Synchronous Grid-forming STATCOM Supercapacitor Energy Storage - Control During Active-Power Involving Events

The retirement of fuel-based synchronous generators, which have traditionally provided inherent inertia and frequency support, combined with the increasing penetration of renewable energy sources, is weakening power system stability. The resulting reduction in system inertia can lead to a high Rate of Change of Frequency (RoCoF) and an increased risk of frequency instability. These adverse effects can be mitigated through fast active-power support using synchronous grid-forming (SGFM) STATCOMs equipped with supercapacitor energy storage