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Information × Registration Number 0225U001491, (0122U001266) , R & D reports Title Models and means to prevent the deterioration of the quality of power supply of industrial consumers (code: Monitor-4) popup.stage_title 3.1. Дослідження електромагнітних процесів в електричній мережі за різних режимів роботи випрямляча з метою покращення показників якості електроенергії згідно до нормативних вимог. 3.2. Розроблення алгоритмів оцінки відповідності показників якості електричної енергії встановленим нормам в умовах експлуатації. 3.3. Розроблення адаптивних струмових захистів електричних мереж від однофазних замикань на землю. Head Kyrylenko Oleksandr V., Доктор технічних наук Registration Date 01-02-2025 Organization Institute of Electrodynamics of the National Academy of Sciences of Ukraine popup.description1 Development of methods and means to increase the reliability of electrical networks and ensure the quality of electricity supply of industrial consumers popup.description2 Research report: 290 p., 62 fig., 13 tab., 2 appendices, 93 sources. ELECTRODYNAMIC DISTURBANCES, POWER SUPPLY, SWITCHING DEVICES, CABLE NETWORKS, SINGLE-PHASE GROUND FLASH, TRANSIENT STARTING MODES, POWER QUALITY INDICATORS, VOLTAGE CHARACTERISTICS. The object of research is electrical networks and power systems. The purpose of the work is to develop methods and means to increase the reliability of the operation of electrical networks and ensure the quality of power supply to industrial consumers. Research methods are mathematical modeling, a set of methods that includes the use of theoretical laws of electrical engineering, the theory of linear and nonlinear electrical circuits. A means of limiting transient starting currents in the network during sequential direct start-up from it of four asynchronous machines with a capacity of 8 MW each has been developed. In terms of its technical, economic and mass-dimensional indicators, the proposed means is more effective than alternative solutions for the case of devices with such a powerful (in total about 100 MW) load. An algorithm for assessing the level of optimality of maintaining modes in the power supply system of an industrial enterprise has been proposed, which implements an assessment of the current state of the network and possible effects of deviations in voltage and current levels in the forecast period and can be implemented both with the involvement of a dispatcher and in automatic mode. Algorithms for assessing the compliance of electrical energy quality indicators with established standards under operating conditions have been developed, in particular algorithms for assessing the compliance of voltage deviation and its fluctuations, non-sinusoidality and voltage asymmetry, as well as the deviation of the frequency of the fundamental voltage harmonic from nominal values ​​in 110-220 kV distribution networks. Developed algorithms for assessing the compliance of voltage dips and temporary voltage surges in   Product Description popup.authors Ivanochok Nataliia D. Balaniuk Nataliia B. Blinov Ihor V. Borovyk Yurii M. Varskyi Hryhorii M. Voitov Dmytro V. Hai Oleksandr V. Hnatyshyna Olena А. Horbovets Viktoriia A. Hrechko Viacheslav V. Denysiuk Serhii P. Dovhodko Yurii M. Diachuk Serhii Ya. Diachuk Tetiana M. Kyrylenko Dmytro O. Kyrylenko Oleksandr V. Kozeniuk Ihor M. Koshman Vsevolod І. Kuznetsov V. H. Kuchanskyi Vladyslav V. Lenha Oleh V. Marshevskyi Andrii S. Mykhailevskyi Oleh S. Nikishyn Dmytro А. Nevechera Ihor V. Pavlovskyi Vsevolod V. Panov Anatolii V. Pylypenko Yurii V. Prykhodko Anna V. Rak Svitlana Ye. Reznik Svitlana O. Rybina Oksana B. Sabarno Liudmyla R. Sevastyuk Ihor M. Slynko Volodymyr M. Spodynskyi Oleksandr V. Stohnii Borys S. Trach Ihor V. Tuhai Iryna Yu. Tuhai Yurii I. Khrapak Oleksandr I. Cherepanova Valentuna M. Chyzhenko Oleksandr I. Chukhnov Oleh H. Shpolianskyi Oleh H. popup.nrat_date 2025-02-01 Close