Dynamic Simulation Analysis of Null-Flux Coil Superconducting Electrodynamic Suspension System.

Due to the advantages of no active control, self-stability, large clearance, and small self-weight, the electrodynamic suspension system has a wide range of applications in high-speed fields such as ultra-high speed maglev transportation, electromagnetic ejection and rocket propulsion. Based on dynamic circuit theory, Neumann equation, and virtual displacement method, the electromagnetic force calculation model of the null-flux coil superconducting electrodynamic suspension system is obtained, and a dynamic window algorithm is designed to accelerate the electromagnetic force calculation speed. Co-simulation platform is built to overcome the difficulty in dynamic solution of the vehicle. The results of the co-simulation reflect the motion status of the vehicle under different working conditions, revealing the potential dynamic problems of the superconducting electrodynamic suspension system.