Grid-forming (GFM) inverters are increasingly recognized as a solution to facilitate massive
grid integration of inverter-based resources and enable 100% power-electronics-based …

Historically, distribution system planning studies mainly focused on steady state and quasi-
steady state analysis, with limited attention paid to dynamic analysis. This paper develops …

Increasing renewable penetration and grid modernization initiatives are having a significant
impact on the operating and fault characteristics of distribution systems. As a result …

Control of multiple inverters in the distribution grid can be achieved by adopting appropriate
droop laws. However, in an unbalanced power distribution system with single-phase and …

As more renewable generation connects to distribution systems, it is imminent that existing
distribution feeders will be converted to microgrids-systems that offer resilience by providing …

Traditional positive-sequence phasor models of droop-controlled, grid-forming inverters do
not have the fault current limiting function. During a short-circuit fault the models generate …

Due to the inherent characteristics of inverter-interfaced distributed generators (IIDG), their
fault responses are different from those of conventional synchronous generators …

With inverter-based distributed energy resources (DERs) becoming more prevalent in grid-
connected or islanded distribution feeders, a better understanding of the performance of …

This paper presents an examination of grid-forming converters (GFM) under low-voltage-ride-
through (LVRT) conditions. It emphasizes the influence of inner loop control strategies, and …

This report summarizes a gap analysis resulting from a literature review and expert
interviews conducted by subject matter experts from Sandia National Laboratory, Siemens …