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BY : MANISH TIWARI MANAGER (S/S), BINA

BY : MANISH TIWARI MANAGER (S/S), BINA . SUBSTATION AUTOMATION SYSTEM BASIC CONCEPTS. AUTOMATION SYSTEM. QUICK PROCESSING LESS OPERATION LESS MANPOWER ACCURATE MORE MEMORY COST REDUCTION INTEGRATION OF FUNCTIONS. SUB-STATION AUTOMATION SYSTEM.

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BY : MANISH TIWARI MANAGER (S/S), BINA

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

  2. AUTOMATION SYSTEM QUICK PROCESSING LESS OPERATION LESS MANPOWER ACCURATE MORE MEMORY COST REDUCTION INTEGRATION OF FUNCTIONS

  3. SUB-STATION AUTOMATION SYSTEM A 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 .

  4. 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

  5. WHY DO WE NEED SUB-STATION AUTOMATION ?

  6. SUB-STATION AUTOMATION SYSTEM---TECHNICAL ASPECTS AVAILABILITY OF REAL TIME DATA AS INFORMATION EASY MONITORING OF SYSTEM DATA RECORDING OF DATA ON SET TIME FREQUENCY AVAILBILITY OF PAST DATA & TRENDS FOR PLANNING AND FORECASTING SYNCHROCHECK

  7. SUB-STATION AUTOMATION SYSTEM LOCAL AS WELL AS REMOTE CONTROL / MONITORING SAFETY IN OPERATION DUE TO ADDITIONAL SOFTWARE INTERLOCKING SELF MONITORING OF THE SYSTEM DIRECT CONNECTION TO SWITCHGEAR WITHOUT INTERPOSING COMPONENTS

  8. ECONOMIC ASPECTS REMOTE CONTROL OF SUB-STATIONS

  9. ECONOMIC ASPECTS REDUCTION 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.

  10. SUB-STATION MONITORING AND CONTROL LOCAL CONTROL THROUGH LOCAL HMI REMOTE CONTROL THROUGH REMOTE HMI BAY LEVEL CONTROL IN SWITCH YARD THROUGH BAY CONTROLLER EMERGENCY CONTROL

  11. USE OF MULTIFUNCTIONAL IEDs A SINGLE IED CAN BE USED FOR MULTIPLE FUNCTIONS LIKE DISTANCE RELAY CAN ALSO BE USED FOR OVER/UNDER VOLTAGE PROTECTION AUTORECLOSURE FUNCTION E/F PROTECTION SOTF PROTECTION STUB PROTECTION ETC.

  12. SAS-FEATURES • Based on decentralized architecture • Functions located as close to the process • Architecture shall be structured in two level – Substation and Bay level • Main process information of the station shall be stored in distributed data base

  13. SAS- FEATURES • Located as close as possible to the bay equipments • Located in kiosks with Air Conditioning • IEDs 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

  14. CONTROL HIERARCHY • BAY CONTROLLER IN SWITCHYARD • LOCAL HMI IN CONTROL ROOM • REMOTE CONTROL CENTRE

  15. COMMUNICATION • Data exchange between bay and station level by Fiber-optic communication infrastructure • Communication shall be made on 1+1 mode with failure alarm • Data exchange by IEC 61850 protocol with redundant switched Ethernet communication infrastructure • Two ports each for RCC and RSCC

  16. TIME SYNCHRONISING • A GPS time synchronizing for synchronizing the entire system shall be provided

  17. Station HMI DR Work Station HMI View Node GPS Clock Router Gateway IEC 61850 Redundant Managed Ethernet Station Bus IEC 61850 Switch for Dia 1 Switch for Dia. 2 Switch for Dia. 3 Switch for Dia. N IEC 61850 IEDs for Control & protection IEDs for Control & protection IEDs for Control & protection IEDs for Control & protection TYPICAL ARCHITECTURAL DRAWING OF SUBSTATION AUTOMATION SYSTEM

  18. USE OF MULTIFUNCTIONAL IEDs BAY 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.

  19. BAY CONTROL FUNCTIONS • Software interlocking • Synchro-check • Transformer tap selection • Operation counters for CBs/ Pumps • Alarm functions • Measurement functions • Local HMI • Interface to Station HMI • Data storage for at least 200 events

  20. STATION HMI • Single Line Diagram • Control Dialogue with interlocking and blocking details • Measurement dialogues • Alarm List • Event List • System status • Select before execute procedure for security • Hot standby

  21. USER AUTHORITY • Access rights can be defined for different users such as • Display only • Normal Operation (Open/ Close) • Restricted operation (Bypassed interlocking) • System administrator

  22. MAINTENANCE AUTHORITY • For maintenance and modification of station HMI • No engineering allowed • Engineering/ Configuration allowed • Entire system management allowed Access rights shall be defined by passwords during logging-in

  23. OPERATIONAL ASPECTS LESS 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.

  24. OPERATIONAL ASPECTS FACILITY OF AUTOMATIC REPORT GENERATION MONITORING OF AUXILIARY SERVICES GRAPHICAL 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.

  25. 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.

  26. MAIN ADVANTAGES OF IEC61850 COMMUNICATION PROTOCOL EXCHANGING 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.

  27. CONCLUSION POWERGRID 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.

  28. THANK YOU ALL

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