Physical Modeling of Power Unit in Power Plant with Auxiliary Transformer

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dc.citation.epage22
dc.citation.issue1
dc.citation.spage15
dc.contributor.affiliationНаціональний університет “Львівська політехніка”
dc.contributor.affiliationLviv Polytechnic National University
dc.contributor.authorЛисяк, Георгій
dc.contributor.authorПастух, Олена
dc.contributor.authorХарчишин, Богдан
dc.contributor.authorLysiak, Heorhiy
dc.contributor.authorPastukh, Olena
dc.contributor.authorKharchyshyn, Bohdan
dc.coverage.placenameЛьвів
dc.date.accessioned2020-02-18T10:50:54Z
dc.date.available2020-02-18T10:50:54Z
dc.date.created2019-02-26
dc.date.issued2019-02-26
dc.description.abstractПоказано варіант схеми першого ступеня трансформації системи живлення власних потреб енергоблоку (ЕБ). Електропостачання приймачів власних потреб здійснюється від генератора через робочий та додатковий робочий трансформатори власних потреб (ДРТВП). Спосіб увімкнення ДРТВП забезпечує його роботу в режимі джерела заданого навантаженням ЕБ струму. Проведено експерименти на статичній фізичній моделі фрагмента схеми системи живлення власних потреб із ДРТВП. Підтверджено, що її природні властивості, на відміну від традиційних схем, забезпечують під час нормальних режимів, режимів зовнішніх коротких замикань рівень напруги на шинах власних потреб, достатній для надійної роботи їх електроприймачів. Доведено можливість ефективного проведення досліджень зі застосуванням відповідних математичних і цифрових моделей, підтверджено високу адекватність одержуваних результатів.
dc.description.abstractThe article shows the option of the first degree transformation scheme in auxiliary power supply systems of the power unit (PU). The power supply to the auxiliary receivers is carried out from the generator through the working and additional working auxiliary transformers (AAT). The method of switching on the latter one provides its operation in the source mode set by the PU current load. Experiments were carried out on a static physical model of the scheme fragment of the auxiliary power supply system with an AAT. It is confirmed that its natural properties, in contrast to the traditional schemes, provide during the normal modes, modes of external short circuits the level of voltage on the busbars, sufficient for the reliable operation of their electrical receivers. The possibility of effective research with the use of appropriate mathematical and digital models has been proved. The high adequacy of the results has been confirmed.
dc.format.extent15-22
dc.format.pages8
dc.identifier.citationLysiak H. Physical Modeling of Power Unit in Power Plant with Auxiliary Transformer / Heorhiy Lysiak, Olena Pastukh, Bohdan Kharchyshyn // Energy engineering and control systems. — Львів : Lviv Politechnic Publishing House, 2019. — Vol 5. — No 1. — P. 15–22.
dc.identifier.citationenLysiak H. Physical Modeling of Power Unit in Power Plant with Auxiliary Transformer / Heorhiy Lysiak, Olena Pastukh, Bohdan Kharchyshyn // Energy engineering and control systems. — Lviv Politechnic Publishing House, 2019. — Vol 5. — No 1. — P. 15–22.
dc.identifier.urihttps://ena.lpnu.ua/handle/ntb/45656
dc.language.isoen
dc.publisherLviv Politechnic Publishing House
dc.relation.ispartofEnergy engineering and control systems, 1 (5), 2019
dc.relation.references1. Patent No. 39640A.Electricity auxiliary supply system of the power plant power unit / H. M. Lysiak, A. A. Malinovskyy, L. O. Nykonets. – Bulletin No 5. – 2001.(in Ukrainian)
dc.relation.references2. Lysiak H. M., Malinovsky A. A., Pastukh O. R. The method of selecting the main parameters of the scheme of increased reliability of block power plants from the conditions for maintaining the desired voltage level on the buses of own needs during external three-phase short circuits // Technical electrodynamics. – 2000. No. 4. – P. 51–55. (in Ukrainian)
dc.relation.references3. Lysiak H. M., Pastukh O.Operating States and Characteristics of Power Plant Unit Comprising Additional Operating Auxiliaries Transformer // Proceedings of Vinnytsia Polytechnic Institute. – 2016. No. 2 (125). – p. 116–121. (in Ukrainian)
dc.relation.references4. Lysiak H. M., Pastukh O. R., Ravlyk O. M. Transient processes during external short circuits of a power unit with an additional working transformer of own needs // Proceedings of Lviv Polytechnic National University – Lviv. 2010. – No. 671. – p. 51–57. (in Ukrainian)
dc.relation.references5. Lysiak H. M., Pastukh O. R., Ravlyk O. M. External short circuit modes of the unit with an additional working transformer of own needs // Proceedings of Lviv Polytechnic National University. – 2009. – No. 654.–p. 125–132. (in Ukrainian)
dc.relation.references6. Lysiak H. M., Pastukh O. R. Estimation of voltage levels during the established modes of power units with an additional working transformer for own needs // Proceedings of Lviv Polytechnic National University “Electric power and electromechanical systems”. – 2008. No. 615. p. 58–64. (in Ukrainian)
dc.relation.references7. Lysiak H. M.,Pastukh O. R. Estimation of the voltage level range of change on auxiliary busbars on power units increased reliability circuit schemes in external three-phase short circuits// Proceedings of Lviv Polytechnic National University “Electric power and electromechanical systems”. – Lviv. – 2001. No. 435. – p. 77–84. (in Ukrainian)
dc.relation.references8. Lysiak H. M., Pastukh O. R., Skrypnyk O. I., Konoval V. S. Computer simulation of established modes of power generators with an additional working transformer of own needs// Proceedings of Lviv Polytechnic National University. – 2003. – No. 487. – p. 81–88. (in Ukrainian)
dc.relation.references9. O. Skrypnyk. DAKAR – computing complex of the analysis of modes and processes of electric power systems // Technical electrodynamics. 1998. – Special issue – p. 56–61. (in Ukrainian)
dc.relation.references10. Ravlyk A. Digital complex for modeling of transient processes in electric circuits / A. Ravlyk, T. Grechyn. // Mathematical Methods in Electric Power Engineering: III Symposium. – Zakopane. Poland. – 1993. – p. 17–20.
dc.relation.references11. Burshtynsky M. V., Hay M. V. Devices of protection and control in low-voltage electrical installations: course book / M. V. Burshtynsky, M. V. Hay – 3rd edition supplemented and redone – Lviv Polytechnic National University, 2011 – p. 308. (in Ukrainian)
dc.relation.references12. Guk Y. B., Kobzhuv V. M., Chernovetz A. K. Installation, design and operation of power supply schemes for own needs of nuclear power plants. – Moscow: Energoatomizdat.1991. – p. 296. (in Russian)
dc.relation.referencesen1. Patent No. 39640A.Electricity auxiliary supply system of the power plant power unit, H. M. Lysiak, A. A. Malinovskyy, L. O. Nykonets, Bulletin No 5, 2001.(in Ukrainian)
dc.relation.referencesen2. Lysiak H. M., Malinovsky A. A., Pastukh O. R. The method of selecting the main parameters of the scheme of increased reliability of block power plants from the conditions for maintaining the desired voltage level on the buses of own needs during external three-phase short circuits, Technical electrodynamics, 2000. No. 4, P. 51–55. (in Ukrainian)
dc.relation.referencesen3. Lysiak H. M., Pastukh O.Operating States and Characteristics of Power Plant Unit Comprising Additional Operating Auxiliaries Transformer, Proceedings of Vinnytsia Polytechnic Institute, 2016. No. 2 (125), p. 116–121. (in Ukrainian)
dc.relation.referencesen4. Lysiak H. M., Pastukh O. R., Ravlyk O. M. Transient processes during external short circuits of a power unit with an additional working transformer of own needs, Proceedings of Lviv Polytechnic National University – Lviv. 2010, No. 671, p. 51–57. (in Ukrainian)
dc.relation.referencesen5. Lysiak H. M., Pastukh O. R., Ravlyk O. M. External short circuit modes of the unit with an additional working transformer of own needs, Proceedings of Lviv Polytechnic National University, 2009, No. 654.–p. 125–132. (in Ukrainian)
dc.relation.referencesen6. Lysiak H. M., Pastukh O. R. Estimation of voltage levels during the established modes of power units with an additional working transformer for own needs, Proceedings of Lviv Polytechnic National University "Electric power and electromechanical systems", 2008. No. 615. p. 58–64. (in Ukrainian)
dc.relation.referencesen7. Lysiak H. M.,Pastukh O. R. Estimation of the voltage level range of change on auxiliary busbars on power units increased reliability circuit schemes in external three-phase short circuits// Proceedings of Lviv Polytechnic National University "Electric power and electromechanical systems", Lviv, 2001. No. 435, p. 77–84. (in Ukrainian)
dc.relation.referencesen8. Lysiak H. M., Pastukh O. R., Skrypnyk O. I., Konoval V. S. Computer simulation of established modes of power generators with an additional working transformer of own needs// Proceedings of Lviv Polytechnic National University, 2003, No. 487, p. 81–88. (in Ukrainian)
dc.relation.referencesen9. O. Skrypnyk. DAKAR – computing complex of the analysis of modes and processes of electric power systems, Technical electrodynamics. 1998, Special issue – p. 56–61. (in Ukrainian)
dc.relation.referencesen10. Ravlyk A. Digital complex for modeling of transient processes in electric circuits, A. Ravlyk, T. Grechyn., Mathematical Methods in Electric Power Engineering: III Symposium, Zakopane. Poland, 1993, p. 17–20.
dc.relation.referencesen11. Burshtynsky M. V., Hay M. V. Devices of protection and control in low-voltage electrical installations: course book, M. V. Burshtynsky, M. V. Hay – 3rd edition supplemented and redone – Lviv Polytechnic National University, 2011 – p. 308. (in Ukrainian)
dc.relation.referencesen12. Guk Y. B., Kobzhuv V. M., Chernovetz A. K. Installation, design and operation of power supply schemes for own needs of nuclear power plants, Moscow: Energoatomizdat.1991, p. 296. (in Russian)
dc.rights.holder© Національний університет “Львівська політехніка”, 2019
dc.subjectелектростанція
dc.subjectтрансформатор власних потреб
dc.subjectенергоблок
dc.subjectсхема
dc.subjectpower plant
dc.subjectauxiliary transformer
dc.subjectpower unit
dc.subjectdiagram
dc.titlePhysical Modeling of Power Unit in Power Plant with Auxiliary Transformer
dc.title.alternativeФізичне моделювання енергоблоку електростанції з додатковим робочим трансформатором власних потреб
dc.typeArticle

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Energy Engineering and Control Systems. – 2019. – Vol. 5, No. 1