A power distribution network regulation method and device based on group control and group regulation, equipment and medium

Abstract

The present application belongs to the technical field of power distribution network regulation and control, and specifically discloses a power distribution network regulation and control method, device, equipment and medium based on group control and group regulation, which comprises the following steps: grouping the distributed power sources in each feeder according to the types of the distributed power sources, calculating the active power regulation capacity of each distributed power source group; grouping the flexible loads in each feeder according to the response time scale of the flexible loads, calculating the active power regulation capacity of each flexible load group; grouping the orderly power consumption users in each feeder according to the orderly power consumption levels of the users, calculating the regulation capacity of each orderly power consumption user group; calculating the power regulation capacity of each feeder according to the regulation capacity and sorting; sequentially simulating the regulation of each feeder according to the sorting result until the total regulation power is greater than the power supply gap, and generating a group control and group regulation strategy to regulate and control the power distribution network. The present application reduces the regulation difficulty by grouping the feeders, and avoids the technical problems of user power consumption and power grid fluctuation.

Description

Technical Field

[0001] This invention belongs to the field of power distribution network control technology, specifically relating to a power distribution network control method, device, equipment, and medium based on group control and group dispatch. Background Technology

[0002] With the development of distributed generation technology and load control technology, the distribution network has transformed from containing only non-adjustable loads to an active distribution network that includes a large number of distributed generation sources, flexible loads, and non-adjustable loads. Distributed generation sources include micro gas turbines, wind power, photovoltaics, small hydropower, and biomass power generation. Flexible loads include battery energy storage, electric vehicle clusters, industrial and mining enterprises, commercial buildings, and residential loads.

[0003] When a power supply shortage occurs in the distribution network, the current method is to establish a sequential power consumption list and implement power rationing for users listed in the list according to their sequential power consumption level until the power shortage is eliminated. This method results in users being unable to use electricity normally, significantly impacting their normal power consumption. Simultaneously, in active distribution networks, when users are subject to power rationing, it may cause significant local imbalances in distributed power sources and loads on the distribution network feeders, leading to risks to grid operation such as feeder overload or voltage exceeding limits.

[0004] Distributed power sources and flexible loads are characterized by their flexibility, dispersion, small size, and proximity to users. When distributed power sources and flexible loads account for a large proportion of an active power distribution network, they can serve as an active power regulation resource to participate in the energy regulation of the distribution network. When a power supply gap occurs in the distribution network, the output of distributed power sources and flexible loads can be adjusted first, and power rationing can be implemented for users with orderly power consumption as a last resort, thereby minimizing the impact on users' normal power consumption.

[0005] Distributed power sources, flexible loads, and users participating in orderly power consumption are numerous but geographically dispersed. While individual entities may be small, their overall impact on the network is significant. Treating each distributed power source and flexible load as a separate regulation object is not very meaningful and would result in too many variables in the calculation, making convergence difficult. Summary of the Invention

[0006] The purpose of this invention is to provide a distribution network control method, device, equipment and medium based on group control and dispatch, so as to solve the technical problem that when there is a power supply gap in the current active distribution network, the method of cutting off the load is used, which leads to users being unable to use electricity and the grid fluctuating.

[0007] To achieve the above objectives, the present invention employs the following technical solution:

[0008] Firstly, a distribution network control method based on group control and dispatch includes the following steps:

[0009] The distributed power sources in each feeder are grouped according to their type, and the active power regulation capability of each distributed power source group in each feeder is calculated.

[0010] The flexible loads in each feeder are grouped according to the response time scale of the flexible loads, and the active power regulation capability of each flexible load group in each feeder is calculated.

[0011] The orderly electricity users in each feeder are grouped according to their orderly electricity consumption level, and the regulation capacity of each orderly electricity user group in each feeder is calculated.

[0012] The power regulation capacity of each feeder is calculated and ranked based on the active power regulation capacity of each distributed power source group, each flexible load group, and each orderly power user group in each feeder.

[0013] The feeders are simulated and adjusted sequentially according to the sorting results until the total adjustment power exceeds the power supply gap, and a group control and adjustment strategy is generated to regulate the distribution network.

[0014] A further improvement of the present invention is that the step of grouping the distributed power sources in each feeder according to the type of distributed power source and calculating the active power regulation capability of each distributed power source group in each feeder specifically includes:

[0015] The distributed power sources in each feeder are divided into different distributed power source groups according to the type of distributed power source.

[0016] Obtain the active power regulation capability of each distributed energy source in each distributed power group, and calculate the active power regulation capability of each distributed power group based on the active power regulation capability of each distributed energy source.

[0017] A further improvement of the present invention is that the step of grouping the flexible loads in each feeder according to the response time scale of the flexible loads and calculating the active power regulation capability of each flexible load group in each feeder specifically includes:

[0018] The flexible loads in each feeder are divided into different flexible load groups according to the response time scale;

[0019] Obtain the active power regulation capability of each flexible load in each flexible load group, and calculate the active power regulation capability of each distributed power source group based on the active power regulation capability of each flexible load.

[0020] A further improvement of the present invention is that the step of grouping orderly power users in each feeder according to the orderly power consumption level of the users and calculating the regulation capacity of each orderly power user group in each feeder specifically includes:

[0021] The orderly electricity users in each feeder are divided into different orderly electricity user groups according to the orderly electricity use level;

[0022] Obtain the active power regulation capability of each orderly electricity user group in each orderly electricity user group, and calculate the active power regulation capability of each orderly electricity user group based on the active power regulation capability of each orderly electricity user group.

[0023] A further improvement of the present invention is that: in the step of calculating and sorting the power regulation capability of each feeder based on the active power regulation capability of each distributed power source group, the active power regulation capability of each flexible load group, and the regulation capability of each orderly power user group in each feeder, the calculation method for the power regulation capability of each feeder is as follows:

[0024]

[0025] In the formula, FDPA represents the active power regulation capability of a single feeder, DGGPAi represents the active power regulation capability of the i-th distributed power generation group in the single feeder, FLGPAj represents the active power regulation capability of the j-th flexible load group in the single feeder, and OCGPAk represents the active power regulation capability of the k-th orderly power consumption user group in the single feeder; X OCCk This indicates whether the ordered power consumption level of type OCCk is enabled. 1 indicates enabled, and 0 indicates disabled.

[0026] A further improvement of the present invention is that the step of sequentially simulating and adjusting each feeder according to the sorting results until the total adjusted power is greater than the power supply gap, and generating a group control and adjustment strategy to regulate the distribution network, specifically includes:

[0027] Simulate and calculate the active power of each feeder distributed power group after regulation;

[0028] Simulate and calculate the active power of each feeder flexible load group after adjustment;

[0029] Simulate and calculate the active power of each feeder after the orderly power consumption of the user group is adjusted;

[0030] The active power adjustment amount of each feeder is calculated based on the active power of the distributed power group after adjustment, the active power of the flexible load group after adjustment, and the active power of the orderly power consumption user group after adjustment.

[0031] Add the active power regulation of each feeder to the feeder regulation sequence in descending order of magnitude, until the sum of the active power regulation of all connected feeders exceeds the power supply gap. At this point, stop connecting new feeders and generate a group control and group dispatch strategy to control the distribution network connected to the feeders.

[0032] A further improvement of the present invention is that the active power regulation amount needs to undergo a safety verification, and the safety verification includes the following steps:

[0033] Power flow calculations are performed based on the adjusted active power of the distributed power generation groups, the adjusted active power of the flexible load groups, and the adjusted active power of the orderly power consumption groups on each feeder. The results of the power flow calculations are then verified for safety. If the safety verification is passed, the corresponding active power adjustment amount for the feeder is output. If the safety verification is not passed, the adjusted active power of the distributed power generation groups, the adjusted active power of the flexible load groups, and the adjusted active power of the orderly power consumption groups on each feeder are recalculated.

[0034] Secondly, a distribution network control device based on group control and dispatch includes:

[0035] Distributed power source group classification and calculation module: used to group the distributed power sources in each feeder according to the type of distributed power source, and calculate the active power regulation capability of each distributed power source group in each feeder.

[0036] Flexible load group classification and calculation module: used to group the flexible loads in each feeder according to the response time scale of the flexible loads, and calculate the active power regulation capability of each flexible load group in each feeder;

[0037] Orderly electricity user group classification and calculation module: It is used to group the orderly electricity users in each feeder according to the orderly electricity level of the users, and calculate the regulation capacity of each orderly electricity user group in each feeder.

[0038] Power regulation capability calculation and sorting module: used to calculate and sort the power regulation capability of each feeder based on the active power regulation capability of each distributed power source group, the active power regulation capability of each flexible load group, and the regulation capability of each orderly power user group in each feeder.

[0039] Strategy generation module: Used to simulate and adjust each feeder sequentially according to the sorting results until the total adjustment power is greater than the power supply gap, and generate a group control and adjustment strategy to regulate the distribution network.

[0040] Thirdly, a computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the aforementioned distribution network control method based on group control and dispatch.

[0041] Fourthly, a computer-readable storage medium stores a computer program that, when executed by a processor, implements the aforementioned distribution network control method based on group control and dispatch.

[0042] Compared with the prior art, the present invention has at least the following beneficial effects:

[0043] 1. This invention divides distributed power sources, flexible loads, and users participating in orderly power consumption into several groups according to their characteristics, and then adjusts and controls them. This can effectively reduce the difficulty of adjustment and avoid the technical problems of users being unable to use electricity and power grid fluctuations.

[0044] 2. This invention performs power flow calculations on the simulated and regulated distribution network to verify whether the regulated distribution network will experience heavy overload or voltage exceedance. Only the regulation strategy that passes the verification is issued to the control terminal, thereby ensuring the safety of power grid operation.

[0045] 3. When a power supply gap occurs in an active distribution network, this invention first adjusts the distributed energy resources in each feeder, then adjusts the flexible loads in the feeder, and finally adjusts the orderly power users in the feeder. This method shifts the power curtailment process from a crude, direct load shedding mode to a refined adjustment mode of multi-group coordinated control, fully utilizing the active power regulation capabilities of distributed energy resources and flexible loads in the active distribution network, and reducing the impact on users' normal power consumption. Attached Figure Description

[0046] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0047] In the attached diagram:

[0048] Figure 1 This is a flowchart of a distribution network control method based on group control and dispatch according to the present invention;

[0049] Figure 2 This is a structural block diagram of a distribution network control device based on group control and dispatching according to the present invention. Detailed Implementation

[0050] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0051] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0052] Example 1

[0053] A distribution network control method based on group control and dispatch, such as Figure 1 As shown, it includes the following steps:

[0054] S1. Group the distributed power sources in each feeder according to the type of distributed power source, and calculate the active power regulation capability of each distributed power source group in each feeder.

[0055] Specifically, distributed energy sources include solar, wind, biomass, gas, hydro, and hydrogen energy, among others. Different types of distributed energy have different regulation characteristics, therefore, they should be regulated according to their type. Distributed energy sources are typically distributed across different feeders, and distribution network regulation is usually performed on a feeder-by-feeder basis. Therefore, distributed energy sources within the same feeder should be grouped according to their power source type. The active power regulation capability of each distributed energy source group can be obtained by summing the active power regulation capabilities of each distributed energy source within the group. If there are N types of distributed energy sources, then each type is numbered DGC1, DGC2…DGCN.

[0056] Specifically, all feeders are in the same active distribution network.

[0057] Specifically, S1 includes the following steps:

[0058] S11. The distributed power sources in each feeder are divided into different distributed power source groups according to the type of distributed power source.

[0059] In a preferred embodiment of this example, if there are N feeders and M types of distributed energy sources in each feeder, then each feeder contains M distributed power source groups. The distributed power source group number of the DGCj type of distributed energy source in the i-th feeder is DGG_i_DGCj.

[0060] S12. Obtain the active power regulation capability of each distributed energy source in each distributed power group, and calculate the active power regulation capability of each distributed power group based on the active power regulation capability of each distributed energy source.

[0061]

[0062] In the formula, DGGPA represents the active power regulation capability of the distributed power generation group; N is the number of distributed power sources in the distributed power generation group, and PADGi is the active power regulation capability of the i-th distributed energy source.

[0063] S2. Group the flexible loads in each feeder according to the response time scale of the flexible loads, and calculate the active power regulation capability of each flexible load group in each feeder.

[0064] Specifically, flexible loads include battery energy storage, electric vehicle clusters, industrial and mining enterprises, commercial buildings, and residential loads.

[0065] Due to differences in the usage characteristics of the loads themselves and the types of load control terminals, flexible loads respond to load regulation at different speeds. When implementing power curtailment, loads can be categorized into three types based on their response time scale: second-level response, minute-level response, and hour-level response. When regulating flexible loads, adjustments should be made separately for loads with the same response time scale to ensure the verifiability of the load regulation effect. Flexible loads are typically distributed across different feeders, and distribution network regulation is usually performed on a feeder-by-feeder basis. Therefore, flexible loads within the same feeder should be grouped according to their response time scale type.

[0066] Specifically, S2 includes the following steps:

[0067] S21. The flexible loads in each feeder are divided into different flexible load groups according to the response time scale;

[0068] In a preferred embodiment of this example, if there are N types of flexible loads, the flexible loads of each type are numbered FLC1, FLC2...FLCN.

[0069] If there are N feeders in total, and each feeder contains M types of flexible loads, then each feeder contains M flexible load groups. The flexible load group number of the FLCj type flexible load in the i-th feeder is FLG_i_FLCj.

[0070] S22. Obtain the active power regulation capability of each flexible load in each flexible load group, and calculate the active power regulation capability of each distributed power group based on the active power regulation capability of each flexible load.

[0071] If a flexible load group contains N flexible loads, and the active power regulation capabilities of each flexible load are PAFL1, PAFL2, ..., PAFLN, then the active power regulation capability of the flexible load group is FL GPA. The calculation method is as follows:

[0072]

[0073] In the above formula, N is the number of flexible loads in the flexible load group, and PAFLi is the active power regulation capability of the i-th flexible load.

[0074] S3. Divide the orderly power users in each feeder into groups according to the orderly power consumption level of the users, and calculate the regulation capacity of each orderly power user group in each feeder.

[0075] S31. The orderly electricity users in each feeder are divided into different orderly electricity user groups according to the orderly electricity level;

[0076] In a preferred embodiment of this example, if there are N ordered power consumption levels, then the ordered power consumption levels are numbered OCC1, OCC2...OCCN.

[0077] If there are N feeders in total, and each feeder has M orderly power consumption levels, then each feeder contains M orderly power consumption user groups. The orderly power consumption user group number of the OCCj-th orderly power consumption level in the i-th feeder is OCG_i_OCCj.

[0078] S32. Obtain the active power regulation capability of each orderly electricity user group in each orderly electricity user group, and calculate the active power regulation capability of each orderly electricity user group based on the active power regulation capability of each orderly electricity user group.

[0079] If a group of ordered electricity users contains N ordered electricity users, and the active power regulation capabilities of each ordered electricity user are PAOC1, PAOC2, ..., PAOCN, then the active power regulation capability of this ordered electricity user group is OCGPA. The calculation method is as follows:

[0080]

[0081] In the above formula, N represents the number of orderly electricity users in the orderly electricity user group, and PAOCi represents the active power regulation capability of the i-th orderly electricity user.

[0082] S4. Calculate and sort the power regulation capabilities of each feeder based on the active power regulation capabilities of each distributed power source group, each flexible load group, and each orderly power user group in each feeder.

[0083] Specifically, the power regulation capability of each feeder in S4 is calculated as follows:

[0084]

[0085] In the formula, FDPA represents the active power regulation capability of a single feeder, DGGPAi represents the active power regulation capability of the i-th distributed power generation group in the single feeder, FLGPAj represents the active power regulation capability of the j-th flexible load group in the single feeder, and OCGPAk represents the active power regulation capability of the k-th orderly power consumption user group in the single feeder; X OCCk This indicates whether to enable the orderly power consumption level of type OCCk. 1 indicates enabled, and 0 indicates disabled.

[0086] S5. Perform simulated adjustment on each feeder in sequence according to the sorting results until the total adjustment power is greater than the power supply gap, and generate a group control and group adjustment strategy to regulate the distribution network.

[0087] Specifically, S5 includes the following steps:

[0088] S51. Simulate and calculate the active power of each feeder distributed power group after adjustment.

[0089] The active power output of the i-th distributed power group after the adjustment is calculated as follows:

[0090] DGGP′ i =DGGP i +DGGPA i

[0091] In the above formula, DGGP′ i DGGP represents the adjusted active power of the i-th distributed generation group. i DGGPA represents the active power of the i-th distributed power group before adjustment. i This represents the active power regulation of the i-th distributed power group.

[0092] S52. Simulate and calculate the active power of each feeder flexible load group after adjustment;

[0093] The active power output of the j-th flexible load group after adjustment is calculated as follows:

[0094] FLGP′ j =FLGP j +FLGPA j

[0095] In the above formula, FLGP′ j FLGP represents the active power of the i-th flexible load group after adjustment. j FLGPA represents the active power of the j-th flexible load group before adjustment. j This represents the active power adjustment of the j-th flexible load group.

[0096] S53. Simulate and calculate the active power of each feeder after the orderly power consumption of the user group is adjusted.

[0097] The active power output of the k-th orderly electricity user group after the simulation adjustment is calculated as follows:

[0098] OCGP′ k =OCGP k +OCGPA k

[0099] In the above formula, OCGP′ k OCGP represents the active power of the k-th ordered electricity user group after adjustment. kOCGPA represents the active power of the k-th ordered electricity user group before adjustment. k This represents the active power adjustment of the k-th orderly electricity user group.

[0100] S54. Calculate the active power adjustment amount of each feeder based on the active power of the distributed power group after adjustment, the active power of the flexible load group after adjustment, and the active power of the orderly power user group after adjustment.

[0101] The active power regulation of each feeder is the sum of the active power regulation of each group in that feeder.

[0102] S55. Perform power flow calculation based on the active power adjusted by the distributed power source groups, the flexible load groups, and the orderly power users groups of each feeder. Perform safety verification on the power flow calculation results. If the safety verification is passed, output the corresponding active power adjustment amount of the feeder. If the safety verification is not passed, re-simulate and calculate the active power adjusted by the distributed power source groups, the flexible load groups, and the orderly power users groups of each feeder in the feeder.

[0103] In a preferred embodiment of this invention, after the active power of each group in the feeder is modified to the simulated adjusted state, power flow calculation is performed on the feeder. Based on the power flow calculation results, the power grid operation safety is verified on the feeder. If the feeder has a heavy overload or voltage limit violation problem, the active power adjustment amount of each group is adjusted, and the active power adjusted state of each group is updated. Power flow calculation is performed again to verify the power grid operation safety until the safety verification is passed.

[0104] S56. Add the active power regulation of each feeder to the feeder regulation sequence in order of magnitude, from largest to smallest, until the sum of the active power regulation of all connected feeders is greater than the power supply gap. Stop connecting new feeders and generate a group control and group dispatch strategy to control the distribution network connected to the feeders.

[0105] In a preferred embodiment of this invention, the total active power deficit in the distribution network is DNPA, and there are N feeders in the distribution network. The active power regulation of the i-th feeder is FDPA. i Sort the feeders by adjustable active power from largest to smallest, and add each feeder to the feeder adjustment sequence in turn. Stop the addition process when the following condition is met:

[0106]

[0107] In the above formula, M represents the M feeds that have been added to the feeder adjustment sequence.

[0108] Adjust the active power regulation of distributed power generation groups, flexible load groups, and orderly power consumption user groups.

[0109] Example 2

[0110] A distribution network control device based on group control and dispatch, such as Figure 2 As shown, it includes:

[0111] Distributed power source group classification and calculation module: used to group the distributed power sources in each feeder according to the type of distributed power source, and calculate the active power regulation capability of each distributed power source group in each feeder.

[0112] Flexible load group classification and calculation module: used to group the flexible loads in each feeder according to the response time scale of the flexible loads, and calculate the active power regulation capability of each flexible load group in each feeder;

[0113] Orderly electricity user group classification and calculation module: It is used to group the orderly electricity users in each feeder according to the orderly electricity level of the users, and calculate the regulation capacity of each orderly electricity user group in each feeder.

[0114] Power regulation capability calculation and sorting module: used to calculate and sort the power regulation capability of each feeder based on the active power regulation capability of each distributed power source group, the active power regulation capability of each flexible load group, and the regulation capability of each orderly power user group in each feeder.

[0115] Strategy generation module: Used to simulate and adjust each feeder sequentially according to the sorting results until the total adjustment power is greater than the power supply gap, and generate a group control and adjustment strategy to regulate the distribution network.

[0116] Example 3

[0117] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements a distribution network control method based on group control and dispatch, including the following steps:

[0118] The distributed power sources in each feeder are grouped according to their type, and the active power regulation capability of each distributed power source group in each feeder is calculated.

[0119] The flexible loads in each feeder are grouped according to the response time scale of the flexible loads, and the active power regulation capability of each flexible load group in each feeder is calculated.

[0120] The orderly electricity users in each feeder are grouped according to their orderly electricity consumption level, and the regulation capacity of each orderly electricity user group in each feeder is calculated.

[0121] The power regulation capacity of each feeder is calculated and ranked based on the active power regulation capacity of each distributed power source group, each flexible load group, and each orderly power user group in each feeder.

[0122] The feeders are simulated and adjusted sequentially according to the sorting results until the total adjustment power exceeds the power supply gap, and a group control and adjustment strategy is generated to regulate the distribution network.

[0123] Example 4

[0124] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the aforementioned distribution network control method based on group control and dispatch.

[0125] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

[0126] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0127] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0128] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0129] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A distribution network control method based on group control and dispatch, characterized in that, Includes the following steps: S1. In the same active distribution network, the distributed power sources in each feeder are grouped according to the type of distributed power source, taking the feeder as the control unit. This yields the distributed power source groups in each feeder. Obtain the active power regulation capability of each distributed power source in each distributed power source group, and calculate the active power regulation capability of each distributed power source group in each feeder. S2. Group the flexible loads in each feeder according to the response time scale of the flexible loads to obtain each flexible load group in each feeder; Obtain the active power regulation capability of each flexible load in each flexible load group, and calculate the active power regulation capability of each flexible load group in each feeder. S3. Divide the orderly electricity users in each feeder into groups according to the orderly electricity consumption level of the users to obtain the orderly electricity user groups in each feeder; Obtain the active power regulation capability of each orderly electricity user group in each orderly electricity user group, and calculate the active power regulation capability of each orderly electricity user group in each feeder. S4. Based on the active power regulation capabilities of each distributed power source group, each flexible load group, and each orderly power user group in each feeder, and whether the corresponding orderly power consumption level is activated, calculate the active power regulation capability of each feeder, and rank each feeder according to its active power regulation capability; wherein, the active power regulation capability of a single feeder satisfies: In the formula, FDPA represents the active power regulation capability of a single feeder, DGGPAi represents the active power regulation capability of the i-th distributed power generation group in the single feeder, FLGPAj represents the active power regulation capability of the j-th flexible load group in the single feeder, and OCGPAk represents the active power regulation capability of the k-th orderly power consumption user group in the single feeder; X OCCk This indicates whether to enable the orderly power consumption level of type OCCk; 1 indicates enabled, and 0 indicates disabled. S5. Perform simulated adjustment on each feeder in sequence according to the sorting results; for the current feeder, simulate and calculate the active power after the adjustment of the distributed power group, the active power after the adjustment of the flexible load group, and the active power after the adjustment of the orderly power user group in sequence, and calculate the active power adjustment amount of the current feeder based on the active power after the adjustment of the distributed power group, the active power after the adjustment of the flexible load group, and the active power after the adjustment of the orderly power user group. S6. Perform power flow calculation based on the active power of the current feeder distributed power group after adjustment, the active power of the flexible load group after adjustment, and the active power of the orderly power user group after adjustment, and verify the power flow calculation results for grid operation safety. If the current feeder has a heavy overload or voltage limit violation, adjust the active power adjustment amount of each group in the current feeder, and re-perform simulation adjustment and power flow calculation until the current feeder passes the safety verification. S7. Add each feeder that has passed the safety verification to the feeder regulation sequence in descending order of active power regulation amount, until the sum of the active power regulation amounts of each feeder already added to the feeder regulation sequence is greater than the power supply gap, then stop adding new feeders, and generate a group control and group adjustment strategy for controlling the corresponding feeders in the feeder regulation sequence in the distribution network to perform regulation.

2. The distribution network control method based on group control and dispatch according to claim 1, characterized in that, The types of distributed power sources include solar energy, wind energy, biomass energy, natural gas, hydropower, and hydrogen energy. If there are a total of P feeders, and each feeder contains Q types of distributed power sources, then the distributed power source group number of the DGCj type distributed power source in the p-th feeder is DGG_p_DGCj.

3. The distribution network control method based on group control and dispatch according to claim 1, characterized in that, The flexible loads include battery energy storage, electric vehicle clusters, industrial and mining enterprises, commercial buildings, and residential loads; the response time scales include second-level response, minute-level response, and hour-level response.

4. The distribution network control method based on group control and dispatch according to claim 1, characterized in that, If there are R feeders in total, and each feeder has S types of flexible loads, then the flexible load group number of the FLCj type flexible load in the r-th feeder is FLG_r_FLCj; if there are T types of orderly power consumption levels, R feeders, and the orderly power consumption level numbers are OCC1, OCC2, ..., OCCT respectively, and each feeder has U types of orderly power consumption levels, then the orderly power consumption user group number of the OCCj type orderly power consumption in the r-th feeder is OCG_r_OCCj.

5. A distribution network control method based on group control and dispatch according to claim 1, characterized in that, When simulating and regulating the active power of distributed power sources, flexible load groups, and orderly power consumption user groups, the following conditions must be met: In the formula, This represents the active power of the i-th distributed power group after adjustment. This represents the active power of the i-th distributed power group before adjustment. This represents the active power regulation of the i-th distributed power group; This represents the active power of the j-th flexible load group after adjustment. This represents the active power of the j-th flexible load group before adjustment. This represents the active power adjustment of the j-th flexible load group; This represents the active power of the k-th ordered electricity user group after adjustment. This represents the active power of the k-th ordered electricity user group before adjustment. This represents the active power adjustment of the k-th orderly electricity user group.

6. The distribution network control method based on group control and dispatch according to claim 1, characterized in that, Let the total active power deficit in the distribution network be DNPA, the number of feeders already added to the feeder regulation sequence be W, and the active power regulation of the w-th feeder after passing the safety verification be FDPA. w The condition for stopping the addition of new feeders is: 。 7. A distribution network control device based on group control and dispatch, used to implement the distribution network control method based on group control and dispatch as described in claim 1, characterized in that, include: The distributed power generation group classification and calculation module is used to group the distributed power generation in each feeder according to the type of distributed power generation in the same active distribution network, with the feeder as the control unit, and to accumulate and calculate the active power regulation capability of each distributed power generation group in each feeder. The flexible load group classification and calculation module is used to group the flexible loads in each feeder according to the response time scale of the flexible loads, and to accumulate and calculate the active power regulation capability of each flexible load group in each feeder. The orderly electricity user group classification and calculation module is used to group the orderly electricity users in each feeder according to the orderly electricity level of the users, and to accumulate and calculate the active power regulation capability of each orderly electricity user group in each feeder. The active power regulation capability calculation and sorting module of the feeder is used to calculate the active power regulation capability of each feeder based on the active power regulation capability of each distributed power group, each flexible load group, each orderly power user group, and whether the corresponding orderly power consumption level is enabled. The module then sorts the feeders according to their active power regulation capability. The simulation adjustment and safety verification module is used to simulate the adjustment of each feeder in sequence according to the sorting results, calculate the active power adjustment of the current feeder, and perform power flow calculation and grid operation safety verification based on the active power of the distributed power group, the active power of the flexible load group, and the active power of the orderly power user group after adjustment. When the current feeder is under heavy overload or voltage exceeds the limit, adjust the active power regulation of each group in the current feeder, and re-perform simulation regulation and power flow calculation until the current feeder passes the safety verification. The strategy generation module is used to add each feeder that has passed the safety verification to the feeder regulation sequence in descending order of active power regulation amount, until the sum of the active power regulation amounts of each feeder already added to the feeder regulation sequence is greater than the power supply gap, at which point the addition of new feeders is stopped, and a group control and group adjustment strategy is generated to control the corresponding feeders in the feeder regulation sequence in the distribution network to perform regulation.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements a distribution network control method based on group control and dispatch as described in any one of claims 1 to 6.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements a distribution network control method based on group control and dispatch as described in any one of claims 1 to 6.

Images