KTH == IEC 61850 for Substation Automation 2013-04-12

7/27/2019 KTH == IEC 61850 for Substation Automation 2013-04-12

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Megger - Substation overview


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170 product groups, 2600 products


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MEGGER Insulation testers, fibre optic testingMULTI-AMP Circuit breaker test testsBIDDLE High voltage test sets

AVO Multimeters,Training, softwareDUCTER Ohm metersFOSTER Oil test setsSTATES Terminal blocks

METROSONICS Critical systems monitoringPROGRAMMA Relay/ Circuit Breaker/ Battery TestingPAX DIAGNOSTIC Transformer, Insulation Products

Megger Brand Names


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IEC 61850 STANDARD IN SUBSTATION AUTOMATION

Main purpose of the standard is to achieve interoperability amongdifferent devices from different vendors within the same substation.


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IEC 61850 STANDARD IN SUBSTATION AUTOMATION


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THE POWER SUBSTATIONIn a substation there are Primary Equipments:


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THE POWER SUBSTATION

The Primary equipments in the Substation need

to be controlled . The word CONTROL in a substation has nothing to do with ProcessControl , where the word CONTROL is usually associated to feedbacksystems :


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THE POWER SUBSTATIONBusbar change. Load is on Busbar 2


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THE POWER SUBSTATIONBusbar change. Connecting Busbar 1 to Busbar 2


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THE POWER SUBSTATIONBusbar change: Connecting the Feeders to Busbar 1


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THE POWER SUBSTATIONBusbar change: Disconnecting feeders from Busbar 2


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THE POWER SUBSTATIONBusbar change: Disconecting Busbar 2 from the system


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THE POWER SUBSTATIONBusbar change. Busbar 1 in service


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THE POWER SUBSTATIONOne very simple interlocking:Earthing Switch and Disconnector

I can OPEN / CLOSE the Disconnector ONLY if the EarthingSwitch is OPEN.If the Earthing Switch is CLOSED I cannot operate theDisconnector.


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THE POWER SUBSTATIONEARTHING SWITCH CLOSED


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THE POWER SUBSTATIONEARTHING SWITCH OPEN


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THE INTERLOCKING SYSTEM


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A Local Action (open/close) may require:THE INTERLOCKING SYSTEM

Remote information (from different bays)Local information (from the same bay)


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OC G S S


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THE IEC 61850 INTERLOCKING SYSTEM


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THE IEC 61850 INTERLOCKING SYSTEM

CONTROL / INTERLOCKING in an IEC 61850 substation


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CONTROL / INTERLOCKING in an IEC 61850 substation

IEC 61850 Standard


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IEC 61850 Standard



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THE POWER SUBSTATIONIn a substation there are Primary Equipments..



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THE POWER SUBSTATION that must be protected.


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THE PROTECTION RELAYS


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The circuit breaker opens and interrupts the fault current. The relaysees no fault conditions anymore and it resets. Circuit breaker remains open, the fault has been cleared.

THE PROTECTION SYSTEM


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Radial Feeders: No communication



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Radial Feeders: Communication



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GOOSE communication for PROTECTION and CONTROL


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GOOSE = Generic Object Oriented S ystem Event.Is an unacknowledged multicast message that is repeated with a certainstrategy allowing the supervision of the Horizontal Communication.

GOOSE communication for PROTECTION and CONTROL

GOOSE or Contact (Conventional) ?


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GOOS o Co tact (Co ve t o a ) ?



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( )



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( )

IEC 61850 Standard


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BEFORE standardisation : REPORTING TO SCADA / RTU


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Proprietary communication protocols were / are still available.Handling correctly all protocols was and is still a challenge

BEFORE: PROTOCOL CONVERTERS / IMPLEMENTATIONS


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IEC 61850 APPLICATION: REPORTING TO SCADA / RTU


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IEDs from different vendors can exchange and use information over acommon communications media. No need to have protocol converters.Reporting: Vertical Communication .

IEC 61850 APPLICATION: SCADA/RTU COMMUNICATION


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The communication between SCADA / RTU and the IEDsis defined in the IEC 61850 standard (MMS / FTP).

Data exchanged can be:

Control (operating primary objects) Log Reporting of events Disturbance Files Upload

IEC 61850 Standard


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IEC 61850: NETWORK TOPOLOGY


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The data traffic runs on Ethernet, 100 Mbit/s.

This means that in the IEC 61850 substation there are Ethernet switches.

Protection and Control signals aredependent on the correctfunctionality of the communicationsystem, which has in the Ethernetswitches one of its most importantfactors.


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IEC 61850 Standard


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IEC 61850: The SCL language


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IEDs and Substations are described through XML files.The IEC 61850 language used in the XML files is calledSCL language.

SCL: Substation Configuration Language.

IEC 61850: The SCL language (IED Modelling)


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IEC 61850: The SCL language (IED modelling)


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Bay A Bay Unit (IED)

PTRC (Trip, Operate)



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Bay Unit (IED)


SCLBay A



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Bay Unit (IED)


SCLBay A



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Bay Unit (IED)

PTRC (Trip, Operate)SCL

Bay A



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SCLSCLIt is possible to structurethe Logical Nodes, andgroup them under differentLogical Devices.The rules of this structureare described in the XMLfile.


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IEC 61850: Different SCL files


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Depending on the information they carry, there are different types of SCL files:

ICD (IED Capability Description)

CID (Configured IED Description)SCD (Substation Configuration Description)

SSD (System Specification Description)

IID (Instantiated IED Description)SED (System Exchange Description)

IEC 61850 Standard


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IEC 61850: Engineering Process


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There are software tools that can extract engineering information from theSCD file and represent them in a comfortable way to the user:



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REPORTING Vertical Communication

All the IEC 61850 devices (IEDs) describe themselves withhelp of the SCL language.

SCL information from all IEDs are integrated into theIEC 61850 Engineering Tool.



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The SCADA system isalso IEC 61850compliant, and it can readthe SCD filesunderstanding how thesubstation looks like,which IEDs are presentand which informationthey send to the SCADAsystem .

SCADA / RTU Vertical Communication



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GOOSE Horizontal Communication

In the SCL file there is written which IED talks to which IED.

The standard messages among IEDs in the same substation are calledGOOSE messages (Generic Object Oriented Substation Event).GOOSE messages can contain protection application information (TRIP,Block etc.) .



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The IEC 61850 Engineering Tool

One IEC 61850 Engineering Tool is in principle a software that handlesSCL files.

The initial SCL files are provided by the IED vendor software tools, and theyare called ICD files (IED Capability Description).

The ICD files are imported in the IEC 61850 Engineering TOOL andGOOSE Reporting information are added for each IED, creating the socalled SCD file (Substation Configuration Description).

The SCD file is then exported from the Engineering Tool. IED vendor toolswill import that file and will download in the IEDs the IEC 61850 informationthat are written in the SCD files.

IEC 61850:E i i P


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Engineering Process

IEC 61850: Engineering Tools


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Documentation

The SCD file describes thesubstation in IEC 61850 language(SCL).The IEC 61850 tool is able toelaborate such information and toshow it in human readable format,like a PDF file.

IEC 61850: Engineering Tools


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IEC 61850 Standard


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PROCESS BUS


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Sampled Values(SV)9-2

Merging Units(MU)

IEC 61850-9-2NCIT

PROCESSBUS

FULLY IEC 61850 SUBSTATION


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Replacement of BO cards


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GOOSE OUT

Replacement of BI cards


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GOOSE OUT

GOOSE IN


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GOOSE OUT

GOOSE IN

THE IEC 61850-8-1 IED


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GOOSE IN GOOSE OUT

IEC 61850-8-1 Station Bus

Replacement of analog cards + A/D conversion


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GOOSE IN GOOSE OUT


SAMPLED VALUES (SV)


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GOOSE IN GOOSE OUT


SAMPLED VALUES

THE FULLY IEC 61850 COMPLIANT IED


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GOOSE IN GOOSE OUT


SAMPLED VALUES

IEC 61850-9-2Process Bus

WHERE ARE THE SAMPLED VALUES COMING FROM?E

S


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S A M P L E D V A L U E

Merging Units


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Merging Units


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IEC 61850 Standard


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IEC 61850 Standard


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IEC 61850: TESTING

H d t t ll f thi ?


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How do we test all of this?

How do we test the Network Topology (Switches)?

How do we test the Vertical Communication to SCADA?(IEC 61850-8-1, MMS, Reporting)

How do we test Interlockings?(IEC 61850-8-1 GOOSE)

How do we test Protection Schemes?(IEC 61850-8-1 GOOSE and IEC 61850-9-2 SV)

IEC 61850: TESTING


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Information about IEC 61850KTH: Kungliga Tekniska Hgskolan


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University courses on IEC 61850for SA (Substation Automation)

Information about IEC 61850Tissues (Technical Issues) database


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www.tissues.iec61850.comIEC 61850 standard is a dynamic standard !. You must follow it!

IEC 61850 Blog www.blog.iec61850.comInformation about IEC 61850


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Information on new IEC 61850documents

Information on IEC 61850 events

Information on new instruments andtechniques on the IEC 61850

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Competent and fast up to date blog on IEC 61850


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Megger http://www.megger.comInformation om IEC 61850


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gg p ggIEC 61850 test equipment, tools and litterature

KTH == IEC 61850 for Substation Automation 2013-04-12

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