1 delegates from japan. 2 india political map population :- 103 crores area :- 3,419 (‘000 sq km)...
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11
DELEGATES FROM JAPAN
2
INDIA POLITICAL MAPPOPULATION :- 103 CRORES
AREA :- 3,419 (‘000 SQ KM)
STATES :- 29
UT :- 6
BIGGEST CITY :- MUMBAI
WE ARE HEREGARDEN CITY
SILICON VALLY
3
SOUTHERN REGION
WESTERNREGION
EASTERN REGION
NORTHERN REGION
NORTH-EASTERN REGION
INSTALLED CAPACITY
NORTHERN :- 31,230 MW
EASTERN :- 17,697 MW
SOUTHERN :- 31,931 MW
WESTERN :- 32,354 MW
NORTH-EASTERN :- 2,357 MW
TOTAL 115,569 MW
4
SOUTHERN REGION
WESTERNREGION
EASTERN REGION
NORTHERN REGION
NORTH-EASTERN REGION
‘ ELECTRICAL’
REGIONS1
2
3
SAME FREQUENCY FROM GUJARAT TO ARUNACHAL PRADESH WITH EFFECT FROM MARCH 2003
ABOUT 2800 KMS! APART
5
SOUTHERN REGION
WESTERNREGION
EASTERN REGION
NORTHERN REGION
NORTH-EASTERN REGION
‘ELECTRICAL’
REGIONS
1
2
WITH THE COMMISSIONING OF THE TALA PROJECT CONNECTING THE EASTERN AND NORTHERN GRIDS, INDIA WILL HAVE ONLY TWO GRIDS
6
SOUTHERN REGION – GEOGRAPHY
ANDHRA PRADESH
TAMIL NADU
KARNATAKA
KE
RA
LA
POPULATION :- 22.5 CRORES ( 22% OF INDIA)
AREA :- 651 (‘000 SQ KM)(19% OF INDIA)
INSTALLED CAPACITY:- 31,931 MW(27.6%)
WEATHER :- South-west monsoon
North-east monsoon
SEA COAST :- AROUND 4000 KM
7
ANDHRA PRADESH
POPULATION :- 7.6 CRORES
AREA :- 275 (‘000 SQ KM)
NO OF CONSUMERS :- 162 LAKHS
PER CAPITA CONS. :- 560 UNITS
MAIN AGRICULTURE CROP :- RICE
CLIMATIC CONDITION :- HOT AND HOT & HUMID
SR STATES – GEOGRAPHYKARNATAKA
POPULATION :- 5.3 CRORES
AREA :- 192 (‘000 SQ KM)
NO OF CONSUMERS :- 105 LAKHS
PER CAPITA CONS. :- 389 UNITS
MAIN AGRICULTURE CROP :- COFFEE & RAGI
CLIMATIC CONDITION :- HOT AND HOT & HUMID
KERALA
POPULATION :- 3.2 CRORES
AREA :- 39 (‘000 SQ KM)
NO OF CONSUMERS :- 61 LAKHS
PER CAPITA CONS. :- 300 UNITS
MAIN AGRICULTURE CROP :- COCONUT & SPICES
CLIMATIC CONDITION :- HUMID
TAMIL NADU
POPULATION :- 6.2 CRORES
AREA :- 130 (‘000 SQ KM)
NO OF CONSUMERS :- 152 LAKHS
PER CAPITA CONS. :- 586 UNITS
MAIN AGRICULTURE CROP :- SUGAR CANE & OIL SEEDS
CLIMATIC CONDITION :- HOT AND HOT & HUMID
PONDICHERRY
POPULATION :- 9.7 LAKHS
AREA :- 492 SQ KM
PER CAPITA CONS. :- 165 UNITS
CLIMATIC CONDITION :- HOT & HUMID
8
SR STATES – POWER SYSTEM STATISTICSANDHRA PRADESH
INSTALLED CAPACITY – 9531 MW
MAX DEMAND MET – 7441 MW
DAILY CONSUMPTION MAX – 166 MU
DAILY CONSUMPTION AVG – 130 MU
CONSUMER PROFILE –
DOM INDU AGRI COMML OTHERS
22% 29% 34% 5% 10% .
KARNATAKAINSTALLED CAPACITY – 5802 MW
MAX DEMAND MET – 5445 MW
DAILY CONSUMPTION MAX – 107 MU
DAILY CONSUMPTION AVG – 84 MU
CONSUMER PROFILE –
DOM INDU AGRI COMML OTHERS
37% 26% 33% 3% 1% .
KERALAINSTALLED CAPACITY – 2617 MW
MAX DEMAND MET – 2426 MW
DAILY CONSUMPTION MAX – 39 MU
DAILY CONSUMPTION AVG – 34 MU
CONSUMER PROFILE –
DOM INDU AGRI COMML
76% 2% 6% 16%.
TAMIL NADUINSTALLED CAPACITY – 7074 MW
MAX DEMAND MET – 7228 MW
DAILY CONSUMPTION MAX – 147 MU
DAILY CONSUMPTION AVG – 126 MU
CONSUMER PROFILE –
DOM INDU AGRI COMML OTHERS
21% 33% 27% 9% 10% .
9
GROWTH OF INSTALLED CAPACITY OF SR
1947
5
1983
0
2030
4
2129
8
2213
3
2298
3
2417
3 2616
3 2850
1
2952
6
10000
12000
14000
16000
18000
20000
22000
24000
26000
28000
30000
1994-95 1995-96 1996-97 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04
YEARS --->
IN MW
10
INSTALLED CAPACITY IN SR
STATES HYDRO THERMAL NUCLEARDIESEL/
GAS WIND OTHERS TOTAL %
AP 3586 2993 272 2 6853 21%
KAR 3166 1470 128 5 4769 15%
KER 1808 235 2043 6%
TN 1996 3570 423 19 6008 19%
C.S 6990 830 360 8180 26%
IPP 229 794 0 2432 245 377 4078 13%
TOTAL 10785 15817 830 3851 271 377 31931
% 34% 50% 3% 12% 1% 1%
NOTE:- --- TAMILNADU HAS ABOUT 1344 MW OF WINDMILL POWER WHICH IS NOT INCLUDED IN THE INSTALLED CAPACITY.
--- LIKEWISE MICRO AND CAPTIVE CAPACITIES ARE NOT INCLUDED
11
15817 (50%)
10785 (34%)377 (1%)
830 (3%)271 (0.8%)
3851 (12%)
HYDRO THERMAL GAS WIND NUCLEAR OTHERS
SOURCE-WISE INSTALLED CAPACITY OF SR IN MW
31,931 MW
HYDRO
THERMAL
WIND
NUCLEAR OTHERS
GAS
12
4769 (15%)
6853 (21%)4078 (13%)
8180 (26%)
6008 (18.8%)
2043 (6%)
AP KAR KER TN CS IPP
AGENCY-WISE INSTALLED CAPACITY OF SRIN MW31,931 MW
ANDHRA PRADESH
KARNATAKA
TAMIL NADU
CENTRAL SECTOR
IPP
KERALA
13
13000
14000
15000
16000
17000
18000
19000
20000
21000
22000
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
TIME IN HRS --->
DE
MA
ND
IN
MW
---
>
MONSOON SUMMER WINTER
TYPICAL LOAD CURVE OF SR
WINTER
MONSOON
SUMMER
EVENING PEAK
WEATHER
RESERVOIR CONSUMPTION SCROLL DEMAND
14
6%
23%4%
37%
30%
Domestic Commercial Agriculture Industry Others
LOAD COMPOSITION IN SOUTHERN GRID Domestic
IndustryCommercial
Agriculture
Others
15
LOAD 500-1200 MW
LOAD 200-500 MW
TYPICAL
LOAD
SPREAD
IN SR
16
SR GRID - HIGHLIGHTS
• WIDE SPREAD TRANSMISSION NETWORK
• HIGHEST CAPACITY HVDC LINK IN COUNTRY
• GENERATING UNITS OF VARIED TYPE & CAPACITY
• 32 Nos. of 400 KV SUB-STATIONS
• 17600 MVA TRANSFORMATION CAPACITY
• INTER-REGIONAL LINKS WITH ALL NEIGHBOURING
REGIONS
17
GRID OPERATION IN THE PAST
• LOW FREQUENCY PROBLEMS– FREQUENCY AT 48 HZ AND BELOW FOR MOST TIME
• LOW VOLTAGE OPERATION– VOLTAGE AT BANGALORE DIPPED TO AS LOW AS
300 Kv!!!!• FREQUENT GRID DISTURBANCES
– LOADS FREQUENTLY CUT OFF DUE TO RELAY OPERATION
• INCREASED ELECTRICAL LOSSES– INEFFICIENT OPERATION OF ELECTRIC
EQUIPMENTS
18
GRID OPERATION PRESENT
STABILISED SYSTEM FREQUENCY
IMPROVED VOLTAGES
MERIT ORDER OPERATION
INTER REGIONAL EXCHANGES
IMPROVED GRID SECURITY
JAN - 02 OCT - 04
19
LANDMARKS
• UNIFIED LOAD DESPATCH SCHEME
• AVAILABILITY BASED TARIFF
• TALCHER-KOLAR HVDC LINK
• OPERATIONAL EXCELLENCE
• SPECIFIC ACTIONS BY SRLDC
• FINANCIAL DISCIPLINE
SCHD DRWL
20
EXPANSION
• GENERATION ADDITION & SYSTEM STRENGTHENING
• FUTURE PROJECTS
21
ISSUES OF IMPORTANCE
• HIGH VOLTAGE CONTROL DURING OFF-PEAK PERI
OD
• TALCHER-KOLAR SPECIAL PROTECTION SCHEME
• LOAD-GENERATION BALANCE
• INTRA-STATE ABT
3D FREQ NTPC HYDRO
22
23
MONSOONS
SOUTH WEST MONSOON NORTH EAST
MONSOON
KHAMMAM
VIJAYAWADANAGARJUNASAGAR
VISAKHAPATNAM
(POWERGRID)HYDERABAD
RAICHUR
GOOTY
HOODY
SALEM
UDUMALPET
TRICHUR
MADURAI
TRICHY
MADRAS
NEYVELI
CUDDAPAHDAVANAGERE
KAIGA
115
317
RSTPP
BHADRAVATI
130x216
4x2
182
151
181
173
302
308172
277
279
155
178x
2
PONDICHERY
BANGALORE
SIRSI
MUNIRABAD
PP
P
P
P
P
P
P
P
P
P
PP
P
P
N
KOLAR
PALLOM
KAYANKULAMEDAMON
TALCHER
JEYPORE
63
187
2x78
2x221
54
HOSUR
KADRA
KODASAALY
Nagjhari
1
120
60
MAPS
P
SSLMM
MMDP
THIRUVANATHAPURAM
ALMATHI
NELLORE
400 KV LINE PRESENTLY
OPERATED AT 220 KV
NELAMANGALA
KURNOOL
GAZUWAKA(AP)
SIMHADRI NTPC
HIRIYUR
189
195
267x
2
258
242
175
179
127
130x
2
221x2
146x252x2
197x2
301x2
8x4
15x2
300
28
330
ABOUT 12000 CKM
400KV TRANSMISSION
TALGUPPA
GRID MAP
TYPICAL FLOWS ARE FROM NORTH TO SOUTH
GRID FOCAL POINT SHIFTED TO KOLAR AFTER COMMISSIONING OF HVDC
QUANTUM CHANGES IN FLOW PATTERN LIKELY AFTER COMMISSIONING OF KOODANKULAM 2000 MW
KOODANKULAM
THIRNELVALI
25
TRANSMISSION IN SOUTHERN TRANSMISSION IN SOUTHERN INDIAINDIA
ABOUT 2800 CKM OF 400 KV LINES ADDED IN THE PAST 2 YEARS
VOLTAGE LEVEL AP KAR KER TN CGS TOTAL
400 KV 2042 1614 8462 12118
220/230 KV 10050 7590 2650 6270 366 26926
132/110 KV 12360 6060 3720 10220 32360
TOTAL 24452 15264 6370 16490 8828 71404
26
Kolar
Chintamani
Cudappah
HoodyHosur
Salem
Udumalpet
Madras B’lore
+/- 500 KV DC line 1370 KM
ElectrodeStation
ElectrodeStation
TALCHER
400kv System
220kv system
KOLAR
TALCHER KOLAR TALCHER KOLAR SCHEMATICSCHEMATIC
GENERATING UNITS IN SOUTHERN REGION
A.PKAR
TNKERGENERATORS ABOVE 1000 MW
GENERATORS 500 – 1000 MW
GENERATORS BELOW 500 MW
TYPICAL
GENERATOR
SPREAD
IN SR
UNIT CAPACITY AP KAR KER TN CGS TOTAL
THERMAL (500 MW) 2 7 9
THERMAL
(200-250 MW)10 7 13 15 45
GAS/THERMAL
(100-150 MW)9 2 3 10 24
HYDRO
(>50 MW)27 27 16 15 85
TOTAL 48 36 19 38 163
- HYDRO
- THERMAL
- GAS / NAPTHA
- NUCLEAR
KHAMMAM
VIJAYAWADANAGARJUNASAGAR
GAZUWAKA
HYDERABAD
RAICHUR
GOOTY
HOODY
SALEM
UDUMALPET
TRICHUR
MADURAI
TRICHY
MADRAS
NEYVELI
CUDDAPAH
DAVANAGERE
RAMAGUNDAM
BANGALORE
MUNIRABAD
PP
P
P
P
P
P
P
P
P
P
PP
P
P
KOLAR
63
HOSUR
1
60
P
NELLORE
NELAMANGALA
KURNOOL
KALPAKKA
SIMHADRI
HIRIYUR
TALAGUPPA
MAMIDIPALLY
SRI SAILAM
-- OF NTPC
-- OF ANDHRA PRADESH
-- OF KARNATAKA
-- OF NLC
-- OF POWERGRID
400KV SUB-STATIONS IN SR
NEYVELI TPS I (EXP)
POWERGRID STATE OTHERS TOTAL
AP 8 4 2 14
KAR 4 5 9
KER 1 1
TN 6 2 8
TOTAL 19 9 4 32
30
ICT SUMMARY IN SOUTHERN ICT SUMMARY IN SOUTHERN INDIAINDIA
VOLTAGE RATIO AP KAR KER TN CGS TOTAL
400/230 or 400/220 KV 7 7 2 5 29 50
400/132 or 400/110 KV --- --- --- 3 2 5
TOTAL 7 7 2 8 31 55
31POWERGRID SRLDC
A.P
KAR
T.N
KER
MAH
ORISSA
RAMAGUNDAM
NEYVELI
MAPS
GOA
PONDICHERRY
CHANDRAPUR
JEYPORE
GAZUWAKA
KOLHAPUR
BELGAUM
U.SILERUL.SILERU
BALIMELA
BARSUR
CSEB
AMBEWADI
INTER REGIONAL LINKSINTER REGIONAL LINKS
HVDC BI POLEHVDC B2B STATION
CENTRAL GEN.STATION
220 kV LINE
400 kV LINE
110 kV HVDC LINE
KOLAR
TALCHAR
KAIGA
Inter Regional Links
Present IR CapacityPresent IR Capacity= 9,000 MW= 9,000 MW
700 MW700 MW
1200MW1200MW
2000MW2000MW
700 MW700 MW
900 MW900 MW30,500 MW
16,000
32,700 MW
30,500 MW
2300
1850 MW1850 MW
1650 MW1650 MW
33
13450 MW
1000 MW6450 MW
4600 MW
1300 MW3200 MW
30,000 MW OF INTER-REGIONAL POWER BY 2012
EASTERN REGION
SOUTHERN REGION
WESTERNREGION
NORTHERN REGION
NORTH-EASTERN REGION
INTER-REGIONAL TRANSFER BY INTER-REGIONAL TRANSFER BY END OF 11END OF 11thth PLAN (2012) PLAN (2012)
34
STABILISED SYSTEM FREQUENCY
• TYPICAL FREQUENCY CURVE
• SCATTER DIAGRAM
• HISTOGRAM OF FREQUENCY
• FREQUENCY DURATION CURVE
• Df/dT CURVE
• RECORD FVI OF 0.04
35
47.50
48.00
48.50
49.00
49.50
50.00
50.50
51.00
25 26 27 28 29 30 31
DAYS ----->
FR
EQ
UE
NC
Y IN
HZ
---
->FREQUENCY PROFILE
2002, 2003 & 2004
36
FREQUENCY DURATION CURVE AUG TO OCT 04, 03 & 02
47.50
48.00
48.50
49.00
49.50
50.00
50.50
51.00
1 1117 2233 3349 4465 5581 6697 7813 8929 10045 11161 12277 13393 14509 15625 16741 17857 18973 20089 21205
% OF TIME --->
FR
EQ
UE
NC
Y IN
HZ
---
>
0 10 20 30 40 50 60 70 80 90 100
2004
2003
<49.049.0 & <49.5
49.5 & <50.5
50.5 & Above
Max Min Avg FVI St. Dev
2004 0.03 1.46 98.28 0.23 50.82 48.62 49.95 0.31 0.12
2003 0.17 8.32 90.66 0.85 50.85 48.60 49.81 0.95 0.18
2002 73.62 12.45 12.84 1.09 51.08 47.69 48.63 23.59 0.44
2002
37
320
330
340
350
360
370
380
390
400
410
42000
:05
01:0
5
02:0
5
03:0
5
04:0
5
05:0
5
06:0
5
07:0
5
08:0
5
09:0
5
10:0
5
11:0
5
12:0
5
13:0
5
14:0
5
15:0
5
16:0
5
17:0
5
18:0
5
19:0
5
20:0
5
21:0
5
22:0
5
23:0
5
TIME IN HRS --->
VO
LT
AG
E IN
KV
---
>
REALITY BITE:
FARMERS IN KARNATAKA ARE HAPPY WITH FEWER HOURS OF QUALITY POWER!!.
EFFICIENCY OF PUMPS AT TG HALLI WATER WORKS IMPROVED!
COMPARISION OF BANGALORE VOLTAGE-TYPICAL DAY
BETTER VOLTAGE PROFILE MEANS LESS ELECTRICAL LOSSES
38
WATER SUPPLY TO BANGALORE
LOW VOLTAGE PROBLEMS AROUND BANGALORE HAMPERED WATER SUPPLY EARLIER
WITH BETTER VOLTAGE NOW, PUMPING EFFICIENCY HAS IMPROVED
400 KV STATION AT MYSORE BEING COMMISSIONED ON WAR FOOTING TO FURTHER FORTIFY THIS PART OF THE GRID
PUMPING LOSSES REDUCED
ENORMOUS SAVINGS TO THE STATE
MOTOR BURNING AND MAINTENANCE COSTS ALSO CAME DOWN DRASTICALLY
39
VARIABLE COST(Ps) OF POWER STATION IN SR AS ON JUNE 2004
0
2000
4000
6000
8000
10000
12000
14000
16000
18000P
ON
DY
PC
L (3
2.5
MW
)(19
.61
PS
)
NE
YV
ELI
-II S
TG
1 *
*(63
0 M
W)(
67.9
9 P
S)
KO
VIL
KA
LAP
PA
L *(
105
MW
)(68
PS
)
JEG
UR
UP
AD
U (
GA
S)(
216
MW
)(82
PS
)
SP
EC
TR
UM
(G
AS
)(20
8 M
W)(
83 P
S)
VIJ
JES
WA
RA
M -
I(10
0 M
W)(
84 P
S)
VIJ
JES
WA
RA
M -
II(17
2.5
MW
)(86
PS
)
B S
E S
(A
P)(
GA
S)(
140
MW
)(87
PS
)
RE
INS
CA
LCIN
ING
LT
D.(
41 M
W)(
90 P
S)
RA
MA
GU
ND
AM
(210
0 M
W)(
90 P
S)
LAN
CO
(350
MW
)(91
.48
PS
)
NE
YV
ELI
-II S
TG
-II *
*(84
0 M
W)(
94.6
1 P
S)
SIM
HA
DR
I(10
00 M
W)(
96 P
S)
RA
MA
GU
ND
AM
-B(6
2.5
MW
)(96
PS
)
VIJ
AY
AW
AD
A T
.P.S
.-1&
2(10
50 M
W)(
101
PS
)
VIJ
AY
AW
AD
A T
.P.S
.-3(
210
MW
)(10
1 P
S)
KO
TH
AG
UD
EM
(B)(
210
MW
)(10
8 P
S)
RA
ICH
UR
.T.P
S. *
*(12
60 M
W)(
110
PS
)
KO
TH
AG
UD
EM
(A)(
240
MW
)(11
0 P
S)
KO
TH
AG
UD
EM
(C)(
220
MW
)(12
3.1
PS
)
KO
TH
AG
UD
EM
(D)(
500
MW
)(12
4 P
S)
RA
YA
LAS
EE
MA
TP
P(4
20 M
W)(
126
PS
)
NO
RT
H M
AD
RA
S.T
.P.S
(630
MW
)(13
0.98
PS
)
TU
TU
CO
RIN
.T.P
.S(1
050
MW
)(13
3.5
PS
)
ME
TT
UR
.T.P
.S(8
40 M
W)(
150
PS
)
V S
P *
(120
MW
)(16
9.11
PS
)
ST
-CM
S(2
50 M
W)(
171
PS
)
NE
YV
ELI
-I(6
00 M
W)(
185.
86 P
S)
EN
NO
RE
.T.P
.S(4
50 M
W)(
190.
2 P
S)
L V
S(3
7.8
MW
)(20
0 P
S)
YE
LEH
AN
KA
DE
ISE
L(12
7.92
MW
)(20
3.36
PS
)
NA
VB
HA
RA
T(3
5 M
W)(
205
PS
)
BR
AH
MA
PU
AM
D P
P(1
06.5
MW
)(21
4 P
S)
NE
LLO
RE
(30
MW
)(22
5 P
S)
B S
E S
(K
ER
ALA
)(16
5.5
MW
)(22
5 P
S)
TH
AN
NE
ER
BA
VI(
235
MW
)(22
8 P
S)
JIN
DA
L(26
0 M
W)(
247
PS
)
BA
LAJI
(SA
MA
YA
NA
LLU
R)(
105
MW
)(24
7 P
S)
KO
ZH
IKO
DE
DP
P(1
28.8
MW
)(25
0 P
S)
GM
R V
AS
AV
I(19
6 M
W)(
254
PS
)
SA
MA
LPA
TT
Y IP
P(1
05 M
W)(
263
PS
)
TA
TA
DE
ISE
L(81
.3 M
W)(
280
PS
)
KA
YA
MK
ULA
M N
TP
C(3
50 M
W)(
290
PS
)
KA
SA
RG
OD
P C
L(2
1 M
W)(
300
PS
)
RA
YA
LAS
EE
MA
(37.
8 M
W)(
330
PS
)
PP
NA
LLU
R(3
30.5
MW
)(41
5 P
S)
BA
SIN
BR
IDG
E(1
20 M
W)(
468
PS
)
CU
MU
LA
TIV
E IN
ST
AL
LE
D C
AP
AC
ITY
IN M
W
0
50
100
150
200
250
300
350
400
450
VA
RIA
BL
E C
OS
T IN
Ps/
UN
IT
VARIABLE COST
CUMULATIVEINSTALLE
ABOUT 7000 MW OF CAPACITY IS BELOW 100 Ps
ABOUT14200 MW OF CAPACITY IS BELOW 200 Ps
ABOUT 16000 MW OF CAPACITY IS BELOW 300 Ps
CUM. INS. CAP.
40
41
MERIT ORDER : UNITS BOXED UP
POWER STATION STATE CAPACITY(MW) FUELVARIABLE
COST
TATA DIESELKARNATAK
A 79 DIESEL 308
RAYALSEEMA DGPP
KARNATAKA 27 DIESEL 360
YELEHANKA DIESEL
KARNATAKA 128 DIESEL 314
THANRBHAVIKARNATAK
A 220 NAPTHA 325
SUB-TOTAL 454
BRAHAMPURAM DPP KERALA 107 DIESEL 275
BSES KERALA 157 NAPTHA 308
KASARGODE PCL KERALA 22 NAPTHA 298
KAYAMKULAM KERALA 360 NAPTHA 322
SUB-TOTAL 646
BASIN BRIDGETAMIL NADU 120 NAPTHA 584
P.P.NALLURTAMIL NADU 330 NAPTHA 415
SUB-TOTAL 450
TOTAL 1550
42
Growth Of Inter Regional Energy Exchanges
73508230
9730
13000
22500
0
5000
10000
15000
20000
25000
1999-2000 2000-2001 2001-2002 2002-2003 2003-2004
Year
To
tal M
U D
uri
ng
Th
e Y
ear
IR Energy Exchanges
43
(+) IMPORT / (-) EXPORT
• INTER REGIONAL UI (WR):- +357 MU – 211 MU• INTER REGIONAL UI (ER):- +693 MU – 21 MU• AVG RATE OF IMPORT FROM WR IN PS/U
– 134 PS/U @WR– 247 PS/U @SR
• AVG RATE OF EXPORT TO WR IN PS/U– 163 PS/U @SR– 287 PS/U @WR
• AVG RATE OF IMPORT FROM ER IN PS/U– 145 PS/U @ ER– 212 PS/U @ SR
INTER – REGIONAL(01/01/03 TO 10/10/04)
44
MAJOR AND MINOR DISTURBANCES SINCE 1994
0
1
2
3
4
5
6
7
8
9
10N
UM
BE
R O
F D
IST
UR
BA
NC
ES
---
----
->
1994
-95
1995
-96
1996
-97
1997
-98
1998
-99
1999
-00
2000
-01
2001
-02
2002
-03
2003
-04
2004
-05
YEAR ->
MAJOR MINOR
NO DISTURBANCES DESPITE LOSING ENTIRE SUPER GENERATING PLANTS LIKE
RAMAGUNDAM,VIJAYAWADA,KOTHAGUDEM, NORTH CHENNAI, SHARAVATHY ETC
SPS
45
DEEP VALLEY
DEEP VALLEY
SHARP
PEAK
46
KADAMPARAI PUMP OPERATION
-300
-200
-100
0
100
200
300
400
5000:
001:
002:
003:
004:
005:
006:
007:
008:
009:
0010
:00
11:0
012
:00
13:0
014
:00
15:0
016
:00
17:0
018
:00
19:0
020
:00
21:0
022
:00
23:0
00:
00
TIME ---->
IN M
W --
-->
48.50
49.00
49.50
50.00
50.50
51.00
FREQ
UENC
Y IN
HZ
---->
GENERATOR MODE
PUMP PUMP
SAVINGS OF RS 40 LAKHS EVERY DAY
INVESTMENT OF 1600 CRORES SAVED
47
OPTIMAL RESERVOIR UTILISATIONIDUKKI IN KERALA
KERALA SAVED RS 50 CRORES BY EFFICIENT UTILISATION OF THE RESERVOIRS AT IDUKKI!
POWERGRIDs 400 KV MADURAI-TRIVANDRUM LINE WILL HELP KERALA
SAVE EVEN MORE ENERGY IN THE COMING
YEAR
PLANT OPERATORS AT IDUKKI THINK OF THE RESERVOIR LEVEL IN RUPEES RATHER
THAN IN FEET!!!
Rs. Rs.
Rs.
Rs.
Rs.
Rs.Rs.
Rs.
Rs.
Rs.
Rs.
Rs.
Rs.
Rs.
Rs.Rs.
48
FREQUENCY CURVE FOR 9th SEPTEMBER 2004FVI = 0.04
Avg Freq = 49.99Hz
48.5
49.0
49.5
50.0
50.5
51.0
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
10 * ∑ (F – 50) 2
FVI = -------------------------------
24 * 60
49
SPECIFIC ACTION BY RLDC LOSS REDUCTION
• TAP CO-ORDINATION• FILTER CO-ORDINATION• REDUCED LINE OPENING• HVDC SET POINT CHANGES• VAR MANAGEMENT
REVIVAL OF DORMANT INTER-STATE LINES 100% DISBURSEMENT IN SETTLEMENT
SYSTEM OPTIMISATION OF INTER-REGIONAL
EXCHANGES MERIT ORDER OPERATION
50
TALCHER-KOLAR INTER –TRIP SCHEME (STAGE-1)
IN THE EVENT OF TRIPPING OF TALCHER-KOLAR POLE/BIPOLE, INSTANTANEOUS AND IMMEDIATE
500MW LOAD RELIEF IS OBTAINED FROM THE FOLLOWING SUBSTATIONS :
-KARNATAKA: HOODY, KOLAR
-TAMILNADU: SRIPERAMBADUR , HOSUR
-ANDHRA PRADESH: CHINKAMPALLI
Note: This scheme is already in vogue
51
TALCHER-KOLAR INTER –TRIP SCHEME (STAGE-2)
IN THE EVENT OF TRIPPING OF TALCHER-KOLAR BIPOLE ADDITIONAL 1000MW LOAD RELIEF TO BE OBTAINED FROM THE FOLLOWING SUBSTATIONS :
-KARNATAKA: SOMANAHALLI
-TAMILNADU: MADURAI,THIRUVARUR,INGUR,KAIRAKUDDY
-ANDHRA PRADESH: SOMAYAJULAPALLI, GOOTY, ANANTAPUR, KARNOOL
-KERALA: TRICHUR NORTH , KOZHI-KODE
52
GENERATION ADDITION & SYSTEM STRENGTHENING (RECENT PAST)
GENERATION ADDITION• 500MW TALCHER U # 5 ON COMMERCIAL OPERATION W.E.F 1ST
NOV 04• 500MW U#7 AT NTPC, RAMAGUNDAM TEST SYNCHRONISED ON
26-SEP-04.SYSTEM STRENGTHENING
• 220KV INTER-STATE LINES OF AP – KAR IN PARALLEL– SEDAM – TANDUR FROM 18-AUG-04– GOOTY – ALIPUR FROM 10-SEP-04
• 40% FIXED SERIES COMPENSATION COMMISSIONED AT – GOOTY OF GOOTY-HOODY LINE ON 19/OCT/04
• FLOW INCREASED FROM 110MW TO 140MW.– CUDDAPAH OF N’SAGAR-CUDDAPAH D/C LINE ON 20-
21/OCT/04• FLOW INCREASED FROM 270MW TO 355MW.
• 400KV RAMAGUNDAM – HYDERABAD III & IV ON COMMERCIAL OPERATION FROM 01-NOV-04.
53
Components of inter-utility tariff(Pre – ABT Mechanism)
Fixed charges Interest on loans Depreciation O & M charges Return on equity Interest on Working Capital
Energy charges (fuel cost) Incentives Surcharge & other levies No charge for reactive energy
54
Payment to Inter State Generating Stations
(ISGS) from beneficiaries under Availability Based Tariff (ABT)
Capacity chargesEnergy chargesUnscheduled Interchange (UI)
55
1000
900
800
700
600
500
400
300
200
100
0
0 2 4 6 8 10 12 14 16 18 20 22 24
Forecast ex-bus capability of Power Plant
Hours
MW
Net Injection Schedule
SEB - A's Requisition
SEB - A's Entitlement - (40% )
SCHEDULING
56
CAPACITY CHARGE
Capacity charge will be related to ‘availability’ of the generating station and the percentage capacity allocated to the state. ‘Availability’ for this purpose means the readiness of the generating station to deliver ex-bus output expressed as a percentage of its rated ex-bus output capability.
57
ENERGY CHARGE
Energy charges shall be worked out on the basis of a paise per kwh rate on ex-bus energy scheduled to be sent out from the generating station as per the following formula
Energy charges = Rate of energy charges
(paise/kwh) x Scheduled Generation (ex-bus MWh)
58
UNSCHEDULED INTERCHANGE (U I) :
Variation in actual generation / drawal with respect to scheduled generation / drawal shall be accounted for through Unscheduled Interchange (UI).
UI for generating station shall be equal to its total actual generation minus its scheduled generation.
UI for beneficiary shall be equal to its total actual drawal minus its total scheduled drawal.
59
UNSCHEDULED INTERCHANGE (U I) :
UI shall be worked out for each 15 minute time block.
Charges for all UI transactions shall be based on average frequency of the time block.
UI rates shall be frequency dependent and uniform throughout the country.
60
0
50
100
150
200
250
300
350
400
450
500
550
600
650
48.9 49 49.1 49.2 49.3 49.4 49.5 49.6 49.7 49.8 49.9 50 50.1 50.2 50.3 50.4 50.5 50.6 50.7 50.8 50.9 51
Frequency ----------->
UI ra
te
-----
------
------
>
Below 49.0 Hz UI rate =570 p/u
At 50.0 Hz UI rate =150 p/u
At 49.8 Hz UI rate =210 p/u
Above 50.5 Hz UI rate =0 p/u
UI RATE
Rate of Unscheduled Drawal/InjectionFrequency (Hz) Rate (p/u)
Above 50.5 0
50.0 150
49.8 210
49.0 and below 570
61
AVAILABILITY BASED TARIFF
(A) CAPACITY CHARGE
(B) ENERGY CHARGE
(C) ADJUSTMENT FOR DEVIATIONS
(U I CHARGE)
(A) = a function of the Ex-Bus MW availability of Power Plant for the day declared before the day starts x SEB’s % allocation from the plant
(B) = MWh for the day as per Ex-Bus drawal schedule for the SEB finalised before the day starts x Energy charge rate
(C) = Σ (Actual energy interchange in a 15 minute time block – scheduled energy interchange for the time block) x UI rate for the time block
TOTAL PAYMENT FOR THE DAY = (A) + (B) ± (C)
62
FEATURES :
(A) and (B) do not depend on actual plant generation / drawal. No metering required for this as they are based on off-line figures. All deviations taken care of by (C)
No complication regarding deemed generation.
Perpetual incentive for maximizing generation and reducing drawal during deficit, but no incentive to over generate during surplus.
63
TALCHER-KOLAR INTER –TRIP SCHEME (STAGE-1)
IN THE EVENT OF TRIPPING OF TALCHER-KOLAR POLE/BIPOLE, INSTANTANEOUS AND IMMEDIATE
500MW LOAD RELIEF IS OBTAINED FROM THE FOLLOWING SUBSTATIONS :
-KARNATAKA: HOODY, KOLAR
-TAMILNADU: SRIPERAMBADUR , HOSUR
-ANDHRA PRADESH: CHINKAMPALLI
Note: This scheme is already in vogue
64
HIGH SPEED INTER-TRIP SCHEME AT KOLAR
GOOTY
HOODY
SALEM
TRICHUR
MADURAI
TRICHY
SPBDR
NLC II
CUDDAPAH
PONDICHERY
SOMANHALLIKOLAR
HOSUR
NLC -1 EXP.KOZIKODE
UDUMALPET
NLC II EXPBAHOOR
KURNOOL
ANANTPUR
KARAIKUDI
THIRUVARUR
INGUR
SOMYAZULA PALLI
TO TALCHER
65
TALCHER-KOLAR INTER –TRIP SCHEME (STAGE-2)
IN THE EVENT OF TRIPPING OF TALCHER-KOLAR BIPOLE
ADDITIONAL 1000MW LOAD RELIEF TO BE OBTAINED FROM THE FOLLOWING SUBSTATIONS :
-KARNATAKA: SOMANAHALLI
-TAMILNADU: MADURAI,THIRUVARUR,INGUR,KAIRAKUDDY
-ANDHRA PRADESH: SOMAYAJULAPALLI, GOOTY, ANANTAPUR, KARNOOL
-KERALA: TRICHUR NORTH , KOZHI-KODE
NOTE : NECESSARY WIDE BAND AND PLCC COMMUNICATION LINKS AND
OTHER LOGISTICS TO BE PROVIDED AND IMPLEMENTED BY POWERGRID AND RESPECTIVE STATES
66
AP KAR KER TN PONDY
Net UI exported(-) /
Imported(+) in MUs
-3187 2708 994 1018 -32
Net amount paid in Crores Rs. -616 481 170 242 -2
Average rate of UI in paise/unit 193 178 171 238 74
SUMMARY OF UI – 93 WKS(FROM 01/JAN/03 TO 10/OCT/04)
67
UI IN SR (FROM 01/01/03 TO 10/10/04)
• TOTAL UI TURNOVER :- 5551 MU
• TOTAL UI AMOUNT DISBURSED:- 1065 CR
• AVG WEEKLY TRANSACTION:- 60 MU
• AVG WEEKLY UI AMOUNT DISBURSED:- 11.45 CR
68
PAYMENT STATUS IN REGARD TO UI UPTO 93 WKS (TILL 10/10/04)
1. NET ENERGY TRANSACTION IS 146 MU (IMPORT BY SR).
2. AMOUNT ACCRUED IN SREB – IRE DUE TO DIFF. IN WR A/C = 41.83Crs
3. AMOUNT TO BE ACCRUED IN WREB – IRE DUE TO DIFF. IN SR A/C = 27.71Crs
4. AMOUNT DUE TO SR CONSTITUENTS ON 50:50 BASIS = 34.73Crs
5. AMOUNT ALREADY DISBURSED TO SR CONSTITUENTS = 33.39Crs
FOR INTER-REGIONAL TRANSACTIONS
FOR INTRA-REGIONAL TRANSACTIONS
THE UI SETTLEMENT WITHIN THE REGION IS
UP-TO-DATE
69
VOLTAGE PROFILE IN SR GRID TYPICAL DAY IN OCTOBER 2004
360
370
380
390
400
410
420
430
440
RA
MA
GU
ND
AM
HY
DE
RA
BA
D
GA
ZU
WA
KA
NU
NN
A
N'S
AG
AR
KU
RN
OO
L
GO
OT
Y
NE
LLO
RE
CU
DD
AP
AH
BA
NG
ALO
RE
CH
EN
NA
I
NE
YV
ELI
VO
LT
AG
E L
EV
EL
02:00HRS
19:00HRS
70
G1 G2
SERC
SLDCSEB/STU
State Govt.
RLDC
REB
CTU
CERC
Central Govt. CEA
ISTS
ISGS
Load
L1 L2
Intra State System
IEGC to Operate on the periphery
X= - GL G
71
CONTROL AREAS
CS - 1 CS - 3
CS - 2
SEB-B SEB-C
STATE
DISTR - A DISTR - C
DISTR - B
SEB's GRIDSLDCCOORDINATES/DIRECTS
SEB-A
COORDINATES/RLDC
REGIONAL GRID
IPP
STATEGENR.
SHARECENTRAL
72
HOW DID THE LOSSES GET REDUCED IN THE SOUTHERN REGION?
• VOLTAGE IMPROVEMENT IS THE MAIN REASON
• POWER = VOLTAGE X CURRENT
• LOSS ≈ CURRENT2
• FOR EXAMPLE – 440 W = 220 VOLTS X 2 AMPS
– LOSS ≈ 4 WATTS– 440 W = 160 VOLTS X 2.75 AMPS ( AT REDUCED
VOLTAGE)
– LOSS ≈ 7.6 WATTS ( NEARLY DOUBLE!)
73
PROJECTS IN PROGRESS IN SOUTHERN REGION
• 400 KV MADURAI-TRIVANDRUM LINE WITH 400 KV SS AT TRIVANDRUM
• 400 KV NELAMANGALA-MYSORE LINE WITH 400 KV SUBSTATION AT MYSORE
• 400 KV KAIGA-NARENDRA LINE ALONG WITH 400 KV SUB STATION AT NARENDRA
• 400 KV HYDERABAD-KURNOOL-GOOTY LINE• 400 KV 2nd GOOTY-BANGALORE LINE• 400 KV RAICHUR-GOOTY D/C QUAD LINE• 400 KV RING MAIN AROUND BANGALORE• 400 KV RING MAIN AROUND CHENNAI
74
PROJECTS IN SOUTHERN REGION
• 400 KV RAMAGUNDAM – HYDERABAD-GOOTY-NELAMANGALA LINE: RS 390 CRORES
• ADDITIONAL 500 MW HVDC POLE AT GAZUWAKA: WORTH Rs 770 CRORES
• ENHANCEMENT OF CAPACITY OF TALCHER POLES BY 500MW (FROM 2000 MW TO 2500 MW FOR UTILISATION DURING EMERGENCY ONLY): Rs 90 CRORES
• SYSTEM AUGMENTATION SCHEMES : Rs 415 CRORES• KOODANKULAM NUCLEAR PLANT EVACUATION
SCHEME – 2000 MW CAPACITY- WORTH ABOUT Rs 1700 CRORES
• ANOTHER HVDC LINK TO SR FROM ER/WR• SYSTEM EXPANSION SCHEMES WORTH Rs 1233
CRORES
75
THE FIRST SCHEME: 1996THE FIRST SCHEME: 1996
KHAMMAM
VIJAYAWADA
NAGARJUNASAGAR
HYDERABAD
RAICHUR
GOOTY
HOODY
SALEM
UDUMALPET
TRICHUR
MADURAI
TRICHY
MADRAS
NEYVELI
CUDDAPAHDAVANAGERE
KAIGA
115
317
RSTPP
BHADRAVATI
130x2
164x
2
182
151
181
173
302
308
172
277
279
155
178x
2BANGALORE
SIRSI
MUNIRABAD
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
N
JEYPORE
63
187
2x221
54
Kadra
Kodasally
Nagjhari
1
120
60
MAPS
P
NELLORE
By Tripping of Salem-Bangalore and
Cudddapah-Madras Southern Grid was
getting devided into two blocks
NELAMANGALA
GAZUWAKA
HIRIYUR
189
267x
2
258
242
175
179
127 130x
2
221x2
146x2
52x2
301x2
300
28
330
FIG-2
THE SR GRID IN
1996
76
THE FIRST SCHEME: 1996THE FIRST SCHEME: 1996CONDITIONSCONDITIONS
Line Name Frequency Below (Hz)
POWER FLOW(MW)
Time delay (second)
Type of Relay
CUDAPPA-MADRAS 47.8 0.5 UF
SALEM- BANGALORE
47.8 1 UF
CUDAPPA-MADRAS 48.0 100 MW towards CUDAPPA
0.5 RPUF
SALEM- BANGALORE
48.0 300 MW towards BANGALORE
1 RPUF
77
SPECIAL PROTECTION SPECIAL PROTECTION SCHEMESSCHEMES
DEFINITIONDEFINITIONPROTECTION SCHEME DESIGNED PROTECTION SCHEME DESIGNED
TOTO
DETECT ABNORMAL SYSTEM DETECT ABNORMAL SYSTEM CONDITIONSCONDITIONS AND TAKE AND TAKE
PREDETERMINED CORRECTIVE ACTIONPREDETERMINED CORRECTIVE ACTION
(Other than isolation of faulty element)(Other than isolation of faulty element)
TO TO
PRESERVE SYSTEM INTEGRITY AND PRESERVE SYSTEM INTEGRITY AND PROVIDE ACCEPTABLE SYSTEM PROVIDE ACCEPTABLE SYSTEM
PERFORMANCEPERFORMANCE
78
WHY SPS? WHY SPS? OPERATIONAL OPERATIONAL REASONSREASONS
OUTAGE OF HIGH CAPACITY GENERATING OUTAGE OF HIGH CAPACITY GENERATING UNITS,HVDC INTERCONNECTION OF UNITS,HVDC INTERCONNECTION OF LARGE TRANSFER CAPABILITYLARGE TRANSFER CAPABILITY
WIDE SEASONAL FLUCTUATION IN WIDE SEASONAL FLUCTUATION IN LOADING PATTERNLOADING PATTERN
STAGGERING AND ROSTERING OF LOADS STAGGERING AND ROSTERING OF LOADS
SUDDEN IMPACT ON LARGE GRIDS DUE SUDDEN IMPACT ON LARGE GRIDS DUE TO SYATEM DYANAMICS AND SWINGS.TO SYATEM DYANAMICS AND SWINGS.
79
WHY SPS? WHY SPS? COMMERCIAL COMMERCIAL REASONSREASONS
SKEWED GENERATION AND LOAD SKEWED GENERATION AND LOAD PATTERN AND PRESSURE ON PATTERN AND PRESSURE ON RELIABILITY MARGINS DUE TORELIABILITY MARGINS DUE TO DRIVEN BY COMMERCIAL MECHANISMS DRIVEN BY COMMERCIAL MECHANISMS
OPEN ACCESS INCREASE IN TRADE OPEN ACCESS INCREASE IN TRADE VOLUMEVOLUME
INCREASE IN COMPETITIONINCREASE IN COMPETITION
MERIT ORDER OPERATIONMERIT ORDER OPERATION
80
WHY SPS? WHY SPS? PLANNING PLANNING ISSUESISSUES ECONOMY OF SCALEECONOMY OF SCALE
THE SYSTEM PLANNERS TEND TO UTILIZE THE SYSTEM PLANNERS TEND TO UTILIZE THE EXISTING NETWORKTHE EXISTING NETWORK
DELAYS IN NETWORK EXPANSION DUE TO DELAYS IN NETWORK EXPANSION DUE TO ENVIRONMENTAL PROBLEMS ENVIRONMENTAL PROBLEMS
SEASONAL OVER LOADSSEASONAL OVER LOADS
LINES AND GENERATORS NOT COMING IN LINES AND GENERATORS NOT COMING IN TANDEMTANDEM
81
WHY SPS?WHY SPS?
Mission of power system engineers is to Mission of power system engineers is to provide Stable Secured and Reliable power provide Stable Secured and Reliable power supply at least possible cost to the end supply at least possible cost to the end consumer. SPS is an important tool in consumer. SPS is an important tool in achieving thisachieving this For System Planner It reduce the compromise For System Planner It reduce the compromise
between between cost and qualitycost and quality
For operational planner It enables to manage For operational planner It enables to manage severe severe contingencies like contingencies like
tripping of tripping of generators multiple generators multiple outage of outage of transmission lines transmission lines etcetc
82
POSSIBLE SYSTEM POSSIBLE SYSTEM PROLEMSPROLEMS
UNIT FAILURE
INSUFFICIENTGENERATION
TRANSFORMER/LINE FAILURE
LOSS OFLOAD
REDUCEDNETWORK
REDUNDANCY
LINE OVERLOADOR
UNSATISFACTORYBUS VOLTAGE
BUS ISOLATED
LOSS OFGENERATION
ISLANDING
SYSTEM SYSTEM COLLAPSCOLLAPS
EE
83
RESTORATIVE
NORMAL
A L E R T
EMERGENCYDISTURBANCE
84
RESTORATIVE
NORMAL
A L E R T
EMERGENCYDISTURBANCE
85
INDUSTRY EXPERIENCE WITH INDUSTRY EXPERIENCE WITH SPSSPS
REPORTED SCHEMESREPORTED SCHEMES 111111 FIRST SPS INSTALLEDFIRST SPS INSTALLED IN 1930IN 1930 SCHEMES REPORTED BY GEOGRAPHICAL SCHEMES REPORTED BY GEOGRAPHICAL
REGIONSREGIONSGEOGRAPHICAGEOGRAPHICAL L
REGIONREGION
% OF % OF SCHEMESSCHEMES
GEOGRAPHICAL GEOGRAPHICAL
REGIONREGION% OF % OF SCHEMESSCHEMES
USAUSA 20.7%20.7% EUROPEEUROPE 16.2%16.2%
JAPANJAPAN 20.7%20.7% AUSTRALIAAUSTRALIA 9%9%
CANADACANADA 19.8%19.8% OTHERSOTHERS 13.6%13.6%
SURVEY IS ONLY INDICATIVE
86
HIGH SPEED INTER-TRIP HIGH SPEED INTER-TRIP SCHEME AT KOLARSCHEME AT KOLAR
GOOTY
HOODY
SALEM
TRICHUR
MADURAI
TRICHY
SPBDR
NLC II
CUDDAPAH
PONDICHERY
SOMANHALLIKOLAR
HOSUR
NLC -1 EXP.
UDUMALPET
BAHOOR
KURNOOL
SOMYAZULA PALLI
TO TALCHER
87
HIGH SPEED INTER-TRIP HIGH SPEED INTER-TRIP SCHEME AT KOLARSCHEME AT KOLAR
MODE OF OPERATION
POWER LEVEL FOR GENERATING INTERTRIP SIGNAL
MONO POLAR >400 MW AND THE POLE TRIPS
BI-POLAR
IF BOTH POLE ARE CARRYING > 800 MW EACH AND ONE POLE TRIPS
IF EACH POLE IS CARRYING POWER IN THE RANGE OF 400 TO 800 MW AND ONE POLE TRIPS AND AFTER THE DELAY OF 2 SECS THE POWER ON SURVIVING POLE IS LESS THAN 600MW
IF POWER FLOW ON EACH POLE > 200 MW AND BOTH POLES TRIP WITH IN 2 SECS
88
KAIGA EVACUATION KAIGA EVACUATION PROBLEMPROBLEM
SPS BASED SOLUTIONSPS BASED SOLUTION
KAIGA
440 MW SIRSI
KADRA
150 MW
KODASHALLI
120 MW
GUTTUR
NAGJHERI
855 MW
HUBLI
400 KV LINE OPERATED AT 220 KV
PROBLEM OF OVERLOADING WHEN HIGH GENERATION AT KALI COMPLEX
THESE LINES ARE TRIPPED IF
>600 AMPS FOR 1SEC OR > 900 AMPS FOR 300 MSEC,
89
PROPOSED SPS AT PROPOSED SPS AT RAICHURRAICHUR
RAICHURN’SAGAR
MUNIRABAD
DAVANGERE
HIRIYUR
NELAMANGALA
HOODY
GOOTY
CUDDAPAH
KOLAR
HVDC LINES
FROM ER
SOMANAHALLYTRIPPING OF THESE LINES INCREASES THE FLOW ON RAICHUR-N’SAGAR LINE
LOAD CENTRE
PROPOSED SPS BASED SOLUTION
RTPS UNITS TO BACK-DOWN BASED ON FLOW ON
RAICHUR-N’SAGAR LINE
90
ULDC PROJECT ULDC PROJECT HIGHLIGHTSHIGHLIGHTS
MOU signed with each constituent of SRMOU signed with each constituent of SR Last quarter 1992Last quarter 1992
CEA Clearance – Feb 1993CEA Clearance – Feb 1993 PIB Clearance – March 1993PIB Clearance – March 1993 Environmental clearance – May 1993Environmental clearance – May 1993 Engaged M/s KEMA-ECC, USA, an Engaged M/s KEMA-ECC, USA, an
Internationally reputed Consultants towards Internationally reputed Consultants towards consultancy servicesconsultancy services
CCEA – February 1995CCEA – February 1995 AWARDED IN JAN 1998AWARDED IN JAN 1998 COMPLETED ON SCHEDULE :- JAN 2002COMPLETED ON SCHEDULE :- JAN 2002
91
Packages under ULDC Packages under ULDC schemescheme
Sl Sl No:No:
PackagePackage ContractorContractor Contract Contract ValueValue
11 EMS/SCADA SystemEMS/SCADA System GE Harris, GE Harris, USAUSA
Rs. 148 Rs. 148 CroresCrores
22 Fibre Optic SystemFibre Optic System PIRELLI, PIRELLI, ItalyItaly
Rs.100 Rs.100 CroresCrores
33 Microwave SystemMicrowave System ALSTOM, ALSTOM, FranceFrance
Rs. 63 Rs. 63 CroresCrores
44 PLCC/PABXPLCC/PABX Puncom, Puncom, PunjabPunjab
Rs. 4 CroresRs. 4 Crores
55 Auxiliary Power supply Auxiliary Power supply packagepackage
TATA TATA LIEBERT, LIEBERT, MumbaiMumbai
Rs.6 CroresRs.6 Crores
66 Control CentreControl CentreFacilities Facilities renovation/constructionrenovation/construction
Awarded separately by each Awarded separately by each ConstituentConstituent
92
RLDC,Bangalore
KalamasseryHyderabad BangaloreChennai
Cuddapah
Warangal
Vijayawada
Kalam’erry
Kannur
Trivandrum
Chennai
Erode
Madurai
Bangalore
Lingusugur
Hubli
CPCC SCC, Pondy
Hyderabad
Hierarchy of The ULDC Scheme in Southern Region
Andhra Kerala Tamilnadu Karnataka
93
EMS/SCADA Package … EMS/SCADA Package … ContdContd
Sl No:Sl No: ConstituentConstituent RTUs suppliedRTUs supplied Existing RTUs Existing RTUs integratedintegrated
Control Control CentresCentres
1.01.0 APTRANSCOAPTRANSCO 9191 -- 44
2.02.0 TNEBTNEB 4040 3535 33
3.03.0 KPTCLKPTCL 2222 2121 33
4.04.0 KSEBKSEB 3030 -- 33
5.05.0 UT of PondyUT of Pondy 55 99 11
6.06.0 Central SectorCentral Sector 2727 -- 11
TotalTotal 215215 6565 1515
RTUs Grand Total : 280 RTUs Grand Total : 280
94
Andhra Pradesh
Karnataka
Kerala
Tamilnadu
UT of Pondy
Vijayawada
Warangal
HYDERABADGhanapur
Chinkampalli
CHENNAI
Pondy
Madurai
Kannur-B
KALAMASSERY
Vydyuthi Bhavanam
Erode
MW LinkFO LinkState owneed Link
Sub-LDC
SLDC
RCLDC
Hubli
Davangeree
Bangalore
Information Flow to Control CentresInformation Flow to Control Centres
Satellite
Ramagundam
95
Communication Channel for Information flow
Sub-LDC
SLDC
RLDC
SLDC
Sub-LDC
RTU RTU
Wide Band /PLCC Commn
Wide Band Commn
Wide Band Commn(MW / FO)
RTU
96
ULDC TRAININGULDC TRAINING
SL NAME OF THE TRAINING FROM TO Participants Man days
1CISCO ROUTER &
NETWORKING19-01-2004 24-01-2004 17 102
2 XA-21 USER LEVEL 23-02-2004 28-02-2004 10 60
3 RTNA WORKSHOP 29-03-2004 31-03-2004 14 42
4 AIX OPERATING SYSTEM 17-05-2004 22-05-2004 15 90
5 XA-21 USER LEVEL 21-06-2004 25-06-2004 6 30
6 DATABASE ADMINISTATION 22-11-04 04-12-04 19 228
97
Annual Inter-Regional Energy Transfer
≈10,000MU
Transformation Capacity ≈
45000 MVA
Transformers (220kV and above)
480 nos.
Installed Capacity≈31870 MW
Integrated Opn of Ten Power
Utilities
Dynamic Grid Conditions
Southern Region Grid Complexities in Monitoring & Control
Generators –Hydro, Thermal,Gas/IPP
422 nos.
Transmission Network 400/220kV
≈ 37500 Ckm
40,000 POINTS Active Power, Reactive Power,
Voltage, Frequency, Transformer Tap Position, Circuit Breaker Position,
Isolator Position etc.
98
Bouquet of Benefits
• Integrated System Operation with improved system visibility
• Enhanced Operation Efficiency
• Quality Power - Frequency and Voltage Control
• Merit Order and Economic Load Dispatch
• Fewer System Collapses & Faster Restoration
• First Step towards Sub-station Automation
• Adaptability to the ever growing Power System
99
DEVELOPMENT OF NATIONAL GRID
NER
ER
NR
WR
SR
EXISTING
500MW
MW1000
MW500
GAZUWAKA
CHANDRAPUR
VINDHYACHAL
SASARAM
UNDERCONST.
EXISTING
400 kV
220 kV
BONGAIGAONBIRPARA
MALDA
KORBA BUDHIPADAR
KOLHAPUR
BELGAUM
U.SILERU
BALIMELA
DEHRISAHUPURI
MALANPUR
AURAIYA
PHASE-I(By 2002)
HVDC STATION
KOLAR
(KARNATAKA)
TALCHER
ORISSA)
TALCHER KOLAR HVDC LINE
LENGTH:1400 KMS
100
TALCHER KOLAR LINKTALCHER KOLAR LINK ONE OF THE LONGEST HVDC LINES IN ONE OF THE LONGEST HVDC LINES IN
THE WORLDTHE WORLD DESIGNED TO EVACUATE DESIGNED TO EVACUATE 2000 MW2000 MW COMMISSIONED IN ADVANCE TO COMMISSIONED IN ADVANCE TO
UTILISE NON-PEAK SURPLUS POWER UTILISE NON-PEAK SURPLUS POWER OF EASTERN REGIONOF EASTERN REGION
COMMISSIONED 9 MONTHS AHEAD COMMISSIONED 9 MONTHS AHEAD OF SCHEDULEOF SCHEDULE
THE PROJECT HAS USED THE PROJECT HAS USED APPROXIMATELY 90,000 TONNES APPROXIMATELY 90,000 TONNES OF STEEL AND 16,000 KM OF OF STEEL AND 16,000 KM OF CABLES CABLES
101
TALCHER KOLAR HVDC LINKTALCHER KOLAR HVDC LINKBENEFITS TO SOUTHERN REGIONBENEFITS TO SOUTHERN REGION
SUBSTANTIAL IMPROVEMENT IN THE SUBSTANTIAL IMPROVEMENT IN THE VOLTAGE PROFILE FOR THE REGION.VOLTAGE PROFILE FOR THE REGION.
TRUNK LINE LOADINGS EASED – TRUNK LINE LOADINGS EASED – INCREASED TRANSFER MARGIN.INCREASED TRANSFER MARGIN.
MAX IMPORT FROM ER 1600 MWMAX IMPORT FROM ER 1600 MW MORE DEMAND IS BEING MET.MORE DEMAND IS BEING MET. DEPLETED HYDRO RESERVES IS BEING DEPLETED HYDRO RESERVES IS BEING
CONSERVED.CONSERVED. AVERAGE COST OF POWER IS BROUGHT DOWNAVERAGE COST OF POWER IS BROUGHT DOWN SURPLUS IN ER EFFECTIVELY UTILISEDSURPLUS IN ER EFFECTIVELY UTILISED PERFORMANCE IMPROVEMENT OF POWER PERFORMANCE IMPROVEMENT OF POWER
STATIONS IN EASTERN REGIONSTATIONS IN EASTERN REGION INCREASED STOA TRANSACTIONSINCREASED STOA TRANSACTIONS
102
TALCHER-KOLARTALCHER-KOLAR IMPORT OF 12728MUs FROM ER THROUGH TALCHER-KOLAR UPTO OCT-04
YEAR --->YEAR ---> 20022002 20032003 20042004
MONTHSMONTHSTOTAL TOTAL
ENERGY ENERGY (IN MU)(IN MU)
MAX FLOW MAX FLOW (IN MW)(IN MW)
TOTAL TOTAL ENERGY ENERGY (IN MU)(IN MU)
MAX MAX FLOW FLOW
(IN MW)(IN MW)
TOTAL TOTAL ENERGY ENERGY (IN MU)(IN MU)
MAX MAX FLOW (IN FLOW (IN
MW)MW)
JANJAN ------ ------ 311311 850850 805805 15281528
FEBFEB ------ ------ 273273 10101010 701701 15081508
MARMAR ------ ------ 491491 13161316 837837 16001600
APRAPR ------ ------ 473473 11831183 923923 15001500
MAYMAY ------ ------ 172172 10261026 652652 13851385
JUNJUN ------ ------ 277277 994994 688688 14161416
JULJUL ------ ------ 319319 10751075 759759 14901490
AUGAUG ------ ------ 346346 10881088 628628 13411341
SEPSEP 66 200200 512512 15331533 742742 15521552
OCTOCT 5858 500500 508508 1458 1458 829829 15501550
NOVNOV 7777 500500 470470 1048 1048
DECDEC 241241 750750 630630 1383 1383
TOTALTOTAL 382382 47824782 75647564
MAXMAX 750750 15331533 16001600
103
104
Ex-Bus Capacity under requisitioned / underutilised in Gas and Nuclear stations (during the week 6th Oct to 12th Oct 2003)
121 121 121 128 126 123 128
60 59 60 60 50 60 58
91 91 96 96 100 96 96
113 113 114 120 124 121 116
180 180 180180 180 180 175
0
100
200
300
400
500
600
700
06.10.2003 07.10.2003 08.10.2003 09.10.2003 10.10.2003 11.10.2003 12.10.2003
Me
ga
wa
tts
Dadri (L) Anta (L) Aurya (L) NAPS RAPS
On 9th Oct 2003 f < 49.0 Hz = 1.56 % of time f < 49.5 Hz = 15.35 % of time f < 50.0 Hz = 81.01 % of time f < 50.5 Hz = 99.90 % of time
105
RESERVOIR LEVEL - RESERVOIR LEVEL - COMPARISONCOMPARISON
LEVEL IN MTSLEVEL IN MTS LEVELLEVEL30-Nov-0330-Nov-03
LEVELLEVEL30-Nov-0430-Nov-04
JALAPUTJALAPUT 837.48837.48 836.17836.17
LINGANMAKKILINGANMAKKI 545.35545.35 548.61548.61
SUPASUPA 534.73534.73 545.48545.48
IDUKKIIDUKKI 715.65715.65 772.96772.96
KAKKIKAKKI 969.19969.19 972.43972.43
NILGIRISNILGIRIS
TOTALTOTAL
ENERGYENERGY30-Nov-0330-Nov-03
ENERGYENERGY30-Nov-0430-Nov-04
RISE IN RISE IN MUMU
% % RISERISE
514514 440440 - 7474 -1414
21482148 27082708 560560 2626
10621062 17871787 725725 6868
947947 14131413 466466 4949
528528 612612 8484 1616
559559 14631463 904904 162162
57585758 84238423 26652665 4646
• Only 7500MUs Reserve till next monsoon (6 Months)
• 40 MUs/day could be generated as against about 70 MUs/day at present.
106
GRID OPERATION:GRID OPERATION: A TIGHT ROPE WALK A TIGHT ROPE WALK
BLACK-OUTVOLTAGE
COLLAPSE IN-ECONOMIC
OPERATION
INSTABILITYPOWER
SWINGSINCREASED
LOSSES
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