Impact of the Interaction of Synchronous Machines and Virtual Inertia Provisions on the Small Signal Stability of Microgrids

Abstract

With the increasing number of inverter-based resources in the distribution system, there is a growing possibility for the development of self-consuming energy communities. In the context of this transition, this work aims to study the interaction of synchronous and virtual inertia in low inertia microgrids, where the inertia is emulated synthetically by controlling the inverterbased resources to respond to the system frequency. The effect of the interaction of the grid-forming and grid-following inverter controls with synchronous machines on the oscillatory stability of the system has been explored.