Transformer use for active power flow control in the electric power system

Kolcun, Michal; Hlubeň, Daniel; Beňa, Ľubomír; Djagarov, Nikolay; Grozdev, Zhivko

doi:10.1109/eeeic.2010.5489982

Cited by 3 publications

(6 citation statements)

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“…As compared with the known method of voltage drop control on the branches of EES circuits [1], with the method of overloads decrease of transmission lines, at the expense of redistribution of power overflows in EES [2], decrease of active power losses in the process of transportation [3] by means of LTC-transformers, the suggested method allows selecting, by means of accounting the suggested RRCT, the transformer for the EES mode control that would simultaneously provide the reduction of power losses and be more reliable.…”

Section: Discussion Of the Results Of Determining Optimal Transformatmentioning

confidence: 99%

“…increases, when such equipment has been in operation for more than 25 years [16]. Taking into consideration the fact that the control of EES modes is accompanied by the operation of switching devices, regulation devices of transformers, emergence of switching surges, ferro-resonances, currents increase in power and instrument transformers, transmission lines, etc., the control of modes must be realized, taking into consideration their technical state [3,4] and possible expenses for their replacement or repair.…”

Section: Materials and Methods Of Transformers Diagnostic Studymentioning

confidence: 99%

“…For instance, in [3], the possibilities of using a phase-shift transformer for power flows change in the electric energy system to reduce power losses in the process of energy transmission in transmission lines of the Slovak Republic are considered. In [4], the high price of FACTs technologies usage in the energy branch for the reduction of electrical power losses is proved.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…In [4], the high price of FACTs technologies usage in the energy branch for the reduction of electrical power losses is proved. In [5], three variants of power flows control in the electric grid, using three FACTs devices are consider with Thyristor Controlled Series Capacitor (TCSC), Static Synchronous Series Compensator (SSSC) and phase-shift transformer (PST), but in [3][4][5] no attention is paid to the state of equipment, used for modes control. In [6], the conclusion is made that prolongation of power transformers operation term for 20-30 years is more profitable than their replacement by new ones, and the number of power transformers in the USA, that have been in operation for more than 25 years (certificate resource -25 years) is approximately 65 %.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Determination of optimal transformation ratios of power system transformers in conditions of incomplete information regarding the values of diagnostic parameters

Rubanenko

Kazmiruk

Bandura

et al. 2017

EEJET

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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...

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Section: Discussion Of the Results Of Determining Optimal Transformatmentioning

confidence: 99%

Section: Materials and Methods Of Transformers Diagnostic Studymentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Determination of optimal transformation ratios of power system transformers in conditions of incomplete information regarding the values of diagnostic parameters

Rubanenko

Kazmiruk

Bandura

et al. 2017

EEJET

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show abstract

“…Most often, in the further analysis, the parameters are used as reference. According to his idea, KM is close to the geometrical programming [3]. This use of duality of optimization problems is the replacement of the direct problem for the corresponding dual.…”

Section: Introductionmentioning

confidence: 99%

Determination of Optimal Transformation Ratios of Power System Transformers in Conditions of Incomplete Information Regarding the Values of Diagnostic Parameters

Demianovych¹,

Evgeniovich²,

Oleksandrivna³

2020

Fuzzy Logic

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On the base of damage rate analysis of power transformers and methods of electrical energy system (EES) modes control the necessity of using the results of online diagnostics of LTC transformers not only for determinations of the expending of further operation or equipment repair but also for calculation of optimal transformation coefficients (with account of the suggested RRCT) for their application in the process of modes control has been proved. Improved method of determination of control action, realized by the LTC transformers by means of comparative analysis of the results calculation of EES modes with quasi resistances of the circuit branches. Such peculiarity of the suggested method of determination of control actions by LTC transformers, as the account of RRCT, in the process of EES mode control provides such advantages as reduction of the damage rate of the equipment, reduction of active power losses in EES. Due to the peculiarities of the method of determination of control actions by LTC transformers, with the account of their technical state, perspectives of the development and introduction in EES modern microprocessor-based systems of automatic control of transformers LTC open.

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Optimal control of mutual impact of electric grids for the reduction of their electric energy losses

Лежнюк

Rubanenko

Kylymchuk

2014

EEJET

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Розглянуто математичні моделі й алгоритми визначення втрат електроенергії в неоднорідних електричних мережах, викликаних їх взаємовпливом. Показано спосіб зменшення цих втрат за допомогою лінійних регуляторів, встановлених в мережі нижчої напруги. Запропоновано метод визначення оптимального місця встановлення цих пристроїв Ключові слова: взаємовплив електричних мереж, додаткові втрати електроенергії, керування потоками потужності, лінійні регулятори, крос-трансформатор Рассмотрено математические модели и алгоритмы определения потерь электроэнергии в неоднородных электрических сетях, вызванных их взаимовлиянием. Показан способ уменьшения этих потерь с помощью линейных регуляторов, установленных в электрических сетях низшего напряжения. Предложен метод определения оптимального места установки этих устройств Ключевые слова: взаимовлияние электрических сетей, дополнительные потери электроэнергии, управление потоками мощности, линейные регуляторы, кросс-трансформатор

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Transformer use for active power flow control in the electric power system

Cited by 3 publications

References 0 publications

Determination of optimal transformation ratios of power system transformers in conditions of incomplete information regarding the values of diagnostic parameters

Determination of optimal transformation ratios of power system transformers in conditions of incomplete information regarding the values of diagnostic parameters

Determination of Optimal Transformation Ratios of Power System Transformers in Conditions of Incomplete Information Regarding the Values of Diagnostic Parameters

Optimal control of mutual impact of electric grids for the reduction of their electric energy losses

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