Voltage regulation device collaborative dispatching method and system based on feeder level voltage regulation

Abstract

The application provides a voltage regulation device coordination method and system based on feeder level voltage regulation, and relates to the technical field of distribution substation voltage regulation.Taking the feeder of the substation as a whole, the current voltage of the low-voltage side of all substations under the same feeder is analyzed, the substations with the current voltage of the low-voltage side less than the voltage qualified value are grouped and regulated based on the topology relationship of the substations, the voltage regulation priority of the substation group and the priority of voltage regulation of each substation in each substation group are determined, and then voltage regulation is sequentially performed, so as to realize the unification of the substation voltage at the feeder level. The method and system can realize the overall management of the substation voltage from the feeder level, improve the substation voltage regulation capacity, and realize the unification of the substation voltage at the feeder level.

Description

A method and system for coordinated dispatching of voltage regulation equipment based on feeder-level voltage regulation Technical Field

[0001] This invention relates to the technical field of voltage regulation in distribution substations, and more specifically, to a method and system for coordinated regulation of voltage regulation equipment based on feeder-level voltage regulation. Background Technology

[0002] In a power distribution network, 10kV feeders are connected to 400V distribution areas via distribution transformers. Multiple distribution areas are typically connected to the same feeder, and these areas share the power supply capacity of the same feeder.

[0003] With the increasing number of distributed photovoltaic grid-connected systems, the large-scale grid connection of distributed photovoltaic systems has changed the original power flow distribution characteristics of the distribution network. The voltage fluctuations in the distribution substations have gradually changed from the traditional predictable slow and continuous changes to unpredictable rapid and sudden changes. Substations on the same feeder may face problems such as voltage exceeding limits and three-phase imbalance, which can easily lead to the phenomenon that the voltage regulation of the substations cannot effectively match the regulation requirements.

[0004] Meanwhile, due to the current weak configuration of control equipment at the distribution substation level, simply adding control equipment (such as reactive power compensation devices and energy storage) independently to each substation, while providing localized relief from voltage issues, leads to several problems. First, independently deploying reactive power compensation and energy storage equipment in each substation results in redundant investment in hardware resources. This is especially problematic in low-voltage distribution networks where the number of substations is vast, causing a sharp increase in overall costs. Furthermore, individual equipment requires separate operation and maintenance, increasing the difficulty of inspection and troubleshooting. Second, after distributed photovoltaic (PV) grid integration, the combined output of multiple substations on the same feeder may cause feeder-level voltage exceedances (e.g., peak PV output during the day causing feeder voltage rise). Local regulation at the substation level cannot coordinate feeder-level reactive power compensation or energy storage output, making it difficult to solve the overall problem. Moreover, the load and renewable energy output of different substations differ in time and space, making isolated control unable to achieve power mutual assistance. Summary of the Invention

[0005] To address the problem that current voltage regulation methods at the distribution substation level cannot effectively handle voltage fluctuations, this invention proposes a collaborative scheduling method and system for voltage regulation equipment based on feeder-level voltage regulation. Using the feeder as the regulation unit, the voltage of the substations below the feeder is uniformly regulated, improving the voltage regulation capability of the substations and achieving uniform voltage at the feeder level.

[0006] To achieve the above-mentioned technical effects, the technical solution of the present invention is as follows:

[0007] In a first aspect, this application proposes a method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation, comprising the following steps:

[0008] S1: On the same feeder line, number the transformer substations in order of increasing distance from the feeder head, and obtain the current voltage of the low-voltage side of each substation.

[0009] S2: Determine whether there is at least one transformer area where the current voltage on the low-voltage side is less than the qualified voltage value. If yes, proceed to S3; otherwise, end.

[0010] S3: Based on the feeder area topology, group the areas where the voltage on the low-voltage side is currently less than the qualified voltage value into substations;

[0011] S4: Determine the voltage regulation priority of the transformer area group, sort the transformer area groups according to the priority order, calculate the voltage regulation priority of each transformer area in each transformer area group, and sort the transformer areas in each transformer area group according to the priority.

[0012] S5: Let the total number of transformer substation clusters be v, the order of the transformer substations in the j-th transformer substation cluster be i, and the total number of transformer substations in the j-th transformer substation cluster be v. Let j=1, i=1;

[0013] S6: Determine if j is greater than v. If yes, issue an alarm and end the process. Otherwise, execute S7.

[0014] S7: Determine if i is greater than H j If yes, increment the value of j by 1 and return to S6; otherwise, execute S8 according to the priority of voltage regulation of each transformer area in each transformer area group.

[0015] S8: Determine whether all voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group has been put into operation. If so, increment the value of i by 1 and return to S7; otherwise, put a group of voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group into operation, obtain the current voltage of the low-voltage side of each transformer area, and execute S9.

[0016] S9: Determine whether there is at least one transformer area where the current voltage on the low-voltage side is less than the qualified voltage value. If yes, return to execute S8; otherwise, end.

[0017] Preferably, in S1, each transformer area is sequentially numbered as transformer area 1, transformer area 2, etc. Taiwan District , where n represents the total number of transformer substations under the same feeder; the current voltage on the low-voltage side of each transformer substation is obtained as follows: Areas where the voltage on the low-voltage side is currently less than the acceptable voltage value are designated as over-limit areas. These areas are grouped as follows: v represents the total number of clusters in the Taiwan area;

[0018] The process described in S3, which groups distribution areas whose current voltage on the low-voltage side is less than the qualified voltage value, based on the distribution area topology, is as follows:

[0019] S31: Let p and q both represent the station area numbers, and let p=1, q=1;

[0020] S32: Determine if p is equal to q. If yes, execute S34; otherwise, execute S33.

[0021] S33: Determine the connection between transformer areas based on the feeder transformer area topology. Taking transformer area p as the reference, if there is no other transformer area between transformer area q and transformer area p, then mark transformer area q as a neighboring transformer area of ​​transformer area p and execute S34; if there is another transformer area between transformer area q and transformer area p, execute S34.

[0022] S34: Increment the value of q by 1. If q is greater than n, execute S35; otherwise, return to S32.

[0023] S35: Increment the value of p by 1. If p is greater than n, execute S36; otherwise, set q=1 and return to S32.

[0024] S36: Obtain the distance from each over-limit transformer area to the feeder head end, and label each over-limit transformer area in ascending order of length as over-limit transformer area 1, over-limit transformer area 2, ..., over-limit transformer area m, where m represents the total number of over-limit transformer areas;

[0025] S37: Grouping of transformer substations that exceed the limit.

[0026] Preferably, the process of grouping over-limit transformer areas as described in S37 is as follows:

[0027] S371: Let the order of the kth over-limit transformer area be 1, and the order of the hth transformer area group be 0;

[0028] S372: If the limit is exceeded, the area will be restricted. If it already belongs to any of the transformer area clusters, then execute S378; otherwise, execute S373.

[0029] S373: Increase the value of h by 1, and assign the out-of-limit transformer area k to the h-th transformer area cluster. ;

[0030] S374: Set the order l of the l-th out-of-limit station to 1;

[0031] S375: If the limit is exceeded, the area will be restricted. It already belongs to any of the district clusters, or If so, execute S377; otherwise, execute S376.

[0032] S376: If the limit is exceeded, the area will be restricted. Belongs to the Taiqu Group If any adjacent station within a station area is outside the station area limit, then the station area will be exceeded. Belongs to the Taiwan District Group If yes, execute S377; otherwise, execute S377.

[0033] S377: Increment the value of l by 1, if... If the condition is met, then execute S378; otherwise, return to execute S375.

[0034] S378: Increment the value of k by 1, if... If yes, terminate; otherwise, return to execute S372.

[0035] Preferably, the process of determining the voltage regulation priority of the transformer substation clusters and sorting the transformer substation clusters according to priority order in step S4 is as follows:

[0036] S401: Let the order of the j-th transformer area group be 1;

[0037] S402: Obtain Taiwan District Group Booking Number of stations within and the cluster of that area The current voltage values ​​of all transformer substations are expressed as follows: ;

[0038] S403: Calculation of transformer substation clusters The sum of the voltage differences of the current voltage values ​​of all transformer substations;

[0039] S404: Increment the value of j by 1, if If the condition is met, proceed to step S405; otherwise, return to step S402.

[0040] S405: Reorder the corresponding transformer substations in descending order of the sum of the current voltage differences of all transformer substations within each substation cluster, as follows: .

[0041] Preferably, the computing area cluster described in S403 The expression for the voltage difference is:

[0042]

[0043] in, This indicates the acceptable voltage value.

[0044] Preferably, the priority of voltage regulation for each transformer substation in each transformer substation cluster is calculated, and the process of sorting the transformer substations according to priority in each transformer substation cluster is as follows:

[0045] S411: Let the order of the j-th station cluster be 1;

[0046] S412: Obtain Taiwan District Group Booking Central Taiwan area and the sum of voltage differences And assign numbers to all transformer substations within the substation cluster, as follows: At the same time, it won the Taiwan District group The current voltage values ​​of all transformer substations are expressed as follows: ;

[0047] S413: Let the order of the i-th station be 1;

[0048] S414: Calculate the voltage exceedance level of the i-th transformer area;

[0049] S415: Increment the value of i by 1, if... If yes, then execute S416; otherwise, return to execute S414.

[0050] S416: Voltage over-limit level Sort by voltage limit severity from highest to lowest. Corresponding to the Taiqu clusters in sequence The central Taiwan area has priority and receives priority for Taiwan area clusters. Priority order of the central platform area;

[0051] S417: Order If the value increases by 1, If the condition is met, the process ends; otherwise, return to execute S412.

[0052] Preferably, the expression for calculating the voltage exceedance level of the i-th transformer area described in S414 is:

[0053] ;

[0054] in, This indicates the degree of voltage exceedance in the i-th transformer area. This indicates the acceptable voltage value.

[0055] Secondly, this application proposes an electronic device, including: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor is configured to read the program in the memory to implement the steps of the voltage regulation device coordinated allocation method based on feeder-level voltage regulation.

[0056] Thirdly, this application proposes a readable storage medium for storing a program that, when executed by a processor, implements the steps of the aforementioned voltage regulation device coordinated allocation method based on feeder-level voltage regulation.

[0057] Fourthly, this application proposes a voltage regulation equipment collaborative dispatching system based on feeder-level voltage regulation, the system comprising:

[0058] The data acquisition and processing module, on the same feeder line, sequentially numbers each transformer area according to the order of its distance from the feeder head from smallest to largest; and acquires the current voltage on the low-voltage side of each transformer area.

[0059] The analysis and judgment module determines whether at least one transformer area has a low-voltage side voltage that is currently less than the qualified voltage value.

[0060] The transformer substation grouping module groups substations whose low-voltage side voltage is currently less than the qualified voltage value based on the feeder substation topology.

[0061] The transformer area voltage regulation analysis module is used to determine the voltage regulation priority of transformer area groups, sort the transformer area groups according to priority, calculate the voltage regulation priority of each transformer area in each transformer area group, and sort the transformer areas in each transformer area group according to priority.

[0062] The voltage regulation equipment commissioning analysis module is used to analyze whether all voltage regulation equipment in a transformer substation cluster has been put into operation. Based on the analysis results, the voltage regulation equipment in the transformer substation cluster is put into operation.

[0063] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0064] This invention proposes a collaborative dispatching method and system for voltage regulation equipment based on feeder-level voltage regulation. Taking the feeder to which a transformer substation belongs as a whole, it analyzes the current low-voltage side voltage of all substations under the same feeder. Based on the feeder-substation topology, substations with current low-voltage side voltages below the acceptable value are grouped and their regulation capabilities are determined. The voltage regulation priority of substation groups and the voltage regulation priority of each substation within each group are determined, and then voltage regulation is performed sequentially, thereby achieving feeder-level substation voltage uniformity. Using the method and system proposed in this invention, unified management of substation voltage at the feeder level can be achieved, improving substation voltage regulation capabilities and realizing feeder-level substation voltage uniformity. Attached Figure Description

[0065] Figure 1 is a schematic flowchart of the voltage regulation device collaborative allocation method based on feeder-level voltage regulation proposed in Embodiment 1 of the present invention;

[0066] Figure 2 shows a schematic diagram of the structure of the electronic device proposed in Embodiment 3 of the present invention;

[0067] Figure 3 shows a schematic diagram of the structure of the voltage regulation equipment collaborative allocation system based on feeder-level voltage regulation proposed in Embodiment 4 of the present invention. Detailed Implementation

[0068] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this application.

[0069] To better illustrate this embodiment, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions;

[0070] It is understandable to those skilled in the art that some well-known details may be omitted from the accompanying drawings.

[0071] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0072] The positional relationships depicted in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this application.

[0073] Example 1

[0074] This embodiment proposes a collaborative scheduling method for voltage regulation equipment based on feeder-level voltage regulation. Referring to Figure 1, the collaborative scheduling method for voltage regulation equipment based on feeder-level voltage regulation shown in Figure 1 can be executed by electronic equipment.

[0075] As shown in Figure 1, the method includes the following steps:

[0076] S1: On the same feeder line, number the transformer substations in order of increasing distance from the feeder head, and obtain the current voltage of the low-voltage side of each substation.

[0077] In this embodiment, numbering the transformer substations sequentially according to their distance from the feeder's starting point in ascending order means numbering them sequentially according to their distance from the same feeder's starting point in ascending order, such as Substation 1, Substation 2, etc. Taiwan District , where n represents the total number of substations in the same feeder line area.

[0078] The current voltage on the low-voltage side of each transformer area is obtained as follows: Areas where the current voltage on the low-voltage side is less than the acceptable voltage value are designated as over-limit areas. In this embodiment, the acceptable voltage value is 9.3kV.

[0079] S2: Determine whether there is at least one transformer area where the current voltage on the low-voltage side is less than the qualified voltage value. If yes, proceed to S3; otherwise, end.

[0080] S3: Based on the feeder area topology, group the areas where the voltage on the low-voltage side is currently less than the qualified voltage value.

[0081] In this embodiment, the topology of the feeder substation area can describe the main line, branch lines and their connection sequence of the feeder, and determine the substation's access status. The substation group is represented as follows: v represents the total number of clusters in the Taiwan area.

[0082] S4: Determine the voltage regulation priority of the transformer area group, sort the transformer area groups according to the priority order, calculate the voltage regulation priority of each transformer area in each transformer area group, and sort the transformer areas in each transformer area group according to the priority.

[0083] S5: Let the total number of transformer substation clusters be v, the order of the transformer substations in the j-th transformer substation cluster be i, and the total number of transformer substations in the j-th transformer substation cluster be v. Let j=1, i=1;

[0084] S6: Determine if j is greater than v. If yes, issue an alarm and end the process. Otherwise, execute S7.

[0085] S7: Determine if i is greater than H j If yes, increment the value of j by 1 and return to S6; otherwise, execute S8 according to the priority of voltage regulation of each transformer area in each transformer area group.

[0086] S8: Determine whether all voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group has been put into operation. If so, increment the value of i by 1 and return to S7; otherwise, put a group of voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group into operation, obtain the current voltage of the low-voltage side of each transformer area, and execute S9.

[0087] S9: Determine whether there is at least one transformer area where the current voltage on the low-voltage side is less than the qualified voltage value. If yes, return to execute S8; otherwise, end.

[0088] This embodiment takes the feeder line to which a transformer substation belongs as a whole, analyzes the current low-voltage side voltage of all transformer substations under the same feeder line, and, based on the feeder-substation topology, groups substations with current low-voltage side voltages below the qualified value and determines their control capabilities. It identifies the voltage control priority of each substation group and the voltage control priority of each substation within each group, and then performs voltage control sequentially, thereby achieving feeder-level substation voltage uniformity. Using the method and system proposed in this invention, unified management of substation voltage at the feeder level can be achieved, improving substation voltage control capabilities and realizing feeder-level substation voltage uniformity.

[0089] Example 2

[0090] The process described in S3, which involves grouping transformer substations whose current voltage on the low-voltage side is less than the acceptable voltage value, based on the transformer substation topology, is as follows:

[0091] S31: Let p and q both represent the station area numbers, and let p=1, q=1;

[0092] S32: Determine if p is equal to q. If yes, execute S34; otherwise, execute S33.

[0093] S33: Determine the connection between transformer areas based on the feeder transformer area topology. Taking transformer area p as the reference, if there is no other transformer area between transformer area q and transformer area p, then mark transformer area q as a neighboring transformer area of ​​transformer area p and execute S34; if there is another transformer area between transformer area q and transformer area p, execute S34.

[0094] S34: Increment the value of q by 1. If q is greater than n, execute S35; otherwise, return to S32.

[0095] S35: Increment the value of p by 1. If p is greater than n, execute S36; otherwise, set q=1 and return to S32.

[0096] S36: Obtain the distance from each over-limit transformer area to the feeder head end, and label each over-limit transformer area in ascending order of length as over-limit transformer area 1, over-limit transformer area 2, ..., over-limit transformer area m, where m represents the total number of over-limit transformer areas;

[0097] S37: Grouping of transformer substations that exceed the limit.

[0098] The process of grouping over-limit transformer areas as described in S37 is as follows:

[0099] S371: Let the order of the kth over-limit transformer area be 1, and the order of the hth transformer area group be 0;

[0100] S372: If the limit is exceeded, the area will be restricted. If it already belongs to any of the transformer area clusters, then execute S378; otherwise, execute S373.

[0101] S373: Increase the value of h by 1, and assign the out-of-limit transformer area k to the h-th transformer area cluster. ;

[0102] S374: Set the order l of the l-th out-of-limit station to 1;

[0103] S375: If the limit is exceeded, the area will be restricted. It already belongs to any of the district clusters, or If so, execute S377; otherwise, execute S376.

[0104] S376: If the limit is exceeded, the area will be restricted. Belongs to the Taiqu Group If any adjacent station within a station area is outside the station area limit, then the station area will be exceeded. Belongs to the Taiwan District Group If yes, execute S377; otherwise, execute S377.

[0105] S377: Increment the value of l by 1, if... If the condition is met, then execute S378; otherwise, return to execute S375.

[0106] S378: Increment the value of k by 1, if... If yes, terminate; otherwise, return to execute S372.

[0107] In this embodiment, the process of determining the voltage regulation priority of the transformer substation clusters and sorting the transformer substation clusters according to priority order in step S4 is as follows:

[0108] S401: Let the order of the j-th transformer area group be 1;

[0109] S402: Obtain Taiwan District Group Booking Number of stations within and the cluster of that area The current voltage values ​​of all transformer substations are expressed as follows: ;

[0110] S403: Calculation of transformer substation clusters The sum of the voltage differences of the current voltage values ​​of all transformer substations;

[0111] Computing station cluster The expression for the voltage difference is:

[0112]

[0113] in, This indicates the acceptable voltage value.

[0114] S404: Increment the value of j by 1, if If the condition is met, proceed to step S405; otherwise, return to step S402.

[0115] S405: Reorder the corresponding transformer substations in descending order of the sum of the current voltage differences of all transformer substations within each substation cluster, as follows: .

[0116] In this embodiment, the priority of voltage regulation for each transformer substation in each transformer substation cluster is calculated. The process of sorting the transformer substations according to priority within each transformer substation cluster is as follows:

[0117] S411: Let the order of the j-th station cluster be 1;

[0118] S412: Obtain Taiwan District Group Booking Central Taiwan area and the sum of voltage differences And assign numbers to all transformer substations within the substation cluster, as follows: At the same time, it won the Taiwan District group The current voltage values ​​of all transformer substations are expressed as follows: ;

[0119] S413: Let the order of the i-th station be 1;

[0120] S414: Calculate the voltage exceedance level of the i-th transformer area;

[0121] The expression for calculating the voltage exceedance level of the i-th transformer area is:

[0122] ;

[0123] in, This indicates the degree of voltage exceedance in the i-th transformer area. This indicates the acceptable voltage value.

[0124] S415: Increment the value of i by 1, if... If yes, then execute S416; otherwise, return to execute S414.

[0125] S416: Voltage over-limit level Sort by voltage limit severity from highest to lowest. Corresponding to the Taiqu clusters in sequence The central Taiwan area has priority and receives priority for Taiwan area clusters. Priority order of the central platform area;

[0126] S417: Order If the value increases by 1, If the condition is met, the process ends; otherwise, return to execute S412.

[0127] Example 3

[0128] As shown in Figure 2, this embodiment provides an electronic device. The electronic device may include a processor 201, a memory 202, and a program 2021 stored in the memory 202 and executable on the processor 201. When the program 2021 is executed by the processor 201, it can implement any step in the method embodiment corresponding to Figure 1 and achieve the same beneficial effects, which will not be elaborated here.

[0129] It is understood that all or part of the steps of the methods described in the above embodiments can be implemented by hardware related to program instructions. In this embodiment, the program can be stored in a computer-readable medium. This embodiment also provides a computer-readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. The computer program stored on the readable storage medium can implement any step in the method embodiment corresponding to FIG1 when executed by a processor, and can achieve the same technical effect.

[0130] Example 4

[0131] As shown in Figure 3, this embodiment provides a voltage regulation equipment collaborative dispatching system based on feeder-level voltage regulation. Referring to Figure 3, the system includes:

[0132] The data acquisition and processing module, on the same feeder line, sequentially numbers each transformer area according to the order of its distance from the feeder head from smallest to largest; and acquires the current voltage on the low-voltage side of each transformer area.

[0133] The analysis and judgment module determines whether at least one transformer area has a low-voltage side voltage that is currently less than the qualified voltage value.

[0134] The transformer substation grouping module groups substations whose low-voltage side voltage is currently less than the qualified voltage value based on the feeder substation topology.

[0135] The transformer area voltage regulation analysis module is used to determine the voltage regulation priority of transformer area groups, sort the transformer area groups according to priority, calculate the voltage regulation priority of each transformer area in each transformer area group, and sort the transformer areas in each transformer area group according to priority.

[0136] The voltage regulation equipment commissioning analysis module is used to analyze whether all voltage regulation equipment in a transformer substation cluster has been put into operation. Based on the analysis results, the voltage regulation equipment in the transformer substation cluster is put into operation.

[0137] Specifically, the analysis results include the detailed process shown in Figure 1, such as "S5: Let the total number of transformer substation clusters be v, the order of the transformer substations in the j-th transformer substation cluster be i, and the total number of transformer substations in the j-th transformer substation cluster be v' ...""""''''''''''''''''''''''' Let j=1, i=1;

[0138] S6: Determine if j is greater than v. If yes, issue an alarm and end the process. Otherwise, execute S7.

[0139] S7: Determine if i is greater than Hj If yes, increment the value of j by 1 and return to S6; otherwise, execute S8 according to the priority of voltage regulation of each transformer area in each transformer area group.

[0140] S8: Determine whether all voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group has been put into operation. If so, increment the value of i by 1 and return to S7; otherwise, put a group of voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group into operation and execute S9.

[0141] S9: Obtain the current voltage on the low-voltage side of each transformer area, and determine whether at least one transformer area has a current low-voltage side voltage lower than the acceptable value. If so, return to execute S8; otherwise, end.

[0142] The system proposed in this embodiment can implement the various processes of the method embodiment in Figure 1 of this application and achieve the same beneficial effects.

[0143] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation, characterized in that, Includes the following steps: S1: On the same feeder line, number the transformer substations sequentially according to their distance from the feeder head in ascending order, and obtain the current voltage of the low-voltage side of each substation; S2: Determine whether there is at least one substation whose current voltage on the low-voltage side is less than the qualified voltage value. If so, proceed to S3. Otherwise, end; S3: Based on the feeder area topology, group the areas where the current voltage on the low-voltage side is less than the qualified voltage value into groups; S4: Determine the voltage regulation priority of each transformer substation group, sort the substation groups according to priority, calculate the voltage regulation priority of each substation in each substation group, and sort the substations in each substation group according to priority; S5: Let the total number of transformer substation groups be v, the order of the substations in the j-th substation group be i, and the total number of substations in the j-th substation group be v. Let j=1, i=1; S6: Determine if j is greater than v. If yes, issue an alarm and end the process. Otherwise, execute S7. S7: Determine if i is greater than H j If so, increment the value of j by 1 and return S6; Otherwise, according to the priority of voltage regulation of each transformer area in each transformer area group, execute S8; S8: Determine whether the voltage regulation equipment of the i-th transformer area in the j-th transformer area group has been fully put into operation. If so, increment the value of i by 1 and return to S7. Otherwise, put a set of voltage regulation equipment in the i-th transformer area of ​​the j-th transformer area group into operation, obtain the current voltage of the low-voltage side of each transformer area, and execute S9; S9: Determine whether there is at least one transformer area where the current voltage on the low-voltage side is less than the qualified voltage value. If yes, return to execute S8; otherwise, end.

2. The method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation according to claim 1, characterized in that, In S1, each transformer area is sequentially numbered as Transformer Area 1, Transformer Area 2, ... Taiwan District , where n represents the total number of transformer substations under the same feeder; the current voltage on the low-voltage side of each transformer substation is obtained as follows: Areas where the voltage on the low-voltage side is currently less than the acceptable voltage value are designated as over-limit areas. These areas are grouped as follows: v represents the total number of transformer area groups; S3 describes the process of grouping transformer areas whose current voltage on the low-voltage side is less than the qualified voltage value based on the transformer area topology as follows: S31: Let p and q both represent the transformer area numbers, let p=1, q=1; S32: Determine whether p is equal to q, if so, execute S34. Otherwise, proceed to S33; S33: Determine the connection between transformer areas based on the feeder area topology. Taking transformer area p as the reference, if there is no other transformer area between transformer area q and transformer area p, mark transformer area q as an adjacent transformer area of ​​transformer area p and proceed to S34; if there is another transformer area between transformer area q and transformer area p, proceed to S34; S34: Increment the value of q by 1. If q is greater than n, proceed to S35; otherwise, return to S32; S35: Increment the value of p by 1. If p is greater than n, proceed to S36; otherwise, set q=1 and return to S32; S36: Obtain the length of each over-limit transformer area from the feeder head end. In order of length from smallest to largest, mark each over-limit transformer area as over-limit transformer area 1, over-limit transformer area 2, ..., over-limit transformer area m, where m represents the total number of over-limit transformer areas; S37: Group the over-limit transformer areas.

3. The method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation according to claim 2, characterized in that, The process of grouping over-limit transformer areas described in S37 is as follows: S371: Let the order k of the k-th over-limit transformer area be 1, and the order h of the h-th transformer area grouping be 0; S372: If the over-limit transformer area If the device already belongs to any transformer cluster, execute S378; otherwise, execute S373. S373: Increment the value of h by 1, and assign the out-of-limit transformer k to the h-th transformer cluster. S374: Set the order of the l-th out-of-limit transformer zone to 1; S375: If the out-of-limit transformer zone... It already belongs to any of the district clusters, or If so, then execute S377; Otherwise, execute S376; S376: If the limit area is exceeded. Belongs to the Taiqu Group If any adjacent station within a station area is outside the station area limit, then the station area will be exceeded. Belongs to the Taiwan District Group Execute S377; Otherwise, execute S377; S377: Increment the value of l by 1, if If so, execute S378; otherwise, return to execute S375; S378: Increment the value of k by 1, if If yes, terminate; otherwise, return to execute S372.

4. The method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation according to claim 3, characterized in that, The process of determining the voltage regulation priority of transformer substation groups as described in S4, and sorting the transformer substation groups according to priority order, is as follows: S401: Set the order j of the j-th transformer substation group to 1; S402: Obtain the transformer substation group Number of stations within and the cluster of that area The current voltage values ​​of all transformer substations are expressed as follows: S403: Computing station cluster The sum of the voltage differences of the current voltage values ​​of all transformer substations; S404: Increment the value of j by 1, if End, execute S405; otherwise, return to S402; S405: Reorder the corresponding transformer substations in descending order of the sum of the current voltage differences of all transformer substations in different substation clusters, as follows: 。 5. The method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation according to claim 4, characterized in that, S403 describes the computing area cluster The expression for the voltage difference is: in, This indicates the acceptable voltage value.

6. The method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation according to claim 4, characterized in that, The priority of voltage regulation for each transformer substation in each transformer substation cluster is calculated. The process of sorting the transformer substations by priority within each cluster is as follows: S411: Set the order j of the j-th transformer substation cluster to 1; S412: Obtain the transformer substation cluster... Central Taiwan area and the sum of voltage differences And assign numbers to all transformer substations within the substation cluster, as follows: At the same time, it won the Taiwan District group The current voltage values ​​of all transformer substations are expressed as follows: ； S413: Let the order of the i-th station be 1; S414: Calculate the voltage exceedance level of the i-th transformer area; S415: Increment the value of i by 1, if... If the voltage exceeds the limit, execute S416; otherwise, return to execute S414. S416: Determine the voltage exceedance level. Sort by voltage limit severity from highest to lowest. Corresponding to the Taiqu clusters in sequence The central Taiwan area has priority and receives priority for Taiwan area clusters. Priority order of the central platform area; S417: Order If the value increases by 1, If the condition is met, the process ends; otherwise, return to execute S412.

7. The method for coordinated allocation of voltage regulation equipment based on feeder-level voltage regulation according to claim 6, characterized in that, The expression for calculating the voltage exceedance level of the i-th transformer area, as described in S414, is as follows: ;in, This indicates the degree of voltage exceedance in the i-th transformer area. This indicates the acceptable voltage value.

8. An electronic device, comprising: A memory, a processor, and a program stored in the memory and executable on the processor; characterized in that the processor is configured to read the program in the memory to implement the steps of the voltage regulation device coordinated allocation method based on feeder-level voltage regulation as described in any one of claims 1 to 7.

9. A readable storage medium for storing a program, characterized in that, When the program is executed by the processor, it implements the steps of the voltage regulation device collaborative allocation method based on feeder-level voltage regulation as described in any one of claims 1 to 7.

10. A voltage regulation equipment collaborative dispatching system based on feeder-level voltage regulation, characterized in that, The system includes: a data acquisition and processing module, which sequentially numbers the transformer substations on the same feeder line according to their distance from the feeder head in ascending order; and acquires the current voltage on the low-voltage side of each substation; an analysis and judgment module, which determines whether at least one substation has a current voltage on the low-voltage side that is less than the acceptable voltage value; a substation grouping module, which, based on the feeder substation topology, groups the substations with current voltage on the low-voltage side that are less than the acceptable voltage value when at least one substation has such a voltage value; a substation voltage regulation analysis module, which determines the voltage regulation priority of substation groups, sorts the substation groups according to priority, calculates the voltage regulation priority of each substation in each substation group, and sorts the substations in each substation group according to priority; and a voltage regulation equipment commissioning analysis module, which analyzes whether all voltage regulation equipment in the substation groups has been commissioned, and puts the voltage regulation equipment in the substation groups into operation based on the analysis results.

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