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2021 | OriginalPaper | Buchkapitel

Rotor Dynamics of Turbine–Generator Shaft with Dampers During Subsynchronous Resonance Generated by Series Capacitors

verfasst von: P. Manikandan, Faheem Ahmed Khan

Erschienen in: Proceedings of the 6th National Symposium on Rotor Dynamics

Verlag: Springer Singapore

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Abstract

Purpose In this paper, an electromechanical approach to study the turbine–generator shaft stability with and without dampers is made. The shaft is subjected to electrical disturbances created by series capacitors. The high power capacitors help the electric power system to improve the reactive power in high voltage transmission lines. Methods Finite element method is used to study the stability of the shaft under subsynchronous resonance when compared to the traditional methods like eigenvalue analysis, frequency scanning method and digital time simulation techniques. At the same time, it leads to subsynchronous resonance. Results Electromechanical stress in the rotating shaft arises when the resonance is created in the system. Maximum stress and strain of the shaft are calculated with other necessary parameters to prove the system instability. In order to maintain stability, dampers are installed at an optimum location. Conclusion Best location of installing damper is found using ANSYS 16.0 by modal analysis, harmonic and phase response analysis. The damper installed at the point reduces the stress caused by subsynchronous resonance and maintains the stability of the system.

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Metadaten
Titel
Rotor Dynamics of Turbine–Generator Shaft with Dampers During Subsynchronous Resonance Generated by Series Capacitors
verfasst von
P. Manikandan
Faheem Ahmed Khan
Copyright-Jahr
2021
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-15-5701-9_16

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