smart uses of data in smart grids · data “explosion” the business value of data integrative...
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Smart Uses of Data in
Smart Grids
Mladen Kezunovic
Texas A&M University, USA
Keynote Lecture
ISGCE 2013
Jeju Island, Korea
July 8, 2013
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Outline
• Background
• Data Properties
• Translational Knowledge
• Implementation
• Q/A
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BACKGROUND
Data “Explosion”
The Business value of data
Integrative view
Technology landscape
M. Kezunović, J. McCalley, T.J. Overbye, “ Smart grids and beyond: Achieving the
Potential of Electricity Systems,” Invited Paper, IEEE Proceedings, Vol.100, Special
Centennial Issue, pp.1329-1341, May 13 2012.
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Intelligent Grid
Technology Hype Cycle
Technology TriggerPeak of
Inflated ExpectationsTrough of Disillusionment
Slope of EnlightenmentPlateau of
Productivity
time
visibility
Years to mainstream adoption:
less than 2 years 2 to 5 years 5 to 10 years more than 10 yearsobsoletebefore plateau
As of June 2008
RF Networks for Utility Field Applications
AdvancedDistribution
Protection andRestoration
Devices
Intelligent Electronic Devices
Broadband Over Power Lines
Demand Response
Advanced Metering Infrastructure Residential/Domestic
Active RFID for Utilities
Customer Gateways
Combined Heat and Power
Provider Energy Storage
Advanced DistributionManagement Systems
Business ProcessManagement for Energy
Smart Appliances
Web 2.0 for Utilities
Phasor MeasurementUnits
Distributed Generation
Plug-In Hybrid ElectricVehicle
Consumer Energy Storage
Home-Area Network CIM-Driven Integration Standards
Passive RFID for Utilities
Advanced Metering LC&I
Process Data Historians
Controllability
Observability
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The business
value of data
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Integrative view
Data
Technologies
Application
Solutions
Business Cases
Integrating smart, wise, intelligent, future, modern, perfect, empowered
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10 IT technologies
in 2013• Mobile devices
• Mobile Apps and HTML5
• Personal Cloud
• The Internet of Things
• Hybrid IT and Cloud Computing
• Strategic Big Data
• Actionable Analytics
• Mainstream In-Memory Computing (IMC)
• Integrated Ecosystems
• Enterprise App Stores
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DATA PROPERTIES
Future Electricity Grid
Grid Events
Operating States
Temporal and Spatial Aspects
Data Types
M. Kezunović, A. Abur, “Merging the Temporal and Spatial Aspects of Data and
Information for Improved Power System Monitoring Applications,” IEEE Proceedings, Vol.
9, Issue 11, pp 1909-1919, 2005.
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Future Electricity Grid
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Grid Events
Power System StatesPower System States Contacts Switching Causing Changes
Contacts Switching Causing Changes
Circuit Breaker Switching
Auto-reclosing Sequence
Switching by Various Controllers (FACT, etc.)
Models Reflecting Various States
Models Reflecting Various States
Power flow and State estimation
Short circuit calculation
Time domain EMTP
Stability (transient, voltage, small signal, etc)
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Transients
Dynamics
Steady State
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Type ConfigurationMarket
Parameters
NormalAll MPs active
Complete config.Within Limits
EmergencyAll MPs active
Complete config.
Parameter(s)
violate the limits
RestorativeStructure
incompleteWithin limits
*MPs (Market Participants) include generator
companies, transmission owners, load serving entities
and other non-asset owners such as energy traders.
Operating States
System and Market Operating States
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Time and space
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Local events sensed by
substation equipment
Global events sensed by wide-
area measurement systemCorrelating
space and time
matters
Models to data
match
Faults
Changes in
switching
state
Out of step
(between
equivalents)
Stability
(various
types)
Cascading
events
Frequency
and voltage
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Temporal Issues
©2012 Mladen Kezunovic, All Rights Reserved
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Temporal Issues
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Past Present Future
Historical DataHistorical Data Real-time DataReal-time Data Planning DataPlanning Data
Data with different time perspectives
Data with different time perspectives
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Temporal Issues
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Difference between time correlation
Synchronous SamplingScanning (relative)
Time Stamping
(absolute)
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Temporal Issues
Phasors in Relaying
(triggered sampling)
Measurements through moving
data window
Relay calculated
phasorsCompare with settings
Phasors in Monitoring
(continuous sampling)
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Spatial Issues
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IEDs data
format
PMUs data
format
Other data
format
COMTRADE
data format
COMTRADE
data format
Synchro-phasor
data format
Synchro-phasor
data formatNaming
Convention
Naming
ConventionSynchro-
sampling data
format
Synchro-
sampling data
format
Uses of data: driven by applications
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Local (substation-wide)
Spatial Issues
Broad (system-wide)
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Spatial issues
(System wide)
(Inter-station
General Communications
(IP-based schemes)
Intra-station
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Spatial issues (local)
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Markets
Oil and Electricity Monthly Average Price
Jan-0
5
Mar-
05
May-0
5
Jul-
05
Sep-0
5
Nov-0
5
Jan-0
6
Mar-
06
May-0
6
Jul-06
Sep-0
6
30,00
40,00
50,00
60,00
70,00
80,00
90,00
IPEX baseload (euro/MWh) Brent (euro/bbl) WTI (euro/bbl)
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Animals
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GIS and GPS
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Weather
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TRANSLATIONAL KNOWLEDGE
Sampled data
Synchrophasor Data
Operational/nonoperational data
Big Data
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Case studies
Application Temporal Spatial Model
Optimal Fault
Location
Synchronized or
unsynchronized
phasor or sample
vector
Local and system-
wide
Power System
Network for short
circuit study
Intelligent Alarm
Processing
Synchronized or
unsynchronized
phasors
Substation and
system-wide
Petri-Net Logic for
cause-effect
representation
Inherently
Adaptive Fault
Detection and
Classification
Synchronized
sample vectorLocal
Power system
model for training
pattern clustering
©2012 Mladen Kezunovic, All Rights Reserved
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Fault Location
• Phasor based Methods
Use fundamental frequency component of
the signal and lumped parameter model
• Time-domain based Methods
Use transient components of the signal and
lumped or distributed parameter model
• Traveling wave based Methods
Use correlation between the forward and
backward travelling waves along a line or
direct detection of the arrival time
oSynchronized
oUnsynchronized
oSingle end
oDouble end
oPhasors
oSamples
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Alarm Processor
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Inherently adaptive
event detection
©2012 Mladen Kezunovic, All Rights Reserved
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Big Data and Analytics
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IMPLEMENTATION
Cyber-Physical security
Privacy
Standardization
Testing and certification
M. Kezunovic, et al., "Smart Grid Barriers and Critical Success Factors," Chapter on Smart
Grids: Infrastructure, Technology, and Solutions, Stuart Borlase, Editor, CRC Press, 2012
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Cyber security
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Privacy
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The role of standards
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Interoperability
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©2013 Mladen Kezunovic, All Rights Reserved
Standards Landscapefor synchrophasors
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Procedure: how to test?
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Why Testing and
Certification Matters
©2013 Mladen Kezunovic, All Rights Reserved
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Process: how to certify?
Why T&C Matters
©2013 Mladen Kezunovic, All Rights Reserved
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Smart grid center:
http://smartgridcenter.tamu.edu/sgc/
EV-TEC:
http://ev-tec.org
PSerc:
http://www.pserc.org
ARPA-E:
http://smartgridcenter.tamu.edu/ratc/
Smart Energy Campus Initiative:
http://smartgridcenter.tamu.edu/seci/
FYI
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Q/A
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Q/A
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Mladen Kezunovic
Dept. of Electrical and Computer Engineering,
Texas A&M University
College Station, U.S.A.
http://smartgridcenter.tamu.edu/pscp_kezunovic/
Thank you!
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