A short-term load forecasting data acquisition system for power distribution networks

Abstract

This invention discloses a short-term load forecasting data acquisition system for power distribution networks, relating to the field of power load data acquisition and measurement technology. It includes a base and a support frame. Two support plates are fixedly connected to both sides of the support frame, and the lower surfaces of the four support plates are fixedly connected to the upper surface of the base. A conductor ring closing mechanism is mounted on the support frame. A compact closing mechanism is mounted on the conductor ring closing mechanism. An inductor detection mechanism is mounted on the base and used to measure the current generated by electromagnetic induction. It also includes a connecting compact mechanism mounted on the inductor conductors to make the connection between the two inductor conductors more compact. This solves the problem that existing inductors cause inaccurate data interception times during short-term measurements, increasing the difficulty of data processing for operators.

Description

Technical Field

[0001] This invention relates to the field of power load data acquisition and measurement technology, specifically to a short-term load forecasting data acquisition system for distribution networks. Background Technology

[0002] With the large-scale integration of distributed generation, the traditional operation mode of distribution networks has changed, which may lead to situations such as power flow reversal, voltage overruns, and relay protection malfunctions. Currently, there is a lack of effective evaluation methods and operational optimization support for the operation of distributed generation. The distribution network's sensing and control capabilities are insufficient, the coverage rate of distribution terminals is low, the grid information collection capabilities are inadequate, and the level of data access, governance, analysis, and application still needs to be improved. Moreover, the integration of a large number of distributed generation sources has changed the shape and characteristics of load curves, further reducing the universality of load models and making them unable to adapt to future grid development.

[0003] As disclosed in Chinese Patent CN202111343878.1, the transmission line load monitoring device includes a CPU, an analog-to-digital converter module, multiple current transformers, a communication module, and a power supply module. The signal output terminals of the current transformers are connected to the signal input terminals of the analog-to-digital converter module, the signal output terminals of the analog-to-digital converter module are connected to the signal input terminals of the CPU, and the signal output terminals of the CPU are connected to the signal input terminals of the communication module. The power supply is electrically connected to the CPU and the communication module. It can monitor the load of each subscriber line, accurately detect subscriber lines where electricity theft is occurring, and transmit the load signal of each subscriber line to the back-end terminal server in real time, enabling timely detection of electricity theft and significantly shortening investigation time.

[0004] Based on existing technology research, it is known that the measuring device is usually fixed on the surface of the wire, and the magnetic field generated by the flow of current causes the inductor to generate a value, which can then be used to predict the power grid load. However, the existing inductor coils are basically closed for a long time, which makes the data interception time in short-term measurements inaccurate and increases the amount of measurement data, increasing the difficulty of data processing for staff. Therefore, there is a need for a data acquisition device that can control the opening and closing of the inductor coil. Summary of the Invention

[0005] The purpose of this invention is to provide a short-term load forecasting data acquisition system for power distribution networks, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a short-term load forecasting data acquisition system for a distribution network, comprising a base and a support, wherein two support plates are fixedly connected to both sides of the support, the lower surfaces of the four support plates are fixedly connected to the upper surface of the base, a signal transceiver and control component is fixedly connected to the upper surface of the base, and an inductor signal processing component is also fixedly connected to the upper surface of the base.

[0007] A conductor ring closing mechanism is mounted on the bracket.

[0008] A closing compact mechanism is provided on the conductor ring closing mechanism;

[0009] An inductor detection mechanism is mounted on the base and is used to measure the current generated by electromagnetic induction.

[0010] Optionally, the conductor ring closing mechanism includes:

[0011] A control box, the lower surface of which is fixedly connected to the upper surface of the bracket, a motor is fixedly connected to the lower surface inside the control box, the output end of the motor is belt-driven with a rotating rod, the upper end of the rotating rod is rotatably connected to the upper surface inside the control box, a toothed ring is fixedly connected to the surface of the rotating rod, the tooth surface of the toothed ring is meshed with a toothed ring two, a rotating ring is fixedly connected to the upper end face of the toothed ring two, the upper end of the rotating ring is rotatably connected to the upper surface inside the control box, a threaded groove is formed on the inner wall of the toothed ring two, a threaded rod is threadedly connected to the groove wall of the threaded groove, and an opening is formed on the surface of the bracket for the threaded rod to pass through and move up and down.

[0012] Optionally, the conductor ring closing mechanism further includes:

[0013] A sliding rod, the upper surface of which is fixedly connected to the lower end face of the threaded rod, and both ends of the sliding rod are slidably connected to a kit. A first crank rod is rotatably connected to the side of the kit, and the other end of the first crank rod is rotatably connected to the side of the bracket. A second crank rod is also rotatably connected to the side of the kit, and the other end of the second crank rod is rotatably connected to an inductive conductor. A through groove is opened on the side of the bracket, and the groove wall is slidably connected to the side of the inductive conductor.

[0014] When the two inductive conductors are closed together, a closed circuit is formed.

[0015] Optionally, two closing compact mechanisms are provided, and the two closing compact mechanisms are respectively provided on opposite sides of the two inductive conductors;

[0016] The closed compact mechanism includes:

[0017] A connecting rod is provided, with its end face fixedly connected to the side of the inductor. A connecting plate is fixedly connected to the other side of the connecting rod. A through slot is provided on the side of the connecting plate facing the connecting rod. A sliding column is slidably connected to the wall of the slot. A limit plate is fixedly connected to the end face of the sliding column facing the connecting rod. A compact plate is fixedly connected to the end face of the sliding column away from the limit plate. A spring is fixedly connected to the side of the compact plate facing the connecting plate. The other end of the spring is fixedly connected to the side of the connecting plate.

[0018] Optionally, the closing compact mechanism further includes:

[0019] The connecting plate and the compact plate each have two obliquely oriented sliding grooves symmetrically arranged on their sides. Each of the four sliding grooves has a slider slidably connected to its groove wall. The four sliders are divided into two groups, one above the other, with the connecting rod as the dividing line. Each group of sliders has a sliding plate fixedly connected to its end face. The connecting plate is fixedly connected to the side of the sliding plate. A connecting rod is fixedly connected to the surface of the connecting plate. A moving plate is slidably sleeved on the surface of the connecting rod. A tension spring is sleeved on the surface of the connecting rod. The two ends of the tension spring are fixedly connected to the moving plate and the connecting plate, respectively.

[0020] A double compact rod is fixedly connected to the side of the movable plate near one inductor, and a single compact rod is fixedly connected to the side of the movable plate near the other inductor.

[0021] Optionally, the inductor detection mechanism includes:

[0022] An insulating sliding block has a groove on the upper surface of the base, the side of the groove being slidably connected to the side of the insulating sliding block, a conductive plate being fixedly connected to the upper surface of the insulating sliding block, a through wiring groove being formed on the side of the conductive plate, a through threaded groove being formed on the inner wall of the wiring groove, a small threaded rod being threadedly connected to the groove wall of the threaded groove, a conductive clamping plate being fixedly connected to the end face of the small threaded rod facing the inside of the wiring groove, an insulating handle being fixedly connected to the other end of the small threaded rod, and a coil being fixedly connected to the side of the conductive plate facing the inductor, the coil being sleeved on the surface of the inductor.

[0023] Optionally, the distribution network short-term load forecasting data acquisition system further includes a compact connection mechanism, which is disposed on the inductor to make the connection between the two inductors more compact.

[0024] Optionally, the compact connection mechanism includes:

[0025] The concave end connecting post and the convex end connecting post are provided. The end face of the concave end connecting post is fixedly connected to the side face of one of the inductors, and the end face of the convex end connecting post is fixedly connected to the side face of the other inductor. The concave end connecting post and the convex end connecting post are arranged facing each other.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] I. This invention determines whether the device can detect grid load data by closing and opening two inductive conductors. Compared with the traditional detection method of closing the inductor for a long time, this detection method can better obtain grid phase data, which is more conducive to the staff's prediction of grid load and makes the prediction more accurate. This device also greatly reduces the amount of grid measurement data, reduces data redundancy, and further simplifies the data, thereby further improving the effect of the device in short-term grid load data acquisition.

[0028] Second, by extending a set of compact plates, double compact rods, and a single compact rod on the side of the inductor, the present invention can further make the surface of the wire fit the device more closely, thereby further improving the accuracy of the data collected by the device.

[0029] Third, during the closing process of the inductor, the present invention simultaneously moves the concave end connecting post and the convex end connecting post, so that when the inductor closes, the concave end connecting post and the convex end connecting post will close first, increasing the contact area when the inductor closes. This effectively prevents the two inductors from being open-circuited due to poor contact at the inductor contact ends, thus affecting the measurement results. Attached Figure Description

[0030] Figure 1 This is a front view of the structure of the present invention;

[0031] Figure 2 This is a top view of the internal structure of the control box of the present invention;

[0032] Figure 3 This is a front view of the support structure of the present invention;

[0033] Figure 4 This is a front sectional view of the structure of the present invention;

[0034] Figure 5 This is a structural diagram of the coil in this invention;

[0035] Figure 6 This is a structural diagram of the double compact rod section of the present invention;

[0036] Figure 7 This is a structural diagram of the single compact rod section of the present invention;

[0037] Figure 8 For the present invention Figure 4 Enlarged view of the structure at point A inside;

[0038] Figure 9 For the present invention Figure 1 Enlarged view of the structure at point B in the middle.

[0039] In the diagram: 1. Base; 2. Signal transceiver and control assembly; 3. Support plate; 4. Bracket; 5. Control box; 6. Conductive plate; 7. Inductor signal processing assembly; 8. Rotating rod; 9. Gear ring one; 10. Gear ring two; 11. Threaded rod; 12. Motor; 13. Kit; 14. Crank rod one; 15. Crank rod two; 16. Inductor conductor; 17. Concave end connecting post; 18. Convex end connecting post; 19. Slide groove; 20. Sliding rod; 21. Slide groove; 22. 1. Insulating sliding block; 23. Wiring groove; 24. Connecting rod; 25. Sliding column; 26. Connecting plate one; 27. Spring; 28. Compact plate; 29. ​​Limiting plate; 30. Sliding plate; 31. Coil; 32. Double compact rod; 33. Single compact rod; 34. Conductive pressing plate; 35. Small threaded rod; 36. Insulating handle; 37. Sliding groove; 38. Slider; 39. Connecting plate; 40. Connecting rod; 41. Moving plate; 42. Tension spring; 43. Rotary ring. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1, please refer to Figures 1 to 9 This embodiment provides a technical solution: a distribution network short-term load forecast data acquisition system, including a base 1 and a bracket 4. Two support plates 3 are fixedly connected to both sides of the bracket 4. The lower surfaces of the four support plates 3 are fixedly connected to the upper surface of the base 1. A signal transceiver and control component 2 is fixedly connected to the upper surface of the base 1. An inductor signal processing component 7 is also fixedly connected to the upper surface of the base 1.

[0042] Conductor ring closing mechanism, which is mounted on bracket 4;

[0043] The conductor ring closure mechanism includes:

[0044] The lower surface of the control box 5 is fixedly connected to the upper surface of the bracket 4. The lower surface of the control box 5 is fixedly connected to the motor 12. The output end of the motor 12 is belt-driven to a rotating rod 8. The upper end of the rotating rod 8 is rotatably connected to the upper surface of the control box 5. The surface of the rotating rod 8 is fixedly connected to a toothed ring 9. The toothed surface of the toothed ring 9 is meshed with a toothed ring 10. The upper end face of the toothed ring 10 is fixedly connected to a rotating ring 43. The upper end of the rotating ring 43 is rotatably connected to the upper surface of the control box 5. The inner wall of the toothed ring 10 is provided with a threaded groove. The groove wall of the threaded groove is threadedly connected to a threaded rod 11. The surface of the bracket 4 is provided with an opening for the threaded rod 11 to pass through and move up and down.

[0045] The upper surface of the sliding rod 20 is fixedly connected to the lower end face of the threaded rod 11. Both ends of the sliding rod 20 are slidably connected to the kit 13. The side of the kit 13 is rotatably connected to the first crank rod 14. The other end of the first crank rod 14 is rotatably connected to the side of the bracket 4. The side of the kit 13 is also rotatably connected to the second crank rod 15. The other end of the second crank rod 15 is rotatably connected to the inductive conductor 16. The side of the bracket 4 has a through groove 19. The groove wall of the groove 19 is slidably connected to the side of the inductive conductor 16.

[0046] When two inductive conductors are closed in phase 16, a closed circuit is formed.

[0047] More specifically, in this embodiment: when using this device to measure the load data of the power grid, the device is fixed at the location where the measurement is needed, and then the wire is placed between the two inductive conductors 16. Next, if the power grid needs to be measured, the operator sends a command signal to the signal transceiver and control component 2 through the control center. The signal transceiver and control component 2 then sends a command to the motor 12, causing the motor 12 to rotate. The rotation of the motor 12 further drives the rotating rod 8 to rotate, which in turn drives the gear ring 9 to rotate, thereby causing the meshing gear ring 10 to rotate. During the rotation of the gear ring 10, the threaded rod 11 connected by the thread will move up and down. This gives the mechanism two motion states:

[0048] Firstly, when the threaded rod 11 descends, causing the sliding rod 20 to descend, it further causes the first crank rod 14 to deflect in a certain direction, thereby causing the assembly 13 to move inward. The inward movement of the assembly 13 further causes the second crank rod 15 to deflect in a certain direction, thereby pushing the inductor 16 to move inward, further realizing the closure of the two inductors 16.

[0049] Secondly, when the threaded rod 11 rises and drives the sliding rod 20 to rise, it will further cause the first crank rod 14 to deflect in a certain direction, causing the kit 13 to move outward, which in turn drives the second crank rod 15 to pull the inductor 16 outward, thereby achieving the separation of the inductor 16.

[0050] This device is designed to determine whether it can detect grid load data by closing and opening two inductor conductors 16. Compared with the traditional detection method of closing the inductor for a long time, this detection method can better obtain grid phase data, which is more conducive to the staff's prediction of grid load and makes the prediction more accurate. This device also greatly reduces the amount of grid measurement data, reduces data redundancy, and further simplifies the data, thereby further improving the effect of this device in short-term grid load data acquisition.

[0051] It is worth noting that this embodiment also includes: a closing compaction mechanism, which is disposed on the conductor ring closing mechanism. There are two closing compaction mechanisms, which are respectively disposed on opposite sides of the two inductor conductors 16.

[0052] The closed compact mechanism includes:

[0053] A connecting rod 24 is fixedly connected to the side of an inductor 16 at its end face. A connecting plate 26 is fixedly connected to the other side of the connecting rod 24. A through slot is opened on the side of the connecting plate 26 facing the connecting rod 24. A sliding post 25 is slidably connected to the wall of the slot. A limit plate 29 is fixedly connected to the end face of the sliding post 25 facing the connecting rod 24. A compact plate 28 is fixedly connected to the end face of the sliding post 25 away from the limit plate 29. A spring 27 is fixedly connected to the side of the compact plate 28 facing the connecting plate 26. The other end of the spring 27 is fixedly connected to the side of the connecting plate 26.

[0054] The sides of the connecting plate 39, connecting plate 26, and compact plate 28 are symmetrically provided with two obliquely arranged sliding grooves 37. The walls of the four sliding grooves 37 are slidably connected to sliders 38. The four sliders 38 are divided into two groups, one above the other, with the connecting rod 24 as the dividing line. The end faces of the two groups of sliders 38 are fixedly connected to sliding plates 30. The connecting plate 39 is fixedly connected to the side of the sliding plates 30. The surface of the connecting plate 39 is fixedly connected to the connecting rod 40. The surface of the connecting rod 40 is slidably sleeved with a moving plate 41. The surface of the connecting rod 40 is sleeved with a tension spring 42. The two ends of the tension spring 42 are fixedly connected to the moving plate 41 and the connecting plate 39, respectively.

[0055] A double compact rod 32 is fixedly connected to the side of the movable plate 41 near one side of the inductor 16, and a single compact rod 33 is fixedly connected to the side of the movable plate 41 near the other side of the inductor 16.

[0056] More specifically, in this embodiment: when the inductor 16 moves inward, it further drives the connecting rod 24 inward, thereby causing the connecting plate 26 to move inward. Simultaneously, this drives the compact plate 28 inward. During the inward movement of the compact plate 28, it first contacts the surface of the wire. Then, as the connecting plate 26 continues to move inward, the distance between the connecting plate 26 and the compact plate 28 is further shortened, compressing the spring 27, and combining... Figure 4 , Figure 5 ,as well as Figure 9 As shown, when the distance between the connecting plate 26 and the compact plate 28 is shortened, the slider 38 will slide obliquely along the sliding groove 37 toward the connecting rod 24, so as to cause the two double compact rods 32 to move closer to each other in the opposite direction, and the two single compact rods 33 to move closer to each other in the opposite direction. This makes the wire wall of the wire fit the device more closely. When the two inductors 16 move outward, the double compact rods 32 and the single compact rods 33 will return to their original positions under the action of the spring 27.

[0057] It is worth noting that, combined with Figure 9 As shown, the purpose of the connecting plate 39, connecting rod 40, and tension spring 42 is to ensure that when the slider 38 slides obliquely along the sliding groove 37 toward the connecting rod 24, its sliding plate 30 and connecting plate 39 are also far away from the moving plate 41. Thus, through the sliding cooperation between the moving plate 41 and the connecting rod 40, the moving plate 41 can slide vertically only along the side of the compact plate 28 without getting stuck. Furthermore, through the self-resetting property of the tension spring 42 after being stretched, the moving plate 41 can always be in contact with the side of the compact plate 28 and will not move on its own.

[0058] The design of this mechanism, by extending a set of compact plates 28, a single compact rod 33, and a double compact rod 32 on the side of the inductor conductor 16, can further make the surface of the wire fit the device more closely, thereby further improving the accuracy of the data collected by the device.

[0059] Example 2: Based on the above examples, please refer to... Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 8 In this embodiment, it also includes an inductor detection mechanism, which is mounted on the base 1 and is used to measure the current generated by electromagnetic induction.

[0060] Inductor testing organizations include:

[0061] An insulating sliding block 22 has a groove 21 on the upper surface of the base 1. The side of the groove 21 is slidably connected to the side of the insulating sliding block 22. A conductive plate 6 is fixedly connected to the upper surface of the insulating sliding block 22. A through wiring groove 23 is opened on the side of the conductive plate 6. A through threaded groove is opened on the inner wall of the wiring groove 23. A small threaded rod 35 is threadedly connected to the groove wall of the threaded groove. A conductive clamping plate 34 is fixedly connected to the end face of the small threaded rod 35 facing the inside of the wiring groove 23. An insulating handle 36 is fixedly connected to the other end of the small threaded rod 35. A coil 31 is fixedly connected to the side of the conductive plate 6 facing the inductor 16. The coil 31 is sleeved on the surface of the inductor 16.

[0062] More specifically, in this embodiment: first, insert the wire into the wiring slot 23, then rotate the insulating handle 36 to move the conductive clamping plate 34 toward the wall of the wiring slot 23, then press the wire tightly together with the wiring slot 23, and then connect the other end of the wire to the inductor signal processing component 7. When the inductor conductor 16 is closed, the coil 31 will generate current under the principle of electromagnetic induction, which can be detected by the inductor signal processing component 7. When the inductor conductor 16 is open, the coil 31 will not generate current, and the inductor signal processing component 7 will not react.

[0063] This device transforms large current data from the power grid into smaller current data through electromagnetic induction, making the collected data more visual and easier for staff to process. Furthermore, this device is linked to inductor 16, enabling more accurate detection of power grid data over a given time period.

[0064] Example 3: Based on the above examples, please refer to... Figure 1 , Figure 3 and Figure 4 In this embodiment, the distribution network short-term load forecasting data acquisition system also includes a connection compaction mechanism, which is disposed on the inductor conductor 16 to make the two inductor conductors 16 more compactly connected.

[0065] The compact connection mechanism includes:

[0066] The concave end connecting post 17 and the convex end connecting post 18 are fixedly connected to the side of one of the inductors 16, and the end face of the convex end connecting post 18 is fixedly connected to the side of the other inductor 16. The concave end connecting post 17 and the convex end connecting post 18 are arranged facing each other.

[0067] More specifically, in this embodiment: during the closing process of the inductor 16, the concave end connecting post 17 and the convex end connecting post 18 will move simultaneously, so that when the inductor 16 closes, the concave end connecting post 17 and the convex end connecting post 18 will close first, increasing the contact area when the inductor 16 closes. This can effectively prevent the two inductors 16 from being open-circuited due to poor contact at the contact ends, thus affecting the measurement results.

[0068] Working principle: This short-term load forecasting data acquisition system for power distribution networks involves the following steps:

[0069] S1: First, fix the device at the place where the measurement is to be performed, and then place the wire between the two inductive conductors 16;

[0070] S2: Next, the staff sends a command signal to the signal transceiver and control component 2 through the control center, so that the motor 12 moves and drives the conductor ring closing mechanism to operate. With the assistance of the closing and compacting mechanism, the wires fit the device more closely, thereby detecting the power grid.

[0071] S3: Next, the conductor ring closing mechanism operates to close the inductor conductor 16, thereby generating current in the inductor detection mechanism to measure the data of the power grid.

[0072] S4: The data collected later will be sent back to the control center through signal transceiver and control component 2 for use by staff;

[0073] S5: Finally, after the test is completed, disconnect the inductor 16, and then the staff will summarize the collected data to complete the use of this device.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A data acquisition system for short-term load forecasting in a distribution network, comprising a base (1) and a support (4), characterized in that: Two support plates (3) are fixedly connected to both sides of the bracket (4). The lower surfaces of the four support plates (3) are fixedly connected to the upper surface of the base (1). A signal transceiver and control component (2) is fixedly connected to the upper surface of the base (1). An inductor signal processing component (7) is also fixedly connected to the upper surface of the base (1). A conductor ring closing mechanism is provided on the bracket (4); A closing compact mechanism is provided on the conductor ring closing mechanism; An inductor detection mechanism is provided on the base (1) and is used to measure the current generated by electromagnetic induction. The conductor ring closing mechanism includes a control box (5), the lower surface of the control box (5) is fixedly connected to the upper surface of the bracket (4), a motor (12) is fixedly connected to the lower surface inside the control box (5), a rotating rod (8) is belt-driven at the output end of the motor (12), the upper end of the rotating rod (8) is rotatably connected to the upper surface inside the control box (5), a toothed ring one (9) is fixedly connected to the surface of the rotating rod (8), a toothed ring two (10) is meshed with the tooth surface of the toothed ring one (9), a rotating ring (43) is fixedly connected to the upper end face of the toothed ring two (10), the upper end of the rotating ring (43) is rotatably connected to the upper surface inside the control box (5), a threaded groove is opened on the inner wall of the toothed ring two (10), a threaded rod (11) is threadedly connected to the groove wall of the threaded groove, and an opening is opened on the surface of the bracket (4) for the threaded rod (11) to pass through and move up and down; The conductor ring closing mechanism also includes a sliding rod (20), the upper surface of which is fixedly connected to the lower end face of the threaded rod (11), and both ends of the sliding rod (20) are slidably connected to a kit (13). A crank rod (14) is rotatably connected to the side of the kit (13), and the other end of the crank rod (14) is rotatably connected to the side of the bracket (4). A crank rod (25) is also rotatably connected to the side of the kit (13), and an inductive conductor (16) is rotatably connected to the other end of the crank rod (25). A through groove (19) is opened on the side of the bracket (4), and the groove wall of the groove (19) is slidably connected to the side of the inductive conductor (16). When the two inductors (16) are closed together, a closed circuit is formed.

2. The distribution network short-term load forecasting data acquisition system according to claim 1, characterized in that: Two closing compact mechanisms are provided, and the two closing compact mechanisms are respectively provided on opposite sides of the two inductive conductors (16); The closed compact mechanism includes a connecting rod (24), the end face of which is fixedly connected to the side of the inductor (16), and a connecting plate (26) fixedly connected to the other side of the connecting rod (24). The connecting plate (26) has a through slot on the side facing the connecting rod (24), and a sliding column (25) is slidably connected to the wall of the slot. A limiting plate (29) is fixedly connected to the end face of the sliding column (25) facing the connecting rod (24), and a compact plate (28) is fixedly connected to the end face of the sliding column (25) away from the limiting plate (29). A spring (27) is fixedly connected to the side of the compact plate (28) facing the connecting plate (26), and the other end of the spring (27) is fixedly connected to the side of the connecting plate (26).

3. The distribution network short-term load forecasting data acquisition system according to claim 2, characterized in that: The closed compact mechanism also includes a connecting plate (39). The sides of the connecting plate (26) and the compact plate (28) are symmetrically provided with two obliquely arranged sliding grooves (37). The walls of the four sliding grooves (37) are slidably connected with sliders (38). The four sliders (38) are divided into two groups, with the connecting rod (24) as the dividing line. The end faces of the two groups of sliders (38) are fixedly connected with sliding plates (30). The connecting plate (39) is fixedly connected to the side of the sliding plate (30). The surface of the connecting plate (39) is fixedly connected with a connecting rod (40). The surface of the connecting rod (40) is slidably sleeved with a moving plate (41). The surface of the connecting rod (40) is sleeved with a tension spring (42). The two ends of the tension spring (42) are fixedly connected to the moving plate (41) and the connecting plate (39) respectively. A double compact rod (32) is fixedly connected to the side of the movable plate (41) near one side of the inductor (16), and a single compact rod (33) is fixedly connected to the side of the movable plate (41) near the other side of the inductor (16).

4. The distribution network short-term load forecasting data acquisition system according to claim 3, characterized in that: The inductor detection mechanism includes an insulating sliding block (22). A groove (21) is provided on the upper surface of the base (1). The side of the groove (21) is slidably connected to the side of the insulating sliding block (22). A conductive plate (6) is fixedly connected to the upper surface of the insulating sliding block (22). A through wiring groove (23) is provided on the side of the conductive plate (6). A through threaded groove is provided on the inner wall of the wiring groove (23). A small threaded rod (35) is threadedly connected to the groove wall of the threaded groove. A conductive clamping plate (34) is fixedly connected to the end face of the small threaded rod (35) facing the inside of the wiring groove (23). An insulating handle (36) is fixedly connected to the other end of the small threaded rod (35). A coil (31) is fixedly connected to the side of the conductive plate (6) facing the inductor (16), and the coil (31) is sleeved on the surface of the inductor (16).

5. The distribution network short-term load forecasting data acquisition system according to claim 4, characterized in that: The distribution network short-term load forecasting data acquisition system also includes a compact connection mechanism, which is disposed on the inductor (16); The compact connection mechanism includes a concave end connecting post (17) and a convex end connecting post (18), the end face of which is fixedly connected to the side face of one of the inductors (16).

6. The distribution network short-term load forecasting data acquisition system according to claim 5, characterized in that: The end face of the convex end connecting post (18) is fixedly connected to the side face of the other inductor (16), and the concave end connecting post (17) and the convex end connecting post (18) are arranged opposite each other.

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