On April 9, it was reported that my country's quantum sensing technology in the power field has made a major breakthrough - the world's first set of ±800 kV ultra-high voltage DC quantum current sensor was successfully put into operation for more than 72 hours at the Liuzhou converter station of the Kunliulong DC project.
This breakthrough was completed by the China Southern Power Grid Company and more than 20 units including the Shanghai Institute of Microsystem and Information Technology of the Chinese Academy of Sciences after a year and a half of joint research, successfully overcoming world-class technical difficulties such as quantum state regulation and extreme environment packaging.
The sensor has achieved a number of technical breakthroughs based on quantum characteristics: in terms of environmental adaptability, it can work stably at extreme temperatures from -40℃ to +85℃; in terms of measurement performance, it has achieved ultra-wide range coverage from milliamperes to 10 kiloamperes, expanding quantum precision measurement technology to the conventional industrial temperature range for the first time.
Compared with traditional sensors, its measurement accuracy is nearly 4 times higher, and it can monitor the no-load and heavy-load status of the DC transmission system with high precision around the clock, and transmit data back in real time, marking that my country's DC transmission system has officially entered a new era of "quantum precision".
This technological breakthrough has opened up broad prospects for the application of quantum technology in the industrial field. In the future, quantum sensing technology will provide new solutions for the construction of new power systems, including key areas such as AC/DC hybrid control, equipment status monitoring and new energy grid connection.
Its industrial chain covers the entire chain from materials, sensors, power equipment to grid operation and new energy development, and will become an important technical support for promoting global energy transformation.