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FACTS and HVdc systems may adversely affect the torsional dynamics of a turbine-generator system. Eigen-value analysis is a powerful approach for analysis of such instabilities. The size of the system is not a major constraint, as efficient selective eigen-value analysis tools are widely available. Eigen-value analysis requires an accurate small-signal model of the complete system including the Power...
Frequency scanning is a practical technique to obtain a small-signal frequency-domain model of complex Power Electronic Systems(PES) by injecting a wide band signal of small amplitude in the time domain simulation of the system. The study of interactions of a PES with a grid may then be done using this model, using stability analysis methods like the Nyquist criterion, provided the model is Linear...
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