A combined high and low voltage power distribution cabinet comprehensive protection system and method

Abstract

The present invention belongs to the technical field of safety monitoring of combined high and low voltage distribution cabinets, and discloses a comprehensive protection system and method for combined high and low voltage distribution cabinets. When analyzing the influence index between the high and low voltage transformation areas of the target distribution cabinet, the present invention analyzes from aspects such as the distance between the high and low voltage transformation areas of the target distribution cabinet, the quality of the insulating partition board, and the operation quality of the transformer. This analysis method can comprehensively and accurately evaluate the influence between the high and low voltage transformation areas of the target distribution cabinet, providing a strong guarantee for the safe operation of the distribution cabinet. When the present invention determines that there is an abnormality, it further identifies the abnormal direction. This analysis method can quickly determine the specific source of the problem after the abnormality is discovered, avoiding the waste of time and manpower caused by blind troubleshooting. It improves the efficiency of troubleshooting, can handle problems promptly and accurately in case of emergency, ensures the safe and stable operation of the target distribution cabinet, and improves the reliability and stability of the entire power system.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety monitoring of combined high - and low - voltage distribution cabinets, and relates to a comprehensive protection system and method for combined high - and low - voltage distribution cabinets. Background Art

[0002] Combined high - and low - voltage distribution cabinets, also known as high - and low - voltage switch cabinets or high - and low - voltage electrical complete sets of equipment, are important components in modern power systems. They are widely used in industrial, commercial, and civil buildings, not only playing the role of distributing electric energy but also ensuring the safe operation of the power system. High - and low - voltage distribution cabinets mainly consist of high - voltage power distribution equipment and low - voltage power distribution equipment. In high - and low - voltage distribution cabinets, if there is an improper influence between the high - voltage area and the low - voltage area, electromagnetic interference may be generated, which will in turn affect the normal operation of the equipment. Therefore, the research on the comprehensive protection of combined high - and low - voltage distribution cabinets based on the influence between the high - and low - voltage transformation areas of the target distribution cabinet is of great significance.

[0003] The existing safety monitoring of combined high - and low - voltage distribution cabinets usually analyzes the output power parameters, ignoring the comprehensive analysis of the distance between high - and low - voltage transformation areas, the quality of insulating partitions, and the operation quality of transformers. This analysis method may lead to the inability to detect in time the discharge risk caused by unreasonable spacing, cannot effectively monitor the leakage hidden danger brought by the quality problem of insulating partitions, and is also difficult to accurately grasp the impact of abnormal transformer operation status on the safe operation of the overall distribution cabinet, making the safety monitoring incomplete and unable to ensure the stable and reliable operation of high - and low - voltage distribution cabinets from multiple dimensions, increasing the probability of potential safety accidents.

[0004] The existing safety monitoring of combined high - and low - voltage distribution cabinets usually only involves the judgment of abnormal states, ignoring the further analysis of specific abnormal directions. This analysis method makes it difficult for staff to quickly determine whether the problem lies in the circuit part, the equipment connection part, or other specific areas, reducing the efficiency of troubleshooting. At the same time, due to the unclear location of the specific abnormality, it may lead to unnecessary comprehensive inspections, wasting a large amount of time and labor costs, seriously affecting the safe and stable operation of high - and low - voltage distribution cabinets and the reliability of the entire power system. Summary of the Invention

[0005] In view of this, to solve the problems raised in the above - mentioned background art, a comprehensive protection system and method for combined high - and low - voltage distribution cabinets are proposed.

[0006] The object of the present invention can be achieved by the following technical solutions: In the first aspect of the present invention, a comprehensive protection system for combined high - and low - voltage distribution cabinets is proposed, including: an electrical component spacing analysis module, which is used to collect the distribution image of electrical components of the target distribution cabinet by using a high - definition camera and analyze the evaluation of the electrical component spacing between the high - and low - voltage transformation areas of the target distribution cabinet.

[0007] The line layout spacing analysis module is used to collect the line layout distribution images of the target power distribution cabinet by using a high-definition camera, and analyze the evaluation of the line layout spacing between the high-voltage and low-voltage transformation areas of the target power distribution cabinet.

[0008] The insulating partition quality analysis module is used to collect the apparent quality images of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet by using a high-definition camera, and analyze the quality of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet.

[0009] The transformer operation quality analysis module is used to test each transformer of the target power distribution cabinet to obtain the electromagnetic leakage influence data of the target power distribution cabinet. The electromagnetic leakage influence data includes iron core quality data and winding quality data. The iron core quality data specifically includes the iron core volume, iron core magnetic permeability, and monomer spacing. The winding quality data specifically includes the number of winding turns and the offset distance of the winding geometric center, and analyze the operation quality of the transformer of the target power distribution cabinet.

[0010] The high- and low-voltage transformation area anomaly identification module is used to analyze the influence index between the high- and low-voltage transformation areas of the target power distribution cabinet based on the evaluation of the electrical component spacing, line layout spacing, insulating partition quality, and transformer operation quality between the high- and low-voltage transformation areas of the target power distribution cabinet, and then judge whether there is an anomaly in the high- and low-voltage transformation areas of the target power distribution cabinet. If so, further identify the specific anomaly direction.

[0011] The second aspect of the present invention proposes a combined high- and low-voltage power distribution cabinet comprehensive protection method, including: S1. Electrical component spacing analysis: Use a high-definition camera to collect the electrical component distribution images of the target power distribution cabinet, and analyze the evaluation of the electrical component spacing between the high- and low-voltage transformation areas of the target power distribution cabinet.

[0012] S2. Line layout spacing analysis: Use a high-definition camera to collect the line layout distribution images of the target power distribution cabinet, and analyze the evaluation of the line layout spacing between the high- and low-voltage transformation areas of the target power distribution cabinet.

[0013] S3. Insulating partition quality analysis: Use a high-definition camera to collect the apparent quality images of the insulating partition between the high- and low-voltage transformation areas of the target power distribution cabinet, and analyze the quality of the insulating partition between the high- and low-voltage transformation areas of the target power distribution cabinet.

[0014] S4. Transformer operation quality analysis: Test each transformer of the target power distribution cabinet to obtain the electromagnetic leakage influence data of the target power distribution cabinet. The electromagnetic leakage influence data includes iron core quality data and winding quality data. The iron core quality data specifically includes the iron core volume, iron core magnetic permeability, and monomer spacing. The winding quality data specifically includes the number of winding turns and the offset distance of the winding geometric center, and analyze the operation quality of the transformer of the target power distribution cabinet.

[0015] S5. Abnormal identification of high - low voltage transformation area: Analyze the influence index between the high - low voltage transformation areas of the target power distribution cabinet based on the evaluation of the electrical component spacing, line layout spacing, quality of insulation partitions, and operation quality of transformers between the high - low voltage transformation areas of the target power distribution cabinet. Then, determine whether there is an abnormality in the high - low voltage transformation area of the target power distribution cabinet. If there is an abnormality, further identify the specific abnormal direction.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) When analyzing the influence index between the high - low voltage transformation areas of the target power distribution cabinet, the present invention analyzes from aspects such as the spacing between the high - low voltage transformation areas of the target power distribution cabinet, the quality of insulation partitions, and the operation quality of transformers. This analysis method can comprehensively and accurately evaluate the influence between the high - low voltage transformation areas of the target power distribution cabinet, providing a strong guarantee for the safe operation of the power distribution cabinet.

[0017] (2) When analyzing the evaluation of the spacing between the high - low voltage transformation areas of the target power distribution cabinet, the present invention comprehensively considers the influence of the electrical component spacing and the line layout spacing. This analysis method can ensure that different electrical components will not interfere with each other due to too small a spacing during operation, avoiding problems such as malfunction, performance degradation, or even damage that may be caused by interference, and guaranteeing the normal operation and service life of electrical components. On the other hand, considering the line layout spacing can effectively prevent potential safety hazards such as short - circuit and electric leakage due to unreasonable line spacing, ensuring the stability and reliability of power transmission. This comprehensive analysis method comprehensively evaluates the spacing situation between the high - low voltage transformation areas, providing a more scientific and accurate basis for the safe and stable operation of the target power distribution cabinet.

[0018] (3) When the present invention determines that there is an abnormality, it further identifies the abnormal direction. This analysis method can quickly determine the specific source of the problem after discovering the abnormality, avoiding the waste of time and manpower caused by blind troubleshooting. Whether it is a circuit fault, equipment damage, or other specific problems, it can be accurately located, making the repair and maintenance work more targeted and efficient. It greatly improves the efficiency of troubleshooting, can handle problems promptly and accurately in case of emergencies, prevent small problems from evolving into major failures, strongly guarantee the safe and stable operation of the target power distribution cabinet, and at the same time improve the reliability and stability of the entire power system. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1This is a schematic diagram of the connections between the modules of the system of the present invention.

[0021] Figure 2 This is a schematic diagram of the implementation steps of the method of the present invention. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 As shown, the first aspect of the present invention provides a combined high and low voltage power distribution cabinet comprehensive protection system, including an electrical component spacing analysis module, a line layout spacing analysis module, an insulating partition quality analysis module, a transformer operation quality analysis module, and a high and low voltage transformation area abnormality identification module, wherein the electrical component spacing analysis module, the line layout spacing analysis module, the insulating partition quality analysis module, and the transformer operation quality analysis module are all connected to the high and low voltage transformation area abnormality identification module.

[0024] The electrical component spacing analysis module is used to collect the electrical component distribution image of the target power distribution cabinet by using a high-definition camera, and analyze the evaluation of the electrical component spacing between the high and low voltage transformation areas of the target power distribution cabinet.

[0025] It should be noted that the influence of the electrical component spacing between the high and low voltage transformation areas of the target power distribution cabinet on the operation of the target power distribution cabinet: a reasonable electrical component spacing can prevent different components from interfering with each other during operation. If the spacing is too small, it may lead to an increase in electromagnetic interference, resulting in a decline in the performance of the components, problems such as malfunction and signal distortion, affecting the normal control and monitoring functions of the power distribution cabinet. At the same time, too small a spacing may also increase the risk of short circuit between components, triggering electrical accidents and threatening the safety of equipment and personnel. By appropriately increasing the spacing, the operation stability and reliability of the power distribution cabinet can be improved, the normal service life of the electrical components can be guaranteed, and the target power distribution cabinet can operate safely and efficiently during the high and low voltage transformation process.

[0026] In a preferred embodiment of the present invention, to analyze the evaluation of the electrical component spacing between the high and low voltage transformation areas of the target power distribution cabinet, an electrical component spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet needs to be constructed, and its specific analysis method is as follows: extract the electrical component distribution image of the target power distribution cabinet collected by using a high-definition camera, and then use image processing software to obtain the center point positions of each electrical component, denoted as the monitoring positions of each electrical component, and obtain the distances from the monitoring positions of each electrical component to the insulating partition between the high and low voltage transformation areas of the target power distribution cabinet, denoted as the monitoring distances of each electrical component.

[0027] Classify each electrical component according to its location to obtain the electrical components in the high-voltage area and the electrical components in the low-voltage area of the target distribution cabinet. Then, calculate the average value of the monitoring distances of the electrical components in the high-voltage area of the target distribution cabinet to obtain the monitoring distance of the high-voltage area of the target distribution cabinet, denoted as , calculate the average value of the monitoring distances of the electrical components in the low-voltage area of the target distribution cabinet to obtain the monitoring distance of the low-voltage area of the target distribution cabinet, denoted as .

[0028] Use the formula to analyze and obtain the electrical component spacing evaluation index between the high- and low-voltage transformation areas of the target distribution cabinet , where represents the preset reference monitoring distance of the high-voltage area, represents the preset reference monitoring distance of the low-voltage area, represents the allowable difference between the preset monitoring distance of the high-voltage area and the reference monitoring distance of the high-voltage area, represents the allowable difference between the preset monitoring distance of the low-voltage area and the reference monitoring distance of the low-voltage area.

[0029] It should be noted that the setting basis of the preset reference monitoring distance of the high-voltage area and the reference monitoring distance of the low-voltage area: The insulation strength of the insulating material used in the high- and low-voltage distribution cabinets determines the setting of the monitoring distance. If the performance of the insulating material is good and it can withstand a higher electric field strength, then the monitoring distance can be relatively small; otherwise, the monitoring distance needs to be increased to ensure safety.

[0030] The line layout spacing analysis module is used to collect the line layout distribution image of the target distribution cabinet by using a high-definition camera and analyze the evaluation of the line layout spacing between the high- and low-voltage transformation areas of the target distribution cabinet.

[0031] It should be noted that the influence of the line layout spacing between the high- and low-voltage transformation areas of the target distribution cabinet on the operation quality of the target distribution cabinet: If the line layout spacing is too small, it is easy to cause an increase in electromagnetic interference between the lines. Different lines in the high- and low-voltage areas will generate electromagnetic fields during operation. Insufficient spacing will cause these electromagnetic fields to interact with each other, which may cause problems such as signal distortion and misoperation, seriously affecting the control accuracy and stability of the distribution cabinet. A reasonable line layout spacing can effectively improve the operation quality of the target distribution cabinet. An appropriate spacing can reduce electromagnetic interference and ensure the accurate transmission of signals and the normal operation of equipment.

[0032] In a preferred embodiment of the present invention, to evaluate the line layout spacing between the high and low voltage transformation areas of the target power distribution cabinet, it is necessary to construct an evaluation index for the line layout spacing between the high and low voltage transformation areas of the target power distribution cabinet. The specific analysis method is as follows: Extract the line layout distribution image of the target power distribution cabinet collected by a high-definition camera, and use image processing software to obtain each monitoring line parallel to the insulating partition between the high and low voltage transformation areas of the target power distribution cabinet, obtain the monitoring line distance between each monitoring line and the insulating partition, and obtain the length of each monitoring line.

[0033] It should be noted that when analyzing the line layout spacing between the high and low voltage transformation areas of the target power distribution cabinet, the reason for choosing the line parallel to the insulating partition between the high and low voltage transformation areas of the target power distribution cabinet for analysis: The insulating partition plays a key isolation role between the high and low voltage areas, preventing electrical accidents such as electric leakage and short circuit between the high and low voltage areas. The distance relationship between the line parallel to the insulating partition and the insulating partition is the closest, and analyzing it can directly evaluate whether the spacing between the line and the key isolation component is reasonable. If the spacing between these lines and the insulating partition is too small, it may increase the electric field stress on the insulating partition and reduce its insulation performance, thereby increasing the risk of electrical accidents. On the contrary, a reasonable spacing can ensure that the insulating partition fully plays its isolation role and improve the safety of the power distribution cabinet.

[0034] Classify each monitoring line according to its location to obtain the monitoring lines in each high voltage area and the monitoring lines in each low voltage area of the target power distribution cabinet. Calculate the average value of the monitoring line distances corresponding to each high voltage area monitoring line to obtain the high voltage area monitoring line distance, denoted as , and calculate the sum of the monitoring line lengths corresponding to each high voltage area monitoring line to obtain the high voltage area monitoring line length, denoted as .

[0035] Similarly, the low voltage area monitoring line distance and the low voltage area monitoring line length can be obtained, denoted as , .

[0036] It should be supplemented that the specific analysis method for the low voltage area monitoring line distance and the low voltage area monitoring line length: Calculate the average value of the monitoring line distances corresponding to each low voltage area monitoring line to obtain the low voltage area monitoring line distance, and calculate the sum of the monitoring line lengths corresponding to each low voltage area monitoring line to obtain the low voltage area monitoring line length.

[0037] Use the formula to analyze and obtain the evaluation index for the line layout spacing between the high and low voltage transformation areas of the target power distribution cabinet , where represents the preset reference high voltage area monitoring line distance, represents the preset reference low voltage area monitoring line distance, Indicates the length of the insulating partition between the high-voltage and low-voltage areas of the target power distribution cabinet.

[0038] It should be noted that the basis for setting the reference high-voltage area monitoring line distance and the reference low-voltage area monitoring line distance is as follows: 1. Different voltage levels have different requirements for the monitoring line distance. Generally speaking, the higher the voltage, the greater the required monitoring distance. This is because a higher voltage generates a stronger electric field, and a larger distance is needed to prevent the electric field from causing harm to the surrounding environment and personnel. For example, the monitoring line distance in the high-voltage area is usually much larger than that in the low-voltage area to adapt to the safety risks brought by high voltage. 2. The performance of the insulating material used in the target power distribution cabinet also affects the setting of the monitoring line distance. If the insulating material has a high insulation strength and can withstand a large electric field stress, the monitoring distance can be relatively small. On the contrary, if the performance of the insulating material is poor, the monitoring distance needs to be increased to ensure safety. In addition, the aging, wear, etc. of the insulating material will also affect its insulation performance, and regular inspections and maintenance are required to ensure the rationality of the monitoring distance.

[0039] The insulating partition quality analysis module is used to collect the apparent quality image of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet by using a high-definition camera, and analyze the quality of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet.

[0040] In a preferred embodiment of the present invention, to analyze the quality of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, it is necessary to construct an insulating partition quality index between the high-voltage and low-voltage transformation areas of the target power distribution cabinet. The specific analysis method is as follows: Extract the apparent quality image of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet collected by the high-definition camera, and then use image processing software to locate each damaged position of the insulating partition, obtain the damaged area of each damaged position, and then perform cumulative calculation to obtain the damaged area of the insulating partition, and obtain the area of the insulating partition.

[0041] Perform a difference calculation between the area of the insulating partition corresponding to the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet and the damaged area, and then perform a ratio calculation with the area of the insulating partition to obtain the insulating partition quality index between the high-voltage and low-voltage transformation areas of the target power distribution cabinet.

[0042] The transformer operation quality analysis module is used to test each transformer of the target power distribution cabinet to obtain the electromagnetic leakage impact data of the target power distribution cabinet. The electromagnetic leakage impact data includes iron core quality data and winding quality data. Among them, the iron core quality data specifically includes the iron core volume, iron core magnetic permeability, and monomer spacing, and the winding quality data specifically includes the number of winding turns and the winding geometric center offset distance, and analyze the transformer operation quality of the target power distribution cabinet.

[0043] It should be noted that the reasons for selecting the iron core volume, iron core permeability, and monomer spacing as the iron core quality data are as follows: 1. To a certain extent, the iron core volume determines the magnitude of the magnetic flux it can carry. A larger iron core volume can usually accommodate more magnetic field lines, thereby providing a stronger magnetic field in electromagnetic devices and directly affecting the performance of the devices. 2. The iron core permeability is an important parameter for measuring the magnetic conduction ability of the iron core. An iron core with high permeability can more effectively concentrate and conduct the magnetic field, reducing magnetic leakage and energy loss. In electromagnetic devices such as transformers and inductors, the iron core permeability directly determines the performance indicators of the devices, such as efficiency and power factor. 3. In some electromagnetic devices composed of multiple iron core monomers, the reasonable setting of the monomer spacing can prevent the iron core from occurring magnetic saturation. If the monomer spacing is too small, the magnetic fields between adjacent iron core monomers interfere with each other, easily leading to magnetic saturation and causing a sharp decline in the magnetic conduction performance of the iron core. By controlling the monomer spacing, the magnetic field distribution can be optimized, and the working efficiency and stability of the iron core can be improved.

[0044] It should be added that the iron core volume can be obtained by using a three-dimensional scanning device, the iron core permeability can be obtained by using a permeability detection device, and the monomer spacing is obtained by using a three-dimensional scanning device to obtain the distance between the center points of adjacent iron core monomers and then performing an average calculation.

[0045] It should be noted that the reasons for selecting the number of winding turns and the offset distance of the geometric center of the winding as the winding quality data are as follows: 1. The number of winding turns will change the intensity and distribution of the magnetic field. An appropriate number of turns can generate the required magnetic field intensity to ensure that the device operates within the normal working range. At the same time, the change in the number of turns may also cause the non-uniformity of the magnetic field, thereby affecting the efficiency and stability of the device. By monitoring the number of winding turns, the abnormality of the magnetic field distribution can be detected in a timely manner and corresponding adjustment measures can be taken. 2. The offset distance of the geometric center of the winding will affect the symmetry of the magnetic field. If the geometric center of the winding is offset, it will cause the non-uniform distribution of the magnetic field, which may lead to problems such as local overheating and electromagnetic force imbalance, thereby affecting the performance and service life of the device. By monitoring the offset distance of the geometric center of the winding, this asymmetry can be detected and corrected in a timely manner to ensure the uniformity and stability of the magnetic field.

[0046] It should be added that the method for obtaining the offset distance of the geometric center of the winding: Use a three-dimensional scanning device to obtain the geometric centers of the corresponding high-voltage windings and low-voltage windings of each winding, obtain the distance between the collective center of the corresponding high-voltage windings and the geometric center of the low-voltage windings of each winding, and then perform an average calculation to obtain the offset distance of the geometric center of the winding.

[0047] In a preferred embodiment of the present invention, to analyze the operation quality of the transformer in the target distribution cabinet, it is necessary to construct an operation quality index of the transformer in the target distribution cabinet. The specific analysis method is as follows: Extract the iron core volume, iron core permeability, and monomer spacing of the target distribution cabinet, and denote them as , , respectively, and then analyze the iron core quality index of the target distribution cabinet.

[0048] Extract the number of turns of the winding and the offset distance of the geometric center of the winding of the target distribution cabinet, and denote them as , respectively, and then analyze the winding quality index of the target distribution cabinet.

[0049] Sum the iron core quality index and the winding quality index of the target distribution cabinet according to the weights to obtain the operation quality index of the transformer in the target distribution cabinet.

[0050] It should be noted that the basis for setting the weights of the core quality index and the winding quality index of the target distribution cabinet: The iron core quality and the winding quality have different degrees of influence on the performance of the target distribution cabinet. If the iron core plays a key role in the function realization of the distribution cabinet, for example, in a transformer, the magnetic conductivity of the iron core directly determines the transmission efficiency and stability of electric energy, then the iron core quality index may be given a higher weight. On the contrary, if the winding has a more significant impact on the performance of the distribution cabinet, such as in determining the accuracy of the output voltage, load capacity, etc., then the weight of the winding quality index may be increased accordingly.

[0051] Exemplarily, the weights of the core quality index and the winding quality index are .

[0052] In a preferred embodiment of the present invention, the specific method for analyzing the iron core quality index of the target distribution cabinet is as follows: Extract the iron core volume , the iron core permeability and the monomer spacing of the target distribution cabinet, and use the formula to analyze and obtain the iron core quality index of the target distribution cabinet, where , , respectively represent the preset reference iron core volume, reference iron core permeability, and reference monomer spacing, , , respectively represent the preset allowable iron core volume difference, allowable reference iron core permeability difference, and allowable reference monomer spacing difference.

[0053] It should be added that the specific method for analyzing the winding quality index of the target distribution cabinet: extract the number of turns of the winding of the target distribution cabinet and the offset distance of the geometric center of the winding , and use the formula to analyze and obtain the winding quality index of the target distribution cabinet , where 、 respectively represent the preset reference number of turns of the winding and the preset offset distance of the geometric center of the winding, 、 respectively represent the preset allowable difference in the number of turns of the winding and the preset allowable difference in the offset distance of the geometric center of the winding.

[0054] The high and low voltage transformation area anomaly identification module is used to analyze the influence index between the high and low voltage transformation areas of the target distribution cabinet based on the evaluation of the electrical component spacing, the evaluation of the line layout spacing, the quality of the insulation partition, and the operation quality of the transformer between the high and low voltage transformation areas of the target distribution cabinet, and then judge whether there is an anomaly in the high and low voltage transformation areas of the target distribution cabinet. If so, further identify the specific anomaly direction.

[0055] In a preferred embodiment of the present invention, the specific analysis method for analyzing the influence index between the high and low voltage transformation areas of the target distribution cabinet is as follows: extract the evaluation index of the electrical component spacing and the evaluation index of the line layout spacing between the high and low voltage transformation areas of the target distribution cabinet, and then perform a weighted summation calculation to obtain the evaluation index of the spacing between the high and low voltage transformation areas of the target distribution cabinet.

[0056] It should be noted that the setting basis for the weights of the evaluation index of the electrical component spacing and the evaluation index of the line layout spacing between the high and low voltage transformation areas of the target distribution cabinet: both the electrical component spacing and the line layout spacing will affect the performance stability of the target distribution cabinet. For example, inappropriate component spacing may affect the heat dissipation of the components, resulting in an increase in component temperature, a decline in performance or even damage, thereby affecting the overall performance of the distribution cabinet. Unreasonable line layout spacing may affect the signal transmission quality, resulting in problems such as distorted control signals and inaccurate monitoring data. By analyzing which spacing problem has a more significant impact on the performance stability of the equipment, the weights of the corresponding evaluation indexes are determined.

[0057] Exemplarily, the weights of the evaluation index of the electrical component spacing and the evaluation index of the line layout spacing between the high and low voltage transformation areas of the target distribution cabinet are .

[0058] It should be noted that when analyzing the spacing evaluation between the high and low voltage transformation areas of the target power distribution cabinet, the present invention comprehensively considers the influence of the spacing between electrical components and the layout spacing of lines. This analysis method can ensure that different electrical components will not interfere with each other due to too small a spacing during operation, avoiding problems such as malfunction, performance degradation, or even damage that may be caused by interference, and ensuring the normal operation and service life of electrical components. On the other hand, considering the layout spacing of lines can effectively prevent potential safety hazards such as short circuits and electric leakage between lines, ensuring the stability and reliability of power transmission. This comprehensive analysis method comprehensively evaluates the spacing between the high and low voltage transformation areas, providing a more scientific and accurate basis for the safe and stable operation of the target power distribution cabinet.

[0059] Using the formula The influence index between the high and low voltage transformation areas of the target power distribution cabinet is obtained through analysis , where represents the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet.

[0060] It should be noted that when analyzing the influence index between the high and low voltage transformation areas of the target power distribution cabinet, the present invention analyzes from aspects such as the spacing between the high and low voltage transformation areas of the target power distribution cabinet, the quality of the insulating partition, and the operation quality of the transformer. This analysis method can comprehensively and accurately evaluate the influence between the high and low voltage transformation areas of the target power distribution cabinet, providing a strong guarantee for the safe operation of the power distribution cabinet.

[0061] In a preferred embodiment of the present invention, the specific analysis method for determining whether there is an abnormality in the high and low voltage transformation areas of the target power distribution cabinet is as follows: Extract the influence index between the high and low voltage transformation areas of the target power distribution cabinet, and then compare it with the pre-set influence index threshold between the high and low voltage transformation areas. If the influence index between the high and low voltage transformation areas of the target power distribution cabinet is greater than the influence index threshold between the high and low voltage transformation areas, it is determined that there is an abnormality in the high and low voltage transformation areas of the target power distribution cabinet; otherwise, it is determined that there is no abnormality in the high and low voltage transformation areas of the target power distribution cabinet.

[0062] In a preferred embodiment of the present invention, the specific method for identifying the specific abnormal direction is as follows: Extract the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet, the insulating partition quality index between the high and low voltage transformation areas of the target power distribution cabinet, and the transformer operation quality index of the target power distribution cabinet, and then compare them with the pre-set spacing evaluation index threshold, insulating partition quality index threshold, and transformer operation quality index threshold respectively.

[0063] If the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet is less than the spacing evaluation index threshold, the specific abnormal direction is identified as a spacing abnormality.

[0064] If the quality index of the insulating partition between the high- and low-voltage transformation areas of the target power distribution cabinet is less than the threshold value of the insulating partition quality index, identify the specific abnormal indication as the abnormal quality of the insulating partition.

[0065] If the operation quality index of the transformer in the target power distribution cabinet is less than the threshold value of the transformer operation quality index, identify the specific abnormal indication as the abnormal operation quality of the transformer.

[0066] It should be noted that the specific abnormal indication can be one or more of the abnormal spacing, abnormal quality of the insulating partition, and abnormal operation quality of the transformer.

[0067] It should be noted that when the present invention determines that there is an abnormality, it further identifies the abnormal indication. This analysis method can quickly determine the specific source of the problem after discovering the abnormality, avoiding the waste of time and manpower caused by blind troubleshooting. Whether it is a circuit fault, equipment damage, or other specific problems, it can be accurately located, making the maintenance and repair work more targeted and efficient. It greatly improves the efficiency of fault troubleshooting, can handle problems in a timely and accurate manner in case of emergencies, prevent small problems from evolving into major faults, effectively guarantee the safe and stable operation of the target power distribution cabinet, and at the same time improve the reliability and stability of the entire power system.

[0068] Please refer to Figure 2 As shown, the first aspect of the present invention provides a comprehensive protection method for a combined high- and low-voltage power distribution cabinet, including: S1. Analysis of the electrical component spacing: Use a high-definition camera to collect the distribution image of the electrical components of the target power distribution cabinet, and analyze the evaluation of the electrical component spacing between the high- and low-voltage transformation areas of the target power distribution cabinet.

[0069] S2. Analysis of the line layout spacing: Use a high-definition camera to collect the distribution image of the line layout of the target power distribution cabinet, and analyze the evaluation of the line layout spacing between the high- and low-voltage transformation areas of the target power distribution cabinet.

[0070] S3. Analysis of the insulating partition quality: Use a high-definition camera to collect the apparent quality image of the insulating partition between the high- and low-voltage transformation areas of the target power distribution cabinet, and analyze the quality of the insulating partition between the high- and low-voltage transformation areas of the target power distribution cabinet.

[0071] S4. Analysis of the transformer operation quality: Test each transformer of the target power distribution cabinet to obtain the electromagnetic leakage influence data of the target power distribution cabinet. The electromagnetic leakage influence data includes iron core quality data and winding quality data. The iron core quality data specifically includes the iron core volume, iron core magnetic permeability, and monomer spacing, and the winding quality data specifically includes the number of winding turns and the offset distance of the winding geometric center, and analyze the operation quality of the transformer in the target power distribution cabinet.

[0072] S5. Abnormal identification of high and low voltage transformation areas: Based on the evaluation of the electrical component spacing, line layout spacing, insulating partition quality, and transformer operation quality between the high and low voltage transformation areas of the target power distribution cabinet, analyze the influence index between the high and low voltage transformation areas of the target power distribution cabinet, and then determine whether there is an abnormality in the high and low voltage transformation areas of the target power distribution cabinet. If so, further identify the specific abnormal direction.

[0073] The above content is only an example and explanation of the concept of the present invention. Those skilled in the art of this technology can make various modifications, supplements, or use similar methods to replace the described specific embodiments, as long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they should all belong to the protection scope of the present invention.

Claims

1. A combined high and low voltage power distribution cabinet comprehensive protection system, characterized in that, Including: An electrical component spacing analysis module, which is used to collect the distribution image of electrical components in the target power distribution cabinet by using a high-definition camera, and analyze the evaluation of the electrical component spacing between the high-voltage and low-voltage transformation areas of the target power distribution cabinet; To analyze the evaluation of the electrical component spacing between the high and low voltage transformation areas of the target distribution cabinet, it is necessary to construct an evaluation index for the electrical component spacing between the high and low voltage transformation areas of the target distribution cabinet , and its specific analysis method is as follows: Obtain the distance from the center point position of the electrical components in the target power distribution cabinet to the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, and record it as the monitoring distance of each electrical component; Divide each electrical component into electrical components in each high-voltage area and electrical components in each low-voltage area, and calculate the average value of the monitoring distances of the electrical components in each high-voltage area and each low-voltage area of the target power distribution cabinet to obtain the monitoring distance of the high-voltage area of the target power distribution cabinet , and the monitoring distance of the low-voltage area ; Using the formula Analysis results in , where represents the pre-set monitoring distance of the reference high-pressure area, represents the pre-set monitoring distance of the reference low-pressure area, represents the permitted difference between the pre-set monitoring distance of the high-pressure area and the reference high-pressure area monitoring distance, represents the permitted difference between the pre-set monitoring distance of the low-pressure area and the reference low-pressure area monitoring distance; A line layout spacing analysis module, which is used to collect the line layout distribution image of the target power distribution cabinet by using a high-definition camera, and analyze the evaluation of the line layout spacing between the high-voltage and low-voltage transformation areas of the target power distribution cabinet; An insulating partition quality analysis module, which is used to collect the apparent quality image of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet by using a high-definition camera, and analyze the quality of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet; A transformer operation quality analysis module, which is used to test each transformer of the target power distribution cabinet to obtain the electromagnetic leakage impact data of the target power distribution cabinet. The electromagnetic leakage impact data includes iron core quality data and winding quality data. The iron core quality data specifically includes iron core volume, iron core magnetic permeability and monomer spacing, and the winding quality data specifically includes the number of winding turns and the offset distance of the geometric center of the winding, and analyze the operation quality of the transformer in the target power distribution cabinet; A high-voltage and low-voltage transformation area anomaly identification module, which is used to analyze the impact index between the high-voltage and low-voltage transformation areas of the target power distribution cabinet based on the evaluation of the electrical component spacing, the evaluation of the line layout spacing, the quality of the insulating partition and the operation quality of the transformer between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, and then judge whether there is an anomaly in the high-voltage and low-voltage transformation areas of the target power distribution cabinet. If so, further identify the specific anomaly direction.

2. The integrated protection system for a combined high and low voltage power distribution cabinet according to claim 1, characterized in that: The specific analysis methods of the monitoring distances of the high-voltage area and the low-voltage area of the target power distribution cabinet are as follows: Extract the distribution image of the electrical components in the target power distribution cabinet collected by the high-definition camera, and then use image processing software to obtain the center point position of each electrical component, which is recorded as the monitoring position of each electrical component, and obtain the distance from the monitoring position of each electrical component to the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, which is recorded as the monitoring distance of each electrical component; Classify each electrical component according to its location to obtain the electrical components in the high-voltage area and the electrical components in the low-voltage area of the target power distribution cabinet. Then, calculate the average value of the monitoring distances of the electrical components in the high-voltage area of the target power distribution cabinet to obtain the monitoring distance in the high-voltage area of the target power distribution cabinet, denoted as , calculate the average value of the monitoring distances of the electrical components in the low-voltage area of the target power distribution cabinet to obtain the monitoring distance in the low-voltage area of the target power distribution cabinet, denoted as .

3. A combined high and low voltage power distribution cabinet comprehensive protection system according to claim 2, characterized in that: To analyze the evaluation of the line layout spacing between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, it is necessary to construct an evaluation index for the line layout spacing between the high-voltage and low-voltage transformation areas of the target power distribution cabinet. The specific analysis method is as follows: Extract the line layout distribution image of the target power distribution cabinet collected by the high-definition camera, use image processing software to obtain each monitoring line parallel to the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, obtain the monitoring line distance between each monitoring line and the insulating partition, and obtain the length of each monitoring line; Classify each monitoring line according to its location to obtain the monitoring lines in the high-voltage areas and the monitoring lines in the low-voltage areas of the target power distribution cabinet. Calculate the average value of the monitoring line distances corresponding to each high-voltage area monitoring line to obtain the high-voltage area monitoring line distance, denoted as , and accumulate the monitoring line lengths corresponding to each high-voltage area monitoring line to obtain the high-voltage area monitoring line length, denoted as ; Similarly, the distance and length of the low-voltage area monitoring line can be obtained, denoted as and ; Using the formula Analyze and obtain the line layout spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet , where represents the pre-set reference high voltage area monitoring line distance, represents the pre-set reference low voltage area monitoring line distance, represents the length of the insulating partition between the high and low voltage areas of the target power distribution cabinet.

4. The integrated protection system for a combined high- and low-voltage power distribution cabinet according to claim 3, wherein: To analyze the quality of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet, it is necessary to construct an insulating partition quality index between the high-voltage and low-voltage transformation areas of the target power distribution cabinet. The specific analysis method is as follows: Extract the apparent quality image of the insulating partition between the high-voltage and low-voltage transformation areas of the target power distribution cabinet collected by the high-definition camera, and then use image processing software to locate each damaged position of the insulating partition, obtain the damaged area of each damaged position, and then perform cumulative calculation to obtain the damaged area of the insulating partition, and obtain the area of the insulating partition; Calculate the difference between the insulation partition area corresponding to the insulation partition between the high and low voltage transformation areas of the target power distribution cabinet and the damaged area to obtain the undamaged area, and then calculate the ratio with the area of the insulation partition to obtain the insulation partition quality index between the high and low voltage transformation areas of the target power distribution cabinet.

5. The integrated protection system for a combined high- and low-voltage power distribution cabinet according to claim 4, wherein: To analyze the operation quality of the transformer in the target power distribution cabinet, it is necessary to construct the operation quality index of the transformer in the target power distribution cabinet. The specific analysis method is as follows: Extract the core volume, core magnetic permeability, and monomer spacing of the target power distribution cabinet, denoted as , , respectively, and then analyze the core quality index of the target power distribution cabinet ; Extract the number of turns of the winding and the offset distance of the geometric center of the winding of the target power distribution cabinet, denoted as , , and then analyze the winding quality index ; Sum the iron core quality index and winding quality index of the target power distribution cabinet according to the weight to obtain the operation quality index of the transformer in the target power distribution cabinet.

6. The integrated protection system for a combined high and low voltage power distribution cabinet according to claim 5, characterized in that: The specific method for analyzing the iron core quality index of the target power distribution cabinet is as follows: Extract the core volume of the target power distribution cabinet , core permeability and monomer spacing , and use the formula to analyze and obtain the core mass index of the target power distribution cabinet , where , , respectively represent the preset reference core volume, reference core permeability, and reference monomer spacing, , , respectively represent the preset allowable core volume difference, allowable reference core permeability difference, and allowable reference monomer spacing difference.

7. The integrated protection system for a combined high- and low-voltage power distribution cabinet according to claim 5, wherein: The specific analysis method for analyzing the influence index between the high and low voltage transformation areas of the target power distribution cabinet is as follows: Extract the electrical component spacing evaluation index and line layout spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet, and then sum them according to the weight to obtain the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet; Using the formula Analyze to obtain the influence index between the high and low voltage transformation areas of the target power distribution cabinet , where represents the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet.

8. The integrated protection system for a combined high- and low-voltage power distribution cabinet according to claim 7, characterized in that: The specific analysis method for judging whether there is an abnormality in the high and low voltage transformation areas of the target power distribution cabinet is as follows: Extract the influence index between the high and low voltage transformation areas of the target power distribution cabinet, and then compare it with the pre-set influence index threshold between the high and low voltage transformation areas. If the influence index between the high and low voltage transformation areas of the target power distribution cabinet is greater than the influence index threshold between the high and low voltage transformation areas, it is judged that there is an abnormality in the high and low voltage transformation areas of the target power distribution cabinet. Otherwise, it is judged that there is no abnormality in the high and low voltage transformation areas of the target power distribution cabinet.

9. The integrated protection system for a combined high- and low-voltage power distribution cabinet according to claim 7, characterized in that: The specific method for identifying the specific abnormal direction is as follows: Extract the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet, the insulation partition quality index between the high and low voltage transformation areas of the target power distribution cabinet, and the operation quality index of the transformer in the target power distribution cabinet, and then compare them with the pre-set spacing evaluation index threshold, insulation partition quality index threshold, and transformer operation quality index threshold respectively; If the spacing evaluation index between the high and low voltage transformation areas of the target power distribution cabinet is less than the spacing evaluation index threshold, identify the specific abnormal direction as spacing abnormality; If the insulation partition quality index between the high and low voltage transformation areas of the target power distribution cabinet is less than the insulation partition quality index threshold, identify the specific abnormal direction as insulation partition quality abnormality; If the operation quality index of the transformer in the target power distribution cabinet is less than the transformer operation quality index threshold, identify the specific abnormal direction as transformer operation quality abnormality.

10. A comprehensive protection method for a combined high- and low-voltage power distribution cabinet, characterized in that: Including: S1. Electrical component spacing analysis: Use a high-definition camera to collect the distribution image of electrical components in the target power distribution cabinet, and analyze the evaluation of the electrical component spacing between the high and low voltage transformation areas of the target power distribution cabinet; To analyze the evaluation of the electrical component spacing between the high and low voltage transformation areas of the target distribution cabinet, it is necessary to construct an evaluation index for the electrical component spacing between the high and low voltage transformation areas of the target distribution cabinet , and its specific analysis method is as follows: Obtain the distance from the center point position of the electrical components in the target power distribution cabinet to the insulation partition between the high and low voltage transformation areas of the target power distribution cabinet, and record it as the monitoring distance of each electrical component; Divide each electrical component into electrical components in each high-voltage area and electrical components in each low-voltage area, and calculate the average of the monitoring distances of the electrical components in each high-voltage area and each low-voltage area of the target power distribution cabinet to obtain the monitoring distance in the high-voltage area of the target power distribution cabinet and the monitoring distance in the low-voltage area ; Using the formula Analysis yields , where represents the pre-set monitoring distance of the reference high-voltage area, represents the pre-set monitoring distance of the reference low-voltage area, represents the permitted difference between the pre-set monitoring distance of the high-voltage area and the reference monitoring distance of the high-voltage area, represents the permitted difference between the pre-set monitoring distance of the low-voltage area and the reference monitoring distance of the low-voltage area; S2. Line layout spacing analysis: Use a high-definition camera to collect the line layout distribution image of the target power distribution cabinet, and analyze the evaluation of the line layout spacing between the high and low voltage transformation areas of the target power distribution cabinet; S3. Insulation partition quality analysis: Use a high-definition camera to collect the apparent quality image of the insulation partition between the high and low voltage transformation areas of the target power distribution cabinet, and analyze the quality of the insulation partition between the high and low voltage transformation areas of the target power distribution cabinet; S4. Transformer operation quality analysis: Test each transformer of the target power distribution cabinet to obtain the electromagnetic leakage impact data of the target power distribution cabinet. The electromagnetic leakage impact data includes core quality data and winding quality data. The core quality data specifically includes core volume, core magnetic permeability, and monomer spacing. The winding quality data specifically includes the number of winding turns and the offset distance of the winding geometric center. Analyze the operation quality of the transformers in the target power distribution cabinet. S5. Abnormality identification in high and low voltage transformation areas: Based on the evaluation of the electrical component spacing, line layout spacing, insulation partition quality, and transformer operation quality between the high and low voltage transformation areas of the target power distribution cabinet, analyze the influence index between the high and low voltage transformation areas of the target power distribution cabinet, and then determine whether there is an abnormality in the high and low voltage transformation areas of the target power distribution cabinet. If so, further identify the specific abnormal direction.

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