Applying a wide-area measurement system to validate the dynamic model of a part of European power system

Abstract

In this paper a validation of dynamic model of a Slovenian power system using WAMS is presented. For this purpose a dynamic model of a part of the ENTSO-E system was constructed by applying two professional dynamic-simulation software tools that use different approaches to obtain mathematical solutions for the model to solve the problem. The simulation results were compared with each other as well as with the measurements gathered by the WAMS. Namely, Slovenia has almost full coverage of PMU measurements at the high-voltage level (220- and 400-kV) buses. This fact has been used to adapt the model, especially for the representation of the rest of the ENTSO-E network, as well as for the validation of the results and explaining the physical background for the existing differences. WAMS measurements for several different events occurring during 2010 and 2011 were used to adapt the model, which then exhibits a good match in all situations recorded by the WAMS. The physical background for the resulting deviations is presented. However, it should be pointed out that, after the model was finalized, for all the validated cases the system element parameters remained unchanged. Of course, depending on the simulated case, the initial steady-state conditions were set according to the measurements.