Results 11 to 20 of about 3,613 (51)

An energy efficient electric drive of air units

open access: yesElektrotehnìka ta Elektroenergetika, 2021
Purpose. Improving the efficiency and energy performance of an asynchronous electric drive for stationary fan’s units of the main ventilation line of mines. Methodology.
И. М. Коцур   +3 more
doaj   +1 more source

NUMERICAL WITHOUT ITERATION METHOD OF MODELING OF ELECTROMECHANICAL PROCESSES IN ASYNCHRONOUS ENGINES

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. Development of calculation of electromagnetic and electromechanic transients is in asynchronous engines without iterations. Methodology. Numeral methods of integration of usual differential equations, programming. Findings.
D. G. Patalakh   +2 more
doaj   +1 more source

Параметричне керування ефективністю асинхронного приводу засобами перетворювача з підвищеним коефіцієнтом потужності

open access: yesElektrotehnìka ta Elektroenergetika, 2020
Мета роботи. Розробка схемного рішення та обґрунтування параметрів системи керування і силової частини перетворювача напруги живлення, за умови його експлуатації з підвищеним коефіцієнтом потужності  і плавного або ступеневого способів регулювання ...
V.A. Borodai   +2 more
doaj   +1 more source

Оптимальні геометричні відношення для індукційного левітатора електромеханічних перетворювачів

open access: yesElektrotehnìka ta Elektroenergetika, 2012
На основі аналітичних виразів ампервитків обмотки керування магнітної індукції у сталі магнітопровода і температури перегріву обмотки отримані вирази для геометричних розмірів левітаційного екрана і обмотки керування.
Ya. R. Abdullayev   +2 more
doaj   +1 more source

APPROACH TO DETERMINATION OF NO LOAD CURRENT OF THREE-PHASE POWER TRANSFORMERS WITH PLANE RODS MAGNETIC SYSTEMS

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. Development a new effective approach for determining the open-circuited transformer parameters by implementing a combination of a schematic and spatial mathematical model of nonstationary electromagnetic fields in three-phase transformers ...
T. E. Divchuk   +5 more
doaj   +1 more source

HEAT EXCHANGE CONDITIONS IN THE DRY STORAGE CONTAINER FOR SPENT NUCLEAR FUEL OF POWER REACTORS

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. The safety substantiation of the spent nuclear fuel of power reactors WWER-1000 of Zaporizhska NPP dry storage facility operation by carrying out of numerical study of the thermal processes inside dry storage container. Methodology. Mathematical
S.V. Alyokhina
doaj   +1 more source

Optimal scheduling of deep peak regulation for thermal power units in power grid with large-scale new energy

open access: yes电力工程技术, 2023
Currently, thermal power units need to undergo deep peak regulation transformation to improve the power grid's ability of large scale new energy consumption.
YU Guoqiang   +4 more
doaj   +1 more source

OPTIMIZATION OF MAGNETIZATION AND MAGNATION REGIMES OF STOPPED THREE-PHASE SYNCHRONOUS MACHINE

open access: yesElektrotehnìka ta Elektroenergetika, 2018
Purpose. Investigation and optimization (minimization) of electric energy losses in a stopped synchronous machine with a thyristor exciter under conditions of its magnetization and demagnetization. Methodology.
V. A. VOLKOV
doaj   +1 more source

Droop control strategy of MMILC based on energy fluctuation in sub-module capacitor

open access: yes电力工程技术, 2023
In hybrid AC/DC microgrid, interlinking converter (ILC) can balance power flow between AC and DC microgrid, thus stabilizing AC frequency and DC voltage in islanding mode.
WANG Shuwei, SU Jianjun, LIU Yang
doaj   +1 more source

Semi-occlusion substation fusion positioning method based on multi-sensor signal statistical model

open access: yes电力工程技术, 2023
There are problems such as building occlusion and electromagnetic interference in substations, which lead to a rapid decline in the accuracy of traditional personnel control methods based on electromagnetic wave positioning.
XUE Can, HAN Qiang, WANG Zhi
doaj   +1 more source

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