Eigenvector analyses of subsynchronous resonance

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Eigenvector analyses of subsynchronous resonance

 

Author: Wan, Chi-shing
Title: Eigenvector analyses of subsynchronous resonance
Degree: M.Sc.
Year: 1994
Subject: Subsynchronous resonance (Electrical engineering) -- Mathematical models
Eigenvectors
Hong Kong Polytechnic -- Dissertations
Department: Dept. of Electrical Engineering
Pages: 68 leaves : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1168453
URI: http://theses.lib.polyu.edu.hk/handle/200/4194
Abstract: Subsynchronous resonance (SSR) causes a persistent problem to a system containing series compensated transmission lines. Many papers have been written on the subject of SSR, most of them did not provide insights on the interactions between various stages of the turbine-generator shafts and the effect of excitation system (EXC) on SSR. To effectively study the SSR problem, it is important to develop a suitable system model with appropriate analytical tools for present and future investigations. Hence a sophisticated model which is suitable for SSR analysis and examination of the SSR phenomenon, e.g, identification of components causing SSR and their interaction, is developed. All system components, including generator, network and turbine-generator shaft, are modelled. Through the eigenvector analyses, insights on interaction between various stages of the turbine-generator shafts and the effect of EXC on SSR are obtained. Based on the newly developed model and the eigenvector analyses, the characteristics of SSR with respect to the lightly and heavily damped transmission lines is illustrated. Also the shaft position which most likely to cause SSR is suggested and the effect of EXC on SSR is studied thoroughly.

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