Compares the response of approximately 9 GW of DERs to transmission-level faults under the 2003 and 2018 editions of the IEEE 1547 standard. The voltage ride-through performance categories defined in IEEE 1547-2018 were specifically investigated, as the choice of these categories requires consideration of both transmission-level reliability and distribution operations and protection aspects.
Results indicate that not only are DERs important to the recovery of power system stability following a fault event, but DERs implementing IEEE 1547-2018 voltage ride-through performance categories can also avoid the loss of significant amounts of generation (100s of megawatts at relatively low DER penetration levels), which is conducive to higher grid reliability and resilience.
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https://www.nrel.gov/news/program/2020/study-shed-light-on-new-ieee-standard-categories.html