Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration
This article analyzes the operation of hydro generators based on the operation modes of a hydroelectric power plant operating in the Arctic zone of the Russian Federation. The main load of the hydropower plant is an aluminum smelter. The nonlinear load of the smelter is a powerful source of harmonic...
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MDPI AG
2023
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ftdoajarticles:oai:doaj.org/article:854d6f09ebd548b5b2e6ce7d842b2d81 2023-09-26T15:15:05+02:00 Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration Aleksei S. Karpov Vera V. Yaroshevich Galina P. Fastiy Elizaveta I. Gubskaya 2023-08-01T00:00:00Z https://doi.org/10.3390/app13169152 https://doaj.org/article/854d6f09ebd548b5b2e6ce7d842b2d81 EN eng MDPI AG https://www.mdpi.com/2076-3417/13/16/9152 https://doaj.org/toc/2076-3417 doi:10.3390/app13169152 2076-3417 https://doaj.org/article/854d6f09ebd548b5b2e6ce7d842b2d81 Applied Sciences, Vol 13, Iss 9152, p 9152 (2023) hydropower plant nonlinear load hydro generator torsional and tangential vibration Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 article 2023 ftdoajarticles https://doi.org/10.3390/app13169152 2023-08-27T00:36:12Z This article analyzes the operation of hydro generators based on the operation modes of a hydroelectric power plant operating in the Arctic zone of the Russian Federation. The main load of the hydropower plant is an aluminum smelter. The nonlinear load of the smelter is a powerful source of harmonic disturbances. This load produces current and voltage distortions not only in the electrical networks of the smelter but also in those of the city and in generating voltage busbars of the hydropower plant. As a consequence, higher harmonics cause additional losses in the supply networks and have a negative impact on the hydro generators’ condition. The article analyzes the influence of current impacts of the smelter load on the hydro generators under imbalanced conditions by estimating torsional and tangential vibrations emerging in the generators. The tangential forces of double frequency (100 Hz) have been shown to produce practically no significant vibration displacement when detuning the natural frequency of the basket-type end-winding parts. The values of vibration and surge displacement increase significantly in the near-resonance zone. The intense impact of superimposed surge currents has been shown to result in reduction in the hydraulic turbines’ service life and increase in frequency of repairs. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Applied Sciences 13 16 9152 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
hydropower plant nonlinear load hydro generator torsional and tangential vibration Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
hydropower plant nonlinear load hydro generator torsional and tangential vibration Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Aleksei S. Karpov Vera V. Yaroshevich Galina P. Fastiy Elizaveta I. Gubskaya Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration |
topic_facet |
hydropower plant nonlinear load hydro generator torsional and tangential vibration Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
description |
This article analyzes the operation of hydro generators based on the operation modes of a hydroelectric power plant operating in the Arctic zone of the Russian Federation. The main load of the hydropower plant is an aluminum smelter. The nonlinear load of the smelter is a powerful source of harmonic disturbances. This load produces current and voltage distortions not only in the electrical networks of the smelter but also in those of the city and in generating voltage busbars of the hydropower plant. As a consequence, higher harmonics cause additional losses in the supply networks and have a negative impact on the hydro generators’ condition. The article analyzes the influence of current impacts of the smelter load on the hydro generators under imbalanced conditions by estimating torsional and tangential vibrations emerging in the generators. The tangential forces of double frequency (100 Hz) have been shown to produce practically no significant vibration displacement when detuning the natural frequency of the basket-type end-winding parts. The values of vibration and surge displacement increase significantly in the near-resonance zone. The intense impact of superimposed surge currents has been shown to result in reduction in the hydraulic turbines’ service life and increase in frequency of repairs. |
format |
Article in Journal/Newspaper |
author |
Aleksei S. Karpov Vera V. Yaroshevich Galina P. Fastiy Elizaveta I. Gubskaya |
author_facet |
Aleksei S. Karpov Vera V. Yaroshevich Galina P. Fastiy Elizaveta I. Gubskaya |
author_sort |
Aleksei S. Karpov |
title |
Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration |
title_short |
Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration |
title_full |
Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration |
title_fullStr |
Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration |
title_full_unstemmed |
Electrophysical Method for Identifying the Causes of Excessive Hydro Generator Vibration |
title_sort |
electrophysical method for identifying the causes of excessive hydro generator vibration |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/app13169152 https://doaj.org/article/854d6f09ebd548b5b2e6ce7d842b2d81 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Applied Sciences, Vol 13, Iss 9152, p 9152 (2023) |
op_relation |
https://www.mdpi.com/2076-3417/13/16/9152 https://doaj.org/toc/2076-3417 doi:10.3390/app13169152 2076-3417 https://doaj.org/article/854d6f09ebd548b5b2e6ce7d842b2d81 |
op_doi |
https://doi.org/10.3390/app13169152 |
container_title |
Applied Sciences |
container_volume |
13 |
container_issue |
16 |
container_start_page |
9152 |
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1778136025221038080 |