NORTHERN REGIONAL LOAD DISPATCH CENTERNORTHERN REGIONAL LOAD DISPATCH CENTER

11stst June 2004 June 2004

Shri P. M. SayeedShri P. M. SayeedHon’ble Minister of PowerHon’ble Minister of Power

Govt. of IndiaGovt. of India

WELCOMESWELCOMES

POWER GRID CORPORATION OF INDIA LTD.POWER GRID CORPORATION OF INDIA LTD.

RLDC::BrainGeneration ::Heart

Sub-Transmission:: Sub Arteries

Transmission:: Main Arteries

Distribution: Capillaries

POWER SYSTEM::HUMAN BODY

HEART GENERATION

72 Beats/Minutes 50 Cycles/Seconds

Stress/AnxietyHeart Beat Deviation

Load-Gen.-MismatchFrequency Deviation

BRAIN LOAD DESPATCH CENTRE

Controls the Body Function and keeps the critical parameters like temp, BP, Sugar level etc within limits

Controls the Power System and keeps critical parameters like Voltage, frequency, MW, MVAR etc within limits

Uses sensors like Eyes Ears, Skin, Tongue, Nose for data collection

Uses Sensors like Transducers, Relays, RTUs etc. for data collection

Uses Nervous system for communication

Uses PLCC, Fibre Optics, Microwave for communication

MAIN ARTERIES TRANSMISSION

Pumps blood from Heart to the Sub-Arteries throughout the Body

Transfers Power from Generation to Sub-transmission throughout the Country

SUB- ARTERIES

SUB- TRANSMISSION

Deliver Blood from Main Arteries to each and every Body Part

Deliver Power from Bulk Transmission points to every part of the Grid.

CAPILLARIES

DISTRIBUTION

Actual extraction of oxygen from blood takes place

Actual consumption of electricity occurs

Regional Grids of India Regional Grids of India

Total Capacity = 108,820 MWTotal Capacity = 108,820 MW

Inter Regional LinksInter Regional Links

Present IR CapacityPresent IR Capacity= 8,500 MW= 8,500 MW

By the year 2012By the year 2012= 30,000 MW= 30,000 MW

500 MW500 MW1200 MW1200 MW

1000MW1000MW

2000MW2000MW

500 MW500 MW

500 MW500 MW

RTU RTU RTU

SUB LDC SUB LDC SUB LDC

SLDC SLDC SLDC

ERLDC

WRLDC NRLDC SRLDC

NERLDC

NLDC

32 Nos.

51 Nos.

1160Nos.

Unified Grid OperationUnified Grid Operation

5 Nos.

NationalLevel

RegionalLevel

State HQLevel

Group / Distt Level

Plant / Sub-Station Level

Functions Of RLDCFunctions Of RLDC

Apex Body For Integrated Grid Operation

Responsible for Optimum Scheduling and Dispatch of Electricity

Keep Accounts Of Electricity Transmitted Through Grid

Supervise and Control The Inter – State Transmission System

Ensure Security and Economy In Operation as per the Grid Standards and the Grid Code

Establishment of Modern RLDCsEstablishment of Modern RLDCsHas Resulted Into:Has Resulted Into:

Considerable Betterment of System Parameters viz., Frequency & Voltage in spite of Minimal Generation Addition

Merit Order Operation, Leading to Overall Economy

State-of-the-art technology in grid operation by introduction of ULD & C Schemes.

Introduction of ABT (Availability Based Tariff), linked to frequency variation

Transparency in grid operation

Quantum leap in intra and Inter Regional Power Exchange and Trading

Infused Grid Discipline

POWERGRID’s POWERGRID’s DiversificationDiversification

intointoTelecomTelecom

To utilize spare capacity of ULDC schemes and maximize return on its transmission infrastructure, POWERGRID decided to diversify into Telecom Through an incremental investment

Telecom networks on Transmission Infrastructure Sturdy & secure

Rodent menace free

Vandalism proof

POWERGRID’s Diversification into TelecomPOWERGRID’s Diversification into Telecom

Only utility in the country providing

overhead fibre optic cable for telecom

networks

DWDM/SDH equipment deployed

Scalable to Terabit Capacity

Obtained IP-II license in Jan 2001 and ISP

Category-A license in May 2003

POWERGRID’s Diversification into TelecomPOWERGRID’s Diversification into Telecom

All India Fibre Optic Network of 20,000 kms, spread over 60

cities including all Metros & major cities

Links under commercial operation

Delhi-Lucknow -Mumbai

Delhi-Ambala-Chandigarh-Shimla-Jallandar-Jammu

Delhi- Jaipur

Ahmedabad-Mumbai-Pune

Mumbai-Hyderabad-Bangalore-Cochin

Within NER

Maintaining availability of 100% on overhead OFC network

POWERGRID’s Broadband NetworkPOWERGRID’s Broadband Network

Complete network to be in place by 2004

Chennai June, 2004

Allahabad, Kanpur, Agra June, 2004

Kolkatta, NER June, 2004

Trivandrum Sept, 2004

POWERGRID’s Broadband NetworkPOWERGRID’s Broadband Network

Legend:

Links under operation

Links under Implementation

NEW DELHI

Lucknow

KOLKATA

MUMBAI

HYDERABAD

CHENNAIBANGALORE

Ahmedabad

Bhilai

Kanpur

Allahabad

Chandigarh

Shimla

Jaipur

Vijayawada

Vishakapatnam

Pune

Madurai

Trichy

Agra

Jammu

Patna

Nagpur

Bhopal

Cochin

Trivandrum

Agartala

ShillongImphal

KohimaGuwahati

Bhubaneswar

Meerut

Siliguri

Link to Bhutan

Durgapur

Srinagar

Bhuj

Itanagar

Aizwal

Jaisalmer

Jamnagar

Telecom Backbone Network Telecom Backbone Network

Overhead Fibre Optic Cable InstallationOverhead Fibre Optic Cable Installation

ACSR STRANDS

ALUMINIUM TUBE

FIBRE

OPGWOPGW

Customer BaseCustomer Base

NIC(GOI)

ERNET(GOI)

STPI(GOI)

ESTEL(ISP)

Fidelity (Call Centre)

GLIDE(ISP)

Bharti infotel (NLD)

Bharti Cellular Airtel

VSNL, (ILD/NLD)

Data Access, (ILD)

Daksh, (Call Centre)

Convergy’s,(Call Centre)

Spectranet (ISP)

HCL Infinet (ISP)

ExattNet(ISP)

Hutchission Essar (Cellular)

Thank You

Deviation Of Frequency From Normal Band of 49.0-50.5 Hz

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

1996-97 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04

% O

f Tim

e

Improvement of grid voltage recorded at Dadri 400 kV bus

330

340

350

360

370

380

390

400

Vol

tage

in k

V

Prior To ABT & RLDC Administration

After ABT & RLDC Administration

All India Projected Demand Growth Vs Actual Generation Addition

5235 5333

4195

3209

1634

3546

5647

4816

0

1000

2000

3000

4000

5000

6000

2000-2001 2001-2002 2002-2003 2003-2004

Year

MW

Projected Demand Growth Actual Generation Addition

Growth Of Inter Regional Exchanges

8230

13000

22500

9730

7350

0

5000

10000

15000

20000

25000

1999-2000 2000-2001 2001-2002 2002-2003 2003-2004

Year

MU

IR Exchanges

ULD & C PROJECT: OBJECTIVESULD & C PROJECT: OBJECTIVES

To haveTo have• Greater and deeper visibility of the power system Greater and deeper visibility of the power system

under controlunder control

• Better communication and co-ordination between Better communication and co-ordination between control centers control centers

• Effective management of grid parameters viz. Effective management of grid parameters viz. frequency, voltage etc. and better grid security frequency, voltage etc. and better grid security through various SCADA/EMS features resulting in through various SCADA/EMS features resulting in betterbetter

Operations schedulingOperations schedulingOperations monitoring and controlOperations monitoring and controlPower system analysisPower system analysis

• A real time environment for dispatcher trainingA real time environment for dispatcher training

AVAILABILITY BASED TARIFF

(A) CAPACITY CHARGE

(B) ENERGY CHARGE

(C) ADJUSTMENT FOR DEVIATIONS (U I CHARGE)

Where

(A) = a function of the Ex-Bus MW availability of Power Plant for the day declared before the day starts x SEB’s % share

(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)