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Fast valving scheme using parallel valves for transient stability improvement

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Author: Hassan, F F; Balasubramanian, R; Bhatti, T S

Advisor: Advisor

Date: 1999

Publisher:
Citation: Generation

Series/Report no.:
Item Type: Article

Keywords: steam turbines; fast valving scheme; nuclear power plant; rotor angle damping

Abstract: A new fast valving scheme of steam turbines using two parallel valves for improving the transient stability of a power system is proposed. The influence of the actuation time parameters of a conventional fast valving scheme using a single valve is first studied in detail to justify the need for a parallel valve scheme. A systematic procedure for selecting suitable valve actuation times, the sequence and the conditions to be monitored for implementing a coordinated parallel valve actuation scheme is presented. The proposed scheme is applied to a typical nuclear power plant connected to an infinite busbar system. A four stroke valve operation mode of the scheme is found to improve the second and subsequent swing stability significantly. A multiple stroke operation mode of the scheme for improving the rotor angle damping over a longer period of transient is also presented
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Shankar B. Chavan
Computer Applications Division
Central Library, IIT Delhi
shankar.chavan@library.iitd.ac.in
NDLTD
Shodhganga
NDL
ePrints@IISc
etd@IISc
IR@IIT Bombay
NewsClips @IITD
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