A method, system, device and medium for manufacturing power equipment

Abstract

The present invention discloses a method, system, device and medium for manufacturing power equipment, and relates to the technical field of power transmission systems. By obtaining the initial device structure data of the power equipment, the initial device structure data is used to conduct a towing heat stability operation test to generate an initial topology structure. The structure of the composite busbar in the initial topology structure is adjusted according to a preset amplitude formula to generate an intermediate topology structure. The distance between each metal component in the intermediate topology structure is adjusted according to a preset electric field strength formula to generate a target topology structure. The structural data corresponding to the towing power equipment in the target topology structure is extracted to generate the target device structure data corresponding to the power equipment. Eddy current heating is comprehensively suppressed by adjusting the composite busbar to reduce the stray inductance, increasing the distance between the parallel busbar and the metal components of the power equipment, and adjusting the structure of the metal components according to the preset electric field strength formula.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission systems, and in particular to a method, system, equipment and medium for manufacturing power equipment. Background Art

[0002] Flexible low-frequency transmission (FLFT) is a highly efficient AC power transmission technology based on power electronics. It reduces the transmission frequency of the traditional power grid from 50 Hz to 20 Hz, effectively increasing the transmission capacity, distance, and efficiency of transmission lines. Power equipment is the core component of FLFT, performing key functions such as power conversion and AC / DC conversion. During the R&D and manufacturing process, power equipment requires thorough testing and verification, particularly for long-term stable operation under full load. This is primarily accomplished through thermal stability tests.

[0003] During the thermal stability test of power devices, the high switching frequency of the devices can easily generate high-frequency oscillating currents between the capacitor banks of the two power devices and the power device capacitors. This oscillating current can cause significant magnetic field fluctuations, generating eddy currents in nearby metal conductors, leading to significant heating and compromising the safe operation of the power devices. However, existing thermal stability tests for power devices during manufacturing fail to consider the impact of eddy current heating on the device's operating state, resulting in poor stability in the resulting devices. Summary of the Invention

[0004] The present invention provides a method, system, device and medium for manufacturing a power device, which solves the technical problem that the existing power device does not consider the influence of eddy current heating on the operating state of the power device during the thermal stability test during the manufacturing process, resulting in poor stability of the manufactured power device.

[0005] The present invention provides a method for manufacturing a power device, comprising:

[0006] Acquiring initial device structure data of the power device, performing a tow thermal stability operation test using the initial device structure data, and generating an initial topology structure;

[0007] Adjusting the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure;

[0008] adjusting the distance between the metal components in the intermediate topological structure according to a preset electric field strength formula to generate a target topological structure;

[0009] The structural data corresponding to the towed power device in the target topology structure is extracted to generate target device structural data corresponding to the power device.

[0010] Optionally, the step of adjusting the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure includes:

[0011] Setting the composite busbar in the initial topology structure to a composite copper busbar to generate a topology adjustment structure;

[0012] Substituting the operating data corresponding to the topology adjustment structure into a preset amplitude formula to generate an amplitude calculation result;

[0013] The preset amplitude formula is:

[0014]

[0015] Among them, Q is the quality factor, which characterizes the amplitude of the oscillating current; R is the equivalent resistance of the oscillation circuit, C is the capacitance value inside the power device; L is the inductance value of the oscillation circuit;

[0016] When the amplitude calculation result is equal, the topology adjustment structure is used as the intermediate topology structure.

[0017] Optionally, the step of adjusting the distance between metal components in the intermediate topological structure according to a preset electric field strength formula to generate a target topological structure includes:

[0018] Substituting the operating data corresponding to the intermediate topological structure into a preset electric field strength formula to generate an electric field strength calculation result;

[0019] The preset electric field strength formula is:

[0020]

[0021] Where B is the electric field intensity; μ0 is the magnetic permeability in vacuum; I is the current in the composite busbar, and r is the metal distance between the composite busbar and the metal parts of the power device.

[0022] When the electric field strength calculation result is equal, all metal distances corresponding to the electric field strength calculation result are used to construct metal component distance data;

[0023] Perform component cutting processing according to the metal component distance data to generate cutting data;

[0024] Performing material setting according to the distance between each local component in the intermediate topological structure and the composite busbar to generate material adjustment data;

[0025] The intermediate topological structure is structurally updated using the metal component distance data, the cutting data, and the material adjustment data to generate a target topological structure.

[0026] Optionally, the step of performing component cutting processing according to the metal component distance data to generate cutting data includes:

[0027] Calculating the product of the electric field intensity corresponding to each metal distance in the metal component distance data and the corresponding metal area to generate the magnetic flux corresponding to the metal component;

[0028] Selecting the maximum value of the magnetic flux to generate a maximum magnetic flux value;

[0029] The metal part corresponding to the maximum value of the magnetic flux is subjected to hole cutting to generate cutting data.

[0030] Optionally, the step of performing material setting according to the distance between each local component in the intermediate topological structure and the composite busbar and generating material adjustment data includes:

[0031] respectively calculating the distance between each local component in the intermediate topological structure and the composite busbar to generate a local component distance;

[0032] Selecting the minimum value among the local component distances to generate a local component distance minimum value;

[0033] The material of the local component corresponding to the local component minimum distance value is set as a preset material to generate material adjustment data.

[0034] The present invention also provides a power device manufacturing system, comprising:

[0035] An initial topology structure generating module is used to obtain initial device structure data of the power device, use the initial device structure data to perform a tow thermal stability operation test, and generate an initial topology structure;

[0036] An intermediate topology structure generating module, configured to adjust the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure;

[0037] a target topology structure generating module, configured to adjust the distance between the metal components in the intermediate topology structure according to a preset electric field strength formula to generate a target topology structure;

[0038] The target device structure data generating module is used to extract the structure data corresponding to the towed power device in the target topology structure and generate the target device structure data corresponding to the power device.

[0039] Optionally, the intermediate topology structure generating module includes:

[0040] A topology adjustment structure generating module is used to set the composite busbar in the initial topology structure as a composite copper busbar to generate a topology adjustment structure;

[0041] an amplitude calculation result generating module, configured to substitute the operating data corresponding to the topology adjustment structure into a preset amplitude formula to generate an amplitude calculation result;

[0042] The preset amplitude formula is:

[0043]

[0044] Among them, Q is the quality factor, which characterizes the amplitude of the oscillating current; R is the equivalent resistance of the oscillation circuit, C is the capacitance value inside the power device; L is the inductance value of the oscillation circuit;

[0045] The intermediate topology structure generating submodule is configured to use the topology adjustment structure as the intermediate topology structure when the amplitude calculation result shows that equality holds.

[0046] Optionally, the target topology structure generating module includes:

[0047] An electric field strength calculation result generating module, configured to substitute the operating data corresponding to the intermediate topological structure into a preset electric field strength formula to generate an electric field strength calculation result;

[0048] The preset electric field strength formula is:

[0049]

[0050] Where B is the electric field intensity; μ0 is the magnetic permeability in vacuum; I is the current in the composite busbar, and r is the metal distance between the composite busbar and the metal parts of the power device.

[0051] a metal component distance data construction module, configured to construct metal component distance data using all metal distances corresponding to the electric field strength calculation result when the electric field strength calculation result is equal;

[0052] A cutting data generating module, configured to perform component cutting processing according to the metal component distance data and generate cutting data;

[0053] a material adjustment data generating module, configured to perform material setting according to the distance between each local component in the intermediate topological structure and the composite busbar, and generate material adjustment data;

[0054] The target topology structure generation submodule is used to update the intermediate topology structure by using the metal component distance data, the cutting data and the material adjustment data to generate a target topology structure.

[0055] The present invention also provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of implementing any of the above-mentioned power device manufacturing methods.

[0056] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed, implements any of the above-mentioned methods for manufacturing a power device.

[0057] It can be seen from the above technical solutions that the present invention has the following advantages:

[0058] The present invention obtains the initial device structure data of the power device, uses the initial device structure data to conduct a towing thermal stability operation test, and generates an initial topology structure. The structure of the composite busbar in the initial topology structure is adjusted according to a preset amplitude formula to generate an intermediate topology structure. The distance between each metal component in the intermediate topology structure is adjusted according to a preset electric field strength formula to generate a target topology structure. The structural data corresponding to the towing power device in the target topology structure is extracted to generate the target device structure data corresponding to the power device. This solves the technical problem that the towing thermal stability test of the existing power equipment during the manufacturing process does not consider the influence of eddy current heating on the operating state of the power equipment, resulting in poor stability of the manufactured power equipment. Eddy current heating is comprehensively suppressed by adjusting the composite busbar to reduce the stray inductance, increasing the distance between the parallel row and the metal components of the power device, and adjusting the structure of the metal components according to the preset electric field strength formula. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0060] Figure 1 A flowchart of a method for manufacturing a power device according to the first embodiment of the present invention;

[0061] Figure 2 This is an electrical schematic diagram of a power device pair thermal stability test platform provided in Example 1 of the present invention;

[0062] Figure 3 A power device based on a two-level half-bridge topology provided in the first embodiment of the present invention;

[0063] Figure 4 A power device based on a two-level full-bridge topology provided in the first embodiment of the present invention;

[0064] Figure 5 A power device with a two-level chopping topology provided in the first embodiment of the present invention;

[0065] Figure 6 A power device based on a three-level topology provided in the first embodiment of the present invention;

[0066] Figure 7 A power device based on a five-level topology provided in the first embodiment of the present invention;

[0067] Figure 8 A schematic diagram of local hole cutting of a metal component provided in the first embodiment of the present invention;

[0068] Figure 9 A schematic diagram of the oscillating current waveform of the parallel busbar before the eddy current suppression method is adopted according to the first embodiment of the present invention;

[0069] Figure 10 A schematic diagram of the oscillating current waveform of the parallel busbar after adopting the eddy current suppression method provided in the first embodiment of the present invention;

[0070] Figure 11 This is a structural block diagram of a power equipment manufacturing system provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0071] Embodiments of the present invention provide a power device manufacturing method, system, device and medium for solving the technical problem that the existing power device does not consider the influence of eddy current heating on the operating state of the power device during the thermal stability test during the manufacturing process, resulting in poor stability of the manufactured power device.

[0072] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0073] See also Figure 1 , Figure 1 This is a flowchart of the steps of a method for manufacturing a power device provided in Example 1 of the present invention.

[0074] A method for manufacturing a power device provided in Example 1 of the present invention includes:

[0075] Step 101: Acquire initial device structure data of a power device, use the initial device structure data to conduct a thermal stability test, and generate an initial topology structure.

[0076] In the embodiment of the present invention, the thermal stability operation test of the power equipment is carried out, and multiple angles are combined to jointly suppress the eddy current heating problem, so as to achieve the long-term safe operation of the power equipment.

[0077] The electrical schematic diagram of the power equipment thermal stability test platform is as follows: Figure 2 As shown, it includes power device 1, power device 2, load inductor, positive parallel row, negative parallel row and DC power supply. Among them, power device 1 and power device 2 have the same structure, consisting of capacitors and power conversion circuits. The output ports of the two power devices are connected to the positive and negative poles of the DC power supply through the load inductor, and the input ports are connected to the positive and negative poles of the DC power supply through the positive parallel row and negative parallel row. During the operation test, due to the switching action of the device and the high switching frequency, high-frequency oscillating current is easily generated between the capacitor connection rows (or cables) of the two power devices and the capacitors of the power devices (the oscillating current path is marked in the figure). This oscillating current will cause significant magnetic field fluctuations, generate eddy current effects on nearby metal conductors, and cause significant heating.

[0078] The power device can be of various topologies, including two-level half-bridge topology, full-bridge topology, chopper topology, or three-level and five-level topology, such as Figures 3 to 7 As shown, the switching devices inside the power equipment adopt fully controlled power electronic devices, which can be insulated gate bipolar transistors (IGBTs), integrated gate-commutated thyristors (IGCTs), or gate turn-off thyristors (GTOs), and can also be composed of multiple devices connected in series or in parallel.

[0079] Therefore, the initial device structure data of two power devices with the same structure are used to conduct a pair-drag thermal stability operation test to construct the initial topology structure.

[0080] Step 102: Adjust the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure.

[0081] Furthermore, step 102 may include the following sub-steps S11-S13:

[0082] S11. The composite busbar in the initial topology structure is set to a composite copper busbar to generate a topology adjustment structure.

[0083] S12. Substituting the operating data corresponding to the topology adjustment structure into a preset amplitude formula to generate an amplitude calculation result.

[0084] The preset amplitude formula is:

[0085]

[0086] Among them, Q is the quality factor, which characterizes the amplitude of the oscillating current; R is the equivalent resistance of the oscillation circuit, C is the capacitance value inside the power device; L is the inductance value of the oscillation circuit.

[0087] S13. When the amplitude calculation result shows that equality holds, the topology adjustment structure is used as the intermediate topology structure.

[0088] In an embodiment of the present invention, in order to suppress the problem of eddy current heating, a composite copper busbar is used to connect two busbars of the DC capacitor of the power device in parallel. The calculation is performed according to a preset amplitude formula. The composite copper busbar is adjusted according to the amplitude calculation result so that the equal sign of the preset amplitude formula holds, thereby obtaining an intermediate topology structure, minimizing the stray inductance and reducing the amplitude of the oscillating current.

[0089] Step 103: Adjust the distance between metal components in the intermediate topology structure according to a preset electric field strength formula to generate a target topology structure.

[0090] Furthermore, step 103 may include the following sub-steps S21-S25:

[0091] S21. Substituting the operating data corresponding to the intermediate topological structure into a preset electric field strength formula to generate an electric field strength calculation result.

[0092] The preset electric field strength formula is:

[0093]

[0094] Where B is the electric field strength; μ0 is the magnetic permeability in vacuum; I is the current in the composite busbar, and r is the metal distance between the composite busbar and the metal parts of the power device.

[0095] S22. When the electric field strength calculation result shows an equal sign, all metal distances corresponding to the electric field strength calculation result are used to construct metal component distance data.

[0096] S23. Perform component cutting processing according to the metal component distance data to generate cutting data.

[0097] S24. Setting materials according to the distances between each local component and the composite busbar in the intermediate topological structure, and generating material adjustment data.

[0098] S25. Update the intermediate topology structure using the metal component distance data, cutting data, and material adjustment data to generate a target topology structure.

[0099] In an embodiment of the present invention, when designing a composite busbar, i.e., a composite copper busbar, a sufficient distance should be designed between the composite copper busbar and the metal components of the power equipment, and calculations should be performed based on the formula between the magnetic field strength and distance that causes eddy current heating, i.e., a preset electric field strength formula. When the electric field strength calculation result is equal, all metal distances corresponding to the electric field strength calculation result are used to construct metal component distance data. At the same time, to suppress the eddy current heating problem, component cutting is performed based on the preset electric field strength formula, i.e., based on the metal component distance data, to generate cutting data. Material settings are also performed based on the distance between each local component in the intermediate topology structure and the composite busbar, to generate material adjustment data. Finally, the intermediate topology structure is structurally updated using the metal component distance data, cutting data, and material adjustment data to obtain the target topology structure.

[0100] Furthermore, step S23 may include the following sub-steps S231-S233:

[0101] S231 , respectively calculating the product of the electric field intensity corresponding to each metal distance in the metal component distance data and the corresponding metal area to generate a magnetic flux corresponding to the metal component.

[0102] S232. Select the maximum value of the magnetic flux to generate the maximum value of the magnetic flux.

[0103] S233. Perform hole cutting on the metal part corresponding to the maximum magnetic flux value to generate cutting data.

[0104] In the embodiment of the present invention, in order to suppress the eddy current heating problem, according to the preset electric field strength formula, the closer to the composite copper busbar, the stronger the magnetic field strength, and the larger the area of ​​the metal component, the greater the magnetic flux, and the more serious the eddy current heating problem. Therefore, the magnetic flux of each metal component near the composite copper busbar is calculated, and the part of the metal component corresponding to the maximum magnetic flux, that is, the maximum magnetic flux, is cut to reduce the area of ​​the metal component through which the magnetic field passes. The metal component is mainly cut by hole cutting to generate cutting data. In order to maintain the integrity of the structural support of the metal component, the hole cutting schematic diagram is shown as follows. Figure 8 As shown, the magnetic flux calculation formula is: Ψ=BS, where Ψ is the magnetic flux, B is the electric field intensity, and S is the metal area.

[0105] Furthermore, step S24 may include the following sub-steps S241-S243:

[0106] S241 , respectively calculating the distance between each local component in the intermediate topology structure and the composite busbar to generate a local component distance.

[0107] S242. Select the minimum value among the local component distances to generate the minimum value of the local component distances.

[0108] S243: Set the material of the local component corresponding to the minimum local component distance as a preset material, and generate material adjustment data.

[0109] The default material refers to non-magnetic materials, including stainless steel and plastic.

[0110] In an embodiment of the present invention, to suppress eddy current heating, local metal components of power equipment that are close to the parallel composite copper busbar can also be constructed of non-magnetic materials, including stainless steel and plastic, to suppress the generation of eddy currents. The position of these local components is determined using the same calculation method used for the cutting method and is determined based on the maximum magnetic flux. The distance between each local component and the composite busbar in the intermediate topology is calculated to generate a local component distance. The minimum value among the local component distances is selected to generate a minimum local component distance value. The material of the local component corresponding to the minimum local component distance value is then set to the preset material, generating material adjustment data.

[0111] Step 104: extract the structural data corresponding to the towed power device in the target topology structure, and generate target device structural data corresponding to the power device.

[0112] In this embodiment of the present invention, eddy current heating is comprehensively suppressed by reducing stray inductance through composite busbars, increasing the distance between parallel buses and metal components of power devices, cutting metal components, and using non-magnetic materials for some components to obtain target device structure data. The structure data corresponding to the power devices in the target topology is used as the target device structure data for the power devices.

[0113] Specifically, Figure 9 and Figure 10 The waveforms of the oscillating current in the parallel composite busbar are shown before and after the proposed eddy current heating suppression method is adopted. Before the proposed method, the effective value of the oscillating current was 2300 A. After the proposed solution, the effective value of the oscillating current was 1600 A. It can be seen that the effective value of the oscillating current is significantly reduced, and the heating caused by eddy currents is significantly reduced.

[0114] In an embodiment of the present invention, by obtaining the initial device structure data of the power device, the initial device structure data is used to perform a thermal stability test to generate an initial topology structure. The structure of the composite busbar in the initial topology structure is adjusted according to a preset amplitude formula to generate an intermediate topology structure. The distance between each metal component in the intermediate topology structure is adjusted according to a preset electric field strength formula to generate a target topology structure. The structural data corresponding to the tow power device in the target topology structure is extracted to generate the target device structure data corresponding to the power device. This solves the technical problem that the thermal stability test of the existing power equipment during the manufacturing process does not consider the influence of eddy current heating on the operating state of the power equipment, resulting in poor stability of the manufactured power equipment. Eddy current heating is comprehensively suppressed by adjusting the composite busbar to reduce the stray inductance, increasing the distance between the parallel row and the metal components of the power equipment, cutting the metal components, and using non-magnetic materials for local components.

[0115] See also Figure 11 , Figure 11 This is a structural block diagram of a power equipment manufacturing system provided in the second embodiment of the present invention.

[0116] A second embodiment of the present invention provides a power device manufacturing system, comprising:

[0117] The initial topology structure generating module 1101 is used to obtain initial device structure data of the power device, use the initial device structure data to perform a thermal stability operation test, and generate an initial topology structure.

[0118] The intermediate topology structure generating module 1102 is configured to adjust the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure.

[0119] The target topology structure generating module 1103 is configured to adjust the distance between the metal components in the intermediate topology structure according to a preset electric field strength formula to generate the target topology structure.

[0120] The target device structure data generating module 1104 is configured to extract structure data corresponding to the towed power device in the target topology structure and generate target device structure data corresponding to the power device.

[0121] Optionally, the intermediate topology structure generating module 1102 includes:

[0122] The topology adjustment structure generation module is used to set the composite busbar in the initial topology structure to a composite copper busbar to generate a topology adjustment structure.

[0123] The amplitude calculation result generation module is used to substitute the operating data corresponding to the topology adjustment structure into the preset amplitude formula to generate the amplitude calculation result.

[0124] The preset amplitude formula is:

[0125]

[0126] Among them, Q is the quality factor, which characterizes the amplitude of the oscillating current; R is the equivalent resistance of the oscillation circuit, C is the capacitance value inside the power device; L is the inductance value of the oscillation circuit.

[0127] The intermediate topology structure generating submodule is used to use the topology adjustment structure as the intermediate topology structure when the amplitude calculation result is equal.

[0128] Optionally, the target topology structure generating module 1103 includes:

[0129] The electric field strength calculation result generation module is used to substitute the operating data corresponding to the intermediate topology structure into the preset electric field strength formula to generate the electric field strength calculation result.

[0130] The preset electric field strength formula is:

[0131]

[0132] Where B is the electric field strength; μ0 is the magnetic permeability in vacuum; I is the current in the composite busbar, and r is the metal distance between the composite busbar and the metal parts of the power device.

[0133] The metal component distance data construction module is used to construct the metal component distance data using all metal distances corresponding to the electric field strength calculation result when the electric field strength calculation result is equal.

[0134] The cutting data generation module is used to perform component cutting processing according to the distance data of the metal component and generate cutting data.

[0135] The material adjustment data generation module is used to set the material according to the distance between each local component and the composite busbar in the intermediate topological structure and generate material adjustment data.

[0136] The target topology structure generation submodule is used to update the intermediate topology structure using the metal part distance data, cutting data and material adjustment data to generate the target topology structure.

[0137] Optionally, the cutting data generation module may perform the following steps:

[0138] Calculate the product of the electric field intensity corresponding to each metal distance in the metal component distance data and the corresponding metal area to generate the magnetic flux corresponding to the metal component;

[0139] Select the maximum value of magnetic flux to generate the maximum value of magnetic flux;

[0140] Hole-cutting is performed on the metal parts corresponding to the maximum magnetic flux value to generate cutting data.

[0141] Optionally, the material adjustment data generation module may perform the following steps:

[0142] Calculate the distance between each local component and the composite busbar in the intermediate topology structure to generate the local component distance;

[0143] Select the minimum value among the local component distances to generate the minimum value of the local component distance;

[0144] The material of the local component corresponding to the minimum local component distance is set as the preset material, and material adjustment data is generated.

[0145] An embodiment of the present invention further provides an electronic device, comprising: a memory and a processor, wherein a computer program is stored in the memory; when the computer program is executed by the processor, the processor executes the power device manufacturing method as described in any of the above embodiments.

[0146] The memory can be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk, or a ROM. The memory has storage space for program codes for executing any of the method steps in the above method. For example, the storage space for program codes can include individual program codes for implementing the various steps in the above method. These program codes can be read from or written to one or more computer program products. These computer program products include program code carriers such as a hard disk, a compact disk (CD), a memory card, or a floppy disk. The program code can be compressed, for example, in an appropriate form. When these codes are run by a computing processing device, the computing processing device causes the computing processing device to execute the various steps in the power device manufacturing method described above.

[0147] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for manufacturing a power device according to any of the above embodiments is implemented.

[0148] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0149] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0150] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0151] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0152] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program code.

[0153] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for manufacturing a power device, characterized in that: include: Acquiring initial device structure data of the power device, performing a tow thermal stability operation test using the initial device structure data, and generating an initial topology structure; Adjusting the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure; The specific steps include: setting the composite busbar in the initial topology structure to a composite copper busbar to generate a topology adjustment structure; substituting the operating data corresponding to the topology adjustment structure into a preset amplitude formula to generate an amplitude calculation result; when the amplitude calculation result is equal, using the topology adjustment structure as an intermediate topology structure; wherein the preset amplitude formula is: , where Q is the quality factor, which characterizes the amplitude of the oscillating current; R is the equivalent resistance of the oscillation circuit, C is the capacitance value inside the power device; L is the inductance value of the oscillation circuit; The distances between the metal components in the intermediate topology structure are adjusted according to a preset electric field strength formula to generate a target topology structure. The specific steps include: substituting the operating data corresponding to the intermediate topology structure into the preset electric field strength formula to generate an electric field strength calculation result; when the electric field strength calculation result is equal, using all metal distances corresponding to the electric field strength calculation result to construct metal component distance data; performing component cutting processing according to the metal component distance data to generate cutting data; performing material setting according to the distance between each local component in the intermediate topology structure and the composite busbar to generate material adjustment data; and updating the intermediate topology structure using the metal component distance data, the cutting data, and the material adjustment data to generate a target topology structure. The preset electric field strength formula is: ;in, is the electric field strength; is the magnetic permeability in vacuum; I is the current in the composite busbar, and r is the metal distance between the composite busbar and the metal parts of the power device; The structural data corresponding to the towed power device in the target topology structure is extracted to generate target device structural data corresponding to the power device.

2. The method for manufacturing a power device according to claim 1, wherein: The step of performing component cutting processing according to the metal component distance data to generate cutting data includes: Calculating the product of the electric field intensity corresponding to each metal distance in the metal component distance data and the corresponding metal area to generate the magnetic flux corresponding to the metal component; Selecting the maximum value of the magnetic flux to generate a maximum magnetic flux value; The metal part corresponding to the maximum value of the magnetic flux is subjected to hole cutting to generate cutting data.

3. The method for manufacturing a power device according to claim 1, wherein: The step of setting the material according to the distance between each local component in the intermediate topological structure and the composite busbar and generating material adjustment data includes: respectively calculating the distance between each local component in the intermediate topological structure and the composite busbar to generate a local component distance; Selecting the minimum value among the local component distances to generate a local component distance minimum value; The material of the local component corresponding to the local component minimum distance value is set as a preset material to generate material adjustment data.

4. A power device manufacturing system, characterized in that: include: An initial topology structure generating module is used to obtain initial device structure data of the power device, use the initial device structure data to perform a tow thermal stability operation test, and generate an initial topology structure; An intermediate topology structure generating module, configured to adjust the structure of the composite busbar in the initial topology structure according to a preset amplitude formula to generate an intermediate topology structure; a target topology structure generating module, configured to adjust the distance between the metal components in the intermediate topology structure according to a preset electric field strength formula to generate a target topology structure; A target device structure data generating module is used to extract the structure data corresponding to the towed power device in the target topology structure and generate target device structure data corresponding to the power device; Wherein, the intermediate topology structure generation module includes: A topology adjustment structure generating module is used to set the composite busbar in the initial topology structure as a composite copper busbar to generate a topology adjustment structure; an amplitude calculation result generating module, configured to substitute the operating data corresponding to the topology adjustment structure into a preset amplitude formula to generate an amplitude calculation result; The preset amplitude formula is: ； Among them, Q is the quality factor, which characterizes the amplitude of the oscillating current; R is the equivalent resistance of the oscillation circuit, C is the capacitance value inside the power device; L is the inductance value of the oscillation circuit; an intermediate topology structure generating submodule, configured to use the topology adjustment structure as an intermediate topology structure when the amplitude calculation result is equal; The target topology structure generation module includes: An electric field strength calculation result generating module, configured to substitute the operating data corresponding to the intermediate topological structure into a preset electric field strength formula to generate an electric field strength calculation result; The preset electric field strength formula is: ； in, is the electric field strength; is the magnetic permeability in vacuum; I is the current in the composite busbar, and r is the metal distance between the composite busbar and the metal parts of the power device; a metal component distance data construction module, configured to construct metal component distance data using all metal distances corresponding to the electric field strength calculation result when the electric field strength calculation result is equal; A cutting data generating module, configured to perform component cutting processing according to the metal component distance data and generate cutting data; a material adjustment data generating module, configured to perform material setting according to the distance between each local component in the intermediate topological structure and the composite busbar, and generate material adjustment data; The target topology structure generation submodule is used to update the intermediate topology structure by using the metal component distance data, the cutting data and the material adjustment data to generate a target topology structure.

5. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the power device manufacturing method according to any one of claims 1 to 3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the power device manufacturing method according to any one of claims 1 to 3 is implemented.

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