Damping controller design for power system oscillations using global signals

This paper describes a new power system stabilizer (PSS) design for damping power system oscillations focusing on interarea modes. The input to the PSS consists of two signals. The first signal is mainly to damp the local mode in the area where PSS is located using the generator rotor speed as an in...

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Bibliographic Details
Published in:IEEE transactions on power systems 1996-05, Vol.11 (2), p.767-773
Main Authors: Aboul-Ela, M.E., Sallam, A.A., McCalley, J.D., Fouad, A.A.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit optimization
Control systems
Damping
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Frequency response
Modal analysis
Power networks and lines
Power system control
Power systems
Rotors
Signal generators
Tuning
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Summary:This paper describes a new power system stabilizer (PSS) design for damping power system oscillations focusing on interarea modes. The input to the PSS consists of two signals. The first signal is mainly to damp the local mode in the area where PSS is located using the generator rotor speed as an input signal. The second is an additional global signal for damping interarea modes. Two global signals are suggested; the tie-line active power and speed difference signals. The choice of PSS location, input signals and tuning is based on modal analysis and frequency response information. These two signals can also be used to enhance damping of interarea modes using SVC located in the middle of the transmission circuit connecting the two oscillating groups. The effectiveness and robustness of the new design are tested on a 19-generator system having characteristics and structure similar to the Western North American grid.
ISSN:0885-8950
1558-0679
DOI:10.1109/59.496152