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Project 2007-12
Frequency Response
Related Files
Status:
NERC will issue a data request to collect the
pertinent data needed to advance the writing of a revised frequency
response standard. The SDT is evaluating other methods to collect the
necessary data to analyze Frequency Response.
Purpose/Industry Need:
Frequency
Response, a measure of an Interconnection’s ability to stabilize
frequency immediately following the sudden loss of generation or load,
is a critical component to the reliable operation of the bulk power
system, particularly during disturbances and restoration. The
proposed standard’s intent is to collect data needed to accurately model
existing Frequency Response. There is evidence of continuing
decline in Frequency Response in the three Interconnections over the
past 10 years, but no confirmed reason for the apparent decline.
The proposed standard requires entities to provide data so that
Frequency Response in each of the Interconnections can be modeled, and
the reasons for the decline in Frequency Response can be identified.
Once the reasons for the decline in Frequency Response are confirmed,
requirements can be written to control Frequency Response to within
defined reliability parameters.
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