A1 Journal article (refereed)
Analytical-numerical analysis of closed-form dynamic model of Sayano-Shushenskaya hydropower plant : stability, oscillations, and accident (2021)


Kuznetsov, N.V.; Yuldashev, M.V.; Yuldashev, R.V. (2021). Analytical-numerical analysis of closed-form dynamic model of Sayano-Shushenskaya hydropower plant : stability, oscillations, and accident. Communications in Nonlinear Science and Numerical Simulation, 93, 105530. DOI: 10.1016/j.cnsns.2020.105530


JYU authors or editors


Publication details

All authors or editors: Kuznetsov, N.V.; Yuldashev, M.V.; Yuldashev, R.V.

Journal or series: Communications in Nonlinear Science and Numerical Simulation

ISSN: 1007-5704

eISSN: 1878-7274

Publication year: 2021

Volume: 93

Article number: 105530

Publisher: Elsevier

Publication country: Netherlands

Publication language: English

DOI: http://doi.org/10.1016/j.cnsns.2020.105530

Open Access: Publication channel is not openly available

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71928


Abstract

This work is devoted to the analysis of a mathematical model of hydropower unit, consisting of synchronous generator, hydraulic turbine, and speed governor. It is motivated by the accident happened on the Sayano-Shushenskaya hydropower plant in 2009 year. In the analysis we follow the line of classical control theory approach developed in the works of famous scientists J.C. Maxwell, I.A. Vishnegradsky, A.A. Andronov, and F. Tricomi for the study of centrifugal turbine governor and electrical machines limit-load problem. It is shown that the occurrence of vibrations in the Sayano-Shushenskaya hydropower plant can be caused by nonlinear dynamics of the closed-form model.


Keywords: hydroelectric power stations; generators (devices); hydraulic turbines; control engineering; control theory; mathematical models; simulation; oscillations

Free keywords: Sayano-Shushenskaya hydropower plant; hydropower unit; synchronous generator; hydraulic turbine; speed governor; simulation; oscillations


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Preliminary JUFO rating: 1


Last updated on 2020-30-09 at 07:17