Determination of modes of oscillations by Holzer’s method & fatigue problem and analysis of transient state sub-synchronous resonance

Type :

Term papers

Pages :

4 pages

Format :

.pdf

Published date :

09/21/2009

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Summary :

 
 

Table of Contents Determination of modes of oscillations by Holzer’s method & fatigue problem and analysis of transient state sub-synchronous resonance Table of Contents

 
  1. Abstract
  2. Introduction
  3. Description of the sample system
  4. Torsional oscillations modes and mode shapes
  5. Analysis of transient state sub-synchronous resonance using Holzers method
    1. Transient torques resulting from sub-synchronous currents
    2. Transient torques on the segments of the turbine generation shaft
    3. Results
  6. Appendix: Transient electromagnetic torque
  7. Conclusion
  8. Bibliography

Abstract

The phenomenon of sub-synchronous resonance (SSR) is very important in alternating current EHV series compensated power system. In view of the development of high rating turbo alternator and highly series compensated EHV transmission systems, the above phenomenon and its associated problems need careful design considerations [1]. sub-synchronous resonance is an electric power system condition where the electrical network exchanges energy with a turbine generator at one or more of the natural frequencies of the combined system below the synchronous frequency of the system torque in shafts of currents may also appear lower voltage circuits and may cause similar stresses on generator auxiliary motor as well as noticeable light flicker near the generating station [2, 3].

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About the author :

pencil image Vijay P. Director of Shri HDG MBA College
Level :General public Study : Management School/University : Saurashtra University

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