TSTC conductor having high current-carrying capacity and cable including same

Abstract

The present application relates to the technical field of superconducting electrical engineering, and particularly provides a TSTC conductor having a high current-carrying capacity and a cable including same. The TSTC conductor comprises: a conductor framework, inside which a cooling medium channel is provided; and at least one groove group, which is arranged on the conductor framework, wherein at least one of the at least one groove group comprises a plurality of grooves that can accommodate multiple layers of superconducting tapes. By means of such a configuration, the current-carrying capacity of a TSTC conductor can be improved by combining a plurality of grooves. On this basis, when multiple strands of TSTC conductors need to be combined to enhance the current-carrying capacity of a high-temperature superconducting conductor, this enhancement is expected to be achieved by using the new TSTC conductor provided in the present application.

Description

TSTC conductor with high current carrying capacity and cable containing the same Technical Field

[0001] The present application relates to the field of superconducting electrical technology, and in particular to a TSTC conductor with high current carrying capacity and a cable containing the conductor. Background Art

[0002] With the development of superconducting material technology, high-current-carrying superconducting conductors based on second-generation high-temperature superconducting tapes have gradually become the main form of superconducting cable. Specifically, compared with the first-generation high-temperature superconducting tapes using the precious metal Ag, the REBCO (Rare Earth Barium Copper Oxide) coated conductors of the second-generation high-temperature superconducting tapes have higher critical temperatures, critical current densities, and critical magnetic fields, allowing them to be used in higher temperature and magnetic field environments. In addition, the second-generation high-temperature superconducting tapes also have the advantage of lower costs. Therefore, they play an important role in improving power systems and have become one of the research hotspots of superconducting materials internationally.

[0003] Currently, high-temperature superconducting conductors in high-temperature superconducting cables based on high-temperature superconducting materials primarily include CORC conductors, RACC conductors, and TSTC (Twisted Stacked-Tapes Cable) conductors. In RACC conductors, the transposition of the high-temperature superconducting tapes is achieved by alternating positive and negative trapezoidal patterns. Consequently, for equivalent current-carrying capacity, a larger number of high-temperature superconducting tapes are required. Furthermore, RACC conductors suffer from the drawbacks of a cumbersome manufacturing process and high cost. The main structure of a CORC conductor consists of a central core, a high-temperature superconducting tape spirally wound around the core, and a high-temperature and low-temperature resistant insulating tape wrapped around the wound tape. While RACC conductors utilize a simple winding method, they require more high-temperature superconducting tape for equivalent current-carrying capacity (compared to TSTC conductors). The structure of a TSTC conductor generally involves stacking high-temperature superconducting tapes in parallel and embedding them within a metal core conductor with spiral grooves. TSTC conductors have advantages in mechanical properties, current density, and bending properties. Taking current density as an example, at liquid nitrogen temperatures, the contact resistance of TSTC conductors is less than 10nΩ, and the critical current can reach 1.5kA (up to 10kA at liquid helium temperatures). Compared to CORC and RACC conductors, TSTC conductors consume less high-temperature superconducting tape, exhibit reduced anisotropy, and feature a relatively simple fabrication process. Therefore, they are widely used in applications such as superconducting power equipment and large, high-field superconducting magnets.

[0004] However, due to the limited current-carrying capacity of high-temperature superconducting tape itself, the combination of parallel twisting and transposition of multiple high-temperature superconducting tapes is particularly important or even quite necessary. For example, when a high-temperature superconducting conductor with greater current-carrying capacity is required, a single strand of TSTC conductor can be twisted in parallel to form a composite structure containing multiple strands of TSTC conductors, thereby increasing the current-carrying capacity of the high-temperature superconducting conductor. To increase the current-carrying capacity of current-carrying conductors, the depth of the slots is typically increased to accommodate more high-temperature superconducting tape. However, due to the strong electromagnetic force after the current flows, the distance between the bottoms of adjacent slots cannot be too close, otherwise deformation and damage are likely to occur. Furthermore, the outer diameter of the conductor cannot be increased indefinitely. This leads to certain limitations in current-carrying capacity improvements. Accordingly, it is necessary to consider the stacking method of the TSTC conductors and the structural form of the resulting high-temperature superconducting conductor.

[0005] Accordingly, this field requires a new technical solution to solve the above problems.

[0006] Summary of the Invention

[0007] In order to at least partially solve the above technical problems, the present application is proposed. Specifically, in the case where it is necessary to combine multiple strands of TSTC conductors to improve the current carrying capacity of a high-temperature superconducting conductor, the present application provides a new TSTC conductor to improve the current carrying capacity of a high-temperature superconducting conductor.

[0008] In a first aspect, the present application provides a TSTC conductor with high current-carrying capacity, the conductor comprising: a conductor skeleton having a cooling medium channel therein; and at least one groove group arranged in the conductor skeleton; wherein at least one of the at least one groove group comprises a plurality of grooves capable of accommodating multiple layers of superconducting tape.

[0009] With such a configuration, it is possible to improve the current carrying capacity of the TSTC conductor by combining a plurality of grooves.

[0010] For the above-mentioned TSTC conductor with high current carrying capacity, in a possible implementation manner, an accommodation space is formed on the conductor skeleton, and the conductor includes a partition, and the partition divides the accommodation space into a plurality of grooves.

[0011] This configuration provides a possible way to form multiple grooves.

[0012] For the above-mentioned TSTC conductor with high current carrying capacity, in a possible implementation manner, the conductor includes a support frame, and the groove and the support frame enclose a placement position capable of accommodating a superconducting tape.

[0013] With such a structure, a relatively closed placement position can be formed through the cooperation between the pad frame and the partition.

[0014] For the above-mentioned TSTC conductor with high current carrying capacity, in a possible implementation manner, the conductor includes a sleeve, the sleeve is located outside the conductor skeleton, and the spacer is located between the conductor skeleton and the sleeve.

[0015] This configuration provides a possible structural form of the TSTC conductor.

[0016] For the above-mentioned TSTC conductor with high current carrying capacity, in a possible embodiment, at least a portion of the partition and / or the support is made of a conductive material; and / or the support is fixedly connected to the bushing and the partition respectively.

[0017] Because anisotropy and the width of superconducting tapes cannot be arbitrarily set, separators can be made of highly conductive metals such as copper. Scaffolds can also be made of metals such as copper to increase fault current diversion capabilities, or superconducting materials (such as the superconducting tape described below) to increase current flow capacity. The collaboration between separators and scaffolds ensures the stability of the TSTC conductor.

[0018] In addition, it is understandable that those skilled in the art can determine the specific fixing method of the pad frame and the sleeve / partition according to actual needs.

[0019] For the above-mentioned TSTC conductor with high current-carrying capacity, in one possible embodiment, the partition, the support and / or the sleeve are fixedly connected by vacuum brazing; and / or the support is a roughly planar structure; and / or the support includes at least one layer of superconducting tape stacked radially along the conductor skeleton or the support is at least one layer of superconducting tape stacked radially along the conductor skeleton; and / or the thickness of the partition is a value between 0.2-0.5 mm.

[0020] The planar structure can simplify the production process of TSTC conductors. For example, a support frame comprises a planar support frame body and at least one layer of superconducting tape disposed on top of the support frame body and the groove group. For example, the outermost layer of the at least one superconducting tape is secured to the support frame body via vacuum brazing. The thickness of the separator is designed to minimize the space within the TSTC conductor while ensuring sufficient current diversion.

[0021] For the above-mentioned TSTC conductor with high current carrying capacity, in a possible embodiment, when viewed along the radial direction of the conductor skeleton, at least a portion of the multiple grooves in the groove group have different sizes and / or are not aligned relative to each other.

[0022] Taking the groove group including two grooves as an example, the cross-section of the two grooves along the radial center line of the conductor skeleton is roughly a pair of opposite sides of a parallelogram (same size, non-aligned position).

[0023] For the above-mentioned TSTC conductor with high current carrying capacity, in a possible implementation manner, the cross section of the groove along the radial direction of the conductor skeleton is rectangular, and the long sides of the rectangles of the multiple grooves corresponding to the groove group are parallel to each other.

[0024] Through such a configuration, possible structural forms of the grooves and relative positional relationships between multiple grooves are given.

[0025] For the above-mentioned TSTC conductor with high current carrying capacity, in one possible embodiment, the ends of the long sides of the rectangles corresponding to the multiple grooves of the groove group located on the radial outside are aligned with each other, and there is a difference between the ends of the long sides of the rectangles corresponding to the multiple grooves of the groove group located on the radial inside.

[0026] With such a configuration, it is possible to improve the stability of the TSTC conductor.

[0027] In a second aspect, the present application provides a cable, comprising the TSTC conductor with high current carrying capacity as described in any one of the aforementioned items.

[0028] It can be understood that the cable has all the technical effects of the TSTC conductor with high current carrying capacity described in any of the above items, which will not be described in detail here.

[0029] Additional aspects and advantages of the present invention will be set forth in part in the following description, will become apparent from the following description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] FIG1 is a schematic structural diagram of a conductor skeleton of a TSTC conductor with high current carrying capacity according to an embodiment of the present application (excluding a casing and a superconducting tape);

[0032] FIG2 is a schematic diagram showing a partial structure of a conductor skeleton of a TSTC conductor with high current carrying capacity according to an embodiment of the present application (excluding the casing and superconducting tape), mainly showing the placement space corresponding to the groove group;

[0033] FIG3 is a schematic structural diagram of a cross section of a TSTC conductor with high current carrying capacity according to an embodiment of the present application, showing a conductor skeleton, a superconducting tape, and a sleeve; and

[0034] FIG4 is an enlarged schematic diagram of a part A in FIG3 , which mainly shows the arrangement of the superconducting tape in the groove group.

[0035] In the attached figure:

[0036] 100. TSTC conductor with high current carrying capacity;

[0037] 1. Conductor skeleton;

[0038] 2. Groove group;

[0039] 21. First groove; 22. Second groove; 23. Partition; 24. Pad;

[0040] 3. Cooling medium channel;

[0041] 4. Placement space;

[0042] 5. Superconducting tape;

[0043] 6. Casing. DETAILED DESCRIPTION

[0044] Referring primarily to Figures 1 to 4, in one possible embodiment, a TSTC conductor 100 with a high current-carrying capacity includes a conductor frame 1, a plurality of groove groups 2 formed on the conductor frame 1, and a cooling medium channel 3 disposed approximately in the middle of the conductor frame along the axial direction of the conductor frame. The conductor frame 1 is formed from a metal core material and typically has a circular cross-section. The groove group 2 is a spiral groove group wound around the outside of the conductor frame. The spiral groove group primarily serves as a placement space 4 for a superconducting tape 5 (e.g., the superconducting tape may be made of yttrium barium copper oxide, bismuth strontium calcium copper oxide, or an iron-based superconductor). Liquid nitrogen, liquid helium, or other cooling medium is injected into the cooling medium channel 3 to ensure that the superconducting tape contained within the spiral groove group remains in a superconducting state, thereby ensuring the reliability of the TSTC conductor. The groove group 2 includes multiple grooves, any of which can accommodate a superconducting tape. The shape, number, positional relationship between the grooves and the conductor frame, and the positional relationship between different grooves in different groove groups may be the same or different.

[0045] In this example, the groove groups 2 include four grooves distributed along the circumference of the conductor frame 1. The four groove groups 2 are substantially identical and evenly distributed along the circumference of the conductor frame. Obviously, those skilled in the art can determine the structure of the groove groups, the number of groove groups, and the relative positions of the groove groups based on actual needs. For example, the groove groups may include three or five, etc. The structures of the groove groups can be the same or different, and the relative positions of the groove groups along the circumference of the conductor frame can also be flexibly adjusted based on actual needs.

[0046] In one possible embodiment, the groove set 2 includes a first groove 21 and a second groove 22. A partition 23 is disposed between the first groove 21 and the second groove on the circumferential side of the conductor skeleton 1. The partition 23 is disposed radially inwardly of the conductor skeleton 1, and a support 24 is disposed radially outwardly of the partition 23. As in this example, the support is a generally planar plate-like structure. A certain amount of movement is allowed between the support and the partition, which facilitates the placement of the superconducting tape and allows for a certain degree of error. The material of the partition 23 is typically copper or other conductive material (conductor) with low resistance and high hardness. In this way, in the event of a fault current, the current can be diverted through the partition. For example, in the event of a short circuit, the TSTC conductor quenches and its resistance increases sharply. Copper (for example, the material of the partition is copper) has a relatively low resistivity and can therefore bear most of the short-circuit current, thus protecting the superconducting tape. The support is primarily used to support the partition to ensure its reliability. Based on this, multiple layers of superconducting tape are placed simultaneously within each groove of the groove group to improve the current-carrying capacity of the TSTC conductor. Specifically, because the spacers are placed radially outward from the groove group and connected to the separators, the superconducting tape can be placed stably when twisted within the corresponding groove, thus preventing misalignment.

[0047] In this example, the long and short grooves in each groove group are at the same height at the top. Combined with the TSTC conductor process (after the superconducting tape is placed, a sleeve 6 is added to the outside of the TSTC conductor. The sleeve is primarily used to protect the superconducting tape. For example, the sleeve can be made of materials including, but not limited to, stainless steel, copper, aluminum, and their alloys. The gaps are then filled with solder via vacuum brazing). After the superconducting tape is stacked on the long and short grooves, the superconducting tape near the top of the two grooves may still misalign due to electromagnetic forces. Therefore, adding a support at the top between the two grooves can effectively prevent such misalignment. For example, using copper as the support material (the support body), several layers (e.g., two layers) of superconducting tape can be placed between the support body and the top of the first / second groove. This improves the current-carrying capacity of the TSTC conductor while mechanically supporting the spacer and thereby stabilizing and preventing misalignment of the superconducting tape placed in the first / second groove. As in this example, the spacer is made of two superconducting tapes stacked on top of each other.

[0048] In this example, the cross-sections of the first and second grooves 21, 22 are both roughly rectangular, with the length of the rectangle corresponding to the first groove 21 being greater than that of the rectangle corresponding to the second groove 22. For example, in this example, the rectangles corresponding to the first and second grooves 21, 22 are arranged parallel to each other along their long sides, with the partition 23 positioned between them and having approximately the same length as the long side of the rectangle corresponding to the first groove 21. The rectangles corresponding to the first and second grooves 21, 22 are aligned along one end of their long sides and staggered at the other ends, such as being aligned at their radially outer ends along the conductor frame 1 and having different lengths at their radially inner ends. In other words, the trapezoidal groove design allows for the maximum possible amount of superconducting tape to be placed on the conductor frame. At the same time, a certain distance is maintained between the bottoms of adjacent first and second grooves associated with the partitions. This significantly reduces the likelihood of damage to the conductor frame from strong electromagnetic and mechanical forces.

[0049] Taking the multiple groove groups in this example as an example, which are roughly the same and all include rectangular grooves with differences between the two long sides, the differentiated design of the long sides allows the superconducting tape to be twisted in the direction of the grooves of the rectangle with shorter edges. The grooves with longer long sides can be used for support, which improves the stability of the TSTC conductor compared to the design of equal-length rectangles.

[0050] Obviously, those skilled in the art can flexibly adjust the number of groove groups, the number of grooves contained in each groove group, the structure of each groove, the relative positions of different grooves, the form / degree of differentiated design between each groove, etc. according to actual needs. For example, the groove group includes three grooves (respectively denoted as A, B and C), which may include but are not limited to: ABC is arranged along the circumference of the conductor skeleton, A and B have no differentiated design, and C and A / B have differentiated design; C is located between A and B along the circumference of the conductor skeleton, A and B have no differentiated design, and C and A / B have differentiated design; any two of A, B, and C contain differentiated design elements relative to each other.

[0051] In one specific example, the two grooves in each groove group, namely the first groove and the second groove, have roughly rectangular cross-sections. The first groove 21 has a rectangular cross-section with a length of 8.18 mm and a width of 4 mm; the second groove 22 has a rectangular cross-section with a length of 5.99 mm and a width of 4 mm. For example, the superconducting tape can be installed by welding the superconducting tape corresponding to the long groove (the first groove) to the separator and then directly embedding it into the long groove. The superconducting tape corresponding to the short groove (the second groove) can be placed directly.

[0052] In this example, the thickness of the separator 23 is 0.2-0.5 mm (e.g., 0.3 mm). On the one hand, if the separator is too thin, the electromagnetic force exerted by the current flowing through the superconducting tape may cause the separator to fail to stabilize the conductor. On the other hand, if the separator is too thick, the groove pitch will be significantly reduced, thereby affecting the installation reliability of the superconducting tape in the groove. Therefore, the separator should be thick enough to achieve the current diversion effect while occupying as little space as possible within the TSTC conductor. For example, the separator material includes but is not limited to copper, aluminum, and other conductor materials with low resistance and high hardness.

[0053] Based on the TSTC conductor example above, the superconducting tape cross-section is 4 mm wide and 100 μm thick. This allows for 80 superconducting tapes to be placed in the long slots (i.e., the first slots) and 59 tapes to be placed in the short slots (i.e., the second slots). Two (or more) superconducting tapes can be placed above (radially outward from) each slot group to form a support frame (or, alternatively, if a separate support frame body is included, the superconducting tapes can be placed between the support frame body and the top of the slots). The number of superconducting tapes placed doesn't have to be two, but it should not be too large, e.g., it should not exceed the inner diameter of the casing. Based on the aforementioned TSTC conductor process, the superconducting tapes are brazed between the long and short slots and the casing. Placing the superconducting tape above the slot groups effectively prevents misalignment of the superconducting tapes placed below them. However, stacking too many superconducting tapes is not recommended, as this may affect current carrying capacity due to factors such as bending properties. In this way, a total of 141 superconducting tapes can be placed in each groove group of the TSTC conductor based on the above example. If it is assumed that the critical current of each superconducting tape is 120A, the critical current of the superconducting tape in each groove group can be as high as 16.92kA, and the critical current of the entire TSTC conductor can reach 67.68kA.

[0054] In addition, it is necessary to add that:

[0055] In this embodiment, the differentiated design of the grooves is given in combination with engineering practice, and is specifically embodied as follows:

[0056] (1) For example, the specifications of superconducting tapes produced by a manufacturer of high-temperature superconducting tapes (Shanghai Superconductor) mainly include three specifications with widths of 3mm, 4mm and 10mm. If other sizes are required, it is theoretically possible to achieve it, but it is necessary to re-establish the production line, and the cost will increase accordingly. If superconducting tapes of other sizes are produced by cutting, the performance of the superconducting tapes produced will be significantly reduced. In addition, the amount of superconducting tapes used in high-current scenarios is huge, and the assembly and replacement of superconducting tapes of the same specifications are relatively simple and feasible. Therefore, the differentiation of each groove in the groove group (such as the above-mentioned width differentiation or differentiation in the length direction or the groove length direction) is of course feasible in theory, that is: it is understandable that if there is a need, the specific presentation method of differentiation can be flexibly designed. However, in this example, it is described in combination with a situation that is more consistent with the actual scenario faced, that is: combining the example of "selecting a specification of superconducting tape from the existing optional widths, and assembling the same specification of superconducting tape in the first groove and the second groove of all groove groups" to describe an application example of this application.

[0057] (2) Theoretically, each groove group can include more grooves. However, more grooves mean that the top of the groove group is wider. Correspondingly, the space between the top of the groove group and the sleeve will be larger. Since this part of the space will be wasted, the depth of the grooves in the groove group and the distance between adjacent grooves will also be significantly limited. Unless the ratio between the outer diameter of the conductor skeleton and the width of the superconducting tape is very large, the design of more grooves may not increase the capacity of the superconducting tape. In addition, the bending of the conductor skeleton is quite difficult, so the probability of multiple grooves (such as more than three) being used in actual engineering is relatively small.

[0058] (3) In addition to being parallel, the relative positions of the two grooves in each groove group can also be arranged at an angle, staggered in the length direction, and other arrangements. However, such an arrangement will obviously increase the difficulty of the process. Therefore, in theory, the relative positions of the grooves can be flexibly set according to actual needs. In the case of other relative positions that need to be overcome to achieve despite the increased difficulty, the relative positions between the two grooves can also be adjusted according to actual needs.

[0059] (4) In this embodiment, the combination of the partition and the support frame will form two L-shaped support structures (one of the L-shaped support structures is used to form a first placement position corresponding to the first groove with the support frame and the placement space on the conductor frame, and the other L-shaped support structure is used to form a second placement position corresponding to the second groove with the support frame and the conductor frame). Therefore, in addition to the aforementioned brazing welding, the construction of the groove group can also be achieved by integrally forming the partition and the conductor frame. However, since the partition is very thin and considering that the first groove and the second groove are both spiral grooves, the processing difficulty of integrally forming is very large, which will bring about a significant increase in cost. In addition, the partition is easily damaged during transportation. Therefore, in this embodiment, a design method is adopted in which the conductor frame, partition, and support frame are designed separately and then fixed. Similarly, after the superconducting tape is placed in the groove group, directly welding a flat support frame on its top surface has the obvious advantage of a simpler process. That is, the planar structure of the pad has the advantage of simple process. However, in cases where there are special needs, the pad can also be changed from a planar structure to a U-shaped structure (for example, the two sides of the U-shaped structure are respectively clamped on the inner sides of the groove walls of the first groove and the second groove. Compared with the aforementioned planar structure, when the pad is a U-shaped structure, combined with the situation where the first groove and the second groove are spiral grooves, it is necessary to face the problem that it is quite difficult to align the pad into the groove wall due to the size of the gap.

[0060] It should be noted that the aforementioned problems or difficulties in other embodiments are merely used to explain the reason for describing the TSTC conductor with high current carrying capacity of the present application in conjunction with this embodiment, and are not intended to indicate that the problems or difficulties in other embodiments are therefore excluded from the TSTC conductor with high current carrying capacity 100 of the present application. More precisely, it should be understood that this embodiment is a specific example that describes the TSTC conductor with high current carrying capacity of the present application in conjunction with its advantages, which are easier to understand. The relevant elements may also be modified according to actual needs. For example, under specific needs, a certain degree of cost increase and increased process difficulty may be appropriately accepted.

[0061] It can be seen that in the preferred embodiment of the present application, in the preferred embodiment of the present invention, the grooves of the metal skeleton of the TSTC conductor are mainly designed, so that it has the advantages of a strong and stable structure, a wide range of slot placement options, easy processing, simple tape placement, and high safety. Specifically, by combining multiple grooves, it is expected that the TSTC conductor can obtain a higher current carrying capacity and current density. Under this premise, two or more rows of superconducting tapes in the same layer are prone to misalignment when subjected to mechanical and electromagnetic forces, which may cause the structure of the superconducting tape to be damaged. In response to this, for a stepped groove group containing two grooves with different lengths, a partition is provided between the two rows of superconducting tapes (corresponding to the first and second grooves) and a support is provided at the radially outer end of the middle partition, thereby ensuring that the overall structure of the groove group is more stable. Specifically, when the superconducting tape is twisted in the direction of the shorter rectangular groove (long side), the longer rectangular groove (long side) can provide support for it. Compared with two rectangular grooves of equal length (long sides), the length-differentiated design is more secure. Because TSTC conductors include multiple groove groups, and each groove group can include multiple grooves, a wider range of groove options is available for placing superconducting tape. For example, superconducting tape can be placed in three of the first grooves, or in two of the first grooves and two of the second grooves. Each first / second groove in a groove group has a rectangular cross-section, and each groove group surrounds the center of the TSTC conductor in a centrally symmetrical manner, making it easy to process and relatively simple to stack superconducting tape. Because the partition between the two grooves in each groove group acts as a diversion, TSTC conductors also have the advantage of high safety.

[0062] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solutions disclosed in the present invention without the need for creative work should be included in the scope of protection of the present invention.

Claims

1. A TSTC conductor with high current carrying capacity, characterized in that: The conductor comprises: a conductor skeleton having a cooling medium channel therein; and at least one groove set provided on the conductor skeleton; At least one of the at least one groove group includes a plurality of grooves capable of accommodating multiple layers of superconducting tapes.

2. The TSTC conductor with high current carrying capacity according to claim 1, characterized in that An accommodating space is formed on the conductor frame, and the conductor includes a partition, which divides the accommodating space into a plurality of grooves.

3. The TSTC conductor with high current carrying capacity according to claim 2, characterized in that: The conductor includes a support frame, and the groove and the support frame enclose a placement position capable of accommodating a superconducting tape.

4. The TSTC conductor with high current carrying capacity according to claim 3, characterized in that The conductor includes a sleeve, the sleeve is located outside the conductor skeleton, and the washer is located between the conductor skeleton and the sleeve.

5. The TSTC conductor with high current carrying capacity according to claim 4, characterized in that The material of at least a portion of the partition and / or the support is a conductive material; and / or The cushion frame is fixedly connected to the sleeve and the partition respectively.

6. The TSTC conductor with high current carrying capacity according to claim 5, characterized in that: The partition, the support and / or the sleeve are fixedly connected by vacuum brazing; and / or The support frame is a substantially planar structure; and / or The support comprises at least one layer of superconducting tape stacked in the radial direction of the conductor skeleton, or the support is at least one layer of superconducting tape stacked in the radial direction of the conductor skeleton; and / or The thickness of the separator is a value between 0.2-0.5 mm.

7. The TSTC conductor with high current carrying capacity according to any one of claims 1 to 6, characterized in that: When viewed along the radial direction of the conductor skeleton, at least some of the grooves in the groove group have different sizes and / or are not aligned in relative positions.

8. The TSTC conductor with high current carrying capacity according to claim 7, characterized in that The cross section of the groove along the radial direction of the conductor skeleton is rectangular, and the long sides of the rectangles of the plurality of grooves corresponding to the groove group are parallel to each other.

9. The TSTC conductor with high current carrying capacity according to claim 8, characterized in that The radially outer ends of the long sides of the rectangles of the plurality of grooves corresponding to the groove group are aligned with each other, The rectangles corresponding to the plurality of grooves of the groove group have a difference between ends of the long sides located on the radial inner side.

10. A cable, characterized in that: The cable comprises the TSTC conductor with high current carrying capacity according to any one of claims 1 to 9.

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