A fault monitoring method and system for a military port power transfer system

Abstract

The present invention relates to the technical field of power fault monitoring, and specifically discloses a fault monitoring method and system for a military port power transfer system. The method comprises: power transfer equipment detection, power transfer equipment performance analysis, military port power transfer monitoring and military port power transfer monitoring early warning. By detecting the performance of the power transfer equipment, the performance degradation or potential fault problems of each power transfer equipment can be discovered in time, and preventive measures can be taken to avoid performance failure of the power transfer equipment. By real-time monitoring of environmental parameters and operating data of power transfer safety equipment, power transfer equipment with abnormal operation can be accurately identified, and early warning can be issued, which can effectively reduce the risk of power system interruption or damage caused by equipment failure, and ensure the high reliability of the military port power transfer system.

Description

Technical Field

[0001] The present invention relates to the technical field of power fault monitoring, and in particular to a fault monitoring method and system for a military port power transfer system. Background Art

[0002] At present, with the rapid development of modern military facilities, the military port power transfer system, as a key infrastructure to ensure the smooth progress of military activities, has increasingly higher requirements for safety and reliability. However, with the complexity and scale of the military port power transfer system, the military port power transfer system involves many power transfer equipment. During the long-term operation of these devices, due to the influence of environmental factors, equipment aging and other reasons, their performance will gradually decline, and even fail, seriously affecting the stability and safety of the military port power transfer system.

[0003] For example, the invention patent with publication number CN116754857A discloses a method and device for fault detection of a power system, and a power system. The method includes: obtaining first characteristic data and second characteristic data; inputting the first characteristic data and second characteristic data into a power system operation state determination model to process the first characteristic data and second characteristic data using the power system operation state determination model; obtaining the operation state corresponding to the first characteristic data and second characteristic data obtained by processing the first characteristic data and second characteristic data by the power system operation state determination model; and determining whether a fault occurs in the target power system according to the operation state.

[0004] For example, the invention patent with publication number CN117949764A discloses a method for detecting power faults, collecting relevant data in the power system, preprocessing the collected data, extracting features, classifying and locating faults, analyzing and repairing faults, recording and analyzing data, recording faults and post-analysis, regular maintenance and fault prevention. The method collects relevant data in the power system, determines the data to be collected, selects appropriate sensors, and selects appropriate data acquisition equipment to record and store the data collected by the sensors.

[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] In the existing technology, power failure detection only relies on the overall operating status of the power system to determine whether there is a power failure, which leads to insufficient accuracy in power equipment fault monitoring and failure to timely discover potential fault hazards of power equipment, thus affecting the stable operation of the power system. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a fault monitoring method and system for a military port power transfer system, which can effectively solve the problems involved in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: The first aspect of the present invention provides a fault monitoring method for a military port power transfer system, including: power transfer equipment detection: performing performance detection on each power transfer equipment installed in the area to which the military port power transfer subsystem belongs, and obtaining performance data of each power transfer equipment; power transfer equipment performance analysis: analyzing the performance data of each power transfer equipment, obtaining the performance index value of each power transfer equipment, and comparing it with the power transfer equipment performance index value threshold preset in the power fault database, obtaining each power transfer safety device and each power transfer potential fault device, and performing power transfer analysis on each power transfer potential fault device through the military port power transfer subsystem. Performance failure warning for faulty equipment; Military port power transfer monitoring: monitor the environment of the area to which the military port power transfer subsystem belongs and the operation of each power transfer safety equipment respectively, obtain the environmental data of the military port and the operation data of each power transfer safety equipment, and conduct comprehensive analysis to obtain the operating environment adaptation index of each power transfer safety equipment; Military port power transfer monitoring and early warning: compare the operating environment adaptation index of each power transfer safety equipment with the power transfer safety equipment operating environment adaptation index threshold preset in the power fault database, obtain each power transfer operation abnormal equipment, and finally issue an operation failure warning for each power transfer operation abnormal equipment through the military port power transfer subsystem.

[0009] As a further method, the specific analysis process of the performance index values ​​of each power transfer device is as follows:

[0010] The maximum load of each power switching device during the detection period is processed by ratio with the rated load of each power switching device preset in the power fault database to obtain the load rate of each power switching device during the detection period.

[0011] The historical fault times of each power transfer device, the load rate of each power transfer device during the detection period, the average power switching time period and the maximum anti-electromagnetic interference strength are comprehensively processed to obtain the performance index value of each power transfer device.

[0012] As a further method, the specific analysis process of obtaining each power transfer safety device and each power transfer potential fault device is as follows:

[0013] The performance index value of each power transfer device is compared with the power transfer device performance index value threshold value preset in the power fault database. The specific comparison process is as follows:

[0014] If a power transfer device performance index value is greater than or equal to a power transfer device performance index value threshold preset in the power fault database, the power transfer device is recorded as a power transfer safety device, thereby obtaining statistics of various power transfer safety devices.

[0015] If the performance index value of a power transfer device is less than the power transfer device performance index value threshold preset in the power fault database, the power transfer device is recorded as a power transfer potential fault device, thereby counting the power transfer potential fault devices.

[0016] As a further method, the military port power transfer subsystem performs performance fault early warning prompts on each power transfer potential fault device, and the specific early warning prompt process is:

[0017] By analyzing the performance data of each power transfer device, the performance index value of each power transfer device is obtained. At the same time, the performance index value of each power transfer device is compared with the power transfer device performance index value threshold preset in the power fault database, and the various power transfer potential fault devices are counted. In this way, the performance index corresponding to each power transfer potential fault device is comprehensively obtained.

[0018] The performance index corresponding to each power transfer potential fault device is processed with the power transfer device performance index value threshold preset in the power fault database, and the difference result is recorded as the performance deviation index of each power transfer potential fault device.

[0019] The performance deviation index of each power transfer potential fault equipment is matched with the potential fault level corresponding to the performance deviation index interval of each power transfer potential fault equipment preset in the power fault database, and finally a corresponding performance warning prompt is given to each power transfer potential fault equipment according to the potential fault level.

[0020] As a further method, the operating environment adaptation index of each power transfer safety device is specifically analyzed as follows:

[0021] Comprehensively analyze the average wind speed, average seawater temperature and average salt spray concentration of the naval port environment during the monitoring period to obtain the naval port environmental impact index;

[0022] The military port environmental impact index is matched with the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​corresponding to each military port environmental impact index interval preset in the power fault database, thereby obtaining the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​of the power transfer safety equipment in the current military port environment.

[0023] The average vibration frequency, average contact resistance, minimum insulation resistance and maximum anti-electromagnetic interference strength of each power transfer safety equipment during the monitoring period are comprehensively analyzed with the reference vibration frequency, contact reference resistance and insulation resistance limit value of the power transfer safety equipment in the current military port environment to obtain the operating environment adaptation index of each power transfer safety equipment. The specific analysis formula is:

[0024] ;

[0025] In the formula, is the adaptation index of the operating environment of the i-th power transfer safety device, i is the number of each power transfer safety device, i=1, 2, 3...j, j is the total number of power transfer safety devices, is the average vibration frequency of the ith power transfer safety device during the monitoring period, It is the reference vibration frequency of the power transfer safety equipment in the current military port environment. Correction factor corresponding to the average vibration frequency preset in the power fault database, is the average contact resistance of the ith power transfer safety device during the monitoring period, It is the contact reference resistance of the power transfer safety equipment in the current naval port environment. Correction factor corresponding to the average contact resistance preset for the power fault database, is the minimum insulation resistance of the ith power transfer safety device during the monitoring period, The insulation resistance limit value of the power transfer safety equipment in the current naval port environment. Correction factor for the minimum insulation resistance preset in the power fault database, is the maximum anti-electromagnetic interference strength of the ith power transfer safety equipment during the monitoring period, The impact factor corresponding to the maximum anti-electromagnetic interference strength preset for the power fault database.

[0026] As a further method, the military port power transfer subsystem performs operation fault warning for each power transfer operation abnormal device, and the specific warning process is as follows:

[0027] Compare the operating environment adaptation index of each power transfer safety device with the power transfer safety device operating environment adaptation index threshold preset in the power fault database; if the operating environment adaptation index of a power transfer safety device is greater than or equal to the preset power transfer safety device operating environment adaptation index threshold, no additional operation is performed; if the operating environment adaptation index of a power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer safety device is recorded as a power transfer operation abnormality device, and an operation fault warning prompt is immediately issued;

[0028] If the operating environment adaptation index of a certain power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer safety device is recorded as a power transfer operation abnormal device, and a fault warning prompt is immediately run. The specific warning prompt process is as follows:

[0029] If the operating environment adaptation index of a power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer device is recorded as a power transfer operation abnormal device, thereby obtaining statistics of various power transfer operation abnormal devices.

[0030] Through comprehensive analysis of the environmental data of the military port and the operating data of each power transfer safety equipment, the operating environment adaptation index of each power transfer safety equipment is obtained. At the same time, the operating environment adaptation index of each power transfer safety equipment is compared with the preset power transfer safety equipment operating environment adaptation index threshold value preset in the power fault database, and the potential fault equipment of each power transfer is counted, thereby comprehensively obtaining the operating environment adaptation index corresponding to each power transfer operation abnormal equipment.

[0031] The operating environment adaptation index corresponding to each power transfer operation abnormality device is processed with the preset operating environment adaptation index threshold, and the difference result is marked as the operation abnormality deviation index of each power transfer device.

[0032] The abnormal operation deviation index of each power transfer equipment is matched with the operation fault level corresponding to the abnormal operation deviation index interval of each power transfer equipment stored in the power fault database. Finally, the military port power transfer subsystem will issue an operation fault warning prompt to each power transfer operation abnormality equipment according to the fault level.

[0033] The second aspect of the present invention provides a fault monitoring system for a military port power transfer system, including: a power transfer equipment detection module, which is used to perform performance detection on each power transfer equipment installed in the area to which the military port power transfer subsystem belongs, and obtain performance data of each power transfer equipment.

[0034] The power transfer equipment performance analysis module is used to analyze the performance data of each power transfer equipment, obtain the performance index value of each power transfer equipment, and compare it with the power transfer equipment performance index value threshold preset in the power fault database, obtain each power transfer safety equipment and each power transfer potential fault equipment, and provide performance fault warning prompts for each power transfer potential fault equipment through the military port power transfer subsystem.

[0035] The military port power transfer monitoring module is used to monitor the environment of the area to which the military port power transfer subsystem belongs and the operation of each power transfer safety equipment, obtain the environmental data of the military port and the operating data of each power transfer safety equipment, and conduct a comprehensive analysis to obtain the operating environment adaptation index of each power transfer safety equipment.

[0036] The military port power transfer monitoring and early warning module is used to compare the operating environment adaptation index of each power transfer safety equipment with the power transfer safety equipment operating environment adaptation index threshold preset in the power fault database, obtain each power transfer operation abnormality equipment, and finally issue an operation fault early warning prompt to each power transfer operation abnormality equipment through the military port power transfer subsystem.

[0037] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0038] (1) The present invention performs performance testing on each power transfer device installed in the area to which the military port power transfer subsystem belongs, obtains performance data of each power transfer device, and performs analysis to obtain performance index values ​​of each power transfer device. By testing the performance of the power transfer devices, it is possible to timely discover performance degradation or potential failure problems of each power transfer device, thereby taking preventive measures to avoid performance failures of the power transfer devices.

[0039] (2) The present invention compares the performance index value of each power transfer device with the power transfer device performance index value threshold value preset in the power fault database, and can timely discover and identify potential faulty equipment by real-time monitoring and comparing the performance index of the power transfer equipment. This early warning mechanism enables operation and maintenance personnel to take necessary maintenance or replacement measures before the fault actually occurs, thereby effectively preventing the occurrence of power system interruptions or failures.

[0040] (3) The present invention monitors the environment of the area to which the military port power transfer subsystem belongs and the operation of each power transfer safety device respectively. By real-time monitoring of environmental parameters, adverse factors that may affect the operation of the power transfer equipment can be discovered in time, so that measures can be taken to avoid equipment failures caused by environmental factors. By monitoring the operating status of the power transfer safety device, the operating data of the power transfer safety device can be obtained in real time, and potential faults or abnormal conditions can be discovered in time.

[0041] (4) The present invention can more accurately evaluate the adaptability of the operating environment of the power transfer safety equipment by comprehensively analyzing the environmental data and equipment operation data. By comparing with the preset threshold, it can accurately identify the equipment with abnormal operation and issue early warnings, so that the operation and maintenance personnel can respond quickly and take measures to prevent the expansion of the fault. The abnormal operation of the power transfer equipment can be discovered and handled in time, which can effectively reduce the risk of power system interruption or damage caused by equipment failure. This is particularly important for power transfer in military ports, ensuring the high reliability of the military port power transfer system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0043] Figure 1 The figure is a schematic flow chart of the method steps of the present invention.

[0044] Figure 2 It is a schematic diagram of system module connection of the present invention.

[0045] Figure 3 This is a simulation curve diagram of average wind speed and average salt spray concentration involved in the present invention. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] Reference Figure 1 As shown, the first aspect of the present invention provides a fault monitoring method for a military port power transfer system, including: power transfer equipment detection: performing performance detection on each power transfer equipment installed in the area to which the military port power transfer subsystem belongs, and obtaining performance data of each power transfer equipment.

[0048] It needs to be explained that the above-mentioned naval port power transfer subsystem is a part of the naval port power transfer system, which is mainly responsible for the transfer and distribution of electricity between different equipment and different areas. This subsystem usually includes a series of power transfer equipment, such as transformers, switchgear, cables, etc. They work together to ensure that electricity can be safely and efficiently transmitted to various electrical equipment and areas within the naval port. In this embodiment, the above-mentioned power transfer equipment includes but is not limited to transformers, circuit breakers, distribution boards, relays, power converters, and voltage stabilizers.

[0049] Performance analysis of power transfer equipment: Analyze the performance data of each power transfer equipment to obtain the performance index value of each power transfer equipment, and compare it with the power transfer equipment performance index value threshold preset in the power fault database to obtain each power transfer safety device and each power transfer potential fault device, and provide performance fault warning prompts for each power transfer potential fault device through the military port power transfer subsystem.

[0050] Military port power transfer monitoring: monitor the environment of the area to which the military port power transfer subsystem belongs and the operation of each power transfer safety equipment, obtain the environmental data of the military port and the operating data of each power transfer safety equipment, and conduct a comprehensive analysis to obtain the operating environment adaptation index of each power transfer safety equipment.

[0051] Naval port power transfer monitoring and early warning: Compare the operating environment adaptation index of each power transfer safety equipment with the power transfer safety equipment operating environment adaptation index threshold preset in the power fault database to obtain each power transfer operation abnormality equipment, and finally issue an operation fault early warning prompt to each power transfer operation abnormality equipment through the naval port power transfer subsystem.

[0052] In this embodiment, the fault monitoring of the military port power transfer system is carried out in real time during the military port power transfer process, and then the operating status of the power transfer system is evaluated, which can effectively improve the reliability and stability of the military port power transfer and provide strong guarantee for the power transfer of military facilities.

[0053] Specifically, the performance data of each power transfer device includes the number of historical failures of each power transfer device, the maximum load carrying capacity of each power transfer device within a detection period, the average power switching time period and the maximum anti-electromagnetic interference strength.

[0054] In this embodiment, the detection cycle of each of the above-mentioned power transfer devices is usually to conduct a comprehensive performance test on the power transfer equipment within a predetermined time period. The detection cycle is not continuous, but is set according to the maintenance plan or specific needs of the power transfer equipment. Performing performance testing of the power transfer equipment during the operation of the power transfer equipment can more truly reflect the performance of the equipment under actual working conditions, including its ability to cope with external factors such as load changes and electromagnetic interference.

[0055] It needs to be explained that the historical number of failures of each of the above-mentioned power transfer devices can be obtained by querying the failure records in the military port power transfer subsystem. The maximum load-bearing capacity of each power transfer device during the detection period can be monitored in real time by using sensors and monitoring equipment to monitor the operating status of the power transfer equipment. These monitoring equipment can be connected to the power input terminal or the key load terminal of the power transfer equipment to record the current, voltage and other parameters in real time. By analyzing these parameters, the maximum power-bearing capacity of the equipment during the detection period can be calculated, and the maximum load-bearing capacity can be determined; the average power switching time period of each power transfer device during the detection period can be obtained by real-time monitoring and recording its power switching process to obtain the average switching time period. The maximum anti-electromagnetic interference strength of each power transfer device during the detection period can be obtained by electromagnetic interference monitoring instruments to monitor and record the electric field and magnetic field strength around the equipment in real time, provide accurate electromagnetic interference data, and perform maximum value analysis on the electromagnetic interference data, thereby identifying the maximum electromagnetic interference intensity encountered by the power transfer device under the current operating conditions.

[0056] Specifically, the performance index values ​​of each power transfer device are analyzed in the following steps:

[0057] The maximum load of each power switching device during the detection period is processed by ratio with the rated load of each power switching device preset in the power fault database to obtain the load rate of each power switching device during the detection period.

[0058] The historical fault times of each power transfer device, the load rate of each power transfer device during the detection period, the average power switching time period and the maximum anti-electromagnetic interference strength are comprehensively processed to obtain the performance index value of each power transfer device. The specific analysis formula is:

[0059] ,

[0060] in, ;

[0061] In the formula, is the performance index value of the ath power transfer device, a is the number of each power transfer device, a=1, 2, 3...n, n is the total number of power transfer devices, e is a natural constant, is the comparison relationship between the load rate of the ath power transfer device and the reference load rate.

[0062] is the historical failure count of the ath power switching device, which refers to the total number of failures that have occurred in the power switching device since it was put into use.

[0063] The impact factor corresponding to the unit value of the historical fault number preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed according to the historical fault number and the impact factor corresponding to the unit value of the historical fault number preset in the power fault database, and the real-time historical fault number is input into the mapping set to obtain the impact factor corresponding to the unit value of the historical fault number. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0064] is the load rate of the ath power transfer device during the detection period, which refers to the ratio of the maximum load of the device to the rated load of the power transfer device during the detection period.

[0065] The reference load rate preset for the power fault database refers to a load rate standard preset in the power transfer system for evaluating the performance of the power transfer equipment.

[0066] The correction factor corresponding to the load rate preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed according to the historical load rate and the correction factor corresponding to the load rate preset in the power fault database, and the real-time load rate is input into the mapping set to obtain the correction factor corresponding to the load rate. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0067] It is the average power switching time period of the ath power transfer device within the detection cycle, which refers to the average value of the time required for the power transfer device to successfully take over and stabilize the power supply from the failure of the main power supply to the successful takeover of the backup power supply during the automatic power switching process within the detection cycle.

[0068] The impact factor corresponding to the unit value of the average power switching time period preset in the power fault database can be directly obtained from the power fault database. The corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed according to the historical average power switching time period and the impact factor corresponding to the unit value of the average power switching time period preset in the power fault database, and the real-time average power switching time period is input into the mapping set to obtain the impact factor corresponding to the unit value of the average power switching time period. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0069] is the maximum anti-electromagnetic interference strength of the ath power switching device during the detection cycle, which refers to the maximum electromagnetic interference level that the power switching device can withstand without causing performance degradation or failure during the detection cycle.

[0070] The influence factor corresponding to the maximum anti-electromagnetic interference intensity unit value preset in the power fault database can be directly obtained from the power fault database. The corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed based on the historical maximum anti-electromagnetic interference intensity and the influence factor corresponding to the maximum anti-electromagnetic interference intensity unit value preset in the power fault database, and the real-time maximum anti-electromagnetic interference intensity is input into the mapping set to obtain the influence factor corresponding to the maximum anti-electromagnetic interference intensity unit value. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0071] In this embodiment, if the power transfer device has a large number of historical failures, it means that the power transfer device has frequently encountered problems in its past operations, which directly reflects that the reliability of the device is low. If the load rate of the power transfer device during the detection period deviates greatly from the preset reference load rate, especially when the actual load rate is much higher than the reference load rate, the power transfer device will be subjected to greater current and power, causing the internal temperature of the power transfer device to increase. Long-term operation at high temperatures will accelerate the aging and damage of the internal components of the device, which will lead to an increase in the failure of the power transfer device. If the average power switching time period of the power transfer device during the detection period is long, it means that during the power switching process, the power transfer device may not be able to immediately provide a stable power supply, which may cause the load device to be out of power or low voltage during the switching period. state, thereby affecting its normal operation. If the maximum anti-electromagnetic interference strength of the power transfer equipment during the detection period is weak, if there is strong electromagnetic interference in the current operating environment, the power transfer equipment cannot effectively resist this electromagnetic interference. Electromagnetic interference may cause the performance parameters of the power transfer equipment to deviate from normal values, such as prolonged power switching response time, thereby affecting the overall working efficiency of the equipment. At the same time, strong electromagnetic interference may also cause malfunctions of the equipment, such as erroneous signal transmission, instruction execution, etc., and may even cause equipment shutdown or crash in severe cases. Therefore, through a detailed analysis of the various parameters in the performance indicator values ​​of each power transfer equipment, the performance of each power transfer equipment can be comprehensively evaluated, which helps to discover equipment performance bottlenecks and potential problems, and provide a basis for subsequent performance warning prompts.

[0072] It needs to be explained that there is a close correlation between the number of historical failures of the above-mentioned power transfer equipment, the load rate of each power transfer equipment during the detection period, the average power switching time period and the maximum anti-electromagnetic interference intensity. These parameters jointly affect the performance indicators of the power transfer equipment. Among them, a high load rate may cause the equipment to overheat and increase wear, thereby increasing the number of failures. Frequent failures may also cause the equipment to be unable to operate at full load during maintenance, affecting the load rate. Failures that may occur during the power switching process (such as switching failure, too long switching time, etc.) will increase the number of historical failures. Electromagnetic interference may cause equipment malfunction or damage, thereby increasing the number of failures. The stronger the equipment's anti-electromagnetic interference ability, the more it is affected by the external electromagnetic environment. Under high load, the device may need more frequent power switching to meet the load demand, but this will also increase the risk of switching failure. Under high load rate, the device may be more susceptible to electromagnetic interference because the electromagnetic field strength may increase with the increase of load. Although there are other parameters in other embodiments that can reflect the performance of the power transfer device (such as energy efficiency ratio, power factor, etc.), these parameters usually focus more on the energy efficiency and electrical characteristics of the device, and are not directly related to the reliability of the device. In comparison, the number of historical failures, load rate, average power switching time period and maximum anti-electromagnetic interference strength more directly reflect the key performance of the device in actual operation, and have higher practical value for evaluating device performance.

[0073] In this embodiment, the impact factor corresponding to the unit value of the above-mentioned historical fault number is set to 0.3, the reference load rate is 70%, the correction factor corresponding to the load rate is 0.2, the impact factor corresponding to the unit value of the average power switching time period is 0.2, and the impact factor corresponding to the unit value of the maximum anti-electromagnetic interference strength is 0.2. From this, a data relationship table between the performance index values ​​of each power transfer device and each parameter can be obtained, as shown in Table 1, the performance index value table of power transfer equipment.

[0074] Table 1 Performance index table of power transfer equipment

[0075] serial number Number of historical failures (times) Load factor (%) Average power switching time period (seconds) Maximum electromagnetic interference resistance (watts per square meter) Power transfer equipment performance index values 1 1 75% 0.3 5 3.41 2 3 80% 0.5 3 2.19 3 5 85% 2 2.5 1.79 4 4 90% 1 2 1.73

[0076] By observing the data in the power transfer equipment performance index value table in Table 1 above, it is found that the power transfer equipment performance index value changes according to the changes in the number of historical faults, load rate, average power switching time period and maximum anti-electromagnetic interference strength. When the deviation between the load rate and the reference load rate is smaller, the value of the maximum anti-electromagnetic interference strength is larger, and the values ​​of the number of historical faults and the average power switching time period are smaller, the obtained power transfer equipment performance index value is larger, which means that the performance of the current power transfer equipment is better.

[0077] Furthermore, the specific analysis process of obtaining each power transfer safety device and each power transfer potential fault device is as follows:

[0078] The performance index value of each power transfer device is compared with the power transfer device performance index value threshold value preset in the power fault database. The specific comparison process is as follows:

[0079] If a power transfer device performance index value is greater than or equal to a power transfer device performance index value threshold preset in the power fault database, the power transfer device is recorded as a power transfer safety device, thereby obtaining statistics of various power transfer safety devices.

[0080] It needs to be explained that when the performance index value of a certain power transfer equipment is greater than or equal to the power transfer equipment performance index value threshold preset in the power fault database, it indicates that the performance of the power transfer equipment is excellent under the current detection state, and the equipment has achieved the expected goals in design and manufacturing, and may even exceed them. Therefore, the power transfer equipment is recorded as a power transfer safety device, and statistics of each power transfer safety device are obtained, providing a basis for subsequent operation monitoring of each power transfer safety device.

[0081] If the performance index value of a power transfer device is less than the power transfer device performance index value threshold preset in the power fault database, the power transfer device is recorded as a power transfer potential fault device, thereby counting the power transfer potential fault devices.

[0082] It needs to be explained that when the performance index value of a certain power transfer device is less than the power transfer device performance index value threshold preset in the power fault database, it indicates that the performance of the power transfer device is not ideal under the current detection state, suggesting that there are certain potential problems with the power transfer device. These problems may cause the power transfer device to be more prone to failure or performance degradation in future operation. Therefore, the power transfer device is recorded as a power transfer potential fault device, and statistics are compiled for each power transfer potential fault device, providing a basis for subsequent performance warning prompts for each power transfer potential fault device.

[0083] Specifically, the military port power transfer subsystem performs performance fault early warning prompts on each power transfer potential fault device, and the specific early warning prompt process is:

[0084] By analyzing the performance data of each power transfer device, the performance index value of each power transfer device is obtained. At the same time, the performance index value of each power transfer device is compared with the power transfer device performance index value threshold preset in the power fault database, and the various power transfer potential fault devices are counted. In this way, the performance index corresponding to each power transfer potential fault device is comprehensively obtained.

[0085] It needs to be explained that the performance indicators corresponding to the above-mentioned power transfer devices with potential faults are the power transfer devices whose performance indicator values ​​are less than the power transfer device performance indicator value thresholds preset in the power fault database, which are recorded as power transfer devices with potential faults. Therefore, each power transfer device with potential faults is included in each power transfer device. If the performance indicator value of a power transfer device is less than the power transfer device performance indicator value thresholds preset in the power fault database, then the power transfer device is a power transfer device with potential faults, and the performance indicator value of the power transfer device is the performance indicator corresponding to the power transfer device with potential faults. From this, the performance indicators corresponding to each power transfer device with potential faults can be derived.

[0086] The performance index corresponding to each power transfer potential fault device is processed with the power transfer device performance index value threshold preset in the power fault database, and the difference result is recorded as the performance deviation index of each power transfer potential fault device.

[0087] The performance deviation index of each power transfer potential fault equipment is matched with the potential fault level corresponding to the performance deviation index interval of each power transfer potential fault equipment preset in the power fault database, and finally a corresponding performance warning prompt is given to each power transfer potential fault equipment according to the potential fault level.

[0088] It should be explained that the above matching of the performance deviation index of each power transfer potential fault device with the potential fault level corresponding to the performance deviation index interval of each power transfer potential fault device preset in the power fault database is specifically carried out as follows:

[0089] In this embodiment, the performance deviation index intervals of each power transfer potential fault device are divided into intervals less than 6 and intervals greater than or equal to 6. The corresponding two potential fault levels are the fault warning level and the fault alarm level. When the performance deviation index of a power transfer potential fault device is at the fault warning level, the specific performance fault warning prompt is: Warning: The performance deviation of the power transfer potential fault device is large. Please check and prepare for maintenance as soon as possible. When the performance deviation index of a power transfer potential fault device is at the fault alarm level, the specific performance fault alarm prompt is: Emergency: The performance of the power transfer potential fault device is seriously deviated. Please shut down and repair it immediately.

[0090] In the present embodiment, the performance deviation index intervals of the above-mentioned power transfer potential fault equipment are divided into intervals less than 6 and intervals greater than or equal to 6, and the corresponding two potential fault levels are the fault warning level and the fault alarm level, wherein the division of the performance deviation index intervals of each power transfer potential fault equipment is determined by comprehensively considering historical data analysis, fault pattern identification, performance deviation index calculation, statistical analysis, expert experience and other factors, to ensure that the power transfer system can issue an effective warning before a potential fault occurs, thereby ensuring the stable operation of the system.

[0091] Specifically, the environmental data of the naval port include the average wind speed, average sea water temperature and average salt spray concentration of the naval port environment during the monitoring period.

[0092] It needs to be explained that the average wind speed in the environment of the above-mentioned naval port during the monitoring period can be directly measured and recorded by an anemometer. The average wind speed data can be averaged during the monitoring period to obtain the average wind speed. The average sea water temperature in the environment of the naval port during the monitoring period is obtained by collecting the sea water temperature data of these ocean monitoring stations and averaging the sea water temperature during the monitoring period to obtain the average sea water temperature. The average salt spray concentration in the environment of the naval port during the monitoring period can be obtained by collecting the salt spray concentration data released by the atmospheric monitoring station and averaging the salt spray concentration during the monitoring period to obtain the average salt spray concentration.

[0093] Specifically, the operating environment adaptation index of each power transfer safety device is analyzed in the following steps:

[0094] A comprehensive analysis of the average wind speed, average seawater temperature and average salt spray concentration of the naval port environment during the monitoring period was conducted to obtain the naval port environmental impact index. The specific analysis formula is:

[0095] ,

[0096] in, ;

[0097] In the formula, is the naval port environmental impact index, e is a natural constant, It is the comparison between the average seawater temperature and the reference seawater temperature.

[0098] It is the average wind speed of the naval port environment during the monitoring period, which refers to the average value of the wind speed observed during the monitoring period.

[0099] The influencing factor corresponding to the average wind speed preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed according to the historical average wind speed and the influencing factor corresponding to the average wind speed preset in the power fault database, and the real-time average wind speed is input into the mapping set to obtain the influencing factor corresponding to the average wind speed. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0100] It is the average seawater temperature of the naval port environment during the monitoring period, which refers to the average value of the seawater temperature observed during the monitoring period.

[0101] The seawater reference temperature preset for the power fault database refers to a standard seawater temperature value based on which the power transfer system fault monitoring is set.

[0102] The correction factor corresponding to the average seawater temperature preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed based on the historical average seawater temperature and the correction factor corresponding to the average seawater temperature preset in the power fault database, and the real-time average seawater temperature is input into the mapping set to obtain the correction factor corresponding to the average seawater temperature. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0103] It is the average salt spray concentration of the naval port environment during the monitoring period, which refers to the average value of the salt spray concentration observed during the monitoring period.

[0104] The influencing factor corresponding to the average salt spray concentration preset in the power fault database can be directly obtained from the power fault database. The corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed according to the historical average salt spray concentration and the influencing factor corresponding to the average salt spray concentration preset in the power fault database, and the real-time average salt spray concentration is input into the mapping set to obtain the influencing factor corresponding to the average salt spray concentration. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0105] In this embodiment, when the average wind speed of the environment of the naval port during the monitoring period is relatively high, strong wind or abnormal wind speed may cause problems such as power line swing and equipment damage. These situations will significantly increase the difficulty of fault monitoring. When the average seawater temperature of the environment of the naval port during the monitoring period deviates greatly from the preset seawater reference temperature, when the seawater temperature deviates from the preset reference temperature, it will accelerate the corrosion process and have an adverse effect on the insulation performance and mechanical strength of the power transfer equipment. At the same time, high-temperature seawater may also increase the heat dissipation burden of the power transfer equipment, causing the power transfer equipment to overheat, reduce the operating efficiency and service life. When the average salt spray concentration of the environment of the naval port during the monitoring period is relatively high, the high-concentration salt spray will accelerate the corrosion process. At the same time, after the salt spray adheres to the surface of the power equipment, it will form a conductive film, which will reduce the insulation performance of the equipment. Therefore, by conducting a detailed analysis of the various parameters in the naval port environmental impact indicators, it can help identify environmental factors that may cause power failures and formulate corresponding countermeasures, thereby reducing the risk of power failures and ensuring the safety of the naval port power transfer system.

[0106] In this embodiment, there is a certain correlation between the average wind speed, average seawater temperature and average salt spray concentration of the environment of the above-mentioned naval port during the monitoring period. The average wind speed is a key factor affecting the distribution and concentration of salt spray. High wind speed usually intensifies the evaporation of seawater and the generation of droplets, thereby increasing the concentration of salt spray. Changes in seawater temperature may affect the evaporation rate of seawater and the solubility of salt, thereby affecting the concentration of salt spray. Changes in average wind speed may affect the mixing and heat exchange process of seawater, thereby affecting the temperature distribution of seawater.

[0107] According to the above description of the relationship between the average wind speed and the average salt spray concentration, a simulation curve diagram about the relationship between the average wind speed and the average salt spray concentration can be constructed, as shown in the following figure: Figure 3 The average wind speed and average salt spray concentration simulation curve is shown in the figure. Figure 3 In the simulation curve of average wind speed and average salt spray concentration, the horizontal axis is the average wind speed, in meters per second, and the vertical axis is the average salt spray concentration, in milligrams per cubic meter; by observing Figure 3 The simulation curve of average wind speed and average salt spray concentration shows that there is an overall positive correlation between the average wind speed and the average salt spray concentration. As the wind speed increases, the salt spray concentration will also increase accordingly.

[0108] In this embodiment, the above-mentioned influence factor corresponding to the average wind speed is set to 0.2, the seawater reference temperature is 25 degrees Celsius, the correction factor corresponding to the average seawater temperature is 0.3, and the influence factor corresponding to the average salt spray concentration is 0.5. Thus, a relationship table between the naval port environmental impact index and each parameter can be obtained, as shown in Table 2 Naval Port Environmental Impact Index Table.

[0109] Table 2 Naval Port Environmental Impact Index

[0110] Average wind speed (meters per second) Average sea temperature (Celsius) Average salt spray concentration (mg per cubic meter) Naval Port Environmental Impact Index 5 14 0.025 4.09 8 20 0.25 8.6 10 22 1.3 14.69

[0111] By observing the data in the table 2 of the military port environmental impact index, it is found that the military port environmental impact index changes according to the changes in the average wind speed, the average sea water temperature and the average salt spray concentration. When the average wind speed and the average salt spray concentration are larger, the deviation of the average sea water temperature from the sea water reference temperature is greater, and the obtained military port environmental impact index value is also larger, which means that the current military port environment is worse.

[0112] Furthermore, the operation data of each power transfer safety device specifically includes an average vibration frequency, an average contact resistance, a minimum insulation resistance, and a maximum anti-electromagnetic interference strength of each power transfer safety device during a monitoring period.

[0113] In this embodiment, the monitoring period of the environment of the military port and the monitoring period of each power transfer safety device are the same monitoring period, which is different from the detection period of each power transfer device. The monitoring period refers to the time interval for continuously monitoring the environment of the area to which the military port power transfer subsystem belongs and the operation of each power transfer safety device. Through real-time monitoring, the operating data of the environment and the power transfer safety device are obtained to evaluate the adaptability of the power transfer safety device to the operating environment and timely discover operational abnormalities. The monitoring period and the detection period are both important means to ensure the stable operation of the power transfer system, and together constitute the fault monitoring system of the system. The results of the detection period may be used as one of the bases for evaluating the equipment failure status in the monitoring period. The detection period focuses more on the in-depth evaluation of the performance of the power transfer equipment itself, while the monitoring period focuses more on the continuous tracking of the environment and the operating status of the power transfer equipment.

[0114] It should be explained that the average vibration frequency of each of the above-mentioned power transfer safety devices during the monitoring period is obtained by installing a vibration sensor on the power transfer safety device, collecting the vibration data transmitted by the sensor, processing and analyzing it, and averaging the vibration frequency during the monitoring period to obtain the average vibration frequency. The average contact resistance of each of the power transfer safety devices during the monitoring period can be obtained by using a contact resistance tester to monitor multiple contact parts of the power transfer safety device (for example, plug and socket contact, contactor contact, busbar and terminal contact, switch contact, cable connector) and calculate the average contact resistance. The minimum insulation resistance of each of the power transfer safety devices during the monitoring period can be obtained by using an insulation resistance monitor to monitor the insulation part of the power transfer safety device and record the minimum insulation resistance value. The maximum anti-electromagnetic interference strength of each of the power transfer safety devices during the monitoring period is obtained by using an electromagnetic interference monitoring instrument to monitor and record the electric field and magnetic field strength around the device in real time, provide accurate electromagnetic interference data, and perform maximum value analysis on the electromagnetic interference data, thereby identifying the maximum electromagnetic interference strength encountered by the power transfer safety device under the current operating conditions.

[0115] The military port environmental impact index is matched with the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​corresponding to each military port environmental impact index interval preset in the power fault database, thereby obtaining the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​of the power transfer safety equipment in the current military port environment.

[0116] It should be explained that the above military port environmental impact index is matched with the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​corresponding to each military port environmental impact index interval preset in the power fault database. The specific matching method is:

[0117] The power fault database includes multiple military port environmental impact index intervals, each interval corresponds to a set of reference vibration frequency, contact reference resistance and insulation resistance limit values, these intervals and corresponding parameter values ​​are preset based on historical data and expert experience, the obtained environmental impact index is compared with the interval in the power fault database to determine which interval the obtained environmental impact index belongs to, that is, if the current environmental impact index is within the range of a certain interval, the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​corresponding to the interval are selected, and finally according to the matching results, the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​of the power transfer safety equipment in the environment of the current military port are obtained, and the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​corresponding to each military port environmental impact index interval preset in the power fault database are matched respectively to ensure that the operating parameters of the power transfer safety equipment are highly matched with the environmental conditions, reflecting the optimal or acceptable range of the operation of the power transfer safety equipment under the same environmental conditions, and following these reference values ​​can significantly reduce the failure risk of the power transfer safety equipment caused by improper parameter settings, thereby improving the overall reliability of the power transfer safety equipment.

[0118] The average vibration frequency, average contact resistance, minimum insulation resistance and maximum anti-electromagnetic interference strength of each power transfer safety equipment during the monitoring period are comprehensively analyzed with the reference vibration frequency, contact reference resistance and insulation resistance limit value of the power transfer safety equipment in the current military port environment to obtain the operating environment adaptation index of each power transfer safety equipment. The specific analysis formula is:

[0119] ;

[0120] In the formula, is the adaptation index of the operating environment of the i-th power transfer safety device, i is the number of each power transfer safety device, i=1, 2, 3...j, j is the total number of power transfer safety devices.

[0121] is the average vibration frequency of the ith power transfer safety device in the monitoring period, which refers to the average value of the vibration frequency of the power transfer safety device in the monitoring period.

[0122] The reference vibration frequency of the power transfer safety equipment in the current environment of the military port refers to a specific value of a vibration frequency matched in the power transfer system according to the current environment of the military port, which is used as a reference for fault monitoring, diagnosis and early warning.

[0123] The correction factor corresponding to the average vibration frequency preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed according to the historical average vibration frequency and the correction factor corresponding to the average vibration frequency preset in the power fault database, and the real-time average vibration frequency is input into the mapping set to obtain the correction factor corresponding to the average vibration frequency. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0124] is the average contact resistance of the ith power transfer safety device during the monitoring period, which refers to the average value of the contact resistance of the power transfer safety device during the monitoring period.

[0125] The contact reference resistance of the power transfer safety equipment in the current environment of the military port refers to a specific value of the contact resistance matched in the power transfer system according to the current environment of the military port, which is used as a reference for fault monitoring, diagnosis and early warning.

[0126] The correction factor corresponding to the average contact resistance preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed based on the historical average contact resistance and the correction factor corresponding to the average contact resistance preset in the power fault database, and the real-time average contact resistance is input into the mapping set to obtain the correction factor corresponding to the average contact resistance. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0127] is the minimum insulation resistance of the ith power transfer safety device within the monitoring period, and refers to the minimum value of the insulation resistance of the power transfer safety device within the monitoring period.

[0128] The insulation resistance limit value of the power transfer safety equipment in the current military port environment refers to the minimum insulation resistance value matched in the power transfer system according to the current military port environment, which is used as a reference for fault monitoring, diagnosis and early warning.

[0129] The correction factor corresponding to the minimum insulation resistance preset in the power fault database can be directly obtained from the power fault database, and the corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed based on the historical minimum insulation resistance and the correction factor corresponding to the minimum insulation resistance preset in the power fault database, and the real-time minimum insulation resistance is input into the mapping set to obtain the correction factor corresponding to the minimum insulation resistance. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0130] is the maximum anti-electromagnetic interference strength of the ith power transfer safety device during the monitoring period, which refers to the maximum electromagnetic interference level that the power transfer safety device can withstand without performance degradation or failure during the monitoring period.

[0131] The influence factor corresponding to the maximum anti-electromagnetic interference intensity preset in the power fault database can be directly obtained from the power fault database. The corresponding relationship can be a preset mapping relationship. For example, a mapping set is formed based on the historical maximum anti-electromagnetic interference intensity and the influence factor corresponding to the maximum anti-electromagnetic interference intensity unit value preset in the power fault database, and the real-time maximum anti-electromagnetic interference intensity is input into the mapping set to obtain the influence factor corresponding to the maximum anti-electromagnetic interference intensity unit value. The mapping relationship can be one-to-one or many-to-one. At the same time, in this example, its value range is [0, 1].

[0132] In this embodiment, when the average vibration frequency of the power transfer safety device during the monitoring period deviates greatly from the reference vibration frequency, it means that the power transfer safety device is affected by additional mechanical stress during operation, resulting in slight deformation or wear of the internal structure and components of the power transfer safety device, thereby affecting the overall operation of the power transfer safety device. When the average contact resistance deviates greatly from the contact reference resistance, the power transfer safety device cannot work normally or its working efficiency is reduced. When the minimum insulation resistance deviates greatly from the insulation resistance limit value, it indicates that the insulation performance of the device has been significantly reduced. The reduction in insulation performance will cause the leakage current of the device to increase during normal operation, thereby causing problems such as voltage drop and increased power loss. If the power The maximum anti-electromagnetic interference intensity of the power transfer safety equipment during the monitoring period is weak, which will cause the power transfer safety equipment to be unable to effectively resist strong electromagnetic interference, and then cause the performance parameters of the power transfer safety equipment to deviate from normal values, thereby affecting the overall working efficiency of the power transfer safety equipment. At the same time, strong electromagnetic interference may also cause malfunctions of the equipment, such as incorrect signal transmission, instruction execution, etc. In severe cases, it may even cause the power transfer safety equipment to shut down or crash. Therefore, through a detailed analysis of the parameters in the power transfer safety equipment operating environment adaptation indicators, abnormal conditions in equipment operation can be discovered in time, such as vibration frequency deviation, increased contact resistance, decreased insulation resistance, etc., to ensure the stable operation of the power transfer safety equipment.

[0133] In this embodiment, as a military facility, the geographical location and environmental conditions of the military port are often special. These special characteristics include natural factors such as marine climate, high salinity, strong wind, and special environmental impacts brought about by military activities. These factors may have a significant impact on the operating environment of the power transfer safety equipment, so they need special consideration. At the same time, a more rigorous and comprehensive evaluation of the operating environment of the power transfer safety equipment is a necessary measure to ensure the smooth, safe and stable operation of the power transfer safety equipment. At the same time, the average vibration frequency, average contact resistance, minimum insulation resistance and maximum anti-electromagnetic interference strength directly reflect the performance status of the power transfer safety equipment, and there is a correlation between these parameters. In a certain mutual influence relationship, for example, an increase in vibration frequency may cause loosening and wear of the internal structure of the equipment, which in turn affects the changes in contact resistance and insulation resistance; similarly, a decrease in contact resistance and insulation resistance may also lead to a decrease in the electrical performance of the equipment and an increase in safety hazards. These parameters are sensitive to environmental changes and can reflect the impact of environmental factors on equipment performance. For example, changes in vibration frequency may be affected by sea breeze; changes in contact resistance and insulation resistance may be affected by environmental factors such as seawater temperature and high salinity. By monitoring changes in these parameters, potential power transfer equipment operation problems can be discovered and dealt with in a timely manner to ensure the normal operation of power transfer safety equipment.

[0134] Specifically, the military port power transfer subsystem provides an early warning of operation failures for each power transfer operation abnormality device, and the specific early warning process is as follows:

[0135] The operating environment adaptation index of each power transfer safety device is compared with the power transfer safety device operating environment adaptation index threshold preset in the power fault database. If the operating environment adaptation index of a power transfer safety device is greater than or equal to the preset power transfer safety device operating environment adaptation index threshold, no additional operation is performed. If the operating environment adaptation index of a power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer safety device is recorded as an abnormal power transfer operation device, and an operation fault warning prompt is immediately issued.

[0136] It needs to be explained that when the operating environment adaptation index of a certain power transfer safety device is greater than or equal to the preset power transfer safety device operating environment adaptation index threshold, it means that the operating environment adaptation index of the power transfer safety device is within the preset safe or acceptable range. In other words, the current operating environment and performance status of the power transfer safety device meet the requirements and do not exceed the limits of safety or performance standards. Therefore, in this case, no additional operation or intervention is required, and the power transfer safety device can operate normally. When the operating environment adaptation index of a certain power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, it means that the operating environment adaptation index of the device is already lower than the preset safe or acceptable range, which usually means that there is some problem with the operating status of the device, which may have an adverse impact on the normal operation and safety of the power transfer safety device. Therefore, in this case, the device needs to be immediately marked as an abnormal power transfer operation device and an operating failure warning prompt is issued.

[0137] If the operating environment adaptation index of a certain power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer safety device is recorded as a power transfer operation abnormal device, and a fault warning prompt is immediately run. The specific warning prompt process is as follows:

[0138] If the operating environment adaptation index of a power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer device is recorded as a power transfer operation abnormal device, thereby obtaining statistics of various power transfer operation abnormal devices.

[0139] Through comprehensive analysis of the environmental data of the military port and the operating data of each power transfer safety equipment, the operating environment adaptation index of each power transfer safety equipment is obtained. At the same time, the operating environment adaptation index of each power transfer safety equipment is compared with the preset power transfer safety equipment operating environment adaptation index threshold value preset in the power fault database, and the potential fault equipment of each power transfer is counted, thereby comprehensively obtaining the operating environment adaptation index corresponding to each power transfer operation abnormal equipment.

[0140] It needs to be explained that the operating environment adaptation index corresponding to the above-mentioned power transfer operation abnormality devices is that each power transfer safety device whose operating environment adaptation index is less than the preset power transfer safety device operating environment adaptation index threshold is recorded as each power transfer operation abnormality device, so each power transfer operation abnormality device is included in each power transfer safety device. If the operating environment adaptation index of a power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, then the power transfer safety device is the power transfer operation abnormality device, and the operating environment adaptation index of the power transfer safety device is the operating environment adaptation index corresponding to the power transfer operation abnormality device. From this, the operating environment adaptation index corresponding to each power transfer operation abnormality device can be derived.

[0141] The operating environment adaptation index corresponding to each power transfer operation abnormality device is processed with the preset power transfer safety device operating environment adaptation index threshold, and the difference result is marked as the operation abnormality deviation index of each power transfer device.

[0142] The abnormal operation deviation index of each power transfer equipment is matched with the operation fault level corresponding to the abnormal operation deviation index interval of each power transfer equipment stored in the power fault database. Finally, the military port power transfer subsystem will issue an operation fault warning prompt to each power transfer operation abnormality equipment according to the fault level.

[0143] It should be explained that the above matching of the abnormal operation deviation index of each power transfer device with the operation fault level corresponding to the abnormal operation deviation index interval of each power transfer device stored in the power fault database is specifically carried out as follows:

[0144] In this embodiment, the operation abnormal deviation index intervals of each power transfer equipment are divided into an interval less than 0.6 and an interval greater than or equal to 0.6. The two operation fault levels corresponding to the two intervals are the operation fault warning level and the operation fault alarm level. When the operation abnormal deviation index of a power transfer equipment is at the operation fault warning level, the specific operation fault warning prompt is a preliminary abnormal warning, checking the operating status of the power transfer equipment and the environment of the military port to prevent the situation from deteriorating. When the operation abnormal deviation index of a power transfer equipment is at the operation fault alarm level, the specific operation fault warning prompt is a high-level risk alarm, immediately inspecting and maintaining the power transfer equipment to avoid serious operation faults of the power transfer equipment.

[0145] In this embodiment, the above-mentioned operation abnormal deviation index interval of each power transfer equipment is divided into an interval less than 0.6 and an interval greater than or equal to 0.6. The two operation fault levels corresponding to the two intervals are the operation fault warning level and the operation fault alarm level. The division of the operation abnormal deviation index interval of each power transfer equipment is based on a large amount of historical power transfer data, expert professional knowledge and actual test results. Through continuous optimization and adjustment, the accuracy and reliability of the interval division are ensured, thereby improving the fault warning capability of the power transfer equipment.

[0146] Reference Figure 2 As shown, the second aspect of the present invention provides a fault monitoring system for a military port power transfer system, including: a power transfer equipment detection module, a power transfer equipment performance analysis module, a military port power transfer monitoring module, a military port power transfer monitoring and early warning module and a power fault database.

[0147] The power transfer equipment detection module is connected to the power transfer equipment performance analysis module, the power transfer equipment performance analysis module is connected to the military port power transfer monitoring module, the military port power transfer monitoring module is connected to the military port power transfer monitoring and early warning module, and the power transfer equipment performance analysis module, the military port power transfer monitoring module and the military port power transfer monitoring and early warning module are all connected to the power fault database.

[0148] The power transfer equipment detection module is used to perform performance detection on each power transfer equipment installed in the area of ​​the military port power transfer subsystem to obtain performance data of each power transfer equipment.

[0149] The power transfer equipment performance analysis module is used to analyze the performance data of each power transfer equipment, obtain the performance index value of each power transfer equipment, and compare it with the power transfer equipment performance index value threshold preset in the power fault database, obtain each power transfer safety equipment and each power transfer potential fault equipment, and provide performance fault warning prompts for each power transfer potential fault equipment through the military port power transfer subsystem.

[0150] The military port power transfer monitoring module is used to monitor the environment of the area to which the military port power transfer subsystem belongs and the operation of each power transfer safety equipment, obtain the environmental data of the military port and the operating data of each power transfer safety equipment, and conduct a comprehensive analysis to obtain the operating environment adaptation index of each power transfer safety equipment.

[0151] The military port power transfer monitoring and early warning module is used to compare the operating environment adaptation index of each power transfer safety equipment with the power transfer safety equipment operating environment adaptation index threshold preset in the power fault database, obtain each power transfer operation abnormality equipment, and finally issue an operation fault early warning prompt to each power transfer operation abnormality equipment through the military port power transfer subsystem.

[0152] The power fault database is used to store preset power transfer equipment performance index value thresholds, preset power transfer safety equipment operating environment adaptation index thresholds, preset rated loads of each power transfer equipment, influence factors corresponding to preset historical fault number unit values, preset reference load rates, correction factors corresponding to preset load rates, influence factors corresponding to preset power supply average switching time period unit values, influence factors corresponding to preset maximum anti-electromagnetic interference intensity unit values, performance deviation index intervals of each power transfer potential fault equipment, potential fault levels corresponding to each power transfer potential fault equipment performance deviation index interval, influence factors corresponding to preset average wind speeds, preset reference wind speeds, preset seawater reference temperatures, correction factors corresponding to preset average seawater temperatures, preset salt spray reference concentrations, influence factors corresponding to preset average salt spray concentrations, reference vibration frequencies, contact reference resistances and insulation resistance boundary values ​​corresponding to each military port environmental impact index interval, correction factors corresponding to preset average contact resistances, preset insulation resistance boundary values, correction factors corresponding to preset minimum insulation resistances, operation abnormality deviation index intervals of each power transfer equipment, and operation fault levels corresponding to each operation abnormality deviation index intervals of each power transfer equipment.

[0153] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A fault monitoring method for a military port power transfer system, characterized in that: include: Power transfer equipment testing: Perform performance testing on each power transfer equipment installed in the area of ​​the military port power transfer subsystem to obtain performance data of each power transfer equipment; Power transfer equipment performance analysis: Analyze the performance data of each power transfer equipment to obtain the performance index value of each power transfer equipment, and compare it with the power transfer equipment performance index value threshold preset in the power fault database to obtain each power transfer safety equipment and each power transfer potential fault equipment, and issue a performance fault warning prompt to each power transfer potential fault equipment through the military port power transfer subsystem; Military port power transfer monitoring: monitor the environment of the area where the military port power transfer subsystem belongs and the operation of each power transfer safety equipment, obtain the environmental data of the military port and the operation data of each power transfer safety equipment, and conduct a comprehensive analysis to obtain the operating environment adaptation index of each power transfer safety equipment; Military port power transfer monitoring and early warning: Compare the operating environment adaptation index of each power transfer safety equipment with the power transfer safety equipment operating environment adaptation index threshold preset in the power fault database to obtain each power transfer operation abnormal equipment, and finally issue an operation fault early warning prompt to each power transfer operation abnormal equipment through the military port power transfer subsystem; The performance data of each power transfer device specifically includes the number of historical failures of each power transfer device, the maximum load carrying capacity of each power transfer device during a detection period, the average power switching time period, and the maximum anti-electromagnetic interference strength; The specific analysis process of the performance index values ​​of the power transfer equipment is as follows: The maximum load of each power transfer device during the detection period is processed by ratio with the rated load of each power transfer device preset in the power fault database to obtain the load rate of each power transfer device during the detection period; Comprehensively process the number of historical failures of each power transfer device, the load rate of each power transfer device during the detection period, the average power switching time period, and the maximum anti-electromagnetic interference strength to obtain the performance index value of each power transfer device; The environmental data of the naval port specifically include the average wind speed, average seawater temperature and average salt spray concentration of the naval port environment during the monitoring period; The operation data of each power transfer safety device specifically includes the average vibration frequency, average contact resistance, minimum insulation resistance and maximum anti-electromagnetic interference strength of each power transfer safety device during the monitoring period; The specific analysis process of the operating environment adaptation index of each power transfer safety equipment is as follows: Comprehensively analyze the average wind speed, average seawater temperature and average salt spray concentration of the naval port environment during the monitoring period to obtain the naval port environmental impact index; The military port environmental impact index is matched with the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​corresponding to each military port environmental impact index interval preset in the power fault database, thereby obtaining the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​of the power transfer safety equipment in the current military port environment; The average vibration frequency, average contact resistance, minimum insulation resistance and maximum anti-electromagnetic interference strength of each power transfer safety equipment during the monitoring period are comprehensively analyzed with the reference vibration frequency, contact reference resistance and insulation resistance limit values ​​of the power transfer safety equipment in the current military port environment to obtain the operating environment adaptation indicators of each power transfer safety equipment.

2. According to claim 1, a fault monitoring method for a military port power transfer system is characterized in that: The specific analysis process of obtaining each power transfer safety device and each power transfer potential fault device is as follows: The performance index value of each power transfer device is compared with the power transfer device performance index value threshold value preset in the power fault database. The specific comparison process is as follows: If the performance index value of a certain power transfer device is greater than or equal to the power transfer device performance index value threshold value preset in the power fault database, the power transfer device is recorded as a power transfer safety device, thereby obtaining statistics of various power transfer safety devices; If the performance index value of a power transfer device is less than the power transfer device performance index value threshold preset in the power fault database, the power transfer device is recorded as a power transfer potential fault device, thereby counting the power transfer potential fault devices.

3. The fault monitoring method of a military port power transfer system according to claim 1 is characterized in that: The military port power transfer subsystem provides performance fault warning for each power transfer potential fault device. The specific warning process is as follows: By analyzing the performance data of each power transfer device, the performance index value of each power transfer device is obtained, and at the same time, the performance index value of each power transfer device is compared with the power transfer device performance index value threshold value preset in the power fault database, and the various power transfer potential fault devices are counted, thereby comprehensively obtaining the performance index corresponding to each power transfer potential fault device; Perform difference processing on the performance index corresponding to each power transfer potential fault device and the power transfer device performance index value threshold preset in the power fault database, and record the difference result as the performance deviation index of each power transfer potential fault device; The performance deviation index of each power transfer potential fault equipment is matched with the potential fault level corresponding to the performance deviation index interval of each power transfer potential fault equipment preset in the power fault database, and finally a corresponding performance warning prompt is given to each power transfer potential fault equipment according to the potential fault level.

4. The fault monitoring method of a military port power transfer system according to claim 1 is characterized in that: The specific analysis formula of the operating environment adaptation index of each power transfer safety equipment is as follows: ； In the formula, is the adaptation index of the operating environment of the i-th power transfer safety device, i is the number of each power transfer safety device, i=1, 2, 3...j, j is the total number of power transfer safety devices, is the average vibration frequency of the ith power transfer safety device during the monitoring period, It is the reference vibration frequency of the power transfer safety equipment in the current military port environment. Correction factor corresponding to the average vibration frequency preset in the power fault database, is the average contact resistance of the ith power transfer safety device during the monitoring period, It is the contact reference resistance of the power transfer safety equipment in the current naval port environment. Correction factor corresponding to the average contact resistance preset for the power fault database, is the minimum insulation resistance of the ith power transfer safety device during the monitoring period, The insulation resistance limit value of the power transfer safety equipment in the current naval port environment. Correction factor for the minimum insulation resistance preset in the power fault database, is the maximum anti-electromagnetic interference strength of the ith power transfer safety equipment during the monitoring period, The impact factor corresponding to the maximum anti-electromagnetic interference strength preset for the power fault database.

5. The fault monitoring method of a military port power transfer system according to claim 1 is characterized in that: The military port power transfer subsystem is used to provide an early warning of operation failures for each power transfer operation abnormality device. The specific early warning process is as follows: Compare the operating environment adaptation index of each power transfer safety device with the power transfer safety device operating environment adaptation index threshold preset in the power fault database; if the operating environment adaptation index of a power transfer safety device is greater than or equal to the preset power transfer safety device operating environment adaptation index threshold, no additional operation is performed; if the operating environment adaptation index of a power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer safety device is recorded as a power transfer operation abnormality device, and an operation fault warning prompt is immediately issued; If the operating environment adaptation index of a certain power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer safety device is recorded as a power transfer operation abnormal device, and a fault warning prompt is immediately run. The specific warning prompt process is as follows: If the operating environment adaptation index of a certain power transfer safety device is less than the preset power transfer safety device operating environment adaptation index threshold, the power transfer device is recorded as a power transfer operation abnormal device, thereby obtaining statistics of various power transfer operation abnormal devices; By comprehensively analyzing the environmental data of the military port and the operating data of each power transfer safety device, the operating environment adaptation index of each power transfer safety device is obtained. At the same time, the operating environment adaptation index of each power transfer safety device is compared with the preset power transfer safety device operating environment adaptation index threshold value preset in the power fault database, and the various power transfer potential fault devices are counted, thereby comprehensively obtaining the operating environment adaptation index corresponding to each power transfer operation abnormal device; Perform difference processing on the operating environment adaptation index corresponding to each power transfer operation abnormal device and the preset operating environment adaptation index threshold, and mark the difference result as the operation abnormal deviation index of each power transfer device; The abnormal operation deviation index of each power transfer equipment is matched with the operation fault level corresponding to the abnormal operation deviation index interval of each power transfer equipment stored in the power fault database. Finally, the military port power transfer subsystem will issue an operation fault warning prompt to each power transfer operation abnormality equipment according to the fault level.

6. A system using a fault monitoring method for a military port power transfer system as claimed in any one of claims 1 to 5, characterized in that: include: The power transfer equipment detection module is used to perform performance detection on each power transfer equipment installed in the area to which the military port power transfer subsystem belongs, and obtain the performance data of each power transfer equipment; The power transfer equipment performance analysis module is used to analyze the performance data of each power transfer equipment, obtain the performance index value of each power transfer equipment, and compare it with the power transfer equipment performance index value threshold preset in the power fault database, obtain each power transfer safety equipment and each power transfer potential fault equipment, and issue a performance fault warning prompt to each power transfer potential fault equipment through the military port power transfer subsystem; The military port power transfer monitoring module is used to monitor the environment of the area where the military port power transfer subsystem belongs and the operation of each power transfer safety equipment, obtain the environmental data of the military port and the operation data of each power transfer safety equipment, and conduct a comprehensive analysis to obtain the operating environment adaptation index of each power transfer safety equipment; The military port power transfer monitoring and early warning module is used to compare the operating environment adaptation index of each power transfer safety equipment with the power transfer safety equipment operating environment adaptation index threshold preset in the power fault database, obtain each power transfer operation abnormality equipment, and finally issue an operation fault early warning prompt to each power transfer operation abnormality equipment through the military port power transfer subsystem.

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