A distribution network protection device on-site general operation and maintenance system and a working method thereof

Abstract

This invention proposes a local universal operation and maintenance system for distribution network protection devices and its operating method. The invention includes: the self-describing information comprising operation and maintenance tools and distribution network protection self-describing files; the transmission directory for the operation and maintenance tools and distribution network protection self-describing files is Para; the transmission name for the operation and maintenance tools and distribution network protection self-describing files is Para.inf. The invention also includes a dynamic parameter mapping engine, an intelligent version identification mechanism, and a multi-dimensional compatibility evaluation system. Based on the communication protocols widely used by distribution network protection manufacturers, this invention extends the system to transmit the self-describing information of distribution network protection parameters to the operation and maintenance software in file format, achieving compatibility of one operation and maintenance software with multiple manufacturers' distribution network protection devices and mutual compatibility between operation and maintenance software from different manufacturers; reducing on-site operation and maintenance workload, lowering operation and maintenance costs, and improving operation and maintenance efficiency.

Description

Technical Field

[0001] This invention proposes a local universal operation and maintenance system for distribution network protection devices and its working method, which relates to the field of distribution automation technology. Background Technology

[0002] Currently, there are numerous distribution network protection manufacturers. During on-site operation and maintenance of distribution network protection systems, the different maintenance software and communication protocols used by various manufacturers result in maintenance personnel having access to dozens of different software versions. Improper use of these software versions can lead to maintenance failures or even serious accidents such as switch malfunctions caused by incorrect parameter configurations. Currently, domestic power companies use the protocols DL / T634.5101 and DL / T634.5104 in their distribution network protection equipment. These two industry standards define rules for file transfer and parameter viewing and modification, but lack rules for transmitting self-describing parameter information. To address these issues and achieve unified operation and maintenance of distribution network protection systems from different manufacturers, a self-describing operation and maintenance method for distribution network protection was developed in accordance with the State Grid Corporation's protocol details. Summary of the Invention

[0003] In view of this, and to fill the gaps and deficiencies in the existing technology, this invention proposes a local universal operation and maintenance system for distribution network protection devices and its working method. This invention transmits the self-describing information of distribution network protection parameters to the operation and maintenance software in file format, achieving compatibility between one operation and maintenance software and distribution network protection devices from multiple manufacturers, or between operation and maintenance software from different manufacturers.

[0004] This invention proposes a local universal operation and maintenance system for distribution network protection devices, characterized in that it uses a file transfer-based method to transmit self-describing information of distribution network protection;

[0005] The self-describing information includes operation and maintenance tools and distribution network protection self-describing files;

[0006] The transmission directory for operation and maintenance tools and distribution network protection self-description files is Para;

[0007] The operation and maintenance tools and the self-description file for distribution network protection are transmitted with the name Para.inf;

[0008] The local universal operation and maintenance system for distribution network protection devices also includes a dynamic parameter mapping engine, an intelligent version identification mechanism, and a multi-dimensional compatibility evaluation system.

[0009] Furthermore, the operation and maintenance tool and the distribution network protection self-description file transmission file contain two parts: the first part is the file description of the parameters, and the second part is the information body address of the parameters. The Chinese character encoding format adopts UTF-8 format.

[0010] Furthermore, the dynamic parameter mapping engine includes the following:

[0011] The dynamic parameter mapping engine achieves automatic parameter identification and mapping conversion by defining a standardized parameter description format in the Para.inf file; the dynamic parameter mapping engine consists of four core modules:

[0012] Automatic parameter address parsing module: Automatically parses parameter address information in the Para.inf file without manual configuration;

[0013] Intelligent parameter type identification module: Automatically identifies parameter types based on parameter self-description information, including protection settings, pressure plate activation / deactivation status, and device time parameters;

[0014] Parameter value range dynamic verification module: dynamically determines the valid range of parameter values ​​based on parameter type, and automatically alarms when values ​​exceed the range;

[0015] Parameter mapping relationship generation module: Automatically generates cross-vendor parameter mapping relationship table based on the parsing results.

[0016] Furthermore, the intelligent version identification mechanism includes the following:

[0017] The intelligent version identification mechanism can automatically identify the model, firmware version, and protocol implementation method of the distribution network protection device, and automatically adjust the parameter parsing strategy based on the version information; the intelligent version identification mechanism includes:

[0018] Automatic device model identification module: Automatically identifies the model of distribution network protection device by analyzing the structure and content characteristics of the Para.inf file;

[0019] Firmware version compatibility analysis module: Compares the parameter differences between the current version and historical versions to evaluate version compatibility;

[0020] Specification Implementation Difference Detection Module: Detects differences in specification implementations from different vendors and provides adaptation strategies;

[0021] Upgrade path recommendation module: Based on version compatibility analysis results, recommends the optimal upgrade path.

[0022] Furthermore, the aforementioned multi-dimensional compatibility assessment system includes the following:

[0023] A multi-dimensional compatibility assessment system conducts a comprehensive risk assessment before parameter modifications, effectively preventing security incidents caused by incorrect parameter configurations. This system includes:

[0024] Parameter integrity verification module: checks whether the parameter file is complete and whether there are any missing key parameters;

[0025] Specification consistency verification module: Verifies whether the parameter configuration conforms to industry specification requirements;

[0026] Address mapping conflict detection module: Detects whether there are conflicts in parameter addresses to avoid address mapping errors;

[0027] Security Risk Assessment Module: Assess the security risks that may be caused by incorrect parameter configuration, and issue alerts or block high-risk operations.

[0028] According to a second aspect of the present invention, the present invention provides a method for operating a local universal operation and maintenance system for distribution network protection devices, used to execute a local universal operation and maintenance system for distribution network protection devices as described in any one of the present invention, characterized in that the method for operating the local universal operation and maintenance system for distribution network protection devices includes the following:

[0029] Step S1: The distribution network protection device and maintenance tools establish a connection using a dedicated protocol;

[0030] Step S2: The operation and maintenance tool issues the Para directory name to the distribution network protection according to the file transfer method in the dedicated protocol;

[0031] Step S3: The distribution network protection device uploads the file information in the Para directory to the operation and maintenance tool according to the file transfer method of the dedicated protocol. The information includes the Para.inf file name, file size and file generation time.

[0032] Step S4: The operation and maintenance tool issues a command to retrieve the configuration file Para.inf using the file transfer method specified in the dedicated protocol;

[0033] Step S5: The distribution network protection device transmits the contents of the parameter file Para.inf to the operation and maintenance tool using a dedicated protocol in the form of data frames;

[0034] Step S6: The operation and maintenance tool parses the contents of the Para.inf file sent by the distribution network protection device; it maps the parameter self-description information to the parameter information address; the contents of the Para.inf file are one line per parameter element, and each line contains the parameter address and the parameter self-description information, with the parameter address and self-description information separated by an English comma; at the same time, the operation and maintenance tool starts the dynamic parameter mapping engine to intelligently process the parsed parameters;

[0035] Step S7: The operation and maintenance tools use the parameter viewing and modification rules of the dedicated specifications to view or modify the parameters; before modifying the parameters, a multi-dimensional compatibility assessment system is launched to conduct a security assessment of the parameter configuration;

[0036] Step S8: After the operation and maintenance debugging is completed, the operation and maintenance tool generates an operation and maintenance report, recording the parameter modification history and compatibility assessment results.

[0037] Furthermore, when implementing a local general operation and maintenance system for distribution network protection devices, the file descriptions of parameters and the information body addresses of parameters included in the transmission of the operation and maintenance tools and the distribution network protection self-description file are all transmitted in a data stream manner.

[0038] Furthermore, in the operation method of a local general operation and maintenance system for a distribution network protection device, the dedicated protocol includes the 101 protocol or the 104 protocol.

[0039] The present invention has the following advantages:

[0040] This invention extends the DL / T634.5101 and DL / T634.5104 protocols widely used by distribution network protection manufacturers. It transmits the self-describing information of distribution network protection parameters to the operation and maintenance software in the form of files, so as to realize the compatibility of one operation and maintenance software with distribution network protection from multiple manufacturers and the mutual compatibility of operation and maintenance software between different manufacturers; reduce the workload of on-site operation and maintenance, reduce operation and maintenance costs, and improve operation and maintenance efficiency. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the system of the present invention.

[0042] Figure 2 This is a schematic diagram of the steps of the present invention. Detailed Implementation

[0043] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention; as used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise; furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0046] like Figures 1 to 2 As shown, this invention proposes a local universal operation and maintenance system for distribution network protection devices and its working method, characterized by including the following:

[0047] This invention proposes a local universal operation and maintenance system for distribution network protection devices, characterized in that it uses a file transfer-based method to transmit self-describing information of distribution network protection;

[0048] The self-describing information includes operation and maintenance tools and distribution network protection self-describing files;

[0049] The transmission directory for operation and maintenance tools and distribution network protection self-description files is Para;

[0050] The operation and maintenance tools and the self-description file for distribution network protection are transmitted with the name Para.inf;

[0051] The local universal operation and maintenance system for distribution network protection devices also includes a dynamic parameter mapping engine, an intelligent version identification mechanism, and a multi-dimensional compatibility evaluation system.

[0052] Furthermore, the operation and maintenance tool and the distribution network protection self-description file transmission file contain two parts: the first part is the file description of the parameters, and the second part is the information body address of the parameters. The Chinese character encoding format adopts UTF-8 format.

[0053] Furthermore, the dynamic parameter mapping engine includes the following:

[0054] The dynamic parameter mapping engine achieves automatic parameter identification and mapping conversion by defining a standardized parameter description format in the Para.inf file; the dynamic parameter mapping engine consists of four core modules:

[0055] Automatic parameter address parsing module: Automatically parses parameter address information in the Para.inf file without manual configuration;

[0056] Intelligent parameter type identification module: Automatically identifies parameter types based on parameter self-description information, including protection settings, pressure plate activation / deactivation status, and device time parameters;

[0057] Parameter value range dynamic verification module: dynamically determines the valid range of parameter values ​​based on parameter type, and automatically alarms when values ​​exceed the range;

[0058] Parameter mapping relationship generation module: Automatically generates cross-vendor parameter mapping relationship table based on the parsing results.

[0059] Furthermore, the intelligent version identification mechanism includes the following:

[0060] The intelligent version identification mechanism can automatically identify the model, firmware version, and protocol implementation method of the distribution network protection device, and automatically adjust the parameter parsing strategy based on the version information; the intelligent version identification mechanism includes:

[0061] Automatic device model identification module: Automatically identifies the model of distribution network protection device by analyzing the structure and content characteristics of the Para.inf file;

[0062] Firmware version compatibility analysis module: Compares the parameter differences between the current version and historical versions to evaluate version compatibility;

[0063] Specification Implementation Difference Detection Module: Detects differences in specification implementations from different vendors and provides adaptation strategies;

[0064] Upgrade path recommendation module: Based on version compatibility analysis results, recommends the optimal upgrade path.

[0065] Furthermore, the aforementioned multi-dimensional compatibility assessment system includes the following:

[0066] A multi-dimensional compatibility assessment system conducts a comprehensive risk assessment before parameter modifications, effectively preventing security incidents caused by incorrect parameter configurations. This system includes:

[0067] Parameter integrity verification module: checks whether the parameter file is complete and whether there are any missing key parameters;

[0068] Specification consistency verification module: Verifies whether the parameter configuration conforms to industry specification requirements;

[0069] Address mapping conflict detection module: Detects whether there are conflicts in parameter addresses to avoid address mapping errors;

[0070] Security Risk Assessment Module: Assess the security risks that may be caused by incorrect parameter configuration, and issue alerts or block high-risk operations.

[0071] According to a second aspect of the present invention, the present invention provides a method for operating a local universal operation and maintenance system for distribution network protection devices, used to execute a local universal operation and maintenance system for distribution network protection devices as described in any one of the present invention, characterized in that the method for operating the local universal operation and maintenance system for distribution network protection devices includes the following:

[0072] Step S1: The distribution network protection device and maintenance tools establish a connection using a dedicated protocol;

[0073] Step S2: The operation and maintenance tool issues the Para directory name to the distribution network protection according to the file transfer method in the dedicated protocol;

[0074] Step S3: The distribution network protection device uploads the file information in the Para directory to the operation and maintenance tool according to the file transfer method of the dedicated protocol. The information includes the Para.inf file name, file size and file generation time.

[0075] Step S4: The operation and maintenance tool issues a command to retrieve the configuration file Para.inf using the file transfer method specified in the dedicated protocol;

[0076] Step S5: The distribution network protection device transmits the contents of the parameter file Para.inf to the operation and maintenance tool using a dedicated protocol in the form of data frames;

[0077] Step S6: The operation and maintenance tool parses the contents of the Para.inf file sent by the distribution network protection device; it maps the parameter self-description information to the parameter information address; the contents of the Para.inf file are one line per parameter element, and each line contains the parameter address and the parameter self-description information, with the parameter address and self-description information separated by an English comma; at the same time, the operation and maintenance tool starts the dynamic parameter mapping engine to intelligently process the parsed parameters;

[0078] Step S7: The operation and maintenance tools use the parameter viewing and modification rules of the dedicated specifications to view or modify the parameters; before modifying the parameters, a multi-dimensional compatibility assessment system is launched to conduct a security assessment of the parameter configuration;

[0079] Step S8: After the operation and maintenance debugging is completed, the operation and maintenance tool generates an operation and maintenance report, recording the parameter modification history and compatibility assessment results.

[0080] Furthermore, when implementing a local general operation and maintenance system for distribution network protection devices, the file descriptions of parameters and the information body addresses of parameters included in the transmission of the operation and maintenance tools and the distribution network protection self-description file are all transmitted in a data stream manner.

[0081] Furthermore, when implementing a local general operation and maintenance system for distribution network protection devices, the dedicated protocol includes the 101 protocol or the 104 protocol.

[0082] In addition to the above, the present invention also has related embodiments, including the following:

[0083] In one embodiment of the present invention, the preferred embodiment includes the following steps and contents:

[0084] Step S1: The distribution network protection and maintenance tools establish a connection using the 101 or 104 protocol;

[0085] Step S2: The operation and maintenance tool issues the Para directory name to the distribution network protection according to the file transfer method in the 101 or 104 protocol;

[0086] Step S3: According to the file transfer method of the 101 or 104 protocol, the distribution network protection uploads the file information in the Para directory to the operation and maintenance tool. The information includes the Para.inf file name, file size and file generation time.

[0087] Step S4: The operation and maintenance tool issues a command to retrieve the configuration file Para.inf using the file transfer method in the 101 or 104 protocol;

[0088] Step S5: The distribution network protection transmits the contents of the parameter file Para.inf to the operation and maintenance tool in data frames using the 101 or 104 protocol;

[0089] Step S6: The operation and maintenance tool parses the contents of the Para.inf file sent by the distribution network protection; it maps the parameter self-description information to the parameter address; the Para.inf file content is one line per parameter element, each line begins with "#" as the starting character, and each line contains the parameter address and the parameter self-description information, separated by an English comma. Table 1 below shows an example of a file being called:

[0090] Table 1. Example of an information file

[0091] Information file code illustration #0x8220, Overcurrent Stage I Enable / Disable #0x8221, Overcurrent Stage I Setpoint #0x8223, Overcurrent Stage I Time #0x8224, Overcurrent Stage I via Low-Voltage Blocking #0x8225, Overcurrent Stage I via Directional Blocking...........

[0092] Simultaneously, the operation and maintenance tools activate the dynamic parameter mapping engine to intelligently process the parsed parameters. The dynamic parameter mapping engine first calls the automatic parameter address parsing module to resolve the address information of each parameter line; then it calls the intelligent parameter type identification module to identify the parameter type based on its self-description information; next, it calls the dynamic parameter value range verification module to determine the valid range of the parameters; finally, it calls the parameter mapping relationship generation module to generate a standardized parameter mapping relationship table.

[0093] Step S7: The operation and maintenance tool uses the parameter viewing and modification rules of the 101 or 104 specification to view or modify the parameters. Before modifying the parameters, a multi-dimensional compatibility assessment system is initiated to conduct a security assessment of the parameter configuration. The multi-dimensional compatibility assessment system first calls the parameter integrity verification module to check the integrity of the parameter file; then it calls the specification consistency verification module to verify whether the parameter configuration meets the specification requirements; next, it calls the address mapping conflict detection module to detect whether there are address mapping conflicts; finally, it calls the security risk assessment module to assess the security risks that parameter configuration errors may cause. For high-risk operations, the operation and maintenance tool will pop up an alarm dialog box, requiring the operation and maintenance personnel to confirm or cancel the operation.

[0094] Step S8: After the operation and maintenance debugging is completed, the operation and maintenance tool generates an operation and maintenance report, which records the parameter modification history and compatibility assessment results for subsequent auditing and analysis.

[0095] The above are preferred embodiments of the present invention. Any changes made to the technical solution of the present invention that do not exceed the scope of the technical solution of the present invention shall fall within the protection scope of the present invention.

Claims

1. A local universal operation and maintenance system for distribution network protection devices, characterized in that, Self-describing information for distribution network protection is transmitted using a file transfer-based method. The self-describing information includes operation and maintenance tools and distribution network protection self-describing files; The transmission directory for operation and maintenance tools and distribution network protection self-description files is Para; The operation and maintenance tools and the self-description file for distribution network protection are transmitted with the name Para.inf; The local universal operation and maintenance system for distribution network protection devices also includes a dynamic parameter mapping engine, an intelligent version identification mechanism, and a multi-dimensional compatibility evaluation system.

2. The local universal operation and maintenance system for distribution network protection devices according to claim 1, characterized in that, The operation and maintenance tool and the distribution network protection self-description file transfer file contain two parts: the first part is the file description of the parameters, and the second part is the information body address of the parameters. The Chinese character encoding format adopts UTF-8 format.

3. A local universal operation and maintenance system for distribution network protection devices according to claim 1, characterized in that, The dynamic parameter mapping engine includes the following: The dynamic parameter mapping engine achieves automatic parameter identification and mapping conversion by defining a standardized parameter description format in the Para.inf file; the dynamic parameter mapping engine consists of four core modules: Automatic parameter address parsing module: Automatically parses parameter address information in the Para.inf file without manual configuration; Intelligent parameter type identification module: Automatically identifies parameter types based on parameter self-description information, including protection settings, pressure plate activation / deactivation status, and device time parameters; Parameter value range dynamic verification module: dynamically determines the valid range of parameter values ​​based on parameter type, and automatically alarms when values ​​exceed the range; Parameter mapping relationship generation module: Automatically generates cross-vendor parameter mapping relationship table based on the parsing results.

4. A local universal operation and maintenance system for distribution network protection devices according to claim 1, characterized in that, The intelligent version identification mechanism includes the following: The intelligent version identification mechanism can automatically identify the model, firmware version, and protocol implementation method of the distribution network protection device, and automatically adjust the parameter parsing strategy according to the version information; The intelligent version identification mechanism includes: Automatic device model identification module: Automatically identifies the model of distribution network protection device by analyzing the structure and content characteristics of the Para.inf file; Firmware version compatibility analysis module: Compares the parameter differences between the current version and historical versions to evaluate version compatibility; Specification Implementation Difference Detection Module: Detects differences in specification implementations from different vendors and provides adaptation strategies; Upgrade path recommendation module: Based on version compatibility analysis results, recommends the optimal upgrade path.

5. A local universal operation and maintenance system for distribution network protection devices according to claim 1, characterized in that, The aforementioned multi-dimensional compatibility assessment system includes the following: A multi-dimensional compatibility assessment system conducts a comprehensive risk assessment before parameter modification, effectively preventing security incidents caused by parameter configuration errors. The multi-dimensional compatibility assessment system includes: Parameter integrity verification module: checks whether the parameter file is complete and whether there are any missing key parameters; Specification consistency verification module: Verifies whether the parameter configuration conforms to industry specification requirements; Address mapping conflict detection module: Detects whether there are conflicts in parameter addresses to avoid address mapping errors; Security Risk Assessment Module: Assess the security risks that may be caused by incorrect parameter configuration, and issue alerts or block high-risk operations.

6. A method for operating a local universal operation and maintenance system for distribution network protection devices, applied in the operation of a local universal operation and maintenance system for distribution network protection devices as described in any one of claims 1 to 5, characterized in that, The working method of the local universal operation and maintenance system for distribution network protection devices includes the following: Step S1: The distribution network protection device and maintenance tools establish a connection using a dedicated protocol; Step S2: The operation and maintenance tool issues the Para directory name to the distribution network protection according to the file transfer method in the dedicated protocol; Step S3: The distribution network protection device uploads the file information in the Para directory to the operation and maintenance tool according to the file transfer method of the dedicated protocol. The information includes the Para.inf file name, file size and file generation time. Step S4: The operation and maintenance tool issues a command to retrieve the configuration file Para.inf using the file transfer method specified in the dedicated protocol; Step S5: The distribution network protection device transmits the contents of the parameter file Para.inf to the operation and maintenance tool using a dedicated protocol in the form of data frames; Step S6: The operation and maintenance tool parses the contents of the Para.inf file sent by the distribution network protection device; it maps the parameter self-description information to the parameter information address; the contents of the Para.inf file are one line per parameter element, and each line contains the parameter address and the parameter self-description information, with the parameter address and self-description information separated by an English comma; at the same time, the operation and maintenance tool starts the dynamic parameter mapping engine to intelligently process the parsed parameters; Step S7: The operation and maintenance tools use the parameter viewing and modification rules of the dedicated specifications to view or modify the parameters; before modifying the parameters, a multi-dimensional compatibility assessment system is launched to conduct a security assessment of the parameter configuration; Step S8: After the operation and maintenance debugging is completed, the operation and maintenance tool generates an operation and maintenance report, recording the parameter modification history and compatibility assessment results.

7. The working method of a local universal operation and maintenance system for distribution network protection devices according to claim 6, characterized in that, When implementing a local general operation and maintenance system for a distribution network protection device, the operation and maintenance tools and the distribution network protection self-description file transmission file content, including the file description of the parameters and the information body address of the parameters, are all transmitted in a data stream manner.

8. The working method of a local universal operation and maintenance system for a distribution network protection device according to claim 6, characterized in that, When implementing a local general operation and maintenance system for a distribution network protection device, the dedicated protocol includes the 101 protocol or the 104 protocol.

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