Issue №: 3 (126)
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.
FEATURES OF THE INFLUENCE OF A SHORT CIRCUIT OF THE STATOR WINDING OF AN INDUCTION MOTOR ON THE SPECTRAL COMPOSITION OF ITS STATOR CURRENT
Valerii HRANIAK – Candidate of Science (Engineering), Associate Professor, Associate Professor of the Department of Power engineering, electrical engineering and electromechanics of Vinnytsia National Agrarian University. (3 Soniachna St., Vinnytsia, Ukraine, 21008, e-mail: titanxp2000@ukr.net https://orcid.org/0000-0001-6604-6157).
Yaroslav SAFTYUK – Recipient of the Third Educational and Scientific Level, majoring in 133 Industrial Mechanical Engineering of the Vinnytsia National Agrarian University. (Soniachna St., 3, Vinnytsia, Ukraine, 21008, e-mail: valentyn.rohach@gmail.com, https://orcid.org/0009-0003-9730-7198).
In recent decades, there has been a consistent trend towards the increasing role of automated electric drives based on induction motors. This is driven by objective factors, such as the development of high-precision mathematical models of induction motors, which have improved the accuracy and functionality of their control systems, as well as advancements in power semiconductor technologies that have enhanced efficiency and reduced the cost of frequency converters. These advancements in scientific and technical progress have led to an expansion of the application of induction motors in controlled electric drives under difficult starting conditions, which were traditionally implemented using direct current motors, as well as an increase in the number of electric drives with electric control types.
At the same time, modern technological progress has also resulted in increased complexity, cost, and technological demands of industrial equipment, which raises potential risks of emergency failures. Another common trend for Ukraine and many industrially developed countries is the growing number of electrical equipment that has reached the end of its nominal service life. Since there is an inverse relationship between the reliability and operating time of rotating electrical machines, this logically leads to an increased need for effective diagnostic systems.
The article theoretically proves the influence of interturn short circuits in the stator windings of an induction motor on the shape of its stator currents. It is shown that this diagnostic method has a sufficient degree of expressiveness, allowing for a high probability of identifying this type of defect among other types of damage to the induction electric machine. The justification for using the amplitude of the fundamental harmonic f1 for diagnosing this type of defect is provided, along with the subsequent modulation of even harmonics at frequencies of 2f1 to 10f1. It is proposed to consider the current spectrum in a logarithmic scale of dB/Hz due to the presence of a dominant current component at the power supply frequency f1.
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About journal
The magazine "Engineering, Energy, Transport AIC" is included in the list of scientific professional editions of Ukraine on technical sciences
(Category "Б", Order of the Ministry of Education and Science of Ukraine dated 02.07.2020 №886)
According to the decision of National Council of Television and Radio Broadcasting of Ukraine from 25.04.2024 No. 1337 the scientific journal «Engineering, Energy, Transport AIC» has the ID of the Media R30-05173.
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.
Founder of the journal: Vinnytsia National Agrarian University
Type of publication: journal
Kind of publication: scientific
Publication status: domestic
Year of foundation: 1997
Periodicity: 4 times per year
Volume: 18-20 conv. print. sheet (А4)
ISSN: 2520-6168 (print version), (online version)
Language of publication: (mixed languages) Ukrainian, English
The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.
The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.
The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".
Subscription to the journal can be issued in each post office. The subscription index is 99720.
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production.
During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured.
Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.
The journal consistently adheres to the principles of open science. All published materials are distributed under the Creative Commons Attribution 4.0 International License (CC BY 4.0), ensuring open access to research results provided proper attribution to the authors and the original publication is maintained.
At present, Technology, energy, agriculture transport AIC is an authoritative professional scientific journal (Category B), providing a platform for the publication of fundamental and applied research results, promoting the integration of education, science, and industry, and contributing to the advancement of engineering and technological support of the agro-industrial complex of Ukraine.
