Novel high-capacity electric energy transmission bus system and control method thereof

Abstract

The invention discloses a novel high-capacity electric energy transmission bus system and a control method thereof, belongs to the technical field of high-voltage solid insulation power transmission lines, and adopts solid insulation to replace gas insulation to solve the problems that gas insulation is poor in safety, high in operation cost, not environmentally friendly and the like. The device comprises a plurality of current carriers, and the current carriers are insulated and shielded through an insulation assembly. At least one end of the insulation assembly is located at the ground potential, the conditions of gas leakage, insulation reduction and the like can be avoided in the mode, meanwhile, the electric field of related parts can be better homogenized, and the actual use requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-voltage solid-insulated power transmission lines, and particularly relates to a novel large-capacity electric energy transmission busbar system and a control method thereof. Background Art

[0002] Currently, there is a strong demand for busbars used in electric energy transmission. However, the busbars adopted are still traditional busbar products, such as segregated phase enclosed busbars with voltage levels of 15 - 35 kV, and gas-insulated metal-enclosed transmission lines (hereinafter referred to as GIL) with voltage levels of 72.5 - 1100 kV. For these two types of busbars, insulators are used as supports. The segregated phase enclosed busbar needs to prevent condensation, while the GIL needs to prevent gas leakage, and both have extremely high airtightness requirements for the housing. Especially for the GIL, since SF6 is used as the main insulating gas, the purity requirement for the gas is extremely high. Once conductive ions such as dust and impurities are mixed during the equipment manufacturing and installation processes of the GIL, line discharge or even short circuit will be caused. The process requirements of this GIL busbar are strict, the price is high, and gas leakage needs to be monitored in real time and regular maintenance is required. And SF6 as an insulating medium is a greenhouse gas, and currently there are clear limit requirements and emission reduction targets for greenhouse gas emissions.

[0003] Currently, solid insulation is rare in power transmission lines with voltage levels of 72.5 - 1100 kV. Gas insulation is usually adopted, but gas insulation has the limitations of gas leakage hazards and non-green environmental protection, and there will be problems such as gas liquefaction and a decrease in insulation strength in extremely low-temperature environments. Therefore, a novel large-capacity electric energy transmission busbar system is needed to replace the GIL, solve the deficiencies existing in the prior art, and meet the requirements for the development of power transmission lines towards safety, reliability, and environmental friendliness. Summary of the Invention

[0004] The purpose of the present invention is to provide a novel large-capacity electric energy transmission busbar system and a control method thereof to solve the problems raised in the above background art.

[0005] A novel large-capacity electric energy transmission busbar system includes a plurality of current-carrying conductors, and the current-carrying conductors are insulated and shielded through an insulating component; at least one end of the insulating component is at ground potential.

[0006] Further, the insulating component includes a plurality of outer insulating shielding cylinders, the outer insulating shielding cylinders are provided with first capacitive insulators, and a plurality of capacitance screens are arranged inside the first capacitive insulators.

[0007] Further, when the first connection method is adopted for connection at the end of the current-carrying conductor, the first end of the outer insulating shielding cylinder is at high potential, and the second end of the outer insulating shielding cylinder is at ground potential; When the second connection method is adopted at the end of the current-carrying conductor, both the first end and the second end of the outer insulation shielding cylinder are at ground potential.

[0008] Furthermore, when the first connection method is adopted at the end of the current-carrying conductor, the lengths of several capacitance screens in the first capacitance-type insulator at the first end of the outer insulation shielding cylinder are sequentially shortened from the inside to the outside in the radial direction, and the lengths of several capacitance screens in the first capacitance-type insulator at the second end of the outer insulation shielding cylinder are sequentially increased from the inside to the outside in the radial direction; When the second connection method is adopted at the end of the current-carrying conductor, the lengths of several capacitance screens in the first capacitance-type insulators at both the first end and the second end of the outer insulation shielding cylinder are sequentially increased from the inside to the outside in the radial direction.

[0009] Furthermore, the insulation assembly further includes an insulating sleeve, the end of the current-carrying conductor is sleeved in the insulating sleeve, and the outer insulation shielding cylinder is sleeved outside the insulating sleeve.

[0010] Furthermore, the insulating sleeve is provided with a second capacitance-type insulator, and several capacitance screens are arranged in the second capacitance-type insulator, and the lengths of the several capacitance screens are sequentially shortened from the inside to the outside in the radial direction.

[0011] Furthermore, the current-carrying conductor includes several conductors, wiring terminals are provided at both ends of the conductors, and the wiring terminals of the conductors with adjacent ends are conductively connected by a flexible or rigid connection method.

[0012] Furthermore, the current-carrying conductor includes several conductors, wiring terminals are provided at both ends of the conductors, and the first wiring terminals of the conductors with adjacent ends are sleeved in the insulating sleeve, and the insulation assembly includes the insulating sleeve.

[0013] Furthermore, the current-carrying conductor includes several conductors, wiring terminals are provided at both ends of the conductors, and the second wiring terminals of the conductors close to the end of the outer insulation shielding cylinder penetrate out of the outer insulation shielding cylinder, and the insulation assembly includes the outer insulation shielding cylinder.

[0014] Furthermore, at least two outer insulation shielding cylinders are provided.

[0015] Furthermore, an expansion joint is arranged between two adjacent outer insulation shielding cylinders.

[0016] This application also provides a control method for a new large-capacity power transmission bus system, which is applied to the aforementioned new large-capacity power transmission bus system, including: Obtaining electrical information of the outer insulation shielding cylinder, where the electrical information includes at least any one of a potential value, a current value, a capacitance value, whether it is at ground potential or equipotential; Construct an electrical matrix based on the electrical information, and construct a historical electrical matrix based on the historical electrical information; Calculate the correlation coefficient between the electrical matrix and the historical electrical matrix based on the Pearson coefficient. When the correlation coefficient is within the preset range, it is judged as normal; otherwise, it is judged as abnormal; When it is judged that the electrical information is abnormal, feedback an abnormal alarm to the control system, and instruct the control system to perform abnormal processing on the aforementioned new large-capacity power transmission bus system, where the abnormal processing includes power-off processing.

[0017] Compared with the prior art, a new large-capacity power transmission bus system provided by the present invention has at least the following beneficial effects: (1) All the external insulation of the new large-capacity power transmission bus system of the present invention is connected into one body by an external insulation shielding cylinder. The end flange of the external insulation shielding cylinder is hermetically sealed at normal pressure through a first sealing ring, which is more reliable than the several-atmosphere sealing of GIL. The expansion joint can effectively solve the influence of thermal expansion and contraction and vibration of the system; after the external insulation shielding cylinders are connected into one body, they are grounded through the end flange, and the entire outer surface of the external insulation shielding cylinder is at ground potential, with high safety; in the corresponding parts of the internal cavities of the external insulation shielding cylinder and the expansion joint connection joints, a first insulating sleeve and a second insulating sleeve are provided. In the capacitive insulators of the first insulating sleeve and the second insulating sleeve, a capacitance screen matching the capacitance screen in the capacitive insulator of the external insulation shielding cylinder is provided, and the capacitance screens of the two are electrically connected, so as to better equalize the electric field of the relevant parts and meet the actual use requirements.

[0018] (2) Compared with the traditional metal separated-phase bus and GIL, the present invention has higher reliability, simple structure, low cost, no oil and no gas, is green and environmentally friendly, and has outstanding cost performance. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall split structure of the present invention; Figure 2 It is a schematic diagram of the overall sectional structure of the present invention; Figure 3 It is a schematic diagram of the second grading ring structure of the present invention; Figure 4 It is a schematic diagram of the first sealing ring structure of the present invention; Figure 5 It is a schematic diagram of the first grading ring structure of the present invention. Description of the Drawings: 100. External insulation shielding cylinder; 101. End flange; 102. First sealing ring; 103. First equipotential line; 200. Expansion joint; 201. Connecting flange; 300, Conductor; 301, First terminal; 302, First conductor; 303, Second conductor; 303, Third conductor; 400, First insulating sleeve; 401, First fixed flange; 402, Second equipotential line; 500, First flexible connection; 501, Second flexible connection; 600, Second terminal; 601, Conductive finger; 700, Second insulating sleeve; 701, Second fixed flange; 702, Third equipotential line; 800, Second sealing ring; 801, First grading ring; 900, Second grading ring; 901, Sealing flange; 1000, First bolt; 1001, Second bolt; 1002, Nut; 1003, Third bolt; 1004, Fourth bolt. Detailed implementation mode

[0021] The technical solution of the novel large-capacity power transmission busbar system of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited do not limit the present invention.

[0022] Embodiment 1 In existing GIL products, there will be a situation where the insulating gas SF6 forms convection in the temperature gradient field under high voltage conditions, resulting in a difference between the surface insulation margin of the insulator and the design, threatening the safe operation of the equipment; at the same time, in extremely low temperature environments, the insulating gas used in GIL will liquefy, resulting in a decrease in insulation strength and posing an electrical hazard; at the same time, to ensure the safety of the line, a gas detection device needs to be specially set up to detect whether gas leakage occurs to prevent explosion, which greatly increases the operating cost.

[0023] To ensure the safe operation of the equipment, the present invention provides a novel large-capacity power transmission busbar system. Please refer to Figures 1-5 , which includes a number of current-carrying conductors, and the current-carrying conductors are insulated and shielded through an insulating component; at least one end of the insulating component is at ground potential; among them, the current-carrying conductors can be composed of a number of conductors 300, and both ends of the conductor 300 are provided with terminals. In this embodiment, three conductors 300 are used for illustration, namely the first conductor 302, the second conductor 303, and the third conductor 304. The material of the conductor 300 is preferably copper or aluminum; and when at least two or more conductors 300 are connected, the connection of the conductors 300 can be made by flexible connection or rigid connection, that is, the conductivity connection of the conductors is completed through flexible or rigid connection methods. Among them, the flexible connection method includes flexible connections composed of braided wires, copper foils or aluminum foils; the rigid connection method includes welding or bolt connection, etc., which are not limited here.

[0024] The insulating assembly includes a plurality of outer insulating shielding cylinders 100 and insulating sleeves. The terminals at both ends of the conductor 300 penetrate through the outer insulating shielding cylinders 100. When one end of the first conductor 302 is close to one end of the second conductor 303 and one end of the second conductor 303 far from the first conductor 302 is close to one end of the third conductor 304, first insulating sleeves 400 are sleeved on both the close end of the first conductor 302 - the second conductor 303 and the close end of the second conductor 303 - the third conductor 304. That is, the connection point of the conductor 300 is arranged in the cavity of the first insulating sleeve 400. The insulating sleeve includes the first insulating sleeve 400. At this time, both ends of the first insulating sleeve 400 are respectively sleeved in the adjacent outer insulating shielding cylinders 100, so as to realize the electric field homogenization and insulating shielding connection through the first insulating sleeve 400 and the outer insulating shielding cylinder 100.

[0025] It should be noted that since the insulating assembly is used for insulating shielding, a solid insulation is formed. The solid insulation of the present application can avoid situations such as a decrease in insulation strength and gas leakage, thereby greatly reducing the operating cost while ensuring the safe operation of the busbar. At the same time, the solid insulation can effectively prevent current from passing through non-conductive paths in a high-voltage environment, reduce power loss, prevent electric leakage or breakdown phenomena, and ensure the safe operation of the busbar in a high-voltage environment, thus effectively avoiding potential safety hazards of equipment caused by GIL gas insulation. At the same time, because at least one end of the outer insulating shielding cylinder is at ground potential with a potential of zero, reliable shielding of high voltage is achieved, reducing the space occupied by the equipment. In addition, there is currently no precedent for the full use of solid insulation in high-voltage and extra-high-voltage transmission lines at home and abroad, and the present application can fill this gap.

[0026] Particularly, at this time, one end of the first conductor 302 far from the second conductor 303 and one end of the third conductor 304 far from the second conductor 303 can both be set as second connection terminals the same as the first connection terminal 301; or they can both be set as finger grooves, and conductive fingers 600 are arranged in the finger grooves. The conductive fingers 600 are preferably beryllium copper plated with silver; it is also possible to have a finger groove and conductive fingers 600 at one end of the first conductor 302 far from the second conductor 303, and a second connection terminal is provided at one end of the third conductor 304 far from the second conductor 303 or vice versa. Among them, the busbar formed by setting both the end of the first conductor 302 far from the second conductor 303 and the end of the third conductor far from the second conductor as second connection terminals the same as the first connection terminal 301 is an open type; the busbar formed by setting both the end of the first conductor 302 far from the second conductor 303 and the end of the third conductor 304 far from the second conductor 303 as conductive fingers 601 is a pluggable type. Among them, the materials of the first connection terminal 301 and the second connection terminal 600 are preferably copper or aluminum.

[0027] Among them, when connecting in the first connection method (i.e., open connection), the first end of the outer insulation shielding cylinder 100 is at a high potential, and the second end of the outer insulation shielding cylinder 100 is at a ground potential; when connecting in the second connection method (i.e., plug-and-play connection), both the first end and the second end of the outer insulation shielding cylinder 100 are at a ground potential. Specifically: The first type is the open type: when the busbar end is connected in an open manner, one end of the outer insulation shielding cylinder 100 is at a high potential and the other end is at a ground potential; The second type is the plug-and-play type: when the busbar end is connected in a plug-and-play manner, both ends of the outer insulation shielding cylinder 100 are at a ground potential.

[0028] In addition, when the busbar end is connected in a plug-and-play manner, at least one end of the outer insulation shielding cylinder 100 is provided with a pot-type insulator for sealing between the conductor 300 and the outer insulation shielding cylinder 100, or an insulating outlet bushing is directly provided on the conductor 300 for plugging and connecting with other electrical equipment; for example, a second insulating bushing 700 is provided at one end of the first conductor away from the second conductor, that is, a part of the end of the conductor 300 is arranged in the cavity of the second insulating bushing 700.

[0029] Particularly, when one end of the outer insulation shielding cylinder 100 is at a high potential and the other end is at a ground potential, it is suitable for open connection with other electrical equipment.

[0030] When both ends of the outer insulation shielding cylinder 100 are at a ground potential, it is suitable for plug-and-play connection with other electrical equipment.

[0031] Among them, when there are at least two outer insulation shielding cylinders 100, an expansion joint 200 can be preferably arranged between adjacent outer insulation shielding cylinders 100.

[0032] To achieve equipotential, the capacitance screen connection points in the outer insulation shielding cylinder 100, the first insulating bushing 400, and the second insulating bushing 700 are respectively connected with a first equipotential line 103, a second equipotential line 402, and a third equipotential line 702, and the first equipotential line 103, the second equipotential line 402, and the third equipotential line 702 are respectively connected with the conductor 300.

[0033] To better achieve the insulation shielding effect, the outer insulation shielding cylinder 100 is provided with a first capacitive insulator, and several capacitance screens are arranged inside the first capacitive insulator. Both the first insulating sleeve 400 and the second insulating sleeve 700 are provided with a second capacitive insulator, and several capacitance screens are arranged inside the second capacitive insulator. When one end of the outer insulation shielding cylinder 100 is at a high potential and the other end is at a ground potential, the lengths of several capacitance screens in the first capacitive insulator at the first end of the outer insulation shielding cylinder 100 are preferably shortened in an arithmetic progression from the inside to the outside along the radial direction, where the radial direction refers to the direction perpendicular to the length direction of the outer insulation shielding cylinder 100; the lengths of several capacitance screens in the first capacitive insulator at the second end of the outer insulation shielding cylinder 100 are preferably lengthened in an arithmetic progression from the inside to the outside along the radial direction, and the outermost lengthened capacitance screen is connected to the end flange 101 at one end, and the end flange 101 is grounded; when both ends of the outer insulation shielding cylinder 100 are at a ground potential, the lengths of several capacitance screens in the first capacitive insulators at the first end and the second end of the outer insulation shielding cylinder 100 are preferably lengthened in an arithmetic progression from the inside to the outside along the radial direction, and the outermost capacitance screens are respectively connected to the end flanges 101 at both ends, and the end flanges 101 are grounded.

[0034] Similarly, the lengths of several capacitance screens in the second capacitive insulators of the first insulating sleeve 400 and the second insulating sleeve 700 are preferably shortened in an arithmetic progression from the inside to the outside along the radial direction, and the outermost capacitance screens are connected to the first fixed flange 401 and the second fixed flange 701 at the same potential, and the first fixed flange 401 and the second fixed flange 701 are then connected to the end flange 101 of the outer insulation shielding cylinder 100 at the same potential.

[0035] An equipotential cylinder or a first equipotential line 103 is arranged inside the outer insulation shielding cylinder 100, and the innermost capacitance screen of the outer insulation shielding cylinder 100 is connected to the equipotential cylinder or the first equipotential line 103 at the same potential; the outer insulation shielding cylinder 100 can be provided with a non-magnetic metal shell outside the outer insulation shielding cylinder 100 as needed.

[0036] An equipotential cylinder or a second equipotential line 402 and a third equipotential line 702 are arranged inside the first insulating sleeve 400 and the second insulating sleeve 700, and the innermost capacitance screens of the first insulating sleeve 400 and the second insulating sleeve 700 are connected to the equipotential cylinder or the second equipotential line 402 and the third equipotential line 702 at the same potential.

[0037] In particular, when the conductor 300, the first terminal 301, the second terminal 600, the first flexible connection 500, and the second flexible connection 501 are in the cavity, the materials of the first flexible connection 500 and the second flexible connection 501 are preferably copper or aluminum. The end flange 101 of the outer insulation shielding cylinder 100 is connected to the first fixed flange 401 of the first insulating sleeve 400 and the second fixed flange 701 of the second insulating sleeve 700 at the same potential.

[0038] Embodiment 2 The difference from Embodiment 1 is that grading balls and a first terminal 301 can be arranged at the end of the conductor 300 according to connection requirements.

[0039] Furthermore, end flanges 101 are respectively fixed at both ends of the outer insulation shielding cylinder 100. A sealing groove is formed on one side of the end flange 101, and a first sealing ring 102 is arranged in the sealing groove. Connection flanges 201 are respectively fixed at both ends of the expansion joint 200. The material of the connection flange 201 is preferably non-magnetic metal. The connection flange 201 and the end flange 101 are connected at the same potential and are connected into one body by a third bolt 1003 and a nut 1002.

[0040] Reliable sealing between adjacent outer insulation shielding cylinders 100 is achieved through the first sealing ring 102 arranged in the sealing groove. Through the arranged connection flange 201, second bolt 1001 and nut 1002, the expansion joint 200 and the outer insulation shielding cylinder 100 are connected into one body.

[0041] As a further solution of the present invention, a sealing flange 901 is arranged at one end of the outer insulation shielding cylinder 100 on the side far from the conductive finger 601. A second grading ring 900 is fixed on one side of the sealing flange 901. The second grading ring 900 and the sealing flange 901 are integrally formed. A first bolt 1000 is connected between the sealing flange 901 and the end flange 101 on this side. The outer side wall of the conductor 300 on this side is fixed to the inner wall of the sealing flange 901. Particularly, in a pluggable busbar, the end flange 101, the connection flange 201 and the sealing flange 901 are all at ground potential.

[0042] Through the arranged sealing flange 901, the conductor 300 on this side can be fixed. Through the arranged first bolt 1000 and, the sealing flange 901 can be connected to the outer insulation shielding cylinder 100 on this side.

[0043] As a further solution of the present invention, a first fixing flange 401 is fixed on the outer side wall of the first insulating sleeve 400. A second bolt 1001 is connected between the first fixing flange 401 and the corresponding end flange 101.

[0044] Through the arranged second bolt 1001, the first insulating sleeve 400 can be connected to the outer insulation shielding cylinder 100 through the first fixing flange 401 and the second bolt 1001, maintaining the stability of the first insulating sleeve 400 in the outer insulation shielding cylinder 100.

[0045] As a further solution of the present invention, a second fixing flange 701 is fixed on the outer side wall of the second insulating sleeve 700. A fourth bolt 1004 is connected between the second fixing flange 701 and the end flange 101 on this side.

[0046] Through the provided second fixed flange 701 and fourth bolt 1004, the second insulating sleeve 700 can be stably connected to the outer insulating shielding cylinder 100.

[0047] Embodiment 3 The difference from Embodiment 2 is that a first grading ring 801 is fixed on the outer surface of the conductor 300 on the side far from the second grading ring 900, a second sealing ring 800 is fixed between the first grading ring 801 and the conductor 300 on the side far from the second uniform ring, and one end of the second insulating sleeve 700 is located within the first grading ring 801.

[0048] Through the provided first grading ring 801 and second sealing ring 800, a stable sealing state can be formed between the second insulating sleeve 700 and the conductor 300 on this side.

[0049] As a further solution of the present invention, a first flexible connection 500 is fixed between two adjacent first connection terminals 301, and a second flexible connection 501 is fixed between the second connection terminal 600 and the first connection terminal 301 opposite thereto.

[0050] Through the provided first flexible connection 500 and second flexible connection 501, connection can be formed between two adjacent conductors 300 while maintaining electrical conductivity.

[0051] Embodiment 4 The present invention also provides a control method for a new large-capacity power transmission bus system, including the following steps: Step S21, obtaining the electrical information of the outer insulating shielding cylinder, where the electrical information includes at least any one of information such as potential value, current value, voltage value, capacitance value, whether it is ground potential or equipotential, etc.; Step S22, constructing an electrical matrix based on the potential information and constructing a historical electrical matrix according to the historical electrical information; Step S23, calculating the correlation coefficient between the electrical matrix and the historical electrical matrix based on the Pearson coefficient, and when the correlation coefficient is within a preset range, it is judged as normal, otherwise it is judged as abnormal; Step S24, in the case of judging that the electrical information is abnormal, feeding back an abnormal alarm to the control system and instructing the control system to perform a power-off process or other abnormal processing on the aforementioned new large-capacity power transmission bus system. At the same time, the control system stores the abnormal potential information for subsequent maintenance or traceability.

[0052] Among them, the acquisition of electrical information can be achieved through sensors or electrical detection devices provided at both ends of the new large-capacity power transmission bus system, and constructing the electrical matrix is convenient for analyzing and judging system abnormalities from multiple dimensions to avoid mistakes in single-dimensional judgment.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel large-capacity power transmission bus system, characterized in that It includes a number of current-carrying conductors, and the current-carrying conductors are insulated and shielded by an insulating assembly; at least one end of the insulating assembly is at ground potential.

2. A novel large-capacity power transmission busbar system according to claim 1, characterized in that: The insulating assembly includes a number of outer insulating shield cylinders (100), and the outer insulating shield cylinders (100) are provided with first capacitive insulators, and a number of capacitance screens are provided in the first capacitive insulators.

3. A novel large-capacity power transmission busbar system according to claim 2, characterized in that: When the first connection method is adopted for connecting the ends of the current-carrying conductors, the first end of the outer insulating shield cylinder (100) is at high potential, and the second end of the outer insulating shield cylinder (100) is at ground potential; When the second connection method is adopted for connecting the ends of the current-carrying conductors, both the first end and the second end of the outer insulating shield cylinder (100) are at ground potential.

4. A novel large-capacity power transmission busbar system according to claim 2, characterized in that: When the first connection method is adopted for connecting the ends of the current-carrying conductors, the lengths of a number of capacitance screens in the first capacitive insulator at the first end of the outer insulating shield cylinder (100) are sequentially shortened from inside to outside in the radial direction, and the lengths of a number of capacitance screens in the first capacitive insulator at the second end of the outer insulating shield cylinder (100) are sequentially increased from inside to outside in the radial direction; When the second connection method is adopted for connecting the ends of the current-carrying conductors, the lengths of a number of capacitance screens in the first capacitive insulators at both the first end and the second end of the outer insulating shield cylinder (100) are sequentially increased from inside to outside in the radial direction.

5. A novel large-capacity power transmission bus system according to claim 2, characterized in that: The insulating assembly further includes an insulating sleeve, the ends of the current-carrying conductors are sleeved inside the insulating sleeve, and the outer insulating shield cylinder (100) is sleeved outside the insulating sleeve.

6. A novel large-capacity power transmission bus system according to claim 5, characterized in that: The insulating sleeve is provided with a second capacitive insulator, a number of capacitance screens are provided in the second capacitive insulator, and the lengths of the number of capacitance screens are sequentially shortened from inside to outside in the radial direction.

7. A novel large-capacity power transmission bus system according to claim 1, characterized in that: The current-carrying conductors include a number of conductors (300), connection terminals are provided at both ends of the conductors (300), and the connection terminals of the conductors (300) with adjacent ends are conductively connected by a flexible or rigid connection method.

8. A novel large-capacity power transmission bus system according to claim 1, characterized in that: The current-carrying conductors include a number of conductors (300), connection terminals are provided at both ends of the conductors (300), the first connection terminals of the conductors (300) with adjacent ends are sleeved inside the insulating sleeve, and the insulating assembly includes the insulating sleeve.

9. A novel large-capacity power transmission busbar system according to claim 1, characterized in that: The current-carrying conductors include a number of conductors (300), connection terminals are provided at both ends of the conductors (300), and the second connection terminals of the conductors (300) close to the ends of the outer insulating shield cylinder (100) protrude out of the outer insulating shield cylinder (100), and the insulating assembly includes the outer insulating shield cylinder (100).

10. A novel large-capacity power transmission bus system according to claim 2, characterized in that: At least two outer insulating shield cylinders (100) are provided.

11. A control method for a new large-capacity electric energy transmission bus system, which is applied to a new large-capacity electric energy transmission bus system according to any one of claims 1-11, characterized in that, Including: Obtaining electrical information of the outer insulating shield cylinder, where the electrical information includes at least any one of a potential value, a current value, a voltage value, a capacitance value, whether it is at ground potential or equipotential; Constructing an electrical matrix based on the electrical information, and constructing a historical electrical matrix according to historical electrical information; Calculate the correlation coefficient between the electrical matrix and the historical electrical matrix based on the Pearson coefficient. When the correlation coefficient is within the preset range, it is judged as normal; otherwise, it is judged as abnormal. In the case of judging that the electrical information is abnormal, feedback an abnormal alarm to the control system and instruct the control system to perform abnormal processing on the new large-capacity power transmission bus system, and the abnormal processing includes power-off processing.

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