Analysis and Improvement of the Stability of a Hydro-Turbine Generating Unit With Long Penstock

The influence of water column elasticity on the stability limits of a hydro- turbine generating unit with long pen-stock operating on an isolated load is investigated. D-decomposition method is used for deriving the stability regions including the elastic water column. It has been shown that a modif...

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Bibliographic Details
Published in:IEEE transactions on power apparatus and systems 1984-02, Vol.PAS-103 (2), p.360-367
Main Authors: Murty, M.S.R., Hariharan, M.V.
Format: Article
Language:English
Subjects:
Applied sciences
Elasticity
Electric power plants
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Feedback
Frequency response
Hydroelectric power plants
Mathematical model
Power generation
Signal generators
Stability analysis
Testing
Transfer functions
Turbines
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Summary:The influence of water column elasticity on the stability limits of a hydro- turbine generating unit with long pen-stock operating on an isolated load is investigated. D-decomposition method is used for deriving the stability regions including the elastic water column. It has been shown that a modified water column compensator enhances the stability regions and dynamic performance considerably.
ISSN:0018-9510
2995-6323
DOI:10.1109/TPAS.1984.318252