Safe operation monitoring system and device for power equipment

Abstract

The invention relates to the technical field of power system and equipment monitoring, in particular to a safe operation monitoring system and device for power equipment. Comprising the following parts: a data acquisition module used for acquiring work cycles of power generation equipment and power storage equipment in seaside power equipment and seaside environment data; wherein the work cycle comprises staged power generation time and staged power supply time, and the seaside environment data comprises temperature, humidity and salt mist concentration; and the first monitoring module is used for monitoring the interaction between the salt mist concentration and the power equipment in the working period of the power equipment, and obtaining a first monitoring period of the power equipment based on the interaction. Salt mist phase change and equipment operation are dynamically correlated, corrosion is avoided based on salt film period and working condition matching, insulation mutation is captured through multi-parameter early warning, the power generation and storage ratio is optimized, the corrosion risk is reduced, environment perception, operation strategy and monitoring cooperation are achieved, stable output of the system is guaranteed, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power system and equipment monitoring, and particularly to a safety operation monitoring system and device for power equipment. Background Art

[0002] With the rapid construction of new energy power facilities in coastal areas, wind power generation, photovoltaic power generation and supporting energy storage equipment face severe corrosion risks. The coupled action of chloride ions, temperature and humidity in the salt spray environment will accelerate the surface oxidation of equipment, insulation aging and circuit short - circuit, resulting in a decrease in power generation efficiency and even fault shutdown. Traditional monitoring schemes are mostly based on fixed - cycle inspections or early warnings of single environmental parameters (such as temperature), and it is difficult to dynamically capture the interactive effects of salt spray phase change (liquid / solid deposition) and the equipment working cycle. For example, the salt film deposited on the equipment surface by salt spray will deliquesce and crystallize repeatedly due to temperature and humidity fluctuations. When its phase change cycle does not match the equipment start - stop time, local corrosion or insulation breakdown may be triggered. In the prior art, the salt spray deposition kinetic model has not been effectively combined with the equipment operation status (such as power generation / supply time threshold), resulting in a lag in monitoring frequency and a rough maintenance strategy. In addition, the abnormal discharge behavior of energy storage equipment during the salt film accumulation stage may be exacerbated by sudden changes in environmental parameters. There is an urgent need for a safety management scheme that integrates multi - source data, dynamically optimizes the monitoring cycle and adjusts the equipment operation in real - time. Summary of the Invention

[0003] In order to overcome the drawback of the lag in salt spray dynamic corrosion monitoring, the present invention provides a safety operation monitoring system and device for power equipment.

[0004] The technical solution of the present invention is: a safety operation monitoring system for power equipment, including the following parts: Data acquisition module: used to acquire the working cycles of power generation equipment and energy storage equipment in coastal power equipment and coastal environmental data; wherein, the working cycle includes the phased power generation time and the phased power supply time, and the coastal environmental data includes temperature, humidity, and salt spray concentration; First monitoring module: used to monitor the interaction between the salt spray concentration and the power equipment during the working cycle of the power equipment, and obtain the first monitoring cycle of the power equipment based on the interaction; the interaction is the liquid - solid phase change time cycle of the salt spray on the surface of the power equipment; Second monitoring module: used to obtain the second monitoring cycle of the power equipment based on the monitoring results of the first monitoring cycle and in combination with the working cycle; Adjustment module: used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle.

[0005] Preferably, the data acquisition module is configured to acquire the working cycles of the power generation equipment and the power storage equipment in the seaside power equipment and the seaside environmental data; wherein, the working cycles include the phased power generation time and the phased power supply time, and the seaside environmental data includes temperature, humidity, and salt fog concentration, including: The phased power generation time refers to the power generation time when the power generation equipment exceeds the preset power generation time threshold; The phased power supply time refers to the power supply time when the power storage equipment exceeds the preset power supply time threshold.

[0006] Preferably, the first monitoring module is configured to monitor the interaction between the salt fog concentration and the power equipment during the working cycle of the power equipment, and based on the interaction, obtain the first monitoring cycle of the power equipment, including: obtaining the salt film deposition-evaporation equilibrium cycle through the first monitoring cycle formula, extracting the working cycle data of the power generation equipment and the power storage equipment based on the salt film deposition-evaporation equilibrium cycle, and determining the monitoring cycle of the power equipment based on the working cycle. The first monitoring cycle formula is as follows.

[0007] Wherein, is the salt film deposition-evaporation equilibrium cycle, is the reference deposition cycle, is the salt fog-humidity coupling coefficient, is the salt fog concentration, is the relative humidity, is the deliquescence relative humidity, is the temperature difference sensitivity coefficient, is the surface temperature of the equipment, is the environmental temperature.

[0008] Preferably, based on the salt film deposition-evaporation equilibrium cycle, extracting the working cycle data of the power generation equipment and the power storage equipment, and determining the monitoring cycle of the power equipment includes: Based on the salt film deposition-evaporation equilibrium cycle, three stages of the power equipment are obtained, namely the salt film accumulation stage, the salt film stable stage, and the salt film inhibition stage; If the power equipment is in the salt film accumulation stage, the power generation time data of the power generation equipment and the power supply time data of the power storage equipment are extracted. If the power generation time of the power generation equipment is greater than the duration of the salt film accumulation stage, and the power supply time of the power storage equipment is less than the duration of the salt film accumulation stage, then the absolute value of the difference between the power supply time of the power storage equipment and the duration of the salt film accumulation stage is used as the monitoring cycle duration of the power equipment. Otherwise, the current monitoring cycle is maintained; If the power equipment is in the salt film stable stage, normal monitoring is performed; If the power equipment is in the salt film inhibition stage, extract the power generation time data of the power generation equipment and the power supply time data of the energy storage equipment. If the power generation time of the power generation equipment is less than the duration of the salt film accumulation stage and the power supply time of the energy storage equipment is greater than the duration of the salt film accumulation stage, then take the absolute value of the difference between the power generation time of the power generation equipment and the duration of the salt film accumulation stage as the monitoring cycle duration of the power equipment; otherwise, maintain the current monitoring cycle.

[0009] Preferably, the interaction is the liquid-solid phase change time period of the salt spray on the surface of the power equipment, including: The liquid-solid phase change time period refers to the time duration of the deliquescence phase change and crystallization phase change processes of the salt spray on the equipment surface under the combined action of the proportional relationship between the environmental humidity and the deliquescence relative humidity and the difference between the surface temperature of the equipment and the environmental temperature.

[0010] Preferably, the second monitoring module: is used to obtain the second monitoring cycle of the power equipment based on the monitoring results of the first monitoring cycle and in combination with the working cycle, including: Based on the monitoring cycle obtained from the first monitoring formula, obtain the monitoring frequency adjustment cycle through the second cycle formula. The second cycle formula is as follows:

[0011] Wherein, is the monitoring frequency adjustment cycle, is the first monitoring cycle, is the baseline adjustment coefficient, is the abnormal voltage, is the voltage fluctuation threshold, is the influence coefficient of humidity on conductivity, is the sensitivity coefficient of temperature difference to crack exposure, is the temperature difference.

[0012] Preferably, the adjustment module: is used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle, including: If the first monitoring cycle is in the salt film accumulation stage and exceeds the preset salt film threshold, trigger a high corrosion warning and extract the stage power generation time data of the power generation equipment and the stage power supply time data of the energy storage equipment.

[0013] Preferably, the extraction of the stage power generation time data of the power generation equipment and the stage power supply time data of the energy storage equipment includes: If the stage power generation time of the power generation equipment is greater than the first monitoring cycle and the stage power supply time of the energy storage equipment is less than the first monitoring cycle, generate a command to shorten the power generation time, and set the absolute value of the difference between the power supply time of the energy storage equipment and the first monitoring cycle as the monitoring cycle duration; If the abnormal voltage exceeds the preset voltage threshold or the temperature difference exceeds the preset temperature threshold in the second monitoring period, a danger warning is triggered, and an insulation protection instruction is sent to the device controller.

[0014] Preferably, the sending of the insulation protection instruction to the device controller includes: Sending a dynamic power generation time adjustment instruction to the power generation device through a remote control interface, and setting the power generation duration to the salt film deposition-evaporation balance period minus the power generation time deviation; At the same time, sending a dynamic power supply time adjustment instruction to the power storage device, and extending the power supply duration to the salt film deposition-evaporation balance period plus the power supply time compensation.

[0015] Preferably, a safety operation monitoring device for power equipment includes: A memory, a processor, and a computer program stored in the memory and executable on the processor.

[0016] Beneficial effects: By dynamically associating the salt spray phase change cycle with the device operation state, the present invention significantly improves the safety and operation efficiency of coastal power equipment. First, based on the dynamic balance model of salt spray deposition and evaporation, the matching relationship between the salt film formation cycle and the device working duration is analyzed in real time, avoiding the superposition effect of salt film accumulation and continuous device operation, thereby effectively delaying the device corrosion process. Second, by combining environmental temperature and humidity, salt spray concentration, and device working condition data, the monitoring frequency is dynamically adjusted to accurately capture the insulation performance mutation caused by salt film deliquescence or crystallization, greatly shortening the abnormal state warning delay. At the same time, by optimizing the power generation and power storage time ratio through closed-loop control, the power generation duration is actively reduced and the power storage power supply cycle is extended during the high salt spray risk stage, reducing the probability of the device being exposed to the corrosion environment and extending the overall service life. In addition, a multi-parameter collaborative warning mechanism is adopted to comprehensively judge risks based on multi-dimensional thresholds such as salt film thickness, voltage fluctuation, and temperature gradient, reducing the possibility of misjudgment of a single parameter and enhancing the system reliability. Finally, the dynamic coordination of environmental risk perception, device operation strategy, and monitoring response is realized, ensuring the stable and efficient output of the power system while reducing the maintenance cost. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the safety operation monitoring system for power equipment of the present invention; Figure 2 It is a schematic flow diagram of the monitoring period of the present invention; Figure 3 It is a schematic diagram of the computer device provided by the present invention. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: A safety operation monitoring system for power equipment, as Figure 1 shown, includes the following parts: Data acquisition module: used to acquire the working cycles of the power generation equipment and the power storage equipment in the seaside power equipment and the seaside environmental data; wherein, the working cycles include the phased power generation time and the phased power supply time, and the seaside environmental data includes temperature, humidity, and salt fog concentration; First monitoring module: used to monitor the interaction between the salt fog concentration and the power equipment during the working cycle of the power equipment, and based on the interaction, obtain the first monitoring cycle of the power equipment; the interaction is the liquid-solid phase change time cycle of the salt fog on the surface of the power equipment; Second monitoring module: used to obtain the second monitoring cycle of the power equipment based on the monitoring results of the first monitoring cycle and in combination with the working cycle; Adjustment module: used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle.

[0020] Data acquisition module: used to acquire the working cycles of the power generation equipment and the power storage equipment in the seaside power equipment and the seaside environmental data; wherein, the working cycles include the phased power generation time and the phased power supply time, and the seaside environmental data includes temperature, humidity, and salt fog concentration, including: The phased power generation time refers to the power generation time when the power generation equipment exceeds the preset power generation time threshold; The phased power supply time refers to the power supply time when the power storage equipment exceeds the preset power supply time threshold.

[0021] Further explanation is that the phased power generation / supply time is defined as the period when the power generation equipment / power storage equipment continuously operates for more than the preset power generation / power supply time threshold (such as the power generation time ≥ 2 hours, the power supply time ≥ 1.5 hours), and its logic is: The purpose of threshold screening: to filter short-term fluctuations and focus on the cumulative effect of continuous load on salt fog deposition (long-term operation exacerbates temperature rise and salt film phase change).

[0022] Implementation method: Record the running time through the equipment controller, and trigger data collection (such as the temperature of the power generation equipment, the output current of the power storage equipment) when the cumulative value > the preset power generation / power supply time threshold.

[0023] Effect: Avoid frequent monitoring interference, accurately identify high corrosion risk periods, dynamically adjust the working cycle in combination with the first monitoring cycle formula, and reduce the equipment degradation rate.

[0024] The first monitoring module: It is used to monitor the interaction between the salt fog concentration and the power equipment during the working cycle of the power equipment, and based on the interaction, obtain the first monitoring cycle of the power equipment, including: obtaining the salt film deposition-evaporation equilibrium cycle through the first monitoring cycle formula, extracting the working cycle data of the power generation equipment and the energy storage equipment based on the salt film deposition-evaporation equilibrium cycle, and determining the monitoring cycle of the power equipment based on the working cycle. The first monitoring cycle formula is as follows.

[0025] Wherein, is the salt film deposition-evaporation equilibrium cycle, is the reference deposition cycle, is the salt fog-humidity coupling coefficient, is the salt fog concentration, is the relative humidity, is the deliquescence relative humidity, is the temperature difference sensitivity coefficient, is the equipment surface temperature, is the ambient temperature.

[0026] Furthermore, it is explained that the first monitoring cycle formula is used to dynamically calculate the equilibrium cycle of salt film deposition and evaporation ( ), reflecting the time threshold for the formation of a stable salt film by salt fog on the equipment surface.

[0027] Meaning: The numerator term ( ) represents the inhibitory effect of the salt fog concentration ( ) and the relative humidity ( ) on salt film deposition: When is close to the deliquescence humidity ( ), the salt film is prone to deliquescence and the deposition slows down (the exponent approaches 0, lengthens); the higher the salt fog concentration ( increases), the faster the deposition rate ( shortens); the denominator term ( ) reflects the regulatory effect of the temperature difference between the equipment surface temperature and the environment: the greater the temperature difference ( ), the faster the evaporation (the denominator value increases), and the more difficult it is for the salt film to be stable ( shortens).

[0028] Effect: Dynamically adjust the monitoring cycle by quantifying the competitive relationship between salt fog deposition and evaporation ; When During shortening (such as high salt fog, low humidity, overheating of equipment), the monitoring frequency needs to be increased to avoid insulation failure caused by too thick salt film; conversely, the monitoring cost can be reduced.

[0029] Example: Assume = 24h, = 0.05, = 50 μg / m³, = 70%, = 75%, then: ( ) = 0.0667, the exponential term is -0.05 × 50 × 0.0667 ≈ -0.1667, e -0.1667 ≈ 0.846; if = 0.1, = 5°C, then the denominator term e (0.1×5) = 1.648; finally = 24 × 0.846 / 1.648 ≈ 12.3h, the monitoring frequency doubles to adapt to the risks of high salt fog and equipment temperature rise.

[0030] Based on the salt film deposition-evaporation equilibrium cycle, extract the working cycle data of the power generation equipment and the power storage equipment, and based on the working cycle, determine the monitoring cycle of the power equipment, including: Based on the salt film deposition-evaporation equilibrium cycle, obtain three stages of the power equipment, namely the salt film accumulation stage, the salt film stable stage, and the salt film inhibition stage; If the power equipment is in the salt film accumulation stage, extract the power generation time data of the power generation equipment and the power supply time data of the power storage equipment. If the power generation time of the power generation equipment is greater than the duration of the salt film accumulation stage, and the power supply time of the power storage equipment is less than the duration of the salt film accumulation stage, then take the absolute value of the difference between the power supply time of the power storage equipment and the duration of the salt film accumulation stage as the monitoring cycle duration of the power equipment, otherwise, maintain the current monitoring cycle; If the power equipment is in the salt film stable stage, monitor normally; If the power equipment is in the salt film inhibition stage, extract the power generation time data of the power generation equipment and the power supply time data of the power storage equipment. If the power generation time of the power generation equipment is less than the duration of the salt film accumulation stage, and the power supply time of the power storage equipment is greater than the duration of the salt film accumulation stage, then take the absolute value of the difference between the power generation time of the power generation equipment and the duration of the salt film accumulation stage as the monitoring cycle duration of the power equipment, otherwise, maintain the current monitoring cycle.

[0031] Further explanation is that, as Figure 2 shown, through multi-stage state discrimination and power parameter coupling analysis, the adaptive adjustment of the monitoring cycle is realized.

[0032] The core logic is as follows: Salt film accumulation stage: The salt film forms rapidly, and enhanced monitoring is required. If the power generation time (power supply capacity) covers the salt film accumulation period but the power storage time (endurance capacity) is insufficient, it indicates that the power storage time may be exhausted prematurely due to salt film deposition. In this case, the absolute value of the time difference between the two should be used as the monitoring period (shorten the interval) to ensure timely intervention. Conversely, maintain the original period to avoid waste of resources. Salt film stabilization stage: The salt film is in equilibrium with the environment, and regular monitoring is sufficient. Salt film inhibition stage: The salt film is inhibited (e.g., by rising humidity or decreasing temperature difference), but precautions must be taken to prevent power supply interruption due to insufficient power generation. If the power generation time is shorter than the salt film accumulation period and the power storage time is long, it indicates that power generation may not be able to cover the risk period. In this case, the monitoring period should be shortened to the power generation time difference to prioritize power supply continuity.

[0033] Technical effect: By dynamically matching the salt film state with the power equipment capabilities, monitoring is intensified during the risk period (such as insufficient power storage or limited power generation), and redundant operations are reduced during the low-risk period, achieving the optimal balance between safety and economy.

[0034] Example: Accumulation stage: The salt film accumulation lasts for 10 hours, the power generation time is 12 hours (covering the risk period), and the power storage time is 8 hours (insufficient). The monitoring period is set to |8 - 10| = 2 hours, and the power storage decay is monitored frequently. Inhibition stage: The salt film accumulation period is still 10 hours, the power generation time is 8 hours (insufficient), and the power storage time is 12 hours (redundant). The monitoring period is set to 8 hours (power generation time difference) to ensure power supply connection in case of insufficient power generation.

[0035] The interaction is the time period of the liquid-solid phase change of salt mist on the surface of power equipment, including: The time period of the liquid-solid phase change refers to the time duration of the deliquescence phase change and crystallization phase change processes of salt mist on the equipment surface under the combined action of the proportional relationship between the environmental humidity and the deliquescence relative humidity and the temperature difference between the equipment surface temperature and the environmental temperature.

[0036] Further explanation: The time period of the liquid (deliquescence) - solid (crystallization) phase change of salt mist on the equipment surface refers to the time length required for salt mist to complete one deliquescence (liquefaction) or crystallization (solidification) process under specific temperature and humidity conditions. This period is dynamically regulated by the following two core parameters: Humidity ratio ( ): (relative humidity) and (deliquescence relative humidity, e.g., for NaCl = 75%RH) ratio.

[0037] Effect: When > 1 (e.g., = 90%, = 75%), the salt spray continuously absorbs moisture and liquefies (deliquesces); when < 1 (such as = 60%), the salt film loses water and solidifies (crystallizes).

[0038] Temperature difference ( = - ): is the surface temperature of the device, is the ambient temperature.

[0039] Function: If > 0 (the surface temperature of the device is higher), it accelerates the evaporation of the liquid film and shortens the crystallization time; if < 0 (the surface temperature of the device is lower), it inhibits evaporation and prolongs the deliquescence time.

[0040] The second monitoring module: used to obtain the second monitoring cycle of the power equipment based on the monitoring results of the first monitoring cycle and in combination with the working cycle, including: The monitoring cycle obtained based on the first monitoring formula, and the monitoring frequency adjustment cycle is obtained through the second cycle formula. The second cycle formula is as follows,

[0041] where, is the monitoring frequency adjustment cycle, is the first monitoring cycle, is the baseline adjustment coefficient, is the abnormal voltage, is the voltage fluctuation threshold, is the influence coefficient of humidity on conductivity, is the sensitivity coefficient of temperature difference to crack exposure, is the temperature difference.

[0042] Further explanation: the meaning of the second cycle formula: Based on the first monitoring cycle ( ), it is dynamically adjusted, and the monitoring frequency is optimized through three factors: voltage anomaly, humidity approaching the deliquescence degree, and temperature difference crack risk: Voltage anomaly ( ): The higher the voltage exceeds the threshold, the larger the logarithmic term, shortens (intensifies monitoring) to prevent insulation breakdown; Humidity inhibition ( ): The lower the actual humidity ( ) is compared to the deliquescence humidity ( ), the larger the humidity term ( ), shortens to cope with the risk of accelerated salt film deposition; conversely, when the humidity is close to When the salt film dissolves, it extends; Temperature difference exposure ( ): When the temperature difference increases, the item increases, shortens, preventing the crack propagation of the salt film caused by thermal stress.

[0043] Technical effect: Through multi-parameter coupling, actively increase the monitoring frequency when the voltage is abnormal, the environment is dry or the temperature difference is too large, reducing the risk of equipment failure; extend the cycle when the humidity approaches the safety threshold or the environment is stable, saving operation and maintenance costs.

[0044] Example: Let = 10h, = 1.2, = 30V, = 20V, = 0.1, = 70%, = 75%, = 0.05, = 10℃: Voltage item: ln(1 + 30 / 20) = ln2.5 ≈ 0.916; Humidity item: 1 + e (-0.1*(70-75)) = 1 + e 0.5 ≈ 2.648; Temperature item: e (0.05*10) = e 0.5 ≈ 1.648; Denominator ≈ 0.916 × 2.648 × 1.648 ≈ 4.0; = (10 × 1.2) / 4 = 3h; Result: The monitoring cycle is shortened to 3 hours. Due to over-limit voltage, low humidity and large temperature difference, high-frequency monitoring is required.

[0045] Adjustment module: Used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle, including: If the first monitoring cycle is in the salt film accumulation stage and exceeds the preset salt film threshold, trigger a high corrosion warning, and extract the phased power generation time data of the power generation equipment and the phased power supply time data of the energy storage equipment.

[0046] Further explanation is that when the duration of the salt film accumulation stage (salt mist deposition rate > evaporation rate, determined by temperature, humidity and salt mist concentration) exceeds the preset salt film threshold, trigger a high corrosion warning.

[0047] Logic: The system automatically retrieves the power generation time of the current power generation equipment running continuously beyond the preset salt film threshold (e.g., > 3 hours) and the continuous discharge time of the energy storage equipment (e.g., > 2 hours), and calculates the difference between the two and the salt film phase change cycle. The difference value.

[0048] Implementation: By dynamically adjusting the coefficient Optimize the power generation / power supply time allocation (such as shortening the power generation period and extending the energy storage compensation), and reduce the liquid state residence time of the salt film.

[0049] Effect: Inhibit the salt spray electrolytic corrosion rate and extend the insulation life of the equipment.

[0050] Extract the phased power generation time data of the power generation equipment and the phased power supply time data of the energy storage equipment, including: If the phased power generation time of the power generation equipment is greater than the first monitoring period and the phased power supply time of the energy storage equipment is less than the first monitoring period, generate a command to shorten the power generation time, and set the absolute value of the difference between the power supply time of the energy storage equipment and the first monitoring period as the monitoring period duration; If the abnormal voltage exceeds the preset voltage threshold or the temperature difference exceeds the preset temperature threshold in the second monitoring period, trigger a danger warning and send an insulation protection command to the equipment controller.

[0051] For further explanation, power generation overlimit regulation: When the power generation time > (the first monitoring period, i.e., the salt film deposition-evaporation equilibrium period) and the power supply time < , it indicates that: during the salt film accumulation stage, salt spray continuously deposits, and the equipment surface is in a high humidity state ( close to ) or a low temperature difference ( decrease), and the salt film is mainly in a liquid state (easy to conduct electricity and corrode); Risk determination: The power generation equipment operates overtime during the stage dominated by the liquid salt film, and the power generation time needs to be shortened to ≤ to avoid the high corrosion window of continuous salt film liquefaction.

[0052] Setting of the absolute value of the difference: Take |actual power supply duration - | as the new monitoring period, and force the system to frequently monitor the salt film state when the power supply is insufficient.

[0053] Threshold response logic: In the second monitoring period If (abnormal voltage) or (temperature difference) exceeds the limit: First, the physical mechanism trigger condition is: Increase the reflection of the enhanced conductivity of the salt film ( ≥ when the liquid salt film conducts electricity), The upward trend indicates that microcracks are generated on the surface of the device due to thermal stress caused by temperature differences; Next, the protection action execution logic is as follows: directly trigger insulation instructions (such as cutting off the circuit, starting coating repair) to block the corrosion path.

[0054] Send an insulation protection instruction to the device controller, including: Send a dynamic power generation time adjustment instruction to the power generation device through the remote control interface, and set the power generation duration to the salt film deposition-evaporation equilibrium cycle minus the power generation time deviation; At the same time, send a dynamic power supply time adjustment instruction to the energy storage device, and extend the power supply duration to the salt film deposition-evaporation equilibrium cycle plus the power supply time compensation.

[0055] For further explanation, the power generation time adjustment formula limits the power generation duration within the salt film deposition-evaporation equilibrium cycle ( ), to avoid exacerbating corrosion due to overtime operation. The power generation time adjustment formula is as follows:

[0056] Wherein, is the adjusted power generation time, , is the power generation time deviation, indicating the part by which the current power generation time ( ) exceeds ; if is less than or equal to , then = 0, no adjustment is required; The power supply time adjustment formula extends the energy storage time to cover the power supply gap after the power generation time is shortened, and compensates for potential power supply fluctuations during the salt film risk period. The power supply time adjustment formula is as follows:

[0057] Wherein, is the adjusted power supply time, , is the power supply time compensation, which is linearly related to the power generation time deviation , is the compensation coefficient (usually ≥ 1, set according to the system energy efficiency requirements); if = 0, then = 0, no adjustment is required.

[0058] Embodiment 2: Based on Embodiment 1, a safety operation monitoring device for power equipment, as shown in Figure 3 includes: A memory, a processor, and a computer program stored in the memory and executable on the processor.

[0059] The above has introduced the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A safe operation monitoring system for electric power equipment, characterized in that: Includes the following parts: Data acquisition module: used to obtain the working cycle of power generation equipment and power storage equipment in seaside power equipment and seaside environmental data; wherein the working cycle includes staged power generation time and staged power supply time, and the seaside environmental data includes temperature, humidity, and salt spray concentration; The first monitoring module is used to monitor the interaction between the salt spray concentration and the power equipment during the working cycle of the power equipment, and obtain the first monitoring cycle of the power equipment based on the interaction; the interaction is the liquid and solid phase change time period of the salt spray on the surface of the power equipment; A second monitoring module: used to obtain a second monitoring cycle of the power equipment based on the monitoring result of the first monitoring cycle and in combination with the working cycle; Adjustment module: used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle.

2. A safe operation monitoring system for electric power equipment according to claim 1, characterized in that: The data acquisition module is used to obtain the working cycle of the power generation equipment and the power storage equipment in the seaside power equipment and the seaside environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the seaside environmental data includes temperature, humidity, and salt spray concentration, including: The staged power generation time refers to the power generation time of the power generation equipment exceeding the preset power generation time threshold; The phased power supply time refers to the power supply time of the power storage device exceeding a preset power supply time threshold.

3. A safe operation monitoring system for electric power equipment according to claim 1, characterized in that: The first monitoring module is used to monitor the interaction between the salt spray concentration and the power equipment during the working cycle of the power equipment, and obtain the first monitoring cycle of the power equipment based on the interaction, including: obtaining the salt film deposition-evaporation balance cycle through the first monitoring cycle formula, extracting the working cycle data of the power generation equipment and the power storage equipment based on the salt film deposition-evaporation balance cycle, and determining the monitoring cycle of the power equipment based on the working cycle. The first monitoring cycle formula is as follows: in, is the salt film deposition-evaporation equilibrium cycle, is the base deposition period, is the salt spray-humidity coupling coefficient, is the salt spray concentration, is the relative humidity, is the deliquescent relative humidity, is the temperature difference sensitivity coefficient, is the surface temperature of the equipment, is the ambient temperature.

4. A safe operation monitoring system for electric power equipment according to claim 3, characterized in that: The method of extracting working cycle data of power generation equipment and power storage equipment based on the salt film deposition-evaporation balance cycle and determining the monitoring cycle of power equipment based on the working cycle includes: Based on the salt film deposition-evaporation balance cycle, three stages of the power equipment are obtained, namely, the salt film accumulation stage, the salt film stabilization stage, and the salt film inhibition stage; If the power equipment is in the salt film accumulation stage, the power generation time data of the power generation equipment and the power supply time data of the power storage equipment are extracted. If the power generation time of the power generation equipment is greater than the duration of the salt film accumulation stage, and the power supply time of the power storage equipment is less than the duration of the salt film accumulation stage, the absolute value of the difference between the power supply time of the power storage equipment and the duration of the salt film accumulation stage is used as the monitoring cycle length of the power equipment. Otherwise, the current monitoring cycle is maintained. If the power equipment is in the salt film stabilization stage, it is monitored normally; If the power equipment is in the salt film suppression stage, the power generation time data of the power generation equipment and the power supply time data of the power storage equipment are extracted. If the power generation time of the power generation equipment is less than the duration of the salt film accumulation stage, and the power supply time of the power storage equipment is greater than the duration of the salt film accumulation stage, the absolute value of the difference between the power generation time of the power generation equipment and the duration of the salt film accumulation stage is used as the monitoring cycle length of the power equipment. Otherwise, the current monitoring cycle is maintained.

5. A safe operation monitoring system for electric power equipment according to claim 1, characterized in that: The interaction is the phase transition time period between liquid and solid of salt spray on the surface of power equipment, including: The liquid-solid phase change time period refers to the duration of the deliquescent phase change and crystallization phase change process of the salt spray on the equipment surface under the combined effect of the proportional relationship between the ambient humidity and the deliquescent relative humidity and the difference between the equipment surface temperature and the ambient temperature.

6. A safe operation monitoring system for electric power equipment according to claim 1, characterized in that: The second monitoring module is used to obtain a second monitoring cycle of the power equipment based on the monitoring result of the first monitoring cycle in combination with the working cycle, including: Based on the monitoring period obtained by the first monitoring formula, the monitoring frequency adjustment period is obtained by the second period formula. The second period formula is as follows: in, To monitor the frequency adjustment period, is the first monitoring cycle, is the baseline adjustment factor, is the abnormal voltage, is the voltage fluctuation threshold, is the influence coefficient of humidity on conductivity, is the sensitivity coefficient of temperature difference to crack exposure, is the temperature difference.

7. A safe operation monitoring system for electric power equipment according to claim 1, characterized in that: The adjustment module is used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle, including: If the first monitoring cycle is in the salt film accumulation stage and exceeds the preset salt film threshold, a high corrosion warning is triggered, and the phased power generation time data of the power generation equipment and the phased power supply time data of the power storage equipment are extracted.

8. A safe operation monitoring system for electric power equipment according to claim 7, characterized in that: The step of extracting the phased power generation time data of the power generation equipment and the phased power supply time data of the power storage equipment includes: If the staged power generation time of the power generation equipment is greater than the first monitoring period, and the staged power supply time of the power storage equipment is less than the first monitoring period, an instruction to shorten the power generation time is generated, and the absolute value of the difference between the power supply time of the power storage equipment and the first monitoring period is set as the monitoring period length; If the abnormal voltage exceeds the preset voltage threshold or the temperature difference exceeds the preset temperature threshold in the second monitoring cycle, a danger warning is triggered and an insulation protection instruction is sent to the equipment controller.

9. A safe operation monitoring system for electric power equipment according to claim 8, characterized in that: The sending of the insulation protection instruction to the equipment controller includes: Send a dynamic power generation time adjustment instruction to the power generation equipment through the remote control interface, and set the power generation time to the salt film deposition-evaporation balance period minus the power generation time deviation; At the same time, a dynamic power supply time adjustment instruction is sent to the power storage device to extend the power supply time to the salt film deposition-evaporation balance period plus the power supply time compensation amount.

10. A safe operation monitoring device for electric power equipment, used to implement a safe operation monitoring system for electric power equipment as claimed in any one of claims 1 to 9, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor.

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