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Instrumentation & Control For Thermal Power Plant
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Instrumentation & Control For Thermal Power Plant Presentation Transcript

  • 1. INSTRUMENTATION & CONTROL FOR THERMAL POWER PLANT AN INTRODUCTION
    • SHIVAJI CHOUDHURY
    • SE (I&C DESIGN) ,MPPGCL, JABALPUR
  • 2. OBJECTIVE OF INSTRUMENTATION & CONTROL
    • SAFE OPERATION OF PLANT
    • LOWEST COST OF GENERATION
    • LONGEST EQUIPMENT LIFE
    • MINIMUM ENVIROMENTAL FFECTS
    • MAXIMUM EFFICIENCY
    • ENERGY CONSERVATION
  • 3.  
  • 4.  
  • 5. OVERVIEW OF INSTRUMENTATION & CONTROL
    • DDCMIS (DISTRIBUTED DIGITAL CONTROL & MANAGEMENT INFORMATION SYSTEM)
    • BURNER MANAGEMENT SYSTEM
    • TURBINE CONTROL SYSTEM
    • GENERATOR INSTRUMENTS
    • ANALYSERS
    • MEASUREMENT
  • 6. OBJECTIVE OF DDCMIS
    • HIGH RELIABILITY .
    • IMPROVED RESPONSE TIME
    • EXTEND PLANT EQUIPMENT LIFETIME.
    • IMPROVE OPERATOR INTERFACE TO PLANT
    • IMPROVE ACCESSABILITYOF PLANT DATA TO ENGINEERING &MANAGEMENT PERSONAL
    • HISTORICAL STORAGE AND RETRIVAL SYSTEM
  • 7. DDCMIS
    • MAN MACHINE INTERFACE
    • PLANT INFORMATION SYSTEM
    • AUTO CONTROL SYSTEM
    • INTERLOCK & PROTECTION
    • BURNER MANAGEMENT SYSTEM
    • TURBINE CONTROL SYSTEM
    • GENERATOR INSTRUMENTATION
    • SEQUENCE OF EVENTS RECORDING SYSTEM
    • MEASUREMENT
    • PROGRAMMING/DOCUMENTATION
  • 8. DDCMIS –MaxDNA ( 500 MW )
    • REDUNDENT CONTROLLERS-32 BIT MICROPROCESSORS
    • INPUT ANALOG CARDS for THERMOCOUPLE, RTD, MILLI VOLTS, 4-20MA.
    • OUTPUT ANALOG CARDS
    • SEQUENCE OF EVENT CARD
    • INPUT/ OUTPUT DIGITAL CARDS
    • POWER SUPPLY MODULE
    • ALL CONTROLLERS ARE CONNECTED WITH DATA HI WAY
    • OPERATOR WORK STATION ( PC)
  • 9. DDCMIS Architecture
  • 10. Man Machine Interface
    • CRT/TFT MONITORS (OPERATOR WORK STATION-PC)
    • PRINTERS
    • INDICATERS
    • RECORDERS
    • ANNUNCIATION SYSTEM
    • DESK MOUNTED PB ILL PB
  • 11. Operator workstation-Display
    • ALARM MONITORING & REPORTING
    • MIMIC/GRAPHIC DISPLAY
    • TREND DISPLAY(X-T )
    • X-Y PLOT
    • OPERATOR GUIDENCE DISPLAY
    • SYSTEM & DIAGNOSTIC DISPLAY
    • CONTROL
    • BAR CHART
    • SEQUENCE DISPLAY
    • FAULT ANALYSIS DISPLAY
  • 12. LOGS / SUMMARIES / REPORTS
    • EVENT ACTIVATED LOGS - ALARM LOG, TRIP ALARM ANALYSIS LOG ,STARTUP LOG
    • TIME ACTIVATED LOGS -SHIFT LOG,,DAILY LOG
    • OPERATOR DEMAND LOGS -SUMMARY LOG,PERFORMANCE LOG, MAINTENANCE LOG
    • SEQUENCE OF EVENTS LOG
  • 13. AUTO CONTROL LOOP
    • COORDINATED CONTROL
    • TOTAL AIR CONTROL
    • SUPER HEATER/ REHEATER TEMP CONTROL
    • MILL OUT TEMP CONTROL
    • HOTWELL LEVEL CONTROL
    • LP/ HP HEATER LEVEL CONTROL
    • DEARATOR LEVEL /PRESSURE CONTROL
    • DRUM LEVEL CONTROL
    • FURNACE DRAFT CONTROL
    • MILL AIR FLOW CONTROL
    • HFO/LDO PRESS /FLOW CONTROL
  • 14. INTERLOCK & PROTECTION
    • INTERLOCK &PROTECTION ARE USED FOR SAFE START UP / OPERATION / SHUTDOWN / TRIP OF ANY EQUIPMENT OR AUXILLARY EXAMPLES
    • CW PUMP,ID FAN ,FD FAN,BOILER FEED PUMP,CEP, MILL ,PA FANS ,PUMPS
    • LP / HP HEATERS
    • AIR HEATERS
    • REHEATER PROTECTION
    • VALVE &DRAINS
  • 15. BURNER MANAGEMENT SYSTEM
    • THE SYSTEM PROVIDE INCREASED SAFTY & RELIABILITY FOR FURNANCE
    • PROTECTION FROM IMPOLTION & EXPLOTION
    • FURNACE PURGE SUPERVISION
    • HIGH ENERGY ARC IGNITOR CONTROL
    • LDO/ HFO OIL ON/ OFF CONTROL
    • PULVERISER & FEEDER CONTROL / SUPERVISION
    • FLAME SCANNER INTELLIGENCE
  • 16. TURBINE CONTROL SYSTEM
    • TURBINE GOVERNING SYSTEM
    • TURBINE STRESS CONTROL SYSTEM
    • HP/LP BYPASS
    • AUTOMATIC TURBINE RUNUP SYSTEM ( ATRS)
    • TURBINE SUPERVISORY SYSTEM
  • 17. AUTOMATIC TURBINE RUNUP SYSTEM (ATRS)
    • AUTOMATIC STARTUP/ SHUT DOWN SEQUENCE
    • STRESS /TEMPRETURE MARGIN CONTROL ACCELERATION
    • STRESS/TEMPRETURE MARGIN CONTROLLED LOADING/UNLOADING
    • AUTOMATIC SYNCHRONISATION AND LOADING UPTO 100% MCR
    • UNLOADING & SHUTDOWN OF MACHINE
  • 18. TURBINE SUPERVISORY SYSTEM
    • BEARING VIBRATION
    • SHAFT VIBRATION
    • DIFF EXPANTION OF ROTOR AND CYLINDER FOR HPT/IPT/LPT
    • OVERALL EXPANTION OF HPT/IPT
    • AXIAL SHIFT OF ROTOR
    • TURBINE SPEED
    • EMERGENCY STOP & CONTRL VALVE POSITION
    • BEARING TEMPRETURE OF TUBINE
  • 19. DDCMIS CONTROLLER GROUPING DETAILS-BOILER(500MW)
    • MASTER FUEL TRIP.
    • OIL
    • PA FANS
    • COAL MILL (A TO K)
    • SADC & APRDS
    • SOOT BLOWING CONTROL.
    • HP BY PASS
    • TOTAL CONTROLLER-27(12 PAIR,3 SINGLE)
  • 20. DDCMIS CONTROLLER GOUPING DETAILS-TURBINE(500 MW)
    • TUBINE PROTECTION A & B
    • AUTO TURBINE TESTER
    • ELECTRO HYDROLUIC TURBINE CONTRL
    • TURBINE STRESS CONTROLLER
    • LPBYPASS
    • GENERATOR
    • ATRS
    • TURBINE DRIVEN BFP
    • TOTAL CONTROLLER-28(14 PAIR)
  • 21. DDCMIS CONTROLLER GROUPING DETAILS-STATION (500MW)
    • ALL AUTO CONTROL SYSTEM(CLCS)
    • INTERLOCK & PROTECTION(OLCS)
    • ELECTRICAL BREAKERS
    • TOTAL CONTOLLERS –44 (22 PAIRS)
  • 22. DDCMIS - PERFORMANCE CALCULATION
    • BOILER EFFICIANCY
    • STEAM TURBINE
    • HP/IP/LP TUBINE
    • AIR PREHEATER
    • FEED WATER HEATERS
    • DEAERATOR
    • CONDENSER
    • UNIT HEAT RATE
  • 23. FLUE GAS ANALYSERS
    • WE MEASURE OXYGEN,CARBON MONO OXIDE IN FLUE GASES FOR PROPER & OPTIMISATION OF COMBUSTION OF FUELS IN BOILER.
    • WE MEASURE SULPHER DI OXIDE, NITROGEN OXIDES,DUST DENSITY IN FLUE GASES TO MINIMISE THE ENVIROMENTAL EFFECTS.
  • 24. STEAM & WATER ANALYSER
    • CONDUCTIVITY , pH , SILICA , DISOLVED OXYGEN ETC ARE MEASURED
    • TO ENSURE QUALTY OF D M WATER TO BOILER
    • TO PREVENT COROSSION
    • TO REMOVE IMPURITIES TO PREVENT SCALE DEPOSIT IN THE BOILER TUBE
    • TO PREVENT SILICA DEPOSIT ON THE BLADES OF TUBINE
  • 25. MEASUREMENT
    • TEMPRETURE
    • FLOW
    • PRESSURE
    • LEVEL
  • 26. AIM
    • DO IT RIGHT
    • FIRST TIME
  • 27. Thanks