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Eigenvalue and frequency-domain analysis of the intermountain power project and the WSCC network

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4 Author(s)
R. J. Piwko ; General Electric Co., Schenectady, NY, USA ; H. A. Othman ; O. A. Alvarez ; C. -Y. Wu

The Western Systems Coordinating Council (WSCC) has several interarea modes of oscillation in the range of 0.3 to 0.8 Hz. The results of an investigation of how various network parameters and operating conditions affect the stability of those modes are presented. Eigenvalue and frequency-domain techniques are used. The study results show that numerous system parameters can have a significant impact on overall network stability. These parameters can include control settings, such as those in HVDC systems or power system stabilizers, or operational parameters, such as scheduled tie-line flows. The results show that careful analysis and tuning of all significant controls in a large network are necessary to ensure overall system stability and satisfactory performance

Published in:

IEEE Transactions on Power Systems  (Volume:6 ,  Issue: 1 )