Influence Analysis of SMES Magnet Design Scheme on Its Voltage Distribution Characteristic

Aiming at the problem of high-frequency pulsewidth modulation pulse voltage suffered by superconducting magnetic energy storage (SMES) magnets and the uneven distribution of voltage in the windings of the magnet, this article analyzes the influence of SMES magnet parameters on its voltage distribution characteristic. Taking solenoid magnet and toroidal magnet as research objects, the key parameters are selected to analyze the voltage distribution of different magnet schemes, and the influence rules are deduced. Then, an optimal design of SMES magnet considering voltage distribution characteristic is proposed. The influence rules can be set as the weight of key parameters in the electromagnetic optimization design of the magnet. Finally, to evaluate the effectiveness of the proposed design method, a 3.8 MJ SMES magnet design considering voltage distribution characteristic is carried out.