Transformer continuous winding parameterized modeling method, device and computer equipment

Abstract

The application relates to a transformer continuous winding parameterized modeling method and device, computer equipment, a storage medium and a program product. The method comprises the following steps: acquiring at least one double-line pie model, the double-line pie model acquisition step comprising the following steps: reading parameter data of a continuous winding and initializing the parameter data, constructing a positive pie model and a reverse pie model based on pie internal wire turn connection schemes and wire turn start and end coordinates determined according to the parameter data; correcting model coordinates according to the parameter data and confirming an inter-pie arc connection scheme; acquiring a first wire turn arc model to connect two models based on the corrected coordinates and the arc connection scheme, and obtaining a double-line pie model; acquiring at least one second wire turn arc model to connect at least one double-line pie model, and acquiring a single-coil model; and repeatedly executing the above steps to obtain at least one single-coil model, which is used to construct a transformer continuous winding model. The method can be used for parameterized modeling of a transformer continuous winding.

Description

Technical Field

[0001] This application relates to the field of digital design and simulation technology of power equipment, and in particular to a parametric modeling method, device, computer equipment, computer-readable storage medium and computer program product for continuous winding of transformer. Background Technology

[0002] As a core component of the power system, the performance of power transformers directly impacts the security and stability of the power grid. In the planning, fault handling, and equipment optimization of power systems, the analysis of the electromagnetic characteristics, mechanical deformation, and thermal effects of the pancake windings of power transformers all rely on high-precision simulation models. Among these, continuous windings, as one of the most widely used winding types in power transformers, are extensively applied in high-voltage transmission scenarios.

[0003] However, there are three types of modeling methods in traditional technology. One type involves measuring the actual geometric parameters of the winding and combining them with computer-aided design to construct a three-dimensional solid model. However, this method relies on manual parameter calibration, has poor adaptability to complex structures, and is difficult to efficiently and reliably construct a high-precision model that can be used for complex simulations. Another type of method uses lumped parameter models or distributed parameter models, and uses experimental data or optimization algorithms to fit frequency response analysis curves to reflect electromagnetic characteristics. However, these models are difficult to directly relate to the physical structure of the winding, and the computational complexity of frequency-varying parameters is also high at high frequencies. The last type uses Windows rendering technology to achieve non-destructive visualization of the winding structure, generating two-dimensional / three-dimensional layouts of coils and coil discs through mathematical models. This method also relies on manual parameter input and has limited support for complex transposition rules.

[0004] Therefore, traditional modeling methods for continuous transformer windings rely on manual parameter input, resulting in weak parameter interpretability, insufficient high-frequency adaptability, and coarse, inefficient model structures. Consequently, a parametric modeling method for continuous transformer windings is urgently needed to address these issues. Summary of the Invention

[0005] Therefore, it is necessary to provide a method, apparatus, computer equipment, computer-readable storage medium, and computer program product for parametric modeling of continuous transformer windings to address the aforementioned technical problems.

[0006] Firstly, this application provides a parametric modeling method for continuous windings of a transformer, including:

[0007] At least one double-circuit pie model is obtained. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0008] Based on the coordinates of at least one double-line pie model and the arc connection scheme, obtain at least one second-line turn arc model; use at least one second-line turn arc model to connect at least one double-line pie model to obtain a single-coil model;

[0009] Repeat the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model based on at least one single-coil model. The multi-coil model is a transformer continuous winding model.

[0010] In one embodiment, before initializing the read parameter data, the method further includes:

[0011] Identify the coil-level, wire-level, and coil-level parameter data of any set of reverse and positive discs from the read parameter data;

[0012] Identify the length of the firing code in the wire-level parameter data to confirm that the read parameter data is the parameter data of the transformer continuous winding;

[0013] The read parameter data is verified according to the parameter verification principle.

[0014] In one embodiment, the read parameter data is initialized, and based on the initialized parameter data, the in-pane turn connection scheme and the start and end coordinates of the turn are determined; the turn curve trajectory is constructed according to the turn start and end coordinates; and the turn curve model is constructed based on the in-pane turn connection scheme and the turn curve trajectory, including:

[0015] Based on the read parameter data, calculate the radian corresponding to each gear and the radius of the starting firing point for each turn, and define and number the main lines of the positive and negative cakes to obtain the initialized parameter data;

[0016] Based on the initialized parameter data, determine the start and end coordinates of the turn and correct the radian coordinates of the end point of the last turn;

[0017] Based on the start and end coordinates of the line turn and the radian coordinates of the termination point of the last turn, a line turn curve trajectory is constructed.

[0018] Based on the number of wires wound in parallel and the total number of turns in the coil in the initialized parameter data, find the connection scheme of the coil turns in the coil;

[0019] Referring to the aforementioned in-circuit connection scheme, connect the curve trajectory of the in-circuit wires;

[0020] The cross section corresponding to the connected turn curve trajectory is swept along the trajectory to construct the turn curve model.

[0021] In one embodiment, based on the initialized parameter data, the coordinates of the pie chart and the inverted pie chart are corrected, and the arc connection scheme between the pie chart and the inverted pie chart is confirmed, including:

[0022] Based on the read parameter data, correct the radian coordinates of the start and end points of all lines in the positive pie model and the ordinate coordinates of the start and end points of all lines in the negative pie model, and confirm the arc connection scheme between the positive and negative pie models.

[0023] In one embodiment, at least one second-line-turn arc model is obtained based on the coordinates and arc connection scheme of at least one double-line pie model; a single-coil model is obtained by connecting at least one second-line-turn arc model with at least one double-line pie model, including:

[0024] Based on the read parameter data, correct the number of steps and the ordinate of at least one double-line pie model; construct the line-turn curve trajectory based on the number of steps and the ordinate of at least one double-line pie model; sweep the cross section corresponding to the line-turn arc trajectory along the trajectory to obtain at least one line-turn arc model.

[0025] A single-coil model is obtained by connecting at least one second-line arc model with at least one double-line disc model.

[0026] In one embodiment, based on the read parameter data, a multi-coil model is constructed based on at least one single-coil model, including:

[0027] The coordinates of the start and end points of all coils are converted from cylindrical coordinates to rectangular coordinates, with the middle phase, center point and upper surface of the lower yoke of any single coil model as the origin of the coordinate axes;

[0028] Based on the read parameter data, at least one single-coil model is translated with reference to the origin of the coordinate axis to obtain a multi-coil model.

[0029] Secondly, this application also provides a parametric modeling device for continuous windings of transformers, comprising:

[0030] An acquisition module is used to acquire at least one double-circuit pie model. The acquisition steps for the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0031] A connection module is used to obtain at least one second-line-turn arc model based on the coordinates of at least one double-line pie model and the arc connection scheme; and to connect at least one double-line pie model using at least one second-line-turn arc model to obtain a single-coil model.

[0032] The module is used to repeatedly execute the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, a multi-coil model is constructed, which is a transformer continuous winding model.

[0033] 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:

[0034] At least one double-circuit pie model is obtained. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0035] Based on the coordinates of at least one double-line pie model and the arc connection scheme, obtain at least one second-line turn arc model; use at least one second-line turn arc model to connect at least one double-line pie model to obtain a single-coil model;

[0036] Repeat the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model based on at least one single-coil model. The multi-coil model is a transformer continuous winding model.

[0037] 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:

[0038] At least one double-circuit pie model is obtained. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0039] Based on the coordinates of at least one double-line pie model and the arc connection scheme, obtain at least one second-line turn arc model; use at least one second-line turn arc model to connect at least one double-line pie model to obtain a single-coil model;

[0040] Repeat the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model based on at least one single-coil model. The multi-coil model is a transformer continuous winding model.

[0041] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0042] At least one double-circuit pie model is obtained. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0043] Based on the coordinates of at least one double-line pie model and the arc connection scheme, obtain at least one second-line turn arc model; use at least one second-line turn arc model to connect at least one double-line pie model to obtain a single-coil model;

[0044] Repeat the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model based on at least one single-coil model. The multi-coil model is a transformer continuous winding model.

[0045] The aforementioned parametric modeling method, apparatus, computer equipment, computer-readable storage medium, and computer program product for continuous transformer windings acquire at least one double-piece model. The steps for acquiring the double-piece model include: reading the turn-level parameter data, piece-level parameter data, and coil-level parameter data of the continuous transformer winding; initializing the read parameter data; determining the turn connection scheme and turn start-end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start-end coordinates; constructing a turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive piece model and a negative piece model based on the turn curve model; correcting the coordinates of the positive and negative piece models based on the initialized parameter data, and confirming the arc between the positive and negative piece models. Connection scheme; based on the corrected coordinates and arc connection scheme, construct the turn arc trajectory; construct the first turn arc model based on the turn arc trajectory; connect the positive and negative pancake models using the first turn arc model to obtain the double-turn pancake model; the above process of obtaining the double-turn pancake model fully considers the complex structure of the transformer continuous winding from the turn level to the coil level, obtains the parameters of the continuous winding model under this complex structure, such as the turn level parameter data, pancake level parameter data and coil level parameter data, and initializes them, determines the turn connection scheme and the start and end coordinates of the turn, and constructs the turn curve trajectory and turn curve model, corrects the model coordinates and confirms the arc connection scheme, so that the constructed double-turn pancake model is more accurate and reliable, and has stronger interpretability. Furthermore, this application obtains at least one second-turn arc model based on the coordinates of at least one double-circuit pie model and the arc connection scheme; connects at least one double-circuit pie model using at least one second-turn arc model to obtain a single-coil model; repeats the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model; and constructs a multi-coil model based on the read parameter data, which is a transformer continuous winding model. The above scheme refines the transformer continuous winding model to the turn level, enabling the model to adapt to the high computational complexity of frequency-varying parameters at high frequencies, improving the model's practicality, and achieving efficient and accurate complete parametric modeling of the transformer continuous winding. Attached Figure Description

[0046] 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.

[0047] Figure 1This is a flowchart illustrating a parametric modeling method for continuous transformer windings in one embodiment.

[0048] Figure 2 An example diagram of the arrangement order in each pie space of the line turn level parameters is given in one embodiment;

[0049] Figure 3 This is an example diagram showing the arrangement order and wire numbering within the reverse pie space in one embodiment;

[0050] Figure 4 This is an example diagram showing the arrangement order and wire numbering within the pie space in one embodiment;

[0051] Figure 5 This is a schematic diagram of the inter-panel connection method when the wire transposition method is 1;

[0052] Figure 6 This is a schematic diagram of the inter-panel connection method when the wire transposition method is 2;

[0053] Figure 7 This is a schematic diagram of the inter-diameter connection method when the conductor transposition method and the number of parallel windings of the conductor are the same;

[0054] Figure 8 This is a flowchart illustrating a parametric modeling method for continuous windings of a transformer in a specific embodiment.

[0055] Figure 9 This is a structural block diagram of a parametric modeling device for continuous transformer windings in one embodiment;

[0056] Figure 10 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0057] 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.

[0058] 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.

[0059] In one exemplary embodiment, such as Figure 1As shown, a parametric modeling method for continuous windings of a transformer is provided. Taking the application of this method to a terminal as an example, the terminal can be, but is not limited to, various personal computers, laptops, smartphones, tablets, drones, low-altitude aircraft, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, projection devices, etc. Portable wearable devices can include smartwatches, smart bracelets, head-mounted devices, etc. Head-mounted devices can be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc. The method includes steps 102 to 106. Wherein:

[0060] Step 102: Obtain at least one double-circuit pie model. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data; determining the turn connection scheme and turn start-end coordinates within the pie model based on the initialized parameter data; constructing the turn curve trajectory based on the turn start-end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0061] The continuous winding of the transformer consists of at least one coil, which in turn consists of at least one double-circuit coil. Each double-circuit coil comprises a positive coil and a negative coil, and each coil consists of at least one turn of wire wound continuously. Continuous winding refers to using one or more parallel wires to wind continuously, turn by turn, starting from one coil. After winding one coil, a transition wire is used to move to the next coil, continuing until the entire winding is completed. Electrically, the turns and coils are simply connected in series. The double-circuit coil model is the model after connecting the positive and negative coils; the first turn arc model is used to connect the wire exits between the positive and negative coil models. The positive coil starts at the innermost coil and ends at the outermost coil; the negative coil starts at the outermost coil and ends at the innermost coil. The centers of each turn in the double-circuit coil model are coaxial, and their coordinates are (0, 0, coil spacing) or (0, 0, 0). The coil curve trajectory is used to describe the distribution of wire coils within a coil disc; the coil arc trajectory is used to describe the connection of wires between coil discs; the coil curve model is a three-dimensional model formed by sweeping along the trajectory of the coil curve trajectory, and the coil curve trajectory of one coil can form a coil curve model; the coil arc model is a three-dimensional model formed by sweeping along the trajectory of the coil arc trajectory.

[0062] Optionally, the coil-level parameter data is a set of parameter data describing the continuous winding coil-level structure of the transformer, specifically including: the number of single-phase coils, the number of phases, the spacing between the main core columns, the inner diameter of the coil, the outer diameter of the coil, the distance from the bottom of the coil to the upper surface of the lower yoke, the coil height, the number of coils, the spacing between coils, the coil height, and the number of taps. The coil-level parameter data is a set of parameter data describing the continuous winding coil-level structure of the transformer, specifically including: the continuous winding code (i.e., the conductor transposition method, the number of turns of the parallel-wound conductors, the number of parallel-wound conductors), and the number of taps removed. The turn-level parameter data is a set of parameter data describing the continuous winding turn-level structure of the transformer, specifically including: the arrangement order within each coil space, the radial and axial dimensions, and the material parameters.

[0063] Specifically, the number of phases refers to the number of phases in the AC power system to which the transformer is designed to be connected; the number of single-phase coils is the total number of coils in each phase winding of the transformer; the core column spacing refers to the horizontal distance between the axes of the core columns of two adjacent phases; the coil inner diameter is the diameter of the inner cylindrical surface of the coil after winding, which is the minimum diameter that the winding can fit into the core column, and must be greater than the outer diameter of the core column to ensure sufficient insulation distance; the coil outer diameter refers to the diameter of the outer cylindrical surface of the coil after winding; the distance from the bottom of the coil to the upper surface of the lower yoke refers to the vertical distance from the bottom of the lowest coil to the upper surface of the lower yoke of the transformer; the coil height is the total axial height of the winding from the bottom of the lowest coil to the top of the highest coil; the coil spacing is the axial distance between two adjacent coils; the coil height is the axial height of a single coil; and the number of spans refers to the number of spans that each coil should be electrically divided into.

[0064] Furthermore, the arrangement order within each pie space should be based on... Figure 2 The example is given in the following format. Each cell code represents a type of material, and the table from left to right corresponds to the material arrangement of the coil from the inside out. The first character of each cell code indicates the material type; the materials within the pie are the main line (w), shaft oil channel (c), and filler (f). Figure 2 Based on this, the radial and axial dimensions of the corresponding material, as well as the material parameters, should also be provided. Material parameters include relative permittivity, relative permeability, and electrical conductivity. The arrangement order within each disc space should correspond one-to-one with the parameters of the corresponding material, as shown in the example table in Table 1.

[0065] Table 1

[0066]

[0067] The number of turns in continuous winding refers to the rule or sequence by which the conductor switches from one turn to another when transitioning from one turn to the next in a coil with multiple parallel conductors. The calculation formula is as follows:

[0068]

[0069] The code for continuous firing is:

[0070]

[0071] in, The number represents the transposition method of the conductor. If all conductors are transposed, then... Equal to the number of turns; The number of turns of the wire wound together; The number of wires wound together; Equal to the number of turns; The symbol “” is a pre-defined symbol and has no real meaning.

[0072] For example, the system reads the turn-level, disc-level, and coil-level parameter data of the transformer's continuous winding uploaded by the user. It calculates the corresponding radian for each stage and the radius of the starting firing point for each turn based on the read parameter data, and defines and numbers the conductors to complete initialization. Based on the initialized parameter data, it determines the turn-level connection scheme and the start and end coordinates of the turns. According to the turn-level start and end coordinates, it confirms the turn curve trajectory; based on the turn-level connection scheme within the disc, it confirms the connection scheme for the turn curve trajectory and connects the turn curve trajectories. The cross-section corresponding to the connected turn curve trajectory is swept along the trajectory to obtain the turn curve model.

[0073] Further, the steps for constructing the line-turn curve model are repeated to obtain positive and negative pie charts. A positive pie chart is one where the starting point of the line-turn curve model is at the innermost turn and the ending point is at the outermost turn; a negative pie chart is one where the starting point is at the outermost turn and the ending point is at the innermost turn. Based on the initialized parameter data, the coordinates of the positive and negative pie chart models are corrected, and the arc connection scheme between them is confirmed. Based on the corrected coordinates and the arc connection scheme, a line-turn arc trajectory is constructed. The cross-section corresponding to the line-turn arc trajectory is swept along the trajectory to obtain the first line-turn arc model. The first line-turn arc model is used to connect the positive and negative pie chart models to obtain a double-line pie chart model.

[0074] Step 104: Based on the coordinates of at least one double-circuit pie model and the arc connection scheme, obtain at least one second-circuit arc model; connect at least one double-circuit pie model using at least one second-circuit arc model to obtain a single-coil model.

[0075] The second coil arc model is used to connect the wire exits between the two double coil models. The center point coordinates of the uppermost coil of the single coil model are (0, 0, coil height - coil height), and its starting winding position is 1. The center point coordinates of the lowermost coil of the single coil model are (0, 0, 0), and its ending winding position corresponds to the sum of the unwinding positions of all coils in the single coil model.

[0076] Optionally, the transposition method of the wires between the two-line pie models can be different. When the transposition method of the wires between the previous two-line pie models is different from that of the next two-line pie model, the connection should be made according to the transposition method of the next two-line pie model.

[0077] Specifically, based on the coordinates and arc connection scheme of at least one double-circuit pie model, a coil arc trajectory is constructed, and the cross-section corresponding to the coil arc trajectory is swept along the trajectory to obtain a second coil arc model; at least one second coil arc model is used to connect the wire ends of at least one double-circuit pie model, so that all at least one double-circuit pie model are connected in series to obtain a single coil model.

[0078] Step 106: Repeat the steps of obtaining at least one double-circuit cake model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model, which is a transformer continuous winding model.

[0079] The number of single-coil models should be the same as the product of the number of single-phase coils and the number of phases. The number of double-coil models should be half the number of coils in the coil-level parameter data. A number of double-coil models equal to half the number of coils should be obtained, and half the number of coils should be at least one. For multi-coil models, single-coil models of the same phase share a common center, and the center distance of single-coil models of non-same-phase coils is equal to the spacing between the main columns of the iron core.

[0080] Optionally, to facilitate the translation of multiple single-coil models, the coordinates of the start and end points of all turns of the single-coil model are converted from the cylindrical coordinate system to the rectangular coordinate system, with the intermediate phase, the center point, and the upper surface of the lower yoke as the origin of the coordinate axes.

[0081] For example, the step of obtaining at least one double-piece model is repeated until the number of double-piece models is the same as half the number of pieces in the coil-level parameter data, thus obtaining at least one double-piece model; based on at least one double-piece model, the step of obtaining a single-coil model is repeated until the number of single-coil models is the same as the product of the number of single-phase coils and the number of phases, thus obtaining at least one single-coil model; having obtained at least one single-coil model, a multi-coil model is constructed based on the read parameters.

[0082] In the above-mentioned parametric modeling method for continuous transformer windings, at least one double-circuit pie model is obtained. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the continuous transformer winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; and based on the corrected coordinates... The process involves constructing a line-turn arc trajectory using an arc connection scheme; building a first line-turn arc model based on the arc trajectory; connecting the positive and negative pancake models using the first line-turn arc model to obtain a double-line pancake model; the process of obtaining the double-line pancake model comprehensively considers the complex structure of the transformer continuous winding from the line-turn level to the coil level, obtaining parameters of the continuous winding model under this complex structure, such as line-turn level parameter data, line-pancake level parameter data, and coil level parameter data, and initializing them to determine the line-turn connection scheme and the start and end coordinates of the line-turns within the pancake, as well as constructing the line-turn curve trajectory and line-turn curve model, correcting the model coordinates, and confirming the arc connection scheme, making the constructed double-line pancake model more accurate and reliable, and with stronger interpretability. Furthermore, this application obtains at least one second-turn arc model based on the coordinates of at least one double-circuit pie model and the arc connection scheme; connects at least one double-circuit pie model using at least one second-turn arc model to obtain a single-coil model; repeats the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model; and constructs a multi-coil model based on the read parameter data, which is a transformer continuous winding model. The above scheme refines the transformer continuous winding model to the turn level, enabling the model to adapt to the high computational complexity of frequency-varying parameters at high frequencies, improving the model's practicality, and achieving efficient and accurate complete parametric modeling of the transformer continuous winding.

[0083] In an exemplary embodiment, before initializing the read parameter data, the method further includes: identifying any set of reverse and forward discs of turn-level parameter data, disc-level parameter data, and coil-level parameter data in the read parameter data; identifying the burning code length in the disc-level parameter data to confirm that the read parameter data is parameter data of a transformer continuous winding; and calibrating the read parameter data according to parameter calibration principles.

[0084] Among them, the turn-level parameter data, coil-level parameter data and coil-level parameter data of any set of reverse and positive discs include: number of turns, continuous winding code (i.e., conductor transposition method, number of turns of parallel-wound conductors, number of parallel-wound conductors), arrangement sequence, radial and axial dimensions, inner diameter of coil, and outer diameter of coil.

[0085] Optionally, the read parameter data is checked according to the parameter calibration principle: determine whether both the positive and negative coils are continuous; determine whether the product of the number of turns of the parallel-wound wire and the number of parallel-wound wires is equal to the number of main wires in the arrangement sequence table; determine whether the number of parallel-wound wires of the negative and positive coils is consistent; determine whether the difference between the outer and inner diameters of the coil is equal to the sum of the radial widths of all materials in each coil; determine whether the wire types of the main wires in the coil are all of the same type; and determine whether the wire transposition method of the negative and positive coils is consistent.

[0086] For example, the parameters read are identified as follows: the coil-level parameters, wire-circle-level parameters, and coil-level parameters for any set of reverse and forward windings; the length of the burning code in the wire-circle-level parameter data is identified: the continuous wire-circle winding code consists of 3 numbers and 2 symbols, the inner-screen wire-circle winding code consists of 5 numbers, 3 symbols, and 1 letter, and the tangled wire-circle winding code consists of 6 numbers, 6 symbols, and 1 letter. Based on the length of the burning code, the read parameter data is confirmed to be the parameter data of the transformer's continuous winding; the read parameter data is checked according to the parameter checking principle. If any check result is negative, the system returns to the parameter input page and reports an error; if all check results are positive, the system proceeds to the next step.

[0087] In this embodiment, by performing meticulous initialization processing and rigorous parameter verification on the read parameter data, not only is the accuracy of the data used in the subsequent modeling process ensured, laying a solid foundation for building an accurate parameterized model of the transformer continuous winding, but the model construction deviation caused by parameter errors is also effectively avoided, thereby significantly improving the accuracy and reliability of the parameterized modeling method for transformer continuous winding.

[0088] In one embodiment, the read parameter data is initialized, and based on the initialized parameter data, the connection scheme and start / end coordinates of the coils within the pancake are determined; a coil curve trajectory is constructed based on the start / end coordinates of the coils; a coil curve model is constructed based on the connection scheme and coil curve trajectory within the pancake, including: calculating the radian corresponding to each gear and the radius of the starting firing point of each coil based on the read parameter data, and defining and numbering the main lines of the positive and negative pancakes to obtain initialized parameter data; determining the start / end coordinates of the coils based on the initialized parameter data and correcting the radian coordinates of the end point of the last coil; constructing a coil curve trajectory based on the start / end coordinates of the coils and the radian coordinates of the end point of the last coil; finding the connection scheme for the coils within the pancake based on the number of wires wound in parallel and the total number of coils in the pancake in the initialized parameter data; connecting the coil curve trajectory with reference to the connection scheme within the pancake; and sweeping the cross-section corresponding to the connected coil curve trajectory along the trajectory to construct a coil curve model.

[0089] In this process, each turn of the winding has at least one conductor connected in parallel, and the number of parallel conductors is the number of conductors wound in parallel as specified in the firing code. During transformer winding manufacturing, support bars are used to divide the circumference into segments, so the radian corresponding to each segment should be calculated based on the number of segments. The formula for calculating the radian corresponding to each segment is:

[0090]

[0091] For example, each pie's main line is defined with a number ranging from 1 to the number of turns of the current pie. For reverse pie lines, the numbering is defined from the outside to the inside, as follows: Figure 3 As shown, for a flat pie, the numbering is defined from the inside to the outside, as follows: Figure 4 As shown. The radius of the starting winding point for each turn can be obtained from the coil arrangement order, material size, and coil inner diameter. The connection scheme of the coil turns within the coil can be obtained based on the wire number and firing code. The number of wire loops within a single coil is determined by the number of parallel windings; the connection scheme is the same for both positive and negative coils. The connection scheme for continuous coil turns within the coil is shown in Table 2. The number of parallel windings is... The total number of turns of the coil is .

[0092] Table 2

[0093]

[0094] For example, the following rules must be met simultaneously to determine the starting coordinates of the wire turns: cylindrical coordinates must be used as the description method for the start and end coordinates of the wire turns; the first setting must be used as the starting setting for the first turn of the reversed winding, and the parallel-wound wires must be spaced one setting apart at the starting setting; for the start and end coordinates of each turn of wire, their radial directions should differ by a certain offset, and the rotation angle should be... The values ​​in the z-axis direction should all be 0. When calculating the start and end coordinates, the offset should be considered. The radial offset of the start and end coordinates of each turn of conductor is calculated based on the connection scheme of the turns within the pancake and the width of each material within the pancake. Finally, the start and end coordinates of the turns can be calculated based on the offset, the corresponding radian of each span, and the number of spans. Based on the number of spans removed, the radian coordinates of the termination points of each set of conductors in the last turn of the turn are corrected to obtain the final start and end coordinates of the turns. Based on the final start and end coordinates of the turns, the turn curve trajectory is constructed. Finally, referring to the connection scheme of the turns within the pancake, the turn curve trajectories of each set of conductors are connected. The cross-section corresponding to the connected turn curve trajectory is swept along the trajectory. If the turns are wound with flat conductors, the length and width of the cross-section correspond to the width and axial height of the turn parameters, respectively, to obtain the turn curve model.

[0095] Furthermore, the formula for revising the endpoint coordinates is as follows:

[0096]

[0097] in, These are the corrected endpoint coordinates. The endpoint coordinates before correction. For each level, the corresponding radian. This represents the number of files rejected.

[0098] In this embodiment, by calculating the corresponding radian of each level, reasonably defining the main line number, accurately obtaining the start and end coordinates of the turns, and scientifically constructing the curve trajectory and model of the turns, a refined simulation of the turn-level structure of the transformer's continuous winding can be achieved. This refined simulation not only helps to deeply understand the internal structure and working principle of the transformer's continuous winding, but also provides accurate and reliable data support for subsequent modeling and analysis, thereby further improving the accuracy and practicality of parametric modeling of the transformer's continuous winding.

[0099] In one embodiment, the coordinates of the pie chart model and the inverted pie chart model are corrected according to the initialized parameter data, and the arc connection scheme between the pie chart model and the inverted pie chart model is confirmed. This includes: correcting the radian coordinates of the start and end points of all lines of the pie chart model and the ordinates of the start and end points of all lines of the inverted pie chart model according to the read parameter data, and confirming the arc connection scheme between the pie chart model and the inverted pie chart model.

[0100] The wire transposition method corresponds one-to-one with the wire connection method between the positive and negative pie models. When the representative number for the wire transposition method is 1, the connection method between the pie heads is as follows: Figure 5 As shown; when the representative number for the wire transposition method is 2, the connection method between the two ends is as follows. Figure 6 As shown; similarly, when the conductor transposition method is the same as the number of parallel windings, the connection method between the ends of the discs is as follows. Figure 7 As shown in the figure The wires for the positive and negative discs are wound several times. This represents the total number of turns in the inverted pie chart model. According to... Figure 5 , Figure 6 and Figure 7 An arc connection scheme was introduced between the positive and negative pie models.

[0101] Specifically, based on the correspondence table between the wire transposition method and the wire connection method between the positive and negative pancake models, the wire connection method between the positive and negative pancake models is confirmed in the firing code, i.e., the arc connection scheme.

[0102] For example, after obtaining the positive and negative cake models, the initial firing level for both models is the default first level. When the down-firing level of the negative cake model is not equal to 0, the radian coordinates of the start and end points of the line turns in the positive cake model need to be corrected. The following formula is used for correction:

[0103]

[0104] in, and These are the radian coordinates of the start and end points of all turns of the positive disc before and after correction. For each level, the corresponding radian. This is the number of times the cake is reversed.

[0105] After correcting the radian coordinates of the start and end points of all turns in the positive pie chart, the ordinates of the start and end points of both the positive and negative pie charts are 0, meaning the two pie charts are at the same vertical height. Therefore, the ordinates of the start and end points of all turns in the negative pie chart need to be corrected according to the pie chart spacing. The following formula is used for ordinate correction:

[0106]

[0107] in, and , respectively, are the ordinates of the start and end coordinates of all line turns in the reverse pie model before and after correction, and L is the line-pie spacing.

[0108] In this embodiment, by correcting the coordinates of the positive and negative pie models and confirming the arc connection scheme between them, the relative positions and connection relationships between the positive and negative pie models in a continuous transformer winding can be accurately simulated, thus reproducing the complex structure. This accurate simulation not only helps to deeply understand the structural characteristics of continuous transformer windings but also provides crucial data and structural support for the subsequent construction of a complete and accurate parametric model of continuous transformer windings, thereby improving the accuracy and reliability of the entire modeling process.

[0109] In one embodiment, obtaining at least one second-line-turn arc model based on the coordinates and arc connection scheme of at least one double-line-pie model; and connecting at least one double-line-pie model with at least one second-line-turn arc model to obtain a single-coil model includes: correcting the number of steps and the ordinate of at least one double-line-pie model based on the read parameter data; constructing a second-line-turn curve trajectory based on the number of steps and the ordinate of at least one double-line-pie model; sweeping the cross-section corresponding to the second-line-turn arc trajectory along the trajectory to obtain at least one line-turn arc model; and connecting at least one double-line-pie model with at least one line-turn arc model to obtain a single-coil model.

[0110] In this embodiment, by correcting the number of turns and the ordinate of at least one double-circuit pie model, and constructing a second-circuit curve trajectory based on these corrected data, a second-circuit arc model is obtained. Finally, these models are used to connect the double-circuit pie model to obtain a single-coil model. This can accurately simulate the effect of the internal structure of the coil in the continuous winding of a transformer. This not only helps to deeply understand the complex structure of the coil in the continuous winding of a transformer, but also provides strong data support and structural guarantee for the subsequent construction of a more complete and accurate parametric model of the continuous winding of a transformer, thereby further improving the accuracy and reliability of the entire modeling process.

[0111] In one embodiment, based on the read parameter data, a multi-coil model is constructed based on at least one single-coil model, including: converting the coordinates of the start and end points of all turns from a cylindrical coordinate system to a rectangular coordinate system, with the middle phase, center point, and upper surface of the lower yoke of any single-coil model as the origin of the coordinate axis; and translating at least one single-coil model with reference to the origin of the coordinate axis based on the read parameter data to obtain the multi-coil model.

[0112] For example, at least one single-coil model is translated with reference to the origin of the coordinate axis based on the number of single-phase coils, the number of phases, the spacing between the iron core main columns, and the coil height.

[0113] In this embodiment, by performing coordinate system transformation on the coordinates of the start and end points of all turns and translating the single-coil model with reference to the origin of a specific coordinate axis, the effect of accurately constructing a multi-coil model can be achieved. This fully considers the relative positional relationship between multiple coils in the continuous winding of the transformer and ensures the accurate position of each coil in the overall structure.

[0114] The following is for reference. Figure 8 The present invention provides a method for parametric modeling of continuous windings of a transformer, using a specific embodiment as an example.

[0115] First, parameter identification and calibration are performed. All user-input parameters at the turn level, coil level, and coil level are read simultaneously for both the reverse and forward coils. These parameters primarily include the number of unwinding passes, continuous winding code (i.e., conductor transposition method, number of turns of parallel-wound conductors, and number of parallel-wound conductors), arrangement order, radial and axial dimensions, coil inner diameter, and coil outer diameter. Based on the winding code read from the parameters, the length of the burning code is analyzed to determine if the coil is continuous. After identification, parameter calibration is performed according to the following principles. During calibration, if any calibration result is negative, the system returns to the parameter input page with an error message; if all calibration results are positive, the system proceeds to the next step of turn-level modeling.

[0116] Subsequently, wire-turn level modeling is performed using user-uploaded parameters. Before starting wire-turn level modeling, the read data needs to be initialized, which involves calculating the corresponding radian for each pass based on the number of passes, and defining the conductor numbers. Taking a continuous wire disc with the burning code "2-3×2" as an example, the conductor numbers for the reverse and forward discs are as follows: Figure 3 , Figure 4 As shown in Table 3, the radius of the starting winding point for each turn can be calculated based on the coil arrangement order, material size, and coil inner diameter. Assuming the coil inner diameter is 300mm, the coil turn parameters are shown in Table 3.

[0117] Table 3

[0118]

[0119] The radius of the starting firing point of the wire coil numbered 3 in the reverse cake is:

[0120]

[0121] in, This indicates the width of the main line 1. This indicates the width of oil passage 1. This indicates the inner diameter of the coil.

[0122] Based on the number of wires wound, such as Figure 3 The continuous inverted disc shown can be identified by the wire number, and the internal wire turn connection scheme of the continuous inverted disc can be determined as shown in Table 4.

[0123] Table 4

[0124]

[0125] After confirming the curve connection scheme, the start and end coordinates of the turns are calculated according to the rules. Specifically, for... Figure 3 The start and end coordinate offsets of the middle traverse line number 1 The calculation formula is:

[0126]

[0127] The offset is related to the termination coordinates of the coil, but for the last coil of each set of conductors, the radian coordinates of the termination point of the last coil of each set of conductors need to be corrected according to the number of retractions. After determining the coil connection scheme and the start and end coordinates of the coils within the pie chart, the coil curve trajectory can be confirmed based on the start and end coordinates of the coils; the connection scheme of the coil curve trajectory is confirmed based on the coil connection scheme within the pie chart, and the coil curve trajectory is connected. The cross-section corresponding to the connected coil curve trajectory is swept along the trajectory. If the coil is wound with flat conductors, the length and width of the cross-section correspond to the radial width and axial height of the coil parameters, respectively, to obtain the coil curve model. Based on the coil curve model, a positive pie model and a negative pie model are constructed.

[0128] Secondly, line-to-line modeling is performed. Based on the constructed positive and negative line-to-line models, the radian coordinates of the start and end points of all lines in the positive line-to-line model and the ordinate coordinates of the start and end points of all lines in the negative line-to-line model are corrected. Simultaneously, based on the correspondence table between conductor transposition methods and conductor connection methods between the positive and negative line-to-line models, and according to the conductor transposition method in the firing code, the conductor connection method between the positive and negative line-to-line models is confirmed, i.e., the arc connection scheme. Based on the corrected coordinates and the arc connection scheme, the line-to-line arc trajectory is constructed; the cross-section corresponding to the line-to-line arc trajectory is swept along the trajectory to obtain the first line-to-line arc model; the first line-to-line arc model is used to connect the positive and negative line-to-line models to obtain a double-line-to-line model.

[0129] Finally, repeat the steps above to obtain the double-circle model until the number of circles equals the number of circles in the parameters, and then perform coil-level modeling. Adjust the number of loops and the ordinate sequentially, and construct the second-turn arc model according to the arc connection scheme. Use the second-turn arc model to connect all the double-circle circles, ultimately achieving single-coil modeling.

[0130] Repeat the steps for obtaining the double-coil model and the single-coil model until the number of single-coil models equals the product of the number of single-phase coils and the number of phases. First, transform the coordinates of the start and end points of all turns in the single-coil model of the transformer from cylindrical coordinates to rectangular coordinates, with the middle phase, center point, and upper surface of the lower yoke as the origin of the coordinate axes. Then, based on the single-coil model, construct a double-coil model according to the number of single-phase coils, the number of phases, the spacing between the main columns of the core, and the coil height. The windings of the same phase share a common center, and the center distance between the windings of non-same-phase coils is equal to the spacing between the main columns of the core.

[0131] For example, for a three-phase two-winding power transformer, the coordinates of the center point of the lowest coil of each coil are shown in Table 5. The center distance of the iron core main column is... This refers to the distance from the bottom of the X-phase high / low voltage side coil to the upper surface of the lower yoke. For the height of the line cake, For the high / low voltage side coil of phase X.

[0132] Table 5

[0133]

[0134] Based on the confirmed multi-coil coordinate translation of the single-coil model, the final multi-coil model is obtained. The multi-coil model is a complete continuous winding model of a transformer.

[0135] 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.

[0136] Based on the same inventive concept, this application also provides a transformer continuous winding parametric modeling device for implementing the above-mentioned transformer continuous winding parametric modeling method. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more transformer continuous winding parametric modeling device embodiments provided below can be found in the limitations of the transformer continuous winding parametric modeling method above, and will not be repeated here.

[0137] In one exemplary embodiment, such as Figure 9 As shown, a parametric modeling device 900 for continuous transformer windings is provided, comprising: an acquisition module 902, a connection module 904, and a construction module 906, wherein:

[0138] The acquisition module 902 is used to acquire at least one double-circuit pie model. The acquisition steps of the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0139] The connection module 904 is used to obtain at least one second-line-turn arc model based on the coordinates of at least one double-line pie model and the arc connection scheme; and to connect at least one double-line pie model using at least one second-line-turn arc model to obtain a single-coil model.

[0140] The construction module 906 is used to repeatedly execute the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, a multi-coil model is constructed based on at least one single-coil model. The multi-coil model is a transformer continuous winding model.

[0141] In an exemplary embodiment, the acquisition module is further configured to identify any set of reverse and positive disc wire-turn level parameter data, wire disc level parameter data, and coil level parameter data in the read parameter data; identify the firing code length in the wire disc level parameter data to confirm that the read parameter data is parameter data of the transformer continuous winding; and calibrate the read parameter data according to the parameter calibration principle.

[0142] In one embodiment, the acquisition module is further configured to calculate the radian corresponding to each gear and the radius of the starting firing point of each turn based on the read parameter data, and define and number the main lines of the positive and negative pancakes to obtain the initialized parameter data; based on the initialized parameter data, determine the start and end coordinates of the coil and correct the radian coordinates of the end point of the last turn; construct the coil curve trajectory based on the start and end coordinates of the coil and the radian coordinates of the end point of the last turn; find the coil connection scheme within the pancake based on the number of wires wound in parallel and the total number of turns of the pancake in the initialized parameter data; connect the coil curve trajectory by referring to the coil connection scheme within the pancake; and sweep the cross section corresponding to the connected coil curve trajectory along the trajectory to construct the coil curve model.

[0143] In one embodiment, the acquisition module is further configured to correct the radian coordinates of the start and end points of all lines in the positive pie model and the ordinate coordinates of the start and end points of all lines in the negative pie model based on the read parameter data, and confirm the arc connection scheme between the positive and negative pie models.

[0144] In one embodiment, the connection module is further configured to correct the number of retractions and the ordinate of at least one double-circuit pie model based on the read parameter data; construct a second coil curve trajectory based on the number of retractions and the ordinate of at least one double-circuit pie model; sweep the cross section corresponding to the second coil arc trajectory along the trajectory to obtain at least one coil arc model; and connect at least one double-circuit pie model with at least one coil arc model to obtain a single coil model.

[0145] In one embodiment, the construction module is further configured to convert the coordinates of the start and end points of all coils from the cylindrical coordinate system to the rectangular coordinate system, with the middle phase, center point and upper surface of the lower yoke of any single coil model as the origin of the coordinate axis; based on the read parameter data, at least one single coil model is translated with reference to the origin of the coordinate axis to obtain a multi-coil model.

[0146] Each module in the aforementioned parametric modeling device for continuous transformer windings can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each module.

[0147] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 10As shown, 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 parametric modeling method for continuous windings of a transformer. 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 an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0148] Those skilled in the art will understand that Figure 10 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.

[0149] 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:

[0150] At least one double-circuit pie model is obtained. The steps for obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory based on the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive and negative pie models based on the initialized parameter data, and confirming the arc connection scheme between the positive and negative pie models; constructing the turn arc trajectory based on the corrected coordinates and arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive and negative pie models using the first turn arc model to obtain the double-circuit pie model.

[0151] Based on the coordinates of at least one double-line pie model and the arc connection scheme, obtain at least one second-line turn arc model; use at least one second-line turn arc model to connect at least one double-line pie model to obtain a single-coil model;

[0152] Repeat the steps of obtaining at least one double-circuit pie model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model based on at least one single-coil model. The multi-coil model is a transformer continuous winding model.

[0153] In one embodiment, when the processor executes the computer program, it further performs the following steps: identifying the coil-level parameter data, wire-plate-level parameter data, and coil-level parameter data of any set of reverse and positive plates in the read parameter data; identifying the burning code length in the wire-plate-level parameter data to confirm that the read parameter data is parameter data of the transformer continuous winding; and calibrating the read parameter data according to the parameter calibration principle.

[0154] In one embodiment, when the processor executes the computer program, it further performs the following steps: based on the read parameter data, calculate the radian corresponding to each gear position and the radius of the starting firing point of each turn, and define and number the main lines of the positive and negative pancakes to obtain initialized parameter data; based on the initialized parameter data, determine the start and end coordinates of the coil and correct the radian coordinates of the end point of the last turn; based on the start and end coordinates of the coil and the radian coordinates of the end point of the last turn, construct the coil curve trajectory; based on the number of wires wound in parallel and the total number of turns in the pancake in the initialized parameter data, find the coil connection scheme within the pancake; refer to the coil connection scheme within the pancake, connect the coil curve trajectory; sweep the cross section corresponding to the connected coil curve trajectory along the trajectory to construct the coil curve model.

[0155] In one embodiment, when the processor executes the computer program, it further performs the following steps: based on the read parameter data, corrects the radian coordinates of the start and end points of all lines in the positive pie model and the ordinate coordinates of the start and end points of all lines in the negative pie model, and confirms the arc connection scheme between the positive and negative pie models.

[0156] In one embodiment, when the processor executes the computer program, it further performs the following steps: correcting the number of retractions and the ordinate of at least one double-circuit pie model according to the read parameter data; constructing a second coil curve trajectory based on the number of retractions and the ordinate of at least one double-circuit pie model; sweeping the cross section corresponding to the second coil arc trajectory along the trajectory to obtain at least one coil arc model; and connecting at least one double-circuit pie model with at least one coil arc model to obtain a single coil model.

[0157] In one embodiment, when the processor executes the computer program, it also performs the following steps: converting the coordinates of the start and end points of all coils from the cylindrical coordinate system to the rectangular coordinate system, with the middle phase, center point and upper surface of the lower yoke of any single coil model as the origin of the coordinate axis; and translating at least one single coil model according to the read parameter data and with reference to the origin of the coordinate axis to obtain a multi-coil model.

[0158] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0159] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0160] 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.

[0161] 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.

[0162] 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 patent 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 parametric modeling method for continuous windings of a transformer, characterized in that, The method includes: To obtain at least one double-circuit pie model, the steps of obtaining the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the continuous winding of the transformer; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory according to the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and the turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive pie model and the negative pie model according to the initialized parameter data, and confirming the arc connection scheme between the positive pie model and the negative pie model; constructing the turn arc trajectory based on the corrected coordinates and the arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive pie model and the negative pie model using the first turn arc model to obtain the double-circuit pie model. Based on the coordinates of at least one double-line pie model and the arc connection scheme, at least one second-line turn arc model is obtained; the at least one second-line turn arc model is used to connect the at least one double-line pie model to obtain a single-coil model; Repeat the steps of obtaining at least one double-circuit pancake model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, construct a multi-coil model, which is a transformer continuous winding model.

2. The method according to claim 1, characterized in that, Before initializing the read parameter data, the method further includes: Identify the coil-level, wire-level, and coil-level parameter data of any set of reverse and positive discs from the read parameter data; Identify the firing code length in the wire-level parameter data to confirm that the read parameter data is parameter data of the transformer continuous winding; The read parameter data is verified according to the parameter verification principle.

3. The method according to claim 1, characterized in that, The read parameter data is initialized, and based on the initialized parameter data, the connection scheme of the inner loop and the start and end coordinates of the loop are determined; the loop curve trajectory is constructed according to the start and end coordinates of the loop. Based on the in-disc wire-turn connection scheme and the wire-turn curve trajectory, a wire-turn curve model is constructed, including: Based on the read parameter data, calculate the radian corresponding to each gear and the radius of the starting firing point for each turn, and define and number the main lines of the positive and negative cakes to obtain the initialized parameter data; Based on the initialized parameter data, determine the start and end coordinates of the turn and correct the radian coordinates of the end point of the last turn; Based on the start and end coordinates of the line turn and the radian coordinates of the termination point of the last turn, a line turn curve trajectory is constructed. Based on the number of wires wound in parallel and the total number of turns in the coil in the initialized parameter data, find the connection scheme of the coil turns in the coil; Referring to the aforementioned in-circuit connection scheme, connect the curve trajectory of the in-circuit wires; The cross section corresponding to the connected turn curve trajectory is swept along the trajectory to construct the turn curve model.

4. The method according to claim 1, characterized in that, The step of correcting the coordinates of the pie chart model and the inverted pie chart model based on the initialized parameter data, and confirming the arc connection scheme between the pie chart model and the inverted pie chart model, includes: Based on the read parameter data, the radian coordinates of the start and end points of all lines in the positive pie model and the ordinate coordinates of the start and end points of all lines in the negative pie model are corrected, and the arc connection scheme between the positive pie model and the negative pie model is confirmed.

5. The method according to claim 1, characterized in that, The at least one second-line arc model is obtained based on the coordinates of at least one double-line pie model and the arc connection scheme. By connecting the at least one second-wire arc model with the at least one double-wire disc model to obtain a single-coil model, including: Based on the read parameter data, correct the number of reductions and the ordinate of the at least one double-line pie model; Based on the number of retractions and the ordinate of the at least one double-line pie model, construct the line-turn curve trajectory; sweep the cross section corresponding to the line-turn arc trajectory along the trajectory to obtain at least one line-turn arc model; A single-coil model is obtained by connecting the at least one second-line arc model with the at least one double-line disc model.

6. The method according to claim 1, characterized in that, The step of constructing a multi-coil model based on at least one single-coil model, according to the read parameter data, includes: The coordinates of the start and end points of all coils are converted from cylindrical coordinates to rectangular coordinates, with the middle phase, center point and upper surface of the lower yoke of any single coil model described above as the origin of the coordinate axes; Based on the read parameter data, at least one of the single-coil models is translated with reference to the origin of the coordinate axis to obtain a multi-coil model.

7. A parametric modeling device for continuous windings of a transformer, characterized in that, The device includes: An acquisition module is used to acquire at least one double-circuit pie model. The acquisition steps of the double-circuit pie model include: reading the turn-level parameter data, pie-level parameter data, and coil-level parameter data of the transformer continuous winding; initializing the read parameter data, and determining the turn connection scheme and turn start and end coordinates based on the initialized parameter data; constructing the turn curve trajectory according to the turn start and end coordinates; constructing the turn curve model based on the turn connection scheme and the turn curve trajectory; constructing a positive pie model and a negative pie model based on the turn curve model; correcting the coordinates of the positive pie model and the negative pie model according to the initialized parameter data, and confirming the arc connection scheme between the positive pie model and the negative pie model; constructing the turn arc trajectory based on the corrected coordinates and the arc connection scheme; constructing a first turn arc model based on the turn arc trajectory; and connecting the positive pie model and the negative pie model using the first turn arc model to obtain the double-circuit pie model. A connection module is used to obtain at least one second-line-turn arc model based on the coordinates of at least one double-line pie model and the arc connection scheme; and to connect the at least one second-line-turn arc model with the at least one double-line pie model to obtain a single-coil model. A construction module is used to repeatedly execute the steps of obtaining at least one double-circuit cake model and obtaining a single-coil model to obtain at least one single-coil model. Based on the read parameter data, a multi-coil model is constructed, wherein the multi-coil model is a transformer continuous winding 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 6.

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 6.

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 6.

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