Feeder-level voltage regulation-based voltage regulation and control equipment collaborative allocation method and system

Abstract

The invention provides a voltage regulation and control equipment collaborative allocation method and system based on feeder-level voltage regulation, and relates to the technical field of voltage regulation and control in a power distribution area, the feeder to which the area belongs is taken as a whole, the voltage of the low-voltage side of all the areas under the same feeder at the current moment is analyzed, and the voltage regulation and control equipment collaborative allocation method and system based on the feeder-area topological relation are established. The method comprises the following steps: carrying out transformer area grouping and capacity regulation on transformer areas of which the voltage at the low-voltage side at the current moment is smaller than a voltage qualified value, determining the voltage regulation priority of the transformer area group and the priority of voltage regulation of each transformer area in each transformer area group, and then carrying out voltage regulation in sequence, thereby realizing transformer area voltage unification of a feeder line level. By using the method and the system provided by the invention, the overall management of the transformer area voltage from the feeder level can be realized, the transformer area voltage regulation and control capability is improved, and the transformer area voltage unification of the feeder level is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage regulation in distribution station areas, and more specifically, to a method and system for coordinated deployment of voltage regulation equipment based on feeder-level voltage regulation. Background Art

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

[0003] With the increase in the number of distributed photovoltaic grid-connected systems, large-scale grid-connected distributed photovoltaic systems have changed the original power distribution characteristics of the distribution network. The voltage fluctuations in the distribution station area have gradually changed from the traditional predictable slow and continuous changes to unpredictable rapid and sudden changes. The substations under the same feeder may face problems such as voltage exceeding the limit and three-phase imbalance, which can easily cause the substation voltage regulation to be unable to effectively match the regulation needs.

[0004] At the same time, due to the current weak configuration of control equipment at the substation level, simply adding control equipment (such as reactive power compensation devices and energy storage) to each substation can partially alleviate voltage issues. However, independently deploying reactive power compensation and energy storage equipment in each substation will result in duplication of hardware resources. This is particularly true in low-voltage distribution networks, where the number of substations is large, leading to a sharp increase in overall costs. Furthermore, independent equipment requires separate operation and maintenance, increasing the difficulty of inspection and troubleshooting. Furthermore, after the integration of distributed photovoltaic systems, the combined output of multiple substations on the same feeder may cause feeder-level voltage to exceed the limit (for example, peak daytime photovoltaic output causes feeder voltage to rise). Local regulation alone cannot coordinate feeder-level reactive power compensation or energy storage output, making it difficult to resolve the overall problem. Furthermore, the load and renewable energy output of different substations vary in time and space, making isolated control impossible to achieve power synergy. Summary of the Invention

[0005] In order to solve the problem that the current voltage regulation method at the distribution station level cannot effectively cope with voltage fluctuations, the present invention proposes a voltage regulation equipment collaborative deployment method and system based on feeder-level voltage regulation. The feeder is used as the regulation unit to uniformly regulate the substation voltage under the feeder, thereby improving the substation voltage regulation capability and realizing the uniformity of the substation voltage at the feeder level.

[0006] In order to achieve the above technical effects, the technical solutions of the present invention are as follows: In a first aspect, the present application proposes a method for coordinated deployment of voltage control devices based on feeder-level voltage regulation, comprising the following steps: S1: Under the same feeder, number the substations in ascending order of their distance from the feeder head end, and obtain the current voltage on the low-voltage side of each substation; S2: Determine whether the current voltage on the low-voltage side of at least one substation is lower than the qualified voltage value. If so, execute S3; otherwise, end. S3: Based on the feeder substation topology, the substations where the current voltage on the low-voltage side is less than the qualified voltage value are grouped into substations; S4: Determine the voltage control priority of the substation group, sort the substation groups in order of priority, calculate the voltage control priority of each substation in each substation group, and sort the substations in each substation group according to priority; S5: The total number of station groups is v , the order of the stations in the jth station group is i, and the total number of stations in the jth station group is ,make j =1, i =1; S6: Judgment j Is it greater than v ,If ,alarm, end, otherwise, execute S7; S7: Judgment i Is it greater than H j If yes, increase the value of j by 1 and return to S6; otherwise, execute S8 according to the priority of voltage regulation of each substation in each substation group; S8: Determine the jth station group i Have all the voltage control equipment in each area been put into operation? If so, i The value of is increased by 1, and the process returns to S7; otherwise, a group of voltage control devices in the i-th substation in the j-th substation group is put into operation, the current voltage on the low-voltage side of each substation is obtained, and S9 is executed; S9: Determine whether there is at least one transformer substation whose low-voltage side voltage is lower than the qualified voltage value at the current moment. If so, return to execute S8; otherwise, end.

[0007] Preferably, in S1, each area is numbered as area 1, area 2, , Taiwan area , n Indicates the total number of substations under the same feeder; the current voltage of the low-voltage side of each substation is obtained in the following order: The substation where the voltage on the low-voltage side is less than the qualified voltage value at the current moment is recorded as an out-of-limit substation, and the substation group is represented as: , v Indicates the total number of groups in the area; The process of grouping the substations where the voltage on the low-voltage side is less than the qualified voltage value at the current moment based on the substation topology relationship described in S3 is as follows: S31: Let p and q both represent the station area numbers, let p=1, q=1; S32: Determine whether p is equal to q. If so, execute S34; otherwise, execute S33; S33: Determine the connection between the substations based on the feeder substation topology relationship. Take substation p as the reference. If there is no other substation between substation q and substation p, mark substation q as the adjacent substation of substation p and execute S34. If there is another substation between substation q and substation p, execute S34. S34: Increase the value of q by 1. If q is greater than n, execute S35; otherwise, return to S32; S35: Increase the value of p by 1. If p is greater than n, execute S36; otherwise, set q = 1 and return to S32; S36: Obtain the distance between each over-limit area and the feeder head end, and mark each over-limit area in ascending order as over-limit area 1, over-limit area 2, ..., over-limit area m , m Indicates the total number of over-limit areas; S37: Group the over-limit areas.

[0008] Preferably, the process of grouping the over-limit areas in S37 is as follows: S371: Let the order k of the k-th over-limit station be 1, h The order h of the cluster of each station area is 0; S372: If the restricted area is exceeded If it already belongs to any substation group, execute S378; otherwise, execute S373; S373: Increase the value of h by 1 and assign the out-of-limit area k to the hth area group. ; S374: Order l The order of the over-limit areas l Take 1; S375: If you cross the restricted area Already belongs to any Taiwan region group, or , then execute S377; otherwise, execute S376; S376: If you cross the restricted area Belongs to the Taiwan area group Any adjacent area within the area will be considered as the out-of-limit area. Belongs to the Taiwan region group , execute S377; otherwise, execute S377.

[0009] S377: Order l The value of is increased by 1, if , then execute S378; otherwise, return to execute S375; S378: Increase the value of k by 1. If , end; otherwise, return to execute S372.

[0010] Preferably, the process of determining the voltage regulation priority of the substation group in S4 and sorting the substation group in order of priority is as follows: S401: Let the order j of the j-th station group be 1; S402: Get the station group Number of zones within , and the group of this area The current voltage value of all the substations in the system is expressed as ; S403: Calculate the cluster The sum of the voltage differences of the current voltage values of all the substations in the; S404: Increase the value of j by 1. If , end, execute S405; otherwise, return to S402;.

[0011] S405: Rearrange the corresponding substation groups in descending order of the sum of the voltage differences of the current voltage values of all substations in different substation groups, as follows: .

[0012] Preferably, the calculation of the station group in S403 The voltage difference expression is:

[0013] in, Indicates the voltage qualified value.

[0014] Preferably, the priority of voltage regulation for each substation in each substation group is calculated, and in each substation group, the substations are sorted by priority as follows: S411: Let the order j of the j-th station group be 1; S412: Get the station group Number of middle areas and the sum of the voltage difference , and number all the substations in the substation group, expressed as: , and also obtained the Taiwan area group The current voltage value of all the substations in the ; S413: Set the order i of the i-th station to 1; S414: Calculate the voltage over-limit level of the i-th substation; S415: Increase the value of i by 1. If , then execute S416, otherwise return to execute S414; S416: Set the voltage limit Sort by voltage limit in descending order Corresponding to the Taiwan area groups The priority of the middle area is to get the area group The priority order of the middle platform area; S417: Order The value of is increased by 1, if , then end, otherwise, return to execute S412.

[0015] Preferably, the expression for calculating the voltage over-limit degree of the i-th substation in S414 is: ; in, Indicates the voltage limit level of the ith station area, Indicates the voltage qualified value.

[0016] In the second aspect, the present application proposes an electronic device comprising: a memory, a processor, and a program stored on the memory and runnable on the processor, wherein the processor is configured to read the program in the memory to implement the steps of the method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation.

[0017] In a third aspect, the present application proposes a readable storage medium for storing a program, which, when executed by a processor, implements the steps of the method for coordinated deployment of voltage control devices based on feeder-level voltage regulation.

[0018] In a fourth aspect, the present application proposes a voltage control device coordinated deployment system based on feeder-level voltage regulation, the system comprising: The data acquisition and processing module numbers the substations in ascending order of their distance from the feeder head end under the same feeder line; and obtains the current voltage on the low-voltage side of each substation; An analysis and judgment module determines whether the voltage on the low-voltage side of at least one transformer substation is lower than the qualified voltage value at the current moment; The substation grouping module groups substations whose low-voltage side voltage is less than the qualified voltage value at the current moment based on the feeder substation topology when the current voltage on the low-voltage side of at least one substation is less than the qualified voltage value. The substation voltage control analysis module is used to determine the voltage control priority of the substation group, sort the substation groups in order of priority, calculate the voltage control priority of each substation in each substation group, and sort the substations in each substation group according to priority; The voltage control equipment commissioning analysis module is used to analyze whether the voltage control equipment of the substations in the substation group has been fully commissioned. Based on the analysis results, the voltage control equipment of the substations in the substation group is put into operation.

[0019] Compared with the prior art, the beneficial effects of the technical solution of the present invention are: The present invention proposes a method and system for coordinated deployment of voltage control equipment based on feeder-level voltage regulation. Taking the feeder to which the substation belongs as a whole, the current voltage of the low-voltage side of all substations under the same feeder is analyzed. Based on the feeder substation topology relationship, the substations whose current voltage on the low-voltage side is less than the qualified voltage value are grouped into substations and their control capabilities are analyzed. The voltage control priority of the substation group and the priority of voltage control of each substation in each substation group are determined, and then voltage control is performed in sequence, thereby achieving feeder-level substation voltage unification. The method and system proposed by the present invention can realize the coordinated management of substation voltage from the feeder level, improve the substation voltage control capability, and achieve feeder-level substation voltage unification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram showing a flow chart of a method for coordinated deployment of voltage control devices based on feeder-level voltage regulation according to Embodiment 1 of the present invention; Figure 2 A schematic diagram showing the structure of an electronic device proposed in Embodiment 3 of the present invention; Figure 3 A schematic diagram showing the structure of a voltage control device coordinated deployment system based on feeder-level voltage regulation proposed in Example 4 of the present invention. DETAILED DESCRIPTION

[0021] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present application; In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the actual size; It is understandable to those skilled in the art that descriptions of certain well-known contents may be omitted in the drawings.

[0022] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0023] The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present application. Example 1 This embodiment proposes a voltage control device coordinated deployment method based on feeder-level voltage regulation, see Figure 1 , Figure 1 The voltage control device coordinated deployment method based on feeder-level voltage regulation shown can be executed by an electronic device.

[0024] like Figure 1 As shown, the method includes the following steps: S1: Under the same feeder, number the substations in ascending order of their distance from the feeder head end, and obtain the current voltage on the low-voltage side of each substation; In this embodiment, the stations are numbered in order of the distance from the feeder head end to the station area from the smallest to the largest, which means that the stations are numbered in order of the distance from the feeder head end to the station area from the nearest to the farthest, and the stations are numbered as station area 1, station area 2, , Taiwan area , n represents the total number of substations on the same feeder.

[0025] The current voltage of the low-voltage side of each substation is obtained in the following order: The area where the voltage on the low-voltage side is less than the qualified voltage value at the current moment is recorded as an over-limit area. In this embodiment, the qualified voltage value is 9.3kV. S2: Determine whether the current voltage on the low-voltage side of at least one substation is lower than the qualified voltage value. If so, execute S3; otherwise, end. S3: Based on the feeder substation topology, the substations whose current voltage on the low-voltage side is less than the qualified voltage value are grouped into substations.

[0026] In this embodiment, the topological relationship of the feeder substations can describe the main feeder lines, branch lines, and their connection sequence, and determine the substation access. The substation group is represented as follows: , v Indicates the total number of clusters in the area.

[0027] S4: Determine the voltage control priority of the substation group, sort the substation groups in order of priority, calculate the voltage control priority of each substation in each substation group, and sort the substations in each substation group according to priority; S5: The total number of station groups is v , the order of the stations in the jth station group is i, and the total number of stations in the jth station group is ,make j =1, i =1; S6: Judgment j Is it greater than v ,If ,alarm, end, otherwise, execute S7; S7: Judgment i Is it greater than H j If yes, increase the value of j by 1 and return to S6; otherwise, execute S8 according to the priority of voltage regulation of each substation in each substation group; S8: Determine the jth station group i Have all the voltage control equipment in each area been put into operation? If so, i The value of is increased by 1, and the process returns to S7; otherwise, a group of voltage control devices in the i-th substation in the j-th substation group is put into operation, the current voltage on the low-voltage side of each substation is obtained, and S9 is executed; S9: Determine whether there is at least one transformer substation whose low-voltage side voltage is lower than the qualified voltage value at the current moment. If so, return to execute S8; otherwise, end.

[0028] This embodiment takes the feeder to which the substation belongs as a whole, analyzes the current voltage on the low-voltage side of all substations under the same feeder, and based on the feeder substation topology, groups the substations whose current voltage on the low-voltage side is less than the qualified voltage value into substation groups and regulates their capacity, determines the voltage regulation priority of the substation group and the priority of voltage regulation of each substation in each substation group, and then performs voltage regulation in sequence, thereby achieving feeder-level substation voltage unification. The method and system proposed in the present invention can realize the coordinated management of substation voltage from the feeder level, improve the substation voltage regulation capability, and achieve feeder-level substation voltage unification.

[0029] Example 2 The process of grouping the substations whose low-voltage side voltage is less than the qualified voltage value at the current moment based on the substation topology relationship described in S3 is specifically as follows: S31: Let p and q both represent the station area numbers, let p=1, q=1; S32: Determine whether p is equal to q. If so, execute S34; otherwise, execute S33; S33: Determine the connection between the substations based on the feeder substation topology relationship. Take substation p as the reference. If there is no other substation between substation q and substation p, mark substation q as the adjacent substation of substation p and execute S34. If there is another substation between substation q and substation p, execute S34. S34: Increase the value of q by 1. If q is greater than n, execute S35; otherwise, return to S32; S35: Increase the value of p by 1. If p is greater than n, execute S36; otherwise, set q = 1 and return to S32; S36: Obtain the distance between each over-limit area and the feeder head end, and mark each over-limit area in ascending order as over-limit area 1, over-limit area 2, ..., over-limit area m , m Indicates the total number of over-limit areas; S37: Group the over-limit areas.

[0030] The process of grouping the over-limit areas in S37 is as follows: S371: Let the order k of the k-th over-limit station be 1, h The order h of the cluster of each station area is 0; S372: If the restricted area is exceeded If it already belongs to any substation group, execute S378; otherwise, execute S373; S373: Increase the value of h by 1 and assign the out-of-limit area k to the hth area group. ; S374: Order l The order of the over-limit areas l Take 1; S375: If you cross the restricted area Already belongs to any Taiwan region group, or , then execute S377; otherwise, execute S376; S376: If you cross the restricted area Belongs to the Taiwan area group Any adjacent area within the area will be considered as the out-of-limit area. Belongs to the Taiwan region group , execute S377; otherwise, execute S377.

[0031] S377: Order l The value of is increased by 1, if , then execute S378; otherwise, return to execute S375; S378: Increase the value of k by 1. If , end; otherwise, return to execute S372.

[0032] In this embodiment, the process of determining the voltage control priority of the substation group in S4 and sorting the substation group in order of priority is as follows: S401: Let the order j of the j-th station group be 1; S402: Get the station group Number of zones within , and the group of this area The current voltage value of all the substations in the system is expressed as ; S403: Calculate the cluster The sum of the voltage differences of the current voltage values of all the substations in the; Computing area group The voltage difference expression is:

[0033] in, Indicates the voltage qualified value.

[0034] S404: Increase the value of j by 1. If , end, execute S405; otherwise, return to S402;.

[0035] S405: Rearrange the corresponding substation groups in descending order of the sum of the voltage differences of the current voltage values of all substations in different substation groups, as follows: .

[0036] In this embodiment, the priority of each substation in each substation group for voltage regulation is calculated. In each substation group, the substations are sorted by priority as follows: S411: Let the order j of the j-th station group be 1; S412: Get the station group Number of middle areas and the sum of the voltage difference , and number all the substations in the substation group, expressed as: , and also obtained the Taiwan area group The current voltage value of all the substations in the ; S413: Set the order i of the i-th station to 1; S414: Calculate the voltage over-limit level of the i-th substation; The expression for calculating the voltage over-limit degree of the ith substation is: ; in, Indicates the voltage limit level of the ith station area, Indicates the voltage qualified value.

[0037] S415: Increase the value of i by 1. If , then execute S416, otherwise return to execute S414; S416: Set the voltage limit Sort by voltage limit in descending order Corresponding to the Taiwan area groups The priority of the middle area is to get the area group The priority order of the middle platform area; S417: Order The value of is increased by 1, if , then end, otherwise, return to execute S412.

[0038] Example 3 like Figure 2As shown, 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 capable of running on the processor 201. When the program 2021 is executed by the processor 201, Figure 1 Any steps in the corresponding method embodiments and achieving the same beneficial effects will not be repeated here.

[0039] It is understandable that all or part of the steps of the above-mentioned embodiment method can be completed 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 is stored on the readable storage medium, and when the computer program is executed by the processor, the above-mentioned Figure 1 Any step in the corresponding method embodiment can achieve the same technical effect.

[0040] Example 4 like Figure 3 As shown, this embodiment provides a voltage control equipment coordinated deployment system based on feeder level voltage regulation, see Figure 3 , the system comprises: The data acquisition and processing module numbers the substations in ascending order of their distance from the feeder head end under the same feeder line; and obtains the current voltage on the low-voltage side of each substation; An analysis and judgment module determines whether the voltage on the low-voltage side of at least one transformer substation is lower than the qualified voltage value at the current moment; The substation grouping module groups substations whose low-voltage side voltage is less than the qualified voltage value at the current moment based on the feeder substation topology when the current voltage on the low-voltage side of at least one substation is less than the qualified voltage value. The substation voltage control analysis module is used to determine the voltage control priority of the substation group, sort the substation groups in order of priority, calculate the voltage control priority of each substation in each substation group, and sort the substations in each substation group according to priority; The voltage control equipment commissioning analysis module is used to analyze whether the voltage control equipment of the substations in the substation group has been fully commissioned. Based on the analysis results, the voltage control equipment of the substations in the substation group is put into operation.

[0041] Specifically, the analysis results include: Figure 1 The detailed process shown is as follows: "S5: Set the total number of clusters in the area to v, the order of the stations in the jth station group is i, and the total number of stations in the jth station group is ,make j =1, i =1; S6: Judgment j Is it greater than v ,If ,alarm, end, otherwise, execute S7; S7: Judgment i Is it greater than H j If yes, increase the value of j by 1 and return to S6; otherwise, execute S8 according to the priority of voltage regulation of each substation in each substation group; S8: Determine the jth station group i Have all the voltage control equipment in each area been put into operation? If so, i The value of is increased by 1, and the process returns to S7; otherwise, a group of voltage control devices in the i-th substation in the j-th substation group is put into operation, and S9 is executed; S9: Obtain the current voltage on the low-voltage side of each substation, and determine whether the current voltage on the low-voltage side of at least one substation is less than the qualified voltage value. If so, return to S8; otherwise, end. The system proposed in this embodiment can realize the Figure 1 Each process of the method embodiment achieves the same beneficial effects.

[0042] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation, characterized in that: The following steps are involved: S1: Under the same feeder, number the substations in ascending order of their distance from the feeder head end, and obtain the current voltage on the low-voltage side of each substation; S2: Determine whether the current voltage on the low-voltage side of at least one substation is lower than the qualified voltage value. If so, execute S3. Otherwise, end; S3: Based on the feeder substation topology, the substations where the current voltage on the low-voltage side is less than the qualified voltage value are grouped into substations; S4: Determine the voltage control priority of the substation group, sort the substation groups in order of priority, calculate the voltage control priority of each substation in each substation group, and sort the substations in each substation group according to priority; S5: The total number of station groups is v , the order of the stations in the jth station group is i, and the total number of stations in the jth station group is ,make j =1, i =1; S6: Judgment j Is it greater than v ,If ,alarm, end, otherwise, execute S7; S7: Judgment i Is it greater than H j If so, increase the value of j by 1 and return to S6; Otherwise, execute S8 according to the priority of voltage regulation of each substation in each substation group; S8: Determine the jth station group i Have all the voltage control equipment in each area been put into operation? If so, i The value of is increased by 1 and returns to S7; Otherwise, a group of voltage control devices in the i-th substation in the j-th substation group is put into operation, the current voltage on the low-voltage side of each substation is obtained, and S9 is executed; S9: Determine whether there is at least one transformer substation whose low-voltage side voltage is lower than the qualified voltage value at the current moment. If so, return to execute S8; otherwise, end.

2. The method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to claim 1, characterized in that: In S1, each area is numbered as Area 1, Area 2, , Taiwan area , n Indicates the total number of substations under the same feeder; the current voltage of the low-voltage side of each substation is obtained in the following order: The substation where the voltage on the low-voltage side is less than the qualified voltage value at the current moment is recorded as an out-of-limit substation, and the substation group is represented as: , v Indicates the total number of groups in the area; The process of grouping the substations where the voltage on the low-voltage side is less than the qualified voltage value at the current moment based on the substation topology relationship described in S3 is as follows: S31: Let p and q both represent the station area numbers, let p=1, q=1; S32: Determine whether p is equal to q. If so, execute S34. Otherwise, execute S33; S33: Determine the connection between the substations based on the feeder substation topology relationship. Take substation p as the reference. If there is no other substation between substation q and substation p, mark substation q as the adjacent substation of substation p and execute S34. If there is another substation between substation q and substation p, execute S34. S34: Increase the value of q by 1. If q is greater than n, execute S35; otherwise, return to S32; S35: Increase the value of p by 1. If p is greater than n, execute S36; otherwise, set q = 1 and return to S32; S36: Obtain the distance between each over-limit area and the feeder head end, and mark each over-limit area in ascending order as over-limit area 1, over-limit area 2, ..., over-limit area m , m Indicates the total number of over-limit areas; S37: Group the over-limit areas.

3. The method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to claim 2, characterized in that: The process of grouping the over-limit areas in S37 is as follows: S371: Let the order k of the k-th over-limit station be 1, h The order h of the cluster of each station area is 0; S372: If the restricted area is exceeded If it already belongs to any substation group, execute S378; otherwise, execute S373; S373: Increase the value of h by 1 and assign the out-of-limit area k to the hth area group. ; S374: Order l The order of the over-limit areas l Take 1; S375: If you cross the restricted area Already belongs to any Taiwan region group, or , then execute S377; Otherwise, execute S376; S376: If you cross the restricted area Belongs to the Taiwan area group Any adjacent area within the area will be considered as the out-of-limit area. Belongs to the Taiwan region group , execute S377; Otherwise, execute S377. S377: Order l The value of is increased by 1, if , then execute S378; Otherwise, return to execute S375; S378: Increase the value of k by 1. If , end; otherwise, return to execute S372.

4. The method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to claim 3, characterized in that: The process of determining the voltage regulation priority of the substation group in S4 and sorting the substation group in order of priority is as follows: S401: Let the order j of the j-th station group be 1; S402: Get the station group Number of zones within , and the group of this area The current voltage value of all the substations in the system is expressed as ; S403: Calculate the cluster The sum of the voltage differences of the current voltage values of all the substations in the; S404: Increase the value of j by 1. If , end, execute S405; otherwise, return to S402;. S405: Rearrange the corresponding substation groups in descending order of the sum of the voltage differences of the current voltage values of all substations in different substation groups, as follows: .

5. The method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to claim 4, characterized in that: S403 calculates the cluster of stations The voltage difference expression is: in, Indicates the voltage qualified value.

6. The method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to claim 4, characterized in that: Calculate the priority of voltage regulation for each substation in each substation group. In each substation group, sort the substations by priority as follows: S411: Let the order j of the j-th station group be 1; S412: Get the station group Number of middle areas and the sum of the voltage difference , and number all the substations in the substation group, expressed as: , and also obtained the Taiwan area group The current voltage value of all the substations in the ; S413: Set the order i of the i-th station to 1; S414: Calculate the voltage over-limit level of the i-th substation; S415: Increase the value of i by 1. If , then execute S416, otherwise return to execute S414; S416: Set the voltage limit Sort by voltage limit in descending order Corresponding to the Taiwan area groups in turn The priority of the middle area is to get the area group The priority order of the middle platform area; S417: Order The value of is increased by 1, if , then end, otherwise, return to execute S412.

7. The method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to claim 6, characterized in that: The expression for calculating the voltage over-limit degree of the ith substation described in S414 is: ； in, Indicates the voltage limit level of the ith station area, Indicates the voltage qualified 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 used to read the program in the memory to implement the steps of the method for coordinated deployment of voltage control equipment 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 a processor, the steps of the method for coordinated deployment of voltage control equipment based on feeder-level voltage regulation according to any one of claims 1 to 7 are implemented.

10. A voltage control equipment coordinated deployment system based on feeder-level voltage regulation, characterized in that: The system comprises: The data acquisition and processing module numbers the substations in ascending order of their distance from the feeder head end under the same feeder line; and obtains the current voltage on the low-voltage side of each substation; An analysis and judgment module determines whether the voltage on the low-voltage side of at least one transformer substation is lower than the qualified voltage value at the current moment; The substation grouping module groups substations whose low-voltage side voltage is less than the qualified voltage value at the current moment based on the feeder substation topology when the current voltage on the low-voltage side of at least one substation is less than the qualified voltage value. The substation voltage control analysis module is used to determine the voltage control priority of the substation group, sort the substation groups in order of priority, calculate the voltage control priority of each substation in each substation group, and sort the substations in each substation group according to priority; The voltage control equipment commissioning analysis module is used to analyze whether the voltage control equipment of the substations in the substation group has been fully commissioned. Based on the analysis results, the voltage control equipment of the substations in the substation group is put into operation.

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