Design scheme generation method, device and equipment for relay wireless energy supply system

Abstract

The embodiment of the invention provides a design scheme generation method, device and equipment for a relay wireless energy supply system. The method comprises the steps that design parameters, input by a user, of the relay wireless energy supply system are acquired, and a field-circuit coupling model is constructed according to the design parameters on the basis of the two coil systems. And then, according to a preset sequence, performing verification of multiple links on the field-circuit coupling model according to the design parameters, and after the environmental influence verification is passed, obtaining an optimized field-circuit coupling model. And finally, according to the optimized field-circuit coupling model, generating a design scheme of the relay wireless energy supply system. Wherein the preset sequence comprises efficacy verification, insulation performance verification, thermal verification, parameter steady state verification, coexistence interference verification and environmental influence verification, the next link is executed after the verification of the previous link is passed, and if the verification is not passed, iterative adjustment of the field-circuit coupling model is triggered and / or subsequent verification is stopped. The method is used for achieving the effect of improving the accuracy of the design scheme.

Description

Technical Field

[0001] This application relates to the field of wireless power transmission technology, and in particular to a method, apparatus and equipment for generating design schemes for relay wireless power supply systems. Background Technology

[0002] In practical applications, in order to ensure the scientific validity and engineering feasibility of the design scheme of the relay wireless power supply system adapted to high-voltage transmission line scenarios, it is necessary to verify it before it is put into use.

[0003] Currently, the mainstream simulation verification method is decoupled analysis for a single scenario. Specifically, at the electromagnetic performance level, existing simulations focus on the coupling efficiency of high-frequency magnetic fields, calculating the transmission power and efficiency under different structural parameters by constructing equivalent circuits of coils and three-dimensional electromagnetic field models; at the insulation design level, simulations are limited to calculating the electric field distribution of a single insulator, using the finite element method to verify its breakdown safety margin; while thermal field simulations are usually based on steady-state models with fixed power losses to simulate the temperature distribution of components.

[0004] However, existing technologies suffer from poor accuracy in the design of relay wireless power supply systems. Summary of the Invention

[0005] This application provides a method, apparatus, and device for generating design schemes for relay wireless power supply systems, in order to improve the accuracy of design schemes.

[0006] In a first aspect, embodiments of this application provide a method for generating a design scheme for a relay wireless power supply system, including:

[0007] The design parameters of the relay wireless power supply system input by the user are obtained. The design parameters include target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of the insulators of the transmission line.

[0008] Based on the two-coil system, a field-circuit coupling model is constructed according to the design parameters;

[0009] According to a preset sequence, the field-circuit coupling model is verified in multiple stages based on the design parameters. The preset sequence includes efficacy verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification, and environmental impact verification. The next stage is executed after the previous stage is verified successfully. If the verification fails, iterative adjustment of the field-circuit coupling model is triggered and / or subsequent verification is stopped.

[0010] After the environmental impact verification is passed, the optimized field-path coupling model is obtained;

[0011] According to the optimized field-circuit coupling model, a design scheme of the relay wireless energy supply system is generated.

[0012] In a possible implementation, the field-circuit coupling model includes a three-dimensional electromagnetic model and an equivalent circuit model, and the performance verification of the field-circuit coupling model according to the design parameters includes:

[0013] In step a, the three-dimensional electromagnetic model and the equivalent circuit model are coupled and analyzed according to the design parameters, and system performance parameters and electrical parameters are obtained.

[0014] In step b, if the system performance parameters and the electrical parameters both meet the design parameters, it is determined that the field-circuit coupling model passes the performance verification.

[0015] In step c, if the system performance parameters and / or the electrical parameters do not meet the design parameters, the number of relay coils is increased by 1, and a new field-circuit coupling model is reconstructed in combination with the design parameters.

[0016] The steps a to c are repeatedly executed until the system performance parameters and the electrical parameters both meet the design parameters, and it is determined that the field-circuit coupling model passes the performance verification, or until the number of relay coils of the new field-circuit coupling model reaches the maximum number of coils, and subsequent verification is stopped.

[0017] In a possible implementation, the insulation performance verification of the field-circuit coupling model according to the design parameters includes:

[0018] According to the field-circuit coupling model and the design parameters, a high-voltage insulation system electric field model is constructed.

[0019] According to the high-voltage insulation system electric field model, bidirectional coupling analysis is performed on the high-voltage electric field corresponding to the voltage level and the structural mechanical properties of the insulator, and system potential distribution corresponding to the voltage level is calculated.

[0020] Based on the system potential distribution corresponding to the voltage level, field intensity distribution and voltage distribution of the insulator are determined.

[0021] If it is determined according to the field intensity distribution of the insulator that the field intensity of the insulator does not exceed the breakdown field intensity of the insulator, and it is determined according to the voltage distribution that the voltage bearing value of the insulator does not exceed the preset safety voltage threshold, it is determined that the field-circuit coupling model passes the insulation performance verification.

[0022] If it is determined according to the field intensity distribution of the insulator that the field intensity of the insulator exceeds the breakdown field intensity of the insulator, or it is determined according to the voltage distribution that the voltage bearing value of the insulator exceeds a preset safety voltage threshold, it is determined that the field-circuit coupling model fails to pass the insulator performance verification, and subsequent verification is stopped.

[0023] In a possible implementation, the thermal verification of the field-circuit coupling model according to the design parameters comprises:

[0024] According to the electromagnetic field distribution characteristics output by the three-dimensional electromagnetic model, power loss of each component is determined;

[0025] According to thermal characteristic parameters of different materials and the design parameters, a heat conduction model is constructed;

[0026] The power loss of each component is input into the heat conduction model, bidirectional coupling analysis of electromagnetic field distribution and temperature field change is performed, and thermal loss time sequence data of the relay coil is determined;

[0027] If it is determined according to the thermal loss time sequence data of the relay coil that each relay coil does not exceed a preset safety temperature threshold, it is determined that the field-circuit coupling model passes the thermal verification;

[0028] If it is determined according to the thermal loss time sequence data of the relay coil that any relay coil exceeds the preset safety temperature threshold, it is determined that the field-circuit coupling model fails to pass the thermal verification, and the step c is re-executed when the number of relay coils does not reach the maximum number of coils.

[0029] In a possible implementation, the coexistence interference verification of the field-circuit coupling model according to the design parameters comprises:

[0030] According to the design parameters and the field-circuit coupling model, a composite field source model of a power frequency high-voltage electromagnetic field and a high-frequency wireless charging electromagnetic field is constructed;

[0031] In the composite field source model, a three-dimensional finite element method is used to calculate spatial electromagnetic field distribution;

[0032] Based on the spatial electromagnetic field distribution, an electromagnetic interference degree between the relay wireless power supply system and the high-voltage transmission line is determined;

[0033] If the electromagnetic interference degree does not exceed a preset safety electromagnetic interference degree threshold, it is determined that the field-circuit coupling model passes the coexistence interference verification;

[0034] If the electromagnetic interference degree exceeds the preset safety electromagnetic interference degree, it is determined that the field-circuit coupling model fails to pass the coexistence interference verification, and subsequent verification is stopped.

[0035] In a possible implementation, the environment impact verification of the field-circuit coupling model according to the design parameters comprises:

[0036] constructing an environment parameter model comprising at least one of wind load, icing, and water film;

[0037] constructing a coupling model of the environment, the insulator, and the electromagnetic field according to the design parameters and the field-circuit coupling model;

[0038] simulating field distribution characteristics of the coupling model according to the environment parameter model;

[0039] determining stability of the field-circuit coupling model according to the field distribution characteristics;

[0040] if the stability of the field-circuit coupling model is higher than or equal to a preset safety stability threshold, determining that the field-circuit coupling model passes the environment impact verification;

[0041] if the stability of the field-circuit coupling model is lower than the preset safety stability threshold, determining that the field-circuit coupling model fails to pass the environment impact verification.

[0042] In a possible implementation, the parameter steady-state verification of the field-circuit coupling model according to the design parameters comprises:

[0043] determining a parameter variation of the component according to the time-series data of the heat loss of the component;

[0044] if the parameter variation does not exceed a preset safety parameter variation threshold, determining that the field-circuit coupling model passes the parameter steady-state verification;

[0045] if the parameter variation exceeds the preset safety parameter variation threshold, determining that the field-circuit coupling model fails to pass the parameter steady-state verification, and re-executing the step c when the number of relay coils does not reach the maximum number of coils.

[0046] In a second aspect, an embodiment of the present application provides a design scheme generation device for a relay wireless energy supply system, comprising:

[0047] a first obtaining module configured to obtain design parameters of a relay wireless energy supply system input by a user, the design parameters comprising target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of an insulator of a power transmission line;

[0048] a constructing module configured to construct a field-circuit coupling model according to the design parameters based on a two-coil system;

[0049] a verification module configured to verify the field-circuit coupling model according to the design parameters in a preset order; wherein the preset order comprises efficacy verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification, and environmental impact verification, and after the previous step verification is passed, the next step is executed, and if the verification is not passed, iterative adjustment of the field-circuit coupling model is triggered and / or subsequent verification is stopped;

[0050] a second acquisition module configured to acquire an optimized field-circuit coupling model after the environmental impact verification is passed;

[0051] a generation module configured to generate a design scheme of a relay wireless energy supply system according to the optimized field-circuit coupling model.

[0052] In a possible implementation, the field-circuit coupling model comprises a three-dimensional electromagnetic model and an equivalent circuit model, and the verification module is specifically configured to:

[0053] step a, performing coupling analysis on the three-dimensional electromagnetic model and the equivalent circuit model according to the design parameters to acquire system efficacy parameters and electrical parameters;

[0054] step b, if the system efficacy parameters and the electrical parameters both meet the design parameters, confirming that the field-circuit coupling model passes the efficacy verification;

[0055] step c, if the system efficacy parameters and / or the electrical parameters do not meet the design parameters, adding 1 to the number of relay coils, and reconstructing a new field-circuit coupling model in combination with the design parameters;

[0056] repeating the steps a to c until the system efficacy parameters and the electrical parameters both meet the design parameters, and determining that the field-circuit coupling model passes the efficacy verification; or, until the number of relay coils of the new field-circuit coupling model reaches the maximum number of coils, and stopping subsequent verification.

[0057] In a possible implementation, the verification module is specifically configured to:

[0058] constructing a high-voltage insulation system electric field model according to the field-circuit coupling model and the design parameters;

[0059] performing bidirectional coupling analysis on the high-voltage electric field corresponding to the voltage level and the structural mechanical properties of the insulator according to the high-voltage insulation system electric field model, and calculating the system potential distribution corresponding to the voltage level;

[0060] determining the field intensity distribution and the voltage distribution of the insulator based on the system potential distribution corresponding to the voltage level;

[0061] If it is determined according to the field strength distribution of the insulator that the field strength of the insulator does not exceed the breakdown field strength of the insulator, and it is determined according to the voltage distribution that the voltage bearing value of the insulator does not exceed the preset safety voltage threshold, it is determined that the field-circuit coupling model passes the insulator performance verification.

[0062] If it is determined according to the field strength distribution of the insulator that the field strength of the insulator exceeds the breakdown field strength of the insulator, or it is determined according to the voltage distribution that the voltage bearing value of the insulator exceeds the preset safety voltage threshold, it is determined that the field-circuit coupling model does not pass the insulator performance verification, and subsequent verification is stopped.

[0063] In a possible implementation, the verification module is specifically configured to:

[0064] According to the electromagnetic field distribution characteristics output by the three-dimensional electromagnetic model, the power loss of each component is determined;

[0065] According to the thermal characteristic parameters of different materials and the design parameters, a heat conduction model is constructed;

[0066] The power loss of each component is input into the heat conduction model, bidirectional coupling analysis of electromagnetic field distribution and temperature field change is performed, and the heat loss time sequence data of the relay coil is determined;

[0067] If it is determined according to the heat loss time sequence data of the relay coil that each relay coil does not exceed the preset safety temperature threshold, it is determined that the field-circuit coupling model passes the heat verification;

[0068] If it is determined according to the heat loss time sequence data of the relay coil that any relay coil exceeds the preset safety temperature threshold, it is determined that the field-circuit coupling model does not pass the heat verification, and the step c is re-executed when the number of relay coils does not reach the maximum number of coils.

[0069] In a possible implementation, the verification module is specifically configured to:

[0070] According to the design parameters and the field-circuit coupling model, a composite field source model of a power frequency high-voltage electromagnetic field and a high-frequency wireless charging electromagnetic field is constructed;

[0071] In the composite field source model, a three-dimensional finite element method is used to calculate the spatial electromagnetic field distribution;

[0072] Based on the spatial electromagnetic field distribution, the electromagnetic interference degree between the relay wireless power supply system and the high-voltage transmission line is determined;

[0073] If the electromagnetic interference degree does not exceed the preset safety electromagnetic interference degree threshold, it is determined that the field-circuit coupling model passes the coexistence interference verification;

[0074] If the electromagnetic interference degree exceeds the preset safe electromagnetic interference degree, it is determined that the field-circuit coupling model fails to pass the coexistence interference verification, and subsequent verification is stopped.

[0075] In a possible implementation, the verification module is specifically configured to:

[0076] construct an environmental parameter model containing at least one of wind load, icing, and water film;

[0077] construct a coupling model of the environment, the insulator, and the electromagnetism according to the design parameter and the field-circuit coupling model;

[0078] simulate field distribution characteristics of the coupling model according to the environmental parameter model;

[0079] determine stability of the field-circuit coupling model according to the field distribution characteristics;

[0080] If the stability of the field-circuit coupling model is higher than or equal to a preset safe stability threshold, it is determined that the field-circuit coupling model passes the environmental influence verification.

[0081] If the stability of the field-circuit coupling model is lower than the preset safe stability threshold, it is determined that the field-circuit coupling model fails to pass the environmental influence verification.

[0082] In a possible implementation, the verification module is specifically configured to:

[0083] determine a parameter variation of the component according to the thermal loss time sequence data of the component;

[0084] If the parameter variation does not exceed a preset safe parameter variation threshold, it is determined that the field-circuit coupling model passes the parameter steady-state verification.

[0085] If the parameter variation exceeds the preset safe parameter variation threshold, it is determined that the field-circuit coupling model fails to pass the parameter steady-state verification, and the step c is re-executed when the number of relay coils does not reach the maximum number of coils.

[0086] In a third aspect, an electronic device is provided, including: a memory, a processor;

[0087] The memory stores computer execution instructions.

[0088] The processor executes the computer execution instructions stored in the memory, so that the processor executes the first aspect and / or various possible implementations of the first aspect.

[0089] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, wherein computer execution instructions are stored in the computer readable storage medium, and the computer execution instructions are executed by a processor to implement the first aspect and / or various possible implementation manners of the first aspect.

[0090] In a fifth aspect, an embodiment of the present application provides a computer program product, comprising a computer program, and the computer program is executed by a processor to implement the first aspect and / or various possible implementation manners of the first aspect.

[0091] The method, device and equipment for generating a design scheme of a relay wireless power supply system provided by the embodiments of the present application build a full-process framework of the design scheme of the relay wireless power supply system, obtain design parameters in dimensions of covering power, efficiency, voltage level and the like, build a field-circuit coupling model based on a two-coil system, and then perform progressive verification and iterative adjustment in multiple links of efficiency, insulation, heat and the like, thereby effectively overcoming the limitations of the existing single field simulation method. The multiple-link verification can comprehensively cover key requirements such as high-voltage insulation, heat management and electromagnetic compatibility, and through the logic of iterative adjustment / stop if the verification fails, the design scheme can be ensured to adapt to power transmission lines of different voltage levels, and invalid design redundancy can be avoided, so that the finally output design scheme can directly support engineering implementation, and the rationality and feasibility of the multi-relay wireless power supply system in a complex high-voltage scene are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0092] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0093] Figure 1 An interface schematic diagram of an electro-magnetic-thermal integrated simulation platform provided by the present application;

[0094] Figure 2 A flowchart of a method for generating a design scheme of a relay wireless power supply system provided by the present application;

[0095] Figure 3 A flowchart of a method for generating a design scheme of a relay wireless power supply system provided by the present application Figure Two ;

[0096] Figure 4 A flowchart of a method for generating a design scheme of a relay wireless power supply system provided by the present application Figure Three ;

[0097] Figure 5 A flowchart of a method for generating a design scheme of a relay wireless power supply system provided by the present application Figure Four ;

[0098] Figure 6 Flowchart of the method for generating a design scheme for a relay wireless energy supply system provided in the present application Figure Five

[0099] Figure 7 Flowchart of the method for generating a design scheme for a relay wireless energy supply system provided in the present application Figure Six

[0100] Figure 8 Flowchart of the method for generating a design scheme for a relay wireless energy supply system provided in the present application Figure Seven

[0101] Figure 9 Flowchart of the method for generating a design scheme for a relay wireless energy supply system provided in the present application Figure Eight

[0102] Figure 10 Structural diagram of the device for generating a design scheme for a relay wireless energy supply system provided in the present application

[0103] Figure 11 Structural diagram of the electronic device provided in the present application.

[0104] The specific embodiments of the present application have been shown in the above-described drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0105] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar components. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0106] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards, and provide corresponding operation portal for user to choose authorization or refusal.

[0107] First, the application scenarios involved in the present application are explained and described:

[0108] ​​​​In practical applications, in order to ensure the scientificity and engineering feasibility of the design scheme of the relay wireless power supply system adapted to the high-voltage power transmission line scene, it needs to be verified before landing application. Considering the special operating environment of the relay wireless power supply system, the complex action of multiple physical phenomena such as high-voltage electrostatic field, high-frequency electromagnetic field and Joule heat field, it is difficult to cover all kinds of risks in actual working conditions through theoretical derivation or empirical design. Simulation verification can accurately reproduce the operating state of the relay wireless power supply system, quantify core performance indicators such as transmission efficiency and power stability in advance, and predict potential problems such as insulation failure and thermal runaway, providing direct quantitative basis for parameter optimization and structure improvement, thereby reducing subsequent research and development trial and error costs and ensuring that the final scheme can adapt to the safety operation requirements in high-voltage and complex electromagnetic environment, so it has become an indispensable key link in the verification process of the relay wireless power supply system.

[0109] At present, the mainstream simulation verification method is decoupled analysis for a single scene. Specifically, in terms of electromagnetic performance, existing simulations focus on the coupling efficiency of high-frequency magnetic fields, calculate the transmission power and efficiency under different structural parameters by constructing a coil equivalent circuit and a three-dimensional electromagnetic field model, but often do not consider the interference of other physical fields; in terms of insulation design, simulation is limited to the calculation of electric field distribution of a single insulator, and the finite element method is used to verify the breakdown safety margin, but the indirect influence of other factors on insulation performance is ignored; and thermal field simulation is usually based on a steady-state model with fixed power loss to simulate component temperature distribution, and cannot form a dynamic correlation with electromagnetic parameters. This single-field analysis approach essentially involves a trade-off between isolation and coupling to reduce simulation difficulty.

[0110] However, in actual engineering applications, the relay wireless power supply system is always under the influence of the interaction of high-voltage electrostatic field, high-frequency alternating magnetic field and device thermal field, forming a close electro-magnetic-thermal coupling chain: circuit parameters determine magnetic field strength, magnetic field changes cause coil current fluctuations, and heat generated by current loss causes core parameters such as dielectric constant and magnetic permeability to drift, which in turn affects system performance. The inherent defects of single-field decoupled simulation make it impossible to establish a comprehensive model reflecting this parameter chain effect, resulting in significant deviations between the design scheme and actual working conditions. More importantly, this fragmented analysis cannot support the coordinated optimization of insulation, electromagnetic compatibility and thermal management, and the magnetic field coupling is more complex with multiple relay coils, superimposing differences in electric field of different voltage levels and thermal accumulation effects, so single-field analysis cannot depict the overall law, ultimately leading to significant deviations between simulation results and actual working conditions, insufficient system stability and limited transmission efficiency, which seriously restricts the large-scale landing of the technology.

[0111] In summary, the existing technology has the technical problem of poor accuracy of the design scheme of the relay wireless power supply system.

[0112] Based on the above technical problems, the technical concept of the present application is as follows: the inventors noticed that the reliable design of the relay wireless power supply system needs to consider the integrity of the basic model and the progressiveness of the verification link: comprehensive input of design parameters is the premise to ensure that the model fits the actual scene, the field-circuit coupling model can effectively integrate electromagnetic and circuit characteristics, and the progressive verification of multiple links can anchor key indicators under different working conditions one by one, avoiding the accumulation of single link deviation. Therefore, the inventors consider that the core design parameters such as target power, efficiency, voltage level, etc. can be comprehensively collected, a field-circuit coupling model is constructed based on a two-coil system, and a progressive process of efficiency verification-insulation performance verification-thermal verification-parameter steady-state verification-coexistence interference verification-environmental impact verification is carried out for multi-dimensional verification. The next link is pushed forward after the previous link passes, and iteration adjustment is triggered in time if it fails, thereby improving the accuracy of the relay wireless power supply system design scheme through the comprehensive design scheme of full parameter input-basic model construction-multi-link progressive verification-closed loop iteration.

[0113] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0114] Firstly, the electro-magnetic-thermal integrated simulation platform is explained and described, which realizes comprehensive performance analysis and optimization design of the relay wireless power supply system under complex working conditions by integrating multi-physical field coupling simulation technology, and provides accurate theoretical basis and engineering guidance for system optimization design.

[0115] Figure 1 The interface schematic diagram of the electro-magnetic-thermal integrated simulation platform provided by the present application is shown as Figure 1 The electro-magnetic-thermal integrated simulation platform includes an input module, a core analysis engine module, and an output module, the core analysis engine module includes a field-circuit coupling engine, an insulation performance analysis engine, a thermal analysis engine, a coexistence interference analysis engine, and an extreme environment influence analysis engine.

[0116] The input module is used to obtain the design parameters input by the user, which includes target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of the insulator of the power transmission line. These parameters will be sorted and matched through system parameter selection and configuration, and the processed data will enter the core analysis engine module for subsequent processing.

[0117] Specifically, the field-circuit coupling engine outputs system power parameters and electrical parameters, and completes electrical parameter analysis and system efficiency evaluation; the insulation performance analysis engine is dedicated to the insulation safety of high-voltage scenes, and outputs the field intensity distribution and voltage distribution of insulators; the thermal analysis engine first obtains the thermal loss time sequence data of components, and then analyzes the influence of thermal loss on hardware; the coexistence interference analysis engine first outputs the spatial electromagnetic field distribution, and then determines the electromagnetic interference degree; and the extreme environment influence analysis engine respectively performs icing influence analysis, water film influence analysis, and wind deflection influence analysis.

[0118] These analysis results are finally summarized to the output module, and integrated to form five categories of achievements: system design parameters, spatial electromagnetic field distribution, insulation performance analysis, thermal field distribution evaluation, and extreme environment influence evaluation. The system design parameters cover power, efficiency, output voltage, coil number, coil spacing, and electrical parameters of each component; the spatial electromagnetic field distribution includes system spatial magnetic field distribution cloud map, system parameter analysis under high-voltage intensity, and system spatial electromagnetic field maximum and minimum value; the insulation performance analysis includes system component potential distribution cloud map and insulation performance evaluation under high-voltage field intensity; the thermal field distribution evaluation includes component loss distribution and thermal distribution data; and the extreme environment influence evaluation corresponds to a safety evaluation report under extreme environment, which is finally summarized as a full-dimensional design report covering system performance, insulation safety, thermal characteristics, and environmental adaptability, thereby providing comprehensive support for engineering design and landing of the multi-relay wireless power supply system.

[0119] It should be understood that the design scheme generation method for the relay wireless power supply system based on the electro-magnetic-thermal integrated simulation platform will be specifically described in subsequent embodiments, which will not be repeated here.

[0120] Figure 2 Flowchart of the design scheme generation method for the relay wireless power supply system provided in the present application Figure One As shown in Figure 2 , the method comprises:

[0121] S21, obtaining the design parameters of the relay wireless power supply system input by a user.

[0122] The execution subject of the embodiment of the present application is an electronic device, which can be a terminal device such as a notebook computer, a desktop computer, a tablet computer, etc., and can also be a server. In actual application, whether the electronic device is a terminal device or a server can be determined according to actual conditions, and no specific limitation is made thereto.

[0123] The design parameters include target power, target efficiency, coil type, maximum coil number, output voltage, input voltage, voltage level, and insulation distance of the insulator of the power transmission line.

[0124] Next, each of the parameters in the design parameters is specifically explained.

[0125] The target power refers to the power that the user expects the relay wireless power supply system to output to the load.

[0126] The target efficiency refers to the ratio of the system output power to the input power expected by the user, used to reflect the degree of energy loss in the wireless transmission process.

[0127] The coil type refers to the material and structure type used by the coil that makes up the relay wireless power supply system. It should be understood that different coil types will affect the magnetic field coupling strength and circuit parameter characteristics.

[0128] For example, the structure type of the coil can be a hollow coil, a magnetic core coil, etc.

[0129] The maximum number of coils refers to the maximum number of relay coils that the user sets to allow the relay wireless power supply system to contain.

[0130] The output voltage refers to the voltage value provided by the relay wireless power supply system to the load end.

[0131] The input voltage refers to the input voltage value provided by the relay wireless power supply system from the high-voltage transmission line side or external power supply.

[0132] The voltage class refers to the voltage standard of the high-voltage transmission line to which the relay wireless power supply system is adapted, such as 110kV, 220kV, etc., used to determine the strength of the high-voltage environment in which the relay wireless power supply system is located.

[0133] The insulation distance of the insulator of the transmission line refers to the safe insulation distance required by the insulator under the voltage class, used to ensure that the relay wireless power supply system does not experience insulation breakdown in a high-voltage environment.

[0134] In actual application, the input module can be used to obtain the design parameters input by the user.

[0135] S22, based on a two-coil system, a field-circuit coupling model is constructed according to the design parameters.

[0136] The two-coil system refers to a wireless energy transmission topology composed of one transmitting coil and one receiving coil.

[0137] The field-circuit coupling model is a comprehensive model that integrates a three-dimensional electromagnetic model and an equivalent circuit model, used to realize bidirectional linkage analysis of electromagnetic field distribution and circuit parameters. That is, the field-circuit coupling model can determine the magnetic field coupling strength between coils, spatial electromagnetic field distribution, and other field-side characteristics, and can also reflect impedance, resonance frequency, quality factor, and other road-side electrical parameter characteristics.

[0138] In a specific implementation, a three-dimensional electromagnetic model of the relay wireless power supply system is constructed by the three-dimensional electromagnetic field simulation unit, and an equivalent circuit model is constructed by the circuit parameter analysis unit.

[0139] S23, according to the preset order, the field-circuit coupling model is verified in multiple links according to the design parameters.

[0140] Among them, the preset order includes efficacy verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification and environmental impact verification, after the previous link verification is passed, the next link is executed, and if the verification fails, the iteration adjustment of the field-circuit coupling model is triggered and / or the subsequent verification is stopped.

[0141] Next, the verification of each link is specifically explained:

[0142] The efficacy verification refers to the link of verifying whether the transmission efficiency of the field-circuit coupling model reaches the target efficiency, whether the output power meets the target power, and confirming whether the impedance, resonance frequency and other circuit parameters meet the design parameters.

[0143] The insulation performance verification is a verification link for high-voltage scenarios. It analyzes the field intensity distribution of the insulator under high-voltage electric field, judges whether the field intensity exceeds the breakdown field intensity, and whether the voltage withstand value is within the preset safety voltage threshold.

[0144] The thermal verification refers to the link of analyzing the heat loss distribution and temperature field change of the coil and other system components, and judging whether the temperature exceeds the preset safety temperature threshold, so as to avoid hardware damage due to overheating of the relay wireless power supply system.

[0145] The parameter steady-state verification refers to the link of verifying whether the parameter fluctuation of the components caused by temperature change and other factors is within the safe range, so as to ensure the performance stability of the relay wireless power supply system in the long-term operation process.

[0146] The coexistence interference verification refers to the link of verifying whether the field intensity of the components is within the safe range after the superposition of the power frequency high-voltage electromagnetic field and the high-frequency wireless charging electromagnetic field, so as to avoid the influence of electromagnetic interference on the safety and performance of the relay wireless power supply system.

[0147] The environmental impact verification refers to the link of verifying whether the stability of the system meets the standard under extreme environmental conditions such as wind load and icing. That is, it is judged whether the stability of the relay wireless power supply system is higher than or equal to the preset safety stability threshold

[0148] It should be understood that each verification link will be specifically explained in the following embodiments, which will not be repeated here.

[0149] S24, after the environmental impact verification is passed, the optimized field-circuit coupling model is obtained.

[0150] The optimized field-circuit coupling model refers to a field-circuit coupling model that meets all design requirements of target power, target efficiency, insulation safety, thermal stability, electromagnetic compatibility and environmental adaptation after multiple rounds of verification and iterative adjustment (such as adding relay coils).

[0151] S25, generating a design scheme of the relay wireless power supply system according to the optimized field-circuit coupling model.

[0152] The design scheme of the relay wireless power supply system refers to a document containing specific parameters of each component of the system, insulation structure size, thermal management scheme, installation requirements and performance evaluation conclusion, etc., which is a standardized result that can be used for engineering implementation.

[0153] In an actual application, the design scheme of the relay wireless power supply system can be output by the output module, which can be displayed in the form of a report. The report includes system power, efficiency, output voltage, number of coils, coil spacing and electrical parameters of each part; spatial electromagnetic field distribution, including system spatial electromagnetic field distribution cloud map, system parameters under high voltage field strength and maximum and minimum values of system spatial electric field; system component potential distribution cloud map and insulation performance evaluation results under high voltage field strength reflecting the insulation performance of the system; system component loss distribution and thermal distribution data; safety evaluation report under extreme environment, etc., to provide comprehensive basis for system design.

[0154] The method provided by the embodiment of the application for generating a design scheme of a relay wireless power supply system comprises the following steps: obtaining design parameters of the relay wireless power supply system input by a user, constructing a field-circuit coupling model based on a two-coil system according to the design parameters, verifying the field-circuit coupling model according to the design parameters in a preset order, obtaining an optimized field-circuit coupling model after environmental influence verification, and generating a design scheme of the relay wireless power supply system according to the optimized field-circuit coupling model. The design parameters comprise target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of an insulator of a power transmission line. The preset order comprises power and efficiency verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification, and environmental influence verification. The next step is performed after the previous step is verified, and iteration adjustment of the field-circuit coupling model and / or stopping of subsequent verification is triggered if the verification fails. In the technical scheme, a full-process framework of the design scheme of the relay wireless power supply system is constructed, the field-circuit coupling model is built based on the two-coil system by obtaining design parameters covering power, efficiency, voltage level and other dimensions, and the limitations of the existing single field simulation method are effectively overcome through progressive verification and iteration adjustment of multiple steps such as power and efficiency, insulation, and heat. The multiple-step verification can comprehensively cover key requirements such as high-voltage insulation, thermal management, and electromagnetic compatibility, and through the logic of iteration adjustment / stoppage triggered by failed verification, the design scheme can be adapted to power transmission lines of different voltage levels and invalid design redundancy can be avoided, so that the finally output design scheme can directly support engineering implementation and significantly improve the rationality and feasibility of the multi-relay wireless power supply system in complex high-voltage scenarios.

[0155] Figure 3 Flowchart of the method for generating a design scheme of a relay wireless power supply system provided by the application Figure Two As shown in Figure 3 , the power and efficiency verification of the field-circuit coupling model according to the design parameters comprises the following steps:

[0156] Step a: coupling analysis is performed on the three-dimensional electromagnetic model and the equivalent circuit model according to the design parameters to obtain system power and electrical parameters.

[0157] The three-dimensional electromagnetic model is a field-side sub-module of the field-circuit coupling model, is responsible for determining the magnetic field coupling strength and spatial electromagnetic field distribution between coils, and is a core carrier for obtaining energy transmission capability related data. The equivalent circuit model is a road-side sub-module of the field-circuit coupling model, is responsible for determining the impedance, resonance frequency, and quality factor of the relay wireless power supply system, and is a core tool for analyzing the state of electrical energy conversion and transmission.

[0158] Among them, coupling analysis refers to an analysis method that allows the magnetic field data of the three-dimensional electromagnetic model and the circuit parameters of the equivalent circuit model to be linked and mutually corrected in a two-way manner. In fact, it restores the actual operating logic of the magnetic field affecting the circuit and the circuit reacting to the magnetic field.

[0159] System performance parameters are a set of parameters reflecting the energy transmission performance of the system, mainly including transmission efficiency and output power. They are the core indicators for judging whether the system meets performance requirements. Electrical parameters are a set of parameters reflecting the operating state of the system circuit, mainly including impedance, resonant frequency, and quality factor. They are key indicators for ensuring the stable operation of the system circuit.

[0160] In one specific implementation, a collaborative optimization unit is invoked to determine the electromagnetic field distribution characteristics, such as the magnetic field coupling coefficient and coil parasitic parameters, obtained from the calculation of the three-dimensional electromagnetic model based on the design parameters. These electromagnetic field distribution characteristics are then input into the equivalent circuit model. Furthermore, the power supply excitation parameters of the equivalent circuit model are fed back to the three-dimensional electromagnetic model to achieve bidirectional linkage calculation between the two sub-models, ultimately outputting the system's power efficiency parameters and electrical parameters.

[0161] Step b: If the system performance parameters and electrical parameters both meet the design parameters, then the field-circuit coupling model is confirmed to have passed the performance verification.

[0162] If the transmission efficiency meets the target efficiency, the power meets the target power, and the impedance, resonant frequency, and quality factor all meet the corresponding index values ​​of the design parameters, then the field-circuit coupling model is confirmed to have passed the effectiveness verification.

[0163] Step c: If the system efficiency parameters and / or electrical parameters do not meet the design parameters, increase the number of relay coils by 1 and reconstruct a new field-circuit coupling model based on the design parameters.

[0164] The system's performance parameters and / or electrical parameters not meeting the design parameters refer to: transmission efficiency not meeting the target efficiency, or power not meeting the target power, or any one of impedance, resonant frequency, and quality factor not meeting the corresponding index value of the design parameters.

[0165] The addition of 1 to the number of relay coils refers to adding a relay coil between the transmitting and receiving coils in the current field-circuit coupling model. This is done to enhance the magnetic field coupling strength, reduce coil current loss, and thus improve the system efficiency parameters.

[0166] Reconstructing a new field-circuit coupling model refers to rebuilding a three-dimensional electromagnetic model and an equivalent circuit model based on the adjusted number of relay coils and design parameters, establishing the coupling relationship between the two, and thus forming a new model that can be analyzed again.

[0167] Repeat steps a through c until the system's performance and electrical parameters meet the design parameters, confirming that the field-circuit coupling model has passed performance verification. Alternatively, continue verification until the number of relay coils in the new field-circuit coupling model reaches the maximum number of coils.

[0168] The process of repeatedly executing steps a to c can be achieved through iterative solution units.

[0169] It should be understood that the aforementioned three-dimensional electromagnetic field simulation unit, circuit parameter analysis unit, and iterative solution unit all belong to the field-circuit coupling engine.

[0170] It should be understood that when the number of relay coils in the new field-circuit coupling model reaches the maximum number of coils, the integrated electro-magnetic-thermal simulation platform can also output a "Solution does not exist" message.

[0171] In the above embodiments, by coupling analysis of the three-dimensional electromagnetic model and the equivalent circuit model in the field-circuit coupling model, system efficiency parameters and electrical parameters can be obtained simultaneously, accurately matching the target power, efficiency, and circuit characteristic requirements. When the efficiency or electrical parameters do not meet the standards, iterative adjustment by increasing the number of relay coils by one can effectively enhance the magnetic field coupling strength, reduce coil current loss, and improve the system efficiency matching degree. At the same time, limiting the maximum number of coils avoids resource waste caused by coil redundancy. This scheme realizes dynamic optimization of system efficiency, ensuring that the design results can stably meet the preset core indicators such as power and efficiency.

[0172] Figure 4 A flowchart illustrating the design scheme generation method for a relay wireless power supply system provided in this application. Figure Three ,like Figure 4 As shown, the insulation performance verification of the field-circuit coupling model based on the design parameters includes:

[0173] S41. Based on the field-circuit coupling model and design parameters, construct the electric field model of the high-voltage insulation system.

[0174] It should be understood that the field-circuit coupling model in this step refers to a model that has passed efficacy verification.

[0175] Among them, the electric field model of the high-voltage insulation system is an electric field simulation model that integrates coils, insulators and high-voltage environment.

[0176] In one possible implementation, based on a field-circuit coupling model that has passed efficacy verification, the structural parameters of the coil are extracted. Combined with the voltage level and insulation distance of the insulator in the design parameters, an electric field model of a high-voltage insulation system including the coil and insulator is built through an electric field modeling unit. The electric field strength corresponding to the voltage level is used as the excitation condition of the electric field model of the high-voltage insulation system.

[0177] S42. Based on the electric field model of the high-voltage insulation system, a two-way coupling analysis is performed on the high-voltage electric field corresponding to the voltage level and the structural mechanical properties of the insulator, and the system potential distribution corresponding to the voltage level is calculated.

[0178] Among them, the high-voltage electric field refers to the electric field intensity field corresponding to the voltage level in the design parameters, which is the external excitation factor that causes structural mechanical changes in the insulator.

[0179] Among them, the structural mechanical properties of an insulator refer to the mechanical state of the insulator under the action of a high-voltage electric field, such as deformation, stress distribution, and displacement. These properties will change the insulation distance and dielectric distribution of the insulator, thereby affecting the safety of the electric field distribution.

[0180] Among them, the electric field distribution of a high-voltage electric field refers to the distribution state of electric field intensity within the system space under high-voltage conditions.

[0181] Specifically, two-way coupling analysis refers to an analysis method that links and iteratively corrects the electric field distribution and structural mechanical properties: first, the structural mechanical changes are calculated through the electric field distribution, and then the electric field distribution is adjusted based on the structural mechanical changes. This process is repeated until the data converges, thereby restoring the dynamic relationship between the electric field and the structure in actual operation.

[0182] In one possible implementation, a high-voltage electric field of the specified voltage level is applied to the electric field model of the high-voltage insulation system. The structural mechanical properties of the insulators under this electric field, such as deformation, stress concentration areas, and spatial displacement, are simulated and extracted using a structural mechanics analysis unit. Then, the insulation boundary adjustment data caused by these structural mechanical properties is fed back to the high-voltage insulation system electric field model via a coupled analysis unit to recalculate the electric field distribution. This process is repeated until the changes in the electric field distribution and structural mechanical properties are less than a preset threshold, ultimately outputting the system potential distribution corresponding to the voltage level.

[0183] S43. Determine the field strength distribution and voltage distribution of the insulator based on the system potential distribution corresponding to the voltage level.

[0184] Among them, the electric field strength distribution of an insulator refers to the numerical distribution of electric field strength at various locations on and inside the insulator surface.

[0185] In one possible implementation, the gradient of the system's potential distribution is calculated using the mathematical relationship between electric field and potential, extracting the electric field strength values ​​at various locations on and inside the insulator to generate the insulator's electric field distribution. Further, based on the insulator's structural dimensions, the potential values ​​at both ends of the insulator and between each shed are extracted from the system's potential distribution. By calculating the potential difference between these two points, the voltage distribution of the insulator is obtained.

[0186] S44. If the field strength of the insulator does not exceed the breakdown field strength of the insulator based on the field strength distribution of the insulator, and the voltage withstand value of the insulator does not exceed the preset safe voltage threshold based on the voltage distribution, then the field-circuit coupling model is determined to have passed the insulation performance verification.

[0187] The breakdown field strength of an insulator refers to the maximum electric field strength that the insulator material can withstand. In other words, once the field strength exceeds this value, the insulator will experience insulation breakdown.

[0188] It should be understood that the breakdown field strength of the insulator in this application can be a preset value set in advance based on experimental data or empirical values, or it can be a value calculated by using physical formulas through design parameters. This application does not impose specific limitations on this.

[0189] The preset safe voltage threshold is the upper limit of safe voltage determined based on the voltage level in the design parameters and the preset insulator model. It is a voltage constraint condition to ensure the stable operation of the insulator.

[0190] S45. If the field strength of the insulator exceeds the breakdown field strength of the insulator based on the field strength distribution, or if the voltage withstand value of the insulator exceeds the preset safe voltage threshold based on the voltage distribution, then the field-circuit coupling model is determined to have failed the insulation performance verification, and subsequent verification is stopped.

[0191] In practical applications, the above two steps S44-S45 can be performed through the insulation performance evaluation unit.

[0192] It should be understood that when it is determined that the field-circuit coupling model has failed the insulation performance verification, the integrated electro-magnetic-thermal simulation platform can also output a "Solution does not exist" message.

[0193] It should be understood that the electric field modeling unit, structural mechanics analysis unit, coupling analysis unit, and insulation performance evaluation unit all belong to the insulation performance analysis engine.

[0194] In the above embodiments, by constructing an electric field model of the high-voltage insulation system and conducting a two-way coupling analysis of the high-voltage electric field and the mechanical properties of the insulator structure, the dynamic closed-loop influence of electric field action, structural deformation, and electric field reconstruction can be accurately reproduced, thereby obtaining the field strength distribution and voltage distribution data of the insulator. Through a dual judgment logic of insulator breakdown field strength and a preset safe voltage threshold, the risk of insulation breakdown under high-voltage conditions can be effectively avoided. Simultaneously, it adapts to the insulation distance requirements corresponding to different voltage levels, providing a reliable insulation design guarantee for the safe operation of the system under different high-voltage transmission lines such as 110kV and 220kV.

[0195] Figure 5 A flowchart illustrating the design scheme generation method for a relay wireless power supply system provided in this application. Figure Four,like Figure 5 As shown, the thermal verification of the field-circuit coupling model based on the design parameters includes:

[0196] S51. Based on the electromagnetic field distribution characteristics output by the three-dimensional electromagnetic model, determine the power loss of each component.

[0197] It should be understood that electromagnetic field distribution characteristics include data such as magnetic field density between coils, induced current distribution, and eddy current distribution, which can be used to reflect the state of electrical energy transmission and loss.

[0198] The power loss of each component refers to the energy loss caused by electromagnetic effects in components such as coils and magnetic cores within the system. It should be understood that the lost electrical energy is ultimately converted into heat energy, which is the direct cause of the temperature rise.

[0199] In one possible implementation, electromagnetic field distribution data of a three-dimensional electromagnetic model is extracted from a field-circuit coupling model that has passed insulation performance verification. Combined with information such as coil type and number of turns in the design parameters, the power loss of each component, such as the transmitting coil, receiving coil, relay coil, and magnetic core, is calculated by a loss calculation unit.

[0200] S52. Construct a heat conduction model based on the thermal properties and design parameters of different materials.

[0201] Among them, the thermal characteristic parameters of different materials refer to parameters such as the thermal conductivity of the coil material, the specific heat capacity, the thermal conductivity of the magnetic core, and the heat dissipation characteristics of the insulator. These characteristics are used to determine the speed and efficiency of heat transfer inside and between components.

[0202] Among them, the heat conduction model refers to a simulation model that simulates the heat generation, conduction, and heat dissipation process of a system, and is used to present the distribution of heat in various components and the change law over time.

[0203] In one possible implementation, thermal characteristic parameters of components such as coils, magnetic cores, and insulators are collected. Combined with structural information such as coil size and installation spacing corresponding to the coil type in the design parameters, a thermal conduction model is built through a thermal conduction modeling unit, and boundary conditions such as ambient temperature and heat dissipation method are set for the thermal conduction model.

[0204] S53. Input the power loss of each component into the heat conduction model, perform bidirectional coupling analysis of electromagnetic field distribution and temperature field change, and determine the heat loss timing data of the relay coil.

[0205] Among them, temperature field change refers to the change of temperature values ​​and distribution of various components in the relay wireless power supply system over time.

[0206] Among them, bidirectional coupling analysis refers to the cyclic correction analysis of electromagnetic field → thermal field → electromagnetic field: first, heat loss is calculated through electromagnetic field, then temperature is calculated through heat loss, and finally the electromagnetic parameters of the component are corrected by temperature change, and the electromagnetic field and heat loss are recalculated until the data converges, so as to restore the dynamic correlation in actual operation.

[0207] Among them, the heat loss time series data of the relay coil refers to the continuous data of the power loss of the relay coil at different operating times and the corresponding temperature changes over time.

[0208] In one possible implementation, the power loss of each component is input as a heat source into the heat conduction model. An initial temperature field distribution is first calculated using an electromagnetic-thermal coupling analysis unit, and the temperature data of the relay coil is extracted based on this initial temperature field distribution. Then, based on the material temperature coefficient and the relay coil temperature data, the relay coil resistance value is corrected and fed back to the three-dimensional electromagnetic model to recalculate the electromagnetic field distribution and the new power loss. The new power loss is then input back into the heat conduction model to update the temperature field, and this coupling iteration process is repeated until the temperature change between two adjacent iterations is less than a preset threshold. Finally, the time-series data of the relay coil's heat loss and temperature change over the entire operating cycle is output, i.e., the time-series data of the relay coil's heat loss.

[0209] Optionally, the heat loss timing data of each component can also be output.

[0210] S54. If it is determined from the heat loss timing data of the relay coil that each relay coil has not exceeded the preset safe temperature threshold, then the field-circuit coupling model is determined to have passed the thermal verification.

[0211] The preset safe temperature threshold refers to the highest safe operating temperature set according to the relay coil material, insulation temperature resistance level, and design requirements.

[0212] In one possible implementation, the temperature of each relay coil at each moment is extracted from the heat loss time-series data and compared with a preset safe temperature threshold. If the temperature of all relay coils does not exceed the preset safe temperature threshold at any moment throughout the entire operating cycle, the field-circuit coupling model is confirmed to have passed thermal verification.

[0213] S55. If it is determined from the heat loss timing data of the relay coil that any relay coil exceeds the preset safe temperature threshold, then the field-circuit coupling model is determined to have failed the thermal verification, and step c is re-executed if the number of relay coils has not reached the maximum number of coils.

[0214] It should be understood that increasing the number of relay coils can reduce the system coil current, thereby reducing heat loss.

[0215] In practical applications, the above two steps S54-S55 can be executed through the temperature rise suppression optimization unit.

[0216] It should be understood that when it is determined that the field-circuit coupling model has failed thermal verification, the integrated electro-magnetic-thermal simulation platform can also output a "scheme does not exist" message.

[0217] It should be understood that the loss calculation unit, heat conduction modeling unit, electromagnetic-thermal coupling analysis unit, and temperature rise suppression optimization unit all belong to the thermal analysis engine.

[0218] In the above technical solution, the power loss of components is accurately calculated based on the electromagnetic field distribution characteristics of a three-dimensional electromagnetic model. A heat conduction model is constructed by combining material thermal characteristic parameters. Through bidirectional coupling analysis of the electromagnetic field and temperature field, the mutual influence of heat loss, temperature change, and electromagnetic parameter fluctuation is restored. By monitoring the time-series data of relay coil heat loss, coil temperature changes can be monitored in real time. When the temperature exceeds a preset safety threshold, the number of relay coils is iteratively adjusted to reduce the current and heat loss of a single coil, effectively preventing hardware damage due to overheating and significantly improving the long-term thermal stability of the multi-relay wireless power supply system.

[0219] Figure 6 A flowchart illustrating the design scheme generation method for a relay wireless power supply system provided in this application. Figure Five ,like Figure 6 As shown, the steady-state verification of the field-circuit coupling model based on the design parameters includes:

[0220] S61. Determine the parameter changes of the component based on the heat loss time series data of the component.

[0221] Among them, the parameters in the parameter change amount refer to electrical parameters such as resistance, capacitance, and inductance.

[0222] For example, assuming the coil resistance changes from 1Ω to 1.05Ω, the resistance change is 0.05Ω or 5%.

[0223] In one possible implementation, the thermal loss time-series data of the components output by thermal verification is acquired. Using the conversion relationship between thermal loss and temperature, the thermal loss power at different times is converted into the actual temperature value at that time, forming a temperature time-series curve of the component. Next, the temperature characteristic parameters of each component and the initial electrical parameter reference values ​​of the component under normal temperature conditions are acquired. Then, based on the temperature at each time point in the temperature time-series curve, combined with the temperature characteristic parameters, the actual electrical parameter values ​​of the component at each operating time are calculated. Finally, the difference between the actual electrical parameter values ​​and the initial electrical parameter reference values ​​is determined as the parameter change of the component throughout the entire operating cycle.

[0224] S62. If the parameter change does not exceed the preset safety parameter change threshold, then the field-circuit coupling model is determined to have passed the parameter steady-state verification.

[0225] In one possible implementation, the parameter changes of each component are compared one by one with the corresponding preset safety parameter change thresholds, such as comparing the coil resistance change rate with the resistance threshold and the resonant capacitance change with the capacitance threshold. Furthermore, if the parameter changes of all components do not exceed the preset safety parameter change thresholds, and the overall resonant frequency and impedance matching of the relay wireless power supply system still meet the design requirements, then the field-circuit coupling model is determined to have passed the parameter steady-state verification.

[0226] S63. If the parameter change exceeds the preset safety parameter change threshold, the field-circuit coupling model is determined to have failed the parameter steady-state verification, and step c is re-executed if the number of relay coils has not reached the maximum number of coils.

[0227] It should be understood that when the field-circuit coupling model fails the parameter steady-state verification, the integrated electro-magnetic-thermal simulation platform can also output a "scheme does not exist" message.

[0228] In the above technical solution, by correlating the time-series data of heat loss of related components with changes in electrical parameters, the fluctuations in parameters such as resistance and capacitance caused by temperature can be accurately obtained. By determining the threshold for the amount of change in preset safety parameters, the impact of parameter drift on the core performance of the system, such as the resonant frequency and coupling coefficient, can be effectively avoided. When parameter fluctuations exceed the limits, the number of relay coils is iteratively adjusted to optimize the heat distribution and electromagnetic characteristics, ensuring the stability of electrical parameters during long-term operation and avoiding efficiency degradation or operational failures caused by parameter drift.

[0229] Figure 7 A flowchart illustrating the design scheme generation method for a relay wireless power supply system provided in this application. Figure Six ,like Figure 7 As shown, the coexistence interference verification of the field-circuit coupling model based on the design parameters includes:

[0230] S71. Based on the design parameters and the field-circuit coupling model, construct a composite field source model of the power frequency high-voltage electromagnetic field and the high-frequency wireless charging electromagnetic field.

[0231] Among them, the power frequency high-voltage electromagnetic field refers to the 50Hz / 60Hz low-frequency electromagnetic field generated by high-voltage transmission lines. Its intensity is related to the voltage level in the design parameters and it is an external interference source. The high-frequency wireless charging electromagnetic field refers to the high-frequency electromagnetic field generated by the transmitting coil and the relay coil. It is used for energy transmission and is the electromagnetic field source of the relay wireless power supply system itself.

[0232] Among them, the composite field source model refers to a three-dimensional electromagnetic field simulation model that integrates the power frequency high voltage electromagnetic field and the high frequency wireless charging electromagnetic field. It can simulate the superposition effect of the two fields in space and is the core carrier for analyzing coexisting interference.

[0233] In one possible implementation, based on the voltage level in the design parameters, the intensity and distribution range of the power frequency high-voltage electromagnetic field are determined by calculating using electromagnetic field theory or by calling the high-voltage line electromagnetic field database. At the same time, based on the coil structure and input voltage in the field-circuit coupling model, an excitation model of the high-frequency wireless charging electromagnetic field is constructed. Finally, the two field sources are integrated through a multi-field source modeling unit, and the material properties and spatial positions of components such as coils and insulators are set to form a composite field source model that includes the superposition effect of the two fields.

[0234] S72. In the composite field source model, the spatial electromagnetic field distribution is calculated using the three-dimensional finite element method.

[0235] Among them, the three-dimensional finite element method is a method that discretizes three-dimensional space into countless small elements and solves the electromagnetic field control equations through numerical calculation.

[0236] Spatial electromagnetic field distribution refers to the numerical and directional distribution data of electric and magnetic field strengths at various points within the entire space covered by the composite field source model. In practical applications, it mainly includes field distribution information in areas such as around coils and near insulators.

[0237] In one possible implementation, a solution domain (including the coil, insulator, and a certain surrounding space) is set in the composite field source model using a three-dimensional finite element calculation unit. The solution domain is discretized into a three-dimensional finite element mesh (the mesh near the coil is refined to improve accuracy). The excitation conditions of the power frequency and high frequency field sources, as well as the material parameters such as the dielectric constant and permeability of each component, are substituted into the simulation tool to solve Maxwell's equations. Finally, the spatial electromagnetic field distribution data of the entire solution domain is output, forming a field strength cloud map and a numerical list.

[0238] S73. Based on the spatial electromagnetic field distribution, determine the degree of electromagnetic interference between the relay wireless power supply system and the high-voltage transmission line.

[0239] The electromagnetic interference level between the relay wireless power supply system and the high-voltage transmission line refers to the bidirectional interference intensity between the two. It mainly includes the interference intensity of the high-frequency electromagnetic field of the power supply system on the high-voltage line and its auxiliary equipment, as well as the interference intensity of the power frequency electromagnetic field of the high-voltage transmission line on the signal reception and coil resonance stability of the relay wireless power supply system. It is usually quantified by indicators such as the field strength exceeding the standard multiple and the signal-to-noise ratio of the interference signal.

[0240] In one possible implementation, an interference quantification assessment unit extracts the high-frequency field strength at the installation location of high-voltage line auxiliary equipment and the power frequency field strength near the signal receiving module and resonant control unit of the relay wireless power supply system from the spatial electromagnetic field distribution. Then, the high-frequency field strength is compared with electromagnetic compatibility standard limits; if it exceeds these limits, the excess multiple is calculated, which is the core indicator of the system's external interference level. Similarly, the fluctuation amplitude of the system's core electrical parameters is calculated based on the power frequency field strength and compared with the design-allowed fluctuation threshold to determine the core indicator of the system's external interference level. Finally, by combining these two types of indicators, the electromagnetic interference level is determined.

[0241] For example, the high-frequency field exceeds the standard by 2 times at the sensor, the power frequency field causes parameter fluctuations of 3%, and the overall interference level is moderate.

[0242] S74. If the electromagnetic interference level does not exceed the preset safe electromagnetic interference level threshold, then the field-circuit coupling model is determined to have passed the coexistence interference verification.

[0243] The preset safe electromagnetic interference level is an upper limit for interference safety set based on the anti-interference level of relevant equipment on high-voltage transmission lines and the anti-interference design requirements of wireless power supply systems, combined with the voltage level and power supply power in the design parameters.

[0244] For example, the preset safe electromagnetic interference level can be no more than mild or moderate interference.

[0245] S75. If the electromagnetic interference level exceeds the preset safe electromagnetic interference level threshold, the field-circuit coupling model is determined to have failed the coexistence interference verification, and subsequent verification is stopped.

[0246] In practical applications, the above two steps S74-S75 can be performed through the compatibility design guidance unit.

[0247] It should be understood that when the field-circuit coupling model fails the coexistence interference verification, the integrated electro-magnetic-thermal simulation platform can also output a "scheme does not exist" message.

[0248] It should be understood that the multi-source modeling unit, the three-dimensional finite element calculation unit, the interference quantification evaluation unit, and the compatibility design guidance unit all belong to the coexistence interference analysis engine.

[0249] In the above embodiments, by constructing a composite field source model of the power frequency high-voltage electromagnetic field and the high-frequency wireless charging electromagnetic field, and combining it with the three-dimensional finite element method to accurately calculate the spatial electromagnetic field distribution, the bidirectional electromagnetic interference state between the high-voltage line and the power supply system can be fully restored. By quantifying the degree of electromagnetic interference and comparing it with a preset safety threshold, the high-frequency field of the power supply system can be effectively prevented from interfering with the auxiliary equipment of the transmission line, while preventing the power frequency field of the line from affecting the resonant stability of the power supply system. This ensures the compatible operation of the system in complex electromagnetic environments and meets the electromagnetic safety requirements of high-voltage power transmission scenarios.

[0250] Figure 8 A flowchart illustrating the design scheme generation method for a relay wireless power supply system provided in this application. Figure Seven ,like Figure 8 As shown, the environmental impact verification of the field-circuit coupling model based on the design parameters includes:

[0251] S81. Construct an environmental parameter model that includes at least one of wind load, icing, and water film.

[0252] Among them, wind load refers to the pressure load exerted by outdoor wind on system components. Its magnitude is related to wind speed and the windward area of ​​the components, which can lead to coil displacement and insulator deformation. Icing refers to the ice layer formed by the condensation of water vapor in the air on the surface of insulators and coils in low-temperature environments. The ice layer will change the insulation performance of the insulator and the magnetic field coupling characteristics of the coil. Water film refers to the continuous water layer formed on the surface of insulators in rainy or humid environments. Water film will increase the leakage current on the surface of the insulator, reduce the insulation strength, and may cause surface flashover faults.

[0253] It should be understood that wind load, icing, and water film are all extreme outdoor environmental factors.

[0254] Among them, the environmental parameter model refers to the simulation model that quantifies environmental factors such as wind load, icing, and water film into physical parameters, and can simulate the effects of single or combined extreme environments.

[0255] In one possible implementation, wind load, icing, and water film are quantified into model parameters through environmental parameter modeling units to construct an environmental parameter model that includes at least one extreme environment. If it is necessary to simulate a complex environment, multiple extreme environment parameters can be superimposed.

[0256] S82. Based on the design parameters and the field-circuit coupling model, construct a coupling model of the environment, insulators, and electromagnetic fields.

[0257] Among them, the coupling model of environment, insulator and electromagnetics refers to a multi-physics coupling model that integrates environmental load, insulator structural characteristics and system electromagnetic field characteristics. It can simulate the dynamic closed loop of environmental action → insulator deformation → electromagnetic field distortion → structural stress change.

[0258] In one possible implementation, based on the insulation distance of the insulator and the structural dimensions corresponding to the coil type in the design parameters, the three-dimensional structure and electromagnetic parameters of the insulator and coil are extracted from the field-circuit coupling model using a multi-field coupling analysis unit. Then, wind load, icing, and other load conditions from the environmental parameter model are used as external excitations and input into a multiphysics simulation tool. Next, a connection is established through the coupling interface: environmental loads drive the deformation of the insulator / coil structure, deformation data corrects the boundary conditions of the electromagnetic model, and electromagnetic field distribution data infers the stress changes on the components, ultimately forming a coupled model in which the three elements work together.

[0259] S83. Based on the environmental parameter model, simulate the field distribution characteristics of the coupled model.

[0260] The field distribution characteristics of the coupled model refer to the distribution data of electric and magnetic field strengths at various points in space within the coupled model over time under extreme environmental conditions. For example, these field distribution characteristics include changes in field strength distortion on the insulator surface and field strength attenuation in the coupling region between coils.

[0261] In one possible implementation, environmental parameters from the multi-field coupling analysis unit's environmental parameter model are input into the coupling model, and the simulation time step is set to cover the dynamic process of environmental effects. Then, the electromagnetic-structural coupling equations are solved using simulation tools, outputting field distribution data for different environmental stages, generating field strength contour maps and field strength variation curves at key locations, i.e., field distribution characteristics.

[0262] S84. Determine the stability of the field-path coupling model based on the field distribution characteristics.

[0263] Among them, the stability of the field-circuit coupling model refers to the comprehensive state in which the system simultaneously satisfies the conditions of no structural damage and no performance exceeding the limit under extreme conditions, which includes two dimensions: structural stability and electromagnetic stability.

[0264] In one possible implementation, a two-dimensional analysis is conducted based on field distribution characteristic data through a mechanical-electromagnetic interactive analysis unit: In terms of structural stability, the stress on the components is inferred from the field distribution, and the deformation of the insulator / coil is judged by combining the material strength parameters; in terms of electromagnetic stability, the transmission efficiency and output power change corresponding to the field distribution are calculated, and the surface field strength of the insulator is checked to see if it is still lower than the breakdown field strength; finally, the analysis results of the structural and electromagnetic dimensions are quantified into a stability score, which serves as the basis for judging stability.

[0265] For example, the stability score is out of 100 points, with structural safety accounting for 40 points and performance stability accounting for 60 points.

[0266] S85. If the stability of the field-circuit coupling model is higher than or equal to the preset safety stability threshold, then the field-circuit coupling model is determined to have passed the environmental impact verification.

[0267] Among them, the preset safety stability threshold refers to the minimum qualified value of stability set based on the voltage level, target power and outdoor operation standards of power equipment in the design parameters.

[0268] For example, a stability score of ≥80 points, including a structural stability score of ≥30 points and an electromagnetic stability score of ≥50 points.

[0269] S86. If the stability of the field-circuit coupling model is lower than the preset safety stability threshold, then the field-circuit coupling model is determined to have failed the environmental impact verification.

[0270] In practical applications, the above two steps S85-S86 can be performed through the safety margin assessment unit.

[0271] It should be understood that when it is determined that the field-circuit coupling model has failed the environmental impact verification, the integrated electro-magnetic-thermal simulation platform can also output a "Solution does not exist" message.

[0272] It should be understood that the environmental parameter modeling unit, multi-field coupling analysis unit, mechanical-electromagnetic interaction analysis unit, and safety margin assessment unit all belong to the extreme environmental impact analysis engine.

[0273] In the above implementation method, by constructing an environmental parameter model that includes factors such as wind load, icing, and water film, and combining the design parameters with the field-circuit coupling model to build a coupling model of environment, insulator, and electromagnetic fields, the field distribution characteristics under extreme environments can be accurately simulated. The system stability is determined from both structural and electromagnetic stability dimensions, effectively verifying the system's operational capability under extreme conditions such as icing and strong winds, avoiding structural damage or performance failure caused by environmental factors, and significantly improving the system's adaptability and reliability under complex outdoor conditions.

[0274] Figure 9 A flowchart illustrating the design scheme generation method for a relay wireless power supply system provided in this application. Figure Eight ,like Figure 9 As shown, the method for generating the design scheme of the relay wireless power supply system includes:

[0275] S901. Obtain the design parameters of the relay wireless power supply system input by the user.

[0276] S902, Construct a field-circuit coupling model.

[0277] S903. Determine whether the field-circuit coupling model has passed the effectiveness verification.

[0278] If yes, then execute S907; otherwise, execute S904.

[0279] S904. Determine whether the number of relay coils in the field-circuit coupling model is less than the maximum number of coils.

[0280] If yes, then execute S905; otherwise, execute S906.

[0281] S905, increase the number of relay coils by 1.

[0282] Then, S902 is executed again.

[0283] S906, Output "Solution does not exist".

[0284] S907. Determine whether the field-circuit coupling model has passed the insulation performance verification.

[0285] If yes, then execute S908; otherwise, execute S906.

[0286] S908. Determine whether the field-circuit coupling model has passed thermal verification.

[0287] If yes, then execute S909; otherwise, execute S904.

[0288] S909. Determine whether the field-circuit coupling model has passed the parameter steady-state verification.

[0289] If yes, then execute S910; otherwise, execute S904.

[0290] S910. Determine whether the field-circuit coupling model has passed the coexistence interference verification.

[0291] If yes, then execute S911; otherwise, execute S906.

[0292] S911. Determine whether the field-circuit coupling model has passed the environmental impact verification.

[0293] If yes, then execute S911; otherwise, execute S906.

[0294] S912. Based on the optimized field-circuit coupling model, a design scheme for a relay wireless power supply system is generated.

[0295] It should be understood that the main problem to be solved by this application is to overcome the shortcomings of existing single-field simulation methods and provide a simulation and design method that can accurately reflect the strong coupling characteristics of electric-magnetic-thermal multi-physics fields in high-voltage transmission line relay wireless power supply systems under complex operating conditions, thereby solving key technical problems such as high-voltage insulation design, electromagnetic interference suppression, thermal management optimization and extreme environment adaptability.

[0296] Specifically, the design scheme generation method for relay wireless power supply systems provided in this application adopts standardized coils and optimizes the design of multi-relay wireless power supply systems based on the insulation distance of insulators corresponding to transmission lines of different voltage levels. Through multi-stage verification, parameter judgment and iterative adjustment, it outputs an integrated design report of multi-relay wireless power supply systems adapted to multiple voltage levels or a "scheme does not exist" prompt message, ensuring the rationality and feasibility of the design scheme.

[0297] This application overcomes the challenge of simulating the strong coupling of high-voltage electric fields, high-frequency alternating magnetic fields, and thermal fields. By constructing a multi-physics field strongly coupled simulation model, it accurately captures the cascading effects and dynamic feedback between parameters of multiple physics fields, overcoming the limitation of traditional single-physics field simulations in failing to reproduce complex actual working conditions and filling a gap in related technologies. Furthermore, it achieves synergistic optimization of transmission efficiency, insulation safety, and thermal stability, breaking the bottleneck of isolated optimization of performance indicators in traditional designs. It is particularly suitable for relay wireless power supply systems at multiple voltage levels, such as 110kV and 220kV. Simultaneously, it provides precise and implementable technical solutions for core challenges in engineering practice, such as high-voltage insulation design, electromagnetic interference suppression, and thermal management optimization, significantly reducing engineering trial-and-error costs and accelerating the industrialization process. It also possesses strong scenario adaptability, enabling customized simulations for different voltage levels, the number of relay coils, and configuration requirements, outputting adaptability solutions. This effectively addresses the insufficient adaptability of existing technologies, significantly expanding the application boundaries of the technology and laying a solid foundation for the large-scale promotion and engineering implementation of relay wireless power supply technology.

[0298] Figure 10 A schematic diagram of the structure of the device for generating a design scheme for a relay wireless power supply system provided in this application is shown below. Figure 10 As shown, the design scheme generation device 100 for a relay wireless power supply system provided in this embodiment includes:

[0299] The first acquisition module 101 is used to acquire the design parameters of the relay wireless power supply system input by the user. The design parameters include target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of the insulators of the transmission line.

[0300] Module 102 is used to construct a field-circuit coupling model based on a two-coil system and design parameters.

[0301] The verification module 103 is used to verify the field-circuit coupling model in multiple stages according to a preset sequence and design parameters. The preset sequence includes efficacy verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification, and environmental impact verification. The next stage is executed after the previous stage is verified successfully. If the verification fails, iterative adjustment of the field-circuit coupling model is triggered and / or subsequent verification is stopped.

[0302] The second acquisition module 104 is used to acquire the optimized field-circuit coupling model after the environmental impact verification is passed.

[0303] The generation module 105 is used to generate a design scheme for a relay wireless power supply system based on the optimized field-circuit coupling model.

[0304] In one possible implementation, the field-circuit coupling model includes a three-dimensional electromagnetic model and an equivalent circuit model. The verification module 103 is specifically used for:

[0305] Step a: Perform coupling analysis on the three-dimensional electromagnetic model and the equivalent circuit model based on the design parameters to obtain the system's power parameters and electrical parameters.

[0306] Step b: If the system performance parameters and electrical parameters both meet the design parameters, then the field-circuit coupling model is confirmed to have passed the performance verification.

[0307] Step c: If the system efficiency parameters and / or electrical parameters do not meet the design parameters, increase the number of relay coils by 1 and reconstruct a new field-circuit coupling model based on the design parameters.

[0308] Repeat steps a through c until the system's performance and electrical parameters meet the design parameters, confirming that the field-circuit coupling model has passed performance verification. Alternatively, continue verification until the number of relay coils in the new field-circuit coupling model reaches the maximum number of coils.

[0309] In one possible implementation, the verification module 103 is specifically used for:

[0310] Based on the field-circuit coupling model and design parameters, an electric field model of the high-voltage insulation system is constructed.

[0311] Based on the electric field model of the high-voltage insulation system, a two-way coupling analysis is performed on the high-voltage electric field corresponding to the voltage level and the structural mechanical properties of the insulator to calculate the system potential distribution corresponding to the voltage level.

[0312] The electric field distribution and voltage distribution of the insulator are determined based on the system potential distribution corresponding to the voltage level.

[0313] If the field strength of the insulator does not exceed the breakdown field strength of the insulator based on the field strength distribution, and the voltage withstand value of the insulator does not exceed the preset safe voltage threshold based on the voltage distribution, then the field-circuit coupling model is deemed to have passed the insulation performance verification.

[0314] If the field strength of the insulator exceeds the breakdown field strength of the insulator based on the field strength distribution, or if the voltage withstand value of the insulator exceeds the preset safe voltage threshold based on the voltage distribution, then the field-circuit coupling model is determined to have failed the insulation performance verification, and subsequent verification is stopped.

[0315] In one possible implementation, the verification module 103 is specifically used for:

[0316] Based on the electromagnetic field distribution characteristics output by the three-dimensional electromagnetic model, the power loss of each component is determined.

[0317] A heat conduction model is constructed based on the thermal properties and design parameters of different materials.

[0318] By inputting the power loss of each component into the heat conduction model, a two-way coupling analysis of the electromagnetic field distribution and temperature field changes is performed to determine the heat loss timing data of the relay coil.

[0319] If the thermal loss timing data of the relay coils determines that each relay coil has not exceeded the preset safe temperature threshold, then the field-circuit coupling model is deemed to have passed thermal verification.

[0320] If, based on the timing data of the thermal loss of the relay coils, it is determined that any relay coil exceeds the preset safe temperature threshold, then the field-circuit coupling model is determined to have failed thermal verification, and step c is re-executed if the number of relay coils has not reached the maximum number of coils.

[0321] In one possible implementation, the verification module 103 is specifically used for:

[0322] Based on the design parameters and the field-circuit coupling model, a composite field source model of power frequency high voltage electromagnetic field and high frequency wireless charging electromagnetic field is constructed.

[0323] In the composite field source model, the spatial electromagnetic field distribution is calculated using the three-dimensional finite element method.

[0324] Based on the spatial electromagnetic field distribution, the degree of electromagnetic interference between the relay wireless power supply system and the high-voltage transmission line is determined.

[0325] If the electromagnetic interference level does not exceed the preset safe electromagnetic interference level threshold, then the field-circuit coupling model is determined to have passed the coexistence interference verification.

[0326] If the electromagnetic interference level exceeds the preset safe electromagnetic interference level, the field-circuit coupling model is determined to have failed the coexistence interference verification, and subsequent verification is stopped.

[0327] In one possible implementation, the verification module 103 is specifically used for:

[0328] Construct an environmental parameter model that includes at least one of wind load, icing, and water film.

[0329] Based on the design parameters and the field-circuit coupling model, a coupling model of the environment, insulators, and electromagnetic fields is constructed.

[0330] Based on the environmental parameter model, the field distribution characteristics of the coupled model are simulated.

[0331] The stability of the field-path coupling model is determined based on the field distribution characteristics.

[0332] If the stability of the field-circuit coupling model is higher than or equal to the preset safety stability threshold, then the field-circuit coupling model is determined to have passed the environmental impact verification.

[0333] If the stability of the field-circuit coupling model is lower than the preset safety stability threshold, then the field-circuit coupling model is determined to have failed the environmental impact verification.

[0334] In one possible implementation, the verification module 103 is specifically used for:

[0335] Based on the heat loss time series data of the component, determine the parameter changes of the component.

[0336] If the parameter change does not exceed the preset safety parameter change threshold, then the field-circuit coupling model is determined to have passed the parameter steady-state verification.

[0337] If the parameter change exceeds the preset safety parameter change threshold, the field-circuit coupling model is determined to have failed the parameter steady-state verification, and step c is re-executed if the number of relay coils has not reached the maximum number of coils.

[0338] The design scheme generation device for the relay wireless power supply system provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0339] Figure 11 A schematic diagram of the structure of the electronic device provided in this application. Figure 11 As shown, the electronic device 110 provided in this embodiment includes at least one processor 1101 and a memory 1102. Optionally, the electronic device 110 further includes a communication component 1103. The processor 1101, the memory 1102, and the communication component 1103 are connected via a bus 1104.

[0340] In a specific implementation, at least one processor 1101 executes computer execution instructions stored in memory 1102, causing at least one processor 1101 to perform the above-described method.

[0341] The specific implementation process of processor 1101 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0342] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0343] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0344] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0345] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0346] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0347] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0348] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0349] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0350] The units described as separate components may or may not be physically separate. The 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0351] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0352] If a function is implemented as 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 this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0353] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0354] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for generating a design scheme for a relay wireless power supply system, characterized in that, include: The design parameters of the relay wireless power supply system input by the user are obtained. The design parameters include target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of the insulators of the transmission line. Based on the two-coil system, a field-circuit coupling model is constructed according to the design parameters; According to a preset sequence, the field-circuit coupling model is verified in multiple stages based on the design parameters. The preset sequence includes efficacy verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification, and environmental impact verification. The next stage is executed after the previous stage is verified successfully. If the verification fails, iterative adjustment of the field-circuit coupling model is triggered and / or subsequent verification is stopped. After the environmental impact verification is passed, the optimized field-path coupling model is obtained; Based on the optimized field-circuit coupling model, a design scheme for a relay wireless power supply system is generated.

2. The method according to claim 1, characterized in that, The field-circuit coupling model includes a three-dimensional electromagnetic model and an equivalent circuit model. The effectiveness of the field-circuit coupling model is verified based on the design parameters, including: Step a: Perform coupling analysis on the three-dimensional electromagnetic model and the equivalent circuit model according to the design parameters to obtain system efficiency parameters and electrical parameters; Step b: If the system performance parameters and electrical parameters both meet the design parameters, then the field-circuit coupling model is confirmed to have passed the performance verification. Step c: If the system efficiency parameters and / or electrical parameters do not meet the design parameters, then increase the number of relay coils by 1 and reconstruct a new field-circuit coupling model based on the design parameters. Repeat steps a to c until both the system efficiency parameters and the electrical parameters meet the design parameters, confirming that the field-circuit coupling model has passed efficiency verification; or, stop further verification until the number of relay coils in the new field-circuit coupling model reaches the maximum number of coils.

3. The method according to claim 1 or 2, characterized in that, The insulation performance of the field-circuit coupling model is verified based on the design parameters, including: Based on the field-circuit coupling model and the design parameters, an electric field model of the high-voltage insulation system is constructed. Based on the electric field model of the high-voltage insulation system, a two-way coupling analysis is performed on the high-voltage electric field and the structural mechanical properties of the insulator corresponding to the voltage level, and the system potential distribution corresponding to the voltage level is calculated. The electric field distribution and voltage distribution of the insulator are determined based on the system potential distribution corresponding to the voltage level. If the field strength of the insulator does not exceed the breakdown field strength of the insulator based on the field strength distribution, and the voltage withstand value of the insulator does not exceed the preset safe voltage threshold based on the voltage distribution, then the field-circuit coupling model is determined to have passed the insulation performance verification. If the field strength of the insulator exceeds the breakdown field strength of the insulator based on the field strength distribution, or if the voltage withstand value of the insulator exceeds the preset safe voltage threshold based on the voltage distribution, then the field-circuit coupling model is determined to have failed the insulation performance verification, and subsequent verification is stopped.

4. The method according to claim 2, characterized in that, Thermal verification of the field-circuit coupling model based on the design parameters includes: Based on the electromagnetic field distribution characteristics output by the three-dimensional electromagnetic model, the power loss of each component is determined. Based on the thermal properties of different materials and the design parameters, a heat conduction model is constructed; The power loss of each component is input into the heat conduction model, and a two-way coupling analysis of electromagnetic field distribution and temperature field change is performed to determine the heat loss time series data of the relay coil. If it is determined from the heat loss timing data of the relay coils that each relay coil has not exceeded the preset safe temperature threshold, then the field-circuit coupling model is determined to have passed the thermal verification. If, based on the thermal loss timing data of the relay coils, it is determined that any relay coil exceeds the preset safe temperature threshold, then the field-circuit coupling model is determined to have failed the thermal verification, and step c is re-executed if the number of relay coils does not reach the maximum number of coils.

5. The method according to any one of claims 1, 2, or 4, characterized in that, The coexistence interference verification of the field-circuit coupling model based on the design parameters includes: Based on the design parameters and the field-circuit coupling model, a composite field source model of power frequency high voltage electromagnetic field and high frequency wireless charging electromagnetic field is constructed. In the composite field source model, the spatial electromagnetic field distribution is calculated using the three-dimensional finite element method; Based on the spatial electromagnetic field distribution, the degree of electromagnetic interference between the relay wireless power supply system and the high-voltage transmission line is determined. If the electromagnetic interference level does not exceed the preset safe electromagnetic interference level threshold, then the field-circuit coupling model is determined to have passed the coexistence interference verification. If the electromagnetic interference level exceeds the preset safe electromagnetic interference level, the field-circuit coupling model is determined to have failed the coexistence interference verification, and subsequent verification is stopped.

6. The method according to any one of claims 1, 2, or 4, characterized in that, Environmental impact verification of the field-path coupling model based on the design parameters includes: Construct an environmental parameter model that includes at least one of wind load, icing, and water film; Based on the design parameters and the field-circuit coupling model, a coupling model of the environment, insulator, and electromagnetic field is constructed. Based on the environmental parameter model, simulate the field distribution characteristics of the coupled model; Based on the field distribution characteristics, the stability of the field-path coupling model is determined; If the stability of the field-circuit coupling model is higher than or equal to the preset safety stability threshold, then the field-circuit coupling model is determined to have passed the environmental impact verification. If the stability of the field-path coupling model is lower than the preset safety stability threshold, then the field-path coupling model is determined to have failed the environmental impact verification.

7. The method according to claim 4, characterized in that, The field-circuit coupling model is subjected to steady-state parameter verification based on the design parameters, including: Based on the heat loss time series data of the component, determine the parameter changes of the component; If the change in the parameter does not exceed the preset threshold for the change in the safety parameter, then the field-path coupling model is determined to have passed the steady-state verification of the parameter. If the change in the parameter exceeds the preset threshold for the change in the safety parameter, it is determined that the field-circuit coupling model has failed the steady-state verification of the parameter, and step c is re-executed if the number of relay coils has not reached the maximum number of coils.

8. A design scheme generation device for a relay wireless power supply system, characterized in that, include: The first acquisition module is used to acquire the design parameters of the relay wireless power supply system input by the user. The design parameters include target power, target efficiency, coil type, maximum number of coils, output voltage, input voltage, voltage level, and insulation distance of the insulators of the transmission line. The building module is used to construct a field-circuit coupling model based on the two-coil system and the design parameters. The verification module is used to verify the field-circuit coupling model in multiple stages according to the design parameters in a preset order. The preset order includes efficacy verification, insulation performance verification, thermal verification, parameter steady-state verification, coexistence interference verification, and environmental impact verification. The next stage is executed after the previous stage is verified successfully. If the verification fails, iterative adjustment of the field-circuit coupling model is triggered and / or subsequent verification is stopped. The second acquisition module is used to acquire the optimized field-path coupling model after the environmental impact verification is passed. The generation module is used to generate a design scheme for a relay wireless power supply system based on the optimized field-circuit coupling model.

9. An electronic device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-7.

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