Data Penetration Retrieval Method and System for Autonomous and Controllable Substations in Centralized Control Mode

Abstract

The present invention discloses a data penetration retrieval system and method for a self - controllable substation under a centralized control mode, including a data interaction mode based on file service, dynamic data set service, RPC data browsing service, and picture retrieval service. Matching different business scenarios and comprehensive business requirements, a templatized signal batch - processing mechanism is adopted to optimize the data retrieval process, effectively shunt massive multi - source heterogeneous complex data, efficiently converge real - time / quasi - real - time panoramic data at the substation end, realize data transfer and network - wide sharing of real - time data, historical information, and fault information between the master and slave stations, and provide technical support and decision - making basis for the daily operation and maintenance, abnormal handling, information perception, and fault disposal of the centralized control station.

Description

Technical Field

[0001] The present invention relates to the technical field of digital transformation of electric power systems, and in particular to a method and system for data penetration and reading of a new generation of autonomously controllable substations in a centralized control mode. Background Art

[0002] The rapid development of intelligent equipment technology in the new generation of autonomous and controllable substations has brought new challenges to the data collection method of the centralized control station monitoring system. The existing information collection strategies, equipment modeling methods and information transmission dimensions can no longer meet the needs of panoramic monitoring and deep data mining and analysis. It is urgent to strengthen the main station side to enhance the functions of precise maintenance, diagnostic decision-making and information perception, solve the long-standing problems of data resource islands, incomplete equipment monitoring, insufficient digital support means, liberate front-line team members, and eliminate the contradiction between the rapid growth of equipment quantity and the inefficient operation and maintenance management mode. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a data penetration and retrieval method for a new generation of autonomous and controllable substations under centralized control mode, matching different business scenarios, integrating business needs, and using a templated signal batch processing mechanism to optimize the dynamic data retrieval process, effectively filtering massive multi-source heterogeneous complex data, and efficiently processing and storing data, thereby improving the situational awareness of the operating status of substation equipment.

[0004] Technical solution: Data penetration and retrieval system for autonomous controllable substations in centralized control mode, including model service based on the whole station description configuration SCD file of the new generation centralized control station monitoring system, master-substation interaction service based on DL / T860 communication specification and data retrieval service based on the new generation autonomous controllable substation;

[0005] The model service of the whole station description configuration SCD file based on the new generation centralized control station monitoring system includes: logical node status information modeling, file service access path modeling, and signal data reference modeling;

[0006] The master-substation interactive services based on the DL / T860 communication specification include: remote file service, dynamic data set service, RPC data retrieval service, and screen retrieval service;

[0007] The data retrieval service based on the new generation of autonomous and controllable substations includes: historical data retrieval, equipment operation status retrieval, online monitoring data retrieval, fault report retrieval, fault analysis report retrieval, and real-time data retrieval.

[0008] In the model service of the SCD file for the full-station description configuration based on the new-generation integrated substation control system, the modeling of the logical node status information includes extracting the service information of the remote service for the model configuration of the substation monitoring host itself interacting with the master station, and the service information includes the logical node status information of the remote service; the modeling of the file service access path includes extracting the integrated application host configuration model and initializing the client access path and IED access path of the file; the modeling of the signal data reference includes extracting the model information of all secondary equipment in the substation, and the model information of all secondary equipment in the substation includes data set information, report control block information, online monitoring information of secondary equipment, and online monitoring information of secondary equipment.

[0009] In the master-slave station interaction service based on the DL / T860 communication specification, the remote file service includes supporting the list query mechanism, file query mechanism, report trigger mechanism, and write file query mechanism; the list query mechanism sends the GetFileDirctory service instruction to the data communication gateway according to the file service type, and the gateway forwards it to the in-station IED. The data communication gateway receives the file list response data of the in-station IED and forwards it to the integrated substation control system; the file query mechanism sends the GetFile service request to the data communication gateway by concatenating the file full path with the file type and the file name obtained by the list query. The gateway forwards it to the in-station IED, and the data communication gateway receives the file response stream data of the in-station IED and forwards it to the integrated substation control system; the report trigger mechanism triggers the retrieval through the file update tele-signal configured in the remote service logical node. When the in-station IED detects that the file has changed, it triggers the corresponding tele-signal to be sent to the integrated substation control system through the Report service; the write file query mechanism generates a retrieval command file according to the relevant service. The retrieval command is an E-file format file, and the file naming follows the rule of service identifier_operation object_operation identifier_command serial number.cmd. The corresponding result file is generated at the station end according to the command file.

[0010] In the master-slave station interaction service based on the DL / T860 communication specification, the dynamic data set service includes the master station realizing the data retrieval of the substation by dynamically creating a non-persistent data set. The master station can retrieve data in two ways: reading the data set value and enabling the report control block. After the master station finishes data browsing, it needs to actively delete the corresponding non-persistent data set. When the communication link is interrupted, the data communication gateway needs to actively release all the created non-persistent data sets.

[0011] In the master-slave station interaction service based on the DL / T860 communication specification, the RPC data retrieval service includes obtaining, through the retrieval model primitive in DL / T860, the model in which the substation describes its own retrievable capabilities. This model is used to describe the classification method of the retrievable data and can be customized or extended according to the needs of local users. After obtaining the model, through the method of retrieving data, a method of retrieving data is initiated to the data communication network shutdown. After the data communication network shutdown parses it, it initiates a call of the same method to the integrated application host. The integrated application host responds with the retrieved data to the data communication network shutdown, and after the data communication network shutdown parses it, it is remotely transmitted to the master station.

[0012] In the master-slave station interaction service based on the DL / T860 communication specification, the picture retrieval service includes automatically generating the retrieved wiring diagram and sectional diagrams of intervals according to the graphic templates of the centralized control system, and displaying the complete real-time data in the substation; refreshing the corresponding pictures in real time according to the data information forwarded by the substation, coloring and displaying according to the data quality code, and distinguishing the local pictures and remote pictures through marks such as background watermarks.

[0013] The historical data retrieval of the data retrieval service based on the new generation of independent and controllable substations includes the substation side querying the analog quantities, status quantities, SOE and other data of primary equipment, secondary equipment and auxiliary equipment according to the type of the issued command file, generating a result file, and transmitting it to the master station through data stream for parsing, and then storing it in the shared file server in the form of a file; the centralized control system supports displaying historical data in multiple ways such as curves and lists by parsing the file data;

[0014] The retrieval of the equipment operation status and on-line monitoring data includes the substation side uploading data such as the RUNSTATE operation condition, COMMSTATE communication status, CURRENT current, VOLTAGE voltage, POWER power, TEMPRATURE temperature, LIGHT intensity, etc. according to the templatized configuration. After the centralized control system parses it, it stores it as an E file, obtains the attribute structure of the equipment operation status and on-line monitoring data by retrieving the secondary equipment model, and displays the data;

[0015] The retrieval of the fault report and the fault analysis report includes the integrated application host converging the remote signal quantity information characterizing the power grid fault characteristics at the fault moment, analyzing and mining the data sources and data types, extracting the fault location, fault current, fault phase, fault time sequence, setting value and sectional information before and after the fault of the pressure plate through the internal logical association relationship, and remotely transmitting it to the centralized control system through the file service. The centralized control system comprehensively displays the fault information in combination with the fault recording curve and the fault time sequence diagram;

[0016] The real-time data access includes the collection and control system selecting measuring points to complete the data assembly of the dynamic data set, and supporting the data assembly of the remote signal and remote measurement measuring points of different IEDs in the same dynamic data set; after the dynamic data set is created, the model information and measuring point information of the dynamic data set are stored in the database of the collection and control station monitoring system, and the association operation between the measuring point and the data set is automatically performed; the collection and control system accesses the dynamic data in two ways: manually triggering to read the data set value and enabling the report control block for publish-subscribe, and supports actively deleting the corresponding non-persistent dynamic data set.

[0017] A data penetration access method for a self-controlled substation in the collection and control mode, characterized by comprising the following steps:

[0018] (1) The collection and control station monitoring system provides an interactive service through the data communication gateway deployed on the substation side, and the collection and control station monitoring system sends an instruction to the data communication gateway through the master-slave station communication module according to the type of the interactive service;

[0019] (2) The data communication gateway forwards the instruction to the integrated application host, and the integrated application host returns the data information related to the instruction to the collection and control station monitoring system, and the collection and control station monitoring system realizes data access.

[0020] Further, the data penetration access method further includes the SCD file modeling of the collection and control station monitoring system, specifically:

[0021] 1) The substation performs model configuration to generate an SCD full-station configuration file;

[0022] 2) After the collection and control station monitoring system extracts the SCD full-station configuration file, it parses it and stores the parsed result in the master station database for use by the master-slave station communication module when participating in the interactive service;

[0023] 3) According to the data access requirement, the corresponding information in the master station database is retrieved and assembled into a service request, and an interaction is performed with the data communication gateway to achieve the consistency of the master-slave station models in data access.

[0024] Further, the SCD full-station configuration file includes remote service logic node status information, full-station secondary equipment model information, access path information, report control block information when the master-slave station establishes a link, and data references of report trigger signals.

[0025] Further, the full-station secondary equipment model information includes: data set information, client access path and IED access path information, report control block information, secondary equipment online monitoring information, and secondary equipment online detection information.

[0026] Further, the interactive service includes a remote file service, and the remote file service includes at least one of the following: list query mechanism, file query mechanism, report trigger mechanism, and write file query mechanism;

[0027] The list query mechanism is that the centralized control station monitoring system sends a GetFileDirctory service instruction to the data communication network shutdown device according to the file service type. The data communication network shutdown device forwards it to the in-station IED, receives the file list response data from the in-station IED, and forwards it to the centralized control station monitoring system;

[0028] The file query mechanism is that the centralized control station monitoring system splices the file full path with the file name obtained through file type and list query to send a GetFile service request to the data communication network shutdown device. The data communication network shutdown device forwards it to the in-station IED, receives the file response stream data from the in-station IED, and forwards it to the centralized control station monitoring system. After the centralized control station monitoring system parses the stream data, it stores the file in the file server;

[0029] The report trigger mechanism is that when the in-station IED detects that a file has changed, it triggers the corresponding remote signal to be sent to the centralized control station monitoring system through the Report service. After the master station parses the remote signal, it initiates file retrieval using the list query mechanism and the file query mechanism;

[0030] The write file query mechanism is that the centralized control station monitoring system generates a retrieval command file according to the service. The retrieval command is an E file format file, and the file naming follows the rule of service identifier_operation object_operation identifier_command serial number.cmd. The data communication network shutdown device receives the SetFile write file request from the centralized control station monitoring system, writes the command file into the in-station IED. After the in-station IED receives and parses the command file, it aggregates the data in the station-side integrated application host database. After the data aggregation is completed, it uses the report trigger mechanism to notify the centralized control station monitoring system and responds to the file query instruction of the centralized control station monitoring system, forwarding the data to the centralized control station monitoring system.

[0031] Furthermore, the interaction service includes a dynamic data set service, and the dynamic data set service includes the following steps:

[0032] 1) The dynamic data set client software of the centralized control station monitoring system names the newly created data set and determines the operation type, where the operation type includes at least one of the following: creating a dynamic data set, deleting a dynamic data set, reading a dynamic data set, and heartbeat operation;

[0033] 2) Select the dynamic data set type according to the operation type, where the dynamic data set type includes a temporary data set and a permanent data set;

[0034] 3) Select the measuring points included in the dynamic data set, complete the data assembly of the dynamic data set, and support the encapsulation of remote signal and telemetry measuring points of different IEDs in the same dynamic data set;

[0035] 4) When the operation type is to create a dynamic data set, use the CreateDataset service primitive in DL / T860; when the operation type is to delete a dynamic data set, use the DeleteDataSet service primitive to send an operation request to the substation;

[0036] 5) After successfully creating the dynamic data set, store the dynamic data set model information and measurement point information in the database of the centralized control station monitoring system, and automatically perform the association operation between the measurement points and the data set;

[0037] 6) The centralized control station monitoring system can view the dynamic data in two ways: manually triggering to read the data set value and enabling the report control block for publish-subscribe. After the data browsing is completed, the centralized control station monitoring system actively deletes the corresponding temporary dynamic data set.

[0038] Furthermore, the interaction service includes the RPC data viewing service, and the RPC data viewing service includes the following steps:

[0039] a) The centralized control station monitoring system sends a method to obtain the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device sends a call for the same method to the integrated application host;

[0040] b) The integrated application host responds with the data of the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system;

[0041] c) The client of the centralized control station monitoring system selects the model to be viewed, splices the viewing parameter reqData, and reqData adopts a two-level segmented format of "IED.viewing type" separated by ". ". After the viewing parameter is determined, it sends a method to obtain the viewing data to the data communication network shutdown device, and after parsing, the data communication network shutdown device sends a call for the same method to the integrated application host;

[0042] d) The integrated application host responds with the viewing data to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system. The centralized control station monitoring system displays the viewing data, writes the viewing data into an E-format file, and saves it to the file server through the file service.

[0043] Furthermore, the interaction service includes the picture viewing service. The picture viewing service automatically generates wiring diagrams and sectional diagrams viewed by the centralized control station monitoring system according to the graphic templates of the centralized control system, displays the complete real-time data in the substation. The picture viewing service also collects the picture measurement and graphic element data of the integrated application host, and remotely transmits them to the master station to refresh the data to obtain the picture measurement and graphic element data. After the browsing is completed, it calls the service request to close the picture data and supports the remote transmission of graphic files by the file service.

[0044] Further, the data access includes historical data access, equipment operation status access, online monitoring data access, fault report access, fault analysis report access, and real-time data access;

[0045] The historical data access includes the generation of an access command file by the centralized control station monitoring system, synchronization of the access command file to the file server of the centralized control station monitoring system, sending it to the data communication network shutdown device through the master-slave station communication module of the centralized control station monitoring system, the data communication network shutdown device transmitting the file to the integrated application host, the integrated application host parsing the command file, obtaining historical data from the database of the integrated application host, generating a result file and then sending a file generation success signal, uploading it to the centralized control station monitoring system through the data communication network shutdown device. After the centralized control station monitoring system monitors the signal, it calls the 860 file service to send an instruction to the data communication network shutdown device, the data communication network shutdown device forwarding the command to the integrated application host, and the integrated application host sending the file stream data to the data communication network shutdown device and transmitting it to the centralized control station monitoring system;

[0046] The equipment operation status access and online monitoring data access include the centralized control station monitoring system sending an RPC model service instruction to the data communication network shutdown device through the master-slave station communication module, the data communication network shutdown device transmitting the instruction to the integrated application host, the integrated application host returning RPC model information to the data communication network shutdown device after responding to the instruction, the data communication network shutdown device transmitting it to the centralized control station monitoring system, the centralized control station monitoring system selecting the operation status and online monitoring model information in the RPC model, sending an RPC data service instruction to the data communication network shutdown device, the data communication network shutdown device transmitting the instruction to the integrated application host, and the integrated application host returning RPC data information to the centralized control station monitoring system;

[0047] The fault report access and fault analysis report access include the centralized control station monitoring system selecting the file service access path, selecting the start time and sending it to the data communication network shutdown device through the master-slave station communication module, the data communication network shutdown device forwarding it to the integrated application host, the integrated application host checking the local file data and then returning the file list data to the data communication network shutdown device, the data communication network shutdown device transmitting the data to the centralized control station monitoring system, the centralized control station monitoring system selecting the file to be summoned through the file list, sending a file service to obtain the file through the master-slave station communication module, the data communication network shutdown device forwarding the command to the integrated application host, and the integrated application host returning the file stream data to the data communication network shutdown device and the data communication network shutdown device uploading it to the centralized control station monitoring system.

[0048] The real-time data access includes that the centralized control station monitoring system selects measurement points, defines the attributes of the dynamic data set as temporary or permanent and defines the name of the dynamic data set, sends the service for creating the data set to the master-slave station communication module, the master-slave station communication module sends it down to the data communication network shutdown device, the data communication network shutdown device generates a dynamic data set after parsing the command, and returns the creation result to the master station; if the creation is successful, the centralized control station monitoring system enables the corresponding dynamic data set, and the data communication network shutdown device uploads the data in the dynamic data set to the centralized control station monitoring system periodically.

[0049] Beneficial effects: The data penetration access method for the new generation of independently controllable substations in the centralized control mode of the present invention comprehensively monitors a large amount of multi-source heterogeneous complex data based on the new generation of centralized control station monitoring system, and efficiently processes and stores the data. By aggregating the real-time / quasi-real-time panoramic data at the station end, it realizes the information flow and full-network sharing of model data, real-time data, off-line historical data, picture data and fault data between the master and slave stations, and provides technical support and decision-making basis for the daily operation and maintenance, abnormal handling, information perception and fault analysis of the new generation of self-service controllable substations. Brief Description of the Drawings

[0050] Figure 1 is the data penetration access software architecture for the new generation of independently controllable substations in the centralized control mode;

[0051] Figure 2 is the master-slave station interaction process of the file list query mechanism;

[0052] Figure 3 is the master-slave station interaction process of the report trigger mechanism;

[0053] Figure 4 is the master-slave station interaction process of the write file query mechanism;

[0054] Figure 5 is the master-slave station interaction process of the dynamic data set service;

[0055] Figure 6 is the master-slave station interaction process of the RPC data access. Detailed Embodiments

[0056] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0057] A data penetration access method for the new generation of independently controllable substations in the centralized control mode includes the steps:

[0058] 1. The substation monitoring host configures the business information for the remote service to interact with the master station, and the integrated application host configures the model, including the business information for interacting with the master station through the remote service. The centralized control station monitoring system extracts the status information of the remote service logic node dsDin included in the integrated application host IED through SCD file modeling, reports the control block information, splices to obtain the data reference of the trigger signal, and initializes the client access paths of various files and the IED access path. When the master and slave stations establish a link, the corresponding report control block information is enabled.

[0059] 1) Modeling of the status information of the remote service logic node

[0060] Attribute Name Logical Node Class Attribute Type Signal Description Ind1 GGIO SPS SCD Configuration Update Ind2 GGIO SPS Ledger Configuration Update Ind3 GGIO SPS RCD Model Update Ind4 GGIO SPS Version Information Update Ind5 GGIO SPS Historical Data File Ready Ind6 GGIO SPS Secondary Equipment Status Monitoring and Analysis Report Update Ind7 GGIO SPS Intelligent Alarm Report Update Ind8 GGIO SPS Fault Analysis Report Update Ind9 GGIO SPS Graphic File Update Ind10 GGIO SPS Anti-maloperation Logic Rule File Update

[0061] Table 1 Remote service logic node

[0062] 2) Modeling of the file service access path

[0063]

[0064]

[0065] Table 2 File service access path

[0066] 3) Modeling of the data reference

[0067] Extract the FCDA information of the datasets under the logical devices LD0, PROT, and RCD according to the corresponding meanings of the dataset names defined in the template library, and obtain the data model reference according to the model instantiation information.

[0068] The centralized control station monitoring system obtains the signal data reference by means of data splicing:

[0069] DATA_REF = IEDName + FCDA.LdInst + FCDA.prefix + FCDA.LnClass + FCDA.doName + FCDA.fc

[0070] 2. A data communication gateway is deployed on the substation side to provide remote services and realize the information interaction between the master station and the monitoring host and the integrated application host. The remote service adopts the DL / T 860 communication message specification and the DL476 communication message specification, and supports model services, data browsing services, picture viewing services, offline data services, and operation and maintenance services, etc.

[0071] 3. The interaction mechanism of the remote file service mainly includes a list query mechanism, a file query mechanism, a report trigger mechanism, and a write file query mechanism. Through the effective integration of the four mechanisms, file interaction is achieved among the substation control system, the data communication network shutdown device, and the in-station IEDs, including remote access to historical data, intelligent alarm briefings, fault analysis reports, model files, and secondary equipment status analysis reports.

[0072] 4. The dynamic data set service enables the substation data access by the master station through dynamically creating non-persistent data sets. The master station can access data in two ways: reading the data set value and enabling the report control block. After the master station finishes browsing the data, it needs to actively delete the corresponding non-persistent data set. When the communication link of the data communication network shutdown device is interrupted, it needs to actively release all the created non-persistent data sets.

[0073] 5. The RPC data access service obtains the model by which the substation describes its own access capabilities through the mGetCallModel primitive in DL / T860. This model is used to describe the classification method of the accessed data and can be customized or extended according to the needs of local users. After obtaining the model, through the mGetCallData method for accessing data, a request for accessing data is sent to the data communication network shutdown device. After parsing, the data communication network shutdown device initiates the same method call to the integrated application host. The integrated application host responds with the accessed data to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the master station.

[0074] 6. The picture access service supports collecting the picture measurement and graphic element data of the integrated application host according to the DL / T476 protocol and remotely transmitting them to the master station. The refreshed data uses SOA: / / display(gfilename = picture name) to obtain the picture measurement and graphic element data. After browsing is completed, the service request SOA: / / stopdata(gfilename = picture name) is called to close the picture data, and it also supports the file service to remotely transmit graphic files.

[0075] The steps in step 3 include the following steps:

[0076] 1) The application scenarios of the list query mechanism include locating the file names of time-stamped files such as fault recording reports, fault analysis reports, and intelligent alarm briefings. The substation control system sends the GtFileDirctory service instruction to the data communication network shutdown device according to the file service type, and the network shutdown device forwards it to the in-station IEDs; the data communication network shutdown device receives the file list response data from the in-station IEDs and forwards it to the substation control system. The data interaction process of the list query mechanism is as Figure 1 shown:

[0077] 2) The application scenarios of the file query mechanism include remote access to entity files such as fault recording reports, fault analysis reports, and intelligent alarm briefings. The centralized control station monitoring system splices the full file path according to the file type and the file name obtained by the list query, and sends a GetFile service request to the data communication network shutdown device. The network shutdown device forwards it to the in-station IED; the data communication network shutdown device receives the file response stream data from the in-station IED and forwards it to the centralized control station monitoring system. After the centralized control station monitoring system parses the stream data, it stores the file in the file server. The data interaction process of the file query mechanism is as Figure 2 shown:

[0078] 3) The application scenarios of the report trigger mechanism include triggering access for file updates configured in the remote service logic node in step 1. When the in-station IED detects that the file has changed, it triggers the corresponding tele-signal to be sent to the centralized control station monitoring system through the Report service. After the master station parses the tele-signal, it initiates file access using steps 1) and 2). The data interaction process of the report trigger mechanism is as Figure 3 shown:

[0079] 4) The application scenario of the write file query mechanism is historical data access, including sampling value historical data access and alarm historical data access. The centralized control station monitoring system generates an access command file according to relevant services. The access command is an E file format file, and the file naming follows the rule of service identifier_operation object_operation identifier_command serial number.cmd. The command attributes of the command file are shown in Table 3.

[0080]

[0081] Table 3 Description of access command attributes

[0082] The data communication network shutdown device receives the SetFile write file request from the centralized control station monitoring system, writes the command file into the in-station IED. After the in-station IED receives and parses the command file, it aggregates the data in the station-side integrated application host database. After the data aggregation is completed, it uses the report trigger mechanism in step 3) to notify the centralized control station monitoring system, and responds to the file query instruction of the centralized control station monitoring system, and forwards the data to the centralized control station monitoring system. The data interaction process of the write file query mechanism is as Figure 4 shown:

[0083] The steps in step 4 include the following steps, and the operation process is as Figure 5 shown:

[0084] 1) The dynamic data set client software of the centralized control station monitoring system names the newly created data set and determines the operation type, including creating a dynamic data set, deleting a dynamic data set, reading a dynamic data set, and heartbeat operation;

[0085] 2) Select the dynamic data set type, including temporary data set and permanent data set;

[0086] 3) Select the measuring points included in the dynamic data set to complete the data assembly of the dynamic data set, and support the encapsulation of the telemetry and telecontrol measuring points of different IEDs in the same dynamic data set.

[0087] 4) Use the CreateDataset service primitive in DL / T860 to create a dynamic data set, and use the DeleteDataSet service primitive to delete the dynamic data set to send an operation request to the substation.

[0088] 5) After successful creation, store the dynamic data set model information and measuring point information in the database of the centralized control station monitoring system, and automatically perform the association operation between the measuring points and the data set.

[0089] 6) The centralized control station monitoring system can view the dynamic data in two ways: manually trigger to read the data set value and publish / subscribe to enable the report control block. After the data browsing is completed, the centralized control station monitoring system actively deletes the corresponding non-persistent dynamic data set.

[0090] The step 5 includes the following steps, and the data interaction process is as Figure 6 shown:

[0091] 1) The centralized control station monitoring system sends a method to obtain the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device sends the same method call to the integrated application host;

[0092] 2) The integrated application host responds to the data of the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system. The definition of the viewing model is shown in Table 4;

[0093]

[0094]

[0095] Table 4 Definition of the viewing model

[0096] 3) The integrated application host responds to the data of the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system. The definition of the viewing model is shown in Table 4;

[0097] 4) The client of the centralized control station monitoring system selects the model to be viewed, splices the viewing parameter reqData, and reqData adopts a two-level segmented format of "IED.viewing type" separated by ".". After the viewing parameter is determined, send a method to obtain the viewing data to the data communication network shutdown device, and after parsing, the data communication network shutdown device sends the same method call to the integrated application host;

[0098] 5) The integrated application host requests access to data from the data communication network shutdown response. After parsing by the data communication network shutdown device, the data is remotely transmitted to the centralized control station monitoring system. The centralized control station monitoring system displays the accessed data and writes the accessed data into an E-format file, which is saved to the file server through the file service.

[0099] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of the present application can be implemented in various computer languages. For example, object-oriented programming languages such as Java and interpreted scripting languages such as JavaScript.

[0100] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one or more flows and / or Figure 1 blocks.

[0101] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one or more flows and / or Figure 1 blocks.

[0102] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one or more flows and / or Figure 1 blocks.

[0103] Although the preferred embodiments of the present application have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once they learn of the basic creative concept. Therefore, the appended claims are intended to be interpreted to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present application.

[0104] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A method for data penetration retrieval of an autonomous and controllable substation in a centralized control mode, characterized in that It includes the following steps: (1) The centralized control station monitoring system provides an interactive service through the data communication network shutdown device deployed on the substation side. The centralized control station monitoring system sends instructions to the data communication network shutdown device through the master-slave station communication module according to the type of the interactive service; (2) The data communication network shutdown device forwards the instructions to the integrated application host, and the integrated application host returns the data information related to the instructions to the centralized control station monitoring system, and the centralized control station monitoring system realizes data retrieval; The interactive service includes a dynamic data set service, and the dynamic data set service includes the following steps: 1) The dynamic data set client software of the centralized control station monitoring system names the newly created data set and determines the operation type, and the operation type includes at least one of the following: creating a dynamic data set, deleting a dynamic data set, reading a dynamic data set, and heartbeat operation; 2) Select the dynamic data set type according to the operation type, and the dynamic data set type includes a temporary data set and a permanent data set; 3) Select the measuring points included in the dynamic data set, complete the data assembly of the dynamic data set, and support the encapsulation of the telemetry and remote signaling measuring points of different IEDs in the same dynamic data set; 4) When the operation type is to create a dynamic data set, use the CreateDataset service primitive in DL / T860. When the operation type is to delete a dynamic data set, use the DeleteDataSet service primitive to make an operation request to the substation; 5) After successfully creating the dynamic data set, store the dynamic data set model information and the measuring point information in the database of the centralized control station monitoring system, and automatically perform the association operation between the measuring points and the data set; 6) The centralized control station monitoring system retrieves the dynamic data in two ways: manually triggering to read the data set value and enabling the report control block of publish-subscribe. After the data browsing is completed, the centralized control station monitoring system actively deletes the corresponding temporary dynamic data set; The interactive service includes an RPC data retrieval service, and the RPC data retrieval service includes the following steps: a) The centralized control station monitoring system initiates a method to obtain the retrieval model to the data communication network shutdown device, and after parsing, the data communication network shutdown device initiates a call to the same method to the integrated application host; b) The integrated application host responds to the data of the retrieval model to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system; c) The client of the centralized control station monitoring system selects the model to be retrieved, splices the retrieval parameter reqData, and reqData adopts a two-level segmentation format of "IED.retrieval type" separated by ". ". After the retrieval parameter is determined, it initiates a method to obtain the retrieval data to the data communication network shutdown device, and after parsing, the data communication network shutdown device initiates a call to the same method to the integrated application host; d) The integrated application host responds to the retrieval data to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system. The centralized control station monitoring system displays the retrieval data, writes the retrieval data into an E-format file, and saves it to the file server through the file service.

2. The data penetration retrieval method for a self - controllable substation under the centralized control mode according to claim 1, wherein, The data penetration retrieval method further includes the SCD file modeling of the centralized control station monitoring system, specifically: 1) The substation performs model configuration to generate an SCD full-station configuration file; 2) After the centralized control station monitoring system extracts the SCD full-station configuration file, it is parsed and stored in the master station database for use by the master-slave station communication module when participating in the interaction service; 3) According to the data access requirement, the corresponding information in the master station database is retrieved and assembled into a service request, which is interacted with the data communication network shutdown device to achieve the consistency of the master-slave station models during data access.

3. The data penetration retrieval method for a self - controllable substation under the centralized control mode according to claim 2, characterized in that, The SCD full-station configuration file includes remote service logic node status information, full-station secondary device model information, access path information, report control block information during master-slave station link establishment, and data references of report trigger signals.

4. The data penetration access method for a self - controllable substation under the centralized control mode according to claim 1, wherein The interaction service includes a remote file service, and the remote file service includes at least one of the following: list query mechanism, file query mechanism, report trigger mechanism, and write file query mechanism; The list query mechanism is that the centralized control station monitoring system sends a GetFileDirctory service instruction to the data communication network shutdown device according to the file service type. The data communication network shutdown device forwards it to the in-station IED, and the data communication network shutdown device receives the file list response data from the in-station IED and forwards it to the centralized control station monitoring system; The file query mechanism is that the centralized control station monitoring system sends a GetFile service request to the data communication network shutdown device by concatenating the file full path with the file type and the file name obtained through list query. The data communication network shutdown device forwards it to the in-station IED, and the data communication network shutdown device receives the file response stream data from the in-station IED and forwards it to the centralized control station monitoring system. After the centralized control station monitoring system parses the stream data, the file is stored in the file server; The report trigger mechanism is that when the in-station IED detects that a file has changed, it triggers the corresponding remote signal to be sent to the centralized control station monitoring system through the Report service. After the master station parses the remote signal, it initiates file access using the list query mechanism and the file query mechanism; The write file query mechanism is that the centralized control station monitoring system generates a file access command file according to the service. The access command is an E file format file, and the file naming follows the rule of service identifier_operation object_operation identifier_command sequence number.cmd. The data communication network shutdown device receives the SetFile write file request from the centralized control station monitoring system, writes the command file into the in-station IED. After the in-station IED receives and parses the command file, it aggregates the data in the station-side integrated application host database. After the data aggregation is completed, it uses the report trigger mechanism to notify the centralized control station monitoring system and responds to the file query instruction of the centralized control station monitoring system, forwarding the data to the centralized control station monitoring system.

5. The data penetration retrieval method for a self - controllable substation under the centralized control mode according to claim 1, characterized in that The interaction service includes a picture access service. The picture access service automatically generates wiring diagrams and sectional diagrams accessed by the centralized control station monitoring system according to the graphic templates of the centralized control system, displays the complete real-time data in the substation. The picture access service also collects the picture measurement and graphic element data of the integrated application host and transmits them remotely to the master station, refreshes the data to obtain the picture measurement and graphic element data. After browsing is completed, it calls the service request to close the picture data and supports the remote transmission of graphic files by the file service.

6. The data penetration access method for a self - controllable substation under the centralized control mode according to claim 1, characterized in that, The data access includes historical data access, equipment operation status access, online monitoring data access, fault report access, fault analysis report access, and real-time data access; The historical data review includes the centralized control station monitoring system generating a review command file, synchronizing the review command file to the centralized control station monitoring system file server, sending it to the data communication gateway through the centralized control station monitoring system master-substation communication module, the data communication gateway transmitting the file to the comprehensive application host, the comprehensive application host parsing the command file, obtaining historical data from the comprehensive application host database, generating a result file and then transmitting the file generation success telesignal, sending it to the centralized control station monitoring system through the data communication gateway, after the centralized control station monitoring system monitors the telesignal, calling the 860 file service to send instructions to the data communication gateway, the data communication gateway forwarding the command to the comprehensive application host, the comprehensive application host sending the file stream data to the data communication gateway, and transmitting it to the centralized control station monitoring system; The equipment operation status review and online monitoring data review include the centralized control station monitoring system sending RPC model service instructions to the data communication gateway through the master-substation communication module, the data communication gateway sends the instructions to the comprehensive application host, the comprehensive application host responds to the instructions and returns the RPC model information to the data communication gateway, the data communication gateway sends it to the centralized control station monitoring system, the centralized control station monitoring system selects the operation status and online monitoring model information in the RPC model, sends the RPC data service instructions to the data communication gateway, the data communication gateway sends the instructions to the comprehensive application host, and the comprehensive application host returns the RPC data information to the centralized control station monitoring system; The fault report review and fault analysis report review include the centralized control station monitoring system selecting a file service access path, selecting a start time and sending it to the data communication gateway through the master-substation communication module, the data communication gateway forwarding it to the comprehensive application host, the comprehensive application host checking the local file data, returning the file list data to the data communication gateway, the data communication gateway transmitting the data to the centralized control station monitoring system, the centralized control station monitoring system selecting the file to be called through the file list, sending the file service through the master-substation communication module to obtain the file, the data communication gateway forwarding the command to the comprehensive application host, the comprehensive application host returning the file stream data to the data communication gateway, the data communication gateway sending it to the centralized control station monitoring system; The real-time data access includes selecting a measuring point in the centralized control station monitoring system, defining the dynamic data set attribute as temporary or permanent and defining the dynamic data set name, sending a data set creation service to the master-substation communication module, the master-substation communication module sends it to the data communication gateway, the data communication gateway parses the command and generates a dynamic data set, and returns the creation result to the master station; If the creation is successful, the centralized control station monitoring system enables the corresponding dynamic data set, and the data communication gateway periodically sends the data in the dynamic data set to the centralized control station monitoring system.

7. The data penetration retrieval system of a self - controllable substation in the centralized control mode, characterized in that, Including model services based on the whole station description configuration SCD file of the new generation centralized control station monitoring system, master-substation interaction services based on DL / T860 communication specifications, and data retrieval services based on the new generation of autonomous controllable substations; The model service of the whole station description configuration SCD file based on the new generation centralized control station monitoring system includes: 1) The substation performs model configuration to generate the SCD full-station configuration file; 2) After extracting the SCD full-station configuration file, the centralized control station monitoring system parses it and stores the parsed result in the master station database for use by the master-slave station communication module during the interaction service; 3) According to the data access requirement, the corresponding information in the master station database is retrieved and assembled into a service request, which is interacted with the data communication gateway to achieve the consistency of the master-slave station models during data access; The master-slave station interaction service based on the DL / T860 communication specification includes: the centralized control station monitoring system provides the interaction service through the data communication gateway deployed on the substation side, and the centralized control station monitoring system sends instructions to the data communication gateway through the master-slave station communication module according to the type of the interaction service; The data access service based on the new generation of independent and controllable substations includes: the data communication gateway forwards the instruction to the integrated application host, the integrated application host returns the data information related to the instruction to the centralized control station monitoring system, and the centralized control station monitoring system realizes data access; In the master-slave station interaction service based on the DL / T860 communication specification, the interaction service includes a remote file service, and the remote file service includes at least one of the following: a list query mechanism, a file query mechanism, a report trigger mechanism, and a write file query mechanism; The list query mechanism is that the centralized control station monitoring system sends a GetFileDirctory service instruction to the data communication gateway according to the file service type, the data communication gateway forwards it to the in-station IED, and the data communication gateway receives the file list response data from the in-station IED and forwards it to the centralized control station monitoring system; The file query mechanism is that the centralized control station monitoring system sends a GetFile service request to the data communication gateway by concatenating the file full path with the file name obtained through the file type and list query, the data communication gateway forwards it to the in-station IED, the data communication gateway receives the file response stream data from the in-station IED and forwards it to the centralized control station monitoring system, and the centralized control station monitoring system parses the stream data and stores the file in the file server; The report trigger mechanism is that when the in-station IED detects that the file has changed, it triggers the corresponding remote signal to be sent to the centralized control station monitoring system through the Report service, and the master station initiates file access using the list query mechanism and the file query mechanism after parsing the remote signal; The write file query mechanism is that the centralized control station monitoring system generates a access command file according to the service, the access command is an E file format file, and the file naming follows the rule of service identifier_operation object_operation identifier_command serial number.cmd. The data communication gateway receives the SetFile write file request from the centralized control station monitoring system, writes the command file into the in-station IED. After receiving and parsing the command file, the in-station IED aggregates the data in the station-side integrated application host database. After the data aggregation is completed, it uses the report trigger mechanism to notify the centralized control station monitoring system and responds to the file query instruction of the centralized control station monitoring system, and forwards the data to the centralized control station monitoring system; The interaction service further includes a dynamic data set service, and the dynamic data set service includes the following steps: 1) The dynamic data set client software of the centralized control station monitoring system names the newly created data set and determines the operation type, where the operation type includes at least one of the following: creating a dynamic data set, deleting a dynamic data set, reading a dynamic data set, and heartbeat operation; 2) Select the dynamic data set type according to the operation type, where the dynamic data set type includes a temporary data set and a permanent data set; 3) Select the measuring points included in the dynamic data set, complete the data assembly of the dynamic data set, and support the encapsulation of telemetry and telecontrol measuring points of different IEDs in the same dynamic data set; 4) When the operation type is creating a dynamic data set, use the CreateDataset service primitive in DL / T860, and when the operation type is deleting a dynamic data set, use the DeleteDataSet service primitive to send an operation request to the substation; 5) After successfully creating the dynamic data set, store the dynamic data set model information and measuring point information in the centralized control station monitoring system database, and automatically perform the association operation between the measuring points and the data set; 6) The centralized control station monitoring system can view the dynamic data in two ways: manually triggering the reading of the data set value and publishing and subscribing to enable the reporting control block. After the data browsing is completed, the centralized control station monitoring system actively deletes the corresponding temporary dynamic data set; The interactive service also includes an RPC data viewing service, and the RPC data viewing service includes the following steps: a) The centralized control station monitoring system sends a method for obtaining the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device sends a call to the same method to the integrated application host; b) The integrated application host responds with the data of the viewing model to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system; c) The client of the centralized control station monitoring system selects the model to be viewed, splices the viewing parameter reqData, where reqData adopts a two-level segmented format of "IED.viewing type" separated by ".", and after the viewing parameter is determined, sends a method for obtaining the viewing data to the data communication network shutdown device, and after parsing, the data communication network shutdown device sends a call to the same method to the integrated application host; d) The integrated application host responds with the viewing data to the data communication network shutdown device, and after parsing, the data communication network shutdown device remotely transmits it to the centralized control station monitoring system. The centralized control station monitoring system displays the viewing data, writes the viewing data into an E-format file, and saves it to the file server through the file service; The interactive service also includes a screen viewing service. The screen viewing service automatically generates wiring diagrams and sectional diagrams viewed by the centralized control station monitoring system according to the graphic templates of the centralized control system, displays the complete real-time data in the substation. The screen viewing service also collects the screen measurement and graphic element data of the integrated application host, and remotely transmits them to the master station to refresh the data to obtain the screen measurement and graphic element data. After the browsing is completed, it calls the service request to close the screen data and supports the remote transmission of graphic files through the file service.

8. The data penetration viewing system of the autonomous and controllable substation in the centralized control mode according to claim 7, characterized in that The SCD full-station configuration file includes remote service logic node status information, full-station secondary device model information, access path information, report control block information during master-slave station link establishment, and data references of report trigger signals. The full-station secondary device model information includes: dataset information, client access path and IED access path information, report control block information, secondary device online monitoring information, and secondary device online detection information.

9. The data penetration access system for a self - controllable substation in the centralized control mode according to claim 7, characterized in that, The data retrieval includes historical data retrieval, device operation status retrieval, online monitoring data retrieval, fault report retrieval, fault analysis report retrieval, and real-time data retrieval. The historical data retrieval includes the generation of a retrieval command file by the substation control system, synchronization of the retrieval command file to the file server of the substation control system, sending it to the data communication network shutdown through the master-slave station communication module of the substation control system, the data communication network shutdown transmitting the file to the integrated application host, the integrated application host parsing the command file, obtaining historical data from the database of the integrated application host, generating a result file and sending a successful file generation tele signal, uploading it to the substation control system through the data communication network shutdown. After the substation control system monitors the tele signal, it calls the 860 file service to send an instruction to the data communication network shutdown, the data communication network shutdown forwards the command to the integrated application host, and the integrated application host sends the file stream data to the data communication network shutdown and transmits it to the substation control system. The device operation status retrieval and online monitoring data retrieval include the substation control system sending an RPC model service instruction to the data communication network shutdown through the master-slave station communication module, the data communication network shutdown transmitting the instruction to the integrated application host, the integrated application host returning RPC model information to the data communication network shutdown after responding to the instruction, the data communication network shutdown transmitting it to the substation control system, the substation control system selecting the operation status and online monitoring model information in the RPC model, sending an RPC data service instruction to the data communication network shutdown, the data communication network shutdown transmitting the instruction to the integrated application host, and the integrated application host returning RPC data information to the substation control system. The fault report retrieval and fault analysis report retrieval include the substation control system selecting the file service access path, selecting the start time and sending it to the data communication network shutdown through the master-slave station communication module, the data communication network shutdown forwarding it to the integrated application host, the integrated application host checking the local file data and returning the file list data to the data communication network shutdown, the data communication network shutdown transmitting the data to the substation control system, the substation control system selecting the file to be summoned through the file list, sending a file service to obtain the file through the master-slave station communication module, the data communication network shutdown forwarding the command to the integrated application host, and the integrated application host returning the file stream data to the data communication network shutdown and the data communication network shutdown uploading it to the substation control system. The real-time data retrieval includes the following steps: the centralized control station monitoring system selects measurement points, defines the attributes of the dynamic data set as temporary or permanent and defines the name of the dynamic data set, sends the service for creating the data set to the master-slave station communication module, the master-slave station communication module issues it to the data communication network shutdown device, the data communication network shutdown device generates a dynamic data set after parsing the command, and returns the creation result to the master station; If the creation is successful, the centralized control station monitoring system enables the corresponding dynamic data set, and the data communication network shutdown device uploads the data in the dynamic data set to the centralized control station monitoring system periodically.

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