЛОБАЛЬНАЯ СТАБИЛИЗАЦИЯ ОБРАТНОЙ СВЯЗИ ПО ВЫХОДУ С ФИКСИРОВАННЫМ ВРЕМЕНЕМ ДЛЯ ВОЗМУЩЕННЫХ НЕЛИНЕЙНЫХ СИСТЕМ</article-title><trans-title-group xml:lang="en"><trans-title>GLOBAL OUTPUT FEEDBACK STABILIZATION WITH FIXED TIME FOR DISTURBED NONLINEAR SYSTEMS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-8070-0970</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ерғазы</surname><given-names>Ж. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yergazy</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жансая Нұрғазықызы Ерғазы – PhD-докторант кафедры «Математическое и компьютерное моделирование»,</p><p>010000, г.Астана., ул.Сәтпаева, 2</p></bio><bio xml:lang="en"><p>Жансая Нұрғазықызы Ерғазы – PhD-докторант кафедры «Математическое и компьютерное моделирование»,</p><p>010000, Astana, Satpayev Street, 2</p></bio><email xlink:type="simple">yergaziyevaaa@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0766-2229</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Әлімхан</surname><given-names>Қ.</given-names></name><name name-style="western" xml:lang="en"><surname>Alimhan</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Қилан Әлімхан – PhD, Doctor of science (Japan), профессор кафедры «Математическое и компьютерное моделирование», </p><p>010000, г.Астана., ул.Сәтпаева, 2</p></bio><bio xml:lang="en"><p>Қилан Әлімхан – PhD, Doctor of science (Japan), профессор кафедры «Математическое и компьютерное моделирование»,</p><p>010000, Astana, Satpayev Street, 2</p></bio><email xlink:type="simple">keylan@live.jp</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3570-4676</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мукатаев</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukatayev</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нурлан Серикович Мукатаев – PhD, доцент кафедры «Системного анализа и управления»,</p><p>010000, г.Астана., ул.Сәтпаева, 2</p></bio><bio xml:lang="en"><p>Нурлан Серикович Мукатаев – PhD, доцент кафедры «Системного анализа и управления»,</p><p>010000, Astana, Satpayev Street, 2</p></bio><email xlink:type="simple">mukatayev_ns@enu.kz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Евразийский национальный университет имени Л.Н. Гумилева</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>L.N. Gumilyov Eurasian National University</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>07</month><year>2026</year></pub-date><volume>0</volume><issue>2(22)</issue><fpage>141</fpage><lpage>152</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ерғазы Ж.Н., Әлімхан Қ., Мукатаев Н.С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ерғазы Ж.Н., Әлімхан Қ., Мукатаев Н.С.</copyright-holder><copyright-holder xml:lang="en">Yergazy Z., Alimhan K., Mukatayev N.</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://tech.vestnik.shakarim.kz/jour/article/view/2470">https://tech.vestnik.shakarim.kz/jour/article/view/2470</self-uri><abstract><p>Представлен новый метод синтеза алгоритма управления нелинейными динамическими системами второго порядка на основе концепции фиксированно-временной стабилизации с выходной обратной связью. Исследование ориентировано на широкий класс планарных нелинейных объектов, для которых невозможен полный доступ к переменным состояния. Основу предложенной методики составляет объединение теории билимитной однородности и принципов классического ляпуновского анализа устойчивости. Такой подход позволил разработать непрерывный наблюдатель с фиксированным временем сходимости, который гарантированно оценивает неизмеряемое состояние системы независимо от начальных условий и начальных ошибок оценивания. На основе этой оценки построен непрерывный регулятор, обеспечивающий стабилизацию системы в фиксированное наперёд заданное время. Метод обладает рядом преимуществ: устойчивость и сходимость не зависят от величины и знака начальных условий; управление остаётся непрерывным, что исключает дрожание исполнительных устройств; достигается высокая робастность к ограниченным внешним возмущениям и шумам измерений. Алгоритм может быть реализован на микроконтроллерах без необходимости в высокочастотной дискретизации, что делает его привлекательным для практического использования. В качестве примера рассмотрена динамика микромеханического зеркала (MEMS mirror), представляющего собой яркий пример высоконелинейного электромеханического объекта. Проведено численное моделирование, результаты которого подтверждают эффективность предложенной схемы управления. По сравнению с существующими конечновременными регуляторами время переходного процесса уменьшено более чем в четыре раза, а отклонение и энергетические затраты системы снижены почти вдвое. Полученные результаты подтверждают возможность применения разработанного метода в задачах высокоточного управления микро и макромеханическими приводами, а также в интеллектуальных робототехнических и виброоптических системах.</p></abstract><trans-abstract xml:lang="en"><p>A new method is presented for synthesising a control algorithm for second-order nonlinear dynamic systems based on the concept of fixed-time stabilisation with output feedback. The study focuses on a broad class of planar nonlinear systems for which full access to state variables is not possible. The proposed methodology is based on a combination of the theory of bi-limit homogeneity and the principles of classical Lyapunov stability analysis. This approach has enabled the development of a continuous observer with a fixed convergence time, which reliably estimates the unmeasurable state of the system regardless of initial conditions and initial estimation errors. Based on this estimation, a continuous controller is constructed that ensures system stabilisation within a predetermined time.</p><p>The method has a number of advantages: stability and convergence do not depend on the magnitude and sign of the initial conditions; control remains continuous, which eliminates oscillation of the actuators; high robustness to limited external disturbances and measurement noise is achieved. The algorithm can be implemented on microcontrollers without the need for high-frequency sampling, making it attractive for practical use. As an example, the dynamics of a microelectromechanical system (MEMS) mirror are considered, which is a striking example of a highly non-linear electromechanical object. Numerical simulations were carried out, the results of which confirm the effectiveness of the proposed control scheme. Compared to existing finite-time controllers, the transient response time is reduced by more than a factor of four, whilst the system error and energy consumption are reduced by almost half. The results obtained confirm the applicability of the developed method to high-precision control of micro- and macro-mechanical actuators, as well as in intelligent robotic and vibro-optical systems.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фиксированное время стабилизации</kwd><kwd>би-лимитная однородность</kwd><kwd>выходная обратная связь</kwd><kwd>MEMS-зеркало</kwd><kwd>устойчивость по Ляпунову</kwd><kwd>нелинейные управляемые объекты</kwd><kwd>наблюдатель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fixed-time stabilization</kwd><kwd>bi-limit homogeneity</kwd><kwd>output feedback</kwd><kwd>MEMS mirror</kwd><kwd>nonlinear control systems</kwd><kwd>Lyapunov stability</kwd><kwd>observer design</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">Bhat S.P. Finite-time stability of continuous autonomous systems / S.P. Bhat, D.S. Bernstein // SIAM J. 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