The document discusses instrumentation and control systems used in thermal power plants. It describes the objectives of instrumentation and control which include safe and efficient plant operation. It provides an overview of the Distributed Digital Control and Management Information System (DDCMIS) and its components, including the burner management system, turbine control system, and generator instruments. It explains the various functions, measurements, controls, and benefits provided by the DDCMIS.

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

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