DER Interconnection Assessment Using ADMS for Stable Distribution System Operation

As distributed energy resources (DERs) become increasingly integrated into distribution systems, ensuring safe and reliable interconnection has become a critical challenge. This study explores the use of an Advanced Distribution Management System (ADMS) as a technical review tool for DERs interconnection. The proposed approach enables users to reflect newly requested DERs into the operational analysis database and evaluate their impact using ADMS study mode. Key ADMS functionalities, including network modeling, load estimation, voltage analysis, and protection coordination checks, are described and applied to DERs interconnection scenarios. The study demonstrates that ADMS not only improves the reliability of technical assessments but also allows for automated evaluation of all criteria defined in the DERs interconnection technical guidelines—including thermal capacity, voltage impact, and protection coordination. This study demonstrates that stable operation of the distribution system can be achieved even with the increasing penetration of DERs, while also contributing to reduced reviewer workload and improved transparency and traceability.