Magnetic-Force Characteristics of Hybrid Levitation Systems Based on CC-Tapes

Abstract

One of the common applications of high-temperature superconductors is levitation transport. Recently, a number of works have been aimed at increasing the levitation force of levitation transport by using the repulsive force between permanent magnets. The use of permanent magnets significantly increases the levitation force, but also greatly reduces the lateral stability of the system. Then the main role of the superconductor is vertical and lateral stabilization of the system. In our work, we present new experimental results on the study of the levitation force and lateral stability of hybrid maglev systems of various configurations. Configurations are considered when the superconductor is between two magnet assemblies and when the superconductor and the carriage magnet assembly are arranged in series along the guidway. A commercially available 12 mm wide CC-tape manufactured by SuperOx was used for measurements. Both the vertical levitation force and the lateral restoring force were measured. Based on the experimental data, we concluded that the configuration with the separate arrangement of the carriage magnets and the tape stack is more advantageous from the point of view of the stability of the levitation force and the lateral stability of the system. The results obtained may be relevant for the development of hybrid levitation systems using permanent magnets to increase the levitation force.