SCD management and control man-machine interaction method and system based on regulation and control cloud platform

Abstract

The invention relates to the technical field of SCD management and control interaction, and discloses an SCD management and control man-machine interaction method and system based on a regulation and control cloud platform, the system comprises a data acquisition unit, a data processing unit, a data analysis unit, an interface interaction unit and a data storage unit, the data acquisition and processing unit comprehensively collects and analyzes an SCD file and related data, and it is ensured that the data is complete and available; the data analysis unit is outstanding in capability, a hash value algorithm accurately checks file consistency, a unique version number is combined with a database table to clearly record version change, an LCS algorithm is clear in configuration difference, the equipment state is monitored in real time based on a threshold algorithm, and an alarm is given in time when abnormity occurs. A human-computer interaction interface is friendly, information is displayed in various visual modes, a convenient operation entry is provided, and the operation and maintenance efficiency is greatly improved. On the whole, the system comprehensively improves the SCD file management and operation and maintenance level of the intelligent substation, and the stable operation of the substation is powerfully guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of SCD management and control interaction, and particularly relates to an SCD management and control human-computer interaction method and system based on a regulation and control cloud platform. BACKGROUND

[0002] Traditional SCD file management methods are relatively dispersed, and SCD files generated by different devices and systems have numerous versions and complex sources, lacking effective unified management mechanisms. This makes it difficult to ensure consistency between SCD files of different versions or sources, and configuration inconsistencies may easily occur, thereby affecting the stable operation of the substation. For example, when a substation is expanded or devices are updated, compatibility problems of new and old SCD files may cause communication failures or device malfunctions. For version management of SCD files, there is a lack of systematic recording and tracing means in the past. It is difficult for operation and maintenance personnel to quickly and accurately understand information such as the change history, change content, and change time of SCD files, which increases the difficulty in troubleshooting and configuration optimization. Moreover, in terms of configuration change analysis of SCD files, traditional methods are difficult to clearly present specific differences in configuration between different versions, which is not conducive for operation and maintenance personnel to timely grasp the change situation of devices and parameters.

[0003] Meanwhile, in terms of device operation state monitoring, with the increase in the number of devices and the complication of functions in intelligent substations, it is impossible to meet the demand by simply relying on manual experience and simple monitoring means. An effective method is needed that can accurately analyze the operation state of devices in real time and timely alarm when an exception occurs.

[0004] In addition, the existing SCD file management system human-computer interaction interface is not user-friendly, and operation and maintenance personnel are inconvenient when viewing SCD file information, device operation states, and analysis results, and lack convenient query, modification, and audit operation functions, which affects the efficiency and quality of operation and maintenance work. Moreover, in terms of data storage, a single database storage method cannot meet the storage needs of diversified data in intelligent substations, and the storage and management efficiency of data needs to be improved.

[0005] In summary, in order to improve the management level and operation and maintenance efficiency of SCD files in intelligent substations and ensure the safe and stable operation of substations, an SCD management and control human-computer interaction system based on a regulation and control cloud platform is urgently needed. SUMMARY

[0006] The present application aims to provide an SCD management and control human-computer interaction method and system based on a regulation and control cloud platform, which solves the technical problems proposed in the background art.

[0007] The object of the present application can be achieved by the following technical solutions:

[0008] The SCD management and human-computer interaction system based on the regulation cloud platform comprises:

[0009] A data acquisition unit is configured to acquire SCD files and related real-time operation data from various devices and systems of the smart substation, including device state parameters, communication messages, and alarm information.

[0010] A data processing unit is configured to perform file analysis processing on the SCD files acquired by the data acquisition unit and extract key information therefrom.

[0011] A data analysis unit is configured to perform consistency checking, version management, configuration change analysis, and device operation state analysis on the SCD file information and real-time operation data after file analysis processing.

[0012] The consistency checking is to check the consistency between SCD files of different versions or different sources.

[0013] The version management is to manage the versions of the SCD files, record the change history, change content, and information corresponding to the change time.

[0014] The configuration change analysis is to analyze the configuration change situation of the SCD files between different versions, including newly added, deleted, and modified devices and parameters.

[0015] The device operation state analysis is to analyze the operation state of the device based on the acquired real-time operation data of the device and generate a corresponding state report and alarm information according to the operation state of the device.

[0016] An interface interaction unit is configured to provide a human-computer interaction interface, allowing operation and maintenance personnel to view SCD file information, device operation state, analysis results, and perform query, modification, and review operations.

[0017] A data storage unit is configured to store acquired raw data, preprocessed data, analyzed SCD file information, and data analysis results.

[0018] As a further scheme of the present application, the key information includes device models, communication configurations, and virtual terminal connections.

[0019] As a further scheme of the present application, the file analysis processing mode is as follows:

[0020] An XML parser is used to analyze the SCD files, traverse the XML tree structure, identify and extract information of each node, and then store the extracted key information according to a predefined data structure.

[0021] As a further scheme of the present application, the SCD file consistency checking mode is as follows:

[0022] First, a consistency checking algorithm based on hash value is adopted to calculate the hash value of each SCD file;

[0023] Then, the hash values of different SCD files are compared to determine whether each SCD file is consistent;

[0024] If the hash values of two SCD files are the same, it is considered that the two SCD files are consistent; otherwise, it is considered that the two SCD files have differences.

[0025] As a further scheme of the present application, the SCD file version management mode is as follows:

[0026] First, a unique version number is assigned to each SCD file version;

[0027] Among them, the version number is composed of a timestamp and an incremental serial number, specifically: version number = timestamp + serial number, and the timestamp is accurate to seconds, and the serial number starts from 1 and increases;

[0028] At the same time, the version change information is stored in the pre-set version management database table, and the table structure of the version management database table includes the fields corresponding to the version number, change time, change content and change personnel.

[0029] As a further scheme of the present application, the SCD file configuration change analysis mode is as follows:

[0030] The configuration information of different versions of SCD files is compared using the LCS algorithm to determine the difference part;

[0031] The basic formula of the LCS algorithm is as follows:

[0032]

[0033] Among them, the basic formula of the LCS algorithm is used to calculate the length of the longest common subsequence of the two SCD file configuration information corresponding strings;

[0034] The length of the longest common subsequence refers to the length of the longest one of the common subsequences of two or more sequences;

[0035] In the formula, S1 i and S2 j respectively represent the SCD file configuration information strings of two versions, and i and j are the lengths of the SCD file configuration information strings S1 i and S2 j of two versions.

[0036] As a further scheme of the present application, the device running state analysis mode is as follows:

[0037] Adopt a threshold-based state analysis algorithm;

[0038] Extract the normal operation threshold interval preset according to the key operation parameters of each device;

[0039] Compare the key operation parameters of each device with its corresponding normal operation threshold interval:

[0040] When the key operation parameters are within the normal operation threshold interval, it is determined that the operation state of the corresponding device is normal;

[0041] When the key operation parameters are not within the normal operation threshold interval, it is determined that the operation state of the corresponding device is abnormal, and an alarm information is generated and sent to the interface interaction unit for display.

[0042] As a further scheme of the application: the man-machine interface provided by the interface interaction unit is specifically as follows:

[0043] StepM1, SCD file information display:

[0044] The device model, communication configuration, and virtual terminal connection information of the SCD file are displayed in a tree structure and table form, and the operator can view the detailed content by clicking and expanding operation;

[0045] StepM2, device operation state monitoring:

[0046] The operation state parameters of the device are displayed in real time through the instrument panel and chart visualization method;

[0047] StepM3, data analysis result presentation:

[0048] The SCD file consistency check result, version management information, and configuration change analysis result are displayed to the operator in the form of report and chart;

[0049] StepM4, operation interface:

[0050] Query, modification, and review operation buttons and input boxes are provided, and the operator can initiate operation request for the SCD file through the man-machine interface.

[0051] As a further scheme of the application: the storage mode of the data storage unit is to store in a combination of relational database and non-relational database.

[0052] The SCD control man-machine interaction method based on the control cloud platform, which is realized through the SCD control man-machine interaction system based on the control cloud platform, comprises the following steps:

[0053] First step, data acquisition:

[0054] Collect SCD files and related real-time operation data from various devices and systems of the intelligent substation;

[0055] Second step, data processing:

[0056] The SCD files collected by the data acquisition unit are subjected to file analysis processing, and the key information therein is extracted;

[0057] Third step, data analysis:

[0058] The SCD file information and real-time operation data after file analysis processing are subjected to SCD file consistency check, version management, configuration change analysis and device operation state analysis;

[0059] Fourth step, interface interaction:

[0060] A man-machine interface is provided to enable the operation and maintenance personnel to view the SCD file information, device operation state, analysis result, and perform query, modification, review operation;

[0061] Fifth step, data storage:

[0062] The collected original data, pre-processed data, analyzed SCD file information and data analysis result are stored.

[0063] Compared with the prior art, the beneficial effects are:

[0064] (1) The data acquisition unit of the present application can comprehensively collect SCD files and real-time operation data in various devices and systems of the intelligent substation, the data processing unit can analyze and store the key information of the SCD files by means of the XML parser, which lays a solid foundation for the subsequent work and ensures the completeness and usability of the data.

[0065] (2) The present application can quickly and accurately determine the consistency of the SCD files based on the hash value algorithm, and timely find the differences between different versions or source files, which ensures the accuracy of the substation configuration file and reduces the risk caused by inconsistent files.

[0066] (3) The unique version number generation method combined with the detailed version management database table of the present application facilitates the operation and maintenance personnel to quickly trace the change history of the SCD files, and clearly shows the change content and time, which is helpful for efficient configuration management and fault troubleshooting.

[0067] (4) The present application uses the LCS algorithm to clearly present the changes of different versions of SCD file configuration, so that the operation and maintenance personnel can clearly see the newly added, deleted or modified devices and parameters, and better control the configuration change situation.

[0068] (5) The present invention uses a threshold-based algorithm to determine the status of the device in real time based on the key operating parameters of the device. Once an abnormality occurs, an alarm is issued in time to help operation and maintenance personnel respond quickly and ensure the stable operation of the equipment.

[0069] (6) The human-computer interaction interface of the present invention is reasonably designed. It displays SCD file information through a tree structure and a table, and uses a dashboard and charts to visualize the equipment operation status and analysis results. At the same time, it provides operation buttons and input boxes, which greatly facilitates the operation of operation and maintenance personnel and improves the efficiency and quality of operation and maintenance work.

[0070] (7) The present invention adopts a storage method that combines relational databases with non-relational databases, which can store data according to the characteristics of different types of data, improve the efficiency of data storage and management, and meet the system's storage needs for diversified data. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 This is a system block diagram of the SCD control human-computer interaction system based on the control cloud platform of the present invention;

[0072] Figure 2 It is a flow chart of the SCD control human-computer interaction method based on the control cloud platform of the present invention. DETAILED DESCRIPTION

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0074] Example 1

[0075] See also Figure 1 and Figure 2 As shown, the present invention is an SCD control human-computer interaction system based on a control cloud platform, including:

[0076] Data acquisition unit, used to collect SCD files and related real-time operation data from various devices and systems in the smart substation, including but not limited to device status parameters, communication messages, alarm information, etc.;

[0077] In this embodiment, the data acquisition unit establishes a connection with the intelligent electronic devices, monitoring system, etc. in the substation through a preset communication interface and protocol, such as IEC61850, obtains data regularly or in real time, and transmits the collected data to the data processing unit;

[0078] The intelligent electronic device includes, but is not limited to, transformer intelligent terminal, circuit breaker intelligent terminal, merging unit, protection device, etc.

[0079] The data processing unit is used for file analysis processing on the SCD file collected by the data acquisition unit, and key information in the SCD file is extracted;

[0080] In this embodiment, the key information includes device model, communication configuration, virtual terminal connection, etc., and is stored as structured data, facilitating subsequent query, analysis and display;

[0081] The file analysis processing mode is as follows:

[0082] The SCD file is analyzed by using an XML parser, the XML tree structure is traversed, and the information of each node is identified and extracted, which adopts a combination of depth-first traversal and breadth-first traversal, and the mode is as follows:

[0083] Firstly, the key nodes in the SCD file are quickly positioned by depth-first traversal, such as <ied>, <Data TypeTemplates>, <communication>The equal nodes are obtained, and the overall information and hierarchy of the nodes are acquired.

[0084] Then, for each key node, the breadth-first traversal is adopted to analyze the child nodes and attribute information under the key node in detail; for example, in the analysis of the key node "http: / / www.163.com", the child nodes and attribute information under the key node are analyzed in detail. <ied>Node, traverse the nodes below it in turn<Access Point> 、 <server> 、 <ln>Get the name, type, description, and other attribute information of each child node;

[0085] The XML parser uses Beautiful Soup, which is prior art and will not be described here;

[0086] In this embodiment, for example, for device model information, the device name, type, manufacturer, and other information are obtained by traversing the intelligent electronic device node and its child nodes;

[0087] The extracted key information is stored according to a predefined data structure;

[0088] In this embodiment, for example, a database table is used to store device model information, and the table structure includes device ID, device name, device type, manufacturer, and other fields;

[0089] The data analysis unit is configured to comprehensively analyze the SCD file information and real-time operation data after file parsing processing, including SCD file consistency checking, version management, configuration change analysis, and device operation state analysis, to provide decision support for operation and maintenance personnel.

[0090] The comprehensive analysis method is as follows:

[0091] Step K1, SCD file consistency checking:

[0092] Check the consistency between SCD files of different versions or different sources to ensure the accuracy and reliability of the substation configuration, and the specific method is as follows:

[0093] First, a consistency checking algorithm based on hash values is used to calculate the hash values of each SCD file;

[0094] Then, the hash values of different SCD files are compared to determine whether the SCD files are consistent;

[0095] If the hash values of two SCD files are the same, it is considered that the two SCD files are consistent; otherwise, it is considered that the two SCD files have differences;

[0096] Step K2, SCD file version management:

[0097] The version of the SCD file is managed, and the version change history, change content, and information corresponding to the change time are recorded for easy tracing and management, and the specific method is as follows:

[0098] First, a unique version number is assigned to each SCD file version;

[0099] The version number is composed of a timestamp and an incremental serial number, specifically: version number = timestamp + serial number, and the timestamp is accurate to seconds, and the serial number is incremented from 1;

[0100] Meanwhile, the version change information is stored in a pre-set version management database table, and the table structure of the version management database table includes fields corresponding to the version number, change time, change content, and change personnel;

[0101] Step K3, SCD file configuration change analysis:

[0102] The configuration change situation of the SCD file between different versions is analyzed, including the newly added, deleted and modified devices and parameters, to help the operation and maintenance personnel understand the change trend and influence range of the substation configuration, and the specific method is as follows:

[0103] The configuration information of different versions of SCD files is compared by using the LCS algorithm to determine the difference part;

[0104] The basic formula of the LCS algorithm is as follows:

[0105]

[0106] The basic formula of the LCS algorithm is used to calculate the length of the longest common subsequence of the two SCD file configuration information corresponding strings;

[0107] The length of the longest common subsequence refers to the length of the longest one of the common subsequences of two or more sequences;

[0108] In the formula, S1 i and S2 j respectively represent the SCD file configuration information strings of two versions, and i and j are the lengths of the SCD file configuration information strings S1 i and S2 j of two versions respectively;

[0109] This embodiment determines the specific content of the configuration change by analyzing the longest common subsequence and the difference part;

[0110] Step K4, device running state analysis:

[0111] Based on the collected device real-time running data, the running state of the device is analyzed, and the corresponding state report and alarm information are generated according to the running state of the device;

[0112] The running state of the device refers to whether the device is normally running;

[0113] In this embodiment, the device real-time running data includes voltage, current, power, frequency, temperature, pressure and other key indicators;

[0114] In this way:

[0115] A threshold-based state analysis algorithm is adopted;

[0116] The normal operation threshold interval preset according to the key operation parameter of each device is extracted;

[0117] The key operation parameter of each device is compared with the corresponding normal operation threshold interval:

[0118] When the key operation parameter is within the normal operation threshold interval, it is determined that the operation state of the corresponding device is normal;

[0119] When the key operation parameter is not within the normal operation threshold interval, it is determined that the operation state of the corresponding device is abnormal, and an alarm information is generated.

[0120] In this embodiment, the data acquisition unit can widely collect SCD files and related real-time operation data from various devices and systems of the intelligent substation, covering device state parameters, communication messages, alarm information, etc., and establish a connection with various intelligent electronic devices and monitoring systems through a pre-set communication interface and protocol, ensuring the diversity and integrity of the data source; The data processing unit uses an XML parser combined with depth-first traversal and breadth-first traversal to efficiently parse the SCD file, accurately extract key information such as device model, communication configuration, virtual terminal connection, etc., and store it as structured data, facilitating subsequent query, analysis and display; The data analysis unit comprehensively analyzes the parsed SCD file information and real-time operation data, including SCD file consistency check, version management, configuration change analysis and device operation state analysis, etc., provides decision support for operation and maintenance personnel through scientific algorithms, ensures the accuracy and reliability of the substation configuration, and can also timely discover device operation abnormality.

[0121] Embodiment Two

[0122] Referring to Figure 1 and Figure 2 As embodiment two of the present application, compared with embodiment one, the technical solution of this embodiment is only different from embodiment one in that in this embodiment, it further includes:

[0123] An interface interaction unit is used to provide an intuitive and convenient man-machine interaction interface, so that operation and maintenance personnel can conveniently view SCD file information, device operation state, analysis results, etc., and perform related operations such as query, modification, review, etc.;

[0124] Specifically as follows:

[0125] Step M1, SCD file information display:

[0126] The device model, communication configuration, virtual terminal connection and other information of the SCD file are displayed in the form of a tree structure, a table and the like, and the operation and maintenance personnel can view the detailed content by clicking, expanding and the like;

[0127] Step M2, device running state monitoring:

[0128] The running state parameters of the device, such as voltage, current, temperature and the like, are displayed in real time through a dashboard, a chart and the like, and the running state of the device is identified by different colors or icons according to the device state analysis result;

[0129] Step M3, data analysis result presentation:

[0130] The SCD file consistency check result, version management information, configuration change analysis result and the like are displayed in the form of a report, a chart and the like to the operation and maintenance personnel, so as to facilitate them to quickly understand the change situation and potential problems of the substation configuration;

[0131] Step M4, operation interface:

[0132] The query, modification, audit and the like operation buttons and input boxes are provided, and the operation and maintenance personnel can initiate the operation request of the SCD file through the man-machine interface, such as querying the configuration information of a specific device, modifying the device parameters, auditing the configuration change and the like; the operation request will be sent to the data processing unit for processing, and the processing result will be fed back to the man-machine interface unit for display.

[0133] The interface interaction unit added in the embodiment provides an intuitive and convenient man-machine interface. The SCD file information, device running state and data analysis result are displayed in various forms, which facilitates the operation and maintenance personnel to view; at the same time, the operation buttons and input boxes are provided, which facilitates the operation and maintenance personnel to perform the query, modification, audit and the like operation, greatly improving the convenience of the operation and maintenance personnel to obtain information and operation.

[0134] Embodiment three

[0135] Please refer to Figure 1 and Figure 2 As the embodiment three of the application, compared with the embodiment one and the embodiment two, the technical scheme of the embodiment is to combine the schemes of the embodiment one and the embodiment two, and the difference between the technical scheme of the embodiment and the embodiment one and the embodiment two is that the embodiment further comprises:

[0136] A data storage unit is configured to store the collected raw data, the preprocessed data, the parsed SCD file information, the data analysis result and the log information in the system running process, so as to provide support for the running of the system and the persistence of the data.

[0137] The data storage unit is stored in a combination of a relational database and a non-relational database;

[0138] For structured data such as device model information and version management information, the relational database is used for storage;

[0139] For unstructured data such as original communication messages and logs, the non-relational database is used for storage to improve the efficiency of data storage and query.

[0140] In this embodiment, the data storage unit is introduced, and the combination of the relational database and the non-relational database is used for storage. The structured data is stored in the relational database, and the unstructured data is stored in the non-relational database. This method improves the efficiency of data storage and query, and provides strong support for system operation and data persistence.

[0141] Embodiment Four

[0142] As shown in Figure 1 and Figure 2 , as an embodiment of the present application, compared with embodiments one, two and three, the technical solution of this embodiment is to combine the above-mentioned embodiments one, two, three and four.

[0143] This embodiment combines the solutions of the previous three embodiments and fully utilizes the advantages of each embodiment. From data acquisition, processing, analysis and interaction to storage, a complete, efficient and optimized SCD control and human-computer interaction system based on the control cloud platform is formed, and the performance and practicality of the system are improved.

[0144] As shown in Figure 1 and Figure 2 , the present application also provides a SCD control and human-computer interaction method based on the control cloud platform. The method is realized by the SCD control and human-computer interaction system based on the control cloud platform. The method comprises the following steps:

[0145] First step, data acquisition:

[0146] SCD files and related real-time operation data are collected from various devices and systems of the intelligent substation;

[0147] Second step, data processing:

[0148] The SCD files collected by the data acquisition unit are processed by file analysis, and the key information is extracted;

[0149] Third step, data analysis:

[0150] The SCD file information and real-time running data after file analysis processing are subjected to consistency check, version management, configuration change analysis and device running state analysis of the SCD file;

[0151] The fourth step is interface interaction:

[0152] A man-machine interaction interface is provided to enable the operation and maintenance personnel to view the SCD file information, device running state, analysis result, and perform query, modification and review operation;

[0153] The fifth step is data storage:

[0154] The collected original data, pre-processed data, analyzed SCD file information and data analysis result are stored.

[0155] The above formulas are dimensionless values calculated, the formulas are obtained by collecting a large amount of data to simulate the most recent real situation, and the preset parameters and threshold values in the formulas are set by the person skilled in the art according to the actual situation.

[0156] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.< / ln> < / server> < / ied> < / communication> < / ied>

Claims

1. The SCD control human-computer interaction system based on the control cloud platform is characterized by: include: The data acquisition unit is used to collect SCD files and related real-time operating data from various devices and systems in the smart substation, including device status parameters, communication messages, and alarm information; The data processing unit is used to parse the SCD file collected by the data collection unit and extract key information therein; The data analysis unit is used to perform SCD file consistency check, version management, configuration change analysis, and device operation status analysis on the SCD file information and real-time operation data after file parsing. The consistency check is to check the consistency between SCD files of different versions or different sources. The version management is to manage the versions of SCD files and record the version change history, change content, and change time. The configuration change analysis is to analyze the configuration changes between different versions of SCD files. The configuration changes include the addition, deletion, and modification of devices and parameters. The device operation status analysis is to analyze the device operation status based on the collected real-time device operation data, and generate corresponding status reports and alarm information according to the device operation status. The interface interaction unit is used to provide a human-computer interaction interface, allowing operation and maintenance personnel to view SCD file information, equipment operation status, analysis results, and perform query, modification, and review operations; The data storage unit is used to store the collected raw data, pre-processed data, parsed SCD file information, and data analysis results.

2. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: File parsing is handled as follows: The SCD file is parsed using an XML parser, the XML tree structure is traversed, the information of each node is identified and extracted, and the extracted key information is stored according to a predefined data structure.

3. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: The SCD file consistency check method is as follows: First, a hash value-based consistency check algorithm is used to calculate the hash value of each SCD file; Then, the hash values ​​of different SCD files are compared to determine whether the SCD files are consistent. If the hash values ​​of the two SCD files are the same, the two SCD files are considered to be consistent; otherwise, the two SCD files are considered to be different.

4. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: SCD file version management is as follows: First, assign a unique version number to each SCD file version; At the same time, the version change information is stored in a preset version management database table.

5. The SCD control human-computer interaction system based on the control cloud platform according to claim 4 is characterized in that: The version number consists of a timestamp and an incremental serial number. Specifically, the version number = timestamp + serial number. The timestamp is accurate to the second, and the serial number starts at 1 and increases incrementally. The table structure of the version management database table includes fields corresponding to version number, change time, change content, and change personnel.

6. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: The SCD file configuration change analysis method is as follows: Use the LCS algorithm to compare the configuration information of different versions of SCD files and determine the differences; The basic formula of the LCS algorithm is as follows: The basic formula of the LCS algorithm is used to calculate the longest common subsequence length of the corresponding strings of the configuration information of two SCD files; The longest common subsequence length refers to the length of the longest subsequence among the subsequences shared by two or more sequences; Where S1 i and S2 j Respectively represent the two versions of the SCD file configuration information string, i and j are the two versions of the SCD file configuration information string S1 i and S2 j length.

7. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: The device operating status analysis method is as follows: Adopting threshold-based state analysis algorithm; Extract the normal operating threshold intervals pre-set based on the key operating parameters of each device; Compare the key operating parameters of each device with their corresponding normal operating threshold ranges: When the key operating parameters are within the normal operating threshold range, the operating status of the corresponding equipment is determined to be normal; When the key operating parameters are not within the normal operating threshold range, the operating status of the corresponding equipment is determined to be abnormal, and an alarm message is generated and sent to the interface interaction unit for display.

8. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: The human-computer interaction interface provided by the interface interaction unit is as follows: Step M1, SCD file information display: The device model, communication configuration, and virtual terminal connection information of the SCD file are displayed in a tree structure and table format, allowing operation and maintenance personnel to view detailed content by clicking and expanding. Step M2, equipment operation status monitoring: Display the equipment's operating status parameters in real time through dashboards and chart visualization; Step M3: Data analysis results presentation: Present SCD file consistency check results, version management information, and configuration change analysis results to operations and maintenance personnel in the form of reports and charts; Step M4, Operation interface: Provides query, modification, and review corresponding operation buttons and input boxes, and operation and maintenance personnel initiate operation requests for SCD files through the human-computer interaction interface.

9. The SCD control human-computer interaction system based on the control cloud platform according to claim 1 is characterized in that: The data storage unit is stored in a manner that combines a relational database and a non-relational database.

10. The SCD control human-computer interaction method of the SCD control human-computer interaction system based on the control cloud platform according to any one of claims 1 to 9, characterized in that: The SCD human-computer interaction control method includes the following steps: Step 1: Data Collection: Collect SCD files and related real-time operation data from various devices and systems in smart substations; Step 2: Data processing: Parse the SCD files collected by the data acquisition unit and extract key information; Step 3: Data Analysis Perform SCD file consistency check, version management, configuration change analysis, and device operation status analysis on the SCD file information and real-time operation data after file parsing; Step 4: Interface interaction: Provides a human-computer interaction interface, allowing operation and maintenance personnel to view SCD file information, equipment operating status, analysis results, and perform query, modification, and review operations; Step 5: Data storage: Stores collected raw data, pre-processed data, parsed SCD file information, and data analysis results.

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