Quantifying the uncertainty imposed by inaccurate modeling of active distribution grids

Replacing conventional generation with inverter-interfaced units has turned distribution networks (DNs) from consumers to active and responding intelligent DNs. These modern DNs contain several devices that can support the transmission network (TN) system stability. Typically, deterministic aggregated models for loads are used include entire in bulk stability studies, contributions smart neglected. This approach introduces errors dynamic modeling lead instabilities. In this paper, we first present a full detailed model of DN, enhancing existing thermal load distributed frequency voltage protection functions required low-inertia systems. Then, incorporate uncertainty stems parameterization such using Monte-Carlo method. Finally, assess impact neglecting specific against disturbances. The results show crucial importance accurately analyze on addition, findings highlight increased relevance considering studies weak power