Substation background data validity test method

Abstract

The invention provides a transformer substation background data validity test method. The method comprises the following steps: firstly, acquiring model data, establishing a measuring point index and replacing an enabling index through a first terminal, namely a point detector, at the front end, pulling a database file and a picture file through a second terminal, namely a monitoring background, analyzing the database file and the picture file, and verifying the consistency of the model, so as to confirm the data consistency condition and the enabling attribute condition; substation background data validity checking is completed by replacing data checking of files and data messages, so that the automation level of the checking process is improved, and then the efficiency and validity of substation database data checking are improved; and the corresponding file retaining report is generated in the inspection process, and the inspection process of monitoring the data validity in real time can be realized, so that the timeliness of the substation background data validity inspection is improved.

Description

Technical Field

[0001] This application relates to the technical field of substation data processing, and particularly to a method for validating the effectiveness of substation background data. Background Art

[0002] During the construction or renovation of a substation, the verification of background information points is involved. The relevant information such as each component and connection relationship in the substation is based on the information in the background data. Therefore, it is necessary to ensure the effectiveness of the information in the background data, and correspondingly, a method for validating the effectiveness of substation background data that matches it is required.

[0003] In some feasible embodiments, the relevant information in the background data can be verified by manually triggering the corresponding device through on-site manual operation, which brings problems such as low verification efficiency and heavy workload. At the same time, the accuracy depends on the knowledge and operation reserve of technical personnel. Therefore, a method for validating the effectiveness of substation background database data is needed to improve the automation level of the verification process, thereby improving the efficiency and effectiveness of data verification. Summary of the Invention

[0004] The purpose of this application aims to solve at least one of the above technical defects, especially the technical defect that the automation level of the process for validating the effectiveness of substation background data in the prior art is not high, and the efficiency and effectiveness of data verification are insufficient.

[0005] In a first aspect, this application provides a method for validating the effectiveness of substation background database data, and the method includes:

[0006] Obtain model data through a first terminal, and obtain database data and screen data through a second terminal;

[0007] According to the model data, perform a first consistency check on the database data and / or the screen data to determine the model data consistency situation and data attributes of each target model;

[0008] Wherein, the target models include protection devices and measurement and control devices;

[0009] According to the database data and / or the screen data, perform a data effectiveness verification process on each of the target models to obtain a data effectiveness verification result.

[0010] As an optional embodiment, the first terminal includes a point-to-point tester, the second terminal includes a monitoring background, the data attribute of the target model includes an enabling attribute, and the data effectiveness verification process includes:

[0011] Perform an enabling operation on each of the target models through the point-to-point tester;

[0012] Through the point-to-point tester, according to the measuring point indexes corresponding to the respective target models, send target data packets to the monitoring background to set the values of the measuring points.

[0013] Obtain the replacement file of the monitoring background, and according to the replacement file, perform a second consistency check on the target data packet.

[0014] As an optional implementation manner, the step of sending, through the point-to-point tester, target data packets to the monitoring background to set the values of the measuring points according to the measuring point indexes corresponding to the respective target models includes:

[0015] Through the point-to-point tester, based on the preset data quality, send telecontrol data and telemetry data according to the measuring point indexes corresponding to the respective target models.

[0016] Wherein, the telecontrol data includes setting data switched from the first state to the second state, and the telemetry data includes increment data determined according to a preset starting value and an increment value.

[0017] Record the telecontrol data and telemetry data corresponding to each measuring point in the measuring point indexes at the target moment.

[0018] As an optional implementation manner, the step of obtaining the replacement file of the monitoring background and performing a second consistency check on the target data packet according to the replacement file includes:

[0019] Establish a simulated client at the point-to-point tester, establish a simulated server at the monitoring background, and establish communication at the bay level.

[0020] Obtain the replacement file of the monitoring background, and parse the replacement file to determine the replacement file data.

[0021] Wherein, the replacement file data includes one or more of measuring points, replacement values, replacement timestamps.

[0022] According to the target data packet, compare the consistency between the replacement file data and the target data packet to complete the second consistency check.

[0023] As an optional implementation manner, the step of obtaining model data through the first terminal includes:

[0024] Through the first terminal, obtain a model file, and according to the model file, parse the model data of each layer.

[0025] The method further includes:

[0026] According to the model data, form a measuring point index related to the target model.

[0027] As an alternative implementation, parsing the model data of each level according to the model file includes:

[0028] Obtaining access points according to the model file;

[0029] Obtaining the logical devices under each access point according to each of the access points;

[0030] Obtaining the common logical nodes and non-common logical nodes under each of the logical devices;

[0031] Determining a data set and data item information under the data set according to each of the common logical nodes, where the data item information includes a reference object name and a reference function constraint;

[0032] Determining a data object list and a data attribute list under the data object according to each of the non-common logical nodes.

[0033] As an alternative implementation, performing a first consistency check on the database data and / or the screen data according to the model data includes:

[0034] Parsing the database data and / or the screen data to obtain a data list;

[0035] Wherein, the data list includes a measuring point serial number, the measuring point index, and measuring point description information;

[0036] Performing a first matching process on the data list and the model data through the measuring point index. If the matching result of the first matching process is successful, then performing a second matching process on the data list and the model data through the measuring point description. If the matching result of the second matching process is successful, then passing the first consistency check.

[0037] In a second aspect, the present application provides a device for validating the data of a substation background database, and the device includes:

[0038] An obtaining module, configured to obtain model data through a first terminal, and obtain database data and screen data through a second terminal;

[0039] A processing module, configured to perform a first consistency check on the database data and / or the screen data according to the model data, and determine the model data consistency situation and data attributes of each target model;

[0040] Wherein, the target models include a protection device and a measurement and control device;

[0041] The processing module is further configured to execute a data validity check process on each of the target models according to the database data and / or the screen data, and obtain a validity check result.

[0042] In a third aspect, the present application provides a computer device, including one or more processors and a memory. Computer-readable instructions are stored in the memory, and when the computer-readable instructions are executed by the one or more processors, the steps of the method described in the first aspect are executed.

[0043] In a fourth aspect, the present application provides a storage medium in which computer-readable instructions are stored. When the computer-readable instructions are executed by one or more processors, the one or more processors are caused to execute the steps of the method described in the first aspect.

[0044] As can be seen from the above technical solutions, the embodiments of the present application have the following advantages:

[0045] Based on any of the above embodiments, the method provided by the present application completes the verification of the validity of the substation background database data in an automated manner. First, through the first terminal at the front end, that is, the point detector, model data is obtained, a measurement point index and a substitution enable index are formed, and the database file and the screen file are pulled and parsed through the second terminal, that is, the monitoring background. After the model consistency check, the data consistency situation and the enable attribute situation can be confirmed, and then the subsequent data validity check and debugging process can be executed. The data validity check of the substation background database is completed through the data check of the substitution file and the data message. Thus, the automation level of the check process is improved, and further the efficiency and effectiveness of the substation database data check are improved. A corresponding record report is generated during the check process, and the real-time monitoring of the data validity check process can be realized, thereby also improving the timeliness of the substation background database data validity check. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0047] Figure 1 It is a schematic flowchart of a method for verifying the validity of substation background data provided by an embodiment of the present application;

[0048] Figure 2 It is a schematic structural diagram of a system for verifying the validity of substation background data provided by an embodiment of the present application;

[0049] Figure 3 A flowchart of the substation background data validity verification method provided by another embodiment of this application;

[0050] Figure 4 An internal structure diagram of the computer device provided by an embodiment of this application. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0052] First, important noun concepts are explained:

[0053] Intelligent Electronic Device (IED for short), the IED device is a basic component unit of an intelligent substation, and is an electronic device integrating multiple functions such as measurement, control, protection, and monitoring. It can automatically collect various electrical quantities (such as voltage, current, etc.) and non-electrical quantities (such as equipment temperature, pressure, etc.) information during the operation of the power system, process them according to pre-set logics and algorithms, and can also receive external control instructions and execute corresponding operations.

[0054] Types and functions:

[0055] Protection IED: Its main function is to protect electrical equipment in the power system. For example, the line protection IED can monitor the current and voltage on the line in real time. When it detects that the fault current exceeds the set value (such as a short-circuit fault), it can quickly send a tripping signal to cut off the faulty line and protect the equipment from damage. It realizes fault judgment and protection actions through the rapid and accurate measurement of electrical quantities and complex protection algorithms.

[0056] Measurement and control IED: Focuses on measuring and controlling the operating parameters of power equipment. It can collect electrical quantity data such as voltage, current, and power in real time and transmit these data to the monitoring background. At the same time, the measurement and control IED can also receive control instructions from the monitoring background, such as remote control operations of equipment such as circuit breakers and disconnectors. For example, through the measurement and control IED, the active power and reactive power of each line in the substation can be adjusted and controlled.

[0057] Intelligent Electronic Device (IED): It serves as a bridge connecting primary equipment (such as high-voltage electrical equipment like circuit breakers and disconnectors) and secondary systems (such as protection and measurement and control systems). It can convert the status information of primary equipment (such as switch positions, equipment status, etc.) into digital signals and transmit them to the secondary system. At the same time, it can also convert the control commands of the secondary system into signals that can drive the primary equipment to act. For example, the IED can convert the opening and closing position signals of a circuit breaker into digital telemetry signals and send them to protection and measurement and control IEDs, and at the same time convert the trip command issued by the protection IED into a signal to drive the circuit breaker to trip.

[0058] Functions in a substation:

[0059] Data acquisition and monitoring: IED devices are widely distributed in various links of the substation and can collect the operation data of power equipment in real time, providing a rich data source for the substation monitoring system. Through these data, operation and maintenance personnel can understand the operation status of the substation in real time on the monitoring background, including electrical parameters and operation conditions of equipment and other information.

[0060] Automation control and protection: IED devices can automatically execute protection and control functions according to preset logics and algorithms to achieve the automated operation of the substation. When a fault occurs in the power system, the protection IED can act quickly to isolate the faulty part and ensure the safe and stable operation of the power system; under normal operating conditions, the measurement and control IED can remotely control and adjust equipment according to the requirements of the power grid dispatching to optimize the power grid operation mode.

[0061] Manufacturing Message Specification (MMS) data. MMS data is a communication protocol data format widely used in the field of industrial automation, especially in substation automation systems. It defines the rules and formats for exchanging real-time data, monitoring information, control instructions, etc. between different devices to ensure accurate and efficient communication between devices.

[0062] Data content and format:

[0063] Real-time data transmission: MMS data can contain various types of real-time operation data, such as telemetry data (equipment status information) and telemetry data (electrical quantity measurement values) collected by IED devices. When these data are transmitted, they are packed according to the format specified by the MMS protocol. For example, telemetry data may represent the opening and closing status of equipment in the form of binary bits (0 or 1), while telemetry data represents the value of electrical quantities in a specific data type (such as floating-point numbers) and includes information such as the unit and precision of the data.

[0064] Control instruction transmission: In addition to data transmission, MMS data is also used to transmit control instructions. For example, remote control commands sent from the substation monitoring background to IED devices (such as opening and closing operations of circuit breakers), remote adjustment commands (such as adjustment of device operating parameters), etc. are all transmitted in the MMS data format. These control instruction data contain detailed information such as the type of instruction, target device, operation parameters, etc., ensuring that the device can correctly understand and execute the corresponding operations.

[0065] Applications in substations:

[0066] Communication between the station control layer and the bay layer: In the architecture of intelligent substations, MMS data is mainly used for communication between the station control layer and the bay layer. The monitoring system of the station control layer exchanges data with IED devices in the bay layer through the MMS protocol to achieve remote monitoring and control of substation equipment. For example, the monitoring background sends a request to read the device operating parameters to the bay control IED in the bay layer through MMS data. After receiving the request, the bay control IED returns the collected telemetry data to the monitoring background in the MMS data format.

[0067] Standardization of data interaction: The MMS protocol provides a standardized platform for data interaction between devices of different manufacturers in the substation. Since IED devices of different manufacturers may have different data formats and communication methods, by adopting the MMS data format, it can be ensured that they can communicate and cooperate with each other in the substation automation system. This helps to improve the openness and interoperability of the substation system, facilitating system integration and expansion.

[0068] Substation Configuration Description File (SCD for short), the SCD file is the core configuration file of intelligent substations and is the "blueprint" of the entire substation automation system. This file describes in detail all-round information such as the relationships between various intelligent electronic devices (IEDs) in the substation, communication configurations, data flows, and function integrations in a standardized format.

[0069] Content composition:

[0070] IED device information: It contains the basic information of all IED devices in the substation, such as device models, manufacturers, function descriptions, etc. It will list in detail the access points of each IED device, which are the interfaces for data interaction with the outside world. Through these access points, more detailed information structures such as the logical devices (LDevice) inside each IED device can be further understood.

[0071] Communication configuration: It stipulates the communication network settings between IED devices and between IED devices and the substation station control layer. This includes information such as the communication protocols adopted (such as the MMS protocol, etc.), network topologies (such as star, ring, etc. network connection methods), IP address allocation, etc., to ensure that each device can accurately exchange data in the network.

[0072] Data mapping and association: It describes how data is exchanged between different IED devices in the substation. For example, how the fault signal (tele-signaling data) detected by a certain protection IED device is transmitted to the monitoring background, and how the control commands (such as remote control operations) of the monitoring background are sent to the corresponding IED device actuator. This data mapping is detailed through data sets (DataSet) and data item information (FCDA), clarifying the source, destination, and conversion relationship of the data.

[0073] Function:

[0074] System integration and configuration: During the construction and transformation of substations, engineering and technical personnel can carry out system integration and configuration work according to the SCD file. It helps technicians combine various IED devices from different manufacturers with different functions to ensure that they can work together according to the design requirements. For example, under the guidance of the SCD file, line protection IEDs, bus protection IEDs, measurement and control IEDs, etc. can be correctly connected to the substation communication network, and the data interaction relationship between them can be set up.

[0075] Operation and maintenance support: For the daily operation and maintenance work of substations, the SCD file is an important reference. When a device fails or needs function expansion or upgrade, operation and maintenance personnel can refer to the SCD file to understand the association relationship between devices, quickly locate the fault point, or evaluate the possible impact of system changes. For example, if the monitoring background cannot receive the telemetry data of a certain IED device, the SCD file can be used to check each link in the data transmission path, such as whether the communication configuration and data mapping are correct.

[0076] In China's power grid, the task workload in newly built or transformed substations is relatively heavy, especially the verification of background information points. All information in the substation is based on the information in the background database, so the correctness of the background information is particularly crucial. Therefore, the need to quickly verify the correct configuration of the data in the background database is urgent. However, in the secondary system of intelligent substations, the configuration of the substation background database is manually configured by the background manufacturer's personnel, and the correctness of the configuration needs to be verified, resulting in low testing efficiency for substation relay protection.

[0077] For example, during the transformation of the substation background, it is necessary to re-check and verify all signal points in the background. In conventional technologies, signals are transmitted to the monitoring background by manually operating primary equipment such as switches and disconnectors. Since the number of signal points in the monitoring background is large, this method not only has low efficiency but also has problems with effectiveness, posing certain risks to the operation of the substation.

[0078] In a specific application scenario, the method provided by this application obtains the IED data model of the whole station by parsing the SCD file, and simulates the protection devices and measurement and control devices of the whole station. Parse the database file and picture file of the background, perform model consistency verification and communication consistency verification with the SCD data model, and automatically generate a model verification result report. Simulate the communication between the IED devices of the whole station and the background. The simulated IED devices automatically send telemetry and telecontrol data with substitution flags according to the measurement point sequence in the database file or picture file. The background will generate a substitution file after receiving the substitution data. Summon the background substitution file through the file service of the DLT860 protocol. Parse the summoned substitution file and compare the substitution data recorded in the substitution file with the sent data. Finally, generate the verification results of the background database and the picture file, and through the comparison, the correctness of the data configuration of the substation background can be found in time, thus solving the problem of automatic point-to-point debugging of the substation background.

[0079] In summary, combined with the specific implementation mode corresponding to this application, the technical concept of this application is that the method provided by this application completes the verification of the validity of the substation background database data in an automated form. First, through the first terminal at the front end, that is, the point-to-point detector, obtain the model data, establish a measurement point index and a substitution enable index, and pull and parse the database file and picture file through the second terminal, that is, the monitoring background. After performing model consistency verification, the data consistency situation and the enable attribute situation can be confirmed, so as to execute the subsequent data validity verification and debugging process. Complete the verification of the validity of the substation background database data through the data verification of the substitution file and the data message. Thus, the automation level of the verification process is improved, and then the efficiency and effectiveness of the substation database data verification are improved. During the verification process, a corresponding record report is generated, and the verification process of the real-time monitoring data validity can be realized, thus also improving the timeliness of the verification of the substation background database data validity.

[0080] Please refer to Figure 1 , Figure 1 which is a schematic flow chart of the method for verifying the validity of substation background data provided by an embodiment of this application. As Figure 1 shown, the method includes:

[0081] S101. Obtain model data through the first terminal, and obtain database data and picture data through the second terminal;

[0082] As an alternative embodiment, obtaining the model data by the first terminal includes:

[0083] Parsing the model data of each level according to the model file;

[0084] Forming a measuring point index related to the target model according to the model data.

[0085] In this embodiment, the model file is imported and parsed at the point tester end, the model data of each level is obtained through parsing, and a measuring point index in a preset form is established based on this, so as to simplify the data interaction and measuring point positioning processes in the subsequent model matching and data validity detection processes, and improve the efficiency and effectiveness of the substation background data inspection.

[0086] As an alternative embodiment, parsing the model data of each level according to the model file includes:

[0087] Obtaining access points according to the model file;

[0088] Obtaining the logical devices under each access point according to each of the access points;

[0089] Obtaining the common logical nodes and non-common logical nodes under each of the logical devices;

[0090] Determining the data set and the data item information under the data set according to each of the common logical nodes, where the data item information includes the reference object name and the reference function constraint;

[0091] Determining the data object list and the data attribute list under the data object according to each of the non-common logical nodes.

[0092] In this embodiment, after the model file is imported at the point tester end, the model data of each level is obtained through parsing according to the attributes of the model file. First, all access points under the model file are obtained, then the logical devices under each access point are obtained, and further the common logical nodes and non-common logical nodes corresponding to the logical devices are respectively obtained to determine the detailed attributes under the logical nodes. Thus, according to the parameters of each level, corresponding measuring point indexes are generated according to the logic or instructions of the preset processing language, so as to simplify the data interaction and measuring point positioning processes in the subsequent model matching and data validity detection processes, and improve the efficiency and effectiveness of the substation background data inspection.

[0093] Please refer to Figure 2 , Figure 2 which is a schematic structural diagram of the substation background data validity inspection system provided by an embodiment of the present application, as shown in Figure 2As shown, in the application scenario provided by this application, a feasible implementation of the first terminal is a point tester, and a feasible implementation of the second terminal is a monitoring background. Communication is established through a switch. The point tester first obtains model data, and obtains database data and screen data through the monitoring background. First, model consistency verification is performed, that is, the first consistency verification. Then, the point tester transmits MMS data to the monitoring background for the enabled measurement points, and the monitoring background feeds back the corresponding replacement files, thereby realizing the communication data consistency verification of the enabled measurement points, that is, the second consistency verification. For specific details, refer to the detailed description in other implementation manners.

[0094] S102. Perform a first consistency verification on the database data and / or the screen data according to the model data, and determine the model data consistency situation and data attributes of each target model.

[0095] Among them, the target models include protection devices and measurement and control devices.

[0096] The first consistency verification is performed on the full amount of data of the substation. The models are compared based on the model data at the front end and the database data and / or screen data at the back end, and the target models with enable attributes are recorded.

[0097] As an optional implementation manner, the performing a first consistency verification on the database data and / or the screen data according to the model data includes:

[0098] Analyze the database data and / or the screen data to obtain a data list.

[0099] Among them, the data list includes the measurement point serial number, the measurement point index, and measurement point description information.

[0100] Through the measurement point index, perform a first matching process between the data list and the model data. If the matching result of the first matching process is successful, then through the measurement point description, perform a second matching process between the data list and the model data. If the matching result of the second matching process is successful, then the first consistency verification is passed.

[0101] In this embodiment, during the model consistency verification process, first, database data and / or the screen data are exported at the monitoring background end to obtain a data list, so as to compare with the model data obtained at the point-to-point tester end. Through the information in the data list, it is compared whether the paths, signal descriptions, and model-related information of the telecontrol and telemetry signal data conform to the corresponding information in the model data. If all the information conforms, it indicates that the consistency verification of the model passes. Further, the enabling attributes of each model can be determined while the model is verified, and then the measuring point number, measuring point index, and the replaced enabling index corresponding to the measuring point index are recorded and saved, so as to perform further data verification for each target model with enabling attributes, improving the automation level of the verification process, and further improving the efficiency and effectiveness of the substation database data verification. A corresponding record report is generated during the verification process, and the verification process of the real-time monitoring data validity can be realized, thus also improving the timeliness of the substation background database data validity verification.

[0102] S103. According to the database data and / or the screen data, perform a data validity verification process on each of the target models to obtain a validity verification result.

[0103] As described above, the data validity verification process is used to perform further tests on the measuring points with enabling attributes. By comparing the replacement file at the monitoring background with the data message sent by the front-end point-to-point tester, the corresponding consistency detection process is realized, so as to obtain the final validity verification result.

[0104] In this embodiment, the validity verification of the substation background database data is completed in an automated manner. First, the model data is obtained through the first terminal at the front end, that is, the point-to-point detector, and the measuring point index and the replaced enabling index are formed. Then, the database file and the screen file are pulled through the second terminal, that is, the monitoring background, and parsed. After the model consistency verification, the data consistency situation and the enabling attribute situation can be confirmed, so as to perform the subsequent data validity verification and debugging process. The validity verification of the substation background database data is completed through the data verification of the replacement file and the data message. Thus, the automation level of the verification process is improved, and further the efficiency and effectiveness of the substation database data verification are improved. A corresponding record report is generated during the verification process, and the verification process of the real-time monitoring data validity can be realized, thus also improving the timeliness of the substation background database data validity verification.

[0105] As an optional implementation manner, the first terminal includes a point-to-point tester, the second terminal includes a monitoring background, the data attribute of the target model includes an enabling attribute, and the data validity verification process includes:

[0106] Perform an enabling operation on each of the target models through the point-to-point tester;

[0107] Through the point-to-point tester, according to the measuring point indexes corresponding to the respective target models, send target data packets to the monitoring background to set the values of the measuring points.

[0108] Obtain the replacement file of the monitoring background, and perform a second consistency check on the target data packet according to the replacement file.

[0109] In this embodiment, during the data validity check process, first perform corresponding enabling operations on the target models with enabling attributes to trigger the data validity check process. After all the target models are enabled, trigger the monitoring background to start receiving data from the point-to-point tester. The point-to-point tester sends telecontrol data and telemetry data according to the determined measuring point indexes to set specific logical values and numerical values. Furthermore, according to the replacement file of the monitoring background and the target data packet, perform a second consistency check in terms of communication to confirm the validity of the measuring point configuration, complete the data validity check of the database or the screen. Thus, the automation level of the check process is improved, and furthermore, the efficiency and effectiveness of the substation database data check are improved. During the check process, corresponding files can also be generated for data confirmation and data traceability, and the real-time monitoring of the data validity check process can be realized, thereby also improving the timeliness of the substation background database data validity check.

[0110] As an optional embodiment, the step of through the point-to-point tester, according to the measuring point indexes corresponding to the respective target models, sending target data packets to the monitoring background to set the values of the measuring points includes:

[0111] Through the point-to-point tester, based on the preset data quality, send telecontrol data and telemetry data according to the measuring point indexes corresponding to the respective target models.

[0112] Among them, the telecontrol data includes the setting data switched from the first state to the second state, and the telemetry data includes the increment data determined according to the preset starting value and increment value.

[0113] Record the telecontrol data and telemetry data corresponding to each measuring point in the measuring point index at the target moment.

[0114] In this embodiment, after the point-to-point tester enables all the target models, according to the measuring point indexes corresponding to the respective target models, send the packet data of the replacement quality, so as to set the specific attributes of the target models, and record the packet data values and time stamps of each test point at the target moment, thereby completing the data setting process, improving the automation level of the check process, and improving the efficiency and effectiveness of the substation background data check.

[0115] As an alternative implementation, obtaining the replacement file of the monitoring background and performing a second consistency check on the target data packet according to the replacement file includes:

[0116] Establish a simulated client at the point-to-point tester, establish a simulated server at the monitoring background, and establish communication at the interval layer;

[0117] Obtain the replacement file of the monitoring background and parse the replacement file to determine the replacement file data;

[0118] Wherein, the replacement file data includes one or more of measuring points, replacement values, and replacement time stamps;

[0119] According to the target data packet, compare the consistency between the replacement file data and the target data packet to complete the second consistency check.

[0120] In this implementation, after the point-to-point tester sends the target data packet, the process of generating and parsing the replacement file is carried out, and further the second consistency check in terms of communication is carried out to confirm the effectiveness of the measuring point configuration. Specifically, by establishing simulated terminals under a preset protocol at both ends of the point-to-point tester and the monitoring background respectively, and realizing the communication at the interval layer through a preset address. After establishing the communication, based on the preset file service function, obtain the replacement file and parse it to obtain one or more replacement file data such as measuring points, replacement values, and replacement time stamps. According to the sent target data packet, match based on the replacement file data. If the match is successful, it indicates that the measuring point is correctly configured at the monitoring background end. Thus, automatic data validity verification is realized, and the efficiency and effectiveness of substation background data verification are improved.

[0121] Please refer to Figure 3 , Figure 3 which is a schematic flowchart of the method for verifying the validity of substation background data provided by an embodiment of the present application. When various embodiments are combined and applied, the method may include a model consistency check link and a communication data check link for the target model with an enabling attribute.

[0122] Specifically, based on Figure 3 the shown flowchart, in a specific application scenario, the method can be divided into the following steps:

[0123] Step 1: The point-to-point tester imports and parses the SCD file to obtain the IED model data of the whole station, simulates the protection devices and measurement and control devices of the whole station according to the model data, and connects the point-to-point tester to the MMS network switch at the station control layer and connects to the background.

[0124] Steps for parsing the SCD file to obtain model data:

[0125] Step 1.1 Obtain all access points (Accesspoint) under the IED model.

[0126] Step 1.2 Obtain the logical devices (LDevice) under each access point.

[0127] Step 1.3 Obtain the common logical nodes (LN0) under the logical device, the data sets (DataSet) under the common logical nodes, and the data item information (FCDA) under the data sets. The data item information includes information such as the referenced object name (DONAME) and the referenced function constraint (FC).

[0128] Step 1.4 Obtain the list of non-common logical nodes (LN) under the logical device, the list of data objects (DOI) under the non-common logical nodes, and the list of data attributes (DAI) under the data objects.

[0129] Step 1.5 Based on the above data, a station-wide measurement point index (Reference) can be formed. The formation method is: Reference = LDName (logical device) / LNName (logical node).DataObjectName (data object).DataAttributeName (data attribute). And when there is a data attribute with "subEna" in the data attributes, it means that this measurement point has a replacement function. The formation method of the replacement enable index is: Reference = LDName (logical device) / LNName (logical node)$FC (function constraint)$DataObjectName (data object)$subEna (replacement enable). Record the measurement point index and its corresponding replacement enable index.

[0130] Step 2: Parse the database file and the screen file exported from the background of the whole station, and compare the models with the whole-station data model obtained in Step 1. Compare the IEC61850 paths and corresponding signal descriptions of all the telecontrol and telemetry signal data in the database or screen file, and generate the comparison result of the consistency of the database models of the monitoring background database and the screen file database. If there is a data attribute named "subEna" in the data attributes corresponding to the reference address, that is, the enable attribute, then this reference address supports the issuance of a replacement command, and record and save the address with the replacement enable.

[0131] Steps for parsing the database file, the screen file and their model comparison:

[0132] Step 2.1: Parse the database / screen file, and record and save the list data of <Object::measurement point> in the file. The recorded list data mainly includes: serial number, reference (measurement point index), desc (measurement point description).

[0133] Step 2.2: Based on the data list obtained in Step 2.1, sequentially match it with the full-station measurement point data list in Step 1.5 through the measurement point index. If no match is found, it means that this measurement point model in the database / screen is inconsistent with the SCD. If a match is found, then compare the measurement point descriptions. If the measurement point descriptions are inconsistent, it means that this measurement point model in the database / screen is inconsistent with the SCD; otherwise, this measurement point model is consistent with the SCD.

[0134] Step 2.3: Generate the comparison result of the model consistency between the monitoring background database / screen through Step 2.2. While performing model verification, record and save the measurement point number, measurement point index, and the replacement enable index corresponding to its measurement point index.

[0135] Step 3: According to the corresponding database list data obtained in Step 2, the point tester sequentially enables the corresponding measurement point data in the simulated protection device and measurement and control device libraries of the local machine.

[0136] The steps for enabling the point tester are as follows:

[0137] Step 3.1: Sequentially take out the enabled measurement point addresses in the database list, and set the function constraint corresponding to the enabled address in the model library to replace IEC61850_FC_SV.

[0138] Step 3.2: Set the value corresponding to the enabled address in the model library to 1. (1 represents replacement enable, 0 represents cancellation of replacement enable. After successful replacement enable, the data sent by this model measurement point is MMS data with a replacement flag.)

[0139] Step 4: After the point tester enables all the test data in Step 3, notify the background personnel through the in-station intercom that they can start recording the replacement data. After the background personnel feedback that they are ready. The point tester automatically sends MMS data messages to set the values of the measurement points on the background according to the measurement point indexes in the test list. The setting method is to sequentially send ON->OFF settings for remote signals and sequentially increment the settings for remote measurements (the starting value and increment value can be set, with the default starting value being 1 and the increment value being 0.1). And at this time, the data quality of the sent MMS message is the replacement quality 0x10, and record the final value and time stamp sent for each test point.

[0140] Step 5: After the point tester automatically finishes sending, perform a replacement file call and parse the replacement file to perform consistency verification on the sent sequence data and the data in the replacement file.

[0141] The steps for replacement file call and data consistency verification include:

[0142] Step 5.1 After the point tester finishes automatic sending, notify the backstage personnel to stop receiving replacement data through the in-station intercom. At this time, the backstage will generate a replacement file.

[0143] Step 5.2 The point tester simulates an IEC61850 client, and the backstage simulates an IEC61850 server to establish communication at the bay level through the agreed IP.

[0144] Step 5.3 After the communication in Step 5.2 is established, obtain the replacement record file in a specific directory of the monitoring backstage based on the file service function of the DLT860 protocol.

[0145] Step 5.4 Analyze the summoned replacement file and save the replacement file data. The saved replacement file data includes: measurement point reference, replacement value, and replacement time stamp. For the same measurement point, only the last data record is saved.

[0146] Step 5.5 According to the list of data sent recorded in Step 4, sequentially match the measurement point reference, replacement value, and replacement time stamp in the replacement data list in Step 5.4. If all three match successfully, it means that the configuration of this measurement point in the backstage database is correct; otherwise, it is incorrect, and the data result is recorded and saved.

[0147] Step 5.6 After the test is completed, cancel the replacement enable for the test points in Step 3 in sequence.

[0148] Step 6. According to the corresponding picture file list data obtained in Step 2, the point tester sequentially enables the corresponding measurement point data in the simulated protection device and measurement and control device libraries of the local machine.

[0149] The enabling operation steps of the point tester are as follows:

[0150] Step 6.1 Sequentially extract the enabling measurement point addresses in the picture file list, and set the function constraints corresponding to the enabling addresses in the model library to replace IEC61850_FC_SV.

[0151] Step 6.2 Set the value corresponding to the enabling address in the model library to 1.

[0152] Step 7. After the point tester enables all the test data in Step 6, notify the backstage personnel via the in-station intercom that they can start recording replacement data. After the backstage personnel feedback that they are ready, the point tester automatically sends MMS data messages to set the values of the measuring points in the backstage according to the measuring point indexes in the test list. The setting method is to send the on-off setting for the tele-signaling in sequence, and increase the setting for the telemetry in sequence (the starting value and the increment value can be set, the default starting value is 1, and the increment value is 0.1). And at this time, the data quality of the MMS message sent must be the replacement quality 0x10, and record the final value and time stamp sent for each test point.

[0153] Step 8. After the point tester automatically sends the data, summon and parse the replacement file, and perform consistency verification between the sent sequence data and the data in the replacement file.

[0154] The steps for summoning the replacement file and data consistency verification include:

[0155] Step 8.1. After the point tester automatically sends the data, notify the backstage personnel via the in-station intercom to stop receiving the replacement data. At this time, the backstage will generate a replacement file.

[0156] Step 8.2. The point tester simulates an IEC61850 client, and the backstage simulates an IEC61850 server, and establishes communication at the bay level through the agreed IP.

[0157] Step 8.3. After the communication in Step 5.2 is established, obtain the replacement record file in a specific directory of the monitoring backstage based on the file service function of the DLT860 protocol.

[0158] Step 8.4. Parse the summoned replacement file and save the replacement file data. The saved replacement file data includes: measuring point reference, replacement value value, replacement time stamp time, and only the last data record of the same measuring point is saved.

[0159] Step 8.5. According to the list of the sent data recorded in Step 7, perform matching of the measuring point reference, replacement value value, and replacement time stamp time in the replacement data list in Step 8.4 in sequence. If all three match successfully, it means that the configuration of this measuring point in the backstage screen is correct, otherwise it is incorrect, and record and save the data result.

[0160] Step 8.6. After the test is completed, cancel the replacement enable for the tests in Step 6 in sequence.

[0161] Step 9. For the comparison results of Step 5 and Step 8, form a verification result report for the backstage database file and a verification result report for the backstage screen.

[0162] The embodiment of the present application further provides a device for validating the data of a substation background database. The device includes:

[0163] An acquisition module, configured to acquire model data through a first terminal and acquire database data and screen data through a second terminal;

[0164] A processing module, configured to perform a first consistency check on the database data and / or the screen data according to the model data, and determine the model data consistency and data attributes of each target model;

[0165] Wherein, the target models include protection devices and measurement and control devices;

[0166] The processing module is further configured to execute a data validity check process on each of the target models according to the database data and / or the screen data, and obtain a validity check result.

[0167] In this embodiment, the validation of the data of the substation background database is completed in an automated manner. First, through the first terminal at the front end, that is, the point-to-point tester, the model data is acquired, the measurement point index and the substitution enable index are formed, and the database file and the screen file are pulled and parsed through the second terminal, that is, the monitoring background. After the model consistency check, the data consistency situation and the enable attribute situation can be confirmed, so as to execute the subsequent data validity check and debugging process. The data validity check of the substation background database is completed through the data check of the substitution file and the data message. Thus, the automation level of the check process is improved, and further, the efficiency and effectiveness of the substation database data check are improved. During the check process, a corresponding record report is generated, and the real-time monitoring of the data validity check process can be realized, so as to further improve the timeliness of the data validity check of the substation background database.

[0168] As an optional implementation manner, the first terminal includes a point-to-point tester, the second terminal includes a monitoring background, the data attribute of the target model includes an enable attribute, and the processing module is further configured to:

[0169] Perform an enable operation on each of the target models through the point-to-point tester;

[0170] Through the point-to-point tester, according to the measurement point index corresponding to each target model, send a target data message to the monitoring background to set the measurement point value;

[0171] Acquire the substitution file of the monitoring background, and perform a second consistency check on the target data message according to the substitution file.

[0172] In this embodiment, during the data validity verification process, first, corresponding enabling operations are performed on the target models with enabling attributes to trigger the data validity verification process. After all the target models are enabled, the monitoring background is triggered to start receiving data from the point-to-point tester. The point-to-point tester sends telecontrol data and telemetry data to set specific logical values and numerical values according to the determined measuring point indexes. Then, according to the replacement file and the target data message of the monitoring background, the second consistency verification in terms of communication is performed to confirm the validity of the measuring point configuration, and the data validity verification of the database or the screen is completed. Thus, the automation level of the verification process is improved, and furthermore, the efficiency and effectiveness of the substation database data verification are improved. During the verification process, corresponding files can also be generated for data confirmation and data traceability, and the verification process of real-time monitoring data validity can be realized, thereby also improving the timeliness of the substation background database data validity verification.

[0173] As an optional embodiment, the processing module is further configured to: through the point-to-point tester, based on the measuring point indexes corresponding to the target models, send telecontrol data and telemetry data according to preset data quality; wherein, the telecontrol data includes set data switched from the first state to the second state, and the telemetry data includes increment data determined according to a preset starting value and an increment value; record the telecontrol data and telemetry data corresponding to each measuring point in the measuring point indexes at the target moment.

[0174] In this embodiment, after the point-to-point tester enables all the target models, according to the measuring point indexes corresponding to the target models, message data of replacement quality is sent, so as to set specific attributes of the target models, and record the message data values and time stamps of each test point at the target moment, thereby completing the data setting process, improving the automation level of the verification process, and improving the efficiency and effectiveness of the substation background data verification.

[0175] As an optional embodiment, the processing module is further configured to:

[0176] Establish a simulated client at the point-to-point tester and establish a simulated server at the monitoring background, and establish communication at the bay level;

[0177] Obtain the replacement file of the monitoring background, parse the replacement file, and determine the replacement file data;

[0178] Wherein, the replacement file data includes one or more of measuring points, replacement values, replacement time stamps;

[0179] According to the target data message, compare the consistency between the replacement file data and the target data message to complete the second consistency verification.

[0180] After sending the target data message to the point tester, this embodiment performs the process of generating and parsing replacement files, and further performs the second consistency check in terms of communication to confirm the effectiveness of the measurement point configuration. Specifically, by establishing simulation terminals under a preset protocol at both ends of the point tester and the monitoring background, and realizing the communication of the interval layer through a preset address. After establishing the communication, based on the preset file service function, obtain the replacement file and parse it to obtain one or more replacement file data such as measurement points, replacement values, and replacement time stamps. According to the sent target data message, perform matching based on the replacement file data. If the matching is successful, it indicates that the measurement points are correctly configured at the monitoring background end. Thus, automated data validity verification is achieved, and the efficiency and effectiveness of substation background data verification are improved.

[0181] As an optional embodiment, the obtaining module is further configured to:

[0182] Parse the model data of each layer according to the model file;

[0183] Form a measurement point index according to the model data.

[0184] In this embodiment, the model file is imported and parsed at the point tester end, and the model data of each layer is parsed and used to establish a measurement point index in a preset form to simplify the data interaction and measurement point positioning processes in subsequent model matching and data validity detection, and improve the efficiency and effectiveness of substation background data verification.

[0185] As an optional embodiment, the obtaining module is further configured to:

[0186] Obtain access points according to the model file;

[0187] Obtain the logical devices under each access point according to the access points;

[0188] Obtain the common logical nodes and non-common logical nodes under each logical device;

[0189] Determine the data set and the data item information under the data set according to the common logical nodes, where the data item information includes the reference object name and the reference function constraint;

[0190] Determine the data object list and the data attribute list under the data object according to the non-common logical nodes.

[0191] After importing the model file at the point tester side in this embodiment, according to the attributes of the model file, the model data of each layer is parsed and obtained. First, all access points under the model file are obtained, then the logical devices under each access point are obtained, and further the common logical nodes and non-common logical nodes corresponding to the logical devices are respectively obtained, and the detailed attributes under the logical nodes are determined. Thus, according to the parameters of each layer, corresponding measurement point indexes are generated according to the logic or instructions of the preset processing language, so as to simplify the data interaction and measurement point positioning processes in the subsequent model matching and data validity detection processes, and improve the efficiency and effectiveness of the substation background data inspection.

[0192] As an alternative embodiment, the processing module is further configured to:

[0193] Parse the database data and / or the screen data to obtain a data list;

[0194] Wherein, the data list includes the measurement point serial number, the measurement point index, and the measurement point description;

[0195] Through the measurement point index, perform a first matching process between the data list and the model data. If the matching result of the first matching process is successful, then through the measurement point description, perform a second matching process between the data list and the model data. If the matching result of the second matching process is successful, then perform a first consistency check.

[0196] In the process of model consistency check in this embodiment, first, the database data and / or the screen data are exported at the monitoring background end to obtain a data list, so as to be compared with the model data obtained at the point tester side. Through the information in the data list, compare whether the paths, signal descriptions, and model-related information of the telecontrol and telemetry signal data conform to the corresponding information in the model data. If all items of information conform, it indicates that the consistency check of the model passes. Further, the enabling attributes of each model can be determined while the model is being checked, and then the measurement point serial number, the measurement point index, and the replacement enabling index corresponding to the measurement point index are recorded and saved. Thus, further data verification can be performed on each target model with enabling attributes, improving the automation level of the inspection process, and further improving the efficiency and effectiveness of the substation database data inspection. A corresponding record report is generated during the inspection process, and the inspection process for real-time monitoring data validity can be realized, thereby also improving the timeliness of the substation background database data validity inspection.

[0197] It should be noted that it should be understood that the division of each module of the above device is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. And these modules can all be implemented in the form of software called by a processing element; they can also all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the processing module can be a separately established processing element, or can be integrated in a certain chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and the function of the above processing module is called and executed by a certain processing element of the above device. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or can be independently implemented. Here, the processing element can be an integrated circuit with the ability to process signals. In the implementation process, each step of the above method or each of the above modules can be completed by the integrated logic circuit in the processor element or the instruction in the form of software.

[0198] Schematically, as Figure 4 shown, Figure 4 is a schematic internal structure diagram of a computer device provided by an embodiment of the present application. The computer device 300 can be provided as a server. Referring to Figure 4 , the computer device 300 includes a processing component 302, which further includes one or more processors, and memory resources represented by the memory 301 for storing instructions executable by the processing component 302, such as application programs. The application programs stored in the memory 301 can include one or more modules each corresponding to a set of instructions. In addition, the processing component 302 is configured to execute instructions to perform the text recognition method of any of the above embodiments.

[0199] The computer device 300 may further include a power supply component 303 configured to perform power management of the computer device 300, a wired or wireless network interface 304 configured to connect the computer device 300 to a network, and an input / output (I / O) interface 305. The computer device 300 can operate based on an operating system stored in the memory 301, such as Windows Server TM, Mac OS XTM, Unix TM, Linux TM, Free BSDTM or the like.

[0200] Those skilled in the art can understand that Figure 4 the structure shown in is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different component layout.

[0201] An embodiment of the present application provides a storage medium storing computer-readable instructions, which, when executed by one or more processors, cause the one or more processors to execute the method provided in any of the embodiments.

[0202] Finally, it should also be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0203] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0204] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for validating substation background data, characterized in that The method includes: Obtaining model data through a first terminal, and obtaining database data and screen data through a second terminal; Performing a first consistency check on the database data and / or the screen data according to the model data to determine the model data consistency and data attributes of each target model; Wherein, the target models include protection devices and measurement and control devices; Performing a data validity check process on each of the target models according to the database data and / or the screen data to obtain a validity check result.

2. The method according to claim 1, wherein The first terminal includes a point-to-point tester, the second terminal includes a monitoring background, the data attributes of the target model include an enabling attribute, and the data validity check process includes: Performing an enabling operation on each of the target models through the point-to-point tester; Through the point-to-point tester, according to the measurement point indexes corresponding to each of the target models, sending a target data message to the monitoring background to set the measurement point values; Obtaining the replacement file of the monitoring background, and performing a second consistency check on the target data message according to the replacement file.

3. The method according to claim 2, wherein The step of sending a target data message to the monitoring background through the point-to-point tester according to the measurement point indexes corresponding to each of the target models to set the measurement point values includes: Based on the measurement point indexes corresponding to each of the target models, sending telecontrol information data and telemetry data through the point-to-point tester based on preset data quality; Wherein, the telecontrol information data includes setting data switched from a first state to a second state, and the telemetry data includes increment data determined according to a preset starting value and an increment value; Recording the telecontrol information data and telemetry data corresponding to each measurement point in the measurement point indexes at a target moment.

4. The method according to claim 2, wherein The step of obtaining the replacement file of the monitoring background and performing a second consistency check on the target data message according to the replacement file includes: Establishing a simulated client at the point-to-point tester, establishing a simulated server at the monitoring background, and establishing communication at the bay level; Obtaining the replacement file of the monitoring background, and parsing the replacement file to determine replacement file data; Wherein, the replacement file data includes one or more of measurement points, replacement values, replacement time stamps; Comparing the replacement file data with the target data message according to the target data message to complete the second consistency check.

5. The method according to any one of claims 1-4, characterized in that, The step of obtaining model data through the first terminal includes: Obtaining a model file through the first terminal, and parsing the model data of each level according to the model file; The method further includes: Forming measurement point indexes related to the target model according to the model data.

6. The method according to claim 5, characterized in that, The step of parsing the model data of each level according to the model file includes: Obtaining access points according to the model file; Obtaining the logical devices under each access point according to each of the access points; Obtaining the common logical nodes and non-common logical nodes under each of the logical devices; Determining the data set and the data item information under the data set according to each of the common logical nodes, and the data item information includes a reference object name and a reference function constraint; Determining the data object list and the data attribute list under the data object according to each of the non-common logical nodes.

7. The method according to claim 5, characterized in that, Performing a first consistency check on the database data and / or the screen data according to the model data includes: Parsing the database data and / or the screen data to obtain a data list; Wherein the data list includes a measuring point serial number, the measuring point index, and measuring point description information; Through the measuring point index, performing a first matching process on the data list and the model data. If the matching result of the first matching process is successful, then through the measuring point description, performing a second matching process on the data list and the model data. If the matching result of the second matching process is successful, then the first consistency check is passed.

8. A substation background data validity verification device, characterized in that, The device includes: An acquisition module for acquiring model data through a first terminal and acquiring database data and screen data through a second terminal; A processing module for performing a first consistency check on the database data and / or the screen data according to the model data to determine the model data consistency situation and data attributes of each target model; Wherein the target models include protection devices and measurement and control devices; The processing module is further configured to perform a data validity check process on each of the target models according to the database data and / or the screen data to obtain a validity check result.

9. A computer device, characterized in that, Comprising one or more processors and a memory, wherein computer-readable instructions are stored in the memory, and when the computer-readable instructions are executed by the one or more processors, the steps of the method according to any one of claims 1-7 are executed.

10. A storage medium, characterized in that, Computer-readable instructions are stored in the storage medium, and when the computer-readable instructions are executed by one or more processors, one or more processors are caused to execute the steps of the method according to any one of claims 1-7.

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