D6.10.1: Demonstration of Using Load Flow and Fault Current Calculation Software Tool with CIM Interface and NIS Database - Survey

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D6.10.1: Demonstration of Using Load Flow and Fault Current Calculation Software Tool with CIM Interface and NIS Database - Survey - 1 - D6.10.1: Demonstration of using load flow and fault current calculation software tool with CIM interface and NIS database - Survey Third version, 2.5.2012 Tampere University of Technology Department of Electrical Energy Engineering Authors: Shengye Lu, Sami Repo CLEEN OY Eteläranta 10, P.O. BOX 10, FI-00131 HELSINKI, FINLAND www.cleen.fi - 2 - REVISION HISTORY Edition Date Status Editor 1.0 17.01.2012 First draft Shengye Lu 1.1 25.01.2012 Second update Shengye Lu 1.2 19.03.2010 Third update Shengye Lu, Sami repo CLEEN OY Eteläranta 10, P.O. BOX 10, FI-00131 HELSINKI, FINLAND www.cleen.fi - 3 - ABSTRACT Information exchange between different participants, systems, or applications has now become an essential activity in electricity networks and markets. Typically, electricity network operators use a variety of different formats to store their data. Even within the same operator, different proprietary formats are used by different applications. In order to ease data exchange internally between different applications and externally with other companies, IEC Technical Committee (TC) 57 adopts the CIM. The IEC Common Information Model (CIM) is a set of standards that enable system integration and information exchange in power electrical domain based on a common information model. It provides a general information model and message/file schemas for data exchange between systems. The model is not tied to a particular application’s view of the world; instead it permits the same model to be used by all applications to facilitate information sharing between applications. The usage of the CIM falls into two categories – one is used for exchanging power system models, the other is for generating message payloads for application interfaces in system integration use cases. The former is the mainly focus of IEC 61970 series standards; the later is the focus of IEC 61968 series standards. This deliverable gives a survey of the CIM standards, discussing how the CIM are used in these two categories of scenarios. During our research, we also developed a Java program, which can parse CIM RDF/XML file, and simplify node-breaker network models to bus-branch models. The simplified result can be used for load flow calculation software. CLEEN OY Eteläranta 10, P.O. BOX 10, FI-00131 HELSINKI, FINLAND www.cleen.fi - 4 - CONTENTS REVISION HISTORY ...................................................................................................................... 2 ABSTRACT ..................................................................................................................................... 3 CONTENTS .................................................................................................................................... 4 ABBREVIATIONS ........................................................................................................................... 6 1 Introduction ............................................................................................................................... 7 2 Electricity network modelling in CIM .......................................................................................... 9 2.1 The models ......................................................................................................................... 9 2.1.1 Object-Oriented Modelling ............................................................................................ 9 2.1.2 Some important CIM classes and modeling example .................................................. 11 2.2 CIMXML ........................................................................................................................... 13 2.2.1 CIM RDF Schema ....................................................................................................... 13 2.2.2 CIM RDF XML ............................................................................................................ 15 2.2.3 CIM XML Messaging .................................................................................................. 17 2.3 Enterprise Integration ....................................................................................................... 19 2.4 Bus-branch vs. node-breaker topologies .......................................................................... 23 3 Usage of CIM interface in electricity network calculation ......................................................... 25 3.1 Standard CIM profiles ....................................................................................................... 25 3.1.1 Dataset ....................................................................................................................... 26 3.1.2 Control center software ............................................................................................... 27 3.2 CIM model exchange specification (IEC61970-452) ......................................................... 29 3.3 Steady-state solution exchange specification (IEC61970-456) ......................................... 30 3.3.1 Use case .................................................................................................................... 30 3.3.2 Measurement interfaces - Analog Measurement & Status Measurement profile ......... 30 3.3.3 Topology Interface ...................................................................................................... 32 3.3.4 State Variables interface ............................................................................................. 33 3.4 ENTSO-E CIM Model Exchange profile ............................................................................ 34 3.4.1 Use cases ................................................................................................................... 35 3.4.2 Partition and Datasets ................................................................................................ 35 3.4.3 Conventions and Constraints ...................................................................................... 37 3.4.4 Profile Overview.......................................................................................................... 37 4 Example.................................................................................................................................. 39 4.1 Aim of the demonstration .................................................................................................. 39 4.2 Example network .............................................................................................................. 40 4.3 Our Java Program ............................................................................................................ 41 5 Future work and conclusions .................................................................................................. 43 6 REFERENCES ....................................................................................................................... 44 CLEEN OY Eteläranta 10, P.O. BOX 10, FI-00131 HELSINKI, FINLAND www.cleen.fi - 5 - Appendix - A list of interesting software related with CIM .............................................................. 45 CLEEN OY Eteläranta 10, P.O. BOX 10, FI-00131 HELSINKI, FINLAND www.cleen.fi - 6 - ABBREVIATIONS CIM Common Information Model IEC International Electrotechnical Commission EMS Energy Management System EPRI Electric Power Research Institute XML eXtensible Markup Language ENTSO-E European Network of Transmission System Operators for Electricity MAS Model Authority Set NIST National Institute of Standards and Technology UML Unified Modelling Language URI Uniform Resource Identifier RDF Resource Description Framework TSO Transmission System Operator CLEEN OY Eteläranta 10, P.O. BOX 10, FI-00131 HELSINKI, FINLAND www.cleen.fi - 7 - 1 Introduction Information exchange between different participants, systems, or applications has now become an essential activity in electricity networks and markets. Typically, electricity network operators use a variety of different formats to store their data. Even within the same operator, different proprietary formats are used by different applications. In order to ease data exchange internally between different applications and externally with other companies, a commonly agreed way of expressing the data content is needed. The IEC CIM provides the common format that can be used to express the data in power electrical domain. The IEC Common Information Model (CIM) is a set of standards that enable system integration and information exchange in power electrical domain based on a common information model. It provides a general information model and message/file schemas for data exchange between systems. It utilizes a Unified Modelling Language (UML) based information model representing real-world objects and information entities exchanged within the power electrical domain. The model is not tied to a particular application’s view of the world; instead it permits the same model to be used by all applications to facilitate information sharing between applications. Originally developed by Electric Power Research Institute (EPRI) in North America, the CIM has been gaining more and more acceptance. The CIM is now in the charge of IEC Technical Committee (TC) 57, Power System Management and Associated Information Exchanges. The main working groups dedicated to the CIM model are WG13, in charge of IEC 61970, and WG 14 for IEC 61968. The CIM is identified by NIST to be the key building block in Smart Grid to achieve
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