Transcript NERC and Compliance Overview

NERC and Compliance
Overview
COMBINED CYCLE GENERATION
MODELING KICK-OFF
AUGUST 14, 2002
Mark Henry, ERCOT, 512-225-7021
WHAT IS NERC, WHY DO I
CARE?
• Stakeholder organization in the electric power
industry
• Generates standards and policies for reliability
of the bulk electric system
• Will enforce the above, with monetary and
other penalties if necessary
NERC-ERCOT Document
Relationships
SB7 &
PUCT
Rules
Market Participant
Procedures
ERCOT
Procedures
ERCOT
Protocols
ERCOT
Operating
Guides
NERC Policies
& Standards
Working Group
Procedures
NERC Compliance Program
• 4 step process – develop, post, field test,
evaluate
• ERCOT – NERC enforcement contract
• Consolidation into “Organizational Standards”
PGC Self-Certification for
NERC Compliance Program
Phase 3 2001
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Modelling of facilities
Voltage issues
Protection and control
Governors
Modelling Data
• Power system modelling forms, same as
ERCOT Generation Interconnect
Procedure
• Include generators, transformers and
associated equipment
• Dynamics models in PTI format
Voltage Issues
• Automatic voltage regulators and power
system stabilizers continually in service
• Voltage profiles at high side of
transmission level step-up transformer
• Transformer tap change requests
Transient Withstand
• Frequency – allow load to trip first, three steps
down to 58.5 Hz
• Voltage – 5% continuous, 10 % for up to 10
seconds
• Volts/hertz – less than 116% for up to 1.5
seconds
• Transmission faults – remain connected if
cleared by primary transmission
Protection Issues
• Misoperations analysis and correction
• Generator protection system maintenance
and test plans, with records of
implementation
Other PGC Compliance Issues
– For Later Discussion
• Operational concerns – outage coordination, real
time data, emergency plans (QSE)
• Disturbance monitoring for facilities with more
than 150 MW connected (on transmission
equipment)
• Testing of units – seasonal and biannual
reactive/AVR – from Protocols 6.5
Transmission Compliance
• Building of complete system models, with
equipment limits
• Assessment of ability to provide normal and
single contingency operation
• Operation within security criteria (TSOLV)
• Real time data, outage coordination, emergency
plans, etc.
• Protection misoperation analysis, testing and
disturbance monitoring
SOURCES OF
INFORMATION
• www.nerc.com
• www.ercot.com
• Regional representatives in the NERC
committees and subcommittees
• ERCOT stakeholder groups
• Protocols, Operating Guides, and various
procedures
Summing it up ….
• Protocols and NERC define the rules of the
road for the ERCOT bulk system
• Generating facility characteristics need to be
reviewed against these expectations
• Failure to comply may result in fines,
undesirable publicity or even breach of contract
with ERCOT. Reliability rules will be
enforced.