BY : MANISH TIWARI MANAGER (S/S), BINA SUBSTATION AUTOMATION SYSTEM BASIC CONCEPTS

BY : MANISH TIWARIMANAGER (S/S), BINA

SUBSTATION AUTOMATION SYSTEMBASIC CONCEPTS

AUTOMATION SYSTEMQUICK PROCESSINGLESS OPERATION LESS MANPOWERACCURATE MORE MEMORYCOST REDUCTIONINTEGRATION OF FUNCTIONS

SUB-STATION AUTOMATION SYSTEMA NEW STATE OF THE ART TECHNOLOGY

INTRODUCED IN VARIOUS NEWLY COMMISSIONED & UP COMING SUB-STATIONS OF POWERGRID.

THIS NEW TECHOLOGY FULLY EXPLORES THE USE OF STANDARD IEC61850 COMMUNICATION PROTOCOL FOR MONITORING AND CONTROL OF SUB-STATION .

WHAT IS SUB-STATION AUTOMATION SYSTEM ?

INTEGRATION OF MONITORING , PROTECTION AND CONTROL FUNCTIONS AT MINIMAL NUMBER OF PLATFORMS

1. AIMS AT REDUCTION OF OPERATING COST 2. REDUNDANT EQUIPMENT AND DATABASES

SUB-STATION AUTOMATION SYSTEM---TECHNICAL ASPECTSAVAILABILITY OF REAL TIME DATA AS

INFORMATIONEASY MONITORING OF SYSTEM DATARECORDING OF DATA ON SET TIME

FREQUENCYAVAILBILITY OF PAST DATA & TRENDS FOR

PLANNING AND FORECASTINGSYNCHROCHECK

SUB-STATION AUTOMATION SYSTEMLOCAL AS WELL AS REMOTE CONTROL /

MONITORINGSAFETY IN OPERATION DUE TO ADDITIONAL

SOFTWARE INTERLOCKINGSELF MONITORING OF THE SYSTEM DIRECT CONNECTION TO SWITCHGEAR

WITHOUT INTERPOSING COMPONENTS

ECONOMIC ASPECTSREMOTE CONTROL OF SUB-STATIONS

REGION REMOTE CONTROLLED S/S WITH SS AUTOMATION

MASTER S/S

NR-II FATEHABADLUDHIANA

HISARJALANDHAR

NR-I BAREILYDELHI

LUCKNOWBALLABHGARH

ER-I PATNA BIHARSHARIF

SR-I WARANGAL VIZAG(HVDC)

SR-II TIRUNELVELI UDMULPET

WR-I RAIGARH, BHATAPARAWARDHA

RAIPURSEONI

WR-II RAJGARH KHANDWA

PUNE, NEW PERLI BOISAR

ECONOMIC ASPECTSREDUCTION IN INVESTMENT COST BY 1. SMALL CONTROL ROOM BUILDING

2. REDUCTION OF COPPER CABLE

3. REDUCED SIZE OF CABLE TRENCHES

4. BETTER USE OF UNUTILISED SPACE OF SWITCHYARD BY PLACING BAY KIOSK.

SUB-STATION MONITORING AND CONTROL LOCAL CONTROL THROUGH LOCAL HMIREMOTE CONTROL THROUGH REMOTE

HMIBAY LEVEL CONTROL IN SWITCH YARD

THROUGH BAY CONTROLLEREMERGENCY CONTROL

USE OF MULTIFUNCTIONAL IEDsA SINGLE IED CAN BE USED FOR MULTIPLE

FUNCTIONS LIKE DISTANCE RELAY CAN ALSO BE USED FOR

OVER/UNDER VOLTAGE PROTECTIONAUTORECLOSURE FUNCTIONE/F PROTECTIONSOTF PROTECTION STUB PROTECTION ETC.

SAS-FEATURESBased on decentralized architectureFunctions located as close to the processArchitecture shall be structured in two level –

Substation and Bay levelMain process information of the station shall

be stored in distributed data base

SAS- FEATURESLocated as close as possible to the bay

equipmentsLocated in kiosks with Air ConditioningIEDs shall provide all bay level functions

regarding Control and Monitoring Each bay control IED shall be independent from

each other Input to Bay IED is Electrical and output is optical

CONTROL HIERARCHY BAY CONTROLLER IN SWITCHYARD

LOCAL HMI IN CONTROL ROOM

REMOTE CONTROL CENTRE

COMMUNICATIONData exchange between bay and station level by

Fiber-optic communication infrastructureCommunication shall be made on 1+1 mode with

failure alarmData exchange by IEC 61850 protocol with

redundant switched Ethernet communication infrastructure

Two ports each for RCC and RSCC

TIME SYNCHRONISING A GPS time synchronizing for synchronizing

the entire system shall be provided

TYPICAL ARCHITECTURAL DRAWING OF SUBSTATION AUTOMATION SYSTEM

Switch for Dia 1

Switch for Dia. 2

Switch for Dia. 3

Switch for Dia. N

IEC 61850

IEC 61850

IEC 61850

Station HMIHMI View Node

DR Work Station

Redundant Managed Ethernet Station Bus

GatewayGPS ClockRouter

IEDs for Control & protection

IEDs for Control & protection

IEDs for Control & protection

IEDs for Control & protection

USE OF MULTIFUNCTIONAL IEDsBAY CONTROL UNIT WHICH IS BEING USED FOR ANALOG

AND DIGITAL DATA ACQUISITION AND BAY EQUIPMENT CONTROL FUNCTIONS FROM IED ITSELF AS WELL AS FROM CONTROL ROOM FOR ONE BAY, HAS CAPABILITY OF CONRTOLLING & MONITORING MAXIMUM 6 BAYS ALONG WITH AUTO VOLTAGE CHECK SYNCHRONISING FUNCTIONS USED FOR CHARGING OF LINES.

BAY CONTROL FUNCTIONSSoftware interlockingSynchro-checkTransformer tap selectionOperation counters for CBs/ PumpsAlarm functionsMeasurement functionsLocal HMIInterface to Station HMIData storage for at least 200 events

STATION HMISingle Line DiagramControl Dialogue with interlocking and blocking detailsMeasurement dialoguesAlarm ListEvent ListSystem statusSelect before execute procedure for securityHot standby

USER AUTHORITYAccess rights can be defined for different users

such asDisplay onlyNormal Operation (Open/ Close)Restricted operation (Bypassed interlocking)System administrator

MAINTENANCE AUTHORITYFor maintenance and modification of station HMI

No engineering allowedEngineering/ Configuration allowedEntire system management allowedAccess rights shall be defined by passwords during

logging-in

OPERATIONAL ASPECTSLESS HARDWIRING RESULTS IN INCREASED RELIABILITY

OF THE SYSTEM AND LESSER FAULT DETECTION TIME AT SECONDARY SIDE.

SOFTWARE ENABLES QUICK APPROACH TO PROCESS THE DATA FOR UNDERSTANDING THE CAUSE OF DISTURBANCE, FOR FAST CORRECTIVE ACTIONS.

“ASK BEFORE EXECUTE” FUNCTIONS RESULTS IN LESS PROPBABILITY OF SWICTHING ERROR BY OPERATOR.

OPERATIONAL ASPECTSFACILITY OF AUTOMATIC REPORT GENERATIONMONITORING OF AUXILIARY SERVICESGRAPHICAL SIGNAL MATRIX TOOLS ALLOWS US TO

EFFICIENTLY CONNECT CTs, VTs AND BINARY I/O SIGNALS WITHOUT CHANGING THE CONFIGURATION OF IEDs.

SOFTWARE INTERLOCKING IN ADDITION TO HARDWARE INTERLOCKING AVOIDS DANGOUROUS OR DAMAGING SWITCHGEAR OPERATIONS TO ENSURE PERSONNEL SAFETY.

IEC 61850 COMMUNICATION PROTOCOL A STANDARD PROTOCOL WHICH SUPPROTS

INTEROPERABILITY OF IEDs FROM DIFFERENT MANUFACTURERS.

INTEROPERABILITY IS THE ABILITY TO OPERATE ON THE SAME NETWORK OR COMMUNICATION PATH SHARING INFORMATION AND COMMANDS.

MAIN ADVANTAGES OF IEC61850 COMMUNICATION PROTOCOLEXCHANGING INFORMATION AND CO-OPERATION BETWEEN

DIFFERENT IEDs OF DIFFERENT MANUFACTURERS.ENABLES COMMUNICATION BETWEEN IEDs AND HMI FOR

CONTROL AND MONITORING OF SUB-STATION.PROVIDES FLEXIBILITY TO ADOPT SUB-STATION ARCHTECTURE

IN RESPONSE TO SPECIFIC REQUIREMENT BASED ON AVAILABILITY AND BUDGET.

PROVIDES ADAPTABILITY WITH FUTURE INNOVATIONS WITHIN SUB-STATION AUTOMATION AND COMMUNICATION TECHNOLOGY.

CONCLUSIONPOWERGRID HAS TAKEN A STEP TOWARDS ADOPTING

NEW TECHNOLOGY REQUIRED TO MEET TOUGH CHALLENGES AGAINST THE VIDE EXPANSION OF TRANSMISSION NETWORK.

IT WILL ALSO MAKE POSSIBLE TO SUPERVISE THE ENTIRE SYSTEM IN A BETTER WAY WITH THE ULTIMATE GOAL TO MINIMISE THE ENERGY NOT SUPPLIED AND AT IMPROVED RATE OF AVAILABILITY.

THANK YOU ALL