Dr. Jinxing Zheng, Chinese Academy of Sciences, China
Exceeding the 1000 character limit by more than 20%
Primarily engaging in the numerical simulation of the critical characteristics of high-field HTS magnets for fusion applications, including performance degradation under irradiation, AC losses, and stability: (1) Under neutron irradiation of 1018n/cm2, developing a computational model to track and analyze the displacement damage of atoms in HTS tapes under deuterium-tritium neutron irradiation, and establishing a critical current calculation model incorporating irradiation factors. (2) Using a simplified homogeneous medium model, developing an improved real-time multi-scale loss calculation model, enabling fast and accurate computation of AC losses in large HTS magnets with strong anisotropy. (3) Establishing a three-dimensional quench propagation analysis model based on a parametric path method for non-uniform coils and proposed a method for rapid localization of minimum temperature margin based on peak thermal and magnetic loads, allowing precise calculation of the stability margin of HTS magnets.
Based on these achievements, completing critical characteristic calculations and stability margin evaluations for the ITER poloidal field magnets and the 14.5T CFETR toroidal field magnet prototypes. Additionally, designing the high-field high-temperature superconducting magnet system for the Burning Plasma Experimental Superconducting Tokamak (BEST). These results have also been extended to applications in HTS motors, high-speed maglev high-temperature superconducting magnet systems, and HTS energy storage power equipment.
