CIM Standard for Substation Automation System

1. We do IT in power Universidad Simón Bolívar CIM Standard for Substation Automation System Praga, Monday, May 09, 2011 Prof. Veronika Brundula (Universidad Simón Bolívar) Janko Blatnik (GDB d.o.o.)

2. What role are having Substations inside the Smart Grid? Universidad Simón Bolívar To achieve the Smart Grid vision of near–real time information, a transformation of the power grid communication infrastructure is needed, particularly in transmission and distribution substations. The existing supervisory control and data acquisition (SCADA) remote terminal unit (RTU) systems located inside the substation cannot scale and evolve to support next generation intelligence. New substation automation SCADA system is based on flexible IEC 61850 standards for communication and integration of new smart IED and IEC 61970/61968 for the integration into the control center.

3. What role are having Substations inside the Smart Grid? Universidad Simón Bolívar • The migration towards this future smart substation is taking place because of: • the need to reduce the operational costs • to bring more intelligence and automation into the future power grid • to comply with new regulatory requirements like NERC-CIP (North American Electric Reliability Corporation - Critical Infrastructure Protection) or UCTE - Operation Handbook

4. What are CIM and IEC 61850? Universidad Simón Bolívar CIM … Common Information Model is the set of IEC 61970 and IEC 61968 standards for control center data. It enables interoperability and operation of the interconnected power systems IEC 61850 … standard for substation data. It enables interoperability at substation level. Both standards use XML for data presentation. Both standards are under the jurisdiction of IEC TC57 working groups (http://cimug.ucaiug.org ). That gives them the same logic and makes then “compatible”.

5. How to design and build a new smart substation or renew an existing one to make it “Smart Grid ready”? Universidad Simón Bolívar • IP communications • Open standards like CIM and IEC 61850 • Interoperability between different vendors • Full redundancy • Components are having integrated communication devices • GOOSE messaging • IEC 61850 station bus • IEC 61850 process bus • And with CIM we get Unified data model

6. How to design and build a new smart substation or renew an existing one to make it “Smart Grid ready”? Universidad Simón Bolívar

7. SAS architecture Universidad Simón Bolívar CIM XML Power system model importer/exporter WEB Editor Power system model Browser/Editor WEB Reporting Services & WEB SCADA WEB Work Flow (WWF) GDA HSDA CIB (CIM Integration Bus) Syncronizer RDBMS

8. Technologies to use for SAS Universidad Simón Bolívar • CIM integration Bus (CIB), is message bus based on OpenESB or WCF (Windows Communication Foundation). • GID (Generic Interface Definition) are public APIs for CIB. • GDA-Generic Data Access (IEC 61970-403) • HSDA-High Speed Data Access (IEC 61970-404). • CIB also supports N+1 redundancy of the system

9. Generic Data Acces – GDA (IEC 61970-403) Universidad Simón Bolívar IEC 61970-403 Generic Data Access (GDA) defines services that are needed to access public entity objects for the power system domain that are defined in the IEC 61970-3xx series: Common Information Model (CIM). GDA permits a client to access data maintained by another component (either an application or database) or system without any knowledge of the logical schema used for internal storage of the data

10. Data flow (GDA) Universidad Simón Bolívar GDA CIB

11. High Speed Data Acces – HSDA (IEC 61970-404) Universidad Simón Bolívar IEC 61970-404 specifies an interface for the efficient transfer of data in a distributed environment. Small amounts of data are transferred with short delay but also large amounts of data are transferred in short time but with possibly longer delay. This is a typical requirement for a SCADA system that acts as a real time data provider to other sub-systems. Other systems than SCADA may also benefit from the characteristics of HSDA. When short delay times as well as bulk data transfer is required, HSDA is a good fit.

12. Data flow (HSDA) Universidad Simón Bolívar HSDA OpenESB

13. Benifits of suppoted technologies Universidad Simón Bolívar • SOA architecture • Open standards • Integrated support for HTTP and web services • Imata vgrajena komponente, ki omogočajo avtomatično transformacijo in povezovanje. • OpenESB supports BPEL • WCF has integrated the WWF

14. Performances Universidad Simón Bolívar

15. Redundancy Universidad Simón Bolívar • WCF supports N+1 redundancy

16. Redundancy Universidad Simón Bolívar

17. Security Universidad Simón Bolívar • Encripted and compresed messages • Avtentification based on username/passowrd or X.509 certificate

18. Interoperability Universidad Simón Bolívar • WCF is based on web services, defined in WS-*. • WS-* standards have been developed by different vendors like Microsoft, IBM, SUN... And today they are under the OASIS jurisdiction.

19. Interoperability Universidad Simón Bolívar

20. Interoperability Universidad Simón Bolívar • Metadata: The Web Services Description Language (WSDL) defines a standard language for specifying services and various aspects of how those services can be used. WS-Policy allows specification of more dynamic aspects of a service's behaviour that cannot be expressed in WSDL, such as a preferred security option. WS-MetadataExchange allows a client to request descriptive information about a service, such as its WSDL and its policies, via SOAP. Beginning with the .NET Framework 4 release, WCF also supports WSDiscovery. This broadcast-based protocol lets an application find services available elsewhere on its local network. • Reliability: WS-ReliableMessaging defines additions to the SOAP header that allowreliable end-to-end communication, even when one or more SOAP intermediaries must betraversed.

21. Interoperability Universidad Simón Bolívar • Transactions: Built on WS-Coordination, WS-AtomicTransaction allows using two-phase commit transactions with SOAP-based exchanges.

22. Integration mechanism and data flow of IEC 61850 and CIM Universidad Simón Bolívar

23. Integration mechanism and data flow of IEC 61850 and CIM Universidad Simón Bolívar • To be able to use CIM and IEC 61850 together we need to design mapping rules between CIM and IEC 61850. • As we can see IEC 61850 and CIM representation the mapping is not too complicated: • The breaker elements are the same in both standards • Logical node associated with breaker is analogous to the CIM Discrete Value object • The terminals associated with breaker are the same in both standards • The “Connectivity Node, Terminal of Busbar and the Busbar” elements of the CIM standard are mapped to the “Connectivity node” of the IEC61850 standard. • When we established the mapping rule we have a very good base for the integral solution.

24. Integration of IEC 61850 and CIM Universidad Simón Bolívar

25. Integration of IEC 61850 and CIM Universidad Simón Bolívar • As we can see, the integration of both standards gives us integral solution of Substation Automation System and Control Center. • Each parameter can be entered into the system exactly once. • The CID configuration files from IEDs are imported into the SAS. • That import procedure builds up the SAS model. • SAS model is exported as CIM-XML file and imported into the CIM compliant control center. That import builds up the power network model in control center. • That can be also achieved automatically (on event) if the SAS and control center supports GDA API interface defined in IEC 61970-403. • Real-time data between IEDs and SAS uses the IEC 61850 standard. • For the communication between control center and SAS many standards can be used. • Most commonly used standards are DNP 3.0 and IEC 60870-5-104. In the future we can expect that either IEC 61850 or HSDA defined in IEC 61970-404 will be used on that level.

26. Plug & Play Substation Universidad Simón Bolívar Integration of IEC 61850 and CIM (IEC 61970/61968) gives us “Plug & Play” substation automation system

27. Distributed control center Universidad Simón Bolívar That solution gives us so called “Distributed control center” solution. Every substation automation controller is part of the cluster connected with CIM based middleware

28. Benefits of Smart Substation Universidad Simón Bolívar • New smart substations have fully redundant design. • All components are having integrated communication devices. • Instead of old fashion hard wire solution between secondary and primary equipment, a new IEC 61850 IP based process bus is taking its place. • Instead of serial point to point communication IEC 61850 IP based station bus is taking its place. • Instead of hard wire for inter IED communication (interlocking …), IEC 61850 GOOSE messaging is used. • The configuration of IEDs is standardized with IEC 61850 and can be imported into the station controller as CID file for each IED. • Most of the hard wires in substations are replaced with IP communication. • Adding new smart primary equipment is simply adding a new IP device into the IP network, same as with secondary equipment. • The complete model of a substation can be transferred into the control center as CIM-XML file or through GDA-Generic Data Access API using the CIM standards IEC 61970/61968. GDA even supports that every change in the configuration of station controller is automatically transferred to the control center.

29. CIM Client Universidad Simón Bolívar

30. WEB Scada Universidad Simón Bolívar

31. CIM based enterprise solution Universidad Simón Bolívar WEB.AMI WEB.SCADA SCADA/DMS AMR Klicni Center CIM Integration Platform Open Meter API, Google Meter API GDB.DAQ PROCESS LAN CIM Integration Bus WEB Services (Proprietary) IEC 101, 104 DNP 3.0 GDA, CIM-XML, HSDA HSDA, GDA WEB.SAS DC IEC 101, 104 DNP 3.0 IEC 61850, 101, 103 WEB.DC S-FSK PLC S-FSK PLC G3-PLC, ZigBee WEB.SAS DLMS DLMS IEC 61850, 101, 103 SAS IEC 61850, 101, 103 IP Meter

32. Conclusion Universidad Simón Bolívar CIM and IEC 61850 offer us an open cost effective solution. Both standards has been worldwide accepted by different utilities and manufactures. Both standards, each for its level, offers interoperability, free configuration, cost effectiveness, scalability and reliability. The integration of both levels, substation and control center is indispensable. Both standards are becoming the facts as the utilities are migrating to the open and network solution for their SAS and control centers.

33. Universidad Simón Bolívar THANKS