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A dynamic equivalent black-box model, based on Prony analysis is presented. The proposed model is suitable for dynamic studies of microgrids, considering changes in the active and reactive powers, bus voltages, currents and frequency. The developed model is evaluated using simulation results obtained from a medium-voltage microgrid and test measurements recorded in a low-voltage microgrid laboratory test facility. Results from the proposed model are in good agreement with the corresponding responses obtained from both simulations and laboratory tests. The examined microgrid configurations include rotating machines and inverter interfaced units implementing different control strategies, thus verifying the robustness of the proposed model.
- black-box model
- prony analysis
Papadopoulos, P., Papadopoulos, T., Crolla, P., Roscoe, A., Papagiannis, G., & Burt, G. (2014). A black-box dynamic equivalent model for microgrids using measurement data. IET Generation, Transmission and Distribution , 8(5), 851-861. https://doi.org/10.1049/iet-gtd.2013.0524