Substation digital twin system based on three-dimensional model and logic model

Abstract

The invention relates to a transformer substation digital twin system based on a three-dimensional model and a logic model. The transformer substation digital twin system comprises an equipment and environment sensing module, an information network transmission module, an information modeling module, an equipment monitoring module, a fault analysis and early warning module and an emergency management module. Wherein the information modeling module is constructed by associating a three-dimensional model and a logic model in a digital coding mode. Obtaining three-dimensional live-action data of the transformer substation through a laser point cloud scanning technology in combination with the BIM to generate a three-dimensional model of the transformer substation; and establishing a transformer substation whole-station logic model by using the semantization-based XML configuration file according to the transformer substation overall architecture information. According to the invention, information such as the spatial layout and the equipment structure of the transformer substation can be visually embodied, the equipment state of the transformer substation can be comprehensively sensed, the monitoring and patrol efficiency can be improved, the fault can be analyzed, predicted, quickly positioned, pre-warned and timely processed, and daily operation and maintenance of the transformer substation are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of digital twins, and in particular to a substation digital twin system based on a three-dimensional model and a logical model. Background Art

[0002] Digital twin technology refers to using physical models, Internet of Things sensors, simulation technology, etc. to construct an exact mapping of an entity equipment in a virtual space through digital means, so as to reflect all structures or the production, operation, and maintenance process of the corresponding entity equipment.

[0003] With the increasingly obvious trend of power grid digitalization and networking, the "Digital Twin Innovation Plan" has been put forward in the development requirements of the new power system. Among them, substations deeply integrate digital twin technology with three-dimensional design, greatly promoting the digital reform of the operation and maintenance links of transmission and substation projects, and is of great significance to the construction of a high-quality national power grid.

[0004] In the prior art, three-dimensional visualization technology and three-dimensional modeling technology are used to form a digital model of the entire substation, realizing digital expression of the substation and comprehensive query and management of structural information. However, currently, the focus is on the modeling of physical models such as primary equipment and main buildings, and less attention is paid to the digital design and logical model modeling of the logical model, especially the secondary system. There are even fewer related designs for constructing digital twins by associating three-dimensional models and logical models.

[0005] Moreover, the current substation has the following typical problems that need to be solved urgently: 1. Substation monitoring and operation and maintenance are mainly based on traditional two-dimensional logical views, which cannot intuitively reflect information such as the spatial structure and layout of equipment, and it is not convenient to quickly locate faulty equipment in case of emergencies; 2. The two sets of monitoring systems (main control system and auxiliary control system) in the substation are relatively independent, which is not convenient for operation and maintenance personnel to comprehensively monitor the main and auxiliary equipment of the substation; 3. Under the development trend of the unmanned substation operation mode, the substation fault analysis and early warning module and the emergency management system are relatively backward. When an accident occurs, front-line operation and maintenance personnel cannot immediately master the key operation information of the substation. Therefore, we propose a substation digital twin system based on a three-dimensional model and a logical model to solve these problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a substation digital twin system based on a three-dimensional model and a logical model to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A substation digital twin system based on a three-dimensional model and a logical model, comprising: a device and environment perception module, an information network transmission module, an information modeling module, a device monitoring module, a fault analysis and early warning module, and an emergency management module;

[0009] The device and environment perception module comprehensively collects and perceives the operation parameters of the main substation equipment and the in-station environment parameters through sensors with device and environment perception functions in the substation;

[0010] The information network transmission module transmits the operation parameters of the main substation equipment and the in-station environment parameter data to the information modeling module;

[0011] The information modeling module generates a three-dimensional model of the substation through the operation parameters of the main substation equipment and the in-station environment parameter data, and the three-dimensional real-scene data of the substation obtained by combining point cloud scanning technology with BIM;

[0012] According to the overall substation architecture information, a whole-station logical model of the substation is established using a semantic-based XML configuration file, and the three-dimensional model of the substation and the whole-station logical model of the substation are associated to jointly construct a substation digital twin;

[0013] The device monitoring module is used to monitor the operation status of the substation in real time, and feedback and display the monitoring information on the three-dimensional model of the substation;

[0014] The fault analysis and early warning module is used to analyze and diagnose potential faults based on the digital twin and issue early warning signals in a timely manner to improve the safety of the substation;

[0015] The emergency management module is used to manage the operation status and operation environment of the substation equipment. When a device fault occurs, it controls the activation of the relay protection device of the substation. When a fire occurs, it controls the activation of the fire protection system of the substation.

[0016] Further, the device and environment perception module includes device parameter sensors for sensing the performance parameters of substation equipment and environmental auxiliary control monitoring sensors for sensing the environmental parameters in the substation;

[0017] The device parameter sensors include one or several of voltage and current transformers for monitoring power grid operation, sensors for monitoring sound vibration, infrared, and partial discharge of on-line equipment;

[0018] The environmental auxiliary control monitoring sensors include one or several of SF6 sensors for monitoring gas and temperature and humidity sensors for monitoring the environment.

[0019] Further, the information network transmission module includes one or several of a power wireless private network, a power APN channel, and a power optical fiber network.

[0020] Furthermore, the information modeling module includes a 3D model, a substation-wide logical model, and a substation digital twin constructed by associating the 3D model and the substation-wide logical model through digital coding.

[0021] Furthermore, the 3D model generates the 3D model of the substation by obtaining the 3D real-scene data of the substation through laser point cloud scanning technology combined with BIM, which is used to display different levels of the substation digital twin and all 3D components, and to realize the viewing of different scenarios of the substation.

[0022] Furthermore, establishing the substation-wide logical model using a semantic XML configuration file according to the overall architecture information of the substation includes:

[0023] Collecting the physical structure data, electrical configuration data, control logic data, and historical operation data of the substation as the overall architecture information of the substation;

[0024] Constructing a physical circuit XML configuration file and a logical circuit XML configuration file according to the overall architecture information of the substation to obtain the substation logical model;

[0025] Obtaining secondary equipment information and cable library;

[0026] Establishing a secondary logical model library of the substation according to the secondary equipment information and cable library;

[0027] Digitally wiring the secondary circuit of the substation logical model based on the secondary logical model library to obtain the substation-wide logical model.

[0028] Furthermore, the digital coding method includes:

[0029] Interval coding, which includes virtual interval coding and primary equipment interval coding; The primary equipment interval coding starts with the start code "=", and includes three parts: system code, interval name coding, and voltage level coding. Among them, the interval name coding and voltage level coding are represented by a combination of numbers and English letters, and the system code is represented by "W";

[0030] Secondary equipment coding, which includes secondary switchboard coding, equipment coding inside the switchboard, and secondary box coding, etc.;

[0031] Cable wiring secondary circuit coding, which is composed of numbers, letters, or a combination of numbers and letters; The same group of AC current and voltage circuits should add a prefix A / B / C to distinguish the circuits coded by phase; For DC control and input circuits, add a suffix A / B / C to distinguish the circuits coded by phase;

[0032] Cable numbering, which includes three parts: primary equipment interval cable coding, cable type coding, and function coding; The function coding is used to distinguish the circuit type of the cable and different path directions of the cable.

[0033] Furthermore, the device monitoring module monitors the operation status of the substation in real time, and feeds back and displays the monitoring information on the substation twin system model, specifically including:

[0034] By displaying real-time data, historical data, and analysis data, the online monitoring function of the operation status of equipment such as transformers, switches, compatible equipment, and lightning arresters is realized;

[0035] By monitoring the arming / disarming status information, operating conditions information, zone alarm information, and fault alarm information of the security prevention equipment in real time, the alarm confirmation and arming / disarming operations of the security prevention equipment are realized;

[0036] By monitoring the real-time status of the power environment system such as substation environmental parameters, operation status, communication status, and fault alarm information, the automatic control and remote control of air conditioners and fans are realized;

[0037] By connecting the fire alarm host to the auxiliary equipment monitoring module, the monitoring of the operation and status information of the substation fire automatic alarm system is realized, and the linkage with the video monitoring system is realized;

[0038] The video monitoring system is linked with security, fire protection, environment, and main equipment, tracks the changes in the on-site status in a timely manner, and pushes pictures, takes photos, and records videos to provide a basis for subsequent analysis.

[0039] Furthermore, the fault analysis and early warning module includes a fault classification module, a fault analysis module, and an early warning information transmission module. The fault classification module is used to analyze the potential fault types of the digital twin system. The fault analysis module is used to analyze the specific impacts and solutions of potential faults in the digital twin model. The early warning information transmission module is used to analyze and diagnose potential faults based on the digital twin and send out early warning signals in a timely manner to improve the safety of the substation.

[0040] Furthermore, the emergency management module manages the operation status and operation environment of substation equipment. When a device failure occurs, the emergency management module can control the activation of the substation's relay protection device. When a fire breaks out in the substation, the emergency management module controls the activation of the substation's fire protection system.

[0041] In the above technical solution, the present invention has the following beneficial effects:

[0042] 1. In the present invention, a substation digital twin system based on a three-dimensional model and a logical model collects the operation data of each device in the substation in real time, constructs a digital twin model, and realizes real-time monitoring and analysis of the substation. At the same time, the system has an emergency management function, which can send early warning signals in a timely manner and activate the relay protection device of the substation in case of a fault; in case of a fire, it controls the activation of the substation fire protection system to improve the safety of the substation. 2. The substation digital twin system based on a three-dimensional model and a logical model has a remote control function, which can realize remote control of the devices in the substation and reduce the operation and maintenance costs; 3. According to the overall architecture information of the substation, the present invention uses a semantic-based XML configuration file to establish a substation logical model, and associates the three-dimensional model by means of digital coding. The constructed digital twin body has a more comprehensive function and can better represent the mapping of the physical substation in the virtual space. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0044] Figure 1 The system architecture diagram of a substation digital twin system based on a three-dimensional model and a logical model proposed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further introduce the present invention in detail with reference to the drawings.

[0046] Refer to Figure 1 , a substation digital twin system based on a three-dimensional model and a logical model, comprising:

[0047] An equipment and environment perception module for comprehensively collecting and perceiving the operation parameters of the main equipment in the substation and the environmental parameters in the substation; comprehensively collecting and perceiving the operation parameters of the main equipment in the substation and the environmental parameters in the substation through sensors with equipment and environment perception functions in the substation;

[0048] An information network transmission module for transmitting the operation parameters of the main equipment in the substation and the environmental parameter data to the information modeling module;

[0049] The information modeling module generates a three-dimensional model of the substation through the operation parameters of the main equipment in the substation and the environmental parameter data, and the three-dimensional real-scene data of the substation obtained by combining point cloud scanning technology with BIM;

[0050] According to the overall architecture information of the substation, a substation-wide logical model is established using a semantic XML configuration file, and the 3D model of the substation is associated with the substation-wide logical model to jointly construct a substation digital twin;

[0051] The device monitoring module is used to monitor the operation status of the substation in real time and feedback and display the monitoring information on the 3D model of the substation;

[0052] The fault analysis and early warning module is used to analyze and diagnose potential faults based on the digital twin and issue early warning signals in a timely manner;

[0053] The emergency management module is used to manage the operation status and operation environment of substation equipment. When a device failure occurs, it controls the activation of the relay protection device of the substation. When a fire occurs, it controls the activation of the fire protection system of the substation.

[0054] In this embodiment, the device and environment perception module includes device parameter sensors for sensing the performance parameters of substation equipment and environmental auxiliary control monitoring sensors for sensing the environmental parameters inside the substation;

[0055] The device parameter sensors include one or several of voltage and current transformers for monitoring the operation of the power grid, sensors for monitoring the acoustic vibration, infrared, and partial discharge of on-line equipment;

[0056] The environmental auxiliary control monitoring sensors include one or several of SF6 sensors for monitoring gas and temperature and humidity sensors for monitoring the environment.

[0057] Preferably, the device parameter sensors at least include voltage and current transformers for monitoring the operation of the power grid, sensors for monitoring the acoustic vibration, infrared, partial discharge, etc. of on-line equipment; the environmental auxiliary control monitoring sensors at least include SF6 sensors for monitoring gas, temperature and humidity sensors for monitoring the environment, etc.

[0058] In this embodiment, the information network transmission module includes one or several of a power wireless private network, a power APN channel, and a power optical fiber network, and the bandwidth rate can meet the data transmission requirements of the substation digital twin system.

[0059] In this embodiment, the information modeling module includes a 3D model, a substation-wide logical model, and a substation digital twin constructed by associating the two through digital coding.

[0060] Among them, the 3D model mainly obtains the 3D real-scene data of the substation through laser point cloud scanning technology combined with BIM, and is used to display different levels and all 3D components of the substation digital twin to realize the viewing of different scenarios of the substation.

[0061] The substation-wide logical model is mainly established based on the overall architecture information of the substation using a semantic-based XML configuration file. The specific steps include:

[0062] Collect the physical structure data, electrical configuration data, control logic data, and historical operation data of the substation as the overall architecture information of the substation;

[0063] Construct a physical loop XML configuration file and a logical loop XML configuration file based on the above overall architecture information of the substation to obtain the substation logical model;

[0064] Obtain the secondary equipment information and the cable library;

[0065] Establish a secondary logical model library for the substation based on the secondary equipment information and the cable library;

[0066] Perform digital secondary circuit wiring on the substation logical model based on the secondary logical model library to obtain the substation-wide logical model.

[0067] XML (Extensible Markup Language) can be used to mark data and define data types. It is a source language that allows users to define their own markup languages. An XML file includes the following content:

[0068] (1) Tag: XML data consists of many tags. A tag includes a start tag and an end tag.

[0069] (2) Element: What consists of a start tag, an end tag, and the content between them is called an element.

[0070] (3) Attribute: Attributes are used to provide additional information for elements and are usually defined in the start tag. An attribute consists of a name and a value, for example <element attribute="value">.

[0071] (4) Comment: Comments are auxiliary information in XML files and will not be processed.

[0072] Construct a substation physical configuration description file (SPD) based on the physical loop XML configuration file and the logical loop XML configuration file, specifically including:

[0073] 1. Collect the physical structure data, electrical configuration data, control logic data, and historical operation data of the substation, which are the overall architecture information of the substation. Among them, the physical structure data, electrical configuration data, control logic data, and historical operation data adopt a unified format and standard.

[0074] 2. Based on physical structure data, electrical configuration data, control logic data, and historical operation data, construct and combine a physical loop XML configuration file and a logical loop XML configuration file to generate substation elements, bay elements, panel cabinet elements, external logical physical interface elements, physical device elements, physical cable elements for connecting between panel cabinets, and cable core elements within a single substation, thereby obtaining a substation logical model.

[0075] Specifically, determine a modular framework for the physical configuration description file of the substation, where each module represents a specific function or component of the substation, and adopt a hierarchical approach based on physical structure data, electrical configuration data, control logic data, and the historical operation data to represent different functions and processes in layers, so as to simplify the model structure. At the same time, combine the physical loop XML configuration file and the logical loop XML configuration file to generate substation elements, bay elements, panel cabinet elements, external logical physical interface elements, physical device elements, physical cable elements for connecting between panel cabinets, and cable core elements within a single substation.

[0076] In this embodiment, the substation digital twin is mainly constructed by associating a 3D model and a substation-wide logical model through a digital coding method. The specific content of the digital coding method includes:

[0077] Bay coding: Bay coding consists of virtual bay coding and primary equipment bay coding. The primary equipment bay coding starts with the start code "=", and is composed of three parts: a system code, a bay name code, and a voltage level code. Among them, the bay name code and the voltage level are represented by a combination of numbers and English letters, and the system code is represented by "W";

[0078] Secondary equipment coding: At least includes secondary equipment coding, which consists of secondary panel cabinet coding, equipment coding within the panel cabinet, and secondary box body coding. For example, the secondary box body type coding is shown in Table 1;

[0079] Table 1 Secondary box body type coding

[0080] Function description Character Intelligent control cabinet IV Gaokang intelligent control cabinet GIV Control cabinet V High impedance control cabinet GV Terminal box UT5 Power box PD

[0081] Cable connection secondary circuit coding: Cable connection secondary circuit coding is composed of numbers, letters, or a combination of numbers and letters. In the same circuit, the circuit coding has a unique identifier. For the same group of AC current and voltage circuits, the prefix A / B / C should be added to distinguish the phase-coded circuits. For DC control and input circuits, the suffix A / B / C is added to distinguish the phase-coded circuits;

[0082] Cable numbering, that is, the numbering of cables, optical cables, tail cables, etc. should preferably be composed of three parts: primary equipment bay coding, cable type coding, and function coding;

[0083] Functional coding: Coding used to distinguish different path directions of cables, loop types of cables, protection sets A or B corresponding to cables, etc.

[0084] In this embodiment, the fault analysis and early warning module analyzes and diagnoses potential faults based on the digital twin system and issues early warning signals in a timely manner. The specific contents are as follows:

[0085] The fault classification module is used to analyze the potential fault types of the digital twin system;

[0086] The fault analysis module is used to analyze the specific impacts and solutions of potential faults in the digital twin model;

[0087] The early warning information transmission module is used to analyze and diagnose potential faults based on the digital twin and issue early warning signals in a timely manner to improve the safety of the substation;

[0088] In this embodiment, the equipment monitoring module monitors the operation status of the substation in real time and feeds back and displays the monitoring information on the 3D model of the substation. The specific contents are as follows:

[0089] By displaying real-time data, historical data, and analysis data, the online monitoring function of the operation status of equipment such as transformers, switches, compatible equipment, and lightning arresters is realized;

[0090] By monitoring the real-time status information of security prevention equipment such as infrared pair shooting, infrared dual detection, electronic fences, and access control equipment, including the arming / disarming status information, operating conditions information, zone alarm information, and fault alarm information, the alarm confirmation and arming / disarming operations of the security prevention equipment are realized;

[0091] By monitoring the real-time status information of the dynamic environment system of the substation, including environmental parameters, operation status, communication status, and fault alarm information, the automatic control and remote control of air conditioners and fans are realized;

[0092] By connecting the fire alarm host to the auxiliary equipment monitoring module, the monitoring of the operation and status information of the automatic fire alarm system of the substation is realized, and the linkage with the video monitoring system is realized;

[0093] The video monitoring system is linked with security, fire protection, environment, and main equipment, tracks the on-site status changes in a timely manner, pushes pictures, takes photos, and records videos, providing a basis for subsequent analysis.

[0094] In this embodiment, the fault analysis and early warning module includes a fault classification module, a fault analysis module, and an early warning information transmission module. The fault classification module is used to analyze the potential fault types of the digital twin system, the fault analysis module is used to analyze the specific impacts and solutions of potential faults in the digital twin model, and the early warning information transmission module is used to analyze and diagnose potential faults based on the digital twin and issue early warning signals in a timely manner to improve the safety of the substation.

[0095] In this embodiment, the emergency management module manages the operating status and operating environment of substation equipment. When a equipment failure occurs, the emergency management module can control the activation of the relay protection device of the substation. When a fire breaks out in the substation, the emergency management module controls the activation of the fire protection system of the substation.

[0096] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A substation digital twin system based on a three-dimensional model and a logical model, characterized in that, Including: Device and environment perception module, information network transmission module, information modeling module, device monitoring module, fault analysis and early warning module, and emergency management module; The device and environment perception module comprehensively collects and perceives the operation parameters of the main substation equipment and the internal environment parameters of the substation through sensors with device and environment perception functions in the substation; The information network transmission module is used to transmit the operation parameters of the main substation equipment and the internal environment parameter data to the information modeling module; The information modeling module generates a three-dimensional model of the substation through the operation parameters of the main substation equipment and the internal environment parameter data, and the three-dimensional real-scene data of the substation obtained by combining point cloud scanning technology with BIM; According to the overall architecture information of the substation, use a semantic-based XML configuration file to establish a full-station logical model of the substation, associate the three-dimensional model of the substation and the full-station logical model of the substation, and jointly construct a digital twin of the substation; The device monitoring module is used to monitor the operation status of the substation in real time, and feedback and display the monitoring information on the three-dimensional model of the substation; The fault analysis and early warning module is used to analyze and diagnose potential faults based on the digital twin and issue early warning signals in a timely manner to improve the safety of the substation; The emergency management module is used to manage the operation status and operation environment of the substation equipment. When a device failure occurs, it controls the activation of the relay protection device of the substation. When a fire occurs, it controls the activation of the fire protection system of the substation.

2. The substation digital twin system based on a three-dimensional model and a logical model according to claim 1, wherein The device and environment perception module includes device parameter sensors for sensing the performance parameters of substation equipment and environmental auxiliary control monitoring sensors for sensing the environmental parameters inside the substation; The device parameter sensors include one or more of voltage and current transformers for monitoring the operation of the power grid, and sensors for monitoring the sound vibration, infrared, and partial discharge of on-line equipment; The environmental auxiliary control monitoring sensors include one or more of SF6 sensors for monitoring gas and temperature and humidity sensors for monitoring the environment.

3. A substation digital twin system based on a three-dimensional model and a logical model according to claim 1, characterized in that, The information network transmission module includes one or more of a power wireless private network, a power APN channel, and a power optical fiber network.

4. A substation digital twin system based on a three-dimensional model and a logical model according to claim 1, characterized in that, The information modeling module includes a three-dimensional model, a full-station logical model of the substation, and a digital twin of the substation constructed by associating the three-dimensional model and the full-station logical model of the substation through digital coding.

5. The substation digital twin system based on a three-dimensional model and a logical model according to claim 4, characterized in that, The three-dimensional model generates a three-dimensional model of the substation by combining laser point cloud scanning technology with BIM to obtain three-dimensional real-scene data of the substation, which is used to display different levels and all three-dimensional components of the digital twin of the substation and realize the viewing of different scenes of the substation.

6. The digital twin system of a substation based on a three-dimensional model and a logical model according to claim 4, wherein The establishment of the full-station logical model of the substation using a semantic-based XML configuration file according to the overall architecture information of the substation includes: Collecting the physical structure data, electrical configuration data, control logic data, and historical operation data of the substation as the overall architecture information of the substation; Constructing a physical loop XML configuration file and a logical loop XML configuration file according to the overall architecture information of the substation to obtain the logical model of the substation; Obtaining secondary equipment information and cable ducts; Establishing a secondary logical model library of the substation according to the secondary equipment information and cable ducts; Digitally connect the secondary circuit of the substation logic model based on the secondary logic model library to obtain the full-station logic model of the substation.

7. The substation digital twin system based on a three-dimensional model and a logical model according to claim 4, wherein, The digital coding methods include: Bay coding, which includes virtual bay coding and primary equipment bay coding; the primary equipment bay coding starts with the start code "=", and includes three parts: system code, bay name coding, and voltage level coding. Among them, the bay name coding and voltage level coding are represented by a combination of numbers and English letters, and the system code is represented by "W"; Secondary equipment coding, which includes secondary panel cabinet coding, equipment coding inside the cabinet, and secondary box body coding; Cable connection secondary circuit coding, which is composed of numbers, letters, or a combination of numbers and letters; for the same group of AC current and voltage circuits, the prefix A / B / C should be added to distinguish the phase-coded circuits; for DC control and input circuits, the suffix A / B / C is added to distinguish the phase-coded circuits; Cable coding, which includes three parts: primary equipment bay cable coding, cable type coding, and function coding; the function coding is used to distinguish the circuit type of the cable and different path directions of the cable.

8. A substation digital twin system based on a three-dimensional model and a logical model according to claim 1, characterized in that, The device monitoring module monitors the operation status of the substation in real time, and feeds back and displays the monitoring information on the substation twin system model. Specifically, it includes: Realize the online monitoring function of the operation status of transformers, switches, compatible equipment, and lightning arresters by displaying real-time data, historical data, and analysis data; Realize the alarm confirmation and arming / disarming operations of security prevention equipment by monitoring the arming / disarming status information, operation conditions information, defense zone alarm information, and fault alarm information of security prevention equipment in real time; Realize the automatic control and remote control of air conditioners and fans by monitoring the real-time status of the power environment system such as substation environment parameters, operation status, communication status, and fault alarm information; By connecting the fire host to the auxiliary equipment monitoring module, realize the monitoring of the operation and status information of the substation automatic fire alarm system, and realize the linkage with the video monitoring system; The video monitoring system is linked with security, fire protection, environment, and main equipment, tracks the on-site status changes in a timely manner, and pushes the pictures and takes photos and videos to provide a basis for subsequent analysis.

9. A substation digital twin system based on a three-dimensional model and a logical model according to claim 1, characterized in that, The fault analysis and early warning module includes a fault classification module, a fault analysis module, and an early warning information emission module. The fault classification module is used to analyze the potential fault types of the digital twin system, the fault analysis module is used to analyze the specific impacts and solutions of potential faults in the digital twin model, and the early warning information emission module is used to analyze and diagnose potential faults based on the digital twin and send out early warning signals in a timely manner to improve the safety of the substation.

10. The substation digital twin system based on a three-dimensional model and a logical model according to claim 1, wherein, The emergency management module manages the operation status and operation environment of substation equipment. When a device failure occurs, the emergency management module can control the activation of the substation's relay protection device. When a fire occurs in the substation, the emergency management module controls the activation of the substation's fire protection system.

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