We do IT in power Universidad Simn Bolvar

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 ) Prof. Veronika Brundula ( Janko Blatnik (GDB d. o. o. ) 1

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. 2

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

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 TC 57 working groups (http: //cimug. ucaiug. org ). That gives them the same logic and makes then “compatible”. 4

How to design and build a new smart substation or renew an existing one to make it “Smart Grid ready”? Universidad Simón Bolívar ØIP communications ØOpen standards like CIM and IEC 61850 ØInteroperability between different vendors ØFull redundancy ØComponents are having integrated communication devices ØGOOSE messaging ØIEC 61850 station bus ØIEC 61850 process bus ØAnd with CIM we get Unified data model 5

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

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

Technologies to use for SAS Universidad Simón Bolívar ØCIM integration Bus (CIB), is message bus based on Open. ESB or WCF (Windows Communication Foundation). ØGID (Generic Interface Definition) are public APIs for CIB. ØGDA-Generic Data Access (IEC 61970 -403) ØHSDA-High Speed Data Access (IEC 61970 -404). ØCIB also supports N+1 redundancy of the system 8

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 -3 xx 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 9

Data flow (GDA) Universidad Simón Bolívar CIM XML File XML Parser GDA Client WEB Visual Editor XML Parser GDA Client SCADA Broker XML Parser GDA Client AMI Broker XML Parser GDA Client GDA CIB 10

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. 11

Data flow (HSDA) Universidad Simón Bolívar Visual Editor SCADA Broker XML Parser HSDA Client AMI Broker XML Parser HSDA Client HSDA Open. ESB 12

Benifits of suppoted technologies Universidad Simón Bolívar ØSOA architecture ØOpen standards ØIntegrated support for HTTP and web services ØImata vgrajena komponente, ki omogočajo avtomatično transformacijo in povezovanje. ØOpen. ESB supports BPEL ØWCF has integrated the WWF 13

Performances Universidad Simón Bolívar Measurement Resutls Performance <2 s for average request Data flow Up to 500 requests per one 4 CPUserver 14

Redundancy Universidad Simón Bolívar ØWCF supports N+1 redundancy 15

Redundancy Universidad Simón Bolívar 16

Security Universidad Simón Bolívar ØEncripted and compresed messages ØAvtentification based on username/passowrd or X. 509 certificate 17

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

Interoperability Universidad Simón Bolívar 19

Interoperability Universidad Simón Bolívar ØMetadata: 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-Metadata. Exchange 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 broadcastbased protocol lets an application find services available elsewhere on its local network. ØReliability: WS-Reliable. Messaging defines additions to the SOAP header that allow reliable end-to-end communication, even when one or more SOAP intermediaries must be traversed. 20

Interoperability Universidad Simón Bolívar ØTransactions: Built on WS-Coordination, WSAtomic. Transaction allows using two-phase commit transactions with SOAP-based exchanges. 21

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

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: ØThe breaker elements are the same in both standards ØLogical node associated with breaker is analogous to the CIM Discrete Value object ØThe terminals associated with breaker are the same in both standards ØThe “Connectivity Node, Terminal of Busbar and the Busbar” elements of the CIM standard are mapped to the “Connectivity node” of the IEC 61850 standard. When we established the mapping rule we have a very good base for the integral solution. 23

Integration of IEC 61850 and CIM Universidad Simón Bolívar 24

Integration of IEC 61850 and CIM Universidad Simón Bolívar ØAs we can see, the integration of both standards gives us integral solution of Substation Automation System and Control Center. ØEach parameter can be entered into the system exactly once. ØThe CID configuration files from IEDs are imported into the SAS. ØThat import procedure builds up the SAS model. ØSAS 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. ØThat can be also achieved automatically (on event) if the SAS and control center supports GDA API interface defined in IEC 61970 -403. ØReal-time data between IEDs and SAS uses the IEC 61850 standard. ØFor the communication between control center and SAS many standards can be used. ØMost 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. 25

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

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 27

Benefits of Smart Substation Universidad Simón Bolívar ØNew smart substations have fully redundant design. ØAll components are having integrated communication devices. ØInstead of old fashion hard wire solution between secondary and primary equipment, a new IEC 61850 IP based process bus is taking its place. ØInstead of serial point to point communication IEC 61850 IP based station bus is taking its place. ØInstead of hard wire for inter IED communication (interlocking …), IEC 61850 GOOSE messaging is used. ØThe configuration of IEDs is standardized with IEC 61850 and can be imported into the station controller as CID file for each IED. ØMost of the hard wires in substations are replaced with IP communication. ØAdding new smart primary equipment is simply adding a new IP device into the IP network, same as with secondary equipment. ØThe 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. 28

CIM Client Universidad Simón Bolívar 29

WEB Scada Universidad Simón Bolívar 30

CIM based enterprise solution Universidad Simón Bolívar WEB. SCADA WEB. AMI SCADA/DMS AMR Klicni Center CIM Integration Platform Open Meter API, Google Meter API GDB. DAQ PROCESS LAN WEB Services (Proprietary) HSDA, GDA DC S-FSK PLC WEB. DC WEB. SAS S-FSK PLC G 3 -PLC, Zig. Bee DLMS CIM Integration Bus IEC 101, 104 DNP 3. 0 WEB. SAS IEC 101, 104 GDA, CIM-XML, IEC 61850, 101, 103 HSDA DNP 3. 0 DLMS IP Meter SAS IEC 61850, 101, 103 31

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. 32

Universidad Simón Bolívar THANKS Universidad Simón Bolívar Sartenejas, Baruta, Edo. Miranda Apartado 89000 Caracas Venezuela Tel: +58 412 9800 358 vbrundula@usb. ve GDB d. o. o. Tehnološki park 24 1000 Ljubljana Slovenia-EU Tel: +386 59 0322 45 Fax: +386 59 0322 46 E-mail: cim@gdb. si www. gdb. si 33