Load adjusting method and device in distribution network planning, medium and electronic equipment

Abstract

The invention discloses a load adjusting method and device in distribution network planning, a medium and electronic equipment, and the method comprises the steps: determining a first transformer area and a second transformer area which need to be subjected to load adjustment according to the transformer area load data and transformer area position information of at least two candidate transformer areas in a to-be-planned area; based on the distribution line information of the power users in the first transformer area, the transformer area position information of the second transformer area, the user load data of the power users in the first transformer area, the transformer area load data of the first transformer area and the transformer area load data of the second transformer area, the power distribution line information of the power users in the first transformer area; target users capable of being planned to the second transformer area are determined in the power users of the first transformer area; and planning the target user from the first transformer area to the second transformer area based on the distribution line information of the target user and the transformer area position information of the second transformer area. According to the technical scheme, the load adjusting efficiency and the load adjusting accuracy can be improved, and the labor cost in the load adjusting process is reduced.

Description

Technical Field

[0001] This application relates to the field of load regulation in distribution network planning. Specifically, this application relates to a load regulation method, device, medium, and electronic device in distribution network planning. Background Art

[0002] In the field of load regulation in distribution network planning, some load problems often require load adjustment. Load adjustment mainly involves substation area determination, load adjustment, and load regulation evaluation.

[0003] Currently, load adjustment and load regulation evaluation are mainly completed manually. For load adjustment, planners need to consult a large number of drawings and comprehensively consider various factors such as load information, load topology, geographical information, and grid information. For load regulation evaluation, planners need to manually analyze the load situation after adjustment in real time during the load regulation process.

[0004] In the process of load regulation in distribution network planning, manual load adjustment consumes a large amount of mental effort for planners and has a high error probability. There are problems such as poor accuracy, low load regulation efficiency, and high labor costs during the load regulation process. Summary of the Invention

[0005] This application provides a load regulation method, device, medium, and electronic device in distribution network planning, which can achieve the purpose of improving load regulation efficiency and accuracy and reducing labor costs during the load regulation process.

[0006] According to the first aspect of this application, a load regulation method in distribution network planning is provided. The method includes:

[0007] Determine a first substation area and a second substation area that require load adjustment according to the substation area load data and substation area location information of at least two candidate substation areas in the area to be planned;

[0008] Based on the distribution line information of power users in the first substation area, the substation area location information of the second substation area, the user load data of power users in the first substation area, the substation area load data of the first substation area, and the substation area load data of the second substation area, determine target users in the power users of the first substation area who can be planned to the second substation area;

[0009] Based on the distribution line information of the target users and the substation area location information of the second substation area, plan the target users from the first substation area to the second substation area.

[0010] According to the second aspect of this application, a load regulation device in distribution network planning is provided. The device includes:

[0011] A load adjustment area determination module, configured to determine a first area and a second area that need to perform load adjustment according to the area load data and area location information of at least two candidate areas in the area to be planned;

[0012] A target user determination module, configured to determine target users that can be planned to the second area among the power users in the first area based on the distribution line information of the power users in the first area, the area location information of the second area, the user load data of the power users in the first area, the area load data of the first area, and the area load data of the second area;

[0013] A target user planning module, configured to plan the target users from the first area to the second area based on the distribution line information of the target users and the area location information of the second area.

[0014] According to a third aspect of the present invention, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it implements the load adjustment method in the distribution network planning as described in the embodiment of the present application.

[0015] According to a fourth aspect of the present invention, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, it implements the load adjustment method in the distribution network planning as described in the embodiment of the present application.

[0016] According to a fifth aspect of the present application, an embodiment of the present application provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the load adjustment method in the distribution network planning as described in the embodiment of the present application.

[0017] The technical solution of the present application determines a first area and a second area that need to perform load adjustment according to the area load data and area location information of at least two candidate areas in the area to be planned. Based on the distribution line information of the power users in the first area, the area location information of the second area, the user load data of the power users in the first area, the area load data of the first area, and the area load data of the second area, target users that can be planned to the second area are determined among the power users in the first area. Based on the distribution line information of the target users and the area location information of the second area, the target users are planned from the first area to the second area, realizing automatic load adjustment in the distribution network planning. During the process of determining the target users, the load change dimension and the line adjustment dimension are comprehensively considered. The accuracy of the target users is ensured, which is beneficial to improving the load adjustment efficiency and accuracy, and is beneficial to reducing the labor cost during the load adjustment process.

[0018] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a flowchart of a load regulation method in a distribution network planning provided according to Embodiment 1;

[0021] Figure 2 is a flowchart of a load regulation method in a distribution network planning provided according to Embodiment 2;

[0022] Figure 3 is a schematic structural diagram of a load regulation device in a distribution network planning provided by Embodiment 3 of the present application;

[0023] Figure 4 is a schematic structural diagram of an electronic device provided by Embodiment 4 of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to enable those skilled in the art to better understand the solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", "target", and "candidate" in the description, claims, and drawings of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0026] Embodiment 1

[0027] Figure 1 FIG. 5 is a flowchart of a load regulation method in a distribution network planning provided according to Embodiment 1. This embodiment is applicable to the situation of load adjustment in distribution network planning. This method can be executed by a load regulation device in the distribution network planning. The load regulation device in the distribution network planning is implemented in the form of hardware and / or software and can be integrated into an electronic device running this system.

[0028] As Figure 1 shown, the method includes:

[0029] S110. Determine a first substation area and a second substation area that need to perform load adjustment according to the substation area load data and substation area location information of at least two candidate substation areas in the area to be planned.

[0030] S120. Based on the distribution line information of power users in the first substation area, the substation area location information of the second substation area, the user load data of power users in the first substation area, the substation area load data of the first substation area, and the substation area load data of the second substation area, determine target users in the power users of the first substation area that can be planned to the second substation area.

[0031] S130. Based on the distribution line information of the target users and the substation area location information of the second substation area, plan the target users from the first substation area to the second substation area.

[0032] Among them, the area to be planned refers to the area that needs to perform distribution network planning. The area to be planned includes at least two candidate substation areas. A candidate substation area refers to the area served by a transformer. Among them, the transformer corresponding to the candidate substation area can be a transformer already in service in the area to be planned or a transformer planned to be added in the area to be planned. The substation area load data is used to describe the load situation of the transformer. Optionally, the substation area load data includes: the highest load rate and the transformer capacity. Among them, the substation area location information is used to determine the geographical location and power supply radius of the transformer in the substation area. The distribution line information is used to determine the geographical location of the electricity user in the first substation area and which distribution branch the electricity user belongs to in the distribution network.

[0033] The first substation area and the second substation area refer to the substation areas that need to perform load adjustment. Optionally, the first substation area is the substation area that needs to reduce the load, and the second substation area is the substation area that needs to increase the load. Optionally, the highest load rate of the first substation area is higher than the highest load rate of the second substation area, and the first substation area includes at least two electricity users. Performing load adjustment on the first substation area and the second substation area can be to plan some users in the first substation area to the second substation area. The substation area location information of the candidate substation area is used to determine the relative distance between the candidate substation areas.

[0034] It can be understood that not all electricity users in the first substation area can be planned to the second substation area. Among them, the target users are the electricity users in the first substation area who can be planned to the second substation area. The target users are determined according to the distribution line information of the power users in the first substation area, the substation area location information of the second substation area, the user load data of the power users in the first substation area, the substation area load data of the first substation area, and the substation area load data of the second substation area.

[0035] As electricity users are planned from the first substation area to the second substation area, the loads of the first substation area and the second substation area will change. The load of the first substation area will decrease, and the load of the second substation area will increase accordingly, so as to achieve load balance between the first substation area and the second substation area.

[0036] The load changes of the first substation area and the second substation area are determined according to the user load data of the electricity users in the first substation area and the substation area load data of the first substation area and the second substation area. That is to say, the user load data of the electricity users in the first substation area and the substation area load data of the first substation area and the second substation area are used to determine the target users among the electricity users in the first substation area from the dimension of load change.

[0037] Planning electricity users from the first substation area to the second substation area involves line adjustment. Specifically, it is necessary to cut off the line between the electricity user and the transformer in the first substation area. After cutting off the line, it is also necessary to establish a connection between the electricity user and the transformer in the second substation area. Considering the line adjustment cost and feasibility is required when planning electricity users from the first substation area to the second substation area. The distribution line information of the power users in the first substation area and the substation area location information of the second substation area are used to determine the target users among the electricity users in the first substation area from the dimension of line adjustment.

[0038] Optionally, after determining the target users who can be planned to the second substation area, based on the distribution line information of the target users and the substation area location information of the second substation area, determine at which point to cut off the line between the target users and the transformer in the first substation area, and determine at which point to establish a connection between the target users and the transformer in the second substation area.

[0039] For the technical solution of this application, based on the substation load data and substation location information of at least two candidate substations in the area to be planned, the first substation and the second substation that need to have their loads adjusted are determined. Based on the distribution line information of the power users in the first substation, the substation location information of the second substation, the user load data of the power users in the first substation, the substation load data of the first substation, and the substation load data of the second substation, target users that can be planned to the second substation are determined among the power users in the first substation. Based on the distribution line information of the target users and the substation location information of the second substation, the target users are planned from the first substation to the second substation, achieving automatic load adjustment in distribution network planning. During the process of determining the target users, the dimensions of load change and line adjustment are comprehensively considered. This ensures the accuracy of the target users, is conducive to improving the load adjustment efficiency and accuracy, and is conducive to reducing the labor cost during the load adjustment process.

[0040] In an optional embodiment, the planning of the target users from the first substation to the second substation based on the distribution line information of the target users and the substation location information of the second substation includes: based on the distribution line information of the target users, determining the branch node to which the target users belong among the branch nodes of the distribution network; determining the relative hierarchical relationship of the branch node to which the target users belong in the distribution network; based on the relative hierarchical relationship and the substation location information of the second substation, determining a connection point position in the distribution network of the first substation; and based on the connection point position, planning the target users from the first substation to the second substation.

[0041] Based on the distribution line information of the target users, the geographical location of the target users in the first substation and which distribution branch of the target users in the distribution network can be determined. The distribution network includes at least two branch nodes. When both the geographical location of the target users and which distribution branch the target users belong to in the distribution network are determined, the branch node to which the target users belong can be determined among the branch nodes of the distribution network. Each target user has a corresponding branch node.

[0042] In the distribution network, the branch nodes have a clear hierarchical relationship. The branch nodes closer to the transformer have a higher relative level. Generally speaking, the branch nodes with a higher relative level have more downstream electricity users.

[0043] The connection point position is generated in the branch node to which the target users belong. Here, the connection point position refers to the line position in the first substation where the load is cut. The connection point position is determined according to the relative hierarchical relationship of the branch node to which the target users belong in the distribution network and the substation location information of the second substation. Among them, the substation location information of the second substation is used to determine the relative distance between the branch node to which the target users belong and the transformer in the second substation.

[0044] Optionally, among the branch nodes to which the target user belongs, select the branch node that is closer to the transformer in the second substation area and has a relatively higher level. Then, determine the tapping point based on the selected branch point. Compared with directly determining the branch node to which the target user belongs as the tapping point, this can minimize the tapping points, thereby greatly reducing the construction complexity. When the tapping point is determined, cut off the line between the target user and the transformer in the first substation area at the tapping point, and plan the target user from the first substation area to the second substation area.

[0045] The above solution provides a practical solution for determining the tapping point. By comprehensively considering the relative hierarchical relationship of the branch node to which the target user belongs in the power distribution network and the substation area location information of the second substation area, the tapping point is determined. This ensures the rationality of determining the tapping point. Planning the target user from the first substation area to the second substation area based on the interface point is beneficial to improving the efficiency of load cutting.

[0046] Embodiment 2

[0047] Figure 2 is a flowchart of the load regulation method in the power distribution network planning provided according to Embodiment 2. This embodiment is further optimized based on the above embodiment.

[0048] As Figure 2 shown, the method includes:

[0049] S210. Determine the first substation area and the second substation area that need to perform load adjustment according to the substation area load data and substation area location information of at least two candidate substation areas in the area to be planned.

[0050] S220. Based on the power distribution line information of the power users in the first substation area and the substation area location information of the second substation area, determine the target branch to be load-adjusted in the power distribution network of the first substation area, and determine the power users on the target branch as candidate users.

[0051] Based on the power distribution line information of the power users, the geographical location of the power users in the first substation area can be determined. Based on the substation area location information of the second substation area, the relative distance between the transformer and the power users in the second substation area can be determined.

[0052] Optionally, based on the relative distance between the transformer and the power users in the second substation area, determine the initial users among the power users in the first substation area. Based on the power distribution line information of the initial users, determine which power distribution branch the initial users belong to in the power distribution network, and determine the power distribution branch to which the initial users belong in the power distribution network as the target branch to be load-adjusted.

[0053] Determine the power users on the target branch as candidate users. Among them, the candidate users may or may not be able to be planned from the first substation area to the second substation area. Specifically, it is also necessary to comprehensively consider the load changes of the transformers in the first substation area and the second substation area after the candidate users are planned to the second substation area.

[0054] S230. Determine the load regulation priority for the candidate users based on the relative position relationship of the candidate users on the target branch and the substation area location information of the second substation area.

[0055] Optionally, there are at least two candidate users, and the specific number of candidate users is determined according to the actual situation and is not limited here. Each candidate user has a corresponding load regulation priority, and the load regulation priority is used to determine the order of planning the candidate users from the first substation area to the second substation area. Among them, the load regulation priority is determined according to the relative position relationship of the candidate users on the target branch and the substation area location information of the second substation area.

[0056] The substation area location information of the second substation area is used to determine the relative distance between the transformer in the second substation area and the candidate users. Optionally, the closer the candidate user is to the transformer in the second substation area, the higher its corresponding load regulation priority, because generally speaking, the closer to the transformer in the second substation area, the lower the line adjustment cost generated.

[0057] The relative position relationship of the candidate users on the target branch is used to determine the relative distance between the candidate users and the transformer in the first substation area. The closer the relative distance between the candidate users and the transformer in the first substation area, the deeper the level where the candidate users are located in the distribution network. The relative position relationship of the candidate users on the target branch corresponds to the load regulation priority of the candidate users. Optionally, the candidate users at the same level in the distribution network generally have the same corresponding load regulation priority.

[0058] S240. In response to planning the candidate users from the first substation area to the second substation area according to the load regulation priority, update the substation area load data of the first substation area and the second substation area based on the user load data of the candidate users to obtain the planned load data of the first substation area and the second substation area.

[0059] Among them, the load regulation priority limits the order in which candidate users are planned from the first distribution area to the second distribution area. The candidate users are planned from the first distribution area to the second distribution area according to the load regulation priority. Optionally, every time a candidate user is planned from the first distribution area to the second distribution area, the load data of the first distribution area and the second distribution area are updated based on the user load data of the candidate user to obtain the planned load data of the first distribution area and the second distribution area. Among them, the planned load data is the load data of the first distribution area and the second distribution area after the candidate user is planned from the first distribution area to the second distribution area.

[0060] Optionally, based on the highest load rate and the transformer capacity in the load data of the distribution area, the highest loads of the first distribution area and the second distribution area are determined. For example, calculate the product between the highest load rate and the transformer capacity, and determine the highest load as the obtained product. Based on the user load data, the capacity consumption of the electricity-using users can be determined. After a candidate user is planned from the first distribution area to the second distribution area, the actual load of the first distribution area is obtained by subtracting the capacity consumption of the candidate user from the highest load of the first distribution area; the actual load of the second distribution area is obtained by adding the capacity consumption of the candidate user to the highest load of the second distribution area. Based on the actual loads of the first distribution area and the second distribution area, the planned load data of the first distribution area and the second distribution area can be determined. Based on the planned load data, it can be determined whether the first distribution area and the second distribution area reach load balance.

[0061] S250. Based on the planned load data of the first distribution area and the second distribution area, determine the target users that can be planned to the second distribution area from the candidate users.

[0062] Each candidate user has corresponding planned load data. Every time a candidate user is planned from the first distribution area to the second distribution area, it is determined whether the first distribution area and the second distribution area reach load balance based on the planned load data corresponding to the candidate user. If the first distribution area and the second distribution area do not reach load balance after the current candidate user is planned from the first distribution area to the second distribution area, then continue to plan the next candidate user from the first distribution area to the second distribution area until the first distribution area and the second distribution area reach load balance.

[0063] S260. Based on the distribution line information of the target users and the location information of the second distribution area, plan the target users from the first distribution area to the second distribution area.

[0064] In the technical solution of this application, the target branch to be load-adjusted is determined in the power distribution network of the first substation area, and the power users on the target branch are determined as candidate users. Based on the relative position relationship of the candidate users on the target branch and the substation area location information of the second substation area, the load-adjustment priority is determined for the candidate users. In response to planning the candidate users from the first substation area to the second substation area according to the load-adjustment priority, the substation area load data of the first substation area and the second substation area are updated based on the user load data of the candidate users to obtain the planned load data of the first substation area and the second substation area. Based on the planned load data of the first substation area and the second substation area, the target users that can be planned to the second substation area are determined from the candidate users. A practical target user determination scheme is provided, which is used to determine the power users in the first substation area that can be planned to the second substation area, ensuring the accuracy of target user selection and facilitating the improvement of load-adjustment accuracy.

[0065] In an alternative embodiment, based on the power distribution line information of the power users in the first substation area and the substation area location information of the second substation area, determining the target branch to be load-adjusted in the power distribution network of the first substation area and determining the power users on the target branch as candidate users includes: based on the power distribution line information of the power users in the first substation area and the substation area location information of the second substation area, determining the relative distance between the power users in the first substation area and the second substation area; based on the relative distance, determining the initial users among the power users in the first substation area; in the power distribution network of the first substation area, determining the power distribution branch where the initial users are located and determining the power distribution branch as the target branch to be load-adjusted; and determining the power users on the target branch as candidate users.

[0066] The power distribution line information is used to determine the geographical location of the power users in the first substation area, and the substation area location information is used to determine the geographical location of the transformers in the substation area. Based on the power distribution line information of the power users in the first substation area and the substation area location information of the second substation area, the relative distance between the power users in the first substation area and the second substation area can be determined.

[0067] There is a corresponding relative distance for each power user in the first substation area. Optionally, the power users in the first substation area are sorted in ascending order of the relative distance, and the power user with the smallest relative distance is selected as the initial user. Among them, the initial user refers to the power user that is most likely to be planned from the first substation area to the second substation area.

[0068] The power distribution network of the first substation area includes at least two power distribution branches connected to the main line. Based on the power distribution line information of the initial users, in the power distribution network of the first substation area, determine the power distribution branch to which the initial users belong, and determine the power distribution branch to which the initial users belong as the target branch for load regulation. In the case where the target branch is determined, combine the power distribution line information of the power users in the first substation area to determine the power users on the target branch, and determine these power users as candidate users.

[0069] The above technical solution provides a practical candidate user determination solution, comprehensively considering the relative distance between the power users and the second substation area, as well as the line connection relationship between the power users. It ensures the feasibility of load regulation and is conducive to reducing the line adjustment cost generated during the load regulation process.

[0070] In an optional embodiment, determining the load regulation priority for the candidate users based on the relative position relationship of the candidate users on the target branch and the substation area location information of the second substation area includes: determining the initial users among the candidate users on the target branch based on the substation area location information of the second substation area; determining the load regulation priority of the initial users as the first priority, and determining the branch node to which the initial users belong as the reference branch node; determining the node belonging relationship between the candidate users and the branch nodes in the power distribution network; if it is determined based on the node belonging relationship that the branch node to which the candidate users belong is the reference branch node, determining the load regulation priority of the candidate users as the first priority; if it is determined based on the node belonging relationship that the branch node to which the candidate users belong is the parent branch node of the reference branch node, then determining the load regulation priority of the candidate users as the second priority; where the first priority is higher than the second priority.

[0071] Optionally, based on the substation area location information of the second substation area, determine the relative distance between the second substation area and each candidate user on the target branch. Select the candidate user closest to the second substation area on the target branch as the initial user. The initial user is generated among the candidate users and is the power user closest to the second substation area and most likely to be planned to the second substation area. Determine the load regulation priority of the initial users as the first priority.

[0072] Among them, the reference branch node refers to the branch node to which the initial users in the power distribution network belong. The reference branch node provides a reference for determining the load regulation priority of the candidate users. The node belonging relationship is used to determine the corresponding relationship between the branch nodes in the power distribution network and the candidate users.

[0073] If the branch node to which the candidate user belongs is the reference branch node, it indicates that the candidate user and the initial user are connected to the same distribution branch. Since the disconnection point is generated in the branch node, determining the branch node as the disconnection point can plan the electricity users on the same distribution branch to the second substation area together. Therefore, when the branch node to which the candidate user belongs is the reference branch node, the load regulation priority of the candidate user is determined as the first priority.

[0074] The parent branch node refers to the branch node at a higher level than the reference branch node in the distribution network. Generally, there are more electricity users under the parent branch node than those under the reference branch node. Considering the construction difficulty and feasibility of the load regulation process, if the branch node to which the candidate user belongs is the parent node of the reference branch node, the load regulation priority of the candidate user is determined as the second priority. Among them, the first priority is higher than the second priority. Starting from the reference branch node, traverse layer by layer upward in the distribution network of the first substation area, and gradually reduce the load regulation priority.

[0075] The above technical solution provides a load regulation priority determination scheme, which can be used to determine the load regulation priority for candidate users on the target branch, and provides data support for planning the electricity users in the first substation area to the second substation area according to the load regulation priority.

[0076] In an optional embodiment, based on the planned load data of the first substation area and the second substation area, determining the target users that can be planned to the second substation area from the candidate users includes: extracting the planned load rate from the planned load data of the first substation area and the second substation area, and determining the expected load rates of the first substation area and the second substation area; if the planned load rate of the second substation area is less than or equal to the expected load rate after planning the current user from the first substation area to the second substation area, then determine the current user as the target user that can be planned to the second substation area; if the planned load rate of the second substation area is greater than the expected load rate after planning the current user from the first substation area to the second substation area, and the planned load rate of the second substation area is less than the expected load rate after planning the previous user from the first substation area to the second substation area, then determine the current user as the target user that can be planned to the second substation area; if the planned load rate of the second substation area is greater than the expected load rate after planning the current user from the first substation area to the second substation area, and the planned load rate of the second substation area is greater than the expected load rate after planning the previous user from the first substation area to the second substation area, then the current user cannot be determined as the target user that can be planned to the second substation area.

[0077] Among them, the planned load data includes the planned load rate, which is determined according to the actual load and the transformer capacity. The planned load rate is used to quantify the load rate situation of the second substation area after the electricity-consuming users are planned from the first substation area to the second substation area. The expected load rate is used to measure whether the transformers in the first substation area and the second substation area reach load balance.

[0078] Optionally, the expected load rates of the first substation area and the second substation area can be calculated by the formula where a1 and b1 respectively represent the maximum load rates of the first substation area and the second substation area, a2 and b2 respectively represent the transformer capacities of the first substation area and the second substation area, and p represents the expected load rate. Among them, the maximum load rate is generated from the historical load rate.

[0079] After the current user is planned from the first substation area to the second substation area, if the planned load rate of the second substation area is less than or equal to the expected load rate, it indicates that the transformers in the first substation area and the second substation area have not reached load balance, then the current user is determined as the target user that can be planned to the second substation area.

[0080] If after the current user is planned from the first substation area to the second substation area, the planned load rate of the second substation area is greater than the expected load rate, and after the previous user is planned from the first substation area to the second substation area, the planned load rate of the second substation area is less than the expected load rate, it indicates that the transformers in the first substation area and the second substation area just reach load balance, then the current user is determined as the target user that can be planned to the second substation area.

[0081] If after the current user is planned from the first substation area to the second substation area, the planned load rate of the second substation area is greater than the expected load rate, and after the previous user is planned from the first substation area to the second substation area, the planned load rate of the second substation area is greater than the expected load rate, it indicates that there are too many electricity-consuming users planned to the second substation area, and the load balance between the transformers in the first substation area and the second substation area is broken, then the current user cannot be determined as the target user that can be planned to the second substation area.

[0082] The above technical solution provides a practical target user determination solution from the dimension of load change, which is beneficial to improving the accuracy of load regulation.

[0083] In a specific embodiment, the load regulation algorithm in the distribution network planning provided by the embodiments of the present application includes the following steps:

[0084] 1. In the area to be planned, determine the first substation area and the second substation area that need load adjustment, denoted as substation area A and substation area B respectively. Then, obtain the user load data of the power users in substation area A. Generally, the user load data of power users can be obtained through query. In the case where the user load data cannot be queried, the user load data is calculated based on the number of electricity users in substation area A and the actual load of the transformer in substation area A. Next, obtain the power user topologies of substation area A and substation area B. The power user topologies are used to provide the distribution line information of the power users. Based on the power user topologies, the power users can be located in the distribution network of substation area A, and the geographical location of the power users in the first substation area and which distribution branch the power users belong to in the distribution network can be determined.

[0085] 2. Obtain the historical load rates of substation area A and substation area B and the transformer capacities of substation area A and substation area B. Select the highest load rate from the historical load rates. Based on the highest load rate and the transformer capacities, calculate the expected load rates of substation area A and substation area B. Optionally, adjust the expected load rates according to the actual business requirements. For example, limit the expected load rates within 80%.

[0086] 3. Take the expected load rate as the load adjustment target. By planning some of the power users in substation area A to substation area B, adjust the planned load rate of substation area B to the expected load rate to achieve load balance between substation area A and substation area B. Search for the initial users among the power users in substation area A. Optionally, through the power user topologies, analyze the geographical locations of the power users in substation area A and select the power users closest to substation area B as the initial users.

[0087] 4. Based on the power user topologies, determine which distribution branch the power users belong to in the distribution network. Determine the target branch to be load-adjusted as the distribution branch where the initial users are located. Take the initial users as the starting point and traverse upstream along the target branch according to the branch nodes. Determine the traversed power users as candidate users. Calculate the planned load rates of substation area A and substation area B every time a candidate user is traversed until the planned load rates of substation area A and substation area B are close to the expected load rates. Since the planned load rate is non-continuous, the planned load rate of substation area B may not be exactly equal to the expected load rate. Then an approximation method can be used: when the planned load rate of substation area B traverses to candidate user ɑ and the planned load rate is less than the expected load rate, then continue to traverse to the next user β upstream of ɑ. If the planned load rate is greater than the expected load rate when traversing to candidate user β, consider the candidate users below candidate user β as the target users.

[0088] If the traversal of the target branch is completed and the planned load rate of substation area B is still less than the expected load rate, then return to step 3 and continue to search for the next branch.

[0089] 5. After determining the target user, determine the branch node to which the target user belongs among the branch nodes of the distribution network. If these branch nodes correspond to multiple distribution branches in the distribution network, then set the connection point at the upper side of the multiple distribution branches. If these branch nodes correspond to a single distribution branch in the distribution network, then set the connection point at the upper side of the branch node to which the target user belongs.

[0090] Implementing the technical solution provided by the embodiments of the present application greatly improves the automation degree of load regulation. The planners only need to be responsible for the final verification and fine-tuning, effectively improving the load regulation efficiency. Compared with the manual load regulation by planners, the technical solution provided by the present application considers more information dimensions, and the obtained load regulation plan is more feasible, and greatly reduces the errors introduced by manual calculation.

[0091] Embodiment III

[0092] Figure 3 It is a schematic structural diagram of a load regulation device in the distribution network planning provided by Embodiment III of the present application. This embodiment is applicable to the situation of load adjustment in distribution network planning. The device can be implemented by software and / or hardware and can be integrated into electronic devices such as intelligent terminals.

[0093] As Figure 3 shown, the load regulation device 300 in the distribution network planning may include:

[0094] A load regulation sub-region determination module 310, configured to determine a first sub-region and a second sub-region that need load adjustment according to the sub-region load data and sub-region location information of at least two candidate sub-regions in the region to be planned;

[0095] A target user determination module 320, configured to determine, among the power users in the first sub-region, target users that can be planned to the second sub-region based on the distribution line information of the power users in the first sub-region, the sub-region location information of the second sub-region, the user load data of the power users in the first sub-region, the sub-region load data of the first sub-region, and the sub-region load data of the second sub-region;

[0096] A target user planning module 330, configured to plan the target users from the first sub-region to the second sub-region based on the distribution line information of the target users and the sub-region location information of the second sub-region.

[0097] In the technical solution of this application, according to the substation load data and substation location information of at least two candidate substations in the area to be planned, the first substation and the second substation that need to adjust the load are determined. Based on the distribution line information of the power users in the first substation, the substation location information of the second substation, the user load data of the power users in the first substation, the substation load data of the first substation, and the substation load data of the second substation, the target users that can be planned to the second substation are determined among the power users in the first substation. Based on the distribution line information of the target users and the substation location information of the second substation, the target users are planned from the first substation to the second substation, realizing automatic load adjustment in the distribution network planning. In the process of determining the target users, the load change dimension and the line adjustment dimension are comprehensively considered. The accuracy of the target users is ensured, which is beneficial to improving the load adjustment efficiency and accuracy, and is beneficial to reducing the labor cost in the load adjustment process.

[0098] Optionally, the target user determination module 320 includes: a target branch determination sub-module, configured to determine a target branch to be load-adjusted in the distribution network of the first substation based on the distribution line information of the power users in the first substation and the substation location information of the second substation, and determine the power users on the target branch as candidate users; a priority determination sub-module, configured to determine a load adjustment priority for the candidate users based on the relative position relationship of the candidate users on the target branch and the substation location information of the second substation; a load data update sub-module, configured to, in response to planning the candidate users from the first substation to the second substation according to the load adjustment priority, update the substation load data of the first substation and the second substation based on the user load data of the candidate users to obtain the planned load data of the first substation and the second substation; a target user determination sub-module, configured to determine the target users that can be planned to the second substation from the candidate users based on the planned load data of the first substation and the second substation.

[0099] Optionally, the target branch determination sub-module includes: a relative distance determination unit, configured to determine the relative distance between the power users in the first substation and the second substation based on the distribution line information of the power users in the first substation and the substation location information of the second substation; an initial user determination unit, configured to determine initial users among the power users in the first substation based on the relative distance; a target branch determination unit, configured to determine the distribution branch where the initial users are located in the distribution network of the first substation and determine the distribution branch as the target branch to be load-adjusted; a candidate user determination unit, configured to determine the power users on the target branch as candidate users.

[0100] Optionally, the priority determination sub-module includes: an initial user determination unit, configured to determine an initial user from candidate users on the target branch based on the branch location information of the second power distribution area; a reference branch node determination unit, configured to determine the load regulation priority of the initial user as the first priority, and determine the branch node to which the initial user belongs as the reference branch node; an attribution relationship determination unit, configured to determine the node attribution relationship between the candidate user and the branch nodes in the power distribution network; a first priority determination unit, configured to, if it is determined based on the node attribution relationship that the branch node to which the candidate user belongs is the reference branch node, determine the load regulation priority of the candidate user as the first priority; a second priority determination unit, configured to, if it is determined based on the node attribution relationship that the branch node to which the candidate user belongs is the parent branch node of the reference branch node, determine the load regulation priority of the candidate user as the second priority; where the first priority is higher than the second priority.

[0101] Optionally, the target user determination sub-module includes: a load rate determination unit, configured to extract the planned load rate from the planned load data of the first power distribution area and the second power distribution area, and determine the expected load rates of the first power distribution area and the second power distribution area; a first user determination unit, configured to, if after planning the current user from the first power distribution area to the second power distribution area, the planned load rate of the second power distribution area is less than or equal to the expected load rate, determine the current user as a target user that can be planned to the second power distribution area; a second user determination unit, configured to, if after planning the current user from the first power distribution area to the second power distribution area, the planned load rate of the second power distribution area is greater than the expected load rate, and after planning the previous user from the first power distribution area to the second power distribution area, the planned load rate of the second power distribution area is less than the expected load rate, determine the current user as a target user that can be planned to the second power distribution area; a third user determination unit, configured to, if after planning the current user from the first power distribution area to the second power distribution area, the planned load rate of the second power distribution area is greater than the expected load rate, and after planning the previous user from the first power distribution area to the second power distribution area, the planned load rate of the second power distribution area is greater than the expected load rate, then the current user cannot be determined as a target user that can be planned to the second power distribution area.

[0102] Optionally, the target user planning module 330 includes: a branch node determination sub-module, configured to determine the branch node to which the target user belongs among the branch nodes of the distribution network based on the distribution line information of the target user; a hierarchical relationship determination sub-module, configured to determine the relative hierarchical relationship of the branch node to which the target user belongs in the distribution network; a connection point determination sub-module, configured to determine a connection point in the distribution network of the first substation area based on the relative hierarchical relationship and the substation area location information of the second substation area; and a user planning sub-module, configured to plan the target user from the first substation area to the second substation area based on the connection point.

[0103] Optionally, the load rate determination unit includes: a data extraction sub-unit, configured to extract the highest load rate and the transformer capacity from the substation area load data; an average load rate determination sub-unit, configured to determine the average load rates of the first substation area and the second substation area based on the highest load rates of the first substation area and the second substation area and the transformer capacity; and an expected load rate determination sub-unit, configured to determine the average load rate as the expected load rates of the first substation area and the second substation area.

[0104] The load regulation device in the distribution network planning provided by the embodiment of the invention can execute the load regulation method in the distribution network planning provided by any embodiment of the present application, and has the corresponding performance modules and beneficial effects for executing the load regulation method in the distribution network planning.

[0105] Embodiment 4

[0106] According to the embodiment of the present application, the present application also provides an electronic device, a readable storage medium, and a computer program product.

[0107] Figure 4 The structural schematic diagram of an electronic device 410 that can be used to implement the embodiment is shown. The electronic device 410 includes at least one processor 411 and a memory communicatively connected to at least one processor 411, such as a read-only memory (ROM) 412, a random access memory (RAM) 413, etc. The memory stores a computer program executable by at least one processor. The processor 411 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 412 or the computer program loaded from the storage unit 418 into the random access memory (RAM) 413. In the RAM 413, various programs and data required for the operation of the electronic device 410 can also be stored. The processor 411, the ROM 412, and the RAM 413 are connected to each other through a bus 414. The input / output (I / O) interface 415 is also connected to the bus 414.

[0108] Multiple components in the electronic device 410 are connected to the I / O interface 415, including: an input unit 416, such as a keyboard, a mouse, etc.; an output unit 417, such as various types of displays, speakers, etc.; a storage unit 418, such as a magnetic disk, an optical disc, etc.; and a communication unit 419, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 419 allows the electronic device 410 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0109] The processor 411 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 411 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 411 executes the various methods and processes described above, such as the load regulation method in the power distribution network planning.

[0110] In some embodiments, the load regulation method in the power distribution network planning can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 418. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 410 via the ROM 412 and / or the communication unit 419. When the computer program is loaded into the RAM 413 and executed by the processor 411, one or more steps of the load regulation method in the power distribution network planning described above can be executed. Alternatively, in other embodiments, the processor 411 can be configured to execute the load regulation method in the power distribution network planning by any other suitable means (e.g., by means of firmware).

[0111] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGA), application-specific integrated circuits (ASIC), application-specific standard products (ASSP), systems-on-chip (SOC), complex programmable logic devices (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special or general programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0112] A computer program for implementing the method of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable load regulation devices in a power distribution network planning, such that when the computer programs are executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer programs can be executed entirely on the machine, partially on the machine, executed partially on the machine as an independent software package and partially on a remote machine, or executed entirely on a remote machine or server.

[0113] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0114] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and the input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0115] The systems and techniques described herein can be implemented in a computing system including backend components (e.g., as a load regulation server in distribution network planning), or a computing system including middleware components (e.g., an application server), or a computing system including frontend components (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with embodiments of the systems and techniques described herein), or a computing system including any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected to each other by digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include: local area network (LAN), wide area network (WAN), blockchain network, and the Internet.

[0116] A computing system can include a client and a server. The client and the server are generally remote from each other and typically interact through a communication network. The client-server relationship is created by computer programs running on respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system and solves the defects of large management difficulty and weak business scalability existing in traditional physical hosts and VPS services.

[0117] An embodiment of the present application also discloses a computer program product, which includes a computer program that, when executed by a processor, implements the load regulation method in distribution network planning provided in any embodiment of the present application. This program product belongs to the same inventive concept as the load regulation methods in distribution network planning disclosed in various embodiments of the present application, and thus will not be elaborated herein.

[0118] It should be understood that various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps recited in the present application can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present application can be achieved, and no limitation is imposed herein.

[0119] The above specific embodiments do not constitute a limitation to the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A load regulation method in load regulation in distribution network planning, characterized in that: The method comprises: Determine the first substation and the second substation that need to be load adjusted according to the substation load data and substation location information of at least two candidate substations in the area to be planned; Determine, from the power users in the first substation, target users that can be planned to the second substation based on the power distribution line information of the power users in the first substation, the substation location information of the second substation, the user load data of the power users in the first substation, the substation load data of the first substation, and the substation load data of the second substation; Based on the power distribution line information of the target user and the station location information of the second station area, the target user is planned from the first station area to the second station area.

2. The method according to claim 1, characterized in that: The determining, from among the power users in the first substation, target users that can be planned to the second substation based on the distribution line information of the power users in the first substation, the substation location information of the second substation, the user load data of the power users in the first substation, the substation load data of the first substation, and the substation load data of the second substation, comprises: Based on the power distribution line information of the power users in the first substation and the substation location information of the second substation, determining the target branch to be loaded in the power distribution network of the first substation and determining the power users on the target branch as candidate users; Determining a load adjustment priority for the candidate user based on the relative position relationship of the candidate user on the target branch and the station area location information of the second station area; In response to planning the candidate user from the first station area to the second station area according to the load adjustment priority, updating the station area load data of the first station area and the second station area based on the user load data of the candidate user to obtain the planned load data of the first station area and the second station area; Based on the planned load data of the first station area and the second station area, a target user that can be planned to the second station area is determined from the candidate users.

3. The method according to claim 2, characterized in that Based on the distribution line information of the power users in the first substation and the substation location information of the second substation, determining a target branch to be loaded in the distribution network of the first substation and determining the power users on the target branch as candidate users, including: Determine the relative distance between the power user in the first substation and the second substation based on the power distribution line information of the power user in the first substation and the substation location information of the second substation; Based on the relative distance, determining an initial user among the power users in the first area; In the power distribution network of the first substation, determining the power distribution branch where the initial user is located and determining the power distribution branch as the target branch to be loaded; The power users on the target branch are determined as candidate users.

4. The method according to claim 3, characterized in that The step of determining the load adjustment priority for the candidate user based on the relative position relationship of the candidate user on the target branch and the station area location information of the second station area includes: Based on the station location information of the second station area, determining an initial user from candidate users on the target branch; Determine the load adjustment priority of the initial user as the first priority, and determine the branch node to which the initial user belongs as the reference branch node; Determining a node affiliation relationship between the candidate user and a branch node in the power distribution network; If it is determined based on the node affiliation relationship that the branch node to which the candidate user belongs is the reference branch node, the load adjustment priority of the candidate user is determined to be the first priority; If it is determined based on the node affiliation relationship that the branch node to which the candidate user belongs is the parent branch node of the reference branch node, the load adjustment priority of the candidate user is determined to be the second priority; wherein the first priority is higher than the second priority.

5. The method according to claim 2, characterized in that: Determining a target user that can be planned to the second station area from the candidate users based on the planned load data of the first station area and the second station area includes: Extracting a planned load rate from the planned load data of the first station area and the second station area, and determining an expected load rate of the first station area and the second station area; If after the current user is planned from the first station area to the second station area, the planned load rate of the second station area is less than or equal to the expected load rate, the current user is determined as a target user that can be planned to the second station area; If after the current user is planned from the first station area to the second station area, the planned load rate of the second station area is greater than the expected load rate, and after the previous user is planned from the first station area to the second station area, the planned load rate of the second station area is less than the expected load rate, then the current user is determined as a target user that can be planned to the second station area; If after the current user is planned from the first area to the second area, the planned load rate of the second area is greater than the expected load rate, and after the previous user is planned from the first area to the second area, the planned load rate of the second area is greater than the expected load rate, then the current user cannot be determined as a target user that can be planned to the second area.

6. The method according to claim 1, characterized in that The planning of moving the target user from the first station area to the second station area based on the distribution line information of the target user and the station area location information of the second station area includes: Based on the distribution line information of the target user, determining the branch node to which the target user belongs among the branch nodes of the distribution network; Determine the relative hierarchical relationship of the branch node to which the target user belongs in the power distribution network; Based on the relative hierarchical relationship and the substation location information of the second substation, determining a release point in the power distribution network of the first substation; Based on the release point, the target user is planned from the first station area to the second station area.

7. The method according to claim 5, characterized in that The determining of the expected load rates of the first station area and the second station area includes: Extracting the highest load rate and transformer capacity from the load data of the substation area; Determine the average load rate of the first transformer area and the second transformer area based on the highest load rate of the first transformer area and the second transformer area and the transformer capacity; The average load rate is determined as the expected load rate of the first station area and the second station area.

8. A load regulating device in distribution network planning, characterized in that: The device comprises: A load adjustment area determination module is used to determine the first area and the second area that need to be load adjusted according to the area load data and area location information of at least two candidate areas in the area to be planned; a target user determination module, configured to determine target users that can be planned to the second substation from among the power users in the first substation, based on the power distribution line information of the power users in the first substation, the substation location information of the second substation, the user load data of the power users in the first substation, the substation load data of the first substation, and the substation load data of the second substation; A target user planning module is used to plan the target user from the first substation to the second substation based on the distribution line information of the target user and the substation location information of the second substation.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the load regulation method in distribution network planning as described in any one of claims 1 to 7 is implemented.

10. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the load regulation method in distribution network planning according to any one of claims 1 to 7 is implemented.

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