Adaptive optimization method and system for power distribution network planning

Abstract

The invention discloses a self-adaptive optimization method and system for power distribution network planning, and relates to the technical field of power distribution network planning, and the method comprises the steps: obtaining the planning range of the power distribution network planning, obtaining the power distribution demand information in the planning range, determining the power distribution types of a plurality of power distribution ranges, and marking the power distribution types on a power distribution model; loading one or more distribution network structures in the planning library in the corresponding standby power distribution range based on the corresponding relationship to obtain one or more unit models; matching the unit models of the plurality of power distribution ranges based on the power distribution model to obtain a plurality of power distribution network planning schemes; and selecting an optimal power distribution network planning scheme from the plurality of power distribution network planning schemes as a target planning scheme. According to the method, the environment for correspondingly setting the power grid has reference of multiple planning schemes, the comprehensiveness of distribution network selection can be ensured, and then the optimal power distribution network planning scheme can be selected when the power distribution structure is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution network planning, and in particular to an adaptive optimization method and system for distribution network planning. Background Art

[0002] With the rapid development of smart grid technology, the intelligence level of distribution networks is constantly improving. The adaptive optimization method of distribution network planning is based on static load forecasting and a fixed planning framework. When planning and constructing a distribution network in a region, it is necessary to consider the electricity consumption information of each region to design the distribution network structure, which requires a lot of effort and is difficult to comprehensively give multiple distribution network structure designs for the region. It is impossible to quickly and specifically give a reasonable distribution network structure for the region, and it is difficult to select the optimal distribution network structure. Summary of the invention

[0003] The purpose of the present invention is to provide an adaptive optimization method and system for distribution network planning to address the deficiencies in the background technology.

[0004] In order to achieve the above object, the present invention provides the following technical solution: an adaptive optimization method for distribution network planning, comprising the following steps:

[0005] Obtaining a planning scope of the distribution network planning, obtaining power distribution demand information within the planning scope, wherein the power distribution demand information includes multiple power distribution scopes and corresponding load demands, and constructing a power distribution model based on the planning scope and the power distribution demand information;

[0006] Determine the power distribution types of multiple power distribution ranges respectively and mark them on the power distribution model, copy the multiple power distribution ranges respectively based on the power distribution model to obtain multiple standby power distribution ranges, and establish a corresponding relationship between the power distribution range and the planning library based on the power distribution type;

[0007] Based on the corresponding relationship, one or more distribution network structures in the planning library are loaded into the corresponding backup power distribution range to obtain one or more unit models;

[0008] Based on the power distribution model, multiple distribution range unit models are matched with each other to obtain multiple distribution network planning schemes;

[0009] The optimal distribution network planning scheme is selected from multiple distribution network planning schemes as the target planning scheme.

[0010] In a preferred embodiment, the step of constructing a power distribution model based on the planning scope and power distribution demand information includes:

[0011] Obtaining a planning scope of the distribution network planning, and obtaining multiple distribution scopes within the planning scope and corresponding load demands as distribution demand information;

[0012] An electronic map is constructed based on the planning scope, and the power distribution demand information is marked in the electronic map to obtain a power distribution model.

[0013] In a preferred embodiment, the step of respectively copying multiple power distribution ranges based on the power distribution model to obtain multiple standby power distribution ranges, and establishing a corresponding relationship between the power distribution ranges and the planning library based on the power distribution type includes:

[0014] Determine the power distribution types of multiple power distribution ranges, wherein the power distribution type includes data range information of load demand, and mark the power distribution type on the power distribution model;

[0015] Multiple power distribution ranges in the corresponding power distribution model are copied to obtain multiple power distribution range models and used as multiple standby power distribution ranges, and information of the multiple standby power distribution ranges is bound to the corresponding power distribution range;

[0016] Setting a planning library, wherein the planning library includes a power distribution type, a plurality of distribution network structures corresponding to the power distribution type, and attribute information corresponding to the distribution network structure, and marking a grid-connected terminal on the distribution network structure;

[0017] Based on the power distribution type, a power distribution range and corresponding relationships between multiple backup power distribution ranges and the power distribution types in the planning library are established.

[0018] In a preferred embodiment, the step of establishing a corresponding relationship between a power distribution range and a plurality of backup power distribution ranges and power distribution types in a planning library based on the power distribution type comprises:

[0019] Select a fixed point in each of the multiple power distribution ranges in the power distribution model, and obtain the position of the fixed point in the power distribution range corresponding to the fixed point in the multiple backup power distribution ranges as a follower fixed point;

[0020] Establish communication relationships between multiple follower fixed points in the backup power distribution range and the fixed points respectively to obtain multiple communication layers, fix and encode the communication layers to obtain communication layer identities;

[0021] Establish communication relationships between multiple fixed points within the power distribution range;

[0022] A correspondence between fixed points within multiple power distribution ranges and power distribution types in the planning library is established, and a correspondence between the power distribution range and multiple standby power distribution ranges and the power distribution types in the planning library is obtained.

[0023] In a preferred embodiment, the step of loading one or more distribution network structures in the planning library into the corresponding backup power distribution range based on the corresponding relationship to obtain one or more unit models includes:

[0024] Based on the corresponding relationship, one or more corresponding distribution network structures in the planning database are obtained through a fixed point within the distribution range;

[0025] One or more distribution network structures are stored in the corresponding communication layer through the communication relationship between the fixed point within the distribution range and the corresponding follower fixed point to obtain one or more unit models.

[0026] In a preferred embodiment, the step of matching unit models of multiple distribution ranges to obtain multiple distribution network planning schemes based on the distribution model includes:

[0027] Freely combine one or more communication layers within multiple backup power distribution ranges to obtain multiple combination schemes;

[0028] Based on the communication relationship between the fixed points within the multiple distribution ranges, the unit models of multiple backup distribution ranges in a single combination scheme are connected by communication, and the multiple unit models are connected to the grid through the grid-connected terminal to obtain a distribution network planning scheme;

[0029] Multiple combination schemes result in multiple distribution network planning schemes.

[0030] In a preferred embodiment, the step of selecting the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme includes:

[0031] Input the required attribute information to obtain the optimal index among multiple distribution network planning schemes;

[0032] The optimization plans are ranked according to the optimization index, and the distribution network planning plan corresponding to the first-ranked optimization index is taken as the target planning plan.

[0033] The present invention also provides an adaptive optimization system for distribution network planning, comprising:

[0034] An acquisition module is used to acquire the planning scope of the distribution network planning, acquire the power distribution demand information within the planning scope, wherein the power distribution demand information includes multiple power distribution scopes and corresponding load demands, and construct a power distribution model based on the planning scope and the power distribution demand information;

[0035] The planning module is connected to the acquisition module, and is used to respectively determine the power distribution types of multiple power distribution ranges and mark them on the power distribution model, and based on the power distribution model, the multiple power distribution ranges are respectively copied to obtain multiple standby power distribution ranges, and the corresponding relationship between the power distribution range and the planning library is established based on the power distribution type;

[0036] A construction module, connected to the planning module, is used to load one or more distribution network structures in the planning library into corresponding backup power distribution ranges based on the corresponding relationship to obtain one or more unit models;

[0037] A matching module, connected to the building module, is used to match unit models of multiple distribution ranges with each other based on the distribution model to obtain multiple distribution network planning schemes;

[0038] The selection module is connected to the matching module and is used to select the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme.

[0039] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0040] The present invention connects the unit models of multiple standby distribution ranges in a single combination scheme for communication based on the communication relationship between fixed points in multiple distribution ranges, and connects the multiple unit models to the grid through the grid-connected terminal to obtain a distribution network planning scheme. Multiple combination schemes obtain multiple distribution network planning schemes, and multiple distribution network planning schemes can be obtained. The environment in which the corresponding power grid is set has the reference of multiple planning schemes, which can ensure the comprehensiveness of the distribution network selection. Later, when optimizing the distribution structure, the optimal distribution network planning scheme can be selected to give effective suggestions for the construction of the distribution network. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0042] Figure 1 The present invention is a flow chart of the method.

[0043] Figure 2 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example 1, please refer to Figure 1 As shown, the adaptive optimization method for distribution network planning described in this embodiment includes the following steps:

[0046] S1. Obtain a planning scope of a distribution network plan, obtain power distribution demand information within the planning scope, wherein the power distribution demand information includes multiple power distribution scopes and corresponding load demands, and construct a power distribution model based on the planning scope and the power distribution demand information;

[0047] S2. Determine the distribution types of multiple distribution ranges respectively and mark them on the distribution model, copy the multiple distribution ranges respectively based on the distribution model to obtain multiple standby distribution ranges, and establish a corresponding relationship between the distribution ranges and the planning library based on the distribution type;

[0048] S3, based on the corresponding relationship, one or more distribution network structures in the planning library are loaded into the corresponding backup power distribution range to obtain one or more unit models;

[0049] S4. Based on the power distribution model, unit models of multiple power distribution ranges are matched with each other to obtain multiple distribution network planning schemes;

[0050] S5. Selecting the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme;

[0051] As described in the above steps S1-S5, the distribution network planning method is based on static load forecasting and a fixed planning framework. When planning and constructing a distribution network in a region, it is necessary to consider the electricity consumption information of each region to design the distribution network structure, which requires a lot of effort and is difficult to comprehensively provide multiple distribution network structure designs for the region. It is impossible to quickly and specifically provide a reasonable distribution network structure for the region, and it is difficult to select the optimal distribution network structure. In this application, based on the communication relationship between fixed points in multiple distribution ranges, the unit models of multiple backup distribution ranges in a single combination scheme are communicated and connected, and the multiple unit models are connected to the grid through the grid-connected end to obtain a distribution network planning scheme. Multiple combination schemes obtain multiple distribution network planning schemes, and multiple distribution network planning schemes can be obtained. The environment corresponding to the setting of the power grid has a reference for multiple planning schemes, which can ensure the comprehensiveness of the distribution network selection. Later, when optimizing the distribution structure, the optimal distribution network planning scheme can be selected to give effective suggestions for the construction of the distribution network.

[0052] In one embodiment, the step S1 of building a power distribution model based on the planning scope and power distribution demand information includes:

[0053] S11, obtaining a planning scope of the distribution network planning, and obtaining multiple distribution scopes within the planning scope and corresponding load demands as distribution demand information;

[0054] S12, constructing an electronic map based on the planning scope, marking the power distribution demand information in the electronic map to obtain a power distribution model;

[0055] As described in the above steps S11 and S12, when planning the distribution network, it is necessary to determine the scope of the power grid planning, and then multiple distribution ranges within the planning range and the corresponding load demands are used as distribution demand information, wherein the multiple distribution ranges are ranges of the same type of distribution load demand, for example, the range of the community power supply and distribution is used as one distribution range, and the range of factory power supply is used as another distribution range, then multiple distribution ranges are obtained according to different load demands, and then an electronic map is constructed based on the planning range, and the distribution demand information is marked in the electronic map to obtain a distribution model, which can better understand the distribution demand and location, and better carry out subsequent distribution planning;

[0056] In one embodiment, the step S2 of respectively copying multiple power distribution ranges based on the power distribution model to obtain multiple standby power distribution ranges and establishing a corresponding relationship between the power distribution ranges and the planning library based on the power distribution type includes:

[0057] S21, determining a plurality of distribution types of distribution ranges, wherein the distribution type includes data range information of load demand, and marking the distribution type on the distribution model;

[0058] S22, duplicating multiple power distribution ranges in the corresponding power distribution model to obtain multiple power distribution range models and using them as multiple standby power distribution ranges, and binding information between the multiple standby power distribution ranges and the corresponding power distribution range;

[0059] S23, setting a planning library, wherein the planning library includes a power distribution type, a plurality of distribution network structures corresponding to the power distribution type, and attribute information corresponding to the distribution network structure, and marking the grid-connected end on the distribution network structure;

[0060] S24, establishing a power distribution range and a corresponding relationship between a plurality of backup power distribution ranges and the power distribution types in the planning library based on the power distribution type;

[0061] As described in the above steps S21-S24, the distribution types of multiple distribution ranges are obtained, wherein the distribution type includes the data range information of the load demand, and the distribution type is marked on the distribution model. For example, the load of residential electricity consumption and factory electricity consumption is different, and the corresponding load demand data range information is also different. Therefore, multiple distribution ranges are divided by different electricity users, and the electricity users are entities such as residential areas or factories. After that, multiple distribution ranges in the corresponding distribution model are copied to obtain multiple distribution range models as multiple backup distribution ranges, and the multiple backup distribution ranges are bound to the corresponding distribution ranges. Each distribution range copies multiple distribution range models as multiple backup distribution ranges. , multiple backup distribution ranges are used for the distribution network structure in the planning library selected by the subsequent information carrier, and are used for the subsequent combination of the distribution network structures within the multiple distribution ranges, wherein a planning library is set, wherein the planning library includes the distribution type, multiple distribution network structures corresponding to the distribution type, and attribute information corresponding to the distribution network structure, and the grid-connected end is marked on the distribution network structure. The attribute information corresponding to the distribution network structure here includes economic attributes and technical attributes, wherein the economic attributes include investment cost and operation cost; the technical attributes include power supply capacity, reliability and other attributes, which can make adaptive selection of distribution network planning, and then optimize the planning of distribution network, have a good distribution network planning function, and can understand the multiple schemes of distribution network planning as much as possible;

[0062] In one embodiment, the step S24 of establishing a corresponding relationship between a power distribution range and a plurality of backup power distribution ranges and power distribution types in a planning library based on the power distribution type includes:

[0063] S241, selecting a fixed point in each of the multiple power distribution ranges in the power distribution model, and obtaining the position of the fixed point in the power distribution range corresponding to the fixed point in the multiple standby power distribution ranges as a follower fixed point;

[0064] S242, establishing communication relationships between multiple follower fixed points in the backup power distribution range and the fixed point respectively to obtain multiple communication layers, fixing and encoding the communication layers to obtain communication layer identities;

[0065] S243, establishing communication relationships between multiple fixed points within the power distribution range;

[0066] S244, establishing a correspondence between the fixed points within the multiple power distribution ranges and the power distribution types in the planning library, and obtaining a correspondence between the power distribution range and the multiple standby power distribution ranges and the power distribution types in the planning library;

[0067] As described in the above steps S241-S244, a fixed point is respectively selected in multiple power distribution ranges in the power distribution model, wherein the fixed point is used as a position within the power distribution range and a corresponding cloud server is set for the corresponding fixed point, and then the position of the fixed point within the power distribution range corresponding to the fixed point in the multiple backup power distribution ranges is obtained as a follower fixed point, wherein the follower fixed point is used as a position within the backup power distribution range and a corresponding cloud server is configured for the corresponding follower fixed point, the communication relationship between the follower fixed point and the fixed point is the communication relationship between the corresponding cloud servers, and the communication relationship between the fixed point and the fixed point is the communication relationship between the corresponding cloud servers, and then the communication relationship between the follower fixed points of multiple backup power distribution ranges and the fixed points is established to obtain multiple communication layers, the communication layer is fixed and encoded to obtain the communication layer identity, and the communication layer here is used to plan the load display of the distribution network structure in the library one by one in sequence in the subsequent It is displayed in the backup distribution range, and then the communication relationship between the fixed points within the multiple distribution ranges is established. In order to connect the distribution network structures of multiple backup distribution network ranges of multiple distribution ranges to each other in the future, the communication relationship between the fixed points within the multiple distribution ranges is combined with data to realize the virtual connection combination of the distribution network structures of multiple backup distribution network ranges of multiple distribution ranges. This is the subsequent distribution network planning scheme. Then, the communication relationship between the fixed points and the planning library within the multiple distribution ranges is established, that is, the communication relationship between the cloud server and the planning library, and the corresponding relationship between the distribution range and the multiple backup distribution ranges and the distribution types in the planning library is obtained. The distribution network structure of the corresponding distribution type in the planning library can be obtained through the fixed point, and the data combination and intercommunication can be realized. The distribution network organization can be better combined to obtain the optimal distribution network planning scheme, which greatly improves the comprehensiveness of the scheme combination.

[0068] In one embodiment, the step S3 of loading one or more distribution network structures in the planning library into the corresponding backup power distribution range based on the corresponding relationship to obtain one or more unit models includes:

[0069] S31, based on the corresponding relationship, obtain one or more corresponding distribution network structures in the planning database through a fixed point within the distribution range;

[0070] S32, storing one or more distribution network structures in a corresponding communication layer through the communication relationship between the fixed point within the distribution range and the corresponding follower fixed point to obtain one or more unit models;

[0071] As described in the above steps S31 and S32, based on the corresponding relationship, one or more corresponding distribution network structures in the planning library are obtained through fixed points within the distribution range. The distribution network structure here is a network structure for distribution network planning that can be implemented in the existing corresponding distribution range. One or more distribution network structures are provided to the corresponding communication layer to obtain one or more unit models. One communication layer corresponds to one distribution network structure, which can ensure the coordination of distribution network structures between multiple subsequent distribution ranges and obtain the preferred distribution network structure.

[0072] In one embodiment, the step S4 of matching unit models of multiple distribution ranges to obtain multiple distribution network planning solutions based on the distribution model includes:

[0073] S41, freely combining one or more communication layers within the multiple backup power distribution ranges to obtain multiple combination schemes;

[0074] S42, based on the communication relationship between the fixed points within the multiple distribution ranges, the unit models of the multiple standby distribution ranges in the single combination scheme are connected by communication, and the multiple unit models are connected to the grid through the grid connection terminal to obtain a distribution network planning scheme;

[0075] S43, multiple combination schemes are used to obtain multiple distribution network planning schemes;

[0076] As described in the above steps S41-S43, each communication layer stores different distribution network structures, and the same backup distribution range corresponds to the distribution network structure of the same distribution type. Then, one or more communication layers within the multiple backup distribution ranges are freely combined to obtain multiple combination schemes. This is a simple combination. Since the fixed points within the distribution range are connected to the corresponding multiple follower fixed points within the backup distribution ranges by communication, it is only necessary to use the fixed points within the distribution range to complete the communication between the corresponding multiple follower fixed points within the distribution range and the multiple follower fixed points in other distribution ranges, so that the multiple distribution ranges can be connected. The unit model in the corresponding communication layer is connected to the grid. The grid connection of the unit model here is the grid connection of the distribution network structure stored in the unit model. Then, based on the communication relationship between the fixed points in multiple distribution ranges, the unit models of multiple standby distribution ranges in a single combination scheme are connected for communication and connected to the grid through the grid-connected end to obtain a distribution network planning scheme. Multiple combination schemes obtain multiple distribution network planning schemes. Multiple distribution network planning schemes can be obtained. The environment for setting the corresponding power grid has the reference of multiple planning schemes, which can ensure the comprehensiveness of the distribution network selection. Then, when optimizing the distribution structure, the optimal distribution network planning scheme finally selected can be guaranteed.

[0077] In one embodiment, the step S5 of selecting the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme includes:

[0078] S51. Input the required attribute information to obtain the preferred index among multiple distribution network planning schemes, wherein the calculation formula of the preferred index is:

[0079] Among them, δ is the optimization index, T i is the investment attribute cost of the distribution network structure in a unit model, ε i is the basic weight of the investment attribute cost of the distribution network structure in a unit model, Tsx i is the demand weight of the investment attribute cost of the distribution network structure in a unit model, J i is the level information of the technical attributes of the distribution network structure in a unit model, σ i is the basic weight of the technical attributes of the distribution network structure in a unit model, Jsx i is the demand weight of the technical attributes of the distribution network structure in a unit model, n represents the number of unit models in a single distribution network planning scheme, which is the number of distribution ranges. It should be noted that T i 、Tsx i With J i With Jsx i The larger the value of is, the larger the value of δ is, which means it is more suitable for the staff's needs to build a distribution network;

[0080] S52, ranking according to the preferred index, and taking the distribution network planning scheme corresponding to the first-ranked preferred index as the target planning scheme;

[0081] As described in steps S51 and S52 above, the staff inputs the required attribute information. For example, if the investment cost is the main requirement and the technical attribute is the general requirement, then Tsx i The value is too large, Jsx i The value is too small, and then the optimization index is obtained. The level information of the technical attributes of the distribution network structure in a unit model here is the preset evaluation level information of the power supply capacity and reliability of the distribution network structure. The level information here is a level value, for example, 1-10 levels. The larger the value, the better the power supply capacity and reliability. If there is no demand, Tsx i With Jsx i The values ​​of are all zero, and then the preferred index is calculated according to the preferred index formula, and the distribution network planning schemes are arranged from large to small according to the preferred index, and the distribution network planning scheme corresponding to the first ranked preferred index is taken as the target planning scheme;

[0082] Example 2, please refer to Figure 2 As shown, the adaptive optimization system for distribution network planning described in this embodiment includes:

[0083] An acquisition module is used to acquire the planning scope of the distribution network planning, acquire the power distribution demand information within the planning scope, wherein the power distribution demand information includes multiple power distribution scopes and corresponding load demands, and construct a power distribution model based on the planning scope and the power distribution demand information;

[0084] The planning module is connected to the acquisition module, and is used to respectively determine the power distribution types of multiple power distribution ranges and mark them on the power distribution model, and based on the power distribution model, the multiple power distribution ranges are respectively copied to obtain multiple standby power distribution ranges, and the corresponding relationship between the power distribution range and the planning library is established based on the power distribution type;

[0085] A construction module, connected to the planning module, is used to load one or more distribution network structures in the planning library into corresponding backup power distribution ranges based on the corresponding relationship to obtain one or more unit models;

[0086] A matching module, connected to the building module, is used to match unit models of multiple distribution ranges with each other based on the distribution model to obtain multiple distribution network planning schemes;

[0087] The selection module is connected to the matching module and is used to select the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme.

[0088] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An adaptive optimization method for distribution network planning, characterized in that: The following steps are involved: Obtaining a planning scope of the distribution network planning, obtaining power distribution demand information within the planning scope, wherein the power distribution demand information includes multiple power distribution scopes and corresponding load demands, and constructing a power distribution model based on the planning scope and the power distribution demand information; Determine the power distribution types of multiple power distribution ranges respectively and mark them on the power distribution model, copy the multiple power distribution ranges respectively based on the power distribution model to obtain multiple standby power distribution ranges, and establish a corresponding relationship between the power distribution range and the planning library based on the power distribution type; Based on the corresponding relationship, one or more distribution network structures in the planning library are loaded into the corresponding backup power distribution range to obtain one or more unit models; Based on the power distribution model, multiple distribution range unit models are matched with each other to obtain multiple distribution network planning schemes; The optimal distribution network planning scheme is selected as the target planning scheme from multiple distribution network planning schemes.

2. The adaptive optimization method for distribution network planning according to claim 1, characterized in that: The step of constructing a power distribution model based on the planning scope and power distribution demand information includes: Obtaining a planning scope of the distribution network planning, and obtaining multiple distribution scopes within the planning scope and corresponding load demands as distribution demand information; An electronic map is constructed based on the planning scope, and the power distribution demand information is marked in the electronic map to obtain a power distribution model.

3. The adaptive optimization method for distribution network planning according to claim 1, characterized in that: The step of respectively copying a plurality of power distribution ranges based on the power distribution model to obtain a plurality of standby power distribution ranges, and establishing a corresponding relationship between the power distribution ranges and the planning library based on the power distribution type includes: Determine the power distribution types of multiple power distribution ranges, wherein the power distribution type includes data range information of load demand, and mark the power distribution type on the power distribution model; Multiple power distribution ranges in the corresponding power distribution model are copied to obtain multiple power distribution range models and used as multiple standby power distribution ranges, and information of the multiple standby power distribution ranges is bound to the corresponding power distribution range; Setting a planning library, wherein the planning library includes a power distribution type, a plurality of distribution network structures corresponding to the power distribution type, and attribute information corresponding to the distribution network structure, and marking a grid-connected terminal on the distribution network structure; Based on the power distribution type, a power distribution range and corresponding relationships between multiple backup power distribution ranges and the power distribution types in the planning library are established.

4. The adaptive optimization method for distribution network planning according to claim 3, characterized in that: The step of establishing a corresponding relationship between a power distribution range and a plurality of standby power distribution ranges and power distribution types in a planning library based on the power distribution type comprises: Select a fixed point in each of the multiple power distribution ranges in the power distribution model, and obtain the position of the fixed point in the power distribution range corresponding to the fixed point in the multiple backup power distribution ranges as a follower fixed point; Establish communication relationships between multiple follower fixed points in the backup power distribution range and the fixed points respectively to obtain multiple communication layers, fix and encode the communication layers to obtain communication layer identities; Establish communication relationships between multiple fixed points within the power distribution range; A correspondence between fixed points within multiple power distribution ranges and power distribution types in the planning library is established, and a correspondence between the power distribution range and multiple standby power distribution ranges and the power distribution types in the planning library is obtained.

5. The adaptive optimization method for distribution network planning according to claim 1, characterized in that: The step of loading one or more distribution network structures in the planning library into the corresponding backup power distribution range based on the corresponding relationship to obtain one or more unit models includes: Based on the corresponding relationship, one or more corresponding distribution network structures in the planning database are obtained through a fixed point within the distribution range; One or more distribution network structures are stored in the corresponding communication layer through the communication relationship between the fixed point within the distribution range and the corresponding follower fixed point to obtain one or more unit models.

6. The adaptive optimization method for distribution network planning according to claim 1, characterized in that: The step of matching unit models of multiple distribution ranges to obtain multiple distribution network planning solutions based on the distribution model includes: Freely combine one or more communication layers within multiple backup power distribution ranges to obtain multiple combination schemes; Based on the communication relationship between the fixed points within the multiple distribution ranges, the unit models of multiple backup distribution ranges in a single combination scheme are connected by communication, and the multiple unit models are connected to the grid through the grid-connected terminal to obtain a distribution network planning scheme; Multiple combination schemes result in multiple distribution network planning schemes.

7. The adaptive optimization method for distribution network planning according to claim 1, characterized in that: The step of selecting the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme comprises: Input the required attribute information to obtain the optimal index among multiple distribution network planning schemes; The optimization plans are ranked according to the optimization index, and the distribution network planning plan corresponding to the first-ranked optimization index is taken as the target planning plan.

8. An adaptive optimization system for distribution network planning, used to implement an adaptive optimization method for distribution network planning as claimed in any one of claims 1 to 7, characterized in that: include: An acquisition module is used to acquire the planning scope of the distribution network planning, acquire the power distribution demand information within the planning scope, wherein the power distribution demand information includes multiple power distribution scopes and corresponding load demands, and construct a power distribution model based on the planning scope and the power distribution demand information; The planning module is connected to the acquisition module, and is used to respectively determine the power distribution types of multiple power distribution ranges and mark them on the power distribution model, and based on the power distribution model, the multiple power distribution ranges are respectively copied to obtain multiple standby power distribution ranges, and the corresponding relationship between the power distribution range and the planning library is established based on the power distribution type; A construction module, connected to the planning module, is used to load one or more distribution network structures in the planning library into corresponding backup power distribution ranges based on the corresponding relationship to obtain one or more unit models; A matching module, connected to the building module, is used to match unit models of multiple distribution ranges with each other based on the distribution model to obtain multiple distribution network planning schemes; The selection module is connected to the matching module and is used to select the best distribution network planning scheme from multiple distribution network planning schemes as the target planning scheme.

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