ROSS BORDER XCHANGE OF LECTRICITY BETWEEN ANGLADESH …€¦ · systems, HVDC system control and...

US Energy Association // South Asia Regional Initiative for Energy, 1300 Pennsylvania Avenue, NW Suite 550 Box 142 Washington, DC 20004-3022

Telephone (202) 312-1230; Fax (202) 682-1682; website: http://www.usea.org; SARI/Energy www.sari-energy.org

CROSS BORDER EXCHANGE OF ELECTRICITY

BETWEEN BANGLADESH, INDIA AND SRI LANKA USING HIGH VOLTAGE DIRECT CURRENT (HVDC)

U.S. AGENCY FOR INTERNATIONAL DEVELOPMENT (USAID) WORKSHOP

CO-HOSTED WITH POWER GRID COMPANY OF BANGLADESH (PGCB)

Under the South Asia Regional Initiative for Energy (SARI/Energy) Energy Transmission Partnership and the South Asia

Transmission Utilities Regional Network (SATURN), funded by the U.S. Agency for International Development (USAID),

the U.S. Energy Association and the Power Grid Company of Bangladesh (PGCB) co-hosted a workshop of over 30

delegates from Bangladesh, India, and Sri Lanka to attend a three-day discussion focused on best practices in HVDC

planning and operations.

The workshop held in Dhaka, Bangladesh, afforded the executives the opportunity to receive a first-hand overview of each

country’s preparations for planned cross border interconnections, as well as to directly interact with some of the leading

HVDC suppliers in the world.

(above) Workshop delegates from Power Grid Company of Bangladesh, Power Grid Corporation of India, Sri Lanka Ceylon

Electricity Board and Ministry of Power and Energy, USAID/Bangladesh, and resource speakers from Siemens and ABB.

The USAID/SARI/Energy program promotes energy security in South Asia through three activities areas: (1) cross border

energy trade, (2) energy market formation, and (3) regional clean energy development. Through these activities,

SARI/Energy facilitates more efficient regional energy resource utilization, works toward transparent and profitable energy

practices, mitigates the environmental impacts of energy production, and increases regional access to energy.



PROGRAM HIGHLIGHTS

The workshop provided a valuable opportunity for executives from Bangladesh, India and Sri Lanka to jointly discuss

issues in preparation for the electricity interconnections between Bangladesh – India and India – Sri Lanka.

Key discussions included:

Fundamental concepts of HVDC

substation components

Converter operations and

performance

HVDC control and system operation

Requirements of reactive power and

control of harmonics

HVDC system control and protection

Performance of AC and DC filter and

harmonica control

Insulation coordination, reliability,

and system efficiency

The workshop included guest speakers from ABB, who were represented by four staff members from their Bangladesh,

Indian, and European offices. ABB led discussions on converter operations and performance, HVDC classic and VSC

systems, HVDC system control and protection, and requirements of reactive power and control of harmonics.

(above) Mr. Prince Jain, Design

Engineer, Power Grid Corporation of

India Ltd. presents on PGCIL’s

experience with performance of AC

and DC filter and harmonics control.

(right) Mr. SK Zadoo, General

Manager, Siemens Ltd. in India

leading discussions on key HVDC

substation components.



Bangladesh – India Interconnection

In January 2010, the governments of Bangladesh and India signed a MOU to establish a cross border electricity

interconnection. The agreement keeps the provision for Bangladesh to export power to India in the future while PGCIL was

tasked to construct, own, operate and maintain a 400 KV double circuit line to exchange 500 MW power between the two

neighboring countries soon after the system is launched. The line is approximately 130 km in length, of which 30 km

resides in Bangladesh and 100 km in India. PGCIL will recover the construction cost under a fixed rate over 35 years. The

line is intended to facilitate exchange of electricity between Bangladesh and India, allowing Bangladesh to interconnect

with India’s grid and hopefully minimize the power crisis in Bangladesh to some extent.

(right) Power Grid Company of

Bangladesh workshop delegates

(left) Mr. Gunnar Persson, Sr. Project Manager, HVDC Sales, ABB

AB, Sweden presents on converter operations and performance,

HVDC Classic and VSC.

(left) Power Grid

Corporation of

India and

members of the

Sri Lankan

delegation during

a break in the

workshop.



Keeping in view the technical considerations and reliable operation of both the systems, Baharampur (India) – Bheramara

(Bangladesh) was chosen for implementation.

The Indian part of the infrastructure will also include a 400 kV switching station at Baharampur, loop-in and loop-out of

Farakka-Jeerat 400 kV single circuit line (approximately 3 kilometers in length), and a 400 kV double circuit line from

Baharampur of India running up to Bheramara in Bangladesh (approximately 85 kilometers in length). A 500 MW HVDC

back-to-back station (400/230 kV) will be installed at Ishurdi/Bheramara in Bangladesh. Cobra (Spain) was awarded the

contract to build the transmission line and Siemens the HVDC station for Bangladesh. A2Z Ltd was awarded the Indian

portion of the 400 kV transmission line and KEC International the Behrampur substation in India.

.



Bangladesh currently faces an electricity deficit of over 1,000 to 1,800 MW on average, with only about 40% of the country

accessing electricity. Funding for the Bangladesh portion of the interconnection, totaling over $10 billion, has come from

ADB, the Government of Bangladesh, and Power Grid Company of Bangladesh. Expected completion date is late

2012/early 2013. It is hoped that the interconnection with India will provide some relief from this scenario.

India – Sri Lanka Interconnection

In recent years, Sri Lanka has tapped out the majority of its domestic energy sources, including its large hydro; however,

electricity demand continues to rise. Meanwhile, India is expanding its electricity grids, has developed multiple operational

markets to increase the efficiency, and is increasing its cross border energy trade. To meet demand and provide greater

reliability to the systems, the two countries are in the planning stages for a HVDC interconnection, which will allow Sri

Lanka to tap into cheaper sources of power generation from South Asia and allow the southern region of India to have a

back-up electricity source. This interconnection will serve to improve the load profile of both countries and provide

improved system reliability.

In 2002, under the USAID SARI/Energy program, a pre-feasibility study was conducted on the viability of a submarine

electricity interconnection between the two countries. Talks progressed between the governments and a MOU was signed

between India’s and Sri Lanka’s governments and utilities in 2010. Now, the Ceylon Electricity Board and the Power Grid

Corporation of India are jointly carrying out the feasibility study. PGCIL is handling the marine studies and an evaluation

of their own territory. Likewise, Sri Lanka is evaluating the adequacy of their power system in preparation for the

interconnection. To date, the substation and terminal layouts have been completed, and the countries are conducting a

transmission line route survey and environmental studies, and selecting the site for the HVDC station.

The proposed line is a 400kV HVDC line from Madurai, India to Anuradhapura, Sri Lanka. The India territory portion will

consist of a 150 km HVDC overhead line from Madurai to Pannaikulam on the Indian sea coast. This will connect to an

HVDC terminal at Madurai. The submarine portion will be built between Pannaikulum, India and Mannar, Sri Lanka – 127

km in length. The Sri Lankan land route will start at the seacoast area of Mannar and travel to Anuradhapura via a HVDC

overhead line 110km in length, which will then connect to a HVDC terminal at Anuradhapura.

Land development and earth filling in Bangladesh for the interconnection with India.



RESULTS

This three-day workshop included participants from the organizations of Bangladesh, India and Sri Lanka primarily

responsible for the planned electricity interconnections. Delegations from India and Sri Lanka traveled to Dhaka,

Bangladesh, where they were hosted by Power Grid Company of Bangladesh to discuss High Voltage Direct Current

(HVDC) and its applications to the cross border energy trade. The workshop promoted an improved understanding of

power electronic equipment, how these devices can be applied, and how they interact with the rest of the power system,

with consideration for both technical and economic factors. The training program was followed by a brief site visit to

PGCB’s national dispatch center, outside Dhaka. Over the course of the workshop, the delegates received training in on

power system and transmission technology to promote regional uniformity and cooperation in power transmission in South

Asia, as well as to lead to greater confidence between the countries and utilities.

Delegates were providing training on the latest best practices in:

Applications of conventional and voltage-source converter HVDC transmission

Power converter performance

HVDC system integration

Variable frequency transformer (VFT) equipment and applications

FACTS devices for reactive compensation – static VAR compensators (SVC) and static compensators (STATCOMS)

Power electronics for series compensation

(left & below) Proposed HVDC

interconnection between India and Sri

Lanka

Interconnection options under

consideration:

1.) 500MW Mono pole – stage I

500MW – stage II

2.) 2x500MW – Stage I

3.) 2x250MW Bi-pole – Stage I

2x250MW – Stage II

Conventional and VSC



Specific outcomes of the exchange are listed below:

Siemens provided the delegates with a project design and planning Gantt diagram for use in their project planning.

The diagram offered an organizational chart and execution sub units, including an overview of the vendor’s project

management, with a “CEO” for each project, project management subunits, installation managers, etc. The Gantt

diagram can facilitate ensuring as smooth and seamless process as possible, to reduce errors and overhead expenses.

Siemens provided strong recommendations to the delegates that they ensure reliable availability and high quality of

equipment that is procured. The speaker also recommended the utilities conduct a quality assurance of procured

equipment.

Siemens led a discussion on the importance of quality converter and inverter station design, including the

benefits of using high-quality prefabricated buildings. The discussion included building design based on

recommendations for longevity and structural support. Prefabricated buildings normally have a guaranteed life of

15 years, but the utility needs them to have a life of 40+ years. So, construction of these buildings is very important

because if the utility experiences constructional issues, the whole project has to be shut down and fixed, which leads

to large cost overruns.

Siemens exposed the delegations to the latest valve hall designs, including where the unit is suspended from the

ceiling to handle seismic fluctuations. Additionally, the control room is designed with a small window overlooking

the valve hall so that quick and easy monitoring can be done without having to enter the room and disturbance and

causing tripping.

Siemens stressed the need for the vendor and utility to build a strong relationship so that the vendor has the

necessary comfort level to provide constant feedback to the utility, and the utility is comfortable enough to ask for

questions whenever necessary. Power Grid Company of Bangladesh especially agreed with the value of this.

At the request of the Indian and Sri Lankan delegates, ABB provided a presentation on current best practices for

submarine interconnections for potential application in the India-Sri Lanka interconnection.

The Bangladesh and Indian delegations held a number of informal discussions to “iron out” issues leading to the

interconnection, which led to a better understanding of what contingencies each country’s system had planned for

and, therein, greater confidence in the others preparations.

Power Grid Company of Bangladesh hosted Power Grid Corporation of India on a site visit to a HVDC

construction site to try to resolve some outstanding issues.

Siemens held one-on-one planning meetings with PGCB on the interconnection project.

In response to an expression of interest from the Bangladesh delegation in underground cable systems, ABB

presented on some current best practices in the field. ABB recommended the use of “HVDC Light” for any

submarine interconnections, and even for most above-ground transmission lines. HVDC Light allows for

underground (or undersea) cabling and, therefore, somewhat easier permitting, lower project cost, short installation

and implementation time, and low operation and maintenance cost. HVDC Light offers voltage and reactive power

control, loss reduction in a connected AC network, increased transfer capability in AC lines, connection in weak

network points, and passive load operation. HVDC Light is also environmentally adapted by short permitting time,

a smaller footprint and lower profile of converters, oil free cable, reduced magnetic fields, and "invisible"

transmission. In addition, given that the cables for HVDC Light are much lighter in weight compared to HVDC

classic, it is better suited to submarine installation.

On the final day of the workshop, the speaker from Siemens congratulated Power Grid Corporation of India on their

superb expertise and efforts to date on cross border interconnections, and encouraged them to share their

knowledge with their peers from Bangladesh and Sri Lanka.

Ceylon Electricity Board had meetings with Bangladesh Power Development Board to discuss CEB potentially

hosting training for BPDB linesmen.

The Ministry of Power & Energy representative presented at an Asian Development Bank-sponsored meeting (that

was also taking place in Dhaka at the time of this workshop) on Sri Lanka’s work within the solar energy sector.



WORKSHOP PARTICIPANTS

BANGLADESH:

1. Mr. Md Abu Taher, Chief Engineer (PSC), Bangladesh Power Development Board

2. Mr. Md. Abul Kashem Mahmod, Executive Engineer, System Planning, Bangladesh Power Development Board

3. Mr. Nur Mohammad Samsuzzoha Kabir, Sub-Divisional Engineer, Design & Inspection, Bangladesh Power

Development Board

4. Mr. Md. Rafiqul Islam, Deputy General Manager, Design, Power Grid Company of Bangladesh

5. Mr. Chowdhury Alamgir Hossain, Deputy General Manager, SPMC, Power Grid Company of Bangladesh

6. Mr. Md. Abdus Salam, Deputy General Manager, TMCC, Power Grid Company of Bangladesh

7. Mr. Arun Kumar Saha, Deputy General Manager (I/C), Planning, Power Grid Company of Bangladesh

8. Mr. A.K.M. Gause Mohiuddin Ahmed, Manager, SSD, Power Grid Company of Bangladesh

9. Mr. Md. Alamgir Hossain, Manager, Grid Interconnector Project, Power Grid Company of Bangladesh

10. Mr. Q.M. Shafiqul Islam, Manager, GMD – Ishurdi, Power Grid Company of Bangladesh

11. Mr. Md. Jamil Ahmed, Manager, SPMD-1, Dhaka, Power Grid Company of Bangladesh

12. Mr. Md. Rafiqul Islam, Manager, SPMD-2, Dhaka, Power Grid Company of Bangladesh

13. Ms. Kaniz Fatema Khondaker, Deputy Manager, Design, Power Grid Company of Bangladesh

14. Mr. Sayed Shahriar Abdullah, Deputy Manager, Design, Power Grid Company of Bangladesh

15. Mr. Md. Abdul Hamid Rana, Deputy Manager, Design, Power Grid Company of Bangladesh

INDIA:

1. Mr. Vikram Bhal, Chief Manager, PowerGrid Corporation of India Ltd.

2. Mr. Mange Ram Chauhan, Chief Design Engineer, PowerGrid Corporation of India Ltd.

3. Mr. Mohammad Arshad, Design Engineer, PowerGrid Corporation of India Ltd.

4. Mr. Pradip Kumar Chatterjee, DGM (Engg-S/S), PowerGrid Corporation of India Ltd.

5. Mr. Prince Jain, Design Engineer, PowerGrid Corporation of India Ltd.

6. Mr. Praveen Ranjan, Resident Project Manager, India-Bangladesh Inter-connector Project, Power Grid Corporation

of India Ltd.

SRI LANKA:

1. Mr. D.A.U. Daranagama, Additional Secretary (Planning & Development), Ministry of Power & Energy

2. Mr. B.N.I.F. Wickramasooriya, General Manager, Ceylon Electricity Board

3. Mr. R.H.R. Lokubalasooriya, Additional General Manager (Tr.), Ceylon Electricity Board

4. Mr. D.K.B.S. Thilakasena, Additional General Manager (CS), Ceylon Electricity Board

5. Mrs. T.A.K. Jayasekera, Chief Engineer (Tr. Planning), Ceylon Electricity Board

6. Dr. P.N. Fernando, Consultant (observer)

For more information, contact Sarah Blanford at [email protected] or visit www.sari-energy.org.

mailto:[email protected]

http://www.sari-energy.org/

ROSS BORDER XCHANGE OF LECTRICITY BETWEEN ANGLADESH …€¦ · systems, HVDC system control and...

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