1._IntroductionA characteristic feature of the present day situation is the attempts of utility companies to increase energy efficiency in conditions of continuing aging of high voltage equipment.The practice of large-scale introduction of the intelligent support of decision making of optimal solution processes proves their efficiency. One of the directions of efficiency increase of electric energy transportation is improvement of methods and means of active power losses reduction on conditions of maintaining reliable operation of high voltage equipment, including out-dated equipment.The set of electric energy system (EES) states and the processes of transition from one state into another is the EES mode (further-mode), characterized by the parameters, for instance, electrical: substations voltages and loads, currents in transmission lines, transformation ratios of the transformers, etc. Normal operation mode of EES modes. Control by the system of on-line dispatching control (LDC). Modern LDS technologies, for instance, provided by Smart Grids concept, are aimed at improvement of its information support. This enables to implement more efficiently energy saving technologies in electric energy systems, when out of date high-voltage equipment is used. DETERMINATION OF OPTIMAL TRANSFORMATION RATIOS OF POWER SYSTEM TRANSFORMERS IN CONDITIONS OF INCOMPLETE INFORMATION REGARDING THE VALUES OF DIAGNOSTIC PARAMETERSO . R u b a n e n k o PhD, Associate Professor* Е-mail: rubanenkoae@ukr.net О . K a z m i r u kPhD, Assistant* Е-mail: oleg_kazmiruk@hotmail.com V . B a n d u r aPhD, Associate Professor** E-mail: bandura_3@ukr.net V . M a t v i j c h u kDoctor of Technical Sciences*** Е-mail: olenarubanenko@ukr.net O . R u b a n e n k oPhD*** Е-mail: olenarubanenko@ukr.net *Department of Electric Stations and Systems Vinnytsia National Technical University Khmelnytske highway, 95, Vinnytsia, Ukraine, 21021 **Department of Processes and equipment processing and food production named after Prof. P. S. Bernik**** ***Department of Electrical Engineering Systems, Technologies and Automation in Agroindustrial Complex**** ****Vinnytsia National Agrarian University Soniachna str., 3, Vinnitsa, Ukraine, 21008Шляхом аналізу пошкоджуваності силових трансформаторів та методів керування режимами електроенерге-тичних систем (ЕЕС) доведена доціль-ність використання результатів опе-ративного діагностування трансфор-маторів з РПН під час оптимально-го керування режимами. Приведена нечітка модель коефіцієнта залишко-вого ресурсу трансформатора. Роз-глянутий метод визначення опти-мальних керуючих впливів трансфор-маторами з РПН, з врахуванням їх технічного стану Ключові слова: оперативне діа-гностування, оптимальне керування, нормальні режими, втрати активної потужності Исследованы существующие мето-ды и средства оценивания компе-тентности экспертов. Проведено оце-нивание компетентности экспертов в сфере технического регулирования по установленным критериям. Ре-зультаты обработаны с помощью специальных методик и программ-ных средств с учетом не...
The article analyzes the damage of the main elements of current measuring transformers (CMT) and proposes a mathematical model of the residual life of CMT obtained by fuzzy modeling using Matlab software.
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