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NPRR #352 · Revision Request

NPRR352  Real-Time HSL Telemetry for WGRs

Approved Urgent sponsor ERCOT posted 2011-04-13 ercot.com
ReasonThe logic that has been implemented per the current Protocol language has resulted in the underestimation of potential wind power output following a release from curtailment for individual WGRs. This in turn has led to larger than desired control and response oscillations when operating near system transmission limits. The proposed language will create a more clear and consistent view of the real power capabilities of WGRs for ERCOT’s Dispatch systems.
Created2011-04-21
Approved2011-05-17
Sections Affected
6.5.5.2
Summary
This Nodal Protocol Revision Request (NPRR) changes the process by which Qualified Scheduling Entities (QSEs) determine the High Sustained Limits (HSLs) to telemeter for Wind-powered Generation Resources (WGRs). The requirement that QSEs set the HSL equal to output immediately following a release from curtailment is removed. Instead QSEs will be expected to use their best judgment to determine the output capability of the WGR with the expectation that the value will consider the net real power of the WGR, turbine availability, weather conditions, and whether the WGR output is being affected by compliance with a Security-Constrained Economic Dispatch (SCED) instruction.
Action Log 3 milestones
Documents 6
NameTypePostedClassification
352NPRR-01 Real-Time HSL Telemetry for WGRs 041311 doc Apr 13 '11 Revision Request
352NPRR-02 Impact Analysis 041311 doc Apr 13 '11 Staff Report
352NPRR-03 Urgency Vote Ballot 041511 xls Apr 15 '11 Revision Request Ballot
352NPRR-04 PRS Report 042111 doc Apr 26 '11 Committee Report
352NPRR-05 TAC Report 050511 doc May 5 '11 Committee Report
352NPRR-06 Board Report 051711 doc May 17 '11 Committee Report
Meetings That Took It Up 3
DateMeetingCommitteeStatus
May 17 '11 Board of Directors Meeting BOARD Concluded
May 5 '11 TAC Meeting TAC Concluded
Apr 21 '11 PRS Meeting PRS Concluded