PES General Meeting 2025, July 27-31 | Austin, Texas
In addition to our working group meeting, the DRIWG is sponsoring two panels that will be featured at the PES General Meeting.
Electromagnetic Transient Analysis with DERs ‒ Emerging Need, Challenges, and Lessons Learned
With the increasing integration of inverter-based DERs, utilities are exploring various interconnection study approaches to assess their impacts. Electromagnetic transient (EMT) analysis is becoming essential for evaluating phenomena such as transient overvoltage, control instability, harmonics, faults, and ride-through characteristics. EMT modeling captures complex network interactions, detailed controls, and protections in DERs. However, EMT studies are relatively new for distribution utilities, with challenges including resource limitations, screening methodologies, model development, and acquiring vendor-specific DER models. This panel will discuss the need for EMT analysis, share experiences, and explore approaches to streamline studies, featuring utility engineers and consultants performing EMT studies.
Nishant Bilakanti is the Panel Session Chair. The panel will feature various distribution utility speakers.
The Role of Grid-Forming Distributed Energy Resources in an Inverter-Dominated Power System
As the share of inverter-based generation resources increases globally, grid-forming (GFM) inverters have been identified as an effective solution to maintain system strength and inertia. However, most system impact studies and requirement developments for GFM inverters have focused on transmission applications. The needs and benefits of GFM distributed energy resources (DERs) in power systems with high DER penetration are less explored, as are the impacts of GFM DERs on distribution system operations. This panel will discuss the challenges of operating power systems with high DER penetration and the benefits and impacts of GFM DERs under both microgrid and blue-sky conditions, with insights from system operators, inverter OEMs, and research entities.
Wenzong Wang is the panel session chair. This panel will feature grid operators, researchers, developers, and distribution system operators.