The behavior of single-shaft combined cycle gas turbine units at frequency drop in the connected grid
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
The behavior of single-shaft combined cycle gas turbine units at frequency drop in the connected grid
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| Автор |
Silbermann, V.
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| Тематика |
CCGT UNIT
DISTURBANCES IN THE HV GRID FREQUENCY DROP SSS CLUTCH STEAM TURBINE ACCELERATION SURGE PROTECTION WATER PUMPS’ DRIVES |
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| Описание |
In the last 15 years many companies have developed single-shaft combined cycle gas turbine (CCGT) units having one generator, which is coupled to common single shaft of gas turbine (GT) and steam turbine (ST) via a special elaborated synchro-self-shifting (SSS) clutch. This clutch connects automatically the drive of the ST at one end of the generator to complement the drive of the GT at the other end of the generator. Such a technical solution, in comparison to previous ones, allows economizing on one generator circuit breaker (GCB) as well as the use of a two-winding transformer instead of a three-winding transformer. This scheme of single-shaft CCGT units is taking place in many countries, but cases of tripping of such units by surge protection of GT have been observed in any power plants (PP). All such trippings were accompanied by frequency drop in the high voltage (HV) grid, to which these units were connected, although these drops were within the permissible limits for the CCGT units. This paper reports the results of investigating one of these cases of tripping, discusses the possible cause of these incidents and elaborates on some measures to prevent such trippings in the future.
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| Дата |
2018-11-21T12:57:00Z
2018-11-21T12:57:00Z 2018 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Silbermann V. The behavior of single-shaft combined cycle gas turbine units at frequency drop in the connected grid / Viktor Silbermann // International Journal of Energy Production and Management. — 2018. — Vol. 3. Iss. 3. — P. 237-243.
2056-3272 (paper format) 2056-3280 (online) http://elar.urfu.ru/handle/10995/64939 https://elibrary.ru/item.asp?id=36430476 10.2495/EQ-V3-N3-237-243 |
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| Язык |
en
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| Связанные ресурсы |
International Journal of Energy Production and Management. 2018. Vol. 3. Iss. 3
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| Формат |
applictaion/pdf
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| Издатель |
Ural Federal University
WIT Press Уральский федеральный университет |
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