The Yunnan–Guangdong HVDC is a high-voltage direct current transmission system connecting Chuxiong in the Yunnan to Suidong, Zengcheng in Guangdong, China. It is the first HVDC link in the world operating at a transmission voltage of 800 kV.[1] The transmission line is operated by China Southern Power Grid. In 2007, the order to supply the system was awarded to Siemens Energy.[2] The first pole was put into operation in December 2009 with the second pole to follow in June 2010.[3]
| Yunnan–Guangdong HVDC | |
|---|---|
| Location | |
| Country | China |
| Province | Yunnan, Guangdong |
| General direction | west-east |
| From | Chuxiong |
| To | Suidong, Zengcheng |
| Ownership information | |
| Owner | China Southern Power Grid |
| Construction information | |
| Manufacturer of substations | Siemens |
| Construction started | 2007 |
| Commissioned | 2010 |
| Technical information | |
| Type | overhead transmission line |
| Type of current | Ultra HVDC |
| Total length | 1,418 km (881 mi) |
| Power rating | 5,000 |
| AC voltage | 500 kV |
| DC voltage | 800 kV |
| No. of poles | 2 |
The transmission system has a transmission capacity of 5,000 MW and a rated DC current of 3,125 A. It has a total length of 1,418 kilometres (881 mi).[4] It transmits electricity from the hydropower plants in the Yunnan to the Guangdong, including cities of Guangzhou and Shenzhen.[1]
Yunnan–Guangdong HVDC shares the grounding electrode together with HVDC Guizhou - Guangdong II at Linwu ( coordinates: 23°44′48″ N 113°17′09″E ).
See also
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References
edit- ^ a b "World's first 800 kV HVDC link goes into operation in China". Power Engineering International. PennWell Corporation. 2009-12-30. Retrieved 2011-10-05.
- ^ Siemens (2007-06-11). "China to Construct High-Voltage Transmission System Between Yunnan, Guangdong". Transmission & Distribution World. Penton Media, Inc. Retrieved 2010-01-05.
- ^ "First 800-kV HVDC Link in China Now Fully Operational". Siemens AG. Transmission & Distribution World. June 2009. Retrieved 2010-09-02.
- ^ Zhang, Donghui; Haeusler, Marcus; Rao, Hong; Shang, Chun; Shang, Tao. "Converter Station Design of the ±800 kV UHVDC Project Yunnan-Guangdong" (PDF). Siemens. Retrieved 2010-01-05.