Panoramic sensing method and system for operation state of high-voltage equipment of power transmission line

Abstract

The invention discloses a panoramic sensing method and system for the operation state of high-voltage equipment of a power transmission line. The method comprises the following steps: acquiring first monitoring data, first detection data and first image data of target equipment; performing degradation analysis on the first monitoring data, the first detection data and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount and a third degradation amount; a comprehensive evaluation model is established, and the operation state of the target equipment is obtained based on the first degradation amount, the second degradation amount and the third degradation amount; and completing state sensing according to the target equipment operation state. The method and the system can effectively reduce the power failure risk caused by the equipment fault, and improve the operation reliability of the power transmission line. And a non-contact monitoring technology is adopted, so that the requirement on the insulation performance of equipment is reduced, and the maintenance cost and the operation risk are reduced. Through the multi-parameter fusion technology, the real-time monitoring of the equipment state is realized, and the comprehensiveness and accuracy of monitoring and evaluation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of green intelligent electrical equipment, and in particular to a method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line. Background Art

[0002] In today's world, countries have different stages of economic development and resource endowments. How to coordinate the safe and stable supply of energy and the green and low-carbon transformation is both a common goal and a common problem. The new power system has the technical characteristics of gradually evolving from automation to digitalization and intelligence. The digital grid is a new type of integrated social public facility built with the empowerment of a new generation of digital technology. On the basis of improving the safe, reliable, green and efficient operation of the power system, it leads the reshaping of the production, management and operation methods of power grid companies, promotes the integration of the energy industry value chain, supports the construction of an energy ecosystem, and serves the safe and stable supply of energy and the green and low-carbon transformation.

[0003] The digital power grid technology system is mainly composed of physical systems, information systems, and business systems. The digital power grid is based on the physical power grid and makes full use of digital technology. It mainly includes a physical system composed of power grid equipment, a business system that serves the operation of the physical system, and an information system that supports the operation of the physical system and the business system. Among them, the business system mainly covers the entire process of production and operation activities of power grid enterprises. In particular, the application of new generation digital technologies to power grid operation and maintenance will improve the efficiency and quality of transmission line operation and maintenance. For example, the use of the Internet of Things and edge computing technologies can deploy intelligent sensing, intelligent measurement, and intelligent control equipment for conductors, lightning arresters, insulators, etc. to improve the monitoring effect of transmission lines and the panoramic perception of transmission line faults and the level of operation trend analysis.

[0004] Transmission lines are widely distributed, with complex channels, making operation and maintenance extremely difficult; and the operating status is easily affected by weather, environment, and natural disasters. The deterioration of the operating status of high-voltage equipment often occurs during a development period. For example, by monitoring the numerical evolution trend of electrical performance and mechanical performance status, the operating status of high-voltage equipment on the transmission line can be fully perceived, and potential faults can be warned. In the past, the operating status of electrical equipment, which was mainly based on a single sensor, had the disadvantages of being local, one-sided, and hysteretic in monitoring and evaluation, and the contact measurement method had high requirements for insulation performance. There is an urgent need for scientific research and application of state perception data and multi-parameter fusion technology such as multi-sensor monitoring and testing to achieve full-view perception of the operating status. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above existing problems, the present invention is proposed.

[0007] Therefore, the present invention provides a method and system for panoramic perception of the operating status of high-voltage equipment in power transmission lines, which can solve the problems mentioned in the background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] In a first aspect, the present invention provides a method for panoramic perception of the operating status of high-voltage equipment of a power transmission line, comprising:

[0010] Acquire first monitoring data, first detection data, and first image data of a target device;

[0011] Performing degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount, and a third degradation amount;

[0012] Establishing a comprehensive evaluation model, and obtaining the operating state of the target device based on the first degradation amount, the second degradation amount, and the third degradation amount;

[0013] Complete status perception based on the target device's operating status.

[0014] As a preferred solution of the panoramic perception method for the operation status of high-voltage equipment of power transmission lines described in the present invention, the establishment of a comprehensive evaluation model includes:

[0015] The comprehensive evaluation model is any model whose output is the comprehensive score of the target equipment operating status and whose input is the degradation analysis result;

[0016] The degradation analysis result includes at least one or more of the first degradation amount, the second degradation amount, or the third degradation amount.

[0017] As a preferred solution of the panoramic perception method for the operation status of high-voltage equipment of a power transmission line according to the present invention, wherein: the degradation analysis of the first monitoring data, the first detection data and the first image data according to the preset degradation analysis method includes:

[0018] A third degradation amount is obtained by performing degradation analysis on the first image data using a preset first fusion recognition score algorithm.

[0019] As a preferred solution of the panoramic perception method for the operation status of high-voltage equipment of power transmission lines described in the present invention, the comprehensive evaluation model includes:

[0020] Performing a first-level scoring on the first degradation amount, the second degradation amount, and the third degradation amount;

[0021] The first-level scoring results are then given a second-level scoring to obtain a comprehensive score for the target equipment's operating status.

[0022] As a preferred solution of the panoramic perception method for the operating status of high-voltage equipment of power transmission lines described in the present invention, the comprehensive score of the operating status of the target equipment includes several score intervals, and each score interval corresponds to a unique status level.

[0023] As a preferred solution of the method for panoramic perception of the operating status of high-voltage equipment of power transmission lines according to the present invention, the first-level scoring includes:

[0024] Find the percentage of samples that meet the performance degradation condition in the state perception data to the total number of samples in the evaluation data;

[0025] Calculate the percentage of all state perception data that meet the performance degradation condition among all the state perception data samples participating in the evaluation;

[0026] Solve the state perception data samples to the extent that performance degradation is achieved;

[0027] The state perception data includes a first degradation amount, a second degradation amount, and a third degradation amount.

[0028] As a preferred solution of the method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to the present invention, the state perception according to the operating status of the target equipment includes:

[0029] Determine the status level according to the operating status of the target device;

[0030] Send an alarm notification for this status level to the equipment operation and maintenance department.

[0031] In a second aspect, the present invention provides a panoramic perception system for the operation status of high-voltage equipment of a power transmission line, comprising:

[0032] A data acquisition module, used to acquire first monitoring data, first detection data and first image data of a target device;

[0033] A degradation processing module, configured to perform degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount, and a third degradation amount;

[0034] A model building module, used to build a comprehensive evaluation model and obtain the target equipment operating state based on the first degradation amount, the second degradation amount and the third degradation amount;

[0035] The state perception module is used to complete state perception according to the operating state of the target device.

[0036] In a third aspect, the present invention provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned method when executing the computer program.

[0037] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the method described above when executed by a processor.

[0038] Compared with the prior art, the invention has the following beneficial effects: the invention proposes a method and system for panoramic perception of the operating status of high-voltage equipment of a transmission line, obtains the first monitoring data, the first detection data and the first image data of the target equipment; performs degradation analysis on the first monitoring data, the first detection data and the first image data according to a preset degradation analysis method, and obtains the first degradation amount, the second degradation amount and the third degradation amount; establishes a comprehensive evaluation model, and obtains the operating status of the target equipment based on the first degradation amount, the second degradation amount and the third degradation amount; completes state perception according to the operating status of the target equipment. By establishing a comprehensive evaluation model, a comprehensive evaluation of the operating status of the high-voltage equipment of the transmission line can be achieved, thereby providing more accurate and timely maintenance decision support. The method and system can effectively reduce the risk of power outages caused by equipment failures and improve the operating reliability of the transmission line. The use of non-contact monitoring technology reduces the requirements for the insulation performance of the equipment, reduces maintenance costs and operational risks. Through multi-parameter fusion technology, real-time monitoring of the equipment status is achieved, and the comprehensiveness and accuracy of monitoring and evaluation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0040] Figure 1 A method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line provided by an embodiment of the present invention;

[0041] Figure 2 A detailed flow chart of a method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line provided by an embodiment of the present invention;

[0042] Figure 3 A structural diagram of a neural network of a method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line provided by an embodiment of the present invention;

[0043] Figure 4 A system topology diagram of a method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line provided by an embodiment of the present invention;

[0044] Figure 5 A schematic diagram of a transmission line broadband voltage signal decoupling method and system for panoramic perception of the operating status of high-voltage equipment on a transmission line provided by an embodiment of the present invention;

[0045] Figure 6 An internal structural diagram of a computer device for a method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0047] Example 1

[0048] Reference Figure 1-Figure 6 , which is the first embodiment of the present invention, and provides a method and system for panoramic perception of the operating status of high-voltage equipment of a power transmission line, including:

[0049] There are some shortcomings in the existing related technologies. For example, traditional monitoring methods often rely on regular manual inspections, which is not only time-consuming and labor-intensive, but also difficult to achieve real-time monitoring of equipment status. In addition, due to the lack of effective data fusion and analysis methods, the existing monitoring system is difficult to accurately evaluate the comprehensive operating status of the equipment, resulting in untimely and inaccurate maintenance decisions.

[0050] The present application provides a method that can effectively solve the above-mentioned problems. Next, multiple embodiments will be combined to explain in detail how to implement the panoramic perception method for the operation status of high-voltage equipment on power transmission lines;

[0051] Figure 1 A method and system for panoramic perception of the operating status of high-voltage equipment on a power transmission line is shown, including:

[0052] S101, acquiring first monitoring data, first detection data, and first image data of a target device;

[0053] In an optional embodiment, the first monitoring data may be online monitoring data of the transmission line insulator leakage current and temperature, and overhead conductor voltage collected by preset sensors, or vibration signals, sound signals, etc. of the transmission line. The first detection data may be manual detection data of high-voltage equipment of the transmission line in the power grid management platform (asset domain) of the power grid enterprise, or electrical parameter data such as insulation resistance and contact resistance of the equipment obtained through regular detection. The first image data may be visible light image recognition data of high-voltage equipment of the transmission line in the power grid enterprise transmission line drone inspection and control platform, or it may be an image of the surface condition of the equipment taken by a high-definition camera, including but not limited to cracks, corrosion, contamination, etc. of the equipment.

[0054] In the embodiment of the present application, the first monitoring data adopts the online monitoring data of the leakage current and temperature of the insulator of the transmission line and the voltage of the overhead conductor collected by the sensor, the first detection data adopts the manual detection data of the high-voltage equipment of the transmission line in the power grid management platform (asset domain) of the power grid enterprise, and the first image data adopts the visible light image recognition data of the high-voltage equipment of the transmission line in the transmission line drone inspection and control platform of the power grid enterprise;

[0055] In an optional embodiment, the first monitoring data is collected by the sensor. The online monitoring data of the transmission line insulator leakage current can be collected by a non-contact insulator leakage current monitoring sensor based on adaptive filtering and noise reduction; the online temperature monitoring data can be collected by a non-contact composite insulator temperature monitoring sensor based on infrared thermal imaging; the online overhead conductor voltage monitoring data can be collected by a non-contact overhead conductor broadband voltage monitoring sensor based on the principle of vector electric field coupling;

[0056] It should be noted that the relevant monitoring sensors of the first monitoring data adopt automatic collection mode to reduce human intervention, that is, the status of high-voltage equipment of the transmission line is collected, processed and stored at predetermined time intervals, and the information is uploaded to the main station system located in the production command center of the provincial power grid enterprise.

[0057] In an optional embodiment, the manual detection data in the first detection data includes lightning arrester test, insulator live detection, ground wire infrared temperature measurement, and ground wire sag measurement.

[0058] In an optional embodiment, the visible light inspection target objects in the first image data include overhead wires, ground wires, lightning arresters, insulators, and hardware.

[0059] It should be noted that obtaining the first monitoring data, the first detection data, and the first image data of the target device can realize comprehensive monitoring of the high-voltage equipment of the transmission line and timely discover potential faults and abnormal conditions. Through real-time monitoring, it is possible to respond quickly to changes in the status of the equipment, thereby effectively preventing the occurrence of power outages. In addition, the method can also predict possible problems of the equipment by analyzing historical data, provide a scientific basis for maintenance decisions, and further improve the operating efficiency and reliability of the transmission line.

[0060] S102, performing degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount, and a third degradation amount;

[0061] In an embodiment of the present application, performing degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method includes:

[0062] A third degradation amount is obtained by performing degradation analysis on the first image data using a preset first fusion recognition score algorithm.

[0063] In an optional embodiment, the first fusion recognition score algorithm can use multimodal data fusion: this method combines data from different sensors or multiple sources of information to improve the accuracy and robustness of recognition. For example, image data is combined with sensor data to jointly analyze the degradation of the equipment.

[0064] In an optional embodiment, the first fusion recognition score algorithm can also be a deep learning model: using deep learning technology (such as convolutional neural network CNN, recurrent neural network RNN, etc.), it can automatically extract features from a large amount of complex data, and perform classification or regression analysis to predict the degree of degradation.

[0065] In an optional embodiment, the first fusion recognition score algorithm can also perform integrated learning: improving the performance of the overall model by combining the prediction results of multiple basic models (such as decision trees, support vector machines, etc.). This method can be bagging, boosting, or stacking.

[0066] It should be noted that no matter which means are used, the ultimate purpose is to degrade the first image data to obtain the third degradation amount, so the same type of operations should be within the protection scope of this application.

[0067] In the embodiment of the present application, the first fusion recognition score algorithm uses a set fusion recognition score to determine the relationship between real-time image information and historical experience values, thereby achieving the effect of degradation analysis.

[0068] Specifically, the recognition results of the global image of the transmission line and the local image of the components taken by the UAV are integrated and analyzed. When the fusion recognition score P is greater than the historical experience value, the accuracy of the recognition result of the drone patrol image can be confirmed;

[0069] In an optional embodiment, since the visible light patrol images taken by the drone include global images of the transmission line and local images of overhead wires, ground wires, lightning arresters, insulators, and hardware components, in order to simultaneously utilize the global information and local information of the visible light patrol images and weigh the role of the two types of information in component image recognition, it is proposed to use a branch fusion method to extract component features of different scales. When the fusion recognition score P is greater than the historical experience value, the recognition result that takes into account both the global image and the local image can be achieved to ensure the recognition accuracy. The recognition score P calculation formula is as follows:

[0070] P=μP1+λP2

[0071] Among them, P1 refers to the recognition result of the global image input of the transmission line, P2 refers to the recognition result of the local image input of the component, and μ and λ refer to the balance factors set to weigh different recognition results according to the prior values ​​of the positive samples trained by the model.

[0072] It should be noted that the proposed fusion recognition score algorithm aims to improve the recognition accuracy of the status of high-voltage equipment in power transmission lines by comprehensively considering global and local image information. In practical applications, the algorithm can effectively process a large amount of image data obtained during drone inspections, and quickly identify potential problems and degradation of equipment through intelligent analysis. For example, for cracks in insulators, damage to lightning arresters, corrosion of conductors, etc., the algorithm can give an accurate assessment of the degradation amount and provide timely decision support for maintenance personnel.

[0073] S103, establishing a comprehensive evaluation model, and obtaining the target device operating state based on the first degradation amount, the second degradation amount, and the third degradation amount;

[0074] In the embodiment of the present application, establishing a comprehensive evaluation model includes:

[0075] The comprehensive evaluation model is any model whose output is the comprehensive score of the target equipment operating status and whose input is the degradation analysis result;

[0076] The degradation analysis result includes at least one or more of the first degradation amount, the second degradation amount, or the third degradation amount.

[0077] In an optional embodiment, the comprehensive evaluation model can be trained on the degraded data by using a machine learning algorithm, such as a support vector machine (SVM), a random forest, a gradient boosting decision tree, etc., to establish a prediction model.

[0078] In an optional embodiment, the comprehensive evaluation model can also predict the future degradation trend of the equipment by utilizing historical data and real-time data through time series analysis.

[0079] In an optional embodiment, the comprehensive evaluation model can also integrate domain knowledge and empirical rules into the model by combining with an expert system to improve the accuracy and reliability of the evaluation.

[0080] In an optional embodiment, the comprehensive evaluation model can also balance the impact of different degradation amounts on the equipment operating status through a multi-objective optimization algorithm to obtain a more comprehensive equipment status evaluation.

[0081] In an optional embodiment, the comprehensive evaluation model can also realize a dynamic update mechanism of the model to continuously adjust and optimize model parameters according to newly collected data to adapt to changes in device status.

[0082] It should be noted that no matter which means are used to design the comprehensive evaluation model, as long as the output of the model is a comprehensive score of the target equipment operating status and the input is the degradation analysis result, it should be within the scope of protection of this application.

[0083] In the embodiment of the present application, the comprehensive evaluation model includes:

[0084] Performing a first-level scoring on the first degradation amount, the second degradation amount, and the third degradation amount;

[0085] The first-level scoring results are then given a second-level scoring to obtain a comprehensive score for the target equipment's operating status.

[0086] The comprehensive score of the target device operating status includes several score intervals, and each score interval corresponds to a unique status level.

[0087] In an optional embodiment, the first-level scoring can adopt an expert scoring method to subjectively score the degradation amount according to the experience and knowledge of domain experts; a fuzzy logic scoring system can also be used to convert the fuzzy degradation description into a specific scoring value; the analytic hierarchy process (AHP) can also be used to perform hierarchical scoring of the degradation amount by constructing a hierarchical structure model; a rule-based scoring system can also be implemented to score the degradation amount according to preset rules, and other related operations can all achieve the first-level scoring;

[0088] It should be noted that the purpose of the first-level scoring is to establish a corresponding scoring system for the first degradation amount, the second degradation amount, and the third degradation amount, so as to convert these amounts into comparable and operable scoring values.

[0089] In the embodiment of the present application, the first level scoring includes:

[0090] Find the percentage of samples that meet the performance degradation condition in the state perception data to the total number of samples in the evaluation data;

[0091] Calculate the percentage of all state perception data that meet the performance degradation condition among all the state perception data samples participating in the evaluation;

[0092] Solve the state perception data samples to the extent that performance degradation is achieved;

[0093] The state perception data includes a first degradation amount, a second degradation amount, and a third degradation amount.

[0094] Specifically, let F1 be the percentage of samples that meet the performance degradation condition to the total number of participating data samples, F2 be the percentage of all state-sensing data that meet the performance degradation condition to all state-sensing data, and F3 be the degree to which the state-sensing data samples meet the performance degradation. The calculation formulas for the three types of variables F1, F2, and F3 are as follows:

[0095]

[0096] Where, I refers to the total number of participating data samples; i1 refers to the number of participating data samples that do not meet the performance degradation conditions;

[0097]

[0098] Where I refers to the total number of participating data samples; i2 refers to the number of times that all samples did not reach the performance degradation condition during the period of sensing the transmission line operation status; K i It refers to the total state perception frequency of the i-th sample;

[0099] In the embodiment of the present application, to solve the variable F3, it is necessary to first calculate the degree to which the state perception data deviates from the performance degradation condition limit value (e ik ). When the indicator status perception data is lower than the performance degradation condition, it is considered that the performance degradation condition has not been reached. ik It refers to a positive indicator;

[0100]

[0101] On the contrary, when the state perception data is higher than the performance degradation condition limit, it is considered that the performance degradation condition has not been reached. ik It refers to the reverse indicator;

[0102]

[0103] Among them, the range of F3 is 0 to 100, which can reflect the degree to which the variable reaches and exceeds the performance degradation condition.

[0104] In an optional embodiment, the second-level scoring is based on the first-level scoring, further comprehensively considering the mutual influence and weights between different degradation quantities, and calculating through a mathematical model or algorithm to obtain a more accurate and comprehensive equipment operation status score. For example, the first-level scoring results can be converted into the final equipment operation status comprehensive score using methods such as weighted average method, principal component analysis (PCA) or factor analysis. Through such a two-level scoring mechanism, the actual operation status of the equipment can be reflected more meticulously, providing a more scientific basis for maintenance decisions.

[0105] In the embodiment of the present application, the second-level score is solved using the weighted average method;

[0106] In an optional embodiment, the comprehensive score of the target device operating status can be scored on a percentage basis, a ten-point basis, or a one-point basis. However, no matter which scoring method is used, the ultimate goal of the scoring is to provide an intuitive quantitative indicator so that operators and maintenance personnel can quickly understand the operating status of the equipment.

[0107] In the embodiment of the present application, a percentage system is selected, and the equipment operation status level division is designed as shown in Table 1;

[0108] Table 1 Classification of equipment operation status

[0109]

[0110] In an optional embodiment, relevant technical personnel may design more or fewer types of status levels, and may also change the scores of the scoring intervals according to specific experiments, which is not limited here.

[0111] It should be noted that the benefit of establishing a comprehensive evaluation model and obtaining the operating status of the target equipment based on the first degradation amount, the second degradation amount, and the third degradation amount is that it can realize real-time monitoring and prediction of the equipment operating status, thereby discovering potential risks and failures in advance and reducing the probability of sudden failures. In addition, through the comprehensive evaluation model, a scientific basis can be provided for equipment maintenance, maintenance plans can be optimized, maintenance efficiency can be improved, and maintenance costs can be reduced. In practical applications, the model can help power system operation and maintenance personnel better understand the equipment status, achieve precise maintenance, and ensure the stable operation of transmission lines and power supply safety.

[0112] S104, completing status perception according to the operating status of the target device.

[0113] In an embodiment of the present application, completing state perception according to the operating state of the target device includes:

[0114] Determine the status level according to the operating status of the target device;

[0115] Send an alarm notification for this status level to the equipment operation and maintenance department.

[0116] In an optional embodiment, the alarm notification may include the following information: equipment name, equipment number, current status level, status level description, recommended maintenance measures, estimated maintenance time window, and emergency contact information. The alarm notification is designed to provide operation and maintenance personnel with clear and intuitive equipment status information so that they can respond quickly and take appropriate maintenance measures. In addition, the alarm notification should also include historical status records and trend analysis to help technicians evaluate the evolution of equipment status and make more reasonable maintenance decisions. In this way, the stable operation of high-voltage equipment on the transmission line can be ensured, potential failures can be prevented, and the continuity and reliability of power supply can be guaranteed.

[0117] In an optional embodiment, after sending an alarm notification sheet for the status level to the equipment operation and maintenance department, the operation and maintenance personnel will take corresponding maintenance measures according to the content of the alarm notification sheet. These measures may include but are not limited to: inspecting the equipment, repairing or replacing parts, and adjusting equipment operating parameters. By responding to the alarm notification sheet in a timely manner, the occurrence of equipment failures can be effectively prevented and the stable operation of the transmission line can be ensured.

[0118] In an optional embodiment, if Figure 2 As shown, this method can be further refined as follows Figure 2 As shown, Start: The process starts from the "Start" node.

[0119] Data input: Three different data sources are input into the system: input of online monitoring data of transmission lines collected by non-contact sensors 201; input of drone inspection image recognition data of transmission line high-voltage equipment in the drone inspection and control platform 203; input of manual inspection data of transmission line high-voltage equipment in the power grid management platform 205;

[0120] Data analysis: Analyze each data source: analyze the electrical performance and mechanical performance degradation conditions of online monitoring data 202; integrate and analyze the line global image and component local image in the machine patrol image recognition data 204; analyze the electrical performance and mechanical performance degradation conditions of manual inspection data 206;

[0121] Solve the proportion and degree: solve the percentage of the number of samples that meet the performance degradation condition to the number of all participating data samples F1207; solve the percentage of all state-sensing data that meet the performance degradation condition to all state-sensing data samples F2208; solve the degree to which the state-sensing data samples meet the performance degradation F3209;

[0122] Evaluation results: Based on the evaluation results of any one of the three types of state perception data, the operation status level 210 of the high-voltage equipment of the transmission line is solved;

[0123] Notice issuance: For operation conditions that are severe, abnormal, or cautionary, a technical supervision warning notice 211 will be issued;

[0124] End: The process ends at the "End" node.

[0125] In summary, the present invention proposes a panoramic perception method for the operation status of high-voltage equipment of a transmission line, obtaining the first monitoring data, the first detection data and the first image data of the target equipment; performing degradation analysis on the first monitoring data, the first detection data and the first image data according to a preset degradation analysis method to obtain the first degradation amount, the second degradation amount and the third degradation amount; establishing a comprehensive evaluation model, and obtaining the operation status of the target equipment based on the first degradation amount, the second degradation amount and the third degradation amount; completing the state perception according to the operation status of the target equipment. By establishing a comprehensive evaluation model, a comprehensive evaluation of the operation status of the high-voltage equipment of the transmission line can be achieved, thereby providing more accurate and timely maintenance decision support. The method and system can effectively reduce the risk of power outages caused by equipment failures and improve the operation reliability of the transmission line. The use of non-contact monitoring technology reduces the requirements for the insulation performance of the equipment, reduces the maintenance cost and operation risk. Through multi-parameter fusion technology, real-time monitoring of the equipment status is achieved, and the comprehensiveness and accuracy of monitoring and evaluation are improved.

[0126] This embodiment also provides a panoramic perception system for the operation status of high-voltage equipment of a transmission line, including:

[0127] A data acquisition module, used to acquire first monitoring data, first detection data and first image data of a target device;

[0128] A degradation processing module, used to perform degradation analysis on the first monitoring data, the first detection data and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount and a third degradation amount;

[0129] A model building module, used to build a comprehensive evaluation model and obtain the operating state of the target device based on the first degradation amount, the second degradation amount and the third degradation amount;

[0130] The state perception module is used to complete state perception according to the operating state of the target device.

[0131] The above-mentioned unit modules may be embedded in or independent of a processor in a computer device in the form of hardware, or may be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to the above-mentioned modules.

[0132] This embodiment also provides a computer device, which may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 6 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a panoramic perception method for the operating status of high-voltage equipment for power transmission lines is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse.

[0133] This embodiment further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0134] Acquire first monitoring data, first detection data, and first image data of a target device;

[0135] Performing degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount, and a third degradation amount;

[0136] Establishing a comprehensive evaluation model, and obtaining the operating state of the target device based on the first degradation amount, the second degradation amount, and the third degradation amount;

[0137] Complete status perception based on the target device's operating status.

[0138] Example 2

[0139] According to another aspect of the embodiment of the present invention, a transmission line high-voltage equipment operating status perception system is also provided, which is used to carry the high-voltage equipment operating status analysis method and system thereof, and to construct a status perception system for overhead conductors, ground wires, lightning arresters, insulators, and hardware for overhead transmission lines of 110 kV and above. Among them, the software quality of the high-voltage equipment operating status panoramic perception system complies with the provisions of GB / T 16260.1 "Software Engineering Product Quality Part 1: Quality Model", GB / T16260.2 "Software Engineering Product Quality Part 2: Internal Quality", GB / T 16260.3 "Software Engineering Product Quality Part 3: External Quality", and GB / T 16260.4 "Software Engineering Product Quality Part 4: Measurement of Quality in Use", and the layers of the high-voltage equipment operating status panoramic perception system include infrastructure layer, data layer, application layer, and presentation layer.

[0140] As an optional embodiment, the infrastructure layer is to deploy non-contact monitoring sensors for high-voltage equipment of power transmission lines, including non-contact insulator leakage current monitoring sensors, non-contact overhead conductor broadband voltage monitoring sensors, and non-contact composite insulator temperature monitoring sensors, to avoid the potential hidden dangers of contact sensor installation to power transmission lines, and have the characteristics of safety and anti-interference. Among them, the monitoring sensor processes and collects equipment operation status information, stores and processes it on-site, and can interact with the main station system at the same time; and the technical personnel of the transmission management office regularly inspect and maintain, and statistically analyze the data to ensure the stable operation of the monitoring sensor and the accurate and reliable status perception data.

[0141] As an optional embodiment, the data layer is used to provide data support services and can provide a data base for the system presentation layer, including the collection of online monitoring data of transmission line insulator leakage current and temperature, and overhead wire voltage collected from different monitoring sensors, the collection of manual inspection data of transmission line high-voltage equipment from the power grid management platform (asset domain) of the power grid enterprise, and the collection of visible light image recognition data of transmission line high-voltage equipment from the transmission line drone inspection and control platform.

[0142] Among them, the data layer collects online monitoring data of the operation status of high-voltage equipment on the transmission line. The monitoring data station domain networking should use IPv4 addresses. The IP address setting in the network should meet the requirements of uniqueness, manageability, continuity and scalability. The two planes of the dispatching data network in the station should use independent IP address segments, of which the A plane should use the 10.0.0.0 / 8 segment private address, and the B plane should use the 20.0.0.0 / 8 segment address. The panoramic perception system of the operation status of high-voltage equipment on the transmission line needs to use one of the communication methods of the public communication network (excluding the Internet) and the wireless communication network (GPRS, CDMA, 230MHz, WLAN) to transmit online monitoring data, and a secure access area should be established. The logical structure of the horizontal interconnection of the secure access area, the logical structure of the vertical interconnection, and the overall deployment of network security protection equipment. Only the equipment necessary for public network collection (such as the public network front-end collection server) and the communication server should be deployed in the secure access area, and functions unrelated to public network collection should not be deployed in the secure access area. The encryption and authentication measures of the online monitoring system for high-voltage equipment of transmission lines are deployed between the front-end acquisition server and the public communication network. They are used for identity authentication of network data communication between the front-end acquisition server and the monitoring sensor and encryption and decryption of transmitted data, ensuring the legitimacy of the system connection and the confidentiality, integrity and non-repudiation of data transmission.

[0143] The horizontal networking data network that collects manual detection data of the operating status of high-voltage equipment on the data layer of the transmission line should adopt a mechanism based on the DiffServ service model to solve network delay and congestion guarantee (Quality of Service, QoS). QoS measures such as port speed limiting, traffic shaping, and queue scheduling should be adopted according to business needs to ensure network availability. When the WAN link is congested, priority bandwidth should be guaranteed for services with high real-time requirements. Differentiated Services Code Point (Differentiated Services Code Point, DSCP) and EXP data fields should be used to identify business priorities.

[0144] The main equipment for horizontal and vertical interconnection between the transmission line drone inspection and control platform and the panoramic perception system of the operation status of high-voltage equipment of the transmission line in the data layer, and between the transmission line drone inspection and control platform and drones include interconnection switches of various state perception systems, forward and reverse isolation devices, vertical encryption authentication devices, firewalls, secure access areas, dispatching data networks, integrated data networks and public communication networks, and relevant communication equipment can be deployed in a redundant standby structure. The interconnection switch is used for the collection and access of business systems with vertical and horizontal data communication, access control between access systems, and horizontal and vertical interconnection of security areas. The forward and reverse isolation devices are deployed at the network boundary between the non-control area and the management information area, and are used for the physical isolation of the production control area network and the management information area network, so as to realize that the relevant business systems of the production control area send data to the relevant business systems of the management information area in a forward unidirectional manner; the relevant business systems of the management information area import plain text data to the relevant business systems of the production control area in a reverse unidirectional manner. The non-control area vertical encryption authentication gateway is deployed between the non-control area and the non-real-time VPN of the dispatching data network. It is used for the identity authentication, access control and encryption and decryption of the network data communication between the local non-control area and the relevant business systems or business modules of the remote non-control area, to ensure the legitimacy of the system connection and the confidentiality and integrity of the data transmission. When the business system in the production control area needs to use the public communication network, a secure access area should be deployed, and the Internet should not be used for business data transmission.

[0145] As an optional embodiment, the application layer performs data storage and calculation processing, including judging the electrical performance and mechanical performance degradation of the transmission line high-voltage equipment operation status, evaluating and quantifying the operation status level of the transmission line high-voltage equipment; deploying a transmission line high-voltage equipment operation status analysis neural network (such as Figure 3As shown in the figure, the neural network includes comprehensive analysis of online monitoring data, manual detection data, and machine patrol image recognition data to confirm the performance degradation status level of overhead conductors, ground wires, lightning arresters, insulators, and hardware for overhead transmission lines of 110 kV and above. Draw time series curves of online monitoring data, manual detection data, and machine patrol image recognition data, and integrate and analyze the analysis results of different types of state perception data for the same equipment and the same insulation fault to avoid the lack of a certain type of state perception data and the impact of timely grasp of equipment operation status changes. After deploying the transmission line high-voltage equipment operation status analysis neural network, using this as a model, the application layer of the transmission line high-voltage equipment operation status panoramic perception system is the electrical performance and mechanical performance hazards of overhead conductors, ground wires, lightning arresters, insulators, and hardware for overhead transmission lines of 110 kV and above, and open up a corresponding shared area for storage and calculation of operation status perception data, and integrate the source data and analysis results required by various data analysis algorithms for the same electrical or mechanical fault into the same data model object. The data sharing area can provide an effective way for the concurrent operation and evaluation calculation of various data analysis algorithms, that is, the fault information groups of the same fault period or different fault periods can be accessed and processed by various analysis and processing subsystems at the same time. If the analysis of a certain insulation fault information by a newly added subsystem does not meet the conditions, it will turn to process the fault information of other equipment.

[0146] For manual inspection data to determine the operating status of high-voltage equipment on power transmission lines, the conditions for determining performance and mechanical performance degradation are as follows;

[0147] Optionally, the line arrester test result is determined based on the insulation resistance of the arrester body and the supporting insulator being less than 1000 megohms, which can be determined as electrical performance degradation;

[0148] Optionally, the basis for judging the result of the live insulator detection is that if the voltage value of the insulator under test is lower than 50% of the standard value, it can be judged that the electrical performance is deteriorated; if the voltage value of the insulator under test is higher than 50% of the standard value and significantly lower than the voltage value of the qualified insulators on both adjacent sides, it can be judged that the electrical performance is deteriorated;

[0149] Optionally, the infrared temperature measurement result of the ground conductor is determined based on the failure to meet the following requirements: the temperature of the transmission line conductor contact point may be slightly higher than the conductor temperature, but should not exceed 10 degrees Celsius, and should not be higher than the allowable operating temperature of the conductor, and taking into account the load changes at that time and the previous hour and the atmospheric environmental conditions, it can be determined that the electrical performance is deteriorated;

[0150] Optionally, the basis for determining the measurement result of the ground wire sag is that the sag fails to meet the following requirements: the allowable deviation range of the sag of the 110 kV transmission line tightening line after hanging the line is +5%, -2.5%, and the allowable deviation range of the sag of the 220 kV and above transmission line tightening line after hanging the line is ±2.5%; the allowable deviation value of the sag between phases of the 110 kV transmission line conductor and the overhead ground wire is 200 mm, and the allowable deviation value of the sag between phases of the 220 kV and above transmission line conductor and the overhead ground wire is 300 mm; the allowable deviation of the sag of the same-phase sub-conductors of the split conductors of the 220 kV transmission line conductor installed with spacers is 80 mm, and the allowable deviation of the sag of the same-phase sub-conductors of the split conductors of the 330 to 500 kV transmission line conductor installed with spacers is 80 mm, which can be determined as electrical performance degradation.

[0151] For the mechanical inspection image recognition data used to determine the operating status of high-voltage equipment on power transmission lines, the conditions for determining the performance and mechanical performance degradation are as follows;

[0152] Optionally, the broken umbrella group or missing locking pin of the inspected insulator, the tilt of the insulator string, the crack or break of the iron cap, the rust damage or discharge of the steel foot can be judged as mechanical performance degradation;

[0153] Optionally, if the inspected overhead wires and ground wires have loose strands, broken strands, broken wires, rust damage, or discharge, it can be determined that the mechanical properties are deteriorated;

[0154] Optionally, if the inspected line hardware has wire clamp breakage, pin loss, deformation, rust damage, anti-vibration hammer displacement, looseness, deformation, rust damage, spacer displacement, looseness, deformation, adjustment plate damage, cracking, equalizing ring and shielding ring burn, looseness, it can be determined that the mechanical performance is deteriorated;

[0155] Optionally, if the inspected arrester has loose leads, deformed discharge gap or burns, it can be determined that the electrical performance is degraded.

[0156] As an optional embodiment, the presentation layer is used to display online monitoring data, manual detection data, machine patrol image recognition data, time series curves, and operating status levels that can reflect the electrical and mechanical properties of high-voltage equipment in power transmission lines; the Web server uses axis or axis2 and other related technologies to implement the interface service of the corresponding business and deploy .aar interface services. Get a valid WebService interface address; the Web server publishes internal resources (web applications, http protocols) on the service by establishing https services; the SSL VPN protocol provides basic authentication certificates and encryption and decryption algorithms. When transmitting data, it first shakes hands with the SSL VPN protocol server, reaches an agreement on a protocol version, automatically selects encryption algorithms and authentication methods, and then encrypts the sent data according to the encryption algorithm. The SSL VPN protocol decrypts according to the encryption algorithm and forwards it to the policy router after decryption; when the production command center of the power supply bureau and the equipment operation and maintenance personnel of the power transmission management office access the Web server, they can use parameters or different ports (publish multiple https services) to distinguish the resources to be jumped, and are compatible with GDCA digital certificates required by cryptographic algorithms such as SM2, SM3, SM4, and RSA to ensure the legitimacy of the certificate.

[0157] The present invention is not limited to the above specific implementation methods. The above are only preferred implementation cases of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0158] Example 3

[0159] According to another aspect of the embodiment of the present invention, a more specific panoramic perception system for the operation status of high-voltage equipment of a power transmission line is provided. Figure 4 is a schematic diagram of a panoramic perception system for the operation status of high-voltage equipment according to an embodiment of the present invention. Figure 4 As shown, the system includes an infrastructure layer, a data layer, an application layer, and a presentation layer. The infrastructure layer is a non-contact monitoring sensor deployed for high-voltage equipment of transmission lines, including a non-contact insulator leakage current monitoring sensor, a non-contact overhead conductor broadband voltage monitoring sensor, and a non-contact composite insulator temperature monitoring sensor; the data layer, as a data base for providing data support services, includes a front-end acquisition server, a horizontal acquisition server, a secure access area switch, and an intranet switch; the application layer includes an application server, a time series database server, and a relational database server; the presentation layer includes a Web server, an engineer station, and an operator station; the various levels of the system are connected to each other through the integrated power data network, and the monitoring sensors are connected to the secure access area switches through a public communication network.

[0160] The sensing layer deploys non-contact monitoring sensors for high-voltage equipment of transmission lines, mainly including leakage current monitoring sensors, broadband voltage monitoring sensors, and temperature monitoring sensors, which are installed near the overhead wires and insulators of the transmission lines. The number of sensor measurement points is determined according to the scale of the high-voltage equipment of the transmission lines to be monitored, and the online rate of monitoring sensors is not less than 99%; the technical requirements of the monitoring sensors shall comply with the provisions of GB / T 35697 "General Technical Specifications for Online Monitoring Devices of Overhead Transmission Lines", the on-site communication mode of the monitoring sensor shall support at least one of the three modes of serial communication, short-range wireless communication, and network communication, and the remote communication mode between the monitoring sensor and the master station system shall support at least wireless network communication, optical fiber communication, and satellite communication, the service life shall be not less than 8 years, the data loss rate shall be less than 1%, the current measurement range of the insulator leakage current monitoring sensor is 50 to 50 mA, and the frequency measurement range is 10 Hz to 150 kHz; the broadband voltage The monitoring sensor has a measurement bandwidth of 10 MHz, a linearity of 2.3%, an amplitude error of less than 1.3%, and a phase error of less than 2.1°; the measurement range of ordinary wire temperature sensors is -55 to +120 degrees Celsius, and the measurement accuracy is ±1.0 degrees Celsius; the measurement range of heat-resistant wire temperature sensors is -55 to +180 degrees Celsius, and the measurement accuracy is ±1.0 degrees Celsius; the measurement range of ultra / special heat-resistant wire temperature sensors is -55 to +290 degrees Celsius, and the measurement accuracy is ±1.0 degrees Celsius.

[0161] The data layer mainly includes front-end collection servers, horizontal collection servers, secure access zone switches, and intranet switches, which are deployed in the communication room of the production command center of the power supply bureau, with one set in each.

[0162] The front-end collection server and horizontal collection server of the data layer are both NF5280M5 2U rack servers, equipped with four 8-core Xeon E7-8893 V4 series CPUs, 14 nanometers, supporting hyperthreading, with a cache of no less than 25 megabytes, an original main frequency of no less than 3.2 GHz, and a bus specification of QPI 9.6GT / s; the memory configuration is no less than 128 gigabytes of DDR4 memory, the maximum total number of memory slots is no less than 64, and the slot type is LGA 2011; the hard disk configuration is 4 600 gigabyte, 12,000 rpm serial-attached SCSI hard disks; the network card is equipped with no less than 8 independent 10 / 100 / 1000M-BaseT Ethernet ports;

[0163] The data exchange, customized protocols, deployment architecture, data transmission security specifications, and protection mechanisms of the data layer front-end acquisition server shall comply with the provisions of Q / CSG 1210017 "Technical Specifications for Internal and External Network Data Security Exchange Platform", Q / CSG 1210007 "Data Transmission Security Standards", and Q / CSG 1204009 "Technical Specifications for Security Protection of Power Monitoring Systems". The online monitoring data of insulator leakage current, overhead line broadband voltage, and composite insulator temperature shall be collected through the secure access area switch to provide data services for the time series database server; the data layer front-end acquisition server scans the exchanged data and instructions through the firewall, closes abnormal ports, and prevents intrusion.

[0164] Optionally, data exchange refers to the transmission, reception, interpretation and analysis of data.

[0165] The data exchange, customized protocols, deployment architecture, data transmission security specifications, and protection mechanisms of the horizontal data layer collection server shall comply with the provisions of Q / CSG 1210017 "Technical Specifications for Intranet and Extranet Data Security Exchange Platform", Q / CSG 1210007 "Data Transmission Security Standards", and Q / CSG 1204009 "Technical Specifications for Security Protection of Power Monitoring Systems"; collect manual inspection data on transmission line arrester tests, insulator live detection, ground wire infrared temperature measurement, and ground wire sag measurement from the intermediate library server of the power grid management platform (asset domain) through the intranet switch; collect visible light image recognition data on overhead wires, ground wires, lightning arresters, insulators, and hardware of transmission lines from the intermediate library server of the transmission line drone inspection and control platform, and provide data services for the relational database server.

[0166] The number of intranet switches is 1 set, which is deployed in the communication room of the production command center of the power supply bureau. The physical interface, protocol, interconnection and compatibility requirements of the intranet switch shall comply with the provisions of Q / CSG 1204016.3 "Part 3: Technical Requirements for Data Network Equipment". It is used to connect the data layer horizontal acquisition server, relationship database data server, application server, Web server, engineer station, and operator station through the power integrated data network composed of optical fibers;

[0167] The number of switches in the secure access area is 1 set, which is deployed in the communication room of the production command center of the power supply bureau. It is equipped with 24 10 / 100 / 1000 Mbps adaptive electrical ports, a switching capacity of not less than 150 Mbps, a second and third layer packet forwarding capacity of not less than 95 Mbps, a concurrent flow statistics of not less than 400,000, a data message forwarding delay of less than 1 millisecond, and supports LDP MD5, VRRP MD5, and NTP MD5 encryption authentication. The switch in the secure access area is used to connect the front-end acquisition server and the real-time database data server through the power integrated data network composed of optical fibers.

[0168] The application layer mainly includes application servers, time series database servers, and relational database servers, which are deployed in the information room of the production command center of the power supply bureau, with one set each.

[0169] The application server is an NP3020 M5 tower server, equipped with four 10-core Xeon-Silver series CPUs, supporting hyperthreading, with a cache of no less than 20 megabytes and an original main frequency of no less than 3.4 GHz; the memory is configured with no less than 128 gigabytes of DDR4 memory, and the maximum total number of memory slots is no less than 64; the hard disk is configured with two 600 gigabyte, 12,000 rpm serial attached SCSI hard disks;

[0170] The time series database server and relational database server are both NF5280M5 2U rack servers, equipped with two 8-core Xeon E7 V4 series CPUs, supporting hyperthreading, with a cache of no less than 25 megabytes and an original main frequency of no less than 1.9 GHz; the memory configuration is no less than 128 gigabytes of DDR4 memory, and the maximum total number of memory slots is no less than 64; the hard disk configuration is 4 600 gigabyte, 12,000 rpm serial attached SCSI hard disks; the network card is equipped with 8 independent 10 / 100 / 1000M-BaseT Ethernet ports;

[0171] The application server deploys a neural network for analyzing the operating status of high-voltage equipment on transmission lines. In the input layer, online monitoring data, manual inspection data, and machine patrol image recognition data that can represent the operation of high-voltage equipment on transmission lines at a specific moment are input. The online monitoring data include monitoring data on insulator leakage current, overhead conductor broadband voltage, and composite insulator temperature. The manual inspection data include inspection data on arrester test, live insulator inspection, infrared temperature measurement of ground wire, and sag measurement of ground wire. The machine patrol image recognition data include image recognition data on overhead conductors, ground wires, arresters, insulators, and hardware. In the hidden layer, the degree of degradation of the electrical and mechanical properties of high-voltage equipment on transmission lines is analyzed and judged, the initial value of the operating status level of high-voltage equipment is solved, and time series curves of online monitoring data, manual inspection data, and machine patrol image recognition data of high-voltage equipment are plotted. In the output layer, online monitoring data, manual inspection data, machine patrol image recognition data, time series curves, and operating status levels that can reflect the electrical and mechanical properties of high-voltage equipment on transmission lines are output and displayed, and data services are provided to the Web server through the intranet switch.

[0172] The real-time database data server and the relational database data server are used to store online monitoring data, manual inspection data, machine patrol image recognition data, ledger information, and relevant data on the performance degradation degree of the operating status of the high-voltage equipment, the time series of the status perception data, and the operating status level; its data exchange, customized protocol, data transmission security specification, and protection mechanism shall comply with the provisions of GB / T 20273 "Technical Requirements for Database Management System Security" and Q / CSG 1210007 "Data Transmission Security Standard". Its relational database data server is used to store manual inspection data, equipment ledger information, and operating status analysis related data; the real-time database data server is used to store online monitoring data and provide data services to the application server through the intranet switch.

[0173] The presentation layer mainly includes Web servers, engineer stations, and operator stations. The Web server is deployed in the communication room of the production command center of the power supply bureau, and the engineer station and operator station are deployed in the control room of the production command center of the power supply bureau. There are 1 set of each.

[0174] The Web server is a NF5280M5 2U rack-mounted server, equipped with two 8-core Xeon E7 V4 series CPUs, supporting hyperthreading, with a cache of no less than 25 megabytes and an original main frequency of no less than 1.9 GHz; the memory is configured with no less than 128 gigabytes of DDR4 memory, and the maximum total number of memory slots is no less than 64; the hard disk is configured with four 600-gigabyte, 12,000-rpm serial-attached SCSI hard disks; the network card is equipped with eight independent 10 / 100 / 1000M-BaseT Ethernet ports;

[0175] The technical access measures of the Web server shall comply with the provisions of Q / CSG 1204009 "Technical Specifications for Security Protection of Electric Power Monitoring Systems", and the management measures shall comply with the provisions of Q / CSG 212001 "Management Measures for Security Protection of Electric Power Monitoring Systems". Its application system requirements shall comply with the provisions of DL / T 1352 "Technical Guidelines for Electric Power Emergency Command Centers". The system's access verification requirements for the equipment operation and maintenance personnel of the power supply bureau's production command center and the transmission management office shall comply with the provisions of GB / T 20272 "Technical Requirements for Operating System Security".

[0176] The engineer station uses a ThinkStation P310 series dual-core workstation.

[0177] The configuration principles and technical requirements of the engineer station should comply with the requirements of Q / CSG 1203005 "Technical Guidelines for Power Secondary Equipment" regarding computer monitoring systems, and be used to provide services for system administrators to maintain a panoramic perception system for the operating status of high-voltage equipment.

[0178] The operator station uses the ThinkStation K series workstation.

[0179] The configuration principles and technical requirements of the operator station shall comply with the requirements of Q / CSG 1203005 "Technical Guidelines for Power Secondary Equipment" regarding computer monitoring systems, and shall be used to provide technical services for system managers and on-duty personnel regarding monitoring and early warning, emergency response, load transfer, emergency repairs, technical transformation and repair, and material allocation.

[0180] Example 4

[0181] In the specific installation and deployment process of the panoramic perception system for the operation status of high-voltage equipment, first, select the annual key transmission lines, especially the high-voltage equipment with historical defects and family defects. Secondly, according to the needs of the equipment scale, the non-contact monitoring sensors for the high-voltage equipment of the transmission line, mainly including leakage current monitoring sensors, broadband voltage monitoring sensors, and temperature monitoring sensors, are installed near the equipment body of the overhead wires and insulators of the transmission line; and at the same time, a monitoring sensor ledger is established, including classification by line voltage level, registering the line name, tower number, equipment type, and original equipment ID corresponding to the monitoring sensor. Thirdly, the front-end acquisition server, horizontal acquisition server, secure access zone switch, and intranet switch of the data layer are deployed in the communication room of the production command center of the power supply bureau, the application server, time series database server, and relational database server of the application layer are deployed in the information room of the production command center of the power supply bureau, the Web server of the presentation layer is deployed in the communication room of the production command center of the power supply bureau, and the engineer station and operator station of the presentation layer are deployed in the control room of the production command center of the power supply bureau (the number of the above system equipment is 1 set), and apply for a digital certificate to confirm the network channel. Finally, the production command center of the power supply bureau should conduct routine monitoring and analysis of the operating status of high-voltage equipment every day, monitor and track the defects and hidden dangers of high-voltage equipment in key annual transmission lines, promptly issue technical supervision alarm notices to the transmission management office, and track them to the node closed loop.

[0182] Optionally, the operation status of the transmission line refers to the condition of the high-voltage equipment itself, the channel environment condition, and the influence of the surrounding environment during the operation of the transmission line.

[0183] Optionally, the state quantity refers to a physical quantity reflecting the state of the power transmission line main body equipment, meteorological environment, channel conditions, etc.

[0184] The technical staff of the production command center of the power supply bureau found that the panoramic perception system of the operation status of the high-voltage equipment of the transmission line checked the abnormal operation status perception data, as well as the display of the wiring diagram, map, and chart, and checked the charts and data details of the line monitoring data processing results. With the assistance of the high-voltage equipment operation status analysis neural network, it is preliminarily determined that the voltage of the high-voltage equipment is abnormal. The whole process of the embodiment is that since the electric field component is in direct proportion to the induced voltage, it is equivalent to the direct proportional relationship between the spatial electric field and the sensor induced voltage. The non-contact broadband voltage monitoring sensor based on the principle of vector electric field coupling is based on the linear relationship between the electric field around the energized overhead wire and the voltage of the overhead wire. By increasing the inter-electrode capacitance, the measurement accuracy and response speed of the vector electric field sensor can be improved to achieve broadband measurement of the transmission line voltage. The non-contact broadband voltage monitoring sensor is placed below the three-phase overhead wire of the transmission line (such as Figure 5 As shown in the figure, the three overhead conductors A, B, and C are equivalent three-phase AC transmission lines, and their voltages are UA, UB, and UC respectively. The distance between the center of the sensor and the overhead conductor is d, the distance between the overhead conductor and the ground is H, the phase spacing between the three overhead conductors is L, and the radius of the transmission line is ρ. When the broadband voltage monitoring sensor is located directly below the B phase conductor, it is symmetrically distributed with the same distance from the A and C phase conductors. Assuming that the equivalent spacing between the plates is l, ε0 is the dielectric constant, the electric field signal is integrated from the measuring point along the plate spacing path, and the proportional coefficient relationship between the induced voltage and the transmission line voltage is obtained. At this time, considering that when the sensor is symmetrically distributed about the x, y, and z axes and is placed directly below the middle phase of the transmission line, as well as the sensor structural characteristics and signal output mode, a decoupling matrix of the transmission line voltage and the spatial electric field is established based on a single sensor in a three-dimensional coordinate system, the relationship between the introduced sensor output signal and the spatial electric field is solved, and the transmission line voltage is obtained based on the proportional relationship between the induced voltage and the electric field component.

[0185] The main implementation contents in the specific disposal process are as follows:

[0186] In an exemplary implementation, the power transmission management office of the power supply bureau, in conjunction with the Electric Power Science Research Institute and the production and technology department of the power supply bureau, found cases of electrical or mechanical performance degradation based on online monitoring and early warning, and conducted a comprehensive analysis based on the weather conditions, geographical environment, line ledger information, on-site fault inspection information and other data of the fault section, combined with the characteristics of the line equipment and previous fault experience. First, the fault type of the high-voltage equipment of the transmission line is determined, and targeted infrared thermal imaging temperature measurement and other Class C maintenance, Class D maintenance or Class E maintenance are carried out. Furthermore, the cause of the fault should also be diagnosed according to the type of fault. For example, if the initial judgment is that the type of fault of the high-voltage equipment of the transmission line is external force damage, it should be further determined that the cause of the fault is a mountain fire, tree obstacle or nearby large-scale mechanical construction. Among them, Class C maintenance refers to testing and work that requires line power outages, and general defect elimination work that requires line power outages; Class D maintenance refers to ground or ground potential inspection, testing, maintenance, replacement and other maintenance work that does not require power outages; Class E maintenance refers to inspection, testing, maintenance, replacement and other maintenance work carried out by live working.

[0187] In an exemplary implementation, the production command center of the power supply bureau, in conjunction with the power dispatching department, guides the power transmission management office of the power supply bureau to take emergency power outage and load transfer measures for equipment that has abnormal ground wire sag confirmed by live detection and diagnostic tests, and to carry out emergency fault handling such as adjusting the ground wire sag and faulty equipment maintenance for the purpose of emergency repair and power restoration to ensure the safe and stable operation of the power system. Among them, the maintenance of faulty equipment must comply with the relevant guidelines and process requirements of the high-voltage equipment manufacturer, and special maintenance plans and operating instructions must be formulated. The maintenance environment, organizational measures, technical measures, safety measures, procedures, process quality standards and other requirements are clearly stated in the operating instructions, and the maintenance implementation strictly follows the operating instructions. The maintenance of faulty equipment mainly includes Class A maintenance and Class B maintenance. Among them, Class A maintenance refers to technical transformation work that requires power outage of the line, mainly including large-scale maintenance work of line units that support live operation of the line, such as pole tower replacement and transformation, ground wire replacement, batch replacement of insulators and other projects involving power outage for technical transformation; Class B maintenance refers to maintenance work that requires power outage of the line, mainly including line unit components that support live operation of the line or other maintenance work that involves power outage to eliminate major or above defects and improve safety and reliability, such as replacement of pole tower components, replacement of a small number of insulators, replacement of lightning arresters, etc.

[0188] In an exemplary implementation, the power transmission management office of the power supply bureau and the supply chain department purchase or allocate spare parts that need to be replaced for high-voltage equipment with deteriorated electrical and mechanical properties, including crossarms or main materials, insulators, lightning arresters, hardware, spacers, anti-vibration hammers, anti-pollution flashover coatings and other maintenance and technical transformation materials to support emergency repairs and power restoration. Spare parts should be provided by the original manufacturer with the same material and quality as the original equipment. Spare parts should be processed and packaged as required and packed separately. The boxes should be clearly marked. Spare parts should indicate the validity period and necessary structural drawings; special tools and instruments should be accompanied by technical parameters, instruction manuals and other information.

[0189] In an exemplary implementation, after emergency response and technical transformation and repair, the equipment operation and maintenance personnel of the power supply bureau's transmission management office will determine whether the monitoring sampling points are sufficient and the locations are appropriate based on the panoramic perception of the equipment's operating status, and propose plans for adding and adjusting sensors.

[0190] Example 5

[0191] According to another aspect of an embodiment of the present invention, a computer solid-state readable storage medium is also provided, wherein the computer solid-state readable storage medium includes a program developed based on an integrated development environment (IntelliJ IDEA) and stored therein, wherein when the program is running, the device where the computer solid-state readable storage medium is located is controlled to execute any one of the above-mentioned methods for analyzing the operating status of high-voltage equipment for transmission lines.

[0192] Optionally, in this embodiment, the above-mentioned computer solid-state readable storage medium can be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group, and the above-mentioned computer solid-state readable storage medium includes a stored program.

[0193] According to another aspect of an embodiment of the present invention, a digital integrated circuit is provided. The digital integrated circuit is used to run a program, wherein any one of the above-mentioned methods for analyzing the operating status of a high-voltage device is executed when the program is run.

[0194] An embodiment of the present invention provides a device, which includes a digital integrated circuit, a memory, and a program stored in the memory and executable on the digital integrated circuit. When the digital integrated circuit executes the program, the steps of the high-voltage equipment operating status analysis method are implemented.

[0195] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0196] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0197] In the several embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the system embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of units or modules can be electrical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0198] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional modules.

[0199] If the integrated unit is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: USB flash drive, read-only memory (ROM), random access memory (RAM), solid-state hard disk memory, magnetic disk or optical disk and other media that can store program codes.

[0200] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A panoramic perception method for the operating status of high-voltage equipment in power transmission lines, characterized in that: include: Acquire first monitoring data, first detection data, and first image data of a target device; Performing degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount, and a third degradation amount; Establishing a comprehensive evaluation model, and obtaining the operating state of the target device based on the first degradation amount, the second degradation amount, and the third degradation amount; Complete status perception based on the target device's operating status.

2. The method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to claim 1, characterized in that: The establishment of a comprehensive evaluation model comprises: The comprehensive evaluation model is any model whose output is the comprehensive score of the target equipment operating status and whose input is the degradation analysis result; The degradation analysis result includes at least one or more of the first degradation amount, the second degradation amount, or the third degradation amount.

3. The method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to claim 2, characterized in that: The performing degradation analysis on the first monitoring data, the first detection data and the first image data according to the preset degradation analysis method includes: A third degradation amount is obtained by performing degradation analysis on the first image data using a preset first fusion recognition score algorithm.

4. The method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to claim 3 is characterized in that: The comprehensive evaluation model includes: Performing a first-level scoring on the first degradation amount, the second degradation amount, and the third degradation amount; The first-level scoring results are then given a second-level scoring to obtain a comprehensive score for the target equipment's operating status.

5. The method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to claim 4, characterized in that: The comprehensive score of the target device operating status includes several score intervals, and each score interval corresponds to a unique status level.

6. The method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to claim 5, characterized in that: The first level of scoring includes: Find the percentage of samples that meet the performance degradation condition in the state perception data to the total number of samples in the evaluation data; Calculate the percentage of all state perception data that meet the performance degradation condition among all the state perception data samples participating in the evaluation; Solve the state perception data samples to the extent that performance degradation is achieved; The state perception data includes a first degradation amount, a second degradation amount, and a third degradation amount.

7. The method for panoramic perception of the operating status of high-voltage equipment for power transmission lines according to claim 6, characterized in that: The state perception according to the running state of the target device includes: Determine the status level according to the operating status of the target device; Send an alarm notification for this status level to the equipment operation and maintenance department.

8. A panoramic perception system for the operating status of high-voltage equipment on power transmission lines, characterized in that: include: A data acquisition module, used to acquire first monitoring data, first detection data and first image data of a target device; A degradation processing module, configured to perform degradation analysis on the first monitoring data, the first detection data, and the first image data according to a preset degradation analysis method to obtain a first degradation amount, a second degradation amount, and a third degradation amount; A model building module, used to build a comprehensive evaluation model and obtain the target equipment operating state based on the first degradation amount, the second degradation amount and the third degradation amount; The state perception module is used to complete state perception according to the operating state of the target device.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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