energyЭнергетика. Известия высших учебных заведений и энергетических объединений СНГENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations1029-74482414-0341BNTU10.21122/1029-7448-2020-63-5-423-440energy-1993Research ArticleЭЛЕКТРОЭНЕРГЕТИКАELECTRICAL POWER ENGINEERINGОнлайн-идентификация электромагнитных параметров асинхронного двигателяOnline-Identification of Electromagnetic Parameters of an Induction MotorТытюкВ. А.TytiukV. K.

Кривой Рог

Kryvyi Rih

БарановскаяМ. Л.BaranovskayaM. L.

Кривой Рог

Kryvyi Rih

ЧерныйА. П.ChornyO. P.

Кременчуг

Kremenchuk

БурдильнаяЕ. В.BurdilnayaE. V.

Адрес для переписки: Бурдильная Евгения Владимировна – Кременчугский национальный университет имени Михаила Остроградского, ул. Первомайская, 20,  39600, г. Кременчуг, Украина.  Тел.: +380 5366 3-11-47

evburdilnaya@gmail.com

Address for correspondence: Burdilnaya Evheniia V.  – Kremenchuk Mykhailo Ostrohradskyi National University, 20, Pershotravneva str., 39600, Kremenchuk, Ukraine. Tel.: +380 5366 3-11-47

evburdilnaya@gmail.com

evburdilnaya@gmail.comКузнецовВ. В.KuznetsovV. V.

Днепр

Dnipro

БогатыревК. Н.BogatyriovK. N.

Горишние Плавни

Horishni Plavni

Криворожский национальный университетУкраинаKryvyi Rih National UniversityUkraineКременчугский национальный университет имени Михаила ОстроградскогоУкраинаKremenchuk Mykhailo Ostrohradskyi National UniversityUkraineНациональная металлургическая академия УкраиныУкраинаNational Metallurgical Academy of UkraineUkraineПолтавский горно-обогатительный комбинатУкраинаPoltava Mining and Processing PlantUkraine202013102020635423440Copyright © Тытюк В.А., Барановская М.Л., Черный А.П., Бурдильная Е.В., Кузнецов В.В., Богатырев К.Н., 20202020Тытюк В.А., Барановская М.Л., Черный А.П., Бурдильная Е.В., Кузнецов В.В., Богатырев К.Н.Tytiuk V.K., Baranovskaya M.L., Chorny O.P., Burdilnaya E.V., Kuznetsov V.V., Bogatyriov K.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://energy.bntu.by/jour/article/view/1993

Несоответствие настроек системы  управления  фактическим  значениям  параметров частотно-регулируемого  асинхронного  электропривода  может  иногда  приводить  к  полной 

неработоспособности частотного электропривода, к существенному снижению динамических показателей качества. Такие параметры, как активное сопротивление и индуктивность ротора, индуктивность цепи намагничивания, недоступны для непосредственного измерения. При приемо-сдаточных испытаниях они не определяются, а величины, приводимые в каталогах и справочниках, являются расчетными и могут существенно отличаться от реальных значений конкретной машины. Несмотря на постоянные усилия исследователей, задача идентификации электромагнитных параметров схемы замещения асинхронного двигателя остается важной и актуальной. Авторы статьи разработали метод онлайн-идентификации электромагнитных параметров асинхронного двигателя, что позволит реализовать точную настройку регуляторов системы частотного управления при эксплуатационных изменениях характеристик приводного двигателя. Выполнен анализ установившегося режима работы асинхронного двигателя без использования Т-образной схемы его замещения. Предложен подход, опирающийся на уравнения асинхронного двигателя в трехфазной неподвижной системе координат, полученные на основе теории обобщенного электромеханического преобразователя. С учетом аналитических преобразований этих формул получена система нелинейных алгебраических уравнений четвертого порядка, решение которой позволяет определить активное сопротивление ротора, сопротивление рассеивания и главную взаимную индуктивность асинхронного двигателя в предположении, что активное сопротивление статора известно. Произведена верификация предлагаемого метода. На основании данных установившегося режима работы асинхронного двигателя типа 4А250М2УЗ выполнена идентификация его электромагнитных параметров, исследовано влияние начального приближения на точность полученных результатов, которые подтверждают работоспособность рассматриваемого метода идентификации.

Incompliance of the settings of the system to control actual values of the parameters of a variable frequency induction electric drive may sometimes result in complete non-operability of a variable frequency electric drive as well as in the considerable reduction of the dynamic quality parameters. Such parameters as active rotor resistance, rotor inductance, and inductance of the magnetization circuit are available for the immediate measuring. They are not identified in terms of the acceptance tests, and the values presented in catalogues and reference books are calculated ones that may differ considerably from the real values of a certain machine. Despite constant studies by the researchers, a task to identify electromagnetic parameters of the equivalent circuit of an induction motor is still important and topical. The objective of the paper is to develop a method of online-identification of the electromagnetic parameters of an induction motor making it possible to implement accurate regulator adjustment of the frequency control system in terms of operational changes in the driving motor parameters. For the first time, the paper analyzes a steady mode of induction motor operation which does not apply T-network of the equivalent circuit of an induction motor. An approach has been proposed relying on the equation of an induction motor in three-phase fixed coordinate system obtained on the basis of the theory of generalized electromechanical converter.

 

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The authors declare that there are no conflicts of interest present.