800 kV 625 developed by the Smart Grid Research In

2022-10-18
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The ± 800 kV/6250 a UHV DC transmission converter valve developed by China Intelligent Power Research Institute successfully passed all type tests

it was learned on July 10 that the world's first ± 800 kV/6250 a UHV DC transmission converter valve developed by China Intelligent Power Research Institute successfully passed all type tests. On July 10, it was learned that the world's first ± 800 kV/6250 a UHV DC transmission converter valve developed by China Intelligent Power Research Institute successfully passed all type tests, and China's synthetic rubber production capacity reached 5.09 million tons

the transmission capacity of this converter valve is 25% higher than that of ± 800 kV/5000 a converter valve, further improving the transmission efficiency, greatly saving costs, and creating the highest flow capacity of similar products in the world. This is another major achievement in the field of DC transmission in China, which further consolidated the technology leading position of State Grid Corporation of China in this field

in recent years, relying on the national "12th Five Year" science and technology support plan and the key scientific and technological research projects of the State Power Corporation, the National Intelligence Research Institute has overcome a number of key technical problems in the field of UHV DC transmission, successfully dealt with trade protectionism, enhanced its ability to develop ± 800 kV/5000 a UHV DC converter valves. In 2014, the Institute also carried out the research and development of 6250 amp UHVDC converter valve, overcoming many technical problems such as the control of electrical loss caused by the sharp increase of current, the uniform temperature of component heat dissipation and anti electromagnetic disturbance, and once again improving the current level of UHVDC converter valve

in the next step, the multi regional cooperation of national technology research and development, production and sales is increasingly strengthened. The Intelligent Research Institute will speed up the achievement transformation and engineering demonstration and Application Research of this type of converter valve, so as to meet the company's UHV DC construction needs and provide technical support for China's larger-scale transmission of clean energy

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