A superconduct magnet contactless power supply device

Abstract

A superconduct magnet contactless power supply device is provided. An output terminal of an alternating current power supply is serially connected with a compensation capacitor and then connected withone end of a primary winding. the other output of AC power supply is connected to the other end of primary winding, the primary winding wound by Leeds wire is arranged on the top surface of cryogenicvessel, the two ends of secondary winding wound by superconducting wire are connected with superconducting magnet load through superconducting bridge respectively, and the turns ratio of primary winding to secondary winding is greater than 1; The primary winding and the secondary winding are respectively wound on a disk-shaped coil skeleton, and the secondary winding and the coil skeleton, the superconducting bridge and the superconducting magnet load are all packaged in a cryogenic vessel. The invention solves the problems of large heat leakage of the lead wire, low efficiency of the low-temperature system, easy to induce quenching and the like existing in the contact power supply mode of the external driving power supply, and has the advantages of simple structure, high transmission efficiency, large working air gap and the like.

Description

technical field [0001] The invention relates to the technical field of non-contact power supply including wireless energy transmission, superconducting magnets, low-temperature engineering, etc., and specifically relates to a superconducting magnet non-contact power supply device based on the principle of magnetic coupling. Background technique [0002] Existing non-contact power supply technologies include radiation transmission based on microwaves, magnetic resonance coupling based on non-radiation, and flux pumping based on the principle of electromagnetic induction. The non-contact power supply technology suitable for superconducting magnet power supply - the flux pump mode, based on different working principles, can be divided into compression flux pumps, DC motor flux pumps and rectifier transformer flux pumps. The compression flux pump generates induced current by capturing and compressing the magnetic flux; the DC motor flux pump uses the magnetic field generated by ...

AI Technical Summary

Problems solved by technology

However, the gap between the non-contact primary and secondary sides of this power supply technology is very small (generally only on the order of millimeters), and in order to ensure the requirements of mechanical strength and vacuum insulation, the thickness of the cryogenic refrigeration system is generally on the order of centimeters, and increasing the gap will lead to Severe magnetic flux leakage reduces the efficiency of the flux pump and limits the application value

Images