Simulation method, system, device, storage medium and program product of transformer coil
By constructing an overall model of the transformer coil and identifying key areas, and converting it into a conductor-level model for simulation, the problem of insufficient simulation accuracy in traditional modeling methods is solved, achieving higher design accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD
- Filing Date
- 2026-01-23
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional single-precision modeling methods cannot effectively simulate the complex structure of transformer coils, resulting in insufficient simulation accuracy and affecting the accuracy of transformer design and condition assessment.
By receiving the basic parameters of the transformer coil, an overall model is constructed, key areas are identified, converted into conductor-level models, and then merged into a hybrid coil model. Simulation is performed using circuit and electromagnetic field solvers to refine the simulation of the conductor and insulation structure in key areas.
It improves the accuracy and efficiency of transformer coil design, and the simulation results are more in line with actual working conditions, taking into account both the global magnetic field trend and the details of key areas, thus avoiding the waste of computing resources.
Smart Images
Figure CN122154600A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of transformer technology, and in particular to a method, system, device, storage medium, and program product for simulating transformer coils. Background Technology
[0002] Power transformers are core equipment in power grids, and their safe and stable operation is of paramount importance. The performance of a transformer, such as its short-circuit withstand capability, load loss, temperature rise, and vibration noise, directly depends on the behavior of its coils under complex electromagnetic forces and thermal effects. Therefore, accurate modeling and simulation of transformer coils are crucial steps in modern transformer design and condition assessment.
[0003] The transformer coil structure in related technologies is usually quite complex. It is both a whole electrical component and a precision mechanical structure composed of hundreds or even thousands of insulated wires (including transposed wires). This multi-layered structural characteristic presents a huge challenge for modeling.
[0004] Therefore, the simulation accuracy of traditional single-precision modeling methods is insufficient. Summary of the Invention
[0005] Therefore, it is necessary to provide a simulation method, system, device, storage medium, and program product for transformer coils to address the aforementioned technical problems.
[0006] Firstly, this application provides a simulation method for transformer coils, including:
[0007] Receive the basic parameters of the transformer coil to be simulated, and construct the overall model of the transformer coil based on the basic parameters;
[0008] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0009] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0010] In one embodiment, the overall model is transformed based on the distribution of the overall model's magnetic field to obtain a hybrid coil model, including:
[0011] Based on the distribution of the magnetic field in the overall model, key regions in the overall model are identified to obtain models for each region;
[0012] Convert each region model into a corresponding wire-level model;
[0013] By merging the individual conductor-level models into the overall model, a hybrid coil model is obtained.
[0014] In one embodiment, the individual conductor-level models are merged into the overall model to obtain a hybrid coil model, including:
[0015] Calculate the equivalent parameters of each conductor-level model;
[0016] The physical entities corresponding to each equivalent parameter are integrated into the corresponding regions of the overall model to obtain the hybrid coil model.
[0017] In one embodiment, the transformer coil simulation method further includes:
[0018] The total current of the hybrid coil model is calculated using a circuit solver.
[0019] The total current is uniformly applied to the equivalent cross-section of the hybrid coil model, and the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section are displayed.
[0020] And / or, apply the total current evenly to each conductor in the conductor-level model and display the current value on each conductor.
[0021] In one embodiment, the transformer coil simulation method further includes:
[0022] The overall induced electromotive force of the hybrid coil model was calculated using an electromagnetic field solver.
[0023] And / or, the current density distribution in each conductor in the conductor-level model is calculated using an electromagnetic field solver.
[0024] Secondly, this application also provides a simulation system for transformer coils, comprising:
[0025] The parameter initialization module is used to receive the basic parameters of the transformer coil to be simulated and to construct the overall model of the transformer coil based on the basic parameters.
[0026] The model generation module is used to transform the overall model based on the distribution of the overall magnetic field, and obtain a hybrid coil model.
[0027] The simulation module is used to perform simulations based on the hybrid coil model and obtain simulation results.
[0028] In one embodiment, the simulation system for the transformer coil further includes a circuit solver and an electromagnetic field solver.
[0029] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:
[0030] Receive the basic parameters of the transformer coil to be simulated, and construct the overall model of the transformer coil based on the basic parameters;
[0031] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0032] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0033] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:
[0034] Receive the basic parameters of the transformer coil to be simulated, and construct the overall model of the transformer coil based on the basic parameters;
[0035] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0036] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0037] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:
[0038] Receive the basic parameters of the transformer coil to be simulated, and construct the overall model of the transformer coil based on the basic parameters;
[0039] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0040] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0041] The aforementioned simulation method, system, equipment, storage medium, and program products for transformer coils receive the basic parameters of the transformer coil to be simulated and construct an overall model of the transformer coil based on these parameters. The overall model is then transformed according to the magnetic field distribution to obtain a hybrid coil model. This hybrid coil model is a combination of a conductor-level model and the overall model. The conductor-level model simulates each conductor and its insulation structure in key areas of the transformer coil. Key areas include the region with the strongest magnetic field, the region with the largest magnetic field gradient, and the region with weak structure. Simulation results are obtained based on the hybrid coil model. This method identifies key areas (the region with the strongest magnetic field, the region with the largest gradient, and the region with weak structure) through magnetic field characteristics and uses a conductor-level model to refine the simulation of the conductors and insulation structure in these areas. This ensures both local simulation accuracy and avoids the waste of computational resources caused by the high complexity of the full model. Furthermore, by performing phased modeling and simulation optimization of the coil, the accuracy and efficiency of transformer coil design are significantly improved. Simultaneously, the hybrid coil model combines the advantages of both the overall and local models, taking into account both the global magnetic field trend and the details of key areas in the simulation, making the simulation results more consistent with actual operating conditions and further improving the accuracy and efficiency of transformer coil design. Attached Figure Description
[0042] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0043] Figure 1 This is a diagram illustrating the application environment of a transformer coil simulation method in one embodiment.
[0044] Figure 2 This is one of the flowcharts illustrating a simulation method for a transformer coil in one embodiment;
[0045] Figure 3 This is a second schematic flowchart of a simulation method for a transformer coil in one embodiment;
[0046] Figure 4 This is a local conductor-level modeling diagram of the winding in one embodiment;
[0047] Figure 5 This is the third flowchart illustrating the simulation method for a transformer coil in one embodiment;
[0048] Figure 6 This is the fourth flowchart illustrating the simulation method for a transformer coil in one embodiment;
[0049] Figure 7 This is the fifth flowchart illustrating a simulation method for a transformer coil in one embodiment;
[0050] Figure 8 This is the sixth flowchart illustrating the simulation method for a transformer coil in one embodiment;
[0051] Figure 9 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation
[0052] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0053] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.
[0054] Power transformers are core equipment in power grids, and their safe and stable operation is of paramount importance. The performance of a transformer, such as its short-circuit withstand capability, load loss, temperature rise, and vibration noise, directly depends on the behavior of its coils under complex electromagnetic forces and thermal effects. Therefore, accurate modeling and simulation of transformer coils are crucial steps in modern transformer design and condition assessment.
[0055] The transformer coil structure in related technologies is usually quite complex. It is both a whole electrical component and a precision mechanical structure composed of hundreds or even thousands of insulated wires (including transposed wires). This multi-layered structural characteristic presents a huge challenge for modeling.
[0056] Therefore, the simulation accuracy of traditional single-precision modeling methods is insufficient.
[0057] In view of the above-mentioned technical problems, this application provides a simulation method for transformer coils. The following embodiments will specifically illustrate the simulation method for transformer coils.
[0058] The transformer coil simulation method provided in this application embodiment can be applied to, for example... Figure 1The simulation system for the transformer coil shown includes a parameter initialization module 101, a model generation module 102, and a simulation module 103. The parameter initialization module 101 includes a graphical interface 104; the model generation module 102 includes a circuit solver 105 and an electromagnetic field solver 106. Users can input the basic parameters of the transformer coil to be simulated through the graphical interface 104. The parameter initialization module 101 then generates the overall model of the coil. Next, the electromagnetic field solver 106 in the model generation module 102 performs magnetic field analysis on the overall model. Based on the analysis results, the model generation module 102 obtains specific models of key areas of the coil model and merges these specific models with the overall model to obtain a hybrid coil model. The circuit solver 105 and the electromagnetic field solver 106 are then used to analyze the hybrid model, which is then displayed in the simulation module 103.
[0059] This will be understood by someone skilled in the art. Figure 1 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.
[0060] In one exemplary embodiment, such as Figure 2 As shown, a simulation method for transformer coils is provided, which can be applied to... Figure 1 The following explanation uses a simulation system for transformer coils as an example, including:
[0061] S201 receives the basic parameters of the transformer coil to be simulated and constructs an overall model of the transformer coil based on the basic parameters.
[0062] The basic parameters include the global dimensions, conductor specifications, number of turns, and transposition method of the transformer coil to be simulated; the overall model is a macroscopic annular shell, which can be used for subsequent rapid calculation of the global magnetic field by computer equipment.
[0063] In this embodiment, when simulating a transformer coil, the user can input the global dimensions (such as the outer diameter, inner diameter, and height of the coil), conductor specifications (such as the material, cross-sectional area, width, thickness, and insulation layer thickness), number of turns, and transposition method of the transformer coil to be simulated through the graphical interface in the parameter initialization module. After receiving the basic parameters (such as global dimensions and conductor specifications) of the transformer coil to be simulated input by the user, the parameter initialization module can automatically generate an overall model of the coil based on these basic parameters. This model is a macroscopic annular shell, which can be used for the subsequent rapid calculation of the global magnetic field by the simulation system.
[0064] S202, based on the distribution of the magnetic field of the overall model, the overall model is transformed to obtain the hybrid coil model.
[0065] The hybrid coil model consists of a conductor-level model and an overall model. The conductor-level model is used to simulate each conductor and its insulation structure in the key areas of the transformer coil. The key areas include the areas with the strongest magnetic field, the areas with the largest magnetic field gradient, and the areas with weakest structures in the transformer coil.
[0066] In this embodiment, the simulation system initiates a model generation module based on the overall coil model. This module uses an electromagnetic field solver to perform preliminary static magnetic field or frequency-domain eddy current field calculations on the overall coil model, thereby obtaining a spatial distribution cloud map of the magnetic field in the overall coil region. This cloud map not only displays the distribution of the magnetic field in the overall coil region (e.g., concentrated distribution areas, weak field areas, and gradient abrupt change areas), but also includes the amplitude and direction distribution of the magnetic induction intensity, as well as the spatial gradient information of the magnetic field intensity. Subsequently, based on this spatial distribution cloud map, the simulation system uses a region identification algorithm to automatically identify key regions of the overall coil model based on the magnetic field gradient threshold, the peak percentage of the magnetic induction intensity, and areas of interest in practical engineering applications (e.g., coil ends or inter-turn gaps). The identified key regions are then refined to obtain corresponding refined conductor-level models. Finally, the simulation system merges the refined conductor-level models of the key regions with the overall model to obtain a hybrid coil model.
[0067] S203, simulation was performed based on the hybrid coil model, and simulation results were obtained.
[0068] In this embodiment, after obtaining the hybrid coil model, the user can simulate the hybrid coil model in the simulation system and view the simulation results at multiple scales on the display interface. The simulation results include the macroscopic magnetic field and temperature field of the entire transformer coil, the local model of the key area of the transformer coil, the current density vector diagram of each conductor in the local model (clearly showing the distribution and flow direction of the current in the conductor), the loss distribution bar chart, and the contact stress cloud map between the conductors.
[0069] The above-described transformer coil simulation method receives the basic parameters of the transformer coil to be simulated and constructs an overall model of the transformer coil based on these parameters. The overall model is then transformed according to the magnetic field distribution to obtain a hybrid coil model. This hybrid coil model is a combination of a conductor-level model and the overall model. The conductor-level model simulates each conductor and its insulation structure in key areas of the transformer coil. Key areas include the region with the strongest magnetic field, the region with the largest magnetic field gradient, and the region with weak structure. Simulation is performed based on the hybrid coil model to obtain simulation results. This method identifies key areas (the region with the strongest magnetic field, the region with the largest gradient, and the region with weak structure) through magnetic field characteristics and uses a conductor-level model to refine the simulation of the conductors and insulation structure in these areas. This ensures both local simulation accuracy and avoids the waste of computational resources caused by the high complexity of the full model. Furthermore, by performing phased modeling and simulation optimization of the coil, the accuracy and efficiency of transformer coil design are significantly improved. Simultaneously, the hybrid coil model combines the advantages of both the overall and local models, taking into account both the global magnetic field trend and the details of key areas in the simulation, making the simulation results more consistent with actual working conditions and further improving the accuracy and efficiency of transformer coil design.
[0070] In one exemplary embodiment, such as Figure 3 As shown, the "model transformation of the overall model based on the distribution of the overall model's magnetic field to obtain a hybrid coil model" in S202 above includes:
[0071] S301. Based on the distribution of the magnetic field in the overall model, key regions in the overall model are identified to obtain models for each region.
[0072] In this embodiment, after obtaining the magnetic field spatial distribution cloud map of the entire coil region using an electromagnetic field solver (such as a finite element method or boundary element method solver), the simulation system identifies key regions in the overall model based on the magnetic field distribution in the cloud map. For example, the region with the strongest magnetic field, such as the end of the coil, is prone to significant skin effect due to changes in the current path, resulting in a high local current density. The region with the largest magnetic field gradient, such as the ampere-turn imbalance, has a high rate of change of magnetic field, resulting in a significant proximity effect and easily causing electromagnetic interference between coils. At the same time, combined with the geometric structure and design characteristics of the coil, the simulation system also classifies the preset structurally weak regions as key regions in the overall model, such as the switching point and voltage regulation segment. These regions are prone to becoming potential stress concentration points under electromagnetic force because the mechanical structure in actual applications is relatively complex and may have discontinuities. After identifying the key regions (including the region with the strongest magnetic field, the region with the largest magnetic field gradient, and the preset structurally weak regions), the simulation system can automatically extract the geometric parameters and electromagnetic-structural coupling boundary conditions of each key region to generate models of each key region.
[0073] S302 converts each region model into a corresponding wire-level model.
[0074] In this embodiment, the simulation system replaces the regional models with refined conductor-level models. During this process, the simulation system, through parametric scripts, first automatically generates a three-dimensional entity of each conductor within the local area (i.e., the critical area) based on user-inputted design parameters (such as conductor diameter, material, and spacing requirements) or relevant industry standards (such as the arrangement guidelines for power transformer windings, the winding standards for motor stator coils, etc.), and accurately models the spatial morphology of the conductor insulation layer (e.g., ...). Figure 4 (As shown). The arrangement of the conductors (such as radial-to-radial layered arrangement in electrical windings, axial parallel arrangement in transmission lines, etc.) is generated strictly according to preset rules. Finally, the simulation system converts each region model into a corresponding conductor-level model.
[0075] S303 integrates the individual conductor-level models into the overall model to obtain a hybrid coil model.
[0076] In this embodiment, after obtaining the conductor-level models, the simulation system performs impedance analysis on each conductor-level model to accurately extract key equivalent electrical parameters (such as equivalent AC resistance, equivalent inductance, equivalent capacitance, high-frequency loss factor, etc.). These parameters can effectively characterize the current distribution, magnetic field coupling, and energy loss characteristics of the conductor under different operating conditions. Subsequently, the key equivalent electrical parameters are assigned to the corresponding region of the overall model to obtain the hybrid coil model.
[0077] In one exemplary embodiment, such as Figure 5 As shown, the phrase "integrating the individual conductor-level models into the overall model to obtain a hybrid coil model" in S303 above includes:
[0078] S401, calculate the equivalent parameters of each conductor-level model.
[0079] The equivalent parameters include equivalent resistance and equivalent inductance.
[0080] In this embodiment of the application, the simulation system performs rapid frequency domain impedance analysis on the conductor-level model. By solving the electromagnetic field of the local region, the equivalent AC resistance and equivalent inductance of each conductor-level coil model at high frequency are calculated.
[0081] S402, the physical entities corresponding to each equivalent parameter are integrated into the corresponding regions of the overall model to obtain the hybrid coil model.
[0082] In this embodiment, after obtaining the equivalent AC resistance and equivalent inductance of each conductor-level coil model at high frequency, the simulation system assigns the physical entities corresponding to each equivalent parameter (equivalent AC resistance and equivalent inductance) to the corresponding regions in the overall model. That is, the material properties of the key regions in the overall model are updated from simple copper or aluminum to equivalent materials containing fine eddy current and proximity effect information. Through this equivalent assignment, the simulation system condenses the fine physical effects into a set of equivalent parameters and embeds them into the overall model, resulting in a hybrid coil model.
[0083] In one exemplary embodiment, such as Figure 6 As shown, the simulation method for the transformer coil described above also includes:
[0084] S501 uses a circuit solver to calculate the total current of the hybrid coil model.
[0085] In this embodiment of the application, the simulation system uses a circuit solver to calculate the total current in the hybrid coil model. The circuit solver integrates key parameters such as the equivalent material parameters (equivalent material containing fine eddy current and proximity effect information) and the number of coil turns in each region of the hybrid coil model through the built-in electromagnetic coupling algorithm, solves the distribution law and dynamic changes of the current in the hybrid coil model, and finally obtains the total current value in the hybrid coil model.
[0086] S502 applies the total current evenly to the equivalent cross-section of the hybrid coil model and displays the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section.
[0087] Here, the cross section refers to the equivalent cross section of the overall model region in the hybrid coil model, which is perpendicular to the direction of current flow.
[0088] In this embodiment of the application, the simulation system uses a circuit solver to calculate the total current of the hybrid coil model and uniformly applies it to the equivalent transverse cross section of the overall model region of the hybrid coil model. The simulation system's simulation module then performs analysis on the cross section and the corresponding current value of the hybrid coil model.
[0089] S503, and / or, applies the total current evenly to each conductor in the conductor-level model and displays the current value on each conductor.
[0090] In this embodiment, the simulation system can also uniformly load the total current onto each conductor in the conductor-level model according to the parallel connection of the conductors, and display the current value on each conductor.
[0091] In one exemplary embodiment, such as Figure 7 As shown, the simulation method for the transformer coil described above also includes:
[0092] S601 uses an electromagnetic field solver to calculate the overall induced electromotive force of the hybrid coil model.
[0093] In this embodiment, the simulation system uses an electromagnetic field solver to analyze the electromagnetic characteristics of the overall structure of the hybrid coil model, obtaining the total flux linkage of the hybrid coil model. Subsequently, based on the total flux linkage of the hybrid coil model, combined with parameters such as the number of turns of the coil winding and the rate of change of flux linkage over time, the simulation system can finally calculate the overall induced electromotive force of the coil winding in the hybrid coil model.
[0094] S602, and / or, using an electromagnetic field solver to calculate the current density distribution in each conductor of the conductor-level model.
[0095] In this embodiment of the application, the simulation system can also use an electromagnetic field solver to analyze the conductor-level model. That is, the simulation system can use the electromagnetic field solver to calculate the current density distribution in each conductor in the conductor-level model. During the calculation process, the simulation system will also fully consider the effects of skin effect and proximity effect, thereby ensuring the accuracy and reliability of the calculation results.
[0096] In summary, based on all the above embodiments, a simulation method for transformer coils is also provided, such as... Figure 8 As shown:
[0097] S701 receives the basic parameters of the transformer coil to be simulated and constructs the overall model of the transformer coil based on the basic parameters.
[0098] S702, Based on the distribution of the magnetic field of the overall model, the key areas in the overall model are identified to obtain the models of each area;
[0099] S703 converts the models of each region into corresponding wire-level models;
[0100] S704, calculate the equivalent parameters of each conductor-level model;
[0101] S705, integrate the physical entities corresponding to each equivalent parameter into the corresponding regions of the overall model to obtain the hybrid coil model;
[0102] S706, the total current of the hybrid coil model is calculated using the circuit solver;
[0103] S707, for the current value of the overall model, execute S708; for the current value of the conductor-level model, execute S709.
[0104] S708 applies the total current evenly to the equivalent cross-section of the hybrid coil model and displays the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section.
[0105] S709 evenly applies the total current to each conductor in the conductor-level model and displays the current value on each conductor.
[0106] S710, for the induced electromotive force of the overall model, execute S711; for the current density distribution of the wire-level model, execute S712.
[0107] S711 applies the total current evenly to the equivalent cross-section of the hybrid coil model and displays the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section.
[0108] S712 evenly applies the total current to each conductor in the conductor-level model and displays the current value on each conductor.
[0109] S713 was simulated based on a hybrid coil model, and the simulation results were obtained.
[0110] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.
[0111] Based on the same inventive concept, this application also provides a transformer coil simulation system for implementing the above-described transformer coil simulation method. The solution provided by this system is similar to the implementation described in the above method; therefore, the specific limitations of the one or more transformer coil simulation system embodiments provided below can be found in the limitations of the transformer coil simulation method described above, and will not be repeated here.
[0112] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 9 As shown.
[0113] The computer device includes a processor, memory, input / output interfaces, a communication interface, a display unit, and an input device. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When executed by the processor, the computer program implements a method for simulating a transformer coil. The display unit is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display (LCD) or an e-ink display, and the output device can be a touch layer covering the display screen.
[0114] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:
[0115] Receive the basic parameters of the transformer coil to be simulated, and construct the overall model of the transformer coil based on the basic parameters;
[0116] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0117] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0118] In one embodiment, the processor, when executing a computer program, also performs the following steps:
[0119] Based on the distribution of the magnetic field in the overall model, key regions in the overall model are identified to obtain models for each region;
[0120] Convert each region model into a corresponding wire-level model;
[0121] By merging the individual conductor-level models into the overall model, a hybrid coil model is obtained.
[0122] In one embodiment, the processor, when executing a computer program, also performs the following steps:
[0123] Calculate the equivalent parameters of each conductor-level model;
[0124] The physical entities corresponding to each equivalent parameter are integrated into the corresponding regions of the overall model to obtain the hybrid coil model.
[0125] In one embodiment, the processor, when executing a computer program, also performs the following steps:
[0126] The total current of the hybrid coil model is calculated using a circuit solver.
[0127] The total current is uniformly applied to the equivalent cross-section of the hybrid coil model, and the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section are displayed.
[0128] And / or, apply the total current evenly to each conductor in the conductor-level model and display the current value on each conductor.
[0129] In one embodiment, the processor, when executing a computer program, also performs the following steps:
[0130] The overall induced electromotive force of the hybrid coil model was calculated using an electromagnetic field solver.
[0131] And / or, the current density distribution in each conductor in the conductor-level model is calculated using an electromagnetic field solver.
[0132] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:
[0133] The basic parameters of the transformer coil to be simulated are determined, and an overall model of the transformer coil is constructed based on the basic parameters.
[0134] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0135] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0136] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0137] Based on the distribution of the magnetic field in the overall model, key regions in the overall model are identified to obtain models for each region;
[0138] Convert each region model into a corresponding wire-level model;
[0139] By merging the individual conductor-level models into the overall model, a hybrid coil model is obtained.
[0140] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0141] Calculate the equivalent parameters of each conductor-level model;
[0142] The physical entities corresponding to each equivalent parameter are integrated into the corresponding regions of the overall model to obtain the hybrid coil model.
[0143] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0144] The total current of the hybrid coil model is calculated using a circuit solver.
[0145] The total current is uniformly applied to the equivalent cross-section of the hybrid coil model, and the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section are displayed.
[0146] And / or, apply the total current evenly to each conductor in the conductor-level model and display the current value on each conductor.
[0147] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0148] The overall induced electromotive force of the hybrid coil model was calculated using an electromagnetic field solver.
[0149] And / or, the current density distribution in each conductor in the conductor-level model is calculated using an electromagnetic field solver.
[0150] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:
[0151] The basic parameters of the transformer coil to be simulated are determined, and an overall model of the transformer coil is constructed based on the basic parameters.
[0152] Based on the distribution of the magnetic field in the overall model, the overall model is transformed to obtain a hybrid coil model;
[0153] Simulations were performed based on the hybrid coil model, and the simulation results were obtained.
[0154] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0155] Based on the distribution of the magnetic field in the overall model, key regions in the overall model are identified to obtain models for each region;
[0156] Convert each region model into a corresponding wire-level model;
[0157] By merging the individual conductor-level models into the overall model, a hybrid coil model is obtained.
[0158] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0159] Calculate the equivalent parameters of each conductor-level model;
[0160] The physical entities corresponding to each equivalent parameter are integrated into the corresponding regions of the overall model to obtain the hybrid coil model.
[0161] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0162] The total current of the hybrid coil model is calculated using a circuit solver.
[0163] The total current is uniformly applied to the equivalent cross-section of the hybrid coil model, and the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section are displayed.
[0164] And / or, apply the total current evenly to each conductor in the conductor-level model and display the current value on each conductor.
[0165] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:
[0166] The overall induced electromotive force of the hybrid coil model was calculated using an electromagnetic field solver.
[0167] And / or, the current density distribution in each conductor in the conductor-level model is calculated using an electromagnetic field solver.
[0168] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.
[0169] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.
[0170] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.
Claims
1. A simulation method for transformer coils, characterized in that, The method includes: Receive the basic parameters of the transformer coil to be simulated, and construct the overall model of the transformer coil based on the basic parameters; The overall model is transformed based on the magnetic field distribution of the overall model to obtain a hybrid coil model. The hybrid coil model is a combination of the conductor-level model and the overall model. The conductor-level model is used to simulate each conductor and its insulation structure in the key areas of the transformer coil. The key areas include the area with the strongest magnetic field, the area with the largest magnetic field gradient, and the area with the weakest structure in the transformer coil. Simulations were performed based on the hybrid coil model, and simulation results were obtained.
2. The method according to claim 1, characterized in that, The step of transforming the overall model based on the magnetic field distribution of the overall model to obtain a hybrid coil model includes: Based on the distribution of the magnetic field in the overall model, key regions in the overall model are identified to obtain models for each region; Convert each of the aforementioned region models into a corresponding wire-level model; The individual conductor-level models are merged into the overall model to obtain the hybrid coil model.
3. The method according to claim 2, characterized in that, The process of fusing each of the conductor-level models into the overall model to obtain the hybrid coil model includes: Calculate the equivalent parameters of each of the aforementioned conductor-level models; the equivalent parameters include equivalent resistance and equivalent inductance; The physical entities corresponding to each of the equivalent parameters are integrated into the corresponding regions of the overall model to obtain the hybrid coil model.
4. The method according to any one of claims 1-3, characterized in that, The method further includes: The total current of the hybrid coil model is calculated using a circuit solver. The total current is uniformly applied to the equivalent cross-section of the hybrid coil model, and the equivalent cross-section of the hybrid coil model and the current value corresponding to the equivalent cross-section are displayed. And / or, uniformly apply the total current to each conductor in the conductor-level model and display the current value on each conductor.
5. The method according to any one of claims 1-3, characterized in that, The method further includes: The overall induced electromotive force of the hybrid coil model is calculated using an electromagnetic field solver. And / or, the current density distribution in each conductor in the conductor-level model is calculated using an electromagnetic field solver.
6. A simulation system for transformer coils, characterized in that, The system includes: The parameter initialization module is used to receive the basic parameters of the transformer coil to be simulated and to construct the overall model of the transformer coil based on the basic parameters. The model generation module is used to perform model transformation on the overall model based on the distribution of the magnetic field of the overall model to obtain a hybrid coil model; The simulation module is used to perform simulations based on the hybrid coil model and obtain simulation results.
7. The system according to claim 6, characterized in that, The system also includes: a circuit solver and an electromagnetic field solver; The circuit solver is used to calculate the total current of the hybrid coil model; The electromagnetic field solver is used to calculate the overall induced electromotive force of the hybrid coil model; The electromagnetic field solver is also used to calculate the current density distribution in each conductor in the conductor-level model.
8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.
10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.