Development of a high-Tc superconducting levitation synchronous motor

In this research, it proposes the Hi-Tc superconducting levitation synchronous motor by using an outer field reversal about the levitation body. This levitation body is a permanent magnet magnetized in the thickness direction. The multipole field is given to outer by making this permanent magnet adsorb larger than the external radius of the magnet more sectorial magnetic material plate. The levitation body rotates by giving the driving force axially to the multipole field of the levitation body. Each of a vertical direction and a horizontal direction electromagnetic force are counterbalanced by such a driving method, and the levitation body does the stability rotation without control. The magnetic flux density analysis and the torque analysis of the system that proposed it by this research were executed, and the comparison by this result and the experiment was done. As a result of the experiment, this motor was confirmed that it was possible to rotate at high speed without the control. Moreover, because each analysis resembled the result of experiment very much, utility of analysis was confirmed.