Aggregated models of active distribution networks for stability studies of large transmission systems

The paper presents a new framework to quantify the amount of dynamic grid support that should be provided from converter-based energy resources replacing generation synchronous machines. A tuning approach for local stability issues in active distribution networks (ADN) is presented, followed by an aggregation procedure derive adequate low-order ADN models. resulting models benchmark systems with varying shares grid-forming up 100% load are published along paper. They allow representation ADNs assessment voltage and frequency performance large-scale transmission simulations. quantitative study full continental ENTSO-E system investigates large disturbance form split multiple development paths converters It found about 10%–20% have grid-support capabilities maintain power at today’s level. • method converters. An low order response disturbances. model suite studies (published paper). during (system split). Recommendation future level control contributions ADN.