American Journal of Applied Sciences

Generator Dynamic Performance Affected by Parameter’s Uncertainty

Akbar Beik Khormizi, Mohammad Reza Aghamohammadi and Mina Rezaee

DOI : 10.3844/ajassp.2013.570.578

American Journal of Applied Sciences

Volume 10, Issue 6

Pages 570-578


This study investigates the effect of generator parameters inaccuracy on the transient stability performance of generator and power system. Normally, generator parameters are identified either by calculation based on design specification or by measurements. In both approaches the parameters are obtained with some degree of inaccuracy. Inaccuracy and uncertainty in the obtained parameters can affect the dynamic performance and transient behavior of synchronous generators in which this may affect transient stability evaluation of power systems. In this study by introducing a sensitivity analysis concept for dynamic performance of generator the effect of inaccuracy of generator parameters on the transient stability of power system is evaluated and the acceptable and tolerable inaccuracy in the identification of each parameter is analyzed. The proposed concept and approach is demonstrated on the IEEE 39-bus test.


© 2013 Akbar Beik Khormizi, Mohammad Reza Aghamohammadi and Mina Rezaee. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.