Method, system and equipment for regulating and controlling light-emitting electric field intensity of electroluminescent coating and medium

Abstract

The invention belongs to the technical field of power systems, and discloses a method, a system, equipment and a medium for regulating and controlling the light-emitting electric field intensity of an electroluminescent coating, and the method comprises the steps: analyzing an electric field before and after a fault of power equipment, and obtaining the surface electric field distribution condition before / after the fault of the power equipment; determining a surface electric field intensity threshold value of the power equipment based on the surface electric field distribution condition before / after the power equipment fails; according to the surface electric field intensity threshold value, based on a high-dielectric-constant spraying base material, the dielectric constant of the electroluminescent coating is adjusted, so that the light-emitting electric field intensity of the electroluminescent coating is smaller than or equal to the surface electric field intensity threshold value. According to the present invention, the high dielectric constant substance is added to the electroluminescent coating material, such that the dielectric constant of the electroluminescent coating material is adjusted, the initial luminescence field intensity effect of the electroluminescent coating material is reduced, and the problem that the luminescence field intensity threshold value of the electroluminescent coating material is higher than the surface electric field intensity value after most power equipment distortion is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power systems, and in particular to a method, system, equipment and medium for regulating the luminous electric field intensity of electroluminescent coatings. Background Art

[0002] Electric energy is the pillar of modern society. With the development of society, the demand for electric energy is increasing, which puts higher requirements on the power industry. The further development of the power system requires improving the rationality and scientificity of power configuration, improving the stability of power supply, and realizing the intelligence of the power system. Key equipment in the power grid, such as insulators, bushings, cable joints, dry-type reactors, etc., will inevitably deteriorate during production, transportation, and operation. If these defects are not discovered in time, they will continue to expand until they affect the normal operation of the power system and cause serious economic losses.

[0003] In the early stage of most power equipment failures, the electric field distribution during operation will be distorted. If these electric field changes can be accurately captured, monitoring and early warning can be achieved in the early stage of failures. However, the current measurement of electric fields relies on some precision sensor equipment, such as field grinding electric field sensors, parallel plate vibration electric field sensors, Pockels effect electric field sensors, etc. The intervention of additional instruments may not only change the original electric field distribution, but also increase the measurement complexity and measurement cost.

[0004] In order to solve the problems caused by traditional sensor equipment in detecting electric field changes, some scholars have applied electroluminescent materials to power equipment based on the electroluminescent effect (the electroluminescent effect refers to a solid luminescence phenomenon in which electrons and holes recombine and emit light under the excitation of a higher DC or AC electric field, directly converting electrical energy into light energy). The electroluminescent materials are used to emit light according to changes in the electric field, and the electric field changes of the power equipment are determined based on the light-emitting state. This method can detect electric field changes in real time, accurately, at low cost and with high efficiency.

[0005] However, the initial luminous electric field intensity of the electroluminescent material is relatively high, and it can only emit light when the field intensity reaches an extremely high level. For most electrical equipment, even if the electric field is distorted due to a fault, the maximum value of the electric field is far from reaching the luminous threshold of the electroluminescent material. Therefore, when applying electroluminescent materials to electrical equipment, it is necessary to adjust the initial luminous electric field intensity of the electroluminescent material based on the characteristics of the electrical equipment, so that the electroluminescent material can monitor and warn of faults in the early stage based on the operating status of the electrical equipment. Therefore, how to regulate the initial luminous electric field intensity of the electroluminescent material has become a problem that needs to be solved urgently. Summary of the invention

[0006] The embodiments of the present invention provide a method, system, device and medium for regulating the luminous electric field intensity of an electroluminescent coating to solve the above-mentioned technical problems in the prior art.

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be a general review, nor is it intended to identify key / important components or to delineate the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

[0008] According to a first aspect of an embodiment of the present invention, a method for regulating the luminous electric field intensity of an electroluminescent coating is provided.

[0009] In one embodiment, the method for controlling the intensity of the luminous electric field of the electroluminescent coating comprises:

[0010] Analyze the electric field before and after the power equipment failure to obtain the surface electric field distribution before and after the power equipment failure;

[0011] Determine the surface electric field strength threshold of the power equipment based on the surface electric field distribution of the power equipment before and after a fault;

[0012] According to the surface electric field intensity threshold, based on the high dielectric constant spray substrate, the dielectric constant of the electroluminescent coating is adjusted so that the luminous electric field intensity of the electroluminescent coating is less than or equal to the surface electric field intensity threshold.

[0013] In one embodiment, the electric field before and after the power equipment failure is analyzed to obtain the surface electric field distribution before and after the power equipment failure, including:

[0014] Construct an electric field simulation model before and after a power equipment failure;

[0015] Based on the constructed electric field simulation model, the material parameters and boundary conditions are set to calculate the electric field distribution before and after the power equipment fails.

[0016] In one embodiment, when constructing the electric field simulation model before and after a fault occurs in the electric equipment, the electric field simulation model before the fault occurs in the electric equipment and the electric field simulation model after the fault occurs in the electric equipment are respectively constructed by using physical field finite element simulation software.

[0017] In one embodiment, based on the surface electric field distribution of the electric equipment before and after a fault, determining the surface electric field strength threshold of the electric equipment includes:

[0018] Based on the electric field distribution before / after the electric equipment fails, determine the electric field strength with the maximum distortion degree before / after the failure;

[0019] The average value of the electric field strength with the maximum distortion degree before the fault occurs and the electric field strength with the maximum distortion degree after the fault occurs is calculated, and the average value is used as the surface electric field strength threshold of the power equipment.

[0020] In one embodiment, according to the surface electric field strength threshold, based on the high dielectric constant spray-coated substrate, adjusting the dielectric constant of the electroluminescent coating comprises:

[0021] According to the surface electric field intensity threshold, searching for the high dielectric constant spray substrate corresponding to the surface electric field intensity threshold through a pre-configured correspondence table of luminous electric field intensity and high dielectric constant spray substrate;

[0022] The obtained high dielectric constant spraying substrate is added into the electroluminescent coating to adjust the dielectric constant of the electroluminescent coating.

[0023] In one embodiment, the configuration step of the correspondence table between the luminous electric field intensity and the high dielectric constant spray substrate includes:

[0024] Obtaining different high dielectric constant spray substrates, and adding each of the obtained high dielectric constant spray substrates to the coating substrate of the electroluminescent coating to obtain the corresponding adjusted electroluminescent coating;

[0025] The adjusted electroluminescent coating is sprayed on the surface of the power equipment, and the luminous brightness is tested to obtain the corresponding luminous electric field intensity value;

[0026] According to each high dielectric constant spray substrate and the corresponding luminous electric field intensity value, a correspondence table between luminous electric field intensity and high dielectric constant spray substrate is constructed.

[0027] In one embodiment, the luminescent component of the electroluminescent coating includes: ZnS:Cu electroluminescent material (zinc copper sulfide electroluminescent material); the coating substrate of the electroluminescent coating includes RTV (Room Temperature Silicone Rubber, room temperature vulcanized silicone rubber) coating.

[0028] According to a second aspect of an embodiment of the present invention, a system for regulating the luminous electric field intensity of an electroluminescent coating is provided.

[0029] In one embodiment, the electroluminescent coating luminous electric field intensity control system comprises:

[0030] The electric field analysis module is used to analyze the electric field before and after the power equipment fails, and obtain the surface electric field distribution before and after the power equipment fails;

[0031] A field strength determination module is used to determine the surface electric field distribution of the power equipment before and after a fault, and to determine the surface electric field strength threshold of the power equipment;

[0032] The coating control module is used to adjust the dielectric constant of the electroluminescent coating according to the surface electric field strength threshold and based on the high dielectric constant spray substrate, so that the luminous electric field intensity of the electroluminescent coating is greater than or equal to the surface electric field strength threshold.

[0033] In one embodiment, when the electric field analysis module analyzes the electric field before and after a power equipment failure and obtains the surface electric field distribution of the power equipment before / after a failure, an electric field simulation model of the power equipment before / after a failure is constructed; based on the constructed electric field simulation model, material parameters and boundary conditions are set to calculate the electric field distribution of the power equipment before / after a failure.

[0034] In one embodiment, when constructing the electric field simulation model before and after a fault occurs in the electric equipment, the electric field analysis module uses physical field finite element simulation software to respectively construct the electric field simulation model before the fault occurs in the electric equipment and the electric field simulation model after the fault occurs in the electric equipment.

[0035] In one embodiment, the field strength determination module determines the surface electric field strength threshold of the power equipment based on the surface electric field distribution of the power equipment before / after a fault. The field strength with the maximum distortion degree before / after the fault is determined based on the electric field distribution of the power equipment before / after a fault occurs. The average value of the electric field strength with the maximum distortion degree before the fault and the electric field strength with the maximum distortion degree after the fault is calculated, and the average value is used as the surface electric field strength threshold of the power equipment.

[0036] In one embodiment, when the coating control module adjusts the dielectric constant of the electroluminescent coating based on the high dielectric constant spray substrate according to the surface electric field strength threshold, it searches for the high dielectric constant spray substrate corresponding to the surface electric field strength threshold through a pre-configured correspondence table of luminescent electric field strength and high dielectric constant spray substrate according to the surface electric field strength threshold; the obtained high dielectric constant spray substrate is added to the electroluminescent coating to adjust the dielectric constant of the electroluminescent coating.

[0037] In one embodiment, the electroluminescent coating luminous electric field intensity control system further includes: a corresponding table storage module for storing a pre-configured corresponding table of the luminescent electric field intensity and the high dielectric constant spray substrate; wherein the configuration steps of the corresponding table of the luminescent electric field intensity and the high dielectric constant spray substrate include: obtaining different high dielectric constant spray substrates, and adding each of the obtained high dielectric constant spray substrates to the coating substrate of the electroluminescent coating to obtain the corresponding adjusted electroluminescent coating; spraying the corresponding adjusted electroluminescent coating on the surface of the power equipment, performing a luminescent brightness test, and obtaining the corresponding luminescent electric field intensity value; constructing a corresponding table of the luminescent electric field intensity and the high dielectric constant spray substrate according to each high dielectric constant spray substrate and the corresponding luminescent electric field intensity value.

[0038] In one embodiment, the luminescent component of the electroluminescent coating includes: ZnS:Cu electroluminescent material (zinc copper sulfide electroluminescent material); the coating substrate of the electroluminescent coating includes RTV (Room Temperature Silicone Rubber, room temperature vulcanized silicone rubber) coating.

[0039] According to a third aspect of an embodiment of the present invention, a computer device is provided.

[0040] In one embodiment, the computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0041] According to a fourth aspect of embodiments of the present invention, a computer-readable storage medium is provided.

[0042] In one embodiment, the computer-readable storage medium stores a computer program, and the computer program implements the steps of the above method when executed by a processor.

[0043] The technical solution provided by the embodiment of the present invention may have the following beneficial effects:

[0044] The present invention adds a high dielectric constant spraying substrate to the electroluminescent coating to adjust the dielectric constant of the electroluminescent coating and reduce the effect of the initial luminescent field intensity of the electroluminescent coating, thereby solving the problem that the luminescent field intensity threshold of the electroluminescent coating is higher than the surface electric field intensity value after distortion of most electric equipment, so that the electroluminescent coating does not emit light under the surface field intensity distribution condition when the electric equipment is operating normally, and when the electric equipment fails, the electric field in some areas is distorted, and the position with the field intensity higher than the initial luminescent field intensity of the electroluminescent coating will emit light, thereby realizing real-time, high-efficiency, low-cost non-contact fault self-diagnosis of the electric equipment.

[0045] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0047] Figure 1 It is a flow chart of a method for regulating the electric field intensity of electroluminescent coating according to an exemplary embodiment;

[0048] Figure 2 It is a structural block diagram of a system for regulating the luminous electric field intensity of an electroluminescent coating according to an exemplary embodiment;

[0049] Figure 3 is a schematic diagram of electric displacement vectors at interfaces of different media according to an exemplary embodiment;

[0050] Figure 4 The figure is a schematic diagram showing the structure of a computer device according to an exemplary embodiment. DETAILED DESCRIPTION

[0051] The following description and accompanying drawings fully illustrate the specific embodiments of this article so that those skilled in the art can practice them. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of this article includes the entire scope of the claims, as well as all available equivalents of the claims. Herein, the terms "first", "second", etc. are only used to distinguish one element from another, without requiring or implying any actual relationship or order between these elements. In fact, the first element can also be called the second element, and vice versa. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the structure, device or equipment including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such structure, device or equipment. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the structure, device or equipment including the elements. Each embodiment is described in a progressive manner herein, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0052] The terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. in this document indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this document and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of this document, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, it can also be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0053] As used herein, the term "plurality" means two or more than two, unless otherwise specified.

[0054] In this document, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0055] In this article, the term "and / or" is a description of the association relationship between objects, indicating that three relationships may exist. For example, A and / or B means: A or B, or, A and B.

[0056] It should be understood that, although the various steps in the flow chart are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0057] Each module in the device or system of the present application can be implemented in whole or in part by software, hardware, or a combination thereof. The above modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to the above modules.

[0058] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0059] Figure 1An embodiment of a method for controlling the electric field intensity of an electroluminescent coating according to the present invention is shown.

[0060] In this optional embodiment, the method for controlling the intensity of the luminous electric field of the electroluminescent coating comprises:

[0061] Step S101, analyzing the electric field before and after the power equipment fails to obtain the surface electric field distribution before and after the power equipment fails;

[0062] Step S103, determining a surface electric field strength threshold of the power equipment based on the surface electric field distribution before and after a fault of the power equipment;

[0063] Step S105, according to the surface electric field strength threshold, based on the high dielectric constant spray substrate, adjusting the dielectric constant of the electroluminescent coating so that the luminous electric field strength of the electroluminescent coating is less than or equal to the surface electric field strength threshold.

[0064] Figure 2 An embodiment of a system for controlling the electric field intensity of electroluminescent coatings according to the present invention is shown.

[0065] In this optional embodiment, the electroluminescent coating luminous electric field intensity control system includes:

[0066] The electric field analysis module 201 is used to analyze the electric field before and after the power equipment fails, and obtain the surface electric field distribution before and after the power equipment fails;

[0067] A field strength determination module 203 is used to determine the surface electric field distribution of the power equipment before and after a fault, and to determine the surface electric field strength threshold of the power equipment;

[0068] The coating control module 205 is used to adjust the dielectric constant of the electroluminescent coating according to the surface electric field strength threshold and based on the high dielectric constant spray substrate so that the luminous electric field strength of the electroluminescent coating is less than or equal to the surface electric field strength threshold.

[0069] In the above optional embodiment, the luminous electric field intensity of the electroluminescent coating is in the range of 2kV / cm-8kV / cm. When the dielectric constant of the electroluminescent coating is adjusted based on the high dielectric constant spraying substrate so that the luminous electric field intensity of the electroluminescent coating is less than or equal to the surface electric field intensity threshold, the luminous electric field intensity of the electroluminescent coating can be adjusted to 0.9-1 times of the surface electric field intensity threshold based on the high dielectric constant spraying substrate, thereby realizing that the electroluminescent coating on the power equipment can display light after a fault occurs.

[0070] When analyzing the electric field before and after the power equipment fails and obtaining the surface electric field distribution before / after the power equipment fails, the electric field simulation model before the power equipment fails and the electric field simulation model after the power equipment fails can be constructed by physical field finite element simulation software (such as: comsol software); then based on the constructed electric field simulation model, the material parameters and boundary conditions are set to calculate the electric field distribution before / after the power equipment fails. Specifically, the material parameters include the dielectric constant, magnetic permeability, and electrical conductivity of the material; the boundary conditions include the potential of the power equipment components, for example, the ground terminal potential is 0, and the potential of the part in contact with the power supply is the power supply voltage; different power equipment has different material parameters and boundary conditions, the material parameters depend on the physical composition of the power equipment, and the boundary conditions depend on the working voltage and grounding conditions of the power equipment.

[0071] When determining the threshold of the surface electric field strength of the power equipment based on the surface electric field distribution before / after the power equipment fails, the electric field strength of the maximum distortion degree before / after the failure can be determined based on the electric field distribution before / after the power equipment fails; the average value of the electric field strength of the maximum distortion degree before the failure and the electric field strength of the maximum distortion degree after the failure is calculated (i.e., the sum of the electric field strength of the maximum distortion degree before the failure and the electric field strength of the maximum distortion degree after the failure is divided by 2), and the average value is used as the threshold of the surface electric field strength of the power equipment. Specifically, the electric field distribution before and after the failure of the same position of the power equipment is calculated by simulation software, and the difference between the two is the distortion value. The area with the maximum distortion value can be regarded as the fault-sensitive area of ​​the power equipment, and spraying electroluminescent paint in this area makes it easier to identify the fault.

[0072] When the dielectric constant of the electroluminescent coating is adjusted based on the high dielectric constant spray substrate according to the surface electric field strength threshold, the high dielectric constant spray substrate corresponding to the surface electric field strength threshold is searched through a pre-configured correspondence table of luminescent electric field strength and high dielectric constant spray substrate according to the surface electric field strength threshold; the obtained high dielectric constant spray substrate is added to the electroluminescent coating to adjust the dielectric constant of the electroluminescent coating.

[0073] When the high dielectric constant spray coating substrate is added to the electroluminescent coating, different addition amounts will cause the electroluminescent coating to have different luminous field intensities. For example, when BaTiO is doped into the coating substrate RTV coating of the electroluminescent coating, 3 After the RTV coating is doped with BaTiO 3The greater the amount, the higher the dielectric constant of the RTV coating will be, thereby adjusting the dielectric constant of the electroluminescent coating. Therefore, the high dielectric constant spray substrate experiment can be conducted in advance to obtain the corresponding relationship between each high dielectric constant spray substrate and its added amount and the dielectric constant of the electroluminescent coating, and then the high dielectric constant spray substrate can be added according to the corresponding relationship.

[0074] Of course, in practical applications, in addition to BaTiO 3 In addition, high dielectric constant spray substrates that increase the dielectric constant of the coating substrate of the electroluminescent coating also include SrTiO 3 , CaCu 3 Ti 4 O 12 wait.

[0075] Among them, the correspondence table between the luminescent electric field intensity and the high dielectric constant spray substrate can be obtained through the following steps, specifically: obtaining different high dielectric constant spray substrates, and adding each obtained high dielectric constant spray substrate to the coating substrate of the electroluminescent coating to obtain the corresponding adjusted electroluminescent coating; spraying the corresponding adjusted electroluminescent coating on the surface of the power equipment, performing a luminescent brightness test, and obtaining the corresponding luminescent electric field intensity value; constructing a correspondence table between the luminescent electric field intensity and the high dielectric constant spray substrate according to each high dielectric constant spray substrate and the corresponding luminescent electric field intensity value.

[0076] In addition, in the above optional embodiment, the luminescent component of the electroluminescent coating includes: ZnS:Cu electroluminescent material (zinc copper sulfide electroluminescent material); the coating substrate of the electroluminescent coating includes RTV (Room Temperature Silicone Rubber, room temperature vulcanized silicone rubber) coating. The preparation steps of the electroluminescent coating are to mix the ZnS:Cu electroluminescent material and the RTV coating in a mass ratio of (3-5):10, stir at a speed of 250-300r / min for 2-5 minutes to make the mixture uniform, place the mixed solution in a vacuum dryer for degassing for 10-15 minutes, and obtain the electroluminescent coating.

[0077] In order to facilitate understanding of the principle of the above technical solution of the present invention, the above technical solution of the present invention is further explained below based on the electric displacement vector of the interface between different media.

[0078] High-voltage electrical equipment mainly works under power frequency conditions. The voltage between electrodes changes slowly over time. For any instantaneous electric field caused by static or slowly changing electromotive force, it can be analyzed as an electrostatic field. In the case of an electrostatic field, combined with Figure 3 As shown, for the interface between two different media, the following boundary conditions can be derived from Maxwell's equations: When Δh approaches 0, With ΔS*D 1n -ΔS*D 2n = 0 is equivalent, and then D 1n =D 2n Where: D 1n is the normal component of the electric displacement vector in medium 1, D 2n is the normal component of the electric displacement vector in medium 2. Specifically, The physical meaning is that for any closed surface in space, the flux of the potential vector is proportional to the free charge enclosed by the surface; the flux of the potential vector of a surface is the product of the area S of the surface and the electric displacement vector D in the normal direction of the surface (i.e. D n ) product (ΔS*D n ). In half of the cases, the electric displacement vector D n does not coincide with the plane direction, if the electric displacement vector D n The angle between the plane and the main direction is θ, then D n＝ D*cosD. Figure 3 As shown, the interface between the two media is a closed cylindrical surface, the bottom area of ​​the cylinder is ΔS, and the height is Δh. When the height Δh tends to 0, the flux of the potential vector flowing out from the side can be ignored, then the total electric displacement vector channel of the closed surface is the flux flowing out from the upper bottom surface and the lower bottom surface, so, Figure 3 The flux of the electric displacement vector of the cylindrical closed surface in is S*D 1n -S*D 2n (The negative sign of the second term is because the outflow is taken as +), and because the interface charge is 0, ΔS*D 1n -ΔS*D 2n =0, that is, D 1n =D 2n .exist Figure 3 In the equation, ΔS is the bottom area of ​​the cylinder, D is the electric displacement vector, ε is the dielectric constant, and ρ is s is the surface charge density, where ρ s The value of is 0.

[0079] Among them, Maxwell's equations are:

[0080]

[0081] Where: H is the magnetic field intensity, J is the current, D is the electric displacement vector, E is the electric field intensity, B is the magnetic induction intensity, ρ is the free charge density, is the partial differential operator; t is the time; is an operator.

[0082] Based on the formula of electric displacement vector (D=εE; where D is the electric displacement vector, ε is the relative dielectric constant, and E is the electric field strength), it can be known that when the electric displacement vector is the same, the electric field strength is inversely proportional to the relative dielectric constant. Therefore, it can be known that at the interface of the medium, the medium with a smaller relative dielectric constant withstands a higher electric field strength. Based on this principle, the average relative dielectric constant of the coating substrate can be increased by adding a high dielectric constant spray substrate to the coating substrate, thereby adjusting the dielectric constant of the electroluminescent coating, increasing the local electric field around the luminescent particles, and reducing the macroscopic luminescent field intensity of the composite luminescent material.

[0083] Figure 4 An embodiment of a computer device of the present invention is shown. The computer device may be a server, and the computer device includes a processor, a memory, and a network interface connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store static information and dynamic information data. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, the steps in the above method embodiment are implemented.

[0084] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation on the computer device to which the solution of the present invention is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0085] The above-mentioned computer device includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the steps in the above-mentioned method embodiment are implemented.

[0086] In addition, the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps in the above method embodiment are implemented.

[0087] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0088] The present invention is not limited to the structures which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for controlling the electric field intensity of electroluminescent coatings, characterized in that: include: Analyze the electric field before and after the power equipment failure to obtain the surface electric field distribution before and after the power equipment failure; Determine the surface electric field strength threshold of the power equipment based on the surface electric field distribution of the power equipment before and after a fault; According to the surface electric field intensity threshold, based on the high dielectric constant spray substrate, the dielectric constant of the electroluminescent coating is adjusted so that the luminous electric field intensity of the electroluminescent coating is less than or equal to the surface electric field intensity threshold.

2. The method for controlling the luminous electric field intensity of electroluminescent coating according to claim 1, characterized in that: The electric field before and after the power equipment failure is analyzed, and the surface electric field distribution before and after the power equipment failure is obtained, including: Construct an electric field simulation model before and after a power equipment failure; Based on the constructed electric field simulation model, the material parameters and boundary conditions are set to calculate the electric field distribution before and after the power equipment fails.

3. The method for controlling the electric field intensity of electroluminescent coating according to claim 2, characterized in that: When constructing the electric field simulation model before and after a fault occurs in the power equipment, the electric field simulation model before the fault occurs in the power equipment and the electric field simulation model after the fault occurs in the power equipment are respectively constructed by using physical field finite element simulation software.

4. The method for controlling the electric field intensity of electroluminescent coating according to claim 2, characterized in that: Based on the surface electric field distribution of the power equipment before and after a fault, the surface electric field strength threshold of the power equipment is determined including: Based on the electric field distribution before / after the electric equipment fails, determine the electric field strength with the maximum distortion degree before / after the failure; The average value of the electric field strength with the maximum distortion degree before the fault occurs and the electric field strength with the maximum distortion degree after the fault occurs is calculated, and the average value is used as the surface electric field strength threshold of the power equipment.

5. The method for controlling the electric field intensity of electroluminescent coating according to claim 1, characterized in that: According to the surface electric field intensity threshold, based on the high dielectric constant spraying substrate, adjusting the dielectric constant of the electroluminescent coating comprises: According to the surface electric field intensity threshold, searching for the high dielectric constant spray substrate corresponding to the surface electric field intensity threshold through a pre-configured correspondence table of luminous electric field intensity and high dielectric constant spray substrate; The obtained high dielectric constant spraying substrate is added into the electroluminescent coating to adjust the dielectric constant of the electroluminescent coating.

6. The method for controlling the electric field intensity of electroluminescent coating according to claim 5, characterized in that: The configuration steps of the correspondence table between the luminous electric field intensity and the high dielectric constant spray substrate include: Obtaining different high dielectric constant spray substrates, and adding each of the obtained high dielectric constant spray substrates to the coating substrate of the electroluminescent coating to obtain the corresponding adjusted electroluminescent coating; The adjusted electroluminescent coating is sprayed on the surface of the power equipment, and the luminous brightness is tested to obtain the corresponding luminous electric field intensity value; According to each high dielectric constant spraying substrate and the corresponding luminous electric field intensity value, a correspondence table between luminous electric field intensity and high dielectric constant spraying substrate is constructed.

7. The method for controlling the electric field intensity of electroluminescent coating according to claim 1, characterized in that: The luminescent component of the electroluminescent coating comprises: ZnS:Cu electroluminescent material; the coating substrate of the electroluminescent coating comprises RTV coating.

8. A system for controlling the electric field intensity of electroluminescent coatings, characterized in that: include: The electric field analysis module is used to analyze the electric field before and after the power equipment fails, and obtain the surface electric field distribution before and after the power equipment fails; A field strength determination module is used to determine the surface electric field distribution of the power equipment before and after a fault, and to determine the surface electric field strength threshold of the power equipment; The coating control module is used to adjust the dielectric constant of the electroluminescent coating according to the surface electric field strength threshold and based on the high dielectric constant spray substrate, so that the luminous electric field intensity of the electroluminescent coating is less than or equal to the surface electric field strength threshold.

9. The electroluminescent coating luminous electric field intensity control system according to claim 8, characterized in that: The electric field analysis module analyzes the electric field before and after the power equipment fails and obtains the surface electric field distribution of the power equipment before / after the failure, and constructs an electric field simulation model of the power equipment before / after the failure; based on the constructed electric field simulation model, material parameters and boundary conditions are set to calculate the electric field distribution of the power equipment before / after the failure.

10. The electroluminescent coating luminous electric field intensity control system according to claim 9, characterized in that: When constructing the electric field simulation model before and after a fault occurs in the electric equipment, the electric field analysis module uses physical field finite element simulation software to respectively construct the electric field simulation model before the fault occurs in the electric equipment and the electric field simulation model after the fault occurs in the electric equipment.

11. The electroluminescent coating luminous electric field intensity control system according to claim 9, characterized in that: When the field strength determination module determines the surface electric field strength threshold of the electric equipment based on the surface electric field distribution of the electric equipment before / after a fault occurs, the field strength determination module determines the electric field strength of the maximum distortion degree before / after a fault occurs based on the electric field distribution of the electric equipment before / after a fault occurs; The average value of the electric field strength with the maximum distortion degree before the fault occurs and the electric field strength with the maximum distortion degree after the fault occurs is calculated, and the average value is used as the surface electric field strength threshold of the power equipment.

12. The electroluminescent coating luminous electric field intensity control system according to claim 8, characterized in that: When the coating control module adjusts the dielectric constant of the electroluminescent coating based on the high dielectric constant spray substrate according to the surface electric field strength threshold, it searches for the high dielectric constant spray substrate corresponding to the surface electric field strength threshold through a pre-configured correspondence table of luminescent electric field strength and high dielectric constant spray substrate according to the surface electric field strength threshold; and adds the obtained high dielectric constant spray substrate to the electroluminescent coating to adjust the dielectric constant of the electroluminescent coating.

13. The electroluminescent coating luminous electric field intensity control system according to claim 12, characterized in that: Also includes: A correspondence table storage module, used to store a pre-configured correspondence table between the luminous electric field intensity and the high dielectric constant spray substrate; Among them, the configuration steps of the correspondence table between the luminescent electric field intensity and the high dielectric constant spray substrate include: obtaining different high dielectric constant spray substrates, and adding each obtained high dielectric constant spray substrate to the coating substrate of the electroluminescent coating to obtain the corresponding adjusted electroluminescent coating; spraying the corresponding adjusted electroluminescent coating on the surface of the power equipment, performing a luminescent brightness test, and obtaining the corresponding luminescent electric field intensity value; constructing a correspondence table between the luminescent electric field intensity and the high dielectric constant spray substrate according to each high dielectric constant spray substrate and the corresponding luminescent electric field intensity value.

14. The electroluminescent coating luminous electric field intensity control system according to claim 8, characterized in that: The luminescent component of the electroluminescent coating comprises: ZnS:Cu electroluminescent material; the coating substrate of the electroluminescent coating comprises RTV coating.

15. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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