Data acquisition analysis device and high voltage cabinet with load prediction module

Abstract

The utility model discloses data acquisition analysis device and high pressure cabinet with load prediction module, including data acquisition analysis unit, data acquisition analysis unit includes: sensor module, set up in high pressure cabinet body inside, and it contains current transformer, voltage transformer and temperature sensor, signal conditioning circuit, it is electrically connected with sensor module, is used for to the filter amplification of acquisition signal. Data acquisition analysis device and high pressure cabinet with load prediction module provided by the utility model, through the setting of quick -release structure, in the through groove and enter the connecting column, make the locking block through in two through grooves, rotate ninety degrees and make locking block and locking groove form the corresponding state, like this can make locking block place in locking groove and lock through the support effect of spring, realize quick installation, similarly, push the connecting column inwards, make locking groove and locking block form separation, and reverse rotation ninety degrees, make the connecting column in the through groove and separate from the outside.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switchgear technology, and in particular to a data acquisition and analysis device and a high-voltage switchgear with a load prediction module. Background Technology

[0002] High-voltage switchgear refers to electrical products used in power systems for power generation, transmission, distribution, energy conversion, and consumption, performing functions such as switching, control, or protection. These products range in voltage from 3.6kV to 550kV and mainly include high-voltage circuit breakers, high-voltage disconnect switches and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. The high-voltage switchgear manufacturing industry is a crucial component of the power transmission and transformation equipment manufacturing industry and holds a very important position in the entire power industry.

[0003] Currently, some high-voltage switchgear is equipped with data acquisition and analysis devices and load forecasting modules to achieve safer and more reliable operation. This is the core manifestation of the power distribution system's upgrade towards intelligence, digitalization, and networking. Its purpose is to shift from traditional passive operation and maintenance to proactive and precise management, providing important support for the safe, reliable, economical, and efficient operation of the system.

[0004] Conventional data acquisition and analysis devices and load prediction modules are mostly fixed inside the high-voltage cabinet by bolt fastening. Therefore, in practical applications, how to achieve rapid disassembly and assembly when performing regular maintenance or repair of the module is a technical problem that needs to be solved by those skilled in the art. To this end, a data acquisition and analysis device and a high-voltage cabinet with a load prediction module are proposed. Utility Model Content

[0005] Therefore, it is necessary to provide a data acquisition and analysis device and a high-voltage switchgear with a load prediction module to address the above-mentioned technical issues. The data acquisition and analysis unit and the data acquisition and analysis device can be quickly disassembled and assembled through a quick-release structure to meet the operation and maintenance needs of the high-voltage switchgear in actual application.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A data acquisition and analysis device includes a data acquisition and analysis unit, wherein the data acquisition and analysis unit includes:

[0008] The sensor module, located inside the high-voltage cabinet, includes a current transformer, a voltage transformer, and a temperature sensor.

[0009] The signal conditioning circuit, which is electrically connected to the sensor module, is used to filter and amplify the acquired signal.

[0010] A data processor, which is connected to the output of the signal conditioning circuit and has a built-in storage unit;

[0011] The communication module connects to the data processor.

[0012] Furthermore, the current transformer of the sensor module is mounted on the three-phase main busbar inside the high-voltage cabinet, the voltage transformer is connected in parallel on the three-phase main busbar, and the temperature sensor is attached to the surface of the high-voltage circuit breaker.

[0013] A high-voltage switchgear with a load prediction module includes a data acquisition and analysis device and a high-voltage switchgear body. The bottom of the high-voltage switchgear body has a mounting cavity for the fixed installation of a mounting rail inside it. The surface of the mounting rail is fitted with a quick-release structure. Both the data acquisition and analysis unit and the load prediction module are installed in the mounting cavity through the quick-release structure.

[0014] Furthermore, the quick-release structure includes a mounting base that is slidably fitted onto the mounting track. The front and back of the mounting base are provided with corresponding through grooves. A connecting post is slidably inserted into the through groove, and locking blocks are provided on both sides of the surface of the connecting post.

[0015] Furthermore, a locking groove communicating with the through groove is provided on the back of the mounting base;

[0016] The locking block has a locking buckle on its front side, the mounting track has a buckle groove on its surface corresponding to the locking groove, and the bottom of the mounting base is threaded with a positioning bolt.

[0017] Furthermore, support rods are fixed at the four corners of the back of the mounting base, and abutment plates are slidably fitted on the surfaces of the four support rods. Limiting discs are fixed at the ends of the support rods, and springs are fitted on the surfaces of the support rods. The two ends of the springs are respectively connected to the surfaces of the corresponding limiting discs and abutment plates.

[0018] Furthermore, the high-voltage cabinet is divided into a high-voltage busbar compartment, a vacuum circuit breaker compartment, and a cable compartment. The high-voltage busbar compartment and the vacuum circuit breaker compartment are respectively equipped with a three-phase main busbar and a high-voltage circuit breaker.

[0019] Furthermore, the load prediction module includes a microprocessor and a prediction algorithm storage chip, wherein the prediction algorithm storage chip contains a neural network prediction program based on historical load data.

[0020] Furthermore, the load prediction module receives processed data from the data acquisition and analysis unit through the communication module, and its output is connected to the protection unit of the high-voltage cabinet.

[0021] Furthermore, the protection unit includes a programmable logic controller, whose input terminal receives an overload warning signal output by the load prediction module, and whose output terminal is connected to the tripping coil of the high-voltage circuit breaker.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The data acquisition and analysis device and the high-voltage cabinet with load prediction module provided by this utility model, through the setting of the quick-release structure, the connecting column is inserted into the through slot, and after the locking block passes through the two through slots, it is rotated 90 degrees so that the locking block and the locking slot are in a corresponding state. In this way, the locking block can be placed into the locking slot for locking by the support of the spring, so as to achieve quick installation.

[0024] Similarly, by pushing the connecting column inward, the locking groove and the locking block are separated, and by rotating it 90 degrees in the opposite direction, the connecting column is disengaged from the outside through the groove. This allows for the disassembly of the data acquisition and analysis unit and the load prediction module, thus facilitating daily operation and maintenance and making it more practical. Attached Figure Description

[0025] Figure 1 A schematic diagram of the data acquisition and analysis device and the high-voltage switchgear with load prediction module provided by this utility model;

[0026] Figure 2 A front view of the data acquisition and analysis device and the high-voltage switchgear with load prediction module provided by this utility model;

[0027] Figure 3 A schematic diagram of the quick-release structure of the data acquisition and analysis device and the high-voltage switchgear with load prediction module provided by this utility model;

[0028] Figure 4 A schematic diagram of the first form of the quick-release structure of the data acquisition and analysis device and the high-voltage switchgear with load prediction module provided by this utility model.

[0029] Figure 5 A schematic diagram of the second form of the quick-release structure of the data acquisition and analysis device and the high-voltage switchgear with load prediction module provided by this utility model.

[0030] Figure 6 The data acquisition and analysis device and the high-voltage switchgear with load prediction module provided by this utility model are shown in the structural diagram.

[0031] The markings in the diagram are explained as follows:

[0032] 1. Data acquisition and analysis unit; 11. Sensor module; 12. Signal conditioning circuit; 13. Data processor; 14. Communication module;

[0033] 2. High-voltage cabinet; 21. Mounting cavity; 22. Mounting rail; 23. High-voltage busbar compartment; 24. Vacuum circuit breaker compartment; 25. Cable compartment;

[0034] 3. Quick-release structure; 31. Mounting base; 32. Through groove; 33. Connecting post; 34. Locking block; 35. Locking groove; 36. Locking buckle; 37. Buckle groove; 38. Positioning bolt;

[0035] 310. Support rod; 311. Contact plate; 312. Limiting plate; 313. Spring;

[0036] 4. Load forecasting module; 41. Microprocessor; 42. Forecasting algorithm storage chip;

[0037] 5. Protection unit; 51. Programmable logic controller. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0039] Example 1

[0040] Please refer to Figures 1-6 As shown, the data acquisition and analysis device and the high-voltage switchgear with a load forecasting module include a data acquisition and analysis unit 1, which includes:

[0041] The sensor module 11 is located inside the high-voltage cabinet 2 and includes a current transformer, a voltage transformer and a temperature sensor.

[0042] The signal conditioning circuit 12 is electrically connected to the sensor module 11 and is used to filter and amplify the acquired signal. Since the electromagnetic interference inside the high voltage cabinet 2 is relatively large, the signal conditioning circuit 12 can filter out the noise and extract only the real current and voltage signals to avoid misjudgment.

[0043] The data processor 13 is connected to the output of the signal conditioning circuit 12 and has a built-in storage unit. After acquiring data, the data processor 13 can perform some basic analysis, such as calculating the average current, determining whether the three phases are unbalanced, and checking the temperature rise rate. After the calculation is completed, the important results are packaged and input into the data acquisition and analysis unit 1 through the communication module 14.

[0044] Communication module 14 is connected to data processor 13:

[0045] The current transformer of the sensor module 11 is mounted on the three-phase main busbar inside the high-voltage cabinet, the voltage transformer is connected in parallel on the three-phase main busbar, and the temperature sensor is attached to the surface of the high-voltage circuit breaker.

[0046] In this embodiment, the data acquisition and analysis unit 1 can monitor the current, voltage stability, and temperature of key parts (such as switch contacts) inside the high-voltage cabinet 2 through current transformers, voltage transformers, and temperature sensors. After the corresponding data is collected, it can be input into the data processor 13 for preliminary processing. The resulting data is then integrated and input into the load prediction module 4 through the communication module 14.

[0047] Example 2

[0048] The data acquisition and analysis device and the high-voltage switchgear with load prediction module provided in Embodiment 1 are further optimized, specifically, as follows: Figure 4 As shown, it also includes a high-voltage cabinet 2, and the bottom of the high-voltage cabinet 2 has a mounting cavity 21 for fixing the mounting rail 22 inside it. The surface of the mounting rail 22 is fitted with a quick-release structure 3. The data acquisition and analysis unit 1 and the load prediction module 4 are both installed in the mounting cavity 21 through the quick-release structure 3.

[0049] The quick-release structure 3 includes a mounting base 31 that is slidably sleeved on the mounting rail 22. The mounting base 31 can slide along the length direction of the mounting rail 22. The front and back of the mounting base 31 are provided with corresponding through grooves 32. A connecting post 33 is slidably inserted in the through groove 32. The two sides of the surface of the connecting post 33 have locking blocks 34. The connecting post 33 with locking blocks 34 can pass through the two corresponding through grooves 32.

[0050] The mounting base 31 has a locking groove 35 on its back side that communicates with the through groove 32;

[0051] The front of the locking block 34 has a locking buckle 36, the surface of the mounting rail 22 has a buckle groove 37 corresponding to the position of the locking groove 35, and the bottom of the mounting base 31 is threaded with a positioning bolt 38. Rotating the positioning bolt 38 so that one end abuts against the top of the mounting rail 22 can form a positioning effect on the mounting base 31.

[0052] Support rods 310 are fixed at the four corners of the back of the mounting base 31. The surfaces of the four support rods 310 are slidably fitted with abutment plates 311. Limiting discs 312 are fixed at the ends of the support rods 310. Springs 313 are also fitted on the surfaces of the support rods 310. The two ends of the springs 313 are respectively connected to the surfaces of the corresponding limiting discs 312 and abutment plates 311. Under the support of the springs 313, the abutment plates 311 have a tendency to slide away from the limiting discs 312.

[0053] When the connecting post 33 needs to be installed, adjust the position of the locking block 34 on the connecting post 33 so that it passes through the two through slots 32 in sequence. The end of the connecting post 33 will abut against the surface of the abutment plate 311. The abutment plate 311, which is subjected to the abutment, will overcome the force of the spring 313 and slide on the surface of the support rod 310, causing the spring 313 to be compressed. Finally, the connecting post 33 will be completely passed through the two through slots 32.

[0054] Rotate the connecting column 33 by 90 degrees so that the locking block 34 on it aligns with the locking groove 35, and then release the connecting column 33. At this time, the supporting action of the spring 313 allows the contact plate 311 to slide against the connecting column 33, and finally the locking block 34 to perform a stop and limit action in the locking groove 35. In this way, the connecting column 33 will not rotate, nor will it have any independent forward or backward displacement. This satisfies the stability of the load prediction module 4 and the data acquisition and analysis unit 1 connected to one end of the connecting column 33.

[0055] Furthermore, after the locking block 34 and the locking groove 35 are locked in place, the mounting seat 31 can slide on the surface of the mounting rail 22, allowing the locking buckle 36 to slide into the corresponding buckle groove 37, which further improves the stability of the mounting seat 31 relative to the mounting rail 22.

[0056] When it is necessary to quickly disassemble the data acquisition and analysis unit 1 and the load prediction module 4, push the connecting column 33 on it to make it abut against the surface of the contact plate 311. At this time, the locking block 34 will disengage from the corresponding locking groove 35. Then rotate the connecting column 33 ninety degrees so that the connecting column 33 and the locking block 34 on it can be removed from the groove 32, thereby realizing the disassembly.

[0057] Example 3

[0058] Further optimizations were made to the data acquisition and analysis device and the high-voltage switchgear with load prediction module provided in Embodiment 1 or 2, such as... Figures 1-3 As shown, the load prediction module 4 includes a microprocessor 41 and a prediction algorithm storage chip 42, and the prediction algorithm storage chip 42 contains a neural network prediction program based on historical load data.

[0059] The high-voltage cabinet 2 is divided into a high-voltage busbar compartment 23, a vacuum circuit breaker compartment 24 and a cable compartment 25. The high-voltage busbar compartment 23 and the vacuum circuit breaker compartment 24 are respectively equipped with a three-phase main busbar and a high-voltage circuit breaker.

[0060] The load prediction module 4 receives the processed data from the data acquisition and analysis unit 1 through the communication module 14, and its output is connected to the protection unit 5 of the high-voltage cabinet 2.

[0061] The protection unit 5 includes a programmable logic controller 51, whose input terminal receives the overload warning signal output by the load prediction module 4, and whose output terminal is connected to the tripping coil of the high-voltage circuit breaker;

[0062] In Example 1, the data collected by the data acquisition and analysis unit 1 can be input into the load prediction module 4. At this time, the load prediction module 4 can predict the load that the cabinet will carry in the next ten minutes based on the real-time data and past electricity usage habits. For example, if it predicts that the current will surge to a dangerous value in one minute, or if it predicts that there may be an overload, it will immediately send an alarm to the cabinet's protection system (PLC). The protection unit 5 can then take action in advance, such as cutting off less important loads in advance, or preparing the circuit breaker for rapid tripping.

[0063] The specific structure, principle and algorithm of the data acquisition and analysis unit 1 and the load prediction module 4 described above are already common technical knowledge known to those skilled in the art, and therefore no further elaboration is required in this embodiment.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A data acquisition and analysis device, characterized in that, Includes a data acquisition and analysis unit (1), which includes: The sensor module (11) is located inside the high voltage cabinet (2) and includes a current transformer, a voltage transformer and a temperature sensor. The signal conditioning circuit (12) is electrically connected to the sensor module (11) and is used to filter and amplify the acquired signal; The data processor (13) is connected to the output of the signal conditioning circuit (12) and has a built-in storage unit; The communication module (14) is connected to the data processor (13).

2. The data acquisition and analysis device according to claim 1, characterized in that, The current transformer of the sensor module (11) is mounted on the three-phase main busbar inside the high-voltage cabinet, the voltage transformer is connected in parallel to the three-phase main busbar, and the temperature sensor is attached to the surface of the high-voltage circuit breaker.

3. A high-voltage switchgear with a load prediction module, comprising the data acquisition and analysis device according to any one of claims 1-2, characterized in that, It also includes a high-voltage cabinet (2), with an installation cavity (21) at the bottom of the high-voltage cabinet (2) for the fixed installation of the mounting rail (22) inside it. The surface of the mounting rail (22) is equipped with a quick-release structure (3). The data acquisition and analysis unit (1) and the load prediction module (4) are both installed in the installation cavity (21) through the quick-release structure (3).

4. The high-voltage switchgear with load prediction module according to claim 3, characterized in that, The quick-release structure (3) includes a mounting base (31) that is slidably sleeved on the mounting rail (22). The mounting base (31) has corresponding through grooves (32) on its front and back sides. A connecting post (33) is slidably inserted in the through groove (32). The connecting post (33) has locking blocks (34) on both sides of its surface.

5. The high-voltage switchgear with load prediction module according to claim 4, characterized in that, The mounting base (31) has a locking groove (35) on its back side that communicates with the through groove (32); The locking block (34) has a locking buckle (36) on its front side, the mounting rail (22) has a buckle groove (37) at the position corresponding to the locking groove (35) on its surface, and a positioning bolt (38) is threaded through the bottom of the mounting base (31).

6. The high-voltage switchgear with load prediction module according to claim 5, characterized in that, Support rods (310) are fixed at the four corners of the back of the mounting base (31). The surfaces of the four support rods (310) are slidably fitted with abutment plates (311). Limiting discs (312) are fixed at the ends of the support rods (310). Springs (313) are also fitted on the surfaces of the support rods (310). The two ends of the springs (313) are respectively connected to the surfaces of the corresponding limiting discs (312) and abutment plates (311).

7. The high-voltage switchgear with load prediction module according to claim 3, characterized in that, The high-voltage cabinet (2) is divided into a high-voltage busbar compartment (23), a vacuum circuit breaker compartment (24) and a cable compartment (25). The high-voltage busbar compartment (23) and the vacuum circuit breaker compartment (24) are respectively equipped with a three-phase main busbar and a high-voltage circuit breaker.

8. The high-voltage switchgear with load prediction module according to claim 7, characterized in that, The load prediction module (4) includes a microprocessor (41) and a prediction algorithm storage chip (42), which contains a neural network prediction program based on historical load data.

9. The high-voltage switchgear with load prediction module according to claim 8, characterized in that, The load prediction module (4) receives the processed data from the data acquisition and analysis unit (1) through the communication module (14), and its output is connected to the protection unit (5) of the high-voltage cabinet (2).

10. The high-voltage switchgear with load prediction module according to claim 9, characterized in that, The protection unit (5) includes a programmable logic controller (51), whose input terminal receives the overload warning signal output by the load prediction module (4), and whose output terminal is connected to the tripping coil of the high-voltage circuit breaker.

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