Substation united special remote inspection method and system

Abstract

The invention discloses a substation united special remote inspection method and system, and relates to the technical field of power systems, and the method comprises the steps: obtaining the environment and equipment state data of a substation through monitoring equipment, and judging whether to trigger an inspection task or not based on a preset condition; when the trigger condition is met, selecting and starting the acquisition equipment to execute a patrol task; the acquisition equipment executes inspection and acquires equipment state and environment data in real time; and analyzing the collected data, judging whether an abnormal condition exists or not, and generating an inspection report. According to the substation united special remote inspection method provided by the invention, independent inspection or multi-project united inspection of videos, unmanned aerial vehicles, robots and secondary equipment can be autonomously selected in a primary inspection task according to inspection operation requirements; when a patrol operation task is carried out, two modes of manual instant auditing and confirmation of a key patrol point position or auditing after a report is generated by background patrol can be realized, so that patrol quality and human resources can be flexibly coordinated and managed.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a method and system for joint special remote inspection of substations. Background Art

[0002] Remote inspection of substations is a production auxiliary means commonly used in my country's power production industry. It can save human resources and reduce operation and maintenance costs to a certain extent. At present, drones, robots, video surveillance and online monitoring equipment are mainly used to replace the regular daily inspections, meter readings and infrared temperature measurement on site. Due to the different ways of carrying out inspection projects, it is often necessary to export the corresponding record content through different control systems, application software, etc., and when the inspection route or inspection object changes, all systems involved need to be updated and maintained. In addition, due to the special requirements of the power grid industry for network security, many data cannot realize real-time data interaction with the public network used by drones, robots, and video monitoring system manufacturers, which has created some obstacles to the digital transformation of substation operation business.

[0003] To this end, it is achieved that substation video inspections, robot and drone inspections, local monitoring background, remote centralized control background, robot room, network transmission, navigation facilities, and micro-meteorological detection equipment are connected, managed and operated on the same platform. The substation inspection operation is carried out in a fully autonomous or remote control mode, or the joint inspection method of the substation with remote video inspection and guidance can be unified and centrally controlled through the centralized control layer, which can greatly improve the efficiency of substation inspections and network security.

[0004] With the rapid growth of the scale of power grids and the continuous development and large-scale application of digital intelligent technology, remote inspections have gradually replaced on-site inspections. However, with the substantial increase in the amount of remote inspection data, the frequency and requirements of personalized inspections have continued to increase, and the existing remote inspection model is difficult to meet the requirements. The existing remote inspection model is difficult to meet the differentiated special inspection requirements such as power supply guarantee, peak summer, flood control and prevention. Special inspections such as flood control and prevention, power supply guarantee, peak summer overload, etc. are very important tasks in substation operation. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention is proposed.

[0006] Therefore, the technical problem solved by the present invention is that when the existing method carries out special inspections, the operating personnel need to pull the camera one by one through the video system to conduct remote inspections, which is very time-consuming and labor-intensive and has low inspection efficiency. The inspection process cannot carry out inspections at multiple stations at the same time, and can only be carried out station by station, which is very inconvenient; there is no fixed inspection mode, and it is easy to cause legacy and incomplete inspections; the requirements for differentiated special inspections such as power supply guarantee, peak summer, flood prevention and control are very different, and cannot meet the needs of personalized inspections.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a substation joint special remote inspection method, comprising:

[0008] Obtain the substation environment and equipment status data through monitoring equipment, and determine whether to trigger the patrol task based on preset conditions;

[0009] When the triggering conditions are met, the collection device is selected and started to perform the patrol task;

[0010] The collection equipment performs patrols and collects equipment status and environmental data in real time;

[0011] Analyze the collected data to determine whether there are any abnormalities and generate a patrol report.

[0012] As a preferred solution of the substation joint special remote inspection method described in the present invention, the preset conditions include regular daily inspections and special inspections based on specific trigger conditions.

[0013] As a preferred solution of the substation joint special remote inspection method described in the present invention, the daily inspection is performed according to a predetermined schedule.

[0014] As a preferred solution of the substation joint special remote inspection method described in the present invention, the special inspection is triggered based on meteorological and environmental changes or special work requirements.

[0015] As a preferred solution of the substation joint special remote inspection method of the present invention, wherein: the triggering inspection task includes executing a first special inspection category for inspection when the special inspection is triggered by meteorological and environmental changes, and the first special inspection category includes flood prevention, mountain fire prevention, thunderstorm prevention, geological disaster prevention, and wind prevention;

[0016] When special inspections are triggered by special work requirements, the second special inspection category is carried out. The second special inspection category includes meeting the peak winter schedule, meeting the peak summer schedule, and ensuring power supply.

[0017] As a preferred solution of the substation joint special remote inspection method described in the present invention, the collection equipment includes a camera, a drone and a robot.

[0018] As a preferred solution of the substation joint special remote inspection method of the present invention, wherein: the execution of the inspection task includes starting the special inspection task based on the inspection task type, determining the special training project to perform the inspection operation;

[0019] Select the collection equipment according to the selected special patrol project;

[0020] Generate patrol areas based on the actual situation of the substation and patrol preset points.

[0021] Another object of the present invention is to provide a substation joint special remote inspection system, which can solve the problems of low efficiency, untimely fault detection and insufficient task flexibility in existing remote inspections by constructing a substation joint special remote inspection system, thereby improving the degree of automation of inspections and the flexibility of task scheduling.

[0022] To solve the above technical problems, the present invention provides the following technical solutions: a substation joint special remote patrol system, comprising: a patrol management module, an equipment scheduling module, a data acquisition module and an exception handling module; the patrol management module is used to obtain the environment and equipment status data of the substation through monitoring equipment, and judge whether to trigger the patrol task based on preset conditions; the equipment scheduling module is used to select and start the acquisition equipment to perform the patrol task when the trigger condition is met; the data acquisition module is used to collect equipment to perform patrols, and collect equipment status and environmental data in real time; the exception handling module is used to analyze the collected data, judge whether there is an abnormal situation, and generate a patrol report.

[0023] A computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned substation joint special remote inspection method when executing the computer program.

[0024] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the above-mentioned substation joint special remote inspection method.

[0025] Beneficial effects of the present invention: The substation joint special remote inspection method provided by the present invention can autonomously select independent inspection or multi-project joint inspection of video, drone, robot, and secondary equipment in one inspection task according to the inspection operation requirements;

[0026] When carrying out inspection tasks, two methods can be realized: manual immediate review and confirmation of key inspection points or review after the background inspection report is generated, so as to flexibly coordinate the management of inspection quality and human resources;

[0027] Automatically generate inspection reports. When manually reviewing the inspection reports, you can re-check questionable data, equipment defects, etc.

[0028] Automatically trigger new temporary operations based on environmental changes, grid risk changes, etc., and quickly carry out targeted special inspection operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0030] Figure 1 An overall flow chart of a substation joint special remote inspection method provided by an embodiment of the present invention.

[0031] Figure 2 An overall structural diagram of a substation joint special remote inspection system provided by an embodiment of the present invention.

[0032] Figure 3 A diagram of key environmental information of a substation joint special remote inspection method provided by an embodiment of the present invention.

[0033] Figure 4 A real-time operation status information diagram of a substation joint special remote inspection method provided by an embodiment of the present invention.

[0034] Figure 5 A dynamic inspection and maintenance project diagram of a substation joint special remote inspection method provided by an embodiment of the present invention.

[0035] Figure 6 A matching setting diagram of a substation joint special remote inspection method provided by an embodiment of the present invention.

[0036] Figure 7 A schematic diagram of a special patrol task of a substation joint special remote patrol method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0037] 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.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Example 1

[0040] Reference Figure 1 , as an embodiment of the present invention, provides a substation joint special remote inspection method, comprising:

[0041] S1 obtains the substation environment and equipment status data through monitoring equipment, and automatically determines whether to trigger the patrol task based on preset conditions;

[0042] S2 When the triggering conditions are met, the collection device is selected and started to perform the patrol task;

[0043] S3 acquisition equipment performs patrols and collects equipment status and environmental data in real time;

[0044] S4 collects equipment status and environmental data in real time, which can be manually reviewed online in real time, and the report can be reviewed after it is produced.

[0045] S5 analyzes the collected data, determines whether there are any abnormal conditions, and generates a patrol report.

[0046] The preset conditions include regular daily inspections and special inspections based on specific trigger conditions.

[0047] The daily inspections are performed according to a predetermined schedule.

[0048] It should be noted that in the substation operation profession, equipment inspections are divided into routine inspections and special inspections. Routine inspections have currently been realized through the substation production and operation support system and the secondary intelligent operation and maintenance platform on a regular basis through remote inspections, but there is currently no system to realize remote inspections for special inspections.

[0049] Daily inspection: Operation personnel shall inspect substation equipment and facilities according to the prescribed time and content to promptly discover hidden dangers and defects in the operation of equipment and facilities.

[0050] Special inspection: Inspection and maintenance for the following situations or phenomena: Heavy rain, mountain torrents, fire, thunder, earthquake, strong wind and other meteorological and environmental changes; Special tasks required by superiors to face the wind in winter, face the wind in summer, and ensure power supply.

[0051] Trigger conditions: the occurrence of meteorological and environmental changes such as heavy rain, mountain torrents, fire, thunder, earthquake, strong winds, etc.; special tasks such as weathering the winter and summer with the wind, and ensuring power supply required by superiors.

[0052] The special inspection is triggered based on meteorological and environmental changes or special work requirements.

[0053] The substation environment is monitored and a comprehensive analysis is automatically conducted through the "micro-meteorology" system (including but not limited to rainfall sensors, atmospheric pressure mutation sensors, temperature sensors, humidity sensors, wind speed sensors, etc.). When the trigger conditions are met, a special inspection plan is automatically established, the substations to be inspected are determined, and special inspection projects are selected.

[0054] It should be noted that special patrols are required according to the triggering conditions of meteorological and environmental changes, i.e., heavy rain, mountain torrents, fire, thunder, earthquake, strong wind, etc., and the special patrols are divided into five categories: flood control, mountain fire prevention, thunder protection, earthquake prevention, and wind prevention;

[0055] According to the triggering conditions of special work requirements (which can be realized according to the load of target equipment, comprehensive analysis of system flow, online infrared test conditions, automatic recognition of keywords, etc.), special work such as facing the wind in winter, facing the wind in summer, and ensuring power supply required by superiors occurs, and special patrol categories are divided into three categories: facing the wind in winter, facing the wind in summer, and ensuring power supply. Inspection projects are formulated for special patrol categories. Taking flood control as an example, special patrol projects are divided into leakage inspection, flooding inspection, equipment inspection, hidden danger inspection outside the station, wall, retaining wall and slope protection inspection, drainage facility inspection, and flood control and flood prevention material inspection.

[0056] The triggered patrol task includes executing a first special patrol category for patrol when the special patrol is triggered by meteorological and environmental changes. The first special patrol category includes flood prevention, mountain fire prevention, thunderstorm prevention, geological disaster prevention, and wind prevention;

[0057] When special inspections are triggered by special work requirements, the second special inspection category is carried out. The second special inspection category includes meeting the peak winter schedule, meeting the peak summer schedule, and ensuring power supply.

[0058] It should be noted that the special patrol requirements and patrol areas are determined based on the special training categories;

[0059] When the first special patrol category of flood control is triggered, the inspection items include water leakage inspection, waterlogging inspection, equipment inspection, hidden danger inspection outside the station, fence, retaining wall and slope protection inspection, drainage facility inspection, and flood control material inspection;

[0060] When the special patrol category is flood prevention and control, the special patrol requirements include carefully observing whether there are water marks, peeling or deformation on the walls, floors, ceilings and other surfaces inside and outside the room. Pay special attention to whether there are signs of water stains, mildew, moisture, etc., and focus on observing whether there are water drops on the operating equipment. The patrol area is the roof;

[0061] When the special patrol category is flooding inspection, the special patrol requirements include checking whether there is water accumulation on the roof, basement, transformer oil drain tank, and cable trenches and cable tunnels. The patrol area is the outdoor area and cable mezzanine;

[0062] When the special inspection category is equipment inspection, the special inspection requirements include checking whether the rain covers of circuit breakers, gas relays and other equipment are fastened to ensure that the equipment is protected from rainwater intrusion; checking whether the doors of outdoor equipment such as terminal boxes and mechanism boxes are tightly closed and well sealed, and whether the inside is damp; checking whether the wall bushings are sealed and leak-free. The inspection area is outdoor equipment;

[0063] When the special inspection category is off-station hidden danger inspection, the special inspection requirements include whether there are rivers, reservoirs and other water sources where flash floods may scour the substation, whether there are water diversion channels and whether the off-station drainage facilities are normal and free of water accumulation. The inspection area is the adjacent perimeter of the substation;

[0064] When the special inspection category is fences, the special inspection requirements include whether the fences, retaining walls, and slopes have settled, tilted, cracked, damaged, or been washed away by floods;

[0065] When the special inspection category is the inspection of retaining walls and slope protection, the special inspection requirements include whether the walls, retaining walls and slope protection have settled, tilted, cracked, damaged or been washed away by floods;

[0066] When the special inspection category is drainage facility inspection, the special inspection requirements include whether the sewers and drains are unobstructed, whether the sewers and drains are damaged or cracked, whether the flood prevention measures are intact and whether the water pumps are operating normally;

[0067] When the special patrol category is flood control and relief material inspection, the special patrol requirements include whether the necessary flood control equipment and materials are stored and whether the flood control materials are placed at fixed values.

[0068] When the first special patrol category, wildfire prevention, is triggered, the inspection items include the substation wall perimeter environment and the extension direction of the transmission lines in the outgoing line interval within the station;

[0069] When the special patrol category is the substation wall perimeter environment, the special patrol requirements include fire conditions, fire intensity, distance, burning materials and development trends. The patrol area is the flammable and combustible materials within the "bell mouth" range of the outgoing line interval;

[0070] When the special patrol category is the extension direction of the transmission line in the station outgoing line interval, the special patrol requirements include the fire situation, fire intensity, distance, burning materials and development trend. The patrol area is the transmission line, tower, and forest area under the line channel.

[0071] When the lightning protection in the first special inspection category is triggered, the inspection items include the appearance of the lightning arrester in each equipment interval, the lightning arrester leakage current monitor (counter), and the lightning arrester in the extension direction of the transmission line in the outgoing line interval, and the suspension insulator string;

[0072] When the special inspection category is the appearance of each equipment interval lightning arrester, the special inspection requirements include no damage and discharge marks on the bushing, no broken strands and discharge marks on the conductor; no flashover on the external insulation, no discharge marks on the surface and other abnormalities; no discharge marks on the neutral point gap discharge rod, no damage and oil leakage on the neutral point TA. The inspection area is the entire station lightning arrester and its ancillary facilities and the neutral point equipment of the main transformer;

[0073] When the special patrol category is the arrester leakage current monitor (counter), the special patrol requirements include leakage current, correct display of the number of actions, and no abnormal actions, and the patrol area is the arrester counter;

[0074] When the special inspection category is the lightning conductor and suspension insulator string in the extension direction of the outgoing line interval transmission line, the special inspection requirements include no flashover of the external insulation, no discharge marks on the surface and other abnormalities. The inspection area includes the transmission line, gantry frame, suspension insulator string, lightning conductor, lightning rod, etc.

[0075] When the first special inspection category of geological disaster prevention is triggered, the inspection items include the main equipment room roof, wall, main appearance of each building, primary equipment frame foundation, grounding, panel cabinet appearance and foundation, porcelain column post insulator, suspension insulator string, hardware, oil injection equipment, primary gas injection equipment air chamber connection part, primary equipment soft connection, pneumatic mechanism, hydraulic mechanism and other pressure equipment pipelines, pressure gauges, busbars, overall appearance of conductors and switch field cable trenches, walls and other site conditions;

[0076] When the special inspection category is the roof and wall of the main equipment room, the special inspection requirements include whether the building is damaged, whether the top and wall are cracked, collapsed, or the wall skin is peeling off, whether the dropped objects affect the normal operation of the equipment, and the inspection area is the secondary equipment room such as the main control room, protection room, control room, and the primary equipment room such as the high-voltage room, main transformer room, station transformer room, and reactive equipment room;

[0077] When the special inspection category is the main exterior of each building, the special inspection requirements include whether the building facade has cracks, collapses, falls off and other hidden dangers, and the inspection area is all the main buildings in the station;

[0078] When the special inspection category is the foundation and grounding of the primary equipment frame, the special inspection requirements include that the main body has no displacement, the oil pillow has no tilt or deformation, etc.; the grounding down conductor or grounding flat iron has no breakage; the foundation has no subsidence or cracking. The inspection area is the main transformer and its auxiliary equipment, circuit breakers, disconnectors, transformers, lightning arresters, capacitors, reactors, etc., as well as busbars, pillar insulators, gantry frames, etc.;

[0079] When the special inspection category is the appearance and foundation of the panel cabinet, the special inspection requirements include no foundation sinking, cracking and no displacement of the installation position. The inspection area is the high-voltage switch cabinet, secondary equipment cabinet and station AC and DC panel cabinet;

[0080] When the special inspection category is porcelain column post insulators, suspension insulator strings, and hardware, the special inspection requirements include inspection of the appearance of external insulating porcelain parts such as circuit breaker post porcelain bottles, arc extinguishing porcelain sleeves, break shunt capacitors, closing resistors, etc. There is no obvious visible creepage on the porcelain skirt. The inspection area is busbars, post insulators, suspension insulator strings, gantry frames, etc.

[0081] When the special inspection category is oil-filled equipment, the special inspection requirements include no oil leakage and normal oil level. The inspection area includes main transformers, station transformers, oil-immersed transformers and other oil-filled equipment, hydraulic mechanism circuit breakers, hydraulic transmission equipment, etc.;

[0082] When the special inspection category is the gas chamber connection part of the primary gas injection equipment and the soft connection of the primary equipment, the special inspection requirements include that the expansion joint and its transition connection should be intact, the frame should not be displaced, and the soft connection should be properly stretched and relaxed, without broken strands, loose strands, too tight or too loose. The inspection area is the complete set of combined electrical equipment, the connection part between the hard busbar and the wire, and the rotating parts of the equipment such as disconnectors and circuit breakers;

[0083] When the special inspection category is the pneumatic mechanism, hydraulic mechanism and other pressure equipment pipelines and pressure gauges, the special inspection requirements include checking that the number of pressure tests on the hydraulic and pneumatic operating mechanisms should not increase, the oil level and pressure value of the mechanism box should be normal, there should be no oil leakage, and record the relevant inspection data. The inspection area is the circuit breaker pneumatic mechanism, hydraulic mechanism and control cabinet;

[0084] When the special inspection category is the overall appearance of busbars and conductors, the special inspection requirements include no broken strands, loose strands, too tight or too loose strands; the transition connection should be intact; the rigid busbar should not be deformed or bent; there should be no cracks on the terminal board, and there should be no broken strands on the drainage wire. The inspection area is tubular busbars, rigid busbars, overhead conductors, overhead busbars and primary equipment connecting conductors and drainage wires;

[0085] When the special inspection category is the switchyard cable trench, fence and other site conditions, the special inspection requirements include no collapse or cracking, and the inspection area is the substation site;

[0086] When the first special inspection category of wind protection is triggered, the inspection items include the primary equipment connection conductor, the swing amplitude of the down conductor, the swing amplitude of the transmission line extension direction of the outgoing line interval in the station, the swing amplitude of the trees adjacent to the primary equipment inside and outside the station, the panoramic floating objects in the outdoor switch yard, and the hidden dangers of the mobile cabins, billboards, vegetable greenhouses around the substation;

[0087] When the special patrol category is the swing amplitude of the primary equipment connection conductor and down conductor, the special patrol requirements include the swing amplitude meeting the safety distance requirements;

[0088] When the special patrol category is the swing amplitude in the extension direction of the transmission line in the station outgoing line interval, the special patrol requirements include the swing amplitude meeting the safety distance requirements;

[0089] When the special patrol category is the swing amplitude of trees adjacent to primary equipment inside or outside the station, the special patrol requirements include the swing amplitude meeting the safety distance requirements;

[0090] When the special patrol category is outdoor switchyard panoramic floating objects, the special patrol requirements include no foreign objects on the busbars and conductors, and the patrol area is the outdoor switchyard;

[0091] When the special inspection category is hidden dangers such as prefabricated houses, billboards, and vegetable greenhouses around the substation, the special inspection requirements include that the temporary structures must not show obvious signs of looseness, shaking, or being blown away by the wind, and the inspection area is the adjacent perimeter of the substation;

[0092] When the second special patrol category in the peak winter season is triggered, the special patrol category includes load, temperature, mode adjustment three-link triggering, infrared thermal imaging of primary equipment, operation of main transformer cooler (fan, submersible oil pump), working condition of indoor HVAC equipment, ice and snow covering of outdoor equipment, oil level, oil pressure, air pressure, leakage of oil injection and gas injection equipment, working condition of ice melting equipment, and swing and bounce of overhead wires during de-icing;

[0093] When the special inspection category is infrared thermal imaging of primary equipment, the special inspection requirements include that the temperature measurement of the main body, lead wires and terminal piles is normal, and the inspection area is the main transformer, circuit breaker, mutual inductor, disconnector, busbar, conductor and its auxiliary electrical primary equipment;

[0094] When the special inspection category is the operation of the main transformer cooler (fan, submersible oil pump), the special inspection requirements include checking that the cooler is operating normally, and the inspection area is the main transformer, high-voltage room, high-voltage switchgear, etc.;

[0095] When the special inspection category is the working condition of indoor HVAC equipment, the special inspection requirements include that the operation of the ventilation equipment in the high-voltage room and the main transformer room is consistent with the ambient temperature and equipment temperature and works normally; the air conditioning dehumidification function is normal and the temperature is appropriate. The inspection areas are the high-voltage room, the main transformer room ventilation equipment and the main control room, protection room, high-voltage room, and the communication room air conditioner;

[0096] When the special inspection category is the situation of outdoor equipment covered with ice and snow, the special inspection requirements include no flashover of external insulation, no discharge marks on the surface and other abnormalities; the oil level should be normal, without oil leakage; the appearance of external insulation porcelain parts such as support porcelain bottles, arc extinguishing porcelain sleeves, fracture shunt capacitors, closing resistors, etc. should be inspected, and there should be no obvious creepage on the porcelain skirts. The inspection area is the main electrical circuit part of the outdoor equipment;

[0097] When the special inspection category is oil level, oil pressure, air pressure and leakage of oil and gas injection equipment, the special inspection requirements include that the number of times of hydraulic and pneumatic operating mechanism pressure should not increase, the oil level and pressure value of the mechanism box should be normal, and there should be no oil leakage. The inspection area is SF6 equipment (circuit breakers, mutual inductors, transformers, combined electrical appliances, etc.), hydraulic mechanisms, pneumatic mechanism equipment, oil-immersed transformers and oil-immersed mutual inductors;

[0098] When the special inspection category is the working condition of ice-melting equipment, the inspection area is the power transmission line and ice-melting equipment;

[0099] When the special inspection category is the swing and bounce of overhead wires during ice shedding, the inspection area is the transmission lines.

[0100] When the second special patrol category in the peak summer season is triggered, the special patrol category includes load, mode adjustment, meteorological change three-link triggering, infrared thermal imaging of primary equipment, operation of coolers (fans, submersible oil pumps), working conditions of indoor HVAC equipment, oil injection, oil level, oil pressure, air pressure, leakage of gas injection equipment, automatic verification of relay protection settings of all secondary equipment in the station, and automatic verification of hard pressure plates of all secondary equipment in the station;

[0101] When the special inspection category is infrared thermal imaging of primary equipment, the special inspection requirements include that the temperature measurement of the main body, lead wires and terminal piles is normal, and the inspection area is the main transformer, circuit breaker, mutual inductor, disconnector, busbar, conductor and its auxiliary electrical primary equipment;

[0102] When the special inspection category is the operation of the cooler (fan, submersible oil pump), the special inspection requirements include checking that the cooler is operating normally, and the inspection areas are the main transformer, high-voltage room, high-voltage switchgear, etc.;

[0103] When the special inspection category is the working condition of indoor HVAC equipment, the special inspection requirements include that the operation of the ventilation equipment in the high-voltage room and the main transformer room is consistent with the ambient temperature and equipment temperature, that it is working normally, that the air conditioning and dehumidification functions are normal, and that the temperature is appropriate. The inspection areas are the ventilation equipment in the high-voltage room and the main transformer room, and the air conditioners in the main control room, protection room, high-voltage room, and communication room;

[0104] When the special inspection category is oil level, oil pressure, air pressure and leakage of oil and gas injection equipment, the special inspection requirements include that the number of times of hydraulic and pneumatic operating mechanism pressure should not increase, the oil level and pressure value of the mechanism box should be normal, and there should be no oil leakage. The inspection area is SF6 equipment (circuit breakers, mutual inductors, transformers, combined electrical appliances, etc.), hydraulic mechanisms, pneumatic mechanism equipment, oil-immersed transformers and oil-immersed mutual inductors;

[0105] When the special patrol category is automatic checking of relay protection setting values ​​of all station secondary equipment, the special patrol requirements include that all secondary equipment shall be executed in accordance with the relay protection setting value notification form issued by dispatchers at all levels, and operate in the corresponding setting value area according to the operation mode requirements. The patrol area is all station secondary equipment;

[0106] When the special patrol category is automatic verification of the hard pressure plates of all secondary equipment in the station, the special patrol requirements include that the insertion and withdrawal of the hard pressure plates of the secondary equipment are in compliance with the current operating mode requirements, and the patrol area includes the hard pressure plates and switching handles of all secondary equipment in the station.

[0107] When the power supply protection in the second special patrol category is triggered, the special patrol category includes infrared temperature measurement of primary equipment in the power supply protection interval, operating status of secondary equipment in the power supply protection interval, status of secondary hard pressure plate in the power supply protection interval, meter readings of various equipment in the power supply protection interval, load status of the power supply protection interval, automatic verification of relay protection setting values ​​of power supply protection equipment, and AC and DC systems used in stations;

[0108] When the special inspection category is infrared temperature measurement of primary equipment during power supply interval, the special inspection requirements include that the primary wiring terminals, body, wires and auxiliary facilities of the equipment have no abnormal heating and if there is a heating defect, it is necessary to confirm whether there is a further development trend;

[0109] When the special patrol category is the secondary equipment operating status of the power supply interval, the special patrol requirements include that the device has no abnormal alarm signal and the secondary components and terminals of the control box are normal;

[0110] When the special patrol category is the secondary hard pressure plate state of the power supply interval, the special patrol requirements include no abnormal alarm signal of the device;

[0111] When the special patrol category is to ensure the readings of various meters of the power supply interval equipment, the special patrol requirements include normal readings of pressure value, action value, oil level, ammeter, voltmeter, etc.;

[0112] When the special patrol category is to ensure the power supply interval load situation, the special patrol requirements include whether it may cause equipment heavy and overload conditions;

[0113] When the special patrol category is automatic checking of relay protection settings of power supply equipment, the special patrol requirements include that the protection settings are implanted according to the relay protection setting notification sheet, and the operation setting area complies with the operation mode requirements;

[0114] When the special patrol category is the station AC and DC system, the special patrol requirements include the normal operation of the station AC and DC systems, the absence of abnormal alarm signals, the automatic transfer device of the backup power supply conforming to the operating mode requirements, the normal charging of the device, the correct insertion and withdrawal of the pressure plate, and the patrol area includes DC charging devices, battery packs, UPS devices, station backup power supply automatic transfer devices, and ATS devices.

[0115] The acquisition equipment includes cameras, drones and robots.

[0116] The execution of the inspection task includes initiating a special inspection task based on the inspection task type and determining a special training project to perform the inspection operation;

[0117] Select the collection equipment according to the selected special patrol project;

[0118] Generate patrol areas based on the actual situation of the substation and patrol preset points.

[0119] It should be noted that according to the inspection plan, a special inspection task is initiated, and the system will automatically carry out inspection operations and inspect the preset points. During the inspection, the cameras at the preset points will be automatically captured, and an inspection report will be uniformly produced after the inspection is completed.

[0120] Review the inspection report generated, check the status of equipment, facilities, and environment, extract abnormal points and report them, and wait for the next step to deal with them. Check the special piece of the inspection report produced to check if there are any abnormalities.

[0121] It is necessary to collect multiple photos of each point, and the algorithm compares different photos of the same point. The ones confirmed as normal by the operating personnel during the review process are the standard values. Different photos are compared and analyzed with the standard values, and the points with differences from the standard values ​​are regarded as abnormal points. The abnormal points are manually confirmed as normal points and marked as normal points next time. The abnormal points are confirmed as abnormal points and marked as abnormal points next time.

[0122] The training is based on the images generated after multiple inspections, and comparative analysis is performed under different lighting and time. After multiple trainings, uncertain anomalies are removed and normal and abnormal judgment criteria are added.

[0123] Example 2

[0124] Reference Figure 2 , as an embodiment of the present invention, provides a substation joint special remote inspection system, including:

[0125] Patrol management module 100, equipment scheduling module 200, data acquisition module 300 and exception handling module 400;

[0126] The patrol management module 100 is used to obtain the environment and equipment status data of the substation through monitoring equipment, and determine whether to trigger the patrol task based on preset conditions;

[0127] The device scheduling module 200 is used to select and start the collection device to perform the patrol task when the trigger condition is met;

[0128] The data collection module 300 is used to collect equipment patrol data and collect equipment status and environmental data in real time;

[0129] The exception handling module 400 is used to analyze the collected data, determine whether there is an abnormal situation, and generate a patrol report.

[0130] Example 3

[0131] An embodiment of the present invention is different from the first two embodiments in that:

[0132] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. 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 methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0133] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0134] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0135] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0136] Example 4

[0137] Reference Figure 3-Figure 7 , which is an embodiment of the present invention, provides a substation joint special remote inspection method. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0138] like Figure 3 As shown, by adding auxiliary sensing devices to the substation, key environmental information such as temperature and humidity, air pressure, rainfall, and water immersion status of the substation can be collected independently. The system supports operators to set alarm thresholds according to the actual environmental conditions of the specific plant. When the data collected by the sensor reaches the threshold, it will actively push alarm information to the on-duty personnel in the form of system alarms and SMS reminders.

[0139] like Figure 4 As shown, the system is connected to the real-time dispatching data and can obtain the equipment alarm information in the station and the quasi-real-time operating status information of the primary equipment.

[0140] like Figure 5 As shown, the substation operating personnel configure corresponding dynamic patrol maintenance items for each plant and station based on the categories, triggering conditions and work requirements of dynamic patrol maintenance in the substation equipment operating procedures and the actual conditions of the plant and station.

[0141] like Figure 6 As shown, during the configuration of the monitoring camera points within the station, the operating personnel name the camera monitoring points involved in the special inspection according to the standard naming conventions. During the configuration of the special inspection projects for specific plants and stations, they can quickly perform matching settings and complete the binding of the camera points with the inspection projects.

[0142] The system realizes the linkage between the threshold alarm of the auxiliary device and the remote patrol function by setting different alarm levels through thresholds. When the triggered alarm level reaches the point where a special patrol is required, the system will automatically initiate a multi-station special joint patrol according to the alarm rule configuration. Multiple stations will automatically conduct remote patrols at the same time according to the configuration. The patrol results include video capture data, auxiliary device collection data, primary equipment operation status data, and pressure plate status data.

[0143] like Figure 7 As shown in the figure, the system is connected to the alarm data of the dispatching in one area. When the tripping alarm in the station is received, the alarm information is displayed in real time on the system and the on-duty personnel are notified by SMS. At the same time, the system can independently carry out tripping inspections at the first time based on the configuration rules. The content of the inspection report includes the real-time operation status information of the dispatching related to the tripping equipment, pictures of the status indicator devices of key equipment, the environmental information of the plant and the environmental status information of each area.

[0144] After the special inspection is completed, the operating personnel can view the video data of the relevant in-station cameras used in the inspection online on the system based on the special inspection report, support video playback, and improve the efficiency of problem handling and timely review.

[0145] This embodiment is applied in a pilot project of a company in the 110kV Tanhua Temple transformer substation. Through joint inspections, the efficiency of personnel inspections has been improved by more than 300%, and the timeliness of inspections has been improved by 120%. Previously, equipment and environmental abnormalities such as heavy overloads, earthquakes, and heavy rains were mainly detected and warned through manual inspections. Monitoring was mainly passively discovered through the dispatching automation system to check the flow, OCS data, and meteorological information. Combined with equipment records and equipment parameter information, the equipment health monitoring indicators such as the thermal overload life of the main transformer were manually calculated, and the treatment was carried out based on manual experience. There was a lack of state perception. After the multi-station joint inspection system was adopted, spontaneous inspections of abnormal states and automatic analysis of inspection results were realized. After the inspection was completed, the report results were pushed through APP and SMS, which reduced the pressure on substation operation and maintenance, greatly improved the operation and maintenance efficiency, and reduced the difficulty of operation and maintenance.

[0146] At present, the active defense joint inspection function has been promoted and applied to more than 240 substations in a certain power supply bureau, and more than 200 joint inspection reports have been formed through active warning. As a practical and innovative technical means, the substation multi-station joint inspection system has played a vital role in the intelligent development and digital transformation of substations, and has great application potential and promotion value in building new power systems. The system uses sensors and digital information warning technology to conduct active inspections of substation equipment and facilities, so that the inspection of substations is transformed from manual initiation to active warning of sensors and digital information, providing timely and accurate decision-making support for operators, which can not only greatly improve operation and maintenance efficiency and reduce maintenance costs, but also provide rapid response and intelligent decision-making support when the power system faces various complex operating environments, and enhance the active defense capability of the power system. The system can effectively improve the stability, safety and reliability of the power system, reduce the risk of failure, extend the life of equipment, and reduce maintenance costs. It can be fully promoted to substations, transmission lines, and expand the inspection area, and transform the manual inspection of multiple people, multiple stations, multiple lines, and multiple reports into active defense inspections of single people, multiple stations, multiple lines, and single reports.

[0147] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A substation joint special remote inspection method, characterized in that: include: Obtain the substation environment and equipment status data through monitoring equipment, and determine whether to trigger the patrol task based on preset conditions; When the triggering conditions are met, the collection device is selected and started to perform the patrol task; The collection equipment performs patrols and collects equipment status and environmental data in real time; Analyze the collected data to determine whether there are any abnormalities and generate a patrol report.

2. The substation joint special remote inspection method according to claim 1, characterized in that: The preset conditions include regular daily inspections and special inspections based on specific trigger conditions.

3. The substation joint special remote inspection method according to claim 2, characterized in that: The daily inspections are performed according to a predetermined schedule.

4. The substation joint special remote inspection method according to claim 3 is characterized in that: The special inspection is triggered based on meteorological and environmental changes or special work requirements.

5. The substation joint special remote inspection method according to claim 4, characterized in that: The triggered patrol task includes executing a first special patrol category for patrol when the special patrol is triggered by meteorological and environmental changes. The first special patrol category includes flood prevention, mountain fire prevention, thunderstorm prevention, geological disaster prevention, and wind prevention; When special inspections are triggered by special work requirements, the second special inspection category is carried out. The second special inspection category includes meeting the peak winter schedule, meeting the peak summer schedule, and ensuring power supply.

6. The substation joint special remote inspection method according to claim 5, characterized in that: The acquisition equipment includes cameras, drones and robots.

7. The substation joint special remote inspection method according to claim 6, characterized in that: The execution of the inspection task includes initiating a special inspection task based on the inspection task type and determining a special training project to perform the inspection operation; Select the collection equipment according to the selected special patrol project; Generate patrol areas based on the actual situation of the substation and patrol preset points.

8. A system using the substation joint special remote inspection method as claimed in any one of claims 1 to 7, characterized in that: include: A patrol management module (100), an equipment scheduling module (200), a data acquisition module (300) and an exception handling module (400); The patrol management module (100) is used to obtain the environment and equipment status data of the substation through monitoring equipment, and determine whether to trigger a patrol task based on preset conditions; The device scheduling module (200) is used to select and start the collection device to perform the patrol task when the trigger condition is met; The data collection module (300) is used to collect equipment patrol data and collect equipment status and environmental data in real time; The abnormality processing module (400) is used to analyze the collected data, determine whether there is an abnormality, and generate a patrol report.

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 substation joint special remote inspection method described in 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 substation joint special remote inspection method described in any one of claims 1 to 7 are implemented.

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