In this presentation, 10 most powerful HVDC (High Voltage Direct Current) transmission lines constructed in the world, sorted respectively with consideration of power rated of the lines.Only finished and in operation projects ranked here. dismantled lines, abandoned and in construction projects not qualified for this list.

1. 10 Largest HVDC
Transmission Lines
In The World
by Shayan Amani
ID : 9008463
Student of S.U.T
Prof. Dr. A.Hadji Zadeh
Winter 2014

2. In this presentation, 10 most powerful HVDC
(High Voltage Direct Current) transmission lines
constructed in the world, sorted respectively with
consideration of power rated of the lines.
Only finished and in operation projects ranked
here. dismantled lines, abandoned and in
construction projects not qualified for this list.

3. HVDC projects for long-distance transmission
have two (or rarely, more) converter stations and a
transmission line interconnecting them. Generally
overhead lines are used for interconnection, but an
important class of HVDC projects use submarine
power cables.
A back-to-back station has no transmission line
and connects two AC grids at different frequencies
or phase counts.

4. 10
2004Year:
3000Power rating
(MW):
500DC voltage (kV):
980Length of DC line
(km):
Guizhou – Guangdong I
China
converter station

5. 9
2003Year:
3000Power rating
(MW):
500DC voltage (kV):
860Length of DC line
(km):
Three Gorges - Changzhou
China
Converter transformers

6. 8
1970Year:
3100Power rating
(MW):
500DC voltage (kV):
1362Length of DC line
(km):
Pacific DC Intertie
(Path 65)
USA
Valve hall

7. 7
1984Year:
3150Power rating
(MW):
600DC voltage (kV):
785Length of DC line
(km):
Itaipu 1
Brazil
Overview of the plant

8. 6
1984Year:
3150Power rating
(MW):
600DC voltage (kV):
805Length of DC line
(km):
Itaipu 2
Brazil
Station equipments

9. 5
2010Year:
4000Power rating
(MW):
± 660DC voltage (kV):
1348Length of DC line
(km):
Ningxia - Shandong
China
Overview of the plant

10. 4
2010Year:
5000Power rating
(MW):
± 800DC voltage (kV):
1418Length of DC line
(km):
Yunnan – Guangdong
China
A transmission tower (Pylon)

11. 3
2013Year:
6400Power rating
(MW):
± 500DC voltage (kV):
1286Length of DC line
(km):
Xiluodo – Guangdong
China
Inner view of the station

12. 2
2010Year:
6400Power rating
(MW):
± 800DC voltage (kV):
2071Length of DC line
(km):
Xiangjiaba – Shanghai
China
Converter HVDC Transformers

13. 1
2012Year:
7200Power rating:
± 800DC voltage (kV)
2100Length of DC line:
Jinping – Sunan
East China
800 kV UHVDC Transformer
in comparison with a VOVLO car

14. References:
• EPRI HVDC Reference Book
• Manitoba HVDC Research Centre
https://hvdc.ca/knowledge-library/reference-material
• Siemens HVDC references
http://www.energy.siemens.com/hq/en/power-transmission/hvdc/hvdc-
ultra/references.htm
• ABB HVDC references
http://new.abb.com/systehttp://www.siemens.comms/hvdc/references
• Alstom HVDC resources
http://www.alstom.com/

15. Thanks
for your attention