Wireless charging system and apparatus for superconductor magnetic levitation train using high-temperature superconductor magnet

摘要

A wireless charging system and apparatus for an inexpensive and stable superconducting magnetic levitation train are provided. A wireless charging system for a superconducting magnetic levitation train according to the present invention comprises a plurality of superconducting wireless charging devices arranged on guide rails installed on both side surfaces along a train rail and a plurality of superconducting And a wireless charging device. The normal-conduction wireless charging device includes an alternating-current power source, one or more normal-conduction transmitting-coil portions for receiving electric power from the alternating-current power source and generating an electric field, and an impedance matching circuit disposed between the power source and the normal- . A superconducting wireless charging apparatus includes a superconducting receiving coil part accommodated in a freezer and receiving power from a transmitting coil, a superconducting magnet accommodated in the freezer, a rectifying circuit converting an alternating current from the superconducting receiving coil into a direct current, And a superconducting switch that is short-circuited when sufficient power is supplied to the superconducting magnet to enter the permanent current mode.