PNNL

Abstract

For the past century, electric power systems have primarily been bulk power systems consisting of generation, transmission, and distribution networks. Now the rapid expansion of distributed renewable power sources (RESs) and the shift from large, conventional synchronous machine re- sources to smaller-sized resources with diverse generation characteristics become the most sig- nificant change in modern power systems. With the increasing penetration of RESs, which are inverter-based resources (IBRs), it is important to develop interconnection standards that define performance and capability criteria for these IBRs. This is necessary to ensure the stable and reli- able operation of power systems. This report summarizes the standards for IBRs interconnection in North America.