A method and system for constructing a multi-zone production analog grid

Abstract

The present application relates to a kind of multi-region production simulation power grid construction method and system, including by first establishing bottom layer branch power grid, the construction of upper layer power grid is by introducing lower power grid, by the way of constantly to each level power grid aggregation, cumulative and iteration, complex power grid is constructed.Multi-region large-scale power grid is realized by hierarchical construction branch management, so that multi-user collaborative complex power grid creation becomes possible, also makes each level power grid more easily expand and revise, greatly reduces the complexity of constructing global power grid, effectively reduces the workload of creating multi-region complex power grid.

Description

Technical Field

[0001] This invention relates to the field of new energy power generation technology, and to a method and system for constructing a complex multi-regional power grid under power production simulation. Background Technology

[0002] Global energy development is currently facing severe challenges such as resource scarcity, environmental pollution, and greenhouse gas emission reduction. The energy development model based on traditional fossil fuels is unsustainable. Promoting a clean energy-centric energy system, particularly a major transformation of the power system, will become a major trend in global energy development. The Global Energy Interconnection is a robust and intelligent grid with ultra-high-voltage power grids as its backbone (channels), primarily focused on transmitting clean energy, and characterized by global interconnection and ubiquity.

[0003] The Global Energy Interconnection covers a wide area and has a huge power grid. There is a lot of basic data on new energy resources, power sources, power grids, and loads. It is very difficult for managers, investors, and technical researchers to directly link all the basic data and power flow.

[0004] New energy production simulation is an important tool for studying power balance in the generation, transmission, distribution, and consumption processes of a power system, and is widely used in power system planning, operation, and the electricity market. Under the trend of the global energy internet, new energy production simulation software systems must first consider the complex multi-regional intercontinental power grid structure. The existing graphical power grid modeling function allows users to complete power grid modeling through simple drag-and-drop. However, existing power system simulation software systems are mainly developed and optimized for regional power grids. Intercontinental power grids are extremely large, and the existing graphical power grid modeling function still has a huge workload when dealing with complex multi-regional and multi-level power grids. Furthermore, the large workload, difficulty in expansion and management, and challenges in navigating the massive intercontinental grid structure of the global energy internet necessitate a more convenient and intelligent method to assist users in constructing large-scale grid structures and addressing these issues. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a method for constructing a complex multi-regional power grid under power production simulation, comprising the following steps:

[0006] Step 1: Create a regional tie-line index table in the database to provide data basis for automatic association of various regions when constructing the power grid. The table stores the attribute information of each region and tie-line, and periodically crawls data to update the regional and tie-line attribute information on relevant websites.

[0007] Step 2: Create branch power grids for each region, configure the branch power grid region and branch power grid data, and set the name and capacity of the external transmission line for that region. Branch power grid data can be imported from other systems and can be created simultaneously by multiple users.

[0008] Step 3: Determine whether it is necessary to add more branch grids. If yes, go to Step 2 to create branch grids; otherwise, proceed to Step 4.

[0009] Step 4: Create the upper-level power grid of the branch power grid, set the upper-level power grid area, and based on the branch power grid in the area, perform fuzzy search and matching on the starting position of the external transmission tie line between the branch power grids according to the data in the area tie line index table, and the system automatically establishes the tie line relationship between the areas.

[0010] Step 5: Determine if all parent grids have been created. If not, proceed to Step 4 to continue creating parent grids; otherwise, proceed to Step 6.

[0011] Step 6: The power grid at all levels expands, adjusts and organizes the power grid branches, and the system assists users in establishing inter-regional relationships. The expanded, adjusted and organized power grid data structure is updated in the entire power grid structure to realize the construction of a multi-regional production simulation power grid.

[0012] Step 7: Perform data matching and location matching between the power grid data structure and the power grid geographic information system. After data and location matching, map the power grid structure onto the thematic layer of the power grid geographic information system to visualize the power production simulation power grid.

[0013] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0014] First, the multi-regional construction method for power grid models proposed in this invention reduces the complexity of modeling large-scale power grid structures and simplifies the power grid modeling workflow. Through continuous aggregation, accumulation, and iterative construction of regional power grids, it enables multi-regional and multi-user collaborative creation of complex power grids, and also makes it easier to expand and revise power grids at all levels. The relationships between power grids at all levels are automatically completed by the system, improving the efficiency of power grid modeling and reducing the modeling workload.

[0015] Secondly, the multi-level, multi-branch construction method for the power grid model proposed in this invention has the characteristics of easy expansion of branches and sub-branches, and easy search and traversal of data at each node. By expanding the number of storage nodes for each node, it enables faster location and access of continuous data, effectively reducing search time and improving the spatial locality of storage, thereby reducing I / O operations.

[0016] Finally, by combining the power grid geographic information system, this invention displays the simulated power grid structure data in an intuitive graphic format, which greatly reduces the workload of planners, improves design efficiency, and achieves simultaneous improvement in quality and efficiency. Attached Figure Description

[0017] Figure 1Flowchart of the method for constructing a multi-regional production simulation power grid according to the present invention. Detailed Implementation

[0018] In the following description, numerous specific details are set forth for illustrative purposes and to enable a thorough understanding of embodiments of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without these specific details. The following detailed description includes reference to the accompanying drawings, which form part of the detailed description. The drawings illustrate examples according to exemplary embodiments. These exemplary embodiments (which are also referred to herein as “examples”) are described in sufficient detail to enable those skilled in the art to practice the subject matter. Embodiments may be combined, other embodiments may be utilized, or structural and logical changes may be made without departing from the scope of the claims. Therefore, the following detailed description should not be construed as limiting, and the scope is determined by the appended claims and their equivalents.

[0019] To achieve the aforementioned beneficial effects, such as Figure 1 As shown, the method for constructing a multi-regional production simulation power grid according to the present invention adopts the following technical solution:

[0020] Step 1: Create a regional tie-line index table in the database to provide data basis for automatic association of various regions when constructing the power grid. The table stores the attribute information of each region and tie-line, and periodically crawls data to update the regional and tie-line attribute information on relevant websites.

[0021] Preferably, the attribute information of the region includes the region's name, abbreviation, former name, and search keywords, and the attribute information of the connecting line includes the connecting line's name, abbreviation, capacity, and start and end regions.

[0022] Step 2: Create branch power grids for each region, configure the branch power grid region and branch power grid data, and set the name and capacity of the external transmission line for that region. Branch power grid data can be imported from other systems and can be created simultaneously by multiple users.

[0023] Step 3: Determine whether it is necessary to add more branch grids. If yes, go to Step 2 to create branch grids; otherwise, proceed to Step 4.

[0024] Step 4: Create the upper-level power grid of the branch power grid, set the upper-level power grid area, and based on the branch power grid in the area, perform fuzzy search and matching on the starting position of the external transmission tie line between the branch power grids according to the data in the area tie line index table, and the system automatically establishes the tie line relationship between the areas.

[0025] Preferably, step 4 specifically includes:

[0026] Step 4-1: First, based on the attribute information of the tie line entered by the user when creating the branch power grid, perform a fuzzy search and match in the regional tie line index table. If a unique matching data is found, directly associate the tie lines between regions.

[0027] Step 4-2: If multiple regions meet the search criteria during the fuzzy search matching process, the search results are optimized and sorted, and the user is prompted to select and match the search results.

[0028] Step 4-3: If no matching search results are found during the fuzzy search matching process, the existing regions are optimized and sorted according to the search results, and the user is prompted to manually associate the connecting lines between regions.

[0029] Step 5: Determine if all parent grids have been created. If not, proceed to Step 4 to continue creating parent grids; otherwise, proceed to Step 6.

[0030] Preferably, the hierarchy and branches of the power grid can be unrestricted, establishing a complex multi-regional power grid. The final large-scale power grid is constructed hierarchically from multiple branch regions, and the relationships between the power grids are automatically associated by the system.

[0031] Step 6: The power grid at all levels expands, adjusts and organizes the power grid branches, and the system assists users in establishing inter-regional relationships. The expanded, adjusted and organized power grid data structure is updated in the entire power grid structure to realize the construction of a multi-regional production simulation power grid.

[0032] Step 7: Perform data matching and location matching between the power grid data structure and the power grid geographic information system. After data and location matching, map the power grid structure onto the thematic layer of the power grid geographic information system to visualize the power production simulation power grid.

[0033] Preferably, the thematic layers of the power grid geographic information system are represented by points, lines, and polygons. When visualizing the simulated power grid for power production, network topology coloring is used, with power grids at the same level colored the same, thus visualizing the topological structure of the power grid.

[0034] Because the management of power grid systems and their facilities involves not only power supply facility equipment attribute data, power grid operation data, and user information, but also spatial data such as the geographical location of power supply facilities, and further involves the network structure and network topology of the power grid system, the information belongs to equipment space, electrophysical space, geographic space, and topological space. Conventional information management systems based on relational data description are difficult to reflect the superposition, fusion, and mapping relationships of this multi-spatial information. Therefore, the theories, methods, and technologies of Geographic Information Systems (GIS), which have both conventional information management functions and special functions of describing, storing, and analyzing geographic spatial information, are introduced into the information management of power grid systems to visualize the topology of the power grid.

[0035] A power grid geographic information system (GIS) is a comprehensive application of computer graphics, database, network, and geographic information system (GIS) technologies. Compared to conventional distribution MIS systems and distribution network automation systems, its most significant feature is its ability to describe, store, and analyze geospatial information unique to GIS, enabling the mapping and unified management of the spatial geographic locations of simulated power grid facilities with distribution network equipment and operational data. Furthermore, by utilizing the geographical network of power grid facilities formed by the GIS and the further developed geometric network, the spatial relationships and connectivity between facilities can be described, laying the foundation for various distribution-related analyses based on the power grid topology.

[0036] In addition, the present invention also provides a system for constructing a multi-regional production simulated power grid, comprising:

[0037] Index Table Module: Used to create regional tie line index tables in the database, providing data basis for automatic association of various regions when building the power grid. The table stores the attribute information of each region and tie line, and periodically crawls data to update the regional and tie line attribute information on relevant websites.

[0038] Preferably, the attribute information of the region includes the region's name, abbreviation, former name, and search keywords; the attribute information of the tie line includes the tie line's name, abbreviation, capacity, and start and end regions.

[0039] Branch Grid Module: Used to create branch grids for each region, configure branch grid regions and branch grid data, and set the name and capacity of the external transmission lines for that region; the branch grid data can be imported from other systems and can be created simultaneously by multiple people;

[0040] First judgment module: Used to determine whether it is necessary to add more branch grids. If so, the branch grid module is executed to create the branch grid; otherwise, the parent grid module is executed.

[0041] Upper-level power grid module: Used to create the upper-level power grid of the branch power grid, set the upper-level power grid area, and based on the branch power grid of the area, perform fuzzy search and matching on the starting position of the external transmission tie line between the branch power grids according to the data in the area tie line index table, and the system automatically establishes the tie line relationship between the areas;

[0042] The second judgment module is used to determine whether all parent grids have been created. If not, it proceeds to the parent grid module to continue creating parent grids; otherwise, it executes the relationship module.

[0043] Relationship module: Used for expanding, adjusting and organizing power grid branches at all levels of the power grid, and the system assists users in establishing inter-regional relationships. The expanded, adjusted and organized power grid data structure is updated in the entire power grid structure to realize the construction of multi-regional production simulation power grid;

[0044] Display module: Used to perform data matching and location matching between the power grid data structure and the power grid geographic information system. After data and location matching, the power grid structure is mapped to the thematic layer of the power grid geographic information system to visualize the power production simulation power grid.

[0045] Preferably, the upstream power grid module specifically includes:

[0046] Matching module: Used to perform fuzzy search matching in the regional tie line index table based on the attribute information of the tie line entered by the user when creating the branch power grid. If a unique matching data is found, the tie line between regions is directly associated.

[0047] The sorting module is used to optimize and sort the search results if multiple regions meet the search criteria during the fuzzy search matching process, and prompt the user to select and match the search results.

[0048] Manual module: If no matching results are found during the fuzzy search matching process, the existing regions will be optimized and sorted according to the search results, and the user will be prompted to manually establish connection lines between regions.

[0049] Preferably, the constructed power grid is a multi-regional complex power grid.

[0050] Preferably, the thematic layers of the power grid geographic information system are represented by points, lines, and surfaces; when the display module visualizes the power production simulation power grid, it uses network topology coloring, with power grids at the same level colored in the same color, thereby visualizing the topological structure of the power grid.

[0051] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0052] First, the multi-regional construction method for power grid models proposed in this invention reduces the complexity of modeling large-scale power grid structures and simplifies the power grid modeling workflow. Through continuous aggregation, accumulation, and iterative construction of regional power grids, it enables multi-regional and multi-user collaborative creation of complex power grids, and also makes it easier to expand and revise power grids at all levels. The relationships between power grids at all levels are automatically completed by the system, improving the efficiency of power grid modeling and reducing the modeling workload.

[0053] Secondly, the multi-level, multi-branch construction method for the power grid model proposed in this invention has the characteristics of easy expansion of branches and sub-branches, and easy search and traversal of data at each node. By expanding the number of storage nodes for each node, it enables faster location and access of continuous data, effectively reducing search time and improving the spatial locality of storage, thereby reducing I / O operations.

[0054] Finally, by combining the power grid geographic information system, this invention displays the simulated power grid structure data in an intuitive graphic format, which greatly reduces the workload of planners, improves design efficiency, and achieves simultaneous improvement in quality and efficiency.

[0055] While embodiments of the invention have been described with reference to specific exemplary models, it will be apparent that various modifications and changes can be made to these embodiments without departing from the broader spirit and scope of the invention. Therefore, this specification and the accompanying drawings should be considered illustrative rather than restrictive.

[0056] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application 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.

[0057] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. 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... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0058] 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 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0059] 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.

[0060] 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 method for constructing a multi-regional production simulation power grid, characterized in that, The method includes: Step 1: Create a regional tie-line index table in the database to provide data basis for automatic association of various regions when constructing the power grid. The table stores the attribute information of each region and tie-line, and periodically crawls data to update the regional and tie-line attribute information on relevant websites. Step 2: Create branch power grids for each region, configure the branch power grid region and branch power grid data, and set the name and capacity of the external transmission line for that region; the branch power grid data is imported from other systems or created synchronously by multiple people; Step 3: Determine whether it is necessary to add more branch grids. If yes, go to Step 2 to create branch grids; otherwise, proceed to Step 4. Step 4: Create the upper-level power grid of the branch power grid, set the upper-level power grid area, and based on the branch power grid in the area, perform fuzzy search and matching on the starting position of the external transmission tie line between the branch power grids according to the data in the area tie line index table, and the system automatically establishes the tie line relationship between the areas. Step 5: Determine if all parent grids have been created. If not, proceed to Step 4 to continue creating parent grids; otherwise, proceed to Step 6. Step 6: The power grid at all levels expands, adjusts and organizes the power grid branches, and the system assists users in establishing inter-regional relationships. The expanded, adjusted and organized power grid data structure is updated in the entire power grid structure to realize the construction of a multi-regional production simulation power grid. Step 7: Perform data matching and location matching between the power grid data structure and the power grid geographic information system. After data and location matching, map the power grid structure onto the thematic layer of the power grid geographic information system to visualize the power production simulation power grid. Step 4 specifically includes: Step 4-1: Based on the attribute information of the tie line entered by the user when creating the branch power grid, perform a fuzzy search and match in the regional tie line index table. If a unique matching data is found, directly associate the tie lines between regions. Step 4-2: If multiple regions meet the search criteria during the fuzzy search matching process, the search results are optimized and sorted, and the user is prompted to select and match the search results. Step 4-3: If no matching search results are found during the fuzzy search matching process, the existing regions are optimized and sorted according to the search results, and the user is prompted to manually associate the connecting lines between regions.

2. The method as described in claim 1, characterized in that, Step 1 includes: The attribute information of the region includes the region's name, abbreviation, former name, and search keywords; the attribute information of the tie line includes the tie line's name, abbreviation, capacity, and start and end regions.

3. The method as described in claim 1, characterized in that, The constructed power grid is a complex multi-regional power grid.

4. The method as described in claim 1, characterized in that, The thematic layers of the power grid geographic information system are represented by points, lines, and surfaces. When visualizing the power production simulation power grid, network topology coloring is used, with the same color used for power grids at the same level, thus visualizing the topological structure of the power grid.

5. A system for constructing a multi-regional production simulated power grid, characterized in that, The system includes: Index Table Module: Used to create regional tie line index tables in the database, providing data basis for automatic association of various regions when building the power grid. The table stores the attribute information of each region and tie line, and periodically crawls data to update the regional and tie line attribute information on relevant websites. Branch Grid Module: Used to create branch grids for each region, configure branch grid regions and branch grid data, and set the name and capacity of the external transmission lines for that region; the branch grid data can be imported from other systems or created synchronously by multiple people; First judgment module: Used to determine whether it is necessary to add more branch grids. If so, the branch grid module is executed to create the branch grid; otherwise, the parent grid module is executed. Upper-level power grid module: Used to create the upper-level power grid of the branch power grid, set the upper-level power grid area, and based on the branch power grid of the area, perform fuzzy search and matching on the starting position of the external transmission tie line between the branch power grids according to the data in the area tie line index table, and the system automatically establishes the tie line relationship between the areas; The second judgment module is used to determine whether all parent grids have been created. If not, it proceeds to the parent grid module to continue creating parent grids; otherwise, it executes the relationship module. Relationship module: Used for expanding, adjusting and organizing power grid branches at all levels of the power grid, and the system assists users in establishing inter-regional relationships. The expanded, adjusted and organized power grid data structure is updated in the entire power grid structure to realize the construction of multi-regional production simulation power grid; Display module: Used to perform data matching and location matching between the power grid data structure and the power grid geographic information system. After data and location matching, the power grid structure is mapped to the thematic layer of the power grid geographic information system to visualize the power production simulation power grid. The upstream power grid module specifically includes: Matching module: Used to perform fuzzy search matching in the regional tie line index table based on the attribute information of the tie line entered by the user when creating the branch power grid. If a unique matching data is found, the tie line between regions is directly associated. The sorting module is used to optimize and sort the search results if multiple regions meet the search criteria during the fuzzy search matching process, and prompt the user to select and match the search results. Manual module: If no matching results are found during the fuzzy search matching process, the existing regions will be optimized and sorted according to the search results, and the user will be prompted to manually establish connection lines between regions.

6. The system as described in claim 5, characterized in that, The attribute information of the region includes the region's name, abbreviation, former name, and search keywords; the attribute information of the tie line includes the tie line's name, abbreviation, capacity, and start and end regions.

7. The system as described in claim 5, characterized in that, The constructed power grid is a complex multi-regional power grid.

8. The system of claim 5, wherein, The thematic layers of the power grid geographic information system are represented by points, lines, and surfaces; when the display module visualizes the power production simulation power grid, it uses network topology coloring, with power grids at the same level colored in the same color, thus visualizing the topological structure of the power grid.

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