2001 EMS Users Group
April 3, 2001
Washington, DC
PEPCO EMS Migration
Manley Higgins
Project Manager
Mark Bruen
KEMA Consulting
Principal Consultant
EMS Migration
• Migration Philosophy
• Overview of EMS
• Migration Phases
• Related Enhancement Efforts
• Future Phases
• Long Range Plan & Update Process
• Challenges for the Future
EMS Migration
Migration Philosophy
Migration Philosophy
• In 1995, PEPCO Adopted a LongTerm EMS Migration Philosophy to
Keep the EMS “Ever-green”.
Migration Philosophy
• Migration Rationale:
• Keep the system technologically
current to meet the terms of the
financial lease
• To protect the investment in the
operational procedures, EMS
software, system design, &
• To avoid obsolescence of hardware
Migration Philosophy
• Migration Rationale (cont.):
• To support increased performance
and capacity requirements
• To allow for the addition and
enhancement of system functions
as business requirements change
• Enhance the EMS to accommodate
the implementation of large-scale
Distribution Automation and
Substation Automation projects
Migration Philosophy
• Migration Rationale (cont.)
• And, to avoid the extreme and
expensive effort of another EMS
“forklift” replacement, including:
• Procurement costs
• System Testing
• Cutover
• Software Quality Control
• Staff time commitment
EMS Migration
Overview of the PEPCO EMS
Overview of the
Original PEPCO EMS
• EMS is “Consolidated Control
• Designed to support Transmission,
Distribution, and Generation
• (Generation sold December
Overview of the
Original PEPCO EMS
• Interfaces with other critical
PEPCO and external systems
• New Outage Management
• Corporate Systems
Overview of the
Original PEPCO EMS
• Procured from ABB Network
Management (formerly NMTI)
• Delivered in 1993
• Initially commissioned in 1994
Overview of the
Original PEPCO EMS
• Full featured EMS including:
• Graphical User Interface (not
workstation based Full Graphics)
• Distributed System w/ Proprietary
Hardware Front-ends
• Full Advanced Applications Suite
• Real-time and Study
• PEPCO Specific Applications
Overview of the
Original PEPCO EMS
• Dispatcher Consoles
• Transmission Dispatchers
• Load Dispatchers
• Transmission Shift Supervisors
• Distribution Shift Supervisors
• System Support Consoles
• Development and Testing Facility
• Dispatcher Training Simulator
EMS Migration
PEPCO Migration Phases
Migration Phases
• PEPCO established a multi-year
migration program:
• To fully migrate the EMS every
seven years.
• PEPCO’s management committed to
to fund the effort to avoid the high
costs of another procurement.
Migration Phases
• Migration Phase I – 1995 – 1996
• Open Systems Platform
Enhancements including:
• Introduction of Dec Alpha Hardware
• Operating System Upgrades
• Intel RMX to UNIX
Migration Phases
• Migration Phase I (cont.)
• Conversion of Code to C
• (from less common/difficult
languages – PLM, Assembly)
• FORTRAN not converted
Migration Phases
• Migration Phase II – 1997-1998
• ICCP for standards-based
communications with:
• PEPCO to BGE (planned
• Ranger Data Acquisition Server
• Compaq Alpha hardware and
Unix operating system
• Bow Software Protocol
Migration Phases
• Migration Phase II – (cont.)
• Addition of PI Historian Data
• Upgraded DTS
• Increased Database Sizing
• Via System Master Parameters
Migration Phases
• Migration Phase III – 1999 – 2000
• Workstation Based Graphical User
• ODBC Interface Into EMS
• NT Based Historian
• Study Mode State Estimator –
Uses Historian Data for Studies
• DNP Protocol
Migration Phases
• Migration Phase III (cont.)
• Event Storage and Retrieval
• Updated Software Tools to Improve
Maintenance and Support
Migration Phases
• Migration Phase IV – 2001-2002
(currently in progress)
• Increase DB Sizing (1.5 x current)
• Naming size increases
• DNP Protocol Converter (Rockwell
5020 to DNP)
• Transfer Existing RTU to RDAS
• Graphical Data Engineering Tool
• CIM Based
Migration Phases
• Migration Phase IV – (cont.)
• Facilities and Support Systems
• Console Voice Equipment
(integrates PEPCO’s radio and
telephone requirements)
• Upgrade/Life Extension for Critical
Power (UPS) and HVAC
Migration Phases
• More to Come?
• Phase V – Commercial Display
Generation Software
• Phase VI – Upgrade EMS
Application Processors, storage
devices, printers, Bow-Tie
Equipment, LAN I/F
• Phase VII – SCADA System
• Phase VIII – Advanced Apps.
• These phases are currently under
EMS Migration
Related EMS Enhancement Efforts
Related EMS
Enhancement Efforts
• RTU Protocol Conversion for existing
• Outage Management System/EMS
Interface – using ICCP
• Source Data Management System –
to improve data management process
• System Security Enhancements
Related EMS
Enhancement Efforts
• PEPCO Substation Automation
• Increased data from smart relays
and Substation Automation
systems (4 kV, 13 kV, 69 kV, 230
kV substations)
• VAR Dispatch – using feeder
Related EMS
Enhancement Efforts
• PEPCO Distribution Automation
• Feeder sectionalization using fault
detectors and Motor Operated
• 69 kV MODs
• 13 kV MODs
• Utilinet Spread Spectrum Radios
EMS Migration
Future Migration Phases
Future Migration Phases
• Migration of Advanced Applications to
New Business Needs
New ISO Support Requirements
New Corporate Information Needs
Corporate Reorganizations and
Industry Restructuring
EMS Migration
Long-Range Plan & Update Process
Long-Range Plan and
Update Process
• PEPCO is currently reviewing the
Long-Range Migration Plan
• Looking at current operational and
business needs
• Investigating current technology
• Assessing impacts of restructuring
• To properly align the next migration
phases with the overall long-term
Long-Range Plan and
Update Process
• Goal is to provide an updated 10 Year
Forecast for planning purposes.
• Also to more clearly define the nearterm needs and associated migration
EMS Migration
Challenges for the Future
Challenges for the
• Distribution Operations Optimization
• Fault detection and automated
feeder reconfiguration
• Other distribution functions
• Additional Expansion of Distribution
Functional and Data Requirements
• Smart Relays, MODs, etc.
Challenges for the
• Integration with Corporate Systems
• Corporate-wide Data Availability
• For Maintenance Monitoring
• Enterprise Application Integration
(EAI) Environment
EMS Migration
Questions and Comments?
EMS Migration
Thank You!

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