Scanning method and device based on operation mode of power distribution network, equipment and medium

Abstract

The embodiment of the invention provides a scanning method and device based on a power distribution network operation mode, equipment and a medium. The method comprises the steps of obtaining real-time topological data of a power distribution network in response to a trigger signal; wherein the real-time topological data comprises state information of the switch equipment and listing information of a feeder line, the state information represents an electrical state of the switch equipment, and the listing information represents an operation mark of the feeder line; determining open loop point information of a loop structure in the power distribution network according to the real-time topological data of the power distribution network; wherein the loop structure is formed by connecting at least two feedback lines through an interconnection switch; determining whether the loop structure is in a special operation mode or not based on a preset judgment rule according to the on-off position state, the listing information and the open-loop point information of the interconnection switch of the loop structure; when it is determined that the loop structure is in the special operation mode, a scanning result is output. The method is used for achieving the effect of improving the efficiency and accuracy of scanning the special operation mode of the power distribution network.

Description

Technical Field

[0001] This application relates to the field of power system technology, and in particular to a scanning method, apparatus, equipment and medium based on the operation mode of a power distribution network. Background Technology

[0002] As the terminal network in a power system that directly supplies power to users, the stability and security of the distribution network's operation are crucial to the reliability of power supply. Under normal operating conditions, the distribution network achieves breakpoint control of ring network lines by setting reasonable switchgear locations to balance loads, optimize power transfer capacity, and meet maintenance needs. However, in actual operation, due to reasons such as distribution network maintenance, main grid load gaps, and fault handling, the distribution network's operating mode is frequently adjusted, which can easily lead to deviations from the normal operating mode and the formation of special operating modes.

[0003] In existing technologies, dispatchers mainly record information related to special operating modes manually, which is inefficient and prone to errors. Specifically, there are problems such as inconsistent formats, easy omission of information, and untimely updates. This makes it difficult for dispatchers to quickly identify and manage special operating modes of the distribution network. If special operating modes are not identified and restored for a long time, it will lead to problems such as line overload and voltage drop, and eventually cause large-scale power outages.

[0004] Therefore, there is an urgent need for a solution that can improve the efficiency and accuracy of scanning distribution networks in special operating modes. Summary of the Invention

[0005] The scanning method, apparatus, equipment, and medium based on the operation mode of the power distribution network provided in this application are intended to improve the efficiency and accuracy of scanning the special operation mode of the power distribution network.

[0006] In a first aspect, embodiments of this application provide a scanning method based on the operation mode of a power distribution network, comprising:

[0007] In response to a trigger signal, real-time topology data of the distribution network is acquired; the real-time topology data includes status information of switchgear and tag information of feeders, the status information represents the electrical status of switchgear, and the tag information represents the operation markings of feeders;

[0008] Based on real-time topology data of the distribution network, determine the open-loop point information of the loop structure in the distribution network; wherein, the loop structure is composed of at least two feeder lines connected by tie switches, and the open-loop point information includes the number and location of the open-loop points, and the open-loop points represent the switching equipment used to disconnect the feeders;

[0009] Based on the open / closed status of the tie switch in the loop structure, the tag information, and the open loop point information, and based on the preset judgment rules, it is determined whether the loop structure is in a special operating mode.

[0010] When the loop structure is determined to be in a special operating mode, the scan results are output; the scan results are used to describe the loop structure.

[0011] In an optional example, based on real-time topology data of the distribution network, the open-loop point information of the loop structure in the distribution network is determined, including:

[0012] Identify tie switches in the power distribution network; wherein, a tie switch is a switching device used to connect or disconnect electrical connections between different power sources;

[0013] Determine the loop structure in the distribution network based on the tie switches;

[0014] Based on real-time topology data of the distribution network, determine the open-loop point information of the loop structure in the distribution network.

[0015] In an optional example, the loop structure in the distribution network is determined based on the tie switch, including:

[0016] Determine the target outgoing terminal of the feeder starting from the tie switch;

[0017] If there is a continuously conducting electrical path between the target outgoing terminals of at least two feedback lines, then the at least two feedback lines and the tie switch are identified as a loop structure in the distribution network.

[0018] In an optional example, the status information of the switching equipment includes its operating status, which indicates that the switching equipment is allowed to supply power; based on the real-time topology data of the distribution network, the open-loop point information of the loop structure in the distribution network is determined, including:

[0019] Based on the real-time topology data of the distribution network, the switchgear in the loop structure that is in the running state, is not a tie switch, and is in the open position is selected as the open loop point;

[0020] The location and total number of each open loop point are used to determine the open loop point information of the loop structure in the distribution network.

[0021] In an optional example, based on the open / closed position status of the tie switch in the loop structure, the tagging information, and the open-loop point information, a preset determination rule is used to determine whether the loop structure is in a special operating mode, including:

[0022] If the contact switch is determined to be in the closed position, then determine whether the tag information is empty.

[0023] If the listing information is empty, and the number of open loop points in the open loop point information is equal to the preset first threshold, then the loop structure is determined to be in a special operating mode.

[0024] In an optional example, it also includes:

[0025] If the listing information is not empty, then the feeder to which the listing information belongs is determined as the target feeder;

[0026] Based on the open-loop point information, determine the number of open-loop points in the target feeder;

[0027] If the number of open-loop points in the target feeder is less than or equal to a preset second threshold, then the loop structure is determined to be in a special operating mode.

[0028] In an optional example, it also includes:

[0029] If the switch is determined to be in the open / closed position, or if there is an open loop point in every feeder of the loop structure, or if the number of open loop points in the target feeder is greater than a preset third threshold, an abnormal alarm will be triggered. The abnormal alarm is used to alert the dispatcher that there is a topological anomaly in the loop structure.

[0030] Secondly, embodiments of this application provide a scanning device based on the operation mode of a power distribution network, comprising:

[0031] The response module is used to acquire real-time topology data of the distribution network in response to a trigger signal. The real-time topology data includes the status information of the switchgear and the tag information of the feeders. The status information represents the electrical status of the switchgear and the tag information represents the operation mark of the feeders.

[0032] The first processing module is used to determine the open-loop point information of the loop structure in the distribution network based on the real-time topology data of the distribution network. The loop structure is composed of at least two feeder lines connected by tie switches. The open-loop point information includes the number and location of the open-loop points, and the open-loop points represent the switching equipment used to disconnect the feeder lines.

[0033] The second processing module is used to determine whether the loop structure is in a special operating mode based on the open / closed position status of the tie switch, the tag information, and the open loop point information of the loop structure, according to preset judgment rules.

[0034] The output module is used to output the scan results when the loop structure is determined to be in a special operating mode; the scan results are used to describe the loop structure.

[0035] Thirdly, embodiments of this application provide an electronic device, including: a memory and a processor;

[0036] The memory stores the instructions that the computer executes;

[0037] The processor executes computer execution instructions stored in memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0038] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0039] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0040] The scanning method, apparatus, device, and medium based on the operation mode of the distribution network provided in this application acquire real-time topology data of the distribution network in response to a trigger signal. Further, based on the real-time topology data, the open-loop point information of the loop structure in the distribution network is determined. Further, based on the open / closed position status, tag information, and open-loop point information of the tie switch of the loop structure, and according to preset judgment rules, it is determined whether the loop structure is in a special operation mode. When it is determined that the loop structure is in a special operation mode, the scanning result is output. The real-time topology data includes the status information of the switchgear and the tag information of the feeder. The status information represents the electrical status of the switchgear, and the tag information represents the operation mark of the feeder. The loop structure is composed of at least two feeder lines connected by tie switches. The open-loop point information includes the number and location of open-loop points, and the open-loop point represents the switchgear used to disconnect the feeder. The scanning result is used to describe the loop structure. The method of this application replaces manual recording by real-time retrieval of topology data and automatic quantification of open-loop point information and tagging information. Simultaneously, by combining the on / off status of the tie switches in the loop structure, tagging information, and open-loop point information, it determines whether the loop structure is in a special operating mode based on preset judgment rules. This eliminates the need for manual intervention and standardizes the judgment dimensions for special operating modes, eliminating information omissions and formatting issues. Furthermore, when a loop structure is determined to be in a special operating mode, the scan results are output immediately, shortening the manual processing cycle. The method of this application effectively improves the efficiency and accuracy of scanning special operating modes in distribution networks. Attached Figure Description

[0041] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0042] Figure 1 A flowchart illustrating a scanning method based on distribution network operation mode provided in this application. Figure 1 ;

[0043] Figure 2 A flowchart illustrating a scanning method based on distribution network operation mode provided in this application. Figure 2 ;

[0044] Figure 3 A flowchart illustrating a scanning method based on distribution network operation mode provided in this application. Figure 3 ;

[0045] Figure 4 A schematic diagram of the structure of a scanning device based on the operation mode of a power distribution network provided in this application;

[0046] Figure 5 This is a schematic diagram of the structure of an electronic device provided in this application.

[0047] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0048] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0049] As the terminal network in a power system that directly supplies power to users, the stability and security of the distribution network's operation are crucial to the reliability of power supply. Under normal operating conditions, the distribution network achieves breakpoint control of ring network lines by setting reasonable switchgear locations to balance loads, optimize power transfer capacity, and meet maintenance needs. However, in actual operation, due to reasons such as distribution network maintenance, main grid load gaps, and fault handling, the distribution network's operating mode is frequently adjusted, which can easily lead to deviations from the normal operating mode, forming special operating modes.

[0050] In existing technologies, dispatchers mainly record information related to special operating modes manually, which is inefficient and prone to errors. Specifically, there are problems such as inconsistent formats, easy omission of information, and untimely updates. This makes it difficult for dispatchers to quickly identify and manage special operating modes of the distribution network. If special operating modes are not identified and restored for a long time, it will lead to problems such as line overload and voltage drop, and eventually cause large-scale power outages.

[0051] Therefore, there is an urgent need for a solution that can improve the efficiency and accuracy of scanning distribution networks in special operating modes.

[0052] The scanning method, apparatus, equipment, and medium based on distribution network operation modes provided in this application replace manual recording by real-time retrieval of topology data and automatic quantification of open-loop point information and tag information. Simultaneously, by combining the on / off status of the tie switches in the loop structure, tag information, and open-loop point information, and based on preset judgment rules, it determines whether the loop structure is in a special operation mode without manual intervention. Furthermore, it standardizes and unifies the judgment dimensions for determining special operation modes, eliminating information omissions and format confusion. Moreover, when a loop structure is determined to be in a special operation mode, the scanning results are immediately output, shortening the manual processing cycle. The method of this application achieves the effect of improving the efficiency and accuracy of scanning special operation modes of the distribution network.

[0053] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0054] Figure 1 A flowchart illustrating a scanning method based on distribution network operation mode provided in this application. Figure 1 The execution subject of this method can be a server, host, other devices, etc., such as Figure 1 As shown, the method includes:

[0055] S101. In response to the trigger signal, acquire real-time topology data of the distribution network; wherein, the real-time topology data includes status information of switchgear and tag information of feeders, the status information represents the electrical status of switchgear, and the tag information represents the operation mark of feeders.

[0056] S102. Based on the real-time topology data of the distribution network, determine the open-loop point information of the loop structure in the distribution network; wherein, the loop structure is composed of at least two feeder lines connected by tie switches, and the open-loop point information includes the number and location of the open-loop points, and the open-loop points represent the switching equipment used to disconnect the feeders.

[0057] S103. Based on the open / closed position status of the tie switch of the loop structure, the tag information, and the open loop point information, determine whether the loop structure is in a special operating mode according to the preset judgment rules.

[0058] S104. When the loop structure is determined to be in a special operating mode, output the scan results; wherein, the scan results are used to describe the loop structure.

[0059] In step S101, the trigger signal can refer to an event or instruction used to indicate the scanning of the distribution network operation mode. For example, the trigger signal can be initiated by the dispatcher at any time, or it can be initiated by a periodic (e.g., every 5 minutes) task of the executing entity of this application, or it can be triggered by the distribution management system (DMS) in response to changes in the open / closed state of the switching equipment in the distribution network, so that the executing entity of this application can respond to the trigger signal.

[0060] A power distribution network can refer to a power distribution network that provides power to users. A power distribution network may include, but is not limited to, switchgear, feeders, substations, transformers, etc.

[0061] Real-time topology data can refer to transient model data that describes the current electrical connection relationships and operating status of the distribution network. For example, the model that can be used to output real-time topology data can be a preset simulation model such as the Common Information Model (CIM). For example, the data source of this model is the data table in the distribution network management system to ensure data consistency and real-time performance.

[0062] Switchgear can refer to equipment such as load switches, disconnect switches, and knife switches. The status information of switchgear can refer to the electrical state reflecting its current conductivity. For example, the status information may include operating status, hot standby status, cold standby status, and maintenance status. This status information can be obtained from the distribution network management system. Alternatively, it can be set and synchronized to the distribution network management system by the dispatcher through local operating handles and dispatch instructions. In one possible implementation, the status information may also include the open / closed position of the switchgear. The open / closed position includes both open and closed positions; when open, the line is disconnected, and when closed, the line is connected. This open / closed position can be obtained through a Supervisory Control and Data Acquisition (SCADA) system for the distribution network.

[0063] A feeder can refer to the power supply line section from the outgoing switch of a substation to the terminal distribution transformer. The feeder tagging information refers to the operation markers applied to the feeder by the dispatching side. These operation markers can be implemented by the dispatcher clicking the "Tag" button on the SCADA visual interface or by issuing tagging or detagding instructions through dispatching commands, and are stored in the DMS data table to record the current operation status of the feeder. For example, if there is a maintenance or other operation ticket, the feeder tagging information can be a string like "Maintenance Tag"; if no tag is attached, it is an empty string, meaning the feeder tagging information is empty.

[0064] In step S102, the loop structure can be a closed-loop electrical path formed by interconnecting at least two feedback lines through a tie switch. For example, if the tie switch belongs to both feeder A and feeder B, and the outgoing switches of the two feedback lines can be reached from the tie switch along the closed switch, then feeder A and feeder B are determined to form a loop structure.

[0065] An open-loop point refers to a switching device in a loop structure used to disconnect a feeder. The location of an open-loop point can be represented by two-dimensional coordinates, and the number of open-loop points is the sum of the open-loop points of at least two feeders. In essence, the number and location of open-loop points constitute the open-loop point information of the loop structure.

[0066] In step S103, the tie switch can refer to a switching device used to connect or disconnect the electrical connection between different power sources. It can be understood that the tie switch can also refer to a switching device used to connect or disconnect the electrical connection between different feeders.

[0067] The open / closed position status refers to the current electrical connection status of the switchgear. The open / closed position status includes open and closed. When the open position of the tie switch is open, the feeders are disconnected, forming electrical isolation. When the closed position of the tie switch is closed, the feeders are connected, forming electrical connection.

[0068] Pre-defined judgment rules refer to logical rules formulated by staff based on distribution network operation requirements and actual operating procedures to determine whether a loop structure is in a special operating mode. It should be understood that these pre-defined judgment rules are developed based on the distribution network topology, switchgear status information, and labeling information to ensure accurate identification and judgment of special operating modes.

[0069] Special operating modes refer to the operating modes of a distribution network under abnormal operating conditions, such as temporary operating modes caused by maintenance, fault handling, etc. It should be understood that under special operating modes, the topology or operating state of the distribution network differs from that of normal operation, requiring special attention and management to ensure the safety and reliability of the power grid.

[0070] In step S104, the scan results can refer to detailed information describing the current operating mode of the loop structure as a special operating mode. The output format of the scan results can be diversified to meet different application scenarios and user needs, such as displaying them in the form of data reports, visualization charts, or real-time alarm information. The specific content of the scan results may include, but is not limited to, the identification of the loop structure, open loop point information, the open / closed position status of the tie switch, and tag information.

[0071] The scanning method based on distribution network operation modes provided in this application replaces manual recording by real-time retrieval of topology data and automatic quantification of open-loop point information and tag information. Simultaneously, by combining the on / off status of the tie switches in the loop structure, tag information, and open-loop point information, and based on preset judgment rules, it determines whether the loop structure is in a special operation mode without manual intervention. Furthermore, it standardizes and unifies the judgment dimensions for determining special operation modes, eliminating information omissions and format confusion. Moreover, when a loop structure is determined to be in a special operation mode, the scanning results are output immediately, shortening the manual processing cycle. The method of this application achieves the effect of improving the efficiency and accuracy of scanning special operation modes of the distribution network.

[0072] Figure 2 A flowchart illustrating a scanning method based on distribution network operation mode provided in this application. Figure 2 ,like Figure 2 As shown, in this embodiment... Figure 1 Based on the embodiments, a scanning method based on the operation mode of the distribution network is described in detail. The method includes:

[0073] S201. In response to the trigger signal, acquire real-time topology data of the distribution network; wherein, the real-time topology data includes status information of switchgear and tag information of feeders, the status information represents the electrical status of switchgear, and the tag information represents the operation mark of feeders.

[0074] S202. Determine the tie switches in the distribution network; wherein, the tie switch is a switching device used to connect or disconnect the electrical connection between different power sources.

[0075] For example, the tie switches in the distribution network can be determined by using the topology analysis tool in the distribution network management system (which can be implemented by using graph theory algorithms (such as depth-first search or breadth-first search algorithms) to analyze the topology of the distribution network).

[0076] S203. Determine the loop structure in the distribution network based on the tie switch.

[0077] In one alternative implementation, step S203 may include:

[0078] Determine the target outgoing terminals of the feeders starting from the tie switch; if there is a continuous electrical path between the target outgoing terminals of at least two feeders, then the at least two feeders and the tie switch are determined as the loop structure in the distribution network.

[0079] The target outgoing end can refer to the outgoing end of the feeder starting from the tie switch. The outgoing end can refer to the starting end of the feeder drawn from the substation or switching station. For example, the outgoing end is usually connected to the main line of the distribution network.

[0080] For example, suppose a tie switch L connects feeder A and feeder B. Starting from tie switch L, the feeders travel along feeder A and feeder B to their respective outgoing terminals (such as outgoing switches in a substation). If there is a continuous electrical path from tie switch L to the outgoing terminals of feeder A and feeder B, then feeder A, feeder B, and tie switch L constitute a loop structure.

[0081] It is understandable that by analyzing the electrical connection relationship between the tie switch and each feeder outlet, the loop structure in the distribution network can be accurately identified, providing a basis for subsequent judgment of special operating modes.

[0082] S204. Based on the real-time topology data of the distribution network, determine the open-loop point information of the loop structure in the distribution network.

[0083] In an optional implementation, the status information of the switching device includes an operating status, which indicates that the switching device is allowed to supply power; step S204 may include:

[0084] Based on the real-time topology data of the distribution network, switchgear in the loop structure that is in operation, not a tie switch, and in the open / closed position is in the open position is selected as open loop points; the location and total number of each open loop point are determined as the open loop point information of the loop structure in the distribution network.

[0085] The operating status refers to the state of the switching equipment under normal operating conditions, allowing current to flow. The status information indicating the operating status signifies that the switching equipment is in a state where power supply is permitted, i.e., it meets the operating conditions. It can be understood that by filtering switching equipment with the status information indicating an operating status, it can be ensured that the identified open-loop point is an operable device that meets the operating conditions.

[0086] It is understandable that by filtering out switchgear that is not a tie switch, it is possible to exclude switchgear used to connect different feeders and focus on switchgear that may act as an open-loop point. It should be understood that tie switches are typically used for isolation between feeders during normal operation or for connection during special operation, and therefore need to be excluded to avoid misjudgment.

[0087] It is understandable that by filtering switchgear whose open / closed position is in the open position, switchgear currently in the open state can be identified. The open position indicates that the switchgear is not currently conducting, thus causing a loop interruption, which meets the definition of an open loop point.

[0088] It is understandable that selecting switchgear that simultaneously meets the following conditions in the loop structure—being in an operating state, not a tie switch, and in the open / closed position—as the open loop point allows for accurate identification of the actual open loop point in the loop structure. The advantage of this setup is that it ensures the identified open loop point meets the operating conditions, is in an open state, and is not a tie switch used to connect feeders, thus providing an accurate basis for subsequent judgments on special operating modes.

[0089] Furthermore, the location and total number of each open-loop point are determined as the open-loop point information of the loop structure in the distribution network. For example, the location of the open-loop point can be represented by the number of the switchgear, the coordinates of its installation location, or its node location in the distribution network topology diagram, while the total number of open-loop points is the number of switchgear that meets the above conditions.

[0090] It is understandable that by determining the open-loop point information of the loop structure in the distribution network, an accurate basis can be provided for subsequent judgments on special operating modes.

[0091] S205. If the contact switch is determined to be in the closed position, then determine whether the tag information is empty.

[0092] S206. If the listing information is empty and the number of open loop points in the open loop point information is equal to the preset first threshold, then the loop structure is determined to be in a special operating mode.

[0093] First, determine the open / closed position of the tie switch. If the tie switch is in the closed position, allowing current to flow, it indicates that at least two feeders in the loop structure are electrically connected. Then, further check the tagging information within the loop structure.

[0094] It is understandable that by checking the open / closed position of the tie switch and the tag information in the loop structure, it is possible to make a preliminary judgment on whether the loop structure is in normal operation or has special operating conditions.

[0095] If the listing information is empty, it indicates that the feeders in the loop structure have not been specifically marked for operation, that is, the current loop structure has not been clearly marked for maintenance, fault handling, etc.

[0096] Preferably, the preset first threshold can be 1, that is, the number of open-loop points in the open-loop point information is equal to 1, indicating that there is only one open-loop point in the loop structure, and that open-loop point is not a tie switch. In this case, the loop structure does not meet the requirements of normal operation, because under normal circumstances, the tie switch should be in the open position to ensure the open-loop operation of the loop structure.

[0097] It is understandable that when the interconnecting switch is in the closed position and the tag information is empty, it indicates that the loop structure is electrically connected, but it is not clearly marked with tag information. Combined with the case that the number of open loop points is 1, it can be determined that the loop structure is in a situation where it is not clearly marked but actually exists in a special operating mode. Therefore, it is determined that the loop structure is in a special operating mode.

[0098] S207. If the listing information is not empty, then determine the feeder to which the listing information belongs, which is the target feeder.

[0099] S208. Determine the number of open loop points in the target feeder based on the open loop point information.

[0100] S209. If the number of open loop points in the target feeder is less than or equal to the preset second threshold, then the loop structure is determined to be in a special operating mode.

[0101] If the tag information is empty, it indicates that the dispatcher has performed a specific operation mark (such as maintenance) on a certain feeder in the loop structure, which requires special attention.

[0102] For example, assuming the sign displays "Maintenance sign" and is marked on feeder A, then feeder A is determined to be the target feeder.

[0103] For example, based on the location of the open loop point in the open loop point information, the open loop point in the target feeder is determined and the number of open loop points in the target feeder is counted.

[0104] Preferably, the preset second threshold can be 2, that is, if the number of open loop points in the target feeder is less than or equal to 2, then the loop structure is determined to be in a special operating mode.

[0105] It is understandable that when the number of open loop points in the target feeder is small (less than or equal to 2), combined with the tagging information (such as maintenance tags), it indicates that the loop structure may be in an abnormal operating state due to maintenance, fault handling, or other operations. In this case, the loop structure does not meet the requirements of normal operation, and therefore it is determined that the loop structure is in a special operating mode.

[0106] S210. When the loop structure is determined to be in a special operating mode, output the scan results; wherein, the scan results are used to describe the loop structure.

[0107] S211. If the open / closed state of the tie switch is determined to be open, or there is an open loop point in each feeder of the loop structure, or the number of open loop points in the target feeder is greater than the preset third threshold, then an abnormal alarm is initiated; wherein, the abnormal alarm is used to prompt the dispatcher that there is a topological abnormality in the loop structure.

[0108] If the tie switch is in the open position, it means that the tie switch is currently in the open state, indicating that two or more feeders in the loop structure are electrically isolated. In this case, since the loop structure should normally be in closed-loop operation (i.e., the tie switch should be closed), it indicates that there is a topology anomaly.

[0109] If every feeder in the loop structure has at least one open-loop point, it indicates that the entire loop structure is divided by multiple breakpoints and cannot form a normal closed-loop or open-loop operating state. This situation indicates that the loop structure has a topology anomaly.

[0110] Preferably, the preset third threshold can be 2, meaning that if the number of open-loop points in the target feeder is greater than the preset third threshold, a topological anomaly is determined to exist in the loop structure. In this case, it indicates that the number of open-loop points in the loop structure is too large, which does not meet the requirements for normal operation.

[0111] It is understandable that if the switch is determined to be in the open / closed position, or if there is an open-loop point in every feeder of the loop structure, or if the number of open-loop points in the target feeder exceeds a preset third threshold, an abnormal alarm will be triggered. The abnormal alarm can take the form of an audible alarm, text prompt, or graphical prompt. The beneficial effect of this setting is that it provides dispatchers with intuitive and accurate abnormal information, helping them to quickly locate problems and make decisions, thereby optimizing the operation and management efficiency of the distribution network.

[0112] The method described in this application achieves the effect of improving the efficiency and accuracy of scanning distribution networks in special operating modes.

[0113] Figure 3 A flowchart illustrating a scanning method based on distribution network operation mode provided in this application. Figure 3 ,like Figure 3 As shown, this embodiment is described based on the foregoing embodiments, and the method includes:

[0114] S301. In response to a trigger signal, acquire real-time topology data of the distribution network; wherein, the real-time topology data includes the status information of switchgear and the tagging information of feeders.

[0115] S302. Determine the tie switches in the distribution network, and determine the loop structure in the distribution network based on the tie switches.

[0116] S303. Determine whether there is an open loop point in the loop structure.

[0117] The existence of open-loop points in a loop structure can be understood as whether the number of open-loop points in the loop structure is zero. The existence of open-loop points in the loop structure indicates that the number of open-loop points in the loop structure is not zero, while the absence of open-loop points in the loop structure indicates that the number of open-loop points in the loop structure is zero.

[0118] S304. If there is an open loop point in the loop structure, determine whether there is an open loop point on both sides of the tie switch.

[0119] The statement that there are open-loop points on both sides of the tie switch can be understood as meaning that there is an open-loop point in every feeder of the loop structure. The statement that there are not open-loop points on both sides of the tie switch can be understood as meaning that there is no open-loop point in a certain feeder of the loop structure.

[0120] S305. If there are not open loop points on both sides of the tie switch, determine whether the tie switch is in the closed position.

[0121] In this context, the state of the interconnecting switch not being closed can be understood as the state of the interconnecting switch being open.

[0122] S306. If the contact switch is in the closed position, determine whether a maintenance sign is posted on the feeder where the open loop point is located.

[0123] In this context, whether a maintenance sign is hung on the feeder where the open loop point is located can be understood as whether the signage information is empty. If a maintenance sign is hung on the feeder where the open loop point is located, it means that the signage information of the feeder where the open loop point is located is not empty. If no maintenance sign is hung on the feeder where the open loop point is located, it means that the signage information of the feeder where the open loop point is located is empty.

[0124] S307. If a maintenance sign is posted on the feeder where the open loop point is located, it is determined that the loop structure is in a special operating mode.

[0125] S308. If a maintenance sign is attached to the feeder where the open loop point is located, determine whether the number of open loop points in the feeder to which the sign information belongs is greater than 2.

[0126] S309. If the number of open loop points in the feeder to which the listing information belongs is less than or equal to 2, then the loop structure is determined to be in a special operating mode.

[0127] S310. If there are open loop points on both sides of the tie switch, or the tie switch is not in the closed position, or the number of open loop points in the feeder to which the tag information belongs is greater than 2, then an abnormal alarm will be triggered.

[0128] S311. If there is no open loop point in the loop structure, then the loop structure is determined to be in closed loop operation mode.

[0129] Among them, the closed-loop operation mode means that all feeders in the loop structure are electrically connected, so there is no need to determine a special operation mode.

[0130] The method described in this application achieves the effect of improving the efficiency and accuracy of scanning distribution networks in special operating modes.

[0131] Figure 4A schematic diagram of a scanning device based on the operation mode of a power distribution network is provided for this application, as shown below. Figure 4 As shown, the scanning device 40 based on the power distribution network operation mode provided in this embodiment includes: a response module 401, a first processing module 402, a second processing module 403, and an output module 404.

[0132] The response module 401 is used to obtain real-time topology data of the distribution network in response to a trigger signal; wherein, the real-time topology data includes the status information of the switchgear and the tag information of the feeder, the status information represents the electrical status of the switchgear, and the tag information represents the operation mark of the feeder;

[0133] The first processing module 402 is used to determine the open loop point information of the loop structure in the distribution network based on the real-time topology data of the distribution network; wherein, the loop structure is composed of at least two feeder lines connected by tie switches, and the open loop point information includes the number and location of the open loop points, and the open loop point represents the switching equipment used to disconnect the feeder.

[0134] The second processing module 403 is used to determine whether the loop structure is in a special operating mode based on the open / closed position status of the tie switch of the loop structure, the tag information and the open loop point information, and a preset judgment rule.

[0135] Output module 404 is used to output scan results when the loop structure is determined to be in a special operating mode; wherein, the scan results are used to describe the loop structure.

[0136] In an optional example, the first processing module 402 is further configured to determine tie switches in the distribution network; wherein, a tie switch characterizes a switching device used to connect or disconnect an electrical connection between different power sources;

[0137] Determine the loop structure in the distribution network based on the tie switches;

[0138] Based on real-time topology data of the distribution network, determine the open-loop point information of the loop structure in the distribution network.

[0139] In an optional example, the first processing module 402 is also configured to determine the target outgoing end of the feeder starting from the tie switch;

[0140] If there is a continuously conducting electrical path between the target outgoing terminals of at least two feedback lines, then the at least two feedback lines and the tie switch are identified as a loop structure in the distribution network.

[0141] In an optional example, the status information of the switching equipment includes the operating status, which indicates that the switching equipment is allowed to supply power; the first processing module 402 is also used to filter the switching equipment in the loop structure whose status information is operating, is not a tie switch, and is in the open position according to the real-time topology data of the distribution network, and to identify them as open loop points.

[0142] The location and total number of each open loop point are used to determine the open loop point information of the loop structure in the distribution network.

[0143] In an optional example, the second processing module 403 is further configured to determine whether the tag information is empty if it is determined that the contact switch is in the closed position.

[0144] If the listing information is empty, and the number of open loop points in the open loop point information is equal to the preset first threshold, then the loop structure is determined to be in a special operating mode.

[0145] In an optional example, the second processing module 403 is further configured to determine the feeder to which the listing information belongs, and to designate it as the target feeder, if the listing information is not empty.

[0146] Based on the open-loop point information, determine the number of open-loop points in the target feeder;

[0147] If the number of open-loop points in the target feeder is less than or equal to a preset second threshold, then the loop structure is determined to be in a special operating mode.

[0148] In an optional example, the scanning device 40 based on the distribution network operation mode further includes an alarm module, which is used to initiate an abnormal alarm if it is determined that the switch is in the open position, or that there is an open loop point in each feeder of the loop structure, or that the number of open loop points in the target feeder is greater than a preset third threshold; wherein, the abnormal alarm is used to prompt the dispatcher that there is a topological abnormality in the loop structure.

[0149] The scanning device based on the power distribution network operation mode provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0150] Figure 5 A schematic diagram of the structure of an electronic device provided in this application, such as... Figure 5 As shown, the electronic device 50 provided in this embodiment includes at least one processor 501 and a memory 502. Optionally, the electronic device 50 further includes a communication component 503. The processor 501, memory 502, and communication component 503 are connected via a bus 504.

[0151] In a specific implementation, at least one processor 501 executes computer execution instructions stored in memory 502, causing at least one processor 501 to perform the above-described method.

[0152] The specific implementation process of processor 501 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0153] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0154] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0155] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0156] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0157] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0158] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0159] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0160] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0161] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0162] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0163] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0164] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0165] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A scanning method based on the operation mode of a power distribution network, characterized in that, include: In response to a trigger signal, real-time topology data of the distribution network is acquired; wherein, the real-time topology data includes status information of switchgear and tag information of feeders, the status information representing the electrical status of switchgear and the tag information representing the operation mark of feeders; Based on the real-time topology data of the distribution network, the open-loop point information of the loop structure in the distribution network is determined; wherein, the loop structure is composed of at least two feeder lines connected by tie switches, and the open-loop point information includes the number and location of the open-loop points, and the open-loop points represent the switching equipment used to disconnect the feeder; Based on the on / off state of the contact switch of the loop structure, the tag information, and the open loop point information, and based on preset judgment rules, it is determined whether the loop structure is in a special operating mode. When it is determined that the loop structure is in a special operating mode, the scan result is output; wherein, the scan result is used to describe the loop structure.

2. The method according to claim 1, characterized in that, Based on the real-time topology data of the distribution network, the open-loop point information of the loop structure in the distribution network is determined, including: Identify the tie switches in the power distribution network; wherein, the tie switches characterize switching equipment used to connect or disconnect electrical connections between different power sources; The loop structure in the power distribution network is determined based on the interconnection switch; Based on the real-time topology data of the distribution network, the open-loop point information of the loop structure in the distribution network is determined.

3. The method according to claim 2, characterized in that, Determining the loop structure in the distribution network based on the interconnection switch includes: Determine the target output terminal of the feeder starting from the aforementioned interconnection switch; If there is a continuously conducting electrical path at the target outgoing terminals of at least two feedback lines, then the at least two feedback lines and the tie switch are determined as a loop structure in the power distribution network.

4. The method according to claim 1, characterized in that, The status information of the switching device includes the operating status, which indicates that the switching device is allowed to supply power. Based on the real-time topology data of the distribution network, the open-loop point information of the loop structure in the distribution network is determined, including: Based on the real-time topology data of the power distribution network, the switching equipment in the loop structure whose status information is the operating state, is not a tie switch, and whose open / closed position is open is selected as the open loop point; The location and total number of each open-loop point are determined as the open-loop point information of the loop structure in the power distribution network.

5. The method according to any one of claims 1-4, characterized in that, Based on the on / off state of the interconnecting switch of the loop structure, the tag information, and the open / close point information, and according to preset judgment rules, it is determined whether the loop structure is in a special operating mode, including: If the contact switch is determined to be in the closed position, then determine whether the tag information is empty. If the listing information is empty, and the number of open loop points in the open loop point information is equal to a preset first threshold, then the loop structure is determined to be in a special operating mode.

6. The method according to claim 5, characterized in that, Also includes: If the listing information is not empty, then the feeder to which the listing information belongs is determined to be the target feeder; Based on the open-loop point information, determine the number of open-loop points in the target feeder; If the number of open-loop points in the target feeder is less than or equal to a preset second threshold, then the loop structure is determined to be in a special operating mode.

7. The method according to claim 6, characterized in that, Also includes: If the switch is determined to be in the open / closed position, or if there is an open loop point in each feeder of the loop structure, or if the number of open loop points in the target feeder is greater than a preset third threshold, an anomaly alarm is initiated; wherein, the anomaly alarm is used to alert the dispatcher that there is a topological anomaly in the loop structure.

8. A scanning device based on the operation mode of a power distribution network, characterized in that, include: A response module is used to acquire real-time topology data of the distribution network in response to a trigger signal; wherein, the real-time topology data includes status information of switchgear and tag information of feeders, the status information representing the electrical status of switchgear and the tag information representing the operation mark of feeders; The first processing module is used to determine the open-loop point information of the loop structure in the distribution network based on the real-time topology data of the distribution network; wherein the loop structure is composed of at least two feeder lines connected by tie switches, and the open-loop point information includes the number and location of the open-loop points, and the open-loop points represent the switching equipment used to disconnect the feeder lines; The second processing module is used to determine whether the loop structure is in a special operating mode based on the open / closed position of the contact switch of the loop structure, the tag information, and the open loop point information, according to a preset judgment rule. The output module is used to output scan results when it is determined that the loop structure is in a special operating mode; wherein the scan results are used to describe the loop structure.

9. An electronic device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-7.

Images