Intelligent substation reconstruction and extension configuration file verification system

Abstract

According to the intelligent substation reconstruction and extension configuration file verification system provided by the invention, through the SCD visual display unit, the SCD comparison unit and the CCD comparison unit, in-station reconstruction and extension, direct, indirect and other operation equipment are visually displayed in a classified manner through a data visualization effect, equipment configuration change reasons are analyzed, operation and maintenance personnel are helped to rapidly understand configuration file modification contents, and the verification efficiency is improved. Project debugging is prevented from being affected by configuration file modification, and verification efficiency and accuracy are improved. The system comprises an SCD visual display unit which is used for displaying an IED equipment list and displaying equipment types in a classified manner; the SCD comparison unit is used for respectively acquiring a substation configuration file SCD before reconstruction and extension and a substation configuration file SCD after reconstruction and extension to carry out substation level comparison; the CCD comparison unit is used for respectively acquiring a bus difference configuration file CCD file before reconstruction and extension and a bus difference configuration file CCD file after reconstruction and extension to carry out process layer comparison; and the report query and system help unit queries reports and provides operation guide and software version upgrade.

Description

Technical Field

[0001] The present invention relates to the technical field of smart substations, and in particular to a configuration file verification system for smart substation reconstruction and expansion. Background Art

[0002] With the continuous deepening of smart grid construction, the number and scale of smart substations are growing rapidly. Smart substations use digital sampling, networked transmission and intelligent control, which greatly improves the reliability and operation efficiency of the power system. However, with the continuous advancement of technology and the continuous expansion of the power grid, the demand for the renovation and expansion of smart substations is also increasing.

[0003] The operation of smart substations relies on complex configuration files, among which the secondary circuit configuration information of smart substations is stored in the process layer configuration files of the device. These files contain the configuration information, communication relationships and logical control of all smart devices in the substation. When renovating and expanding, it is necessary to modify the SCD file, re-export the station control layer and process layer configuration files, and then download them to the device. In this process, for cross-interval protection (such as busbar protection), it cannot be guaranteed that the modification of the SCD file only involves the renovated and expanded interval part, and the non-renovated and expanded interval part may also be modified by mistake. Therefore, effective confirmation means are needed to ensure the accuracy and security of the configuration files.

[0004] Traditional configuration file verification methods mainly rely on manual work, which is not only time-consuming and labor-intensive, but also prone to errors. During the expansion and renovation of smart substations, manual verification of configuration files often fails to ensure accuracy and completeness, which brings great challenges to engineering commissioning and operation and maintenance. Errors or inconsistencies in configuration files may lead to serious consequences such as equipment malfunction or refusal to operate, and even cause power grid accidents. During the expansion and renovation of smart substations, the security risks are significantly increased due to the frequent modification and update of configuration files.

[0005] In view of the above challenges and difficulties, it is particularly important to develop a configuration file verification system for intelligent substation renovation and expansion. The configuration file verification system for intelligent substation renovation and expansion can quickly and accurately verify the configuration file through automation and intelligent means, greatly improving the verification efficiency and accuracy. This helps to reduce errors and omissions caused by manual verification and ensure the correctness and consistency of the configuration file.

[0006] The system can also accurately evaluate the modification of the process layer configuration files and determine the verification scope of the secondary circuit after the expansion and renovation, thereby effectively reducing the workload and safety risks of secondary personnel in the expansion and renovation commissioning acceptance link. At the same time, through the effect of data visualization, the operation and inspection personnel can quickly understand the modification content of the configuration files and promptly discover and deal with potential safety hazards.

[0007] In summary, the research and development and application of the configuration file verification system for the renovation and expansion of smart substations are of great significance and necessity. It can not only improve the verification efficiency and accuracy and reduce safety risks, but also support the sustainable development of smart substations and improve the level of operation and maintenance management. Summary of the invention

[0008] The present invention aims to provide a smart substation renovation and expansion configuration file verification system in response to the technical defects of the prior art. Through the SCD visualization display unit, SCD comparison unit, and CCD comparison unit, the system can intuitively classify and present the renovation and expansion, direct, indirect and other operating equipment in the station through data visualization effects, analyze the reasons for equipment configuration changes, help operation and maintenance personnel quickly understand the configuration file modification content, avoid the configuration file modification problem affecting the project debugging, and improve the verification efficiency and accuracy.

[0009] The present invention provides the following technical solution: a configuration file verification system for smart substation reconstruction and expansion, comprising:

[0010] SCD visual display unit, showing the IED device list and classifying the device types;

[0011] The SCD comparison unit obtains the substation configuration file SCD file before the reconstruction and expansion and the substation configuration file SCD file after the reconstruction and expansion for comparison at the station control layer;

[0012] The CCD comparison unit obtains the CCD file of the mother difference configuration file before the reconstruction and expansion and the CCD file of the mother difference configuration file after the reconstruction and expansion for process layer comparison;

[0013] Report query and system help unit, query reports and provide operation guides and software version upgrades.

[0014] Preferably, the SCD visualization display unit realizes visualization display through a substation management module, and the substation management module includes creating a substation, deleting a substation, importing the SCD before reconstruction and expansion, importing the SCD after reconstruction and expansion, and resetting the SCD file.

[0015] Preferably, the SCD comparison unit is implemented through a station control layer comparison module, and the station control layer comparison module includes a modification and expansion equipment change table, an equipment change association table, an input virtual terminal table, an output virtual terminal table, an analog input virtual terminal table, an analog output virtual terminal table, a communication configuration information table, and a saved comparison report.

[0016] Preferably, the CCD comparison unit is implemented by a mother difference modification and expansion module and a process layer comparison module, the mother difference modification and expansion module includes return, online acquisition before modification and expansion, online acquisition after modification and expansion, offline acquisition before modification and expansion, offline acquisition after modification and expansion, resetting process layer configuration, and saving, the CCD comparison unit imports the CCD files before modification and expansion and after modification and expansion respectively through the mother difference modification and expansion module, and then obtains the CCD comparison report through the process layer comparison module.

[0017] Preferably, the SCD display creates a substation through the substation management module, determines the voltage level and the substation name, imports the SCD before the renovation and expansion and the SCD after the renovation and expansion from the smart substation background configuration network port, and forms an SCD list after the import is completed. The SCD list includes the serial number, substation name, voltage level, SCD before the renovation and expansion, SCD after the renovation and expansion, and SCD comparison report. Click the visualization button to view the visualized SCD list, and the visualized SCD list displays the IED device list, device association table,

[0018] The input quantity virtual terminal table, output quantity virtual terminal table, analog quantity input virtual terminal table, analog quantity output virtual terminal table, communication configuration information table, and input quantity table are exported. The visualized SCD list includes the SCD list before reconstruction and expansion and the SCD list after reconstruction and expansion.

[0019] Preferably, the SCD comparison displays the association relationship between IED devices through a single device logical link diagram.

[0020] Preferably, the comparison content of the SCD comparison unit includes the increase and decrease of IEDs, the addition and deletion of SV control blocks, SV control block parameters, the addition and deletion of GOOSE control blocks, GOOSE control block parameters, changes in the number and sequence numbers of data set entries, parameters of data set entries, changes in the number of received information, increases and decreases in external references and changes in entry sequence numbers, and external reference addresses.

[0021] Preferably, the CCD comparison report includes serial number, original IEDName, current IEDName, IED description, model, CRC before modification and expansion, CRC after modification and expansion, result, and operation. The comparison result is generated by comparing whether the CRC before modification and expansion is consistent with the CRC after modification and expansion.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the above technical scheme, the intelligent substation reconstruction and expansion configuration file verification system includes: an SCD visualization display unit, which displays the IED device list and displays the device type by category; an SCD comparison unit, which obtains the substation configuration file SCD file before the reconstruction and expansion and the substation configuration file SCD file after the reconstruction and expansion for station control layer comparison; a CCD comparison unit, which obtains the mother difference configuration file CCD file before the reconstruction and expansion and the mother difference configuration file CCD file after the reconstruction and expansion for process layer comparison; a report query and system help unit, which queries reports and provides operation guides and software version upgrades;

[0024] The present invention discloses a configuration file verification system for smart substation reconstruction and expansion, and the configuration file verification system for smart substation reconstruction and expansion is intended to ensure the accuracy and consistency of the configuration file during the reconstruction and expansion of the smart substation. The system comprises:

[0025] 1. SCD Visual Display Unit

[0026] Function description: This unit is mainly responsible for displaying the list of IED (intelligent electronic device) devices in the smart substation, and classifying and displaying these devices by type. Through visualization, operation and maintenance personnel can intuitively understand the configuration and operation status of the devices in the substation;

[0027] Technical features: Using a graphical interface, the IED device list and its classification are clearly displayed, the device status is updated and displayed dynamically in real time, and convenient navigation and search functions are provided to facilitate operation and maintenance personnel to quickly locate the required equipment;

[0028] 2. SCD Comparison Unit

[0029] Function description: This unit is responsible for obtaining the substation configuration file SCD file before and after the renovation and expansion, and performing a comparison analysis at the station control layer. By comparing, the changes in the configuration file during the renovation and expansion process can be identified, thereby ensuring the correctness and consistency of the configuration;

[0030] Technical features:

[0031] Supports efficient and accurate file comparison algorithms, can quickly identify differences in configuration files, and provide detailed comparison result reports, including differences, impact scope, and recommended repair measures; supports importing and exporting SCD files in multiple formats, facilitating data exchange with other systems;

[0032] 3. CCD comparison unit

[0033] Function description: This unit is responsible for obtaining the bus differential protection configuration file CCD files before and after the reconstruction and expansion, and performing comparative analysis at the process level. Through the comparison, the correctness and consistency of the bus differential protection configuration during the reconstruction and expansion process can be ensured, thereby ensuring the safe and stable operation of the power grid;

[0034] Technical features:

[0035] Comparative analysis of process layer configuration files ensures the accuracy and reliability of bus differential protection, provides detailed comparison results and difference analysis, and helps operation and maintenance personnel quickly locate problems and take corresponding repair measures.

[0036] 4. Report Query and System Help Unit

[0037] Function description: This unit provides a report query function, which allows operation and maintenance personnel to view the result report of configuration file verification at any time. At the same time, it also provides system help functions, including operation guides and software version upgrades, to ensure that operation and maintenance personnel can use the system correctly and obtain the latest technical support at any time;

[0038] Technical features:

[0039] It provides convenient report query function, supports filtering and sorting by time, device type and other conditions, provides detailed operation guides and FAQs to help operation and maintenance personnel quickly get started and solve problems encountered during use, supports online upgrade and update of software versions to ensure that the system always has the latest functions and performance.

[0040] In summary, the smart substation renovation and expansion configuration file verification system realizes the comprehensive, accurate and efficient verification and analysis of the configuration files in the process of smart substation renovation and expansion through the collaborative work of various components. Through the effect of data visualization, it intuitively presents the renovation and expansion, direct, indirect and other operating equipment in the station, analyzes the reasons for equipment configuration changes, and helps operation and maintenance personnel quickly understand the configuration file modifications to avoid configuration file modification problems affecting project debugging. The system not only improves the work efficiency and quality of operation and maintenance personnel, but also ensures the safe and stable operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A diagram of a visualization device of the present invention;

[0042] Figure 2 It is a diagram of equipment relationship of a single device;

[0043] Figure 3 It is the mother difference modification and expansion diagram;

[0044] Figure 4 Get the graph online for the mother difference;

[0045] Figure 5 Get the diagram for the mother difference offline;

[0046] Figure 6 It is the process layer comparison diagram;

[0047] Figure 7 It is the CRC comparison difference map;

[0048] Figure 8 Query graph for CCD report. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0050] like Figures 1-2 As shown, it shows a specific embodiment of the present invention: Figures 1 to 8 As shown, the intelligent substation reconstruction and expansion configuration file verification system disclosed in the present invention includes:

[0051] SCD visual display unit, showing the IED device list and classifying the device types;

[0052] The SCD comparison unit obtains the substation configuration file SCD file before the reconstruction and expansion and the substation configuration file SCD file after the reconstruction and expansion for comparison at the station control layer;

[0053] The CCD comparison unit obtains the CCD file of the mother difference configuration file before the reconstruction and expansion and the CCD file of the mother difference configuration file after the reconstruction and expansion for process layer comparison;

[0054] Report query and system help unit, query reports and provide operation guides and software version upgrades.

[0055] The system software in the present invention is developed based on Qt4.8.4, can run on Linux and Windows across platforms, and has a wide range of applications.

[0056] Preferably, Figure 2 As shown, the SCD visualization display unit realizes visualization display through the substation management module, and the substation management module includes creating a substation, deleting a substation, importing the SCD before reconstruction and expansion, importing the SCD after reconstruction and expansion, and resetting the SCD file.

[0057] The SCD visualization unit is an important module in the configuration file verification system for smart substation renovation and expansion. It mainly provides visualization function, which is realized through the substation management module.

[0058] 1. Overview of Substation Management Module

[0059] The substation management module is the core of the SCD visualization display unit. It is responsible for managing and maintaining the configuration files of the smart substation, including creating substations, deleting substations, importing SCD files before and after renovation and expansion, and resetting SCD files. Through these functions, operation and maintenance personnel can easily manage the configuration information of the substation and ensure the accuracy and consistency of the configuration files.

[0060] 2. Functional description

[0061] Create a substation

[0062] Function description: Allows operation and maintenance personnel to create a new substation project and set basic configuration information for it, such as substation name and voltage level.

[0063] Operation process: The operation and maintenance personnel log in through the user interface, enter the substation management module, click Create Substation, enter the basic information of the substation, and select the corresponding configuration file template. The system will automatically generate a new substation project.

[0064] Delete Substation

[0065] Function description: Allows operation and maintenance personnel to delete substation projects that are no longer needed to release system resources.

[0066] Operation process: The operation and maintenance personnel select the substation project to be deleted through the interface and confirm the deletion operation. The system will then delete the project and its related configuration files.

[0067] Import SCD before renovation and expansion

[0068] Function description: Allows operation and maintenance personnel to import the substation configuration file SCD file before renovation and expansion for comparison and analysis.

[0069] Operation process: The operation and maintenance personnel select the SCD file to be imported through the interface and confirm the import operation. The system will then load the file into the system and display its device list and configuration information in the visual display unit.

[0070] SCD after introduction, renovation and expansion

[0071] Function description: Similar to importing the SCD file before renovation and expansion, but used to import the SCD file of the substation configuration file after renovation and expansion.

[0072] Operation process: The operation and maintenance personnel select the SCD file after renovation and expansion to be imported through the interface and confirm the import operation. The system will then load the file into the system and compare and analyze it with the SCD file before renovation and expansion.

[0073] Reset SCD file

[0074] Function description: Allows operation and maintenance personnel to reset the currently loaded SCD file to restore it to the initial state or reload other SCD files.

[0075] Operation process: The operation and maintenance personnel select the reset operation through the interface, and the system will clear the currently loaded SCD file and its related information, and allow the operation and maintenance personnel to reload other SCD files.

[0076] 3. Visual display features

[0077] Intuitiveness: The configuration information of the substation is displayed through a visual list interface, allowing operation and maintenance personnel to intuitively understand the configuration and operating status of the equipment in the substation.

[0078] Real-time: Supports real-time update and dynamic display of equipment status, ensuring that operation and maintenance personnel can grasp the latest configuration information of the substation at any time.

[0079] Interactivity: Provides convenient navigation and search functions, as well as detailed display and editing of device information, allowing operation and maintenance personnel to quickly locate the required equipment and perform corresponding operations.

[0080] In summary, the substation management module provides strong support and guarantee for the SCD visualization display unit by providing functions such as creating substations, deleting substations, importing SCD files before and after renovation and expansion, and resetting SCD files. At the same time, through the characteristics of visualization display, operation and maintenance personnel can manage the configuration information of smart substations more conveniently and efficiently, and ensure the accuracy and consistency of configuration files.

[0081] Preferably, Figures 1-2 As shown, the SCD comparison unit is implemented through the station control layer comparison module, and the station control layer comparison module includes a modification and expansion equipment change table, an equipment change association table, an input virtual terminal table, an output virtual terminal table, an analog input virtual terminal table, an analog output virtual terminal table, a communication configuration information table, and a saved comparison report.

[0082] The SCD comparison unit is a key part of the intelligent substation reconstruction and expansion configuration file verification system. It uses the station control layer comparison module to achieve a detailed comparison of the substation configuration files before and after the reconstruction and expansion.

[0083] The station control layer comparison module is the core of the SCD comparison unit. It is responsible for comparing and analyzing the substation configuration file SCD file before and after the renovation and expansion to identify the changes in the configuration file during the renovation and expansion process. The module displays the comparison results through a series of tables, including the renovation and expansion equipment change table, equipment change association table, input quantity virtual terminal table, output quantity virtual terminal table, analog quantity input virtual terminal table, analog quantity output virtual terminal table, communication configuration information table, etc., and supports saving the comparison report so that the operation and maintenance personnel can view and analyze it at any time.

[0084] Equipment modification and expansion table

[0085] This table lists the equipment that was added, deleted or modified during the renovation and expansion process and its related information, such as equipment name, model, location, etc.

[0086] By comparing the equipment lists before and after the renovation and expansion, operation and maintenance personnel can clearly understand which equipment has changed and the specific content of the changes.

[0087] Equipment Change Association Table

[0088] This table shows the relationship between devices during the renovation and expansion process, including the connection relationship and communication relationship between devices.

[0089] Through this table, operation and maintenance personnel can understand the impact of device changes on other devices and the dependencies between devices.

[0090] Table of virtual terminals for open input

[0091] This table lists the information of all virtual terminals of input quantities in the substation before and after the reconstruction and expansion, including the name of the virtual terminal, the equipment it belongs to, the connection status, etc.

[0092] By comparing the virtual terminal tables of input quantities before and after the renovation and expansion, operation and maintenance personnel can identify which virtual terminals have changed and the specific content of the changes.

[0093] Output quantity virtual terminal table

[0094] Similar to the input virtual terminal table, this table lists the information of all output virtual terminals in the substation before and after the reconstruction and expansion.

[0095] By comparing the table of virtual terminals before and after the renovation and expansion, operation and maintenance personnel can understand the changes in the virtual terminals.

[0096] Analog input virtual terminal table

[0097] This table lists the information of all analog input virtual terminals in the substation before and after the reconstruction and expansion, including the virtual terminal name, the device to which it belongs, the measurement range, etc.

[0098] By comparing the analog input virtual terminal table before and after the renovation and expansion, operation and maintenance personnel can identify changes in the analog input virtual terminals.

[0099] Analog output virtual terminal table

[0100] Similar to the analog input virtual terminal table, this table lists the information of all analog output virtual terminals in the substation before and after the reconstruction and expansion.

[0101] By comparing the analog output virtual terminal tables before and after the renovation and expansion, operation and maintenance personnel can understand the changes in the analog output virtual terminals.

[0102] Communication configuration information table

[0103] This table lists all communication configuration information in the substation before and after the renovation and expansion, including communication protocol, communication rate, communication address, etc.

[0104] By comparing the communication configuration information tables before and after the renovation and expansion, operation and maintenance personnel can identify changes in the communication configuration and ensure the correctness and consistency of the communication system.

[0105] Save comparison report

[0106] This function allows operation and maintenance personnel to save the comparison results as a report file for viewing and analysis at any time.

[0107] The comparison report should include the contents of all the above tables, as well as a summary and analysis of the comparison results.

[0108] The operation and maintenance personnel first select the SCD files before and after the renovation and expansion that need to be compared through the interface. The system automatically loads the file and parses the information required by the above table. The operation and maintenance personnel view the comparison results of each table through the interface and identify the changes in the configuration files. If further analysis or saving of the comparison results is required, the operation and maintenance personnel can choose to save the comparison report function.

[0109] In summary, the station control layer comparison module uses a series of tables to display the comparison results of substation configuration files before and after the renovation and expansion, and supports saving comparison reports. These functions provide operation and maintenance personnel with convenient and efficient comparison and analysis methods, which help ensure the correctness and consistency of configuration files during the renovation and expansion of smart substations.

[0110] Preferably, Figures 3 to 6As shown, the CCD comparison unit is implemented by a mother difference modification and expansion module and a process layer comparison module. The mother difference modification and expansion module includes return, online acquisition before modification and expansion, online acquisition after modification and expansion, offline acquisition before modification and expansion, offline acquisition after modification and expansion, resetting process layer configuration, and saving. The CCD comparison unit imports the CCD files before and after modification and expansion respectively through the mother difference modification and expansion module, and then obtains the CCD comparison report through the process layer comparison module.

[0111] The CCD comparison unit plays a vital role in the busbar modification and expansion process of the smart substation. It mainly realizes the comparison and analysis of CCD files before and after the modification and expansion through the busbar modification and expansion module and the process layer comparison module.

[0112] The mother difference reconstruction and expansion module is one of the core parts of the CCD comparison unit. It is responsible for importing the CCD files before and after reconstruction and expansion. The module includes the following functions:

[0113] Return: This function allows the user to return to the previous menu or main interface at any time to perform other operations or view other information.

[0114] Enter the bus differential modification and expansion interface, which supports both offline and online methods to obtain configuration files.

[0115] Online acquisition before / after renovation and expansion: These two functions allow users to obtain CCD files before and after renovation and expansion of smart substations in real time through the smart substation bus differential protection configuration network port connection. In the online acquisition mode, you can select "six unified" or "nine unified" bus differential protection, and select the manufacturer.

[0116] Offline acquisition before / after renovation and expansion:

[0117] Compared with the online acquisition function, these two functions allow users to import CCD files before and after renovation and expansion from local storage devices (such as hard disks, USB flash drives, etc.). In offline acquisition mode, you can directly import configuration files before and after renovation and expansion. In offline acquisition mode, you can perform multiple renovation and expansion comparisons by resetting the process layer configuration.

[0118] Reset process layer configuration:

[0119] This function allows the user to clear the currently loaded process layer configuration information and restore it to the initial state.

[0120] Save: This function allows users to save the current comparison results or configuration information to a local storage device or cloud. This helps users view and analyze the comparison results at any time.

[0121] Process layer comparison module:

[0122] The process layer comparison module is responsible for comparing the CCD files before and after the renovation and expansion, and generating a detailed comparison report. This module implements the comparison function through the following steps:

[0123] Import files: Users import CCD files before and after reconstruction and expansion through the mother difference reconstruction and expansion module, and then compare them through the process layer comparison module.

[0124] The system will compare and analyze the CCD files before and after the renovation and expansion to identify differences in equipment information, configuration parameters, etc.

[0125] Generate report: Based on the comparison and analysis results, the system automatically generates a detailed CCD comparison report. The report should include comparison results, difference analysis, recommended measures, etc.

[0126] View the report:

[0127] Users can view the generated CCD comparison report through the interface and make corresponding adjustments and optimizations based on the suggestions in the report.

[0128] In summary, the CCD comparison unit realizes the comparison and analysis function of CCD files before and after the expansion through the bus differential expansion module and the process layer comparison module. These functions provide convenient and efficient comparison methods for operation and maintenance personnel, which helps to ensure the correctness and consistency of configuration files during the expansion of the bus differential of smart substations.

[0129] Preferably, Figures 1-2 As shown, the SCD shows that a substation is created through the substation management module, the voltage level and the substation name are determined, and the SCD before the renovation and expansion and the SCD after the renovation and expansion are respectively imported from the smart substation background configuration network port. After the import is completed, an SCD list is formed. The SCD list includes the serial number, substation name, voltage level, SCD before the renovation and expansion, SCD after the renovation and expansion, and SCD comparison report. The visualized SCD list can be viewed by clicking the visualization button. The visualized SCD list respectively displays the IED device list, device association table, input quantity virtual terminal table, output quantity virtual terminal table, analog quantity input virtual terminal table, analog quantity output virtual terminal table, communication configuration information table, and input quantity table export. The visualized SCD list includes the SCD list before the renovation and expansion and the SCD list after the renovation and expansion.

[0130] SCD display enables intuitive viewing and analysis of substation configuration information. First, the operation and maintenance personnel need to create a new substation project through the substation management module. In this process, the operation and maintenance personnel need to determine the voltage level and name of the substation, which is the basis for subsequent configuration and management.

[0131] After the substation project is created, the operation and maintenance personnel need to import the SCD files before and after the renovation and expansion from the smart substation backend configuration network port. These files contain key data such as the configuration information, connection relationship, and communication interface of the substation equipment. After the import is completed, the system will form an SCD list for displaying and managing these files.

[0132] The SCD list includes the following information: Serial number: used to identify the uniqueness of each SCD file; Substation name: displays the substation project to which the current SCD file belongs; Voltage level: displays the voltage level information of the current substation; SCD before renovation and expansion: import and display the SCD file before renovation and expansion; SCD after renovation and expansion: import and display the SCD file name or path after renovation and expansion; SCD comparison report: displays the report generated after comparing the SCD files before and after renovation and expansion, which is used to analyze the changes in configuration information.

[0133] Visual SCD list display: Operation and maintenance personnel can view the visual SCD list by clicking the visualization button. This list graphically displays key information in the SCD file, including: IED device list: Displays detailed information of all intelligent electronic devices (IEDs) in the substation, such as device name, model, function, etc.

[0134] Device association table: displays the connection and dependency relationships between devices, helping operation and maintenance personnel understand the mutual impact between devices.

[0135] Input quantity virtual terminal table, output quantity virtual terminal table: respectively display the information of input quantity and output quantity virtual terminals, including virtual terminal name, device to which it belongs, connection status, etc.

[0136] Analog input virtual terminal table, analog output virtual terminal table: respectively display the information of analog input and output virtual terminals, including measurement range, accuracy, etc.

[0137] Communication configuration information table: displays all communication configuration information in the substation, including communication protocol, communication rate, communication address, etc.

[0138] In addition, the visual SCD list also includes two sub-lists, one before and one after the renovation and expansion, which are used to display the configuration information before and after the renovation and expansion. Operation and maintenance personnel can identify changes in configuration information by comparing the two sub-lists.

[0139] Input meter export function

[0140] In the visual SCD list, operation and maintenance personnel can also choose to export the input meter as a file for subsequent analysis and processing. This function provides operation and maintenance personnel with more flexibility and convenience.

[0141] In summary, by creating a substation, importing SCD files before and after renovation and expansion, forming an SCD list, and visualizing the display of the SCD list through the substation management module, operation and maintenance personnel can intuitively view and analyze the configuration information of the smart substation. These functions provide operation and maintenance personnel with convenient and efficient configuration management tools, which help ensure the safe and stable operation of the substation.

[0142] Preferably, Figure 2 As shown, the SCD comparison shows the association relationship between IED devices through a single device logical link diagram.

[0143] The single-device logical link diagram is a graphical representation method that shows the association relationship and logical link between IED devices. It intuitively displays the connection relationship and communication path between IED devices in a list format, which is convenient for analysis: operation and maintenance personnel can clearly see the dependencies and mutual influences between IED devices, which helps to quickly locate and analyze problems.

[0144] Improved accuracy: With the single-device logical link diagram, operation and maintenance personnel can more accurately compare and analyze the configuration information changes in the SCD file before and after the renovation and expansion.

[0145] Preferably, the comparison content of the SCD comparison unit includes the increase and decrease of IEDs, the addition and deletion of SV control blocks, SV control block parameters, the addition and deletion of GOOSE control blocks, GOOSE control block parameters, changes in the number and sequence numbers of data set entries, parameters of data set entries, changes in the number of received information, increases and decreases in external references and changes in entry sequence numbers, and external reference addresses.

[0146] The SCD file extracts the complete process layer configuration information for each device and protects them with CRC codes. When the process layer configuration CRC code of a device changes, it means that the virtual circuit associated with the device has changed. The SCD file comparison module can compare any version of the SCD file during the construction of the smart substation and define the impact scope of the SCD change, which should be able to locate the IED device.

[0147] The content of SCD comparison includes:

[0148] (1) Increase or decrease of IEDs. The name parameter of IED is a global identifier in the system configuration file, so each IED is different. By comparing the IEDName in the new version of the file with the IEDName in the old version of the file, we can find out whether different intelligent devices have increased or decreased.

[0149] (2) Addition and deletion of SV control blocks. Determine whether the smvID parameters of the SV control blocks in the new and old files are the same. If they are the same, they are the same control blocks. Otherwise, they are added or deleted.

[0150] (3)SV control block parameters.

[0151] (4) Addition and deletion of GOOSE control blocks. Determine whether the APPID parameters of the GOOSE control blocks in the new and old files are the same. If they are the same, they are the same control blocks. Otherwise, they are added or deleted.

[0152] (5) GOOSE control block parameters.

[0153] (6) Changes in the number and sequence of data set entries. The increase, decrease, and order changes of entries are determined based on the reference address of the entry as an identifier.

[0154] (7) Parameters of data set entries. Compare the data types of reference objects.

[0155] (8) Changes in the amount of received information. Compare the addresses of the receiving nodes and determine the increase or decrease in input information by the increase or decrease in the address.

[0156] (9) Increase or decrease of external references and changes in entry numbers. Based on the comparison results of the corresponding internal short addresses of the external references of the new and old files, the increase, decrease and order changes of entries can be determined.

[0157] (10) External reference address. The external reference address indicates that the referenced message is a message associated with a certain IED. The comparison function finally outputs the configuration upgrade report, bus SUBCRC report, and information comparison detail report. For the SCD file comparison function, the GOOSE change scope can locate the changes to the DA level, and the SV change scope should be located to the DO level.

[0158] Preferably, Figure 7 As shown, the CCD comparison report includes serial number, original IEDName, current IEDName, IED description, model, CRC before modification and expansion, CRC after modification and expansion, result, and operation. The comparison result is generated by comparing whether the CRC before modification and expansion is consistent with the CRC after modification and expansion.

[0159] Figure 6In the table, the first row "Send CRC" is the content of the GOOSEOUT control block for calculating the bus differential protection. This item has not changed, indicating that the GOOSE information sent by the bus differential has not changed. The second to Nth rows in the table are the names of the IED devices connected to the bus differential and their process layer configuration CRC codes, which are used to calculate the GOCB control block data and the SMVCB control block data. This item has not changed, indicating that the key configuration information between the bus differential and the IED has not changed, and normal communication does not affect the protection function, and there is no need to debug the configuration of the bus and the interval; this item has changed, indicating that the configuration of the IED and bus protection communication has changed, and therefore needs to be verified through debugging. For IED devices with inconsistent CRCs, click "View" to view where the specific differences occur.

[0160] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. These changes involve related technologies well known to those skilled in the art, which all fall within the scope of protection of the patent of the present invention.

[0161] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. Intelligent substation reconstruction and expansion configuration file verification system, characterized by: include: SCD visual display unit, showing the IED device list and classifying the device types; The SCD comparison unit obtains the SCD file of the substation configuration file before the reconstruction and expansion and the SCD file of the substation configuration file after the reconstruction and expansion for comparison at the station control layer; The CCD comparison unit obtains the CCD file of the mother difference configuration file before the reconstruction and expansion and the CCD file of the mother difference configuration file after the reconstruction and expansion for process layer comparison; Report query and system help unit, query reports and provide operation guides and software version upgrades.

2. The intelligent substation reconstruction and expansion configuration file verification system according to claim 1 is characterized in that: The SCD visualization display unit realizes visualization display through the substation management module, and the substation management module includes creating a substation, deleting a substation, importing the SCD before reconstruction and expansion, importing the SCD after reconstruction and expansion, and resetting the SCD file.

3. The intelligent substation reconstruction and expansion configuration file verification system according to claim 2 is characterized in that: The SCD comparison unit is implemented through the station control layer comparison module, which includes a modification and expansion equipment change table, an equipment change association table, an input virtual terminal table, an output virtual terminal table, an analog input virtual terminal table, an analog output virtual terminal table, a communication configuration information table, and a saved comparison report.

4. The intelligent substation reconstruction and expansion configuration file verification system according to claim 3 is characterized in that: The CCD comparison unit is implemented through a mother difference modification and expansion module and a process layer comparison module. The mother difference modification and expansion module includes return, online acquisition before modification and expansion, online acquisition after modification and expansion, offline acquisition before modification and expansion, offline acquisition after modification and expansion, resetting process layer configuration, and saving. The CCD comparison unit imports the CCD files before and after modification and expansion respectively through the mother difference modification and expansion module, and then obtains the CCD comparison report through the process layer comparison module.

5. The intelligent substation reconstruction and expansion configuration file verification system according to any one of claims 1 to 4, characterized in that: The SCD display creates a substation through the substation management module, determines the voltage level and the substation name, imports the SCD before the renovation and expansion and the SCD after the renovation and expansion from the smart substation background configuration network port, and forms an SCD list after the import is completed. The SCD list includes the serial number, substation name, voltage level, SCD before the renovation and expansion, SCD after the renovation and expansion, and SCD comparison report. Click the visualization button to view the visualized SCD list. The visualized SCD list displays the IED device list, device association table, input virtual terminal table, output virtual terminal table, analog input virtual terminal table, analog output virtual terminal table, communication configuration information table, and input table export. The visualized SCD list includes the SCD list before the renovation and expansion and the SCD list after the renovation and expansion.

6. The intelligent substation reconstruction and expansion configuration file verification system according to claim 5 is characterized in that: The SCD comparison shows the association relationship between IED devices through a single device logical link diagram.

7. The intelligent substation reconstruction and expansion configuration file verification system according to claim 6 is characterized in that: The comparison content of the SCD comparison unit includes the increase and decrease of IEDs, the increase and deletion of SV control blocks, SV control block parameters, the increase and deletion of GOOSE control blocks, GOOSE control block parameters, changes in the number and sequence numbers of data set entries, parameters of data set entries, changes in the number of received information, increases and decreases in external references and changes in entry sequence numbers, and external reference addresses.

8. The intelligent substation reconstruction and expansion configuration file verification system according to claim 7 is characterized in that: The CCD comparison report includes serial number, original IEDName, current IEDName, IED description, model, CRC before modification and expansion, CRC after modification and expansion, result, and operation. The comparison result is generated by comparing whether the CRC before modification and expansion is consistent with the CRC after modification and expansion.

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