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PRR549

Summary

Title Regulation Control During Abnormal Frequency Events
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Status Withdrawn on 12/14/2007

Action

Date Gov Body Action Taken Next Steps
12/14/2007 Withdrawn

Voting Record

Date Gov Body Motion Result
12/14/2007

Background

Status: Withdrawn
Date Posted: Oct 8, 2004
Sponsor: TXU
Urgent: No
Sections: 6.5.3, 6.8.1.15, 6.10.6         
Description: This PRR revises Sections 6.5.3, 6.8.1.15.1, and 6.10.6 to establish an ERCOT frequency deadband of +/- 0.03Hz to aid in regulation control during abnormal frequency events. When ERCOT frequency is outside the deadband, any Qualified Scheduling Entity (QSE) that has a System Control Error (SCE) that is acting to return frequency to a level that is within the deadband will continue to send Dispatch signals to their Resources until the ERCOT frequency returns to a level that is within the deadband. However, in the case when ERCOT frequency is outside the deadband and, any QSE has an SCE error that is acting to move frequency further outside the deadband, that QSE will temporarily suspend sending signals to its Resources until ERCOT frequency returns to a level that is within the deadband.
Reason:

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