Transmission System Planning - NPTI Durgapur
Transcript of Transmission System Planning - NPTI Durgapur
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Transmission System Planning- New technology, FACTS & HVDC
Anil Kumar Meena
DGM (CTU-Plg)
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Power Supply Value Chain
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All Segments need to be Strengthened Simultaneously & Harmoniously
LOAD
GENERATION
TRANSMISSION
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Self Sufficiency at State Level
Self Sufficiency at Regional level
Optimal Utilization
of Resources at National
level
State → Region → Nation: A Paradigm Shift
1950s
• Local
1950s-60s
• State Grid by SEBs
1970s-80s
• Regional Grids with Trans. Systems of Central Gen. Stations
1990s-2010
• Interconnecting Regional Grids with HVDC
2010-2019
• National Grid
NATIONAL GRID - DEVELOPMENT
NEW – SR grid synchronized in Dec’13[One of the largest Grids in the world]
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Peculiarities of Regional Grids in India
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Hydro – In North Eastern & Northern
Himalayan region
Coal – In Central India
‾ Chhattisgarh , Odisha , Jharkhand,
Madhya Pradesh
‾ Coastal (Imported Coal based)
Andhra Pradesh, Tamil Nadu, Gujarat
Renewable Energy – Solar & Wind
Across the country
‾ Major Potential Areas : Tamil Nadu,
Andhra Pradesh, Karnataka, M.P,
Rajasthan, Maharashtra, Gujarat
Energy resources (Coal, RES etc.) unevenly distributed
ENERGY RESOURCES
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Development of National Grid
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• Indian Grid was divided into 5 independent Regional Grids
• Initially, National Grid was formed by interconnecting different regions through HVDC Back-to-Back Links
• Subsequently, regional grid have been synchronised in progressive manner through EHVAC links
• Presently, synchronous National Grid has been established
• However, sstrengthening of National Grid is a continuous process to match with upcoming generation and increasing demand
5,05014,050
27,750
75,050
100,050
118,050
IX Plan X Plan XI Plan XII Plan Present XIII Plan
Inter-Regional (I-R) Capacity(MW, as at the end of)
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October 1991East & North-East
synchronized
Central Grid
March 2003West synchronized
With East & North-East
S
W
N
E
NE
5 Grids5 Frequencies
DEVELOPMENT OF SYNCHRONOUS NATIONAL GRID
NEW Grid
South
Grid
August 2006North synchronized
with Central Grid
* North East West
Dec’2013
South
synchronized
with
NEW Grid
Existing I-R Capacity
1,00,550MW
One NationOne Grid
One Frequency
* Planned (Source: CEA)
One Nation
One Grid
One Market
Reduced Power Procurement Prices in Short Term (Rs.8 p.u. in 2008 to Rs.3
p.u. now)Choice of power
procurement from anywhere in the country
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5,05014,050
27,750
75,050
100,550
118,050
IX Plan X Plan XI Plan XII Plan Present XIII Plan
Inter-Regional (I-R) Capacity(MW, as at the end of)
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National Power Scenario
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Peak Demand
~183.8GW
Annual Consumption
> 1200 BU
State28.3%
Private46.5%
Central25.2%
Sector Wise Capacity
Coal, 203.154, 55.91%
Gas, 24.937, 6.86%
Diesel, 0.509, 0.14%Nuclear, 6.78, 1.87%
Hydro, 45.4, 12.49%
Small Hydro, 4.611, 1.27%
Wind, 36.93, 10.16%
Bio Mass, 9.946, 2.74%
Solar, 31.102, 8.56%
RES17%
NR26%
ER10%
NER & Islands
1%
WR33%
SR30%
Region wise Capacity
Total Installed Capacity ~ 366 GW
Renewable: 84.4 GW
Thermal: 229.4 GW
Hydro: 46 GW
Nuclear: 7 GW
as on 30th Nov ‘19
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Transmission System Planning Process
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Inputs for ISTS Planning
Exhaustive System Studies & Component
Modelling for evolution of Transmission System
Evaluation of various techno-economic
alternatives and assessment based on Transmission
Planning Criteria of CEA
Finalisation of schemethrough stakeholderconsultation in the RegionalPower Committee(Transmission Planning){erstwhile StandingCommittee}
Connectivity/ LTA meetingof respective region
Recommendation to Ministry of Power :
TBCB or RTM by National Committee on
Transmission (NCT)
Finalisation of implementation
modalities by Ministry of Power, Govt. of
India
Open Access applications
National Electricity
Plan of CEA
Operational feedback
Demand projection (EPS) of CEA and Capacity
addition program
RTM TBCB
Discussion of schemes in the Regional Power
Committee (RPC)
Transmission System
Planning Process
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Connectivity (No evacuation Guarantee)
Access in ISTS
Long Term Access
(LTA)
• Augmentation of ISTSmay be required
• Period: > 7 years
Medium Term Open
Access (MTOA)• Based on margins in the
existing/ under executionsystem
• No system augmentation• Period: 3 months - 5 years
Short Term Open
Access (STOA)• Utilizes surplus transmission
capacity available in ISTSafter use by the long-term& medium-term customer
• Period: same day - 3months
Central Transmission Utility (CTU) POSOCO Nodal Agency
REStage-IStage-II
Conventional
Scheduling Priority: LTA >> MTOA >> STOA
Open Access in Inter-State Transmission
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NEW TECHNOLOGIES – IMPROVING EFFICIENCIES
Higher Voltages
– 400kV EHVAC → 765kV EHVAC →1200 UHVAC (Highest Voltage in theWorld)
– ±500kV HVDC → 800kV HVDC(world’s 1st multi-terminal)
Voltage Source Converter(VSC) based HVDC
GIS Substations – Largest GISin Asia at Varanasi
Making the grid smarter forenhanced reliability through -STATCOMs, WAMS, REMCs
Increase in capacity oftransmission corridor through- HTLS Conductor, SeriesCapacitor
Enhanced Stability & Reliability• Facilitating Renewable Integration, Grid
Balancing
Reduction in Land Requirement• Cost Saving; Faster Execution through GIS
Optimized Right of Way use• Increasing carrying capacity of line per
unit of ROW
Reduced Carbon Footprint
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NEW TECHNOLOGIES - Improving Reliability & Efficiencies
Remote Operation of Substations- NTAMC/ RTAMC
Drones for Line Patroling
Helicopters for maintenance
Hot Line Maintenance
Emergency Restoration System
GIS Mapping of TLs
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0
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40
60
80
100
120
Availability
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NR
Present : 1,00,550 MW*
NER
ER
SR
WR
By 2022: 1,18,050 MW
31,020 MW
23,920 MW
21,190 MW
12,120 MW
36,720MW
7,830MW
Inter Regional Capacity
* Includes 8760 MW IR capacity under Pvt. Sector (7200MW)&STUs(1560MW).
INTER REGIONAL TRANSMISSION CAPACITY
One Nation
One Grid
One Market
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AVAILABLE TRANSFER CAPABILITY (ATC) OF WR-NR CORRIDOR
Northern Region
Western Region
Present 17850MW6 No. high Capacity corridors
4500MW, +800kV, Champa –Kurukshetra HVDC Bipole
Gwalior-Agra 765kV 2xS/c
Gwalior-Jaipur 765kV 2xS/c
Jabalpur-Orai 765kV D/c
2500MW, +500kV Mundra –Mahendergarh HVDC
Banaskantha-Chittorgarh 765kV D/c
By 2022 22000MWAddition of 2 corridors
Vindhyachal-Varanasi 765kV D/c
Upgradation of 1500MW, +800kV, Champa – Kurukshetra HVDC Bipole
NR
WR
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AVAILABLE TRANSFER CAPABILITY (ATC) OF NEW-SR CORRIDOR
ER
SR
NR
NER
Present 9500MW 7 No. high Capacity corridors
2500MW, +500kV Talcher-Kolar HVDC
Raichur-Sholapur 765kV 2xS/c
Narendra-Kolhapur 765kV D/c (operated at 400kV)
Wardha-Nizamabad 765kV D/c
Angul-Srikakulam 765kV D/c
1000MW Jeypore Back to back HVDC
1000MW Chandrapur Back to back HVDC
By 2022 19250MWAddition of 2 corridors
Warora Pool-Warangal 765kV D/c
6000MW, +800kV, Raigarh-Pugulur HVDC Bipole
WR
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INTER-CONNECTIONS WITH NEIGHBOURING COUNTRIES PRESENT LINKS
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Existing
interconnections
Present
Capacity
(MW)
Future
Capacity
(MW)
India – Bhutan 2070 4250
India – Bangladesh 1160 1160
India – Nepal 600 1000
India – Myanmar 3 3
Total (approx.) 3830 6410
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Integration of Renewable Generation
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Govt. of India set a target for 175 GW renewable capacity addition by 2022
Transmission System for new Renewable Energy Projects
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100 GW Solar(Existing: 31.5 GW; Balance: 68.5 GW)
60 GW Wind(Existing: 37 GW; Balance: 23 GW)
15 GW Biomass, Small Hydro Plant etc.(Existing: 14.5 GW; Balance: 0.5 GW)
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Challenges in Renewable integration
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• Establishment of Renewable Energy Management Centers (REMCs)
Intermittent
• Planning of SVCs and STATCOMsVariable Output
• Planning of evacuation system based on potential renewable energy zones
Short Gestation
period
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Transmission Infrastructure
ISTS by POWERGRID
3200 ckm, 6 nos. substations
(17000 MVA)
Major Part of Transmission
Commissioned, balance
anticipated by Feb’20
Grid integration of Renewables envisaged in 8 RE resource rich states
GREEN ENERGY CORRIDORS
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Implementation of evacuation system for 7 Solar
Parks (6450 MW) in 5 States by POWERGRID
ISTS for 5 Solar Parks implemented
N.P Kunta Solar Park (1500MW) in Anantpur,
Andhra Pradesh
Pavagada Solar park (2050MW) Karnataka
Rewa Solar park in MP (750 MW)
Bhadla-III & Bhadla-IV Solar Power Park (750
MW)
ATS for other Solar parks (Pavagada Ph. II [1000
MW], Essel SP [750 MW], Radhanesda [700 MW])
is under implementation
Essel Generation by Sep’20
Radhanesda (B’kantha) Generation by Apr’21
Green Energy Corridors- ISTS for UMSPPs
Rewa
Bhadla-III
Bhadla-IVEssel
Radhanesda
NP Kunta
Pavagada
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RENEWABLE ENERGY MANAGEMENT CENTRES (REMC)
Rajasthan
Maharashtra
Karnataka
TN
MP
Gujarat
AP
WRLDC
SRLDC
NRLDC
NLDC
NLDC
Commissioned
Ant. Schedule-Jan’20
Funded by Ministry of Power, GoI
11 no. of REMC : 7 States + 3 Regions + 1 National level
NRLDC
Raj
WRLDC
MP
Guj
Mah
SRLDC
TN
AP
Kar
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Under implementation• REMC at Telangana• EMC at Andaman and Nicobar
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For System Stability• 14 no. of Hybrid
STATCOMs (11,350MVAr) • 4 no. of SVC (2500MVAr)• 48 nos. FSC/TCSC
SVCs and STATCOMs
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SECI / MNRE provided inputs on Solar & Wind Energy Potential Zones in RE
resource rich States
Transmission System evolved for 66.5 GW RE potential
- Solar : 50 GW; Wind :16.5 GW
- NR: 20GW (S: 20GW)
- WR: 28GW (S: 20GW, W:8GW )
- SR: 18.5GW (S:10GW, W: 8.5GW)
- Estimated Cost : ~ Rs 41,700Cr
Transmission system for Prioritised REZ Schemes are to be implemented in
three phases
o Phase-I : 12.4 GW by Dec’20
o Phase-II : 26.1 GW by Dec’21
o Phase-III : 28 GW beyond Dec’21
NEW RENEWABLE ENERGY ZONES
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POWERGRID TODAY
• Transmission Lines~ 1,61,790 ckm
• EHVAC, UHVAC and HVDC Substations248 Nos.
• Transformation Capacity~3,96,824 MVA
Transmission System Availability for FY 2018-19: 99.71%
Data as on 30.11.2019
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INSTITUTION & CAPACITY BUILDING
Created Self-sufficiency in the country for all major equipment
Factories set up in India as per POWERGRIDprocurement conditions
765 kV Transformers/Reactors
765kV GIS, 400kV GIS
STATCOM/ SVC
HTLS Conductor & EHV cables
OPGW
Established facility for On-grid Short Circuit Test for High Voltage equipment, through JV Saving time & forex 2nd such facility, globally
National High Power
Test Laboratory
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धन्यवाद
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Jaisalmer(RVPN)
Jaipur(Phagi)
Bhadla (PG)(Ph-I: +1.05GW)
Fatehgarh
(Ph-I:+1.2GW)
To Jhatikara
From Banaskantha
Chittorgarh
Ajmer
Chittorgarh (RVPN)
Ajmer (RVPN)
To Moga
Bhadla (RVPN)
Ph-I : 8.9 GW
Transmission for Rajasthan SEZ: 20 GW (Ph-I: 8.9GW, Ph-II :11.1GW)
KHETRI
Fatehgarh-2(Ph-I:
2.3GW)(Ph-II:
2.2GW)
Bhadla-2(Ph-I : 2.5GW)
(Ph-II:1.05GW)
Sikar (PG)
Jaisalmer(near Ramgarh/Kuchheri) (Ph-II : 1.9GW)
Bikaner(Ph-I:+1.85GW)
Bikaner-2(Ph-II: 2.95GW)
To Bhiwani
To Gwalior
To Anta
Bhiwadi(Reversal of Balia-BhiwadiHVDC link)
Ph-II: 11.1 GW*
Narela
Bhiwadi
To Balia
* Out of 11.1 GW, 3 GW to be evacuated by RVPN through its planned/existing transmission system
Aligarh
ToMeeru
t
ToBhiwa
ni
To Mandola
To Bawana
To MaharanibaghTo
Gopalpur
Bikaner (RVPN)
Sikar-II
Neemrana
RAJASTHAN – RENEWABLE ENERGY ZONES
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Bhuj Pool
Banaskantha
Ahmedabad
Lakadia
Vadodara
Dhule
IndoreBhuj Pool 2
Pirana(T)
Green Energy Corridor
Chittorgarh
Sankhari
Jam KhambaliyaEssar
Bachau
Substation for REZ Ph-II
Other ISTS/intra state sub stations
Substation for REZ Ph-I Part II
Substation for Green Energy Corridor
Pirana(P)
W1-II: 2GW
W1-I: 2GW*
W1-I: 1.5GWW3: 0.5GW
Substation for REZ Ph-III
Existing/Other ISTS/Intr-ISTSUC ISTS/Intr-ISTS
Tr. Scheme for Phase-2
Tr. Scheme for Phase-1 Part II
Tr. Scheme for Phase-3
Tr. Scheme for Phase-1 Part ISubstation for REZ Ph-I Part I
Dholera UMPP
Tr. Scheme for Dholera UMPP
Dholera (4 GW)
KhavdaS3: 6.1GW
S3: 3.4GW (Khavda)
Radhanesda (0.7GW)
S3: 0.5GW (Khavda)
*LTA for 0.6GW received against total SECI LOAs of 1.28GW
GUJARAT– RENEWABLE ENERGY ZONES
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Sholapur SEZ
Parli (New)
Pune
Padghe
Sholapur(PG)
Existing Lines
Tr. Scheme for Phase-2Raichur
Warora Pool
Aurangabad
Wardha SEZ
GadarwaraRajnandgaon
Kallam PS
Tr. Scheme for Phase-1
Bhadrawati
Parli (PG)
Substation for SEZ Ph-II
Other ISTS/intra state sub stations
Substation for SEZ Ph-I
W3: 2GW (1GW under Intra-STS)
S3: 1.5GW
S3: 2.5GW
Sholapur SEZ (Toramba)
Wardha
Warangal
UC Lines
Tr. Scheme for Phase-3
Substation for SEZ Ph-IIIS3: 1GW
MAHARASHTRA – RENEWABLE ENERGY ZONES
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Indore
Khandwa Pool
Bhopal
Rajgarh SEZ
Khandwa SEZ
Vadodara
Dhule
Jabalpur
Bhopal
Bina
Indore
Pithampur
Khandwa
Itarsi
UC Lines
Existing LinesSubstation for SEZ Ph-II
Other ISTS/intra state sub stations
Shujalpur
S2: 2.5GW
S3: 2.5GWTr. Scheme for SEZ Ph-2
Tr. Scheme for Phase-3Substation for SEZ Ph-III
MADHYA PRADESH – RENEWABLE ENERGY ZONES
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Tuticorin Pool
Dharmapuri(PG)
Tiruvelam(PG)
Tirunelveli Pool
W1 : 500 MW
MadhugiriCuddapah
Karur PS
W1 : 2.5 GW
Pugalur(PG)
Pugalur(HVDC)
Arasur(PG)
Raigarh
N. Trissur
Somanahalli
Salem(PG)
Total REZ in SRPhase-I: 5.5 GW (Dec’21)Phase-II: 5 GW (Dec’21)Phase-III: 8 GW (Beyond Dec’21)
TAMIL NADU – RENEWABLE ENERGY ZONES
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Kurnool-III PS
W1 : 2.5 GW
W2 : 0.5 GW
S1 : 1.5 GW
Kurnool new(PG)
Cuddapah(PG)
Raichur New(PG)
Nellore(PG)
Maheshwaram (PG)Sholapur (PG)
Anantapur PS
S2 : 3.5 GW
Total REZ in SRPhase-I: 5.5 GW (Dec’21)Phase-II: 5 GW (Dec’21)Phase-III: 8 GW (Beyond Dec’21)
ANDHRA PRADESH – RENEWABLE ENERGY ZONES
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Bidar PS
S2 : 2.5 GW
Madhugiri(PG)
Maheshwaram
Gadag PS
S2 : 2.5 GW
Koppal PS
W1 : 2.5 GW
Narendra(New)
Kolhapur (PG)
Dharmapuri
Tuticorin PS
Total REZ in SRPhase-I: 5.5 GW (Dec’21)Phase-II: 5 GW (Dec’21)Phase-III: 8 GW (Beyond Dec’21)
KARNATAKA – RENEWABLE ENERGY ZONES