CN220232843U - Superconducting magnet sectionalized excitation device - Google Patents
Superconducting magnet sectionalized excitation device Download PDFInfo
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- CN220232843U CN220232843U CN202320227267.9U CN202320227267U CN220232843U CN 220232843 U CN220232843 U CN 220232843U CN 202320227267 U CN202320227267 U CN 202320227267U CN 220232843 U CN220232843 U CN 220232843U
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- 230000005284 excitation Effects 0.000 title claims abstract description 46
- 230000004907 flux Effects 0.000 claims abstract description 31
- 239000002245 particle Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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Abstract
The utility model belongs to the technical field of superconducting magnets, and particularly relates to a sectional excitation device of a superconducting magnet, which comprises a plurality of magnetic flux pumps, a plurality of high-temperature superconducting coils and a coil support, wherein the high-temperature superconducting coils form a closed loop through a superconducting stator, the high-temperature superconducting coils are sequentially sleeved on the coil support, a Hall element is arranged on the coil support, and a superconducting switch is arranged on the superconducting stator to control the conduction state of the high-temperature superconducting coils so as to eliminate poor repulsive force in the sectional excitation process and effectively promote the industrialized application of the sectional excitation magnet.
Description
Technical Field
The utility model belongs to the technical field of superconducting magnets, and particularly relates to a segmented excitation device of a superconducting magnet.
Background
The superconducting magnet is an extremely important part of the application field of superconducting power, and compared with the traditional permanent magnet and the common electromagnet, the superconducting magnet is light in weight, small in size, capable of generating a stronger magnetic field and extremely low in loss. Superconducting magnets are key components of various superconducting devices, providing a magnetic field of high strength and high stability. The superconducting magnet needs to operate in a continuous current mode, and a magnetic flux pump is used as a contactless power supply, which is an advanced superconducting magnet power supply technology that injects a direct current into a closed loop formed by the superconducting stator and the magnet, while compensating for current decay due to magnetic flux creep and welding resistance. Compared with the traditional contact type direct current power supply, the cost and the energy consumption are greatly reduced. The sectional excitation is a method for exciting a plurality of magnets by adopting a plurality of power supplies, and is an excitation mode capable of providing different working currents for different superconducting coils. However, in the implementation process of the sectional excitation, because the excitation sequence of each coil is divided successively, the magnet excited first can generate huge induction current with the adjacent magnet due to the change of the magnetic field intensity, so that a magnetic field opposite to the coil excited first is generated, and huge repulsive force is generated between the magnet excited first and the adjacent coil, and the repulsive force can cause huge potential safety hazard.
In view of the above, the utility model provides a segmented excitation device of a superconducting magnet, which is used for eliminating poor repulsive force in the segmented excitation process and effectively promoting the industrialized application of the segmented excitation magnet.
Disclosure of Invention
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model provides a superconducting magnet segmentation excitation device, includes a plurality of magnetic flux pumps, a plurality of high temperature superconducting coils and coil bracket, high temperature superconducting coils passes through superconducting stator and connects the formation closed loop, high temperature superconducting coils cup joints in proper order on the coil bracket, be provided with hall element on the coil bracket, be provided with superconducting switch on the superconducting stator, in order to control high temperature superconducting coils's conduction state.
Further, the superconducting stator is arranged at an air gap of the magnetic flux pump, and the superconducting switch is tightly attached to the surface of the superconducting stator so as to switch the superconducting state of part of the superconducting stator.
Furthermore, the superconducting stator is made of a high-temperature superconducting ReBCO strip.
Further, the superconducting switch comprises a mechanical superconducting switch, a thermal control type superconducting switch, a magnetic control type superconducting switch, a flow control type superconducting switch and/or a high-energy particle injection type superconducting switch.
Further, the coil bracket comprises a plurality of stand columns, a first positioning disk and a second positioning disk, wherein the stand columns are placed in parallel, and the first positioning disk and the second positioning disk are arranged on the end surfaces of the stand columns; the high-temperature superconducting coil is provided with a through hole for the upright post to pass through, so that the high-temperature superconducting coil is sleeved on the upright post.
Further, a holder is also included to secure the high temperature superconducting coil to the coil support.
Further, the fixing device may be fixing pieces arranged on the upright posts of the coil support, the number of the upright posts is two, the fixing pieces are arranged along the diameter of the high-temperature superconducting coil, the fixing pieces are rectangular, through holes for the upright posts to pass through are formed in the fixing pieces, and the fixing pieces are fixedly connected with the upright posts; the fixing piece is arranged at a position of the high-temperature superconducting coil, which is close to the first positioning disc and/or the second positioning disc.
Further, the system also comprises a control module; the control module comprises a first control unit, a second control unit and a third control unit; the first control unit comprises a resistor, a comparator and a triode; the positive electrode of the input end of the comparator L1 is connected with the Hall element, the negative electrode is connected with the resistor R1 and the ground, and the output end of the comparator L1 is connected with the base electrodes of the triode Q1 and the triode Q2; the other end of the resistor R1 is connected with a power supply VCC; the collector of the triode Q1 is connected with a power supply VCC, and the emitter is connected with a superconducting switch C3 and the emitter of the triode Q2; the collector electrode of the triode Q2 is grounded; the second control unit comprises a resistor, a comparator and a triode; the positive electrode of the input end of the comparator L2 is connected with the Hall element, the negative electrode is connected with the resistor R2 and the resistor R3, and the output end of the comparator L2 is connected with the base electrodes of the triode Q3 and the triode Q4; the other end of the resistor R2 and the collector electrode of the triode Q3 are connected with a power supply VCC; the other end of the resistor R3 and the collector electrode of the triode Q4 are grounded; the emitter of the triode Q3 is connected with the emitter of the triode Q4, the superconducting switch C2 and the superconducting switch C4; the third control unit comprises a resistor, a comparator and a triode; the positive electrode of the input end of the comparator L3 is connected with the Hall element, the negative electrode is connected with the resistor R4 and the resistor R5, and the output end of the comparator L3 is connected with the base electrodes of the triode Q5 and the triode Q6; the other end of the resistor R4 and the collector electrode of the triode Q5 are connected with a power supply VCC; the other end of the resistor R5 and the collector electrode of the triode Q6 are grounded; the emitter of the triode Q5 is connected with the emitter of the triode Q6, the superconducting switch C1 and the superconducting switch C5.
Further, the superconducting switch C1 is used for controlling the superconducting state of the high-temperature superconducting coil A1, the superconducting switch C2 is used for controlling the superconducting state of the high-temperature superconducting coil A2, the superconducting switch C3 is used for controlling the superconducting state of the high-temperature superconducting coil A3, the superconducting switch C4 is used for controlling the superconducting state of the high-temperature superconducting coil A4, and the superconducting switch C5 is used for controlling the superconducting state of the high-temperature superconducting coil A5; when the high-temperature superconducting coil A3 reaches the critical current of the coil, the comparator L2 is conducted; when the high temperature superconducting coils A2 and A4 reach the critical current of the coils, the comparator L3 is turned on.
Further, a plurality of high-temperature superconducting coils are connected in series to form high-temperature superconducting coil sets, and each high-temperature superconducting coil set is provided with one superconducting switch.
The utility model has the following advantages and beneficial effects:
the utility model can effectively eliminate the bad repulsive force in the sectional excitation process of the high-temperature superconducting coil on the premise of not affecting the performance of the high-temperature superconducting coil, realizes the safe and reliable excitation process of the sectional excitation magnet, and promotes the further industrialized application of the multi-power sectional excitation magnet technology.
Drawings
FIG. 1 is an exemplary schematic diagram of a segmented excitation device for a superconducting magnet provided by the present utility model;
FIG. 2 is an exemplary schematic diagram of a flux pump excitation high temperature superconducting coil provided by the present utility model;
FIG. 3 is an exemplary schematic view of a holder provided by the present utility model;
FIG. 4 is an exemplary circuit diagram of a control module provided by the present utility model;
icon: 100-high-temperature superconducting coils, 200-coil supports, 300-superconducting switches, 400-magnetic flux pumps, 101-superconducting stators, 102-stator pieces and 201-Hall elements.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Because the strong magnetic field generated by the superconducting coils excited first in the segmented excitation process can induce larger reverse current in surrounding superconducting coils, and then a magnetic field opposite to the coils excited first is generated, strong repulsive force can be generated between adjacent magnets with different polarities, and the repulsive force can cause larger potential safety hazard, so that the bad repulsive force needs to be eliminated.
The segmented excitation of the superconducting magnet is to excite the plurality of magnets by the plurality of power supplies respectively, and the method has the main advantages that the critical performance of each magnet can be exerted, the optimal performance of the whole segmented excitation magnet can be ensured, the magnetic field intensity of the center of the superconducting magnet can be improved, and meanwhile, the excitation cost of the superconducting magnet is reduced.
Fig. 1 is an exemplary schematic diagram of a segmented excitation device for a superconducting magnet provided by the present utility model. As shown in fig. 1, the superconducting magnet segment exciting device comprises a plurality of magnetic flux pumps 400, a plurality of high temperature superconducting coils 100 and a coil support 200, wherein the high temperature superconducting coils 100 are connected through a superconducting stator 101 to form a closed loop, the high temperature superconducting coils 100 are sequentially sleeved on the coil support 200, a hall element 201 is arranged on the coil support 200, and a superconducting switch 300 is arranged on the superconducting stator 101 to control the conduction state of the high temperature superconducting coils 100. The coil bracket 200 comprises a plurality of stand columns, a first positioning disk and a second positioning disk, wherein the stand columns are arranged in parallel, and the first positioning disk and the second positioning disk are arranged on the end surfaces of the stand columns; the high temperature superconducting coil is provided with a through hole for the upright post to pass through so as to sleeve the high temperature superconducting coil 100 on the upright post.
The magnetic flux pump can be used as a power supply for sectional excitation, and the linear motor type magnetic flux pump is an excitation power supply special for wireless charging of the superconducting magnet, and at least one superconducting coil is excited by one magnetic flux pump power supply. A magnetic flux pump can excite a high-temperature superconducting coil or a plurality of high-temperature superconducting coils formed by series connection, and for the high-temperature superconducting coils after series connection, excitation can be realized by only one stator because only one magnetic flux pump is used for realizing excitation, and meanwhile, poor repulsive force can be eliminated by only one superconducting switch. The dc voltage is generated by interaction of a superconducting stator disposed at an air gap of the magnetic flux pump with a traveling wave magnetic field generated by the magnetic flux pump to generate a dc current in a superconducting magnet (e.g., a superconducting coil).
The superconducting segmented magnet is formed by concentrically stacking at least two superconducting double-pancake coils (high-temperature superconducting coils), and a plurality of superconducting coils which are concentrically stacked are fixed by corresponding coil supports. A single set of superconducting coils may be formed by connecting two or more superconducting coils in series, the single set of superconducting coils being excited using one excitation power supply. The high-temperature superconducting coils are wound by ReBCO high-temperature superconducting tapes, and each coil is provided with two tape wire ends which are respectively an inlet and an outlet of current. The superconductive stator and the superconductive magnet are cooled to a superconductive state by a refrigerator or liquid helium or liquid nitrogen. For more details on the high temperature superconducting coil 100, superconducting stator 101, and magnetic flux pump 400, see fig. 2 and its associated description.
Some embodiments in the specification realize the state switching of the superconducting state and the non-superconducting state of the superconducting material by utilizing the superconducting switch, so that the elimination of poor induction current is realized, and further, the poor repulsive force generated in the segmented excitation process of the superconducting magnet is eliminated, and the performance of the magnet is not influenced.
In some embodiments, superconducting switch 300 includes a mechanical superconducting switch, a thermally-controlled superconducting switch, a magnetically-controlled superconducting switch, a flow-controlled superconducting switch, and/or a high-energy particle-injected superconducting switch. The switching of superconducting state is realized by control. When the superconducting switch is turned on, the superconducting material area covered by the superconducting switch is in a quench state; when the superconducting switch is turned off, the superconducting material area covered by the superconducting switch is in a superconducting state. The control of the opening and closing of the superconducting switch may be achieved by a control module. For details of the control module, see FIG. 4 and its associated description.
In some embodiments, the superconducting magnet segment exciting apparatus further includes a holder to fix the high temperature superconducting coil 100 on the coil support 200. For more on the holder, see fig. 3, 4 and the related description thereof.
In some embodiments, the hall element 201 is disposed in the middle of the coil support 200, and the high temperature superconducting coils 100 are uniformly spaced on the coil support 200. When the high-temperature superconducting coils are uniformly distributed on the coil support, the example is given by taking the number of the segmented exciting magnets as an odd number: the number of the high-temperature superconducting coils is 5, the number of the magnetic flux pumps is 5, and the number of the superconducting switches is 5; the magnetic field center of the excitation system is made to be as close to the middle of the coil support as possible, and the magnetic flux pumps are sequentially distributed at uniform intervals horizontally to obtain the maximum utilization rate, and for convenience of explanation, the high-temperature superconducting coils, the magnetic flux pumps and the superconducting switches are numbered, and it should be noted that the numbers below are only for the embodiment, and in other embodiments, the number may not be limited to 5, for example, the number may be 1, 2, 3, … … n, and n is not less than 2. In the embodiment, the high-temperature superconducting coils are A1, A2, A3, A4 and A5 in sequence from left to right; the magnetic flux pump sequentially comprises a B2, a B4, a B5, a B3 and a B1 from left to right; the superconducting switches are C1, C2, C3, C4 and C5 in sequence from left to right. Exciting B1 to A5, exciting B2 to A1, exciting … …, and exciting B5 to A3; control of the superconducting state of C1 to A1, control of the superconducting state of C2 to A2, … …, and control of the superconducting state of C5 to A5 are performed. In other embodiments, the high temperature superconducting coils may also be arranged in a non-equidistant distribution.
In some embodiments, a plurality of high temperature superconducting coils 100 are connected in series to form high temperature superconducting coil sets, each provided with one superconducting switch 300. For example, two or more magnets may be connected in series to form a plurality of high-temperature superconducting coil sets, and poor repulsive force between the magnet sets may be eliminated by using a plurality of superconducting switches.
In some embodiments, the procedure for eliminating the poor repulsive force during the segment excitation process may be: firstly, ensuring that all superconducting switches on a superconducting stator or a superconducting strip are in an open state, namely a superconducting quench state. The flux pump B5 is then turned on, the superconducting switch C3 is turned off, and the flux pump B5 excites the coil A3. And then the magnetic flux pumps B3 and B4 are turned on, the superconducting switches C2 and C4 are turned off, the magnetic flux pumps excite the coils A2 and A4 until the critical current of the coils is reached, then the magnetic flux pumps B1 and B2 are turned on, the superconducting switches C1 and C5 are turned off, and the magnetic flux pumps excite the coils A1 and A5.
Fig. 2 is an exemplary schematic diagram of a magnetic flux pump excitation high temperature superconducting coil provided by the present utility model. As shown in fig. 2, the superconducting stator 101 is disposed at an air gap of the magnetic flux pump 400, and the superconducting switch 300 is closely attached to a surface of the superconducting stator 101 to switch a superconducting state of a portion of the superconducting stator 101. When the superconducting magnet generates induced current due to the change of the surrounding magnetic field, the superconducting material of the superconducting switch cover part can lose superconductivity by opening the superconducting switch, so that the induced current in a closed loop of the magnet is consumed. When the coil needs to be excited, the superconducting switch can be closed to restore the superconductivity of the superconducting material of the superconducting switch cover part, and then the magnetic flux pump is opened for excitation.
In some embodiments, superconducting stator 101 is selected from a high temperature superconducting ReBCO tape. The ReBCO tape includes a hastelloy layer, a ReBCO layer, and a buffer layer as a substrate. ReBCO is a superconducting material, where Re represents rare earth. The working temperature of the high-temperature superconducting magnet is below 90K.
Fig. 3 is an exemplary schematic view of a holder provided by the present utility model. As shown in fig. 3, the fixing device may be fixing pieces 102 arranged on the upright posts of the coil support 200, the number of the upright posts is two, the fixing pieces 102 are arranged along the diameter of the high-temperature superconducting coil, the fixing pieces 102 are rectangular, through holes for the upright posts to pass through are arranged on the fixing pieces 102, and the fixing pieces 102 are fixedly connected with the upright posts; the stator 102 is disposed at a position of the high temperature superconducting coil 100 near the first puck and/or near the second puck.
Fig. 4 is an exemplary circuit diagram of a control module provided by the present utility model. As shown in fig. 4, the superconducting magnet segment excitation device further includes a control module; the control module comprises a first control unit, a second control unit and a third control unit.
The first control unit comprises a resistor, a comparator and a triode; the positive electrode of the input end of the comparator L1 is connected with the Hall element 201, the negative electrode is connected with the resistor R1 and the ground, and the output end of the comparator L1 is connected with the base electrodes of the triode Q1 and the triode Q2; the other end of the resistor R1 is connected with a power supply VCC; the collector of the triode Q1 is connected with a power supply VCC, and the emitter is connected with a superconducting switch C3 and the emitter of the triode Q2; the collector of transistor Q2 is grounded.
The second control unit comprises a resistor, a comparator and a triode; the positive electrode of the input end of the comparator L2 is connected with the Hall element 201, the negative electrode is connected with the resistor R2 and the resistor R3, and the output end of the comparator L2 is connected with the base electrodes of the triode Q3 and the triode Q4; the other end of the resistor R2 and the collector electrode of the triode Q3 are connected with a power supply VCC; the other end of the resistor R3 and the collector electrode of the triode Q4 are grounded; the emitter of the triode Q3 is connected with the emitter of the triode Q4, the superconducting switch C2 and the superconducting switch C4.
The third control unit comprises a resistor, a comparator and a triode; the positive electrode of the input end of the comparator L3 is connected with the Hall element 201, the negative electrode is connected with the resistor R4 and the resistor R5, and the output end of the comparator L3 is connected with the base electrodes of the triode Q5 and the triode Q6; the other end of the resistor R4 and the collector electrode of the triode Q5 are connected with a power supply VCC; the other end of the resistor R5 and the collector electrode of the triode Q6 are grounded; the emitter of the triode Q5 is connected with the emitter of the triode Q6, the superconducting switch C1 and the superconducting switch C5.
In some embodiments, superconducting switch C1 is used to control the superconducting state of high temperature superconducting coil A1, superconducting switch C2 is used to control the superconducting state of high temperature superconducting coil A2, superconducting switch C3 is used to control the superconducting state of high temperature superconducting coil A3, superconducting switch C4 is used to control the superconducting state of high temperature superconducting coil A4, and superconducting switch C5 is used to control the superconducting state of high temperature superconducting coil A5; when the high-temperature superconducting coil A3 reaches the critical current of the coil, the comparator L2 is conducted; when the high temperature superconducting coils A2 and A4 reach the critical current of the coils, the comparator L3 is turned on.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The sectional excitation device for the superconducting magnet comprises a plurality of magnetic flux pumps, a plurality of high-temperature superconducting coils and a coil support, wherein the high-temperature superconducting coils are connected through superconducting stators to form a closed loop, the high-temperature superconducting coils are sequentially sleeved on the coil support, and Hall elements are arranged on the coil support.
2. The segmented excitation device of superconducting magnet according to claim 1, wherein: the superconducting stator is arranged at an air gap of the magnetic flux pump, and the superconducting switch is tightly attached to the surface of the superconducting stator so as to switch the superconducting state of part of the superconducting stator.
3. The segmented excitation device of superconducting magnet according to claim 2, wherein: the superconducting stator is made of a high-temperature superconducting ReBCO strip.
4. The segmented excitation device of superconducting magnet according to claim 1, wherein: the superconducting switch comprises a mechanical superconducting switch, a thermal control type superconducting switch, a magnetic control type superconducting switch, a current control type superconducting switch and/or a high-energy particle injection type superconducting switch.
5. The segmented excitation device of superconducting magnet according to claim 1, wherein: the coil bracket comprises a plurality of stand columns, a first positioning disk and a second positioning disk, wherein the stand columns are arranged in parallel, and the first positioning disk and the second positioning disk are arranged on the end surfaces of the stand columns; the high-temperature superconducting coil is provided with a through hole for the upright post to pass through, so that the high-temperature superconducting coil is sleeved on the upright post.
6. The segmented excitation device of superconducting magnet of claim 5, wherein: and a fixer for fixing the high-temperature superconducting coil on the coil support.
7. The segmented excitation device for a superconducting magnet according to claim 6, wherein: the fixing device can be fixing pieces arranged on the stand columns of the coil support, the number of the stand columns is two, the fixing pieces are arranged along the diameter of the high-temperature superconducting coil, the fixing pieces are rectangular, through holes for the stand columns to pass through are formed in the fixing pieces, and the fixing pieces are fixedly connected with the stand columns; the fixing piece is arranged at a position of the high-temperature superconducting coil, which is close to the first positioning disc and/or the second positioning disc.
8. The segmented excitation device of superconducting magnet according to claim 1, wherein: the system also comprises a control module; the control module comprises a first control unit, a second control unit and a third control unit;
the first control unit comprises a resistor, a comparator and a triode;
the positive electrode of the input end of the comparator L1 is connected with the Hall element, the negative electrode is connected with the resistor R1 and the ground, and the output end of the comparator L1 is connected with the base electrodes of the triode Q1 and the triode Q2;
the other end of the resistor R1 is connected with a power supply VCC;
the collector of the triode Q1 is connected with a power supply VCC, and the emitter is connected with a superconducting switch C3 and the emitter of the triode Q2;
the collector electrode of the triode Q2 is grounded;
the second control unit comprises a resistor, a comparator and a triode;
the positive electrode of the input end of the comparator L2 is connected with the Hall element, the negative electrode is connected with the resistor R2 and the resistor R3, and the output end of the comparator L2 is connected with the base electrodes of the triode Q3 and the triode Q4;
the other end of the resistor R2 and the collector electrode of the triode Q3 are connected with a power supply VCC;
the other end of the resistor R3 and the collector electrode of the triode Q4 are grounded;
the emitter of the triode Q3 is connected with the emitter of the triode Q4, the superconducting switch C2 and the superconducting switch C4;
the third control unit comprises a resistor, a comparator and a triode;
the positive electrode of the input end of the comparator L3 is connected with the Hall element, the negative electrode is connected with the resistor R4 and the resistor R5, and the output end of the comparator L3 is connected with the base electrodes of the triode Q5 and the triode Q6;
the other end of the resistor R4 and the collector electrode of the triode Q5 are connected with a power supply VCC;
the other end of the resistor R5 and the collector electrode of the triode Q6 are grounded;
the emitter of the triode Q5 is connected with the emitter of the triode Q6, the superconducting switch C1 and the superconducting switch C5.
9. The segmented excitation device of superconducting magnet of claim 8, wherein: the superconducting switch C1 is used for controlling the superconducting state of the high-temperature superconducting coil A1, the superconducting switch C2 is used for controlling the superconducting state of the high-temperature superconducting coil A2, the superconducting switch C3 is used for controlling the superconducting state of the high-temperature superconducting coil A3, the superconducting switch C4 is used for controlling the superconducting state of the high-temperature superconducting coil A4, and the superconducting switch C5 is used for controlling the superconducting state of the high-temperature superconducting coil A5;
when the high-temperature superconducting coil A3 reaches the critical current of the coil, the comparator L2 is conducted;
when the high temperature superconducting coils A2 and A4 reach the critical current of the coils, the comparator L3 is turned on.
10. The segmented excitation device of superconducting magnet according to claim 1, wherein: and a plurality of high-temperature superconducting coils are connected in series to form high-temperature superconducting coil groups, and each high-temperature superconducting coil group is provided with one superconducting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320227267.9U CN220232843U (en) | 2023-02-14 | 2023-02-14 | Superconducting magnet sectionalized excitation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320227267.9U CN220232843U (en) | 2023-02-14 | 2023-02-14 | Superconducting magnet sectionalized excitation device |
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| CN220232843U true CN220232843U (en) | 2023-12-22 |
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