Some considerations on power system stability improvement by FACTS devices

A. Griffo*, D. Lauria

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

In the paper some considerations are presented in order to capture the potentiality of Flexible Alternating Current Transmission Systems (FACTS) devices in improving the dynamic performances of power systems. More specifically, these devices can enlarge the attraction region of power systems equilibrium points, allowing to increase the stability margin following large perturbations. In the paper, the boundary of the attraction region of the post-fault stable equilibrium point for a simple power system in presence of FACTS devices, is estimated by means of a quadratic function, which provides a good approximation and an analytical expression which could result very useful for sensitivity analysis. Supplementary controllers to FACTS devices, are also proper means for obtaining an increased damping of interarea oscillations which are inherent in large power systems. A linearized modeling is employed for identifying the countermeasures to face with this complex phenomenon, also taking into account the presence of delay in transmitting remote control signals. In the last part of the paper some numerical applications with respect to test system are reported showing the usefulness of the considerations presented.

Original languageEnglish
Title of host publication2006 INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS, ELECTRICAL DRIVES, AUTOMATION AND MOTION, VOLS 1-3
Place of PublicationNEW YORK
PublisherIEEE Computer Society
Pages809-813
Number of pages5
ISBN (Print)978-1-4244-0193-2
Publication statusPublished - 2006
EventInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion - Taormina, Italy
Duration: 23 May 200626 May 2006

Publication series

NameInternational Power Electronics Electrical Drives Automation and Motion SPEEDAM
PublisherIEEE

Conference

ConferenceInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion
CountryItaly
CityTaormina
Period23/05/0626/05/06

Keywords

  • inter-area oscillations
  • ENERGY FUNCTION
  • power system stability
  • SVC
  • FACTS
  • OSCILLATIONS

Cite this

Griffo, A., & Lauria, D. (2006). Some considerations on power system stability improvement by FACTS devices. In 2006 INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS, ELECTRICAL DRIVES, AUTOMATION AND MOTION, VOLS 1-3 (pp. 809-813). (International Power Electronics Electrical Drives Automation and Motion SPEEDAM). IEEE Computer Society.