Virtual power plant scheduling system and scheduling method

Abstract

The invention discloses a virtual power plant dispatching system and method, and relates to the field of power plant dispatching, the virtual power plant dispatching system comprises a first connecting sleeve and a second connecting sleeve, the first connecting sleeve and the second connecting sleeve are each composed of an annular structure and a conical structure, and the annular structures are integrally fixed to the large ends of the conical structures; the interior of the annular structure on the first connecting sleeve is provided with a threaded groove for the annular structure on the second connecting sleeve to movably stretch out and draw back. The temperature sensor is used for monitoring the working temperature of electrical equipment in a virtual power plant. When the temperature sensor monitors that the working temperature of the electrical equipment in the virtual power plant exceeds a set threshold value, the working temperature is blocked between the first conductive column and the second conductive column through the electric control element, power failure is achieved, and the fireproof cable can be controlled to be separated according to environmental conditions such as fire disasters and too high temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of power plant dispatching, and in particular to a virtual power plant dispatching system and dispatching method. Background Art

[0002] The patent name is: A virtual power plant dispatching system (application number: CN202310608963.9). The invention discloses a technology that can dynamically adjust the charging load in each distribution station area, specifically including a first dispatching platform and multiple first distribution stations; each first distribution station area includes a first transformer, multiple first charging piles and a first data acquisition network; wherein each of the first charging piles is connected to the external distribution network through the first transformer; the first data acquisition network is respectively connected to the first transformer and each of the first charging piles in the current distribution station area; the connection method usually adopts a cross-linked polyethylene insulated copper core unarmored YJV-4*150 cable; however, this type of cable has the risk of fire and leakage, which reduces the safety of use.

[0003] To this end, we provide a virtual power plant scheduling system and scheduling method to solve the above problems. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides a virtual power plant dispatching system and dispatching method. In the present invention, the temperature sensor is used to monitor the operating temperature of electrical equipment in the virtual power plant. When the temperature sensor detects that the operating temperature of the electrical equipment in the virtual power plant exceeds the set threshold, the electric control component is used to block it between the first conductive column and the second conductive column to achieve power outage. The fire-proof cable can be separated according to environmental conditions, such as when a fire occurs or the temperature is too high.

[0005] In order to achieve the above-mentioned purpose, a virtual power plant dispatching system adopted by the present invention includes a first dispatching platform and multiple first distribution stations, each of which includes a first transformer, multiple first charging piles and a first data acquisition network; each of the first charging piles is connected to the external distribution network through the first transformer; the first data acquisition network is respectively connected to the first transformer and each of the first charging piles in the current distribution station; the first dispatching platform is connected to the external power grid demand side management platform, and is also respectively connected to the first charging piles in each of the first distribution stations, and is also respectively connected to the first data acquisition network in each of the first distribution stations, characterized in that the first dispatching platform and the first transformers, multiple first charging piles and first data acquisition networks in the multiple first distribution stations are connected by fireproof cables, and the fireproof cables include: A first connecting sleeve and a second connecting sleeve, wherein the first connecting sleeve and the second connecting sleeve are both composed of an annular structure and a conical structure, the annular structure is integrally fixed to the large end of the conical structure, a threaded groove is provided inside the annular structure on the first connecting sleeve for the annular structure on the second connecting sleeve to be movable and retractable, a stainless steel groove is provided at the end of the annular structure on the second connecting sleeve, a magnetic column is connected to the stainless steel groove via a first spring, a connecting ring is fixedly provided at the end of the magnetic column, and the connecting ring is connected to the threaded groove via threaded fitting; A third connecting sleeve, wherein two third connecting sleeves are provided, and the two third connecting sleeves are respectively fixedly connected to the small end of the conical structure on the first connecting sleeve and the second connecting sleeve, and the third connecting sleeve is connected to the wires on the electrical equipment in the virtual power plant; Among them, a conductive disk is fixedly arranged inside the third connecting sleeve, and a conductive connection groove is arranged at one end of the conductive disk close to the wire. The cable sheath is removed from the end of the wire close to the conductive disk, and the cable core inside the wire is inserted into the conductive connection groove by clamping, and the wire is fixed in the third connecting sleeve. The first connecting sleeve and the second connecting sleeve are respectively provided with a first conductive column and a second conductive column inside, and the first conductive column and the second conductive column are movably fitted with each other, and the ends of the first conductive column and the second conductive column that are far away from each other are respectively fixedly connected to the corresponding conductive disk. When the first conductive column and the second conductive column are separated, the wires fixed on the two third connecting sleeves are disconnected, and when the first conductive column and the second conductive column are fitted with each other, the wires on the two third connecting sleeves remain electrically connected; A control member, wherein the control member is blocked between the first conductive column and the second conductive column by electric control; A temperature sensor is used to monitor the operating temperature of the electrical equipment in the virtual power plant. When the temperature sensor detects that the operating temperature of the electrical equipment in the virtual power plant exceeds a set threshold, the temperature sensor is blocked between the first conductive column and the second conductive column through an electric control component to cut off power.

[0006] As a further optimization of the above scheme, the control component includes a telescopic cylinder, a telescopic rod, an electromagnet and a magnetic sheet. The telescopic cylinder is fixedly connected to the inner wall of the first connecting sleeve, the telescopic rod is telescopically arranged in the telescopic cylinder, and one end of the telescopic rod located in the telescopic cylinder is fixedly connected to the inner wall of the telescopic cylinder through a second spring. The electromagnet and the magnetic sheet are respectively fixed to the inner wall of the telescopic cylinder away from the telescopic rod and the end of the telescopic rod extending into the telescopic cylinder, and the electromagnet and the magnetic sheet correspond to each other.

[0007] As a further optimization of the above solution, a thermosensitive metal sheet is further provided in the telescopic tube, one end of which is fixed to the inner wall of the end of the telescopic tube away from the telescopic rod, and the other end of the thermosensitive metal sheet is movably fitted to the end of the telescopic rod extending into the telescopic tube; When the working temperature of the fireproof cable exceeds a set threshold, the temperature is transmitted to the thermosensitive metal sheet, causing the thermosensitive metal sheet to elastically deform and contact the telescopic rod to block between the first conductive column and the second conductive column, thereby disconnecting the power.

[0008] As a further optimization of the above scheme, a slide groove is provided in the conductive connection groove, and there are several slide grooves. A third spring is fixedly provided at the bottom of the slide groove, and a needle column is telescopically provided in the slide groove. The end of the third spring is fixedly connected to one end of the needle column extending into the slide groove, and one end of the needle column movably extends out of the slide groove and movably fits with the surface of the cable core.

[0009] As a further optimization of the above solution, the wire is fixed to the third connecting sleeve by a compression screw; The clamping screw is connected to the third connecting sleeve by threaded fitting, the nut end of the clamping screw extends to the outside of the third connecting sleeve, and the screw end of the clamping screw is located inside the third connecting sleeve; Two elastic rubber sealing airbags are fixedly arranged on the inner wall of the third connecting sleeve, and the two elastic rubber sealing airbags are movably fitted on the outer ring of the wire; The screw end of the compression screw is located between two elastic rubber sealing airbags; A fixed sealing ring is fixedly arranged between the two elastic rubber sealing airbags, the fixed sealing ring is movably fitted at the outer ring of the wire, and the fixed sealing ring is elastic. A movable sealing ring is also arranged between the two elastic rubber sealing airbags, and sealing rings are fixedly arranged at both ends of the movable sealing ring. The two sealing rings are respectively movably fitted on the sides of the two elastic rubber sealing airbags that are close to each other. The movable sealing ring is annular and elastic, and the sealing ring seals the movable sealing ring and the elastic rubber sealing airbag; A connecting rod is fixedly connected between the movable sealing ring and the fixed sealing ring; When the clamping screw is rotated and the screw end of the clamping screw is pressed against the movable sealing ring, the movable sealing ring is elastically deformed and pressed against the fixed sealing ring through the connecting rod. The inner diameter of the fixed sealing ring is reduced and pressed against the outer ring of the wire to form a recessed area.

[0010] As a further optimization of the above solution, an air hole is provided on the elastic rubber sealing airbag, one end of the air hole is connected to the interior of the elastic rubber sealing airbag, and the other end of the air hole is connected to the air cavity formed between the movable sealing ring and the fixed sealing ring.

[0011] As a further optimization of the above solution, four clamping screws are provided, and the four clamping screws are distributed in a circular array along the axis of the third connecting sleeve; There are four connecting rods, and the four connecting rods correspond to the four clamping screws one by one.

[0012] As a further optimization of the above solution, one end of the telescopic rod away from the telescopic cylinder is a conical end, and the conical end corresponds to the fitting position between the first conductive column and the second conductive column.

[0013] As a further optimization of the above solution, the first conductive column, the second conductive column, the conductive disk, the cable core and the needle column are all made of metal conductive materials.

[0014] As a further optimization of the above solution, the telescopic rod is made of insulating material.

[0015] The present invention also discloses a virtual power plant scheduling method, comprising: The first dispatching platform is used to receive the current period power load threshold information sent by the power grid demand side management platform, and update the locally stored system charging load threshold according to the current period power load threshold information; The first dispatching platform is also used to receive the first area data records sent by each first data acquisition network and store them in a preset area database; The substation database includes multiple first substation data records; the first substation data record includes the first substation identification, the first statistical time, the first substation real-time load and multiple first charging pile records; the first charging pile record includes the first charging pile identification and the first charging pile real-time load.

[0016] A virtual power plant dispatching system and dispatching method of the present invention have the following beneficial effects: A virtual power plant dispatching system of the present invention, wherein the temperature sensor is used to monitor the operating temperature of electrical equipment in the virtual power plant. When the temperature sensor detects that the operating temperature of the electrical equipment in the virtual power plant exceeds a set threshold, the temperature sensor blocks the first conductive column and the second conductive column through an electric control component to achieve power outage. The fireproof cable can be separated according to environmental conditions, such as when a fire occurs or the temperature is too high. When the wire is pulled by an external force, the first conductive post and the second conductive post are separated to achieve power failure, and the control element can also be blocked between the first conductive post and the second conductive post to achieve the purpose of continuous power failure, and the first conductive post and the second conductive post will not be automatically reset; when it can work normally, the control element is controlled to reset in an electric way, so that the first conductive post and the second conductive post are reset and electrically connected, without manual control; The present invention also provides a heat-sensitive metal sheet inside the telescopic cylinder, and the function of the heat-sensitive metal sheet is to disconnect the fireproof cable autonomously to cut off the power supply; The present invention is provided with a plurality of retractable needle posts. When the wire is fixed in the third connecting sleeve, the needle posts use the elastic force of the third spring to fit the end face of the cable core in real time, adapting to the shape of the end face of the cable core, achieving the purpose of multi-contact contact, reducing resistance, and improving conductive performance. In addition, based on the real-time elastic resistance of the third spring, the needle posts fit the end face of the cable core, which also solves the problem of easy looseness and poor contact at the connection. When the compression screw compresses the wire, the movable sealing ring descends, and the gas in the air cavity can be pressed into the elastic rubber sealing airbag through the air hole, so that the elastic rubber sealing airbag expands, and at the same time, the sealing of the connection between the wire and the third connecting sleeve is increased, which is more practical; When the wire is subjected to tension and the first conductive column is separated from the second conductive column, the second spring can resist the telescopic rod and automatically engage between the first conductive column and the second conductive column, so that the fire-proof cable is directly powered off. The control component is controlled to restore power supply only when the wire is not subjected to tension, thereby avoiding frequent power outages and conduction when the wire is subjected to tension, and reducing the loss of components in the fire-proof cable and electrical equipment in the virtual power plant.

[0017] With reference to the following description and drawings, a specific embodiment of the present invention is disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby, and within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A diagram of a virtual power plant dispatching system of the present invention; Figure 2 It is a schematic diagram of the structure of the fireproof cable of the present invention; Figure 3 It is a cross-sectional view of the three-dimensional structure of the fireproof cable of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle; Figure 6 It is a schematic diagram of the structure of the conductive disk of the present invention; Figure 7 It is a schematic diagram of the needle column structure of the present invention; Figure 8 It is an axial cross-sectional view of the fireproof cable of the present invention; Fig. 9 It is a schematic structural diagram of the first conductive column and the second conductive column when they are separated from each other in the present invention; Fig.10 It is a schematic diagram of the structure of the wire of the present invention when it is compressed and fixed; Fig.11 It is a schematic diagram of the structure of the connection between the first conductive column and the second conductive column of the present invention.

[0019] In the figure: 1. first connecting sleeve; 2. second connecting sleeve; 3. third connecting sleeve; 4. clamping screw; 5. wire; 6. first conductive column; 7. second conductive column; 8. conductive disk; 9. cable core; 10. control part; 11. elastic rubber sealing airbag; 12. air hole; 13. connecting rod; 14. sealing ring; 15. movable sealing ring; 16. fixed sealing ring; 17. connecting ring; 18. magnetic column; 19. threaded groove; 20. first spring; 21. stainless steel groove; 22. heat-sensitive metal sheet; 23. electromagnet; 24. second spring; 25. magnetic sheet; 26. telescopic cylinder; 27. telescopic rod; 28. conductive connecting groove; 29. ​​needle column; 30. slide groove; 31. third spring; 32. recessed area. DETAILED DESCRIPTION

[0020] Please refer to the instruction manual Figures 1 to 11 The present invention provides a technical solution: a virtual power plant dispatching system and dispatching method, comprising a first dispatching platform and a plurality of first distribution stations, each of which comprises a first transformer, a plurality of first charging piles and a first data acquisition network; each of the first charging piles is connected to an external distribution network through the first transformer; the first data acquisition network is respectively connected to the first transformer and each of the first charging piles in the current distribution station; the first dispatching platform is connected to an external power grid demand side management platform, and is also respectively connected to the first charging piles in each of the first distribution stations, and is also respectively connected to the first data acquisition network in each of the first distribution stations, the first dispatching platform is used to receive the current time period power load threshold information sent by the power grid demand side management platform, and update the locally stored system charging load threshold according to the current time period power load threshold information; The first dispatching platform is also used to receive the first area data records sent by each first data acquisition network and store them in a preset area database; The substation database includes multiple first substation data records; the first substation data record includes the first substation identification, the first statistical time, the first substation real-time load and multiple first charging pile records; the first charging pile record includes the first charging pile identification and the first charging pile real-time load.

[0021] The first dispatching platform and the first transformers, the first charging piles and the first data acquisition network in the first distribution station areas are connected by a fireproof cable. The fireproof cable includes: a first connecting sleeve 1, a second connecting sleeve 2, a third connecting sleeve 3, a control part 10 and a temperature sensor.

[0022] Among them, the first connecting sleeve 1, the second connecting sleeve 2 and the third connecting sleeve 3 are used as the shell of the connector, which is used to connect between two wires 5. The first connecting sleeve 1 and the second connecting sleeve 2 are composed of an annular structure and a conical structure. The annular structure is integrally fixed to the large end of the conical structure. The annular structure on the first connecting sleeve 1 is provided with a threaded groove 19 for the annular structure on the second connecting sleeve 2 to be movable and retractable. The end of the annular structure on the second connecting sleeve 2 is provided with a stainless steel groove 21. The stainless steel groove 21 is connected with a magnetic column 18 through a first spring 20. The end of the magnetic column 18 is fixedly provided with a threaded groove 19. A connecting ring 17 is provided, and the connecting ring 17 is connected to the thread groove 19 by threaded cooperation. When assembled between the first connecting sleeve 1 and the second connecting sleeve 2, since the magnetic column 18 is adsorbed and fixed in the stainless steel groove 21 for limiting, when the second connecting sleeve 2 is rotated, the connecting ring 17 also rotates, and the connecting ring 17 can be smoothly threadedly connected with the thread groove 19. When the wire 5 is subjected to a certain degree of tension, the magnetic column 18 will move out of the stainless steel groove 21. At this time, the second connecting sleeve 2 is separated from the connecting ring 17, and the second connecting sleeve 2 is retracted in the thread groove 19 to achieve the separation purpose.

[0023] There are two third connecting sleeves 3, which are fixedly connected to the small ends of the conical structures on the first connecting sleeve 1 and the second connecting sleeve 2, respectively, and the third connecting sleeves 3 are connected to the wires 5 on the electrical equipment in the virtual power plant; Among them, a conductive disk 8 is fixedly arranged inside the third connecting sleeve 3, and a conductive connecting groove 28 is arranged at one end of the conductive disk 8 close to the wire 5. The cable sheath is removed at one end of the wire 5 close to the conductive disk 8 and the cable core 9 inside the wire 5 is inserted into the conductive connecting groove 28. The wire 5 is fixed in the third connecting sleeve 3. The first connecting sleeve 1 and the second connecting sleeve 2 are respectively provided with a first conductive column 6 and a second conductive column 7. The first conductive column 6 and the second conductive column 7 are movably fitted with each other, and the ends of the first conductive column 6 and the second conductive column 7 away from each other are respectively fixedly connected to the corresponding conductive disk 8. When the first conductive column 6 and the second conductive column 7 are separated, the wires 5 fixed on the two third connecting sleeves 3 are disconnected. When the first conductive column 6 and the second conductive column 7 are fitted with each other, the wires 5 on the two third connecting sleeves 3 remain electrically connected. The first conductive column 6, the second conductive column 7, the conductive disk 8, and the cable core 9 are all made of metal conductive materials, such as copper.

[0024] It should be noted that, when the first conductive pillar 6 and the second conductive pillar 7 are attached to each other, a stable connection and a sufficient contact area can be ensured. Alternatively, a protrusion or a groove can be provided on the side of the first conductive pillar 6 and the second conductive pillar 7 close to each other for stable connection. Fig.11 As shown in , no further details are given here; however, it should be noted that the protrusion can be conical or hemispherical, etc., which does not affect the use of the control member 10.

[0025] The control member 10 is blocked between the first conductive column 6 and the second conductive column 7 by electric control. When the wire 5 is pulled by external force, the first conductive column 6 and the second conductive column 7 are separated to achieve power failure. The control member 10 can also be blocked between the first conductive column 6 and the second conductive column 7 to achieve the purpose of continuous power failure, and the first conductive column 6 and the second conductive column 7 will not be automatically reset. When it can work normally, the control member 10 is controlled to reset by electric means, so that the first conductive column 6 and the second conductive column 7 are reset and electrically connected without manual control.

[0026] The temperature sensor in the present invention is used to monitor the operating temperature of electrical equipment in the virtual power plant. When the temperature sensor detects that the operating temperature of the electrical equipment in the virtual power plant exceeds the set threshold, the electric control component 10 is blocked between the first conductive column 6 and the second conductive column 7 to achieve power off. The fireproof cable can be separated according to environmental conditions, such as fire or excessive temperature. A leakage sensor can also be provided according to actual needs. The control component 10 is blocked between the first conductive column 6 and the second conductive column 7 to complete the fireproof cable separation when leakage occurs, so that the fireproof cable separation has a wide range of applications.

[0027] The control member 10 includes a telescopic cylinder 26, a telescopic rod 27, an electromagnet 23 and a magnetic sheet 25. The telescopic cylinder 26 is fixedly connected to the inner wall of the first connecting sleeve 1. The telescopic rod 27 is telescopically arranged in the telescopic cylinder 26. One end of the telescopic rod 27 is located in the telescopic cylinder 26 and is fixedly connected to the inner wall of the telescopic cylinder 26 through a second spring 24. The electromagnet 23 and the magnetic sheet 25 are respectively fixed to the inner wall of the end of the telescopic cylinder 26 away from the telescopic rod 27 and the end of the telescopic rod 27 extending into the telescopic cylinder 26, and the electromagnet 23 and the magnetic sheet 25 correspond to each other. When a thermosensitive metal sheet 22 is also provided in the telescopic cylinder 26, one end of the thermosensitive metal sheet 22 is fixed to the inner wall of the end of the telescopic cylinder 26 away from the telescopic rod 27, and the thermosensitive metal sheet 25 is fixed to the inner wall of the end of the telescopic cylinder 26 away from the telescopic rod 27. The other end of 22 is movably fitted to the end of the telescopic rod 27 extending into the telescopic tube 26; when the temperature sensor detects that the operating temperature of the electrical equipment in the virtual power plant exceeds the set threshold, the electromagnet 23 can be turned on. At this time, the electromagnet 23 generates magnetism, and the electromagnet 23 and the magnetic sheet 25 repel each other, so that the magnetic sheet 25 is pushed to move in the direction away from the electromagnet 23, which makes the telescopic rod 27 move between the first conductive column 6 and the second conductive column 7, completing the separation between the first conductive column 6 and the second conductive column 7, and realizing power off, and the telescopic rod 27 is blocked between the first conductive column 6 and the second conductive column 7 in real time, avoiding the problem of power off caused by automatic resetting of the first conductive column 6 and the second conductive column 7.

[0028] Furthermore, the present invention also provides a thermosensitive metal sheet 22 inside the telescopic tube 26. The function of the thermosensitive metal sheet 22 is to enable the fireproof cable to disconnect autonomously to achieve power off. Specifically, when the working temperature of the fireproof cable exceeds the set threshold, the temperature is transmitted to the thermosensitive metal sheet 22, causing the thermosensitive metal sheet 22 to elastically deform and contact the telescopic rod 27 to block between the first conductive column 6 and the second conductive column 7, thereby achieving power off.

[0029] It should be noted that the thermosensitive metal sheet 22 is a prior art, usually a low melting point alloy, a tin-bismuth alloy, a fusible alloy, a shape memory alloy, etc. Depending on the material used, it can change its shape at a specific temperature, thereby achieving autonomous power-off of the fire-proof cable.

[0030] In order to increase the reliability of the connection between the conductor 5 and the fireproof cable, a slide groove 30 is provided in the conductive connection groove 28. The slide groove 30 is provided with a plurality of slide grooves. A third spring 31 is fixedly provided at the bottom of the slide groove 30. A needle column 29 is telescopically provided in the slide groove 30. The end of the third spring 31 is fixedly connected to the end of the needle column 29 extending into the slide groove 30. The end of the needle column 29 movably extends out of the slide groove 30 and movably fits with the surface of the cable core 9. The needle column 29 is made of a metal conductive material, such as copper. Because after the insulation skin of the end of the conductor 5 is removed, the end face of the cable core 9 exposed is usually not completely flat. Therefore, when the wire 5 is connected to the conductive structure inside the fire-proof cable, the contact area at the contact point may be small. Therefore, a plurality of retractable needle columns 29 are provided in the present invention. When the wire 5 is fixed in the third connecting sleeve 3, the needle column 29 utilizes the elastic force of the third spring 31 to fit in real time on the end face of the cable core 9, adapting to the shape of the end face of the cable core 9, achieving the purpose of multi-contact contact, reducing resistance, and improving conductivity. In addition, based on the real-time elastic resistance of the third spring 31, the needle column 29 fits in the end face of the cable core 9, which also solves the problem of easy looseness and poor contact at the connection.

[0031] The conductor 5 is fixed to the third connecting sleeve 3 by means of a clamping screw 4; wherein the clamping screw 4 is connected to the third connecting sleeve 3 by means of threaded fit, the nut end of the clamping screw 4 extends to the outside of the third connecting sleeve 3, and the screw end of the clamping screw 4 is located inside the third connecting sleeve 3; two elastic rubber sealing airbags 11 are fixedly provided on the inner wall of the third connecting sleeve 3, and the two elastic rubber sealing airbags 11 are movably fitted to the outer ring of the conductor 5; the screw end of the clamping screw 4 is located between the two elastic rubber sealing airbags 11; a fixed sealing is fixedly provided between the two elastic rubber sealing airbags 11 Ring 16, the fixed sealing ring 16 is movably fitted on the outer ring of the wire 5, and the fixed sealing ring 16 is elastic. A movable sealing ring 15 is also arranged between the two elastic rubber sealing airbags 11, and sealing rings 14 are fixedly arranged at both ends of the movable sealing ring 15. The two sealing rings 14 are movably fitted on the sides of the two elastic rubber sealing airbags 11 that are close to each other. The movable sealing ring 15 is annular and elastic. The sealing ring 14 seals the movable sealing ring 15 and the elastic rubber sealing airbag 11; a connecting rod 13 is fixedly connected between the movable sealing ring 15 and the fixed sealing ring 16.

[0032] When the clamping screw 4 is rotated and the screw end of the clamping screw 4 is pressed against the movable sealing ring 15, the movable sealing ring 15 is elastically deformed and pressed against the fixed sealing ring 16 through the connecting rod 13. The inner diameter of the fixed sealing ring 16 is reduced and pressed against the outer ring of the wire 5 to form a recessed area 32, thereby completing the pressing and fixing of the wire 5. The connection is stable, and an air hole 12 is provided on the elastic rubber sealing airbag 11. One end of the air hole 12 is connected to the interior of the elastic rubber sealing airbag 11, and one end of the air hole 12 is connected to the air cavity formed between the movable sealing ring 15 and the fixed sealing ring 16. When the movable sealing ring 15 descends, the gas in the air cavity can be pressed into the elastic rubber sealing airbag 11 through the air hole 12, so that the elastic rubber sealing airbag 11 expands, and at the same time, the sealing of the connection between the wire 5 and the third connecting sleeve 3 is increased, which is more practical.

[0033] In actual use, four clamping screws 4 are provided, and the four clamping screws 4 are distributed in a circular array along the axis of the third connecting sleeve 3; wherein, four connecting rods 13 are provided, and the four connecting rods 13 correspond to the four clamping screws 4 one by one.

[0034] The end of the telescopic rod 27 away from the telescopic tube 26 is a conical end, and the conical end corresponds to the fitting position between the first conductive column 6 and the second conductive column 7. The telescopic rod 27 is made of insulating material. When the wire 5 is subjected to tension and the first conductive column 6 and the second conductive column 7 are separated, the second spring 24 can resist the telescopic rod 27 and automatically engage between the first conductive column 6 and the second conductive column 7, so that the fireproof cable is directly powered off. When the wire 5 is not subjected to tension, the control component 10 is controlled to restore power supply, thereby avoiding frequent power off and conduction when the wire 5 is subjected to tension, and reducing the loss of components in the fireproof cable and electrical equipment in the virtual power plant.

[0035] It should also be noted that the thermosensitive metal sheet 22 is movably fitted with the telescopic rod 27. When the thermosensitive metal sheet 22 is heated, it will resist the telescopic rod 27 to extend. When the heat drops, the electromagnet 23 can be turned on, so that the current flowing into the electromagnet 23 is opposite, thereby causing the electromagnet 23 to attract the magnetic sheet 25, completing the resetting effect of the telescopic rod 27.

[0036] It is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A virtual power plant dispatching system, comprising a first dispatching platform and a plurality of first distribution stations, each of which comprises a first transformer, a plurality of first charging piles and a first data acquisition network; each of which is connected to an external distribution network via the first transformer; the first data acquisition network is respectively connected to the first transformer and each of which is connected to the first charging pile in the current distribution station; the first dispatching platform is connected to an external power grid demand side management platform, and is also respectively connected to the first charging pile in each of which is connected to the first distribution station, and is also respectively connected to the first data acquisition network in each of which is connected to the first distribution station, characterized in that: The first dispatching platform and the first transformers, the first charging piles, and the first data acquisition network in the first distribution station areas are connected by fireproof cables, and the fireproof cables include: A first connecting sleeve (1) and a second connecting sleeve (2), wherein the first connecting sleeve (1) and the second connecting sleeve (2) are both composed of an annular structure and a conical structure, the annular structure being integrally fixed to the large end of the conical structure, a thread groove (19) being provided inside the annular structure on the first connecting sleeve (1) for the annular structure on the second connecting sleeve (2) to be movable and retractable, a stainless steel groove (21) being provided at the end of the annular structure on the second connecting sleeve (2), a magnetic column (18) being connected to the stainless steel groove (21) via a first spring (20), a connecting ring (17) being fixedly provided at the end of the magnetic column (18), and the connecting ring (17) being connected to the thread groove (19) via threaded engagement; A third connecting sleeve (3), wherein two third connecting sleeves (3) are provided, and the two third connecting sleeves (3) are respectively fixedly connected to the small end of the conical structure on the first connecting sleeve (1) and the second connecting sleeve (2), and the third connecting sleeve (3) is connected to the wire (5) on the electrical equipment in the virtual power plant; The third connection sleeve (3) is fixedly provided with a conductive disk (8) inside, and a conductive connection groove (28) is provided at one end of the conductive disk (8) close to the wire (5). The cable sheath is removed from the end of the wire (5) close to the conductive disk (8), and the cable core (9) inside the wire (5) is inserted into the conductive connection groove (28) by clamping, and the wire (5) is fixed in the third connection sleeve (3). The first connection sleeve (1) and the second connection sleeve (2) are respectively provided with a first conductive column (6) and a second conductive column (7). The first conductive column (6) and the second conductive column (7) are movably fitted with each other, and the ends of the first conductive column (6) and the second conductive column (7) that are away from each other are respectively fixedly connected to the corresponding conductive disk (8). When the first conductive column (6) and the second conductive column (7) are separated, the wires (5) fixed on the two third connection sleeves (3) are disconnected. When the first conductive column (6) and the second conductive column (7) are fitted with each other, the wires (5) on the two third connection sleeves (3) are electrically connected. A control member (10), wherein the control member (10) is blocked between the first conductive column (6) and the second conductive column (7) by electric control; A temperature sensor, the temperature sensor is used to monitor the operating temperature of the electrical equipment in the virtual power plant. When the temperature sensor detects that the operating temperature of the electrical equipment in the virtual power plant exceeds a set threshold, the temperature sensor is blocked between the first conductive column (6) and the second conductive column (7) through an electric control component (10) to achieve power off.

2. A virtual power plant dispatching system according to claim 1, characterized in that: The control member (10) comprises a telescopic cylinder (26), a telescopic rod (27), an electromagnet (23) and a magnetic sheet (25); the telescopic cylinder (26) is fixedly connected to the inner wall of the first connecting sleeve (1); the telescopic rod (27) is telescopically arranged in the telescopic cylinder (26); one end of the telescopic rod (27) located in the telescopic cylinder (26) is fixedly connected to the inner wall of the telescopic cylinder (26) via a second spring (24); the electromagnet (23) and the magnetic sheet (25) are respectively fixed to the inner wall of the telescopic cylinder (26) at one end away from the telescopic rod (27) and at one end of the telescopic rod (27) extending into the telescopic cylinder (26); the electromagnet (23) and the magnetic sheet (25) correspond to each other.

3. A virtual power plant dispatching system according to claim 2, characterized in that: A thermosensitive metal sheet (22) is also provided in the telescopic cylinder (26), one end of the thermosensitive metal sheet (22) being fixed to the inner wall of the telescopic cylinder (26) at one end away from the telescopic rod (27), and the other end of the thermosensitive metal sheet (22) being movably fitted to the end of the telescopic rod (27) extending into the interior of the telescopic cylinder (26); When the operating temperature of the fireproof cable exceeds a set threshold, the temperature is transmitted to the thermosensitive metal sheet (22), causing the thermosensitive metal sheet (22) to elastically deform and abut against the telescopic rod (27) to block between the first conductive column (6) and the second conductive column (7), thereby disconnecting the power supply.

4. A virtual power plant dispatching system according to claim 1, characterized in that: The conductive connection groove (28) is provided with a slide groove (30), and a plurality of slide grooves (30) are provided. A third spring (31) is fixedly provided at the bottom of the slide groove (30), and a needle column (29) is telescopically provided in the slide groove (30). An end of the third spring (31) is fixedly connected to an end of the needle column (29) extending into the slide groove (30), and an end of the needle column (29) movably extending out of the slide groove (30) is movably fitted with a surface of the cable core (9).

5. A virtual power plant dispatching system according to claim 1, characterized in that: The wire (5) is fixed to the third connecting sleeve (3) via a clamping screw (4); The clamping screw (4) is connected to the third connecting sleeve (3) by threaded engagement, the nut end of the clamping screw (4) extends to the outside of the third connecting sleeve (3), and the screw end of the clamping screw (4) is located inside the third connecting sleeve (3); Two elastic rubber sealing airbags (11) are fixedly arranged on the inner wall of the third connecting sleeve (3), and the two elastic rubber sealing airbags (11) are movably fitted on the outer ring of the wire (5); The screw end of the compression screw (4) is located between two elastic rubber sealing airbags (11); A fixed sealing ring (16) is fixedly arranged between the two elastic rubber sealing airbags (11), the fixed sealing ring (16) is movably fitted on the outer ring of the wire (5), and the fixed sealing ring (16) is elastic. A movable sealing ring (15) is also arranged between the two elastic rubber sealing airbags (11), and sealing rings (14) are fixedly arranged at both ends of the movable sealing ring (15). The two sealing rings (14) are movably fitted on the sides of the two elastic rubber sealing airbags (11) that are close to each other. The movable sealing ring (15) is annular and elastic, and the sealing ring (14) seals the movable sealing ring (15) and the elastic rubber sealing airbag (11); A connecting rod (13) is fixedly connected between the movable sealing ring (15) and the fixed sealing ring (16); When the clamping screw (4) is rotated and the screw end of the clamping screw (4) is pressed against the movable sealing ring (15), the movable sealing ring (15) is elastically deformed and pressed against the fixed sealing ring (16) through the connecting rod (13), and the inner diameter of the fixed sealing ring (16) is reduced and pressed against the outer ring of the wire (5) to form a recessed area (32).

6. A virtual power plant dispatching system according to claim 5, characterized in that: The elastic rubber sealing airbag (11) is provided with an air hole (12), one end of the air hole (12) is connected to the interior of the elastic rubber sealing airbag (11), and one end of the air hole (12) is connected to the air cavity formed between the movable sealing ring (15) and the fixed sealing ring (16).

7. A virtual power plant dispatching system according to claim 5, characterized in that: Four clamping screws (4) are provided, and the four clamping screws (4) are distributed in a circular array along the axis of the third connecting sleeve (3); There are four connecting rods (13), and the four connecting rods (13) correspond to the four clamping screws (4) respectively.

8. A virtual power plant dispatching system according to claim 2, characterized in that: The end of the telescopic rod (27) away from the telescopic cylinder (26) is a conical end, and the conical end corresponds to the fitting position between the first conductive column (6) and the second conductive column (7).

9. A virtual power plant dispatching system according to claim 4, characterized in that: The first conductive column (6), the second conductive column (7), the conductive disk (8), the cable core (9) and the needle column (29) are all made of metallic conductive material; The telescopic rod (27) is made of insulating material.

10. A virtual power plant scheduling method, characterized in that: The virtual power plant dispatching system according to any one of claims 1 to 9 above further comprises: The first dispatching platform is used to receive the current period power load threshold information sent by the power grid demand side management platform, and update the locally stored system charging load threshold according to the current period power load threshold information; The first dispatching platform is also used to receive the first area data records sent by each first data acquisition network and store them in a preset area database; The substation database includes multiple first substation data records; the first substation data record includes the first substation identification, the first statistical time, the first substation real-time load and multiple first charging pile records; the first charging pile record includes the first charging pile identification and the first charging pile real-time load.

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