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ENERGY CONSERVATION IN SR - A CASE STUDY
SOUTHERN REGIONAL LOAD DESPATCH CENTRE, BANGALORE POWER GRID CORPORATION OF INDIA LIMITED ENERGY CONSERVATION IN SR A CASE STUDY V.K.AGRAWAL K.RAMAKRISHNA P.BHASKARA RAO V.BALAJI AGM DGM DGM CM
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PRESENTATION OVERVIEW
SOUTHERN REGIONAL GRID – AN OVERVIEW TYPICAL ISSUES IN THE PAST PRESENT CONDITIONS & CARDINAL EVENTS TRANSMISSION NETWORK AND LOSS ANALYSIS ACTION PLAN FOR LOSS REDUCTION METERING AND ACCOUNTING PHILOSOPHY … 400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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THANK YOU
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SOUTHERN REGIONAL GRID AN OVERVIEW
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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REGIONAL GRIDS INSTALLED CAPACITY TOTAL 115,344 MW
NORTHERN :- 31,307 MW EASTERN :- 16,140 MW SOUTHERN :- 32,779 MW WESTERN :- 32,761 MW NORTH-EASTERN :- 2,357 MW TOTAL ,344 MW NORTHERN REGION NORTH-EASTERN REGION EASTERN REGION WESTERNREGION SOUTHERN REGION
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SOUTHERN REGION WESTERNREGION EASTERN REGION NORTHERN REGION NORTH-EASTERN REGION ‘ ELECTRICAL’ REGIONS 1 2 3 TALA PROJECT-LARGE CENTRAL GRID ARUNACHAL TO GUJARAT ON SAME FREQ SAME FREQUENCY FROM GUJARAT TO ARUNACHAL PRADESH WITH EFFECT FROM MARCH 2003 ABOUT 2800 KMS! APART
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‘ELECTRICAL’ REGIONS NORTHERN REGION 1 NORTH-EASTERN REGION EASTERN REGION WESTERNREGION TALA PROJECT-LARGE CENTRAL GRID ARUNACHAL TO GUJARAT ON SAME FREQ 2 SOUTHERN REGION WITH THE COMMISSIONING OF THE TALA PROJECT CONNECTING THE EASTERN AND NORTHERN GRIDS, INDIA WILL HAVE ONLY TWO GRIDS
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SOUTHERN REGION – GEOGRAPHY
ANDHRA PRADESH TAMIL NADU KARNATAKA KERALA POPULATION : CRORES ( 22% OF INDIA) AREA :- 651 (‘000 SQ KM)(19% OF INDIA) INSTALLED CAPACITY:- 32,779 MW(28.2%) WEATHER :- South-west monsoon North-east monsoon SEA COAST :- AROUND 4000 KM TALA PROJECT-LARGE CENTRAL GRID ARUNACHAL TO GUJARAT ON SAME FREQ
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SR STATES – GEOGRAPHY ALL INDIA KARNATAKA ANDHRA PRADESH KERALA
POPULATION :- 5.3 CRORES AREA :- 192 (‘000 SQ KM) NO OF CONSUMERS :- 105 LAKHS PER CAPITA CONS. :- 642 UNITS MAIN AGRICULTURE CROP :- COFFEE & RAGI CLIMATIC CONDITION :- HOT AND HOT & HUMID ANDHRA PRADESH POPULATION :- 7.6 CRORES AREA :- 275 (‘000 SQ KM) NO OF CONSUMERS :- 162 LAKHS PER CAPITA CONS. :- 719 UNITS MAIN AGRICULTURE CROP :- RICE CLIMATIC CONDITION :- HOT AND HOT & HUMID KERALA POPULATION :- 3.2 CRORES AREA :- 39 (‘000 SQ KM) NO OF CONSUMERS :- 61 LAKHS PER CAPITA CONS. :- 386 UNITS MAIN AGRICULTURE CROP :- COCONUT & SPICES CLIMATIC CONDITION :- HUMID ALL INDIA TAMIL NADU POPULATION :- 6.2 CRORES AREA :- 130 (‘000 SQ KM) NO OF CONSUMERS :- 152 LAKHS PER CAPITA CONS. :- 866 UNITS MAIN AGRICULTURE CROP :- SUGAR CANE & OIL SEEDS CLIMATIC CONDITION :- HOT AND HOT & HUMID TALA PROJECT-LARGE CENTRAL GRID ARUNACHAL TO GUJARAT ON SAME FREQ
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INSTALLED CAPACITY IN SR
AGENCY HYDRO THERMAL GAS/DIESEL WIND/OTHERS NUCLEAR TOTAL ANDHRA PRADESH 3586 2963 272 2 --- 6823 KARNATAKA 3332 1470 128 5 4934 KERALA 1831 234 2067 TAMILNADU 1987 2970 423 19 5399 PONDICHERRY 33 CENTRAL SECTOR 8090 360 830 9280 IPP 278 387 2506 1071 4243 11014 (34%) 15880 (48%) 3956 (12%) 1099 (3%) 830 (3%) 32779 (100%) The above capacity does not includes --- About 1344 MW of Wind Mill Capacity in Tamil Nadu. Micro and Captive plants in different states.
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SOURCE-WISE INSTALLED CAPACITY OF SR
IN MW NUCLEAR OTHERS WIND HYDRO GAS THERMAL 32,779 MW
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GENERATING UNITS IN SOUTHERN REGION
UNIT CAPACITY AP KAR KER TN CGS TOTAL THERMAL (500 MW) 2 8 10 THERMAL ( MW) 7 13 15 45 GAS/THERMAL ( MW) 9 3 24 HYDRO (>50 MW) 27 29 16 87 48 38 19 165 A.P TYPICAL GENERATOR SPREAD IN SR KAR - HYDRO - THERMAL KER TN GENERATORS ABOVE 1000 MW - GAS / NAPTHA GENERATORS 500 – 1000 MW - NUCLEAR GENERATORS BELOW 500 MW
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TYPICAL LOAD SPREAD IN SR
LOAD MW LOAD MW
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400KV SUB-STATIONS IN SR 8 4 2 14 5 9 6 20 33 AP KAR KER TN
POWERGRID STATE OTHERS TOTAL AP 8 4 2 14 KAR 5 9 KER TN 6 20 33 KALPAKKA RAMAGUNDAM 1 GAZUWAKA SIMHADRI P HYDERABAD KHAMMAM P P P MAMIDIPALLY P VIJAYAWADA RAICHUR P NAGARJUNASAGAR MUNIRABAD SRI SAILAM P KURNOOL P GOOTY CUDDAPAH 60 DAVANAGERE P NELLORE HIRIYUR NELAMANGALA TALAGUPPA BANGALORE P KOLAR HOODY MADRAS P -- OF POWERGRID HOSUR -- OF NTPC NEYVELI TPS I (EXP) 63 SALEM -- OF ANDHRA PRADESH P NEYVELI -- OF KARNATAKA UDUMALPET P TRICHY -- OF NLC TRICHUR P P P MADURAI TRIVENDRUM
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TRANSMISSION IN SOUTHERN INDIA
VOLTAGE LEVEL AP KAR KER TN CGS TOTAL 400 KV 2042 1614 9850 13506 220/230 KV 10050 7590 2650 6270 366 26926 132/110 KV 12360 6060 3720 10220 32360 24452 15264 6370 16490 10216 71404 ABOUT 2800 CKM OF 400 KV LINES ADDED IN THE PAST 2 YEARS
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MONSOONS SOUTH WEST MONSOON NORTH EAST MONSOON
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TYPICAL LOAD CURVE OF SR
SUMMER EVENING PEAK WINTER MONSOON WEATHER RESERVOIR CONSUMPTION
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TYPICAL ISSUES IN THE PAST
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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GRID OPERATION – TYPICAL ISSUES IN PAST
LOW / HIGH FREQUENCY PROBLEMS FREQUENCY EXCURSES TO LOW/HIGH VALUES LOW / HIGH VOLTAGE OPERATION CRITICALLY LOW VOLTAGES AT LOAD CENTRES SUBSTANTIALLY HIGH VOLTAGES AT FAR ENDS SYSTEM BROWNOUTS / BLACK OUTS SEPERATION OF SYSTEMS / LOSS OF LOAD ECONOMIC IN-STABILITY / INCREASED ELECTRICAL LOSSES UNRELIABLE / INEFFICIENT OPERATION OF EQUIPMENT ...THE END RESULT :
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GRID OPERATION: A TIGHT ROPE WALK
POWER SWINGS INSTABILITY INCREASED LOSSES BLACK-OUT IN-ECONOMIC OPERATION VOLTAGE COLLAPSE
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PRESENT CONDITIONS & CARDINAL EVENTS
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES
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FREQUENCY DURATION CURVE 2002-03, 2003-04 & 2004-05
<49.0 49.0 & <50.5 50.5 & Above Max Min Avg FVI 0.13 98.70 0.17 50.90 48.62 49.85 0.83 2.30 97.30 0.44 51.17 48.18 49.69 1.95 49.48 48.51 2.01 51.37 47.69 48.95 18.86 FVI
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FREQUENCY SPECTRUM OF SOUTHERN REGION FOR PAST FIVE YEARS
FREQUENCY (Hz) % OF TIME WHEN FREQUECY WAS BETWEEN AVERAG FVI MAXIMUM MINIMUM AVERAGE < 48.5 HZ 48.5 TO 49.0 HZ 49.0 TO 49.5 HZ 49.5 TO 50.0 HZ 50.0 TO 50.5 HZ > 50.5 HZ 00 – 01 51.56 47.76 48.67 53.79 17.68 13.63 12.26 2.64 --- 01 – 02 51.44 47.72 48.52 68.08 9.96 6.48 11.39 4.10 29.71 02 – 03 51.37 47.69 48.95 39.31 10.17 14.48 23.93 10.10 2.01 18.86 03 – 04 51.17 48.18 49.69 0.10 2.20 22.03 63.00 12.23 0.44 1.95 50.90 48.62 49.85 0.00 0.13 8.49 63.81 27.40 0.17 0.83
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SHARP PEAK DEEP VALLEY DEEP VALLEY
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MAJOR AND MINOR DISTURBANCES IN SR SINCE 1994
NO DISTURBANCES DESPITE LOSING ENTIRE SUPER GENERATING PLANTS LIKE RAMAGUNDAM,VIJAYAWADA,KOTHAGUDEM, NORTH CHENNAI, SHARAVATHY ,NAGJHARI ETC
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GRID PRESENT STATUS -- CARDINAL EVENTS
AVAILABILITY BASED TARIFF UNIFIED LOAD DESPATCH SCHEME GENERATION CAPCITY ADDITION INTERREGIONAL AC / HVDC LINKS OPERATIONAL EXCELLENCE ...THESE EVENTS CHANGED THE FACE OF GRID OPERATION
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FREQUENCY CURVE FOR 9th SEPTEMBER 2004
FVI = 0.04 Avg Freq = 49.99Hz 10 * ∑ (F – 50) 2 FVI = 24 * 60
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RESERVOIR LEVEL - COMPARISON
LEVEL IN MTS LEVEL 31-Jul-04 31-Jul-05 JALAPUT 831.58 819.24 LINGANMAKKI 544.22 548.85 SUPA 528.01 542.40 IDUKKI 717.66 720.08 KAKKI 963.83 968.88 NILGIRIS TOTAL ENERGY 31-Jul-04 31-Jul-05 RISE IN MU % RISE 275 47 228 82 1931 2930 999 51 749 1482 733 98 1066 1216 150 14 416 555 139 33 1110 1319 209 19 5546 7549 2003 36
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