Issue №: 2(117)
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.
ANALYSIS AND DEVELOPMENT OF BRIDGE SCHEMES FOR JET POWER CONTROL
Возняк Олександр Миколайович – кандидат технічних наук, доцент кафедри «Електроенергетики, електротехніки та електромеханіки» Вінницького національного аграрного університету (вул. Сонячна, 3, м. Вінниця, 21008, Україна, email: alex.voz1966@gmail.com, https://orcid.org/0000-0002-0986-6869 ).
Токарчук Олексій Анатолійович – кандидат технічних наук, доцент кафедри технологічних процесів та обладнання переробних і харчових виробництв Вінницького національного аграрного університету (вул. Сонячна, 3, м. Вінниця, 21008, Україна, e-mail: tokarchuk@vsau.vin.ua https://orcid.org/0000-0001-8036-1743).
Штуць Андрій Анатолійович – асистент кафедри «Електроенергетики, електротехніки та електромеханіки» Вінницького національного аграрного університету (вул. Сонячна, 3, м. Вінниця, 21008, Україна, email: shtuts1989@gmail.com, https://orcid.org/0000-0002-4242-2100 ).
Тихонов Володимир Костянтинович – доцент кафедри «Фізичного виховання» Вінницького національного технічного університету (Хмельницьке шосе, 95, м. Вінниця, 21021, Україна, email: tykhonovvolodymyr@vntu.edu.ua).
Reactive power compensation is one of the components of improving the efficiency of electrical networks, the theoretical foundations of which were developed at the beginning of the last century by Frieze and Budenau. However, the development of effective control algorithms for reactive power compensation devices continues today. It is conducted in two directions - increasing the efficiency of the compensation process, which is mainly determined by the inertia of the control algorithm, and finding effective and compact methods for describing the components of the power of the electrical network. At present, the p-q instantaneous power theory proposed by Akagi and a number of other theories is widely used.
The transition to electronic control methods of power devices, such as electric drive, radio transmitting devices - has dramatically increased the efficiency of such systems, but set an urgent task to ensure optimal conditions for power transmission to load, ie coordination of output stages of power amplifiers and actuators. Such coordination is provided at compensation of reactive components in output circles. To implement this task, it is advisable to use a controlled inductance and capacitance. At the same time, the use of traditional solutions used by varicaps or reactive transistors is limited by the technological possibilities of using varicaps at high reactive capacities. The use of an external power supply is a significant disadvantage, limiting the scope of controlled reactivity based on reactive transistors. Setting the DC mode of controlled reactivity transistors requires the use of additional batteries, blocking and filtering, which reduces the reliability of the device. The use of additional power supplies also reduces the energy efficiency of the device as a whole and limits the use of such devices only to low-power electronic components: frequency modulators, frequency tuners, etc. In power electronics, the power of controlled reactivity is energy inefficient.
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About the journal
G8 – Materials Science
G9 – Applied Mechanics
G10 – Metallurgy
G11 – Mechanical Engineering (by specializations)
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
The All-Ukrainian scientific journal “Technology, energy, agriculture transport AIC” is an open-access scientific publication that publishes the results of original research, theoretical and applied developments, as well as scientific papers in the fields of engineering sciences, energy systems, and transport technologies of the agro-industrial complex.
The main objective of the scientific journal “Technology, energy, agriculture transport AIC” is to disseminate the results of modern scientific research and to promote the development of technical, energy, and transport solutions for the agro-industrial complex through the publication of scientific materials characterized by scientific novelty and practical significance in the field of design and modernization of machinery, equipment, and technologies.
The journal’s activities are focused on supporting the development of engineering science, stimulating the implementation of innovative approaches into industrial practice, as well as ensuring effective exchange of scientific achievements among researchers, educators, engineers, and other specialists in relevant fields.
Objectives of the Journal
To achieve its defined objective, the journal ensures the implementation of the following key tasks:
· publication of the results of fundamental and applied research covering the fields of applied mechanics, mechanical engineering, materials science, energy systems, electrical engineering, electromechanics, and transport systems of the agro-industrial sector;
· promotion of the implementation of advanced technical and technological developments aimed at improving the efficiency of machinery, equipment, and production processes;
· creation of conditions for active scientific exchange among research institutions, higher education institutions, industrial enterprises, and other interested organizations;
· support for the development of interdisciplinary research and expansion of cooperation among specialists in various fields of science and technology;
· promotion of the improvement of the scientific and technical level of research related to the design, modernization, and operation of technical equipment used in agro-industrial production;
· dissemination of information on modern achievements in science and technology and the implementation of innovative technologies in the fields of technical support, energy, and transport;
· development of a scientific information environment that facilitates effective scientific communication and the integration of national research into the international scientific community.
Publication frequency: 4 issues per year
Languages of publication: Ukrainian, English
Editor-in-Chief: Vitalii YAROPUD
State Registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting № 1337 and № 1180. Media Identifier: R30-05173
EDRPOU Code: 00497236
Publisher ROR: https://ror.org/05m3ysc06
Publisher DOI Prefix: 10.37128
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.
