On January 3, the reporter learned from the Institute of Plasma, Hefei Institute of Material Science, Chinese Academy of Sciences that the "Fusion Reactor Host Key System" built and operated by the institute has made new progress recently. Its subsystem "Fusion Engineering Reactor Center Solenoid System" completed the first round of test experiments, with the maximum test current reaching a steady-state 48 kamps, with a design value of more than 47 kamps. The experimental results show that the facility has fully met the design indicators and has become the world's largest and most complete large-scale superconducting magnet dynamic performance testing system with the largest and most complete experimental conditions.
The "Fusion Engineering Reactor Center Solenoid System" aims to build a large superconducting magnet and experimental system, and carry out a series of experiments such as strong electromagnetic field, high voltage rapid changes, and system reliability of superconducting center solenoid magnets under the operating conditions of future fusion engineering reactors, and obtain sufficient operating conditions data, laying a solid foundation for the construction of fusion engineering reactors in my country.
It is understood that the project team has lasted nearly 10 years and has solved many key scientific and technological problems such as large fusion reactor superconducting magnet design, low resistance superconducting joints, ultra-low temperature magnet insulation, oversight protection, large low temperature, high current power supply and fast magnetic field change safety control, and successfully developed and built the world's largest superconducting magnet and testing system to achieve 100% domestic production of superconducting magnet materials, equipment, and systems; next, the system control will be further optimized and scientific research on high magnetic field change rate, greater current, higher magnetic field, and extreme accident conditions will be carried out in-depth.
The completion of the central screw pipe system of the fusion engineering reactor will not only provide good experimental conditions for future fusion reactors, but also provide first-class large-scale testing platforms for other fields such as low temperature, materials, condensed matter physics, and superconducting applications.
