What are the advantages of UHV technology?

Report: In the world energy field, UHV grid is still a young member. However, this “young man” is strong, full of vitality, and represents hope and future. Since the “Eleventh Five-Year Plan”, electric power technology has accelerated innovation. In 2008 and 2010, China again established a 1000-kV AC power transmission project linking North China and Central China power grids and Xiangjiaba-Shanghai, Yunnan-Guangdong ±800 thousand. Volt DC transmission project. As the world’s most advanced transmission technology, where is its advantage?

First, large-capacity transmission of electricity over long distances. The transmission power of 1000 kV AC UHV is 4 to 5 times that of 500 kV AC, and the economic transmission distance is 3 times that of 500 kV AC. The Southeastern Shandong-Nanyang-Jingmen 1000 kV UHV AC pilot demonstration project built by the State Grid Corporation of China has been in operation for more than five years, and the cumulative transmission capacity has exceeded 50 billion kWh. Every summer, during the wet season, hydropower is sent from Huazhong to North China, and it is transferred to a dry area. Thermal power is sent from North China to Central China. This has enabled the north and the south to "mutually support each other," and has eased the contradiction between power supply and demand during the dry season in Central China.

Second, make overall use of environmental capacity and optimize the layout of coal and electricity. Before the commercial application of UHV technology, the distance that the grid transmitted power was relatively limited. The location of a power plant is generally in the load center. The more economically developed and densely populated, the more the coal-fired power plants are built and the greater the density. An average power plant of 10 kilometers from Nanjing to Zhenjiang, Jiangsu Province, has air pollution exceeding 5 times the national average. UHV power transmission, although not necessarily able to reduce emissions in power generation, but the power plant built in western coal-enriched areas, can effectively use the western environmental capacity, and the intensive development of coal pollution level is also lower than the decentralized development.

Third, accelerate the development and utilization of wind energy and solar energy. Accelerating the development of new energy sources can effectively improve the energy structure. New energy sources such as wind power and solar energy in China are concentrated in the northwest, northeast, and north of northern China. UHV can transfer the wind power and photovoltaic power generated in these areas to the central and eastern regions, and realize that “electricity comes from afar and comes to clean electricity”, which not only increases the efficiency of new energy production, but also achieves energy conservation and emission reduction. If there is no UHV, the new energy that we concentrate on development will not be able to achieve long-distance deployment, and it will only be consumed on the spot. However, the local demand for electricity is limited, and excess energy can only be wasted. China should speed up the construction of ultra-high voltage transmission channels, so that wind power, solar power and other power output into this channel as soon as possible, increase the proportion of clean energy access, and effectively improve the energy structure.

Therefore, accelerating the development of UHV is not only an important measure for stabilizing growth and improving energy security capabilities, but also an effective means of adjusting the energy structure and transforming the mode of development. It can be said that UHV is China's and the world's, and it is also modern and future. The development of UHV is not only an important way to ensure the security of energy supply, but also conducive to the expansion of domestic demand and steady growth, so as to promote sustained and healthy economic development.

Electric Supplies

Electric Supplies,Electric Supplies For Sale,Electrical Supply Store,Wholesale Electric Supply

Taiyaun JDS Machinery And Equipment Co., Ltd. , https://www.ccagoods.com