Transcript NASPI update JSIS 030215

NASPI overview and update
Alison Silverstein
NASPI Project Manager
[email protected]
WECC JSIS
March 3, 2015
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Overview
• Updates
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October 2014 NASPI meeting
March 2015 NASPI meeting
Model validation paper
Equipment mis-operations paper
Current NASPI priorities and concerns
• Synchrophasor software exchange
• Synchrophasor maturity model
• Preview – EPRI presentation on synchrophasor
technology for stability analysis
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Meeting updates
October 2014 NASPI meeting
• Theme – what we’ve learned from the SGIG
projects
• Technical sessions – operations; big data
• Technical workshop – oscillation detection and
voltage stability tools comparison
March 2015 NASPI meeting
• Theme – research advances – 80 (!) presentations
and posters
• Technical focus – renewables; distribution
• Technical workshop – state estimation &
synchrophasors
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Paper updates
• Model validation
– Focus – using PMU data to validate and calibrate
models of power plants and other grid assets, to
improve operating reliability, planning accuracy, and
lower costs
– Paper being shortened, should be completed and
published by DOE before the March NASPI meeting
• Equipment mis-operations
– Focus – using PMU data to identify grid assets that are
failing or mis-behaving, to improve operational
reliability and avoid emergency replacement costs
– Paper and summary to be completed and published
by DOE before March NASPI meeting
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Synchrophasor software exchange
NASPI-curated, PNNL-hosted collection of FREE software
that can be used for synchrophasor-related uses,
including:
• Analytical applications using PMU data
• Data cleaning
• Communications network management
• Device and network commissioning
• Cyber-security
Software to be posted on GitHub and other host sites, but
collected and organized on NASPI Software Exchange site
Software must be free to consumers, but they must obey all
contributor-specified intellectual property restrictions.
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NASPI
Proposed Maturity Model for
Synchrophasor Deployment
Alison Silverstein (NASPI)
Ryan Quint (Dominion Virginia Power)
Kyle Thomas (Dominion Virginia Power)
Dmitry Kosterev (BPA)
WECC Joint Synchronized Information Subcommittee
Meeting (JSIS)
April 2015
These are semi-new ideas
This proposed framework needs your
review and thoughtful feedback, please!
Why a maturity model for
synchrophasor technology?
1. It’s a useful roadmap for effective
synchrophasor deployment
2. It highlights the important role of business
practices and institutional support in
successful technology adoption and
deployment
3. It’s useful as an organizational selfassessment tool
4. It can foster consensus around the path to full
technology integration and effectiveness
Key pillars in synchrophasor
technology maturity
Infrastructure
Hardware -- PMU and PDC deployment
Security and cyber-security
Institutional infrastructure – technical interoperability
standards, regulatory acceptance
Communications
Data delivery networks – quality and scope
Interoperable architecture and systems
Data quality
End-to-end collection and delivery of accurate data
Detection of bad data
Metrics and measurement
Analytics and
utilization
Applications that perform useful functions effectively
Applications that users value, want and use
Business
practices
Commitment and ownership
Training
Maintenance and support
Data-sharing
Maturity level definitions
• Level 5: Integrated, highly mature
– Highly operationalized usage
– Full business processes and institutional support for
system and uses
• Level 4: Operationalized
– High levels of reliability and robustness
– Focus on operational or business uses & value
• Level 3: Implementation
– Growing deployment, improvement, debugging process
• Level 2: Development
– Developing tools, techniques, processes, infrastructure
– Prototyping and proving effectiveness
• Level 1: Conceptualization
Proposed Synchrophasor Maturity
Matrix
Infrastructure
Level 5
Integrated,
highly mature
Level 4
Operationalized
Level 3
Implementation
Level 2
Development
Level 1
conceptual
Communications
Networks
Data Quality
Applications
Business processes
Infrastructure
Communications
Network
Data Quality
Applications &
Utilization
INSTITUTIONAL SUPPORT
* Each pillar needs to be assessed uniquely, and in conjunction with others
* Institutional support is an integral part of each of these pillars
* It is the ultimate level of maturity
Some considerations:
• Different pillars are maturing at different paces;
some are harder, slower (standards), or require more
money or technology, or have regional differences.
• A company may advance in one pillar more quickly
than in others.
• Company maturity differs from technology maturity.
Infrastructure
Level 5
Integrated, highly mature
Level 4
Level 3
Level 2
Level 1
conceptual
Commns
Networks
Data Quality
Applications
Feedback & discussion
• We think this could be a useful tool to help
understand synchrophasor technology
adoption pace and differences.
• We are looking for your feedback to help
develop this framework.
• Please provide and comments/feedback to:
– Ryan Quint – [email protected]
– Alison Silverstein – [email protected]
Synchrophasor-Based Stability
Assessment Tools
Alison Silverstein
NASPI Project Manager
EPRI Grid Operations & Planning Advisory Council
March 4, 2015
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Overview
• NASPI intro
• PMU data for state estimation
– Works better with PMU-based model validation
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PMU tools for oscillation detection
PMU tools for voltage stability monitoring
PMU tools for frequency response monitoring
PMU tools for rotor angle stability monitoring
Conclusions
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What’s NASPI?
The North American SynchroPhasor Initiative is a collaborative effort
between the electric industry, government, vendors & academia to
advance the adoption and value of synchrophasor technology for
grid reliability and efficiency
• 900+ members, international scope
• Two meetings/year plus technical workshops
• Begun in 2005; 2007-2013 funding from NERC; funded shifted to DOE in
2014 with EPRI support
Accomplishments
• Developed key standards and guidelines for synchrophasor technology
• Pushing technology on PMU device functionality, network design, data
quality, applications needs, and more
• Guidance and lessons learned for ARRA-SGIG and demo projects
Archives at www.naspi.org
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State estimation tools
State estimation tools are the foundation for PMU-based
power system analysis efforts.
The system and asset models within state estimation tools
can be improved through model validation and
calibration against recorded PMU data.
• NASPI workshop on model validation in October 2013;
DOE-NASPI technical paper out in March 2015
Over the past year, there have been major advances in the
development of linear state estimators using PMU data
and improvements to existing state estimators
incorporating PMU data.
NASPI workshop on state estimation on March 25, 2015
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Oscillation detection tools
Desired functionality for PMU-based oscillation detection
tools:
• Scans voltages, power and frequency at interties, power
plants, DC ties, wind hubs for sustained oscillations in key
frequency bands
• Alarms when a sustained oscillation is detected with
detailed modal analysis
• Trend displays available for problem drill-down
• Facilitate decision support tools for grid management
• Engineering support applications for baselining and
setting alarm thresholds
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Oscillation detection tools
Comparison of (mostly) commercially available oscillation
detection tools at NASPI October 2014 technical workshop.
Examine tool performance against two real cases – five
sequential oscillation ringdown events (5 vendors) and
generator-caused forced oscillation (5 vendors).
Conclusions
• PMU-based oscillation detection tools are maturing quickly
• Diverse analytical methods underlying the OD tools, and
results vary.
Source:
NASPI
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Sample screens from NASPI oscillation
detection tools test
SEL
ABB
Alstom
Grid
EPG
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Analyze oscillatory modes and events
Mode monitors in use at WECC,
BPA, ISO-NE, ERCOT, PJM, MISO,
CAISO, Duke Carolinas, FPL, others
Recent WECC discoveries about interconnectionwide modes
[Source: JSIS meeting 10/13]
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Voltage stability tools
Desired functionality for PMU-based voltage stability tools:
• Identify voltage instability events and characteristics,
including time of event start and inflection points,
locations of voltage problems, real and reactive power
margins.
• Identify insecure N-0 and N-1 operating conditions,
reason for unacceptable condition, and security and
stability margins.
• Enable decision support tools for voltage stability
protection
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Voltage stability tools
NASPI technical workshop comparing commercially
available voltage stability analysis tools in October
2014.
• Tested stability tools against a wind hub-caused
voltage excursion (5 vendors) and a load center
voltage stability case including contingency analysis
(2 vendors)
• Results – wide variations in analytical conclusions of
events. Tools using PMU data in linear state
estimation-contingency analysis models outperformed those doing measurement-only analysis.
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Sample screens from NASPI
voltage stability tool test
Alstom Grid
V&R Energy
ABB
EPG
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Frequency response monitoring
Desired functionality for PMU-based frequency response
analysis tools:
• Detect under-frequency events
• Detect areas where the generation loss occurred
• Frequency response baselining – interconnection-wide or
for balancing authority
• Compliance with NERC BAL-003 Frequency Response
Reliability Standard
Early stage frequency monitors
• BPA
• Dominion
BPA Frequency
Disturbance Monitor
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Rotor angle stability tools
Desired functionality:
• Monitor the torque balance between mechanical
input and electromagnetic output in a prime mover
• High resolution, time-synchronized measurement of
the rotor shaft angle
• Determine safe operating zones
• Alarm when potential imbalance conditions could
result in stability risks and rotor harm
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Rotor angle stability monitor
SDG&E-SEL-OSIsoft-UCSD
research project using
PMUs inside a combined
cycle plant for rotor
speed & angle
measurement and field
measurement –
monitoring equipment
installed early 2014
Data collection, model
validation and parameter
measurement to follow
Source: SDG&E
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Sources and more information
NASPI website and archives: www.naspi.org
NASPI model validation technical workshop -October 2013 at https://www.naspi.org/techworkshops
NASPI oscillation detection and voltage stability technical workshop – October
2014 at https://www.naspi.org/techworkshops
NASPI state estimation technical workshop – March 2015 at
https://www.naspi.org/techworkshops
SDG&E presentation on rotor monitoring -- October 23, 2014 at
https://www.naspi.org/meetings
Coming soon to www.naspi.org:
• New papers on using synchrophasor data for model validation and
diagnosing equipment mis-operations
• NASPI Synchrophasor Software Exchange
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