HVDC Dreischluchtendamm – Changzhou
 
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Location of the two converter stations |
The HVDC Dreischluchtendamm – Changzhou is an 890 km long high-voltage direct current transmission line (HVDC) in the People's Republic of China between the Three Gorges Dam and the eastern district-free city and industrial region of Changzhou ( Chinese 常州 市 ) in Jiangsu Province . It is used to transport electrical energy from the hydropower plant on the Yangtze River to the industrial regions of China to the east. The line went into operation in 2003, was the second HVDC line in China, and the largest HVDC line in China when it went into operation. The western converter station is located 50 km from the Three Gorges Dam in Longquan , the eastern station in Zhengping near Changzhou.
The HVDC Dreischluchtendamm – Changzhou is a bipolar HVDC with an operating voltage of ± 500 kV and a transmission capacity of 3,000 MW . The inverters in the converter stations are equipped with thyristors , which can switch a maximum current of 3 kA with a blocking voltage of 7.2 kV per thyristor. In the eastern converter station Longquan 90 thyristors are used per pole and in the western converter station Zhengping 84 thyristors are used per pole. The high-voltage line runs over the Yangtze at the Wuhu overhead line crossing , which has the highest overhead line pylons in HVDC systems.
The grounding electrode at Chujiahu is also used by the HVDC Gezhouba – Shanghai .
Individual evidence
- ↑ Three Gorges - Changzhou HVDC: Ready to Bring Bulk Power to East (PDF; 60 kB): The 4th International Conference on Power Transmission & Distribution Technology , Changsha, 2003