Power distribution network heavy overload scheduling method, device and equipment based on topological structure

Abstract

The invention discloses a power distribution network heavy overload scheduling method, device and equipment based on a topological structure. The method comprises the following steps: generating a power grid topological structure according to power grid related data and a topological updating mechanism; based on the power grid topological structure, analyzing the connection relation between the equipment and the line, and generating a resource effective response set which comprises a line response set and a main transformer response set; according to the resource effective response set, judging whether the virtual power plant resource can completely solve the equipment heavy overload problem or not, and if yes, calculating equivalent impedance between nodes based on a power grid topological structure; and heavy and overload resource scheduling is carried out according to the equivalent impedance and a preset resource calling rule. According to the resource scheduling method and device, the technical problem that the resource scheduling effect based on the heavy overload condition is poor due to the fact that the distribution structure characteristics of distributed resources are not fully considered in the prior art and the flexibility of resource scheduling is limited can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of distribution network dispatching, and in particular to a distribution network heavy overload dispatching method, device and equipment based on a topology structure. Background Art

[0002] At present, with the rapid growth of electricity load and the rapid access of new loads such as charging cars, the risk of heavy overload faced by distribution network equipment is increasing. Traditionally, the load carrying capacity of the distribution network is enhanced by newly expanded main transformers or new lines, but this method has high economic costs and a long cycle. In contrast, virtual power plants, as an innovative power management technology, use advanced information technology and software systems to achieve intelligent aggregation and coordinated optimization of multiple distributed resources such as distributed power sources, energy storage systems, and adjustable loads, providing a new way to alleviate the problem of heavy overload in the distribution network.

[0003] However, the current virtual power plants are still rough in resource calling and fail to fully consider the specific structural characteristics of distributed resources, which limits the maximization of their flexible scheduling capabilities and cannot meet the scheduling needs of heavily overloaded distribution networks, resulting in low efficiency in distributed resource utilization and a lack of stability in distribution network operation. Summary of the invention

[0004] The present application provides a distribution network heavy overload scheduling method, device and equipment based on topology structure, which is used to solve the technical problem that the existing technology does not fully consider the distribution structure characteristics of distributed resources, limits the flexibility of resource scheduling, and leads to poor resource scheduling effect based on heavy overload conditions.

[0005] In view of this, the first aspect of the present application provides a distribution network heavy overload dispatching method based on a topology structure, comprising:

[0006] Generate a power grid topology structure based on power grid related data and topology update mechanism;

[0007] Analyzing the connection relationship between the equipment and the line based on the power grid topology structure, and generating a resource effective response set, wherein the resource effective response set includes a line response set and a main transformer response set;

[0008] Determine whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set, and if so, calculate the equivalent impedance between nodes based on the power grid topology structure;

[0009] Heavy overload resource scheduling is performed according to the equivalent impedance and preset resource calling rules.

[0010] Preferably, generating a power grid topology structure according to power grid related data and a topology update mechanism includes:

[0011] Acquire grid-related data from a grid dispatching system, a marketing system, and a geographic information system, wherein the grid-related data includes substation data, transmission line information, transformer information, and virtual power plant resource user information;

[0012] A topology update mechanism is introduced to generate a power grid topology structure in combination with the power grid related data.

[0013] Preferably, the connection relationship between the equipment and the line is analyzed based on the power grid topology structure, and a resource effective response set is generated, and the resource effective response set includes a line response set and a main transformer response set, including:

[0014] Based on the power grid topology structure, the connection relationship between each device and the line in the power grid is obtained, and the line relationship and the main transformer relationship are generated;

[0015] The review aggregator and the proxy resources within the connection range are searched respectively according to the line relationship and the main transformer relationship, a line response set and a main transformer response set are generated, and a resource effective response set is obtained.

[0016] Preferably, judging whether the virtual power plant resources can completely solve the equipment overload problem according to the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure, further comprises:

[0017] Calculate the total amount of load reduction required for heavy overload of the equipment, and calculate the total amount of responsive load of the virtual power plant resources according to the effective response set of the resources;

[0018] Then, judging whether the virtual power plant resources can completely solve the equipment overload problem according to the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure, including:

[0019] By comparing the total amount of load reduction required with the total amount of responsive load, it is determined whether the virtual power plant resources can completely solve the problem of equipment overload. If so, the equivalent impedance between nodes is calculated based on the power grid topology.

[0020] Preferably, judging whether the virtual power plant resources can completely solve the equipment overload problem according to the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure, further includes:

[0021] If the virtual power plant resources cannot completely solve the problem of heavy equipment overload, all resources in the effective response set of the resource will be called.

[0022] The second aspect of the present application provides a distribution network heavy overload dispatching device based on a topology structure, comprising:

[0023] A topology generation unit, used for generating a power grid topology structure according to power grid related data and a topology update mechanism;

[0024] A resource analysis unit, configured to analyze the connection relationship between the equipment and the line based on the power grid topology structure, and generate a resource effective response set, wherein the resource effective response set includes a line response set and a main transformer response set;

[0025] A response judgment unit, configured to judge whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set, and if so, calculate the equivalent impedance between nodes based on the power grid topology structure;

[0026] The resource scheduling unit is used to perform heavy overload resource scheduling according to the equivalent impedance and preset resource calling rules.

[0027] Preferably, the topology generating unit is specifically used for:

[0028] Acquire grid-related data from a grid dispatching system, a marketing system, and a geographic information system, wherein the grid-related data includes substation data, transmission line information, transformer information, and virtual power plant resource user information;

[0029] A topology update mechanism is introduced to generate a power grid topology structure in combination with the power grid related data.

[0030] Preferably, the resource analysis unit is specifically used to:

[0031] Based on the power grid topology structure, the connection relationship between each device and the line in the power grid is obtained, and the line relationship and the main transformer relationship are generated;

[0032] The review aggregator and the proxy resources within the connection range are searched respectively according to the line relationship and the main transformer relationship, a line response set and a main transformer response set are generated, and a resource effective response set is obtained.

[0033] Preferably, it also includes:

[0034] A resource calculation unit, used to calculate the total amount of load reduction required for heavy overload of equipment, and calculate the total amount of responsive load of virtual power plant resources according to the effective response set of resources;

[0035] The response determination unit is specifically used for:

[0036] By comparing the total amount of load reduction required with the total amount of responsive load, it is determined whether the virtual power plant resources can completely solve the problem of equipment overload. If so, the equivalent impedance between nodes is calculated based on the power grid topology.

[0037] A third aspect of the present application provides a distribution network heavy overload dispatching device based on a topology structure, the device comprising a processor and a memory;

[0038] The memory is used to store program code and transmit the program code to the processor;

[0039] The processor is used to execute the distribution network heavy overload scheduling method based on topology structure described in the first aspect according to the instructions in the program code.

[0040] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0041] In the present application, a distribution network heavy overload scheduling method based on topology structure is provided, including: generating a power grid topology structure according to power grid related data and a topology update mechanism; analyzing the connection relationship between equipment and lines based on the power grid topology structure, and generating a resource effective response set, the resource effective response set including a line response set and a main transformer response set; judging whether the virtual power plant resources can completely solve the equipment heavy overload problem based on the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure; and scheduling heavy overload resources according to the equivalent impedance and preset resource calling rules.

[0042] The topology-based distribution network heavy overload scheduling method provided in the present application generates the latest power grid topology based on power grid-related data and topology update mechanism; and the virtual power plant resources associated with heavy overload equipment can be accurately identified based on the precise mapping of the power grid topology; and then, through the judgment of effective response resources, accurate heavy overload resource scheduling is performed according to the equivalent impedance between nodes and certain rules. The resource scheduling of this process is flexible and targeted, which is more in line with the actual characteristics of virtual power plant resource scheduling, and can meet the scheduling requirements to ensure the scheduling effect. Therefore, the present application can solve the technical problem that the prior art does not fully consider the distribution structure characteristics of distributed resources, limits the flexibility of resource scheduling, and leads to poor resource scheduling effects based on heavy overload conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of a flow chart of a distribution network heavy overload dispatching method based on a topology structure provided in an embodiment of the present application;

[0044] Figure 2 A schematic diagram of the structure of a distribution network heavy overload dispatching device based on a topology structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] For easier understanding, see Figure 1 , the present application provides an embodiment of a topology-based distribution network heavy overload dispatching method, including:

[0047] Step 101: Generate a power grid topology structure according to power grid related data and a topology update mechanism.

[0048] Furthermore, step 101 includes:

[0049] Obtain grid-related data from the grid dispatching system, marketing system, and geographic information system. Grid-related data includes substation data, transmission line information, transformer information, and virtual power plant resource user information;

[0050] A topology update mechanism is introduced to generate the power grid topology structure in combination with power grid related data.

[0051] It should be noted that the power grid-related data covers many levels and information dimensions, and needs to be obtained from different distribution network correlation coefficients. The specific acquisition process is not limited here and can be designed according to actual conditions. If other relevant data are needed in the process of generating the topology structure, they can also be directly obtained, and are not limited to the concepts recorded in this embodiment. Introducing a topology update mechanism based on power grid-related data is to fully consider the impact of dynamic changes such as distribution network switch operation, fault recovery, and temporary wiring, to ensure that the generated power grid topology is the latest and most in line with actual characteristics, and to ensure that the subsequent virtual power plant resource scheduling decisions based on this topology are the most reliable.

[0052] Step 102: Analyze the connection relationship between the equipment and the line based on the power grid topology structure, and generate a resource effective response set, which includes a line response set and a main transformer response set.

[0053] Further, step 102 includes:

[0054] Based on the grid topology, the connection relationship between each device and line in the grid is obtained, and the line relationship and main transformer relationship are generated;

[0055] According to the line relationship and the main transformer relationship, the review aggregator and the agent resources within the connection range are searched respectively, and the line response set and the main transformer response set are generated to obtain the resource effective response set.

[0056] According to the control requirements of the power dispatching platform, the power grid topology structure in this embodiment is based on a detailed topology model of "station-line-transformer-user"; therefore, the connection relationship between each device and the line can be obtained from the power grid topology structure, and the virtual power plant resources under the jurisdiction of the heavy overload equipment of the distribution network below 110kv level can be located. It is mainly analyzed from the two perspectives of line and main transformer, so what is generated is the line relationship and the main transformer relationship.

[0057] Based on the radial operation characteristics of the 110kv power grid, the virtual power plant resources that can be called by the heavy overload equipment can be found and located according to the line relationship and the main transformer relationship. For heavy overload lines of 110kV and below, all load aggregators and their proxy resources connected to the active power flow outflow end node of the line are found, that is, the virtual power plant resources that can be invited to respond to solve the heavy overload of the line, forming an effective line response set; for heavy overload main transformers of 110kV and below, all load aggregators and their proxy resources within the jurisdiction of the main transformer are found, that is, the virtual power plant resources that can be invited to respond to solve the heavy overload of the line, forming an effective main transformer response set. The line response set and the main transformer response set can constitute a resource effective response set for subsequent heavy overload scheduling analysis.

[0058] Step 103: determine whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set. If so, calculate the equivalent impedance between nodes based on the power grid topology.

[0059] Furthermore, step 103, before that, also includes:

[0060] Calculate the total amount of load reduction required for heavy overload of equipment, and calculate the total amount of responsive load of virtual power plant resources based on the effective response set of resources;

[0061] Then step 103 includes:

[0062] By comparing the total amount of load reduction required with the total amount of load that can be responded to, it is determined whether the virtual power plant resources can completely solve the problem of equipment overload. If so, the equivalent impedance between nodes is calculated based on the grid topology.

[0063] Furthermore, step 103 further includes:

[0064] If the virtual power plant resources cannot completely solve the equipment overload problem, all resources in the effective response set will be called upon.

[0065] It should be noted that before making judgment and analysis based on the effective response set of resources, it is necessary to calculate the total amount of load reduction required for heavy overload and the total amount of load that the effective response resources of the virtual power plant can respond to. The specific calculation process is as follows:

[0066]

[0067] in, , are the total amount of load required to be reduced and the total amount of load that can be responded to, respectively. is the rated capacity, is the rated load ratio; The resource effective response set of the virtual power plant resources The responsive load of the i-th device in is N, and N is the total number of devices.

[0068] By comparing and analyzing the total amount of load reduction required and the total amount of responsive load, it can be determined whether the current total amount of responsive load can completely solve the heavy overload problem of the heavy overload equipment. , it means that the effective response set of the virtual power plant resources can completely solve the heavy overload problem of heavy overload equipment; if , it means that the effective response set of virtual power plant resources cannot completely solve the heavy overload problem of heavy overload equipment.

[0069] Two different resource scheduling methods can be adopted for the two judgment results. For situations that cannot be completely solved, all resources need to be scheduled to alleviate the heavy overload pressure of the heavily overloaded equipment, and then solve the heavy overload problem based on other auxiliary means. The specific implementation can be based on the existing solution, which will not be elaborated here.

[0070] For situations that can be solved, this embodiment proposes that resource scheduling needs to be based on certain principles, and the first thing to consider is the analysis of topological distance. When reducing the total resource load of the virtual power plant in the distribution network, priority will be given to reducing the distance to the peak shaving target, that is, the node resource load with a longer topological distance from the heavily overloaded equipment; because one of the characteristics of distribution network line loss and voltage reduction is that: as the distance from the power node increases, the loss and voltage reduction caused by the load passing through the line will gradually increase; based on this, the flexible scheduling capability of virtual power plant resources can be maximized to improve the loss and voltage quality of the distribution network lines corresponding to the heavily overloaded equipment, and more effectively solve the heavy overload problem.

[0071] Therefore, this embodiment requires flexible and efficient resource scheduling based on topological distance, and the distance of topological distance can be determined based on the equivalent impedance between nodes. Quantitative description, equivalent impedance The larger the value is, the farther the topological distance is. The farther the topological distance is, the more it is necessary to give priority to reducing its resource load consumption. Here, the distant node refers to the node with schedulable resources, which is far away from the node to be supported. For the equivalent impedance between node i and node j The calculation process is expressed as:

[0072]

[0073] in, represents the element in the i-th row and j-th column of the impedance matrix, , They represent the self-impedance of node i and node j respectively.

[0074] Step 104: Perform heavy overload resource scheduling according to equivalent impedance and preset resource calling rules.

[0075] In the process of heavy overload resource dispatch, in addition to considering the influence of equivalent impedance expressed by topological distance, the virtual power plant resource dispatch at the same node should also consider the preset resource call rule of "price priority, capacity priority". The preset resource call rule is to use the difference in the total amount of heavy overload to be reduced as the upper limit, and sort the response resource call order from low to high according to the declared price. If the declared price is determined by the quotations of two or more responding resources, the clearing volume is allocated according to the proportion of the declared capacity of each company during the period.

[0076] The topology-based distribution network heavy overload scheduling method provided in the embodiment of the present application generates the latest power grid topology based on power grid-related data and a topology update mechanism; and the virtual power plant resources associated with heavy overload equipment can be accurately identified based on the precise mapping of the power grid topology; and then, through the judgment of effective response resources, accurate heavy overload resource scheduling is performed according to the equivalent impedance between nodes and certain rules. The resource scheduling of this process is flexible and targeted, which is more in line with the actual characteristics of virtual power plant resource scheduling, and can meet scheduling requirements to ensure scheduling effects. Therefore, the embodiment of the present application can solve the technical problem that the prior art does not fully consider the distribution structure characteristics of distributed resources, limits the flexibility of resource scheduling, and leads to poor resource scheduling effects based on heavy overload conditions.

[0077] For easier understanding, see Figure 2 The present application provides an embodiment of a distribution network heavy overload dispatching device based on a topology structure, including:

[0078] A topology generation unit 201 is used to generate a power grid topology structure according to power grid related data and a topology update mechanism;

[0079] The resource analysis unit 202 is used to analyze the connection relationship between the equipment and the line based on the power grid topology structure, and generate a resource effective response set, which includes a line response set and a main transformer response set;

[0080] A response judgment unit 203 is used to judge whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set, and if so, calculate the equivalent impedance between nodes based on the power grid topology structure;

[0081] The resource scheduling unit 204 is used to perform heavy overload resource scheduling according to equivalent impedance and preset resource calling rules.

[0082] Furthermore, the topology generating unit 201 is specifically configured to:

[0083] Obtain grid-related data from the grid dispatching system, marketing system, and geographic information system. Grid-related data includes substation data, transmission line information, transformer information, and virtual power plant resource user information;

[0084] A topology update mechanism is introduced to generate the power grid topology structure in combination with power grid related data.

[0085] Furthermore, the resource analysis unit 202 is specifically configured to:

[0086] Based on the grid topology, the connection relationship between each device and line in the grid is obtained, and the line relationship and main transformer relationship are generated;

[0087] According to the line relationship and the main transformer relationship, the review aggregator and the agent resources within the connection range are searched respectively, and the line response set and the main transformer response set are generated to obtain the resource effective response set.

[0088] Furthermore, it also includes:

[0089] Resource calculation unit 205, used to calculate the total amount of load reduction required for heavy overload of equipment, and calculate the total amount of responsive load of virtual power plant resources according to the effective resource response set;

[0090] The response judgment unit 203 is specifically used to:

[0091] By comparing the total amount of load reduction required with the total amount of load that can be responded to, it is determined whether the virtual power plant resources can completely solve the problem of equipment overload. If so, the equivalent impedance between nodes is calculated based on the grid topology.

[0092] The present application also provides a distribution network heavy overload dispatching device based on a topology structure, the device comprising a processor and a memory;

[0093] The memory is used to store the program code and transmit the program code to the processor;

[0094] The processor is used to execute the distribution network heavy overload scheduling method based on topology structure in the above method embodiment according to the instructions in the program code.

[0095] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0096] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0097] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0098] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions for executing all or part of the steps of the method described in each embodiment of the present application through a computer device (which can be a personal computer, server, or network device, etc.). The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (full name in English: Read-Only Memory, English abbreviation: ROM), random access memory (full name in English: Random Access Memory, English abbreviation: RAM), disk or optical disk and other media that can store program codes.

[0099] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A distribution network heavy overload dispatching method based on topology structure, characterized in that: include: Generate a power grid topology structure based on power grid related data and topology update mechanism; Analyzing the connection relationship between the equipment and the line based on the power grid topology structure, and generating a resource effective response set, wherein the resource effective response set includes a line response set and a main transformer response set; Determine whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set, and if so, calculate the equivalent impedance between nodes based on the power grid topology structure; Heavy overload resource scheduling is performed according to the equivalent impedance and preset resource calling rules.

2. The distribution network heavy overload dispatching method based on topology structure according to claim 1 is characterized in that: The generating of the power grid topology structure according to the power grid related data and the topology updating mechanism includes: Acquire grid-related data from a grid dispatching system, a marketing system, and a geographic information system, wherein the grid-related data includes substation data, transmission line information, transformer information, and virtual power plant resource user information; A topology update mechanism is introduced to generate a power grid topology structure in combination with the power grid related data.

3. The distribution network heavy overload dispatching method based on topology structure according to claim 1 is characterized in that: The connection relationship between the equipment and the line is analyzed based on the power grid topology structure, and a resource effective response set is generated, wherein the resource effective response set includes a line response set and a main transformer response set, including: Based on the power grid topology structure, the connection relationship between each device and the line in the power grid is obtained, and the line relationship and the main transformer relationship are generated; The review aggregator and the proxy resources within the connection range are searched respectively according to the line relationship and the main transformer relationship, a line response set and a main transformer response set are generated, and a resource effective response set is obtained.

4. The distribution network heavy overload dispatching method based on topology structure according to claim 1 is characterized in that: The method further comprises: determining whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure. Calculate the total amount of load reduction required for heavy overload of the equipment, and calculate the total amount of responsive load of the virtual power plant resources according to the effective response set of the resources; Then, judging whether the virtual power plant resources can completely solve the equipment overload problem according to the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure, including: By comparing the total amount of load reduction required with the total amount of responsive load, it is determined whether the virtual power plant resources can completely solve the problem of equipment overload. If so, the equivalent impedance between nodes is calculated based on the power grid topology.

5. The distribution network heavy overload dispatching method based on topology structure according to claim 1 is characterized in that: The method of judging whether the virtual power plant resources can completely solve the equipment overload problem according to the resource effective response set, and if so, calculating the equivalent impedance between nodes based on the power grid topology structure, further includes: If the virtual power plant resources cannot completely solve the problem of heavy equipment overload, all resources in the effective response set of the resource will be called.

6. A distribution network heavy overload dispatching device based on topological structure, characterized in that: include: A topology generation unit, used for generating a power grid topology structure according to power grid related data and a topology update mechanism; A resource analysis unit, configured to analyze the connection relationship between the equipment and the line based on the power grid topology structure, and generate a resource effective response set, wherein the resource effective response set includes a line response set and a main transformer response set; A response judgment unit, configured to judge whether the virtual power plant resources can completely solve the equipment overload problem based on the resource effective response set, and if so, calculate the equivalent impedance between nodes based on the power grid topology structure; The resource scheduling unit is used to perform heavy overload resource scheduling according to the equivalent impedance and preset resource calling rules.

7. The distribution network heavy overload dispatching device based on topology structure according to claim 6 is characterized in that: The topology generation unit is specifically used for: Acquire grid-related data from a grid dispatching system, a marketing system, and a geographic information system, wherein the grid-related data includes substation data, transmission line information, transformer information, and virtual power plant resource user information; A topology update mechanism is introduced to generate a power grid topology structure in combination with the power grid related data.

8. The distribution network heavy overload dispatching device based on topology structure according to claim 6 is characterized in that: The resource analysis unit is specifically used for: Based on the power grid topology structure, the connection relationship between each device and the line in the power grid is obtained, and the line relationship and the main transformer relationship are generated; The review aggregator and the proxy resources within the connection range are searched respectively according to the line relationship and the main transformer relationship, a line response set and a main transformer response set are generated, and a resource effective response set is obtained.

9. The distribution network heavy overload dispatching device based on topology structure according to claim 6, characterized in that: Also includes: A resource calculation unit, used to calculate the total amount of load reduction required for heavy overload of equipment, and calculate the total amount of responsive load of virtual power plant resources according to the effective response set of resources; The response determination unit is specifically used for: By comparing the total amount of load reduction required with the total amount of responsive load, it is determined whether the virtual power plant resources can completely solve the problem of equipment overload. If so, the equivalent impedance between nodes is calculated based on the power grid topology.

10. A distribution network heavy overload dispatching device based on topology structure, characterized in that: The device comprises a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the distribution network heavy overload scheduling method based on topology structure according to any one of claims 1-5 according to the instructions in the program code.

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