7/29/2019 Grid-Management.pdf

1/2

Grid Management

Grid Management is carried out through a hierarchial control philoshophy using Supervisory

Control and Data Acquisition(SCADA). For this purpose POWERGRID has established state-of-

the-art Load Despatch Centres with apex establishment, National Load Despatch Centre(NLDC) at

Delhi and five(5) Regional Load Despatch Centres as below:

Eastern Region Load Despatch Centre, Kolkatta

North Eastern Region Load Despatch Centre, Shillong

Northern Region Load Despatch Centre, New Delhi

Southern Region Load Despatch Centre, Bangaluru

Western Region Load Despatch Centre, Mumbai

Establishment of National Grid

The objective of Power Grid Corporation of India Ltd is to create a strong and vibrant NationalGrid in the country to ensure the optimum utilization of generating resources, conservation of an

eco-sensitive right of way and the flexibility to accommodate the uncertainty of generation plans.

With the modernisation of RLDCs and implementation of various inter-regional links, inter-

regional power exchange has grown manifold. During FY 2007-08, about 43,000 MUs of inter-

regional energy transfer was facilitated--an increase of about 13% compared to the previous year(about 38,000 MU). Growth of inter-regional power exchange has helped in meeting more demand

in energy deficit regions besides achieving overall economy. Inter-regional power transfer capacity

of the National Grid has been enhanced to about 17,000 MW in FY 2007-08. Four major power

regions of the country namely, North-Eastern, Eastern, Western and Northern are now operating asone synchronous grid (same frequency). Southern Regional grid is connected to this synchronous

grid through HVDC links.

A transmission plan has also been evolved for strengthening the regional grids and to support the

generation capacity addition program of about 78,000 MW during XI Plan. In line with the

perspective plan, various inter-regional transmission schemes have been undertaken forimplementation by POWERGRID.

Several milestones have been achieved by The Power Grid Corporation of India Ltd as a part of the

development of the National Grid such as the implementation of Asias longest Talcher-KolarHVDC Bipole link including its upgradation, Sasaram HVDC back-to-back link, 400 kV D/C

Synchronous interconnection between Eastern and Western Region including series compensation,

Augmentation of Gazuwaka HVDC, Muzaffarpur-Gorakhpur400 kV D/c line under TalaTransmission System, Agra-Gwalior 765 kV S/C line (operating at 400 kV), Patna-Balia 400 kV

D/c line, Biharshariff-Balia 400 kV D/c line, etc. Establishment of the ultimate National Grid is on

fast track and a number of projects are under implementation/ planned which would enhance Inter-regional power transfer capacity of the National Grid to more than 28,000 MW by year 2012.

7/29/2019 Grid-Management.pdf

2/2