supporting electric distribution system operations€¦ · • 28k wire miles of primary...
TRANSCRIPT
Supporting
Electric Distribution System Operations
andSmart Grid Implementation
with
GIS2015 EGUG Conference
• Distribution System Model Manager• 20 years experience in utility GIS
Your Presenter – David Pandl
... not an electrical engineer
2015 EGUG Conference
What I’m going to talk about …
• Intro to PPL Electric Utilities• Description of PPL’s GIS (EFD)• Smart Grid• Distribution Management System (DMS)• How EFD and associated processes have
evolved to meet emerging needs
2015 EGUG Conference
• feeders (circuits) and Feeder Manager• connectivity … electric style• tie and sectionalizing devices• protective devices … breakers, reclosers, fuses• database versions• conflict and reconcile• posting• partial post concept (constructed edits)• valid values and QA rules
Terminology Alert!
2015 EGUG Conference
• Schneider Electric Software (ArcFM/Designer)• SDE with Oracle Database• 1.12M poles• 400K transformers• 28K wire miles of primary distribution• Data source for “downstream systems”:
• Outage Management System (OMS)• Distribution Management System (DMS)• Mobile Tablets (MOM)
EFD – Electric Facilities Database
2015 EGUG Conference
• 100 concurrent users/editors• 8000+ versions … 7700+ of which are designs• Some designs are over 4 years old• Approx. 500 designs in conflict• Average 75 designs posted per day• Designs triggered to “autopost” based on
status change in Work Management software (WAM) … unless they are “Tier 1” designs
EFD – Electric Facilities DatabaseDesigner
2015 EGUG Conference
EFD – Electric Facilities Database
normally open tiemotorizedair break switch
normally closed sectionalizing recloser
2015 EGUG Conference
Smart Grid - Definition
The Smart Grid is a modernized electric distribution system that combines advanced communications and controls to create a responsive and resilient network. It provides the basis for increased reliability and efficiency.
2015 EGUG Conference
• Smart Meters• Infrastructure
• $200M annual investment (field components)• 3200 control devices installed … 7000
ultimate build out• Creating new feeder tie configurations
• Software to manage distribution system (DMS)• Improving EFD to conform to DMS requirements• Permanent staff positions to support data model
Smart Grid – Key Components(PPL)
2015 EGUG Conference
• Alstom Software• Allows System Operators (SOs) to monitor
conditions and remotely control devices in the field
• Identifies the most likely location of faults based on device feedback (previously relied largely on customer calls)
• Alerts operators, via alarms, when a condition arises that is out of normal operating range.
• Provides analysis on loading and power flow characteristics.
Smart Grid – DMS Highlights
2015 EGUG Conference
• Ability to run operational scenarios in “study” mode.
• Self Healing capability (future)• Primary requirement to maintain an “Operational
Model” that is in sync with current field conditions.
• Brought about the obsolescence of paper maps.• Fairly steep and on-going learning curve.
Smart Grid – DMS Highlights … continued
2015 EGUG Conference
Smart Grid … Demonstration
customer tally980 out of power815 restored
2
1
fault
2015 EGUG Conference
Smart Grid … Demonstration
customer tally489 out of power1306 restored
3
4
fault
2015 EGUG Conference
• Significant effort to improve data prior to DMS release• conductor size/type• URDs
• Resulted in many requests for field verification• Required new …
• symbols/subtypes• fields/valid values (look up tables)• QA rules
• Comparable effort on “downstream applications”• Presentations to the user community
Smart Grid –> EFD Enhancements
2015 EGUG Conference
• Concept of Tier 1 Designs• designs that are of consequence to SOs• managed by Model Managers• do not autopost• approximately 10% of all designs are Tier 1
• Constructed Edits• temporary edits used in lieu of “partial post”• edits attributed to the associated design• purged via conflict resolution when associated design
is ready to post
Smart Grid - Support
2015 EGUG Conference
• Model Manager – new staff positions to support data accuracy and timeliness • primary point of contact for data issues …
straddles design and operations• own all Tier 1 designs … makes sure they are
accurate, free of QA errors and conflicts• daily check of previous night’s update process• repeatedly check data integrity over the course
of the business day
Smart Grid – Support … continued
2015 EGUG Conference
Conclusion• Model Managers in place to ensure real time
data reliability (2 new staff positions)• Designers do better work … more aware of
consequences• SOs are increasingly confident that data is
correct and current• Data Quality continues to improve• Better data means more effective DMS analysis
2015 EGUG Conference