Integrated Network Model Management Supplemental …incremental. model exchange . 2003 [CIM10]...
Transcript of Integrated Network Model Management Supplemental …incremental. model exchange . 2003 [CIM10]...
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Pat Brown Senior Project Manager
IntelliGrid Program
July 10, 2012
Common Information Model (CIM) &
Network Model Management
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Introduction
• Common Information Model & Network Model Management
• EPRI Work – Base-funded requirements project – Supplemental project – real-world, more detail, business
processes
• Context: Transmission – More mature product market spaces – Complexity of challenge
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Agenda
• CIM Background – What it is, how it’s used – History - a focus on Network Model Management
• Network Model Management work at EPRI
– The issue and the vision – Base funded project
• Strategy • Initial observations
• Questions / Comments
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Who’s On the Webcast?
• Organization – TSO? – ISO? – Neither?
• Work Area – Operations? – Planning? – IT? – Other?
• Experience with CIM – Have deployed it? – Am familiar with it? – Could spell it?
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IntelliGrid Program
The IntelliGrid Program conducts research, development and demonstrations on the Information and Communications Technologies (ICT) that Enable Smart Grid applications
IntelliGrid • Transmission • Distribution • End-Use (AMI/DR)
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CIM Background The Common Information Model Problem Space • Information exchange among applications or systems • Electric utility operations (not generic business domain) • Enterprise level (not device level) data sharing • The bigger world of the Smarter Grid
– More applications – More data – Increasing expectations for
seamless collaboration
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CIM Background The Common Information Model Problem Space • Interfaces proliferate • Each is custom (and as time consuming as the last) • Need to understand and document many transformations
Application C
Application B
Application A
Application H
Application G
Application F
Application E
Application D
• One change breaks many interfaces Application
B
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CIM Background The Solution • Arm’s length sharing via a common semantic model
Application C
Application B
Application A
Application H
Application G
Application F
Application E
Application D
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CIM Background The Solution – a common model • The common semantic model
– Clearly describes meaning and relationships of shared data
– Also called “conceptual” or “cannonical” or “public” model
• Content of model defined by means of
data sharing use cases
• Independent of all internal application representations
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CIM Background The Solution – a common model • Each application translates to/from its internal model
to the public model
Application C
Application B
Application A
Application H
Application G
Application F
Application E
Application D
Semantic /format translation
semantic/ format
translation
semantic/ format
translation
Semantic /format translation
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CIM Background The Solution – a common model • The common semantic model
– Requires only one translation per application – Eases application replacement, facilitates application
addition
• Our common semantic model is the CIM
• Intentionally layered – Semantics (described in UML) – Syntax (many)
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CIM Background Deep History in Network Modeling • EPRI Operator Training Simulator work (early 90s) • CCAPI Task Force (1993 – 1996)
– Initial goal: allow utilities to procure “best of breed” subsystems for their Energy Management Systems
– Operations perspective – Network model at core
• IEC standard (1996) – Initially: WG13 (Transmission) and WG14 (Distribution) – Over time: WG13 (network model, batch exchange) and
WG14 (assets/meters/work management, messaging) – Shift in vision: electric utility data model in “enterprise
application integration”
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CIM Background InterOperability Tests Tell the Story
20 network model IOPs since 2000
2000 [CIM9a] • full model exchange (sample model)
2001 [CIM9b] • full model exchange (Duke, CAL ISO models)
2002 [CIM10] • full/incremental model exchange
2003 [CIM10] • full/incremental model exchange, messages
2004, 2005, 2006 [CIM10] • full/incremental model exchange, Distribution
2007 [CIM11] • full/incremental model exchange, Model Authority Sets
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CIM Background InterOperability Tests Tell the Story
20 network model IOPs since 2000
2008 [CIM12/13] – full/incremental model exchange, Planning 2009 [CIM14] – full/incremental model exchange, State Variables 2010 [CIM14] – full/incremental model exchange, headers & merging 2011 [CIM15] – full/incremental model exchange, Diagram Layout,
balanced/unbalanced transformer 2012 [CIM16] – full/incremental model exchange, Dynamics, short circuit
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CIM Background How the CIM is Expressed • Common Model – the whole puppy (1500+ classes)
– Unified Modeling Language (UML) – in Enterprise Architect software tool
• Profiles – one data exchange (1-50 classes) – constrains model and adds instantiation rules – standard and project / product specific – data profiles and technology-specific profiles – UML plus… – many tools
• Exchange Instances – technology specific (CIM XML with RDF Schema)
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• Common Model – UML
CIM Background How the CIM is Expressed
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• Profiles – UML plus rules
CIM Background How the CIM is Expressed
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CIM Background How the CIM is Expressed
• Exchange Instances – CIM XML (flat file or messages)
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CIM Background EPRI CIM Primer
• To learn more: Common Information Model Primer Product ID: 1024449 www.epri.com Search on Title or Product ID
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CIM Background CIM as an IEC Standard • Actually 3 standards:
– 61970 (network model, XML file exchange) – 61968 (asset, meter, messaging) – 62325 (markets)
• 3 Working Groups – WG13 – 61970
Convener: Terry Saxton [email protected]
– WG14 – 61968 Convener: Greg Robinson [email protected]
– WG16 – 62325 Convener: Jim Waight [email protected]
• IEC “owns” paper documents • CIMug “owns” UML
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CIM Background CIM Users Group (CIMug)
• Community of users and implementers • www.cimug.org • One of several user organizations under UCAInternational
umbrella • Sponsors 2 Users Group meetings per year
– US in the fall (New Orleans – October 22-26, 2012)
– Europe in the spring
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EPRI Network Model Management Project EPRI Work
• Why? – Why this work? Why the CIM? – Improve reliability – better network application results – Improve efficiency – engineers do engineering, not data
entry • How?
– Define real-world requirements -> understood product market space
– Progress the CIM standard – Vendor products
• Why now? – Convergence of standards readiness and utility need
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EPRI Network Model Management Project EPRI Work
• Integrated Network Model Management – Base-funded requirements project – Supplemental project – real-world, more detail, business
processes
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• One electrical grid • Multiple applications
requiring Transmission network model as input
The Current Situation …silo’d model maintenance
EMS/ Operations
Planning
Protection
Training Simulator
Transient Analysis
Development Planning
. .
. .
. .
. .
. .
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• This means – Independent manual updates to each model
• Duplicate effort • Synchronization / consistency issues
– Difficult to capture data from one application and apply it in another
– Lack of support for model history – No shared vision of model future – No clarity of thinking about what’s universal (network
configuration, operating guides, operating state)
The Current Situation …silo’d model maintenance
High expenditure of effort but less than high quality results
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The Vision
EMS/ Operations
Planning
Protection
Training Simulator
Transient Analysis
Development Planning
. .
. .
. .
. .
. .
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The Vision …coordinated Transmission network model maintenance
Development Planning
EMS/ Operations
Planning Training Simulator
Protection
Transient Analysis
. . . . . .
. . . .
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• Supports – As-built model history – Planned or proposed work managed cleanly, with
network configuration, operating guides, operating state model separately
The Vision …coordinated Transmission network model maintenance
• Features – Single source for each piece of data – Changes made only once – Timely, coordinated updates of model for each system
based on its needs
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The Vision …coordinated Transmission network model maintenance
Less effort for much higher quality results
• Benefits – Confidence in data and application results – Ability to correlate information between applications – Timely answers – Reduce maintenance labor
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• But there are challenges… – Requirements not fully understood – Model maintenance products are in their infancy – Have a good model basis in the Common Information
Model (CIM), but • Limited CIM interfaces on existing applications • Internal network model exchange is new territory
– Strategy implies significant business process changes
The Vision …coordinated Transmission network model maintenance
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• Observations from utility experience – Merging/aligning models to arrive at single version of the
truth is a lot of work – Vendor products are not ready – Ongoing model validation processes are crucial – Have to make lots of instantiation assumptions – Getting business processes (and individual thought
processes) “CIM compliant” is the hardest task
The Vision …coordinated Transmission network model maintenance
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Statnett quote in presentation at recent CIMug: “CIM v16 is the first version with the potential to fulfill
our requirements for practical use”
The Solution Framework …the Common Information Model (CIM)
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• The value is there – Allow engineers do engineering – Reduced labor – Accurate and timely results – Compliance with NERC model requirements – Readiness for inter-utility exchange
• The timing is right to start
– CIM is ready for real-world exercising – Vendor products still being developed
Integrated Network Model Management …an idea whose time has come
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• Phase I – Data Gathering – Visionary Utilities – Consuming Applications – Solution Tools
• Phase I – Data Gathering – Visionary Utilities – Consuming Applications – Solution Tools
EPRI Network Model Management Project The Base-Funded Project
• Phase II – Generic use case
• Phase III - Requirements
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EPRI Network Model Management Project Data Gathering – Utility Deployments
Between ISOs and their member TSOs – ERCOT – California ISO – ENTSO-E (Pan European Transmission Coordinator)
• Key CIM features – Operations / Planning – the Topology Package – TSO maintenance of subset - Model Authority Sets – Different names - Naming model – Exchange file size - Incremental updates
Challenge: Merging similar pieces of a model into a whole
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EPRI Network Model Management Project Data Gathering – Utility Deployments
Inside the utility – ERCOT – California ISO – ENTSO-E – Powerlink (Australia) – Elia (Belgium) – NYISO – Statnett (Norway) – RTE (France)
• Key CIM features – All needed for TSO/ ISO plus new ones
Challenge: Synthesizing different views of the same information
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EPRI Network Model Management Project Data Gathering – Utility Deployments
• As many scopes and solution strategies as there are utilities
• Wide variety of solution technologies
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EPRI Network Model Management Project Data Gathering – Consuming Applications “Real-Time” / Operations / EMS • Functions
– Topology Processing – State Estimation – Contingency Analysis – Optimal Power Flow – Voltage Stability
• Vendors / Products – ABB – Network Manager – Alstom – eterraplatform – GE – XA/21 – OSI – monarch – Siemens – Spectrum Power 3 – Others?
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EPRI Network Model Management Project Data Gathering – Consuming Applications
Planning • Functions
– Power Flow – Contingency Analysis – Optimal Power Flow – Security Constrained Optimal Power Flow – Available Transfer Capability – Voltage Stability – Sensitivity Analysis – Fault Analysis – Transient Stability Analysis – Small Signal Stability Analysis
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EPRI Network Model Management Project Data Gathering – Consuming Applications
Planning • Vendors / Products
– CESI – DigSilent – PowerFactory – GE – PSLF – NEPLAN – PowerWorld – Siemens – PSSE – Tractebel – Eurostag – Others?
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EPRI Network Model Management Project Data Gathering – Consuming Applications
Protection • Functions
– Protection Scheme Design – Short Circuit Analysis
• Vendors / Products – Aspen - OneLiner – electrocon - CAPE – Cooper – CYME family – DigSilent – StationWare, PowerFactory – Others?
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EPRI Network Model Management Project Data Gathering – Consuming Applications
Operator Training Simulator • EMS Vendors / Products
– ABB – Network Manager – Alstom – eterraplatform – GE – XA/21 – OSI – monarch – Siemens – Spectrum Power 3
• Standalone Vendors / Products – Powersmiths/PowerWorld – OPS-X – Incremental Systems – PowerSimulator – DSi – EPRI OTS – Others?
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EPRI Network Model Management Project Data Gathering – Consuming Applications
• Lots of products • Functions overlap, even in this mature product space
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EPRI Network Model Management Project Data Gathering – Model Management Tools
Network Model Management • Vendors / Products
– Alstom – eTerrasource – Siemens PTI – ODMS – Others?
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• Phase I – Data Gathering – Visionary Utilities – Consuming Applications – Solution Tools
• Phase II – Generic use case
• Phase III - Requirements
EPRI Network Model Management Project The Base-Funded Project
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• Application Data – Types of data
• Equipment, including geo-spatial location • Connectivity • Flowgate definitions • Topology • One-line (graphic) layout of equipment /connectivity model • Seasonal ratings / limits • Measurement linkages • StateVariable (State Estimator) linkages • Load • Dynamic behavior models • Protection • Asset (nameplate information) linkages • Contingency definitions • Generator production/cost models • Documents or linkages to documents
EPRI Network Model Management Project Preliminary Requirements
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• Application Data – Considerations
• Where is “biblical source”? • Which non-source data is important to store? • Is there a single tool for the Network Model Management environment or is the work shared?
EPRI Network Model Management Project Preliminary Requirements
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• Tool Functionality – Model history – Projects (and subprojects) – Grouping of data – Model views – Data security / access control – One-line editing environment – CIM-based API – Model validation capability, including Load Flow – Support for derived or calculated data
EPRI Network Model Management Project Preliminary Requirements
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• Which requirements imply CIM modifications?
“The CIM isn’t the best way to do anything…. …but it is the best way to do everything.”
- Jay Britton
EPRI Network Model Management Project
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Comments? Questions?
Pat Brown Senior Project Manager IntelliGrid Program [email protected] (913) 449-0736
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Together…Shaping the Future of Electricity