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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Autores principales:	V. G. Kuznetsov, Yu. I. Tugay, V. V. Kuchanskiy, Yu. G. Lyhovyd, V. A. Melnichuk
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2018
Materias:	main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/017d8d198e08493294ea1caa6d0facef
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spelling	oai:doaj.org-article:017d8d198e08493294ea1caa6d0facef2021-12-02T18:09:16ZTHE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK10.20998/2074-272X.2018.2.122074-272X2309-3404https://doaj.org/article/017d8d198e08493294ea1caa6d0facef2018-04-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/2074-272X.2018.2.12/123312https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404Purpose. 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.V. G. KuznetsovYu. I. TugayV. V. KuchanskiyYu. G. LyhovydV. A. MelnichukNational Technical University "Kharkiv Polytechnic Institute"articlemain electric networkextra high voltage transmission lineresonant overvoltagenonsinusoidal modecontrolled switchingElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 2, Pp 69-73 (2018)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	main electric network extra high voltage transmission line resonant overvoltage nonsinusoidal mode controlled switching Electrical engineering. Electronics. Nuclear engineering TK1-9971 V. G. Kuznetsov Yu. I. Tugay V. V. Kuchanskiy Yu. G. Lyhovyd V. A. Melnichuk THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK
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.
format	article
author	V. G. Kuznetsov Yu. I. Tugay V. V. Kuchanskiy Yu. G. Lyhovyd V. A. Melnichuk
author_facet	V. G. Kuznetsov Yu. I. Tugay V. V. Kuchanskiy Yu. G. Lyhovyd V. A. Melnichuk
author_sort	V. G. Kuznetsov
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
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2018
url	https://doaj.org/article/017d8d198e08493294ea1caa6d0facef
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THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK

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