A large transformer layout three-dimensional design system and design method

Abstract

The application belongs to the field of three-dimensional digitization, and particularly relates to a large transformer layout diagram three-dimensional design system and a design method, which comprises: a layout diagram business table module, which stores and analyzes digitized design specifications containing large component selection information, assembly position information, size parameter definition and logical calculation rules between parameters; a parameterized template library, which comprises iron core, coil insulation and oil tank assembly templates established based on a Creo platform; a general part library and a standard part library, which store standard three-dimensional components; a parameterized design engine, which is used for dynamically generating an instantiated model; a view manager module, which is used for generating a layout diagram model with a dynamic simplified representation; and a data integration module, which realizes synchronous uploading of three-dimensional model and engineering drawing data to a product life cycle management system. The application reduces the workload of drawing, measuring, modifying drawings and judging whether components interfere with each other, realizes design input standardization through digitized design specifications and a parameterized template library, and reduces manual calculation and drawing interference risks.

Description

Technical Field

[0001] This invention belongs to the field of three-dimensional digitization, specifically a large transformer arrangement. Figure 3 Dimensional design system and design methodology. Background Technology

[0002] In the design of large-scale transformer projects, the structural layout drawing is the foundation and basis for transformer design, directly affecting the product's appearance, design quality, and manufacturing quality. Generally, a complete transformer should include components such as the core, insulation, coil assembly, tank, leads, cooling system, connecting pipes, instrument transformers, measurement and control wiring diagrams, and overall assembly. Each component works in conjunction with the others, and its relevant technical parameters and limitations should be reflected in the layout drawing. The layout drawing typically employs a modular, layered design method, facilitating direct reference to other major component design drawings, improving work efficiency, and shortening the design cycle. The geometric dimensions and positioning dimensions of each component in the layout drawing must be complete and accurate. Any issues or requirements that cannot be described graphically must be fully reflected in the technical specifications. Due to the massive workload and limited versatility of transformer layout drawing design, there is currently no professional integrated design software developed by the transformer industry; transformer manufacturers must develop their own design tools.

[0003] Arrangement Figure 2 Design tools for 3D design are very mature, with software such as AutoCAD being widely available, and drafting costs are low, with a short training period per person. However, its spatial representation is distorted, and projection drawings cannot show three-dimensional interference; collaboration efficiency is low, requiring professional designers to repeatedly compare plan and section drawings, resulting in a long design iteration cycle; data fragmentation is severe, requiring manual conversion between drawings and simulation models, and parameter synchronization error rates are relatively high. In comparison, layout... Figure 3 3D design can present a three-dimensional view, supporting 360° perspective review and facilitating interference detection of components; it can enable collaboration among multiple professionals, achieving real-time data sharing on the system platform and shortening the design cycle; it can also be integrated with simulation, directly embedding electromagnetic and thermal field simulation into the 3D design environment to improve verification efficiency.

[0004] Traditional layout Figure 2 The design process involves analyzing and refining the core data and performance parameters provided by the calculation sheet, and determining the selection and layout of each component based on design specifications and past design experience, thereby calculating the dimensions and positions of each component. This process is complex, tedious, and prone to human error, failing to establish a standardized and regulated workflow. During the layout of large components, supervisors need to manually verify and perform numerous calculations, resulting in a significant workload. Considering the reference role of the layout diagram in the subsequent design of various components, incomplete initial planning and numerous iterative processes can easily lead to many unreasonable designs or even design errors. Summary of the Invention

[0005] The purpose of this invention is to provide a large transformer layout. Figure 3 Dimensional design systems and methods to solve traditional layout problems Figure 2 The design process is complex and cumbersome, with a high rate of human error, and has failed to form a standardized and regulated workflow.

[0006] The technical solution adopted by the present invention to achieve the above objectives is: a large transformer arrangement. Figure 3 3D design system, including:

[0007] The layout diagram business table module is used to store and parse digital design specifications that include information on the selection of major components, assembly location information, dimensional parameter definitions, and logical calculation rules between parameters.

[0008] The parametric template library includes core assembly templates, coil insulation assembly templates, and oil tank assembly templates built on the Creo platform.

[0009] The general parts library and the standard parts library are used to store 3D basic component models with standard interfaces;

[0010] The parametric design engine module is used to dynamically call the template library to generate instantiated models based on the input design parameters;

[0011] The view manager module integrates secondary development components to generate layout diagram models with dynamic simplified representations.

[0012] The data integration module, including the PLM system interface and the cloud collaboration platform interface, enables the synchronous uploading of 3D model and engineering drawing data to the product lifecycle management system.

[0013] The parameterized template library includes:

[0014] The skeleton model submodule is used to predefine the spatial assembly relationships between components using a coordinate system positioning method;

[0015] The parameter-driven submodule is used to define key dimensions such as core diameter, coil height, and tank wall thickness as configurable parameters, and automatically recommend adjustment ranges for key parameters;

[0016] The interference check submodule is used to automatically verify the safe distance during the assembly of the oil tank and bushing using an insulation distance calculation algorithm.

[0017] The skeleton model submodule includes:

[0018] The core assembly frame is pre-set with the coordinate system of the yoke section center and the winding positioning reference plane.

[0019] Fuel tank assembly frame, used to generate tank stiffeners and radiator mounting surfaces based on input parameters;

[0020] The assembly skeleton model is used to define the spatial constraint relationship between the body positioning reference and the sleeve mounting surface.

[0021] The view manager module includes:

[0022] A simplified representation rule library is used to store the component visibility rules and projection detail levels of different engineering drawing views, and to generate layout model;

[0023] The automatic dimensioning component is used to generate dimension chains that conform to IEC standards based on a preset dimensioning strategy and to automatically correct the dimensioning positions.

[0024] The multi-view association component is used to ensure that the layout drawing and the outline drawing are updated synchronously when the model is modified.

[0025] The parametric design engine module includes:

[0026] The parameter input interface is the main interface used to provide input of core parameters such as core diameter, winding height, and insulation distance.

[0027] A model generator that drives templates to generate 3D solids with characteristic dimensions based on parameter mapping relationships;

[0028] The intelligent assembler is used to automatically complete the spatial positioning of the body, oil tank, and casing according to the coordinate system preset by the skeleton model.

[0029] A large transformer layout Figure 3 The design methodology of a 3D design system includes the following steps:

[0030] S1: Construct a parameterized knowledge base through the layout diagram business table module to transform design specifications into parsable business rule tables;

[0031] S2: The parameter input interface of the parametric design engine module receives design input parameters and performs parameter validation and conflict detection.

[0032] S3: The parametric design engine module calls the parametric template to generate a 3D model, and at the same time, the view manager module generates engineering drawings.

[0033] S4: Upon receiving a parameter modification instruction, the model is regenerated, updating the projection relationships of all associated views. The PLM system integration interface then uploads the updated model and engineering drawings.

[0034] Step S1 includes the following steps:

[0035] S1-1: Based on historical design data and industry standards, define the selection conditions, assembly priorities and dimensional logic relationships of each component, and complete the construction of a parametric knowledge base;

[0036] S1-2: Store the assembly rules, dimensional logic rules, and template mapping relationships in an Excel spreadsheet, and import them into the system for parsing to obtain a parsable business rule table;

[0037] The parsable business rule table includes:

[0038] The assembly rule table is used to define the selection conditions and assembly priority of each component;

[0039] Dimension logic table, used to establish mathematical relationships and constraints between parameters;

[0040] Template mapping table, used to associate design parameters with template-driven variables.

[0041] Step S2 includes the following steps:

[0042] S2-1: Receive input parameters through the parameter input interface;

[0043] The input parameters include: a core design parameter set containing diameter, window height, and lamination factor; a winding design parameter set containing axial height, radial dimension, and insulation thickness; and a tank design parameter set containing length, width, height reference dimensions, and wall thickness parameters.

[0044] S2-2: Verify whether the input parameters are within the preset threshold range and check the matching between the winding size and the core window;

[0045] S2-3: Call the interference check submodule to generate the main structure of the tank based on the reference dimensions of the tank's length, width and height, and verify whether the insulation distance between the oil tank and the bushing meets the safety requirements;

[0046] Step S3 includes the following steps:

[0047] S3-1: Based on the core parameters, drive the core template to generate the core solid model and automatically generate the coordinate system of the yoke section center;

[0048] S3-2: Generate a coil solid model containing turn insulation structure based on winding parameters and locate it to the winding reference plane of the iron core frame;

[0049] S3-3: Generate a solid model of the fuel tank based on the fuel tank parameters and the tank body template; generate tank body reinforcing ribs and radiator mounting surfaces based on the fuel tank wall thickness parameters; and verify the assembly spacing between the radiator and the sleeve through the interference check submodule.

[0050] S3-4: Based on the spatial constraints of the general assembly skeleton model, automatically complete the assembly and positioning of the fuselage, oil tank and casing; and generate layout engineering drawings through the view manager module, including key dimension chains and enlarged views of parts;

[0051] S3-5: Call the explicit and implicit rules and projection detail levels in the simplified representation rule base to generate multi-view engineering drawings;

[0052] S3-6: The automatic annotation component captures images of the dimension annotations in the engineering drawing, compares the recognition results with the preset annotation strategy, and automatically adjusts the annotations to the compliant position if there is an offset.

[0053] A computer-readable storage medium storing a computer program, which, when executed by a processor, implements the aforementioned large transformer arrangement. Figure 3 Design methodology for dimensional design systems.

[0054] The present invention has the following beneficial effects and advantages:

[0055] 1. This invention achieves a unified structural design for the layout of large AC transformers. Compared with traditional two-dimensional design, it standardizes, normalizes, and unifies the design input, reduces human errors caused by manual calculations and interference between components in the drawings, and simultaneously solidifies the design logic in a digital form within the system. The system strictly follows the predetermined logic to design the product, ensuring the strict implementation of the design rules.

[0056] 2. This invention allows for rapid iteration and fine-tuning of the design during the design process. Simultaneously, by generating a layout model, two sets of engineering drawings—a layout drawing and a shape drawing—can be obtained, both associated with the model.

[0057] 3. This invention reduces the workload of drawing, measuring, modifying drawings, and judging whether there is interference between components. Through digital design specifications and parametric template library, it achieves standardized design input and reduces the risk of manual calculation and drawing interference. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the composition structure of the large transformer layout design system of the present invention;

[0059] Figure 2 The large transformer arrangement of the present invention Figure 3 Flowchart of the dimensional design method;

[0060] Figure 3 The large transformer arrangement of the present invention Figure 3 Main interface diagram of the dimensional design system;

[0061] Figure 4 This is the layout model generated by the system of this invention;

[0062] Figure 5 It is the layout engineering drawing generated by the system of this invention. Detailed Implementation

[0063] The description of the embodiments in this specification should be taken in conjunction with the accompanying drawings, which should form part of the complete specification. In the drawings, the shape or thickness of the embodiments may be exaggerated and may be indicated in a simplified or convenient manner. Furthermore, parts of the various structures in the drawings will be described separately; it is worth noting that elements not shown in the figures or not described in words are in a form known to those skilled in the art.

[0064] This invention provides a large transformer layout Figure 3 3D design system and methods. Traditional 2D design requires supervisors to draw and annotate drawings stroke by stroke. Modifying even a single element necessitates simultaneous modifications to multiple views to ensure data consistency, and repeated measurements are used to determine if interference exists between components. In contrast, 3D design only requires calculating single data points to pre-create templates. After filling in design parameters, a model is directly generated. Creo's view management function pre-creates the content of different views required for layout and engineering drawing templates. Tookit's secondary development simplifies the representation function, enabling automatic generation of engineering drawings. One model corresponds to two sets of drawings: layout and outline. Modifying the model directly through design parameters automatically updates the modified content in both sets of engineering drawings, significantly shortening the drawing design cycle. Figure 3 The design also employs a combination of simplified and solid models. The simplified model omits details other than critical dimensions, reducing input parameters and projected lines while enhancing the readability of the engineering drawings, making them clearer and more concise. The solid model allows for direct observation to determine whether there is interference between components and whether the assembly positions of different components are reasonable. For example, if the oil conservator needs to be placed outside the insulation distance of the bushing, a solid model of the bushing with parameter-controlled insulation radius can be obtained by designing the insulation distance parameters of the bushing. This allows for a clear determination of the rationality of the oil conservator's layout during installation, significantly reducing the time and effort spent on verification by the supervisor.

[0065] During the design layout process, the supervisor only needs to fill in key parameters to quickly complete the assembly of all components required for the layout and generate layout and outline drawings composed of corresponding views from different angles, showing the interrelationships between the components. Through integration with a PLM system, models and drawings can be quickly uploaded for large component designers to view and design. This invention also provides a design method for large transformer layout and outline drawings, forming a standardized and regulated workflow through the streamlining of design procedures and the summarization of experience.

[0066] To achieve the above objectives, a large transformer arrangement is provided according to the present invention. Figure 3 The system is a 3D design system. It uses parametric methods for modeling solid and simplified models, quickly generating product models. Through Toolkit secondary development and pre-fabricated view manager templates, it presets layout drawings, engineering icon annotations, and displays, simultaneously generating external shape drawings. It is also integrated with PLM (Product Lifecycle Management). Figure 1 The diagram shown is a schematic representation of the composition of the large transformer layout design system of the present invention. The present invention provides a large transformer layout... Figure 3 3D design system, including:

[0067] (I) Layout Diagram Business Table Module

[0068] The layout drawing business table module is used to store and parse digital design specifications that include major component selection information, assembly location information, dimensional parameter definitions, and logical calculation rules between parameters; a parameterized knowledge base is built through the layout drawing business table module to transform the design specifications into a parsable business rule table;

[0069] The layout diagram business table is the layout diagram business logic that can be parsed by the system, including the selection information, assembly location information, dimension information, parameter definitions, and logical calculation rules between parameters for the major components included in the layout diagram;

[0070] The layout diagram business table includes:

[0071] The assembly rule table is used to define the selection conditions and assembly priorities of each component, and embeds fuzzy logic to support imprecise condition matching.

[0072] The dimension logic table is used to establish mathematical relationships and constraints between parameters and to automatically derive implicit rules through a symbolic computation engine.

[0073] Template mapping table is used to associate design parameters with template-driven variables and supports fast parameter backtracking based on graph database;

[0074] A historical case library is used to store typical design cases and optimization parameter combinations, and to recommend similar solutions through a collaborative filtering algorithm.

[0075] (II) Parametric Template Library

[0076] The parametric template library includes core assembly templates, coil insulation assembly templates, and tank assembly templates built on the Creo platform. Based on product design rules, it defines parameter-driven Creo templates. During parametric design, different component instances are generated by inputting parameters. These component instances are then assembled into a layout model according to assembly logic. These parameter-driven Creo templates are called parametric templates. Parametric templates refer to the component templates used in the layout drawing, such as those for the core, transformer body, and tank. General-purpose and standard-purpose templates were also completed in the project.

[0077] The parameterized template library includes:

[0078] The skeleton model submodule is used to predefine the spatial assembly relationships between components using a coordinate system positioning method;

[0079] The parameter-driven submodule is used to define key dimensions such as core diameter, coil height, and tank wall thickness as configurable parameters, and automatically recommend adjustment ranges for key parameters;

[0080] The interference check submodule is used to automatically verify the safe distance during the assembly of the oil tank and bushing using an insulation distance calculation algorithm.

[0081] The skeleton model submodule includes:

[0082] The core assembly frame is pre-set with the coordinate system of the yoke section center and the winding positioning reference plane.

[0083] Fuel tank assembly frame, used to generate tank stiffeners and radiator mounting surfaces based on input parameters;

[0084] The assembly skeleton model is used to define the spatial constraint relationship between the body positioning reference and the sleeve mounting surface.

[0085] (III) General Parts Library and Standard Parts Library

[0086] The general parts library and the standard parts library are used to store 3D basic component models with standard interfaces;

[0087] (iv) Parametric Design Engine Module

[0088] The parametric design engine module dynamically calls a template library to generate instantiated models based on input design parameters. It operates on predefined design rules, allowing the product structure manager to input product design parameters sequentially via the system's navigation interface. Then, based on these parameters, the module calls a REEO parametric template to generate a REEO model instance. Finally, according to the assembly logic, the components are assembled layer by layer to form the layout drawing.

[0089] like Figure 3 The diagram shows the arrangement of the large transformer according to the present invention. Figure 3 The main interface diagram of the dimensional design system, including the design parameters input on the main interface:

[0090] The core design parameter set includes: diameter, window height, lamination factor, and the core material performance is verified by the hysteresis loop model;

[0091] The winding design parameter set includes: axial height, radial dimension, insulation thickness, and optimizes conductor layout by combining skin effect analysis;

[0092] The fuel tank design parameter set includes: length, width and height reference dimensions, wall thickness parameters, and the structural strength is verified through vibration modal analysis;

[0093] The external environment parameter set includes: installation space constraints, heat dissipation requirements, and integrates GIS data to achieve geographic environment adaptation.

[0094] This module includes:

[0095] The parameter input interface is used to provide the input interface for the aforementioned core parameters;

[0096] A model generator that drives templates to generate 3D solids with characteristic dimensions based on parameter mapping relationships;

[0097] The intelligent assembler is used to automatically complete the spatial positioning of the body, oil tank, and casing according to the coordinate system preset by the skeleton model.

[0098] (V) View Manager Module

[0099] The view manager module integrates secondary development components to generate layout diagram models with dynamic simplified representations.

[0100] The view manager module includes:

[0101] A simplified representation rule library is used to store the component visibility rules and projection detail levels of different engineering drawing views, and to generate layout model;

[0102] The automatic dimensioning component is used to generate dimension chains that conform to IEC standards according to a preset dimensioning strategy, and automatically correct the dimensioning position based on OCR technology;

[0103] The multi-view association component is used to ensure that the layout drawing and the outline drawing are updated synchronously when the model is modified.

[0104] (vi) Data Integration Module

[0105] The data integration module, including the PLM system interface and the cloud collaboration platform interface, enables the synchronous uploading of 3D model and engineering drawing data to the product lifecycle management system.

[0106] like Figure 2 The diagram shows the arrangement of the large transformer according to the present invention. Figure 3 A flowchart of the design method, and an invention for the layout of a large transformer. Figure 3 The design methodology of a 3D design system includes the following steps:

[0107] A large transformer layout Figure 3 The design methodology of a 3D design system includes the following steps:

[0108] S1: Construct a parameterized knowledge base through the layout diagram business table module to transform design specifications into parsable business rule tables;

[0109] S1-1: Based on historical design data and industry standards, define the selection conditions, assembly priorities and dimensional logic relationships of each component, and complete the construction of a parametric knowledge base;

[0110] S1-2: Store the assembly rules, dimensional logic rules, and template mapping relationships in an Excel spreadsheet, and import them into the system for parsing to obtain a parsable business rule table;

[0111] S2: The parameter input interface of the parametric design engine module receives design input parameters and performs parameter validation and conflict detection.

[0112] S2-1: Receive input parameters through the parameter input interface;

[0113] S2-2: Verify whether the input parameters are within the preset threshold range and check the matching between the winding size and the core window;

[0114] S2-3: Call the interference check submodule to generate the main structure of the tank based on the reference dimensions of the tank's length, width and height, and verify whether the insulation distance between the oil tank and the bushing meets the safety requirements;

[0115] S3: The parametric design engine module calls the parametric template to generate a 3D model, and at the same time, the view manager module generates engineering drawings.

[0116] S3-1: Based on the core parameters, drive the core template to generate the core solid model and automatically generate the coordinate system of the yoke section center;

[0117] S3-2: Generate a coil solid model containing turn insulation structure based on winding parameters and locate it to the winding reference plane of the iron core frame;

[0118] S3-3: Generate a solid model of the fuel tank based on the fuel tank parameters and the tank body template; generate tank body reinforcing ribs and radiator mounting surfaces based on the fuel tank wall thickness parameters; and verify the assembly spacing between the radiator and the sleeve through the interference check submodule.

[0119] S3-4: Based on the spatial constraints of the general assembly skeleton model, automatically complete the assembly and positioning of the fuselage, oil tank and casing; and generate layout engineering drawings through the view manager module, including key dimension chains and enlarged views of parts;

[0120] S3-5: Call the explicit and implicit rules and projection detail levels in the simplified representation rule base to generate multi-view engineering drawings;

[0121] S3-6: The automatic annotation component captures images of the dimension annotations in the engineering drawing, compares the recognition results with the preset annotation strategy, and automatically adjusts the annotations to the compliant position if there is an offset.

[0122] S4: Upon receiving a parameter modification instruction, the model is regenerated, updating the projection relationships of all associated views. The PLM system integration interface then uploads the updated model and engineering drawings.

[0123] Example 1:

[0124] Specifically, Figure 1 Arrangement of large transformers according to the present invention Figure 3 The system architecture of the dimensional design system includes a layout diagram logic table that integrates design rules, and pre-built layout diagram template library, general parts library, and standard parts library in the PLM. Through integration with Shenyang Transformer's comprehensive management system, the ADP system can obtain basic data from calculation sheets. Through integration with the PLM, models can be directly uploaded to the PLM database from the Creo client. Through secondary development of Toolkit, engineering drawings can automatically achieve simplified representations of the model.

[0125] Specifically, the layout diagram business table mainly includes an assembly table, a logic table, and a template table. The assembly table contains the selection criteria and assembly positions for each major component.

[0126] The logic table contains parameters used for assembly positions and parameters used for large component dimensions. Parameter control methods include user input, fixed values, recommended values, and automatic calculation. For parameters with automatic calculation and recommended values, the calculation logic is provided based on design specifications and design experience. The template table maps the driving parameters of each model in the layout drawing parameterization template library one-to-one with the parameters in the logic table, which is the step implemented through step S1 in this embodiment.

[0127] According to step S2 of the present invention: The core assembly template, coil insulation assembly template, and oil tank assembly template in the parameterized template library are called. Combined with the input core diameter, coil height, and oil tank wall thickness parameters, the key dimensions are dynamically adjusted through the parameter-driven submodule. The spatial assembly relationships between components are predefined based on the skeleton model submodule. Specifically, the pre-made models in the layout template library of this embodiment include core assembly, coil insulation assembly, and oil tank assembly. Each assembly contains a skeleton model, and the assembly relationships are preset in the skeleton model using a coordinate system.

[0128] Furthermore, the parametric design engine module is used to generate instantiated 3D models based on input parameters and optimize the assembly sequence. Before this, similar large components can be searched before parametric design. If similar products exist, the previous product data can be reused.

[0129] Specifically, such as Figure 3 Arrangement shown Figure 3 The structural design requires input of key parameters and selection criteria. It is mainly divided into the core, coil insulation, oil tank, and assembly sections. A top-down design process was meticulously planned to avoid errors caused by human intervention. For example... Figure 3 As shown, after the system parameters are set, the layout model is generated through the view manager module, and dimension chains conforming to IEC standards are automatically annotated.

[0130] After the model is generated, you can click "Assemble" to assemble the generated model. Then, modify any problematic parameters in the system and click "Update." This will synchronize the layout drawing and the outline drawing, updating the model data. Once the final parameter data is obtained, the engineering drawings will automatically synchronize the model data to generate the revised final version of the drawings. The resulting model is as follows: Figure 4 As shown, the layout drawing is as follows: Figure 5 As shown.

[0131] Finally, the 3D model and engineering drawing data are uploaded to the PLM system and cloud collaboration platform using the data integration module, and data consistency is ensured through blockchain technology.

[0132] In summary, this invention addresses the complexity and inefficiency of large transformer layout design by proposing an innovative system and method integrating 3D modeling, intelligent algorithms, and collaborative management. The system uses natural language processing and fuzzy logic to analyze design requirements, dynamically generates optimized models using a parametric template library, visually displays risk areas using interference detection and heatmaps, and achieves automatic annotation and multi-view synchronization of engineering drawings based on a view manager. The data integration module connects PLM and cloud platforms to ensure data security throughout the entire process. Compared to traditional 2D design, this invention significantly improves design accuracy, efficiency, and collaborative capabilities, providing the transformer industry with a standardized and intelligent 3D design solution, possessing significant engineering application value and market potential.

[0133] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present invention, and the features described in the various embodiments and / or claims of this disclosure can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this disclosure. This is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0134] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention. Clearly, those skilled in the art can make various alterations and modifications to the invention without departing from its spirit and scope. Thus, if these modifications and modifications of the invention fall within the scope of the claims and their equivalents, the invention is also intended to include these modifications and modifications.

Claims

1. A three-dimensional design system for large transformer layout diagrams, characterized in that, include: The layout diagram business table module is used to store and parse digital design specifications that include information on the selection of major components, assembly location information, dimensional parameter definitions, and logical calculation rules between parameters. The parametric template library includes core assembly templates, coil insulation assembly templates, and oil tank assembly templates built on the Creo platform. The general parts library and the standard parts library are used to store 3D basic component models with standard interfaces; The parametric design engine module is used to dynamically call the template library to generate instantiated models based on the input design parameters; The view manager module integrates secondary development components to generate layout diagram models with dynamic simplified representations. The data integration module, including the PLM system interface and the cloud collaboration platform interface, enables the synchronous uploading of 3D model and engineering drawing data to the product lifecycle management system.

2. The three-dimensional design system for large transformer layout diagrams according to claim 1, characterized in that, The parameterized template library includes: The skeleton model submodule is used to predefine the spatial assembly relationships between components using a coordinate system positioning method; The parameter-driven submodule is used to define key dimensions such as core diameter, coil height, and tank wall thickness as configurable parameters, and automatically recommend adjustment ranges for key parameters; The interference check submodule is used to automatically verify the safe distance during the assembly of the oil tank and bushing using an insulation distance calculation algorithm.

3. The three-dimensional design system for large transformer layout diagrams according to claim 2, characterized in that, The skeleton model submodule includes: The core assembly frame is pre-set with the coordinate system of the yoke section center and the winding positioning reference plane. Fuel tank assembly frame, used to generate tank stiffeners and radiator mounting surfaces based on input parameters; The assembly skeleton model is used to define the spatial constraint relationship between the body positioning reference and the sleeve mounting surface.

4. The three-dimensional design system for large transformer layout diagrams according to claim 1, characterized in that, The view manager module includes: A simplified representation rule library is used to store the component visibility rules and projection detail levels of different engineering drawing views, and to generate layout model; The automatic dimensioning component is used to generate dimension chains that conform to IEC standards based on a preset dimensioning strategy and to automatically correct the dimensioning positions. The multi-view association component is used to ensure that the layout drawing and the outline drawing are updated synchronously when the model is modified.

5. A three-dimensional design system for large transformer layout diagrams according to claim 1, characterized in that, The parametric design engine module includes: The parameter input interface is the main interface used to provide input of core parameters such as core diameter, winding height, and insulation distance. A model generator that drives templates to generate 3D solids with characteristic dimensions based on parameter mapping relationships; The intelligent assembler is used to automatically complete the spatial positioning of the body, oil tank, and casing according to the coordinate system preset by the skeleton model.

6. The design method of a three-dimensional design system for large transformer layout diagrams according to claim 1, characterized in that, Includes the following steps: S1: Construct a parameterized knowledge base through the layout diagram business table module to transform design specifications into parsable business rule tables; S2: The parameter input interface of the parametric design engine module receives design input parameters and performs parameter validation and conflict detection. S3: The parametric design engine module calls the parametric template to generate a 3D model, and at the same time, the view manager module generates engineering drawings. S4: Upon receiving a parameter modification instruction, the model is regenerated, updating the projection relationships of all associated views. The PLM system integration interface then uploads the updated model and engineering drawings.

7. The design method of a three-dimensional design system for large transformer layout diagrams according to claim 6, characterized in that, Step S1 includes the following steps: S1-1: Based on historical design data and industry standards, define the selection conditions, assembly priorities and dimensional logic relationships of each component, and complete the construction of a parametric knowledge base; S1-2: Store the assembly rules, dimensional logic rules, and template mapping relationships in an Excel spreadsheet, and import them into the system for parsing to obtain a parsable business rule table; The parsable business rule table includes: The assembly rule table is used to define the selection conditions and assembly priority of each component; Dimension logic table, used to establish mathematical relationships and constraints between parameters; Template mapping table, used to associate design parameters with template-driven variables.

8. The design method of a three-dimensional design system for large transformer layout diagrams according to claim 6, characterized in that, Step S2 includes the following steps: S2-1: Receive input parameters through the parameter input interface; The input parameters include: a core design parameter set containing diameter, window height, and lamination factor; a winding design parameter set containing axial height, radial dimension, and insulation thickness; and a tank design parameter set containing length, width, height reference dimensions, and wall thickness parameters. S2-2: Verify whether the input parameters are within the preset threshold range and check the matching between the winding size and the core window; S2-3: Call the interference check submodule to generate the main structure of the tank based on the reference dimensions of the tank's length, width and height, and verify whether the insulation distance between the oil tank and the bushing meets the safety requirements.

9. The design method of a three-dimensional design system for large transformer layout diagrams according to claim 6, characterized in that, Step S3 includes the following steps: S3-1: Based on the core parameters, drive the core template to generate the core solid model and automatically generate the coordinate system of the yoke section center; S3-2: Generate a coil solid model containing turn insulation structure based on winding parameters and locate it to the winding reference plane of the iron core frame; S3-3: Generate a solid model of the fuel tank based on the fuel tank parameters and the tank body template; generate tank body reinforcing ribs and radiator mounting surfaces based on the fuel tank wall thickness parameters; and verify the assembly spacing between the radiator and the sleeve through the interference check submodule. S3-4: Based on the spatial constraints of the general assembly skeleton model, automatically complete the assembly and positioning of the fuselage, oil tank and casing; and generate layout engineering drawings through the view manager module, including key dimension chains and enlarged views of parts; S3-5: Call the explicit and implicit rules and projection detail levels in the simplified representation rule base to generate multi-view engineering drawings; S3-6: The automatic annotation component captures images of the dimension annotations in the engineering drawing, compares the recognition results with the preset annotation strategy, and automatically adjusts the annotations to the compliant position if there is an offset.

10. A computer-readable storage medium storing a computer program, characterized in that, When the program is executed by the processor, it implements the design method of the three-dimensional design system for the layout diagram of a large transformer as described in any one of claims 6-9.

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