New energy-loving UHV triggers revolution in the world power grid

The problem of energy shortage is one of the main problems that restrict China's economic and social development. How to solve this problem has also become an important issue. Now the emergence of UHV has made us see hope.

UHV can be called the new favorite of energy. UHV has the advantages of large transmission capacity, long distance, high efficiency and low loss. The successful application of UHV in China is a revolution in the world power grid field. Highly concise the development of UHV AC-DC technology in China in the past 10 years, systematically expounded the law of voltage level improvement, UHV AC-DC voltage level selection, system characteristics, key technical research and engineering practice, theoretical research on UHV AC-DC power grid, Technological research and development and engineering practice innovation have guiding significance.

UHV AC-DC technology breaks through the highest level of international high-voltage transmission from theory to practice. It needs to overcome a series of world-class problems such as high voltage, high current and electromagnetic and insulation characteristics under harsh natural environment. The research and development is extremely challenging.

Based on independent innovation and united forces, China has carried out research and demonstration of UHV technology, scientific and technological research, planning and design, equipment development and construction and operation. Through 310 research projects on key technologies of AC and DC, UHV has realized UHV from AC to DC. A comprehensive breakthrough from theory to practice. The Erjiao three-straight high-voltage project was built. Through the research and development and engineering application of UHV transmission technology, China has taken the lead in establishing a complete UHV transmission technology standard system and 200 standards for UHV AC and DC in order to promote the application of UHV transmission technology. Lay the foundation.

For the first time, China has achieved China's creation and China's leadership in the field of power grid technology, realizing the historical transformation from catching up to surpassing, and driving Chinese electrical equipment enterprises to go out and enhance their core competitiveness. In January 2013, the key technologies, complete sets of equipment and engineering applications of UHV AC transmission won the special prize of National Science and Technology Progress Award. UHV AC and DC power grids will achieve energy security and efficient transportation.

Energy is an important material basis for economic growth and social development. Sustainable energy development is a major strategic issue that affects the overall economic and social development of China. The contradiction between China's energy resources distribution and supply, production and transportation, consumption and environmental protection has also accumulated for a long time. Energy development faces a severe situation of tight resource constraints, serious environmental pollution and degraded ecosystems. In the future, China's energy demand will continue to maintain a sustained and rapid growth trend. With the profound changes in global geopolitics and energy patterns, China's energy situation will be more complicated, and it is imperative to change the way of energy development. Relying on the UHV AC-DC power grid, it will build a basic platform for optimally configuring energy resources and ensuring national energy security. It will efficiently and economically transport large-scale and long-distance power, promote large-scale intensive development of energy bases, and effectively solve random wind power and solar power generation. The problem of sexual and intermittent power access, improving the integration of new energy and the ability to absorb energy is an important measure to accelerate the adjustment of energy structure, effectively prevent and control air pollution, and promote the construction of ecological civilization.

Providing a long-term solution to solving energy problems Since 2004, State Grid Corporation has conscientiously implemented the scientific development concept, stood at the height of the national energy strategy, focused on China's energy resource endowment and future power demand, and vigorously promoted a special four strategies to accelerate Build a strong Sanhua UHV synchronous grid. In 2020, a five vertical and five horizontal UHV AC grid and 27 UHV DC projects will be built to connect large energy bases and major load centers to form an energy allocation pattern for the transmission of electricity from the west to the south.

The contradiction between energy supply and demand in the world, objectively requires the optimization of resources across intercontinental and larger areas. As the international community pays more attention to the ecological environment and climate change issues, countries continue to improve environmental protection and emission standards for energy development, and strive to achieve clean energy development. The construction of transnational and intercontinental energy transmission and grid interconnection based on UHV technology is a safe, economical, efficient and mature strategic choice. It is a long-term strategy to realize optimal allocation of resources and solve energy problems on a global scale. At present, in addition to China, India, Brazil, South Africa, Russia and other countries are actively developing UHV.

comment:

UHV can be called a veritable new energy darling. With the application of UHV technology, our energy shortage problem can be alleviated. Of course, if we want to completely solve the energy shortage problem, we must continue to develop new energy. It is a long-term strategy.