A method, device and electronic device for generating a physical topology of a low-voltage power distribution area

Abstract

The present application provides a method, an apparatus, and an electronic device for generating a physical topology of a low-voltage power distribution substation area, which can efficiently and accurately generate the physical topology of the low-voltage substation area. The method includes: sequentially controlling a plurality of device nodes in the low-voltage power distribution substation area to send characteristic currents to a central control node, and determining the characteristic current reception information of the plurality of device nodes; determining the topological levels to which the plurality of device nodes belong according to the characteristic current reception information; determining the parent-child topological relationship between the plurality of device nodes in adjacent topological levels according to the characteristic current reception information; and generating a topology of the low-voltage power distribution substation area according to the topological levels of the plurality of device nodes and the parent-child topological relationship between the plurality of device nodes in adjacent topological levels. The apparatus includes a characteristic current control module, a topological level determination module, a topological relationship determination module, and a topology generation module. The electronic device is used to implement the method for generating the physical topology of the low-voltage power distribution substation area.

Description

Technical Field

[0001] One or more embodiments of the present application relate to the technical field of power system automation, and in particular, to a method, device, and electronic device for generating a physical topology of a low-voltage power distribution area. Background Art

[0002] With the rapid development of the power grid, higher requirements are put forward for the intelligence and refinement of the power distribution area, which is also the trend of the power grid development. At present, there are problems such as incomplete topological relationships and chaotic wiring in the low-voltage power distribution area. There are various existing topological recognition technologies and assessment methods for low-voltage power distribution areas, which can automatically recognize the topological model of the low-voltage power distribution area and upload the model to the master station by intelligent distribution transformer terminals. However, the current topological recognition methods are relatively inefficient. How to improve the efficiency of topological recognition is an urgent problem to be solved. Summary of the Invention

[0003] In view of this, the purpose of one or more embodiments of the present application is to propose a method, device, and electronic device for generating a physical topology of a low-voltage power distribution area, which can efficiently and accurately generate the physical topology of the low-voltage power distribution area.

[0004] Based on the above purpose, in the first aspect, an embodiment of the present application provides a method for generating a physical topology of a low-voltage power distribution area, including:

[0005] Controlling multiple device nodes in the low-voltage power distribution area to send characteristic currents to the central control node in sequence, and determining the characteristic current reception information of the multiple device nodes;

[0006] Determining the topological levels to which the multiple device nodes belong according to the characteristic current reception information;

[0007] Determining the parent-child topological relationships between multiple device nodes in adjacent topological levels according to the characteristic current reception information;

[0008] Generating a topology of the low-voltage power distribution area according to the topological levels of the multiple device nodes and the parent-child topological relationships between the multiple device nodes in adjacent topological levels.

[0009] Optionally, the characteristic current reception information includes the set of sending nodes corresponding to the characteristic currents received by the device nodes.

[0010] Optionally, the determining the topological levels to which the multiple device nodes belong according to the characteristic current reception information includes:

[0011] Starting from the first topological level, screening the device nodes belonging to the current topological level from the multiple device nodes according to the set of sending nodes.

[0012] Optionally, screening the device nodes belonging to the current topology level from multiple device nodes according to the set of sending nodes includes:

[0013] Selecting all the device nodes whose hierarchy attribution is not determined as pending nodes, and obtaining the set of sending nodes corresponding to the multiple pending nodes;

[0014] Traversing the multiple pending nodes, and comparing the current pending node with the sets of sending nodes of the multiple pending nodes;

[0015] In response to the sets of sending nodes of the multiple pending nodes not including the current pending node, determining that the current pending node belongs to the current topology level.

[0016] Optionally, determining the parent-child topology relationship between multiple device nodes in adjacent topology levels according to the received information of characteristic current includes:

[0017] Obtaining the sets of sending nodes corresponding to multiple device nodes in the upper level of the adjacent topology level;

[0018] Sequentially selecting multiple device nodes in the lower level of the adjacent topology level as pending child nodes;

[0019] Selecting, in the upper level, the device node whose set of sending nodes includes the pending child node as the parent node of the pending child node.

[0020] Optionally, after the method for generating the physical topology of the low-voltage distribution substation area screens the device nodes belonging to the current topology level from multiple device nodes according to the set of sending nodes, it further includes:

[0021] Comparing the level number of the current topology level with a preset level threshold;

[0022] In response to the level number of the current topology level being less than the preset level threshold, continuing to screen the device nodes belonging to the next topology level;

[0023] In response to the level number of the current topology level being not less than the preset level threshold, stopping the screening.

[0024] Optionally, generating the topology of the low-voltage distribution substation area according to the topology levels of the multiple device nodes and the parent-child topology relationship between multiple device nodes in adjacent topology levels includes:

[0025] Respectively setting the multiple device nodes at the corresponding topology levels;

[0026] Topologically connect the corresponding device nodes according to the parent - child topology relationship in the adjacent topology levels;

[0027] Use the central control node as the root node, and topologically connect the multiple device nodes in the first topology level to the central control node.

[0028] In a second aspect, an embodiment of the present application provides a low - voltage distribution sub - area physical topology generation device, including:

[0029] A characteristic current control module, configured to sequentially control multiple device nodes in a low - voltage distribution sub - area to send characteristic currents to a central control node, and determine the characteristic current reception information of the multiple device nodes;

[0030] A topology level determination module, configured to determine the topology levels to which the multiple device nodes belong according to the characteristic current reception information;

[0031] A topology relationship determination module, configured to determine the parent - child topology relationship between multiple device nodes in adjacent topology levels according to the characteristic current reception information; and

[0032] A topology generation module, configured to generate a low - voltage distribution sub - area topology according to the topology levels of the multiple device nodes and the parent - child topology relationship between the multiple device nodes in adjacent topology levels.

[0033] In a third aspect, an embodiment of the present application further provides an electronic device for generating a low - voltage distribution sub - area physical topology, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the method for generating a low - voltage distribution sub - area physical topology as described in the first aspect.

[0034] As can be seen from the above, the method, device, and electronic device for generating a low - voltage sub - area physical topology provided by one or more embodiments of the present application have the following beneficial technical effects:

[0035] (1) By adopting the method of centrally controlling all device nodes to send characteristic currents to uniformly obtain the characteristic current reception information of all device nodes, it is possible to avoid frequent notifications and traversal to obtain information, thereby reducing the network communication pressure in the low - voltage distribution sub - area.

[0036] (2) Based on the acquired characteristic current reception information, the priority relationship of any device node compared with other device nodes in the topological hierarchy can be accurately determined, so that the topological hierarchy to which multiple device nodes belong can be efficiently and accurately determined and arranged; between adjacent topological hierarchies, according to the characteristic current reception information, the sequence between adjacent nodes in the branch through which the characteristic current flows can also be determined, so as to accurately determine the parent-child topological relationship between the device nodes in adjacent topological hierarchies. Based on the topological hierarchy of the multiple device nodes and the parent-child topological relationship between the multiple device nodes in adjacent topological hierarchies, the physical topology of the low-voltage distribution area can be accurately generated. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in one or more embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one or more embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 Schematic diagram of a method for generating the physical topology of a low-voltage substation area provided by one or more embodiments of the present application;

[0039] Figure 2 Schematic diagram of a method for determining the topological hierarchy attribution in a method for generating the physical topology of a low-voltage substation area provided by one or more embodiments of the present application;

[0040] Figure 3 Schematic diagram of a method for determining the parent-child topological relationship in a method for generating the physical topology of a low-voltage substation area provided by one or more embodiments of the present application;

[0041] Figure 4 Schematic diagram of the structure of a device for generating the physical topology of a low-voltage substation area provided by one or more embodiments of the present application;

[0042] Figure 5 Schematic diagram of the structure of an electronic device for generating the physical topology of a low-voltage substation area provided by one or more embodiments of the present application. Detailed Embodiments

[0043] To make the purpose, technical solutions, and advantages of the present disclosure clearer and more understandable, the following further details the present disclosure in conjunction with specific embodiments and with reference to the accompanying drawings.

[0044] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present application should have the ordinary meaning understood by those of ordinary skill in the art to which the present disclosure pertains. The terms "first", "second" and similar words used in one or more embodiments of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0045] With the rapid development of the power grid, higher requirements are put forward for the intelligence and refinement of the substation area, which is also the trend of power grid development. At present, there are problems such as incomplete topological relationships and chaotic wiring in the low-voltage distribution substation area. There are various existing topological recognition technologies and their assessment methods for low-voltage distribution substation areas. The topological model of the low-voltage distribution substation area is automatically recognized, and the intelligent distribution transformer terminal uploads the model to the main station. However, the current topological recognition method is relatively inefficient. For example, in some related topological recognition methods, a device is selected to send a characteristic current, and then all the switch devices in the substation area are traversed, and then topological calculations are performed based on the sub-node information of the switch devices. This method requires frequent notifications to the device to send the characteristic current, and then traverses the reception situation of the characteristic current, occupying the HPLC communication bandwidth, affecting the meter reading work, and having low efficiency and long duration.

[0046] Aiming at the above problems, the purpose of the present application is to provide a method for generating the physical topology of a low-voltage distribution substation area, which centrally controls all device nodes to send characteristic currents and uniformly obtains the corresponding characteristic current reception information, and constructs the physical topology according to the characteristic current reception information, without frequent notifications and traversals, which can reduce the network communication pressure of the low-voltage substation area and improve the topological recognition efficiency.

[0047] The technical solution of the present application will be described below in conjunction with specific embodiments.

[0048] Based on the above invention purpose, on the one hand, an embodiment of the present application provides a method for generating the physical topology of a low-voltage distribution substation area.

[0049] As Figure 1 shown, a method for generating the physical topology of a low-voltage distribution substation area provided by one or more alternative embodiments of the present application includes:

[0050] S1: Sequentially control multiple device nodes in the low-voltage power distribution area to send characteristic currents to the central control node, and determine the characteristic current reception information of the multiple device nodes.

[0051] In the low-voltage power distribution area, when any one device node is controlled to send a characteristic current to the central control node, all other device nodes through which the characteristic current flows can receive the characteristic current sent by this device node and record the corresponding information with this device node as the current sending end. After sequentially controlling multiple device nodes to send characteristic currents, each device node will record the corresponding information of all current sending ends through which the sent characteristic current flows through this node to form the characteristic current reception information. The characteristic current reception information may include the characteristic information of the characteristic current, the sending time, sending order, etc. of multiple characteristic currents. In some optional embodiments, the characteristic current reception information includes the set of corresponding sending nodes of the characteristic current received by the device node, that is, the set composed of all current sending ends through which the sent characteristic current flows through the device node.

[0052] S2: Determine the topological levels to which the multiple device nodes belong according to the characteristic current reception information.

[0053] For any device node in the low-voltage power distribution area, according to the characteristic current reception information of multiple device nodes, it can be determined which device nodes' sent characteristic currents flow through this node, and it can also be determined which device nodes the characteristic current sent by this node flows through. For this node, the topological level of the sending node corresponding to the characteristic current it receives is lower than this node, and the topological level of the device nodes through which the characteristic current sent by this node flows is higher than this node. Therefore, the topological levels to which the multiple device nodes belong can be determined and arranged according to the characteristic current reception information.

[0054] S3: Determine the parent-child topological relationship between multiple device nodes in adjacent topological levels according to the characteristic current reception information.

[0055] There is a parent-child relationship between multiple device nodes in adjacent topological levels. And according to the characteristic current reception information of the multiple device nodes, the sequence of adjacent nodes in the branch through which the characteristic current flows can also be determined, so as to determine the parent-child relationship. Therefore, the parent-child topological relationship between multiple device nodes in adjacent topological levels can be determined according to the characteristic current reception information.

[0056] S4: Generate the topology of the low-voltage power distribution area according to the topological levels of the multiple device nodes and the parent-child topological relationship between multiple device nodes in adjacent topological levels.

[0057] In the low-voltage power distribution substation area, the physical topology of the low-voltage power distribution substation area can be constructed and generated node by node and layer by layer according to the topological levels to which multiple device nodes belong and the parent-child topological relationship between device nodes in adjacent topological levels, with the central control node as the root node.

[0058] The method for generating the physical topology of the low-voltage power distribution substation area adopts the method of centrally controlling all device nodes to send characteristic currents to uniformly obtain the characteristic current reception information of all device nodes, which can avoid frequent notifications and traversal to obtain information, thereby reducing the network communication pressure of the low-voltage substation area; according to the obtained characteristic current reception information, the priority relationship of any device node compared with other device nodes in the topological level can be accurately determined, so that the topological levels to which multiple device nodes belong can be determined and arranged efficiently and accurately; between adjacent topological levels, according to the characteristic current reception information, the sequence of adjacent nodes in the branch through which the characteristic current flows can be determined, so as to accurately determine the parent-child topological relationship between the device nodes in adjacent topological levels. Based on the topological levels of the multiple device nodes and the parent-child topological relationship between multiple device nodes in adjacent topological levels, the physical topology of the low-voltage power distribution substation area can be accurately generated.

[0059] In a method for generating the physical topology of a low-voltage power distribution substation area provided in one or more alternative embodiments of the present application, the determining the topological levels to which multiple device nodes belong according to the characteristic current reception information includes:

[0060] Starting from the first topological level, the device nodes belonging to the current topological level are screened from multiple device nodes according to the set of sending nodes.

[0061] The device nodes included can be determined layer by layer in the topological level order from top to bottom.

[0062] As Figure 2 shown, in a method for generating the physical topology of a low-voltage power distribution substation area provided in one or more alternative embodiments of the present application, the screening of the device nodes belonging to the current topological level from multiple device nodes according to the set of sending nodes includes:

[0063] S201: Select all device nodes whose layer belonging has not been determined as pending nodes, and obtain the set of sending nodes corresponding to the multiple pending nodes.

[0064] S202: Traverse the multiple pending nodes, and compare the current pending node with the set of sending nodes of the multiple pending nodes.

[0065] S203: If the set of sending nodes for multiple said pending nodes does not contain the current pending node, determine that the current pending node belongs to the current topology level.

[0066] Taking the k-th layer topology level as an example, no longer paying attention to the multiple device nodes determined in the previous (k - 1) layers, select all the remaining m k device nodes whose topology level ownership has not been determined as pending nodes, and obtain the corresponding set of sending nodes. Traverse the m k device nodes, and successively compare the m k device nodes with the corresponding multiple sets of sending nodes to determine whether the current pending node belongs to the k-th layer topology level. For example, when traversing to the n-th device node among the m k device nodes as the current node, the n-th device node can be compared with the m k sets of sending nodes corresponding to the m k device nodes. In some alternative embodiments, the n-th device node can be compared with the sets of sending nodes corresponding to the (m k - 1) device nodes other than the n-th device node. If the m k sets of sending nodes corresponding to the m k device nodes do not contain the n-th device node, it means that the characteristic current sent by the n-th device node does not flow through the (m k - 1) device nodes other than the n-th device node, and the topology level priority of the n-th device node is not lower than that of the other multiple device nodes. Thus, it can be determined that the n-th device node belongs to the k-th layer topology level. By traversing, all the device nodes belonging to the k-th layer topology level can be screened out from the m k device nodes.

[0067] In some alternative embodiments, after screening the device nodes belonging to the current topology level from multiple said device nodes according to the set of sending nodes, it further includes:

[0068] Compare the level number of the current topology level with a preset level threshold;

[0069] If the level number of the current topology level is less than the preset level threshold, continue to screen the device nodes belonging to the next topology level;

[0070] If the level number of the current topology level is not less than the preset level threshold, stop screening.

[0071] Similarly, the k-th layer of the topological hierarchy can be taken as an example for illustration. After traversing and screening out all the device nodes belonging to the k-th layer of the topological hierarchy, the layer number k of the current topological hierarchy is compared with the preset layer threshold K max If k < K max , the device nodes belonging to the next topological hierarchy (the (k + 1)-th layer) can be further screened. If k ≥ K max , the screening stops, and the k-th layer of the topological hierarchy is the last layer of the low-voltage distribution network area topology. The preset layer threshold K max can be flexibly set according to the actual circuit scale of the low-voltage distribution network area. In some alternative embodiments, the preset layer threshold K max can be set to 12.

[0072] As Figure 3 shown, in a method for generating the physical topology of a low-voltage distribution network area provided in one or more alternative embodiments of the present application, the determining the parent-child topological relationship between multiple device nodes in adjacent topological hierarchies according to the characteristic current reception information includes:

[0073] S301: Obtain the set of sending nodes corresponding to multiple device nodes in the upper level of the adjacent topological hierarchy.

[0074] S302: Select one by one multiple device nodes in the lower level of the adjacent topological hierarchy as the to-be-determined child nodes.

[0075] S303: Select, in the upper level, the device node whose set of sending nodes contains the to-be-determined child node as the parent node of the to-be-determined child node.

[0076] Taking the k-th layer of the topological hierarchy and the (k + 1)-th layer of the topological hierarchy as an example for illustration, as adjacent topological hierarchies, one or more device nodes in the (k + 1)-th layer of the topological hierarchy are the child nodes of a certain device node in the k-th layer of the topological hierarchy. The O k+1 device nodes in the (k + 1)-th layer of the topological hierarchy can be traversed, and the O k+1 device nodes are compared with the O k corresponding sets of sending nodes of the O k device nodes in the k-th layer of the topological hierarchy one by one. For example, when traversing to the q-th device node in the (k + 1)-th layer of the topological hierarchy as the to-be-determined child node, the q-th device node is compared with the O kCompare with the corresponding sending node sets of the said sending node sets. If the q-th device node in the (k + 1)-th layer topology level is included in the corresponding sending node set of the p-th device node in the k-th layer topology level, determine that the p-th device node in the k-th layer topology level is the parent node of the q-th device node in the (k + 1)-th layer topology level. Traverse the (k + 1)-th layer topology level in this way, and the parent nodes of all device nodes in the (k + 1)-th layer topology level can be determined in the k-th layer topology level.

[0077] In a method for generating a physical topology of a low-voltage distribution substation area provided in one or more alternative embodiments of the present application, the generating the topology of the low-voltage distribution substation area according to the topology levels of the plurality of device nodes and the parent-child topology relationships between the plurality of device nodes in adjacent topology levels includes:

[0078] Respectively set the plurality of device nodes in their corresponding topology levels.

[0079] In the adjacent topology levels, topologically connect the corresponding device nodes according to the parent-child topology relationships.

[0080] Take the central control node as the root node, and topologically connect the plurality of device nodes in the first topology level with the central control node.

[0081] In some alternative embodiments, according to the topology levels of the plurality of device nodes and the parent-child topology relationships between the plurality of device nodes in adjacent topology levels, the plurality of device nodes can be arranged and set in their respective corresponding topology levels respectively, and the device nodes with parent-child topology relationships in adjacent topology levels are connected. And take the central control node as the root node, that is, the central control node is the parent node of the plurality of device nodes in the first topology level.

[0082] It should be noted that the method of the embodiments of the present disclosure can be executed by a single device, such as a computer or a server, etc. The method of this embodiment can also be applied to a distributed scenario, and completed by the cooperation of multiple devices. In the case of such a distributed scenario, one of the multiple devices can only execute one or more steps of the method of the embodiments of the present disclosure, and these multiple devices will interact with each other to complete the said method.

[0083] It should be noted that some embodiments of the present disclosure have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the above embodiments and still achieve the desired results. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0084] Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present disclosure further provides a physical topology generation device for a low-voltage distribution network area.

[0085] Referring to Figure 4 , the physical topology generation device for a low-voltage distribution network area includes:

[0086] A characteristic current control module 401, configured to sequentially control a plurality of device nodes in the low-voltage distribution network area to send characteristic currents to a central control node, and determine the characteristic current reception information of the plurality of device nodes;

[0087] A topology level determination module 402, configured to determine the topology levels to which the plurality of device nodes belong according to the characteristic current reception information;

[0088] A topology relationship determination module 403, configured to determine the parent-child topology relationship between the plurality of device nodes in adjacent topology levels according to the characteristic current reception information; and

[0089] A topology generation module 404, configured to generate a topology of the low-voltage distribution network area according to the topology levels of the plurality of device nodes and the parent-child topology relationship between the plurality of device nodes in adjacent topology levels.

[0090] For the convenience of description, when describing the above device, it is divided into various modules according to functions and described separately. Of course, when implementing the present disclosure, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0091] The device of the above embodiment is used to implement the corresponding physical topology generation method for the low-voltage distribution network area in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be elaborated here.

[0092] Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present disclosure further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the physical topology generation method for the low-voltage distribution network area described in any of the above embodiments when executing the program.

[0093] Figure 5 FIG. 1 shows a more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment. The device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. Among them, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are communicatively connected to each other inside the device through the bus 1050.

[0094] The processor 1010 may be implemented in a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, etc., and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0095] The memory 1020 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When implementing the technical solutions provided in the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0096] The input / output interface 1030 is used to connect to an input / output module to implement information input and output. The input / output module may be configured as a component in the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Among them, the input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0097] The communication interface 1040 is used to connect to a communication module (not shown in the figure) to implement communication interaction between this device and other devices. Among them, the communication module may implement communication in a wired manner (such as USB, network cable, etc.) or in a wireless manner (such as mobile network, WIFI, Bluetooth, etc.).

[0098] The bus 1050 includes a path for transmitting information between various components of the device (such as the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0099] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device may also only include the components necessary to implement the solution of the embodiments of this specification, and do not necessarily include all the components shown in the figure.

[0100] The electronic device of the above embodiment is used to implement the corresponding low-voltage distribution network physical topology generation method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be elaborated here.

[0101] Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present disclosure also provides a non-transitory computer-readable storage medium. The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the low-voltage distribution network physical topology generation method described in any of the foregoing embodiments.

[0102] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tapes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible by a computing device.

[0103] The computer instructions stored in the storage medium of the above embodiment are used to cause the computer to execute the low-voltage distribution network physical topology generation method described in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be elaborated here.

[0104] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the concept of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of brevity.

[0105] In addition, for simplicity of explanation and discussion, and so as not to make one or more embodiments of the present application difficult to understand, well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Further, the devices may be shown in block diagram form in order to avoid making one or more embodiments of the present application difficult to understand, and this also takes into account the fact that details regarding the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present application are to be implemented (i.e., these details should be entirely within the understanding of those skilled in the art). In cases where specific details (such as circuits) are set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of the present application may be implemented without these specific details or with variations of these specific details. Accordingly, these descriptions should be regarded as illustrative rather than restrictive.

[0106] Although the present disclosure has been described in connection with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. For example, other memory architectures (such as dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0107] One or more embodiments of the present application are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of the present application shall be included within the scope of protection of the present disclosure.

Claims

1. A method for generating the physical topology of a low-voltage distribution substation, characterized in that, Including: Controlling multiple device nodes in a low-voltage distribution substation area to send characteristic currents to a central control node in sequence, and determining the characteristic current reception information of the multiple device nodes; Determining the topological levels to which the multiple device nodes belong according to the characteristic current reception information; Determining the parent-child topological relationship between multiple device nodes in adjacent topological levels according to the characteristic current reception information; Generating a low-voltage distribution substation area topology according to the topological levels of the multiple device nodes and the parent-child topological relationship between the multiple device nodes in adjacent topological levels; The determining the topological levels to which the multiple device nodes belong according to the characteristic current reception information includes: Starting from the first topological level, screening the device nodes belonging to the current topological level from the multiple device nodes according to the set of sending nodes; The screening the device nodes belonging to the current topological level from the multiple device nodes according to the set of sending nodes includes: Selecting all the device nodes whose level belonging is not determined as pending nodes, and obtaining the set of sending nodes corresponding to the multiple pending nodes; Traversing the multiple pending nodes, and comparing the current pending node with the set of sending nodes of the multiple pending nodes; In response to the set of sending nodes of the multiple pending nodes not including the current pending node, determining that the current pending node belongs to the current topological level.

2. The method according to claim 1, characterized in that, The characteristic current reception information includes the set of sending nodes corresponding to the characteristic current received by the device node.

3. The method according to claim 2, wherein The determining the parent-child topological relationship between multiple device nodes in adjacent topological levels according to the characteristic current reception information includes: Obtaining the set of sending nodes corresponding to multiple device nodes in the upper level of the adjacent topological level; Sequentially selecting multiple device nodes in the lower level of the adjacent topological level as pending child nodes; Selecting, in the upper level, the device node whose set of sending nodes includes the pending child node as the parent node of the pending child node.

4. The method according to claim 1, wherein After screening the device nodes belonging to the current topological level from the multiple device nodes according to the set of sending nodes, it further includes: Comparing the level number of the current topological level with a preset level threshold; In response to the level number of the current topological level being less than the preset level threshold, continuing to screen the device nodes belonging to the next topological level; In response to the level number of the current topological level being not less than the preset level threshold, stopping the screening.

5. The method according to claim 1, wherein The generating a low-voltage distribution substation area topology according to the topological levels of the multiple device nodes and the parent-child topological relationship between the multiple device nodes in adjacent topological levels includes: Respectively setting the multiple device nodes at the corresponding topological levels; Topologically connecting the corresponding device nodes according to the parent-child topological relationship in the adjacent topological levels; Taking the central control node as the root node, and topologically connecting the multiple device nodes in the first topological level with the central control node.

6. A physical topology generation device for a low-voltage distribution substation, characterized in that, Performing low-voltage distribution substation area physical topology generation based on the method according to any one of claims 1 to 5 includes: A characteristic current control module, configured to sequentially control multiple device nodes in a low-voltage power distribution area to send characteristic currents to a central control node, and determine characteristic current reception information of the multiple device nodes; A topology level determination module, configured to determine topology levels to which the multiple device nodes belong according to the characteristic current reception information; A topology relationship determination module, configured to determine parent-child topology relationships between the multiple device nodes in adjacent topology levels according to the characteristic current reception information; and A topology generation module, configured to generate a low-voltage power distribution area topology according to the topology levels of the multiple device nodes and the parent-child topology relationships between the multiple device nodes in adjacent topology levels.

7. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, When the processor executes the program, the method according to any one of claims 1 to 5 is implemented.

Images