Stabilization of 100% IBR grids utilizing Grid Forming Controls (GFM)

Increased proliferation of Inverter Based Resources (IBRs) and retirement of conventional power generation has resulted in depleted short circuit levels and has raised stability concerns in operating electric power grids. Majority of the IBRs today are Grid Following (GFL) meaning they require a voltage and frequency reference for their Phase Locked Loop and 'follow' and latch onto, in order to inject current into the grid. As short circuit levels drop, GFLs suffer from instability, raising concerns. Grid-forming inverters (GFMs) are a promising solution in this regard as they behave as voltage sources behind an internal impedance, providing both voltage and frequency regulation. Future electric power grids will contain a mix of GFL and GFM IBRs and this talk will showcase implementation of a novel GFM control method in PSSE (a positive sequence RMS tool) that helps in stabilization of 100% renewable grids.
Speaker(s): Tamojit Chakraborty,
Virtual: https://events.vtools.ieee.org/m/432690