Using Protective Relays for Microgrid Controls

May 6, 2021
This paper elaborates on the most common forms of microgrid control accomplished in modern protective relays for grids with less than 10 MW of generation.

This paper explains how microprocessor-based protective relays are used to provide both control and protection functions for small microgrids. Features described in the paper include automatic islanding, reconnection to the electric power system, dispatch of distributed generation, compliance to IEEE specifications, load shedding, volt/VAR control, and frequency and power control at the point of interface.