ROLE OF THREE GORGES - CHANGZHOU HVDC IN INTERCONNECTING CENTRAL AND EAST CHINA

摘要

The Three Gorges - Changzhou ±500 kV DC Transmission Project is an integral part of the Three Gorges Hydroelectric Power Project. The DC transmission will be used to transmit the bulk power generated by this project to the Shanghai area in East China. The project will interconnect the central power region of China, to which the hydroelectric power plant will be connected synchronously, to the eastern power region of China. The power will be transmitted towards the east during the peak generation period and towards the centre when water needs to be conserved in the dam reservoir. The 3000 MW rated power will be transmitted to a distance of 860 km on one single bipolar DC line at ±500 kV. The paper describes the project's role in interconnecting power regions and specific benefits of this project, which is scheduled to be commissioned in 2002-2003.