427 results about "High temperature superconducting" patented technology

The invention discloses a super-large-scale silicon single crystal growth method based on a high-temperature superconducting magnetic control technology, and relates to the technical field of silicon single crystal growth, and the method comprises the following steps: setting and calibrating an initial magnetic field intensity, and combining a gradient graphite felt heat conductivity coefficient function to optimize temperature field uniformity; a dynamic magnetic field regulation and control mechanism is introduced in the melt stage, melt convection is inhibited through flow velocity-magnetic field joint control, and oxygen concentration monitoring is synchronized; a multi-physics coupling simulation and multi-objective optimization algorithm is adopted in the crystal growth stage, the magnetic field intensity, the heating power and the crystal pulling parameters are adjusted in real time, and the oxygen content and the growth rate are balanced; and the tail stress is relieved through a gradient field reduction technology, and finally, the low-defect and high-uniformity silicon single crystal is obtained. Melt flow and temperature field uniformity are accurately regulated and controlled through a high-temperature superconducting magnetic control technology, dynamic monitoring and a multi-target optimization algorithm are combined, the growth quality of silicon single crystals is remarkably improved, the defect rate and energy consumption are reduced, and meanwhile efficient and stable production of large-size crystals is achieved.

The invention provides an attractive, fast and cost-effective alternative method for conventional nuclear fusion reactors. An ultra-compact spherical Tokamak which combines three key features intended to accelerate fusion energy as feasible energy sources, the features being a spherical Tokamak, a negative triangle plasma shape and a high temperature superconductor coil.

The invention belongs to the technical field of high-temperature superconducting detection, and discloses a quench detection sensor based on a high-temperature superconducting material and a detection method.The quench detection sensor comprises an inner layer structure composed of a metal base band, a first insulating layer and a high-temperature superconducting material layer, and a second insulating layer arranged between the metal base band and the high-temperature superconducting material layer; the second insulating layer covers the areas, not at the two ends, of the outer side of the inner layer structure, and a metal base band or a high-temperature superconducting material layer is arranged between the second insulating layer and the first insulating layer; the two ends of the short-circuit connection metal are fixedly connected to the first end of the metal base band and the first end of the high-temperature superconducting material layer respectively; the number of the connecting terminals is two, the two connecting terminals are jointly used for being connected with a detection voltmeter and a detection current source through wires, and the two connecting terminals are fixedly connected to the second end of the metal base band and the second end of the high-temperature superconducting material layer respectively. The quench detection sensor is high in detection reliability.

A bearing and flywheel system can include a first bearing portion having an opening of a first dimension there through and a central longitudinal axis, a second bearing portion having a second dimension, the second dimension being smaller than the first dimension, and a flywheel coupled to the second bearing portion. The bearing portions can include high-temperature superconductor(s) and / or magnets. The second bearing portion can be disposed at least partially within the opening through the first bearing portion. A gap can exist between an outer surface of the second bearing portion and an inner surface of the first bearing portion. The second bearing portion can be configured to rotate relative to the first bearing portion.

An on-line program control excitation power supply with quench protection for a high-temperature superconducting magnet comprises a single-chip microcomputer for receiving control data, outputting control voltage through digital-to-analog conversion (DAC) of the single-chip microcomputer, and magnetizing a magnet coil through current stepping; a sampling signal is output to the liquid crystal screen to display corresponding voltage and current values in real time after being processed by the single-chip microcomputer analog-to-digital conversion ADC; voltage signals at the two ends of the magnet coil are sampled and returned to the single-chip microcomputer to be processed, when high voltage occurs, it is judged that the voltage signals are abnormal voltage signals, quench protection is carried out, the single-chip microcomputer outputs control signals to cut off connection between the magnet coil and the excitation power source, and residual energy of the magnet coil is released through the high-power thyristor. The provided excitation power supply has the characteristics of high power, high stability, good repeatability and good linearity; performing numerical control stepping output, gradually applying current to the superconducting coil, and slowly establishing a magnetic field; effective quench protection is achieved, and it is guaranteed that a magnet coil is not damaged by quench.

The invention discloses an electromagnetic signal superconducting observation system based on micro-shielding and thermal management and a design method, and the system comprises a high-temperature sensor unit which comprises a pressure-resistant constant-temperature container, a specially-made non-magnetic glass Dewar flask disposed in the pressure-resistant constant-temperature container, and a built-in three-axis high-temperature superconducting sensor. The pressure-resistant constant-temperature container comprises a base body made of carbon fiber reinforced plastics, and a low-frequency frequency-selecting shielding layer, an insulating thin layer, an absorbing layer and a high-frequency shielding layer are sequentially arranged outside the base body. According to the invention, the interference of high-frequency noise in a complex environment and the thermal noise of the three-axis high-temperature superconducting sensor can be significantly reduced. According to the system provided by the invention, the low-noise electromagnetic signal detection of the high-temperature superconducting sensor can be realized in a complex environment, the application range of electromagnetic method technology resource exploration can be widened, and the detection precision can be improved.

The invention discloses a multi-field coupling fatigue test device and method for a high-temperature superconducting tape, and belongs to the field of superconducting tape fatigue tests.The multi-field coupling fatigue test device for the high-temperature superconducting tape comprises a fatigue testing machine, and a test container used for providing a low-temperature field is arranged in a test area of the fatigue testing machine; a clamp assembly used for fixing a sample to be tested is arranged in the experiment container, the clamp assembly is connected with a current assembly used for providing an electric field, and a magnet assembly used for providing a magnetic field is arranged in the experiment container. According to the multi-field coupling fatigue test device and method for the high-temperature superconducting strip, the limitation of an existing test means is broken through, and a reliable experimental platform and application value are provided for mechanical property research and service life evaluation of superconducting materials and other low-temperature service materials.

The embodiment of the invention provides a flywheel direct-driven cogeneration unit dynamic adjusting system and a control method thereof, in the embodiment of the invention, a magnetic suspension technology is adopted to eliminate friction of a traditional mechanical bearing, and quick starting and stopping of the rotating speed of a flywheel are realized; the high-temperature superconducting magnetic clutch achieves instantaneous mechanical coupling / decoupling of the flywheel and the circulating pump through the zero resistance characteristic, and the response time is short. The frequency modulation requirement of a new energy power grid can be matched, and meanwhile hard constraint of thermal load fluctuation on electric energy output is avoided. The mechanical direct-drive path directly utilizes the kinetic energy of the flywheel to drive the circulating pump, so that a multi-stage energy conversion link in a traditional mode is omitted; the electric adjusting path realizes bidirectional power exchange between the flywheel and a power grid through an energy interface device, and the loss of an inverter is reduced; and the high-temperature superconducting magnetic clutch realizes zero-energy-loss transmission in a coupling state. The magnetic suspension flywheel set adopts a non-contact suspension technology, so that mechanical wear is eliminated; the high-temperature superconducting magnetic clutch achieves non-contact transmission through magnetic coupling, and friction loss is avoided.

The invention discloses a critical current nondestructive testing device for a joint-free high-temperature superconducting tape. The critical current nondestructive testing device comprises a testing tape reel, a fixing plate, a testing tape reel motor rotating shaft, an air heater, a tension sensor, a wire guide wheel, a magnetizing device, a double-hole Hall sensor, a liquid nitrogen Dewar and the joint-free high-temperature superconducting tape. The test tape reel is used for placing the joint-free high-temperature superconducting tape; the testing tape reel motor rotating shaft is used for connecting the motor and the testing tape reel, and the air heater is used for blow-drying the tape to prevent the surface of the superconducting tape from freezing. The tension sensor is used for carrying out real-time and on-line monitoring on the tension applied to the superconducting tape. The wire guide wheel is of a bearing supporting structure and comprises a built-in deep groove ball bearing or sliding bearing. And the magnetizing device is used for magnetizing the high-temperature superconducting tape. The double-hole Hall sensor can detect magnetic field distribution on the surface of the magnetized strip. The double-hole Hall sensor is provided with a double-hole structure, and the slit strip is detected through the wire passing double holes.

The invention discloses a high-temperature superconducting strip with non-uniform distribution of critical current density and a preparation method thereof, and belongs to the technical field of high-temperature superconducting materials. The critical current density of the high-temperature superconducting strip is non-uniformly distributed in the width direction, the current distribution of the high-temperature superconducting strip can be regulated and controlled according to requirements, the high-temperature superconducting strip comprises a high-temperature superconducting layer, the chemical formula of the high-temperature superconducting layer is Re < 1 + a > Ba < 2 + b > Cu < 3 + c > O < 7-d + x% (mol) BaMO3, and Re is selected from Y, Gd, Eu and Sm; m is selected from Hf, Zr and Sn; the preparation method comprises the following steps: depositing the high-temperature superconducting layer on the strip substrate; depositing a metal silver layer on the deposited strip; and carrying out heat treatment on the deposited strip in an oxygen environment, and carrying out laser heat treatment after slitting and / or copper plating. The critical current density of the high-temperature superconducting strip in the width direction is non-uniformly distributed and controllable, the failure risk of the strip is effectively reduced, and the service performance of the strip is improved.

The invention discloses a high-temperature superconducting cable refrigeration management method and system combined with a heat transfer mechanism model, and relates to the technical field of refrigeration management, and the method comprises the following steps: carrying out the space structure division of a high-temperature superconducting cable pipeline, and constructing a first structure feature set according to the division result; converting the first structural feature set into a first time sequence according to the liquid nitrogen flow direction, and aligning the first time sequence with a preset reference sequence by adopting a DTW algorithm; based on the alignment result, centrifugal force deviation change gradients of the liquid nitrogen after passing through the multiple pipeline bent sections are extracted, and a centrifugal force deviation gradient curve is constructed; feature extraction is conducted on the centrifugal force offset gradient curve, heat exchange parameters in a preset heat transfer mechanism model are dynamically adjusted according to a feature extraction result, and a corrected heat transfer mechanism model is obtained; and cable temperature prediction is carried out based on the corrected heat transfer mechanism model, refrigeration management is carried out according to a prediction result, and the problem of uneven local heat load caused by flow deviation of the bending section is solved.

The invention discloses a preparation method of Bi-2212 precursor powder capable of remarkably improving the phase density of Bi-2201 nanometer stripes in a Bi-2212 wire rod, and the Bi-2212 precursor powder capable of remarkably improving the phase density of the Bi-2201 nanometer stripes in the Bi-2212 wire rod is obtained by controlling the components of a precursor solution, adjusting in cooperation with a fine heat treatment method and controlling the molar ratio of Sr to Ca. According to the method disclosed by the invention, the components of the precursor solution are controlled, the large-size Bi-2201 phase is eliminated in combination with heat treatment, and the molar ratio of powder Sr to Ca is controlled to be within a proper range, so that the density of the nano stripe Bi-2201 phase in the Bi-2212 wire rod is improved, and the pinning performance of the Bi-2212 wire rod is favorably improved; the method is easy to operate, low in cost and high in controllability and operability, the cost performance of the Bi-2212 superconducting wire is improved, and rapid application of the Bi-2212 superconducting wire in the field of high-temperature superconducting magnets is further promoted.

The invention discloses a liquid hydrogen high-temperature superconducting motor and magnetofluid dual-power propulsion system, and aims to solve the problems that an existing ship propulsion system is single in power mode and insufficient in power density. The system comprises a liquid hydrogen storage and supply unit, a cooling unit, an energy conversion unit, a superconducting motor propulsion unit and a magnetofluid propulsion unit, the liquid hydrogen storage and supply unit conveys liquid hydrogen to the superconducting part through the cooling loop, the liquid hydrogen is converted into hydrogen through the heat exchanger after being cooled, the energy conversion unit converts the hydrogen into electric energy and outputs the electric energy in a matched mode, and the superconducting motor propulsion unit and the magnetic fluid propulsion unit generate mechanical energy or electromagnetic force through the electric energy to drive a ship. And the superconducting component is cooled by the cooling loop. The liquid hydrogen in the system has the dual functions of a cooling medium and fuel, a coolant and fuel do not need to be additionally configured, the requirements for silence, high thrust and rapid maneuvering are met, the power density is high, the environmental protection property is good, and the system is suitable for high-performance propelling scenes such as ships, especially submarines.

The invention discloses a conduction cooling type high-temperature superconducting magnet structure with high energy storage density, and belongs to the technical field of high-temperature superconducting energy storage magnets. A plurality of double-pancake coils, wherein the plurality of double-pancake coils are coaxially nested and stacked on the basic frame; an inter-pancake G10 insulating sheet is arranged in the middle of the double-pancake coil and is used for improving the overall insulating property; the inter-double-cake cold conduction plate is arranged between the two adjacent double-cake coils and is used for enhancing the radial heat conduction capability; the magnetic conducting ring is embedded in a hole position on the inner side of the end part of the basic frame and is used for optimizing the distribution of a magnetic field; and the coil radial pre-tightening structure surrounds the outer side of the double-pancake coil and is used for applying radial pre-tightening force to the double-pancake coil. A conduction cooling scheme is adopted, an efficient heat conduction path is constructed through the well-designed cold conduction center column, the framework structure and the cold conduction plate between the two cakes, uniform cooling of the magnet can be achieved, and the operation cost is effectively reduced.

The invention provides a superconducting diode and a preparation method thereof. The preparation method comprises the following steps: modulating the high-temperature superconducting Josephson junction device: connecting the first electrode to a power supply, connecting the second electrode and the third electrode to a voltage measuring device, and grounding the fourth electrode; reducing the environment temperature of the high-temperature superconductive Josephson junction device to a preset temperature lower than the superconductive transition temperature; direct current pulse current with a preset pulse signal is applied to the first electrode, so that a volt-ampere characteristic curve of the high-temperature superconducting Josephson junction device has a rectification characteristic; and applying an alternating current with a predetermined microwave signal to the first electrode, so that a voltage step appears on one side of the volt-ampere characteristic curve, and the other side of the volt-ampere characteristic curve is in a superfluid state. The superconducting diode is obtained by carrying out direct current modulation and alternating current modulation on the high-temperature superconducting Josephson junction device, and high rectification efficiency and high working temperature can be achieved.

This invention relates to the field of high-temperature superconducting material performance testing technology, and particularly to a high-temperature superconducting tape testing device. The device includes a tape testing apparatus with tape winding and unwinding mechanisms at both ends. The apparatus includes a liquid nitrogen tank for storing liquid nitrogen. A portion of the tape to be tested is located within the liquid nitrogen tank, with both ends of the tape passing through through holes in the liquid nitrogen tank and wound onto winding and unwinding wheels in the tape winding and unwinding mechanisms. Each end of the testing apparatus has a tape reheating device, which includes a constant temperature chamber with an inlet and an outlet hole. This invention features a simpler and more rational structural layout, enabling better tape winding and unwinding operations and improving testing accuracy.

The utility model provides a cooling structure of a high-temperature superconducting coil assembly and a superconducting magnet. A cooling assembly of the cooling structure is attached to the outer surface of at least one side of the high-temperature superconducting coil assembly. The cooling assembly comprises a cold guide plate component and a plurality of cooling pipes, the surface of one side of the cold guide plate component in the thickness direction is attached to the outer surface of the corresponding side of the high-temperature superconducting coil assembly, and a plurality of mounting grooves extending in the thickness direction are further formed in the surface of the other side of the cold guide plate component. The multiple cooling pipes are arranged in the corresponding installation grooves in a matched mode, and the outer wall of each cooling pipe makes thermal contact with the inner wall of the corresponding installation groove. The cooling pipe is used for forced flow cooling, the cold guide plate component achieves conduction cooling, the heat exchange efficiency of the combination of the cooling pipe and the cold guide plate component is higher than that of a single heat exchange mode, and the mode that the cooling pipe is installed in the installation groove of the cold guide plate component enables the structure of the cooling assembly to be compact, and space is saved.

The invention discloses a high-temperature superconductive high-power dual-frequency band-pass filter based on a dual-mode resonator, and belongs to the field of microwave communication. The high-temperature superconductive high-power dual-frequency band-pass filter comprises a dual-mode resonator, the dual-mode resonator comprises a first branch knot, a second branch knot and a third branch knot, and one end of the first branch knot, one end of the second branch knot and one end of the third branch knot are connected to a center node at the same time. A first included angle is formed between the first branch knot and the second branch knot, a second included angle is formed between the second branch knot and the third branch knot, and a third included angle is formed between the first branch knot and the third branch knot. At least one of the first included angle, the second included angle and the third included angle is provided with a protruding part extending in the direction away from the center node. The high-temperature superconductive high-power dual-frequency band-pass filter can effectively improve the power capacity.

The invention relates to the technical field of high-temperature superconducting magnets, in particular to a control method for curing of a high-temperature superconducting magnet, and the method comprises the steps: judging whether the high-temperature superconducting magnet is clean or not according to curing environment data; when the judgment result is that the curing environment belongs to the clean state, obtaining preheating processing data of the high-temperature superconducting magnet and preheating the high-temperature superconducting magnet according to the preheating processing data of the high-temperature superconducting magnet; and after preheating is finished, curing processing data of the high-temperature superconducting magnet are obtained, and the high-temperature superconducting magnet is cured according to the curing processing data. In the preheating and curing process, automatic adjustment and control are carried out, it is guaranteed that the curing process of the magnet is carried out under the optimal condition, and the high-temperature superconducting magnet with excellent performance can be obtained easily.

The present invention relates to a high-temperature superconducting magnet and, more specifically, to: a high-temperature superconducting magnet achieving uniform critical current density using dissimilar metal wire materials; and a design parameter determination method thereof. To this end, in a high-temperature superconducting (HTS) magnet (100) formed by stacking an HTS coil (50) having a tape-type HTS conductor wire material wound thereon, the HTS coil (50) comprises: a first metal wire material (110) wound on the HTS coil (50); and a second metal wire material (130) that is made of a different metal from the first metal wire material (110) and wound while at least partially overlapping the first metal wire material (110) in the longitudinal direction of the first metal wire material (110), thereby forming a composite winding portion (140). Accordingly, the HTS magnet achieving uniform critical current density using dissimilar metal wire materials is provided, wherein the uniformity of the critical current density increases on the longitudinal cross-section of the HTS magnet (100).

The invention discloses a high-temperature superconducting cable equivalent analysis method, a high-temperature superconducting cable equivalent analysis system, a medium and electronic equipment, and relates to the technical field of power devices and superconducting power transmission. Constructing a first equivalent circuit model based on the structural characteristic parameter set, and performing cross generality screening on the material parameters by adopting a multi-factor influence separation method to obtain a first equivalent parameter set; constructing a first coupling model based on the first equivalent parameter set, and applying disturbance signals of different frequencies to perform fault simulation to obtain a working condition equivalent model; extracting transient response data based on the working condition equivalent model, and identifying transient quenching response characteristics of the high-temperature superconducting cable based on the transient response data; according to the method, a multi-objective optimization function is constructed based on transient quench response characteristics, control parameters are optimized by adopting an NSGA-III algorithm, an optimal control strategy is obtained, and the problems of high quench expansion risk and difficulty in timely regulation and control of the high-temperature superconducting cable under a transient fault are solved.

The invention relates to the technical field of superconducting cables, in particular to a three-dimensional heat-flow decoupling modeling method and device for a three-phase three-axis high-temperature superconducting cable, and the method comprises the steps: constructing a simplified three-phase three-axis high-temperature superconducting cable geometric model; constructing a temperature distribution finite element model, wherein the temperature distribution finite element model comprises a decoupled fluid model and a heat transfer model; the dynamic temperature distribution of the three-phase three-axis high-temperature superconducting cable under the influence of transient factors is solved by using a temperature distribution finite element model, and the method comprises the following steps: 1) a steady state step: based on an initial boundary condition, completing basic solution of a cable temperature field and a liquid nitrogen flow velocity field under a steady state through coupling calculation of a fluid module and a heat transfer module; 2) a transient step: taking a result value of steady-state solution as an initial condition of transient solution, and finally outputting a temperature distribution simulation result through multi-step transient solution iteration and flow field and temperature field distribution.Compared with the prior art, the method has the advantages of high modeling precision, small calculation amount, fast convergence and the like.

The invention provides a double-refrigeration device applied to high-temperature superconducting magnetic fluid propulsion, and relates to the technical field of high-temperature superconducting magnet cooling, the device comprises a magnet Dewar, a magnet liquid nitrogen cylinder, a fixing assembly and a conduction refrigeration system; the magnet liquid nitrogen cylinder is located in the magnet Dewar, one end of the fixing assembly is fixed to the side portion of the magnet liquid nitrogen cylinder, and the other end of the fixing assembly is fixed to the magnet Dewar; dewar protrusions are arranged on the circumferential side wall of the magnet Dewar, and the conduction refrigeration system is installed on the Dewar protrusions and exchanges heat with the superconducting magnet coil in the magnet liquid nitrogen cylinder. The superconducting magnet coil is also provided with a wiring port. The dual-refrigeration device provided by the invention breaks through the dilemma that the critical current cannot be tested after packaging, the liquid nitrogen cooling unit can independently, quickly and uniformly cool the packaged magnet, and the detachable sealing wiring port is arranged, so that the performance verification after packaging is realized, and the quality blind area is eliminated.

The application provides a magnetic levitation structure based on double-sided superconducting film, a control method, a system and an application, relates to the technical field of magnetic levitation, and comprises the magnetic levitation structure based on double-sided superconducting film provided by the application, which comprises a suspension force regulation and control unit, a permanent magnet array and a refrigeration unit. The suspension force regulation and control unit comprises double-sided high-temperature superconducting film, a conductive pattern, a printed circuit board and terminal wires. The double-sided high-temperature superconducting film is etched with the conductive pattern on both sides. At least one pair of terminal wires is connected to each side of the double-sided high-temperature superconducting film. The lead of the terminal wire is connected to the conductive pattern, and the lead terminal of the terminal wire is connected to the printed circuit board. The suspension force regulation and control unit is arranged in the magnetic field of the permanent magnet array. The refrigeration unit comprises a container and a cooling medium contained in the container, and the suspension force regulation and control unit is immersed in the cooling medium. The application realizes effective regulation and control of the suspension force of the magnetic levitation structure.

The present invention relates to a multi-connected high-temperature superconducting magnet based on ReBCO-coated superconducting sheets that can simultaneously generate multiple magnetic induction intensities. The superconducting magnet is formed by alternately stacking and fixing one or more sets of superconducting ring sheets and insulating sheets. Several connected circular ring structures with successively decreasing radii are cut out on the superconducting sheets and insulating sheets, and the circular ring structures at corresponding positions have the same size. The present invention adopts a superconducting sheet stacking method, eliminating the bending and winding steps to reduce the impact on the performance of the superconducting tape; at the same time, the device adopts the existing "field cooling method" for excitation, without the need for welding, power supply and current leads, reducing operating costs and heat leakage, and has the advantages of compact structure, detachability, high stability and simple preparation process; it can stably output multiple stable magnetic fields with different magnetic induction intensities, expanding the scope of application of ReBCO superconductors in magnets, and can also be applied to application scenarios such as medium and large superconducting magnets.

The invention discloses a CORC-CICC high-temperature superconducting conductor stability evaluation method and a related device. The method comprises the following steps: acquiring structural information of a CORC-CICC high-temperature superconducting conductor; according to the structural information of the CORC-CICC high-temperature superconducting conductor, determining the shunting temperature, the critical current, the minimum quenching energy and the quenching propagation speed of the CORC-CICC high-temperature superconducting conductor; and evaluating the stability of the CORC-CICC high-temperature superconducting conductor according to the shunting temperature, the critical current, the minimum quenching energy and the quenching propagation velocity of the CORC-CICC high-temperature superconducting conductor, and the method and the related device can evaluate the stability of the CORC-CICC high-temperature superconducting conductor.

A method for fabricating a high-temperature superconductor HTS field coil using one or more HTS strips. Each HTS strip includes a layer of HTS material. The method includes: winding the one or more HTS strips around an axis to form a field coil comprising a winding of HTS strips; and removing material from at least a portion of the one or more windings from the axial edges of the one or more HTS strips to reduce the extent of the one or more HTS strips along the axis of the field coil.

This invention relates to a high-temperature superconducting cable, comprising: a metal skeleton, high-temperature superconducting tape, impregnated filler, a conductive metal layer, and a metal armor layer; a central cooling channel is provided in the center of the metal skeleton; the high-temperature superconducting tape is stacked into strands, with the entire strand spirally wound tightly against the metal skeleton; a conductive metal layer is wound around the outer side of the high-temperature superconducting tape, and a metal armor layer is also provided; the impregnated filler is filled into the gaps between each strand of the high-temperature superconducting tape using a vacuum pressure impregnation process. Compared with the prior art, in this invention, the high-temperature superconducting tape is stacked into strands and wound on the metal skeleton, and the neatly stacked tape is less susceptible to mechanical damage; there are gaps between the strands of the high-temperature superconducting tape, and the size of the gaps can be changed when the cable is bent, so the high-temperature superconducting tape is less likely to be damaged by excessive stress when the cable is bent; after the cable is bent, the gaps between the strands of the high-temperature superconducting tape can be filled by vacuum pressure impregnation, improving the thermal conductivity and mechanical strength of the cable.

The invention discloses a non-contact current compensation method for a high-temperature superconducting electric suspension magnet. The non-contact current compensation method specifically comprises the steps that zero-flux suspension coils are installed on a ground track at equal intervals in the train running direction; the low-temperature system is composed of an outer Dewar, a radiation screen and a refrigerating machine. The vehicle-mounted superconducting magnet is directly conducted and cooled through a refrigerating machine, and the vehicle-mounted power generation coil and the vehicle-mounted excitation coil are installed on the outer side and the inner side of the outer Dewar respectively. The surface of the radiation screen is provided with a high-temperature superconducting tape, and two ends are connected with a vehicle-mounted superconducting magnet to form a closed loop. When a train runs, the vehicle-mounted superconducting magnet induces current in the suspension coil, the vehicle-mounted power generation coil generates power by using a harmonic magnetic field of the suspension coil, the vehicle-mounted excitation coil generates a traveling wave magnetic field and induces voltage on the high-temperature superconducting strip, and based on the magnetic flux quantum coupling theory, the induced voltage has a direct-current component. The vehicle-mounted superconducting magnet is excited, and attenuation of magnet current is compensated. According to the invention, efficient and stable non-contact direct current compensation of the vehicle-mounted superconducting magnet is realized.