653 高温超電導フライホイールの開発

概要

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In this research, it proposes the development of High-Tc Superconducting Levitation flywheel. The permanent magnet magnetized in the thickness direction where the sectorial magnetic material plate is adsorbed creates the multipole field outside of the magnet. The levitation body achieved the stable rotation without the control by giving the driving force from the axial direction to the multipole field of the levitation body, and thus it succeeded in riding past the resonance. And, the voltage correction that considered the counter-electromotive force and impedance was executed so that this system might obtain the stable torque. As a result of measurement of electric power generation at the high-speed rotation region, it was confirmed that this system had about 84% conversion efficiencies. The result of the experiment and the theoretical value of the magnetic flux density, the torque, the frequency response, and the conversion efficiency of this system were compared. As a result, because measurements and the analytic value were corresponding well, it was confirmed that this analysis was useful.
2008-09-02