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Appropriate placement of series compensators to improve small signal stability of power system
KTH, School of Electrical Engineering (EES), Electric Power Systems.
2012 (English)In: IEEE International Energy Conference and Exhibition (ENERGYCON), 2012, IEEE conference proceedings, 2012, 421-426 p.Conference paper, Presentation (Refereed)
Abstract [en]

Series FACTS devices like thyristor controlled series capacitors (TCSC) equipped with appropriate supplementary damping controller can improve the small signal stability of power system if they are located properly. In this paper, trajectory sensitivity analysis (TSA) is used to determine the best locations for installing TCSC to damp out the inter-area mode of oscillation. Based on the modal analysis, an equivalent angle is defined by determining critical and non-critical machines, and then using trajectory sensitivities of this angle with respect to the impedances of the transmission lines; appropriate locations for placing TCSC are found. To verify the accuracy of the proposed method, the residue technique for optimal placement of FACTS devices is also implemented in this paper. Both methods are applied to the IEEE 3-machines 9-buses test system, and the obtained results show the validity and efficiency of the proposed method.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. 421-426 p.
Keyword [en]
Trajectory sensitivity analysis (TSA), Thyristor Controlled Series Capacitor (TCSC), Small Signal Stability
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-109759DOI: 10.1109/EnergyCon.2012.6348190ScopusID: 2-s2.0-84870788028ISBN: 978-1-4673-1453-4OAI: diva2:584003
IEEE International Energy Conference and Exhibition (ENERGYCON), 9-12 Sept. 2012, Florence

QC 20130109

Available from: 2013-01-10 Created: 2013-01-08 Last updated: 2013-09-05Bibliographically approved

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Nasri, Amin
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