Angle steel corrosion reliability simulation method and system applied to digital power grid

Abstract

The present invention provides a method and system for simulating the reliability of angle steel corrosion applied to digital power grids, and relates to the technical field of digital power grids. The method comprises: obtaining environmental characteristic information and design information of angle steel components; performing reliability simulation calculation on angle steel components in consideration of angle steel size and environmental corrosion level according to the environmental characteristic information and design information, and obtaining the reliability of angle steel components under different environmental conditions and time conditions; comparing the reliability calculation result with the standard reliability, and determining whether the current angle steel components need to be repaired and reinforced according to the comparison result. The system comprises a database, an angle steel component corrosion reliability calculation module, and an output module. The present invention can efficiently, intelligently, and accurately calculate the reliability of angle steel components of transmission line towers under different corrosion environments, and quantify the degree of influence on the reliability of angle steel components at the levels of angle steel size and corrosion level, so as to facilitate engineering use.

Description

Technical Field

[0001] The present invention relates to the technical field of digital power grids, and in particular to a method and system for simulating the reliability of angle steel corrosion applied to digital power grids. Background Art

[0002] To accelerate the development of digital power grids and realize efficient linkage and intelligent management of power grid data, we need to implement comprehensive technological innovation in the four core areas of smart systems, smart lines, smart towers and smart infrastructure to revolutionize traditional design, construction and operation and maintenance models.

[0003] For a long time, the reliability law of the corrosion of angle steel components of transmission towers in the power grid field has lacked accurate digital simulation methods, which has become a major obstacle to power grid design. The corrosion reliability of transmission tower angle steel components is difficult to quantify, resulting in the failure of tower reliability assessment, which in turn affects the safety and reliability assessment of the entire power grid system. This not only limits the durability development of the power grid structure, but also hinders its digital transformation, posing a threat to the sustainable development of transmission line towers.

[0004] Therefore, a method for simulating the corrosion reliability of angle steel in digital power grid is urgently needed to efficiently, intelligently and accurately calculate the reliability of angle steel components of transmission line towers in different corrosion environments. This breakthrough will help the construction of digital power grid, promote the development of power grid in a smarter and more sustainable direction, and inject new vitality into the future of the power industry. Summary of the invention

[0005] The present invention aims to solve at least one of the above-mentioned technical problems existing in the prior art.

[0006] To this end, a first aspect of the present invention provides a method for simulating the reliability of angle steel corrosion applied to a digital power grid.

[0007] A second aspect of the present invention provides an angle steel corrosion reliability simulation system applied to a digital power grid.

[0008] The present invention provides a method for simulating the reliability of angle steel corrosion applied to a digital power grid, comprising:

[0009] Obtain environmental characteristic information and design information of angle steel components;

[0010] According to the environmental characteristic information and design information, a reliability simulation calculation is performed on the angle steel component under the condition of considering the angle steel size and the environmental corrosion level, so as to obtain the reliability of the angle steel component under different environmental conditions and time conditions;

[0011] Compare the reliability calculation results with the standard reliability, and determine whether the current angle steel component needs to be repaired and reinforced based on the comparison results.

[0012] The angle steel corrosion reliability simulation method applied to the digital power grid according to the above technical solution of the present invention may also have the following additional technical features:

[0013] In the above technical solution, the environmental characteristic information at least includes: the corrosion level of the environment in which the angle steel component is located;

[0014] The design information at least includes: specification information of the angle steel component.

[0015] In the above technical solution, the reliability simulation calculation of the angle steel member is performed in consideration of the angle steel size and the environmental corrosion level, including:

[0016] Calculate the temporal influence coefficient of the angle steel member affected by the size according to the area of ​​the angle steel member;

[0017] Construct the reliability temporal function of angle steel components;

[0018] The corrosion influence coefficient of the angle steel component reliability is calculated according to the corrosion rate of the galvanized layer of the angle steel component;

[0019] The reliability function of the angle steel component under different environmental conditions and time conditions is formed by fitting the temporal influence coefficient of the angle steel component affected by the size, the temporal function of the reliability of the angle steel component and the corrosion influence coefficient of the reliability of the angle steel component;

[0020] The reliability calculation results of the angle steel components under the current operating life are calculated based on the operating life of the angle steel components.

[0021] In the above technical solution, the temporal influence coefficient of the angle steel component affected by the size is calculated according to the area of ​​the angle steel component, including:

[0022]

[0023] in, represents the area of ​​the angle steel component; t represents the service life; It represents the temporal influence coefficient of the angle steel member affected by its size.

[0024] In the above technical solution, the reliability temporal function of the angle steel member is:

[0025]

[0026] Wherein, t represents the operating years; Represents the reliability temporal function of the angle steel component.

[0027] In the above technical solution, the corrosion influence coefficient of the angle steel component reliability is calculated according to the corrosion rate of the galvanized layer of the angle steel component, including:

[0028] Determine the corrosion rate of the galvanized layer of the angle steel component according to the corrosion grade of the environment in which the angle steel component is located;

[0029] Calculate the corrosion influence factor of angle steel component reliability, including:

[0030]

[0031] in, Indicates the corrosion rate of the galvanized layer of the angle steel component; Corrosion influence factor representing the reliability of angle steel components.

[0032] In the above technical solution, the reliability function of the angle steel member under different environmental conditions and time conditions is:

[0033]

[0034] in, Reliability function of angle steel components under different environmental and time conditions; The temporal influence coefficient that indicates the effect of the size of the angle steel member; represents the reliability temporal function of the angle steel member; Corrosion influence factor representing the reliability of angle steel components.

[0035] In the above technical solution, the reliability calculation result is compared with the standard reliability, and according to the comparison result, it is determined whether the current angle steel component needs to be repaired and reinforced, including:

[0036] If the calculated reliability is greater than the standard reliability , it means that the reliability of the angle steel component meets the specification requirements and no repair or reinforcement is required;

[0037] If the reliability calculation result is between ( , ) interval, it means that the reliability of the angle steel component is at risk, and it is necessary to pay attention to the corrosion of the angle steel component and repair and reinforce it in time;

[0038] If the calculated reliability result is less than the standard reliability , it means that the reliability of the angle steel component does not meet the requirements of the specification and needs to be repaired and reinforced immediately.

[0039] The present invention provides a system for simulating the reliability of angle steel corrosion applied to a digital power grid, which is applied to the method for simulating the reliability of angle steel corrosion as described in any one of the above technical solutions. The system comprises:

[0040] A database for storing environmental characteristic information and design information of angle steel components;

[0041] The angle steel component corrosion reliability calculation module is connected to the database, and uses the environmental characteristic information and design information to perform reliability simulation calculation according to the reliability calculation method considering the angle steel size and corrosion level, so as to obtain the reliability of the angle steel component under different environmental conditions and time conditions;

[0042] The output module is connected to the angle steel component corrosion reliability calculation module, reads the reliability calculation result, and compares it with the standard reliability to obtain the evaluation result.

[0043] The angle steel corrosion reliability simulation system applied to the digital power grid according to the above technical solution of the present invention may also have the following additional technical features:

[0044] In the above technical solution, the database includes an environmental characteristic information library and a design information library to store environmental characteristic information and design information respectively.

[0045] In summary, due to the adoption of the above technical features, the beneficial effects of the present invention are:

[0046] The present invention proposes a method and system for simulating the reliability of angle steel corrosion applied to a digital power grid, which can efficiently, intelligently and accurately calculate the reliability of angle steel components of transmission line towers under different corrosion environments.

[0047] It can not only evaluate the safety of in-service angle steel components, but also predict the safety of pre-commissioned angle steel components. It can quantify the degree of influence on the reliability of angle steel components in terms of angle steel size and corrosion level. The simulation results meet the actual needs of the project and are convenient for engineering use.

[0048] This disclosure makes up for the shortcomings in the reliability assessment of angle steel components in the construction of digital power grids. This breakthrough will help the construction of digital power grids, promote the development of power grids in a smarter and more sustainable direction, and inject new vitality into the future of the power industry.

[0049] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0051] Figure 1 It is a flow chart of a method for simulating the reliability of angle steel corrosion applied to a digital power grid according to an embodiment of the present invention;

[0052] Figure 2 The present invention is an operational flow chart of an angle steel corrosion reliability simulation system applied to a digital power grid according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0055] Refer to the following Figure 1 and Figure 2 The following describes a method and system for simulating the reliability of angle steel corrosion applied to a digital power grid according to some embodiments of the present invention.

[0056] Some embodiments of the present application provide a method for simulating the reliability of angle steel corrosion applied to a digital power grid.

[0057] like Figure 1 As shown, the first embodiment of the present invention proposes a method for simulating the reliability of angle steel corrosion applied to a digital power grid, including steps S1-S3. It should be noted that the order of steps S1-S3 referred to in the present disclosure is only for schematic representation. In actual application, those skilled in the art can adjust according to actual needs, and steps of different orders can also be executed simultaneously.

[0058] S1. Obtain environmental characteristic information and design information of the angle steel component; specifically, the environmental characteristic information at least includes the corrosion level of the environment in which the angle steel component is located; the design information at least includes the specification information of the angle steel component. It can be understood that both the environmental characteristic information and the design information are necessary data for reliability simulation calculation, and can be obtained through statistics or surveys.

[0059] S2. According to the environmental characteristic information and design information, reliability simulation calculation is performed on the angle steel component in consideration of the angle steel size and environmental corrosion level, so as to obtain the reliability of the angle steel component under different environmental conditions and time conditions.

[0060] S3. Compare the reliability calculation results with the standard reliability, and determine whether the current angle steel component needs to be repaired and reinforced based on the comparison results.

[0061] In some embodiments, the reliability simulation calculation of the angle steel component in consideration of the angle steel size and the environmental corrosion level as described in step S2 includes the following steps S21-S25.

[0062] S21. Calculate the temporal influence coefficient of the angle steel component affected by its size based on its area.

[0063] In some embodiments, the step of calculating the temporal influence coefficient of the angle steel component affected by the size according to the area of ​​the angle steel component includes:

[0064]

[0065] in, Indicates the area of ​​the angle steel component, in cm 2 ; t represents the operating life; It represents the temporal influence coefficient of the angle steel member affected by its size.

[0066] S22. Construct the reliability temporal function of angle steel components.

[0067] Specifically, the reliability temporal function of the angle steel member is:

[0068]

[0069] Wherein, t represents the operating life in years; Represents the reliability temporal function of the angle steel component.

[0070] S23. Calculate the corrosion influence coefficient of the angle steel component reliability based on the corrosion rate of the galvanized layer of the angle steel component.

[0071] In some embodiments, the corrosion rate of the galvanized layer of the angle steel component is determined according to the corrosion level of the environment in which the angle steel component is located; specifically, the corrosion level may be C1, C2, C3, C4, and C5, which are classified according to ISO9223 standards. Of course, corrosion levels classified according to other current standards may also be selected. It should be noted that the values ​​of the corrosion rate of the galvanized layer of the angle steel component under different corrosion levels are recorded in the relevant specifications. For example, the corrosion rate of the galvanized layer of the angle steel component under C2 level is 0.7 μm / year, which will not be repeated here, and the specific values ​​are not limited in this disclosure.

[0072] Calculate the corrosion influence factor of angle steel component reliability, including:

[0073]

[0074] in, Indicates the corrosion rate of the galvanized layer of the angle steel component, in μm / year; Corrosion influence factor representing the reliability of angle steel components.

[0075] It should be noted that the calculation methods of the temporal influence coefficient of the size of the angle steel component, the reliability temporal function of the angle steel component and the corrosion influence coefficient of the reliability of the angle steel component in the above steps S21-S23 are all the methods that are most in line with the actual operating conditions obtained by the applicant of the present disclosure after a large amount of statistical analysis and experimental simulation verification. By calculating according to the above method, the sensitivity of the reliability of the angle steel component to the size parameters, operating years and corrosion rate can be accurately obtained.

[0076] S24, fitting the reliability function of the angle steel component under different environmental and time conditions according to the temporal influence coefficient of the angle steel component affected by the size, the temporal function of the reliability of the angle steel component and the corrosion influence coefficient of the reliability of the angle steel component.

[0077] In some embodiments, the reliability function of the angle steel member under different environmental conditions and time conditions is:

[0078]

[0079] in, Reliability function of angle steel components under different environmental and time conditions; The temporal influence coefficient that indicates the effect of the size of the angle steel member; represents the reliability temporal function of the angle steel member; Corrosion influence factor representing the reliability of angle steel components.

[0080] S25. Calculate the reliability of the angle steel component under the current service life according to the service life of the angle steel component.

[0081] In some embodiments, the step S3 compares the reliability calculation result with the specification reliability, and determines whether the current angle steel component needs to be repaired and reinforced according to the comparison result, including:

[0082] If the calculated reliability is greater than the standard reliability , it means that the reliability of the angle steel component meets the specification requirements and no repair or reinforcement is required;

[0083] If the reliability calculation result is between ( , ) interval, it means that the reliability of the angle steel component is at risk, and it is necessary to pay attention to the corrosion of the angle steel component and repair and reinforce it in time;

[0084] If the calculated reliability result is less than the standard reliability , it means that the reliability of the angle steel component does not meet the requirements of the specification and needs to be repaired and reinforced immediately.

[0085] Other embodiments of the present invention provide an angle steel corrosion reliability simulation system applied to a digital power grid, which is applied to the angle steel corrosion reliability simulation method as described in any of the above embodiments. The system includes a database, an angle steel component corrosion reliability calculation module and an output module.

[0086] The database is used to store the environmental characteristic information and design information of the angle steel member; in a specific embodiment, the database includes an environmental characteristic information library and a design information library to store the environmental characteristic information and the design information respectively.

[0087] The angle steel component corrosion reliability calculation module is connected to the database, and uses the environmental characteristic information and design information to perform reliability simulation calculation according to the reliability calculation method considering the angle steel size and corrosion level (i.e., the method described in step S2) to obtain the reliability of the angle steel component under different environmental conditions and time conditions.

[0088] The output module is connected with the angle steel component corrosion reliability calculation module, reads the reliability calculation result, and compares it with the standard reliability to obtain the evaluation result.

[0089] exist Figure 2 In the illustrated embodiment, the output module is illustrated as a GUI interface and an output terminal, and the GUI interface can be used by the owner unit to implement visual operations and information browsing.

[0090] Specifically, the display results on the GUI interface may include the following three types:

[0091] If the calculated reliability is greater than the standard reliability , the GUI interface displays the result in blue, which means that the reliability of the angle steel component meets the specification requirements and no repair or reinforcement is required;

[0092] If the reliability calculation result is between ( , ) interval, the GUI interface displays the result in green, indicating that the reliability of the angle steel component is at risk at this time, and attention should be paid to the corrosion of the angle steel component. When the corrosion situation deteriorates further, timely repair and reinforcement should be carried out; the corresponding angle steel component will be marked as a key point;

[0093] If the calculated reliability result is less than the standard reliability , the GUI interface displays the result in red, which means that the reliability of the angle steel component does not meet the specification requirements and needs to be repaired and reinforced immediately to improve its reliability performance until it meets the owner's design requirements.

[0094] After obtaining the reliability prediction results and evaluation suggestions, the GUI interface outputs the data stream to the data output terminal, and the data output terminal forms a tower angle steel corrosion reliability prediction evaluation report in .docx or .doc file format, thereby forming a finished file for easy engineering use.

[0095] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for simulating the reliability of angle steel corrosion applied to digital power grid, characterized in that: include: Obtaining environmental characteristic information and design information of the angle steel component; the environmental characteristic information at least includes the corrosion level of the environment in which the angle steel component is located; The design information at least includes specification information of the angle steel member; According to the environmental characteristic information and design information, a reliability simulation calculation is performed on the angle steel component under the condition of considering the angle steel size and the environmental corrosion level, so as to obtain the reliability of the angle steel component under different environmental conditions and time conditions; Compare the reliability calculation results with the standard reliability, and determine whether the current angle steel component needs to be repaired and reinforced based on the comparison results; The reliability simulation calculation of the angle steel member considering the angle steel size and the environmental corrosion level includes: Calculate the temporal influence coefficient of the angle steel member affected by the size according to the area of ​​the angle steel member; including: in, represents the area of ​​the angle steel component; t represents the service life; The temporal influence coefficient that indicates the effect of the size of the angle steel member; Construct the reliability temporal function of angle steel components; including: Wherein, t represents the operating years; represents the reliability temporal function of the angle steel member; The corrosion influence coefficient of the angle steel component reliability is calculated according to the corrosion rate of the galvanized layer of the angle steel component; The reliability function of the angle steel component under different environmental conditions and time conditions is formed by fitting the temporal influence coefficient of the angle steel component affected by the size, the temporal function of the reliability of the angle steel component and the corrosion influence coefficient of the reliability of the angle steel component; Calculate the reliability calculation results of the angle steel components under the current service life according to the service life of the angle steel components; The method of calculating the corrosion influence coefficient of the angle steel component reliability according to the corrosion rate of the galvanized layer of the angle steel component comprises: Determine the corrosion rate of the galvanized layer of the angle steel component according to the corrosion grade of the environment in which the angle steel component is located; Calculate the corrosion influence factor of angle steel component reliability, including: in, Indicates the corrosion rate of the galvanized layer of the angle steel component; Corrosion influence factor representing the reliability of angle steel components; The reliability function of the angle steel component under different environmental conditions and time conditions is: in, Reliability function of angle steel components under different environmental and time conditions; The temporal influence coefficient that indicates the effect of the size of the angle steel member; represents the reliability temporal function of the angle steel member; Corrosion influence factor representing the reliability of angle steel components.

2. The angle steel corrosion reliability simulation method applied to digital power grid according to claim 1 is characterized in that: The reliability calculation result is compared with the standard reliability, and according to the comparison result, it is determined whether the current angle steel component needs to be repaired and reinforced, including: If the calculated reliability is greater than the standard reliability , it means that the reliability of the angle steel component meets the specification requirements and no repair or reinforcement is required; If the reliability calculation result is between ( , ) interval, it means that the reliability of the angle steel component is at risk at this time, and it is necessary to pay attention to the corrosion of the angle steel component and repair and reinforce it in time; If the calculated reliability result is less than the standard reliability , it means that the reliability of the angle steel component does not meet the requirements of the specification and needs to be repaired and reinforced immediately.

3. An angle steel corrosion reliability simulation system applied to digital power grid, characterized in that: Applied to the angle steel corrosion reliability simulation method according to claim 1 or 2, the system comprises: A database for storing environmental characteristic information and design information of angle steel components; The angle steel component corrosion reliability calculation module is connected to the database, and uses the environmental characteristic information and design information to perform reliability simulation calculation according to the reliability calculation method considering the angle steel size and corrosion level, so as to obtain the reliability of the angle steel component under different environmental conditions and time conditions; The output module is connected to the angle steel component corrosion reliability calculation module, reads the reliability calculation result, and compares it with the standard reliability to obtain the evaluation result.

4. The angle steel corrosion reliability simulation system applied to digital power grid according to claim 3 is characterized in that: The database includes an environment characteristic information library and a design information library to store environment characteristic information and design information respectively.

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