ИНЖЕНЕРНЫЕ МЕТОДЫ РАСЧЕТОВ РАБОЧИХ РЕЖИМОВ  АСИНХРОННЫХ ЭЛЕКТРОПРИВОДОВ С ОСЛАБЛЕННЫМ  ОСНОВНЫМ МАГНИТНЫМ ПОТОКОМ

V.L Kodkin; M.A Grigorev; Е.А. Kuznetsova; A.S Anikin; А.А Baldenkov; N.A Loginova

doi:10.14529/power240105

Authors

V.L Kodkin South Ural State University (National Research University)
M.A Grigorev South Ural State University (National Research University)
Е.А. Kuznetsova South Ural State University (National Research University)
A.S Anikin South Ural State University (National Research University)
А.А Baldenkov South Ural State University, Chelyabinsk, Russia
N.A Loginova South Ural State University (National Research University)

DOI:

https://doi.org/10.14529/power240105

Keywords:

engineering methods, substitution schemes, current parity, rotor currents, sliding, asynchronous electric motors

Abstract

This article discusses engineering methods for calculating the operating modes of asynchronous electric drives with frequency control with a reduced main magnetic flux. Magnetization currents and rotor currents are calculated by methods formed on the basis of simplified equivalent circuits for induction motors and vector diagrams. The conditions for the minimum stator current are given, it is proved that this state corresponds to the equality of the amplitudes of the magnetizing current and the rotor current (reactive and active currents, respectively). This provision makes it possible to estimate the current of the rotor of an asynchronous electric motor when the main magnetic flux is weakened, and the calculation of the rotor and magnetization currents is also carried out according to experimental data. The proposed calculation methods are necessary for optimizing the operating modes of asynchronous electric drives operating with a load less than the nominal one. This optimization consists in reducing the maximum amplitude of the stator voltage. The proposed methods make it possible to evaluate the decrease in the magnetization current and the increase in the rotor current, which may turn out to be excessive.

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References

Абрамов О.В., Катуева Я.В., Назаров Д.А. Оптимальный параметрический синтез по критерию

запаса работоспособности // Проблемы управления. 2007. № 6. С. 64–69.

Park R.H., Robertson B.L. The Reactances of synchronous machines // Transactions of the American In-stitute of Electrical Engineers. 1928. Vol. 47, no. 2. P. 514–535. DOI: 10.1109/T-AIEE.1928.5055010

Усольцев А.А. Частотное управление асинхронными двигателями: учеб. пособие. СПб.: СПбГУ ИТМО, 2006. 94 с.

Аникин В.В., Кондратенко П.А. Идентификация параметров схемы замещения погружного электро-двигателя // StudNet. 2022. № 6. P. 7122–7130.

Alekseev V.V., Emel’yanov A.P., Kozyaruk A.E. Analysis of the dynamic performance of variable-frequency induction motor drive using various control structures and algorithms // Russian Electrical Engineering. 2016. Vol. 87, no. 4. P. 181–188. URL: http://link.springer.com/article/10.3103/S1068371216040027.

Космодамианский А.С., Стрекалов Н.Н., Пугачев А.А. Синтез системы скалярного управления асинхронным двигателем с минимизацией потерь мощности // XVIII Международная конференция «Элек-тромеханика, электротехнологии, электротехнические материалы и компоненты»: труды МКЭЭЭ-2020, Алушта, 21–25 сентября 2020 года. М.: Фирма Знак, 2020. С. 103–107.

Mishchenko V.A. The vector control method of electromechanical converters // Electrical Engineering. 2004. No. 7. P. 47–51.

Altivar Process. Преобразователи частоты ATV630, ATV650, ATV660, ATV680 Руководство по про-граммированию 05/2017(10.10 [Режим энергосбережения]).

Kodkin V.L., Anikin A.S. The Experimental Identification Method of the Dynamic Efficiency for Frequen-cy Regulation Algorithms of AEDs // Inetrnational Journal of Power Electronics and Drive Systems. 2021.Vol. 12, no. 1. P. 59–66. DOI: 10.11591/ijpeds.v12.i1. pp59-66

Kodkin V.L., Anikin A.S., Baldenkov A.A. Performance Identification of the asynchronous electric drive by the Spectrum of Rotor Currents // International Journal of Power Electronics and drive Systems. 2019. Vol. 10, no. 1. P. 211–218. DOI: 10.11591/ijpeds.v10n1.pp211-218

Kodkin V.L., Anikin, A.S., Baldenkov A.A. The Dynamics Identification of Asynchronous Electric Drives Via Frequency Response // International Journal of Power Electronics and Drive Systems. 2019. Vol. 10, no. 1. P. 66–73. DOI: 10.11591/ijpeds.v10n1.pp66-73

Kodkin, V.L., Anikin, A.S., Baldenkov A.A. Stabilization of the Stator and Rotor Flux Linkage of the In-duction Motor in the Asynchronous Electric Drives with Frequency Regulation // International Journal of Power Electronics and drive Systems. 2020. Vol. 11, no. 1. P. 213–219. DOI: 10.11591/ijpeds.v11.i1. pp213-219

Design of Speed Sensorless Control of Induction Motor Based on Dual-Nonlinear Control Technique / A. Ammar, T. Ameid, Y. Azzoug et al. // 2020 International Conference on Electrical Engineering (ICEE). Istan-bul, Turkey, 2020. P. 1–6. DOI: 10.1109/ICEE49691.2020.9249796