Recommendation method and device for power distribution network grid structure scheme

Abstract

The invention provides a power distribution network grid structure scheme recommendation method and device, and the method comprises the steps: firstly, recognizing data based on resource conditions inputted by a user: a power distribution station and distance corresponding to an access point outgoing line, a mapping relation between the power distribution station and a load unit, a grid structure form, and a power distribution station adjacent relation and distance; the method comprises the following steps: generating a first analogy selection scheme, a second analogy selection scheme and a third analogy selection scheme, then performing permutation and combination on the first analogy selection scheme, the second analogy selection scheme and the third analogy selection scheme to obtain a recommended grid structure scheme set, and then aiming at each recommended grid structure scheme in the recommended grid structure scheme set, selecting a recommended grid structure scheme in the recommended grid structure scheme set. And determining an incremental payback period of each recommended grid structure scheme in the recommended grid structure scheme set, and finally, determining an optimal grid structure scheme according to the incremental payback periods of all the recommended grid structure schemes, thereby realizing efficient and rapid planning of the optimal grid structure scheme of the power distribution network.

Description

Technical Field

[0001] The present application relates to the field of integrated energy technology, and in particular to a method and device for recommending a distribution network grid structure solution. Background Art

[0002] The distribution network is a city's infrastructure and has a significant impact on the city's power supply security. From the perspective of investment scale, the distribution network investment has increased the fastest, and the future trend will gradually catch up with power generation and transmission; from the perspective of reliability, most power outages that affect reliability occur in the distribution network, and the link with the largest losses is also in the distribution network.

[0003] At present, traditional distribution network grid structure planning schemes rely on manpower and experience to manually plan distribution network schemes. However, when relying on manpower and experience to manually plan distribution network schemes, the requirements for users' understanding of distribution network construction conditions are very strict, which makes it difficult for users to plan distribution network schemes efficiently and quickly. Summary of the invention

[0004] In view of this, the present application provides a method and device for recommending a distribution network grid structure solution, which can achieve efficient and rapid planning of the distribution network grid structure solution.

[0005] The first aspect of the present application provides a method for recommending a distribution network grid structure solution, comprising:

[0006] Receive resource condition recognition data input by the user; wherein the resource condition recognition data includes: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station;

[0007] Determine a first type of comparison scheme according to the distribution station and distance corresponding to the outgoing line of the access point;

[0008] Determine the power source nature of the access point based on the maximum available power supply capacity of the access point, the characteristic information of each load unit under the access point, and the distribution station and distance corresponding to the outgoing line of the access point;

[0009] Determine a second type of comparison scheme according to the mapping relationship between the distribution station and the load unit and the characteristic information of the load unit;

[0010] According to the first type of comparison and selection scheme, the second type of comparison and selection scheme and the adjacent relationship and distance of the distribution station, the optimal path information between the access point and the distribution station is determined; wherein the optimal path information between the access point and the distribution station includes the optimal path and distance between each access point and each distribution station;

[0011] Determine the mapping relationship between the target access point and the distribution station according to the power source property, the designed power load, the maximum available power supply capacity, and the optimal path information between the access point and the distribution station; wherein the target access point is an access point with the power source property of primary supply;

[0012] Generate a third type of comparison scheme according to the mapping relationship between the target access point and the distribution station, the grid structure form, and the adjacent relationship and distance between the distribution stations;

[0013] Arrange and combine the first type of comparison schemes, the second type of comparison schemes and the third type of comparison schemes to obtain a set of recommended grid structure schemes;

[0014] For each recommended grid structure solution in the set of recommended grid structure solutions, determining an incremental investment payback period of the recommended grid structure solution;

[0015] The optimal grid structure scheme is determined based on the incremental investment payback periods of all the recommended grid structure schemes; if there are multiple recommended grid structure schemes whose incremental investment payback periods are greater than 0 and less than or equal to the critical incremental investment payback period, the recommended grid structure scheme with the largest incremental investment payback period is used as the optimal grid structure scheme; if there is no recommended grid structure scheme whose incremental investment payback period is greater than 0 or greater than the critical incremental investment payback period, the recommended grid structure scheme corresponding to the benchmark investment is used as the optimal grid structure scheme; the benchmark investment is the lowest construction investment among all recommended grid structure schemes.

[0016] The second aspect of the present application provides a recommended device for a distribution network grid structure solution, including:

[0017] A receiving unit, configured to receive resource condition recognition data input by a user; wherein the resource condition recognition data includes: a distribution station and distance corresponding to an access point outgoing line, a mapping relationship between a distribution station and a load unit, a grid structure form, and a distribution station adjacent relationship and distance;

[0018] A first type comparison scheme generating unit, configured to determine a first type comparison scheme according to a distribution station and a distance corresponding to an outgoing line of the access point;

[0019] A power source property determination unit, used to determine the power source property of the access point according to the maximum available power supply capacity of the access point, characteristic information of each load unit under the access point, and the power distribution station and distance corresponding to the outgoing line of the access point;

[0020] A second type comparison scheme generating unit, used for determining a second type comparison scheme according to the mapping relationship between the distribution station and the load unit and the characteristic information of the load unit;

[0021] A first mapping relationship determination unit, configured to determine optimal path information between an access point and a distribution station according to the first type of comparison and selection scheme, the second type of comparison and selection scheme, and the adjacent relationship and distance of the distribution station; wherein the optimal path information between the access point and the distribution station includes the optimal path and distance between each access point and each distribution station;

[0022] A second mapping relationship determination unit is used to determine the mapping relationship between the target access point and the power distribution station according to the power source property of the access point, the designed power load, the maximum available power supply capacity, and the optimal path information between the access point and the power distribution station; wherein the target access point is an access point with a power source property of primary supply;

[0023] A third type comparison scheme generating unit, configured to generate a third type comparison scheme according to a mapping relationship between the target access point and the distribution station, the grid structure form, and the adjacent relationship and distance between the distribution stations;

[0024] A combination unit, used for arranging and combining the first type of comparison and selection schemes, the second type of comparison and selection schemes and the third type of comparison and selection schemes to obtain a set of recommended grid structure schemes;

[0025] An incremental investment payback period determination unit, configured to determine the incremental investment payback period of each recommended grid structure scheme in the recommended grid structure scheme set;

[0026] The optimal grid structure scheme determining unit is used to determine the optimal grid structure scheme according to the incremental investment payback periods of all the recommended grid structure schemes; wherein, if there are multiple recommended grid structure schemes whose incremental investment payback periods are greater than 0 and are less than or equal to the critical incremental investment payback period, the recommended grid structure scheme with the largest incremental investment payback period is used as the optimal grid structure scheme; if there is no recommended grid structure scheme whose incremental investment payback period is greater than 0 or greater than the critical incremental investment payback period, the recommended grid structure scheme corresponding to the benchmark investment is used as the optimal grid structure scheme; the benchmark investment is the lowest construction investment among all recommended grid structure schemes.

[0027] A third aspect of the present application provides an electronic device, including:

[0028] one or more processors;

[0029] a storage device having one or more programs stored thereon;

[0030] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for recommending a distribution network grid structure solution as described in any one of the first aspects.

[0031] A fourth aspect of the present application provides a computer storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for recommending a distribution network grid structure solution as described in any one of the first aspects is implemented.

[0032] It can be seen from the above scheme that the present application provides a method and device for recommending a distribution network grid structure scheme. First, based on the resource condition recognition data input by the user: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station, a first type of comparison scheme, a second type of comparison scheme and a third type of comparison scheme are generated. Then, the first type of comparison scheme, the second type of comparison scheme and the third type of comparison scheme are arranged and combined to obtain a set of recommended grid structure schemes. Then, for each recommended grid structure scheme in the recommended grid structure scheme set, the incremental investment payback period of each recommended grid structure scheme in the recommended grid structure scheme set is determined. Finally, according to the incremental investment payback periods of all recommended grid structure schemes, the optimal grid structure scheme is determined, thereby realizing efficient and rapid planning of the optimal grid structure scheme for the distribution network. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0034] Figure 1 A specific flow chart of a method for recommending a distribution network grid structure solution provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of a known adjacency list provided in another embodiment of the present application;

[0036] Figure 3 A schematic diagram of an adjacency table after path optimization provided by another embodiment of the present application;

[0037] Figure 4 A schematic diagram of a recommended device for a distribution network grid structure solution provided in another embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0040] It should be noted that the concepts such as "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0041] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0042] The present application embodiment provides a method for recommending a distribution network grid structure solution, such as Figure 1 As shown, the specific steps include:

[0043] S101. Receive resource condition recognition data input by a user.

[0044] Among them, the resource condition recognition data include: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station.

[0045] During the specific implementation of this application, users can fill in the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station in the distribution network interface. The distribution network page will also provide corresponding operation instructions, which are not limited here.

[0046] In the mapping relationship between distribution station and load unit on the distribution network page, you can add the name of the distribution station and whether the distribution station is located indoors or outdoors. At the same time, the load units near the distribution station (the distance can be agreed upon, such as 350m) are placed under the corresponding distribution station. The same load unit can be placed under different distribution stations. The two establish a possible mapping relationship and enter the distance between the distribution station and the load unit. Select "None" when the distribution station is not bound to the load unit. The creation of load units is a preparatory step. When creating load units, you can also add cognitive information to help users recognize the load, recognize the design electrical load, load level and scale, load growth status and load fluctuation law of each load unit. For example, the cognitive information of load unit i includes: (1) load unit i_design electrical load; (2) load unit i_load level, proportion of load above level 2; (3) load unit i_load capacity utilization rate; (4) simulated load unit i_8760 hourly electrical load.

[0047] In the distribution network page, you can add the distribution station and distance corresponding to the access point outgoing line in the mapping relationship between distribution station and load unit. The same distribution station can be placed under different access points.

[0048] It should be noted that in the specific implementation process of this application, the adjacency relationship between distribution stations can start from any distribution station, add adjacent distribution stations and the distance between distribution stations and adjacent distribution stations. The same distribution station can be configured with multiple adjacent distribution stations, or it can be configured with none (indicating that it will not continue later). Distribution stations that have established adjacent relationships are not bound repeatedly. The selected distribution station automatically pops up a row in the first column. The name of the distribution station in the first column cannot be repeated. Users can also configure the subordinate distribution stations of this distribution station.

[0049] In the specific implementation process of the present application, if the user is not sure about the grid structure form, he can choose automatic recommendation in the grid structure. If the user is sure about the grid structure form, he can independently choose serial or radial type in the grid structure.

[0050] S102: Determine a first type of comparison scheme according to the distribution station and distance corresponding to the outgoing line of the access point.

[0051] Optionally, in another embodiment of the present application, an implementation of step S102 specifically includes the following steps:

[0052] S201: Determine whether the number of distribution stations corresponding to outgoing lines of all access points is the same as the number of access points.

[0053] Specifically, if it is determined that the number of distribution stations corresponding to all access point outgoing lines is the same as the number of access points, step S202 is executed; if it is determined that the number of distribution stations corresponding to the access point outgoing lines is different from the number of access points, step S203 is executed.

[0054] S202: The mapping relationship between the outgoing lines of the output access point and the distribution station is used as the only first-class comparison solution.

[0055] Since the outgoing lines from the access points need to correspond to at least one distribution station, only when the outgoing lines from the access points correspond to one distribution station respectively, the number of distribution stations corresponding to the outgoing lines from all the access points is the same as the number of the access points.

[0056] For example, there are three access points, namely, access point S1, access point S2 and access point S3. Each access point outgoing line corresponds to a distribution substation, such as Pa, Pb and Pc. At this time, the output S1→pa, S2→pb and S3→pc are used as the only first-class selection scheme.

[0057] S203: For each access point, select a distribution station closest to the access point from among the distribution stations corresponding to the outgoing lines of the access point as a first target distribution station.

[0058] S204: Determine whether the first target distribution stations corresponding to the outgoing lines of all access points are the same.

[0059] For example: the distribution station closest to access point S1 is pd, the distribution station closest to access point S2 is pe, and the distribution station closest to the access point is pf. Then determine whether pd, pe, and pf are the same distribution station.

[0060] Specifically, if it is determined that the first target distribution stations corresponding to the outgoing lines of all access points are the same, step S205 is executed; if it is determined that the first target distribution stations corresponding to the outgoing lines of all access points are different, step S206 is executed.

[0061] S205: The mapping relationship between the outgoing line of the output access point and the first target distribution station is used as the only first-class comparison and selection scheme.

[0062] Continuing with the above example, if pd, pe, and pf are the same distribution station, then S1→pd, S2→pd, S3→pd can be output as the only first-class selection solution, or S1→pe, S2→pe, S3→pe can be output as the only first-class selection solution, or S1→pf, S2→pf, S3→pf can be output as the only first-class selection solution.

[0063] S206: Determine whether there is an intersection distribution station among the distribution stations corresponding to the outgoing lines of different access points.

[0064] Assume that the distribution stations corresponding to the outgoing lines of S1 access point include p1, p2 and p3, and the distribution stations corresponding to the outgoing lines of S2 access point include p1, p4 and p5. Then, the corresponding intersection distribution station of S1 and S2 outgoing lines is p1.

[0065] Specifically, if there is an intersection distribution station among the distribution stations corresponding to the outgoing lines of different access points, step S207 is executed; if there is no intersection distribution station among the distribution stations corresponding to the outgoing lines of different access points, step S205 is executed.

[0066] Continuing with the above example, if there is no intersection distribution station, S1→pd, S2→pe, S3→pf are output as the only first-class alternative.

[0067] S207: Output two first-class comparison solutions.

[0068] Among them, one first-category comparison and selection scheme is a mapping relationship between an access point outgoing line and a first target distribution station, and another first-category comparison and selection scheme is a mapping relationship between an access point outgoing line and a second target distribution station; the second target distribution station is determined according to the number of intersection distribution stations.

[0069] In the specific implementation process of the present application, if the number of intersection distribution stations is 1, the intersection distribution station is directly used as the second target distribution station. For example, the intersection distribution station of access point S1 and access point S2 is pg, the first target distribution station corresponding to access point S1 when it goes out is pd, the first target distribution station corresponding to access point S2 when it goes out is pe, and the first target distribution station corresponding to access point S3 when it goes out is pf, then S1→pg, S2→pg, S3→pd are output as one of the first category selection schemes, and S1→pd, S2→pe, S3→pf are output as another first category selection scheme.

[0070] If the number of intersection distribution stations is greater than 1, that is, there are multiple intersection distribution stations, then the intersection distribution station with the smallest sum of distances from the intersection distribution station to all access points is selected from the multiple intersection distribution stations as the target intersection distribution station. If there are still multiple target intersection distribution stations at this time, the target intersection distribution station with the largest design power load will be selected as the second target distribution station.

[0071] S103: Determine the power source property of the access point according to the maximum available power supply capacity of the access point, characteristic information of each load unit under the access point, and the power distribution station and distance corresponding to the outgoing line of the access point.

[0072] Optionally, in another embodiment of the present application, an implementation of step S103 specifically includes the following steps:

[0073] S301: When the number of access points is 1, determine the power source property of the access point according to the maximum available power supply capacity of the access point and characteristic information of each load unit under the access point.

[0074] Among them, the characteristic information of the load unit includes: the proportion of loads above level 2 and the designed electrical load.

[0075] Optionally, in another embodiment of the present application, an implementation of step S301 specifically includes the following steps:

[0076] S401: When the number of access points is 1, determine whether the sum of the secondary load proportions and above of all load units under the access point is greater than the secondary load critical proportion.

[0077] Among them, the critical proportion of the secondary load can be preset and changed by technicians, experts, etc., and is not limited here.

[0078] Specifically, if it is determined that the sum of the second-level and above load proportions of all load units under the access point is greater than the second-level load critical proportion, step S402 is executed; if it is determined that the sum of the second-level and above load proportions of all load units under the access point is not greater than the second-level load critical proportion, step S403 is executed.

[0079] S402: Generate first prompt information.

[0080] The first prompt information is used to prompt the user that the current number of access points cannot meet the design load level requirement, and it is recommended to add a new access point or increase a self-provided power supply.

[0081] It should be noted that, in the specific implementation process of the present application, after the first prompt message is generated, step S403 may be continued to perform further analysis.

[0082] S403: Determine whether the maximum available power supply capacity of the access point is greater than or equal to the product of the sum of the design power loads of all load units under the access point and the load margin coefficient.

[0083] Among them, the load margin coefficient can be preset and changed by technicians, experts, etc., and is not limited here.

[0084] Specifically, if it is determined that the maximum available power supply capacity of the access point is greater than or equal to the product of the sum of the design electrical loads of all load units under the access point and the load margin coefficient, step S404 is executed; if it is determined that the maximum available power supply capacity of the access point is less than the product of the sum of the design electrical loads of all load units under the access point and the load margin coefficient, step S405 is executed.

[0085] S404: Determine that the power source nature of the access point is primary supply.

[0086] S405: Generate second prompt information.

[0087] The second prompt information is used to prompt the user that the maximum available power supply capacity of the current access point cannot meet the design requirements, and it is recommended to add a new access point or adjust the maximum available power supply capacity of the access point.

[0088] It should be noted that in the specific implementation process of the present application, after the user adjusts the maximum available power supply capacity of the access point so that it is greater than or equal to the product of the sum of the design electrical loads of all load units under the access point and the load margin coefficient, the power supply nature of the access point can be determined as the main supply.

[0089] S302: When the number of access points is greater than 1, for each access point, determine whether the access point can be powered independently.

[0090] Optionally, in another embodiment of the present application, an implementation of step S302 includes:

[0091] For each access point, it is determined whether the maximum available power supply capacity of the access point is greater than or equal to the product of the sum of the design electrical loads of all load units under the access point and the load margin coefficient.

[0092] Specifically, if it is determined that the maximum available power supply capacity of the access point is greater than or equal to the product of the sum of the design electrical loads of all load units under the access point and the load margin coefficient, it is determined that the access point can be powered independently; if it is determined that the maximum available power supply capacity of the access point is less than the product of the sum of the design electrical loads of all load units under the access point and the load margin coefficient, it is determined that the access point cannot be powered independently.

[0093] S303, determining the power supply property of each access point according to the number of access points that can be independently powered, the maximum available power supply capacity of the access point, the characteristic information of each load unit under the access point, and the distribution station and distance corresponding to the access point outgoing line.

[0094] Optionally, in another embodiment of the present application, if the number of access points that can be independently powered is 0, an implementation of step S303 specifically includes the following steps:

[0095] S501: If the number of access points that can be independently powered is 0, determine whether the sum of the maximum available power supply capacities of all access points is greater than or equal to the sum of the designed electrical loads of all load units under all access points.

[0096] Specifically, if it is determined that the sum of the maximum available power supply capacities of all access points is greater than or equal to the sum of the designed electrical loads of all load units under all access points, step S502 is executed; if it is determined that the sum of the maximum available power supply capacities of all access points is less than the sum of the designed electrical loads of all load units under all access points, step S503 is executed.

[0097] S502: Determine that the power source property of each access point is the main power supply.

[0098] S503: Generate third prompt information.

[0099] The third prompt information is used to prompt the user that the maximum available power supply capacity of the current access point cannot meet the design requirements, and it is recommended to add an access point or adjust the maximum available power supply capacity.

[0100] S504: For each access point, calculate the maximum available power supply capacity of the access point under assumed conditions to obtain an assumed access point.

[0101] The assumptions are set and changed by the user and are not limited here.

[0102] Specifically, the maximum available power supply capacity of access point i under the assumed conditions = the maximum available power supply capacity of access point i * the design charge / sum (maximum available power supply capacity of access point i). The maximum available power supply capacity of the assigned access point is the maximum available power supply capacity of access point i under the assumed conditions, which is used as the assumed access point.

[0103] S505: Determine that the power source property of each assumed access point is the primary power source.

[0104] Optionally, in another embodiment of the present application, if the number of access points that can be independently powered is greater than or equal to 1, an implementation of step S303 specifically includes the following steps:

[0105] S601: If the number of the access points capable of independent power supply is 1, the power source nature of the access points capable of independent power supply is set to primary power supply.

[0106] S602: Determine whether the sum of the load proportions of level 2 and above of all load units under the main supply access point is greater than the critical load proportion of level 2.

[0107] Specifically, if it is determined that the sum of the proportions of the second-level loads and above of all load units under the main supply access point is not greater than the critical proportion of the second-level load, step S603 is executed; if it is determined that the sum of the proportions of the second-level loads and above of all load units under the main supply access point is greater than the critical proportion of the second-level load, step S604 is executed.

[0108] S603: Determine that the power properties of access points other than the main access point are useless.

[0109] It should be noted that useless access points do not need to be considered for selection, and the nodes and adjacent edges are directly removed from the graph structure.

[0110] S604: For each access point other than the main supply access point, determine whether the maximum available power supply capacity of the access point other than the main supply access point is greater than the sum of the secondary and above electrical loads of all load units under all access points.

[0111] Specifically, if it is determined that the maximum available power supply capacity of access points other than the main supply access point is greater than the sum of the secondary and above electrical loads of all load units under all access points, step S605 is executed; if it is determined that the maximum available power supply capacity of access points other than the main supply access point is not greater than the sum of the secondary and above electrical loads of all load units under all access points, step S606 is executed.

[0112] S605: Determine that the power source nature of the access points other than the main access point is standby.

[0113] S606: Generate fourth prompt information.

[0114] The fourth prompt information is used to prompt the user that the maximum available power supply capacity of the current access point cannot meet the backup demand, and it is recommended to add a new access point or increase a self-provided power supply.

[0115] It should be noted that, in the specific implementation process of the present application, after the user adds a new access point or increases a self-contained power supply, the user can determine the power nature of the access points other than the main access point as backup.

[0116] S607: If the number of access points that can be independently powered is greater than or equal to 2, the access point that can be independently powered and has the shortest distance from the power distribution station corresponding to the outgoing lines of all access points that can be independently powered is determined as the main access point, and step S602 is executed.

[0117] S104: Determine a second type of comparison scheme according to a mapping relationship between the distribution station and the load unit and characteristic information of the load unit.

[0118] Optionally, in another embodiment of the present application, an implementation of step S104 specifically includes the following steps:

[0119] S701. Obtain intersection load units between different distribution stations.

[0120] For example: there is a mapping relationship between distribution station A and load unit 1, load unit 2 and load unit 3, and there is a mapping relationship between distribution station B and load unit 2, load unit 3 and load unit 4, then the intersection load units between distribution station A and distribution station B are load unit 2 and load unit 3.

[0121] S702: For each intersection load unit, if the load level of the intersection load unit is the same as the load level of other load units under only one first target distribution station, the mapping relationship between the intersection load unit and the first target distribution station is used as the first mapping relationship.

[0122] The first target distribution station is a distribution station that has a mapping relationship with the intersection load unit.

[0123] Continuing with the above example, if the intersection load units between distribution station A and distribution station B are load unit 2 and load unit 3, obtain the load level of load unit 2 (intersection load unit), and compare the load level of load unit 2 with the load level of the load unit except that meets unit 2 under the first target distribution station (i.e., the distribution station that has a mapping relationship with load unit 2). If the load level of load unit 2 is the same as the load level of the load unit except that meets unit 2 under the first target distribution station (i.e., the distribution station that has a mapping relationship with load unit 2), only the mapping relationship between load unit 2 and the first target distribution station is retained as the first mapping relationship.

[0124] For example: load unit 1 has a mapping relationship with distribution station A and distribution station B, distribution station A has a mapping relationship with load unit 2, distribution station B has a mapping relationship with load unit 3 and load unit 4, the load level of load unit 1 is level one, the load level of load unit 2 is level three, the load level of load unit 3 is level three, and the load level of load unit 4 is level one. It can be seen that load unit 1 only has the same load level with load unit 4. At this time, only the mapping relationship between load unit 1 and distribution station B is retained.

[0125] S703. If the load level of the intersection load unit is different from or the same as the load levels of other load units under each first target distribution station, the second target distribution station is determined based on the yearly load utilization rate of the intersection load unit, the yearly load utilization rate of other load units under the first target distribution station, and the critical deviation value of the utilization rate.

[0126] Optionally, in another embodiment of the present application, an implementation of step S703 specifically includes the following steps:

[0127] S801. Calculate the load capacity utilization rate of each first target distribution station year by year.

[0128] The yearly load utilization rate of the first target distribution station is the weighted average of the yearly load utilization rates of all load units in the first target distribution station.

[0129] S802. For each first target distribution station, the deviation value of the first target distribution station is calculated based on the yearly load utilization rate of the first target distribution station, the yearly load utilization rate of the intersection load unit, the yearly load utilization rate of other load units under the first target distribution station, and the critical deviation value of the utilization rate.

[0130] Assuming that there are two first target distribution stations, distribution station A and distribution station B, in the specific implementation process of this application, the deviation value of the first target distribution station (distribution station A) can be calculated in the following manner:

[0131] (sum(abs(the annual load utilization rate of distribution station A-the annual load utilization rate of the intersection load unit)-the critical deviation value of the annual load utilization rate);

[0132] The deviation value of the first target distribution station (distribution station B) can be calculated as follows:

[0133] (sum(abs(the annual load utilization rate of distribution station B-the annual load utilization rate of the intersection load unit)-the critical deviation value of the annual load utilization rate).

[0134] Among them, the critical deviation value of the load production rate year by year is preset by technicians, experts, etc. and is not limited here.

[0135] S803: If the product of the deviation values ​​of all the first target distribution stations is less than 0, the first target distribution station with the minimum deviation value among all the first target distribution stations is used as the second target distribution station.

[0136] S704: Use the mapping relationship between the intersection load unit and the second target distribution station as the first mapping relationship.

[0137] S705 . For each third target distribution station, the load units having a mapping relationship with the third target distribution station are combined into a distribution load unit set of the third target distribution station.

[0138] The third target distribution station is a distribution station in the first mapping relationship set, including the first target distribution station and the second target distribution station.

[0139] S706. For each fourth target distribution station, obtain a load unit that has a mapping relationship with the fourth target distribution station as a target load unit.

[0140] The fourth target distribution station is a distribution station other than the third target distribution station in the first mapping relationship set.

[0141] S707: All target load units of all fourth target distribution stations are combined into a distribution load unit set of other target distribution stations.

[0142] S708: If the distribution load unit set of the third target distribution station belongs to a subset of the distribution load unit sets of other target distribution stations, it is determined that the third target distribution station can be cancelled.

[0143] Specifically, there are Np third target distribution stations. Taking the N# third target distribution station as an example, all load units that have a mapping relationship with the N# third target distribution station are composed of the N# distribution load unit set, and other distribution stations other than the N# distribution station are used as the fourth target distribution station. All target load units of all fourth target distribution stations are composed of the distribution load unit set of the N# other distribution stations; it is determined whether the N# distribution load unit set belongs to the subset of the distribution load unit set of the N# other distribution stations. If it does, it is determined that the third target distribution station can be cancelled. Then, the next third target distribution station is selected to repeat S705 to S708, so as to obtain multiple third target distribution stations that can be cancelled.

[0144] S709: The third target distribution station with the largest designed electrical load that can be cancelled is used as the fifth target distribution station.

[0145] S710: Generate two second-class comparison and selection schemes according to the first mapping relationship set and the fifth target power distribution station.

[0146] Among them, one second category selection scheme is the mapping relationship between the distribution station and the load unit in the first mapping relationship set including the fifth target distribution station; another second category selection scheme is the mapping relationship between the distribution station and the load unit in the first mapping relationship set not including the fifth target distribution station.

[0147] S105 . Determine optimal path information between the access point and the distribution station according to the first type of comparison and selection scheme, the second type of comparison and selection scheme, and the adjacent relationship and distance of the distribution station.

[0148] The optimal path information between the access point and the distribution station includes the optimal path and distance between each access point and each distribution station, and the mapping relationship between the distribution station and the load unit under the optimal path between the access point and the distribution station.

[0149] Optionally, in another embodiment of the present application, an implementation of step S105 specifically includes the following steps:

[0150] S901. Generate a known adjacency table according to the first type of comparison and selection scheme, the second type of comparison and selection scheme, and the adjacency relationship and distance of the distribution stations.

[0151] First, according to the mapping relationship between the access point outgoing line and the distribution station in the first type of comparison scheme, a one-way graph is generated, access point → distribution station. According to the mapping relationship between the distribution station and the load unit in the second type of comparison scheme, a one-way graph is generated, distribution station → load unit. According to the adjacent relationship of the distribution station input by the user, a two-way graph is generated.

[0152] Then, number the access points, distribution stations, and load units:

[0153] For example: access points are numbered S1, S2, Si, distribution stations are numbered p1, p2, p3…pn, and load units are numbered I1, I2, I3…Ij.

[0154] Afterwards, the mapping relationship between the access point outgoing line and the distribution station in the first type of comparison scheme generates a one-way graph, access point → distribution station (Si→pn), node distance dist [Si, pn], and the mapping relationship between the distribution station and the load unit in the second type of comparison scheme generates a one-way graph, distribution station → load unit (pn→Ij), node distance dist [pn, Ij], and a two-way graph is generated according to the adjacent relationship of the distribution station input by the user. Node distance dist [pa, pb]. Thus generating a known adjacency list.

[0155] S902: Determine the optimal path and distance between each access point and each power distribution station by using a preset path algorithm and a known adjacency table.

[0156] In the specific implementation process of the present application, the preset path algorithm may be, but is not limited to, Dijkstra's algorithm, to determine the optimal path and distance between each access point and each power distribution station, which is not limited here.

[0157] like Figure 2 The figure shows a schematic diagram of a known adjacency table provided by the present application. Taking the access point S1 as an example, S1 has a unidirectional adjacency relationship with p3, p1 has a unidirectional adjacency relationship with p2, p2 has a unidirectional adjacency relationship with p1 and p3, p3 has a unidirectional adjacency relationship with p2 and p4, p4 has a unidirectional adjacency relationship with p3, p5, p6 and p7, p5 has a unidirectional adjacency relationship with p4, p6 has a unidirectional adjacency relationship with p4, p7 has a unidirectional adjacency relationship with p4 and p8, and p8 has a unidirectional adjacency relationship with p7. The schematic diagram of the corresponding adjacency table can be seen after calculating through Dijkstra's algorithm to determine the optimal path and distance between each access point and each distribution station. Figure 3 , Figure 3 The ∞ in the figure indicates that there is no adjacent substation.

[0158] It can be understood that the above example is only an example of how to generate the optimal path between the access point and the distribution station. In the specific implementation process of this application, after determining the optimal path between the access point and the distribution station, the optimal path between the distribution station and the load unit will also be confirmed, thereby obtaining the mapping relationship between the distribution station and the load unit under the optimal path between the access point and the distribution station.

[0159] S106: Determine a mapping relationship between a target access point and a power distribution station according to a power source property of the access point, a designed power load, a maximum available power supply capacity, and optimal path information between the access point and the power distribution station.

[0160] The target access point is an access point whose power source is primary.

[0161] Specifically, if there is only one access point whose power source nature is primary supply, a mapping relationship is established between the access point whose power source nature is primary supply and all the power distribution stations.

[0162] It is understandable that when there is only one access point with a primary power source, only all power distribution stations can be mapped to it.

[0163] If the power source nature of at least two access points is primary supply, an implementation method of determining the mapping relationship between the target access point and the power distribution station specifically includes the following steps:

[0164] S1201: If the power source nature of at least two access points is primary supply, determine whether the power distribution stations corresponding to the outgoing lines of the target access points are the same power distribution station.

[0165] The target access point is an access point whose power source is primary.

[0166] Specifically, if it is determined that the distribution stations corresponding to the outgoing lines of the target access point are the same distribution station, step S1202 is executed; if it is determined that the distribution stations corresponding to the outgoing lines of the target access point are not the same distribution station, step S1203 is executed.

[0167] S1202: Filter the optimal path information between the access point and the power distribution station according to a first preset filtering scheme to obtain a first filtering result.

[0168] Optionally, in another embodiment of the present application, an implementation of step S1202 specifically includes the following steps:

[0169] S1301: Sort the target access points in ascending order according to their maximum available power supply capacities to obtain a first sorting result.

[0170] Taking two target access points as an example, target access point A and target access point B, the target access point A and the target access point B are sorted from small to large according to the maximum available power supply capacity and the maximum available power supply capacity of the target access point A and the target access point B, to obtain a first sorting result.

[0171] S1302: Determine the critical design electrical load of the target access point according to the order of the target access points in the first sorting result.

[0172] Assuming that the maximum available power supply capacity of the target access point A is smaller than the maximum available power supply capacity of the target access point B, the critical design power load of the target access point A is first determined.

[0173] In the specific implementation process of the present application, the specific implementation method of determining the critical design electrical load of the target access point is: taking the target access point A as an example, judging whether the maximum available power supply capacity of the target access point A is greater than or equal to the load margin coefficient*the design electrical load of the target access point A / the number of target access points; if it is judged that the maximum available power supply capacity of the target access point A is greater than or equal to the load margin coefficient*the design electrical load of the target access point A / the number of target access points, the critical design electrical load of the target access point A is confirmed as the load margin coefficient*the design electrical load of the target access point A / the number of target access points; if it is judged that the maximum available power supply capacity of the target access point A is less than the load margin coefficient*the design electrical load of the target access point A / the number of target access points, the critical design electrical load of the target access point A is confirmed as the maximum available power supply capacity of the target access point A.

[0174] S1303: Sort all the distribution stations for which mapping relationships have not been determined and the distribution stations corresponding to the outgoing lines of the target access point in ascending order of distance to obtain a second sorting result.

[0175] For example: there are distribution station x with an undetermined mapping relationship and distribution station y with an undetermined mapping relationship. The distance between distribution station x with an undetermined mapping relationship and the distribution station corresponding to the outgoing line of the target access point is 1 km, and the distance between distribution station y with an undetermined mapping relationship and the distribution station corresponding to the outgoing line of the target access point is 0.5 km. Then the second sorting result is generated, distribution station y with an undetermined mapping relationship-distribution station x with an undetermined mapping relationship.

[0176] S1304: According to the order of the distribution stations with undetermined mapping relationships in the second sorting result, assuming that a mapping relationship is established between the distribution stations with undetermined mapping relationships and the target access point, calculate the design electrical load of the target access point at this time.

[0177] S1305: Determine whether the design electrical load of the target access point at this time is greater than the critical design electrical load of the target access point.

[0178] Specifically, if the design electrical load of the target access point at this time is not greater than the critical design electrical load of the target access point, step S1306 is executed; if the design electrical load of the target access point at this time is greater than the critical design electrical load of the target access point, step S1307 is executed.

[0179] S1306. Establish a mapping relationship between the distribution station with an undetermined mapping relationship and the target access point to obtain the first screening data, select the next distribution station with an undetermined mapping relationship in the second sorting result, return to execute S1304, assume that the distribution station with an undetermined mapping relationship establishes a mapping relationship with the target access point, and calculate the design electrical load step of the target access point at this time.

[0180] That is to say, after adding the distribution station with an undetermined mapping relationship to the mapping relationship between the target node and the distribution station, calculate whether the design electrical load of the target node exceeds the critical design electrical load of the target access point. If it does not exceed it, add this distribution station with an undetermined mapping relationship to the mapping relationship between the target node and the distribution station, and select the next distribution station with an undetermined mapping relationship in the second sorting result to see whether the next distribution station with an undetermined mapping relationship in the second sorting result can also be added to the mapping relationship between the target node and the distribution station.

[0181] S1307: Select the next target access point in the first sorting result.

[0182] Specifically, after selecting the next target access point in the first sorting result, the process returns to S1302 to execute the step of determining the critical design electrical load of the target access point.

[0183] That is to say, after adding the distribution station with an undetermined mapping relationship to the mapping relationship between the target node and the distribution station, calculate whether the design electrical load of the target node exceeds the critical design electrical load of the target access point. If it exceeds, the distribution station with an undetermined mapping relationship cannot be added to the mapping relationship between the target node and the distribution station. Therefore, it is necessary to select the next target access point in the first sorting result to determine whether the distribution station with an undetermined mapping relationship can be added to the next target access point in the first sorting result.

[0184] S1308. Generate a first screening result based on all the first screening data.

[0185] S1203: Filter the optimal path information between the access point and the power distribution station according to the second preset screening scheme to obtain a preliminary selection result.

[0186] In the specific implementation process of the present application, the target access point closest to the power distribution station may be determined by, but not limited to, for each power distribution station in the optimal path information between the access point and the power distribution station.

[0187] Then, a mapping relationship is established between the distribution station and the target access point closest to the distribution station to obtain preliminary selection data. Finally, a preliminary selection result is generated based on all the preliminary selection data.

[0188] S1204. Screen the preliminary selection results according to the designed electrical load of the access point, the maximum available power supply capacity of the access point, and the distance from the access point to the power distribution station to obtain a second screening result.

[0189] Optionally, in another embodiment of the present application, an implementation of step S1204 specifically includes the following steps:

[0190] S1401: For each target access point in the preliminary selection result, determine whether the target access point meets a preset condition.

[0191] The preset condition is that the maximum available power supply capacity of the target access point is greater than or equal to the product of the load margin coefficient and the design power load of the target access point.

[0192] Specifically, if each target access point meets the preset condition, step S1402 is executed; if any target access point does not meet the preset condition, step S1403 is executed.

[0193] S1402. Generate a second screening result according to the preliminary selection result.

[0194] S1403: Use the target access point as an access point to be screened.

[0195] S1404: For each access point to be screened, use the power distribution station corresponding to the access point to be screened as the power distribution station to be determined, and sort the access points to be screened from large to small according to the distance between the access points to be screened and the power distribution station to be determined, to obtain a third sorting result.

[0196] S1405: Determine whether the sum of the design power loads of all the to-be-determined distribution stations in the third sorting result is less than the maximum available power supply capacity of the to-be-screened access point.

[0197] Specifically, if it is determined that the sum of the design electrical loads of all the distribution stations to be determined in the third sorting result is not less than the maximum available power supply capacity of the access point to be screened, step S1406 is executed; if it is determined that the sum of the design electrical loads of all the distribution stations to be determined in the third sorting result is less than the maximum available power supply capacity of the access point to be screened, step S1407 is executed.

[0198] S1406: After eliminating the to-be-determined distribution station with the largest distance between the to-be-screened access point and the to-be-determined distribution station in the third sorting result, a new third sorting result is obtained, and the process returns to execute step S1405.

[0199] It can be understood that when the sum of the design electrical loads of all the distribution stations to be determined in the third sorting result is not less than the maximum available power supply capacity of the access point to be screened, it means that the current access point to be screened cannot withstand the sum of the design negative charges of all the distribution stations to be determined in the third sorting result. Therefore, it is necessary to eliminate the distribution stations to be determined in order from large to small according to the distance between the access point to be screened and the distribution station to be determined in the third sorting result, until the sum of the design electrical loads of all the distribution stations to be determined in the third sorting result is less than the maximum available power supply capacity of the access point to be screened.

[0200] It should be noted that the removed distribution stations cannot establish a mapping relationship with the original access points again.

[0201] S1407: Generate a set of eliminated distribution stations of the target access point according to all the eliminated to-be-determined distribution stations.

[0202] S1408: If the number of target access points that meet the preset condition is 1, a mapping relationship is established between a distribution station in the set of distribution stations to be excluded of each target access point and an access point that does not need to be excluded, to obtain second screening data.

[0203] The target access points meeting the preset conditions are target access points whose maximum available power supply capacity is greater than or equal to the product of the load margin coefficient and the designed power load of the target access point.

[0204] S1409: If the number of target access points meeting the preset condition is not 1, for each target access point, sort the target excluded substations in the excluded substation set of the target access point in ascending order according to the distance to the target access point meeting the preset condition, to obtain a fourth sorting result.

[0205] S1410. According to the order of the target eliminated distribution stations in the fourth sorting result, a mapping relationship is established between the target eliminated distribution stations and the target access points meeting the preset conditions, and the design electrical load of the target access points meeting the preset conditions is calculated.

[0206] S1411. Determine whether the maximum available power supply capacity of the target access point that meets the preset conditions is greater than or equal to the designed power load of the target access point that meets the preset conditions.

[0207] Specifically, if it is determined that the maximum available power supply capacity of the target access point that meets the preset conditions is greater than or equal to the designed power load of the target access point that meets the preset conditions, step S1412 is executed; if it is determined that the maximum available power supply capacity of the target access point that meets the preset conditions is less than the designed power load of the target access point that meets the preset conditions, step S1414 is executed.

[0208] S1412: Determine to establish a mapping relationship between the target excluded distribution substation and the target access point that meets the preset conditions to obtain second screening data.

[0209] S1413. Select the next target elimination distribution station in the fourth sorting result, establish a mapping relationship between the target elimination distribution station and the target access point that meets the preset conditions, and calculate the design electrical load of the target access point that meets the preset conditions, until the maximum available power supply capacity of the target access point that meets the preset conditions is less than the design electrical load of the target access point that meets the preset conditions.

[0210] It can be understood that by calculating the design electrical load of the target access point that meets the preset conditions after adding the target exclusion distribution station, and comparing it with the maximum available power supply capacity of the target access point that meets the preset conditions, if the maximum available power supply capacity of the target access point that meets the preset conditions is greater than or equal to the design electrical load of the target access point that meets the preset conditions, it means that the target exclusion distribution station can establish a mapping relationship with the target access point that meets the preset conditions, and select the next target exclusion distribution station in the fourth sorting result, and continue to execute the mapping relationship between the distribution station and the target access point that meets the preset conditions, and see whether the target exclusion distribution station can continue to be added to the mapping relationship between the target access point that meets the preset conditions and the distribution station.

[0211] S1414. Generate a second screening result based on all the second screening data.

[0212] S1205: Use the first screening result and the second screening result as a mapping relationship between the target access point and the power distribution station.

[0213] S107: Generate a third analog selection scheme according to the mapping relationship between the target access point and the distribution station, the grid structure form, and the adjacent relationship and distance between the distribution stations.

[0214] It should be noted that when the user fills in the distribution network interface, if the user is not sure about the grid structure form, he can choose automatic recommendation in the grid structure. If the user is sure about the grid structure form, he can independently choose series or radial in the grid structure.

[0215] In the specific implementation process of the present application, if the user fills in the grid structure form as radial, according to the mapping relationship between the target access point and the distribution station, the mapping relationship between the access point and the distribution station, the adjacent relationship and the distance of the distribution station, a unique third category selection scheme is generated according to the first preset generation scheme; if the user fills in the grid structure form as serial, according to the mapping relationship between the target access point and the distribution station, the mapping relationship between the access point and the distribution station, the adjacent relationship and the distance of the distribution station, a unique third category selection scheme is generated according to the second preset generation scheme; if the user is not sure about the grid structure form, and selects automatic recommendation in the grid structure, then according to the grid structure form as radial, according to the mapping relationship between the target access point and the distribution station, the mapping relationship between the access point and the distribution station, the adjacent relationship and the distance of the distribution station, a third category selection scheme is generated according to the first preset generation scheme, and according to the grid structure form as serial, according to the mapping relationship between the target access point and the distribution station, the mapping relationship between the access point and the distribution station, the adjacent relationship and the distance of the distribution station, another third category selection scheme is generated according to the second preset generation scheme.

[0216] In the specific implementation process of the present application, if the grid structure is radial, then according to the mapping relationship between the target access point and the distribution station, the mapping relationship between the access point and the distribution station, the adjacent relationship and distance of the distribution station, the second preset generation scheme is used to generate an implementation method of the third analog selection scheme, including:

[0217] First, a mapping relationship is established between the distribution station corresponding to the target access point outgoing line in the mapping relationship between the target access point and the distribution station and the distribution station in the mapping relationship between the access point and the distribution station. For example, when the target access point Si outgoing line corresponds to the distribution station pk, the distribution stations in the mapping relationship between the access point and the distribution station include distribution station p1, distribution station p2…distribution station pn, then a one-way graph distribution station pk→distribution station p1, distribution station pk→distribution station p2…distribution station pk→distribution station pn is generated, and then the distances between distribution station pk→distribution station p1, distribution station pk→distribution station p2…distribution station pk→distribution station pn are calculated in combination with the known adjacent relationship of distribution stations and the distance dist(pk, pj).

[0218] The specific calculation logic is: dist(pk, pj) = dist(pk, pi) + dist(pi, pj), for example: the distance between distribution station 3 and distribution station 1 = the distance between distribution station 3 and distribution station 2 + the distance between distribution station 2 and distribution station 1; the distance between distribution station 3 and distribution station 2 = the distance between distribution station 2 and distribution station 3; the distance between distribution station 3 and distribution station n = the distance between distribution station 3 and distribution station 4 + ... + the distance between distribution station n-1 and distribution station n.

[0219] Finally, the obtained adjacency relationship and distance between the distribution stations are used as the only third-class alternative.

[0220] In the specific implementation process of the present application, if the grid structure is in series, then according to the mapping relationship between the target access point and the distribution station, the mapping relationship between the access point and the distribution station, the adjacent relationship and distance of the distribution station, the second preset generation scheme is used to generate a unique third analog selection scheme, which specifically includes the following steps:

[0221] S1501: Determine whether the number of target access points is 1.

[0222] Specifically, if it is determined that the number of target access points is 1, step S1502 is executed; if the number of target access points is not 1, step S1503 is executed.

[0223] S1502: Generate a unique third-category comparison solution according to the adjacency table corresponding to the optimal path information between the access point and the power distribution station.

[0224] S1503: Cancel the distribution stations that are not in the mapping range of the target access point in the distribution station adjacency relationship, and obtain the target distribution station adjacency relationship.

[0225] For example: Given an adjacency list such as Figure 3 As shown, if p1, p3, p5, p7 have a mapping relationship with access point S1, if p2, p4, p6, p8 are no longer in the mapping range of S1, then p2, p4, p6, p8 are gradually cancelled. Specifically: extract the adjacency table data containing p2, for example: p2→p1, p3→p2 p4, then substitute the adjacency relationship of p2 into other modules to obtain p3→p1 p4, dist(p3, p1)=dist(p3, p2)+dist(p2, p1), and obtain the adjacency table after canceling p2. Then, extract the adjacency table data containing p4, for example: p3→p1 p4, p4→p5 p6 p7, then substitute the adjacency relationship of p4 into the adjacency table after canceling p2, and obtain the adjacency table after canceling p2 and p4. By analogy, finally obtain the adjacency table after canceling p2, p4, p6, p8 as the target distribution station adjacency relationship.

[0226] S1504: Generate a unique third-category comparison scheme according to the target distribution station adjacency relationship.

[0227] S108. Arrange and combine the first type of comparison schemes, the second type of comparison schemes, and the third type of comparison schemes to obtain a set of recommended grid structure schemes.

[0228] In the specific implementation process of the present application, assuming that there are two first-category selection schemes A and B, two second-category selection schemes X and Y, and two third-category selection schemes M and N, then by arranging and combining the first-category selection schemes, the second-category selection schemes and the third-category selection schemes, 8 recommended grid structure schemes can be obtained: AXM, AYM, AXN, AYN, BXM, BYM, BXN, BYN; if there are two first-category selection schemes A and B, two second-category selection schemes X and Y, and one third-category selection scheme M, then by arranging and combining the first-category selection schemes, the second-category selection schemes and the third-category selection schemes, 4 recommended grid structure schemes can be obtained: AXM, AYM, BXM, BYM.

[0229] S109. For each recommended grid structure solution in the recommended grid structure solution set, determine an incremental investment payback period of the recommended grid structure solution.

[0230] Optionally, in another embodiment of the present application, an implementation of step S109 specifically includes the following steps:

[0231] S1601. For each recommended grid structure solution in the recommended grid structure solution set, select distribution station equipment and cables for the recommended grid structure solution to obtain a configuration result of the recommended grid structure solution.

[0232] Specifically, as shown in Table 1, it is a configuration result of a recommended grid structure solution provided in an embodiment of the present application.

[0233]

[0234]

[0235] Table 1

[0236] S1602. Calculate the construction investment of the recommended grid structure scheme and the basic variable cost of the recommended grid structure scheme based on the configuration results of the recommended grid structure scheme.

[0237] For each recommended grid structure scheme, its investment estimate, operating cost (assessed according to the basic electricity fee = capacity billing method) and line loss are calculated. The investment estimation method, basic electricity fee calculation method and line loss calculation method are general rules. Table 2 shows an example of investment, operation and loss calculation for grid structure comparison.

[0238] Among them, Plan k_Construction investment = Plan k_Project cost + Plan k_Project construction and others + Plan k_Basic reserve;

[0239] Plan k_basic variable cost = Plan k_basic electricity fee + Plan k_line loss cost + Plan k_annual operation and maintenance cost.

[0240] Among them, the benchmark investment is the lowest construction investment among all recommended grid structure solutions; the benchmark operating cost is the basic variable cost of the benchmark investment.

[0241]

[0242]

[0243] Table 2

[0244] S1603. For each recommended grid structure scheme, determine the incremental investment payback period of the recommended grid structure scheme based on the construction investment of the recommended grid structure scheme and the basic variable cost of the recommended grid structure scheme.

[0245] Specifically, plan k_incremental investment payback period = plan k_incremental investment / plan k_incremental operating cost.

[0246] S110. Determine the optimal grid structure solution based on the incremental investment payback periods of all recommended grid structure solutions.

[0247] Among them, if there are multiple recommended grid structure schemes with incremental investment payback periods greater than 0 and less than or equal to the critical incremental investment payback period, the recommended grid structure scheme with the largest incremental investment payback period will be regarded as the optimal grid structure scheme; if there is no recommended grid structure scheme with an incremental investment payback period greater than 0 or greater than the critical incremental investment payback period, the recommended grid structure scheme corresponding to the benchmark investment will be regarded as the optimal grid structure scheme; the benchmark investment is the lowest construction investment among all recommended grid structure schemes.

[0248] It can be seen from the above scheme that the present application provides a method for recommending a distribution network grid structure scheme. First, based on the resource condition recognition data input by the user: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station, a first category comparison scheme, a second category comparison scheme and a third category comparison scheme are generated. Then, the first category comparison scheme, the second category comparison scheme and the third category comparison scheme are arranged and combined to obtain a set of recommended grid structure schemes. Then, for each recommended grid structure scheme in the recommended grid structure scheme set, the incremental investment payback period of each recommended grid structure scheme in the recommended grid structure scheme set is determined. Finally, according to the incremental investment payback period of all recommended grid structure schemes, the optimal grid structure scheme is determined, thereby realizing efficient and rapid planning of the optimal grid structure scheme for the distribution network.

[0249] The present application embodiment provides a recommended device for a power distribution network grid structure solution, such as Figure 4 As shown, specifically including:

[0250] The receiving unit 401 is used to receive resource condition recognition data input by a user.

[0251] Among them, the resource condition recognition data include: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station.

[0252] The first type comparison scheme generating unit 402 is used to determine the first type comparison scheme according to the power distribution station and the distance corresponding to the outgoing line of the access point.

[0253] The power property determination unit 403 is used to determine the power property of the access point according to the maximum available power supply capacity of the access point, the characteristic information of each load unit under the access point, and the power distribution station and distance corresponding to the outgoing line of the access point.

[0254] The second type comparison scheme generating unit 404 is used to determine the second type comparison scheme according to the mapping relationship between the distribution station and the load unit and the characteristic information of the load unit.

[0255] The first mapping relationship determination unit 405 is used to determine the optimal path information between the access point and the distribution station according to the first type of comparison and selection scheme, the second type of comparison and selection scheme, and the adjacent relationship and distance of the distribution station.

[0256] The optimal path information between the access point and the power distribution station includes the optimal path and distance between each access point and each power distribution station.

[0257] The second mapping relationship determining unit 406 is used to determine the mapping relationship between the target access point and the power distribution station according to the power source property, the designed power load, the maximum available power supply capacity, and the optimal path information between the access point and the power distribution station.

[0258] The target access point is an access point whose power source is primary.

[0259] The third type comparison scheme generating unit 407 is used to generate a third type comparison scheme according to the mapping relationship between the target access point and the power distribution station, the grid structure form, and the adjacent relationship and distance between the power distribution stations.

[0260] The combination unit 408 is used to arrange and combine the first type of comparison schemes, the second type of comparison schemes and the third type of comparison schemes to obtain a set of recommended grid structure schemes.

[0261] The incremental investment payback period determination unit 409 is used to determine the incremental investment payback period of each recommended grid structure scheme in the recommended grid structure scheme set.

[0262] The optimal grid structure solution determining unit 410 is used to determine the optimal grid structure solution according to the incremental investment payback periods of all recommended grid structure solutions.

[0263] Among them, if there are multiple recommended grid structure schemes with incremental investment payback periods greater than 0 and less than or equal to the critical incremental investment payback period, the recommended grid structure scheme with the largest incremental investment payback period will be regarded as the optimal grid structure scheme; if there is no recommended grid structure scheme with an incremental investment payback period greater than 0 or greater than the critical incremental investment payback period, the recommended grid structure scheme corresponding to the benchmark investment will be regarded as the optimal grid structure scheme; the benchmark investment is the lowest construction investment among all recommended grid structure schemes.

[0264] For the specific working process of the units disclosed in the above embodiments of the present application, please refer to the corresponding method embodiments, such as Figure 1 As shown, no further description is given here.

[0265] It can be seen from the above scheme that the present application provides a device for recommending a distribution network grid structure scheme. First, based on the resource condition recognition data input by the user: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station, a first type of comparison scheme, a second type of comparison scheme and a third type of comparison scheme are generated. Then, the first type of comparison scheme, the second type of comparison scheme and the third type of comparison scheme are arranged and combined to obtain a set of recommended grid structure schemes. Then, for each recommended grid structure scheme in the recommended grid structure scheme set, the incremental investment payback period of each recommended grid structure scheme in the recommended grid structure scheme set is determined. Finally, according to the incremental investment payback periods of all recommended grid structure schemes, the optimal grid structure scheme is determined, thereby realizing efficient and rapid planning of the optimal grid structure scheme for the distribution network.

[0266] Another embodiment of the present application provides an electronic device, including:

[0267] One or more processors.

[0268] A storage device having one or more programs stored thereon.

[0269] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for recommending a distribution network grid structure solution as described in any one of the above embodiments.

[0270] Another embodiment of the present application provides a computer storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for recommending a distribution network grid structure solution as described in any one of the above embodiments is implemented.

[0271] In the context of the present application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0272] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0273] Another embodiment of the present application provides a computer program product, which, when executed, is used to execute any of the above-mentioned methods for recommending a distribution network grid structure solution.

[0274] Although the subject matter has been described in language specific to structural features and / or method logic actions, it should be understood that the subject matter defined in this application is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing this application.

[0275] Although several specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present application. Certain features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0276] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above application concept. For example, the above features are replaced with (but not limited to) technical features with similar functions applied in the present application.

Claims

1. A method for recommending a distribution network grid structure scheme, characterized in that: include: Receive resource condition recognition data input by the user; wherein the resource condition recognition data includes: the distribution station and distance corresponding to the access point outgoing line, the mapping relationship between the distribution station and the load unit, the grid structure form, and the adjacent relationship and distance of the distribution station; Determine a first type of comparison scheme according to the distribution station and distance corresponding to the outgoing line of the access point; Determine the power source nature of the access point based on the maximum available power supply capacity of the access point, the characteristic information of each load unit under the access point, and the distribution station and distance corresponding to the outgoing line of the access point; Determine a second type of comparison scheme according to the mapping relationship between the distribution station and the load unit and the characteristic information of the load unit; According to the first type of comparison and selection scheme, the second type of comparison and selection scheme and the adjacent relationship and distance of the distribution station, the optimal path information between the access point and the distribution station is determined; wherein the optimal path information between the access point and the distribution station includes the optimal path and distance between each access point and each distribution station; Determine the mapping relationship between the target access point and the distribution station according to the power source property, the designed power load, the maximum available power supply capacity, and the optimal path information between the access point and the distribution station; wherein the target access point is an access point with the power source property of primary supply; Generate a third type of comparison scheme according to the mapping relationship between the target access point and the distribution station, the grid structure form, and the adjacent relationship and distance between the distribution stations; Arrange and combine the first type of comparison schemes, the second type of comparison schemes and the third type of comparison schemes to obtain a set of recommended grid structure schemes; For each recommended grid structure solution in the set of recommended grid structure solutions, determining an incremental investment payback period of the recommended grid structure solution; The optimal grid structure scheme is determined based on the incremental investment payback periods of all the recommended grid structure schemes; if there are multiple recommended grid structure schemes whose incremental investment payback periods are greater than 0 and less than or equal to the critical incremental investment payback period, the recommended grid structure scheme with the largest incremental investment payback period is used as the optimal grid structure scheme; if there is no recommended grid structure scheme whose incremental investment payback period is greater than 0 or greater than the critical incremental investment payback period, the recommended grid structure scheme corresponding to the benchmark investment is used as the optimal grid structure scheme; the benchmark investment is the lowest construction investment among all recommended grid structure schemes.

2. The method for recommending a distribution network grid structure scheme according to claim 1, characterized in that: Determining the first type of comparison and selection scheme according to the distribution station and distance corresponding to the outgoing line of the access point includes: Determine whether the number of distribution stations corresponding to all access point outgoing lines is the same as the number of access points; If it is determined that the number of distribution stations corresponding to all access point outgoing lines is the same as the number of access points, then the mapping relationship between the access point outgoing lines and the distribution stations is output as the only first-category comparison scheme; If it is determined that the number of distribution stations corresponding to the outgoing lines of the access point is different from the number of access points, then for each access point, a distribution station closest to the access point is selected from the distribution stations corresponding to the outgoing lines of the access point as the first target distribution station; If the first target distribution stations corresponding to the outgoing lines of all access points are the same, the mapping relationship between the outgoing lines of the access points and the first target distribution stations is output as the only first-class comparison and selection scheme; If the first target distribution stations corresponding to the outgoing lines of all access points are different, determining whether there is an intersection distribution station among the distribution stations corresponding to the outgoing lines of different access points; If there is no intersection distribution station among the distribution stations corresponding to the outgoing lines of different access points, the mapping relationship between the outgoing lines of the access points and the first target distribution station is output as the only first-class comparison and selection scheme; If there are intersecting distribution stations among the distribution stations corresponding to the outgoing lines of different access points, two first-category comparison and selection schemes are output; among which, one first-category comparison and selection scheme is a mapping relationship between the outgoing lines of the access points and the first target distribution station, and the other first-category comparison and selection scheme is a mapping relationship between the outgoing lines of the access points and the second target distribution station; the second target distribution station is determined according to the number of intersecting distribution stations.

3. The method for recommending a distribution network grid structure scheme according to claim 1, characterized in that: The method of determining the power supply property of the access point according to the maximum available power supply capacity of the access point, the characteristic information of each load unit under the access point, and the power distribution station and distance corresponding to the outgoing line of the access point includes: When the number of access points is 1, determining the power source property of the access point according to the maximum available power supply capacity of the access point and the characteristic information of each load unit under the access point; When the number of access points is greater than 1, determining for each access point whether the access point can be powered independently; The power supply properties of each access point are determined based on the number of access points that can be independently powered, the maximum available power supply capacity of the access point, the characteristic information of each load unit under the access point, and the distribution station and distance corresponding to the access point outgoing line.

4. The method for recommending a distribution network grid structure scheme according to claim 1, characterized in that: The characteristic information of the load unit includes: the load level of the load unit and the load capacity utilization rate of the load unit year by year; the second type of comparison and selection scheme is determined according to the mapping relationship between the distribution station and the load unit and the characteristic information of the load unit, including: Obtain the intersection load units between different distribution stations; For each intersection load unit, if the load level of the intersection load unit is the same as the load level of other load units under only one first target distribution station, the mapping relationship between the intersection load unit and the first target distribution station is used as the first mapping relationship; wherein the first target distribution station is the distribution station having a mapping relationship with the intersection load unit; If the load level of the intersection load unit is different from or the same as the load level of other load units under each first target distribution station, the second target distribution station is determined according to the yearly load utilization rate of the intersection load unit, the yearly load utilization rate of other load units under the first target distribution station, and the critical deviation value of the utilization rate; Using the mapping relationship between the intersection load unit and the second target distribution station as the first mapping relationship; For each third target distribution station, the load units having a mapping relationship with the third target distribution station are combined into a distribution load unit set of the third target distribution station; wherein the third target distribution station is a distribution station in the first mapping relationship set, including the first target distribution station and the second target distribution station; For each fourth target distribution station, a load unit having a mapping relationship with the fourth target distribution station is obtained as a target load unit; wherein the fourth target distribution station is a distribution station in the first mapping relationship set except the third target distribution station; All target load units of all fourth target distribution stations form a distribution load unit set of other target distribution stations; If the distribution load unit set of the third target distribution station belongs to a subset of the distribution load unit set of the other target distribution stations, it is determined that the third target distribution station can be cancelled; The third target distribution station with the largest design load that can be cancelled is used as the fifth target distribution station; Two second-category comparison schemes are generated based on the first mapping relationship set and the fifth target distribution station; wherein one second-category comparison scheme is a mapping relationship between a distribution station and a load unit in the first mapping relationship set including the fifth target distribution station; and the other second-category comparison scheme is a mapping relationship between a distribution station and a load unit in the first mapping relationship set not including the fifth target distribution station.

5. The method for recommending a distribution network grid structure scheme according to claim 4, characterized in that: The determining of the second target distribution station according to the yearly load production capacity utilization rate of the intersection load unit, the yearly load production capacity utilization rate of other load units under the first target distribution station, and the critical deviation value of the production capacity utilization rate includes: Calculate the year-by-year load utilization rate of each first target distribution station; wherein the year-by-year load utilization rate of the first target distribution station is the weighted average of the year-by-year load utilization rates of all load units in the first target distribution station; For each first target distribution station, the deviation value of the first target distribution station is calculated based on the yearly load utilization rate of the first target distribution station, the yearly load utilization rate of the intersection load unit, the yearly load utilization rate of other load units under the first target distribution station, and the critical deviation value of the utilization rate; If the product of the deviation values ​​of all the first target distribution stations is less than 0, the first target distribution station with the minimum deviation value among all the first target distribution stations is taken as the second target distribution station.

6. The method for recommending a distribution network structure scheme according to claim 1, characterized in that: The determining the optimal path information between the access point and the distribution station according to the first type of comparison and selection scheme, the second type of comparison and selection scheme and the adjacent relationship and distance of the distribution station includes: Generate a known adjacency table based on the first type of comparison and selection scheme, the second type of comparison and selection scheme, and the adjacency relationship and distance of the power distribution station; The optimal path and distance between each access point and each power distribution station are determined by using a preset path algorithm and the known adjacency table.

7. The method for recommending a distribution network structure scheme according to claim 1, characterized in that: The determining of the mapping relationship between the target access point and the power distribution station according to the power source property of the access point, the designed power load, the maximum available power supply capacity, and the optimal path information between the access point and the power distribution station includes: If only one access point has a primary power supply, a mapping relationship is established between the access point with the primary power supply nature and all distribution stations; If there are at least two access points whose power source is primary supply, determine whether the power distribution stations corresponding to the outgoing lines of the target access point are the same power distribution station; wherein the target access point is an access point whose power source is primary supply; If it is determined that the distribution stations corresponding to the outgoing lines of the target access point are the same distribution station, the optimal path information between the access point and the distribution station is screened according to a first preset screening scheme to obtain a first screening result; If it is determined that the distribution stations corresponding to the outgoing lines of the target access point are not the same distribution station, the optimal path information between the access point and the distribution station is screened according to the second preset screening scheme to obtain a preliminary selection result; The preliminary selection results are screened according to the designed electrical load of the access point, the maximum available power supply capacity of the access point, and the distance from the access point to the power distribution station to obtain a second screening result; The first screening result and the second screening result are used as a mapping relationship between a target access point and a power distribution station.

8. The method for recommending a distribution network structure scheme according to claim 1, characterized in that: The generating of a third type of comparison scheme according to the mapping relationship between the target access point and the power distribution station, the grid structure form, and the adjacent relationship and distance between the power distribution stations includes: If the grid structure is radial, a unique third-class comparison scheme is generated according to the mapping relationship between the target access point and the distribution station, the adjacent relationship and the distance between the distribution stations, and the first preset generation scheme; If the grid structure is in series, a unique third analog selection scheme is generated according to the mapping relationship between the target access point and the distribution station, the adjacent relationship and the distance between the distribution stations, and the second preset generation scheme; If the grid structure is automatically recommended, a third analog selection scheme is generated according to the first preset generation scheme based on the radial grid structure, according to the mapping relationship between the target access point and the distribution station, and the adjacent relationship and distance of the distribution station; and another third analog selection scheme is generated according to the second preset generation scheme based on the serial grid structure, according to the mapping relationship between the target access point and the distribution station, and the adjacent relationship and distance of the distribution station.

9. The method for recommending a distribution network structure scheme according to claim 1, characterized in that: The step of determining the incremental investment payback period of each recommended grid structure solution in the recommended grid structure solution set includes: For each recommended grid structure scheme in the recommended grid structure scheme set, selecting substation equipment and cables for the recommended grid structure scheme to obtain a configuration result of the recommended grid structure scheme; Calculating the construction investment of the recommended grid structure scheme and the basic variable cost of the recommended grid structure scheme according to the configuration results of the recommended grid structure scheme; For each of the recommended grid structure schemes, the incremental investment payback period of the recommended grid structure scheme is determined based on the construction investment of the recommended grid structure scheme and the basic variable cost of the recommended grid structure scheme.

10. A device for recommending a distribution network grid structure scheme, characterized in that: include: A receiving unit, configured to receive resource condition recognition data input by a user; wherein the resource condition recognition data includes: a distribution station and distance corresponding to an access point outgoing line, a mapping relationship between a distribution station and a load unit, a grid structure form, and a distribution station adjacent relationship and distance; A first type comparison scheme generating unit, configured to determine a first type comparison scheme according to a distribution station and a distance corresponding to an outgoing line of the access point; A power source property determination unit, used to determine the power source property of the access point according to the maximum available power supply capacity of the access point, characteristic information of each load unit under the access point, and the power distribution station and distance corresponding to the outgoing line of the access point; A second type comparison scheme generating unit, used for determining a second type comparison scheme according to the mapping relationship between the distribution station and the load unit and the characteristic information of the load unit; A first mapping relationship determination unit, configured to determine optimal path information between an access point and a distribution station according to the first type of comparison and selection scheme, the second type of comparison and selection scheme, and the adjacent relationship and distance of the distribution station; wherein the optimal path information between the access point and the distribution station includes the optimal path and distance between each access point and each distribution station; A second mapping relationship determination unit is used to determine the mapping relationship between the target access point and the power distribution station according to the power source property of the access point, the designed power load, the maximum available power supply capacity, and the optimal path information between the access point and the power distribution station; wherein the target access point is an access point with a power source property of primary supply; A third type comparison scheme generating unit, configured to generate a third type comparison scheme according to a mapping relationship between the target access point and the distribution station, the grid structure form, and the adjacent relationship and distance between the distribution stations; A combination unit, used for arranging and combining the first type of comparison and selection schemes, the second type of comparison and selection schemes and the third type of comparison and selection schemes to obtain a set of recommended grid structure schemes; An incremental investment payback period determination unit, configured to determine the incremental investment payback period of each recommended grid structure scheme in the recommended grid structure scheme set; The optimal grid structure scheme determining unit is used to determine the optimal grid structure scheme according to the incremental investment payback periods of all the recommended grid structure schemes; wherein, if there are multiple recommended grid structure schemes whose incremental investment payback periods are greater than 0 and are less than or equal to the critical incremental investment payback period, the recommended grid structure scheme with the largest incremental investment payback period is used as the optimal grid structure scheme; if there is no recommended grid structure scheme whose incremental investment payback period is greater than 0 or greater than the critical incremental investment payback period, the recommended grid structure scheme corresponding to the benchmark investment is used as the optimal grid structure scheme; the benchmark investment is the lowest construction investment among all recommended grid structure schemes.

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