4 research outputs found

    ПРОЕКТНЫЕ ДИАПАЗОННЫЕ КРИТЕРИИ ПРИ РАЗРАБОТКЕ РЕГУЛИРУЕМЫХ АСИНХРОННЫХ ДВИГАТЕЛЕЙ

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    The paper presents automated optimization designing of regulated induction motors accomplished for a variety of design problems under two range criteria. Design tasks involve consideration of both static and dynamic modes. Dependence of change in the motors variable parameters on the criterion chosen and the designing objectives is determined.Выполнено автоматизированное оптимизационное проектирование регулированных асинхронных двигателей для различных проектных задач при двух диапазонных критериях. Проектные задачи предполагают рассмотрение как статических, так и динамических режимов. Определено изменение варьируемых параметров двигателей в зависимости от выбранного критерия и проектной задачи.Виконано автоматизоване оптимізаційне проектування регульованих асинхронних двигунів для різних проектних задач при двох діапазонних критеріях. Проектні задачі припускають розгляд як статичних, так і динамічних режимів. Визначено зміну варійованих параметрів двигунів залежно від обраного критерію та проектної задачі

    DESIGN RANGE CRITERIA IN DESIGNING OF CONTROLLED ASYNCHRONOUS MOTORS

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    Выполнено автоматизированное оптимизационное проектирование регулированных асинхронных двигателей для различных проектных задач при двух диапазонных критериях. Проектные задачи предполагают рассмотрение как статических, так и динамических режимов. Определено изменение варьируемых параметров двигателей в зависимости от выбранного критерия и проектной задачи.Виконано автоматизоване оптимізаційне проектування регульованих асинхронних двигунів для різних проектних задач при двох діапазонних критеріях. Проектні задачі припускають розгляд як статичних, так і динамічних режимів. Визначено зміну варійованих параметрів двигунів залежно від обраного критерію та проектної задачі.The paper presents automated optimization designing of regulated induction motors accomplished for a variety of design problems under two range criteria. Design tasks involve consideration of both static and dynamic modes. Dependence of change in the motors variable parameters on the criterion chosen and the designing objectives is determined

    МОДЕЛИРОВАНИЕ РЕГУЛИРУЕМЫХ АСИНХРОННЫХ ЭЛЕКТРОПРИВОДОВ С СОГЛАСУЮЩИМИ РЕДУКТОРАМИ И ТРАНСФОРМАТОРАМИ

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    Purpose. Working out of mathematical models of the speed-controlled induction electric drives ensuring joint consideration of transformers, motors and loadings, and also matching reducers and transformers, both in static, and in dynamic regimes for the analysis of their operating characteristics. Methodology. At mathematical modelling are considered functional, mass, dimensional and cost indexes of reducers and transformers that allows observing engineering and economic aspects of speed-controlled induction electric drives. The mathematical models used for examination of the transitive electromagnetic and electromechanical processes, are grounded on systems of nonlinear differential equations with nonlinear coefficients (parameters of equivalent circuits of motors), varying in each operating point, including owing to appearances of saturation of magnetic system and current displacement in a winding of a rotor of an induction motor. For the purpose of raise of level of adequacy of models a magnetic circuit iron, additional and mechanical losses are considered. Results. Modelling of the several speed-controlled induction electric drives, different by components, but working on a loading equal on character, magnitude and a demanded control range is executed. At use of characteristic families including mechanical, at various parameters of regulating on which performances of the load mechanism are superimposed, the adjusting characteristics representing dependences of a modification of electrical, energy and thermal magnitudes from an angular speed of motors are gained. Originality. The offered complex models of speed-controlled induction electric drives with matching reducers and transformers, give the chance to realize well-founded sampling of components of drives. They also can be used as the design models by working out of speed-controlled induction motors. Practical value. Operating characteristics of various speed-controlled induction electric drives are observed and depending on the chosen measure including measure of cost of losses of active energy, sampling of the best alternative of the drive is realized.Исследована работа разных асинхронных двигателей в составе регулируемых электроприводов, которые выполняют одну и ту же техническую задачу, с учетом включения таких элементов, как согласующие трансформатор и редуктор. Проведено сопоставление характеристик двигателей в статических и динамических режимах. Определены энергетические, массогабаритностоимостные показатели электроприводов. Обоснована возможность выбора лучшего варианта привода, как по вышеуказанным показателям, так и по стоимости потерь активной энергии.Досліджено роботу різних асинхронних двигунів у складі регульованих електроприводів, що виконують одну і ту ж технічну задачу, з урахуванням включення таких елементів, як узгоджувальні трансформатор і редуктор. Зроблено зіставлення характеристик двигунів в статичних та динамічних режимах. Визначено енергетичні, масогабаритновартісні показники електроприводів. Обґрунтовано можливість вибору кращого варіанту приводу, як за вищевказаними показниками, так і за вартістю втрат активної енергії

    MODELING CONTROLLED ASYNCHRONOUS ELECTRIC DRIVES WITH MATCHING REDUCERS AND TRANSFORMERS

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    Purpose. Working out of mathematical models of the speed-controlled induction electric drives ensuring joint consideration of transformers, motors and loadings, and also matching reducers and transformers, both in static, and in dynamic regimes for the analysis of their operating characteristics. Methodology. At mathematical modelling are considered functional, mass, dimensional and cost indexes of reducers and transformers that allows observing engineering and economic aspects of speed-controlled induction electric drives. The mathematical models used for examination of the transitive electromagnetic and electromechanical processes, are grounded on systems of nonlinear differential equations with nonlinear coefficients (parameters of equivalent circuits of motors), varying in each operating point, including owing to appearances of saturation of magnetic system and current displacement in a winding of a rotor of an induction motor. For the purpose of raise of level of adequacy of models a magnetic circuit iron, additional and mechanical losses are considered. Results. Modelling of the several speed-controlled induction electric drives, different by components, but working on a loading equal on character, magnitude and a demanded control range is executed. At use of characteristic families including mechanical, at various parameters of regulating on which performances of the load mechanism are superimposed, the adjusting characteristics representing dependences of a modification of electrical, energy and thermal magnitudes from an angular speed of motors are gained. Originality. The offered complex models of speed-controlled induction electric drives with matching reducers and transformers, give the chance to realize well-founded sampling of components of drives. They also can be used as the design models by working out of speed-controlled induction motors. Practical value. Operating characteristics of various speed-controlled induction electric drives are observed and depending on the chosen measure including measure of cost of losses of active energy, sampling of the best alternative of the drive is realized
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