Substation Automation System (SAS)

49
SUBSTATION AUTOMATION SUBSTATION AUTOMATION SYSTEM (SAS) SYSTEM (SAS) VKJAIN VKJAIN PE-Elect. PE-Elect. NTPC LTD. NTPC LTD.

Transcript of Substation Automation System (SAS)

Page 1: Substation Automation System (SAS)

SUBSTATION AUTOMATION SUBSTATION AUTOMATION SYSTEM (SAS)SYSTEM (SAS)

VKJAINVKJAIN

PE-Elect.PE-Elect.

NTPC LTD.NTPC LTD.

Page 2: Substation Automation System (SAS)

What is SAS?What is SAS?

Use of intelligent electronic devices (IEDs) Use of intelligent electronic devices (IEDs) for protection, control and other data for protection, control and other data acquisition functions to optimize the acquisition functions to optimize the management of capital assets and enhance management of capital assets and enhance operation and maintenance (O&M) operation and maintenance (O&M) efficiencies with minimal human efficiencies with minimal human intervention.intervention.

Page 3: Substation Automation System (SAS)

Why is Automation required?Why is Automation required?

To manageTo manage• Hazardous operationHazardous operation• Repetitive operation Repetitive operation • Complex operationComplex operation

To haveTo have• Faster responseFaster response• Quicker decisionsQuicker decisions• Faster restoration after breakdownFaster restoration after breakdown

BenefitsBenefits• Increased safety of personnel and of equipmentIncreased safety of personnel and of equipment• Increased security, availability, reliability and efficiencyIncreased security, availability, reliability and efficiency• Sequential control with interlocksSequential control with interlocks• Lower operational costLower operational cost• Less dependence on human beingsLess dependence on human beings

Page 4: Substation Automation System (SAS)

Benefits of SASBenefits of SAS

Reduction in physical complexityReduction in physical complexity• Required functionality bundled in fewer componentsRequired functionality bundled in fewer components• Elimination of traditional devices such as alarm annunciators, Elimination of traditional devices such as alarm annunciators,

event loggers, transducers and indicating instruments.event loggers, transducers and indicating instruments.• Reduction in control room spaceReduction in control room space• Reduction in copper wiringReduction in copper wiring

Ease of operation & maintenanceEase of operation & maintenance• Reduced commissioning timeReduced commissioning time• Enable central control of all equipmentEnable central control of all equipment• Enable easy data transferEnable easy data transfer• Simple and easy monitoring of healthiness of all devicesSimple and easy monitoring of healthiness of all devices

Cost optimisationCost optimisation

Page 5: Substation Automation System (SAS)

Conventional SystemConventional System

HARD-WIRED LOGIC IS FORMED IN BMK, CONTROL, RELAY AND PROTECTION PANELS FOR CONTROL AND PROTECTION TRIP FUNCTIONS

HARD- WI RED FI ELD INPUTS FOR

CONTROL AND PROTECTI ON FUNCTIONS

CLOSE / OPEN COMMANDS

PROTECTI ONTRI P

COMMANDS

CONTROL PANELS

RELAY PANELS

CONTROL ROOM

Page 6: Substation Automation System (SAS)

Modern SA architectureModern SA architecture

Interbay BusInterbay Bus

ABB Network Partner AG

C

E

COM581

Network ControlCenter NCC

ABB Network Partner AG

C

E

COM581ABB Network Partner AG

C

E

COM581

Network ControlCenter NCC

-Q1

-Q0 -Q8-Q9

-Q2

-Q1

-Q0 -Q8-Q9

-Q2

=D04+R01225kV LIGNE ABOBO 1ABB

125VDC Di stri butui on Battery A 125VDC Di stri butui on Battery B

BAY CONTROL RELAY REC316*4

1

ABB A B B N etw ork P artner REL316*4

2

43

5678

9

1211

13141516

10

LOCAL CONTROL METERING

LINE PROTECTION RELAY REL316*4

1

ABB A B B N etw ork P artner REL316*4

2

43

5678

9

1211

13141516

10

BUSBAR PROTECTION REB500

ABB A B B N etw ork P artner REB500

ABB

=D 04 A B O B O 1

-Q 2S E L

-Q 1S E L

-Q 0S E L

=W1

=W2

F E R M E RO U V R IR

E X EE S C

LA M P ET E S T E

D IS TA N C E

LO C

ABBP O WE R M O N ITO R IN G U N IT

Pro

cess

Le

vel

Ba

y L

eve

lS

tati

on

Le

vel

Page 7: Substation Automation System (SAS)

Levels of Control AccessLevels of Control Access

Four levels of Control AccessFour levels of Control Access

Level 3 Control from remote (NCC)Level 3 Control from remote (NCC) Level 2 Substation LevelLevel 2 Substation Level Level 1 Bay LevelLevel 1 Bay Level Level 0 Switchyard Equipment levelLevel 0 Switchyard Equipment level

Priority on lowest level to upwardPriority on lowest level to upward

Page 8: Substation Automation System (SAS)

Components of SASComponents of SAS

Bay Control Units (BCU)Bay Control Units (BCU) Bay Protection Units (BPU)Bay Protection Units (BPU) Controllers or servers Controllers or servers

Industrial server with RAID technologyIndustrial server with RAID technology Highest availability and very short MTTRHighest availability and very short MTTR

Metering Master StationMetering Master Station Operator Work StationOperator Work Station Engineering/DR Work stationEngineering/DR Work station Gateways/modemsGateways/modems Time synchronizing EquipmentTime synchronizing Equipment Communication network (fiber optic cable, Ethernet Communication network (fiber optic cable, Ethernet

switches)switches)

Page 9: Substation Automation System (SAS)

Functionality of SASFunctionality of SAS

Bay levelBay level ProtectionProtection

Line (distance, differential)Line (distance, differential) Transformer (differential, overcurrent)Transformer (differential, overcurrent) GeneratorGenerator

ControlControl CB, Isolator, Earth switch controlCB, Isolator, Earth switch control InterlocksInterlocks SynchrocheckSynchrocheck Tap Changer controlTap Changer control AutorecloseAutoreclose

MonitoringMonitoring Status indicationsStatus indications MeasurementsMeasurements Events and alarmsEvents and alarms Fault & disturbance recordsFault & disturbance records TrendsTrends

Page 10: Substation Automation System (SAS)

Functionality of SASFunctionality of SAS

Station levelStation level ProtectionProtection

BusbarBusbar Breaker FailureBreaker Failure

ControlControl Station wide interlocksStation wide interlocks Time synchronizationTime synchronization SynchrocheckSynchrocheck Load sheddingLoad shedding

MonitoringMonitoring Single line diagramSingle line diagram Measurement limit supervisionMeasurement limit supervision Disturbance analysisDisturbance analysis SOE & alarm managementSOE & alarm management Historical data Trends & reportsHistorical data Trends & reports

Page 11: Substation Automation System (SAS)

SAS architectureSAS architecture

CENTRALIZEDCENTRALIZED

Basically the processor is centrally Basically the processor is centrally located and various bay equipments are located and various bay equipments are interfaced through local I/Os and coupling interfaced through local I/Os and coupling relays. relays.

Earlier systems used to be of this type Earlier systems used to be of this type due to limitations of cost of processors due to limitations of cost of processors and technology of communicationand technology of communication

Page 12: Substation Automation System (SAS)

SAS ArchitectureSAS Architecture DISTRIBUTEDDISTRIBUTED Processors have been distributed at each bay. They have both Processors have been distributed at each bay. They have both

I/O cards and processors.I/O cards and processors.

FUNCTIONALLY DISTRIBUTEDFUNCTIONALLY DISTRIBUTED Bay wise processors providedBay wise processors provided BCU/BPU and work stations located in SWYD CRBCU/BPU and work stations located in SWYD CR Copper cabling up to SWYD CR (up to BCU/BPU)Copper cabling up to SWYD CR (up to BCU/BPU) FO cables from relay room to SAS roomFO cables from relay room to SAS room

FUNCTIONALLY & PHYSICALLY DISTRIBUTEDFUNCTIONALLY & PHYSICALLY DISTRIBUTED Bay wise processors providedBay wise processors provided BCU/BPU placed in ac cubicles located in yardBCU/BPU placed in ac cubicles located in yard Work stations located in SAS room in SWYD CRWork stations located in SAS room in SWYD CR Copper cabling limited to the yard onlyCopper cabling limited to the yard only FO cable from ac cubicle to SWYD CRFO cable from ac cubicle to SWYD CR

Page 13: Substation Automation System (SAS)

FunctionallyFunctionally Distributed Architecture Distributed Architecture

Page 14: Substation Automation System (SAS)

LEGEND: BCU Bay Control Unit BPU Bay Protection unit DFR DISTURBANCE and Fault Recorder TSE Time Synchronizing Equipment MMS Metering Master Station OWS Operator Work Station

FUNCTIONALLY DISTRIBUTED ARCHITECTURE

(Sipat, Jhajjar, Simhadri-II, Vallur TPP)

TSETSETSE

BCUBPU

BPU

Bay 1

Inter-bay / Station Bus A

Network Main Controller OWS 1OWS 1OWS 1

Network Standby Controller

Printer

Engg & DFR

Station

Engg & DFR

Station

EngineeringWorkstation

(portable)

(Heartbeat)

Gateway for RLDC/ OS

Control Room

MODEM MODEM

MODEM

RLDCTO OS CONTROL ROOM

COMMUNICATION DEVICEPrinter

Communication: IEC61850 protocol

Inter-bay / Station Bus B

OWS 2OWS 2OWS 2

Gateway for RLDC/ OS

Control Room

MODEM

Rear Projection MIMIC Display (LVS)

Hi-end Dot MatrixPrinter for SOE printing

MMSMMSMMS

BCUBPU

BPU

Bay N

EngineeringWorkstation

(portable)

Page 15: Substation Automation System (SAS)

Functionally & PhysicallyFunctionally & Physically Distributed ArchitectureDistributed Architecture

Page 16: Substation Automation System (SAS)

FUNCTIONALLY & PHYSICALLY DISTRIBUTED ARCHITECTURE

(MAUDA, VSTPP-IV, RhSTPP-III )

BCU BPU BPU

Network Main Controller OWS 1OWS 1

Network Standby Controller

SWYD Control RoomPrinter

BPU BPU

SWYD cubicle Bay n

Communication: IEC61850 protocol

TSETSE

Engg & DFR

Station

EngineeringWorkstation

(portable)

BCU

(Heartbeat)

Gateway for RLDC/ OS Control Room

MODEM MODEM

MODEM

RLDC

TO OS CONTROL ROOM COMMUNICATION DEVICE

Printer

Inter-bay / Station Bus B

OWS 2OWS 2

Gateway for RLDC/ OS Control Room

MODEM

Rear Projection MIMIC Display (LVS)

Hi-end Dot MatrixPrinter for SOE printing

MMSMMS

SWITCHYARDSWYD cubicle

Bay n

Page 17: Substation Automation System (SAS)

MERITS OF FUNCTIONALLY & PHYSICALLY MERITS OF FUNCTIONALLY & PHYSICALLY DISTRIBUTED ARCHITECTUREDISTRIBUTED ARCHITECTURE

REDUCTION IN QUANTITY OF CONTROL CABLES REDUCTION IN SIZE OF SWITCHYARD CONTROL

ROOM REDUCTION IN CABLE TRENCHES BETTER ENERGY METERING ACCURACY MINIMIZE THE EFFECT OF STRAY VOLTAGES REDUCTION IN AIR CONDITIONING REQUIREMENTS EASIER SWITCHYARD EXTENSIONS REDUCTION IN SWITCHYARD EXECUTION TIME

Page 18: Substation Automation System (SAS)

FutureFuture SA architecture SA architecture

Page 19: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED ARCHITECTUREBENEFITS OF DISTRIBUTED ARCHITECTURE

• EASIER SWITCHYARD EXTENSIONS

• REDUCED IMPACT OF STRAY VOLTAGES

• IMPROVED ENERGY METERING ACCURACY

• COST REDUCTION

Page 20: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED ARCHITECTUREBENEFITS OF DISTRIBUTED ARCHITECTURE

BETTER ENERGY METERING ACCURACYBETTER ENERGY METERING ACCURACYCentralized Architecture Distributed Architecture

1.0 Input Voltage (V) : 63.51 63.51

2.0 Length of CVT Secondary Leads : 450.00 50.00

3.0 Cable Impedance per km (10mm2) : 2.18 2.18

4.0 Energy Meter Burden (VA) : 1.00 1.00

5.0 No. of Meters : 3 3

6.0 Current Drawn by Meters (A) : 0.0472 0.0472

7.0 Voltage Dtop (V) : 0.0926 0.0103

8.0 Percentage Voltage Drop : 0.1458 0.0162

9.0Improvement in percentage voltage drop

:0.1296

10.0 Improvement in Energy Metering Accuracy in (MU) for a 2000MW plant in one year considering a PLF of 85% and Availability of 95%

: 18.08

11.0 Benefit per year in Million Rupees @ Rs. 2.00 per unit due to improvement in Energy Metering Accuracy

: 36.16

i.e. Rs. 3.62 Crores per year

Page 21: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED BENEFITS OF DISTRIBUTED ARCHITECTUREARCHITECTURE REDUCTION IN QUANTITY OF REDUCTION IN QUANTITY OF

CONTROL CABLESCONTROL CABLES

Rs. 25.0 lacsSavings including taxes and erection costs

Rs. 17.47 lacsAnticipated Savings in Cable Supply Costs per Diameter

Rs. 7.10 lacs10.0 kmRs. 24.57 lacs32.0 km Total:

Rs. 1.875 lacs2.5 kmRs. 0.375 lacs0.5 km

Rs. 75000/-Fiber Optic Cable

Rs. 1.16 lacs1.0 kmRs. 7.0 lacs6 kmRs. 116497/-19CX2.5 mm2

Rs. 0.9 lacs1.0 kmRs. 5.7 lacs6.5 kmRs. 87666/-14CX2.5 mm2

Rs. 1.28 lacs2.0 kmRs. 9.64 lacs15 kmRs. 64238/-10CX2.5 mm2

Rs. 0.8 lacs1.5 kmRs. 0.8 lacs1.5 kmRs. 52148/-7CX2.5 mm2

Rs. 1.05 lacs2.5 kmRs. 1.05 Lacs2.5 kmRs. 42130/-5CX2.5 mm2

CostLengthCostLength

Distributed Architecture

Centralized ArchitectureRate per kmCable Size

Page 22: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED BENEFITS OF DISTRIBUTED ARCHITECTUREARCHITECTURE

REDUCTION IN SIZE OF REDUCTION IN SIZE OF CONTROL ROOMCONTROL ROOM

FIRST FLOOR IS NOT REQD. IN DISTRIBUTED ARCHITECTURE

Page 23: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED BENEFITS OF DISTRIBUTED ARCHITECTUREARCHITECTURE

REDUCTION IN SIZE OF REDUCTION IN SIZE OF CONTROL ROOM (Contd.)CONTROL ROOM (Contd.)

Cable vault not required in Distributed Architecture

Electrical Lab

Page 24: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED ARCHITECTUREBENEFITS OF DISTRIBUTED ARCHITECTURE

REDUCTION IN SIZE OF CONTROL REDUCTION IN SIZE OF CONTROL ROOM (Contd.)ROOM (Contd.)

Rs. 1.155 Crores (67%)Savings:

Rs. 0.567 CroresRs. 1.722 CroresCost @ Rs. 10000 per m2:

567 m21722 m2Total Area:

18 m2Store

72 m2Lounge

90 m2Conference Room, Office etc.

186 m2AHU Room

Not Required375 m2C&R Panels RoomFirst Floor

18 m2On the 1st FloorStore

Not Required36 m2Lounge etc.

72 m2On the 1st FloorOperator’s Room

180 m2180 m2LT Switchgear

222 m2222 m2Battery Room

Not Required93 m2AC Plant

75 m275 m2Lab

Some of the facilities which are provided on 1st floor in centralized architecture are shifted to ground floor in distributed architecture.

Not Required375m2Cable VaultGround Floor

RemarksDistributed Architecture

Centralized ArchitectureAreaFloor

Page 25: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED ARCHITECTUREBENEFITS OF DISTRIBUTED ARCHITECTURE

REDUCTION IN CABLE TRENCHESREDUCTION IN CABLE TRENCHES

Page 26: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED ARCHITECTUREBENEFITS OF DISTRIBUTED ARCHITECTURE

REDUCTION IN CABLE TRENCHES REDUCTION IN CABLE TRENCHES (Contd.)(Contd.)

S. S. No.No. ItemItem Centralized Centralized

ArchitectureArchitectureDistributed Distributed ArchitectureArchitecture

1.1. Length of Equivalent 2-2 Length of Equivalent 2-2 Section Cable Trench in Section Cable Trench in two opposite 400kV two opposite 400kV DiametersDiameters

529 m529 m 329 m329 m

2. 2. Reduction in Equivalent Reduction in Equivalent 2-2 Section cable trench 2-2 Section cable trench in distributed architecturein distributed architecture

200 m200 m

3.3. Per unit cost of Per unit cost of construction of 2-2 construction of 2-2 section cable trenchsection cable trench

Rs. 9900 / mRs. 9900 / m

4.4. Savings in cable trenchesSavings in cable trenches Rs. 1980000 ~ Rs. 0.2 Rs. 1980000 ~ Rs. 0.2 CroresCrores

Page 27: Substation Automation System (SAS)

BENEFITS OF DISTRIBUTED ARCHITECTUREBENEFITS OF DISTRIBUTED ARCHITECTURE

AIR CONDITIONING REQUIREMENTSAIR CONDITIONING REQUIREMENTS

Savings in Energy Costs towards Air Conditioning System (Typical for Sipat 765kV Swyd. CR)

Centralized Architecture

Distributed Architecture

1Size of Air Conditioning System

: 2 X 80TR 17 X (2 X 2TR)

2Electrical (AC) Load @ 1kW per TR

: 80 kW 34 KW

3Reduction in Electrical Load

: 46 kW

4Savings in Energy per year

: 402500 Units/Year

5Savings @ Rs. 2.00 per unit

: Rs. 8.05 lacs

i.e. Rs. 8.05 Lacs per year

Page 28: Substation Automation System (SAS)

ADDITIONAL ITEMS REQD. IN DISTRIBUTED ADDITIONAL ITEMS REQD. IN DISTRIBUTED ARCHITECTUREARCHITECTURE

FOLLOWING ADDIONAL ITEMS ARE REQD. IN FOLLOWING ADDIONAL ITEMS ARE REQD. IN THE DISTRIBUTED ARCHITECTURETHE DISTRIBUTED ARCHITECTURE

• FIBRE OPTIC CABLE – MORE QUANTITY REQD.

• AIR CONDITIONED BAY KIOSKS

Page 29: Substation Automation System (SAS)

ACCEPTANCE OF DISTRIBUTED ACCEPTANCE OF DISTRIBUTED ARCHITECTURE IN INDUCTRYARCHITECTURE IN INDUCTRY

WIDELY ADOPTED ARCHITECTURE IN EHV WIDELY ADOPTED ARCHITECTURE IN EHV SUBSTATIONS IN INDIASUBSTATIONS IN INDIA

FOLLOWING EHV SWITCHYARDS ARE BEING FOLLOWING EHV SWITCHYARDS ARE BEING IMPLEMENTED WITH DISTRIBUTED IMPLEMENTED WITH DISTRIBUTED ARCHITECTUREARCHITECTURE

• SEONI 765kV S/S OF PGCIL BY SIEMENS

• RANCHI 400kV OF PGCIL BY SIEMENS

• TALLAK 400kV OF KPTCL BY AREVA

• YAMUNANAGAR 400kV OF RELIANCE ENERGY BY AREVA

Page 30: Substation Automation System (SAS)

DISTRIBUTED ARCHITECTUREDISTRIBUTED ARCHITECTURE

COST BENEFIT ANALYSIS FOR NORTH COST BENEFIT ANALYSIS FOR NORTH KARANPURA (3 x 660MW)KARANPURA (3 x 660MW)

Page 31: Substation Automation System (SAS)

CONCLUSIONCONCLUSIONPROPOSED DISTRIBUTED ARCHITECTURE OFFERS FOLLOWING TANGIBLE AND INTANGIBLE BENEFITS

REDUCTION IN QUANTITY OF CONTROL CABLES

REDUCTION IN SIZE OF SWITCHYARD CONTROL ROOM

REDUCTION IN CABLE TRENCHES

BETTER ENERGY METERING ACCURACY

MINIMIZE THE EFFECT OF STRAY VOLTAGES

REDUCTION IN AIR CONDITIONING REQUIREMENTS

EASIER SWITCHYARD EXTENSIONS

REDUCTION IN SWITCHYARD EXECUTION TIME

Page 32: Substation Automation System (SAS)

IEC 61850IEC 61850 Global standard for “Global standard for “Communication Networks and Systems in Communication Networks and Systems in

SubstationsSubstations””

Salient FeaturesSalient Features Open Protocol – Open Protocol – It does not block future development of functionsIt does not block future development of functions.. It is open for new future communication concepts.It is open for new future communication concepts.

Interoperability – Interoperability – Devices from different vendors can exchange andDevices from different vendors can exchange and use information over a common communication media. use information over a common communication media. It specifies an expandable data model and services.It specifies an expandable data model and services. It provides Substation configuration language (SCL).It provides Substation configuration language (SCL). It uses Ethernet and TCP/IP for communication.It uses Ethernet and TCP/IP for communication.

UCA 2.0 is a subset of IEC 61850UCA 2.0 is a subset of IEC 61850

Page 33: Substation Automation System (SAS)
Page 34: Substation Automation System (SAS)

Data ModellingData Modelling IEC 61850 divides data into logical groupings as below:IEC 61850 divides data into logical groupings as below:

Page 35: Substation Automation System (SAS)

Data ModellingData Modelling

Page 36: Substation Automation System (SAS)

Logical Node (LN)Logical Node (LN) All information and functions in a substation is structured in All information and functions in a substation is structured in

atomic units, the LNs.atomic units, the LNs. Each LN provides a list of well organized and named information.Each LN provides a list of well organized and named information. Services enable the exchange of information in LNs between IEDs.Services enable the exchange of information in LNs between IEDs. New logical nodes, if required, can be created according to the New logical nodes, if required, can be created according to the

rules defined in the standard.rules defined in the standard. 92 LNs in total divided into 13 groups.92 LNs in total divided into 13 groups.

Page 37: Substation Automation System (SAS)

LN GroupsLN Groups

PDIS DistancePTOC OvercurrentPTOV Overvoltage….

XCBR Circuit breakerXSWI Isolator…..

RBRF Breaker failureRDRE Disturbance Recorder….

Page 38: Substation Automation System (SAS)

CB Information depicted as treeCB Information depicted as tree

Page 39: Substation Automation System (SAS)

Logical InterfacesLogical Interfaces

IF1: protection-data exchange between bay and IF1: protection-data exchange between bay and station levelstation level

IF2: protection-data exchange between bay level IF2: protection-data exchange between bay level and remote protection and remote protection

IF3: data exchange within bay levelIF3: data exchange within bay level IF4: CT and VT instantaneous data exchange IF4: CT and VT instantaneous data exchange

(especially samples) between process and bay (especially samples) between process and bay levellevel

IF5: control-data exchange between process IF5: control-data exchange between process and bay leveland bay level

Page 40: Substation Automation System (SAS)

Logical InterfacesLogical Interfaces

IF6: control-data exchange between bay and IF6: control-data exchange between bay and station levelstation level

IF7: data exchange between substation (level) IF7: data exchange between substation (level) and a remote engineer’s workplaceand a remote engineer’s workplace

IF8: direct data exchange between the bays IF8: direct data exchange between the bays especially for fast functions like interlocking especially for fast functions like interlocking

IF9: data exchange within station levelIF9: data exchange within station level IF10: control-data exchange between substation IF10: control-data exchange between substation

(devices) and a remote control center (devices) and a remote control center

Page 41: Substation Automation System (SAS)

CommunicationCommunication

Vertical CommunicationVertical Communication

Peer to Peer communicationPeer to Peer communication

Page 42: Substation Automation System (SAS)

Peer-Peer CommunicationPeer-Peer Communication

Generic Substation EventGeneric Substation Event Based upon the asynchronous reporting of an IED’s Based upon the asynchronous reporting of an IED’s

functional elements status to other peer devices enrolled functional elements status to other peer devices enrolled to receive it during the configuration stages of the to receive it during the configuration stages of the substation integration processsubstation integration process

Used to replace the hard wired control signal exchange Used to replace the hard wired control signal exchange between IED’s for interlocking and protection purposes between IED’s for interlocking and protection purposes

Mission sensitive, time critical and must be highly Mission sensitive, time critical and must be highly reliable.reliable.

2 versions:2 versions: GSSE (compatible with UCA2 GOOSE)GSSE (compatible with UCA2 GOOSE) (IEC) GOOSE - expanded, can include analogue values also(IEC) GOOSE - expanded, can include analogue values also

Page 43: Substation Automation System (SAS)

Priority TaggingPriority Tagging

Page 44: Substation Automation System (SAS)

Information flow - ServicesInformation flow - Services

Page 45: Substation Automation System (SAS)

ServicesServices

Control devices (Operate service or by multicast Control devices (Operate service or by multicast trip signals) (1)trip signals) (1)

fast and reliable peer-to-peer exchange of status fast and reliable peer-to-peer exchange of status information (tripping or blocking) (2)information (tripping or blocking) (2)

reporting of any set of data (data attributes), SoE reporting of any set of data (data attributes), SoE – cyclic and event triggered (3)– cyclic and event triggered (3)

logging and retrieving of any set of data (data logging and retrieving of any set of data (data attributes) – cyclic and event triggered (4)attributes) – cyclic and event triggered (4)

substitution (5)substitution (5)

Page 46: Substation Automation System (SAS)

handling and setting of parameter setting handling and setting of parameter setting groupsgroups

transmission of sampled values from transmission of sampled values from sensors,sensors,

time synchronisation (SNTP),time synchronisation (SNTP), file transfer,file transfer,online configuration (6), andonline configuration (6), andretrieving the selfdescription of a device retrieving the selfdescription of a device

(7)(7)

ServicesServices

Page 47: Substation Automation System (SAS)

Substation Configuration Language (SCL)Substation Configuration Language (SCL)

Description language for communication in electrical Description language for communication in electrical substations related to the IEDssubstations related to the IEDs

XML based language that allows a formal description of XML based language that allows a formal description of Substation automation system and the switchyard and Substation automation system and the switchyard and the relation between themthe relation between them

SSD: System Specification DescriptionSSD: System Specification Description

SCD: Substation Configuration DescriptionSCD: Substation Configuration Description

ICD: IED Capability DescriptionICD: IED Capability Description

CID: Configured IED DescriptionCID: Configured IED Description

Page 48: Substation Automation System (SAS)

ConfigurationConfiguration

Standardizing the application level is the next challenge to come

IEDDB

EngineeringWorkplace

SystemConfigurator

IED Capabilities(LN, DO, …)

Associations, relation to single line,preconfigured reports, ...

System specification(Single line, LNs, …)

ICD SSD

SCD

Configurator

IED

Page 49: Substation Automation System (SAS)

THANK YOUTHANK YOU