Research Article Open Access

Investigation of the Critical Clearing Time of Power System with Synchronous Machine Model Including Saliency

Prechanon Kumkratug1
  • 1 ,
American Journal of Applied Sciences
Volume 9 No. 2, 2012, 227-230

DOI: https://doi.org/10.3844/ajassp.2012.227.230

Submitted On: 13 October 2011 Published On: 21 December 2011

How to Cite: Kumkratug, P. (2012). Investigation of the Critical Clearing Time of Power System with Synchronous Machine Model Including Saliency. American Journal of Applied Sciences, 9(2), 227-230. https://doi.org/10.3844/ajassp.2012.227.230

Abstract

Problem statement: Most of synchronous generator applied in power system is the salient pole type. Most of previous researches use non-salient model to evaluate the critical clearing time. Thus the results of critical clearing time of power system may be error. Approach: Thus this paper investigate the critical clearing time of power system with synchronous machine. The mathematical model of non-salient pole and salient pole synchronous machine model in power system are symmetrically derived. The critical clearing time of both models are tested and compared on various cases. Results: The critical clearing time of the power system with synchronous including saliency is slightly higher that of non saliency model. Conclusion: It is found from simulation results that even swing curve of both models is obviously different. Their critical clearing times are slightly different.

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Keywords

  • Power system stability
  • transient stability
  • critical clearing time
  • FACTS devices
  • salient pole
  • non-salient pole