Experimental researches of superconducting excitation windings of magnetolevitation transport devices in dynamic modes

Résumé fourni par la source

The purpose was to determine the dependence of the performance of a superconducting winding, functioning as the excitation system for the electromagnetic suspension of magnetic levitation transport, on the amplitude and frequency of the external magnetic field acting on this winding. The experiments were carried out on winding wound by the multi-lithium composite low temperature superconductors. The external alternating magnetic fields were created using a vibration stand and an auxiliary AC winding. We obtained the characteristics of the transition of superconducting excitation windings to the resistive state as a function of the frequency and amplitude of the external magnetic field. For windings operating in the "frozen" magnetic flux regime, the decay of transport current under the action of an external alternating magnetic field was investigated. The operational capability of a superconducting excitation winding in an external alternating magnetic field is determined by its amplitude and frequency, as well as by the parameters of the superconducting material of the winding and the ratio of the transport current and critical current values characteristic of this winding. The results of this work can be used in the design and creation of superconducting windings for high-power energy devices, including magnetic levitation transport systems.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.