Simulation method and device of motor controller filter and simulation device

Abstract

The invention discloses a simulation method and device for a motor controller filter and a simulation device.The method comprises the steps that an initial simulation model of the motor controller filter is obtained, the length and contact resistance of a copper bar lap joint area in the initial simulation model are determined, and the cross sectional area of a copper bar is determined; the copper bar lap joint area is formed by copper bars in a lap joint mode. Setting a copper bar compensation area in the copper bar lap joint area, and determining target resistivity by using the length and contact resistance of the copper bar lap joint area and the cross section area of the copper bar; and modifying material parameters of the copper bar compensation area according to the target resistivity to compensate the contact resistance to an initial simulation model of the motor controller filter to obtain a target simulation model. The invention aims to improve the precision of the simulation result of the motor controller filter, so that the simulation result is closer to the actual measurement result.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and more specifically, to a simulation method for a motor controller filter, a simulation device for a motor controller filter, a simulation device, a computer-readable storage medium, and a computer program product. Background Art

[0002] The motor controller is the core controller of new energy vehicles. Its main function is to control the speed and torque of the motor to meet various driving requirements of the vehicle. In the motor controller, components such as supporting capacitors and motor controller filters will generate a lot of heat during operation, which will increase the overall temperature of the motor controller and affect its normal operation. Among them, the main heat source of the motor controller filter is the copper busbar. When the motor controller is working, the large current will cause the copper busbar to heat up and generate high temperature, which will affect the service life of the motor controller filter and affect the driving safety of the vehicle. Therefore, it is necessary to obtain the actual temperature of the motor controller filter when the motor controller is working, so as to take heat dissipation measures when the motor controller filter is overheated.

[0003] In the related art, computer simulation technology can be used to calculate and simulate the temperature of the motor controller filter in the motor controller, which can effectively save time and cost. However, the current simulation of the motor controller filter is calculated under ideal conditions, ignoring the influence of the actual state, resulting in a large deviation between the simulation results and the measured results. Summary of the invention

[0004] In view of this, the present invention provides a simulation method of a motor controller filter, a simulation device of a motor controller filter, a simulation device, a computer-readable storage medium and a computer program product, aiming to improve the accuracy of the simulation results of the motor controller filter so that the simulation results are closer to the actual measured results.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] In a first aspect, the present invention provides a method for simulating a motor controller filter, the method comprising:

[0007] Obtaining an initial simulation model of the motor controller filter, and determining the length and contact resistance of the copper bar overlap region in the initial simulation model, and determining the cross-sectional area of ​​the copper bar; wherein the copper bar overlap region is formed by overlapping the copper bars;

[0008] A copper bar compensation area is set in the copper bar overlap area, and the target resistivity is determined using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar;

[0009] The material parameters of the copper busbar compensation area are modified according to the target resistivity to compensate the contact resistance into the initial simulation model of the motor controller filter to obtain the target simulation model.

[0010] Optionally, the target resistivity is determined using the length and contact resistance of the copper busbar overlap area and the cross-sectional area of ​​the copper busbar, including:

[0011] Determine a first product of the contact resistance and the cross-sectional area of ​​the copper busbar;

[0012] Divide the first product by the length of the copper bus overlap area to obtain the target resistivity.

[0013] Optionally, setting a copper bar compensation area in the copper bar overlap area includes setting a copper bar compensation area between copper bars in the copper bar overlap area, and modifying material parameters of the copper bar compensation area according to the target resistivity, including:

[0014] Set the density of the copper bar compensation area to be equal to the density of the copper bar; set the thermal conductivity of the copper bar compensation area to be equal to the thermal conductivity of the copper bar; set the specific heat capacity of the copper bar compensation area to be equal to the specific heat capacity of the copper bar; set the resistivity of the copper bar overlap area to be equal to the target resistivity.

[0015] Optionally, setting a copper bar compensation area in the copper bar overlap area includes setting the copper bar overlap area as the copper bar compensation area, and modifying material parameters of the copper bar compensation area according to the target resistivity:

[0016] Keep the density, thermal conductivity and specific heat capacity of the copper busbar compensation area unchanged; set the resistivity of the copper busbar overlap area to be equal to the target resistivity.

[0017] Optionally, the material of the copper busbar includes red copper or oxygen-free copper.

[0018] Optionally, the copper busbars are overlapped by screws, and the material of the screws includes low carbon alloy steel or medium carbon steel.

[0019] In a second aspect, the present invention provides a simulation device for a motor controller filter, comprising an acquisition module, a determination module, and a compensation module, wherein:

[0020] An acquisition module is electrically connected to the determination module, and is used to acquire an initial simulation model of the motor controller filter, and determine the length and contact resistance of the copper bar overlap area in the initial simulation model, and determine the cross-sectional area of ​​the copper bar, and send the length and contact resistance of the copper bar overlap area, and the cross-sectional area of ​​the copper bar to the determination module; wherein the copper bar overlap area is formed by overlapping the copper bars;

[0021] A determination module, electrically connected to the acquisition module and the compensation module, respectively, for setting a copper bar compensation area in the copper bar overlap area, and determining a target resistivity using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar;

[0022] The determination module is also used to send the target resistivity to the compensation module;

[0023] The compensation module is electrically connected to the determination module and is used to modify the material parameters of the copper busbar compensation area according to the target resistivity so as to compensate the contact resistance into the initial simulation model of the motor controller filter to obtain the target simulation model.

[0024] The simulation device of the motor controller filter provided by the present invention is intended to more realistically reflect the electrical characteristics of the motor controller filter under actual working conditions, reduce the error caused by ignoring the resistance of the overlapping area, and make the simulation result closer to the actual situation.

[0025] In a third aspect, the present invention provides a simulation device, comprising:

[0026] A processor and a memory, the memory is used to store computer program code, the computer program code includes computer instructions, when the processor executes the computer instructions, the simulation device of the motor controller filter executes the simulation method of the motor controller filter as the first aspect and any possible implementation method thereof.

[0027] The simulation device provided by the present invention is intended to more realistically reflect the electrical characteristics of the motor controller filter under actual working conditions, reduce the error caused by ignoring the resistance of the overlapping area, and make the simulation result closer to the actual situation.

[0028] In a fourth aspect, the present invention provides a computer-readable storage medium, comprising: computer instructions, which, when the computer instructions are run on a simulation device of a motor controller filter, enable the simulation device of the motor controller filter to execute a simulation method of a motor controller filter as in the first aspect and any possible implementation thereof.

[0029] The computer-readable storage medium provided by the present invention is intended to more realistically reflect the electrical characteristics of the motor controller filter under actual working conditions, reduce the error caused by ignoring the overlap area resistance, and make the simulation results closer to the actual situation.

[0030] In a fifth aspect, the present invention provides a computer program product, comprising: computer instructions, which, when the computer instructions are run on a simulation device of a motor controller filter, enable the simulation device of the motor controller filter to execute a simulation method of a motor controller filter as in the first aspect and any possible implementation thereof.

[0031] The computer program product provided by the present invention is intended to more realistically reflect the electrical characteristics of the motor controller filter under actual working conditions, reduce the error caused by ignoring the resistance of the overlapping area, and make the simulation result closer to the actual situation.

[0032] Compared with the prior art, the simulation method of the motor controller filter provided by the present invention achieves at least the following beneficial effects: obtaining the initial simulation model of the motor controller filter, and determining the length and contact resistance of the copper bar overlap area in the initial simulation model, and determining the cross-sectional area of ​​the copper bar; wherein the copper bar overlap area is formed by copper bar overlap. Further, a copper bar compensation area is set between the copper bars in the copper bar overlap area or in the copper bar overlap area, and the target resistivity is determined using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar. Thus, the material parameters of the copper bar compensation area can be modified according to the target resistivity to compensate the contact resistance to the initial simulation model of the motor controller filter, and the target simulation model is obtained. The above implementation method can more truly reflect the electrical characteristics of the motor controller filter under actual working conditions based on the target simulation model, reduce the error caused by ignoring the resistance of the overlap area, and make the simulation result closer to the actual situation.

[0033] Of course, any product implementing the present invention does not necessarily need to achieve all of the above technical effects at the same time.

[0034] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0036] Figure 1 It is a schematic diagram of the structure of a copper busbar provided by an embodiment of the present invention;

[0037] Figure 2 It is a flow chart of a simulation method of a motor controller filter provided by an embodiment of the present invention;

[0038] Figure 3 It is a structural schematic diagram of a simulation model provided by an embodiment of the present invention;

[0039] Figure 4 It is a structural schematic diagram of a simulation device for a motor controller filter provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0042] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] For ease of understanding, the background technology related to the present invention is first introduced:

[0046] The copper busbar is one of the main conductors in the motor controller. The connection between the copper busbar of the high-voltage filter and the supporting capacitor and the DC busbar is a fixed surface contact, which is mainly fixed by fasteners (such as bolts). Figure 1 As shown, copper bar 1 and copper bar 2 are pressed together by the torsion force of bolt 3. Since the surface of the copper bar is not absolutely smooth, the two copper bars do not fit completely at the microscopic level, so additional contact resistance is generated between the copper bars.

[0047] In the related art, the overlap between the copper bars in the simulation software is in an ideal state during the simulation process, that is, the copper bars are completely fitted together, which does not conform to the actual situation, and thus causes the contact resistance to be ignored, which means that the simulation results deviate greatly from the measured results.

[0048] In view of this, the present invention aims to provide a simulation method of a motor controller filter, a simulation device of a motor controller filter, a simulation device, a computer-readable storage medium and a computer program product, aiming to improve the accuracy of the simulation results of the motor controller filter so that the simulation results are closer to the actual measured results.

[0049] Example 1

[0050] Reference Figure 1 and Figure 2 , Figure 1 It is a schematic diagram of the structure of a copper busbar provided by an embodiment of the present invention; Figure 2 The present invention provides a flow chart of a method for simulating a motor controller filter provided by an embodiment of the present invention. The method for simulating a motor controller filter includes the following steps.

[0051] In step S11, an initial simulation model of the motor controller filter is obtained, and the length and contact resistance of the copper busbar overlap area in the initial simulation model are determined, as well as the cross-sectional area of ​​the copper busbar.

[0052] In step S12, a copper bar compensation area is set in the copper bar overlap area, and the target resistivity is determined by using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar.

[0053] In step S13, the material parameters of the copper busbar compensation area are modified according to the target resistivity to compensate the contact resistance into the initial simulation model of the motor controller filter to obtain the target simulation model.

[0054] Optionally, the material of the copper busbar includes red copper or oxygen-free copper.

[0055] Optionally, the copper busbars are overlapped by screws, and the material of the screws includes low carbon alloy steel or medium carbon steel.

[0056] In the above method, since copper or oxygen-free copper has excellent electrical conductivity, it can effectively reduce power loss and improve the efficiency of current transmission. At the same time, copper or oxygen-free copper has strong corrosion resistance, can maintain stable performance during long-term use, reduce the risk of oxidation and corrosion, and extend the service life of the copper busbar. Therefore, by choosing copper or oxygen-free copper as the material of the copper busbar, the electrical conductivity and corrosion resistance can be significantly improved.

[0057] In addition, the design of copper busbar overlapped by screws also enhances the firmness and reliability of assembly. Low carbon alloy steel or medium carbon steel is selected as the material of the screws, so that the screws have good mechanical strength and wear resistance, and can provide a solid connection to ensure that the copper busbar will not loosen or break during operation.

[0058] For example, the processor may obtain an initial simulation model, which includes copper bars overlapped with each other and can be used to simulate the behavior of copper bars in a motor controller filter. Figure 1 As shown, the initial simulation model includes Figure 1 Copper busbar 1 and copper busbar 2 are shown.

[0059] Further, the length and contact resistance of the copper bar overlap region in the initial simulation model and the cross-sectional area of ​​the copper bar can be determined. Thus, the target resistivity can be determined using the length and contact resistance of the copper bar overlap region and the cross-sectional area of ​​the copper bar.

[0060] For example, Figure 1 As shown, the initial simulation model includes the copper bar overlapping area 4. The present invention sets the copper bar compensation area between the copper bars in the copper bar overlapping area 4 or sets the copper bar overlapping area 4 as the copper bar overlapping area. The present invention is not limited to this and will be described in detail later.

[0061] For example, the contact resistance of the copper busbar overlap area can be obtained by the following formula:

[0062]

[0063] Wherein, R is the contact resistance of the copper busbar overlap area; P is the contact pressure of the copper busbar overlap area; S is the contact area of ​​the copper busbar overlap area; a is a coefficient related to the hardness of the copper busbar material; b is a proportional coefficient related to the surface roughness of the copper busbar; c is an index that depends on the contact form and the size of the contact pressure.

[0064] Optionally, the target resistivity is determined using the length and contact resistance of the copper bus overlap region and the cross-sectional area of ​​the copper bus, including: determining a first product of the contact resistance and the cross-sectional area of ​​the copper bus; and dividing the first product by the length of the copper bus overlap region to obtain the target resistivity.

[0065] For example, the target resistivity can be obtained by the following formula:

[0066] A 1 =R·n 1

[0067] Among them, ρ 1 is the target resistivity; A 1 is the first product; R is the contact resistance; n 1 is the cross-sectional area of ​​the copper busbar; l 1 is the length of the copper busbar overlap area.

[0068] For example, in order to make the calculation result of the target resistivity more accurate, the resistivity of the copper busbar itself can also be considered in the calculation process of the target resistivity, that is, the resistivity calculated above is added to the resistivity of the copper busbar itself in the contact area, so as to obtain a more accurate target resistivity.

[0069] For example, in order to improve the simulation accuracy, the processor can use the length and contact resistance of the copper busbar overlap area and the cross-sectional area of ​​the copper busbar to determine the target resistivity, and modify the material parameters of the copper busbar compensation area according to the target resistivity to compensate the contact resistance into the initial simulation model of the motor controller filter, thereby obtaining a target simulation model that is closer to the actual working conditions, thereby more accurately reflecting the electrical characteristics of the motor controller filter under actual working conditions.

[0070] Compared with the prior art, the simulation method of the motor controller filter provided by the present invention achieves at least the following beneficial effects: obtaining the initial simulation model of the motor controller filter, and determining the length and contact resistance of the copper bar overlap area in the initial simulation model, and determining the cross-sectional area of ​​the copper bar; wherein the copper bar overlap area is formed by copper bar overlap. Further, a copper bar compensation area is set between the copper bars in the copper bar overlap area or in the copper bar overlap area, and the target resistivity is determined using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar. Thus, the material parameters of the copper bar compensation area can be modified according to the target resistivity to compensate the contact resistance to the initial simulation model of the motor controller filter, and the target simulation model is obtained. The above implementation method can more truly reflect the electrical characteristics of the motor controller filter under actual working conditions based on the target simulation model, reduce the error caused by ignoring the contact resistance of the overlap area, and make the simulation result closer to the actual situation.

[0071] Example 2

[0072] Please refer to Figure 3 , Figure 3 Schematic diagram of a simulation model provided by an embodiment of the present invention. Figure 3 As shown, the copper bar 1 and the copper bar 2 are overlapped by screws 3, and the copper bar compensation area 5 is arranged between the copper bar 1 and the copper bar 2 in the copper bar overlap area.

[0073] Optionally, setting a copper bar compensation area in the copper bar overlap area includes setting a copper bar compensation area between copper bars in the copper bar overlap area, and modifying material parameters of the copper bar compensation area according to the target resistivity, including:

[0074] Set the density of the copper bar compensation area to be equal to the density of the copper bar; set the thermal conductivity of the copper bar compensation area to be equal to the thermal conductivity of the copper bar; set the specific heat capacity of the copper bar compensation area to be equal to the specific heat capacity of the copper bar; set the resistivity of the copper bar overlap area to be equal to the target resistivity.

[0075] The above method can reduce the influence of heat conduction on the contact resistance on the basis of compensating the contact resistance into the initial simulation model of the motor controller filter, so that the obtained simulation results can be closer to the actual situation.

[0076] Optionally, setting a copper bar compensation area in the copper bar overlap area includes setting the copper bar overlap area as the copper bar compensation area, and modifying material parameters of the copper bar compensation area according to the target resistivity, including:

[0077] Keep the density, thermal conductivity and specific heat capacity of the copper busbar compensation area unchanged; set the resistivity of the copper busbar overlap area to be equal to the target resistivity.

[0078] The above method can reduce the influence of heat conduction on the contact resistance on the basis of compensating the contact resistance into the initial simulation model of the motor controller filter, so that the obtained simulation results can be closer to the actual situation.

[0079] For example, the compensation resistor of the copper busbar compensation area is compensated to the initial simulation model of the motor controller filter to obtain the target simulation model, including: connecting the compensation resistor in series as an accessory resistor to the simulation circuit of the initial simulation model to obtain the target simulation model.

[0080] It should be easily appreciated by those skilled in the art that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0081] Example 3

[0082] Figure 4 is a schematic diagram of the structure of a simulation device for a motor controller filter provided by an embodiment of the present invention, such as Figure 4 As shown, the simulation device 200 of the motor controller filter includes an acquisition module 21 , a determination module 22 , and a compensation module 23 .

[0083] The acquisition module 21 is electrically connected to the determination module 22, and is used to acquire an initial simulation model of the motor controller filter, and determine the length and contact resistance of the copper bar overlap area in the initial simulation model, and determine the cross-sectional area of ​​the copper bar, and send the length and contact resistance of the copper bar overlap area, and the cross-sectional area of ​​the copper bar to the determination module 22; wherein the copper bar overlap area is formed by overlapping the copper bars;

[0084] A determination module 22, configured to set a copper bar compensation area in the copper bar overlap area, and determine a target resistivity using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar;

[0085] The determination module 22 is also used to send the target resistivity to the compensation module 23;

[0086] The compensation module 23 is electrically connected to the determination module 22 and is used to modify the material parameters of the copper busbar compensation area according to the target resistivity to compensate the contact resistance into the initial simulation model of the motor controller filter to obtain the target simulation model.

[0087] Optionally, the determination module 22 is further configured to determine a first product of the contact resistance and the cross-sectional area of ​​the copper busbar; and divide the first product by the length of the overlapping region of the copper busbar to obtain a target resistivity.

[0088] Optionally, the compensation module 23 is also used to set the density of the copper bar compensation area to be equal to the density of the copper bar; set the thermal conductivity of the copper bar compensation area to be equal to the thermal conductivity of the copper bar; set the specific heat capacity of the copper bar compensation area to be equal to the specific heat capacity of the copper bar; set the resistivity of the copper bar overlap area to be equal to the target resistivity.

[0089] Optionally, the compensation module 23 is further used to keep the density, thermal conductivity and specific heat capacity of the copper busbar compensation area unchanged; and set the resistivity of the copper busbar overlap area to be equal to the target resistivity.

[0090] Of course, the simulation device for the motor controller filter provided by the embodiment of the present invention includes but is not limited to the above modules.

[0091] The simulation device of the motor controller filter provided by the present invention is intended to more realistically reflect the electrical characteristics of the motor controller filter under actual working conditions, reduce the error caused by ignoring the resistance of the overlapping area, and make the simulation result closer to the actual situation.

[0092] Example 4

[0093] The embodiment of the present invention also provides a simulation device, which includes: a processor and a memory. The memory is used to store computer program code, and the computer program code includes computer instructions. When the processor executes the computer instructions, the simulation device of the motor controller filter executes each step executed by the simulation device of the motor controller filter in the method flow shown in the above method embodiment.

[0094] Example 5

[0095] An embodiment of the present invention also provides a computer-readable storage medium on which computer instructions are stored. When the computer instructions are run on a simulation device of a motor controller filter, the simulation device of the motor controller filter executes each step executed by the simulation device of the motor controller filter in the method flow shown in the above method embodiment.

[0096] Example 6

[0097] An embodiment of the present invention also provides a computer program product, which includes computer instructions. When the computer instructions are run on a simulation device of a motor controller filter, the simulation device of the motor controller filter executes each step executed by the simulation device of the motor controller filter in the method flow shown in the above method embodiment.

[0098] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A method for simulating a motor controller filter, characterized in that: The method comprises: Obtaining an initial simulation model of the motor controller filter, and determining the length and contact resistance of the copper bar overlap region in the initial simulation model, and determining the cross-sectional area of ​​the copper bar; wherein the copper bar overlap region is formed by overlapping the copper bars; A copper bar compensation area is set in the copper bar overlap area, and a target resistivity is determined by using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar; The material parameters of the copper busbar compensation area are modified according to the target resistivity to compensate the contact resistance into the initial simulation model of the motor controller filter to obtain a target simulation model.

2. The method according to claim 1, characterized in that The method of determining the target resistivity by using the length and contact resistance of the overlapping area of ​​the copper busbar and the cross-sectional area of ​​the copper busbar comprises: Determining a first product of the contact resistance and the cross-sectional area of ​​the copper busbar; The target resistivity is obtained by dividing the first product by the length of the copper busbar overlapping area.

3. The method according to claim 1, characterized in that The step of setting a copper bar compensation area in the copper bar overlap area includes setting a copper bar compensation area between the copper bars in the copper bar overlap area, and the step of modifying the material parameters of the copper bar compensation area according to the target resistivity includes: The density of the copper bar compensation area is set to be equal to the density of the copper bar; the thermal conductivity of the copper bar compensation area is set to be equal to the thermal conductivity of the copper bar; the specific heat capacity of the copper bar compensation area is set to be equal to the specific heat capacity of the copper bar; the resistivity of the copper bar overlap area is set to be equal to the target resistivity.

4. The method according to claim 1, characterized in that The step of setting a copper bar compensation area in the copper bar overlap area includes setting the copper bar overlap area as the copper bar compensation area, and the step of modifying the material parameters of the copper bar compensation area according to the target resistivity includes: The density, thermal conductivity and specific heat capacity of the copper busbar compensation area are kept unchanged; and the resistivity of the copper busbar overlap area is set to be equal to the target resistivity.

5. The method according to claim 1, characterized in that The material of the copper busbar includes red copper or oxygen-free copper.

6. The method according to claim 1, characterized in that The copper bars are overlapped by screws, and the material of the screws includes low carbon alloy steel or medium carbon steel.

7. A simulation device for a motor controller filter, characterized in that: It includes an acquisition module, a determination module, and a compensation module, among which: The acquisition module is electrically connected to the determination module, and is used to acquire an initial simulation model of the motor controller filter, and determine the length and contact resistance of the copper bar overlap area in the initial simulation model, and determine the cross-sectional area of ​​the copper bar, and send the length and contact resistance of the copper bar overlap area, and the cross-sectional area of ​​the copper bar to the determination module; wherein the copper bar overlap area is formed by overlapping the copper bars; The determination module is electrically connected to the acquisition module and the compensation module respectively, and is used to set a copper bar compensation area in the copper bar overlap area, and determine the target resistivity by using the length and contact resistance of the copper bar overlap area and the cross-sectional area of ​​the copper bar; The determination module is also used to send the target resistivity to the compensation module; The compensation module is electrically connected to the determination module and is used to modify the material parameters of the copper busbar compensation area according to the target resistivity to compensate the contact resistance into the initial simulation model of the motor controller filter to obtain a target simulation model.

8. A simulation device, characterized in that: include: A processor and a memory, wherein the memory is used to store computer program code, the computer program code includes computer instructions, and when the processor executes the computer instructions, the simulation device of the motor controller filter executes the simulation method of the motor controller filter as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that: include: Computer instructions, when the computer instructions are run on a simulation device of a motor controller filter, enable the simulation device of the motor controller filter to execute the simulation method of the motor controller filter as described in any one of claims 1-6.

10. A computer program product, the computer program product comprising: Computer instructions, when the computer instructions are run on a simulation device of a motor controller filter, enable the simulation device of the motor controller filter to execute the simulation method of the motor controller filter as described in any one of claims 1-6.

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