CN112309588A - Resonance magnetic disturbance coil suitable for magnetic confinement fusion device and implementation method - Google Patents
Resonance magnetic disturbance coil suitable for magnetic confinement fusion device and implementation method Download PDFInfo
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- CN112309588A CN112309588A CN202011083605.3A CN202011083605A CN112309588A CN 112309588 A CN112309588 A CN 112309588A CN 202011083605 A CN202011083605 A CN 202011083605A CN 112309588 A CN112309588 A CN 112309588A
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- G—PHYSICS
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- G—PHYSICS
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- G21B1/05—Thermonuclear fusion reactors with magnetic or electric plasma confinement
- G21B1/057—Tokamaks
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- H—ELECTRICITY
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/202—Electromagnets for high magnetic field strength
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Abstract
The invention discloses a novel resonance magnetic disturbance coil suitable for a magnetic confinement fusion device. Each group of coils comprises two closed loops, a circuit in each closed loop is provided with a plurality of turns of coils which are symmetrical up and down and provided with a plurality of current interfaces, the coils are flexibly connected, and disturbing magnetic fields with different spectrum types can be generated after the coils are electrified. The coil adopts the design of hollow water-cooling pipeline, can be under the heavy current condition long-time stable work. The invention utilizes the principle of externally adding magnetic disturbance to control the boundary local mode, generates a local disturbance magnetic field with high polar modulus and wide ring modulus spectral pattern characteristics and enough strength by using the coil, reduces the disturbance of the coil to the core plasma, and effectively widens the working window of the resonant magnetic disturbance coil for active control and boundary local mode inhibition. The magnetic confinement nuclear fusion device can work on the magnetic confinement nuclear fusion device, has a simple structure, is easy to install, occupies a small space, has reliable performance, and is an important scheme for enriching the control of a boundary local area model.
Description
Technical Field
The invention relates to the field of magnetic confinement plasma, in particular to a resonance magnetic disturbance coil suitable for a magnetic confinement fusion device and an implementation method.
Background
The reaction raw materials of the controlled nuclear fusion are mainly deuterium and tritium, the reserves in the nature are rich, the reaction products are free of pollution and radioactivity, and the reaction safety is high, so the controlled nuclear fusion is considered to be a perfect scheme for future human energy development. In the current research, magnetic confinement fusion is the most promising way to realize the utilization of the fusion energy.
The major magnetic confinement fusion devices in the world currently include two types, namely star simulators and tokamaks. The tokomak device operating in the high confinement mode can generate strong magnetofluid instability at the boundary, namely boundary local mode (ELM), and the explosion can cause a large amount of energy in the core to be discharged, so that the first wall of the device and the target plate material can not bear heat load. Therefore, controlling the boundary local mode is an important subject of the current magnetic confinement fusion research.
The application of resonant magnetic perturbations is the dominant method of controlling boundary local modes, and its effectiveness has also been demonstrated on many tokomak devices. The method for externally adding the resonance magnetic disturbance is characterized in that the resonance magnetic disturbance is generated by an externally added resonance magnetic disturbance coil, the plasma transport of the boundary can be increased, and the pressure gradient of the platform base region is reduced, so that the boundary local mode is inhibited or relieved to reduce the peak heat flow amplitude of the boundary, and the method has the characteristics of repeatability, high reliability and the like.
The resonance magnetic disturbance coil structures on the existing large magnetic confinement fusion devices are mostly similar, a plurality of rectangular coils surrounding the devices for one circle are distributed on the ring direction, the coils are distributed on the upper and lower sides of the low field side in the upward direction, and the external disturbance magnetic field generated after the current is switched on is realized on the large devices such as DIII-D, JET, MAST and ASDEX-U, EAST at present95Within the window, mitigation and suppression of boundary local modes.
A plurality of rectangular coils surrounding the device in a circle are distributed on a resonance magnetic disturbance coil on the existing magnetic confinement fusion device in the circumferential direction, and are distributed on the upper and lower sides of a low field side in the upward direction, so that the occupied space is large; the polar direction modulus of the disturbance magnetic field is low, and the core plasma is disturbed to a certain degree, so that fusion reaction is not facilitated to be realized; and the disturbance mode to the plasma is mostly limited within n-3, mainly emphasizes the disturbance of a single low-order mode, and the working window is limited. In fusion plasma, the expressions of instability such as an air balloon mode, a tearing mode and the like do not exist in the form of a single support mode, but are coupled in multiple modes, particularly in a high-order mode. It is therefore necessary to develop a resonant magnetic perturbation coil with broad spectral characteristics.
Disclosure of Invention
The technical problem of the invention is solved: the novel resonance magnetic disturbance coil suitable for the magnetic confinement fusion device is provided, the working window of the existing resonance magnetic disturbance coil can be widened, various disturbance modes are provided, the disturbance to the core plasma is smaller, the occupied space is smaller, and a new means is provided for controlling a boundary local mode and improving the boundary transport of the boundary plasma.
In order to achieve the purpose of tree climbing, the invention adopts the technical scheme that:
a resonance magnetic disturbance coil suitable for a magnetic confinement nuclear fusion device is characterized in that:
two groups of coils are uniformly distributed on the annular direction of the magnetic confinement nuclear fusion device, and each group of coils is positioned on the middle plane at the low field side, namely the middle plane at the outer side of the magnetic confinement fusion device; in the polar direction of the magnetic confinement nuclear fusion device, each group of coils is arranged in sequence, each group of coils comprises two closed loops, and a circuit in each closed loop is provided with a plurality of turns of coils so as to enhance the disturbance intensity of the coils to plasmas;
the two closed loop structures of each group of coils are symmetrical up and down, the closed loops are respectively formed by two reversely wound round-corner rectangular coils, and the directions of magnetic fields generated by the two round-corner rectangular coils after the coils are electrified are opposite due to the opposite surrounding directions;
each closed loop is provided with two current interfaces which are positioned in the middle of two modules generating disturbing magnetic fields, the current interface of the upper half part is positioned above, and the current interface of the lower half part is positioned below; the group of coils has four current interfaces in total, and the current interfaces are arranged according to the relative directions of the currents in the two closed loops; the coil has two modes of operation: when the upper closed loop and the lower closed loop pass through currents in the same direction, namely, two current interfaces of each loop are both in upper end inflow and lower end outflow, or both in lower end inflow and upper end outflow, the coil works in a first working mode; when the upper closed loop and the lower closed loop pass through opposite currents, namely the two current interfaces of one loop are in the upper end and out of the lower end, and the two current interfaces of the other loop are opposite to the two current interfaces of the other loop and are in the lower end and out of the upper end, the coil works in a second working mode.
The angle of each group of coils expanded in the annular direction of the magnetic confinement fusion device is 5 degrees, so that the coils can be arranged between windows of the magnetic confinement fusion device, do not occupy the windows, have low requirements on the space of the magnetic confinement fusion device, and do not influence the installation and operation of other diagnostic devices.
The side surface of each group of coils is in a curved arc shape, the radian of the arc shape is consistent with that of the outermost closed magnetic surface of the magnetic confinement fusion device, so that a disturbance magnetic field generated by the coils has the largest radial component, stray and invalid magnetic fields are reduced, and the disturbance effect of the disturbance magnetic field on plasma is improved to the maximum extent.
The magnetic confinement nuclear fusion device is characterized in that a group of coils are distributed upwards at intervals of 180 degrees, and the direction of each group of coils faces to the center of a ring formed by plasmas.
The coil is designed by adopting a hollow copper pipe, deionized water is filled in the copper pipe, the outer layer of the copper pipe is wrapped by a magnesium oxide layer, and the outer part of the magnesium oxide layer is further wrapped by a stainless steel layer.
The disturbance magnetic field generated after the coil is electrified can reach the Gaussian magnitude, namely the one-thousandth magnitude of the magnetic field intensity of the EAST superconducting Tokamak ring can be reached, the disturbance magnetic field intensity is equivalent to that generated by the EAST existing resonance magnetic disturbance coil, in the ring-up direction of the magnetic confinement nuclear fusion device, the area of an action area of the coil only accounts for 1.5% -2.5% of the surface area of the outermost closed magnetic surface of the plasma, the action of the disturbance magnetic field is disturbance in a very small range relative to the plasma, and the disturbance magnetic field has obvious locality.
The two closed loop structures of each group of coils are vertically symmetrical, each closed loop is respectively formed by two reversely wound round-corner rectangular coils, a disturbing magnetic field with a radial disturbing maximum value appearing when the polar modulus is 10-15 can be generated, and the disturbing magnetic field spectrum structure has a high polar modulus characteristic, namely the disturbing magnetic field intensity is mainly distributed in a high polar modulus area; meanwhile, the radial disturbance magnetic field basically has no attenuation between the hoop moduli of 1 to 10, the later attenuation ratio is not high, the disturbance magnetic field has stronger disturbance magnetic field for the hoop moduli within 20, and the disturbance magnetic field has the characteristic of wide hoop modulus, namely the disturbance magnetic field intensity keeps higher level in a wider hoop modulus range.
The group of coils can also be composed of a plurality of closed loops, a plurality of current interfaces are reserved, the coils have a plurality of working modes, and after the coils are electrified, disturbing magnetic fields with different spectrum types can be generated according to experimental needs.
The invention discloses a method for realizing a resonance magnetic disturbance coil suitable for a magnetic confinement nuclear fusion device, which is realized by the following steps:
(1) the power supply system supplies power to the resonant magnetic disturbance coil, supplies current in the forms of steady-state current, square wave current and sine wave, the current is in the kiloampere magnitude, the coil generates a local disturbance magnetic field which is steady-state or changes along with time after being electrified, the radial component of the disturbance magnetic field has high polar direction modulus, namely, the peak value of the disturbance magnetic field after Fourier transform appears in the polar direction modulus of 10-15, and wide ring direction modulus, namely, the ring direction modulus within 20 has the characteristic of strong disturbance, the disturbance magnetic field intensity is in the Gaussian magnitude, and the region acted by the coil is local to the boundary plasma close to the coil;
(2) a group of coils are formed by two closed loops which are wound in opposite directions and are symmetrical up and down, and are distributed along the radian of the outermost closed magnetic surface of the magnetic confinement fusion device, so that the disturbance magnetic field is utilized to the maximum extent, the stray magnetic field is reduced, and the effect of the disturbance magnetic field on plasma is improved.
(3) The coil adopts the design of hollow copper pipe, leads to the deionized water in the copper pipe, and the copper pipe is outer to be wrapped up by the magnesium oxide layer, and the magnesium oxide layer outside is further wrapped up by the stainless steel layer, has guaranteed the stability of long-time work when guaranteeing insulating nature.
The invention has the beneficial effects that:
(1) the invention provides a novel resonance magnetic disturbance coil suitable for a magnetic confinement fusion device, which adopts a hollow water-cooling pipeline design, has very high insulation and heat conduction performance, and can stably work for a long time;
(2) compared with the existing resonance magnetic disturbance coil, the coil occupies a small angle in the annular direction of the magnetic confinement fusion device, the area of the region acted by the coil only occupies 1.5-2.5% of that of annular plasma, has the characteristic of strong locality, can be installed between windows of the device, does not occupy the windows of the device, has low requirement on the space of the device, and does not influence the installation and operation of other diagnostic devices;
(3) the coil is arc-shaped in the pole direction, a plurality of closed loops generating disturbance magnetic fields are arranged in the pole direction, the arc degree of the closed loops is kept the same as that of the outermost closed magnetic surface, the disturbance magnetic fields generated by the coil can be utilized at the highest efficiency, the disturbance field spectrum type of the coil has the characteristic of high polar direction modulus (the peak value of the disturbance magnetic field after Fourier transformation appears in the polar direction modulus of 10-15), and compared with the existing resonance magnetic disturbance coil, the disturbance of the coil to core plasma is reduced;
(4) the intensity of a disturbance magnetic field generated by the coil is equivalent to that of the existing resonance magnetic disturbance coil, and compared with the existing single low-order mode disturbance resonance magnetic disturbance coil limited within 3, the disturbance spectrum has the characteristic of wide ring-direction modulus (strong disturbance to the ring-direction modulus within 20), so that the working window of active control and boundary local mode inhibition of the resonance magnetic disturbance coil is effectively widened.
Drawings
FIG. 1 is a schematic diagram of a set of resonant magnetic perturbation coils in accordance with the present invention;
FIG. 2 is a schematic diagram of the direction of a current and a direction of a magnetic field generated in a first operating mode of the resonant magnetic perturbation coil according to the present invention;
FIG. 3 is a schematic diagram of the direction of the current and the direction of the generated magnetic field in the second operating mode of the resonant magnetic perturbation coil of the present invention;
FIG. 4 is a schematic diagram of the relative positions of the resonant magnetic perturbation coil and the magnetic confinement nuclear fusion plasma in the present invention, with the definitions of hoop and polar directions indicated;
FIG. 5 is a magnetic disturbance spectrum plot of a set of resonant magnetic disturbance coils of the present invention, the coils employing a first mode of operation.
Reference numbers in the figures: 1. 2, 3 and 4 are coil current interfaces; 5. 6 is a resonance magnetic disturbance coil; and 7 is magnetic confinement nuclear fusion plasma.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention without creative efforts.
As shown in figure 1, the resonance magnetic disturbance coil suitable for the magnetic confinement nuclear fusion device has four modules which generate disturbance magnetic fields in the upward direction, and the coil in each module is wound by a plurality of turns of current pipelines in a round corner rectangular shape. The coil is divided into two closed loops which are symmetrical up and down, and the maximum current in each closed loop is 5 kiloamperes (constant or modulation). In the same closed loop, the winding directions of the upper and lower module coils generating the disturbing magnetic field are opposite, the direction of the disturbing magnetic field generated after electrification is also opposite, and the magnitude of the magnetic field is 0.01T magnitude order. Each current loop has two current interfaces, which are respectively located in the middle of the module, with the current interfaces 1 and 3 of the upper module being on top and the current interfaces 2 and 4 of the lower module being on bottom.
There are two modes of operation, depending on the relative direction of the two closed loop currents in a set of coils. As shown in fig. 2, when the two sets of coils are energized with currents in the same direction, i.e., the currents flow in from the interfaces 1, 4 and flow out from the interfaces 2, 3, the directions of the magnetic fields of the four modules are inward, outward, inward and outward (toward the plasma, it is called inward, and vice versa, it is called outward, and the same applies hereinafter) from top to bottom, and this energizing manner is called the first operating mode of the coils. As shown in fig. 3, when two sets of coils are energized with reverse currents, that is, currents flow in from the interfaces 1, 3 and flow out from the interfaces 2, 4, the directions of the magnetic fields of the four modules are inward, outward and inward in sequence from top to bottom, and this energizing manner is referred to as a second operating mode of the coils. B in FIGS. 2 and 31、B2、B3、B4Magnetic fields generated by respective parts of the coil, I1、I2Is the current passing in the coil.
As shown in fig. 1, the coil body is designed by a hollow copper tube, deionized water is introduced into the middle of the copper tube, and heat generated by joule law in the pipeline during electrification is taken away. The outer layer of the copper pipe is wrapped with the compressed magnesium oxide powder, and the outermost layer is wrapped with the stainless steel, so that the insulativity between pipelines is ensured.
As shown in FIG. 4, the coil is placed in the mid-plane of the low-field side of the magnetic confinement fusion device, i.e., the outer middle of the fusion plasma, as close to the plasma as possible. The coil is in a curved arc shape when viewed from the side, the arc is consistent with the arc of the outermost closed magnetic surface of the magnetic confinement fusion device, so that a disturbance magnetic field generated by the coil has the largest radial component, stray and invalid magnetic fields are reduced, and the disturbance effect of the disturbance magnetic field on plasma is improved to the maximum extent. A plurality of groups of coils can be distributed on the ring, two groups are taken as an example, one group of coils are distributed on the ring at intervals of 180 degrees, and the directions of the coils face to the center of the ring formed by the plasma.
As shown in fig. 5, the m-coordinate is the polar modulus, the n-coordinate is the circumferential modulus,
coordinate representation of the magnetic surface of the disturbing magnetic field generated by the coil
Distribution of fourier components above. The coil is operated in a first operating mode, i.e. current flows in from the interfaces 1, 4 and flows out from the interfaces 2, 3, and 5kA direct current is passed through the coil. With the change of the polar modulus, two peaks exist on the magnetic disturbance spectrum, and the polar modulus corresponding to the main maximum peak is higher, that is, the disturbance magnetic field has the characteristic of high polar modulus. Meanwhile, it can be seen that the disturbance magnetic field has no attenuation basically in the circumferential modulus between 1 and 10, the rate of attenuation is slow after the value is greater than 10, and the disturbance magnetic field has a strong disturbance magnetic field for the circumferential modulus within 20, that is, the disturbance magnetic field has the characteristic of a wide circumferential modulus.
In conclusion, the invention adopts the design of the hollow water-cooling pipeline, has very high insulating and heat conducting performances and can stably work for a long time; meanwhile, the coil loop occupies a small angle upwards and occupies a small space; the coil pole is upwards in an arc shape, the same radian with the outermost closed magnetic surface is kept, and a disturbing magnetic field generated by the coil can be utilized at the highest efficiency; the coil is provided with a plurality of closed loops generating disturbance magnetic fields in the polar direction, the generated disturbance magnetic field intensity is equivalent to that of the existing resonance magnetic disturbance coil, and the disturbance field spectrum type has the characteristics of high polar direction modulus, wide ring direction modulus and strong locality, so that the disturbance of the coil to core plasma is reduced, and the working window of the resonance magnetic disturbance coil for active control and boundary local mode inhibition is effectively widened.
Although illustrative embodiments of the present invention have been described above to facilitate the understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all matters of the invention which utilize the inventive concepts are protected.
Claims (9)
1. A resonance magnetic disturbance coil suitable for a magnetic confinement nuclear fusion device is characterized in that:
two groups of coils are uniformly distributed on the annular direction of the magnetic confinement nuclear fusion device, and each group of coils is positioned on the middle plane at the low field side, namely the middle plane at the outer side of the magnetic confinement fusion device; in the polar direction of the magnetic confinement nuclear fusion device, each group of coils is arranged in sequence, each group of coils comprises two closed loops, and a circuit in each closed loop is provided with a plurality of turns of coils so as to enhance the disturbance intensity of the coils to plasmas;
the two closed loop structures of each group of coils are symmetrical up and down, the closed loops are respectively formed by two reversely wound round-corner rectangular coils, and the directions of magnetic fields generated by the two round-corner rectangular coils after the coils are electrified are opposite due to the opposite surrounding directions;
each closed loop is provided with two current interfaces which are positioned in the middle of two modules generating disturbing magnetic fields, the current interface of the upper half part is positioned above, and the current interface of the lower half part is positioned below; the group of coils has four current interfaces in total, and the current interfaces are arranged according to the relative directions of the currents in the two closed loops; the coil has two modes of operation: when the upper closed loop and the lower closed loop pass through currents in the same direction, namely, two current interfaces of each loop are both in upper end inflow and lower end outflow, or both in lower end inflow and upper end outflow, the coil works in a first working mode; when the upper closed loop and the lower closed loop pass through opposite currents, namely the two current interfaces of one loop are in the upper end and out of the lower end, and the two current interfaces of the other loop are opposite to the two current interfaces of the other loop and are in the lower end and out of the upper end, the coil works in a second working mode.
2. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 1 wherein: the angle of each group of coils expanded in the annular direction of the magnetic confinement fusion device is 5 degrees, so that the coils can be arranged between windows of the magnetic confinement fusion device, do not occupy the windows, have low requirements on the space of the magnetic confinement fusion device, and do not influence the installation and operation of other diagnostic devices.
3. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 1 wherein: the side surface of each group of coils is in a curved arc shape, the radian of the arc shape is consistent with that of the outermost closed magnetic surface of the magnetic confinement fusion device, so that a disturbance magnetic field generated by the coils has the largest radial component, stray and invalid magnetic fields are reduced, and the disturbance effect of the disturbance magnetic field on plasma is improved to the maximum extent.
4. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 1 wherein: the magnetic confinement nuclear fusion device is characterized in that a group of coils are distributed upwards at intervals of 180 degrees, and the direction of each group of coils faces to the center of a ring formed by plasmas.
5. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 1 wherein: the coil is designed by adopting a hollow copper pipe, deionized water is filled in the copper pipe, the outer layer of the copper pipe is wrapped by a magnesium oxide layer, and the outer part of the magnesium oxide layer is further wrapped by a stainless steel layer.
6. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 1 wherein: the disturbance magnetic field generated after the coil is electrified can reach the Gaussian magnitude, namely the one-thousandth magnitude of the magnetic field intensity of the EAST superconducting Tokamak ring can be reached, the disturbance magnetic field intensity is equivalent to that generated by the EAST existing resonance magnetic disturbance coil, in the ring-up direction of the magnetic confinement nuclear fusion device, the area of an action area of the coil only accounts for 1.5% -2.5% of the surface area of the outermost closed magnetic surface of the plasma, the action of the disturbance magnetic field is disturbance in a very small range relative to the plasma, and the disturbance magnetic field has obvious locality.
7. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 1 wherein: the two closed loop structures of each group of coils are vertically symmetrical, each closed loop is respectively formed by two reversely wound round-corner rectangular coils, a disturbing magnetic field with a radial disturbing maximum value appearing when the polar modulus is 10-15 can be generated, and the disturbing magnetic field spectrum structure has a high polar modulus characteristic, namely the disturbing magnetic field intensity is mainly distributed in a high polar modulus area; meanwhile, the radial disturbance magnetic field basically has no attenuation between the hoop moduli of 1 to 10, the later attenuation ratio is not high, the disturbance magnetic field has stronger disturbance magnetic field for the hoop moduli within 20, and the disturbance magnetic field has the characteristic of wide hoop modulus, namely the disturbance magnetic field intensity keeps higher level in a wider hoop modulus range.
8. A resonant magnetic perturbation coil suitable for use in a magnetically confined nuclear fusion device as claimed in claim 4 wherein: the group of coils consists of a plurality of closed loops, a plurality of current interfaces are reserved, the coils have various working modes, and after the coils are electrified, disturbing magnetic fields of different spectrum types can be generated according to experimental requirements.
9. A method of implementing a resonant magnetic perturbation coil suitable for use in a magnetic confinement nuclear fusion device, the method characterized by:
(1) the power supply system supplies power to the resonant magnetic disturbance coil, supplies current in the forms of steady-state current, square wave current and sine wave, the current is in the kiloampere magnitude, the coil generates a local disturbance magnetic field which is steady-state or changes along with time after being electrified, the radial component of the disturbance magnetic field has high polar direction modulus, namely, the peak value of the disturbance magnetic field after Fourier transform appears in the polar direction modulus of 10-15, and wide ring direction modulus, namely, the ring direction modulus within 20 has the characteristic of strong disturbance, the disturbance magnetic field intensity is in the Gaussian magnitude, and the region acted by the coil is local to the boundary plasma close to the coil;
(2) the group of coils consists of two closed loops which are wound in opposite directions and are symmetrical up and down, and the closed loops are distributed along the radian of the outermost closed magnetic surface of the magnetic confinement fusion device so as to utilize a disturbance magnetic field to the maximum extent, reduce a stray magnetic field and improve the effect of the disturbance magnetic field on plasma;
(3) the coil adopts the design of hollow copper pipe, leads to the deionized water in the copper pipe, and the copper pipe is outer to be wrapped up by the magnesium oxide layer, and the magnesium oxide layer outside is further wrapped up by the stainless steel layer, has guaranteed the stability of long-time work when guaranteeing insulating nature.
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Cited By (5)
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| CN112987558A (en) * | 2021-02-08 | 2021-06-18 | 中国科学院合肥物质科学研究院 | Motor motion control mechanism and method for stabilizing new classical tearing mold in nuclear fusion device |
| CN113593726A (en) * | 2021-08-06 | 2021-11-02 | 核工业西南物理研究院 | Method and device for controlling edge local area model |
| CN114849070A (en) * | 2022-07-07 | 2022-08-05 | 苏州好博医疗器械股份有限公司 | Combined electromagnetic coil |
| WO2023151493A1 (en) * | 2022-02-13 | 2023-08-17 | 吴谞冠 | Magnetic confinement-based nuclear fusion reaction vessel |
| CN117457240A (en) * | 2023-12-25 | 2024-01-26 | 中国科学院合肥物质科学研究院 | Magnetic confinement fusion reactor |
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| CN112987558A (en) * | 2021-02-08 | 2021-06-18 | 中国科学院合肥物质科学研究院 | Motor motion control mechanism and method for stabilizing new classical tearing mold in nuclear fusion device |
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| CN113593726A (en) * | 2021-08-06 | 2021-11-02 | 核工业西南物理研究院 | Method and device for controlling edge local area model |
| CN113593726B (en) * | 2021-08-06 | 2023-12-08 | 核工业西南物理研究院 | Method and device for controlling edge local mode |
| WO2023151493A1 (en) * | 2022-02-13 | 2023-08-17 | 吴谞冠 | Magnetic confinement-based nuclear fusion reaction vessel |
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| CN117457240A (en) * | 2023-12-25 | 2024-01-26 | 中国科学院合肥物质科学研究院 | Magnetic confinement fusion reactor |
| CN117457240B (en) * | 2023-12-25 | 2024-03-26 | 中国科学院合肥物质科学研究院 | Magnetic confinement fusion reactor |
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