On the 15th of October, the Zhalute-Qingzhou ±800KV UHVDC project completed its pre-operation trial tests, with the three converter unit HVDC (3*2500MW) came into service successfully, it is the fist UHVDC project connecting Northeast China to central China.
The project rated dc voltage is ±800KV, and its rated capacity at 10000 MW (a configuration that is becoming quite standard in the current generation of LCC-HVDC projects in China). The inverter station side of the UHVDC system is connected to two AC lines, a 500kV and an 1000kV AC system. The project is a link between the renewable energy generation centers in northeast of China and the main load centers, preventing wind curtainlment, an issue that has plagued quite a few of the wind plants, especially in the west of China.
The project starts from the Zhalute converter station in Tongliao, Inner Mongolia Autonomous Region, crossing the provinces of Hebei, Tianjin, and Shandong. The total transmission distance is 1234km and the total cost of the project is 21.1 Billion RMB(~AU$4B).
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| The path of the Zhalute - Qingzhou UHVDC line |
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| Aerial photo of the converter station and the reactive compensators |
