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26th November 2010
Automation Industry Association Annual Meet 2010Vashi, Navi Mumbai
Automation & Operational Excellence -
Tata Power case study
Mr. Jacob Joseph
About Tata Power
Challenges in Transmission and Distribution
Tata Power Automation Landscape
Way forward
Thrust Areas – Generation, Transmission & Distribution
Recap
Outline
About Tata Power
Tata Power
Tata Power is 100 years old India’s largest integrated private power utility with operations spanning across the value chain – Fuel & Fuel Logistics, Power generation (conventional & renewable), Power transmission,distribution, Power Services and Power Trading
Tata Power has a first of its kind joint venture with Power Grid Corporation of India for the 1200 km Tala Transmission Project
Expanding its horizon beyond India in countries like Australia, Singapore, Indonesia, Netherlands, Bhutan, Nepal, Africa & the Middle East
Generation Transmission & Distribution Retail
Tata Power | Business Portfolio
Generation2233 MW
Transmission Network
1110 Kms
Distribution Network
1715 Kms
RSS DSS CSS18 13 403
Consumers100,000
Energy Served15,946 MUs
Projectsin various
stages
14,344 MWUMPP
Power Services & Power Trading
Renewable Energy
Leading private utility with 200 MW of installed wind capacity
India’s first 2 MW turbine installed at Visapur, India
Plans to add 500 MW over the next 3 years
We aspire to have a 2 GW installed wind capacity by 2017
Wind
3 MW grid connected pilot plant on Solar PV under progress
Actively pursuing Concentrated Solar, Solar Thermal and Rooftop Solar options
Exploring opportunities up to 300 MW based on solar technology
Floating PV Solar
Equity stake in Geodynamics for enhanced geothermal technology
Participating in bid for 200 MW Indonesian geothermal opportunity
MoU with Gujarat Govt. (India) to explore geothermal potential
Solar
Geothermal
Challenges in Transmission and Distribution
Challenges in Transmission & Distribution
Capacity building, network planning and operational efficiency
Ageing infrastructure
Regulatory mandates
AT&C loss reduction, Energy accounting & Auditing
Business process efficiency, Reducing manual processes
Increasing pressure on service reliability (e.g. CAIDI, CAIFI)
Metering, Billing and Collection efficiency
Significant change in network dynamics with distributed energy resources
Open Access, Power Trading, Power Exchanges, UI, ABT, Banking ofElectricity Managing peak load requirements
Customer Engagement & Transformation
Regulatory Mandates
Standards of Performance
Supply Code
Consumer Grievance
Period of Giving SupplyQuality of SupplyPower Supply Restoration timeMetering and ReconnectionReliability Indices
Approval of Schedule of Charges for connectionQuantum of Security Deposit specifiedMetering Arrangements to be as per the codeMetering and ReconnectionSpecification of Billing Methodology
Methodology to address Consumer Grievance by the Forum specifiedAppeal to Ombudsman in case of non redressal of the grievance by the Forum
Regulatory Mandates
Trans and DistOpen Access
Tariff Regulations
Incentive
Non discriminatory Transmission open access introduced Open access permitted for consumers >1 MVA by April 2007Methodology for determination of surcharge being finalized
For Thermal PLF > 80% @ 25 ps per KwhFor Hydro if Capacity Index > 85% , 0.65 % of the Fixed ChargeFor Transmission, incentive @1.02% of fixed charges for availability > 98%
Power Purchase by Distribution Licensee and procurement price to be approved by MERCFor Hydro if Capacity Index > 85% , 0.65 % of the Fixed ChargeFor Transmission, incentive @ 1.02% of fixed charges for availability > 98%
Tata Power Automation Landscape
Tata Power Automation Landscape
Plant Automation – Each of the generating stations have its own DCS
Transmission – Unified SCADA System, Nodal SCADA System
Distribution - Distribution Automation System, Metering, AMR enabled meter
Enterprise Resource Planning (ERP) system SAP to manage various business processes (e.g. HR, Finance &, Accounts, Procurement etc).
Oracle Hyperion for managing Balanced Score Card
Challenges in Automation Implementation
Adoption of Open, Platform-independent & Scalable architectureAdaptive communication & protection systemData collaboration, communication and interoperabilityNetwork & Cyber Security and role-based accessDisaster Recovery and Continuity PlanningNetwork Management and AnalyticsNeed of standardization – Interpretation by utilities and vendors is very differentVendor independent configuration toolsIntegration platforms supporting technological options for legacy & new systems, business logic & SW deploymentIntegration of renewable sources
Technology Enables Improvement
Technology enables improvement Availability ReliabilityReduction in O& M
Cost
Reduction in commercial
losses
Increase electricity
Supply
Customer service
enhancement applications
Automated meter reading (AMR)
Remote disconnection & Reconnection
Outage monitoring and evaluation
SCADA
DSM and SM
Renewable Energy
Distributed, standby and off Grid generation
Time-of-use Tariff
Islanding
Capacitor Control
Demand Responses
Phasor Measurement Unit
Load Control Centre Automation
Load Control Centre - Tata Power
Load Control Centre - Functions
Nerve center for operation, Control, Monitoring and Planning of power systemLoad forecasting, generation and outage planning of hydro and thermal stations, power purchase from other constituentsPreparation of long-range and medium-range operation plan including outage coordination for own system and in consultation with the load control center of the neighbouring system.Preparation of daily and hourly operating plansEnsures uninterrupted power supply to consumer by real time load generation balance, network availability, planning equipment outages considering contingencies.Monitors system security in terms of outages, generation, reserves and loading on transmission lines / transformersInitiates and monitors emergency measures like low frequency operation, load shedding and system separation etc in line with accepted policies.Energy balance and auditing of energy injection into the grid and sale to consumers.
EMS Applications – Load Control Center
Optimized monitoring, control and asset management of large electrical network is achieved using real-time data and following EMS applications:
State Estimation
Contingency Analysis
Security Constrained Despatch
Voltage-VAR Control
Power Flow Analysis
Short Circuit Analysis
Automatic Generation Control
Economic Despatch
Optimal Power Flow
Load Shedding
Transmission Automation
Unified SCADA Architecture
Tata Power Automation WAN
Tata Power Automation WAN
NSS - 1NSS WS IED
Local Automation WANLocal Automation WAN
SAT - 1WS IED
SAT - 2WS IED
NSS - 2NSS
SAT - 3WS IED
SAT - 4WS IED
WS IED
Local Automation WANLocal Automation WAN
NSS - 3NSS
SAT - 5WS IED
SAT - 6WS IED
WS IED
Local Automation WANLocal Automation WAN
NSS - 6NSS
SAT - 11WS IED
SAT - 12WS IED
WS IED
Local Automation WANLocal Automation WAN
NSS - 8NSS
SAT - 16WS IED
WS IED
Local Automation WANLocal Automation WAN
Unified SCADA System # 1
Central Control Room
Communication Equipment
Unified SCADA System # 2
Operator TrainingSimulator # 1
Operator Training Simulator
Operator TrainingSimulator # 2
NSS - 7NSS
SAT - 13WS IED
SAT - 14WS IED
WS IED
Local Automation WANLocal Automation WAN
SAT - 15WS IED
Note: NSS - Nodal SCADA System, SAT – Satellite Station, WS – Workstation, IED – BCU/BCPU/RTU
NSS - 4NSS WS IED
Local Automation WANLocal Automation WAN
SAT - 7WS IED
SAT - 8WS IED
NSS - 5NSS WS IED
Local Automation WANLocal Automation WAN
SAT - 9WS IED
SAT - 10WS IED
Features:Platform and hardware independent systemOpen & modular architecture, incremental expansion possibleUnified SCADA with 2,00,000 I/O points8 Nodal Stations as backup to Unified On line synchronisation between Unified and Nodal SCADA
BenefitsCentralised operation, reduction in manpowerSingle source of dataReduce response time to operate the electrical gridAutomatic Database Replication / Change ManagementGeographical and schematic visualization of the whole electrical infrastructure on one screen
Unified SCADA – Benefit Accrued
Distribution Automation
Distribution Automation System
(Application Servers, Database Server & Operator Work Stations)
Colour Printer
RTUs at CSS
RTUs at CSS
Alarm/Event Printer
ZONAL CONTROL Centre 2
ZONAL CONTROL Centre 4
GPS Clock
CDMA CORETTML
Consumer Substation Automated (CSS) – 237Distribution Substation (DSS) - 13
RTUs at CSS RTUs at CSS
SMS -Maint Engr
RTUs at CSS
RTUs at CSS
ZONAL CONTROL Centre 5ZONAL CONTROL Centre 3
TPCLAN/ WAN
R
Central Control Room
CDMAIEC -104 PROTOCOL
ZONAL CONTROL Centre 1
Distribution Automation System
Efficient management of power network from Centralized and Zonalsystem
Expedites fault detection, fault location and service restoration
Reduction in operating and maintenance costs
Improvement in performance indices e.g. CAIDI, CAIFI, SAIDI etc.
Improved demand, load, maintenance cycles, outage management
Improved use of existing grid assets to reduce grid congestion and bottlenecks
Extension of asset life
Optimization of decision making
Automated Meter Reading
Automated Meter Reading / Advanced Metering Infrastructure
MM M M
MM M MMeters with Proprietary or
Open protocol
MDAS
MDAS (Others)
Meter Data Management
System
Meter Data
Archival
Customer PortalsSAP
Middleware
Firewall
Interface for Manual
Readings
Firewall
Interface to GIS, PI,
DMSExisting System
Tata Power WAN
Managed Communication
Network
Automated Meter Reading / Advanced Metering Infrastructure
Automatic Meter Reading for accurate billing and reduction in cycle time.MIS reports for proper planning, monitoring, decision supportAbility to detect tamper events and outage occurrences, reduction in lossesConsistent and granular data for improved accuracyUser defined data collection period, suitable for Time of Day tariff.Web Portal for CustomerSystem capable for implementing AMI functions, disconnection / reconnection
Performance Monitoring
DCS
PIServer (s)
SAPApplications
AMR / ABT MeteringServer (s)
MIS
Other Enterprise Applications
BSCStaging
Database/Oracle
Open Systems
OPC ConnectivitySCADA
Dash Board
Open Systems
OPC Connectivity Local Excel / web based
applications used by Divisions
Dash Board
OT Systems IT Systems
MANUALENTRY
RDBMSConnectivity
Performance Monitoring System
MIS at Tata Power
PI System Installed at all the generating stations
Central PI Server installed for Corporate MIS purpose
Integration of Assets and technologies from various vendors
Performance parameters created on Divisional PI servers and transferred to central PI server for MIS reporting
MIS software with make & check arrangement for automation of MISData flow
Parameters available on Central PI server transferred to IT system on daily basis for reporting
Web based dashboard
PI system a single solution for all the MIS worries of the organization
Web Based Dashboard
Web Based Dashboard
Performance Measures
CAIDICustomer Average Interruption Duration Index
CAIDI = Duration of Forced interruptions in the month / No. of Forced interruptions in the month
24 23.9
96
19.2
61
24.1
87
25.9
77
77.7
41
30.7
80
1020304050607080
CA
IDI o
f Dire
ct
Con
sum
ers
(in m
nts)
Year
10-
11Pl
an May
July
Sept
embe
r
Fiscal Year 10-11
CAIDI of Direct Consumers (in Mnts)
Year 10-11 Plan April May June July August September
28.775
26.98
25.182
24
27.549
25.123
202122
2324252627
282930
CA
IDI o
f Dire
ct C
onsu
mer
s (in
m
nts)
2007
-08
2008
-09
2009
-10
Year
10-
11Pl
an
Aug
ust
Act
ual t
illSe
p 10
-11
Fiscal Year 10-11
CAIDI of Direct Consumers (in Mnts)
2007-08 2008-09 2009-10 Year 10-11 P lan A ugust A ctual t ill Sep 10-11
CAIFICustomer Average Interruption Frequency Index
CAIFI = Number of Forced interruptions in the month / No. of Customers Affected in the month
2.0
1.2
1.6
1.0 1.0 1.01.1
00.20.40.60.8
11.21.41.61.8
2
CA
IFI o
f Dire
ct C
onsu
mer
s (in
no
s.)
Year
10-
11Pl
an Apr
il
May
June
July
Aug
ust
Sept
embe
r
Fiscal Year 10-11
CAIFI of Direct Consumers (in No.)
Year 10-11 Plan April May June July August September
2.9683.039
2.432
2.0001.872
1.982
1.5
2
2.5
3
3.5
CA
IFI o
f Dire
ct C
onsu
mer
s (in
nos
.)
2007
-08
2008
-09
2009
-10
Year
10-
11Pl
an
Aug
ust
Act
ual t
illSe
p 10
-11
CAIFI of Direct Consumers (in No.)
2007-08 2008-09 2009-10 Year 10-11 Plan August Actual till Sep 10-11
SAIFISystem Average Interruption Frequency Index
SAIFI = Number of Forced interruptions in the month / No. of Customers Served in the month
1.75
0.353 0.4110.251
0.158 0.113 0.1090.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
1.9
SAIF
I of D
irect
Con
sum
ers
(in
nos.
)
Year
10-
11Pl
an Apr
il
May
June
July
Aug
ust
Sept
embe
r
Fiscal Year 10-11
SAIFI of Direct Consumers (in No.)
Year 10-11 Plan April May June July August September
2.28
2.01
1.766 1.750
1.286 1.2551.5
2
2.5
SAIF
I of D
irect
Con
sum
ers
(in n
os.)
2007
-08
2008
-09
2009
-10
Year
10-
11Pl
an
Aug
ust
Act
ual t
illSe
p 10
-11
SAIFI of Direct Consumers (in No.)
2007-08 2008-09 2009-10 Year 10-11 Plan August Actual till Sep 10-11
SAIDISystem Average Interruption Duration Index
SAIDI = Duration of Forced interruptions in the month / No. of Consumers Served in the month
42
8.462 7.9246.068
4.11
8.7586.421
0.1
5.1
10.1
15.1
20.1
25.1
30.1
35.1
40.1
45.1
SAID
I of D
irect
Con
sum
ers
(in
mnt
s)
Year
10-
11Pl
an Apr
il
May
June
July
Aug
ust
Sept
embe
r
Fiscal Year 10-11
SAIDI of Direct Consumers (in mnts.)
Year 10-11 Plan April May June July August September
65.599
54.379
44.33142.000
35.322
41.743
20
30
40
50
60
70
SAID
I of D
irect
Con
sum
ers
(in m
nts)
2007
-08
2008
-09
2009
-10
Year
10-
11Pl
an
Aug
ust
Act
ual t
illSe
p 10
-11
SAIDI of Direct Consumers (in mnts.)
2007-08 2008-09 2009-10 Year 10-11 Plan August Actual till Sep 10-11
Fiscal : 10-11
Availability of all OH Lines : in %
Availability of all OH Lines : in %
Fiscal : 10-11
Way Forward
Thrust Areas
…and adaption of Smart Grid technologies
TransmissionIntelligent Network Control with Smart IslandingReactive controlIEDs integration with SCADA system
DistributionPower Quality ManagementDemand Side ManagementCustomer Service & EngagementAutomatic Metering Infrastructure
GenerationPower sale / InterchangeUI monitoring & ControlControl & Integration of renewable & Distributed Generation
Recap
Challenges in Transmission and DistributionChange in Energy MarketJourney of Automation in Tata PowerWay forward
To be the most admired Integrated Power
and Energy Company delivering
sustainable value to all stakeholders
Vision Accomplishment
Jacob JosephDeputy General Manager
Electrical Testing & AutomationThe Tata Power Company Limited
Trombay, ChemburMumbai 400 074 (India)[email protected]
+91-22-6717 5301+91-9223 332364