General expressions of propulsion force in EDS-MAGLEY transport systems with superconducting coils

The propulsion force produced by air-cored long-stator linear synchronous motors with superconducting coils propelling magnetically levitated vehicles with electrodynamic suspension (EDS-MAGLEV) is determined by means of an analytical three-dimensional method which takes into account different coil arrangements and the harmonic spectrum of the armature currents. The resulting analytical expressions take into account the actual coil thicknesses as well as the approximation of filiform coils and armature coils arranged both in a single layer and in two overlapped layers. The expressions have been utilized to calculate the propulsion force acting on an EDS-MAGLEV vehicle.<>