A system and method for information interaction between master and substation of power grid control

Abstract

The present invention discloses a power grid control master-substation information interaction system and method, the system includes a control master station, a control cloud and a substation secondary system; the control master station includes a first safety zone front cluster and a second safety zone front cluster, the control cloud includes a cloud platform and an edge layer, and the substation secondary system includes a real-time gateway machine and a service gateway machine; the first safety zone front cluster is communicatively connected to the real-time gateway machine, the second safety zone front cluster is communicatively connected to the service gateway machine, the first safety zone front cluster collects real-time status data of the substation secondary system through the real-time gateway machine, the second safety zone front cluster collects graphic model information and monitoring information of the substation secondary system through the service gateway machine, and transmits the graphic model information to the cloud platform, the cloud platform performs container arrangement and configuration according to the graphic model information and delegates it to the edge layer, and generates a secondary equipment model in the edge layer; the system can improve the flexibility and operation efficiency of the control master station.

Description

Technical Field

[0001] The present invention relates to the field of cloud computing technology, and in particular to a power grid control master-substation information interaction system and method. Background Art

[0002] Since the pilot construction of smart substations was launched, the development and construction of the secondary system of existing substations has provided strong support for the operation monitoring and control of the dispatching master station. With the rapid development of ultra-high voltage AC / DC hybrid power grids, large-scale access to new energy, and the continuous advancement of power market reforms, the structural form, system characteristics, and production organization of the power system have undergone major changes. In order to meet the above challenges, it is proposed to build a new generation of energy management systems. In view of the increasingly complex data interaction and the wide variety of data in the new generation of systems, a flexible, efficient, and universal master-substation data communication implementation architecture is urgently needed.

[0003] For example, patent document CN113783304A discloses a cloud-edge collaborative system for substation monitoring. It uses cloud platform resources as a service to provide distributed storage services, data fusion services, data processing and computing services, and data security management services to implement the functional management of data asset inventory modules, data development tool modules, data service management modules, data service-oriented theme center modules, service security gateway modules, and portal management modules. It realizes the functions of unified platform, standardized access, panoramic display, remote control, and intelligent linkage of substation monitoring information, and realizes comprehensive grasp of unmanned substation equipment information through cloud-edge collaborative centralized control station monitoring system, solving the current problems of few substation operation and maintenance personnel, heavy tasks, and lack of monitoring means. However, this solution cannot solve the problems of insufficient flexibility and low operating efficiency of the dispatching master station caused by the complex structure of the current substation system and the control master station and the wide variety of data. Summary of the invention

[0004] The present invention provides a power grid control master-substation information interaction system and method, which can effectively improve the flexibility and operation efficiency of the control master station.

[0005] A power grid control master-substation information interaction system, including a control master station, a control cloud, and a substation secondary system;

[0006] The control master station includes a first safety zone front cluster and a second safety zone front cluster, the control cloud includes a cloud platform and an edge layer, and the substation secondary system includes a real-time gateway and a service gateway;

[0007] The first safety zone front cluster is communicatively connected to the real-time gateway machine, and the second safety zone front cluster is communicatively connected to the service gateway machine. The first safety zone front cluster collects real-time status data of the substation secondary system through the real-time gateway machine, and the second safety zone front cluster collects graphic model information and monitoring information of the substation secondary system through the service gateway machine, and transmits the graphic model information to the cloud platform. The cloud platform performs container orchestration and configuration according to the graphic model information and delegates it to the edge layer, and generates a secondary equipment model in the edge layer.

[0008] Furthermore, a firewall is provided between the first security zone front cluster and the second security zone front cluster.

[0009] Furthermore, the first safety zone front cluster transmits the real-time status data in a longitudinal encryption manner, and the second safety zone front cluster transmits the image model information and monitoring information in a longitudinal encryption manner.

[0010] Furthermore, the edge layer includes multiple edge nodes, and the cloud platform forms multiple microservices and generates container images using the acquired multiple graph model information, orchestrates corresponding microservice containers for the multiple edge nodes according to a preset calling hierarchy relationship, and delegates the microservice containers to each edge node. The edge node generates a secondary device model based on the microservice container.

[0011] Furthermore, the substation secondary system includes a monitoring host, an anti-error host, an integrated host, a patrol host, a measurement and control device, and a collection and execution unit, and the system also includes primary equipment.

[0012] Furthermore, the first safety zone front cluster generates a one-key sequential control command and sends it to the monitoring host through the scheduling data network through the real-time gateway machine. The monitoring host sends the one-key sequential control command to the measurement and control device. The measurement and control device feeds back to the monitoring host the primary equipment working status data collected by the acquisition execution unit within a preset time according to the one-key sequential control command. The monitoring host sends the primary equipment working status data and the one-key sequential control command to the anti-error host. The anti-error host generates an anti-error verification sequence according to the primary equipment working status data and the one-key sequential control command, and based on the anti-error verification sequence, the anti-error verification sequence is generated. The error check sequence generates a check result, and sends the check result to the monitoring host; the monitoring host also sends the one-key sequence control command to the integrated host, and the integrated host sends the one-key sequence control command to the patrol host. The patrol host sends the acquired operation and maintenance patrol and diagnosis result data to the integrated host according to the one-key sequence control command, and the integrated host feeds back the operation and maintenance patrol and diagnosis result data to the monitoring host. The monitoring host sends the equipment working status data, the check result, and the operation and maintenance patrol and diagnosis result data to the first security zone front cluster via the real-time gateway machine.

[0013] Furthermore, the substation secondary system also includes a time synchronization device, an interval layer device, a process layer device and a station control layer device. The time synchronization device provides time for the interval layer device, the process layer device and the station control layer device. Thereafter, the time synchronization device sends a time synchronization monitoring request to the interval layer device, the process layer device and the station control layer device. At the same time, the time synchronization device records the time of sending the time synchronization monitoring request. When the interval layer device, the process layer device and the station control layer device receive the time synchronization monitoring request, the time of receiving the time synchronization monitoring request and their own current time form a message and send it to the time synchronization device. The time synchronization device records the time of receiving the message, and calculates the time deviation based on the time of sending the time synchronization monitoring request, the time when the interval layer device, the process layer device and the station control layer device receive the time synchronization monitoring request and their own current time, and the time when the message is received, and sends the time deviation to the second safety zone front cluster via the service gateway machine.

[0014] Furthermore, the time deviation is calculated by the following formula:

[0015] △T=(T 1 -T 2 +T 4 -T 3 ) / 2;

[0016] Among them, T 1 The time synchronization device records the time when the time synchronization monitoring request is sent, T 2T is the time when the bay layer device, process layer device or station control layer device receives the time synchronization monitoring request, 3 is the current time of the bay layer device, process layer device or station control layer device, T 4 is the moment when the time synchronization device receives the message, and △T is the time deviation.

[0017] Furthermore, the second security zone front cluster image model request is sent to the monitoring host through the service gateway machine, and the monitoring host parses the pre-configured image model file according to the image model request to generate a graphic file, and sends the image model file and the graphic file to the second security zone front cluster through the service gateway machine, and the second security zone front cluster sends the image model file and the graphic file to the cloud platform, and the cloud platform transfers the configuration file and the graphic file to the edge layer;

[0018] The substation secondary system also includes an intelligent message recording device, which collects panoramic data in the substation secondary system and processes it to generate remote control recording data, and the remote control recording data is sent to the second safety zone front cluster via the service gateway machine.

[0019] The present invention also provides a method for information interaction between a master and a substation of a power grid control system using the above system, comprising:

[0020] The first safety zone front cluster collects real-time status data of the substation secondary system through the real-time gateway;

[0021] The second safety zone front cluster collects the image model information and monitoring information of the substation secondary system through the service gateway, and transmits the image model information to the cloud platform;

[0022] The cloud platform arranges and configures containers according to the image model information and transfers them to the edge layer, and generates a secondary device model in the edge layer.

[0023] The power grid control master-substation information interaction system and method provided by the present invention have at least the following beneficial effects:

[0024] (1) The first safety zone front cluster and the second safety zone front cluster are respectively set up at the control master station to realize real-time status monitoring of the substation secondary system and the collection of image model information, and establish a connection with the control cloud to facilitate the cloud platform to obtain image model information for container orchestration, effectively improving the flexibility and operation efficiency of the control master station;

[0025] (2) One-button sequential control of the substation secondary system is realized through the first safety zone front cluster, replacing the traditional manual switching operation and improving the automation level of the substation secondary system;

[0026] (3) Through the time synchronization device, the time synchronization of the substation secondary system equipment is achieved, and the time deviation is calculated and sent to the control master station through the second safety zone front cluster, providing an accurate basis for the time control of the control master station. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A structural schematic diagram of an embodiment of the power grid control master-substation information interaction system provided by the present invention.

[0028] Figure 2 A structural schematic diagram of an embodiment of a control cloud in the power grid control master-substation information interaction system provided by the present invention.

[0029] Figure 3 A schematic diagram of an embodiment of a one-key sequential control process in the power grid control master-substation information interaction system provided by the present invention.

[0030] Figure 4 A schematic diagram of an embodiment of a time synchronization process in a power grid control master-substation information interaction system provided by the present invention.

[0031] Figure 5 A schematic diagram of an embodiment of a remote operation and maintenance process in a power grid control master-substation information interaction system provided by the present invention.

[0032] Figure 6 A schematic diagram of an embodiment of a panoramic monitoring process in a power grid control master-substation information interaction system provided by the present invention.

[0033] Figure 7 A flow chart of an embodiment of the method for master-substation information interaction in power grid regulation provided by the present invention. DETAILED DESCRIPTION

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] refer to Figure 1 , in some embodiments, a power grid control master-substation information interaction system is provided, including a control master station 1, a control cloud 2, and a substation secondary system 3;

[0036] The control master station 1 includes a first safety zone front cluster 11 and a second safety zone front cluster 12, the control cloud 2 includes a cloud platform 21 and an edge layer 22, and the substation secondary system 3 includes a real-time gateway machine 31 and a service gateway machine 32;

[0037] The first safety zone front cluster 11 is communicatively connected to the real-time gateway machine 31, and the second safety zone front cluster 12 is communicatively connected to the service gateway machine 32. The first safety zone front cluster 11 collects real-time status data of the substation secondary system 3 through the real-time gateway machine 31, and the second safety zone front cluster 12 collects graphic model information and monitoring information of the substation secondary system 3 through the service gateway machine 32, and transmits the graphic model information to the cloud platform 21. The cloud platform 21 arranges and configures containers according to the graphic model information and delegates it to the edge layer 22, and generates a secondary device model in the edge layer 22.

[0038] A firewall 13 is provided between the first safety zone front cluster 11 and the second safety zone front cluster 12 .

[0039] The information interaction function on the control master station 1 side is constructed in a cluster manner to complete all data collection tasks. The first safety zone front cluster 11 and the second safety zone front cluster 12 are deployed in the control area of ​​the control master station 1, namely, the safety zone I (generally including the dispatching automation system, relay protection, safety automatic control system, etc.) and the non-control area of ​​the control master station 1, namely, the safety zone II.

[0040] Furthermore, the first safety zone front cluster 11 transmits the real-time status data in a longitudinal encryption manner, specifically a VPN tunnel manner, and the second safety zone front cluster 12 transmits the image model information and monitoring information in a longitudinal encryption manner.

[0041] refer to Figure 2 The edge layer 22 includes multiple edge nodes 221. The cloud platform 21 forms multiple microservices with the acquired multiple graph information and generates a container image. It arranges corresponding microservice containers for the multiple edge nodes 221 according to the preset calling hierarchy relationship, and delegates the microservice containers to each edge node 221. The edge node 221 generates a secondary device model based on the microservice container.

[0042] Specifically, the model information includes model files and graphic files, wherein the model files include SCD files and RCD files, SCD (substation configuration description) refers to the whole station system configuration file in the IEC61850 standard of the substation, RCD (remote configuration description) refers to the remote control configuration description file of the substation, and the graphic files include CIM / G files (common information model / graphical specification), which refers to the graphic description specification of the substation.

[0043] Specifically, container orchestration: According to the performance of each edge node, the multiple image model information (including SCD, RCD and CIM / G files) obtained by the Security Zone II are split into multiple microservices and encapsulated into container images at the control cloud platform layer. Starting from the bottom-level microservice, the corresponding microservice container is orchestrated for each edge node according to the call hierarchy relationship, so as to reduce communication consumption as much as possible.

[0044] Container installation and configuration: After completing container orchestration, download and install the corresponding microservice container for each edge node in the edge layer through the container warehouse located in the platform layer. Before starting the container, configure the communication interface for it based on the DL / T860 communication message to realize the decentralization of graphic model information such as SCD, RCD and CIM / G files.

[0045] Information generation: Based on the new generation of graph information decentralized to each edge node, primary and secondary equipment models, ledger information, etc. are generated in the edge layer of the control cloud rather than the platform layer, thereby realizing general functions such as equipment ledger management and software version control.

[0046] refer to Figure 3 The substation secondary system 3 includes a monitoring host 33, an anti-error host 34, an integrated host 35, a patrol host 36, a measurement and control device 37, and a collection and execution unit 38, and the system also includes a primary device 4.

[0047] Specifically, based on the above system, the first safety zone front cluster 11 generates a one-key sequential control command and sends it to the monitoring host 33 via the real-time gateway 31. The monitoring host 33 sends the one-key sequential control command to the measurement and control device 37. The measurement and control device 37 feeds back the working status data of the primary device 4 collected by the collection execution unit 38 within a preset time to the monitoring host 33 according to the one-key sequential control command. The monitoring host 33 sends the working status data of the primary device 4 and the one-key sequential control command to the anti-error host 34. The anti-error host 34 generates an anti-error verification sequence according to the working status data of the primary device 4 and the one-key sequential control command, and generates an anti-error verification sequence based on the anti-error verification sequence. The error check sequence generates a check result and sends the check result to the monitoring host 33; the monitoring host 33 also sends the one-key sequence control command to the integrated host 35, the integrated host 35 sends the one-key sequence control command to the patrol host 36, the patrol host 36 sends the acquired operation and maintenance patrol and diagnosis result data to the integrated host 35 according to the one-key sequence control command, the integrated host 35 feeds back the operation and maintenance patrol and diagnosis result data to the monitoring host 33, the monitoring host 33 sends the equipment working status data, the check result and the operation and maintenance patrol and diagnosis result data to the first security zone front cluster 11 via the real-time gateway machine 31.

[0048] Information flow is divided into uplink data and downlink data, such as Figure 3As shown, the uplink data is the operation result, the downlink data is the control instruction, and the links, contents and protocols of each information flow transmission are shown in Tables 1 and 2.

[0049] Table 1 One-key sequential control downlink data information flow

[0050]

[0051]

[0052] Table 2 One-key sequential control uplink data information flow

[0053]

[0054]

[0055] Further, refer to Figure 4 The substation secondary system 3 also includes a time synchronization device 301, an interval layer device 302, a process layer device 303 and a station control layer device 304. The time synchronization device 301 provides time for the interval layer device 302, the process layer device 303 and the station control layer device 304. Then, the time synchronization device 301 sends a time synchronization monitoring request to the interval layer device 302, the process layer device 303 and the station control layer device 304. At the same time, the time synchronization device 301 records the time when the time synchronization monitoring request is sent. When 304 receives the time synchronization monitoring request, it will send a message composed of the time of receiving the time synchronization monitoring request and its own current time to the time synchronization device 301. The time synchronization device 301 records the time of receiving the message, and calculates the time deviation based on the time of sending the time synchronization monitoring request, the time when the interval layer device 302, the process layer device 303 and the station control layer device 304 receive the time synchronization monitoring request and their own current time, and the time when the message is received, and sends the time deviation to the second security zone front cluster 12 via the service gateway machine 32.

[0056] The time deviation is calculated by the following formula:

[0057] △T=(T 1 -T 1 +T 4 -T 3 ) / 2;

[0058] Among them, T 1 The time synchronization device records the time when the time synchronization monitoring request is sent, T 2 T is the time when the bay layer device, process layer device or station control layer device receives the time synchronization monitoring request, 3 is the current time of the bay layer device, process layer device or station control layer device, T4 is the moment when the time synchronization device receives the message, and △T is the time deviation.

[0059] The content and protocol of the time synchronization online monitoring information flow are shown in Table 3.

[0060] Table 4 Time synchronization online monitoring information flow

[0061]

[0062]

[0063] Further, refer to Figure 5 The second security zone front-end cluster 12 initiates a graphic model request and sends it to the monitoring host 33 through the service gateway machine 32. The monitoring host 33 parses the pre-configured graphic model file according to the graphic model request, generates a graphic file, and sends the graphic model file and the graphic file to the second security zone front-end cluster 12 via the service gateway machine 32. The second security zone front-end cluster 12 sends the graphic model file and the graphic file to the cloud platform 21, and the cloud platform 21 delegates the configuration file and the graphic file to the edge layer 22.

[0064] Among them, the graphic model files include SCD files and RCD files. SCD (substation configuration description) refers to the whole station system configuration file in the IEC61850 standard of the substation. RCD (remote configuration description) refers to the remote configuration description file of the substation. The graphic files include CIM / G files (common information model / graphical specification), which refers to the graphic description specification of the substation.

[0065] In addition, the control master station can initiate the call of RCD files, and select points to download to the real-time gateway machine, and can call the substation real-time gateway machine RCD for online verification according to needs.

[0066] The content and protocol of the source maintenance information flow are shown in Table 4.

[0067] Table 3 Remote operation and maintenance information flow

[0068]

[0069]

[0070] Further, refer to Figure 6The substation secondary system 3 also includes an intelligent message recording device 39, which collects panoramic data in the substation secondary system 3 and processes it to generate remote control recording data, and the remote control recording data is sent to the second safety zone front cluster via the service gateway machine 32.

[0071] The substation panoramic data mainly includes data that can reflect the operating conditions of the smart substation, as well as alarm information, monitoring video and other data. The substation secondary system uses the collection unit in the intelligent message recording device to collect station control layer and process layer messages to obtain panoramic data. After analysis and processing by the management unit in the device, remote control record events, remote control briefings and remote control message files are formed. The management unit sends the remote control monitoring results to the service gateway through DL / T860, and the service gateway forwards the remote control monitoring results to the control master station through DL / T860. Then the control master station establishes a data monitoring model based on the SCD and RCD files, control automation point table and other information, matches and analyzes the received remote control record events, remote control briefings and remote control message files through information association, and then reproduces the station-side panoramic data through visualization, thereby realizing the monitoring of the primary and secondary equipment of the substation.

[0072] The contents and protocols of the remote control information panoramic monitoring information flow are shown in Table 5.

[0073] Table 5 Remote control information panoramic monitoring information flow

[0074]

[0075] The power grid control master-substation information interaction system provided in the above embodiment at least includes the following

[0076] Beneficial effects:

[0077] (1) The first safety zone front cluster and the second safety zone front cluster are respectively set up at the control master station to realize real-time status monitoring of the substation secondary system and the collection of image model information, and establish a connection with the control cloud to facilitate the cloud platform to obtain image model information for container orchestration, effectively improving the flexibility and operation efficiency of the control master station;

[0078] (2) One-button sequential control of the substation secondary system is realized through the first safety zone front cluster, replacing the traditional manual switching operation and improving the automation level of the substation secondary system;

[0079] (3) Through the time synchronization device, the time synchronization of the substation secondary system equipment is achieved, and the time deviation is calculated and sent to the control master station through the second safety zone front cluster, providing an accurate basis for the time control of the control master station.

[0080] refer to Figure 7In some embodiments, a method for information interaction between a master and a substation of a power grid control is also provided, comprising:

[0081] S1, the front cluster of the first safety zone collects real-time status data of the substation secondary system through the real-time gateway;

[0082] S2. The second safety zone front cluster collects the image model information and monitoring information of the substation secondary system through the service gateway, and transmits the image model information to the cloud platform;

[0083] S3. The cloud platform arranges and configures containers according to the image model information and transfers them to the edge layer, and generates a secondary device model in the edge layer.

[0084] Further, refer to Figure 2 The method also includes: the cloud platform 21 forms multiple microservices and generates container images using the acquired multiple graph model information, arranges corresponding microservice containers for multiple edge nodes 221 according to a preset call hierarchy relationship, and delegates the microservice containers to each edge node 221; the edge node 221 generates a secondary device model based on the microservice container.

[0085] Further, refer to Figure 3 The method further includes: the first safety zone front cluster 11 generates a one-key sequential control command and sends it to the monitoring host 33 via the real-time gateway 31; the monitoring host 33 sends the one-key sequential control command to the measurement and control device 37; the measurement and control device 37 feeds back the working status data of the primary device 4 collected by the collection execution unit 38 within a preset time to the monitoring host 33 according to the one-key sequential control command; the monitoring host 33 sends the working status data of the primary device 4 and the one-key sequential control command to the anti-error host 34; the anti-error host 34 generates an anti-error verification sequence according to the working status data of the primary device 4 and the one-key sequential control command, and based on the The anti-error verification sequence generates a verification result and sends the verification result to the monitoring host 33; the monitoring host 33 also sends the one-key sequence control command to the integrated host 35, the integrated host 35 sends the one-key sequence control command to the patrol host 36, the patrol host 36 sends the acquired operation and maintenance patrol and diagnosis result data to the integrated host 35 according to the one-key sequence control command, the integrated host 35 feeds back the operation and maintenance patrol and diagnosis result data to the monitoring host 33, the monitoring host 33 sends the equipment working status data, verification result and the operation and maintenance patrol and diagnosis result data to the first security zone front cluster 11 via the real-time gateway machine 31.

[0086] Further, refer to Figure 4 , the method further comprises:

[0087] The time synchronization device 301 provides time for the interval layer device 302, the process layer device 303 and the station control layer device 304, and then the time synchronization device 301 sends a time synchronization monitoring request to the interval layer device 302, the process layer device 303 and the station control layer device 304, and at the same time, the time synchronization device 301 records the time of sending the time synchronization monitoring request. When the interval layer device 302, the process layer device 303 and the station control layer device 304 receive the time synchronization monitoring request, they form a message with the time of receiving the time synchronization monitoring request and their own current time and send it to the time synchronization device 301. The time synchronization device 301 records the time of receiving the message, and calculates the time deviation based on the time of sending the time synchronization monitoring request, the time when the interval layer device 302, the process layer device 303 and the station control layer device 304 receive the time synchronization monitoring request and their own current time, and sends the time deviation to the second security zone front cluster 12 via the service gateway machine 32.

[0088] Further, refer to Figure 5 The method also includes: the second security zone front-end cluster 12 initiates a graphic model request and sends it to the monitoring host 33 through the service gateway machine 32, the monitoring host 33 parses the pre-configured graphic model file according to the graphic model request, generates a graphic file, and sends the graphic model file and the graphic file to the second security zone front-end cluster 12 via the service gateway machine 32, the second security zone front-end cluster 12 sends the graphic model file and the graphic file to the cloud platform 21, and the cloud platform 21 delegates the configuration file and the graphic file to the edge layer 22.

[0089] Further, refer to Figure 6 The method also includes: the intelligent message recording device 39 collects panoramic data in the substation secondary system and processes it to generate remote control recording data, and the remote control recording data is sent to the second safety zone front cluster 12 via the service gateway machine 32.

[0090] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A power grid control master-substation information interaction system, characterized in that: Including control master station, control cloud and substation secondary system; The control master station includes a first safety zone front cluster and a second safety zone front cluster, the control cloud includes a cloud platform and an edge layer, and the substation secondary system includes a real-time gateway and a service gateway; The first safety zone front cluster is connected to the real-time gateway machine for communication, and the second safety zone front cluster is connected to the service gateway machine for communication. The first safety zone front cluster collects real-time status data of the substation secondary system through the real-time gateway machine, and the second safety zone front cluster collects image model information and monitoring information of the substation secondary system through the service gateway machine, and transmits the image model information to the cloud platform. The cloud platform performs container arrangement and configuration according to the image model information and transfers it to the edge layer, and generates a secondary device model in the edge layer. The substation secondary system includes a monitoring host, an anti-error host, an integrated host, a patrol host, a measurement and control device, and a collection and execution unit, and the system also includes primary equipment; The first safety zone front cluster generates a one-key sequence control command and sends it to the monitoring host via the real-time gateway machine. The monitoring host sends the one-key sequence control command to the measurement and control device. The measurement and control device feeds back the primary equipment working status data collected by the collection execution unit within a preset time to the monitoring host according to the one-key sequence control command. The monitoring host sends the primary equipment working status data and the one-key sequence control command to the anti-error host. The anti-error host generates an anti-error verification sequence according to the primary equipment working status data and the one-key sequence control command, generates a verification result based on the anti-error verification sequence, and sends the verification result to the monitoring host. The monitoring host also sends the one-key sequence control command to the integrated host, and the integrated host sends the one-key sequence control command to the patrol host. The patrol host sends the acquired operation and maintenance patrol and diagnosis result data to the integrated host according to the one-key sequence control command. The integrated host feeds back the operation and maintenance patrol and diagnosis result data to the monitoring host. The monitoring host sends the equipment working status data, verification results and the operation and maintenance patrol and diagnosis result data to the first security zone front cluster via the real-time gateway machine.

2. The system according to claim 1, characterized in that A firewall is provided between the first safety zone front cluster and the second safety zone front cluster.

3. The system according to claim 1, characterized in that The first safety zone front cluster transmits the real-time status data in a vertical encryption manner, and the second safety zone front cluster transmits the image model information and monitoring information in a vertical encryption manner.

4. The system according to claim 1, characterized in that The edge layer includes multiple edge nodes. The cloud platform forms multiple microservices and generates container images using the acquired multiple graph model information. It arranges corresponding microservice containers for the multiple edge nodes according to the preset calling hierarchy relationship, and delegates the microservice containers to each edge node. The edge node generates a secondary device model based on the microservice container.

5. The system according to claim 1, characterized in that The substation secondary system also includes a time synchronization device, an interval layer device, a process layer device and a station control layer device. The time synchronization device provides time for the interval layer device, the process layer device and the station control layer device. Then, the time synchronization device sends a time synchronization monitoring request to the interval layer device, the process layer device and the station control layer device. At the same time, the time synchronization device records the time of sending the time synchronization monitoring request. When the interval layer device, the process layer device and the station control layer device receive the time synchronization monitoring request, the time of receiving the time synchronization monitoring request and their own current time form a message and send it to the time synchronization device. The time synchronization device records the time of receiving the message, and calculates the time deviation based on the time of sending the time synchronization monitoring request, the time when the interval layer device, the process layer device and the station control layer device receive the time synchronization monitoring request and their own current time, and the time when the message is received, and sends the time deviation to the second safety zone front cluster via the service gateway machine.

6. The system according to claim 5, characterized in that The time deviation is calculated by the following formula: △T=(T1-T2+T4-T3) / 2; Among them, T1 is the moment when the time synchronization device records sending the time synchronization monitoring request, T2 is the moment when the interval layer device, process layer device or station control layer device receives the time synchronization monitoring request, T3 is the current moment of the interval layer device, process layer device or station control layer device itself, T4 is the moment when the time synchronization device receives the message, and △T is the time deviation.

7. The system according to claim 1, characterized in that The second security zone front cluster initiates a graph model request and sends it to the monitoring host through the service gateway machine. The monitoring host parses the pre-configured graph model file according to the graph model request, generates a graph file, and sends the graph model file and the graph file to the second security zone front cluster through the service gateway machine. The second security zone front cluster sends the graph model file and the graph file to the cloud platform, and the cloud platform transfers the graph model file and the graph file to the edge layer. The substation secondary system also includes an intelligent message recording device, which collects panoramic data in the substation secondary system and processes it to generate remote control recording data, and the remote control recording data is sent to the second safety zone front cluster via the service gateway.

8. A method for information interaction between a master station and a substation of a power grid control system using the system as claimed in any one of claims 1 to 7, characterized in that: include: The first safety zone front cluster collects real-time status data of the substation secondary system through the real-time gateway; The second safety zone front cluster collects the image model information and monitoring information of the substation secondary system through the service gateway, and transmits the image model information to the cloud platform; The cloud platform performs container arrangement and configuration according to the image model information and transfers it to the edge layer, and generates a secondary device model in the edge layer; The method further comprises: The first safety zone front cluster generates a one-key sequence control command and sends it to the monitoring host via the real-time gateway machine. The monitoring host sends the one-key sequence control command to the measurement and control device. The measurement and control device feeds back the primary equipment working status data collected by the collection execution unit within a preset time to the monitoring host according to the one-key sequence control command. The monitoring host sends the primary equipment working status data and the one-key sequence control command to the anti-error host. The anti-error host generates an anti-error verification sequence according to the primary equipment working status data and the one-key sequence control command, generates a verification result based on the anti-error verification sequence, and sends the verification result to the monitoring host. The monitoring host also sends the one-key sequence control command to the integrated host, and the integrated host sends the one-key sequence control command to the patrol host. The patrol host sends the acquired operation and maintenance patrol and diagnosis result data to the integrated host according to the one-key sequence control command. The integrated host feeds back the operation and maintenance patrol and diagnosis result data to the monitoring host. The monitoring host sends the equipment working status data, verification results and the operation and maintenance patrol and diagnosis result data to the first security zone front cluster via the real-time gateway machine.

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