Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.3390/en15218044

Ключевые слова: dynamic modeling, hydro-turbine modeling, hydropower, hydropower plants, mathematical modeling, transient processes, water flow inertia

Аннотация: The Francis hydro-turbine is a typical nonlinear system with coupled hydraulic, mechanical, and electrical subsystems. It is difficult to understand the reasons for its operational failures, since the main cause of failures is due to the complex interaction of the three subsystems. This paper presents an improved dynamic model of tПоказать полностьюhe Francis hydro-turbine. This study involves the development of a nonlinear dynamic model of a hydraulic unit, given start-up and emergency processes, and the consideration of the effect of water hammer during transients. To accomplish the objectives set, existing models used to model hydroelectric units are analyzed and a mathematical model is proposed, which takes into account the dynamics during abrupt changes in the conditions. Based on these mathematical models, a computer model was developed, and numerical simulation was carried out with an assessment of the results obtained. The mathematical model built was verified on an experimental model. As a result, a model of a hydraulic unit was produced, which factors in the main hydraulic processes in the hydro-turbine. © 2022 by the authors.

Журнал: Energies

Выпуск журнала: Vol. 15, Is. 21

Номера страниц: 8044

ISSN журнала: 19961073

Издатель: MDPI

• Achitaev A. (Department of Hydropower, Hydroelectric Power Plants, Electricity Systems and Electricity Networks, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
• Ilyushin P. (Energy Research Institute of the Russian Academy of Sciences, Moscow, 117186, Russian Federation, Department of Hydropower and Renewable Energy, National Research University “Moscow Power Engineering Institute”, Moscow, 111250, Russian Federation)
• Suslov K. (Department of Hydropower and Renewable Energy, National Research University “Moscow Power Engineering Institute”, Moscow, 111250, Russian Federation, Department of Power Supply and Electrical Engineering, Irkutsk National Research Technical University, Irkutsk, 664074, Russian Federation)
• Kobyletski S. (Information and Technological Systems Communication Service, RusHydro, “Sayano-Shushenskaya” HPP, Sayanogorsk, 655600, Russian Federation)

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