Abnormal Analysis Method and Related Device for DC Power Supply Module of Distribution Automation Switch

Abstract

The present application discloses a method for analyzing anomalies of a DC power supply module of a distribution automation switch and related devices. First, a list of distribution automation switches to be analyzed in a distribution line and the connection relationships between the distribution automation switches are obtained, and a tree-shaped topology diagram is generated according to the connection relationships; the real-time communication status of the communication terminals corresponding to the distribution automation switches is read as the initial communication status of the corresponding distribution automation switches; when the distribution automation switch changes from the closing state to the opening state, a list of distribution automation switches downstream of the tripping switch and a list of corresponding communication terminals are searched according to the tree-shaped topology diagram; the communication terminals with normal communication status in the communication terminal list are determined according to the initial communication status, data commands are sent to the communication terminals with normal communication status, and the status of the DC power supply module is analyzed according to the response to the data commands, solving the problem in the prior art that additional DC power supply module status monitoring devices need to be installed, resulting in high costs.

Description

Technical Field

[0001] The present application relates to the technical field of distribution automation switches, and in particular, to a method for analyzing anomalies of a DC power supply module of a distribution automation switch and related devices. Background Art

[0002] In recent years, a large number of distribution network automation switches have been connected to distribution lines, bringing great convenience to the work of distribution network operation monitoring, fault isolation, mode conversion, etc., saving operation time and improving power supply reliability. However, since the distribution network automation switches need to be operated during the power outage process of the line, generally, a DC battery and a DC power supply module are required to provide operating power for the switches. The distribution network automation switches have many installation points and are widely distributed, and the DC batteries and DC modules used have low costs and short service lives and are easily damaged, and it is difficult to detect after damage. After the DC battery or DC power supply module of the distribution network automation switch is damaged, it is very easy to cause the distribution network automation switch to be unable to isolate faults in time during distribution network faults, or unable to respond to remote control commands, affecting the operation of the distribution network.

[0003] If it is necessary to monitor the working states of the DC modules and DC batteries of the distribution network automation switches, personnel need to go to the site for regular discharge tests. However, due to various reasons such as the too high cost of regular inspections of the DC modules of the distribution network switches, the DC power supply modules and batteries configured for the distribution network automation switches cannot be subject to large-scale regular inspections. Therefore, it is urgent to study a method that can conveniently detect the DC batteries and power supply states of the distribution network automation switches, replace or repair them after detecting that the DC batteries or modules are damaged, change the regular inspection or expiration replacement of the DC modules and DC batteries of the distribution network automation switches to condition-based maintenance, and reduce the labor intensity of maintenance personnel.

[0004] To solve the problem of monitoring the DC modules and DC batteries of a large number of distribution network automation switches, most of the current technical solutions are to install DC battery monitoring modules and DC power supply monitoring modules. However, such technical solutions require equipment installation, require additional equipment investment, and consume a large amount of manpower for circuit transformation on existing equipment, which is not cost-effective. Summary of the Invention

[0005] The present application provides a method for analyzing anomalies of a DC power supply module of a distribution automation switch and related devices, which is used to solve the technical problem that the existing technology requires the installation of DC power supply module state monitoring equipment, resulting in high costs.

[0006] In view of this, in the first aspect of the present application, a method for analyzing anomalies of a DC power supply module of a distribution automation switch is provided, and the method includes:

[0007] Obtain a list of distribution automation switches to be analyzed in the distribution line, as well as the connection relationships between the distribution automation switches, and generate a tree-shaped topology diagram according to the connection relationships between the distribution automation switches;

[0008] Read the real-time communication status of the communication terminals corresponding to the distribution automation switches, and use it as the initial communication status of the corresponding distribution automation switches;

[0009] When the distribution automation switch changes from the closed state to the open state, search out the list of distribution automation switches downstream of the tripping switch and the corresponding list of communication terminals according to the tree-shaped topology diagram;

[0010] Determine the normal communication terminals with normal communication status in the communication terminal list according to the initial communication status, send data commands to the communication terminals with normal communication status through the dispatching master station or the distribution master station, and analyze the status of the DC power supply module according to the response situation.

[0011] Optionally, the sending data commands to the communication terminals with normal communication status through the dispatching master station or the distribution master station and analyzing the status of the DC power supply module according to the response to the data commands specifically include:

[0012] Send data commands to the communication terminals with normal communication status through the dispatching master station or the distribution master station. After a preset delay time, determine whether there is a response from the communication terminals in the communication terminal list, and determine the DC power supply module of the distribution automation switch corresponding to the communication terminal that does not respond to the data command as an abnormal state, and obtain the distribution automation switch with an abnormal DC power supply module;

[0013] Wherein, the data command is: a general call command or a time synchronization command.

[0014] Optionally, after sending data commands to the communication terminals with normal communication status through the dispatching master station or the distribution master station and analyzing the status of the DC power supply module according to the response to the data commands, it further includes:

[0015] Generate an alarm signal based on the distribution automation switch with an abnormal DC power supply module and the corresponding switch opening time, and send the alarm signal to the operation and maintenance personnel.

[0016] Optionally, the communication terminal includes: DTU, FTU or RTU.

[0017] The second aspect of the present application provides a system for analyzing abnormal DC power supply modules of distribution automation switches, and the system includes:

[0018] A generating unit, configured to obtain a list of distribution automation switches to be analyzed in a distribution line and the connection relationships between the distribution automation switches, and generate a tree-shaped topology diagram according to the connection relationships between the distribution automation switches;

[0019] A reading unit, configured to read the real-time communication status of a communication terminal corresponding to a distribution automation switch and use it as the initial communication status of the corresponding distribution automation switch;

[0020] A searching unit, configured to, when a distribution automation switch changes from a closed state to a tripped state, search out a list of distribution automation switches downstream of the tripped switch and a list of corresponding communication terminals according to the tree-shaped topology diagram;

[0021] An analyzing unit, configured to determine, according to the initial communication status, communication terminals with normal communication status in the communication terminal list, send a data command to the communication terminals with normal communication status through a dispatching master station or a distribution master station, and analyze the status of a DC power supply module according to the situation of responding to the data command.

[0022] Optionally, the analyzing unit is specifically configured to:

[0023] Determine, according to the initial communication status, communication terminals with normal communication status in the communication terminal list, send a data command to the communication terminals with normal communication status through a dispatching master station or a distribution master station, and after a preset time delay, determine whether there is a communication terminal in the communication terminal list that responds;

[0024] Determine that the DC power supply module of a distribution automation switch corresponding to a communication terminal that does not respond to the data command is in an abnormal state, and obtain a distribution automation switch with an abnormal DC power supply module, where the data command is: a general call command or a time synchronization command.

[0025] Optionally, it further includes: an alarming unit;

[0026] The alarming unit is configured to generate an alarm signal based on a distribution automation switch with an abnormal DC power supply module and the corresponding switch tripping time, and send the alarm signal to an operation and maintenance personnel.

[0027] Optionally, the communication terminal includes: a DTU, an FTU or an RTU.

[0028] A third aspect of the present application provides a device for analyzing an abnormal DC power supply module of a distribution automation switch, where the device includes a processor and a memory:

[0029] The memory is configured to store program codes and transmit the program codes to the processor;

[0030] The processor is configured to execute the steps of the abnormal analysis method for the DC power supply module of the distribution automation switch as described in the first aspect above according to the instructions in the program code.

[0031] A fourth aspect of the present application provides a computer-readable storage medium for storing program code for executing the abnormal analysis method for the DC power supply module of the distribution automation switch as described in the first aspect above.

[0032] It can be seen from the above technical solutions that the present application has the following advantages:

[0033] The present application provides an abnormal analysis method for the DC power supply module of a distribution automation switch, including: obtaining a list of distribution automation switches to be analyzed in a distribution line and the connection relationship between the distribution automation switches, and generating a tree-shaped topology diagram according to the connection relationship between the distribution automation switches; reading the real-time communication status of the communication terminal corresponding to the distribution automation switch and using it as the initial communication status of the corresponding distribution automation switch; when the distribution automation switch changes from the closed state to the open state, searching for a list of distribution automation switches downstream of the tripped switch and the corresponding communication terminal list according to the tree-shaped topology diagram; determining the communication terminals with normal communication status in the communication terminal list according to the initial communication status, sending a data command to the communication terminals with normal communication status through a dispatching master station or a distribution master station, and analyzing the status of the DC power supply module according to the response to the data command.

[0034] Compared with the prior art:

[0035] The inventors found in the research that general distribution network automation switches have communication functions and communicate with the distribution network automation master station in real time, and the DTU / FTU / RTU responsible for communication is generally powered by a DC system. Once the distribution network automation switch undergoes tripping, power outage, or power transfer operations, causing the DTU / FTU / RTU to lose AC power supply and switch to DC power supply, if the DTU / FTU / RTU of the distribution network automation switch experiences a short communication interruption or a permanent communication interruption, it means that the DC communication module or battery may be damaged and needs to be repaired.

[0036] In addition, the online status of the DTU / FTU / RTU corresponding to the distribution network automation switch is generally judged by the distribution network automation master station according to the response of the application layer message, which has a certain delay. The specific delay time is determined by the master station pre-protocol judgment program and the set parameters. Moreover, in a normally operating distribution line, to reduce the risks and network losses brought by closed-loop operation, it is generally operated in an open-loop manner (separating the closed-loop point switch).

[0037] Therefore, this method can use a computer system to obtain relevant data and perform analysis and calculations, with high efficiency and accuracy. It can effectively detect the damage of the DC battery or DC power supply module of the distribution automation switch, without the need to additionally install any detection devices in the existing automation equipment, greatly reducing the operation monitoring cost. It can detect the defects of the DC module or battery in advance, effectively improve the availability of the distribution automation switch, assist in improving the power supply reliability of the distribution network, and provide system analysis support for distribution operation management personnel, thus solving the technical problem of high cost caused by the need to install state monitoring equipment for DC power supply modules in the existing technology. Description of the Drawings

[0038] Figure 1 It is a schematic flowchart of an embodiment of a method for analyzing abnormalities in a DC power supply module of a distribution automation switch provided in an embodiment of the present application;

[0039] Figure 2 It is a schematic diagram of a system of an embodiment of a system for analyzing abnormalities in a DC power supply module of a distribution automation switch provided in an embodiment of the present application. Detailed Embodiments

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0041] Please refer to Figure 1 , a method for analyzing abnormalities in a DC power supply module of a distribution automation switch provided in an embodiment of the present application includes:

[0042] Step 101: Obtain a list of distribution automation switches to be analyzed in a distribution line and the connection relationships between the distribution automation switches, and generate a tree-shaped topology diagram according to the connection relationships between the distribution automation switches;

[0043] It should be noted that in this embodiment, the equipment list of the distribution automation switches to be analyzed in the distribution line and the connection relationships between the distribution automation switches are obtained from the CIM models of the distribution network automation master station system and the GIS system, and the automation switches are sorted into a tree-shaped topology according to the connection relationships, so as to generate a tree-shaped topology diagram.

[0044] Step 102: Read the real-time communication status of the communication terminal corresponding to the distribution automation switch and use it as the initial communication status of the corresponding distribution automation switch;

[0045] It should be noted that the real-time communication status of the DTU / FTU / RTU corresponding to the distribution network automation switch is read from the distribution network automation master station system and marked as the initial communication status of the corresponding distribution network automation switch.

[0046] Step 103: When the distribution automation switch changes from the closed state to the open state, search out the list of distribution automation switches downstream of the tripped switch and the corresponding list of communication terminals according to the tree topology diagram;

[0047] It should be noted that scan the position change situation of all distribution network automation switches in the distribution network automation master station system. If it is found that a switch changes from the closed state to the open state, then according to the tree topology connection relationship of the distribution network automation switches obtained in step 101, search out the list of distribution network automation switches downstream of the tripped switch, and find the list of DTU / FTU / RTU corresponding to the downstream switches; otherwise, return to execute step 101.

[0048] Step 104: Determine the communication terminals with normal communication status in the communication terminal list according to the initial communication status, send data commands to the communication terminals with normal communication status through the dispatching master station or the distribution master station, and analyze the status of the DC power supply module according to the situation of responding to the data commands.

[0049] It should be noted that first, according to the list of DTU / FTU / RTU found in step 103, check the DTU / FTU / RTU with the real-time communication status of "normal communication" found in step 102 to form a list of DTU / FTU / RTU for command issuance; then send the general call command, time synchronization command or other data call commands one by one through the list of DTU / FTU / RTU in the normal state. After a delay of Δt, check the terminals in the DTU / FTU / RTU list that have no response to form a list of abnormal DTU / FTU / RTU and the list of distribution network automation switches corresponding to the DTU / FTU / RTU, so as to determine that the DC power supply module corresponding to the list of abnormal distribution network automation switches is in an abnormal state.

[0050] Furthermore, in one embodiment, after step 104, it further includes: generating an alarm signal based on the distribution automation switch with an abnormal DC power supply module and the corresponding switch opening time, and sending the alarm signal to the operation and maintenance personnel.

[0051] It should be noted that record the distribution automation switch with an abnormal DC power supply module and the corresponding switch opening time, and through the dispatcher alarm window or event window, notify the dispatcher and operation and maintenance personnel that "the DC battery or module of switch xxx on xxx main line of xx line at xx station is abnormal", and jump to step 101.

[0052] The above is a method for analyzing abnormalities in the DC power supply module of a distribution automation switch provided in the embodiments of the present application. The following is a system for analyzing abnormalities in the DC power supply module of a distribution automation switch provided in the embodiments of the present application.

[0053] Please refer to Figure 2 , a system for analyzing abnormalities in the DC power supply module of a distribution automation switch provided in the embodiments of the present application, includes:

[0054] A generating unit 201, configured to obtain a list of distribution automation switches to be analyzed in a distribution line and the connection relationship between the distribution automation switches, and generate a tree-shaped topology diagram according to the connection relationship between the distribution automation switches;

[0055] A reading unit 202, configured to read the real-time communication status of the communication terminal corresponding to the distribution automation switch and use it as the initial communication status of the corresponding distribution automation switch;

[0056] A searching unit 203, configured to, when the distribution automation switch changes from the closed state to the open state, search out a list of distribution automation switches downstream of the tripped switch and the corresponding list of communication terminals according to the tree-shaped topology diagram;

[0057] An analyzing unit 204, configured to determine the communication terminals with normal communication status in the communication terminal list according to the initial communication status, send a data command to the communication terminals with normal communication status through a dispatching master station or a distribution master station, and analyze the status of the DC power supply module according to the situation of responding to the data command.

[0058] Furthermore, an apparatus for analyzing abnormalities in the DC power supply module of a distribution automation switch is provided in the embodiments of the present application. The apparatus includes a processor and a memory:

[0059] The memory is used to store program codes and transmit the program codes to the processor;

[0060] The processor is configured to execute the method for analyzing abnormalities in the DC power supply module of a distribution automation switch described in the foregoing method embodiments according to the instructions in the program codes.

[0061] Furthermore, a computer-readable storage medium is provided in the embodiments of the present application. The computer-readable storage medium is used to store program codes, and the program codes are used to execute the method for analyzing abnormalities in the DC power supply module of a distribution automation switch described in the foregoing method embodiments.

[0062] Those skilled in the art can clearly understand that for the sake of convenience and brevity of description, the specific working processes of the above-described system and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0063] In the description of the present application and the above-mentioned drawings, the terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0064] It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects and indicates that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one (one) of the following" or its similar expression means any combination of these items, including any combination of single item (one) or plural items (ones). For example, at least one (one) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0065] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be in an electrical, mechanical, or other form.

[0066] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0067] In addition, in each embodiment of the present application, each functional unit can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0068] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (English full name: Read-Only Memory, English abbreviation: ROM), random access memories (English full name: Random Access Memory, English abbreviation: RAM), magnetic disks, or optical discs that can store program codes.

[0069] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

Claims

1. A method for analyzing anomalies in the DC power supply module of a distribution automation switch, characterized in that, Including: Obtain a list of distribution automation switches to be analyzed in the distribution line, as well as the connection relationships between the distribution automation switches, and generate a tree-shaped topology diagram according to the connection relationships between the distribution automation switches; Read the real-time communication status of the communication terminals corresponding to the distribution automation switches, and use it as the initial communication status of the corresponding distribution automation switches; When the distribution automation switch changes from the closed state to the open state, search for a list of distribution automation switches downstream of the tripping switch and the corresponding list of communication terminals according to the tree-shaped topology diagram; Determine the communication terminals with normal communication status in the communication terminal list according to the initial communication status, send a data command to the communication terminals with normal communication status through the dispatching master station or the distribution master station, and analyze the status of the DC power supply module according to the response to the data command.

2. The abnormal analysis method of the DC power supply module of the distribution automation switch according to claim 1, characterized in that, The step of sending a data command to the communication terminals with normal communication status through the dispatching master station or the distribution master station and analyzing the status of the DC power supply module according to the response to the data command specifically includes: Send a data command to the communication terminals with normal communication status through the dispatching master station or the distribution master station. After a preset delay time, determine whether there is a communication terminal responding in the communication terminal list, and determine the DC power supply module of the distribution automation switch corresponding to the communication terminal that does not respond to the data command as an abnormal state, so as to obtain the distribution automation switches with abnormal DC power supply modules; Wherein, the data command is: a general call command or a time synchronization command.

3. The abnormal analysis method for the DC power supply module of the distribution automation switch according to claim 1, wherein After the step of sending a data command to the communication terminals with normal communication status through the dispatching master station or the distribution master station and analyzing the status of the DC power supply module according to the response to the data command, it further includes: Generate an alarm signal based on the distribution automation switches with abnormal DC power supply modules and the corresponding switch opening times, and send the alarm signal to the operation and maintenance personnel.

4. The abnormal analysis method for the DC power supply module of the distribution automation switch according to claim 1, characterized in that The communication terminal includes: DTU, FTU or RTU.

5. A system for abnormal analysis of a DC power supply module of a distribution automation switch, characterized in that, Including: A generating unit, configured to obtain a list of distribution automation switches to be analyzed in the distribution line, as well as the connection relationships between the distribution automation switches, and generate a tree-shaped topology diagram according to the connection relationships between the distribution automation switches; A reading unit, configured to read the real-time communication status of the communication terminals corresponding to the distribution automation switches, and use it as the initial communication status of the corresponding distribution automation switches; A searching unit, configured to search for a list of distribution automation switches downstream of the tripping switch and the corresponding list of communication terminals according to the tree-shaped topology diagram when the distribution automation switch changes from the closed state to the open state; An analyzing unit, configured to determine the communication terminals with normal communication status in the communication terminal list according to the initial communication status, send a data command to the communication terminals with normal communication status through the dispatching master station or the distribution master station, and analyze the status of the DC power supply module according to the response to the data command.

6. The abnormal analysis system for the DC power supply module of the distribution automation switch according to claim 5, wherein, The analyzing unit is specifically configured to: Determine the communication terminals with normal communication status in the communication terminal list according to the initial communication status, send a data command to the communication terminals with normal communication status through the dispatching master station or the distribution power master station, and after a preset time delay, determine whether there is a communication terminal response in the communication terminal list; Determine the DC power supply module of the distribution automation switch corresponding to the communication terminal that does not respond to the data command as an abnormal state, and obtain the distribution automation switch with an abnormal DC power supply module, where the data command is: a general call command or a time synchronization command.

7. The abnormal analysis system for the DC power supply module of the distribution automation switch according to claim 5, wherein Further includes: An alarm unit; The alarm unit is configured to generate an alarm signal based on the distribution automation switch with an abnormal DC power supply module and the corresponding switch tripping time, and send the alarm signal to the operation and maintenance personnel.

8. The abnormal analysis system for the DC power supply module of the distribution automation switch according to claim 5, characterized in that, The communication terminal includes: DTU, FTU or RTU.

9. A device for analyzing abnormalities of a DC power supply module of a distribution automation switch, characterized in that, The device includes a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the method for analyzing the abnormality of the DC power supply module of the distribution automation switch according to any one of claims 1-4 based on the instructions in the program code.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store program code, and the program code is used to execute the method for analyzing the abnormality of the DC power supply module of the distribution automation switch according to any one of claims 1-4.

Images