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IEC-61850 Based

Substation Automation Solution

R. P. Gupta, Ph.D.

DGM and Adj. Assoc. Professor

Distribution Automation Research Centre

Corporate R & D and QualityCrompton Greaves Ltd.

Mumbai

Oct 30-31, 2007

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PresentationPresentation

- Introduction

- Substation Automation Architecture in compliance

with IEC61850

- IEC61850 Protocol and standards

- Conceptual Realization of SA Function in IEC61850 Environment

- Conclusions

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Conventional Substation withConventional Substation with

Control & Relay PanelsControl & Relay Panels

A Bunch of HardA Bunch of Hard

ControlControl--WiresWires

Control RoomControl Room

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Automated SubstationAutomated Substation

Key Benefits

Reduction in the size of panels and control room

Reduction in hard control wirings

Efficient system operation using computer aided control decision

Reduction in O & M costs

Control RoomControl Room

Ethernet Wire

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IEC61850 Based Substation AutomationIEC61850 Based Substation Automation

Ethernet Switch

SCADAComputer

EthernetEthernet

SubstationSubstation

ControlControlRoomRoom

OutdoorOutdoor

SwitchSwitch--yardyard

HardHardControlControl--WireWire

Bay 1

CTCT PTPT

Monitoring

& Control

Protection

CTCT PTPT

Monitoring

& Control

Protection

Bay 2

EthernetEthernet

SubstationSubstation

LevelLevel

IntelligenceIntelligence

Bay LevelBay LevelIntelligenceIntelligence

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BCU : Bay Cantrol Unit, BPU : Bay Protection Unit

A Typical Substation Automation SystemA Typical Substation Automation System

BCU and BPU BCU and BPU BCU and BPU

Gateway

IEC61850 Over

Fibre Optic Cable

To / From Master

Control Centre(MCC)

GOOSE

Messages

GOOSE

Messages

MainHuman Machine

Interface (HMI)

BackupHuman Machine

Interface (HMI)

Main

Substation Unit

(SU)

Backup

Substation Unit

(SU)

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Basic SCADA FunctionsBasic SCADA FunctionsData Monitoring and Control Functions

File Open

Print Preview

Print

Exit

View Default Layout

Customized Layout

Customized Layout Setting

Static and dynamic data

Find

Go To

Zoom

Operation Start Automation

Stop Automation

Switch Close Operation

Switch Open Operation

Time Synchronization

Refresh

Alarm

Alarm List

Alarm Setting

Alarm Blocking List

Filters

Reports

Event Reports Log Reports

Other Reports

Event Filters

Logout

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Data Communication ProtocolData Communication Protocol

- Key Element for Substation Automation

- Protocol required to interpret the data at both ends ofcommunication system in same way

- Conventional Protocol Tag + Data

(Tag mapping table required for system integration)

- IEC61850 Protocol Context + Data

(Context is defined in the IEC61850 Standard.)

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Integration & InteroperabilityIntegration & Interoperability

- Importing ICD File from IEDs

- IED configuration as per requirement using

IED Configuration Tools

- Exporting CID File to IEDs

- Importing CID File from IEDs

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IEC61850 Based Design Concept of

Substation Automation

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An Example of Protection systemAn Example of Protection system

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IEC61850 Based Data Modeling

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IEC61850 Based Data

Communication Stacks

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IEC61850 Based Data Model

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IEC61850 Based References

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Data Exchange Between

SCADA Computer and IEDs

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Input and Output of IEDs

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Output Model

Step-1Step-2

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IEC61850 Based Reporting & LoggingIEC61850 Based Reporting & Logging

MechanismMechanism

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IEC61850 Based Reporting MechanismIEC61850 Based Reporting Mechanism

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ClientClient--Server Transaction for ReportingServer Transaction for Reporting

MechanismMechanism

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Reporting Data SequenceReporting Data Sequence

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ClientClient--Server Transaction for LoggingServer Transaction for Logging

MechanismMechanism

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IED to IED CommunicationIED to IED Communication

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Building Block of Server systemBuilding Block of Server system

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ConclusionsConclusions

- IEC61850 provides full interoperability feature

-3rd party IED can be easily integrated into the existingsubstation using ICD and CID files

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ThanksThanks