Digital twin-based method for performing source tracing on power supply path at important place

Abstract

Disclosed is a digital twin-based method for performing source tracing on a power supply path at an important place. In order to overcome the problems in the existing technology of requiring restoration of mapping of a single object in a digital space on the basis of the actual on-site situation, and requiring manual collection of data and mapping, which consumes time and labor, according to the present invention, digital twin scenarios are established at separate levels, a power supply path is constructed and refined on the basis of a signal-flow relationship between power topology and devices, and, when a device breaks down, source tracing is performed on a power supply path to determine the range of influence, said source tracing being rapid and accurate.

Description

A method for tracing power supply paths in important places based on digital twins Technical Field

[0001] The present invention relates to the field of power supply path tracing, and in particular to a power supply path tracing method for important places based on digital twins. Background Art

[0002] Regarding the power supply command work for major events, the traditional venue power supply path traceability guarantee dimension is not comprehensive enough, the equipment status monitoring scope is not comprehensive enough, and the power supply patrol and emergency repair task management and execution supervision and on-site penetration command efficiency need to be improved.

[0003] Conventional venue twin construction often uses an agile development model centered around actual on-site needs. On-site modeling requirements are often collected manually and through equipment, with detailed judgments made through human observation and empirical data. Reconstructing the mapping of a single object in digital space based on actual on-site conditions lacks interactive display between devices. When certain devices experience anomalies, it is difficult to trace the corresponding power supply path, thereby determining the node causing the failure and the scope of the impact. For example, a "power plant digital twin system" disclosed in Chinese patent literature, with publication number CN114926603A, includes a 3D scene layer for performing forward and reverse 3D design of the power plant to construct a digital power plant; a digital twin implementation layer for extracting 3D elements from the digital power plant, establishing mapping relationships between the 3D elements and the power plant identification system codes, configuring logical relationships between the mapped 3D elements, and coupling the 3D elements with multi-source power plant data based on the mapping and logical relationships to construct a digital twin power plant; and a presentation layer, which is interconnected with the digital twin implementation layer and is used to render and display the digital twin power plant. This solution needs to restore the mapping of a single object in digital space based on the actual situation on site. It requires manual data collection and mapping, which is time-consuming and labor-intensive, and lacks linkage between devices.

[0004] Summary of the Invention

[0005] The present invention mainly solves the problem that the existing technology needs to restore the mapping of a single object in the digital space according to the actual situation on site, which requires manual data collection and mapping, and is time-consuming and labor-intensive; it provides a power supply path tracing method for important places based on digital twins, establishes digital twin scenes in a hierarchical manner, constructs a complete power supply path based on the power topology and the signal flow relationship between the equipment, and traces the power supply path in the event of equipment failure to determine the scope of impact, and the tracing is quick and accurate.

[0006] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0007] A method for tracing the power supply path of important places based on digital twins includes the following steps:

[0008] S1: Establish corresponding two-dimensional digital twin scenes and three-dimensional digital twin scenes according to the actual regional scene classification;

[0009] S2: Obtain device information including IP addresses uploaded by each distribution network device from the control center of the corresponding area; assign the distribution network devices to corresponding spatial locations in the two-dimensional digital twin scene and the three-dimensional digital twin scene based on the monitoring device information;

[0010] S3: Connect each distribution network device according to the existing topology to form a preliminary power supply path. Control the distribution network devices to send marking instructions to the upstream distribution network devices. The distribution network devices send marking feedback to the control center to optimize and correct the preliminary power supply path to form several device power supply paths.

[0011] S4: When the distribution network equipment is abnormal, trace the power supply path where the distribution network equipment is located to determine the fault path and faulty equipment.

[0012] This solution establishes digital twin scenarios in a hierarchical manner, constructs and improves the power supply path based on the power topology and the signal flow relationship between devices, and traces the power supply path to determine the scope of impact when equipment fails. The traceability is quick and accurate.

[0013] Preferably, the two-dimensional digital twin scene is a two-dimensional regional scene; the two-dimensional regional scene includes the relative positions of various places in the region and the corresponding distribution network equipment in each place;

[0014] The three-dimensional digital scene is a three-dimensional place scene; the three-dimensional place scene includes the spatial position distribution of the corresponding distribution network equipment in each place.

[0015] Digital twin scenarios are constructed hierarchically, focusing on both macro-regional scenarios and specific site scenarios. This allows for macro-level monitoring of power supply relationships across the region, as well as targeted information monitoring of distribution network equipment within each scenario. These sites include switch stations, distribution rooms, stadiums, and box-type transformers.

[0016] Preferably, the step S2 includes the following process:

[0017] S201: Obtain device information uploaded by the distribution network device from the regional control center; the monitoring device information includes IP address, type, model, number and corresponding type of indicator parameters (such as the switch status, current value of the ammeter, etc.)

[0018] S202: Allocating the network distribution device to a corresponding location in the two-dimensional digital scene according to the IP address in the device information of the network distribution device;

[0019] S203: For the network distribution devices in each location, match the device type and number of the device information with the network distribution devices in the three-dimensional digital scene, and match the device information to the corresponding spatial position.

[0020] Digital twin scenarios are constructed hierarchically from the macro regional scenarios and specific location scenarios, which can monitor the power supply relationship of each power supply path in the region at a macro level and carry out targeted information supervision of the distribution network equipment in each scenario.

[0021] Preferably, the step S3 includes the following process:

[0022] S301: Obtain the corresponding distribution network topology map in the region from the regional control center, connect the distribution network devices in the digital scene according to the distribution network topology map, and obtain a preliminary power supply path;

[0023] S302: Acquire each terminal distribution network device in the preliminary power supply path, control each distribution network device to send a marking instruction to the upstream distribution network device, and the distribution network device sends a marking feedback to the control center after receiving the marking instruction;

[0024] S303: The control center collects tag feedback from each distribution network device and forms a topological connection relationship between distribution networks based on the tag feedback content;

[0025] S304: Compare the topological connection relationship of the marked feedback with the distribution network topology map, optimize and supplement the preliminary power supply path, and form several equipment power supply paths.

[0026] Combine the existing topology diagram with the topological connection relationship of information flow feedback to ensure the accuracy of the power supply path.

[0027] Preferably, the marking instruction is a tag whose name includes the unique number of the terminal distribution network device; the initial value of the marking instruction is 0;

[0028] The expression of the instruction flag is: flag(X), where X is the unique number of the terminal distribution network device;

[0029] After receiving the instruction tag sent by the downstream distribution network device, the distribution network device adds one to the value of the instruction tag to obtain the corresponding tag feedback;

[0030] The tag feedback is a tag whose name includes the unique number of the corresponding terminal distribution network device and the unique code of the distribution network device that sends the instruction tag;

[0031] The expression of flag feedback is flag(X_Y), where Y is the unique code of the distribution network device that sends the command flag;

[0032] The distribution network equipment aggregates all the tag feedback and sends it to the control center.

[0033] As a preference, the instruction tag is delivered in the following manner:

[0034] The terminal distribution network device sends a command tag with an initial value of 0 to the upstream distribution network device;

[0035] For the distribution network device that receives the instruction tag, the instruction tag is increased by one to form a tag feedback, and the instruction tag with the value increased by one is passed to the remaining distribution network devices that have not received the instruction tag and are connected to it;

[0036] The command tag is passed cyclically until all the network distribution devices have no objects to which the command tag can be passed.

[0037] The connection relationship between distribution network devices is determined through the transmission of information flow, which is used to improve the topology diagram and ensure the reliability of the power supply path.

[0038] As a preference, the control centers of the regions are classified according to the expressions of the marked feedback and arranged in descending order of values; and a plurality of groups of topological connection relationships are obtained;

[0039] Traverse all topological connection relationships to determine whether the same topological connection relationship exists in the preliminary power supply path; if so, remove the corresponding topological connection relationship; otherwise, proceed to the next step of new conflict judgment;

[0040] Determine whether the topological connection relationship conflicts with the existing preliminary power supply path. If so, remove the corresponding topological connection relationship; otherwise, form a device power supply path based on the topological connection relationship.

[0041] Preferably, the step S4 includes the following process:

[0042] S401: Collect and obtain device information uploaded by each distribution network device in real time, compare the indicator parameters in the device information with the corresponding threshold value, and determine whether the distribution network device is abnormal;

[0043] S402: When a distribution network device is abnormal, trace the power supply path of the device upward and determine the faulty power supply node based on the distribution network device status of each power supply node in the power supply path of the device;

[0044] S403: Determine the fault impact range based on the power supply paths of all devices associated with the faulty power supply node; locate the spatial position of the faulty device and perform power protection operations.

[0045] Visually display the scope of impact caused by equipment failure and provide clear and intuitive guidance for logistics and power supply guarantee.

[0046] Preferably, the upward tracing process specifically includes:

[0047] 1) If there is only one abnormal power supply path within the same time period, the upstream power supply node with the abnormal device in the power supply path is determined as the faulty power supply node;

[0048] 2) If there is more than one abnormal power supply path in the same time period, determine whether the abnormal power supply paths have the same power supply node;

[0049] If not, the most upstream power supply node with the abnormal device in the power supply path is determined as the faulty power supply node;

[0050] If it exists, the power supply node with the same path is extracted and the device information of the abnormal device in the corresponding power supply node is fed back;

[0051] 3) Determine whether the abnormal devices at the same power supply node in each power supply path are the same. If so, extract the same abnormal devices and determine them as abnormal devices; otherwise, check each abnormal device separately and determine the abnormal device at the upstream end of the power supply path as the faulty device.

[0052] Each power supply path can be traced back to its source at the same time, and the fault location can be quickly determined through the common fault node. The determination is more intuitive, which is conducive to the determination of emergency faults at important moments and improves the scheduling speed of subsequent maintenance.

[0053] Preferably, the faulty power supply node of the faulty path and the fault impact range are displayed in a two-dimensional digital scene; and the location of the faulty equipment is displayed in a three-dimensional digital scene.

[0054] Visually display the impact range and specific location of the faulty equipment caused by the equipment failure, providing clear and intuitive guidance for logistics power supply guarantee.

[0055] The beneficial effects of the present invention are:

[0056] 1. Digital twin scenarios are constructed hierarchically from the macro regional scenarios and specific site scenarios, which can monitor the power supply relationship of each power supply path in the region at a macro level and carry out targeted information supervision of the distribution network equipment in each scenario.

[0057] 2. Build a complete power supply path based on the power topology and signal flow relationship between devices. In the event of a device failure, trace the power supply path to determine the scope of impact. The traceability is fast and accurate.

[0058] 3. For each power supply path, the source can be traced upward at the same time, and the fault location can be quickly determined through the common fault node. The determination is more intuitive, which is conducive to the determination of emergency faults at important moments and improves the scheduling speed of subsequent maintenance.

[0059] 4. Visually display the impact range and specific location of the faulty equipment caused by the equipment failure, providing clear and intuitive guidance for logistics power supply guarantee. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] FIG1 is a flow chart of the method for tracing the power supply path of important places based on digital twins of the present invention.

[0061] FIG2 is a flow chart of power supply path construction of the present invention.

[0062] FIG3 is a flowchart of the upward tracing process of the present invention. DETAILED DESCRIPTION

[0063] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0064] Example 1:

[0065] This embodiment of a digital twin-based power supply path tracing method for important venues can be applied to power supply sites that integrate conference theme pavilions, conference exhibition halls, and lecture halls. It adopts a microservice architecture design, and on the infrastructure of an integrated cloud platform, uses the integrated cloud platform IaaS and PaaS capability components to add new business applications, and adopts a node virtualization method for cloud deployment. The application scenarios and capabilities of each component are as follows:

[0066] (1) Base layer

[0067] The infrastructure layer provides general computing, storage, and networking services. Compute services enable new business applications based on virtual machines and other computing environments. Storage services support data storage methods such as relational database storage, object storage, and file storage. The system bus provides message queues. Network services offer capabilities such as dedicated virtual private networks (VPCs), load balancing, and virtual firewalls.

[0068] (2) Data layer

[0069] The user-side power distribution monitoring and analysis application integrates dispatching graphics, models, and data from the business platform, as well as graphics, models, and data from both the distribution network and the user-side distribution network. Using cache database technology, hotspot data is cached in memory, significantly reducing the load on the platform.

[0070] (3) Service layer

[0071] To improve performance, the service layer uses RPC or RESTful protocols to call each other. Services are registered and discovered through a unified registration center for effective service management.

[0072] The system's corresponding middle platform provides real-time data integration services, graph and model access and verification services, and external real-time data publishing and alarm services. Based on the message queue, it completes message conversion (conversion, enrichment, filtering), message routing (synchronous / asynchronous, publish / subscribe, content-based routing, branching and aggregation), and other functions to ensure the accuracy and timeliness of data integration.

[0073] Backend applications utilize a microservices architecture, with service governance and security management provided by the cloud platform. The API gateway is the sole entry point for external service calls within the microservices system. All users and consumers access microservices through this unified gateway. Service governance and security management are provided by the cloud platform, prioritizing cloud platform components to ensure stable and secure service operation.

[0074] (4) Business application layer

[0075] The front-end presentation layer uses a front-end framework and combines common front-end components to build application pages. It provides application pages for panoramic monitoring of distribution networks, fault alarm monitoring, and user panoramic monitoring. Based on digital twins, it monitors basic data and real-time data such as power supply venues, substations, transmission lines, distribution equipment, monitoring devices, security resources, fault alarms, potential risks, patrol and emergency repair tasks, weather scale, and geographical distribution. It also uses statistical charts, detailed tables, and three-dimensional simulation applications to conduct panoramic monitoring and display, promptly discover anomalies, and facilitate a comprehensive understanding of the latest developments in the low-voltage side power supply path tracing of power supply objects. At the same time, it carries out the release and monitoring of various types of auxiliary information, such as global meteorological monitoring, power equipment lifecycle management, three-dimensional visualization of fault alarms, and alarm history activity dashboards.

[0076] Specifically, a method for tracing the power supply path of an important place based on digital twins in this embodiment is shown in FIG1 , and includes the following steps:

[0077] S1: Establish corresponding two-dimensional digital twin scenes and three-dimensional digital twin scenes according to the actual regional scene classification.

[0078] In this embodiment, the two-dimensional digital twin scene is a two-dimensional area scene.

[0079] A two-dimensional regional scene includes the relative positions of various locations within the area and the corresponding distribution network equipment in each location. Specifically, on a two-dimensional map of the area where important locations requiring power supply are located, power supply-related locations requiring attention (such as conference venues, switchgear, distribution rooms, and substations) are marked and rendered at the corresponding locations on the map. This allows for the visualization of the relative positions of various locations.

[0080] Based on the geographic information system, key areas can be monitored in real time through visual analysis. The location, status, and key indicators of key areas can be linked and analyzed, and displayed with annotations. This allows for comprehensive monitoring of the real-time situation in key areas, ensuring that lines are processed according to different voltage levels and classifications during actual operation.

[0081] In this embodiment, the three-dimensional digital scene is a three-dimensional place scene.

[0082] The 3D site scenario includes the spatial distribution of distribution network equipment in each location. These locations include switchyards, distribution rooms, venues, and box-type transformers. Specifically, a 3D site scenario is constructed in the corresponding location. For example, for a distribution room, a site is constructed based on the actual distribution room location, with the corresponding equipment cabinets and wiring layouts placed in the corresponding locations, completing a 3D digital twin of the distribution room scenario.

[0083] The supporting distribution substations for the power supply site were modeled, encompassing the building structure, primary equipment, key secondary equipment, and auxiliary control equipment. The modeling granularity reached Level 3, and DTID labels were created. The power supply paths for the venues were also modeled and data matched for the towers, lines, and substations, completing two- and three-dimensional linkage matching of the power supply paths. The protection level and voltage classification information for each protection line were displayed, optimizing the graphical classification of each protection line. Relevant graphical information, including basic station information, power load, and primary wiring diagrams, was displayed based on the different protection levels of the station.

[0084] Digital twin scenarios are constructed hierarchically from the macro regional scenarios and specific location scenarios, which can monitor the power supply relationship of each power supply path in the region at a macro level and carry out targeted information supervision of the distribution network equipment in each scenario.

[0085] S2: Obtain the device information including the IP address uploaded by each distribution network device from the control center of the corresponding area; allocate the distribution network device to the corresponding spatial position in the two-dimensional digital twin scene and the three-dimensional digital twin scene according to the monitoring device information.

[0086] S201: Obtain device information uploaded by the distribution network device from the regional control center.

[0087] The monitoring device information includes IP address, type, model, number and indicator parameters of the corresponding type (such as the on / off status of a switch, the current value of an ammeter, etc.).

[0088] The system supports viewing basic information such as distribution substations, distribution network lines, and equipment, including voltage levels, associated feeders, substations, and real-time telemetering. It also monitors the power supply topology of the distribution network based on the primary single-line diagram, displaying the energized status of distribution equipment. It integrates the operating status of user-side switchgear, internal distribution rooms, internal box-type transformers, and temporary power equipment at the venue, including online monitoring data.

[0089] S202: Allocate the network distribution device to a corresponding location in the two-dimensional digital scene according to the IP address in the device information of the network distribution device.

[0090] Each site corresponds to a different IP address, and the site to which the corresponding data belongs is determined based on the IP address uploaded by the distribution network device.

[0091] S203: For the network distribution devices in each location, match the device type and number of the device information with the network distribution devices in the three-dimensional digital scene, and match the device information to the corresponding spatial position.

[0092] Each device has its own unique code. According to the type of distribution network device and its number, and based on the location of the field survey or the on-site image information obtained by the camera, the corresponding device data can be matched to the corresponding actual spatial location.

[0093] S3: Connect each distribution network device according to the existing topology to form a preliminary power supply path, control the distribution network device to send marking instructions to the upstream distribution network device respectively, and the distribution network device sends the marking feedback to the control center to optimize and correct the preliminary power supply path to form several equipment power supply paths.

[0094] S301: Obtain the corresponding distribution network topology map in the area from the regional control center, connect the distribution network devices in the digital scene according to the distribution network topology map, and obtain a preliminary power supply path.

[0095] The power topology map of the corresponding area is generally stored in the control center of the area. According to the stored power topology map, each place in the constructed two-dimensional digital scene is treated as a node and connected to form several preliminary power supply paths.

[0096] Furthermore, for each site, each power supply path is refined according to the power topology diagram, and each device in the site is connected to improve the preliminary power supply path.

[0097] S302: Acquire each terminal distribution network device in the preliminary power supply path, control each distribution network device to send a marking instruction to the upstream distribution network device respectively, and the distribution network device sends a marking feedback to the control center after receiving the marking instruction.

[0098] The marking instruction is a tag whose name includes the unique number of the terminal distribution network device; the initial value of the marking instruction is 0; in this embodiment, the expression of the instruction marking is: flag(X), where X is the unique number of the terminal distribution network device.

[0099] After receiving the instruction tag sent by the downstream distribution network device, the distribution network device adds one to the value of the instruction tag to obtain the corresponding tag feedback; the tag feedback is a tag whose name includes the unique number of the corresponding terminal distribution network device and the unique code of the distribution network device that sends the instruction tag.

[0100] The expression of flag feedback is flag(X_Y), where Y is the unique code of the distribution network device that sends the command flag.

[0101] That is, flag(X_Y)=flag(X)+1

[0102] The distribution network equipment aggregates all the tag feedback and sends it to the control center.

[0103] As shown in Figure 2, the instruction tag is delivered as follows:

[0104] 1) The terminal distribution network device sends a command tag with an initial value of 0 to the upstream distribution network device.

[0105] 2) For the distribution network device that receives the instruction tag, the instruction tag is increased by one to form a tag feedback, and the instruction tag with the value increased by one is passed to the remaining distribution network devices that have not received the instruction tag and are connected to it.

[0106] 3) The instruction tag is passed cyclically until all the distribution network devices have no objects to which the instruction tag can be passed.

[0107] The connection relationship between distribution network devices is determined through the transmission of information flow, which is used to improve the topology diagram and ensure the reliability of the power supply path.

[0108] S303: The control center collects tag feedback from each distribution network device and forms a topological connection relationship between distribution networks based on the tag feedback content.

[0109] The control centers of the regions will be classified according to the expressions of the marked feedback and arranged from large to small values; and several groups of topological connection relationships will be obtained.

[0110] The tag feedbacks with the unique code X of the same terminal device are grouped into one category; for the distribution network devices with the same value in the same category, the connection object is determined according to the distribution network device Y that sends the instruction tag, thereby obtaining the corresponding topological connection relationship.

[0111] S304: Compare the topological connection relationship of the marked feedback with the distribution network topology map, optimize and supplement the preliminary power supply path, and form several equipment power supply paths.

[0112] Traverse all topological connection relationships and determine whether the same topological connection relationship exists in the preliminary power supply path; if so, remove the corresponding topological connection relationship; otherwise, proceed to the next step of new conflict judgment.

[0113] Determine whether the topological connection relationship conflicts with the existing preliminary power supply path. If so, remove the corresponding topological connection relationship; otherwise, form a device power supply path based on the topological connection relationship.

[0114] S4: When the distribution network equipment is abnormal, trace the power supply path where the distribution network equipment is located to determine the fault path and faulty equipment.

[0115] S401: Collect and obtain device information uploaded by each distribution network device in real time, compare the indicator parameters in the device information with the corresponding threshold value, and determine whether the distribution network device is abnormal.

[0116] S402: When the distribution network equipment is abnormal, the faulty power supply node is determined based on the power supply path of the equipment and the status of the distribution network equipment at each power supply node in the power supply path of the equipment.

[0117] As shown in Figure 3, the process of tracing back to the source based on the device power supply path is as follows:

[0118] 1) If there is only one abnormal power supply path within the same time period, the most upstream power supply node with the abnormal device in the power supply path is determined as the faulty power supply node.

[0119] 2) If there is more than one abnormal power supply path within the same time period, it is determined whether the abnormal power supply paths have the same power supply node.

[0120] If not, the most upstream power supply node with the abnormal device in the power supply path is determined as the faulty power supply node.

[0121] If so, the power supply node with the same path is extracted, and the device information of the abnormal device in the corresponding power supply node is fed back.

[0122] S403: Determine the fault impact range based on the power supply paths of all devices associated with the faulty power supply node; locate the spatial position of the faulty device and perform power protection operations.

[0123] Determine whether the abnormal devices at the same power supply node in each power supply path are the same. If so, extract the same abnormal devices and determine them as faulty devices. Otherwise, check each abnormal device separately and determine the abnormal device at the farthest upstream in the power supply path as the faulty device.

[0124] Each power supply path can be traced back to its source at the same time, and the fault location can be quickly determined through the common fault node. The determination is more intuitive, which is conducive to the determination of emergency faults at important moments and improves the scheduling speed of subsequent maintenance.

[0125] After the faulty device is identified, all downstream power supply paths associated with the faulty device are marked as the fault impact range.

[0126] The faulty power supply node of the fault path and the fault impact range are displayed in a two-dimensional digital scene; the location of the faulty equipment is displayed in a three-dimensional digital scene.

[0127] Visually display the impact range and specific location of the faulty equipment caused by the equipment failure, providing clear and intuitive guidance for logistics power supply guarantee.

[0128] The solution of this embodiment constructs digital twin scenarios in a hierarchical manner from the perspective of macro regional scenarios and specific location scenarios, which can monitor the power supply relationship of each power supply path in the region at a macro level, and can also conduct targeted information supervision on the distribution network equipment in each scenario. According to the power topology and the signal flow relationship between the equipment, a complete power supply path is constructed, and the power supply path is traced to the source in the event of equipment failure to determine the scope of impact. The tracing is fast and accurate. For each power supply path, the source is traced upward at the same time, and the fault location is quickly determined through the common fault node. The determination is more intuitive, which is conducive to the determination of emergency faults at important moments and improves the scheduling speed of subsequent maintenance. The scope of impact caused by the equipment failure and the specific location of the faulty equipment are displayed visually, providing clear and intuitive guidance for logistics power supply guarantee.

[0129] Example 2:

[0130] An embodiment of the present invention also provides a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program is running, it controls the device where the computer-readable storage medium is located to execute a method for tracing the power supply path of an important place based on digital twins as described in any of the above embodiments.

[0131] The digital twin-based power supply path tracing device for key locations includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the aforementioned digital twin-based power supply path tracing method embodiment. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit in the aforementioned device embodiments.

[0132] Exemplarily, a computer program can be divided into one or more modules / units, one or more of which are stored in a memory and executed by a processor to implement the present invention. One or more modules / units can be a series of computer program instruction segments that can perform specific functions, and the instruction segments are used to describe the execution process of the computer program in the digital twin-based important site power supply path tracing device.

[0133] The power supply path tracing device for important places based on digital twins may include, but is not limited to, a processor and a memory. Those skilled in the art will understand that the processor and the memory are merely examples of the power supply path tracing device for important places based on digital twins, and do not constitute a limitation on the power supply path tracing device for important places based on digital twins. It may include more or fewer components, or a combination of certain components, or different components. For example, the power supply path tracing device for important places based on digital twins may also include input and output devices, network access devices, buses, etc.

[0134] The processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc. The processor is the control center of the power supply path tracing device for important places based on digital twins, and uses various interfaces and lines to connect the various parts of the power supply path tracing device based on digital twins.

[0135] The memory can be used to store the computer program and / or module, and the processor realizes the various functions of the power supply path tracing device for important places based on digital twins by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.). In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMediaCard, SMC), a secure digital (SecureDigital, SD) card, a flash card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0136] Among them, if the module / unit integrated into the power supply path tracing equipment of important places based on digital twin is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, it can implement the steps of the above-mentioned various method embodiments. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0137] It should be understood that the embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A method for tracing the power supply path of important places based on digital twins, characterized in that, It includes the following steps: S1: Establish corresponding two-dimensional and three-dimensional digital twin scenarios according to the actual regional scenario classification; S2: Obtain device information including IP addresses uploaded by each distribution network device from the control center of the corresponding area; allocate the distribution network devices to the corresponding spatial positions in the two-dimensional and three-dimensional digital twin scenarios according to the monitored device information; S3: Connect each distribution network device according to the existing topology diagram to form a preliminary power supply path, control the distribution network devices to send marking instructions to the upstream distribution network devices respectively, and the distribution network devices send the marking feedback to the control center to optimize and correct the preliminary power supply path to form several device power supply paths; S4: When a distribution network device is abnormal, trace back according to the power supply path where the distribution network device is located to determine the fault path and the faulty device.

2. The method for tracing the power supply path of important places based on digital twin according to claim 1, wherein, The described two-dimensional digital twin scenario is a two-dimensional regional scenario; the two-dimensional regional scenario includes the relative positions of each place in the area and the corresponding distribution network devices in each place; The described three-dimensional digital scenario is a three-dimensional place scenario; The three-dimensional place scenario includes the spatial position distribution of the corresponding distribution network devices in each place.

3. The method for tracing the power supply path of important places based on digital twin according to claim 1 or 2, characterized in that, The described step S2 includes the following processes: S201: Obtain the device information uploaded by the distribution network device from the control center of the area; S202: Allocate the distribution network device to the corresponding place in the two-dimensional digital scenario according to the IP address in the device information of the distribution network device; S203: For the distribution network devices in each place, match them with the distribution network devices in the three-dimensional digital scenario according to the device type and number in the device information, and match the device information to the corresponding spatial position.

4. A method for tracing the power supply path of important places based on digital twin according to claim 1, characterized in that The described step S3 includes the following processes: S301: Obtain the corresponding distribution network topology diagram in the area from the control center of the area, connect each distribution network device in the digital scenario according to the distribution network topology diagram, and obtain a preliminary power supply path; S302: Obtain each end distribution network device in the preliminary power supply path, control each distribution network device to send a marking instruction to the upstream distribution network device respectively, and the distribution network device sends the marking feedback to the control center after receiving the marking instruction; S303: The control center collects the marking feedback of each distribution network device and forms the topological connection relationship between the distribution networks according to the content of the marking feedback; S304: Compare the topological connection relationship of the marking feedback with the distribution network topology diagram, optimize and supplement the preliminary power supply path to form several device power supply paths.

5. The method for tracing the power supply path of important places based on digital twin according to claim 1 or 4, characterized in that Regard each place in the two-dimensional digital scenario as a node and connect them according to the power topology diagram to form several preliminary power supply paths; For each place, connect each device in the scenario according to the power topology diagram to complete the preliminary power supply path.

6. The method for tracing the power supply path of important places based on digital twin according to claim 1 or 4, characterized in that, The described marking instruction is a marking whose name contains the unique number of the end distribution network device; the initial value of the marking instruction is 0; After the distribution network device receives the instruction marking sent by the downstream distribution network device, it adds one to the value of the instruction marking to obtain the corresponding marking feedback; The described marking feedback is a marking whose name contains the unique number of the corresponding end distribution network device and the unique code of the distribution network device that sends the instruction marking; The distribution network device forms a set of all the marking feedbacks and sends them to the control center. The transmission method of the instruction marking is:

7. The method for tracing the power supply path of important places based on digital twin according to claim 3, wherein, The end distribution network device sends an instruction marking with an initial value of 0 to the upstream distribution network device; ​ For the distribution network devices that receive the instruction tag, increment the instruction tag by one to form a tag feedback, and pass the instruction tag after incrementing the value to the remaining distribution network devices that have not received the instruction tag and are connected to it; Loop through passing the instruction tag until there are no objects to which the instruction tag can be passed among all the distribution network devices.

8. The method for tracing the power supply path of important places based on digital twin according to claim 6, characterized in that, The control center of the area will classify according to the expression of the tag feedback and arrange them in descending order of value; obtain several groups of topological connection relationships; Traverse all the topological connection relationships and determine whether there are the same topological connection relationships in the preliminary power supply path; if so, remove the corresponding topological connection relationships; Otherwise, proceed to the next conflict new judgment; Determine whether the topological connection relationship conflicts with the existing preliminary power supply path; if so, remove the corresponding topological connection relationship; Otherwise, form a device power supply path according to the topological connection relationship.

9. The method for tracing the power supply path of important places based on digital twin according to claim 1 or 8, characterized in that, The step S4 includes the following process: S401: Collect and obtain the device information uploaded by each distribution network device in real time, compare the index parameters in the device information with the corresponding thresholds, and determine whether the distribution network device is abnormal; S402: When the distribution network device is abnormal, trace back upstream according to the device power supply path, and determine the faulty power supply node based on the status of the distribution network devices at each power supply node in the device power supply path; S403: Determine the fault impact range according to all the device power supply paths associated with the faulty power supply node; Locate the spatial position of the faulty device and perform power protection operations.

10. The method for tracing the power supply path of important places based on digital twin according to claim 8, characterized in that, The specific process of the upstream tracing is as follows: 1) If there is only one abnormal power supply path during the same time period; then determine the most upstream power supply node with abnormal devices in the power supply path as the faulty power supply node; 2) If there are more than one abnormal power supply paths during the same time period; then determine whether there are the same power supply nodes in the abnormal power supply paths; 3) Determine whether the abnormal devices of the same power supply node in each power supply path are the same; if so, extract the same abnormal devices and determine them as abnormal devices; otherwise, check each abnormal device separately, and take the most upstream abnormal device in the power supply path as the faulty device.

11. The method for tracing the power supply path of important places based on digital twin according to claim 10, characterized in that, If there are no same power supply nodes in the abnormal power supply paths, then respectively determine the most upstream power supply nodes with abnormal devices in the power supply paths as the faulty power supply nodes; If there are the same power supply nodes in the abnormal power supply paths, then extract the power supply nodes with the same paths and feedback the device information of the abnormal devices in the corresponding power supply nodes.

12. A method for tracing the power supply path of important places based on digital twin according to claim 1 or 10 or 11, characterized in that, Display the faulty power supply node and the fault impact range of the fault path in the two-dimensional digital scene; display the position of the faulty device in the three-dimensional digital scene.

13. A readable storage medium, characterized in that, The readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of a method for tracing the power supply path of important places based on digital twin as described in any one of claims 1-12.

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