Area Control Error definition

Area Control Error or “ACE” shall mean the instantaneous difference between a Balancing Authority’s net actual and scheduled interchange, taking into account the effects of Frequency Bias and correction for meter error.
Area Control Error or ‘ACE’ means the sum of the power control error (‘ΔP’), that is the real-time difference between the measured actual real time power interchange value (‘P’) and the control program (‘P0’) of a specific LFC area or LFC block and the frequency control error (‘K*Δf’), that is the product of the K-factor and the frequency deviation of that specific LFC area or LFC block, where the area control error equals ΔP+K*Δf;
Area Control Error means the instantaneous difference between actual and scheduled interchange, taking into account the effects of frequency bias (and time error or unilateral inadvertent energy, if automatic correction for either is part of the AGC);

Examples of Area Control Error in a sentence

  • The Area Control Error will be calculated by the CAISO Energy Management System.

  • To ensure Balancing Authorities confirm Interchange Schedules with Adjacent Balancing Authorities prior to implementing the schedules in their Area Control Error (ACE) equations.

  • The CAISO or EIM Entity operators will consider factors such as: load forecast discrepancies; Area Control Error adjustments; Variable Energy Resource deviations; resource outages not entered in the Outage Management System; generator testing; reliability curtailments due to transmission or equipment outages; weather changes; and pumping resource schedule changes.

  • Inputs to frequency management include Tie-Line Bias Control, Area Control Error (ACE), and the various Requirements in NERC Resource and Demand Balancing Standards, specifically BAL-001-2 Real Power Balancing Control Performance and BAL- 003-1 Frequency Response and Frequency Bias Setting.

  • The Company has aligned its current systems of internal financial control with the requirement of Companies Act 2013.

  • A Dynamic Schedule is a telemetered reading or value which is updated in Real-Time and which is used as a schedule in the CAISO Energy Management System calculation of Area Control Error and the integrated value of which is treated as a schedule for interchange accounting purposes.

  • Each Balancing Authority shall operate such that, on a rolling 12-month basis, the average of the clock-minute averages of the Balancing Authority’s Area Control Error (ACE) divided by 10B (B is the clock-minute average of the Balancing Authority Area’s Frequency Bias) times the corresponding clock-minute averages of the Interconnection’s Frequency Error is less than a specific limit.

  • Reporting ACE represents a Balancing Authority Area’s (“BAA”) Area Control Error (“ACE”) measured in megawatts (“MW”) as the difference between the BAAs Actual and Scheduled Net Interchange, plus its Frequency Bias Setting obligation and meter error corrections.2 Reporting ACE helps Responsible Entities provide reliable frequency control by indicating the current state of the entity’s contribution to Reliability.

  • Reliability Corp., Order No. 788, 145 FERC ¶ 61,147 (2013).control and reliability indicator – Reporting Area Control Error (“Reporting ACE”).

  • This standard establishes requirements for Balancing Authority Automatic Generation Control (AGC) necessary to calculate Area Control Error (ACE) and to routinely deploy the Regulating Reserve.


More Definitions of Area Control Error

Area Control Error or “ACE” means the instantaneous difference between a control area’s net actual interchange and net scheduled interchange, taking into account the effects of frequency bias and correction of measurement errors.
Area Control Error means the instantaneous difference between a Balancing Authority’s net actual and scheduled interchange, taking into account the effects of Frequency Bias and correction for meter error.
Area Control Error means the mismatch between the instantaneous demand and supply of a control area which combines the frequency error and the tie line schedule error;
Area Control Error or “ACE” means the instantaneous difference between a Balancing Authority’s net actual and scheduled interchange, taking into account the effects of Frequency Bias and correction for meter error.
Area Control Error means the instantaneous difference between actual interchange and scheduled interchange, taking into account the effects of frequency bias, time error and unilateral inadvertent interchange if automatic correction is part of the automatic generation control of the interconnected electric system, and a correction for metering error. “area control error” means the instantaneous difference between actual interchange and scheduled scheduled interchange, taking into account the effects of frequency bias, time error and unilateral inadvertent interchange if automatic correction is part of the automatic generation control of the interconnected electric system, and a correction for metering error. Comment # 1: Insert Comments / Reason for Position (if any)

Related to Area Control Error

  • Disturbance Control Standard or “DCS” shall mean the reliability standard that sets the time limit following a disturbance within which a balancing authority must return its Area Control Error to within a specified range.

  • Operational Control means Security monitoring, adjustment of generation and transmission resources, coordinating and approval of changes in transmission status for maintenance, determination of changes in transmission status for reliability, coordination with other Balancing Authority Areas and Reliability Coordinators, voltage reductions and load shedding, except that each legal owner of generation and transmission resources continues to physically operate and maintain its own facilities.

  • Control Area(s) means an electric power system or combination of electric power systems to which a common automatic generation control scheme is applied.

  • Prospective contractor means a person who is subject to the competitive sealed proposal process set forth in the Procurement Code or is not required to submit a competitive sealed proposal because that person qualifies for a sole source or a small purchase contract.