Research Article Open Access

Comparison of UPFC-Based Stabilizer and PSS Performances on Damping of Power System Oscillations

M. R. Meshkatoddini, M. Majidi, M. Sadeghierad and H. Lesani

Abstract

This paper establishes the linearized Phillips-Heffron model of a power system equipped with UPFC and demonstrates the application of the model in analyzing the damping effect of the UPFC and designing UPFC based stabilizer to improve power system oscillation stability. A comprehensive approach to the design of UPFC based stabilizer (power flow control, DC-voltage regulator and damping controller) is presented. In this case, the multi-machine power system with UPFC is studied and an example of power system is presented. It is shown that the DC voltage contributes negative damping to power system oscillations, which is confirmed by both eigenvalue computation and nonlinear simulation. To counterattack the negative damping effect due to the DC voltage regulator, UPFC based stabilizer is designed and its effectiveness is demonstrated by both eigenvalue computation and nonlinear simulation. Then the effects of UPFC and PSS on power systems are compared. Simulation results show that the performance of UPFC based stabilizer on damping of power system is better than PSS.

American Journal of Applied Sciences
Volume 6 No. 3, 2009, 401-406

DOI: https://doi.org/10.3844/ajassp.2009.401.406

Submitted On: 19 June 2008 Published On: 31 March 2009

How to Cite: Meshkatoddini, M. R., Majidi, M., Sadeghierad, M. & Lesani, H. (2009). Comparison of UPFC-Based Stabilizer and PSS Performances on Damping of Power System Oscillations . American Journal of Applied Sciences, 6(3), 401-406. https://doi.org/10.3844/ajassp.2009.401.406

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Keywords

  • Phillips-heffron model
  • UPFC
  • stabilizer
  • PSS