An assembled substation whole-process safety control comprehensive evaluation method

Abstract

The application discloses a kind of full-process safety control comprehensive evaluation methods for prefabricated substation, the appearance of substation is monitored and analyzed by evaluating the appearance safety evaluation coefficient of substation, which can provide reliability basis for the comprehensive safety evaluation of substation, and to a certain extent, reduce the safety risk of substation, while evaluating the environmental parameter safety evaluation coefficient in substation, which improves the comprehensiveness of environmental parameter safety monitoring and analysis in substation, not only effectively guarantees the operation safety of substation, but also effectively maintains the operation stability of power system, the application realizes the safety monitoring and analysis of electrical parameters of substation equipment, improves the timeliness of monitoring, realizes the safety monitoring and analysis of electrical parameter fluctuation of substation equipment, can timely find the potential operation risk of substation equipment, and to a large extent, reduce the operation safety hazard of substation equipment.

Description

Technical Field

[0001] This invention belongs to the field of substation safety control technology, and specifically relates to a comprehensive evaluation method for whole-process safety control of prefabricated substations. Background Technology

[0002] Substations are an indispensable part of the power system. With the rapid development of society, the requirements for the construction efficiency and quality of substations in the power system are becoming increasingly stringent. Prefabricated substations, with their advantages of small footprint and low cost, have been widely promoted and applied, and have now become an important component of the power system. Under these circumstances, the safety control of prefabricated substations is particularly important. If safety monitoring and control at any level is inadequate, it will cause a series of negative impacts on the entire power system. However, the existing technologies for safety control of prefabricated substations have a number of drawbacks, specifically in the following aspects:

[0003] (1) Existing technologies lack safety monitoring and analysis of the appearance of substations, resulting in a one-sided phenomenon in the safety monitoring and control of substations. Consequently, it cannot provide a reliable basis for the comprehensive safety evaluation of substations and increases the safety risks of substations to a certain extent.

[0004] (2) Existing technologies for environmental safety monitoring and analysis in substations mostly focus on temperature and humidity, with little attention paid to air pressure, air velocity and gas safety. This not only fails to effectively ensure the operational safety of substations, but also fails to effectively maintain the operational stability of the power system.

[0005] (3) In the safety monitoring and analysis of equipment in substations, the existing technology lacks the safety monitoring and analysis of electrical parameters of substation equipment. At the same time, it has the problem of poor timeliness and lacks the safety monitoring and analysis of fluctuations in electrical parameters of substation equipment. This makes it impossible to detect potential operational risks of substation equipment in a timely manner, which greatly increases the operational safety hazards of substation equipment and fails to effectively meet the power system's demand for high-quality operation of substations. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, this invention provides a comprehensive evaluation method for whole-process safety control of prefabricated substations, which can effectively solve the problems involved in the prior art.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A comprehensive evaluation method for whole-process safety control of prefabricated substations includes:

[0009] S1. Acquisition of 3D Appearance Image of Substation: The 3D appearance image of the substation is obtained by scanning the substation with a high-definition scanner.

[0010] S2. Substation Appearance Safety Analysis: By comparing the three-dimensional appearance image of the substation with the standard three-dimensional appearance image of the substation stored in the cloud database, the appearance defect areas of the substation are extracted, and the appearance safety evaluation coefficient of the substation is obtained from the analysis.

[0011] S3. Acquisition of basic parameters within the substation: Acquire basic parameters within the substation by setting up safety monitoring equipment, including environmental parameters, basic operating parameters of power equipment, and electrical operating parameters of power equipment;

[0012] S4. Safety Analysis of Environmental Parameters within the Substation: Based on the environmental parameters within the substation, the safety evaluation coefficients of the environmental parameters within the substation are obtained through analysis.

[0013] S5. Safety analysis of basic operating parameters of electrical equipment in substation: Based on the basic operating parameters of electrical equipment in substation, the safety evaluation coefficients of the basic operating parameters of electrical equipment in substation are obtained through analysis.

[0014] S6. Safety Analysis of Operating Electrical Parameters of Equipment in Substation: Based on the operating electrical parameters of equipment in substation, the safety evaluation coefficients of the operating electrical parameters of equipment in substation are obtained through analysis.

[0015] S7. Comprehensive safety evaluation and analysis of substations: Based on the safety evaluation coefficients of the substation's appearance, environmental parameters, basic operating parameters, and electrical parameters, the comprehensive safety evaluation coefficient of the substation is obtained.

[0016] S8. Comprehensive Management Early Warning: Based on the comprehensive safety evaluation coefficient of the substation, a comprehensive safety management early warning is issued for the substation.

[0017] In one possible design, the substation's appearance safety evaluation coefficient is obtained in step S2, and the specific process is as follows:

[0018] S21: Number each appearance defect area of ​​the substation as 1, 2, ..., j, ..., n, and extract the appearance defect type and appearance defect area of ​​each appearance defect area of ​​the substation.

[0019] S22: Match the appearance defect type of each appearance defect area in the substation with the preset evaluation influence factor per unit area corresponding to each appearance defect type to obtain the evaluation influence factor per unit area corresponding to the appearance defect type of each appearance defect area in the substation. Based on this, calculate the appearance safety evaluation coefficient of the substation. The calculation formula is as follows: δ WG Let represent the appearance safety evaluation coefficient of the substation, and j represent the number of each appearance defect area of ​​the substation, j = 1, 2, ..., n, S. j and θ j ′ represents the appearance defect area of ​​the j-th appearance defect area of ​​the substation and the evaluation influence factor per unit area corresponding to the appearance defect type, respectively, and e represents the natural constant.

[0020] In one possible design, the environmental parameters include: atmospheric pressure, air velocity, gas type, gas concentration, temperature, and humidity; the basic operating parameters of the power equipment include: noise level and timbre of the power equipment; and the electrical operating parameters of the power equipment include: operating power, operating voltage, and operating current.

[0021] In one possible design, the safety evaluation coefficients of the substation's internal environmental parameters are analyzed in step S4, and the specific process is as follows:

[0022] S41: Compare the atmospheric pressure inside the substation with the standard atmospheric pressure inside the substation stored in the cloud database, and calculate the atmospheric pressure safety evaluation coefficient inside the substation. The calculation formula is as follows: Where λ represents the atmospheric pressure safety evaluation coefficient inside the substation, Pa0 represents the standard atmospheric pressure inside the substation, and Pa′ represents the atmospheric pressure inside the substation.

[0023] S42: Compare the air velocity inside the substation with the standard air velocity inside the substation stored in the cloud database, and calculate the air velocity safety evaluation coefficient inside the substation. The calculation formula is as follows: Where ζ represents the air velocity safety evaluation coefficient in the substation, V0″ represents the standard air velocity in the substation, and v′ represents the air velocity in the substation.

[0024] S43: Match the types of gases in the substation with the safety impact factors of each gas type per unit concentration in the cloud database to obtain the safety impact factors of each gas type per unit concentration. Calculate the gas safety evaluation coefficient in the substation. The calculation formula is as follows: Where τ represents the gas safety evaluation coefficient in the substation, and i represents the gas type number in the substation, i = 1, 2, ..., q, Q i and Φ iThese represent the gas concentration of the i-th gas in the substation and the safety impact factor of the corresponding unit concentration of that gas type, respectively.

[0025] S44: Compare the temperature inside the substation with the standard temperature inside the substation stored in the cloud database, and calculate the temperature safety evaluation coefficient inside the substation. The calculation formula is as follows: in C0″ represents the temperature safety evaluation coefficient within the substation, C′ represents the standard temperature within the substation, and C′ represents the temperature within the substation.

[0026] S45: Compare the humidity inside the substation with the standard humidity inside the substation stored in the cloud database, and calculate the humidity safety evaluation coefficient inside the substation. The calculation formula is as follows: Where θ represents the humidity safety evaluation coefficient in the substation, RH0″ represents the standard humidity in the substation, and rh′ represents the humidity in the substation;

[0027] S46: Based on the safety evaluation coefficients for atmospheric pressure, air velocity, gas, temperature, and humidity within the substation, the safety evaluation coefficients for environmental parameters within the substation are calculated. The calculation formula is as follows: Where ξ HG The values ​​are represented as safety evaluation coefficients for environmental parameters within the substation. a1, a2, a3, a4, and a5 represent the safety correction factors corresponding to the set atmospheric pressure, air velocity, gas, temperature, and humidity within the substation, respectively.

[0028] In one possible design, the safety evaluation coefficients of the basic operating parameters of the substation equipment are analyzed and obtained in step S5. The specific process is as follows:

[0029] S51: Obtain the operating time of the power equipment in the substation, divide it according to the set time interval, and obtain several operating time periods, which are numbered as 1, 2, ..., m, ..., v respectively;

[0030] S52: Count the number of times the substation equipment operates within each operating time period, and number them as 1, 2, ..., f, ..., p, and then obtain the loudness and timbre of each operating noise of the substation equipment within each operating time period;

[0031] S53: Compare the loudness of each operating noise of the substation equipment during each operating time period with the standard operating noise loudness of the substation equipment stored in the cloud database, and then calculate the safety evaluation coefficient of the operating noise loudness of the substation equipment. The calculation formula is as follows: Where σ represents the safety evaluation coefficient for the operating noise of the substation equipment, m represents the number of the operating time period, m = 1, 2, ..., v, f represents the frequency number corresponding to the operating noise of the substation equipment, f = 1, 2, ..., p, dB0″ represents the standard operating noise loudness of the substation equipment, dB m f This represents the loudness of the noise corresponding to the fth operation of the substation during the mth operating time period;

[0032] S54: Match the timbre corresponding to each operating noise of the substation equipment during each operating time period with the safety impact coefficients of various operating noise timbres of the substation equipment stored in the cloud database, thereby obtaining the safety impact coefficient of the timbre corresponding to each operating noise of the substation equipment during each operating time period. Based on this, calculate the safety evaluation coefficient of the operating noise timbre of the substation equipment in the substation. The calculation formula is as follows: Where η represents the safety evaluation coefficient for the operating noise timbre of the power equipment in the substation, YS m f This represents the safety impact coefficient of the timbre corresponding to the noise of the substation during the fth operation within the mth operating time period;

[0033] S55: Based on the safety evaluation coefficients for the loudness and timbre of the operating noise of the substation equipment, the safety evaluation coefficients for the basic operating parameters of the substation equipment are calculated. The calculation formula is as follows: Where μ JB χ1 and χ2 represent the safety evaluation coefficients of the basic operating parameters of the equipment in the substation, respectively, and represent the safety correction coefficients corresponding to the pre-set operating noise loudness and timbre of the equipment in the substation.

[0034] In one possible design, the safety evaluation coefficients of the operating electrical parameters of the substation equipment are analyzed and obtained in step S6. The specific process is as follows:

[0035] S61: Obtain the operating power of the substation equipment in each operating time period, and obtain the duration of each operating time period. Then calculate the operating power of the substation equipment per unit time period in each operating time period. The calculation formula is as follows: in W represents the operating power of the substation equipment within the m-th operating time period per unit time. m ′ represents the operating power of the substation equipment in the m-th operating time period, T m This represents the duration of the m-th running time segment;

[0036] S62: Compare the operating power consumption per unit time of the substation's electrical equipment in each operating time period with the standard operating power consumption per unit time of the substation's electrical equipment stored in the cloud database, and then calculate the safety evaluation coefficient for the fluctuation of the operating power consumption of the substation's electrical equipment. The calculation formula is as follows: Where φ represents the safety evaluation coefficient for the fluctuation of the operating power of the substation equipment, and W0 represents the standard operating power per unit time of the substation equipment.

[0037] S63: The start time of each operating period is taken as the monitoring time point. The operating voltage and current of the substation equipment at each monitoring time point are then obtained. These are compared with the standard operating voltage and standard operating current of the substation equipment stored in the cloud database. Based on this, the safety evaluation coefficient for current and voltage fluctuations of the substation equipment is calculated. The calculation formula is as follows: Where β represents the current and voltage fluctuation safety evaluation coefficient corresponding to the transformer equipment in the substation, and I0 and U0 represent the standard operating current and standard operating voltage of the transformer equipment in the substation, respectively. m and U m These represent the operating current and operating voltage of the electrical equipment in the substation at the monitoring time point corresponding to the m-th operating time period, respectively.

[0038] S64: Based on the safety evaluation coefficients for fluctuations in the operating power of the substation equipment and the corresponding current and voltage fluctuations of the substation equipment, the safety evaluation coefficients for the operating electrical parameters of the substation equipment are calculated. The calculation formula is as follows: Where ω DC γ1 and γ2 represent the safety evaluation coefficients of the electrical parameters of the equipment in the substation, respectively, and represent the safety weight values ​​of the electrical quantity and current and voltage of the equipment in the substation.

[0039] In one possible design, the formula for calculating the comprehensive safety evaluation coefficient of the substation is: Where ψ represents the comprehensive safety evaluation coefficient of the substation, and κ1, κ2, κ3 and κ4 represent the safety weight percentages corresponding to the set substation appearance, substation internal environmental parameters, basic operating parameters of power equipment and electrical operating parameters of power equipment, respectively.

[0040] In one possible design, the comprehensive safety management early warning for the substation in step S8 is specifically carried out as follows: the comprehensive safety evaluation coefficient of the substation is compared with the standard comprehensive safety evaluation coefficient of the substation stored in the cloud database. If the comprehensive safety evaluation coefficient of the substation is lower than the standard comprehensive safety evaluation coefficient of the substation, then the comprehensive safety management early warning for the substation is carried out.

[0041] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0042] (1) By calculating the safety evaluation coefficient of the appearance of the substation, the present invention realizes the safety monitoring and analysis of the appearance of the substation, avoiding the one-sided phenomenon of safety monitoring and control of the substation in the prior art, and thus providing a reliable basis for the comprehensive safety evaluation of the substation, and reducing the safety risks of the substation to a certain extent.

[0043] (2) This invention obtains environmental parameters within the substation, including atmospheric pressure, air velocity, gas type, gas concentration, temperature, and humidity, and performs safety monitoring and analysis on each of them. Based on this analysis, a safety evaluation coefficient for the environmental parameters within the substation is obtained, thereby improving the comprehensiveness of the safety monitoring and analysis of the environmental parameters within the substation. This overcomes the limitations of existing technologies in terms of low attention to the safety of air pressure, air velocity, and gases within the substation, effectively ensuring the operational safety of the substation and maintaining the operational stability of the power system.

[0044] (3) This invention achieves safety monitoring and analysis of electrical parameters of substation equipment by evaluating the safety evaluation coefficient of the operating power fluctuation of substation equipment and the safety evaluation coefficient of the current and voltage fluctuation of substation equipment. At the same time, it improves the timeliness of monitoring and achieves safety monitoring and analysis of the fluctuation of electrical parameters of substation equipment. It can promptly detect potential operating risks of substation equipment, thereby greatly reducing the safety hazards of substation equipment operation and effectively meeting the power system's demand for high-quality operation of substations. Attached Figure Description

[0045] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0046] Figure 1 This is a flowchart of the method steps of the present invention. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Reference Figure 1As shown, this invention provides a comprehensive evaluation method for the whole-process safety control of prefabricated substations, including:

[0049] S1. Acquisition of 3D Appearance Image of Substation: The 3D appearance image of the substation is obtained by scanning the substation with a high-definition scanner.

[0050] S2. Substation Appearance Safety Analysis: By comparing the three-dimensional appearance image of the substation with the standard three-dimensional appearance image of the substation stored in the cloud database, the appearance defect areas of the substation are extracted, and the appearance safety evaluation coefficient of the substation is obtained from the analysis.

[0051] Specifically, in step S2, the appearance safety evaluation coefficient of the substation is analyzed and obtained. The specific process is as follows:

[0052] S21: Number each appearance defect area of ​​the substation as 1, 2, ..., j, ..., n, and extract the appearance defect type and appearance defect area of ​​each appearance defect area of ​​the substation.

[0053] S22: Match the appearance defect type of each appearance defect area in the substation with the preset evaluation influence factor per unit area corresponding to each appearance defect type to obtain the evaluation influence factor per unit area corresponding to the appearance defect type of each appearance defect area in the substation. Based on this, calculate the appearance safety evaluation coefficient of the substation. The calculation formula is as follows: δ WG Let represent the appearance safety evaluation coefficient of the substation, and j represent the number of each appearance defect area of ​​the substation, j = 1, 2, ..., n, S. j and θ j ′ represents the appearance defect area of ​​the j-th appearance defect area of ​​the substation and the evaluation influence factor per unit area corresponding to the appearance defect type, respectively, and e represents the natural constant.

[0054] In one specific embodiment, the aforementioned appearance defects include wall cracks, peeling of the outer wall layer, and roof damage.

[0055] In a specific embodiment of the present invention, by calculating the safety evaluation coefficient of the substation's appearance, the safety monitoring and analysis of the substation's appearance is realized, avoiding the one-sided phenomenon of safety monitoring and control of substations in the prior art. This provides a reliable basis for the comprehensive safety evaluation of the substation and reduces the safety risks of the substation to a certain extent.

[0056] S3. Acquisition of basic parameters within the substation: Acquire basic parameters within the substation by setting up safety monitoring equipment, including environmental parameters, basic operating parameters of power equipment, and electrical operating parameters of power equipment;

[0057] It should be noted that the aforementioned safety monitoring equipment includes barometric pressure sensors, air velocity sensors, gas sensors, temperature sensors, humidity sensors, and noise sensors.

[0058] Specifically, the environmental parameters include: atmospheric pressure, air velocity, gas type, gas concentration, temperature and humidity; the basic operating parameters of the power equipment include: noise level and timbre of the power equipment; and the electrical operating parameters of the power equipment include: operating power, operating voltage and operating current.

[0059] S4. Safety Analysis of Environmental Parameters within the Substation: Based on the environmental parameters within the substation, the safety evaluation coefficients of the environmental parameters within the substation are obtained through analysis.

[0060] Specifically, the safety evaluation coefficient of the substation's internal environmental parameters is obtained in step S4, and the specific process is as follows:

[0061] S41: Compare the atmospheric pressure inside the substation with the standard atmospheric pressure inside the substation stored in the cloud database, and calculate the atmospheric pressure safety evaluation coefficient inside the substation. The calculation formula is as follows: Where λ represents the atmospheric pressure safety evaluation coefficient inside the substation, Pa0 represents the standard atmospheric pressure inside the substation, and Pa′ represents the atmospheric pressure inside the substation.

[0062] It should be noted that in the above formula for calculating the atmospheric pressure safety evaluation coefficient in substations, the smaller the difference between the atmospheric pressure in the substation and the standard atmospheric pressure in the substation, the larger the atmospheric pressure safety evaluation coefficient in the substation, indicating that the atmospheric pressure in the substation is more in line with safety standards.

[0063] In a specific embodiment of the present invention, the purpose of conducting safety monitoring and analysis of the atmospheric pressure inside the substation is to address the fact that, considering that substations are mostly enclosed structures, excessively high atmospheric pressure inside the substation can lead to explosions of electrical equipment. In addition, a fire inside the substation can also cause the atmospheric pressure inside the substation to rise. Therefore, conducting safety monitoring and analysis of the atmospheric pressure inside the substation is of great significance.

[0064] S42: Compare the air velocity inside the substation with the standard air velocity inside the substation stored in the cloud database, and calculate the air velocity safety evaluation coefficient inside the substation. The calculation formula is as follows: Where ζ represents the air velocity safety evaluation coefficient in the substation, V0″ represents the standard air velocity in the substation, and v′ represents the air velocity in the substation.

[0065] It should be noted that in the above formula for calculating the air velocity safety evaluation coefficient in a substation, the smaller the difference between the air velocity in the substation and the standard air velocity in the substation, the larger the air velocity safety evaluation coefficient in the substation, indicating that the air velocity in the substation is more in line with safety standards.

[0066] In a specific embodiment of the present invention, the purpose of conducting safety monitoring and analysis of air velocity in the substation is to take into account that air velocity accelerates the aging of electrical equipment, thereby increasing the operating cost of electrical equipment in the substation. At the same time, air velocity can also reflect whether there is damage to the substation wall structure, thus demonstrating the importance of conducting safety monitoring and analysis of air velocity in the substation.

[0067] S43: Match the types of gases in the substation with the safety impact factors of each gas type per unit concentration in the cloud database to obtain the safety impact factors of each gas type per unit concentration. Calculate the gas safety evaluation coefficient in the substation. The calculation formula is as follows: Where τ represents the gas safety evaluation coefficient in the substation, and i represents the gas type number in the substation, i = 1, 2, ..., q, Q i and Φ i These represent the gas concentration of the i-th gas in the substation and the safety impact factor of the corresponding unit concentration of that gas type, respectively.

[0068] In a specific embodiment of the present invention, the purpose of monitoring and analyzing the gas in the substation is to ensure the safety of equipment operation within the substation, considering that abnormal operation of power equipment can be reflected by gas to a certain extent. If the power equipment parts are charred due to poor wire contact or the influence of temperature and humidity, a certain amount of gas will be released. By monitoring and analyzing the gas in the substation, the safety of equipment operation within the substation can be effectively guaranteed.

[0069] S44: Compare the temperature inside the substation with the standard temperature inside the substation stored in the cloud database, and calculate the temperature safety evaluation coefficient inside the substation. The calculation formula is as follows: in C0″ represents the temperature safety evaluation coefficient within the substation, C′ represents the standard temperature within the substation, and C′ represents the temperature within the substation.

[0070] It should be noted that in the above formula for calculating the temperature safety evaluation coefficient in a substation, the smaller the difference between the temperature inside the substation and the standard temperature inside the substation, the larger the temperature safety evaluation coefficient inside the substation, indicating that the temperature inside the substation is more in line with safety standards.

[0071] S45: Compare the humidity inside the substation with the standard humidity inside the substation stored in the cloud database, and calculate the humidity safety evaluation coefficient inside the substation. The calculation formula is as follows: Where θ represents the humidity safety evaluation coefficient in the substation, RH0″ represents the standard humidity in the substation, and rh′ represents the humidity in the substation;

[0072] It should be noted that in the above formula for calculating the humidity safety evaluation coefficient in substations, the smaller the difference between the humidity in the substation and the standard humidity in the substation, the larger the humidity safety evaluation coefficient in the substation, indicating that the humidity in the substation is more in line with the safety standards.

[0073] S46: Based on the safety evaluation coefficients for atmospheric pressure, air velocity, gas, temperature, and humidity within the substation, the safety evaluation coefficients for environmental parameters within the substation are calculated. The calculation formula is as follows: Where ξ HG The values ​​are represented as safety evaluation coefficients for environmental parameters within the substation. a1, a2, a3, a4, and a5 represent the safety correction factors corresponding to the set atmospheric pressure, air velocity, gas, temperature, and humidity within the substation, respectively.

[0074] In a specific embodiment of the present invention, environmental parameters within the substation are acquired, including atmospheric pressure, air velocity, gas type, gas concentration, temperature, and humidity. These parameters are then subjected to safety monitoring and analysis. Based on this analysis, a safety evaluation coefficient for the environmental parameters within the substation is obtained. This enhances the comprehensiveness of the safety monitoring and analysis of environmental parameters within the substation, overcoming the limitations of existing technologies that pay less attention to the safety of air pressure, air velocity, and gases within the substation. This not only effectively ensures the operational safety of the substation but also effectively maintains the operational stability of the power system.

[0075] S5. Safety analysis of basic operating parameters of electrical equipment in substation: Based on the basic operating parameters of electrical equipment in substation, the safety evaluation coefficients of the basic operating parameters of electrical equipment in substation are obtained through analysis.

[0076] Specifically, in step S5, the safety evaluation coefficients of the basic operating parameters of the substation equipment are analyzed and obtained. The specific process is as follows:

[0077] S51: Obtain the operating time of the power equipment in the substation, divide it according to the set time interval, and obtain several operating time periods, which are numbered as 1, 2, ..., m, ..., v respectively;

[0078] S52: Count the number of times the substation equipment operates within each operating time period, and number them as 1, 2, ..., f, ..., p, and then obtain the loudness and timbre of each operating noise of the substation equipment within each operating time period;

[0079] S53: Compare the loudness of each operating noise of the substation equipment during each operating time period with the standard operating noise loudness of the substation equipment stored in the cloud database, and then calculate the safety evaluation coefficient of the operating noise loudness of the substation equipment. The calculation formula is as follows: Where σ represents the safety evaluation coefficient for the operating noise of the substation equipment, m represents the number of the operating time period, m = 1, 2, ..., v, f represents the frequency number corresponding to the operating noise of the substation equipment, f = 1, 2, ..., p, dB0″ represents the standard operating noise loudness of the substation equipment, dB m f This represents the loudness of the noise corresponding to the fth operation of the substation during the mth operating time period;

[0080] It should be noted that in the above formula for calculating the safety evaluation coefficient of the operating noise of the substation equipment, the smaller the difference between the loudness of a certain operating noise of the substation equipment during a certain operating period and the loudness of the standard operating noise of the substation equipment, the larger the safety evaluation coefficient of the operating noise of the substation equipment, indicating that the operating noise of the substation equipment is more in line with the safety standards.

[0081] In a specific embodiment of the present invention, the purpose of conducting safety monitoring and analysis on the operating noise of the power equipment is to consider that the operating noise can reflect the safety issues of the internal structure of the power equipment to a certain extent. If the operating noise of the power equipment is too loud, there will be a risk of abnormal operation of the power equipment. If the operating noise of the power equipment is too low, there will be parts falling off or being damaged, which may lead to the internal structure not operating.

[0082] S54: Match the timbre corresponding to each operating noise of the substation equipment during each operating time period with the safety impact coefficients of various operating noise timbres of the substation equipment stored in the cloud database, thereby obtaining the safety impact coefficient of the timbre corresponding to each operating noise of the substation equipment during each operating time period. Based on this, calculate the safety evaluation coefficient of the operating noise timbre of the substation equipment in the substation. The calculation formula is as follows: Where η represents the safety evaluation coefficient for the operating noise timbre of the power equipment in the substation, YS m f This represents the safety impact coefficient of the timbre corresponding to the noise of the substation during the fth operation within the mth operating time period;

[0083] In a specific embodiment of the present invention, the purpose of conducting safety monitoring and analysis of the operating noise timbre of power equipment is to consider that the noise timbre can reflect the operational safety risks of power equipment and, to a certain extent, can determine whether there are foreign objects entering the power equipment or abnormal sounds caused by jamming of power equipment parts. Therefore, conducting safety monitoring and analysis of the operating noise timbre of power equipment is of great significance.

[0084] S55: Based on the safety evaluation coefficients for the loudness and timbre of the operating noise of the substation equipment, the safety evaluation coefficients for the basic operating parameters of the substation equipment are calculated. The calculation formula is as follows: Where μ JB χ1 and χ2 represent the safety evaluation coefficients of the basic operating parameters of the equipment in the substation, respectively, and represent the safety correction coefficients corresponding to the pre-set operating noise loudness and timbre of the equipment in the substation.

[0085] S6. Safety Analysis of Operating Electrical Parameters of Equipment in Substation: Based on the operating electrical parameters of equipment in substation, the safety evaluation coefficients of the operating electrical parameters of equipment in substation are obtained through analysis.

[0086] Specifically, in step S6, the safety evaluation coefficients of the operating electrical parameters of the substation equipment are analyzed and obtained. The specific process is as follows:

[0087] S61: Obtain the operating power of the substation equipment in each operating time period, and obtain the duration of each operating time period. Then calculate the operating power of the substation equipment per unit time period in each operating time period. The calculation formula is as follows: in W represents the operating power of the substation equipment within the m-th operating time period per unit time. m ′ represents the operating power of the substation equipment in the m-th operating time period, T m This represents the duration of the m-th running time segment;

[0088] S62: Compare the operating power consumption per unit time of the substation's electrical equipment in each operating time period with the standard operating power consumption per unit time of the substation's electrical equipment stored in the cloud database, and then calculate the safety evaluation coefficient for the fluctuation of the operating power consumption of the substation's electrical equipment. The calculation formula is as follows: Where φ represents the safety evaluation coefficient for the fluctuation of the operating power of the substation equipment, and W0 represents the standard operating power per unit time of the substation equipment.

[0089] It should be noted that in the above formula for calculating the safety evaluation coefficient of the operating power fluctuation of the substation equipment, the smaller the difference between the operating power of the substation equipment in a certain operating period and the standard operating power of the substation equipment in a certain operating period, the larger the safety evaluation coefficient of the operating power fluctuation of the substation equipment, indicating that the operating power fluctuation of the substation equipment is more in line with the safety standards.

[0090] S63: The start time of each operating period is taken as the monitoring time point. The operating voltage and current of the substation equipment at each monitoring time point are then obtained. These are compared with the standard operating voltage and standard operating current of the substation equipment stored in the cloud database. Based on this, the safety evaluation coefficient for current and voltage fluctuations of the substation equipment is calculated. The calculation formula is as follows: Where β represents the current and voltage fluctuation safety evaluation coefficient corresponding to the transformer equipment in the substation, and I0 and U0 represent the standard operating current and standard operating voltage of the transformer equipment in the substation, respectively. m and U m These represent the operating current and operating voltage of the electrical equipment in the substation at the monitoring time point corresponding to the m-th operating time period, respectively.

[0091] It should be noted that in the above formula for calculating the safety evaluation coefficient of current and voltage fluctuations of the equipment in the substation, the smaller the difference between the operating current and operating voltage of the equipment in the substation at the monitoring time point of a certain operating period and the standard operating current and standard operating voltage of the equipment in the substation, the larger the safety evaluation coefficient of current and voltage fluctuations of the equipment in the substation, indicating that the current and voltage fluctuations of the equipment in the substation are more in line with safety standards.

[0092] S64: Based on the safety evaluation coefficients for fluctuations in the operating power of the substation equipment and the corresponding current and voltage fluctuations of the substation equipment, the safety evaluation coefficients for the operating electrical parameters of the substation equipment are calculated. The calculation formula is as follows: Where ω DC γ1 and γ2 represent the safety evaluation coefficients of the electrical parameters of the equipment in the substation, respectively, and represent the safety weight values ​​of the electrical quantity and current and voltage of the equipment in the substation.

[0093] In a specific embodiment of the present invention, by evaluating the safety evaluation coefficient of the operating power fluctuation of the substation equipment and the safety evaluation coefficient of the current and voltage fluctuation of the substation equipment, the safety monitoring and analysis of the electrical parameters of the substation equipment is realized. At the same time, the timeliness of monitoring is improved, and the safety monitoring and analysis of the fluctuation of electrical parameters of the substation equipment is realized. Potential operational risks of the substation equipment can be detected in a timely manner, thereby reducing the operational safety hazards of the substation equipment to a large extent and effectively meeting the power system's requirements for high-quality operation of substations.

[0094] S7. Comprehensive safety evaluation and analysis of substations: Based on the safety evaluation coefficients of the substation's appearance, environmental parameters, basic operating parameters, and electrical parameters, the comprehensive safety evaluation coefficient of the substation is obtained.

[0095] Specifically, the formula for calculating the comprehensive safety evaluation coefficient of the substation is as follows: Where ψ represents the comprehensive safety evaluation coefficient of the substation, and κ1, κ2, κ3 and κ4 represent the safety weight percentages corresponding to the set substation appearance, substation internal environmental parameters, basic operating parameters of power equipment and electrical operating parameters of power equipment, respectively.

[0096] S8. Comprehensive Management Early Warning: Based on the comprehensive safety evaluation coefficient of the substation, a comprehensive safety management early warning is issued for the substation.

[0097] Specifically, in step S8, the substation is given a comprehensive safety management warning. The process is as follows: the substation safety comprehensive evaluation coefficient is compared with the substation standard safety comprehensive evaluation coefficient stored in the cloud database. If the substation safety comprehensive evaluation coefficient is lower than the substation standard safety comprehensive evaluation coefficient, then the substation is given a comprehensive safety management warning.

[0098] In a specific embodiment of the present invention, by implementing comprehensive safety management and early warning for substations, substation managers can promptly identify safety issues and take timely safety management measures, thereby greatly reducing equipment losses caused by safety problems in substations.

[0099] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A comprehensive evaluation method for full-process safety control of prefabricated substations, characterized in that, include: S1. Acquisition of 3D Appearance Image of Substation: The 3D appearance image of the substation is obtained by scanning the substation with a high-definition scanner. S2. Substation Appearance Safety Analysis: By comparing the three-dimensional appearance image of the substation with the standard three-dimensional appearance image of the substation stored in the cloud database, the appearance defect areas of the substation are extracted, and the appearance safety evaluation coefficient of the substation is obtained from the analysis; wherein, the appearance defects include wall cracks, outer layer peeling of the wall and roof damage. S3. Acquisition of Basic Parameters within the Substation: Basic parameters within the substation are acquired by installing safety monitoring equipment. These basic parameters include environmental parameters, basic operating parameters of the power equipment, and electrical operating parameters of the power equipment. The environmental parameters include atmospheric pressure, air velocity, gas type, gas concentration, temperature, and humidity. The basic operating parameters of the power equipment include the noise level and timbre of the power equipment. The electrical operating parameters of the power equipment include the operating power, operating voltage, and operating current of the power equipment. S4. Safety Analysis of Environmental Parameters within the Substation: Based on the environmental parameters within the substation, the safety evaluation coefficients of the environmental parameters within the substation are obtained through analysis. S5. Safety Analysis of Basic Operating Parameters of Power Equipment in Substations: Based on the basic operating parameters of power equipment in substations, the safety evaluation coefficients of the basic operating parameters of power equipment in substations are analyzed and obtained. Specifically: the operating time of power equipment in substations is obtained and divided into several operating time periods according to a set time interval; the number of times the operating noise of power equipment corresponds to each operating time period is counted, and the loudness and timbre of each operating noise of power equipment in each operating time period are obtained; the loudness of each operating noise of power equipment in each operating time period is compared with the loudness of the standard operating noise of power equipment stored in the cloud database, and then the safety evaluation coefficient of the loudness of the operating noise of power equipment in substations is calculated; the timbre of each operating noise of power equipment in each operating time period is matched with the safety influence coefficient of the timbre of various operating noises of power equipment stored in the cloud database, and then the safety influence coefficient of the timbre of each operating noise of power equipment in each operating time period is obtained, and the safety evaluation coefficient of the basic operating parameters of power equipment in substations is calculated. S6. Safety Analysis of Operating Electrical Parameters of Equipment in Substation: Based on the operating electrical parameters of equipment in substation, the safety evaluation coefficients of the operating electrical parameters of equipment in substation are obtained through analysis. S7. Comprehensive safety evaluation and analysis of substations: Based on the safety evaluation coefficients of the substation's appearance, environmental parameters, basic operating parameters, and electrical parameters, the comprehensive safety evaluation coefficient of the substation is obtained. S8. Comprehensive Management Early Warning: Based on the comprehensive safety evaluation coefficient of the substation, a comprehensive safety management early warning is issued for the substation.

2. The comprehensive evaluation method for whole-process safety control of prefabricated substations according to claim 1, characterized in that: In step S2, the substation's appearance safety evaluation coefficient is analyzed and obtained. The specific process is as follows: S21: Number each appearance defect area of ​​the substation as 1, 2, ..., j, ..., n, and extract the appearance defect type and appearance defect area of ​​each appearance defect area of ​​the substation. S22: Match the appearance defect type of each appearance defect area in the substation with the preset evaluation influence factor per unit area corresponding to each appearance defect type to obtain the evaluation influence factor per unit area corresponding to the appearance defect type of each appearance defect area in the substation. Based on this, calculate the appearance safety evaluation coefficient of the substation. The calculation formula is as follows: , Let represent the appearance safety evaluation coefficient of the substation, and j represent the number of each appearance defect area of ​​the substation, j = 1, 2, ..., n. and Let represent the appearance defect area of ​​the j-th appearance defect area of ​​the substation and the evaluation influence factor per unit area corresponding to the appearance defect type, respectively, and let e represent the natural constant.

3. The comprehensive evaluation method for whole-process safety control of prefabricated substations according to claim 1, characterized in that: In step S4, the safety evaluation coefficients of the substation's internal environmental parameters are analyzed. The specific process is as follows: S41: Compare the atmospheric pressure inside the substation with the standard atmospheric pressure inside the substation stored in the cloud database, and calculate the atmospheric pressure safety evaluation coefficient inside the substation. The calculation formula is as follows: ,in This is expressed as the atmospheric pressure safety evaluation coefficient within the substation. This is expressed as the standard atmospheric pressure inside the substation. This is expressed as the atmospheric pressure inside the substation. S42: Compare the air velocity inside the substation with the standard air velocity inside the substation stored in the cloud database, and calculate the air velocity safety evaluation coefficient inside the substation. The calculation formula is as follows: ,in This is expressed as the air velocity safety evaluation coefficient within the substation. This represents the standard air velocity within the substation. This refers to the air velocity within the substation. S43: Match the types of gases in the substation with the safety impact factors of each gas type per unit concentration in the cloud database to obtain the safety impact factors of each gas type per unit concentration. Calculate the gas safety evaluation coefficient in the substation. The calculation formula is as follows: ,in This is expressed as the gas safety evaluation coefficient within the substation. This indicates the gas type number within the substation. , and These are respectively represented as the first in the substation The gas concentration of each gas and the safety impact factor of the unit concentration corresponding to that gas type; S44: Compare the temperature inside the substation with the standard temperature inside the substation stored in the cloud database, and calculate the temperature safety evaluation coefficient inside the substation. The calculation formula is as follows: ,in This is expressed as the temperature safety evaluation coefficient within the substation. This is expressed as the standard temperature inside the substation. This refers to the temperature inside the substation. S45: Compare the humidity inside the substation with the standard humidity inside the substation stored in the cloud database, and calculate the humidity safety evaluation coefficient inside the substation. The calculation formula is as follows: ,in This is expressed as the humidity safety evaluation coefficient within the substation. This represents the standard humidity level within the substation. This refers to the humidity level inside the substation. S46: Based on the safety evaluation coefficients for atmospheric pressure, air velocity, gas, temperature, and humidity within the substation, the safety evaluation coefficients for environmental parameters within the substation are calculated. The calculation formula is as follows: ,in This is expressed as a safety evaluation coefficient for environmental parameters within the substation. , , , and These represent the safety correction factors corresponding to the set atmospheric pressure, air velocity, gas, temperature, and humidity within the substation, respectively.

4. The comprehensive evaluation method for whole-process safety control of prefabricated substations according to claim 1, characterized in that: In step S5, the safety evaluation coefficients of the basic operating parameters of the substation equipment are analyzed and obtained. The specific process is as follows: S51: Number each running time period as 1, 2, ..., m, ..., v; S52: Number the frequency corresponding to the operating noise of the substation equipment in each operating time period as 1, 2, ..., f, ..., p; S53: The formula for calculating the safety evaluation coefficient of the operating noise of electrical equipment in a substation is as follows: ,in This represents the safety evaluation coefficient for the noise level of electrical equipment operating within the substation, where m represents the number of the operating time period, m = 1, 2, ..., v. The noise level of the power equipment is represented by the frequency number, f = 1, 2, ..., p. This represents the standard operating noise level of the power equipment. This represents the m-th operating time period of the substation equipment. The loudness corresponding to the noise during the second operation; S54: The formula for calculating the safety evaluation coefficient of the operating noise timbre of electrical equipment in a substation is as follows: ,in This represents the timbre safety evaluation coefficient for the operating noise of electrical equipment within a substation. This represents the m-th operating time period of the substation equipment. The safety impact coefficient of the timbre corresponding to the noise during operation; S55: The formula for calculating the safety evaluation coefficient of the basic operating parameters of electrical equipment in a substation is as follows: ,in This represents the safety evaluation coefficient, which is a basic parameter for the operation of electrical equipment within a substation. and These represent the safety correction coefficients corresponding to the pre-set operating noise loudness and timbre of the electrical equipment within the substation.

5. The comprehensive evaluation method for whole-process safety control of prefabricated substations according to claim 1, characterized in that: In step S6, the safety evaluation coefficients of the operating electrical parameters of the substation equipment are analyzed and obtained. The specific process is as follows: S61: Obtain the operating power of the substation equipment in each operating time period, and obtain the duration of each operating time period. Then calculate the operating power of the substation equipment per unit time period in each operating time period. The calculation formula is as follows: ,in This represents the operating power consumption per unit time of the power equipment within the substation during the m-th operating time period. This represents the operating power consumption of the electrical equipment within the substation during the m-th operating time period. This represents the duration of the m-th running time segment; S62: Compare the operating power consumption per unit time of the substation's electrical equipment in each operating time period with the standard operating power consumption per unit time of the substation's electrical equipment stored in the cloud database, and then calculate the safety evaluation coefficient for the fluctuation of the operating power consumption of the substation's electrical equipment. The calculation formula is as follows: ,in This represents the safety evaluation coefficient for fluctuations in the operating power of electrical equipment within a substation. This represents the standard operating electricity consumption per unit time for the electrical equipment within the substation. S63: The start time of each operating period is taken as the monitoring time point. The operating voltage and current of the substation equipment at each monitoring time point are then obtained. These are compared with the standard operating voltage and standard operating current of the substation equipment stored in the cloud database. Based on this, the safety evaluation coefficient for current and voltage fluctuations of the substation equipment is calculated. The calculation formula is as follows: ,in This represents the safety evaluation coefficient for current and voltage fluctuations of electrical equipment within a substation. and These represent the standard operating current and standard operating voltage of the electrical equipment within the substation, respectively. and These represent the operating current and operating voltage of the electrical equipment in the substation at the monitoring time point corresponding to the m-th operating time period, respectively. S64: Based on the safety evaluation coefficients for fluctuations in the operating power of the substation equipment and the corresponding current and voltage fluctuations of the substation equipment, the safety evaluation coefficients for the operating electrical parameters of the substation equipment are calculated. The calculation formula is as follows: ,in This refers to the safety evaluation coefficient of the operating electrical parameters of the equipment within the substation. and These represent the safety weight values ​​corresponding to the operating power and current / voltage of the electrical equipment within the substation.

6. The comprehensive evaluation method for whole-process safety control of prefabricated substations according to claim 5, characterized in that: The formula for calculating the comprehensive safety evaluation coefficient of the substation is as follows: ,in This is expressed as the comprehensive safety evaluation coefficient for substations. , , and These represent the safety weight percentages corresponding to the set substation appearance, substation internal environmental parameters, basic operating parameters of electrical equipment, and electrical operating parameters of electrical equipment.

7. The comprehensive evaluation method for whole-process safety control of prefabricated substations according to claim 1, characterized in that: In step S8, a comprehensive safety management early warning is issued for the substation. The specific process is as follows: the comprehensive safety evaluation coefficient of the substation is compared with the standard comprehensive safety evaluation coefficient of the substation stored in the cloud database. If the comprehensive safety evaluation coefficient of the substation is lower than the standard comprehensive safety evaluation coefficient of the substation, a comprehensive safety management early warning is issued for the substation.

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