Creating and validating of dynamic models for large power transmission systems

The dynamic models of the power system for the generators, excitation system, power system stabilizer, turbine governors and load models are built. Selected generators are field tested in order to complete the data set and verify the existing parameters and data. The dynamic models are based on standard PSS®E models or user defined models where necessary. The user defined models are built with the Graphical Model Builder (GMB) of the PSS® Software Suite. The entire dynamic model is validated by selected incidents. Finally, a dynamic network model with very good representation of the single generating unit performance and overall congruence at electro-dynamic events are gained for an entire transmission network. The developed dynamic network model enables the transmission system operator to assess electro-dynamic events and required primary frequency reserve by very accurate and detailed simulations with PSS®E and GMB. This paper describes the methodology of building a nationwide dynamic network model.