averting disaster - grid reliability issues and standards
DESCRIPTION
Averting Disaster - Grid Reliability Issues and Standards. National Energy Restructuring Conference April 1, 2004 Washington, DC. NERC Actions to Address the August 14, 2003, Blackout. National Energy Restructuring Conference April 1, 2004 Washington, DC. NERC Control Areas. DC. Voltage. - PowerPoint PPT PresentationTRANSCRIPT
Averting Disaster - Grid Reliability Issues and Standards
National Energy Restructuring ConferenceApril 1, 2004Washington, DC
NERC Actions to Address the August 14, 2003, Blackout
National Energy Restructuring ConferenceApril 1, 2004Washington, DC
3
NERC Control Areas
4 1:31:34 p.m.1:31:34 p.m.
August 14, 2003What Happened?
765kVDC
Voltage
MontrealOttawa
Toronto
DetroitCleveland
AkronCanton
Buffalo
New YorkPittsburg
Toledo
2:02 p.m.3:05:41 to 3:41:33 p.m.3:45:33 to 4:08:58 p.m.4:08:58 to 4:10:27 p.m.4:10:00 to 4:10:38 p.m.4:10:40 to 4:10:44 p.m.4:10:44 to 4:13:00 p.m.
5
Investigation OrganizationNERC Steering
Group
MAAC/ECAR/NPCC Coordinating Group
MAAC
ECAR
NPCC
MEN Study Group
Project Planning and Support
Sequence of Events
Data Requests and Management
Investigation Team Lead
System Modeling and Simulation Analysis
NERC & Regional Standards/Procedures
& Compliance
Transmission System Performance,
Protection, ControlMaintenance & Damage
Operations - Tools, SCADA/EMS
Communications Op Planning
System Planning, Design, & Studies
Root Cause AnalysisCooper Systems
Generator Performance, Protection, Controls
Maintenance & Damage
U.S – CanadaTask Force
Vegetation/ROW Management
Frequency/ACE
Restoration
Investigation Process Review
6
Key Findings of Investigation
7
Causes of the Blackout
● Inadequate Situational Awareness
● Failure to manage tree growth in ROWs
● Failure of Reliability Coordinators diagnostic support
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Violations of NERC Reliability Standards
Failure to return system to safe operating state within 30 minutes
Failure to notify others of impending emergency
State estimator was not used
Inadequate training
Reliability coordinator did not notify others
Reliability coordinator did not have adequate monitoring capability
9
Key Findings● Several violations● Compliance monitoring
process is inadequate● Differing interpretations● Repeats past mistakes● Data deficiencies in models● Planning inadequate● Technologies inconsistent● Communications not
effective
10
NERC Guiding Principles
● Specific information on all violations
● Improve compliance
● Greater transparency to violations
● Work closely with FERC, states, provinces
● Ensure public interest is met
11
NERC Blackout Recommendations
● Corrective actions
● Strategic initiatives
● Technical initiatives
0
400
800
1200
1600
12:00 13:00 14:00 15:00 16:00
Time - EDT
Flo
ws
(M
W)
Harding - Chamberlin
Hanna - JuniperStar - South Canton
Sammis - Star
East Lake 5 Trip
Harding - Chamberlin Line Trip
Hanna - Juniper Line Trip
Sammis - Star Line Trip
Star - South Canton Line Trip
12
Corrective Actions
● Specific actions to correct the direct causes of the blackout
● Certify actions completed by June 30
● Experts to be available to assist
13
Strategic Initiatives
● Readiness audits
● Performance audits
● Vegetation-related outage reporting
● Recommendations implementation tracking
14
Readiness Audits
● Audit all control areas and reliability coordinators
● Conduct every 3-years
● Reports to the board
15
Performance Reviews
● Modify NERC Compliance Enforcement Program Regions to submit results to NERC Provide list of non-compliant entities
● Regular confidential reports to the Board Specific violations Results of audits
16
Vegetation Outage Reports
● Transmission owners to report tree contacts to Regions (230+ kV)
● Regions report to NERC
● Use WECC as model
● Regions to conduct annual vegetation management surveys
17
Recommendations Tracking
● NERC and Regions will track: Implementation of recommendations Compliance audits Lessons learned from system
disturbances Use successful regional processes as
model
18
Technical Initiatives
● Operator & reliability coordinator emergency response training
● Reactive power & voltage control● Cascade mitigation● RC & CA responsibilities● Real-time operating tools● Restoration review● Time-synchronized measurements ● Reevaluate system design, planning & operating
criteria● System modeling & data exchange standards
19
So Where Are We?
●NERC Steering Group – technical investigation is ongoing
●Recommendations approved by NERC standing committees, stakeholders, and Board of Trustees
● Implementing recommendations
●Finalize technical report this spring
20
Issues to be Resolved● Role of FERC, NRCan
● Non-jurisdictional entities
● Funding: resources and $$$
● Migrating old standards to new
● Recommendations in final report
● Voluntary vs. mandatory reliability standards or: Will reliability legislation ever pass??
NERC Actions to Address the August 14, 2003, Blackout
National Energy Restructuring ConferenceApril 1, 2004Washington, DC