Результати для "frequency"

Результати для "frequency" Показ 1 - 50 результатів із 149 Laminas_Feed_Writer 2 (https://getlaminas.org) https://harvester.nas.gov.ua/Search/Results?sort=last_indexed+desc&limit=50&lookfor=%22frequency%22&type=Subject&lng=uk 149 0 50 Модулятор для здійснення амплітудної модуляції багатьох складових Sun, 05 Apr 2026 01:00:21 +0000 https://harvester.nas.gov.ua/Record/oai:tkea.com.ua:article-75 https://harvester.nas.gov.ua/Record/oai:tkea.com.ua:article-75 Horbatyi, Ivan Стаття 2021 Horbatyi, Ivan 0 EFFICIENCY OF USING RENEWABLE ENERGY SOURCES FOR POWER SUPPLY OF WATER LIFTING PUMPING SYSTEMS Wed, 01 Apr 2026 01:00:04 +0000 https://harvester.nas.gov.ua/Record/veorgua-article-611 https://harvester.nas.gov.ua/Record/veorgua-article-611 Popovych , O. Стаття 2026 Popovych , O. 0 AN OPEN RESONATOR WITH INTERNAL INHOMOGENEITIES Sat, 28 Mar 2026 02:00:06 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1491 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1491 Kuzmychov, I. K. Стаття 2026 Kuzmychov, I. K. 0 DATA ACQUISITION AND MULTITHREAD PROCESSING IN STEPPED-FREQUENCY NOISE GROUND-BASED SAR FOR 2D REAL-TIME IMAGING Thu, 26 Mar 2026 16:19:09 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1489 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1489 Lukin, K. Стаття 2026 Lukin, K. 0 PREDICTION OF ENERGY EFFICIENCY OF SCREW COMPRESSORS IN AMMONIA REFRIGERATION SYSTEMS WITH FREQUENCY CONTROL USING A NEURAL NETWORK Tue, 24 Mar 2026 02:03:42 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-941 https://harvester.nas.gov.ua/Record/systemreorg-article-941 Nitsak, Yaroslav Стаття 2026 Nitsak, Yaroslav 0 MATHEMATICAL MODELS FOR CONTROLLING ACTIVE EMERGENCY FREQUENCY AND POWER REGULATORS IN POWER SYSTEMS WITH POTENTIAL INTEGRATION OF WIND AND SOLAR POWER PLANTS. PRIORITY DIRECTIONS Tue, 24 Mar 2026 02:03:34 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-906 https://harvester.nas.gov.ua/Record/systemreorg-article-906 Denysov, Viktor Стаття 2025 Denysov, Viktor 0 CONTROL OF ELECTRICITY QUALITY PARAMETERS OF GENERAL-PURPOSE ELECTRICAL GRIDS USING THE PHASE METHOD Tue, 24 Mar 2026 02:03:21 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-847 https://harvester.nas.gov.ua/Record/systemreorg-article-847 Kovtun, Svitlana Стаття 2024 Kovtun, Svitlana 0 Optimal generation dispatch with wind and solar curtailment Tue, 24 Mar 2026 02:02:56 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-764 https://harvester.nas.gov.ua/Record/systemreorg-article-764 Shulzhenko S.V. Стаття 2020 Shulzhenko S.V. 0 Mixed-integer linear programming mathematical model for founding the optimal dispatch plan of Ukrainian thermal power plants’ units and hydro pumping storages stations’ units for balancing daily load profile of power system of Ukraine Tue, 24 Mar 2026 02:02:50 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-740 https://harvester.nas.gov.ua/Record/systemreorg-article-740 Shulzhenko S.V. Стаття 2020 Shulzhenko S.V. 0 The role and mechanisms of influence of the derivatives of regulating capacities on frequency stability in power systems with wind power plants Tue, 24 Mar 2026 02:02:50 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-741 https://harvester.nas.gov.ua/Record/systemreorg-article-741 Kulyk М.M. Стаття 2020 Kulyk М.M. 0 Adaptive model of frequency and power control in power systems with wind power plants Tue, 24 Mar 2026 02:02:37 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-681 https://harvester.nas.gov.ua/Record/systemreorg-article-681 Kulyk М.M. Стаття 2018 Kulyk М.M. 0 Influence of dead band and speed of the regulator on frequency stabilization process in power system with powerful wind power plants and battery energy storage systems Tue, 24 Mar 2026 02:02:35 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-674 https://harvester.nas.gov.ua/Record/systemreorg-article-674 Zgurovets O.V. Стаття 2018 Zgurovets O.V. 0 Review of passive loop systems for normalization of high-voltage cable line magnetic field Tue, 24 Mar 2026 02:02:25 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-617 https://harvester.nas.gov.ua/Record/systemreorg-article-617 Grinchenko , Volodymyr Стаття 2022 Grinchenko , Volodymyr 0 Possibilities to form a modern reserve of supporting of a frequency in integrated power systems based on storage batteries for automatic adjustment of frequency and power Tue, 24 Mar 2026 02:02:11 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-549 https://harvester.nas.gov.ua/Record/systemreorg-article-549 Zgurovets Стаття 2022 Zgurovets 0 The determination of maximum capacities of solar power plants in IPS of Ukraine Tue, 24 Mar 2026 02:02:09 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-543 https://harvester.nas.gov.ua/Record/systemreorg-article-543 Dryomin V.P. Стаття 2016 Dryomin V.P. 0 Mathematical Modeling of Processes of Frequency and Power Automatic Control in the Interconnected Power System (IPS) with Dispersed Wind Power Plant and Generators-Regulators Tue, 24 Mar 2026 02:02:06 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-526 https://harvester.nas.gov.ua/Record/systemreorg-article-526 Dryomin I.V. Стаття 2014 Dryomin I.V. 0 Mathematical modeling and analysis of WPP’s rotating parts inertia moment’s influence upon frequency controlling process Tue, 24 Mar 2026 02:02:04 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-514 https://harvester.nas.gov.ua/Record/systemreorg-article-514 Dryomin I.V. Стаття 2014 Dryomin I.V. 0 General-puropse model of frequency and capacity regulation in united power systems Tue, 24 Mar 2026 02:02:00 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-500 https://harvester.nas.gov.ua/Record/systemreorg-article-500 Kulyk М.M. Стаття 2013 Kulyk М.M. 0 Discrete Fourier transform application for wind speed simulation Tue, 24 Mar 2026 02:01:59 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-494 https://harvester.nas.gov.ua/Record/systemreorg-article-494 Kulyk М.M. Стаття 2013 Kulyk М.M. 0 Methods of study of cost indexes of providing ancillary services of frequency control in point of power units loading in Power System of Ukraine Tue, 24 Mar 2026 02:01:55 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-479 https://harvester.nas.gov.ua/Record/systemreorg-article-479 Blinov I.V. Стаття 2013 Blinov I.V. 0 Development of a new integrated system of automatic control over the electrical load of Ukraine’s United power system (UPS) on the basis of electrothermal consumers-controllers Tue, 24 Mar 2026 02:01:53 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-466 https://harvester.nas.gov.ua/Record/systemreorg-article-466 Dubovskoy S.V. Стаття 2012 Dubovskoy S.V. 0 New directions in the realization of management process of the load current regime in OES of Ukraine Tue, 24 Mar 2026 02:01:53 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-473 https://harvester.nas.gov.ua/Record/systemreorg-article-473 Dubovskoy S.V. Стаття 2013 Dubovskoy S.V. 0 Intersystem power flow modeling under automatic frequency control Tue, 24 Mar 2026 02:01:51 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-465 https://harvester.nas.gov.ua/Record/systemreorg-article-465 Dryomin V.P. Стаття 2012 Dryomin V.P. 0 Account for nonlinear technological limitations at the simulation of transient processes in a power system with AFPC Tue, 24 Mar 2026 02:01:48 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-454 https://harvester.nas.gov.ua/Record/systemreorg-article-454 Dryomin V.P. Стаття 2012 Dryomin V.P. 0 Methodological features of the optimization of a composition of regulating power units in TPP with limited dynamic properties with regard for their interaction with system user-regulators Tue, 24 Mar 2026 02:01:46 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-442 https://harvester.nas.gov.ua/Record/systemreorg-article-442 Dubovskoy S.V. Стаття 2012 Dubovskoy S.V. 0 Simulation of the modes of operation of an AFPC system with controllable loads Tue, 24 Mar 2026 02:01:42 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-412 https://harvester.nas.gov.ua/Record/systemreorg-article-412 Dryomin V.P. Стаття 2011 Dryomin V.P. 0 Investigation of automatic frequency and power control system modes with regulatory generators Tue, 24 Mar 2026 02:01:40 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-403 https://harvester.nas.gov.ua/Record/systemreorg-article-403 Dryomin I.V. Стаття 2011 Dryomin I.V. 0 Fundamentals of automatic frequency and power control system based on the controllable loads Tue, 24 Mar 2026 02:01:36 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-378 https://harvester.nas.gov.ua/Record/systemreorg-article-378 Kulyk М.M. Стаття 2010 Kulyk М.M. 0 Automatic management modern consumer - regulate are decision question of providing frequency stability in of union OES of Ukraine, with demant of UCTE Tue, 24 Mar 2026 02:01:32 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-362 https://harvester.nas.gov.ua/Record/systemreorg-article-362 Dubovskoy S.V. Стаття 2009 Dubovskoy S.V. 0 The new methods of management on the basis of the checking of phase corners systems tensions in the basic knots of grid Tue, 24 Mar 2026 02:01:28 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-329 https://harvester.nas.gov.ua/Record/systemreorg-article-329 Lenchevsky Ye.A. Стаття 2008 Lenchevsky Ye.A. 0 Researches of perfection methods of control systems of electric power pools Tue, 24 Mar 2026 02:01:24 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-309 https://harvester.nas.gov.ua/Record/systemreorg-article-309 Lenchevsky Ye.A. Стаття 2007 Lenchevsky Ye.A. 0 Substantiation of possibility of providing in OES of Ukraine of processes of frequency adjusting under regulations set UCTE Tue, 24 Mar 2026 02:01:24 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-315 https://harvester.nas.gov.ua/Record/systemreorg-article-315 Lenchevsky Ye.A. Стаття 2007 Lenchevsky Ye.A. 0 Methods of determination and removal of possible frequency rejections in incorporated power systems operation at sudden violation of powers balance Tue, 24 Mar 2026 02:01:18 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-278 https://harvester.nas.gov.ua/Record/systemreorg-article-278 Dubovskoy S.V. Стаття 2006 Dubovskoy S.V. 0 Generalized mathematical model and features of adaptive automatic frequency and power control systems Tue, 24 Mar 2026 02:00:52 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-74 https://harvester.nas.gov.ua/Record/systemreorg-article-74 Kulyk М.M Стаття 2015 Kulyk М.M 0 Techno-Economic Aspects of Using Consumers-Controllers in Automatic Frequency and Power Control Systems Tue, 24 Mar 2026 02:00:48 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-49 https://harvester.nas.gov.ua/Record/systemreorg-article-49 Kulyk М.M. Стаття 2015 Kulyk М.M. 0 Characteristic of power consumption load graphs in United Power System of Ukraine Tue, 24 Mar 2026 02:00:40 +0000 https://harvester.nas.gov.ua/Record/systemreorg-article-127 https://harvester.nas.gov.ua/Record/systemreorg-article-127 Vikchorew Yu.O. Стаття 2001 Vikchorew Yu.O. 0 ПРИЧИНИ ВИНИКНЕННЯ ЛІСОВИХ ПОЖЕЖ У СОСНОВИХ НАСАДЖЕННЯХ ХЕРСОНЩИНИ ТА ЇХНІ НАСЛІДКИ Sun, 08 Feb 2026 08:02:02 +0000 https://harvester.nas.gov.ua/Record/oai:ojs2.forestry-forestmelioration.org.ua:article-99 https://harvester.nas.gov.ua/Record/oai:ojs2.forestry-forestmelioration.org.ua:article-99 Shevchuk, V. V. Стаття 2018 Shevchuk, V. V. 0 INVESTIGATION OF RESERVES FOR ENHANCING THE ENERGY EFFICIENCY OF A SMALL HYDROPOWER PLANT UNDER VARIATIONS IN TURBINE GENERATOR CURRENT FREQUENCY Sun, 08 Feb 2026 07:59:32 +0000 https://harvester.nas.gov.ua/Record/veorgua-article-587 https://harvester.nas.gov.ua/Record/veorgua-article-587 Popovych, O. Стаття 2025 Popovych, O. 0 STUDY OF FREQUENCY-CONTROLLED ASYNCHRONOUS MOTOR UNITS TEMPERATURE VERSUS LOAD AND POWER SUPPLY TYPE Sun, 08 Feb 2026 07:58:36 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-23885 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-23885 Vakaruk, T. V. Стаття 2014 Vakaruk, T. V. 0 FREQUENCY CONTROL IN ELECTRICAL SYSTEM MATHEMATICAL MODELING AND OPERATION CONTROL PROBLEMS Sun, 08 Feb 2026 07:58:34 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-22457 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-22457 Vepryk, Yu. M. Стаття 2014 Vepryk, Yu. M. 0 DEVELOPMENT OF A MATHEMATICAL MODEL FOR A FREQUENCY-CONTROLLED ASYNCHRONOUS MOTOR ROTOR TEMPERATURE FIELD ON THE BASIS OF DIFFERENTIAL EQUATIONS OF HEAT CONDUCTION Sun, 08 Feb 2026 07:58:25 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-19796 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-19796 Ostashevskiy, N. A. Стаття 2013 Ostashevskiy, N. A. 0 ACTIVE SCREENING OF MAGNETIC FIELD NEAR POWER STATION GENERATOR BUSES Sun, 08 Feb 2026 07:58:25 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-19801 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-19801 Kuznetsov, B. I. Стаття 2013 Kuznetsov, B. I. 0 AIR ATMOSPHERIC-PRESSURE DISCHARGERS FOR OPERATION IN HIGH-FREQUENCY SWITCHING MODE. Sun, 08 Feb 2026 07:58:18 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-17913 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-17913 Yevdoshenko, L. S. Стаття 2013 Yevdoshenko, L. S. 0 A COMPARATIVE ANALYSIS OF PROCESSES IN AN INDEPENDENT GENERATOR WITH A NONCONTACT CASCADE THREE-PHASE MODULATED EXCITER VIA A STAR-CONNECTED CIRCUIT UNDER ACTIVE-INDUCTIVE LOADING Sun, 08 Feb 2026 07:58:11 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-9622 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-9622 Vasyliv, K. M. Стаття 2013 Vasyliv, K. M. 0 Additional power loss in a frequency-controlled induction motor due to voltage higher harmonics Sun, 08 Feb 2026 07:58:01 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-5659 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-5659 Petrenko, A. N. Стаття 2012 Petrenko, A. N. 0 Optimization of loading modes of a controlled asynchronous electric drive Sun, 08 Feb 2026 07:57:41 +0000 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-14978 https://harvester.nas.gov.ua/Record/eiekhpieduua-article-14978 Kanov, L. N. Стаття 2013 Kanov, L. N. 0 COMPARISON OF AIR TEMPERATURE VARIATIONS ON THE AFRICAN CONTINENT AND THE SCHUMANN RESONANCE INTENSITY BY USING LONG-TERM ANTARCTIC OBSERVATIONS Tue, 02 Dec 2025 15:37:56 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1268 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1268 Paznukhov, A. V. Стаття 2017 Paznukhov, A. V. 0 OPEN RESONATOR FOR SUMMATION OF POWERS IN SUB-TERAHERTZ AND TERAHERTZ FREQUENCIES Tue, 02 Dec 2025 15:37:34 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1259 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1259 Kuz’michev, I. K. Стаття 2017 Kuz’michev, I. K. 0 I. S. SHKLOVSKY AND LOW-FREQUENCY RADIO ASTRONOMY Tue, 02 Dec 2025 15:37:23 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1255 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1255 Konovalenko, A. A. Стаття 2017 Konovalenko, A. A. 0 POSSIBILITY FOR FREQUENCY STABILIZATION OF MILLIMETER WAVELENGTH SOLID-STATE SOURCE BY A SCREENED DIELECTRIC RESONATOR Tue, 02 Dec 2025 15:37:17 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1253 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1253 Kogut, A. E. Стаття 2016 Kogut, A. E. 0