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Integrating Automated Metering Infrastructure (AMI) with GIS to Predict
Electrical Outages
Presentation by: Allen Cousins – Senior GIS Analyst [email protected]
Acknowledgments:Erik Lee – Electrical Engineer Robert Cloward – GIS AnalystFrank Hardisty, Ph.D. – Penn State Univ. Josh DiLuciano – Electrical Engineer
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Overview
• Background
• Outage Prediction
• Implementation
• Future
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Background
Established 1889
355,000 Electric Customers
314,000 Gas Customers
26,400 Sq. Miles
8 Hydro Facilities
Gas Gas ElectricElectric
CustomersCustomers
Both Both
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Avista’s GISESRI ArcGIS/SDE 9.2
Oracle 10g
400+ Users
Avista Facilities Management (AFM)
– Edit - Electric and Gas
– OMS (OMT) - Electric
– Design - Electric and Gas
– Gas Compliance
– Engineering Analysis - SynerGEE
– Servers (OMT, Batch Posting, Compliance, Work, Statistics)
– Mobile – TC Technology Mapbook
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OMT - Overview
• Customer driven.
• Customer outages are georeferenced.
• Logically connected network.
• Outages are assessed and prioritized.
Geographically related
Electrically related
Prioritized by number and type of customers affected
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OMT – Problems
• Relies on customers to report outages.
May or may not report outage.
Customer observations may be unreliable.
• Reactive versus proactive.
• Labor and time intensive analysis.
• Delay in analysis causes restoration delays.
• Verification of outage restoration.
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AMI – Overview
• Automated Metering Infrastructure (AMI).
Two-way Automatic Communication System (TWACS).
• Remote meter reading.
• Allows for the “ping” of the meter.
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Outage PredictionTying GIS and AMI Together
GIS
AMI
Outage Prediction
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Outage PredictionService Outage
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Outage PredictionTransformer Outage
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Outage PredictionProtection Device Outage
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Implementation - Technology
• Visual Studio .NET and C#
• Component-based Scalable Logical Architecture (CSLA .NET) by Rockford Lhotka - www.lhotka.net
• ArcObjects used to create custom trace routines to trace the GIS logical network.
• Service Oriented Architecture (SOA) - Command Request Framework
• TWACS hijacking
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ImplementationExisting Manual Outage Analysis Process
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ImplementationThree Phases to Automated Outage Analysis
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The Future…
• Work Process Changes
• Analysis vs. Scanning
• Storm Curve
• Verification of Restoration
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Thank you for your attendance.
Questions?