Inter-station load transfer method, system and device and storage medium

Abstract

The invention relates to the technical field of power grid load regulation and control, and provides an inter-station load transfer method, system and device and a storage medium, and the method comprises the following steps: obtaining basic data of an original station area with a heavy overload problem; searching a target transformer area which takes the original transformer area as a center and is within a preset transfer distance threshold range, and acquiring basic data of the target transformer area; generating a plurality of alternative schemes for transferring the original transformer area load to a target transformer area, and forming an alternative scheme set; and calculating the comprehensive benefit of any alternative scheme based on the distribution room load time sequence characteristics, and executing the alternative scheme with the maximum comprehensive benefit to complete the load transfer between the distribution rooms.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid load regulation and control, and more specifically, to a method, system, device and storage medium for load transfer between substations. Background Art

[0002] With the development of the economy and the improvement of people's living conditions, the demand for electricity is growing rapidly. Due to insufficient consideration in the early planning and construction, the distribution substation area is difficult to adapt to the rapid increase in electricity demand, and is prone to heavy overload problems. New distribution transformers or expansion of distribution transformers can essentially increase the power supply capacity of the distribution substation area, but this method takes a long time and may also cause extravagance and waste in terms of economy. If there is a distribution transformer with surplus capacity near the heavily overloaded substation area, part of the load of the heavily overloaded substation area can be transferred to other distribution transformers, thereby effectively utilizing the surplus capacity of other distribution transformers and quickly and economically solving the heavy overload problem.

[0003] At present, load transfer between substations usually relies on the experience of on-site personnel to make judgments. For example, the transfer plan is determined based on the criterion that the sum of the maximum value of the transferred load and the maximum value of the original load of the distribution transformer to be connected does not exceed the overload threshold of the distribution transformer. This approach lacks a more scientific decision-making process and cannot guarantee the effect of load transfer. At present, it is also proposed to conduct a safety analysis of the main load transformers and lines in the substation area, identify potential over-limit fault nodes and overload fault nodes, and determine the load transfer path of the over-limit nodes through topological search, formulate corresponding load transfer strategies, and determine the optimal load transfer plan with the minimum average overload rate. However, this plan does not take into account the peak load of the distribution transformer and the benefits of the substation area to carry out demand response, and there are problems of high load transfer costs and low benefits. Summary of the invention

[0004] In order to overcome the defects of high cost and low benefit of inter-substation load transfer in the above-mentioned prior art, the present invention provides an inter-substation load transfer method, system, device and storage medium.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A method for load transfer between stations, comprising the following steps:

[0007] Obtain basic data of the original substation area with heavy overload problems;

[0008] Searching for a target area centered on the original area and within a preset transfer distance threshold, and acquiring basic data of the target area;

[0009] Generate a number of alternative plans for transferring the load of the original area to a target area to form an alternative plan set;

[0010] The comprehensive benefit of any alternative plan is calculated based on the time series characteristics of the substation load, and the alternative plan with the largest comprehensive benefit is executed to complete the load transfer between substations.

[0011] Furthermore, the present invention also proposes a load transfer system between substations, which applies the load transfer method between substations proposed by the present invention. The system comprises:

[0012] A data acquisition module, used to obtain basic data of an original area with a heavy overload problem, and to search for a target area centered on the original area and within a preset transfer distance threshold, and obtain basic data of the target area;

[0013] A scheme generation module is used to generate a number of alternative schemes for transferring the load of the original area to a target area to form an alternative scheme set;

[0014] The analysis strategy module is used to calculate the comprehensive benefits of any alternative plan based on the time series characteristics of the load in the substation area, and output the alternative plan with the largest comprehensive benefit.

[0015] Furthermore, the present invention also proposes a device, including a memory and a processor, wherein the memory stores computer-readable instructions, wherein when the computer-readable instructions are executed by the processor, the processor executes all or part of the steps of the inter-station load transfer method described in the present invention.

[0016] Furthermore, the present invention also proposes a storage medium on which computer-readable instructions are stored, wherein the computer-readable instructions, when executed by a processor, implement all or part of the steps of the inter-station load transfer method as described in the present invention.

[0017] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0018] The present invention evaluates alternative plans based on comprehensive benefits, comprehensively considers the costs and benefits of load transfer between substations and load participation in demand response, and reasonably evaluates the costs and benefits of load transfer, so as to ensure that the load transfer plan finally selected meets the demand response benefit requirements of the substation area, while ensuring the optimization effect of load transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a flow chart of a method for load transfer between substations according to an embodiment of the present invention.

[0020] Figure 2 The figure is a schematic diagram of historical load data of distribution transformers in the original substation within 7 days before load transfer according to an embodiment of the present invention.

[0021] Figure 3The figure is a schematic diagram of the historical load data of the distribution transformer of the target substation 1 within 7 days before the load transfer according to an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the historical load data of the distribution transformer of the target substation 2 within 7 days before the load transfer according to an embodiment of the present invention.

[0023] Figure 5 The figure is a structural diagram of an inter-substation load transfer system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0025] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0026] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] This embodiment proposes a load transfer method between stations, such as Figure 1 FIG. 1 is a flow chart of the load transfer method between substations according to the present embodiment.

[0030] The load transfer method between substations proposed in this embodiment includes the following steps:

[0031] S1. Obtain basic data of the original substation area with heavy overload problem;

[0032] S2, searching for a target area centered on the original area and within a preset transfer distance threshold, and acquiring basic data of the target area;

[0033] S3, generating a number of alternative plans for transferring the load of the original area to a target area, forming an alternative plan set;

[0034] S4. Calculate the comprehensive benefits of any alternative plan based on the time series characteristics of the substation load, and select the alternative plan with the greatest comprehensive benefit to complete the load transfer between substations.

[0035] This embodiment evaluates alternative plans based on comprehensive benefits, comprehensively considers the costs and benefits of load transfer between substations and load participation in demand response, and reasonably evaluates the costs and benefits of load transfer, so as to ensure that the load transfer plan finally selected meets the demand response benefit requirements of the substation area, while ensuring the optimization effect of load transfer.

[0036] In an optional embodiment, the basic data of the original substation includes the distribution transformer coordinates of the substation, the distribution transformer capacity S T0 , Comprehensive Cost of Distribution Transformer C T0 , Distribution transformer operating life L T0 , distribution transformer historical load data Comprehensive cost per unit length of trunk line C K0a 、Trunk line operating life L L0a and historical load data of trunk lines Where a is the number of the main line, and a=1,2,...,N a , N a is the number of main lines; d is the number of days, and d=1,2,...,N d , N d is the total number of days; t is the number of the data collection time, and t=1,2,...,N t , N t The total number of data collections per day.

[0037] Furthermore, in an optional embodiment, the basic data of the target area includes the distance r between the target area and the original area. j , the distribution transformer capacity S of the target area Tj , Comprehensive Cost of Distribution Transformer C Tj , Distribution transformer operating life L Tj and distribution transformer historical load data Among them, j is the distance from the original area that is not greater than the transfer distance threshold r smax The number of the target area, and j = 1, 2, ..., N j , N j is the total number of target areas.

[0038] In this embodiment, the historical load data refers to the load data of a period before the current time.

[0039] Exemplarily, the period is 30 days or 7 days.

[0040] In an optional embodiment, the generating of a plurality of alternative solutions for transferring the load of the original area to a target area includes:

[0041] Transfer the load of the ath trunk line in the original area to the jth target area; where:

[0042] a=1,2,...,N a , N a is the number of main lines; j = 1, 2, ..., N j , N j is the total number of target areas.

[0043] In step S3 of this embodiment, there are N a ×N j There are alternatives, and s is used to represent the number of the alternative, that is, s = 1, 2, ..., N a ×N j .

[0044] Furthermore, in an optional embodiment, the method further comprises the following steps:

[0045] S301, performing capacity verification on each alternative solution in the set of alternative solutions; wherein:

[0046] For the sth alternative, determine the target area j mentioned in it. s Distribution transformer historical load data The original area trunk line a s Historical load data of trunk lines Whether the maximum value of the sum is less than a preset capacity threshold, if so, the capacity check is passed and the alternative solution is retained; otherwise, the capacity check is not passed and the alternative solution is deleted from the set of alternative solutions; a s is the number of the main line selected in alternative s; j s is the number of the target station area selected in alternative s.

[0047] Exemplarily, the capacity threshold is in is the target station j selected in alternative s s The distribution transformer capacity. Then the expression of the above judgment condition is:

[0048]

[0049] After capacity verification, a screened set of alternative solutions S' is obtained.

[0050] In an optional embodiment, the method of calculating the comprehensive benefit of any alternative solution based on the time series characteristics of the load in the substation includes the following steps:

[0051] For the sth alternative, the original load transfer capacity benefit G of the comprehensive alternative is 0P (s), the original area demand response benefit H 0D (s), target area demand response benefit G 1D (s), and the target area load transfer capacity cost C of the alternative solution 1P (s), cost of new line C L (s) Calculate the comprehensive benefits; the expression is:

[0052]

[0053] In this embodiment, the original area load transfer capacity benefit G 0P (s) represents the benefit of the distribution transformer capacity margin brought about by the maximum load reduction of the original distribution transformer after load transfer, which is determined by the product of the annual cost equivalent to the comprehensive cost of the original distribution transformer and the ratio of the maximum load reduction before and after the original distribution transformer load transfer to the distribution transformer capacity. Its expression is:

[0054]

[0055] In the formula, C T0 is the comprehensive cost of the distribution transformer in the original area, r is the discount rate, L T0 is the operating life of the distribution transformer in the original substation; is the historical load data of the distribution transformer in the original substation area, is the main line a selected in alternative s s Historical load data of S T0 is the distribution transformer capacity of the original substation; a s is the number of the main line selected in alternative s, and a s =1,2,...,N a , N a is the number of main lines; d is the number of days, and d=1,2,...,N d , N d is the total number of days; t is the number of the data collection time, and t=1,2,...,N t , N t The total number of data collections per day.

[0056] The original area demand response benefit G 0D(s) and the target area demand response benefit G 1D (s) is the maximum value of the difference between the benefit of the distribution transformer capacity margin brought about by the decrease in the maximum load of the distribution transformer after the substation responds to demand and the cost of demand response. Its expression is:

[0057]

[0058]

[0059] Where P 0Dmax , P 1Dmax are the maximum loads of the original area and the target area after implementing demand response, respectively, 0D 、p 1D are the demand response subsidy prices of the original area and the target area respectively; Δt is the time interval between two adjacent collection times; k D is the sensitivity of DR participation to DR subsidy prices; is the target station j selected in alternative s s The comprehensive cost of distribution transformer, is the target station j selected in alternative s s The operating life of distribution transformer; is the target station j selected in alternative s s Distribution transformer historical load data; is the target station j selected in alternative s s The distribution transformer capacity; s is the number of the target station selected in alternative s, and j s =1,2,...,N j , N j is the total number of target areas.

[0060] Among them, the maximum load P of the original area and the target area after the demand response is executed 0Dmax , P 1Dmax The following constraints are met:

[0061]

[0062] Where mean(·) is the mean value function.

[0063] The target area load transfer capacity cost C 1P (s) represents the cost of distribution transformer capacity occupation caused by the increase in the maximum load of the target distribution transformer after load transfer. Its expression is:

[0064]

[0065] In the formula, the first term represents the annual cost equivalent to the comprehensive cost of the distribution transformer in the target area, and the second term represents the ratio of the maximum load increase before and after the load transfer in the target area to the distribution transformer capacity;

[0066] The new line cost C L (s) represents the cost of the new line from the target area distribution transformer to the original area distribution transformer for load transfer, which is determined by the annual cost equivalent of the comprehensive cost of the new line. Its expression is:

[0067]

[0068] In the formula, Indicates the main line a selected in alternative s s The comprehensive cost per unit length; Indicates the main line a selected in alternative s s The service life of the main line; represents the target station j selected in the alternative s s The distance from the original station area.

[0069] For example, the sensitivity k in this embodiment is D The value is 0.2.

[0070] Further optionally, the original area demand response benefit G 0D (s) and the target area demand response benefit G 1D (s) is the maximization optimization problem, which is solved by artificial intelligence optimization algorithm.

[0071] For example, a genetic algorithm and / or a particle swarm algorithm are used to calculate the original area demand response benefit G 0D (s) and the target area demand response benefit G 1D (s) to solve.

[0072] As an example, the load transfer method between substations proposed in this embodiment is applied to an original substation. The data of the original substation and two target substations are obtained with a transfer distance threshold of 0.1 km. The historical load data of the distribution transformers of the original substation, target substation 1 and target substation 2 within 7 days before the load transfer are as follows: Figure 2 to Figure 4 In this example, the original substation, target substation 1 and target substation 2 all use 500kVA dry-type transformers, with a comprehensive cost of 122,690 yuan and a service life of 20 years; the original substation has 3 trunk lines, all of which use the BVV-120 model, with a comprehensive cost per unit length of 95,298 yuan / km and a service life of 15 years; the distance between target substation 1 and the original substation is 0.08km, and the distance between target substation 2 and the original substation is 0.07km.

[0073] Further generated alternatives are as follows:

[0074] Alternative 1: Transfer the first trunk line of the original area to the first target area;

[0075] Alternative Plan 2: Transfer the second trunk line of the original area to the first target area;

[0076] Alternative 3: Transfer the third trunk line of the original area to the first target area;

[0077] Alternative 4: Transfer the first trunk line of the original area to the second target area;

[0078] Alternative 5: Transfer the second trunk line of the original area to the second target area;

[0079] Alternative Plan 6: Transfer the 3rd trunk line of the original substation to the 2nd target substation.

[0080] Further capacity verification is conducted on alternative plans 1 to 6, and all the plans on file are retained.

[0081] Furthermore, the discount rate is taken as 10%, and the comprehensive benefits and various benefits and costs of each alternative are obtained as shown in Table 1 below.

[0082] Table 1 Comprehensive benefits and various benefits and costs of each alternative plan

[0083] Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 G(s) -504 -639 -429 144 545 766 <![CDATA[G 0P (s)]]> 3183 4102 5697 3183 4102 5697 <![CDATA[G 0D (s)]]> 238 300 223 238 300 223 <![CDATA[G 1D (s)]]> 256 370 313 205 266 316 <![CDATA[C 1P (s)]]> 3179 4409 5723 2605 3246 4593 <![CDATA[C L (s)]]> 1002 1002 1002 877 877 877

[0084] As can be seen from the above table, alternative 6 has the greatest comprehensive benefit, so alternative 6 is selected for inter-station load transfer. Therefore, this embodiment can ensure that the load transfer scheme finally selected meets the demand response benefit requirements of the substation area and ensures the optimization effect of load transfer.

[0085] Example 2

[0086] This embodiment proposes a load transfer system between substations, and applies the load transfer method between substations proposed in Embodiment 1. Figure 5 , which is a schematic diagram of the inter-station load transfer system of this embodiment.

[0087] The inter-station load transfer system proposed in this embodiment includes:

[0088] A data acquisition module, used to obtain basic data of an original area with a heavy overload problem, and to search for a target area centered on the original area and within a preset transfer distance threshold, and obtain basic data of the target area;

[0089] A scheme generation module is used to generate a number of alternative schemes for transferring the load of the original area to a target area to form an alternative scheme set;

[0090] The analysis strategy module is used to calculate the comprehensive benefits of any alternative plan based on the time series characteristics of the load in the substation area, and output the alternative plan with the largest comprehensive benefit.

[0091] Furthermore, in an optional embodiment, the system further includes a solution verification module, configured to perform capacity verification on each alternative solution in the set of alternative solutions.

[0092] Among them, for the sth alternative, determine the target station j mentioned therein s Distribution transformer historical load data The original area trunk line a s Historical load data of trunk lines Whether the maximum value of the sum is less than a preset capacity threshold, if so, the capacity check is passed and the alternative solution is retained; otherwise, the capacity check is not passed and the alternative solution is deleted from the set of alternative solutions; a s is the number of the main line selected in alternative s; j s is the number of the target station area selected in alternative s.

[0093] It can be understood that the system of this embodiment corresponds to the method of the above-mentioned embodiment 1, and the options in the above-mentioned embodiment 1 are also applicable to this embodiment, so they will not be described repeatedly here.

[0094] Example 3

[0095] This embodiment proposes a computer device, including a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the inter-station load transfer method proposed in Embodiment 1.

[0096] Example 4

[0097] This embodiment proposes a storage medium on which computer-readable instructions are stored, wherein the computer-readable instructions, when executed by a processor, implement the steps of the inter-station load transfer method proposed in Embodiment 1.

[0098] Exemplarily, the storage medium includes, but is not limited to, a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0099] Exemplarily, the instructions, programs, code sets or instruction sets may be implemented using conventional programming languages.

[0100] Exemplarily, the processor includes but is not limited to a smart phone, a personal computer, a server, a network device, etc., and is used to execute all or part of the steps of the inter-station load transfer method described in Example 1.

[0101] Each embodiment of the present invention is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely exemplary, in which the modules described as separate components may or may not be physically separated, and the functions of each module can be implemented in the same or one or more software and / or hardware when implementing the scheme of the present invention. It is also possible to select some or all of the modules according to actual needs to achieve the purpose of the scheme of this embodiment.

[0102] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for load transfer between stations, characterized in that: The following steps are involved: Obtain basic data of the original substation area with heavy overload problems; Searching for a target area centered on the original area and within a preset transfer distance threshold, and acquiring basic data of the target area; Generate a number of alternative plans for transferring the load of the original area to a target area to form an alternative plan set; The comprehensive benefit of any alternative plan is calculated based on the time series characteristics of the substation load, and the alternative plan with the largest comprehensive benefit is executed to complete the load transfer between substations.

2. The inter-station load transfer method according to claim 1, characterized in that: The basic data of the original substation area includes the distribution transformer coordinates of the substation area, the distribution transformer capacity S T0 , Comprehensive Cost of Distribution Transformer C T0 , Distribution transformer operating life L T0 , distribution transformer historical load data Comprehensive cost per unit length of trunk line C L0a 、Trunk line operating life L L0a and historical load data of trunk lines Where a is the number of the main line, and a=1,2,...,N a , N a is the number of main lines; d is the number of days, and d=1,2,...,N d , N d is the total number of days; t is the number of the data collection time, and t=1,2,...,N t , N t The total number of data collection times per day; The basic data of the target area includes the distance r between the target area and the original area j , the distribution transformer capacity S of the target area Tj , Comprehensive Cost of Distribution Transformer C Tj , Distribution transformer operating life L Tj and distribution transformer historical load data Among them, j is the distance from the original area that is not greater than the transfer distance threshold r smax The number of the target area, and j = 1, 2, ..., N j , N j is the total number of target areas.

3. The inter-station load transfer method according to claim 1, characterized in that: The generating of a plurality of alternative solutions for transferring the load of the original area to a target area includes: Transfer the load of the ath trunk line in the original area to the jth target area; where a=1,2,...,N a , N a is the number of main lines; j = 1, 2, ..., N j , N j is the total number of target areas.

4. The inter-station load transfer method according to claim 3, characterized in that: The method further comprises the following steps: performing capacity verification on each alternative solution in the set of alternative solutions; wherein: For the sth alternative, determine the target area j mentioned in it. s Distribution transformer historical load data The original area trunk line a s Historical load data of trunk lines Whether the maximum value of the sum is less than a preset capacity threshold, if so, the capacity check is passed and the alternative solution is retained; otherwise, the capacity check is not passed and the alternative solution is deleted from the set of alternative solutions; a s is the number of the main line selected in alternative s; j s is the number of the target station area selected in alternative s.

5. The inter-station load transfer method according to any one of claims 1 to 4, characterized in that: The method of calculating the comprehensive benefit of any alternative solution based on the time series characteristics of the load in the substation area includes the following steps: For the sth alternative, the original load transfer capacity benefit G of the comprehensive alternative is 0P (s), the original area demand response benefit G 0D (s), target area demand response benefit G 1D (s), and the target area load transfer capacity cost C of the alternative solution 1P (s), cost of new line C L (s) Calculate the comprehensive benefits; the expression is: G(s)=G 0P (s)+G 0D (s)+G 1D (s)-C 1P (s)-C L (s); Among them, the original load transfer capacity benefit G 0P (s) represents the benefit of the distribution transformer capacity margin brought about by the maximum load reduction of the original distribution transformer after load transfer, which is determined by the product of the annual cost equivalent to the comprehensive cost of the original distribution transformer and the ratio of the maximum load reduction before and after the original distribution transformer load transfer to the distribution transformer capacity; its expression is: In the formula, C T0 is the comprehensive cost of the distribution transformer in the original area, r is the discount rate, L T0 is the operating life of the distribution transformer in the original substation; is the historical load data of the distribution transformer in the original substation area, is the main line a selected in alternative s s Historical load data of S T0 is the distribution transformer capacity of the original substation; a s is the number of the main line selected in alternative s, and a s =1,2,...,N a , N a is the number of main lines; d is the number of days, and d=1,2,...,N d , N d is the total number of days; t is the number of the data collection time, and t=1,2,...,N t , N t The total number of data collection times per day; The original area demand response benefit G 0D (s) and the target area demand response benefit G 1D (s) is the maximum value of the difference between the benefit of the distribution transformer capacity margin brought about by the decrease in the maximum load of the distribution transformer after the substation responds to demand and the cost of demand response; its expression is: Where P 0Dmax , P 1Dmax are the maximum loads of the original area and the target area after the demand response is executed, and they meet Among them, mean(·) is the mean value function; p 0D 、p 1D are the demand response subsidy prices of the original area and the target area respectively; Δt is the time interval between two adjacent collection times; k D The sensitivity of DR participation to DR subsidy prices; is the target station j selected in alternative s s The comprehensive cost of distribution transformer, is the target station j selected in alternative s s The operating life of distribution transformer; is the target station j selected in alternative s s Distribution transformer historical load data; is the target station j selected in alternative s s The distribution transformer capacity; s is the number of the target station selected in alternative s, and j s =1,2,...,N j , N j is the total number of target areas; The target area load transfer capacity cost C 1P (s) represents the cost of distribution transformer capacity occupation caused by the increase in the maximum load of the target distribution transformer after load transfer; its expression is: In the formula, the first term represents the annual cost equivalent to the comprehensive cost of the distribution transformer in the target area, and the second term represents the ratio of the maximum load increase before and after the load transfer in the target area to the distribution transformer capacity; The new line cost C L (s) represents the cost of the new line from the target area distribution transformer to the original area distribution transformer for load transfer, which is determined by the annual cost equivalent of the comprehensive cost of the new line; its expression is: In the formula, Indicates the main line a selected in alternative s s The comprehensive cost per unit length; Indicates the main line a selected in alternative s s The service life of the main line; represents the target station j selected in the alternative s s The distance from the original station area.

6. The inter-station load transfer method according to claim 5, characterized in that: The original area demand response benefit G 0D (s) and the target area demand response benefit G 1D (s) is the maximization optimization problem, which is solved by artificial intelligence optimization algorithm.

7. An inter-station load transfer system, using the inter-station load transfer method according to any one of claims 1 to 6, characterized in that: include: A data acquisition module, used to obtain basic data of an original area with a heavy overload problem, and to search for a target area centered on the original area and within a preset transfer distance threshold, and obtain basic data of the target area; A scheme generation module is used to generate a number of alternative schemes for transferring the load of the original area to a target area to form an alternative scheme set; The analysis strategy module is used to calculate the comprehensive benefits of any alternative plan based on the time series characteristics of the load in the substation area, and output the alternative plan with the largest comprehensive benefit.

8. The inter-station load transfer system according to claim 7, characterized in that: The system further includes a solution verification module, which is used to perform capacity verification on each alternative solution in the set of alternative solutions; wherein: For the sth alternative, determine the target area j mentioned in it. s Distribution transformer historical load data The original area trunk line a s Historical load data of trunk lines Whether the maximum value of the sum is less than a preset capacity threshold, if so, the capacity check passes and the alternative solution is retained; otherwise, the capacity check fails and the alternative solution is deleted from the set of alternative solutions.

9. A computer device comprising a memory and a processor, wherein the memory stores computer-readable instructions, characterized in that: When the computer-readable instructions are executed by the processor, the processor executes all or part of the steps of the inter-station load transfer method according to any one of claims 1 to 6.

10. A storage medium having computer-readable instructions stored thereon, characterized in that: When the computer-readable instructions are executed by a processor, all or part of the steps of the inter-station load transfer method according to any one of claims 1 to 6 are implemented.

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