Related Files
Status
The formal comment period for the Generator Ride-through
Standard (PRC-024-3 Replacement) Standard Authorization Request (SAR) concluded 8 p.m. Eastern, Thursday, July 14, 2022. Once the drafting team is appointed by the SC, they will review all comments received and determine the next steps of the project.
Background
The SAR presented to the Standards Committee May 18, 2022
is meant to retire PRC-024-3 and replace it with a performance-based
ride-through standard that ensures generators remain connected to the BPS
during system disturbances. Specifically, the SAR focuses on the generator
protection and control systems that can result in the reduction or
disconnection of generating resources during these events. The SAR also ensures
protection or controls that fail to ride through system events are analyzed,
addressed with a corrective action plan (if possible), and reported to
necessary entities for situational awareness. From a risk-based perspective,
the goal of the standard is to mitigate the ongoing and systemic performance
issues identified across multiple Interconnections and across many disturbances
analyzed by NERC and the Regions. These issues have been identified in
inverter-based resources as well as synchronous generators, with many causes of
tripping entirely unrelated to voltage and frequency protection settings as
dictated by the currently effective version of PRC-024.
Standard(s) Affected – PRC-024
Purpose/Industry Need
The
purpose of this SAR is to retire PRC-024-3 and replace it with a
performance-based ride-through standard that ensures generators remain
connected to the BPS during system disturbances. Specifically, this SAR focuses
on the generator protection and control systems that can result in the
reduction or disconnection of generating resources during these events. The SAR
also ensures protection or controls that fail to ride through system events are
analyzed, addressed with a corrective action plan (if possible), and reported to
necessary entities for situational awareness. From a risk-based perspective,
the goal of the standard is to mitigate the ongoing and systemic performance
issues identified across multiple Interconnections and across many disturbances
analyzed by NERC and the Regions. These issues have been identified in
inverter-based resources as well as synchronous generators, with many causes of
tripping entirely unrelated to voltage and frequency protection settings as
dictated by the currently effective version of PRC-024.
This project will be addressing two SARs.
Subscribe to this project's observer mailing list
Select "NERC Email Distribution Lists" from the "Service" drop-down menu and specify “Project 2020-02 Modifications to PRC-024 (Generator Ride-through) Observer List" in the Description Box.
