Annular levitation electromagnetic propulsion system and method

Abstract

The application discloses a kind of annular suspension electromagnetic propulsion systems and methods.The system includes centripetal-suspension subsystem, acceleration subsystem;The centripetal-suspension subsystem includes fixed centripetal-suspension magnetic field coil and rotatable load end annular coil;The centripetal-suspension magnetic field coil is used to generate centripetal-suspension magnetic field in annular area with certain height and width, and the centripetal-suspension magnetic field includes vertical centripetal field, and has certain suspension field in set position, to provide suspension force for the load end annular coil and load;The load end annular coil is used to connect load and drive load to rotate;The acceleration subsystem includes fixed thrust coil and force magnet;The force magnet is connected outside load end annular coil;The thrust coil is deployed on the periphery of the centripetal-suspension magnetic field coil, to generate magnetic field when energized, drive the force magnet to drive the load end annular coil to rotate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electromagnetic propulsion technology and energy storage technology, in particular to a ring-shaped suspension electromagnetic propulsion system and method. BACKGROUND

[0002] Reliable and high-energy-efficient electromagnetic propulsion technology has a revolutionary potential application value in the fields of high-speed high kinetic energy loading, pulse wind tunnel, and load transfer from the ground to space. The acceleration capacity of electromagnetic propulsion is proportional to the product of the magnetic field and the current.

[0003] The current electromagnetic propulsion technology is mainly linear propulsion, which is mainly applied in the fields of magnetic levitation trains and electromagnetic pry. Taking the magnetic levitation train as an example, in a typical technical route, the forces of suspension, propulsion and guidance of the train are generated by the interaction of the on-board magnet and the corresponding coil on the ground track end, and the generation of the suspension force is based on different principles such as electromagnetic suspension, electrodynamic suspension, and high-temperature superconducting flux pinning suspension.

[0004] The typical representative of the ring-shaped propulsion technology is the rocket rotating launch technology scheme proposed by the American Spinlaunch company. This technology is expected to launch the rocket after accelerating it to 5000 kilometers per hour in a ring-shaped vacuum track, so as to reduce the cost of launching the rocket. When the rocket accelerates in the ring track, it uses a high-strength carbon fiber cantilever to overcome the huge centrifugal force.

[0005] In the linear electromagnetic propulsion system, the load can only be accelerated once. Limited by the size of the device, the linear electromagnetic propulsion system requires high power or energy storage system, which needs to have a large power output in a short time. In addition, limited by the current-carrying capacity of conventional conductors, its propulsion capacity still needs to be greatly improved. In the rotating launch technology scheme proposed by the Spinlaunch company, the mass and speed of the load will be greatly limited by the mechanical strength of the cantilever. SUMMARY

[0006] In view of the problems in the prior art, the purpose of the present application is to provide a ring-shaped suspension electromagnetic propulsion system and method. The electromagnetic propulsion system is changed to a ring shape, so that the load can be accelerated multiple times in the ring. The power demand for single acceleration can be greatly reduced, and the acceleration capacity of the system is greatly improved. If superconducting technology is used at the same time, the strong magnetic field provided by the superconducting magnet and the large current of the superconducting material interact with each other, which can provide a very high centripetal force for the high-speed suspension and rotation of the load, and it is expected to improve the electromagnetic propulsion capacity by 1-2 orders of magnitude. The application of high-current and low-loss superconducting technology, combined with the suspension and vacuum acceleration environment, can greatly reduce the energy consumption of the system.

[0007] The annular suspension electromagnetic propulsion system of the present application is characterized in that it comprises a centripetal-suspension and acceleration subsystem; wherein the centripetal-suspension subsystem utilizes electromagnetic force to generate an annular centripetal-suspension magnetic field, so that the load can be repeatedly accelerated by the acceleration subsystem until a predetermined speed is reached.

[0008] 1) The centripetal-suspension subsystem is composed of fixed centripetal-suspension magnetic field coils and rotatable load end annular coils. Wherein:

[0009] a) The centripetal-suspension magnetic field coils are composed of a set of specially arranged annular coils, their power supply and control devices, and are fixed to the ground. The set of annular coils can generate a specific magnetic field configuration in an annular area with a certain height and width

[0010] (the centripetal-suspension magnetic field). The magnetic field mainly includes a vertical magnetic field component (centripetal field) and a certain radial magnetic field component (suspension field) at a set position. According to the direction of the current, for example, the radial magnetic field component is radially inward when deviating from the geometric center upward, and radially outward when deviating from the geometric center downward, thereby providing self-stabilizing suspension force. Figure 2

[0011] b) The load end annular coil comprises a set of annular superconducting coils, their power supply and control devices, and is charged before the acceleration system is operated. Then the two ends of the coil are connected through superconducting joints with extremely low resistance to realize closed-loop operation during acceleration.

[0012] c) The load end annular coil is placed at a set position in the centripetal-suspension magnetic field to ensure stable suspension force, and can return to the preset working position when a slight deviation occurs. The current of the coil generates centripetal force to offset the centrifugal force generated by the rotation of the load end annular coil and the load, and interacts with the suspension field to generate suspension force to offset the gravity of the load end annular coil and the load. The set position is determined according to the magnetic field configuration, the gravity of the load end annular coil, the current of the load end annular coil, etc., and can realize stable suspension. According to specific parameters, there will be great changes; the current applied to the load end annular coil is mainly determined by the required centripetal force, and as for the suspension force, if the magnetic field configuration is designed properly, for different load masses, it can be adjusted by the working position; the gravity includes the gravity of the object to be accelerated (load) + the gravity of the load end annular coil.

[0013] 2) The acceleration subsystem is composed of thrust coils fixed to the ground and force magnets connected to the load end annular coil. Wherein:

[0014] a) The force magnets are connected to the load end annular coil through a cantilever installed on the outer side of the load end annular coil, and the whole is located outside the centripetal-suspension coil.

[0015] ​b) The force-bearing magnet can be a permanent magnet or a superconducting magnet operating in closed loop.

[0016] c) The thrust coil comprises one or more sets of coils and its power supply and control devices, fixed on the ground, connected to the power supply during operation, and adjusts the frequency of the current waveform according to the speed of the load / end coil, driving the force-bearing magnet to rotate the load / end annular coil through magnetic field interaction.

[0017] d) The accelerated load is also connected to the load / end annular coil through a cantilever, which can share the cantilever with the force-bearing coil,

[0018] or use a separate cantilever.

[0019] The technical solution of the present application is:

[0020] A ring-shaped levitation electromagnetic propulsion system, characterized in that it comprises a centripetal-levitation subsystem and an acceleration subsystem.

[0021] The centripetal-levitation subsystem comprises fixed centripetal-levitation magnetic field coils and a rotatable load / end annular coil.

[0022] The centripetal-levitation magnetic field coils are used to generate a centripetal-levitation magnetic field in a ring-shaped area with a certain height and width, which contains a centripetal field in the vertical direction and a certain levitation field at a set position, providing levitation force for the load / end annular coil and the load.

[0023] The load / end annular coil is used to connect and rotate the load, and when energized, the current interacts with the centripetal field to generate a centripetal force to offset the centrifugal force generated by the rotation of the load / end annular coil and the load, and the current interacts with the levitation field to generate a levitation force to offset the gravity of the load / end annular coil and the load, thereby rotating in the area centered on the set position through the drive of the acceleration subsystem.

[0024] The acceleration subsystem comprises fixed thrust coils and force-bearing magnets; the force-bearing magnets are connected outside the load / end annular coil; the thrust coils are deployed on the periphery of the centripetal-levitation magnetic field coils to generate a magnetic field when energized, driving the force-bearing magnets to rotate the load / end annular coil.

[0025] Furthermore, the centripetal-levitation magnetic field coil includes two sets of coaxially placed ring coils, a first set of ring coils located inside and a second set of ring coils located outside, forming a ring region with a certain height and width between the first set of ring coils and the second set of ring coils; when the ring coils are energized, a centripetal field in the vertical direction is generated in the ring region, and a certain levitation field is generated at a set position, wherein the current direction in the first set of ring coils is opposite to the current direction in the second set of ring coils.

[0026] Furthermore, the first group of ring coils includes at least two vertically arranged ring coils, and the second group of ring coils includes at least two vertically arranged ring coils; the set position is the center position of the ring region.

[0027] Furthermore, the load-side loop coil includes a set of loop superconducting coils, a power supply module, and a control device. The two ends of the load-side loop coil are connected through a superconducting connector to achieve closed-loop operation during acceleration. The power supply module is used to supply power to the loop superconducting coil, and the control device is used to control the current output of the power supply module.

[0028] Furthermore, the force-bearing magnet is a permanent magnet or a superconducting magnet operating in a closed loop.

[0029] Furthermore, the load is connected to the outside of the load-end annular coil via a cantilever.

[0030] Furthermore, the acceleration subsystem includes at least a pair of symmetrically deployed thrust coils and a pair of force-receiving magnets symmetrically connected to the outside of the load-end ring coil.

[0031] A method for annular levitation electromagnetic propulsion, comprising the following steps:

[0032] The current of the centripetal-levitation magnetic field coil is controlled to generate a centripetal-levitation magnetic field in an annular region with a certain height and width. The centripetal-levitation magnetic field includes a centripetal field in the vertical direction and has a certain levitation field at a set position, which is used to provide levitation force for the load-end annular coil and the load.

[0033] The load-end loop coil is placed at the set position, and a load is connected to its outside; the current of the load-end loop coil is controlled so that the current interacts with the centripetal field to generate a centripetal force to counteract the centrifugal force generated by the rotation of the load-end loop coil and the load, and the current interacts with the levitation field to generate a levitation force to counteract the gravity of the load-end loop coil and the load.

[0034] A thrust coil is deployed around the control centripetal-levitation magnetic field coil, and a force-receiving magnet is connected to the outside of the load-end annular coil; the current of the thrust coil is controlled to generate a magnetic field, which drives the force-receiving magnet to rotate the load-end annular coil.

[0035] The advantages of this invention are as follows:

[0036] This invention utilizes a ring-shaped electromagnetic propulsion structure, enabling the load to accelerate multiple times, thus significantly reducing the power requirement for a single acceleration and greatly enhancing the system's acceleration capability. Furthermore, the interaction between the strong magnetic field provided by the superconducting magnet and the high current-carrying capacity of the superconducting material provides extremely high centripetal force for the load's high-speed levitation and rotation, overcoming the limitations of material mechanical strength without the need for cantilevered or other mechanical structures to provide centripetal force. The application of high current-carrying, low-loss superconducting technology, combined with the levitation and vacuum acceleration environment, further reduces system energy consumption. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a ring-shaped levitation electromagnetic propulsion system.

[0038] Figure 2 This is a diagram based on a two-dimensional axisymmetric model.

[0039] Figure 3 This is a schematic diagram of the acceleration subsystem.

[0040] Figure 4 The diagram shows the changes in the thrust coil current waveform during one acceleration cycle and the changes in thrust felt by the load.

[0041] (a) The change in the thrust coil current waveform during one acceleration cycle.

[0042] (b) Graph of thrust variation felt by the load. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0044] Reference Figure 1 The diagram illustrates a schematic of a ring-shaped levitation electromagnetic propulsion system according to the present invention. In this embodiment, the ring-shaped levitation electromagnetic propulsion system mainly comprises a centripetal-levitation subsystem and an acceleration subsystem. The centripetal-levitation subsystem mainly includes a centripetal-levitation field coil 1 fixed to the ground and a rotatable load-end ring coil 2. The acceleration subsystem includes a thrust coil 4 fixed to the ground and a force-receiving magnet 3 connected to the load-end ring coil 2 via a cantilever 5. The load 6 is also connected to the load-end ring coil 2 via the cantilever 5.

[0045] The centripetal-levitation field coil 1 can adjust its operating current and the magnitude of the generated magnetic field according to the load speed, and is used to generate magnetic field within a ring-shaped region with a certain height and width. Figure 2 The specific magnetic field configuration shown (centripetal-levitation field), such as Figure 1 As shown, the centripetal-levitation field coil 1 includes two sets of coils placed concentrically with different radii, forming a ring-shaped region between the two sets of coils. The magnetic field formed by the centripetal-levitation field 1 within this ring-shaped region mainly consists of a vertical magnetic field component (centripetal field), and has a certain radial magnetic field component (levitation field) at positions away from the center.

[0046] After the load-end loop coil 2 is fully charged, its two ends are connected via ultra-low resistance superconducting connectors to achieve closed-loop operation. Placed at a specific position within the centripetal-levitation field, it requires no external charging. The current in this coil interacts with the centripetal field to generate a centripetal force that counteracts the centrifugal force generated by the rotation of the load-end loop coil and the load. It also interacts with the levitation field to generate a levitation force that counteracts the gravity of the load-end loop coil and the load. Figure 2 As shown.

[0047] The centripetal-levitation field configuration design ensures that the radial inward component of the magnetic field increases when the load-end loop coil is positioned upwards away from the axial center, and conversely, the radial outward component increases when it is positioned downwards away from the axial center. This guarantees that the levitation force increases downwards and decreases upwards as the load moves vertically, thus ensuring that the load system automatically adjusts its levitation state as the centripetal field increases, maintaining a balance between levitation force and its own weight. The centripetal-levitation field configuration design also ensures that when the load coil experiences slight deviations or tilts in the vertical or horizontal directions, the electromagnetic force returns it to a stable state. Ultimately, this makes the levitation of the load system adaptive and self-stabilizing.

[0048] The acceleration subsystem consists of a thrust coil fixed to the ground and a force-receiving magnet connected to the load, such as... Figure 3 As shown.

[0049] The force-bearing magnet 3 comprises a set of permanent magnets or high-temperature superconducting coils, along with their power supply and control system. If it is a superconducting coil, after charging is complete, the two ends of the coil achieve closed-loop operation through extremely low-resistance superconducting connectors. This coil is connected to the load-end ring coil 2 via a cantilever 5 mounted on the outside of the load-end ring coil 2, and the entire coil is located outside the centripetal-levitation coil system. The force-bearing magnets 3 appear in pairs throughout the ring, with a minimum of one pair, placed symmetrically, and each pair is connected to the load-end ring coil 2 by a corresponding cantilever.

[0050] The thrust coil 4 system includes a set of normally conducting coils and its power supply and control system, which are fixed to the ground and remain connected to the power supply during operation, adjusting the frequency of the current waveform according to the load speed. Figure 4The figure shows the relationship between the current of the thrust coil and the position of the acceleration coil at the load end in this embodiment. Figure 4 It also includes the thrust force on the load. Thrust coils appear in pairs, with a minimum of one pair.

[0051] By utilizing high-temperature superconducting materials, a large stability margin can be ensured for each superconducting coil while providing a strong magnetic field and large current.

[0052] Although specific embodiments of the invention have been disclosed for illustrative purposes to aid in understanding and implementing the invention, those skilled in the art will understand that various substitutions, variations, and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the content disclosed in the preferred embodiments, and the scope of protection claimed by the invention is defined by the claims.

Claims

1. A ring-shaped levitation electromagnetic propulsion system, characterized in that, Including the centripetal-levitation subsystem and the acceleration subsystem; The centripetal-levitation subsystem includes a fixed centripetal-levitation magnetic field coil and a rotatable load-end ring coil. The centripetal-levitation magnetic field coil is used to generate a centripetal-levitation magnetic field in an annular region with a certain height and width. The centripetal-levitation magnetic field includes a centripetal field in the vertical direction and has a certain levitation field at a set position, which is used to provide levitation force for the load-end annular coil and the load. The load-end ring coil is used to connect the load and drive the load to rotate. When energized, the current and the centripetal field interact to generate centripetal force to counteract the centrifugal force generated by the rotation of the load-end ring coil and the load, and the current and the suspension field interact to generate suspension force to counteract the gravity of the load-end ring coil and the load, thereby rotating in an area centered on the set position through the drive of the acceleration subsystem. The acceleration subsystem includes a fixed thrust coil and a force-receiving magnet; the force-receiving magnet is connected to the outside of the load-end annular coil; the thrust coil is deployed around the centripetal-suspended magnetic field coil and is used to generate a magnetic field when energized, driving the force-receiving magnet to rotate the load-end annular coil. The centripetal-levitation magnetic field coil includes two sets of coaxially placed ring coils, a first set of ring coils located inside and a second set of ring coils located outside, forming a ring region with a certain height and width between the first set of ring coils and the second set of ring coils; when the ring coils are energized, a centripetal field in the vertical direction is generated in the ring region, and a certain levitation field is generated at a set position, wherein the current direction in the first set of ring coils is opposite to the current direction in the second set of ring coils; The load-side loop coil includes a set of loop superconducting coils, a power supply module, and a control device. The two ends of the load-side loop coil are connected through a superconducting connector to achieve closed-loop operation during acceleration. The power supply module is used to supply power to the loop superconducting coil, and the control device is used to control the current output of the power supply module.

2. The annular levitation electromagnetic propulsion system according to claim 1, characterized in that, The first group of ring coils includes at least two vertically arranged ring coils, and the second group of ring coils includes at least two vertically arranged ring coils; the set position is the center position of the ring region.

3. The annular levitation electromagnetic propulsion system according to claim 1 or 2, characterized in that, The applied magnet is a permanent magnet or a superconducting magnet operating in a closed loop.

4. The annular levitation electromagnetic propulsion system according to claim 1 or 2, characterized in that, The load is connected to the outside of the ring coil at the load end via a cantilever.

5. The annular levitation electromagnetic propulsion system according to claim 1 or 2, characterized in that, The acceleration subsystem includes at least one pair of symmetrically deployed thrust coils and one pair of force-receiving magnets symmetrically connected to the outside of the load-end ring coil.

6. A method for annular levitation electromagnetic propulsion, comprising the following steps: The current of the centripetal-levitation magnetic field coil is controlled to generate a centripetal-levitation magnetic field in a ring-shaped region with a certain height and width. The centripetal-levitation magnetic field includes a centripetal field in the vertical direction and has a certain levitation field at a set position, which is used to provide levitation force for the ring coil and load at the load end. The load-end loop coil is placed at the set position, and a load is connected to its outside; the current of the load-end loop coil is controlled so that the current interacts with the centripetal field to generate a centripetal force to counteract the centrifugal force generated by the rotation of the load-end loop coil and the load, and the current interacts with the levitation field to generate a levitation force to counteract the gravity of the load-end loop coil and the load. A thrust coil is deployed around the control centripetal-levitation magnetic field coil, and a force-receiving magnet is connected to the outside of the load-end annular coil; the current of the thrust coil is controlled to generate a magnetic field, which drives the force-receiving magnet to rotate the load-end annular coil. The centripetal-levitation magnetic field coil includes two sets of coaxially placed ring coils, a first set of ring coils located inside and a second set of ring coils located outside, forming a ring region with a certain height and width between the first set of ring coils and the second set of ring coils; when the ring coils are energized, a centripetal field in the vertical direction is generated in the ring region, and a certain levitation field is generated at a set position, wherein the current direction in the first set of ring coils is opposite to the current direction in the second set of ring coils; The load-side loop coil includes a set of loop superconducting coils, a power supply module, and a control device. The two ends of the load-side loop coil are connected through a superconducting connector to achieve closed-loop operation during acceleration. The power supply module is used to supply power to the loop superconducting coil, and the control device is used to control the current output of the power supply module.

7. The method according to claim 6, characterized in that, It includes at least one pair of symmetrically arranged thrust coils and a pair of force-receiving magnets symmetrically connected to the outside of the load-end ring coil.

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