epri smart distribution and pq 2012-06-06
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How Important is GIS Data Quality to the Modern Grid?
Robert J. Sarfi, Michael K. Tao, J. Baker Lyon
Boreas Group
John J. Simmins
EPRI
2012 PQSD Conference – San Antonio
June 6, 2012
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2© 2012 Electric Power Research Institute, Inc. All rights reserved.
EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
Contents
1. Introduction
2. Asset Management
3. Data Quality
4. GIS Data
5. DMS / OMS Data
6. CMMS Data
7. Conclusion
3© 2012 Electric Power Research Institute, Inc. All rights reserved.
EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
1. Introduction
“Process automation is limited by our
incomplete and inaccurate
operational data.”
“We have minimal ability to accurately
and quickly measure our
business performance.”
“We react slowly to shifting work
volumes due to manual resource
allocation processes.”
“Process standardization is
limited by vertically integrated systems.”
“We execute simple business tasks with high skill and high
cost resources.”
“We react inconsistently to information
requests.”“We have costly and inconsistent
asset management processes.”
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
WorkMgt.
BI / Analytics
MobileGIS
2. Smart Grid Systems
Mobile Workforce
WorkOptimization
Mobile GIS
IVR
DMS / OMS
SCADA
DistributionAutomation
AMI
Demand Response
MaterialsMgt.
Maint.Mgt.
EngineeringAnalysis
GISMapping
GraphicDesign
Asset Management
Op
erat
ion
s
Man
agem
ent
CIS CRM
Customer Management
Customer
Empowerment
ExecutiveInformation
System
Central Databases
SCADA GIS MDMS CMMS
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
DMS
2. How Data Enables Workflows
NetworkAnalysis
WMS
Planning &Engineering
Distribution Automation
Schedule andDispatch
Work Order Drafting& Design
AMI(MDM)
Home Automation and Demand
Response
ServiceRestoration
OMS
CMMS
Maintenance &Construction
WirelessMobile
Enablement
AMIMDMS
GIS
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
2. Smart Distribution - Operational Operatives
• Reliability• Resource optimization• Demand / load optimization• Power quality optimization• Customer service• Equipment lifecycle cost of
ownership• Equipment criticality• Staff utilization/skill set• Capital expenditures• Operations and maintenance
expenditures.
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
3. Common Data Quality Issues
•Corrupted (time sensitive, inaccurate)
•Redundant data (unplanned)• Inability to correlate/cross-reference
•Gaps•Lack of knowledge of available data
•Access/security
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
3. Causes of Data Issues
Data Maintenance• Ambiguous definition of data ownership
and access rights• Poor data quality control processes /
practices• Deferred data update and maintenance.
Data Repositories
Initial Data Quality
• Poor quality source data• Incomplete data migration and
conversion from paper maps, asset ledgers and field data collection.
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
4. Spatial (GIS) Data Registry
Asset• Identification• Attributes• Connectivity• Location
Customer• Service Address• Service Facilities
Environmental• Landbase• Rights and
Access• Administrative
H1 – Asset History
N1 – System DataC1 – Customer Information
L1 – Landbase
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
4. GIS Data Issues
• Gaps
• Redundancies with other systems
• Workflows pertaining to new construction and maintenance
• Lack of currency with system “as-built
• Inaccuracies with the field
• Inaccurate or unavailable land-base
• Customer to transformer connectivity by phase is in doubt
• GIS model itself allows for “bad” data
• Data dependencies and the “ripple effect” of bad GIS data
• What is included in the GIS, level of detail, best practices
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
4. Automating Phase Identification
Correlating Voltage
AMI Voltage
Data
SCADA Voltage
Data
Customer Phase ID
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
4. Phase Identification Example
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
4. Benefit: Operational Efficiencies
• Improved safety due to more accurate facilities records
• Reduction in the overall cost of maintaining the GIS system as a whole
• Efficiencies in implementing and troubleshooting AMI communications issues
• Improved OMS and DMS benefit• Improved crew efficiencies due to
improved distribution system representation
• Improved load forecasting• More accurate system planning• Reduced work order cycle times.
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
5. DMS / OMS Data
Facility• Identification• Type• Connectivity• Location
Customer• Service Address• Service Facilities
Environmental• Landbase• Rights and
Access• Administrative
T1 – Technical
N1 – Network SystemC1 – Customer Information
L1 – Landbase
Administrative• Operations• Procedures• Safety
A1 – Administrative
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
5. DMS/OMS Data
Attributes TypeNetwork facility characteristics Non Real TimeAs designed network facility connectivity Non Real TimeAs operated network facility connectivity Real TimeLine switch status Real TimeLine protection devices (circuit switchers, reclosers, etc)
Real Time
Substation circuit breaker status Real TimeNetwork status Real TimeName and service information Real Time and Non Real TimeOutage call information Real TimeAutomated call information Real TimeService point (Smart Meter) status Real TimeLandbase data Non Real TimeOperating standards and policies Non Real Time
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6. CMMS Data
• Work orders• Preventive maintenance (PM)• Asset management• Inventory control• Safety
CMMS packages can produce status reports and documents
giving details or summaries of maintenance activities.
The more sophisticated the package, the more analytics are available.
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
7. EPRI GIS Data Quality Survey – Phase 1
Preliminary Findings
• Thirteen utilities participated in the survey.
• Outage management and engineering analysis are the most common uses of GIS data.
• Integration and dependencies vary widely.
• No correlation between integration of the GIS and data quality.
• User are generally confident in the data.• Utilities are doing a better job at
‘completeness’ than ‘accuracy’ of data.• Benefits of ‘good’ data are seen, but
repercussions of ‘bad’ data are not.
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
7. EPRI GIS Data Quality Survey – Phase 1
Survey Result Statistics• Thirteen utilities participated in the survey.
• 36% store all distribution data in GIS, but 66% make use of an asset management system.
• 66% have unique asset IDs, only 27% physically tag the asset in the field.
• 54% felt that data accuracy was 75-90% (64% user confidence in data).
• 63% felt that data completeness was 75-90% (72% user confidence in data).
• Only 9% of utilities have experienced a catastrophic problem due to data, but 56% have enjoyed a benefit of good data.
• While 91% have programs to improve data, only 54% have dedicated staff.
• 73% have automated quality assurance.
• 91% have not seen quality deterioration over time.
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
7. Conclusions
•Data is critical to T&D success•Leverage incremental success•Approach to data management will continue to evolve
•Three things critical to success:
1. Data
2. Data
3. Data
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
Questions?
We’d really like your help with a data quality survey:
http://www.surveymonkey.com/s/EPRI_GIS_Data_Quality_Project_1
Please complete the survey by Thursday, May 15.
21© 2012 Electric Power Research Institute, Inc. All rights reserved.
EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
Contacts
Robert J. Sarfi, Mike K. Tao, and J. Baker Lyon - Boreas Group LLC, Denver, CO 80209 (e-mail: [email protected], [email protected], [email protected] )
John J. Simmins - Electric Power Research Institute, Knoxville, TN 37932 USA (e-mail: [email protected] ).
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EPRI Power Quality and Smart Distribution 2012 Conference and Exhibition
Together…Shaping the Future of Electricity