CN114357673A - Digital design method of distribution network based on BIM technology - Google Patents

Abstract

The invention relates to a distribution network digital design method based on BIM technology, which comprises a parameterized model library, equipment arrangement, cable wiring, cable intelligent interface arrangement and digital plotting which are sequentially completed; the parameterized model library is formed by simultaneously inputting related design parameters and drawings; the equipment arrangement comprises a civil engineering model and an external line overhead line arrangement, wherein the civil engineering model is formed by automatically identifying professional graphic symbols in D-Grid software according to the existing distribution network drawing and combining basic design information, and the external line overhead line arrangement comprises path selection, pole tower arrangement, pole tower foundation design and line path generation; the cable wiring comprises selecting a cable path, designing a cable channel, selecting a cable type and generating the cable path; the intelligent cable interface arrangement is combined with cable wiring to complete the extension at the interface end; and the digital drawing is to output the construction drawing by one key according to the formed drawing combination rule and the template library. The distribution network design is realized by the D-Grid software based on the BIM technology, and the blank of the distribution network three-dimensional design field is filled.

Description

Digital design method of distribution network based on BIM technology

technical field

The invention relates to the field of distribution network planning, in particular to a digital design method of distribution network based on BIM technology.

Background technique

In recent years, with the continuous development of BIM (Building Information Modeling-Building Information Modeling) technology, the application of BIM in the field of electric power engineering has been increasing. Lifecycle management model. 3D digital design Through the vigorous development of State Grid Corporation of China, the level of 3D design of power transmission and transformation projects has been continuously improved, and the functions of professional 3D design software have also been continuously improved.

D-Grid software formed based on BIM technology is the existing professional digital design software of State Grid Shanghai Electric Power Company. Through the design experience of professionals, combined with the design process of a large number of actual projects, the function has been continuously improved, and it has gradually developed into an industry-leading software. The horizontal digital design platform has effectively improved the three-dimensional design level and efficiency of the Shanghai company.

At present, the 3D digital design has been carried out relatively in-depth in the substation and lines of the main network, but there is still a large room for digging in the design of the distribution network. The application of digital design of substation in distribution network is almost blank in China. Compared with the main network project, the distribution network project has the characteristics of large construction scale, many points, wide area, wide variety of equipment, wide distribution range, large regional differences, and various forms. The traditional distribution network design is mainly based on two-dimensional software and two-dimensional plane, which cannot intuitively display the environment of the area where the power grid is located. Therefore, based on the D-Grid three-dimensional design platform, it is urgent to carry out research on the function development of distribution network substation design, combine the distribution network design module with substation design software, and endow the professional digital design capabilities of D-Grid software to more projects. solve.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a digital design method of distribution network based on BIM technology.

The technical solution adopted by the present invention to solve the technical problem is: a digital design method for distribution network based on BIM technology, including parameterized model library, equipment layout, cable wiring, cable intelligent interface layout and digital drawing completed in sequence;

The parametric model library is formed by related design parameters and drawings entered at the same time;

The equipment layout includes a civil engineering model and an external overhead line layout. The civil engineering model is imported into the D-Grid software according to the existing distribution network drawings, and the D-Grid software automatically recognizes the professional graphic symbols in it, and then combines the basic design information to form, The external overhead line layout includes path selection, pole tower ranking, pole tower foundation design and line path generation;

The cable routing includes selecting a cable path, designing a cable channel, selecting a cable type, and generating a cable path;

The intelligent interface arrangement of the cable is combined with the cable wiring to complete the extension at the end of the interface;

The digital drawing is to output the construction drawings with one key according to all the drawings formed above in combination with the rules and the template library.

Based on the D-Grid software, a parametric model library can be easily formed to realize the rapid layout of equipment. By entering key distance parameters, the positioning and placement of equipment can be quickly completed, and related models can be generated with one click, and cable wiring and interface layout can be completed with one click. Construction drawings, quickly and efficiently complete the digital design of the distribution network.

Further, the parametric model library includes a material model of electrical primary equipment, relevant attribute information of the model, and an electrical floor plan of a typical station.

Further, the formation of the civil engineering model includes the following steps:

(1) Import the existing distribution network CAD drawings into the D-Grid software. The D-Grid software provides a layer mapping interface to check the symbol category of the selected coating;

(2) According to the layer symbol category, input the necessary design parameters, and quickly generate various types of civil engineering models in batches.

Further, the specific steps of the external overhead line arrangement are:

(1) Path selection, place two-dimensional parameterized path points, and record relevant attribute information on point symbols to provide a basis for subsequent digital design;

(2) Ranking of the tower, set the parameters of the tower according to the two-dimensional point symbol of the layout, and quickly complete the layout of the tower model;

(3) For the design of the tower foundation, set the parameters of the foundation according to the layout position of the tower model, and quickly complete the layout of the foundation model;

(4) Line path generation, according to the two-dimensional point symbol, the auxiliary path is automatically generated, and manual modification is supported at the same time.

Further, the specific steps of the cable wiring are:

(1) Path selection, place two-dimensional parameterized path points, and record relevant attribute information on point symbols to provide a basis for subsequent digital design;

(2) Select the cable path, and select the path suitable for cable laying according to the drawn path line;

(3) Cable channel design, setting symbol parameters such as cable wells, cable pipes, etc., combined with cable paths, to quickly complete the layout of related models;

(4) Cable selection, set the main parameters of the cable, and combine the cable path to quickly generate the cable model;

(5) Cable path generation, according to the two-dimensional point symbol, the auxiliary path is automatically generated, and manual modification is supported at the same time.

Furthermore, the intelligent cable interface arrangement is specifically an intelligent identification of the first cable well outside the station, and the extension of the optical cable at the interface end is completed in combination with the arranged cable channel.

Further, the specific steps of the digital drawing are:

(1) List all the design drawings of the distribution network project, and specify the drawing elements for each drawing;

(2) According to the three-dimensional design results, combined with the electrical engineering drawing standards, list the placement rules for dimensioning, text annotations, and legend symbols;

(3) According to the drawing range, drawing name, scale and other information, select the size and placement position of the drawing frame, and generate a 3D model drawing with dimensioning;

(4) Combined with the above rules and template library, one-click output of construction drawings.

The beneficial effects of the present invention are: the D-Grid software of the present invention based on the BIM technology realizes the design of the distribution network, which can fill the gap in the field of three-dimensional design of the distribution network, enrich the design functions of the D-Grid software, and explore the realization of the main functions in the D-Grid software. The interoperability of network and distribution network design lays the foundation.

Detailed ways

The present invention will now be further described with reference to the preferred embodiments.

A digital design method of distribution network based on BIM technology, including parametric model library, equipment layout, cable routing, cable intelligent interface layout and digital drawing completed in sequence; Formation, including the material model of electrical primary equipment, the relevant attribute information of the model, and the electrical floor plan of a typical station; the equipment layout includes civil engineering model and external overhead line layout, civil engineering model formation: import the existing distribution network CAD drawings into D-Grid In the software, D-Grid software provides a layer mapping interface, which is used to check the symbol category of the selected coating; input the necessary design parameters according to the layer symbol category, and quickly generate models of various categories of civil works in batches; the specific steps for the layout of external overhead lines For: path selection, placing 2D parametric path points, and recording relevant attribute information on point symbols to provide a basis for subsequent digital design; tower ranking, setting the parameters of the tower according to the arranged 2D point symbols, and completing the process quickly Layout of the tower model; tower foundation design, set the parameters of the foundation according to the layout position of the tower model, and quickly complete the layout of the foundation model; line path generation, automatically generate auxiliary paths according to 2D point symbols, and support manual modification; cable routing The specific steps are: path selection, placing two-dimensional parameterized path points, recording relevant attribute information on point symbols, and providing a basis for subsequent digital design; selecting cable paths, according to the path lines that have been drawn, select suitable cables for laying. Path; cable channel design, setting symbol parameters such as cable wells, cable pipes, etc., combined with cable path, to quickly complete the layout of related models; cable selection, setting main parameters of cable, combined with cable path, quickly generate cable model; cable path Generate, automatically generate auxiliary paths according to two-dimensional point symbols, and support manual modification at the same time; cable intelligent interface layout is specifically the first cable well outside the intelligent identification station, combined with the arranged cable channel, to complete the optical cable at the interface end The specific steps of digital drawing are: list all the design drawings of the distribution network project, and specify the drawing elements for each drawing; according to the three-dimensional design results, combined with the electrical engineering drawing standards, list the dimensions, text annotations, legend symbols. Placement rules; according to the drawing range, drawing name, scale and other information, select the size and placement position of the drawing frame, and generate a dimensioned 3D model drawing; combine the above rules and template library, output construction drawings with one click.

Among them, the distribution substation wiring diagram is a specific and regular graphic, which can be drawn using SVG technology (Scalable Vector Graphics), which basically consists of some fixed electrical components, each The related attribute information is recorded behind the electrical components. The entire wiring diagram records the associated information between the components, and saves this information as a file in a format; then import the file into the distribution network 3D design software, and the software automatically Obtain the relationship among them, reasonably organize the graphics library in the 3D software for distribution network and substation, and quickly generate a wiring diagram in the 3D software for distribution network, which is convenient for subsequent digital design applications.

Among them, the three-dimensional path is drawn in the cable routing, which supports multiple adjustments. After the path design is completed, the section of the conductor is selected, and the lofting completes the cable entity model. According to the cable model that has been laid, the hardware model can be quickly and accurately arranged by means of adsorption, which reduces the time for model positioning and adjustment and improves the efficiency of 3D design.

In addition, lighting power will be set in the cable wiring, which can quickly arrange lighting power equipment, design connecting wires, and complete the configuration design of lighting power system diagram.

After the design is completed, the D-Grid software can extract the 3D design model, summarize and sort out the model engineering quantity from the relevant attribute parameters on the 3D design model, and count the relevant data entered in a specific stage of the 3D design through the relevant data statistics. The engineering quantity is composed of the model engineering amount and the data engineering amount. At the same time, the project budget and capital plan can be effectively realized, and the established 3D design model can be combined with the time dimension to define the time according to the area, equipment, and single building. Through the definition of the planned start time and planned completion time, combined with the project cost, the monthly or even daily project cost can be quickly obtained; finally, combined with the contract situation, the capital plan of the entire project can be specified to achieve effective and precise control.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement it, and cannot limit the scope of protection of the present invention with this, all according to the spirit of the present invention Substantially equivalent changes or modifications should be included within the protection scope of the present invention.

Claims (7)

1. A digital design method for distribution network based on BIM technology, characterized in that: comprising a parametric model library, equipment layout, cable wiring, cable intelligent interface layout and digital drawing completed in sequence; The parametric model library is formed by related design parameters and drawings entered at the same time; The equipment layout includes a civil engineering model and an external overhead line layout. The civil engineering model is imported into the D-Grid software according to the existing distribution network drawings, and the D-Grid software automatically recognizes the professional graphic symbols in it, and then combines the basic design information to form, The external overhead line layout includes path selection, pole tower ranking, pole tower foundation design and line path generation; The cable routing includes selecting a cable path, designing a cable channel, selecting a cable type, and generating a cable path; The intelligent interface arrangement of the cable is combined with the cable wiring to complete the extension at the end of the interface; The digital drawing is to output the construction drawings with one key according to all the drawings formed above in combination with the rules and the template library. 2 . The digital design method for distribution network based on BIM technology according to claim 1 , wherein the parametric model library includes material models of electrical primary equipment, relevant attribute information of the models, and electrical floor plans of typical stations. 3 . 3. The digital design method for distribution network based on BIM technology according to claim 1, characterized in that: the formation of the civil engineering model comprises the following steps: (1) Import the existing distribution network CAD drawings into the D-Grid software. The D-Grid software provides a layer mapping interface to check the symbol category of the selected coating; (2) According to the layer symbol category, input the necessary design parameters, and quickly generate various types of civil engineering models in batches. 4. The digital design method for distribution network based on BIM technology according to claim 1, wherein: the concrete steps of arranging the external overhead lines are: (1) Path selection, place two-dimensional parameterized path points, and record relevant attribute information on point symbols to provide a basis for subsequent digital design; (2) Ranking of the tower, set the parameters of the tower according to the two-dimensional point symbol of the layout, and quickly complete the layout of the tower model; (3) For the design of the tower foundation, set the parameters of the foundation according to the layout position of the tower model, and quickly complete the layout of the foundation model; (4) Line path generation, according to the two-dimensional point symbol, the auxiliary path is automatically generated, and manual modification is supported at the same time. 5. The digital design method for distribution network based on BIM technology according to claim 1, wherein the specific steps of the cable wiring are: (1) Path selection, place two-dimensional parameterized path points, and record relevant attribute information on point symbols to provide a basis for subsequent digital design; (2) Select the cable path, and select the path suitable for cable laying according to the drawn path line; (3) Cable channel design, setting symbol parameters such as cable wells, cable pipes, etc., combined with cable paths, to quickly complete the layout of related models; (4) Cable selection, set the main parameters of the cable, and combine the cable path to quickly generate the cable model; (5) Cable path generation, according to the two-dimensional point symbol, the auxiliary path is automatically generated, and manual modification is supported at the same time. 6. The BIM technology-based distribution network digital design method according to claim 5, characterized in that: the intelligent cable interface layout is specifically an intelligent identification of the first cable well outside the station, combined with the arranged cable channel, Complete the extension of the optical cable at the end of the interface. 7. The digital design method for distribution network based on BIM technology according to claim 1, characterized in that: the specific steps of the digital drawing are: (1) List all the design drawings of the distribution network project, and specify the drawing elements for each drawing; (2) According to the three-dimensional design results, combined with the electrical engineering drawing standards, list the placement rules for dimensioning, text annotations, and legend symbols; (3) According to the drawing range, drawing name, scale and other information, select the size and placement position of the drawing frame, and generate a 3D model drawing with dimensioning; (4) Combined with the above rules and template library, one-click output of construction drawings.