Power supply and distribution load calculation method based on information model visual interaction

Abstract

The invention relates to the field of engineering project electrical calculation, and discloses a power supply and distribution load calculation method based on information model visual interaction, which is based on three-dimensional design software Revit design, applies a BIM model, and completes distribution of power utilization point locations and filling of data parameters in the BIM model according to the positions of the power utilization points; creating and arranging a substation; electrical loads are automatically distributed, and a primary version topological relation graph is created; carrying out manual load distribution adjustment on the basis of the automatic distribution; and visualizing the topological relation graph. The problems of missed calculation, low calculation efficiency, poor design interaction effect and the like are solved. All data used in the electrical load calculation process are unique and can be modified in a linkage manner; the visual interaction mode is simple and clear, and the operation efficiency is improved; when design modification and adjustment exist, the load calculation result is updated in real time and can be checked in real time; a solution for performing electrical load calculation by using three-dimensional design software is provided, and load calculation can be fused into the whole design process.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical calculation of engineering projects, and in particular to a method for calculating power supply and distribution load based on visualized interaction of information models. Background Art

[0002] Electrical load calculation plays a vital role in the design, planning and operation of power systems. It involves the evaluation and analysis of the loads in the power system to determine the power capacity and power required by the system. This process is crucial for the proper selection of power equipment such as generators, transformers, cables, etc., to ensure that the system can meet the load requirements and avoid overload or undercapacity.

[0003] The existing methods and tools for calculating electrical loads have obvious shortcomings.

[0004] If an EXCEL table is used, there will be a lot of data sorting work, and it is easy to miss or repeat calculations during the process, resulting in incorrect results;

[0005] The use of EXCEL tables does not integrate load calculation well into the design process, but becomes a relatively independent link;

[0006] When the design process is modified or adjusted, the load calculation results need to be re-entered and cannot be automatically linked and adjusted;

[0007] The efficiency in load distribution and adjustment is low, and the design interaction effect is poor.

[0008] If a plug-in such as that of Tengen Electric is used, it can only be applied to traditional two-dimensional design and is not suitable for three-dimensional software; it is inefficient in load distribution and adjustment, and has poor design interaction effects. Summary of the invention

[0009] To this end, the present invention provides a power supply and distribution load calculation method based on information model visual interaction, which is used to solve the problems of missed calculation, low calculation efficiency, poor design interaction effect, etc.

[0010] In order to achieve the above object, the present invention provides the following technical solutions:

[0011] A power supply and distribution load calculation method based on information model visual interaction is designed based on the three-dimensional design software Revit, including applying a BIM model, completing the layout of power consumption points in the BIM model according to the location of the power consumption points, and filling in data parameters; creating and arranging substations; automatically allocating power loads and creating a preliminary topological relationship diagram; manually adjusting load distribution based on the automatic allocation; and visualizing the topological relationship diagram.

[0012] It is further configured as follows: the visualization window includes an electrical equipment library, a function menu area, a property panel, an area switching option, a dual power supply equipment processing area, a judgment option and a table generation option.

[0013] It is further configured as follows: the electrical equipment library is provided with a process set, a common set, a custom set, a distribution cabinet set and other items; the process set includes electrical equipment proposed by painting and process professionals; the common set includes electrical equipment proposed by common professionals; the custom set includes electrical equipment whose position cannot be determined in the BIM model; the distribution cabinet set includes an AP set, an AI set and an AT set, which are automatically classified according to the keywords of the distribution cabinet number; the other items include other electrical equipment participating in the load calculation.

[0014] It is further configured as follows: the function menu includes options for increasing or decreasing transformers, equipment arrangement options, positioning options and refreshing project data options, wherein the option for increasing or decreasing transformers can be based on substations, and the number of transformers can be increased or decreased within the substation area; the equipment arrangement option can be used to quickly arrange the equipment in an orderly manner; the positioning option can be used to achieve the associated positioning of power-consuming equipment; the option for refreshing project data can automatically update and adjust after the power-consuming equipment is changed.

[0015] It is further configured as follows: the attribute panel includes substation attributes, transformer attributes and electrical equipment attributes, and data can be modified; the area switching option can display and switch all substations and generator rooms.

[0016] It is further configured as follows: the dual power supply equipment processing area includes main power parameters and backup power parameters.

[0017] It is further configured as follows: the judgment option can be checked to determine whether the transformer or generator participates in the load calculation.

[0018] It is further configured that: the table generation option can generate a load calculation table during the load calculation process, and the load calculation table can be presented as a calculation result.

[0019] It is further configured that: the automatic distribution of the power load can be performed by recording the coordinates of each power-consuming device in the background, calculating the distance with the coordinates of each substation respectively, and obtaining the distance to each substation.

[0020] It is further configured as follows: the visual topology diagram reads the initial version of the load distribution result, implements subsequent load calculation steps based on this, maps all the electrical equipment in the project, and modifies all data in a linked manner, and can perform load calculation through the interactive methods of "drag and drop" and "transfer".

[0021] Compared with the prior art, the beneficial technical effects of the present invention are:

[0022] The data used in all electrical load calculation processes in the present invention are unique and can be modified in a linked manner; the visual interaction method is simple and clear, which improves operational efficiency; when there are design modifications and adjustments, the load calculation results are updated and available for checking in real time; a solution for electrical load calculation using three-dimensional design software is provided, and load calculation is integrated into the entire design process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the process of the present invention;

[0024] Figure 2 Fill in the diagram for the parameters of the present invention;

[0025] Figure 3 It is a diagram of the substation layout options of the present invention;

[0026] Figure 4 is the automatic load distribution diagram of the present invention;

[0027] Figure 5 It is a load distribution preview diagram of the present invention;

[0028] Figure 6 It is a topological relationship interface diagram (visual interface) of the present invention;

[0029] Figure 7 It is the property panel diagram of the present invention;

[0030] Figure 8 It is a dual power supply option diagram of the present invention;

[0031] Fig. 9 It is the judgment option diagram of the present invention;

[0032] Fig.10 It is a table diagram for generating load calculation of the present invention. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0034] A method for calculating power supply and distribution load based on information model visualization interaction. This method calculates electrical load based on the coefficient method and follows the principle of "first divide the substation, then divide the transformer, with automatic allocation as the main method and manual allocation as the auxiliary method". The implementation process is as follows: Figure 1 As shown, the steps include:

[0035] Apply the BIM model, complete the layout of the power consumption points in the BIM model according to the locations of the power consumption points, and fill in the data parameters;

[0036] Create and lay out substations;

[0037] Automatically distribute power loads and create a preliminary topology diagram;

[0038] Performing manual load distribution adjustment based on the automatic distribution;

[0039] Visualize the topology diagram.

[0040] Specifically, Figure 2 As shown, according to the electricity consumption data provided by the process profession and other public professions, and according to the location of the electricity consumption points, the layout of the electricity consumption points is completed in the BIM model, and key parameters are filled in, including the name and power of the electricity consumption point. Notes can be filled in for special equipment requirements. These are preparations that must be completed before performing load calculations.

[0041] Specifically, Figure 3 As shown, according to the substation location determined by the scheme design, a substation is created at the specified location. The layout can be completed using a plug-in. The user is required to enter the name of the substation to distinguish it. The substation family uses two-dimensional symbols, which will not affect the layout of the overall model. The coordinate information of the substation location is recorded in the background, and the coordinate value is used to calculate the distance to the electrical equipment later.

[0042] Specifically, Figure 4 As shown, the plug-in program automatically distributes the power load in the initial version. The principle of automatic distribution is to record the coordinates of each power device in the background, calculate the distance with the coordinates of each substation, and obtain the distance to each substation. Usually, the nearest substation is used for power supply, which is the most cost-effective. The specific steps include:

[0043] Manual adjustment: Designers can quickly and manually adjust the switching of power supply substations according to their design intentions. The interface uses gray fill to indicate which substations are on the same layer as the device to assist designers in making judgments.

[0044] Locating point equipment: Through the plug-in interface, select the corresponding equipment, you can jump to the model with one click, so that users can check the location of the equipment in the model.

[0045] Sorting of electrical equipment: Sort the electrical equipment belonging to the same substation for easy viewing.

[0046] Refresh list: When the number of electrical devices in the model increases or decreases, or when power parameters change, you can use the refresh button to synchronize the latest content to the plug-in interface.

[0047] Distribution substation: This is the channel connected to the load calculation topology interface, which transmits the results of automatic load distribution to the topology interface.

[0048] Specifically, manual load distribution is usually adjusted manually based on automatic load distribution. Of course, it can also run independently without automatic load distribution. This kit provides three manual load distribution methods, which can be used interchangeably.

[0049] In the model view, select electrical equipment through the box and allocate these electrical equipment to the specified substation.

[0050] In the self-distribution load distribution interface, the ownership of the power station can be changed by manually switching the source of the power-consuming equipment.

[0051] Drag and drop in the topology diagram.

[0052] Specifically, Figure 5 As shown, you can preview the load distribution of each substation in the plane view, and observe the load distribution results more intuitively. Here, the display style of the power point is optimized and replaced according to the logo in the map application, so that you can clearly see the dispersed power point load.

[0053] Specifically, Figure 6 As shown, the topology diagram interface is the core of the entire load calculation. It includes a visualization window, which specifically includes a power equipment library, a function menu area, a property panel, an area switching option, a dual power equipment processing area, a judgment option, and a table generation option. By reading the initial version of the load distribution results, the subsequent load calculation steps are implemented on this basis. It is equivalent to creating a new and exclusive visualization space in the software. In this visualization window, all the power equipment in the project are mapped in, and all data are modified in linkage. Designers can clearly and conveniently perform load calculations through interactive methods such as "drag and drop" and "transfer".

[0054] Among them, the power equipment library integrates the power equipment in the entire project. The equipment in the power equipment library can be dragged to the operation area. When deleted in the operation interface, the power equipment is returned to the library. It can clearly prompt the user which power equipment is missing and will not be counted repeatedly.

[0055] Process set: includes electrical equipment proposed by coating and process professionals;

[0056] Public set: includes electrical equipment proposed by public professionals;

[0057] Custom set: At the beginning of load calculation, some electrical equipment cannot be located in the model, such as lighting load and socket load estimated by the designer, that is, electrical equipment not included in the model. It supports the creation of ordinary equipment and dual power supply equipment.

[0058] AP set, AL set, AT set: In the traditional design process, these electrical distribution cabinets may not be determined during load calculation. What is considered here is the functional extension of the entire design process. They may be connected with other functional modules later. They are retained here and automatically classified according to the keywords of the distribution cabinet number.

[0059] Other options: Other electrical equipment involved in load calculation.

[0060] The function menu area includes adding and reducing transformers: the overall operation interface is based on substations, and the number of transformers can be increased or decreased within the substation area;

[0061] Device Arrangement: The function menu provides a series of arrangement functions, which can quickly arrange the devices neatly;

[0062] Positioning: In the topology diagram interface, you can realize the associated positioning of electrical equipment. Selecting an electrical equipment will automatically jump to the model viewport.

[0063] Refresh project data: When there are changes to the electrical equipment in the project, including the addition or reduction of equipment, changes in name and power parameters, etc., the topology diagram can be automatically updated and adjusted after refreshing.

[0064] like Figure 7 As shown, the interface of the topology diagram has an attribute panel. According to the content selected by the user, the attribute card automatically switches and displays different contents. The attribute card content generally has three categories: substation attributes, transformer attributes, and power equipment attributes.

[0065] In the properties, some parameters can be modified, and after the data is modified, the attribute parameters of the model component are modified synchronously, truly achieving data connectivity and a unique data source.

[0066] The area switching tab displays all substations and generator rooms in the current project, which can be added and deleted. Click any one and the main operation interface will jump to the specified substation or generator room.

[0067] like Figure 8 As shown in the figure, the topology diagram fully considers the processing of dual power supply equipment. Different from ordinary power-consuming equipment, dual power supply equipment considers the two parameters of main power and backup power at the beginning of its creation.

[0068] First, the main power of the dual power supply is allocated. When the dual power supply equipment is placed in a transformer, the transformer will automatically be used as the main power source of the dual power supply equipment. Then the user selects the backup power source, which can be other transformers or generators. After the backup power is selected, a mirror image of the main power device will be automatically created in the backup power pointing area, and the backup power device has a special display logo.

[0069] like Fig. 9 As shown in the figure, the function module fully considers whether the electrical equipment participates in the load calculation of the transformer or generator. It can fully meet the special power supply requirements of various different equipment. For dual-power supply electrical equipment, the main power and backup power are considered separately, and the user can check whether to participate in the load calculation; for ordinary single-power supply electrical equipment, the user is also supported to choose whether to include it in the load calculation. For equipment that does not participate in the load calculation, the operation area will gray out the equipment, which is clear at a glance.

[0070] like Fig.10 As shown, during the load distribution process, you can view the table at any time. The table counts the equipment information of the transformer or generator, and automatically screens out the equipment that does not participate in the load calculation. The style is completely similar to the traditional Excel table. Users need to fill in the required coefficients, power factors, reactive power compensation, etc., and the load statistics results will be automatically calculated. When the user adjusts the equipment data, the table will be refreshed synchronously. The load calculation table is only a presentation of the results of the calculation process.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calculating power supply and distribution load based on information model visualization interaction, characterized in that: Based on the 3D design software Revit, the method comprises the following steps: Apply the BIM model, complete the layout of the power consumption points in the BIM model according to the locations of the power consumption points, and fill in the data parameters; Create and lay out substations; Automatically distribute power loads and create a preliminary topology diagram; Performing manual load distribution adjustment based on the automatic distribution; Visualize the topology diagram.

2. The method for calculating power supply and distribution load based on information model visual interaction according to claim 1, characterized in that: The visualization of the topological relationship diagram includes: a visualization window, which includes an electric equipment library, a function menu area, a property panel, an area switching option, a dual power supply equipment processing area, a judgment option and a table generation option.

3. The method for calculating power supply and distribution load based on information model visual interaction according to claim 2, characterized in that: The electrical equipment library is provided with process set, common set, custom set, distribution cabinet set and other items; the process set includes electrical equipment proposed by painting and process professionals; the common set includes electrical equipment proposed by common professionals; the custom set includes electrical equipment whose location cannot be determined in the BIM model; the distribution cabinet set includes AP set, AI set and AT set, which are automatically classified according to the keywords of the distribution cabinet number; the other items include other electrical equipment participating in load calculation.

4. The method for calculating power supply and distribution load based on information model visual interaction according to claim 2, characterized in that: The function menu includes options for adding or reducing transformers, equipment arrangement options, positioning options and refreshing project data options. The option for adding or reducing transformers can be based on substations, and the number of transformers can be increased or decreased within the substation area; the equipment arrangement option can be used to quickly arrange the equipment in an orderly manner; the positioning option can be used to achieve the associated positioning of power-consuming equipment; and the option for refreshing project data can automatically update and adjust after the power-consuming equipment is changed.

5. The method for calculating power supply and distribution load based on information model visual interaction according to claim 2, characterized in that: The attribute panel includes substation attributes, transformer attributes and power equipment attributes, and data can be modified; the area switching option can display and switch all substations and generator rooms.

6. The method for calculating power supply and distribution load based on information model visual interaction according to claim 2, characterized in that: The dual power supply equipment processing area includes main power parameters and backup power parameters.

7. The method for calculating power supply and distribution load based on information model visual interaction according to claim 2, characterized in that: The judgment option can be checked to determine whether the transformer or generator is involved in the load calculation.

8. The method for calculating power supply and distribution load based on information model visual interaction according to claim 2, characterized in that: The table generation option can generate a load calculation table during the load calculation process, and the load calculation table can be presented as a calculation result.

9. The method for calculating power supply and distribution load based on information model visual interaction according to claim 1, characterized in that: The automatic distribution of the power load can be performed by recording the coordinates of each power-consuming device in the background, calculating the distance with the coordinates of each substation respectively, and obtaining the distance with each substation.

10. The method for calculating power supply and distribution load based on information model visual interaction according to claim 1, characterized in that: The visual topology diagram reads the initial version of the load distribution results, implements subsequent load calculation steps based on this, maps all electrical equipment in the project, and modifies all data in a linked manner. Load calculation can be performed through the interactive methods of "drag and drop" and "transfer".

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