THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK
Purpose. The resonant overvoltage arises in main electrical networks as a result of random coincidence of some parameters of circuit and its mode and it may exist for a relatively long time. Therefore, the traditional means of limitation of short duration commutation surges are not effective in this...
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| Дата: | 2018 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English Ukrainian |
| Опубліковано: |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2018
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| Онлайн доступ: | http://eie.khpi.edu.ua/article/view/2074-272X.2018.2.12 |
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| Назва журналу: | Electrical Engineering & Electromechanics |
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Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-128188 |
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eiekhpieduua-article-1281882018-04-18T10:13:07Z THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK РЕЗОНАНСНІ ПЕРЕНАПРУГИ У НЕСИНУСОЇДНОМУ РЕЖИМІ МАГІСТРАЛЬНОЇ ЕЛЕКТРИЧНОЇ МЕРЕЖІ Kuznetsov, V. G. Tugay, Yu. I. Kuchanskiy, V. V. Lyhovyd, Yu. G. Melnichuk, V. A. main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching 621.311.1 магістральна електрична мережа лінія електропередачі надвисокої напруги резонансні перенапруги несннусоїдний режим керовані комутації 621.311.1 Purpose. The resonant overvoltage arises in main electrical networks as a result of random coincidence of some parameters of circuit and its mode and it may exist for a relatively long time. Therefore, the traditional means of limitation of short duration commutation surges are not effective in this case. The study determines conditions of appearance and development of non-sinusoidal mode after switching idle autotransformer to the overhead line of extra high voltage. The purpose of the paper is to choice measures for prevention overvoltage, too. Methodology. The study has used the result of extra high voltage line testing, the methods of electric circuit theory and the simulation in the MATLAB & Simulink package. Results. The simulation model of the extra high voltage transmission line for the study of resonant non-sinusoidal overvoltage is developed. The conditions for the appearance of resonant circuits in the real power line are found and harmonic frequency in which overvoltage arises are obtained. The study proposes using the controlled switching device as a measure to prevent resonance surges and determines the appropriate settings. Originality. The expression for calculation of resonant length of extra high voltage line was derived. The special investigation of processes in the resonant circuit of the extra high voltage transmission line for higher harmonic components of voltage is carried out. The program of switching for control apparatus that prevents non-sinusoidal overvoltage has been developed at the first time. Practical value. The using of the proposed settings of controlled switchgear will prevent the occurrence of hazardous resonant surge on higher harmonic components of voltage. Резонансні перенапруги в магістральних електричних мережах виникають внаслідок випадкового збігу параметрів схеми та режиму і можуть існувати порівняно тривалий час. Тому традиційні засоби для обмеження короткочасних комутаційних перенапруг в даному випадку не є ефективними. Метою статті є дослідження перенапруг, що виникають у магістральних електричних мережах на вищих гармонійних складових. Для цього використовувалися імітаційне та математичне моделювання в середовищі MATLAB&Simulink . Показано, що несинусоїдальні спотворення виникають при ввімкненні лінії електропередачі на невантажений автотрансформатор. Визначені частоти, при яких виникають перенапруги на вищих гармонійних складових. Запропоновано використання пристрою керованої комутації для запобігання перенапругам даного класу і розроблена модель для визначення відповідних налаштувань. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2018-04-10 Article Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2018.2.12 10.20998/2074-272X.2018.2.12 Electrical Engineering & Electromechanics; No. 2 (2018); 69-73 Электротехника и Электромеханика; № 2 (2018); 69-73 Електротехніка і Електромеханіка; № 2 (2018); 69-73 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/2074-272X.2018.2.12/123312 http://eie.khpi.edu.ua/article/view/2074-272X.2018.2.12/123313 Copyright (c) 2018 V. G. Kuznetsov, Yu. I. Tugay, V. V. Kuchanskiy, Yu. G. Lyhovyd, V. A. Melnichuk https://creativecommons.org/licenses/by-nc/4.0 |
| institution |
Electrical Engineering & Electromechanics |
| baseUrl_str |
|
| datestamp_date |
2018-04-18T10:13:07Z |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching 621.311.1 |
| spellingShingle |
main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching 621.311.1 Kuznetsov, V. G. Tugay, Yu. I. Kuchanskiy, V. V. Lyhovyd, Yu. G. Melnichuk, V. A. THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK |
| topic_facet |
main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching 621.311.1 магістральна електрична мережа лінія електропередачі надвисокої напруги резонансні перенапруги несннусоїдний режим керовані комутації 621.311.1 |
| format |
Article |
| author |
Kuznetsov, V. G. Tugay, Yu. I. Kuchanskiy, V. V. Lyhovyd, Yu. G. Melnichuk, V. A. |
| author_facet |
Kuznetsov, V. G. Tugay, Yu. I. Kuchanskiy, V. V. Lyhovyd, Yu. G. Melnichuk, V. A. |
| author_sort |
Kuznetsov, V. G. |
| title |
THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK |
| title_short |
THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK |
| title_full |
THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK |
| title_fullStr |
THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK |
| title_full_unstemmed |
THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK |
| title_sort |
resonant overvoltage in non-sinusoidal mode of main electric network |
| title_alt |
РЕЗОНАНСНІ ПЕРЕНАПРУГИ У НЕСИНУСОЇДНОМУ РЕЖИМІ МАГІСТРАЛЬНОЇ ЕЛЕКТРИЧНОЇ МЕРЕЖІ |
| description |
Purpose. The resonant overvoltage arises in main electrical networks as a result of random coincidence of some parameters of circuit and its mode and it may exist for a relatively long time. Therefore, the traditional means of limitation of short duration commutation surges are not effective in this case. The study determines conditions of appearance and development of non-sinusoidal mode after switching idle autotransformer to the overhead line of extra high voltage. The purpose of the paper is to choice measures for prevention overvoltage, too. Methodology. The study has used the result of extra high voltage line testing, the methods of electric circuit theory and the simulation in the MATLAB & Simulink package. Results. The simulation model of the extra high voltage transmission line for the study of resonant non-sinusoidal overvoltage is developed. The conditions for the appearance of resonant circuits in the real power line are found and harmonic frequency in which overvoltage arises are obtained. The study proposes using the controlled switching device as a measure to prevent resonance surges and determines the appropriate settings. Originality. The expression for calculation of resonant length of extra high voltage line was derived. The special investigation of processes in the resonant circuit of the extra high voltage transmission line for higher harmonic components of voltage is carried out. The program of switching for control apparatus that prevents non-sinusoidal overvoltage has been developed at the first time. Practical value. The using of the proposed settings of controlled switchgear will prevent the occurrence of hazardous resonant surge on higher harmonic components of voltage. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
| publishDate |
2018 |
| url |
http://eie.khpi.edu.ua/article/view/2074-272X.2018.2.12 |
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