Research Article Open Access

Coordination of Series and Shunt Flexible Alternating Current Transmission Line System Devices Based Thyristor Controller for Improving Power System Stability

Prechanon Kumkratug1
  • 1 ,
American Journal of Applied Sciences
Volume 8 No. 4, 2011, 355-358

DOI: https://doi.org/10.3844/ajassp.2011.355.358

Submitted On: 19 February 2011 Published On: 18 April 2011

How to Cite: Kumkratug, P. (2011). Coordination of Series and Shunt Flexible Alternating Current Transmission Line System Devices Based Thyristor Controller for Improving Power System Stability. American Journal of Applied Sciences, 8(4), 355-358. https://doi.org/10.3844/ajassp.2011.355.358

Abstract

Problem statement: Thyristor Controlled Series Capacitor (TCSC) and Static Var Compensator (SVC) have been individually applied to improve stability of power system. Approach: This study presents the coordination of a TCSC and SVC for improving power system stability. The swing curves of the three phase faulted power system with various cases are tested and compared. Results: The swing curve of system without FACTS devices has undamped oscillation. The system with a TCSC or a SVC can increase damping of power system whereas the system with coordination of a TCSC and a SVC provides the best results of stability improvement Conclusion: From the simulation results, the stability of power system can be much better improved by coordination control of a TCSC and a SVC.

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Keywords

  • Power system stability
  • transient stability
  • FACTS devices
  • thyristor controlled
  • Static Var Compensator (SVC)
  • Static Synchronous Series Compensator (SSSC)
  • Thyristor Controlled Series Capacitor (TCSC)
  • Single Machine Infinite Bus (SMIB)
  • electrical power
  • dynamic behavior