Feeder power supply section splitting and load calculation method, system, medium and processor

Abstract

The present invention discloses a feeder power supply section splitting and load calculation method, system, medium and processor. The method comprises: obtaining a single feeder XML model file of a selected feeder provided by a GIS system; performing topological analysis on the single feeder XML model file, taking the substation outlet switch as the root node and the distribution transformer and the contact switch as the leaf nodes, generating a basic feeder topology tree corresponding to the selected feeder; performing power supply section splitting on the grid of the selected feeder according to different switch types, and obtaining corresponding power supply sections with restoration capability; duplicating the basic feeder topology tree according to the corresponding power supply sections with restoration capability, and generating corresponding sub-feeder topology trees; performing load calculation according to the sub-feeder topology trees; the time complexity of the processing method is low, and the high efficiency of load calculation is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of power grids, and in particular relates to a feeder power supply section splitting and load calculation method, system, medium and processor. Background Art

[0002] With the in-depth advancement of the construction of new power systems, the scale of distribution networks has continued to grow, and the types of power equipment have increased. Urban distribution networks have gradually entered the era of distribution automation and self-healing. In order to ensure the safe and stable operation of the power grid and improve the reliability of power supply, it is necessary to analyze the distribution network structure and distribution automation level, so as to objectively and quantitatively evaluate the power supply safety capacity of the distribution network. The traditional feeder grid analysis and calculation method requires full calculation of a large number of feeder topology relationships for each analysis. Faced with the current complex urban distribution network, it has the limitations of complex processing methods and low calculation efficiency. Summary of the invention

[0003] The main purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide a feeder power supply section splitting and load calculation method, system, storage medium and processor.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] In one aspect of the present invention, a method for splitting feeder power supply sections and calculating loads is provided, comprising the following steps:

[0006] Obtain the single feeder XML model file of the selected feeder provided by the GIS system;

[0007] Performing topological analysis on the single feeder xml model file, taking the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, generating a basic feeder topology tree corresponding to the selected feeder;

[0008] The grid of the selected feeder is divided into power supply sections according to different switch types to obtain corresponding power supply sections with restoration capabilities;

[0009] The basic feeder topology tree is copied according to the recovery capability power supply section to generate a corresponding sub-feeder topology tree;

[0010] Load calculation is performed according to the sub-feeder topology tree.

[0011] As a preferred technical solution, the method of obtaining the single feeder XML model file of the selected feeder provided by the GIS system includes:

[0012] Constructing a data interface of the GIS system, and obtaining a power grid data model provided by the GIS system through the data interface;

[0013] Perform feeder group analysis on the power grid data model, and assign a corresponding feeder ID to each feeder, wherein the feeder ID is determined according to a substation outgoing line switch associated with the corresponding feeder;

[0014] The single feeder xml model file of the selected feeder provided by the GIS system is obtained through the pre-packaged feeder xml analysis class; the single feeder xml model file includes the complete topology information of the feeder.

[0015] As a preferred technical solution, the single feeder xml model file is subjected to topological analysis, with the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, to generate a basic feeder topology tree corresponding to the selected feeder, including:

[0016] The single feeder xml model file is mapped, and a basic feeder topology tree is generated based on the complete topology information, with the substation outlet switch as the root node and the distribution transformer and the connecting switch as the leaf nodes; in the structure of the basic feeder topology tree, all switches and circuit breakers in the path from each leaf node to the root node are retained.

[0017] As a preferred technical solution, the grid of the selected feeder is split into power supply sections according to different switch types to obtain corresponding power supply sections with recovery capability, including:

[0018] When calculating the second-level, minute-level, or hour-level restoration capacity of the distribution network, the feeder grid is segmented according to different switch types;

[0019] The grid of the selected feeder is divided into power supply sections according to the automatic switches, contact switches and section switches to obtain the corresponding power supply sections with restoration capability.

[0020] As a preferred technical solution, the basic feeder topology tree is copied according to the power supply section with the recovery capability to generate a corresponding sub-feeder topology tree, including:

[0021] Determine the corresponding network topology relationship according to power supply sections with different recovery capabilities;

[0022] According to the network topology relationship, a selection is made from the basic feeder topology tree to generate a corresponding sub-feeder topology tree.

[0023] As a preferred technical solution, the load calculation according to the sub-feeder topology tree includes:

[0024] According to the corresponding devices in the sub-feeder topology tree, the load value corresponding to each recovery capability power supply section is calculated.

[0025] As a preferred technical solution, the load calculation according to the sub-feeder topology tree includes:

[0026] The load inflow switch and the load outflow switch in the sub-feeder topology tree are determined, and the load difference between the load inflow switch and the load outflow switch is used as the load value of the corresponding restoration capability power supply section.

[0027] Another aspect of the present invention provides a feeder power supply section splitting and load calculation system, comprising:

[0028] A feeder model acquisition module is used to obtain a single feeder XML model file of a selected feeder provided by a GIS system;

[0029] A topology tree generation module is used to perform topology analysis on the single feeder xml model file, taking the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, and generate a basic feeder topology tree corresponding to the selected feeder;

[0030] A power supply section splitting module is used to split the power supply section of the selected feeder grid according to different switch types to obtain the corresponding power supply section with restoration capability;

[0031] A topology tree replication module, used for replicating the basic feeder topology tree according to the recovery power supply section to generate a corresponding sub-feeder topology tree;

[0032] A load calculation module is used to perform load calculation according to the sub-feeder topology tree.

[0033] Another aspect of the present invention provides a processor configured to execute the above-mentioned feeder power supply section splitting and load calculation method.

[0034] Another aspect of the present invention provides a machine-readable storage medium having instructions stored thereon, which, when executed by a processor, configure the processor to execute the above-mentioned feeder power supply section splitting and load calculation method.

[0035] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0036] (1) The feeder power supply section splitting and load calculation method of the present invention obtains a single feeder XML model file of the selected feeder provided by the GIS system; performs topological analysis on the single feeder XML model file, takes the substation outlet switch as the root node and the distribution transformer and the connecting switch as the leaf nodes, and generates a basic feeder topology tree corresponding to the selected feeder; splits the power supply section of the selected feeder grid according to different switch types to obtain corresponding recovery power supply sections; copies the basic feeder topology tree according to the recovery power supply sections to generate corresponding sub-feeder topology trees; and performs load calculation according to the sub-feeder topology trees; the processing method has low time complexity, thereby ensuring high efficiency of load calculation.

[0037] (2) The method of the present invention can quickly copy a new "feeder topology tree" from the "basic feeder topology tree" for calculation according to certain rules when splitting the power supply sections at the second level, minute level, or hour level. This processing method has a low time complexity and can ensure high efficiency of calculation.

[0038] (3) The present invention uses the station outgoing line switch as the "root node" and the distribution transformer, contact switch, etc. as the "leaf node" to establish a "basic feeder topology tree". In the "basic feeder topology tree" structure, all switches and switch devices are retained on each path from the "leaf node" to the "root node". The time complexity of the processing method is low, ensuring the high efficiency of load calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0040] Figure 1 It is a flow chart of a feeder power supply section splitting and load calculation method according to an embodiment of the present invention;

[0041] Figure 2 is a structural block diagram of a feeder power supply section splitting and load calculation system according to an embodiment of the present invention;

[0042] Figure 3 It is a diagram of the internal structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0044] Example

[0045] like Figure 1 As shown, in one embodiment of the present invention, a feeder power supply section splitting and load calculation method is provided, comprising the following steps:

[0046] Step 101, obtaining a single feeder XML model file of the selected feeder provided by the GIS system;

[0047] Step 102, performing topological analysis on the single feeder xml model file, taking the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, and generating a basic feeder topology tree corresponding to the selected feeder;

[0048] Step 103, splitting the grid of the selected feeder into power supply sections according to different switch types to obtain corresponding power supply sections with restoration capabilities;

[0049] Step 104, duplicating the basic feeder topology tree according to the recovery capability power supply section to generate a corresponding sub-feeder topology tree;

[0050] Step 105: perform load calculation according to the sub-feeder topology tree.

[0051] Specifically, the present invention obtains a single feeder XML model file of a selected feeder provided by a GIS system. In practical applications, when grid analysis is performed on a feeder basis, each analysis uses a local topology to analyze a single feeder, rather than a global topology for the entire distribution network, thereby greatly improving the analysis efficiency, meeting the real-time requirements, greatly improving the efficiency, and shortening the processing time. The single feeder xml model file provided by the GIS system describes the complete topology information of a feeder, so the most convenient way to perform grid analysis on a feeder is to perform calculations directly based on the xml file of a feeder. In practical applications, since the scale of feeders in distribution networks of large cities or even megacities is very large, the present invention can encapsulate an efficient feeder xml analysis class, including: establishing efficient parameter and topology data structures, encapsulating topological functions such as power supply paths and power supply ranges; thereby facilitating the extraction of feeder data from the GIS system, and then performing grid analysis.

[0052] Then, the single feeder xml model file is topologically analyzed, and the basic feeder topology tree corresponding to the selected feeder is generated with the substation outlet switch as the root node and the distribution transformer and the contact switch as the leaf node. That is, all the equipment on the selected feeder is traversed according to the electrical connection relationship, including various types of switches. In this way, the process of generating a topological tree for the selected feeder is: regardless of the state of the switch / knife switch, the divided contact switch or the specified switch is traversed as the boundary to generate a topological tree containing busbars, switches, knife switches, loads, distribution transformers and other equipment; in the topological process, the substation outlet busbar is the root node, and the distribution transformer and the contact switch are leaf nodes. Similarly, the corresponding topological tree can be generated for all feeders of the distribution network. Then, the grid of the selected feeder is split into power supply sections according to different switch types to obtain the corresponding recovery capacity power supply sections. This is because when calculating the recovery capacity of the distribution network in seconds, minutes, and hours, the grid of the feeder needs to be segmented according to different switch types. When splitting power supply sections at the second, minute, or hour level, the present invention quickly copies a new sub-feeder topology tree from the basic feeder topology tree according to certain rules for calculation. This processing method has a low time complexity and can ensure high efficiency of calculation.

[0053] In one embodiment, the step of obtaining a single feeder XML model file of a selected feeder provided by a GIS system includes:

[0054] Constructing a data interface of the GIS system, and obtaining a power grid data model provided by the GIS system through the data interface;

[0055] Perform feeder group analysis on the power grid data model, and assign a corresponding feeder ID to each feeder, wherein the feeder ID is determined according to a substation outgoing line switch associated with the corresponding feeder;

[0056] The single feeder xml model file of the selected feeder provided by the GIS system is obtained through the pre-packaged feeder xml analysis class; the single feeder xml model file includes the complete topology information of the feeder.

[0057] In actual application, a data interface for docking with the GIS system is constructed to obtain power grid data. The GIS system can generate an XML file of the single-line diagram of the distribution network line. Generally speaking, the lines with direct or indirect connections between the distribution network lines are classified as a feeder group. The super-large urban distribution network must have a huge feeder scale. Therefore, the present invention pre-assigns corresponding feeder IDs to each feeder, and can also name them accordingly. The distribution network feeder CIM model maps to obtain a tree topological structure, which can be uniquely named or defined using the substation outlet switch in the CIM specification. In actual application, the feeder includes the number of distribution transformers and users of the feeder and segmented power supply. Starting from any device on the feeder single-line diagram, its path to the outlet switch can be traced. The present invention encapsulates an efficient feeder xml analysis class, including: establishing efficient parameter and topological data structures, encapsulating topological functions such as power supply paths and power supply ranges; thereby, the XML file of a single feeder can be obtained from the GIS system. Regarding the selected feeder, the corresponding single feeder xml model file can be determined according to the corresponding feeder ID. The single feeder xml model file provided by the GIS system describes the complete topological information of a feeder. That is, the feeder-related devices and device connection relationships can be determined based on the complete topology information, and a tree-like topology structure can be mapped, such as distribution transformers, automation switches and contact switches on the feeder.

[0058] In one embodiment, the single feeder xml model file is subjected to topological analysis, with the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, to generate a basic feeder topology tree corresponding to the selected feeder, including:

[0059] The single feeder xml model file is mapped, and a basic feeder topology tree is generated based on the complete topology information, with the substation outlet switch as the root node and the distribution transformer and the connecting switch as the leaf nodes; in the structure of the basic feeder topology tree, all switches and circuit breakers in the path from each leaf node to the root node are retained.

[0060] Specifically, a basic feeder topology tree is established with the feeder station outgoing line switch as the root node and the distribution transformer, tie switch, etc. as the leaf nodes. In the basic feeder topology tree structure, all switches and circuit breakers are retained on each path from the leaf node to the root node.

[0061] In one embodiment, the power supply section division of the grid of the selected feeder according to different switch types to obtain corresponding power supply sections with restoration capability includes:

[0062] When calculating the second-level, minute-level, or hour-level restoration capacity of the distribution network, the feeder grid is segmented according to different switch types;

[0063] The grid of the selected feeder is divided into power supply sections according to the automatic switches, contact switches and section switches to obtain the corresponding power supply sections with restoration capability.

[0064] Specifically, the various restoration time effects (seconds, minutes, hours) of the main distribution network are calculated. That is, when calculating the second-level, minute-level, or hour-level restoration capacity of the distribution network, the selected feeder is split into multiple restoration capacity power supply sections according to the automatic switch, tie switch, and section switch. In the case of seconds, minutes, or hours, the multiple restoration capacity power supply sections corresponding to the same feeder are different.

[0065] In one embodiment, the step of duplicating the basic feeder topology tree according to the power supply section with the recovery capability to generate a corresponding sub-feeder topology tree includes:

[0066] Determine the corresponding network topology relationship according to power supply sections with different recovery capabilities;

[0067] According to the network topology relationship, a selection is made from the basic feeder topology tree to generate a corresponding sub-feeder topology tree.

[0068] Specifically, the present invention can select and copy from the basic feeder topology tree according to the network topology relationship corresponding to the power supply sections with different recovery capabilities, so as to generate a new sub-feeder topology tree for load calculation. This processing method has a low time complexity and can ensure the high efficiency of calculation.

[0069] In one embodiment, the performing load calculation according to the sub-feeder topology tree includes:

[0070] According to the corresponding devices in the sub-feeder topology tree, the load value corresponding to each recovery capability power supply section is calculated.

[0071] Specifically, the calculation of load values ​​is an existing technology. As long as the corresponding devices in the sub-feeder topology tree are determined, a variety of existing load value calculation methods can be used to obtain the corresponding load values.

[0072] In one embodiment, the performing load calculation according to the sub-feeder topology tree includes:

[0073] The load inflow switch and the load outflow switch in the sub-feeder topology tree are determined, and the load difference between the load inflow switch and the load outflow switch is used as the load value of the corresponding restoration capability power supply section.

[0074] Specifically, this is to calculate the corresponding real-time load value, so as to facilitate the subsequent main distribution network analysis.

[0075] like Figure 2As shown, the present invention also provides a feeder power supply section splitting and load calculation system, comprising:

[0076] Feeder model acquisition module 201, used to obtain a single feeder XML model file of a selected feeder provided by a GIS system;

[0077] A topology tree generation module 202 is used to perform topology analysis on the single feeder xml model file, and generate a basic feeder topology tree corresponding to the selected feeder with the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes;

[0078] A power supply section splitting module 203 is used to split the power supply sections of the selected feeder grid according to different switch types to obtain corresponding power supply sections with restoration capability;

[0079] A topology tree duplication module 204, configured to duplicate the basic feeder topology tree according to the recovery capability power supply section to generate a corresponding sub-feeder topology tree;

[0080] The load calculation module 205 is used to perform load calculation according to the sub-feeder topology tree.

[0081] For the specific definition of the feeder power supply section splitting and load calculation system, please refer to the definition of the feeder power supply section splitting and load calculation method mentioned above, which will not be repeated here. Each module or unit in the above feeder power supply section splitting and load calculation system can be implemented in whole or in part by software, hardware and a combination thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0082] An embodiment of the present invention provides a processor, which is used to run a program, wherein the program executes the above-mentioned feeder power supply section splitting and load calculation method when running.

[0083] An embodiment of the present invention provides a storage medium on which a program is stored. When the program is executed by a processor, the above-mentioned feeder power supply section splitting and load calculation method is implemented.

[0084] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 3As shown. The computer device includes a processor A01, a network interface A02, a display screen A04, an input device A05 and a memory (not shown in the figure) connected through a system bus. Among them, the processor A01 of the computer device is used to provide computing and control capabilities. The memory of the computer device includes an internal memory A03 and a non-volatile storage medium A06. The non-volatile storage medium A06 stores an operating system B01 and a computer program B02. The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 in the non-volatile storage medium A06. The network interface A02 of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor A01, a feeder power supply section splitting and load calculation method is implemented. The display screen A04 of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device A05 of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0085] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0086] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, the following steps are implemented:

[0087] Obtain the single feeder XML model file of the selected feeder provided by the GIS system;

[0088] Performing topological analysis on the single feeder xml model file, taking the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, generating a basic feeder topology tree corresponding to the selected feeder;

[0089] The grid of the selected feeder is divided into power supply sections according to different switch types to obtain corresponding power supply sections with restoration capabilities;

[0090] The basic feeder topology tree is copied according to the recovery capability power supply section to generate a corresponding sub-feeder topology tree;

[0091] Load calculation is performed according to the sub-feeder topology tree.

[0092] In one embodiment, the step of obtaining a single feeder XML model file of a selected feeder provided by a GIS system includes:

[0093] Constructing a data interface of the GIS system, and obtaining a power grid data model provided by the GIS system through the data interface;

[0094] Perform feeder group analysis on the power grid data model, and assign a corresponding feeder ID to each feeder, wherein the feeder ID is determined according to a substation outgoing line switch associated with the corresponding feeder;

[0095] The single feeder xml model file of the selected feeder provided by the GIS system is obtained through the pre-packaged feeder xml analysis class; the single feeder xml model file includes the complete topology information of the feeder.

[0096] In one embodiment, the single feeder xml model file is subjected to topological analysis, with the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, to generate a basic feeder topology tree corresponding to the selected feeder, including:

[0097] The single feeder xml model file is mapped, and a basic feeder topology tree is generated based on the complete topology information, with the substation outlet switch as the root node and the distribution transformer and the connecting switch as the leaf nodes; in the structure of the basic feeder topology tree, all switches and circuit breakers in the path from each leaf node to the root node are retained.

[0098] In one embodiment, the power supply section division of the grid of the selected feeder according to different switch types to obtain corresponding power supply sections with restoration capability includes:

[0099] When calculating the second-level, minute-level, or hour-level restoration capacity of the distribution network, the feeder grid is segmented according to different switch types;

[0100] The grid of the selected feeder is split into power supply sections according to the automatic switches, contact switches and section switches to obtain the corresponding power supply sections with restoration capabilities.

[0101] In one embodiment, the step of duplicating the basic feeder topology tree according to the power supply section with the recovery capability to generate a corresponding sub-feeder topology tree includes:

[0102] Determine the corresponding network topology relationship according to power supply sections with different recovery capabilities;

[0103] According to the network topology relationship, a selection is made from the basic feeder topology tree to generate a corresponding sub-feeder topology tree.

[0104] In one embodiment, the performing load calculation according to the sub-feeder topology tree includes:

[0105] According to the corresponding devices in the sub-feeder topology tree, the load value corresponding to each recovery capability power supply section is calculated.

[0106] In one embodiment, the performing load calculation according to the sub-feeder topology tree includes:

[0107] The load inflow switch and the load outflow switch in the sub-feeder topology tree are determined, and the load difference between the load inflow switch and the load outflow switch is used as the load value of the corresponding restoration capability power supply section.

[0108] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0109] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0110] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0111] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1A step that specifies a function in one or more boxes.

[0112] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0113] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0114] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. 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 technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0115] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

Claims

1. A feeder power supply section splitting and load calculation method, characterized in that: The steps include: Obtain the single feeder xml model file of the selected feeder provided by the GIS system; Performing topological analysis on the single feeder xml model file, taking the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, generating a basic feeder topology tree corresponding to the selected feeder; The grid of the selected feeder is divided into power supply sections according to different switch types to obtain corresponding power supply sections with restoration capabilities; The basic feeder topology tree is copied according to the recovery capability power supply section to generate a corresponding sub-feeder topology tree; Load calculation is performed according to the sub-feeder topology tree.

2. The feeder power supply section splitting and load calculation method according to claim 1 is characterized in that: The step of obtaining the single feeder xml model file of the selected feeder provided by the GIS system includes: Constructing a data interface of the GIS system, and obtaining a power grid data model provided by the GIS system through the data interface; Perform feeder group analysis on the power grid data model, and assign a corresponding feeder ID to each feeder, wherein the feeder ID is determined according to a substation outgoing line switch associated with the corresponding feeder; The single feeder xml model file of the selected feeder provided by the GIS system is obtained through the pre-packaged feeder xml analysis class; the single feeder xml model file includes the complete topology information of the feeder.

3. The feeder power supply section splitting and load calculation method according to claim 1 is characterized in that: The topological analysis of the single feeder xml model file is performed, with the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, to generate a basic feeder topology tree corresponding to the selected feeder, including: The single feeder xml model file is mapped, and a basic feeder topology tree with the substation outlet switch as the root node and the distribution transformer and the connecting switch as the leaf nodes is generated according to the complete topology information of the feeder in the single feeder xml model file; in the structure of the basic feeder topology tree, all switches and circuit breakers in the path from each leaf node to the root node are retained.

4. The feeder power supply section splitting and load calculation method according to claim 1 is characterized in that: The power supply section division of the grid of the selected feeder according to different switch types to obtain corresponding power supply sections with restoration capability includes: When calculating the second-level, minute-level, or hour-level restoration capacity of the distribution network, the feeder grid is segmented according to different switch types; The grid of the selected feeder is divided into power supply sections according to the automatic switches, contact switches and section switches to obtain the corresponding power supply sections with restoration capability.

5. The feeder power supply section splitting and load calculation method according to claim 4 is characterized in that: The step of duplicating the basic feeder topology tree according to the power supply section with the recovery capability to generate a corresponding sub-feeder topology tree includes: Determine the corresponding network topology relationship according to power supply sections with different recovery capabilities; According to the network topology relationship, a selection is made from the basic feeder topology tree to generate a corresponding sub-feeder topology tree.

6. The feeder power supply section splitting and load calculation method according to claim 1 is characterized in that: The performing load calculation according to the sub-feeder topology tree includes: According to the corresponding devices in the sub-feeder topology tree, the load value corresponding to each recovery capability power supply section is calculated.

7. The feeder power supply section splitting and load calculation method according to claim 1 is characterized in that: The performing load calculation according to the sub-feeder topology tree includes: The load inflow switch and the load outflow switch in the sub-feeder topology tree are determined, and the load difference between the load inflow switch and the load outflow switch is used as the load value of the corresponding restoration capability power supply section.

8. A feeder power supply section splitting and load calculation system, characterized in that: include: A feeder model acquisition module is used to obtain a single feeder xml model file of a selected feeder provided by a GIS system; A topology tree generation module is used to perform topology analysis on the single feeder xml model file, taking the substation outlet switch as the root node and the distribution transformer and the tie switch as the leaf nodes, and generate a basic feeder topology tree corresponding to the selected feeder; A power supply section splitting module is used to split the power supply section of the selected feeder grid according to different switch types to obtain the corresponding power supply section with restoration capability; A topology tree replication module, used for replicating the basic feeder topology tree according to the recovery power supply section to generate a corresponding sub-feeder topology tree; A load calculation module is used to perform load calculation according to the sub-feeder topology tree.

9. A processor, characterized in that: The method is configured to execute the feeder power supply section splitting and load calculation method according to any one of claims 1 to 7.

10. A machine-readable storage medium having instructions stored thereon, characterized in that: When the instruction is executed by a processor, the processor is configured to execute the feeder power supply section splitting and load calculation method according to any one of claims 1 to 7.

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