The invincible existence of superconducting technology combined with smart grid

As China's power resources and load resources are not geographically matched, "West-to-East Power Transmission, Nortel South Transmission" will still be China's basic national demand, and China will still maintain a nationwide network. For such a huge super power grid with high proportion of renewable energy access, ensuring the safety and stability of the power grid, operational reliability, and reducing network loss are major issues that need to be solved in the future development of power grids in China.

At the 505th Xiangshan Science Conference held in Beijing on the theme of "Application of Superconducting Technology in Future Power Grids", experts at the conference pointed out that due to the special physical properties of superconductors, such as lossless high-density current carrying capacity Etc. Therefore, in essence, superconducting power technology has significant advantages in improving grid safety and stability, power quality, increasing large-capacity long-distance transmission capacity, reducing grid loss, and reducing power equipment land. If it can be widely used in the future power grid, it will have a revolutionary impact and is of great significance for promoting the transformation of new energy.

Academician Yan Luguang of the Institute of Electrical Engineering of the Chinese Academy of Sciences said that superconducting technology will usher in the third stage of development. The core of the technology is to realize the practical application of superconducting technology, but it is necessary to focus on the high temperature superconducting physical mechanism and the high temperature superconductor critical temperature. A major breakthrough. Academician Zhou Xiaoxin of China Electric Power Research Institute believes that the cross-regional interconnection of national power grids will still be the basic demand in China. The new transmission technology based on superconducting power transmission has a great advantage in principle, due to the loss of conventional transmission technology. Big, if you can make a major breakthrough in superconducting physics and materials, it will be of great significance.

Academician Gan Zikai of Peking University pointed out that superconducting technology belongs to a completely new paradigm, which will completely change the traditional grid mode. However, the development of superconducting technology requires long-term efforts. In addition to increasing the critical temperature of superconductors, new breakthroughs have been made in superconducting materials and cryogenic engineering. Academician Zhao Zhongxian of the Institute of Physics of the Chinese Academy of Sciences believes that the development of superconducting power technology requires one step at a time. Currently, it is possible to select a direction where the power grid has special needs and conventional technology is difficult to solve as an entry point, such as short-distance large-capacity power transmission through the river and through the tunnel. delivery.

Xiao Liye, a researcher at the Institute of Electrical Engineering of the Chinese Academy of Sciences, stressed that since the development of the power grid requires a combination of multiple technologies, it is also important to focus on the organic integration and complementarity of superconducting power technology and other technologies. Academician Cheng Shijie of Huazhong University of Science and Technology believes that the composite application of superconducting energy storage systems and various energy storage systems is of great significance for promoting the use of renewable energy.

The participating experts agreed that superconducting power technology is one of the important research and development directions of future grid technology. They suggested: setting up a “Superconducting Power Technology Action Plan” to strengthen the overall design of superconducting power technology and formulate a strategic roadmap for near, medium and long-term development, highlighting the goal-driven orientation, and suggesting to strengthen the organization at the national level, by the research department. Universities, power grid companies and power equipment manufacturers jointly established relevant research and test platforms, consolidating research conditions, unified deployment, and coordinated research.

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