TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING

Purpose. Research of the TGV-200 turbogenerator rotor heating in case of rotor winding damages, which occur as a result of prolonged operation of the turbogenerator, namely - clogging of the ventilation channels of the rotor winding and the occurrence of short circuits of the rotor windings. Particu...

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Autores principales:	Yu. M. Vaskovskyi, O. A. Geraskin
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2020
Materias:	turbogenerator rotor winding temperature temperature gradient short circuit clogging of cooling channels excitation forcing Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/4373b31e34d6410c96e52cfcdeac939b
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spelling	oai:doaj.org-article:4373b31e34d6410c96e52cfcdeac939b2021-12-02T18:42:21ZTURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING10.20998/2074-272X.2020.1.022074-272X2309-3404https://doaj.org/article/4373b31e34d6410c96e52cfcdeac939b2020-02-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/2074-272X.2020.1.02/196284https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404Purpose. Research of the TGV-200 turbogenerator rotor heating in case of rotor winding damages, which occur as a result of prolonged operation of the turbogenerator, namely - clogging of the ventilation channels of the rotor winding and the occurrence of short circuits of the rotor windings. Particular attention is paid to heating during short-term increasing of the excitation current, which is performed to keep the generator in synchronous mode of operation. Methods. Field mathematical models are used. Results. It is determined that the clogging of the rotor winding ducts has a greater effect on the rotor heating compared to the short circuits of the individual windings of the rotor winding. It was defined that increasing of the excitation current within the limits regulated by the current standards of the turbogenerators operation becomes impossible with clogging of a small number of ventilation channels of the rotor winding, which impairs the efficiency of the turbogenerator and requires its output to repair. Scientific novelty. A mathematical model of rotor heating is developed in case of typical damages of the rotor winding. Practical value. The areas in the rotor where the temperatures and temperature gradients reach the highest values was determined, which allows to recommend the locations of the optimal temperature sensors placements. Yu. M. VaskovskyiO. A. GeraskinNational Technical University "Kharkiv Polytechnic Institute"articleturbogeneratorrotor windingtemperaturetemperature gradientshort circuitclogging of cooling channelsexcitation forcingElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 1, Pp 10-15 (2020)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	turbogenerator rotor winding temperature temperature gradient short circuit clogging of cooling channels excitation forcing Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	turbogenerator rotor winding temperature temperature gradient short circuit clogging of cooling channels excitation forcing Electrical engineering. Electronics. Nuclear engineering TK1-9971 Yu. M. Vaskovskyi O. A. Geraskin TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING
description	Purpose. Research of the TGV-200 turbogenerator rotor heating in case of rotor winding damages, which occur as a result of prolonged operation of the turbogenerator, namely - clogging of the ventilation channels of the rotor winding and the occurrence of short circuits of the rotor windings. Particular attention is paid to heating during short-term increasing of the excitation current, which is performed to keep the generator in synchronous mode of operation. Methods. Field mathematical models are used. Results. It is determined that the clogging of the rotor winding ducts has a greater effect on the rotor heating compared to the short circuits of the individual windings of the rotor winding. It was defined that increasing of the excitation current within the limits regulated by the current standards of the turbogenerators operation becomes impossible with clogging of a small number of ventilation channels of the rotor winding, which impairs the efficiency of the turbogenerator and requires its output to repair. Scientific novelty. A mathematical model of rotor heating is developed in case of typical damages of the rotor winding. Practical value. The areas in the rotor where the temperatures and temperature gradients reach the highest values was determined, which allows to recommend the locations of the optimal temperature sensors placements.
format	article
author	Yu. M. Vaskovskyi O. A. Geraskin
author_facet	Yu. M. Vaskovskyi O. A. Geraskin
author_sort	Yu. M. Vaskovskyi
title	TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING
title_short	TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING
title_full	TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING
title_fullStr	TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING
title_full_unstemmed	TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING
title_sort	turbogenerator rotor heating in presence of rotor winding defects and excitation current forcing
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2020
url	https://doaj.org/article/4373b31e34d6410c96e52cfcdeac939b
work_keys_str_mv	AT yumvaskovskyi turbogeneratorrotorheatinginpresenceofrotorwindingdefectsandexcitationcurrentforcing AT oageraskin turbogeneratorrotorheatinginpresenceofrotorwindingdefectsandexcitationcurrentforcing
_version_	1718377735610433536

TURBOGENERATOR ROTOR HEATING IN PRESENCE OF ROTOR WINDING DEFECTS AND EXCITATION CURRENT FORCING

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