Geometric Structure Design And Optimization Of High Temperature Superconducting Magnetic

Superconducting magnetic energy storage system is attracting more and more attention.However,due to the anisotropy of high temperature superconducting strip,the critical current density of magnet is seriously restricted,and its energy storage is also affected.In order to make the magnetic energy storage be further improved,this paper try to optimize the structure and the method of mixing the strip,hoping to change the magnetic field distribution of the magnet to achieve the purpose of improving energy storage.To realize this process,the finite element analysis software is used to simulate the magnet.Under the premise that the amount of the magnet strip is constant,the first single solenoid type magnet is used as the premise,this paper studies the effect of different diameter-height ratios on magnet energy storage and obtains the maximum critical current to improve energy storage by current iterative method.On this basis,through the structural optimization,the establishment of two-step structure of the magnet to further improve the energy storage,and at this time to obtain the maximum storage capacity of the magnet structure to meet the conditions.Finally,the use of single strip to mixed strip further improves energy storage.The simulation results show that the energy storage efficiency of the magnet is improved about 61% by the above the optimization of structure and strip.This article also made some simulation analysis and prospect of the third-step magnet.