AbstractudThe proposed research of investigating the interaction between high-temperatureudsuperconductors and linear motors is introduced. Background on levitatedudtransportation, high-temperature superconductor applications and supercon-udductor theory is given. An analytical model is developed for calculatingudthrust and levitation forces produced by 3-phase windings on a pair bulk high-udtemperature superconductors. Results produced by this model for a spacingudof 1 pole-pitch and 1ud2 pole-pitch are presented. In order to verify the analyticaludmodel a prototype system is built from a linear motor primary and vehiclesudcontaining 2 rows of superconductors. Two vehicles are built with differentudspacing between the rows of superconductors in order to investigate the ef-udfect of their positioning, with respect to the pole-pitch, on the thrust forcesudproduced. Measured forces on these two vehicles are then compared with pre-uddicted values showing that the model predicts the forces with less than 5%uderror. Problems with the analytical model are also discussed. Finally it is con-udcluded that the model developed provides insight to the relationship betweenudhigh-temperature superconductors and travelling magnetic waves, and that aud1 pole-pitch separation between superconductors produces higher forces. Rec-udommendations for further development of the prototype system are also given.
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