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ReliabilityFirst Standard Authorization Request Form
ID
Authorized for
Posting
Authorized for
Development
Title of Proposed Standard:
Generator Verification Data
Reporting Standard
SAR Requestor Information
Request Date March 10, 2006
SAR Type (Check box for one of these
selections.)
Name: Eric Mortenson / Charlie Matassa
Company: Exelon / BG&E
X
New Standard
Telephone: (630) 576-6898
Revision to Existing Standard
Fax : (630) 437-2309
Withdrawal of Existing Standard
E-mail: [email protected]
Urgent Action
Purpose (Provide one or two sentences.)
The purpose of the standard(s) is to ensure that accurate performance and modeling data for
generators is developed and maintained in accordance with NERC requirements for the RRO.
These data to be developed include generator gross and net real and reactive power capability
and parameter data for generator modeling in system dynamics studies.
Industry Need (Provide one or two sentences.)
The industry needs to have accurate data for effectively modeling the bulk electric system in
studies conducted to analyze the networked electric system. Therefore, testing of generator
performance and dynamics modeling data and the proper reporting of the results of the testing
for inclusion in system models is necessary.
Brief Description (A few sentences or a paragraph.)
The Standard(s) must address the requirements placed on the RRO by NERC Standards MOD013-0, MOD-024-1, MOD-025-1, MOD-026-1, and MOD-027-1. The standard drafting team
should consider the value of identifying separate standards for several of the parameters in order
to expedite the implementation of real and reactive output verification. To this end, the
Standard(s) should establish standards for the verification / testing of real and reactive
requirements of all generator owners for testing and verifying gross and net real and reactive of
each unit on the system. The Standard(s) should also set requirements for the testing and
reporting of generator dynamics modeling data for generator rotors; excitation system functions
including voltage regulator controls, limiters, compensators, and power system stabilizers; speed
governor response data; and modeling data for any other equipment required to determine an
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accurate determination of system dynamic performance in the transient timeframe. The
Standard(s) should also include detailed requirements for reporting modeling data and the
results of generator testing. If any generators are to be exempt from the Standard, such
requirements for an exemption must be clearly defined. This standard(s) must create a uniform
philosophy across the entire RFC footprint.
Reliability Functions
The Standard will Apply to the Following Functions (Check box for each one that applies.)
Reliability Coordinator
Ensures the reliability of the bulk transmission system
within its Reliability Authority area. This is the highest
reliability authority.
Balancing Authority
Integrates resource plans ahead of time, and maintains
load-interchange-resource balance within its metered
boundary and supports system frequency in real time
Interchange Authority
Authorizes valid and balanced Interchange Schedules
Planning Authority
Plans the bulk electric system
Transmission Service
Provider
Provides transmission services to qualified market
participants under applicable transmission service
agreements
Transmission Owner
Owns transmission facilities
Transmission Operator
Operates and maintains the transmission facilities, and
executes switching orders
Transmission Planner
Develops a long-term (generally one year and beyond)
plan for the reliability (adequacy) of the interconnected
bulk electric transmission systems within its portion of
the Planning Authority Area
Resource Planner
Develops a long-term (generally one year and beyond)
plan for the resource adequacy of specific loads
(customer demand and energy requirements) within a
Planning Authority Area.
Distribution Provider
Provides and operates the “wires” between the
transmission system and the customer
Generator Operator
Operates generation unit(s) or runs a market for
generation products that performs the functions of
supplying energy and Interconnected Operations
Services
X
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Purchasing-Selling Entity
X
X
Generator Owner
The function of purchasing or selling energy, capacity
and all necessary Interconnected Operations Services
as required
Owns and maintains generating units.
Load-Serving Entity
Secures energy and transmission (and related
generation services) to serve the end user
Regional Reliability
Organizations
An entity that ensures that a defined area of the Bulk
Electric System is reliable, adequate and secure. 2. A
member of the North American Electric Reliability
Council. The Regional Reliability Organization can
serve as the Compliance Monitor.
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Detailed Description (Provide enough detail so that an independent entity familiar with the
industry could draft a Standard based on this description.)
In order to meet NERC requirements, the Standard must include criteria for:
 reporting generating unit auxiliary loads
 acceptable methods for model and data verification, including any applicable conditions under
which the data should be verified
 periodicity and schedule of model and data verification and reporting
 information to be verified and reported
 seasonal gross and net Real Power generating capabilities
 real power requirements of auxiliary loads
 the requirement for unit-specific dynamics data for generators and synchronous condensers
(including, as appropriate to the model, items such as inertia constant, damping coefficient,
saturation parameters, and direct and quadrature axes reactances and time constants),
excitation systems, voltage regulators, turbine-governor systems, power system stabilizers,
and other associated generation equipment
 the use of estimated or typical manufacturer’s dynamics data, based on units of similar design
and characteristics when unit-specific dynamics data cannot be obtained; however, in no case
shall other than unit-specific data be reported for generator units installed after 1990
 unit size thresholds for permitting
o the use of non-detailed vs. detailed models
o the netting of small generating units with bus load
o the combining of multiple generating units at one plant
 requirements for device specific dynamics data for dynamic devices, including, among others,
static VAR controllers, high voltage direct current systems, flexible AC transmission systems,
and static compensators
 dynamics data representing electrical demand characteristics as a function of frequency and
voltage
Dynamics data shall be consistent with the reported steady-state (power flow) data supplied per
Reliability Standard MOD-010-0_R1 method of verification for all data, including dates and
conditions of tests
Reporting requirements must be established for:
 verified maximum gross and net Reactive Power capability (both lagging and leading) at
Seasonal Real Power generating capabilities as reported in accordance with Reliability
Standard MOD-024 Requirement 1.5.1
 verified Reactive Power limitations, such as generator terminal voltage limitations, shorted
rotor turns
 verified Reactive Power of auxiliary loads
 method of verification of Real and Reactive Power capabilities, including dates and conditions
 testing of generators for dynamic modeling data and the reporting of such data
If any exemptions from reporting of the above data are permitted, generating unit exemption
criteria must be established. A list of units that are exempt from a portion or all of these
procedures must be documented along with the justification of the exemption.
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Related Standards
Standard No.
MOD-013-0
Explanation
NERC – ‘RRO Dynamics Data Requirements and Reporting Procedures’
MOD-024-1
NERC – ‘Verification of Generator Gross and Net Real Power Capability’
MOD-025-1
NERC – ‘Verification of Reactive Power’
MOD-026-1
NERC – ‘Verification and Modeling of Generator Excitation Systems and
Voltage Controls’
NERC – ‘Verification and Status of Generator Frequency Response’
MOD-027-1
MAIN Guide
3A
MAIN Guide
3C
MAIN-‘Procedure for the Uniform Rating of Conventional Generating Equipment’
ECAR
Document 4
MAAC
Document B10
ECAR-‘Criteria and Method for the Uniform Rating of Generating Equipment’
MAIN-‘Procedure for the Uniform Reactive Rating of Generating Units and
Synchronous Condensers’
MAAC-‘Planning Requirements for Generators’
Related SARs
SAR ID
Explanation
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Implementation Plan
Discussion Items (Describe any issues which need to be resolved due to differences in
existing RRO practices.)
Presently, MAIN, ECAR, MAAC and MRO have generator testing requirements for Real and
Reactive Power verification in place. To the extent that the new Standard affects the
requirements or timing for generator testing, a reasonable transition period must be allowed.
However, all new testing requirements must be in place no later than January 1, 2008 at which
point all associated legacy documents will be retired.
Proposed Implementation
days after Board of Directors adoption or
on (date):
Assignments
Assignment
D2ST Members
Others (describe)
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