Load dispatch center

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  • 1. Dharmesh Sisara & Rakesh Sisara
  • 2. LOAD DISPATCH CENTER
  • 3.  WHAT IS LOAD DISPATCH CENTER? THE LOAD CENTER IS THE CENTER WHICH PERFORMS DISPATCH AND CONTROL FUNCTIONS TO ENSURE CONTINUTIY AND QUALITY OF POWER SUPPLY TO THE CONSUMERS. ALL THE MODERN LOAD DISPATCH CENTER USE THE SCADA SYSTEM (SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM) FOR MONITORING AND COLLECTING THE SYSTEM DATA. THE FUNCTIONS OF THE LOAD DISAPTCH CENTERS INCLUDE THE SUPERVISORY OF THE SYSTEM ELEMENTS LIKE GENERAOTR, TRANSFORMER, TRANSMISSION LINE ETC. OF THE INTERCONNECTED SYSTEM. THE LOAD DISPATCH CENTER ALSO PERFORMS THE SECURITY AND ECONOMIC OPERATION OF THE POWER SYSTEM. IT IS ALSO USED TO RESTORE THE NORMAL FUNCTIONIG OF THE POWER LINE AS EARLY AS POSSIBLE AFTER THE OCCURRENCE OF THE FAULT.
  • 4. GENERALIZED BLOCK DIAGRAM OF LOAD DISPATCH CENTER:
  • 5.  FUNCTION OF LOAD DISPATCH CENTER: 1. DATA PROCESSING AND SYSTEM STUDIES. 2. LOAD FORECASTING FOR A WORKING DAY & HOLIDAY AND ANALYSIS OF SYSTEM BEHAVIOUR. 3. CHECKING STATION WISE OUTAGE POSITION EVERY MORNING AT 6 A.M. TO ASSESS THE GENERATION AVAILABITIY. 4. QUALITY MAINTAINANCE OF SUPPLY TO THE CONSUMER BY WAY OF IMPROVED VOLTAGE REGULATION. 5. LOAD SCHEDULING AND ECONOMIC OPERATION. 6. INTEGRATION WITH REGIONAL LOAD DISPATCH CENTERS. 7. CO-ORDINATION WITH NEIGHBOR GRIDS. 8. MAINTAINANCE OF GRID DISCIPLINE. 9. SYSTEM SECURITY, SCADA MANAGEMENT AND COMMUNICATION. 10. CONSUMER INTERACTION AND PUBLIC RELATION.
  • 6. 11. RECORDING FREQUENCY CONTINIOSLY. 12. MONITORING OF SETTING OF UNDER FREQUENCY RELAYS AND THEIR OPERATION. 13. RECORDING TIE FLOWS AT EVERY HALF HOUR. 14. ASSESING SURPLUS POWER IN REGION AND MAKING IT AVAILABLE TO OTHER AREAS. 15. MONITORING OF STATION WISE GENERATION, STATION, WISE PEAK DEMAND. 16. RECORDING OF TRIPPING OF TRANSMISSION LINES.
  • 7.  EQUIPMENT USED IN LOAD DISPATCH CENTER: 1. COMPUTER SYSTEM 2. CONTROL DESK 3. ANNUNCIATION PANELS 4. MIMIC DIAGRAM 5. COMMUNICATION 6. TELEMETRY OTHER EQUIPMENT USED IN THE LDC ARE: I. DIESEL GENERATOR SET II. HEATING, VENTILATION AND AIR-CONDITIONING SYSTEM III. DC BATTERY ROOM IV. HARMONIC FREE AC SUPPLY V. UPS
  • 8. THANK YOU