Sakis Meliopoulos (Georgia Tech) - ecedha

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Transient Stability Monitoring The dynamic state estimator is utilized to predict the transient stability or instability of a generator. The dynamic state of the system provides the center of oscillations of the generator swing. From this information the potential energy of the generator is computed as a generalization of the basic energy function method. The total energy of the generator can also be trivially computed once the potential energy has been computed. The total energy is compared to the potential energy of the generator – if the total energy is higher than the peak (barrier) value of the potential energy this indicates that the generator will lose its synchronism (transient instability). It is important to note that this approach is predictive, i.e. it identifies a transient instability before it occurs. The figures provide visualizations of generator oscillations and the trajectory of the total energy superimposed on the system potential energy. NSF/ECEDHA Education Workshop Georgia Tech GLC, Atlanta, Georgia, July 9-12, 2011 1.28
Energy Management Systems Hierarchy of Scheduling Functions Level 1: Load Forecasting Unit Commitment Emissions Control Economy Purchases Level 2: Economic Dispatch Environmental Dispatch Economic Interchange Evaluation Optimal Power Flow Transfer Capability Day-Ahead Scheduling Spot Market Scheduling Level 3: Automatic Generation Control - Frequency Control - Interchange Control - Transactions Control - Inadvertent Power Flow Control NSF/ECEDHA Education Workshop Georgia Tech GLC, Atlanta, Georgia, July 9-12, 2011 1.29
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Page 3 and 4: Undergraduate Curriculum ECE3070 El
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Sakis Meliopoulos (Georgia Tech) - ecedha

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