Do system impedances really affect power swings - Applying power swing protection elements without complex system studies

One of the traditional techniques for detecting power swings uses a dual-quadrilateral characteristic. It is based on the measurement of the time interval it takes the positive-sequence impedance to cross two blinders. Another technique monitors the variation of the swing center voltage approximatio...

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Bibliographic Details
Published in2012 65th Annual Conference for Protective Relay Engineers pp. 108 - 119
Main Authors Fischer, N., Benmouyal, G., Daqing Hou, Tziouvaras, D., Byrne-Finley, J., Smyth, B.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2012
Subjects
Equations
Impedance
Impedance measurement
Mathematical model
Power system stability
Relays
Stability analysis
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Summary:One of the traditional techniques for detecting power swings uses a dual-quadrilateral characteristic. It is based on the measurement of the time interval it takes the positive-sequence impedance to cross two blinders. Another technique monitors the variation of the swing center voltage approximation. This paper presents a performance comparison between applications of these two techniques in cases derived from a sample network transient simulation and in cases recorded during real operations in the field.
ISBN:146731840X
9781467318402
DOI:10.1109/CPRE.2012.6201225