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Eigenvalue screening of synchro-phasor measurements for transmission networks

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3 Author(s)
B. Kulicke ; Electr. Engineering Dept. of the TU Berlin, Germany ; E. Lerch ; O. Ruhle

Power systems are steadily growing and formerly separated systems are interconnected with each other. With increased generation capacity, different areas in power systems are added with inertia, making system prone to interarea oscillations. The deregulation in the electrical power system market on the other hand leads to higher loading of the transmission network resulting on an operation closer to the stability limits. As a consequence the improvement of small signal stability, especially the damping of interarea oscillation becomes an increasing importance. Damping can be improved by accordingly modulating either the generation or the load in the power system. Beside the classical Small Signal Stability analysis this paper describes a new approach of Eigenvalue Screening in time domain simulations. This new approach is more effective and much faster than the classical Prony analysis. It will be shown that this Eigenvalue Screening approach can be used for the analysis of synchron-phasor measurements in transmission systems for example in the field of Dynamic Security Assessment.

Published in:

2011 IEEE Power and Energy Society General Meeting

Date of Conference:

24-29 July 2011