Analysis And Damping Of Torsional Oscillations Through Supplementary Exciation Control

The effectiveness of stabilizing signals introduced at the input of an excitation system using a power system stabilizer (PSS) is analysed to damp torsional oscillations in a series compensated system is investigated. Two methods (i) generator shaft speed deviation signal and (ii) modal speed deviat...

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Published inTENCON '91. Region 10 International Conference on EC3-Energy, Computer, Communication and Control Systems Vol. 1; pp. 325 - 334
Main Authors Balasubramanyam, P.V., Parameswaran, S., Murthy, P.R.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1991
Subjects
Control systems
Damping
Power generation
Power system control
Power system modeling
Power system stability
Power systems
Shafts
Signal generators
Synchronous generators
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Summary:The effectiveness of stabilizing signals introduced at the input of an excitation system using a power system stabilizer (PSS) is analysed to damp torsional oscillations in a series compensated system is investigated. Two methods (i) generator shaft speed deviation signal and (ii) modal speed deviation as feedback signals to PSS (a) one PSS (b) two PSS is studied.The study system (similar to second IEEE Benchmark model system I) consists of a synchronous generator connected to an infinite bus through two parallel transmission lines, one of which is series compensated. A power system stabilizer (PSS) is installed in the excitation system to provide damping torque for the generator. The PSS described here is designed to damp the torsional oscillations. Main empahsis is given on modelling aspects of PSS and its effectiveness in damping the torsional oscillations.
ISBN:0780305388
9780780305380
DOI:10.1109/TENCON.1991.712584