Assessment of Ferroresonance Processes in Schemes of 6–35 kV Electrical Grids on the Basis of Reliability Analysis

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dc.citation.epage145
dc.citation.issue2
dc.citation.spage137
dc.contributor.affiliationНаціональний університет “Львівська політехніка”
dc.contributor.affiliationLviv Polytechnic National University
dc.contributor.authorБахор, Зіновій
dc.contributor.authorЯцейко, Андрій
dc.contributor.authorФеренсович, Роман
dc.contributor.authorBakhor, Zinovii
dc.contributor.authorYatseiko, Andrii
dc.contributor.authorFerensovych, Roman
dc.coverage.placenameЛьвів
dc.coverage.placenameLviv
dc.date.accessioned2023-09-18T07:27:28Z
dc.date.available2023-09-18T07:27:28Z
dc.date.created2021-06-01
dc.date.issued2021-06-01
dc.description.abstractОб’єктом дослідження є вибір оптимального технічного рішення стосовно недопущення розвитку чи тривалого існування ферорезонансних процесів у розподільних електричних мережах 6–35 кВ, які працюють у режимі ізольованої нейтралі. На ймовірність виникнення та тривалість перебігу ферорезонансних процесів впливає багато чинників: режим заземлення нейтралі мережі, її ємнісний струм замикання на землю мережі, тип та кількість трансформаторів напруги тощо. За результатами дослідження визначено значення ємнісних струмів замикання на землю, за яких у розподільчих електричних мережах 6–35 кВ виникають стійкі ферорезонансні процеси. Величини ємнісних струмів замикання на землю мережі є визначальними для виникнення стійкого ферорезонансу, але на характер його перебігу також впливають додаткові випадкові фактори, такі як: напруга мережі, стан ізоляції ліній мережі, навантаження вторинної обмотки трансформатора напруги тощо. Тому було розроблено модель оцінювання частоти появи стійкого ферорезонансного процесу в мережі на основі аналізу надійності фізичних об’єктів в умовах зовнішніх діянь та алгоритм визначення найбільш небезпечних конфігурацій схем електричних мереж стосовно пошкодження трансформаторів напруги за частотою появи в них стійкого ферорезонансного процесу та вибір оптимальних заходів із запобігання пошкодженню трансформаторів напруги.
dc.description.abstractThe object of research is the choice of the optimal technical solution to prevent the development or the long existence of ferroresonance processes in electrical distribution grids of 6–35 kV, which are operated in isolated neutral mode. A lot of factors such as the grounding mode of a grid neutral, its capacitive current of a short circuit to the ground, the type and number of voltage transformers (VT) etc. influence on the probability of occurrence and duration of ferroresonance processes. According to the results of the research, the values of capacitive currents of a short circuit to the ground at which stable ferroresonance processes occur in electrical distribution grids of 6–35 kV are determined. The values of capacitive earth fault currents of a grid are decisive for the occurrence of a stable ferroresonance, but the nature of its flow is also influenced by additional accidental factors, such as: a grid voltage, an insulation status of power lines, a load of the secondary winding of voltage transformer etc. Therefore, a model for assessment the frequency of occurrence of a stable ferroresonance process in the electrical grid based on the analysis of the reliability of physical objects in the conditions of external actions was developed. In addition, an algorithm for determining the most dangerous scheme configurations of electrical grids concerning to a VT damage by the frequency of occurrence of a stable ferroresonance process in them and the choice of optimal solutions to prevent the VT damage were proposed.
dc.format.extent137-145
dc.format.pages9
dc.identifier.citationBakhor Z. Assessment of Ferroresonance Processes in Schemes of 6–35 kV Electrical Grids on the Basis of Reliability Analysis / Zinovii Bakhor, Andrii Yatseiko, Roman Ferensovych // Energy Engineering and Control Systems. — Lviv : Lviv Politechnic Publishing House, 2020. — Vol 6. — No 2. — P. 137–145.
dc.identifier.citationenBakhor Z. Assessment of Ferroresonance Processes in Schemes of 6–35 kV Electrical Grids on the Basis of Reliability Analysis / Zinovii Bakhor, Andrii Yatseiko, Roman Ferensovych // Energy Engineering and Control Systems. — Lviv : Lviv Politechnic Publishing House, 2020. — Vol 6. — No 2. — P. 137–145.
dc.identifier.urihttps://ena.lpnu.ua/handle/ntb/60123
dc.language.isoen
dc.publisherВидавництво Львівської політехніки
dc.publisherLviv Politechnic Publishing House
dc.relation.ispartofEnergy Engineering and Control Systems, 2 (6), 2020
dc.relation.references[1] Zhurakhivskyi A. V., Bakhor Z. M., Hanus O. I., Hovorov P. P., YatseikoA. Ya. “Ferroresonance processes and protection of voltage transformers in the electrical grids of 6–35 kV: monograph”, Lviv Polytechnic Publishing House, Lviv, 2019, 324 p. (in Ukrainian)
dc.relation.references[2] Zhurakhivskyi A. V., Kens Yu. A., A. Ya. Yatseiko, Masliak R. Ya. “Ferroresonance processes in 10 kV power grids with different types of voltage transformers”, Technical Electrodynamics, No. 2, 2010, pp. 73–77. (in Ukrainian)
dc.relation.references[3] Zhurakhivskyi A. V., Yatseiko A. Ya. , Masliak R. Ya. “Operation modes of voltage transformers in the electrical grids with isolated neutral”, Elektroinform, No. 1, 2009, pp. 8–11. (in Ukrainian)
dc.relation.references[4] Zhurakhivskyi A. V., Kens Yu. A., Yatseiko A. Ya., Masliak R. Ya. “Protection of 6–35 kV electrical grids from ferroresonance processes”, Technical Electrodynamics, No. 5, 2013, pp. 70–76. (in Ukrainian)
dc.relation.references[5] Saenko Ju. L., Popov A. S. “Investigation of the causes of damage of voltage transformers for insulation monitoring”, Power saving. Power engineering. Energy audit, Kharkiv, No. 7(89), 2011, pp. 59–66. (in Russian)
dc.relation.references[6] Zhurakhivskyi A. V., Yatseiko A. Ya., Masliak R. Ya. “Ferroresonance processes at the network frequency and ranges of attenuating resistors for its failure”, Bulletin of the Lviv Polytechnic National University: Electric power and electromechanical systems, No. 834, 2015, pp. 20–25. (in Ukrainian)
dc.relation.references[7] Ganus A. I., StarkovK. A. “Damageability of voltage transformers in regional electrical grids of AK “Kharkovoblenergo” and measures to reduce it”, Light technics and electrical power engineering, Kharkiv, No. 1, 2003, pp. 76–81. (in Russian)
dc.relation.references[8] A. I. Ganus, K. A. Starkov, “Influence of conditions of transient processes in electrical grids of 6–10 kV on the nature of damage of voltage transformers”, Power engineering and electrification, No. 2, 2006, pp. 5–11. (in Russian)
dc.relation.references[9] Emin Z., Zahavi B., Auckland D., Tong Y. “Ferroresonance in electromagnetic voltage transformers: a study based on nonlinear dynamics”, IEEE Proc. on Generation, Transmission, Distribution, Vol. 144, 1997, pp. 383–387.
dc.relation.references[10] “Rules of arrangement of electrical installations. Official publication. Ministry of Energy of Ukraine”, Publishing House “Fort”, Kharkiv, 2017, 760 p. (in Ukrainian)
dc.relation.references[11] Zhurakhivskyi A. V., Kens Yu. A., Medynskyi R. V., Zasidkovych N. R., “Installation and testing of non-resonant voltage transformer of 6–10 kV”, Power engineering and electrification, No. 8, 2001, pp. 17–22. (in Ukrainian)
dc.relation.references[12] Zhurakhivskyi A. V., Kinash B. M., Yatseiko A. Ya., Masliak R. Ya. “Reliability analysis of the operation of voltage transformers in the conditions of ferroresonant actions”, Technical Electrodynamics, No. 5, 2010, pp. 47–51. (in Ukrainian)
dc.relation.references[13] T. Van Craenenbroeck (2003) Discussion of Modeling and Analysis Guidelines for Slow Transients. III. The Study of Ferroresonance. IEEE Transactions on Power Delivery, 18(4), 1592. doi: 10.1109/TPWRD.2003.810943.
dc.relation.references[14] Arroyo, A., Martinez, R., Manana, M., Pigazo, A., Minguez, R. (2019) Detection of Ferroresonance Occurrence in Inductive Voltage Transformersthrough Vibration Analysis. International Journal of Electrical Power &Energy Systems, 106, 294–300. https://doi.org/10.1016/j.ijepes.2018.10.011.
dc.relation.references[15] Enrique, R., Pineda, P., Rodrigues, R., Aguila Tellez, A. (2018) Analysis and Simulation of Ferroresonance in Power Transformers using Simulink. IEEE Latin America Transactions, 16(2), 460–466. doi: 10.1109/TLA.2018.8327400.
dc.relation.references[16] Abdelazim, T., Dionise, T. J., Yanniello, R. (2016) A Case Study of Voltage Transformer Failures in a Modern Data Center: Analysis, Mitigation, and Solution Implementation. IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS), 1–11. doi: 10.1109/ICPS.2016.7490257.
dc.relation.references[17] Abdelazim, T., Dionise, T. J., Yanniello, R. (2016) Protecting Voltage Transformers from Switching Induced Transients and Ferroresonance. 2016 IEEE-IAS/PCA Cement Industry Technical Conference, Dallas, TX, 1–17. doi: 10.1109/CITCON.2016.7742671.
dc.relation.referencesen[1] Zhurakhivskyi A. V., Bakhor Z. M., Hanus O. I., Hovorov P. P., YatseikoA. Ya. "Ferroresonance processes and protection of voltage transformers in the electrical grids of 6–35 kV: monograph", Lviv Polytechnic Publishing House, Lviv, 2019, 324 p. (in Ukrainian)
dc.relation.referencesen[2] Zhurakhivskyi A. V., Kens Yu. A., A. Ya. Yatseiko, Masliak R. Ya. "Ferroresonance processes in 10 kV power grids with different types of voltage transformers", Technical Electrodynamics, No. 2, 2010, pp. 73–77. (in Ukrainian)
dc.relation.referencesen[3] Zhurakhivskyi A. V., Yatseiko A. Ya. , Masliak R. Ya. "Operation modes of voltage transformers in the electrical grids with isolated neutral", Elektroinform, No. 1, 2009, pp. 8–11. (in Ukrainian)
dc.relation.referencesen[4] Zhurakhivskyi A. V., Kens Yu. A., Yatseiko A. Ya., Masliak R. Ya. "Protection of 6–35 kV electrical grids from ferroresonance processes", Technical Electrodynamics, No. 5, 2013, pp. 70–76. (in Ukrainian)
dc.relation.referencesen[5] Saenko Ju. L., Popov A. S. "Investigation of the causes of damage of voltage transformers for insulation monitoring", Power saving. Power engineering. Energy audit, Kharkiv, No. 7(89), 2011, pp. 59–66. (in Russian)
dc.relation.referencesen[6] Zhurakhivskyi A. V., Yatseiko A. Ya., Masliak R. Ya. "Ferroresonance processes at the network frequency and ranges of attenuating resistors for its failure", Bulletin of the Lviv Polytechnic National University: Electric power and electromechanical systems, No. 834, 2015, pp. 20–25. (in Ukrainian)
dc.relation.referencesen[7] Ganus A. I., StarkovK. A. "Damageability of voltage transformers in regional electrical grids of AK "Kharkovoblenergo" and measures to reduce it", Light technics and electrical power engineering, Kharkiv, No. 1, 2003, pp. 76–81. (in Russian)
dc.relation.referencesen[8] A. I. Ganus, K. A. Starkov, "Influence of conditions of transient processes in electrical grids of 6–10 kV on the nature of damage of voltage transformers", Power engineering and electrification, No. 2, 2006, pp. 5–11. (in Russian)
dc.relation.referencesen[9] Emin Z., Zahavi B., Auckland D., Tong Y. "Ferroresonance in electromagnetic voltage transformers: a study based on nonlinear dynamics", IEEE Proc. on Generation, Transmission, Distribution, Vol. 144, 1997, pp. 383–387.
dc.relation.referencesen[10] "Rules of arrangement of electrical installations. Official publication. Ministry of Energy of Ukraine", Publishing House "Fort", Kharkiv, 2017, 760 p. (in Ukrainian)
dc.relation.referencesen[11] Zhurakhivskyi A. V., Kens Yu. A., Medynskyi R. V., Zasidkovych N. R., "Installation and testing of non-resonant voltage transformer of 6–10 kV", Power engineering and electrification, No. 8, 2001, pp. 17–22. (in Ukrainian)
dc.relation.referencesen[12] Zhurakhivskyi A. V., Kinash B. M., Yatseiko A. Ya., Masliak R. Ya. "Reliability analysis of the operation of voltage transformers in the conditions of ferroresonant actions", Technical Electrodynamics, No. 5, 2010, pp. 47–51. (in Ukrainian)
dc.relation.referencesen[13] T. Van Craenenbroeck (2003) Discussion of Modeling and Analysis Guidelines for Slow Transients. III. The Study of Ferroresonance. IEEE Transactions on Power Delivery, 18(4), 1592. doi: 10.1109/TPWRD.2003.810943.
dc.relation.referencesen[14] Arroyo, A., Martinez, R., Manana, M., Pigazo, A., Minguez, R. (2019) Detection of Ferroresonance Occurrence in Inductive Voltage Transformersthrough Vibration Analysis. International Journal of Electrical Power &Energy Systems, 106, 294–300. https://doi.org/10.1016/j.ijepes.2018.10.011.
dc.relation.referencesen[15] Enrique, R., Pineda, P., Rodrigues, R., Aguila Tellez, A. (2018) Analysis and Simulation of Ferroresonance in Power Transformers using Simulink. IEEE Latin America Transactions, 16(2), 460–466. doi: 10.1109/TLA.2018.8327400.
dc.relation.referencesen[16] Abdelazim, T., Dionise, T. J., Yanniello, R. (2016) A Case Study of Voltage Transformer Failures in a Modern Data Center: Analysis, Mitigation, and Solution Implementation. IEEE/IAS 52nd Industrial and Commercial Power Systems Technical Conference (I&CPS), 1–11. doi: 10.1109/ICPS.2016.7490257.
dc.relation.referencesen[17] Abdelazim, T., Dionise, T. J., Yanniello, R. (2016) Protecting Voltage Transformers from Switching Induced Transients and Ferroresonance. 2016 IEEE-IAS/PCA Cement Industry Technical Conference, Dallas, TX, 1–17. doi: 10.1109/CITCON.2016.7742671.
dc.relation.urihttps://doi.org/10.1016/j.ijepes.2018.10.011
dc.rights.holder© Національний університет “Львівська політехніка”, 2020
dc.subjectелектрична мережа
dc.subjectферорезонанс
dc.subjectтрансформатор напруги
dc.subjectізольована нейтраль
dc.subjectаналіз надійності
dc.subjectelectrical grid
dc.subjectferroresonance
dc.subjectvoltage transformer
dc.subjectisolated neutral
dc.subjectreliability analysis
dc.titleAssessment of Ferroresonance Processes in Schemes of 6–35 kV Electrical Grids on the Basis of Reliability Analysis
dc.title.alternativeОцінка ферорезонансних процесів у схемах електричних мереж 6–35 кВ на основі аналізу надійності
dc.typeArticle

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Energy Engineering and Control Systems. – 2020. – Vol. 6, No. 2