Graphics aided design-based automatic site selection method for electric power well site arrangement

Abstract

The invention relates to the technical field of electric power engineering planning and design, and discloses an electric power well location model automatic site selection method based on graphic aided design, comprising the following steps: step 1, confirming and collecting data such as terrain, landform, geologic structure and the like of a new area, and docking with an underground pipeline management system of a municipal department to obtain various underground pipelines; and collecting power planning related standard and specification data. According to the graph aided design-based automatic site selection method for the electric power well location model, static geographic information data of terrains, landforms, buildings, roads and the like in an electric power well location site selection area and data of municipal pipelines laid around are acquired through a data acquisition module, and the data are uniformly processed; a three-dimensional model of a site selection area is rapidly constructed based on processing of a graphical computer and CAD software, and a site selection module rapidly calculates and screens out power well site candidate sites meeting basic conditions through preset rules and algorithms.

Description

Technical Field

[0001] The invention relates to the technical field of electric power engineering planning and design, and in particular to a method for automatic site selection of electric power well locations based on graphic-assisted design. Background Art

[0002] With the acceleration of urbanization and population growth, the demand for electricity is increasing, and the scale of power infrastructure construction is also expanding rapidly. Whether it is a newly built residential area, industrial park, or urban renovation and upgrading project, a large number of power wells are needed to lay cables. In order to meet this rapidly growing construction demand, the efficiency and accuracy of power well site selection must be improved. As a key node for laying power cables, the rationality of the site selection of power wells directly affects the safety, reliability and construction cost of the power system. The reasonable site selection of power wells is an important link to ensure the safe and stable operation of the power system. In the design of power networks, well location survey and site selection is an important link. Traditional site selection methods may rely on experience or manual calculations, and there are problems of low efficiency and low accuracy, such as: Traditional power well site selection mainly relies on manual field surveys. Workers need to go to the site to evaluate the geographical environment, underground pipeline distribution and other conditions one by one. In large areas where power well planning is required, a lot of manpower, material resources and time are required. In addition, existing technology uses GIS software technology to assist in power facility planning. Since the software can only provide basic geographic information viewing functions, there are still functional shortcomings in power well site selection, and the combination of graphics and automation has not yet been fully realized.

[0003] In response to the above problems, it is urgent to carry out innovative designs based on the original power well site selection methods. Summary of the invention

[0004] The purpose of the present invention is to provide a method for automatic site selection of power well locations based on graphic-assisted design, so as to solve the problem mentioned in the above background technology that traditional power well location selection mainly relies on manual field surveys, and in areas where power well location planning is required over a large area, a large amount of manpower, material resources and time are required. In addition, the existing technology uses GIS software technology to assist in power facility planning. Since the software can only provide basic geographic information viewing functions, the combination of graphics and automation has not yet been fully realized.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for automatic site selection of power well locations based on graphic-assisted design, comprising the following steps: Step 1: Confirm and collect data on the topography, landform, geological structure, etc. of the new area, connect with the underground pipeline management system of the municipal department to obtain various underground pipelines, and collect relevant standards and specification data for power planning; Step 2: Use CAD software to assist in the construction of a preliminary model of the region using the collected regional topographic images and pipeline distribution; Step 3: In the development environment of CAD software, use its built-in modeling tools to build a mathematical model for power well site selection, start the automatic site selection calculation program, set the search range to the entire target area, and the program generates candidate points in the target area according to the set grid division method; Step 4: After the site selection calculation is completed, the CAD software automatically switches to the result display interface, displaying the recommended power well location and its surrounding environment information in the form of a three-dimensional map; Step 5: Planners perform optimization and adjustment operations on the graphical interface. After the adjustment is completed, the final site selection plan is output in the form of a report, providing a detailed design basis for subsequent power well site construction.

[0006] By adopting the above technical solution, based on graphical computer-aided design, a large amount of geographic information, underground pipeline distribution and other data can be quickly imported and integrated.

[0007] Preferably, the step 1 obtains the power well location in a preset area through a data acquisition module, and the data acquisition module standardizes the various types of data obtained to unify the data format and coordinate system.

[0008] By adopting the above technical solution, the data acquisition module standardizes the data, which facilitates the generation of three-dimensional models by CAD software.

[0009] Preferably, the data acquisition module transfers the standardized and unified data into the interface of the CAD software, and the processing module in the CAD software generates a three-dimensional map.

[0010] By adopting the above technical solution, the acquired data is processed by CAD software to generate a three-dimensional map of the corresponding area.

[0011] Preferably, the data acquisition module is connected to multiple data sources to automatically capture key information such as substation location, transmission line distribution, etc. for analysis and planning of the power network.

[0012] By adopting the above technical solution, the data acquisition module provides corresponding data for the data source.

[0013] Preferably, the CAD software is provided with a site selection module, an optimization and verification module, and an output and storage module.

[0014] By adopting the above technical solution, a graphical data consultant is formed through the site selection module, optimization and verification module, and output and storage module in conjunction with CAD software.

[0015] Preferably, the site selection module pre-processes the collected regional data to extract key information such as terrain slope, landform stability, building density, road accessibility, etc.

[0016] By adopting the above technical solution, the site selection module quickly extracts the required data by preprocessing the regional data.

[0017] Preferably, the optimization and verification module is data-connected with the site selection module, and the optimization and verification module further optimizes and verifies the preliminary results of the site selection module to ensure that the final well location plan meets the needs of the power network.

[0018] The above technical solution is adopted to provide a well location solution suitable for the power network.

[0019] Preferably, the recommended power well locations calculated by the site selection module and the optimization and verification module are output in a graphical or tabular form and stored in a database of the output and storage module.

[0020] By adopting the above technical solution, the site selection module cooperates with the optimization and verification module to provide verification operations for the candidate power well locations, so as to better determine the candidate power well locations.

[0021] Preferably, the adjustment data of the optimized changes of the power well location candidate points in the graphical interface of the CAD software is sent to the optimization and verification module for connection.

[0022] By adopting the above technical solution, the optimization and verification modules are added to facilitate further analysis of the optimized positions of the candidate power well locations.

[0023] Preferably, the candidate power well locations of the CAD software are displayed in a graphical manner, and the graphical manner uses a three-dimensional map to display the recommended power well locations and their surrounding environment information.

[0024] The above technical solution is adopted to facilitate quick grasp of the surrounding information of the recommended power well location.

[0025] Compared with the prior art, the invention has the following beneficial effects: the method for automatic site selection of power well locations based on graphic-assisted design: 1. The data acquisition module collects static geographic information data such as terrain, landforms, buildings and roads in the power well site selection area, as well as the municipal pipeline data already laid in the surrounding area. After unified data processing, a three-dimensional model of the site selection area is quickly constructed based on the processing of graphical computers and CAD software. Through pre-set rules and algorithms, the site selection module can quickly calculate and select multiple power well site candidate locations that meet the basic conditions. The entire site selection process has a high degree of automation. From data processing and analysis to the determination of the final location, many steps do not require manual complex calculations and judgments one by one, which greatly shortens the time for preliminary screening; 2. By quickly importing and integrating a large amount of geographic information, underground pipeline distribution and other data into the CAD software, a corresponding regional three-dimensional model is generated, which contains all the geographic information and pipeline data displayed. In a complex urban road network, the most suitable well location can be found through spatial analysis, so that the cable can be laid along the shortest path or the most economical path, reducing the cable length and construction cost, while also reducing the risk of power transmission loss. At the same time, by graphically displaying and analyzing the power grid diagram in the CAD software, scientific decision-making support is provided for the site selection of power wells, helping decision makers choose the best well location. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the process flow of the method for automatically selecting a site for a power well in accordance with the present invention; Figure 2 A schematic diagram of the method for automatically selecting a site for a power well according to the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0028] See also Figure 1-Figure 2 The present invention provides a technical solution: a method for automatically selecting a site for a power well location based on graphic-assisted design, comprising the following steps: Step 1: Confirm and collect data on the topography, landform, geological structure, etc. of the new area, connect with the underground pipeline management system of the municipal department to obtain various underground pipelines, and collect relevant standards and specification data for power planning; Step 1: The power well location is obtained in a preset area through the data acquisition module, and the data acquisition module standardizes the various types of data obtained, unifies the data format and coordinate system, and the standardized and unified data of the data acquisition module is transmitted to the interface of the CAD software. The processing module in the CAD software generates a three-dimensional map. The data acquisition module connects to multiple data sources and automatically captures key information such as the location of the substation and the distribution of the transmission lines for the analysis and planning of the power network; In conjunction with the accompanying drawings Figure 2 As shown, the data acquisition module acquires data from the surrounding geographic information, the direction of roads in the area, and the power grid facilities. All the acquired data information is standardized in the data acquisition module. By signing a data use agreement with a professional geographic information data provider, the topographic data of the target area is acquired from the geographic information database, including information such as altitude, slope, and land use type. High-resolution topographic data of the target area is acquired, and the data is converted into a format recognizable by the graphical CAD software through a data conversion tool. Connect with the underground pipeline management system of the municipal department to obtain detailed data of various pipelines such as underground water supply and drainage pipes, gas pipelines, communication pipelines, etc., including pipeline location, depth, direction, pipe diameter and other information; Collect data on standards and specifications related to power planning, including safety distance requirements between power wells and different types of underground facilities, minimum bending radius for laying power cables, etc., and import them into CAD software to facilitate the generation of 3D models; Step 2: Use CAD software to assist in the construction of a preliminary model of the region using the collected regional topographic images and pipeline distribution; Step 3: In the development environment of CAD software, use its built-in modeling tools to build a mathematical model for power well site selection, start the automatic site selection calculation program, set the search range to the entire target area, and the program generates candidate points in the target area according to the set grid division method; Step 4: After the site selection calculation is completed, the CAD software automatically switches to the result display interface, displaying the recommended power well location and its surrounding environment information in the form of a three-dimensional map; The CAD software is equipped with a site selection module, an optimization and verification module, and an output and storage module. The site selection module pre-processes the collected regional data and extracts key information such as terrain slope, landform stability, building density, and road accessibility. The optimization and verification module is connected to the site selection module data, and the optimization and verification module further optimizes and verifies the preliminary results of the site selection module to ensure that the final well location plan meets the needs of the power network. The optimization and verification module consists of an optimization module and a verification module, which are used to further optimize and adjust the initially obtained recommended power well locations. The preliminary selection results of the recommended power well locations are obtained by the algorithm calculation inside the site selection module. The algorithm will first pre-process the collected data and extract key information, such as terrain slope, landform stability, building density, road accessibility, etc., and conduct a comprehensive analysis of these factors based on preset weights and evaluation criteria. In areas with large terrain slopes, the safety and stability of the well location may need to be considered; in areas with dense buildings, it is necessary to weigh the impact of the well location construction on the surrounding environment. The algorithm will also combine the power load distribution of the power network, the direction of the power lines and other planning and needs to ensure that the selected well location can meet the long-term operation needs of the power network. Through comprehensive analysis and calculation, the algorithm will eventually output one or more optimal well location recommendations; The algorithm calculation includes: land acquisition cost, construction cost, material transportation cost, risk of safe distance from underground pipelines, geological disaster risk, cable laying path length and cable bending radius impact; Land acquisition cost: Based on the land price data of different areas in the target area, a land cost function related to the location of the power well is established. The land price function is set as ,in is the plane coordinate of the power well location, and the land acquisition cost calculation formula is:

[0029] here The area occupied by the power well; Construction cost: Consider the impact of terrain factors on construction difficulty. For example, the greater the slope θ, the higher the construction cost. , then the construction cost calculation formula is:

[0030] in An index representing various factors related to construction difficulty, such as excavation depth and soil type; Material transportation cost: Based on the distance from the power well to the material supply point or warehouse and unit transportation cost , material transportation cost calculation formula:

[0031] Comprehensive construction cost objective function:

[0032] Safety distance risk from underground pipelines: For different types of underground pipelines such as water supply and drainage pipes, gas pipelines, etc., the minimum safety distance requirement from the power well is , the actual distance is , define the risk function as:

[0033] The total risk of safe distance from underground pipelines is:

[0034] Geological hazard risk: Considering the geological conditions of the target area, such as the seismic activity zone and landslide-prone areas, a geological hazard risk coefficient is set. , then the geological disaster risk is:

[0035] Comprehensive operation safety risk objective function:

[0036] Cable laying path length: Assume that the connection path between power wells and power sources such as substations is , according to the resistance characteristics of the cable, the longer the path, the greater the power transmission loss, and the path length risk function is defined as:

[0037] in Lay the path length for the maximum allowed cable length; Cable bending radius influence: Ensure the bending radius of the cable during laying Meet the minimum bending radius requirements , define the bending radius risk function as:

[0038] Comprehensive power transmission efficiency objective function:

[0039] Taking the above three aspects into consideration, the overall objective function is constructed

[0040] in , , is the weight coefficient, and its value is determined according to the focus and requirements of power planning to balance the relationship between construction cost, operation safety and power transmission efficiency; During the model calculation, element conditions are established synchronously, including geographical terrain constraints, underground pipeline safety spacing constraints, and power cable laying technical requirements constraints; Geographical constraints: Slope constraint: Assume that the maximum slope allowed for the construction of a power well is ,but ,in is the terrain slope at the power well location; Altitude constraint: The altitude range of the power well location is specified as , Right now ,in is the elevation of the power well location; Land use type constraint: exclude some land use types such as protected areas and water areas that are not suitable for building power wells, and set the land use type function ,when When it indicates that the type is not suitable for construction, the location does not meet the site selection conditions; Underground pipeline safety spacing constraints: For each underground pipeline type , as mentioned above, must satisfy , ensure that there is enough safe distance between the power well and the underground pipeline to avoid mutual interference and safety accidents; Technical requirements and constraints for power cable laying: Cable bend radius constraint: As defined above, , ensuring that the cable will not be damaged due to excessive bending during the laying process; Cable tension constraint: According to the material and specifications of the cable, set the maximum allowable tension of the cable during laying ,In the site selection model, the layout of the power well location should be considered so that the tension of the cable during operation does not exceed this value; Through the above-mentioned site selection model algorithm, in a graphical computer-aided design environment, relevant algorithms are used to conduct comprehensive evaluation and automatic site selection of power well locations in the target area to meet the various requirements of power engineering construction. After the preliminary location and list data are output, the particle swarm optimization algorithm is used; Each power well location candidate is considered as a particle, and each particle has a position vector and the velocity vector ,A group of particles are randomly initialized in the target area, representing different candidate locations of power wells, and the velocity vectors of the particles are initialized at the same time, and the velocity magnitude and direction are also randomly set within a certain range; Each particle calculates the objective function value based on its own position and compares it with the objective function value of its own historical optimal position. If the current value is better, the individual optimal position is updated. At the same time, the particle position with the best objective function value among all particles is determined as the global optimal position ; The speed and position of the particles are updated according to the individual optimal position and the global optimal position. Through continuous iterative updates, the particles gradually gather towards the global optimal position, thereby obtaining the optimized power well location selection plan. The optimized plan is sent to the optimization and verification module for cost-effectiveness, safety and reliability, and power transmission performance evaluation. The cost-effectiveness index is obtained by calculating the total cost and power transmission benefit of the optimized power well location plan. The number of minimum safety distance violations between the power well location and various surrounding hazardous sources in the optimization plan, as well as the safety and reliability scores of the power well location under different disaster scenarios are counted to obtain the safety and reliability index evaluation. Finally, the power load balance under the optimized power well location layout is analyzed, the power load imbalance coefficient and the power transmission capacity utilization rate are calculated, and the power transmission performance index is comprehensively evaluated. According to the evaluation index results, if some indicators do not meet the expected requirements, the parameters or algorithms of the optimization module are adjusted; Step 5: The planner performs optimization and adjustment operations on the graphical interface. After the adjustment is completed, the final site selection plan is output in the form of a report, providing a detailed design basis for the subsequent power well construction; The adjusted data of the power well location candidate optimization changes in the graphical interface of the CAD software are sent to the optimization and verification module for connection. The power well location candidate display of the CAD software is displayed in a graphical manner, and the graphical manner uses a three-dimensional map to display the power well location recommended point and its surrounding environment information. The power well location recommended points calculated by the site selection module and the optimization and verification module are output in a graphical or tabular form and stored in the database of the output and storage module; After the site selection calculation is completed, the CAD software automatically switches to the result display interface, showing the recommended power well location and its surrounding environment information in the form of a three-dimensional map. The recommended points are marked with red highlights, underground pipelines are represented by lines of different colors, and the terrain is displayed with contour lines and color filling; In the optimization phase, the optimization and verification module will evaluate the cost, benefit and risk of the site selection plan. By comparing the differences in investment cost, power transmission efficiency, environmental impact and other aspects of different site selection plans, combined with the actual needs of the power network and future development plans, the module will select the optimization plan that meets the actual situation. The verification phase involves field investigation and simulation testing of the optimized site selection plan to ensure its feasibility and reliability. The optimization and verification module uses computer-aided software and simulation models to conduct three-dimensional simulation and risk assessment of the site selection plan. The optimization and verification module fine-tunes the site selection results according to the actual needs of power planners to adapt to different terrains, landforms and power network layouts; Planners make adjustments on the graphical interface. When the mouse hovers over a recommended point, detailed information about the point is displayed, including the value of the comprehensive evaluation index, the distance to surrounding important facilities, etc. If adjustment is required, click the point and drag it to a new location. The system will immediately recalculate the comprehensive evaluation index of the point and update the relevant data and graphic display in the result display interface. After the adjustment is completed, the final site selection plan will be output in the form of a report. The report content includes information such as the power well location coordinates, surrounding environment analysis, and site selection basis, providing a detailed design basis for the subsequent power well location construction. The site selection results are output in graphical or tabular form and stored in the output and storage module database to ensure that these results can be stored safely and effectively for subsequent design and construction work; In terms of graphical output, the output and storage module cooperates with CAD software to generate various forms of maps and charts, such as heat maps, regional division maps, site selection point distribution maps, etc., which are convenient for quickly locating the specific location of the site selection results, and can also intuitively display the advantages and disadvantages of the site selection results through visual elements such as color depth and area size.

[0041] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A method for automatic site selection of power wells based on graphic-assisted design, characterized in that: The following steps are involved: Step 1: Confirm and collect data on the topography, landform, geological structure, etc. of the new area, connect with the underground pipeline management system of the municipal department to obtain various underground pipelines, and collect relevant standards and specification data for power planning; Step 2: Use CAD software to assist in the construction of a preliminary model of the region using the collected regional topographic images and pipeline distribution; Step 3: In the development environment of CAD software, use its built-in modeling tools to build a mathematical model for power well site selection, start the automatic site selection calculation program, set the search range to the entire target area, and the program generates candidate points in the target area according to the set grid division method; Step 4: After the site selection calculation is completed, the CAD software automatically switches to the result display interface, displaying the recommended power well location and its surrounding environment information in the form of a three-dimensional map; Step 5: Planners perform optimization and adjustment operations on the graphical interface. After the adjustment is completed, the final site selection plan is output in the form of a report, providing a detailed design basis for subsequent power well site construction.

2. The method for automatic site selection of power well locations based on graphic-aided design according to claim 1 is characterized by: The step 1 obtains the power well location in a preset area through the data acquisition module, and the data acquisition module standardizes the various types of data obtained to unify the data format and coordinate system.

3. The method for automatic site selection of power well locations based on graphics-aided design according to claim 2 is characterized by: The data acquisition module transfers the standardized and unified data into the interface of the CAD software, and the processing module in the CAD software generates a three-dimensional map.

4. The method for automatic site selection of power well locations based on graphic-aided design according to claim 2 is characterized by: The data acquisition module connects to multiple data sources and automatically captures key information such as substation location and transmission line distribution for analysis and planning of the power network.

5. The method for automatic site selection of power well locations based on graphics-aided design according to claim 1 is characterized by: The CAD software is provided with a site selection module, an optimization and verification module, and an output and storage module.

6. The method for automatic site selection of power well locations based on graphic-aided design according to claim 5 is characterized by: The site selection module pre-processes the collected regional data to extract key information such as terrain slope, landform stability, building density, road accessibility, etc.

7. The method for automatic site selection of power well locations based on graphics-aided design according to claim 5 is characterized by: The optimization and verification module is connected to the data of the site selection module, and the optimization and verification module further optimizes and verifies the preliminary results of the site selection module to ensure that the final well location plan meets the needs of the power network.

8. The method for automatic site selection of power well locations based on graphic-aided design according to claim 5 is characterized by: The recommended power well locations calculated by the site selection module and the optimization and verification module are output in a graphical or tabular form and stored in a database of the output and storage module.

9. The method for automatic site selection of power well locations based on graphics-aided design according to claim 1 is characterized by: The adjustment data of the optimized change of the power well location candidate points in the graphical interface of the CAD software is sent to the optimization and verification module for connection.

10. The method for automatic site selection of power well locations based on graphics-aided design according to claim 1, characterized in that: The CAD software displays candidate power well locations in a graphical manner, and the graphical manner uses a three-dimensional map to display the recommended power well location and its surrounding environment information.

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