Design, Construction and Performance of an EMS-based HTS Maglev Demonstrator

摘要

A laboratoryscale maglev demonstrator has been successfully constructed. The fully integrated system consists of a mechanical lever, a magnetic circuit, a control and distance sensor, and a power supply. The magnetic circuit includes a Ushape iron core with one HTS coil forming each pole. Two HTS coils made of Bi2223 multifilamentary tape were used to provide the magnetic motive force. Several questions relating to the unique characteristics of the HTS material in a controlled magnetic circuit are discussed. The most important consideration for such applications is that the anisotropic critical current of the Bi2223/Ag tape dependents strongly on the magnetic field. The results demonstrate the feasibility and stability of HTS material in a typical maglev system and other similar controllability applications.