An intelligent early warning system for temperature and humidity in box-type switchgear

Abstract

The present invention discloses a temperature and humidity intelligent early warning system for a box-type switchgear, which belongs to the technical field of monitoring of box-type switchgear, and includes: a data acquisition module, a preliminary abnormality assessment module, a preliminary verification judgment module, a secondary verification execution judgment module, a secondary verification module, a comprehensive abnormality early warning module and a preliminary verification threshold adjustment module. The present invention monitors and adjusts the ambient temperature and humidity inside the box-type switchgear in real time, thereby avoiding the problem of false alarms caused by fluctuations in ambient temperature and humidity in the box-type switchgear, thereby reducing the false alarm rate of the box-type switchgear, and effectively solving the problem in the prior art that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on the heat accumulation of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of monitoring of box-type switchgear, and in particular to an intelligent early warning system for temperature and humidity of box-type switchgear. Background Art

[0002] With the popularization of power equipment, box-type switchgear has been widely used as an important facility for receiving and distributing electricity in power systems. However, it is usually located in outdoor or semi-outdoor environments and is often affected by rain, dew and moisture in the air. The heat generated by the equipment during operation is difficult to dissipate, causing the temperature to rise, thus affecting the performance and life of the equipment and may even cause a fire.

[0003] The existing temperature and humidity monitoring system is implemented by arranging wired sensors in the monitoring area, and the sensors are connected to the data acquisition equipment through wires. The data acquisition equipment reads the sensor data regularly or in real time, and transmits it to the monitoring center or host computer for analysis and processing, and generates a temperature measurement picture of the monitored object.

[0004] For example, the invention patent announcement number is: CN112504509B, which announces a temperature monitoring system and method for electric power equipment, including: a monitoring module, a data processing module, a simulation calculation module and a judgment and decision module; the monitoring module is used to obtain the actual temperature TA of the monitored object, and send the actual temperature TA to the data processing module and the judgment and decision module; the data processing module generates a temperature measurement picture of the monitored object according to the actual temperature TA, and sends the temperature measurement picture to the simulation calculation module; the simulation calculation module obtains the theoretical temperature T1 of the monitored object according to the temperature measurement picture through simulation calculation, and sends the theoretical temperature T1 to the judgment and decision module; the judgment and decision module compares the actual temperature TA with the theoretical temperature T1 to obtain a comparison result, and determines the current state of the monitored object according to the comparison result.

[0005] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0006] Fluctuations in ambient temperature and humidity can easily cause overheating or condensation inside the device, thereby triggering false alarms in temperature and humidity monitoring devices. However, the current environmental monitoring results are only based on simple temperature and humidity detection and analysis. Therefore, it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on the heat accumulation of the device. Summary of the invention

[0007] The embodiment of the present application solves the problem in the prior art that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on equipment heat accumulation by providing an intelligent temperature and humidity warning system for a box-type switchgear, thereby avoiding the false alarm problem caused by ambient temperature and humidity fluctuations in the box-type switchgear, and thereby reducing the false alarm rate of the warning system.

[0008] The embodiment of the present application provides a temperature and humidity intelligent early warning system for a box-type switchgear, including: a data acquisition module, used to acquire the temperature, humidity and external environment data inside the box-type switchgear; a preliminary abnormality assessment module, used to analyze the temperature, humidity and external environment data inside the box-type switchgear to obtain a preliminary verification abnormality assessment value of the box-type switchgear; a preliminary verification judgment module, used to obtain a preliminary verification threshold preset in a database, and compare the preliminary verification abnormality assessment value of the box-type switchgear with the preliminary verification threshold to obtain a preliminary verification judgment result; a secondary verification execution judgment module, used to analyze according to the preliminary verification judgment result, if the preliminary verification judgment result is that the preliminary verification is normal, then the secondary verification is not performed, if the preliminary verification judgment result is that the preliminary verification is abnormal, then the secondary verification is performed; the secondary verification module, used to collect the operating parameters of the box-type switchgear, and analyze them in combination with the temperature and humidity inside the box-type switchgear to obtain a secondary verification abnormality assessment value of the box-type switchgear; a comprehensive abnormality early warning module, used to perform a comprehensive analysis according to the preliminary verification abnormality assessment value of the box-type switchgear and the secondary verification abnormality assessment value of the box-type switchgear, obtain a comprehensive evaluation result, and issue an early warning according to the comprehensive evaluation result; The method for obtaining the preliminary verification abnormality evaluation value of the box-type switchgear is as follows: obtaining the internal reference temperature, internal reference humidity, and reference external environmental data of the box-type switchgear preset in the database and comparing them with the internal temperature, humidity, and external environmental data of the box-type switchgear to obtain the preliminary verification abnormality evaluation value of the box-type switchgear; the reference external environmental data include: reference external environmental temperature, reference external environmental humidity, reference external wind speed, and reference external environmental air pressure; the external environmental data include: external environmental temperature, external environmental humidity, external wind speed, and external environmental air pressure; the preliminary verification abnormality evaluation value of the box-type switchgear is used to characterize the degree of abnormality of the preliminary detection environment of the box-type switchgear; the method for comparing the preliminary verification abnormality evaluation value of the box-type switchgear with the preliminary verification threshold to obtain the preliminary verification judgment result includes the following steps: obtaining the preliminary verification threshold preset in the database and comparing it with the preliminary verification abnormality evaluation value of the box-type switchgear; if the preliminary verification abnormality evaluation value of the box-type switchgear is greater than the preliminary verification threshold, then the preliminary verification judgment result is preliminary verification abnormality; if the preliminary verification abnormality evaluation value of the box-type switchgear is below the preliminary verification threshold, then the preliminary verification judgment result is preliminary verification normal.

[0009] Furthermore, the specific method for collecting the operating parameters of the box-type switchgear is: collecting the operating parameters of the box-type switchgear through an electrical tester; the operating parameters of the box-type switchgear include: voltage, current, insulation resistance, three-phase voltage imbalance and three-phase current imbalance of the main control line nodes of the box-type switchgear.

[0010] Furthermore, the secondary verification abnormality evaluation value of the box-type switchgear is obtained, and the specific steps include: obtaining the rated set of operating parameters of the box-type switchgear preset in the database; comparing the temperature, humidity and operating parameters of the box-type switchgear inside the box-type switchgear with the internal reference temperature, internal reference humidity and rated set of operating parameters of the box-type switchgear preset in the database to obtain the secondary verification abnormality evaluation value of the box-type switchgear; the secondary verification abnormality evaluation value of the box-type switchgear is used to characterize the degree of secondary verification abnormality of the box-type switchgear; the rated set of operating parameters of the box-type switchgear includes: rated voltage, rated current, standard value of insulation resistance, standard limit of three-phase voltage imbalance and standard limit of three-phase current imbalance.

[0011] Furthermore, the comprehensive analysis is performed based on the preliminary verification abnormality evaluation value of the box-type switchgear and the secondary verification abnormality evaluation value of the box-type switchgear to obtain a comprehensive evaluation result. The specific steps include: obtaining the weight corresponding to the preliminary verification abnormality evaluation value of the box-type switchgear preset in the database, and marking it as the preliminary verification abnormality impact weight, obtaining the weight corresponding to the secondary verification abnormality evaluation value of the box-type switchgear, and marking it as the secondary verification abnormality impact weight; analyzing according to the preliminary verification abnormality evaluation value of the box-type switchgear, the preliminary verification abnormality impact weight, the secondary verification abnormality evaluation value of the box-type switchgear, the secondary verification abnormality impact weight and the comprehensive correction factor of the box-type switchgear to obtain the comprehensive abnormality evaluation value of the box-type switchgear; obtaining the comprehensive evaluation abnormality threshold preset in the database, and analyzing it with the comprehensive abnormality evaluation value of the box-type switchgear to obtain the comprehensive evaluation result.

[0012] Furthermore, the comprehensive correction factor of the box-type switchgear is obtained by: obtaining the comprehensive correction parameters of the box-type switchgear, including: compressor vibration frequency, compressor vibration intensity, compressor operating noise intensity and sensor historical average response time; obtaining the comprehensive correction reference parameters of the box-type switchgear, including: reference compressor vibration frequency, reference compressor vibration intensity, reference compressor operating noise intensity and reference sensor historical average response time; comparing the comprehensive correction parameters of the box-type switchgear with the comprehensive correction reference parameters of the box-type switchgear to obtain the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear, and mapping and matching the comprehensive correction factors corresponding to each comprehensive operation and maintenance characteristic coefficient interval preset in the database to obtain the comprehensive correction factor of the box-type switchgear, the comprehensive correction factor of the box-type switchgear is used to correct the comprehensive abnormal evaluation value of the box-type switchgear; the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear is used to characterize the degree of equipment aging of the box-type switchgear.

[0013] Furthermore, the comprehensive abnormal evaluation value of the box-type switch is obtained by:

[0014] ;

[0015] In the formula, Indicates the comprehensive abnormal evaluation value of the box-type switchgear. represents a natural constant, Indicates the initial verification abnormal assessment value of the box-type switchgear. Indicates the abnormal evaluation value of the secondary verification of the box-type switchgear. Indicates the comprehensive correction factor of box-type switchgear, Indicates the initial verification of abnormal impact weight, Indicates the impact weight of secondary verification anomaly.

[0016] Furthermore, the warning is issued based on the comprehensive evaluation results, specifically including: the comprehensive evaluation results include: comprehensive evaluation normal and comprehensive evaluation abnormal; if the comprehensive abnormal evaluation value of the box-type switchgear is greater than the comprehensive evaluation abnormal threshold, the comprehensive evaluation result is comprehensive evaluation abnormal, and the warning mechanism is triggered; if the comprehensive abnormal evaluation value of the box-type switchgear is below the comprehensive evaluation abnormal threshold, the comprehensive evaluation result is comprehensive evaluation normal, and the warning mechanism is not triggered.

[0017] Furthermore, it also includes a preliminary verification threshold adjustment module, which is used to adjust the preliminary verification threshold according to the comprehensive abnormal evaluation value of the box-type switchgear if the comprehensive evaluation result is a comprehensive evaluation abnormality. The specific steps include: when the comprehensive evaluation result is a comprehensive evaluation abnormality, extracting the difference between the comprehensive abnormal evaluation value of the box-type switchgear and the comprehensive evaluation abnormal threshold, and recording it as the pre-adjustment abnormal evaluation difference; obtaining the verification adjustment factor corresponding to each abnormal evaluation difference interval preset in the database, matching the pre-adjustment abnormal evaluation difference with each preset abnormal evaluation difference interval, if the pre-adjustment abnormal evaluation difference is within a preset abnormal evaluation difference interval, obtaining the verification adjustment factor corresponding to the abnormal evaluation difference interval as the preliminary verification adjustment factor; subtracting the preliminary verification adjustment factor from the preliminary verification threshold to obtain a specified preliminary verification threshold, and adjusting the early warning mechanism of the box-type switchgear according to the specified preliminary verification threshold.

[0018] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0019] 1. The intelligent early warning system for temperature and humidity of a box-type switchgear provided by the present invention monitors the ambient temperature and humidity inside the box-type switchgear in real time, thereby avoiding the problem of false alarms caused by fluctuations in ambient temperature and humidity of the box-type switchgear, thereby reducing the false alarm rate of the box-type switchgear, and effectively solving the problem in the prior art that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on the heat accumulation of the equipment;

[0020] 2. The present invention collects operating parameters by using an electrical tester and compares them with a preset rated parameter set, thereby realizing secondary verification of the performance of the box-type switchgear, effectively avoiding false alarms caused by single parameter abnormalities or external environmental fluctuations, and improving the reliability of early warning;

[0021] 3. The present invention introduces a dynamic adjustment mechanism for equipment aging and internal facility sensitivity by using a comprehensive correction factor for box-type switchgear, so that when evaluating the temperature and humidity anomalies of the box-type switchgear, anomaly correction processing is performed according to equipment in different aging states, thereby realizing abnormal early warning adjustment based on the operating status of the equipment, which can effectively adapt to the problems of early warning accuracy caused by equipment in different aging states. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a temperature and humidity intelligent early warning system for a box-type switchgear provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The embodiment of the present application solves the problem in the prior art that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on equipment heat accumulation by providing a box-type switchgear. The system uses a data acquisition module to obtain the temperature, humidity and external environmental data inside the box-type switchgear; a preliminary abnormality assessment module to analyze the temperature, humidity and external environmental data inside the box-type switchgear to obtain a preliminary verification abnormality assessment value of the box-type switchgear; and a preliminary verification judgment module to obtain a preliminary verification threshold value preset in a database, and compare the preliminary verification abnormality assessment value of the box-type switchgear with the preliminary verification threshold value to obtain a preliminary verification abnormality assessment value. Judgment result; secondary verification execution judgment module, used to analyze according to the preliminary verification judgment result. If the preliminary verification judgment result is that the preliminary verification is normal, the secondary verification will not be executed. If the preliminary verification judgment result is that the preliminary verification is abnormal, the secondary verification will be executed; the secondary verification module is used to collect the operating parameters of the box-type switch and switch station, and analyze it in combination with the temperature and humidity inside the box-type switch and switch station to obtain the secondary verification abnormal evaluation value of the box-type switch and switch station; the comprehensive abnormal warning module is used to conduct a comprehensive analysis based on the preliminary verification abnormal evaluation value of the box-type switch and switch station and the secondary verification abnormal evaluation value of the box-type switch and switch station to obtain a comprehensive evaluation result, and issue an early warning based on the comprehensive evaluation result. It avoids the problem of false alarms caused by fluctuations in environmental temperature and humidity in the box-type switch and switch station, thereby reducing the false alarm rate of the early warning system.

[0024] The technical solution in the embodiment of the present application is to solve the above-mentioned problem that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on the heat accumulation of the equipment. The overall idea is as follows: a data acquisition module is used to obtain the temperature, humidity and external environmental data inside the box-type switchgear; a preliminary abnormality assessment module is used to analyze the temperature, humidity and external environmental data inside the box-type switchgear to obtain a preliminary verification abnormality assessment value of the box-type switchgear; a preliminary verification judgment module is used to obtain a preliminary verification threshold preset in the database, and compare the preliminary verification abnormality assessment value of the box-type switchgear with the preliminary verification threshold to obtain a preliminary verification judgment result; a secondary verification execution judgment module is used to analyze according to the preliminary verification judgment result, If the preliminary verification determines that the preliminary verification is normal, the secondary verification will not be performed; if the preliminary verification determines that the preliminary verification is abnormal, the secondary verification will be performed; the secondary verification module is used to collect the operating parameters of the box-type switchgear, and analyze them in combination with the temperature and humidity inside the box-type switchgear to obtain the secondary verification abnormal evaluation value of the box-type switchgear; the comprehensive abnormality warning module is used to conduct a comprehensive analysis based on the preliminary verification abnormal evaluation value of the box-type switchgear and the secondary verification abnormal evaluation value of the box-type switchgear to obtain a comprehensive evaluation result, and issue a warning based on the comprehensive evaluation result, thereby reducing the false alarm rate of the box-type switchgear and effectively solving the problem in the prior art that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on equipment heat accumulation.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1As shown, it is a structural schematic diagram of a temperature and humidity intelligent early warning system for a box-type switchgear provided in an embodiment of the present application. The temperature and humidity intelligent early warning system for a box-type switchgear provided in an embodiment of the present application includes: a data acquisition module for acquiring the temperature, humidity and external environmental data inside the box-type switchgear; a preliminary abnormality evaluation module for analyzing the temperature, humidity and external environmental data inside the box-type switchgear to obtain a preliminary verification abnormality evaluation value of the box-type switchgear; a preliminary verification judgment module for obtaining a preliminary verification threshold value preset in a database, and comparing the preliminary verification abnormality evaluation value of the box-type switchgear with the preliminary verification threshold value to obtain a preliminary verification judgment value. The secondary verification execution judgment module is used to analyze according to the preliminary verification judgment result. If the preliminary verification judgment result is that the preliminary verification is normal, the secondary verification will not be executed. If the preliminary verification judgment result is that the preliminary verification is abnormal, the secondary verification will be executed. The secondary verification module is used to collect the operating parameters of the box-type switchgear, and analyze them in combination with the temperature and humidity inside the box-type switchgear to obtain the secondary verification abnormal evaluation value of the box-type switchgear; the comprehensive abnormal warning module is used to conduct a comprehensive analysis based on the preliminary verification abnormal evaluation value of the box-type switchgear and the secondary verification abnormal evaluation value of the box-type switchgear to obtain a comprehensive evaluation result, and issue an early warning based on the comprehensive evaluation result.

[0027] In this embodiment, through multiple verifications and comprehensive analysis, it is possible to more accurately determine whether there are abnormal conditions in the box-type switchgear, reducing false alarms and missed alarms. It is possible to monitor the status of the box-type switchgear in real time, detect potential faults or abnormalities in a timely manner, ensure the reliability and stability of the monitoring results, and enable maintenance personnel to respond to abnormal conditions more quickly through the early warning mechanism, reduce manual intervention and downtime, improve maintenance efficiency, and detect and handle potential safety hazards in a timely manner, reduce the probability of accidents, and ensure the safety of personnel and equipment.

[0028] Furthermore, a preliminary verification abnormality assessment value of the box-type switchgear is obtained, and the specific method is: obtain the internal reference temperature, internal reference humidity, and reference external environmental data of the box-type switchgear preset in the database and compare them with the internal temperature, humidity and external environmental data of the box-type switchgear to obtain a preliminary verification abnormality assessment value of the box-type switchgear; the reference external environmental data include: reference external environmental temperature, reference external environmental humidity, reference external wind speed and reference external environmental air pressure; the external environmental data include: external environmental temperature, external environmental humidity, external wind speed and external environmental air pressure; the preliminary verification abnormality assessment value of the box-type switchgear is used to characterize the degree of abnormality of the preliminary detection environment of the box-type switchgear.

[0029] In this embodiment, the preliminary verification abnormal evaluation value of the box-type switch is obtained by:

[0030] ;

[0031] ;

[0032] In the formula, represents the initial verification abnormal evaluation value of the box-type switch, e represents the natural constant, Indicates the temperature inside the box-type switchgear. Indicates the internal reference temperature of the box-type switchgear. Indicates the humidity inside the box-type switchgear. Indicates the reference humidity inside the box-type switchgear. Indicates the abnormal evaluation value of the external environment of the box-type switchgear. Indicates the weight of the internal environment of the box-type switchgear. Indicates the weight of the external environment impact of the box-type switchgear, Indicates the external ambient temperature, Indicates reference to external ambient temperature. Indicates the external environment humidity. Indicates reference to external ambient humidity. represents the external wind speed, Indicates the reference external wind speed, Indicates the external ambient air pressure. Indicates reference to external ambient air pressure.

[0033] It should be noted that the preliminary verification abnormal assessment value of the box-type switchgear is obtained by comparing the temperature and humidity inside the box-type switchgear with the external environmental data. This is based on the mutual influence of these parameters. For example, when the external environment temperature is high and the humidity is high, moisture is easily accumulated inside the box-type switchgear, forming condensation, reducing insulation performance and increasing the risk of failure. At the same time, changes in the wind speed of the external environment may affect the heat dissipation efficiency of the box-type switchgear. Changes in the external environmental air pressure may affect the convection and heat dissipation of the air inside the box-type switchgear, thereby affecting the control of temperature and humidity. Therefore, when preliminarily verifying the abnormal assessment value of the box-type switchgear, it is necessary to comprehensively consider the mutual influence of these parameters to ensure that the internal environment is suitable and avoid problems such as excessive temperature and excessive humidity to ensure the normal operation and safety of the equipment.

[0034] It should also be noted that the internal environment impact weight of the box-type switchgear represents the numerical value of the influence of the internal environment of the box-type switchgear on the preliminary verification abnormal assessment value of the box-type switchgear. When used, the impact weight corresponding to the internal environment of the box-type switchgear can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the internal environment of the box-type switchgear and the internal environment impact weight of the box-type switchgear form a mapping set, and the real-time internal environment of the box-type switchgear is input into the mapping set to obtain the impact weight corresponding to the internal environment of the box-type switchgear. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship. The external environment impact weight of the box-type switchgear represents the numerical value of the influence of the external environment of the box-type switchgear on the preliminary verification abnormal assessment value of the box-type switchgear. When used, the impact weight corresponding to the external environment of the box-type switchgear can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the external environment of the box-type switchgear and the external environment impact weight of the box-type switchgear form a mapping set, and the real-time external environment of the box-type switchgear is input into the mapping set to obtain the impact weight corresponding to the external environment of the box-type switchgear. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0035] The temperature, humidity and external environmental data (external ambient temperature, external ambient humidity, external wind speed and external ambient air pressure) inside the box-type switchgear can be measured and obtained through the built-in and external temperature and humidity sensors, anemometers and barometers of the box-type switchgear.

[0036] Furthermore, the preliminary verification abnormality evaluation value of the box-type switchgear is compared with the preliminary verification threshold to obtain a preliminary verification judgment result. The specific steps include: obtaining the preliminary verification threshold preset in the database, and comparing it with the preliminary verification abnormality evaluation value of the box-type switchgear. If the preliminary verification abnormality evaluation value of the box-type switchgear is greater than the preliminary verification threshold, then the preliminary verification judgment result is preliminary verification abnormality; if the preliminary verification abnormality evaluation value of the box-type switchgear is below the preliminary verification threshold, then the preliminary verification judgment result is preliminary verification normal.

[0037] Furthermore, the operating parameters of the box-type switchgear are collected. The specific method is: collecting the operating parameters of the box-type switchgear through an electrical tester; the operating parameters of the box-type switchgear include: voltage, current, insulation resistance, three-phase voltage imbalance and three-phase current imbalance of the main control line nodes of the box-type switchgear.

[0038] In this embodiment, the voltage, current, insulation resistance, three-phase voltage imbalance and three-phase current imbalance of the main control line node of the box-type switchgear refer to the voltage, current, insulation resistance, three-phase voltage imbalance and three-phase current imbalance of the bus node of the main control line.

[0039] It should be noted that the closer the voltage is to the rated voltage, the more ideal the operating state of the equipment. If the voltage is too high or too low, it may damage the equipment or affect its normal operation. The closer the current is to the rated current, the more ideal the operating state of the equipment. Too high current may cause the equipment to overheat, while too low current may indicate that the equipment is not fully utilized or there is a fault. The higher the insulation resistance, the better the insulation performance of the equipment and the lower the risk of leakage. Therefore, the higher the insulation resistance value, the lower the secondary verification abnormality assessment value of the box-type switchgear, and the smaller the three-phase current imbalance, which means that the three-phase current is more balanced and the operating state of the equipment is more stable.

[0040] It should also be noted that the voltage and current of the main control line node of the box-type switchgear can be measured by the voltmeter and ammeter inside the box-type switchgear, the insulation resistance can be measured by an insulation resistance tester (also called a megohmmeter), and the three-phase voltage imbalance and three-phase current imbalance can be measured using a three-phase power analyzer or a multi-function power meter. For example: the three-phase voltage imbalance is usually calculated using the delayed phasor method, by measuring the positive-sequence, negative-sequence and zero-sequence components of the three-phase voltage, and then calculating the voltage imbalance according to the formula. The three-phase current imbalance can be calculated using two commonly used formulas, namely (maximum current - minimum current) / maximum current × 100% or (maximum phase current - three-phase average current) / three-phase average current × 100%.

[0041] Furthermore, a secondary verification abnormality assessment value of the box-type switchgear is obtained, and the specific steps include: obtaining a rated set of operating parameters of the box-type switchgear preset in a database; comparing the temperature, humidity and operating parameters of the box-type switchgear inside the box-type switchgear with the internal reference temperature, internal reference humidity and rated set of operating parameters of the box-type switchgear preset in the database to obtain a secondary verification abnormality assessment value of the box-type switchgear; the secondary verification abnormality assessment value of the box-type switchgear is used to characterize the degree of secondary verification abnormality of the box-type switchgear; the rated set of operating parameters of the box-type switchgear includes: rated voltage, rated current, standard value of insulation resistance, standard limit value of three-phase voltage imbalance and standard limit value of three-phase current imbalance.

[0042] In this embodiment, the secondary verification abnormality evaluation value of the box-type switch is obtained by:

[0043] ;

[0044] ;

[0045] In the formula, represents the secondary verification abnormal evaluation value of the box-type switch, e represents the natural constant, Indicates the temperature inside the box-type switchgear. Indicates the internal reference temperature of the box-type switchgear. Indicates the humidity inside the box-type switchgear. Indicates the reference humidity inside the box-type switchgear. Indicates the abnormal evaluation value of the operating parameters of the box-type switchgear. Indicates the environmental impact weight of the secondary verification of the box-type switchgear. Indicates the weight of the operating parameters of the box-type switch, Indicates the voltage of the main control line node of the box-type switchgear station. Indicates the rated voltage, Indicates the current of the main control line node of the box-type switchgear station, Indicates the rated current, Indicates the insulation resistance of the main control line node of the box-type switchgear. Indicates the standard value of insulation resistance. Indicates the three-phase voltage imbalance of the box-type switchgear. Indicates the standard limit of three-phase voltage unbalance. Indicates the three-phase current imbalance of the main control line node of the box-type switchgear. Indicates the standard limit value of three-phase current imbalance.

[0046] It should be noted that the secondary verification abnormal evaluation value of the box-type switchgear is obtained by analyzing the temperature, humidity and operating parameters of the box-type switchgear (voltage, current, insulation resistance, three-phase voltage imbalance and three-phase current imbalance of the main control line node of the box-type switchgear), taking into account the mutual influence between these parameters, for example: changes in temperature and humidity will directly affect the insulation performance of electrical equipment, accelerate the aging of insulation materials, reduce insulation resistance values, and thus increase the risk of electrical failures. At the same time, the voltage and current of the main control line node of the box-type switchgear are basic indicators for measuring its operating status. Abnormal fluctuations may be caused by problems such as equipment overload, short circuit or poor contact. The reduction of insulation resistance is directly related to the safety and reliability of the equipment, and is an important basis for judging whether the equipment has potential faults. The three-phase voltage imbalance and three-phase current imbalance reflect the symmetry problem in the power system. Excessive imbalance will not only cause equipment overheating and reduced efficiency, but may also cause misjudgment of protection devices, affecting the stable operation of the entire power system.

[0047] It should also be noted that the impact weight of the secondary verification environment of the box-type switchgear represents the numerical value of the influence of the secondary verification environment of the box-type switchgear on the secondary verification abnormal assessment value of the box-type switchgear. When used, the impact weight corresponding to the secondary verification environment of the box-type switchgear can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the secondary verification environment of the box-type switchgear and the impact weight of the secondary verification environment of the box-type switchgear form a mapping set, and the real-time secondary verification environment of the box-type switchgear is input into the mapping set to obtain the impact weight corresponding to the secondary verification environment of the box-type switchgear. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship. The influence weight of the operating parameters of the box-type switchgear represents the numerical value of the influence of the operating parameters of the box-type switchgear on the secondary verification abnormal assessment value of the box-type switchgear. When used, the influence weight corresponding to the operating parameters of the box-type switchgear can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the operating parameters of the box-type switchgear and the influence weight of the operating parameters of the box-type switchgear form a mapping set, and the real-time operating parameters of the box-type switchgear are input into the mapping set to obtain the influence weight corresponding to the operating parameters of the box-type switchgear. The mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0048] It should be understood that the secondary verification abnormal evaluation value of the box-type switchgear obtained by analyzing the temperature and humidity of the box-type switchgear with the operating parameters of the box-type switchgear also takes into account the influence of the temperature and humidity of the box-type switchgear on the operating parameters of the box-type switchgear, while the preliminary verification abnormal evaluation value of the box-type switchgear obtained by analyzing the temperature and humidity of the box-type switchgear with the external environmental data takes into account the influence of external factors on the temperature and humidity of the box-type switchgear. Therefore, the preliminary verification abnormal evaluation value of the box-type switchgear and the secondary verification abnormal evaluation value of the box-type switchgear are correlated but not the same.

[0049] The temperature and humidity inside the box-type switchgear are quoted in the method for obtaining the preliminary verification abnormal evaluation value of the box-type switchgear. This is due to the influence of the temperature and humidity inside the box-type switchgear on the preliminary verification abnormal evaluation value of the box-type switchgear. This is in parallel with the influence of the external environmental data on the preliminary verification abnormal evaluation value of the box-type switchgear, and they account for different proportions respectively. The temperature and humidity inside the box-type switchgear are quoted in the method for obtaining the secondary verification abnormal evaluation value of the box-type switchgear. This is due to the influence of the temperature and humidity inside the box-type switchgear on the secondary verification abnormal evaluation value of the box-type switchgear. This is in parallel with the collection of the operating parameters of the box-type switchgear, and they account for different proportions respectively. Although the temperature and humidity inside the box-type switchgear in the preliminary verification abnormal evaluation value of the box-type switchgear and the secondary verification abnormal evaluation value of the box-type switchgear are the same parameters, their influence effects are not the same, and their functions are also different. The secondary verification abnormal evaluation value of the box-type switchgear is obtained by taking into account the temperature and humidity inside the box-type switchgear and the operating parameters of the box-type switchgear, wherein the operating parameters of the box-type switchgear are the average data within the preset time period. By obtaining the average data within the preset time period, the waste of resources can be effectively avoided. By setting the sampling frequency and duration, the data collection of the box-type switchgear too frequently or for a long time can be avoided. This can not only ensure the representativeness of the data, but also reduce the energy consumption of sensors and data storage devices, thereby saving power resources. Not directly performing the secondary verification of the box-type switchgear can simplify the calculation process, reduce the calculation burden, and improve the evaluation efficiency. According to the actual operation and monitoring needs of the box-type switchgear, on-demand adjustment is carried out. When the box-type switchgear is in normal operation, only the necessary sensors are turned on for data collection; when an abnormality or potential risk is detected, more sensors are automatically turned on to obtain more comprehensive data, reducing the energy consumption of the sensors. Within the preset time period, according to the changing trend of the operating parameters and the need for abnormal warning, the number of sensors turned on is flexibly adjusted. This can not only meet the monitoring needs, but also save power resources to the maximum extent. By optimizing the use and opening strategy of sensors, downtime and resource loss caused by sensor failure are reduced. The reliability and stability of box-type switchgear data are improved, providing a strong guarantee for the safe operation of box-type switchgear.

[0050] Furthermore, a comprehensive analysis is performed based on the preliminary verification abnormality assessment value and the secondary verification abnormality assessment value of the box-type switchgear station to obtain a comprehensive assessment result, and the specific steps include: obtaining the weight corresponding to the preliminary verification abnormality assessment value of the box-type switchgear station preset in the database, and marking it as the preliminary verification abnormality impact weight, obtaining the weight corresponding to the secondary verification abnormality assessment value of the box-type switchgear station, and marking it as the secondary verification abnormality impact weight; analyzing based on the preliminary verification abnormality assessment value of the box-type switchgear station, the preliminary verification abnormality impact weight, the secondary verification abnormality assessment value of the box-type switchgear station, the secondary verification abnormality impact weight and the comprehensive correction factor of the box-type switchgear station to obtain the comprehensive abnormality assessment value of the box-type switchgear station; obtaining the comprehensive assessment abnormality threshold preset in the database, and analyzing it with the comprehensive abnormality assessment value of the box-type switchgear station to obtain the comprehensive assessment result.

[0051] Furthermore, the comprehensive correction factor of the box-type switchgear is obtained by: obtaining the comprehensive correction parameters of the box-type switchgear, including: compressor vibration frequency, compressor vibration intensity, compressor operating noise intensity and sensor historical average response time; obtaining the comprehensive correction reference parameters of the box-type switchgear, including: reference compressor vibration frequency, reference compressor vibration intensity, reference compressor operating noise intensity and reference sensor historical average response time; comparing the comprehensive correction parameters of the box-type switchgear with the comprehensive correction reference parameters of the box-type switchgear to obtain the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear, and mapping and matching the comprehensive correction factors corresponding to each comprehensive operation and maintenance characteristic coefficient interval preset in the database to obtain the comprehensive correction factor of the box-type switchgear, which is used to correct the comprehensive abnormal evaluation value of the box-type switchgear; the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear is used to characterize the degree of equipment aging of the box-type switchgear.

[0052] In this embodiment, the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear is obtained by:

[0053] ;

[0054] In the formula, represents the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear, e represents the natural constant, Indicates the vibration frequency of the compressor, Indicates the reference compressor vibration frequency, Indicates the vibration intensity of the compressor. Indicates the vibration intensity of the reference compressor, Indicates the operating noise intensity of the compressor. Indicates the operating noise intensity of the reference compressor. Indicates the historical average response time of the sensor. Indicates the historical average response time of the reference sensor. Indicates the weight of compressor vibration frequency, Indicates the weight of compressor vibration intensity, Indicates the weight of the compressor's operating noise intensity. Indicates the impact weight of the sensor's historical average response time.

[0055] It should be noted that the comprehensive correction factor of the box-type switch is obtained by analyzing the compressor vibration frequency, compressor vibration intensity, compressor operating noise intensity and sensor historical average response time, taking into account the mutual influence between these parameters. For example, the vibration frequency reflects the speed of movement of the mechanical parts inside the compressor, and the vibration intensity reflects the magnitude of the physical impact force generated by this movement on the compressor and its surrounding environment. As the vibration frequency increases, the vibration intensity also increases, because higher frequencies represent more frequent energy transfer and impact. When the vibration frequency and vibration intensity of the compressor increase at the same time, it has a negative impact on the structural integrity, sealing performance and operating stability of the box-type switch, resulting in loosening, wear or damage of the internal parts of the box-type switch, thereby affecting its overall performance. The operating noise intensity of the compressor is often closely related to its vibration parameters (such as vibration frequency and vibration intensity). The mechanical waves generated by vibration propagate in the air to form noise. Therefore, the increase in vibration parameters will lead to an increase in noise intensity. At the same time, long-term exposure to a high-noise environment will lead to accelerated aging or damage of the internal parts of the box-type switch, and vibration and noise will cause the mechanical parts inside the sensor to loosen or damage, thereby affecting its response speed and accuracy. In addition, if the sensor is installed close to a vibration or noise source, its response time may also be disturbed and prolonged.

[0056] It should be noted that the compressor vibration frequency and compressor vibration intensity can be obtained through a vibration analyzer or vibration sensor, the compressor operating noise intensity can be obtained through a noise meter or noise analyzer, and the sensor historical average response time can be obtained through a sensor with a response time measurement function integrated inside the box-type switchgear or special testing equipment.

[0057] It should also be noted that the compressor vibration frequency influence weight represents the numerical value of the influence degree of the compressor vibration frequency on the comprehensive correction factor of the box-type opening and closing. When used, the influence weight corresponding to the compressor vibration frequency can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the compressor vibration frequency and the compressor vibration frequency influence weight form a mapping set, and the real-time compressor vibration frequency is input into the mapping set to obtain the influence weight corresponding to the compressor vibration frequency, wherein the mapping relationship can be a one-to-one correspondence or a many-to-one relationship. The compressor vibration intensity influence weight represents the numerical value of the influence degree of the compressor vibration intensity on the comprehensive correction factor of the box-type opening and closing. When used, the influence weight corresponding to the compressor vibration intensity can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the compressor vibration intensity and the compressor vibration intensity influence weight form a mapping set, and the real-time compressor vibration intensity is input into the mapping set to obtain the influence weight corresponding to the compressor vibration intensity, wherein the mapping relationship can be a one-to-one correspondence or a many-to-one relationship. The weight of the impact of the compressor's operating noise intensity indicates the numerical value of the impact of the compressor's operating noise intensity on the comprehensive correction factor of the box-type switch. When used, the impact weight corresponding to the compressor's operating noise intensity can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the compressor's operating noise intensity and the weight of the impact of the compressor's operating noise intensity form a mapping set, and the real-time compressor's operating noise intensity is input into the mapping set to obtain the impact weight corresponding to the compressor's operating noise intensity, where the mapping relationship can be a one-to-one correspondence or a many-to-one relationship. The sensor's historical average response time impact weight indicates the numerical value of the impact of the sensor's historical average response time on the comprehensive correction factor of the box-type switch. When used, the impact weight corresponding to the sensor's historical average response time can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the sensor's historical average response time and the sensor's historical average response time impact weight form a mapping set, and the real-time sensor's historical average response time is input into the mapping set to obtain the impact weight corresponding to the sensor's historical average response time, where the mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0058] Furthermore, the comprehensive abnormal evaluation value of the box-type switch is obtained, and the specific method is as follows:

[0059] ;

[0060] In the formula, Indicates the comprehensive abnormal evaluation value of the box-type switchgear. represents a natural constant, Indicates the initial verification abnormal assessment value of the box-type switchgear. Indicates the abnormal evaluation value of the secondary verification of the box-type switchgear. Indicates the comprehensive correction factor of box-type switchgear, Indicates the initial verification of abnormal impact weight, Indicates the impact weight of secondary verification anomaly.

[0061] In this embodiment, it should be noted that the comprehensive abnormal evaluation value of the box-type switchgear is obtained by comprehensive analysis of the preliminary verification abnormal evaluation value of the box-type switchgear, the secondary verification abnormal evaluation value of the box-type switchgear and the comprehensive correction factor of the box-type switchgear. This is because the fusion of multiple parameters can more comprehensively reflect the abnormal situation of the box-type switchgear. Through verification and correction, the accuracy and reliability of the evaluation results can be improved. Combining multiple evaluation values ​​can more comprehensively reflect the possible abnormal situations of the box-type switchgear, including electrical parameter abnormalities, mechanical vibration abnormalities, noise abnormalities, etc. At the same time, the comprehensive abnormal evaluation value can be used as an important basis for operation and maintenance personnel to formulate maintenance plans, conduct troubleshooting and repair decisions.

[0062] It should be noted that the preliminary verification abnormal assessment value of the box-type switchgear obtained by analyzing the external environmental factors mainly takes into account the impact of external environmental factors on the temperature and humidity inside the box-type switchgear. The preliminary verification abnormal assessment value of the box-type switchgear can be completed in a shorter time, which saves valuable time for subsequent early warning and emergency processing, and preliminarily eliminates the interference of the external environment. The secondary verification abnormal assessment value of the box-type switchgear is obtained by analyzing the operating parameters of the box-type switchgear. The main consideration is that this method can identify abnormal conditions inside the box-type switchgear, reduce alarm omissions caused by internal operating errors, and thus improve the accuracy of the overall assessment.

[0063] It should also be noted that the impact weight of the initial verification anomaly represents the numerical value of the impact degree of the initial verification anomaly on the comprehensive abnormality evaluation value of the box-type opening and closing. When used, the impact weight corresponding to the initial verification anomaly can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the initial verification anomaly and the impact weight of the initial verification anomaly form a mapping set, and the real-time initial verification anomaly is input into the mapping set to obtain the impact weight corresponding to the initial verification anomaly, wherein the mapping relationship can be a one-to-one correspondence or a many-to-one relationship. The impact weight of the secondary verification anomaly represents the numerical value of the impact degree of the secondary verification anomaly on the comprehensive abnormality evaluation value of the box-type opening and closing. When used, the impact weight corresponding to the secondary verification anomaly can be directly obtained from the database, and the corresponding relationship can be a pre-set mapping relationship. For example, the secondary verification anomaly and the impact weight of the secondary verification anomaly form a mapping set, and the real-time secondary verification anomaly is input into the mapping set to obtain the impact weight corresponding to the secondary verification anomaly, wherein the mapping relationship can be a one-to-one correspondence or a many-to-one relationship.

[0064] Furthermore, an early warning is issued based on the comprehensive evaluation results, specifically including: the comprehensive evaluation results include: comprehensive evaluation normal and comprehensive evaluation abnormal; if the comprehensive abnormal evaluation value of the box-type switchgear is greater than the comprehensive evaluation abnormal threshold, the comprehensive evaluation result is comprehensive evaluation abnormal, and the early warning mechanism is triggered; if the comprehensive abnormal evaluation value of the box-type switchgear is below the comprehensive evaluation abnormal threshold, the comprehensive evaluation result is comprehensive evaluation normal, and the early warning mechanism is not triggered.

[0065] In this embodiment, the comprehensive evaluation results are divided into two categories: normal comprehensive evaluation and abnormal comprehensive evaluation. Normal comprehensive evaluation means that the temperature and humidity status of the box-type switchgear is within the preset safety range, and no additional monitoring or maintenance measures are required. Abnormal comprehensive evaluation means that the temperature and humidity status of the box-type switchgear exceeds the preset safety range, and there may be potential safety hazards or equipment failure risks. If the comprehensive abnormal evaluation value of the box-type switchgear is greater than the preset comprehensive evaluation abnormal threshold, it is determined to be a comprehensive evaluation abnormality. In the case of being determined to be a comprehensive evaluation abnormality, the box-type switchgear automatically triggers an early warning mechanism, which includes sending an alarm signal to Carry out emergency monitoring, generate abnormality reports, etc. If the comprehensive abnormality assessment value of the box-type switchgear is below the comprehensive assessment abnormality threshold, the comprehensive assessment is judged to be normal, the system does not trigger the early warning mechanism, and continues to execute the normal monitoring process. The measures taken after the early warning mechanism is triggered include but are not limited to: sending text messages or email notifications to the operation and maintenance personnel to remind them that there is an abnormality in the box-type switchgear; displaying the abnormal status on the monitoring interface to facilitate the operation and maintenance personnel to quickly locate the problem; starting additional monitoring equipment or sensors to obtain more detailed data for further analysis; generating an abnormality report to record the time, location, cause and recommended solutions of the abnormality.

[0066] By comprehensively judging the results of the evaluation, it is ensured that the early warning mechanism is triggered only when it is really needed, avoiding false alarms or missed alarms and improving the accuracy of the early warning. Through the early warning mechanism, operation and maintenance personnel can more efficiently manage the temperature and humidity status of the box-type switchgear, and focus limited resources on issues that really need attention, thereby improving operation and maintenance efficiency. Timely early warnings and responses help prevent potential safety hazards and equipment failures, thereby improving the operational safety and reliability of the box-type switchgear.

[0067] Furthermore, it also includes a preliminary verification threshold adjustment module, which is used to adjust the preliminary verification threshold according to the comprehensive abnormal evaluation value of the box-type switchgear if the comprehensive evaluation result is a comprehensive evaluation abnormality. The specific steps include: when the comprehensive evaluation result is a comprehensive evaluation abnormality, extracting the difference between the comprehensive abnormal evaluation value of the box-type switchgear and the comprehensive evaluation abnormal threshold, and recording it as the pre-adjustment abnormal evaluation difference; obtaining the verification adjustment factor corresponding to each abnormal evaluation difference interval preset in the database, matching the pre-adjustment abnormal evaluation difference with each preset abnormal evaluation difference interval, if the pre-adjustment abnormal evaluation difference is within a preset abnormal evaluation difference interval, obtaining the verification adjustment factor corresponding to the abnormal evaluation difference interval as the preliminary verification adjustment factor; subtracting the preliminary verification adjustment factor from the preliminary verification threshold to obtain a specified preliminary verification threshold, and adjusting the early warning mechanism of the box-type switchgear according to the specified preliminary verification threshold.

[0068] In this embodiment, by dynamically adjusting the preliminary verification threshold, the abnormal changes in temperature and humidity of the box-type switchgear can be captured more sensitively, reducing the possibility of missed reports. The threshold is adjusted according to the abnormal evaluation difference, so that the early warning mechanism is more in line with the actual operating status of the box-type switchgear, and the accuracy of the early warning is improved. The preliminary verification threshold adjustment module enables the box-type switchgear to make adaptive adjustments based on environmental changes, equipment aging and other factors, enhancing the adaptability and stability of the box-type switchgear.

[0069] It should be noted that the early warning mechanism of the box-type switchgear is adjusted according to the specified preliminary verification threshold. The specific method is: if the comprehensive evaluation result is an abnormal comprehensive evaluation, the specified preliminary verification threshold is obtained, and the specified preliminary verification threshold is used as the new benchmark of the early warning mechanism of the box-type switchgear, and the early warning trigger conditions are updated and adjusted again. For example, if the early warning threshold of the insulation resistance is reduced, when the insulation resistance value is lower than the early warning threshold of the new insulation resistance, the early warning is automatically triggered. Adjusting the early warning mechanism of the box-type switchgear according to the specified preliminary verification threshold enables the early warning mechanism to issue early warning signals in a timely manner and accurately reflect the actual operating status of the box-type switchgear, so that relevant personnel can quickly take countermeasures and improve efficiency.

[0070] To sum up, this embodiment avoids the false alarm problem caused by the fluctuation of ambient temperature and humidity in the box-type switchgear by real-time monitoring and adjusting the ambient temperature and humidity inside the box-type switchgear, thereby reducing the false alarm rate of the box-type switchgear, and effectively solving the problem in the prior art that it is difficult to accurately distinguish the non-fault effects of ambient temperature and humidity on the heat accumulation of equipment.

[0071] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0072] The present invention is described with reference to flowcharts and / or block diagrams of systems, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0073] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0074] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0075] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0076] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A box-type switchgear temperature and humidity intelligent early warning system, characterized in that: include: A data acquisition module is used to obtain the temperature, humidity and external environment data inside the box-type switchgear; A preliminary abnormality assessment module is used to obtain a preliminary verification abnormality assessment value of the box-type switchgear based on the temperature, humidity inside the box-type switchgear and external environmental data; The preliminary verification judgment module is used to obtain the preliminary verification threshold value preset in the database, and compare the preliminary verification abnormality evaluation value of the box-type switchgear with the preliminary verification threshold value to obtain the preliminary verification judgment result; The secondary verification execution judgment module is used to analyze the results of the preliminary verification judgment. If the preliminary verification judgment result is that the preliminary verification is normal, the secondary verification will not be performed. If the preliminary verification judgment result is that the preliminary verification is abnormal, the secondary verification will be performed. The secondary verification module is used to collect the operating parameters of the box-type switchgear station and analyze them in combination with the temperature and humidity inside the box-type switchgear station to obtain the secondary verification abnormality assessment value of the box-type switchgear station; The comprehensive abnormal warning module is used to conduct a comprehensive analysis based on the initial verification abnormal evaluation value of the box-type switchgear and the secondary verification abnormal evaluation value of the box-type switchgear to obtain a comprehensive evaluation result, and issue an early warning based on the comprehensive evaluation result; The specific method for obtaining the preliminary verification abnormal evaluation value of the box-type switch is as follows: Obtain the internal reference temperature, internal reference humidity, and reference external environmental data of the box-type switchgear preset in the database and compare them with the internal temperature, humidity, and external environmental data of the box-type switchgear to obtain a preliminary verification abnormal assessment value of the box-type switchgear; The reference external environment data includes: reference external environment temperature, reference external environment humidity, reference external wind speed and reference external environment air pressure; The external environment data includes: external environment temperature, external environment humidity, external wind speed and external environment air pressure; The box-type switchgear station preliminary verification abnormal evaluation value is used to characterize the degree of abnormality of the preliminary detection environment of the box-type switchgear station; The preliminary verification abnormality evaluation value of the box-type switch is compared with the preliminary verification threshold to obtain a preliminary verification judgment result, and the specific steps include: Obtain the preliminary verification threshold preset in the database and compare it with the preliminary verification abnormality assessment value of the box-type switchgear. If the preliminary verification abnormality assessment value of the box-type switchgear is greater than the preliminary verification threshold, the preliminary verification judgment result is preliminary verification abnormality. If the preliminary verification abnormality assessment value of the box-type switchgear is below the preliminary verification threshold, the preliminary verification judgment result is preliminary verification normal.

2. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 1, characterized in that: The specific method for collecting the operating parameters of the box-type switch is as follows: Collect the operating parameters of the box-type switchgear through the electrical tester; The operating parameters of the box-type switchgear station include: voltage, current, insulation resistance, three-phase voltage imbalance and three-phase current imbalance of the main control line node of the box-type switchgear station.

3. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 2, characterized in that: The specific steps of obtaining the secondary verification abnormal evaluation value of the box-type switchgear include: Obtain the rated set of operating parameters of the box-type switchgear preset in the database; Compare the temperature, humidity and operating parameters of the box-type switchgear station with the preset internal reference temperature, internal reference humidity and rated set of box-type switchgear station operating parameters in the database to obtain the secondary verification abnormality assessment value of the box-type switchgear station; The secondary verification abnormality evaluation value of the box-type switchgear station is used to characterize the degree of abnormality of the secondary verification of the box-type switchgear station; The rated set of operating parameters of box-type switchgear includes: rated voltage, rated current, standard value of insulation resistance, standard limit of three-phase voltage unbalance and standard limit of three-phase current unbalance.

4. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 1, characterized in that: The above-mentioned steps of performing a comprehensive analysis based on the initial verification abnormal evaluation value of the box-type switchgear and the secondary verification abnormal evaluation value of the box-type switchgear to obtain a comprehensive evaluation result include: Obtain the weight corresponding to the abnormal evaluation value of the preliminary verification of the box-type switchgear preset in the database, and mark it as the initial verification abnormality impact weight; obtain the weight corresponding to the abnormal evaluation value of the secondary verification of the box-type switchgear, and mark it as the secondary verification abnormality impact weight; According to the preliminary verification abnormality assessment value of the box-type switchgear station, the preliminary verification abnormality impact weight, the secondary verification abnormality assessment value of the box-type switchgear station, the secondary verification abnormality impact weight and the comprehensive correction factor of the box-type switchgear station, the comprehensive abnormality assessment value of the box-type switchgear station is obtained; The preset comprehensive assessment abnormality threshold in the database is obtained, and it is analyzed with the comprehensive abnormality assessment value of the box-type switch to obtain the comprehensive assessment result.

5. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 4, characterized in that: The comprehensive correction factor of the box-type switch is obtained as follows: Obtain comprehensive calibration parameters of the box-type switch, including: compressor vibration frequency, compressor vibration intensity, compressor operation noise intensity and sensor historical average response time; Obtain comprehensive calibration reference parameters of the box-type switch, including: reference compressor vibration frequency, reference compressor vibration intensity, reference compressor operation noise intensity and reference sensor historical average response time; Compare the comprehensive correction parameters of the box-type switchgear station with the comprehensive correction reference parameters of the box-type switchgear station to obtain the comprehensive operation and maintenance characteristic coefficient of the box-type switchgear station, and map and match the comprehensive correction factors corresponding to each comprehensive operation and maintenance characteristic coefficient interval preset in the database to obtain the comprehensive correction factor of the box-type switchgear station, which is used to correct the comprehensive abnormal evaluation value of the box-type switchgear station; The comprehensive operation and maintenance characteristic coefficient of the box-type switchgear station is used to characterize the degree of aging of the equipment in the box-type switchgear station.

6. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 4, characterized in that: The specific method for obtaining the comprehensive abnormal evaluation value of the box-type switch is as follows: ； In the formula, Indicates the comprehensive abnormal evaluation value of the box-type switchgear. represents a natural constant, Indicates the initial verification abnormal assessment value of the box-type switchgear. Indicates the abnormal evaluation value of the secondary verification of the box-type switchgear. Indicates the comprehensive correction factor of box-type switchgear, Indicates the initial verification of abnormal impact weight, Indicates the impact weight of secondary verification anomaly.

7. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 4, characterized in that: The early warning according to the comprehensive assessment results specifically includes: The comprehensive assessment results include: normal comprehensive assessment and abnormal comprehensive assessment; If the comprehensive abnormal evaluation value of the box-type switchgear is greater than the comprehensive evaluation abnormal threshold, the comprehensive evaluation result is a comprehensive evaluation abnormality and the early warning mechanism is triggered. If the comprehensive abnormal evaluation value of the box-type switchgear is below the comprehensive evaluation abnormal threshold, the comprehensive evaluation result is a comprehensive evaluation normal and the early warning mechanism is not triggered.

8. The intelligent early warning system for temperature and humidity of a box-type switchgear as claimed in claim 1, characterized in that: It also includes a preliminary verification threshold adjustment module, which is used to adjust the preliminary verification threshold according to the comprehensive abnormal evaluation value of the box-type switch if the comprehensive evaluation result is a comprehensive evaluation abnormality. The specific steps include: When the comprehensive evaluation result is a comprehensive evaluation abnormality, the difference between the comprehensive abnormal evaluation value of the box-type switch and the comprehensive evaluation abnormal threshold is extracted and recorded as the pre-adjustment abnormal evaluation difference; Obtain the verification adjustment factor corresponding to each abnormal assessment difference interval preset in the database, match the pre-adjusted abnormal assessment difference with each preset abnormal assessment difference interval, and if the pre-adjusted abnormal assessment difference is within a preset abnormal assessment difference interval, obtain the verification adjustment factor corresponding to the abnormal assessment difference interval as the preliminary verification adjustment factor; The preliminary verification threshold is subtracted from the preliminary verification adjustment factor to obtain the designated preliminary verification threshold, and the early warning mechanism of the box-type switchgear is adjusted according to the designated preliminary verification threshold.

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