PTD Energy Management & Information Systems FERC TC: Information Technology for Reliability & Markets ISO-RTO Standards Collaborative July 14, 2004 J

PTD Energy Management & Information Systems

FERC TC: Information Technology for Reliability & Markets

ISO-RTO Standards Collaborative July 14, 2004J. Waight

Siemens Power Transmission & Distribution, Inc.Energy Management & Information Systems Division

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Security Constrained Unit Commitment

Objectives:Specify Interfaces to Security Constrained Unit Commitment (SCUC)

Continuation of EPRI CME project1st Project to demonstrate methods of ISO-RTO Standards CollaborativeDesired Result is that SCUC may be considered as a black box with standard input and output interfacesDesired Result is that ISO-RTOs can procure SCUC as a component, from any vendor, and run multiple SCUC in parallelISO-RTOs can integrate SCUC into a Market Operations System using a standard interface, at reduced cost


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Process for Creation of Standard Interfaces

Each Vendor contributed its SCUC requirements Data Input Requirements and Descriptions Data Output Provided by SCUC and Description

ISO-RTOs review Input/Output requirements Create a profile of data required to support features of Market Commonality due to SMD

Review of existing Common Information Model IEC standard 61970 part 301 Search for existing models that can be reused

Extension of CIM to add Market Features Workshop approach

Development of a set of tools to automate creation of message schemas

Use of tools to create message schemas


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Tools for Creation of Standard Interfaces

Model Driven Architecture Platform Independent Model maintained in UML

Rational Rose Intermediate Model

RDF/Schema Platform Specific Model

W3C XML Schema

XPETAL as tool for transformation Public Domain


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Message Framework for SCUC

Input MessagesMarket Input Message (Bids)

Generation Bid Load Bid Transaction Bid

Network Model Input NERC CPSM profile

Standing Input Message RTO Product Definition Market Definition Market Participant Registration

System Requirement Load Forecast Generation Initial Conditions

Security Analysis Input Message Outages Contingencies Limits etc

Output MessageSchedulesPricesErrors & WarningsSolution Notes

Control MessagesSchemasFetchExecute


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Results to date

First Project to Demonstrate ISO-RTO Standards CollaborativeThree workshops attended by

ISO-RTOs, Vendors, and ConsultantsRepeatable Process, Methodology, and Tools for Developing Interface StandardsModel Extensions to the Common Information Model (CIM) to support SCUCDevelopment of Message Sequence DiagramDevelopment of XML schemas to define messagesPlanning for pilot project to validate schemasAchieved in three month schedule


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Questions ???


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Backup: Message Sequence Diagram

User MarketSystem

SCUC(ID#)

EXECUTEEXECUTE (ID1,ID2,ID3,ID4, ID5)

FETCH (ID1)

Network (ID1)

FETCH (ID2)

Standing (ID2)

FETCH (ID3)

Market (ID3)

Results (ID1,X,ID3,ID4, ID5)

FETCH (X)

Standing (X)

DISPLAY

FETCH (ID3)

Market (ID3)

FETCH (ID4)

Security Analysis (ID4)

FETCH (ID5)

System Requirements (ID5)


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Backup: Model Driven Architecture Cascaded Pattern

Documents

PTD Energy Management & Information Systems FERC TC: Information Technology for Reliability & Markets ISO-RTO Standards Collaborative July 14, 2004 J