DER Analysis with Effective Load Carrying Capability for Enhanced Carbon-Aware Active Distribution System Resilience

The resilience of active distribution systems against high-impact low-probability (HILP) events is a concern for distribution system operators (DSOs) and operators. In the short term, the optimal scheduling of distribution systems including various distributed energy resources (DERs) can improve the grid’s resilience without much extra cost and time. Considering the reliable extra power that the DERs can supply, which is known as the DER’s effective load-carrying capability (ELCC), this paper aims to integrate ELCC calculations into the general resilience-oriented distribution system scheduling methodology. In this way, the mesh view of the distribution system is first obtained to exactly calculate the location of the system components. Then, scenarios are generated based on the market characteristics and the HILP event features, such as location, type, and severity level. Finally, the proposed methodology is developed by integrating the generalized distribution system scheduling methodology with ELCC calculations considering uncertainties and carbon emissions. The proposed method is applied to an augmented IEEE 33-bus test system with DERs. Results show that the ELCC of DERs is a cost-effective method to improve distribution system resilience in the short term.