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CN-121258345-B - Substation operation scheme compiling method based on three-dimensional model

CN121258345BCN 121258345 BCN121258345 BCN 121258345BCN-121258345-B

Abstract

The invention discloses a three-dimensional model-based substation operation scheme compiling method, which relates to the technical field of electric power operation and maintenance and comprises the steps of collecting multi-source data, constructing a three-dimensional digital twin body, accessing real-time data to form a digital twin platform, inquiring maintenance tasks, carrying out text structuring treatment to form a maintenance equipment set, carrying out special analysis and providing special analysis results, displaying maintenance scenes in the digital twin platform, generating and outputting maintenance operation schemes, returning on-site maintenance data after maintenance operation is finished, and updating the digital twin platform data. According to the invention, by constructing the three-dimensional digital twin body synchronously mapped and dynamically updated with the transformer substation, the overhaul operation scheme is compiled based on the real-time on-site state, the problems of static display and on-site disconnection of the traditional three-dimensional visual system are solved, the traditional steps which depend on manual experience and are tedious and error-prone are converted into automatic algorithm calculation, the time required by special analysis generation is greatly reduced, and the operation and maintenance cost is reduced.

Inventors

  • PENG HONGZHAO
  • LI LI
  • LI WEI
  • GAO QI
  • CHEN YU
  • NIE DAN
  • HUANG YUHUI
  • JIANG WENYAN
  • WANG JIANXU
  • ZHOU XUMIN
  • ZHANG ZUQI
  • SONG JIAN
  • Lin Rongfei

Assignees

  • 国网江西省电力有限公司信息通信分公司

Dates

Publication Date
20260512
Application Date
20251205

Claims (8)

  1. 1. The method for compiling the operation scheme of the transformer substation based on the three-dimensional model is characterized by comprising the following steps of: S1, collecting and fusing multi-source data of a transformer substation, constructing a three-dimensional digital twin body, and accessing real-time data to form a digital twin platform supporting multi-terminal interaction; S2, inquiring the maintenance task, analyzing key information in the maintenance task, extracting the key information, carrying out text structuring treatment, matching corresponding equipment nodes in the digital twin platform through equipment IDs, forming a maintenance equipment set, and outputting maintenance constraint conditions; S3, performing special analysis on the overhaul equipment set in the digital twin platform, and providing special analysis results, wherein the special analysis comprises remote survey quantification, power outage scope topology analysis, safety measure previewing and vehicle path planning; S4, fusing the special analysis results, superposing environmental factors, displaying an overhaul scene in the digital twin platform, and generating and outputting an overhaul operation scheme; s5, returning field maintenance data after maintenance operation is finished, and updating digital twin platform data; the digital twin platform comprises a sensing layer, a twin layer, an algorithm layer and an interaction layer, wherein the sensing layer consists of a laser radar module and an oblique photography module and is used for collecting original data of a transformer substation, the twin layer comprises an equipment node coding module, a time sequence caching module and a real-time data mapping module, the twin layer is used for distributing unique identifiers to each equipment through equipment node coding, and associating equipment real-time operation data and environment data to a three-dimensional digital twin body in combination with real-time data mapping, the algorithm layer comprises a remote surveying module, a power failure analysis module, an safety measure previewing module, a vehicle path module and a deviation calculation module and is used for carrying out special analysis on a maintenance equipment set, the interaction layer comprises a three-dimensional roaming module, a multi-image layer stacking module, a scheme packaging module and a version evolution module and is used for receiving and outputting data and instructions and providing operation functions for users, and the digital twin platform is provided with a connection port for realizing data access operation of a weather API, a power grid resource middle station and a defect library; the step S3 specifically includes: s3-1, performing remote survey quantization operation, and calculating horizontal distance, vertical distance and spatial distance in the three-dimensional digital twin body in real time; s3-2, performing topology analysis operation of a power outage range, inputting the topology analysis operation into a primary wiring diagram adjacent matrix, calculating a power outage region and a power outage region by adopting a connected subgraph algorithm, and prompting compliance of the power outage region; s3-3, performing safety measure previewing operation, generating a three-dimensional virtual fence from an electrified boundary, and generating a safety measure layout comprising the coordinates, the length, the position and the orientation of a signboard of the fence; S3-4, performing vehicle path planning operation, constructing a passable network, planning and generating the shortest collision-free path, performing turning radius and safety distance verification, and outputting a vehicle posture sequence with a time stamp, wherein the passable network comprises a road center line, height limiting data and obstacle data; The step S3-2 specifically comprises the following steps: Taking a primary wiring diagram adjacent matrix as input, wherein the adjacent matrix is The square matrix of the matrix, For the total number of nodes in a primary wiring diagram, if the matrix element Representing nodes Node There being direct electrical connection between, if matrix elements Representing nodes And node No direct connection exists between the two; Calculating to obtain a power failure area and a charged area by adopting a connected sub-graph algorithm and combining the on-off state of a device switch, wherein the power failure area is a node set which is not connected with all power supplies, and the charged area is a node set which is still connected with the power supplies; and carrying out compliance verification on the outage area, judging compliance through three indexes of internal connectivity, ring network isolation and scale limitation, wherein the internal connectivity is realized by generating an outage area induction subgraph and detecting connectivity of the outage area, the ring network isolation is realized by judging whether the outage area and the electrified area form a loop or not, the scale limitation is realized by comparing the number of nodes of the outage area with a preset threshold value, and an alarm is triggered if any one check is not passed.
  2. 2. The method for compiling a substation operation plan based on the three-dimensional model according to claim 1, wherein the step S1 specifically includes: S1-1, scanning the whole transformer substation domain by combining a laser point cloud with an acquisition mode of oblique photography to generate high-density point cloud data, performing GIS coordinate registration operation based on the high-density point cloud data, and unifying the point cloud data, image data and wiring diagrams into the same coordinate system; s1-2, when a three-dimensional digital twin body is constructed, performing gridding, LOD light weight and WebGL loadable processing operation on the three-dimensional entity, performing equipment node coding, and generating a unique ID for each equipment as a data anchor point; S1-3, accessing real-time measurement center data through a gateway, wherein the real-time measurement center data comprise real-time power, temperature, defects, hidden dangers and historical maintenance work orders, and constructing an equipment defect library according to the defects and the historical maintenance work orders; s1-4, the digital twin platform interacts with a webpage end and a mobile end, and supports the webpage end and the mobile end to be checked in a visual mode.
  3. 3. The method for compiling a substation operation plan based on the three-dimensional model according to claim 1, wherein the step S2 specifically includes: S2-1, inquiring and acquiring a task ID, a power failure period, an equipment list and a three-measure-in-one document of an overhaul task, wherein the three-measure-in-one document comprises organization measures, technical measures, safety measures and an operation scheme; s2-2, performing segmentation operation on a task text of the overhaul task, acquiring key information, and generating a structured text according to a text format template; S2-3, inquiring equipment nodes corresponding to the equipment IDs one by one in the digital twin platform to form an overhaul equipment set with coordinates; and S2-4, outputting maintenance constraint conditions, wherein the maintenance constraint conditions comprise a maintenance equipment set, a time axis, a procedure template and a tool list.
  4. 4. The method for compiling a substation operation plan based on the three-dimensional model according to claim 1, wherein the step S3-1 specifically comprises: inputting two three-dimensional measuring points And , For measuring the starting point, the coordinates are , To measure the endpoint, the coordinates are Detection of And If the measurement point is an effective measurement point, calculating a horizontal distance, a vertical distance and a space distance, and automatically triggering the shortest safety distance check when a measuring line connecting two effective three-dimensional measurement points crosses an electrified equipment area in a three-dimensional space; the formula for calculating the horizontal distance is: ; the formula for calculating the vertical distance is: ; the formula for calculating the spatial distance is: ; Wherein, the For the horizontal distance to be a horizontal distance, Is a vertical distance which is a distance from the bottom of the container, In order to be a spatial distance from each other, Respectively two three-dimensional measuring points are at The difference in coordinates on the axis is calculated, , , 。
  5. 5. The method for compiling a substation operation plan based on the three-dimensional model according to claim 1, wherein the step S3-3 specifically comprises: respectively at the surrounding boxes according to the charged equipment Minimum value and maximum value parameters on the shaft and preset safe outward expansion distance, calculating two-dimensional outward expansion corner points, and enabling the two-dimensional outward expansion corner points to be along Shaft lifting preset height Obtaining a three-dimensional virtual fence node sequence, and generating a closed three-dimensional virtual fence; Calculating the total length of the three-dimensional virtual fence by accumulating Euclidean distances of adjacent nodes by adopting a linear approximation method, uniformly dividing the fence, arranging a signboard at the midpoint of the length of each section of fence, determining the position and the orientation of the signboard, and generating an safety measure layout comprising the coordinates, the length and the position and the orientation of the signboard of the fence; Traversing any node in the three-dimensional virtual fence, checking whether the distance from the node to the electrified equipment meets a safety threshold, if not, storing the nodes which do not meet the safety threshold into an alarm set, and triggering an alarm.
  6. 6. The method for compiling a substation operation scheme based on the three-dimensional model according to claim 1, wherein the step S3-4 specifically comprises: screening a feasible node set with the node height being more than or equal to the lowest height of the vehicle and the distance from the node to the obstacle being more than or equal to the safety distance threshold of the vehicle, and constructing a passable network comprising a road center line, height limiting data and obstacle data by screening a feasible edge set with the edge length being more than or equal to the minimum turning radius of the vehicle and without intersection of an edge connecting line and the obstacle; solving a shortest collision-free path from a starting point to an ending point in a passable network, wherein the shortest collision-free path meets a minimum turning radius and a safe distance threshold value of a vehicle; And taking the first node moment as a reference, distributing a time stamp for a path node according to the vehicle speed, and generating a vehicle gesture sequence of the running track with the time stamp, wherein the vehicle gesture sequence comprises node space coordinates, vehicle quaternion orientations and corresponding moments.
  7. 7. The method for compiling a substation operation plan based on the three-dimensional model according to claim 1, wherein the step S4 specifically includes: s4-1, performing real-time superposition operation of layers in any three-dimensional scene displayed by a digital twin platform, wherein the layers comprise a survey map, a power failure range map, an safety measure layout map and a vehicle route map; S4-2, performing environment superposition operation on the same three-dimensional scene after the real-time superposition of the layers, wherein the environment comprises real-time weather, a distribution diagram to be overhauled and a risk level; And S4-3, generating a maintenance operation scheme through the digital twin platform, wherein the maintenance operation scheme comprises a structured three-phrase-one scheme, a work ticket, an operation ticket, a three-dimensional scene screenshot, a vector DWG (discrete wavelet transform) graph and an executable browsing file.
  8. 8. The method for compiling a substation operation plan based on the three-dimensional model according to claim 1, wherein the step S5 specifically includes: s5-1, returning field overhaul data through an inspection device, wherein the inspection device comprises a mobile terminal, an unmanned aerial vehicle and an inspection robot, and the field overhaul data comprises a GPS track, a photo and a defect elimination result; s5-2, mapping GPS tracks and photos to the digital twin platform one by one, and automatically refreshing a defect library and a ledger state of the device by the digital twin platform; s5-3, comparing the actual overhaul data with the overhaul operation scheme, and calculating deviation indexes of the actual overhaul data and the overhaul operation scheme to adjust path planning weights and safety thresholds of the follow-up overhaul operation scheme.

Description

Substation operation scheme compiling method based on three-dimensional model Technical Field The invention relates to the technical field of electric power operation and maintenance, in particular to a three-dimensional model-based substation operation scheme compiling method. Background The existing three-dimensional visualization system is usually remained in a static three-dimensional display stage or limited to single data source visualization, only a pre-established transformer substation or transmission line model can be presented, the model can not be driven to change in real time along with the working condition of the site, the three-dimensional visualization system is only connected with one of a PMS (permanent magnet synchronous motor) ledger, SCADA (supervisory control and data acquisition) telemetry or video streaming, so that the picture and the site are disjointed, once operators need to compare multi-source information such as loads, defects, weather and the like at the same time, the operation personnel need to switch back and forth among a plurality of screens, time and labor are consumed, and the system is not connected with real-time operation data, so that the model can not reflect dynamic changes such as real-time opening and closing of a switch, temperature of a disconnecting link, sag of a wire and the like. Meanwhile, the existing three-dimensional visualization system generally lacks a power failure topology verification and safety distance automatic checking function, when a dispatcher checks maintenance equipment on a picture, the system cannot automatically deduce an influence range, verify whether a dual-power user is missed or not, cannot perform three-dimensional positioning according to real-time coordinates of a charged part and an operator, and dynamically calculate risk values such as headroom, crossing, crane arm exhibition and the like. In summary, the existing three-dimensional visualization system does not form an integrated operation scheme programming system on a high-precision digital twin platform, namely a single line diagram is still required to be manually read and a user list is checked in a power failure range topology checking link, a safe distance real-time checking link is required to be visually checked by operators or a distance meter is carried for point-by-point measurement by experience, errors are large and efficiency is low, a crane and a bucket arm vehicle often memorize an approach by a driver in a vehicle path one-key planning link, the situation that the height is limited and the turning radius is insufficient is forced to turn back, a data write-back unit is required after operation, and maintenance results, defect photos and actual measurement distances cannot be automatically archived to the twin model, so that next round operation still needs repeated investigation. Based on the method, the transformer substation operation scheme programming method based on the three-dimensional model is provided, and the defects of the prior art scheme can be eliminated. Disclosure of Invention The invention aims to provide a three-dimensional model-based substation operation scheme programming method, which aims to solve the problem that an integrated operation scheme programming system is not formed by the existing three-dimensional visual system in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: a method for compiling a substation operation scheme based on a three-dimensional model specifically comprises the following steps: S1, collecting and fusing multi-source data of a transformer substation, constructing a three-dimensional digital twin body, and accessing real-time data to form a digital twin platform supporting multi-terminal interaction; S2, inquiring the maintenance task, analyzing key information in the maintenance task, extracting the key information, carrying out text structuring treatment, matching corresponding equipment nodes in the digital twin platform through equipment IDs, forming a maintenance equipment set, and outputting maintenance constraint conditions; S3, performing special analysis on the overhaul equipment set in the digital twin platform, and providing special analysis results, wherein the special analysis comprises remote survey quantification, power outage scope topology analysis, safety measure previewing and vehicle path planning; S4, fusing the special analysis results, superposing environmental factors, displaying an overhaul scene in the digital twin platform, and generating and outputting an overhaul operation scheme; s5, returning field maintenance data after maintenance operation is finished, and updating digital twin platform data; The digital twin platform comprises a perception layer, a twin layer, an algorithm layer and an interaction layer, wherein the perception layer consists of a laser radar module and an oblique photography