A safe operation monitoring system and device for electric power equipment

Abstract

The present invention relates to the field of power system and equipment monitoring technology, and in particular to a safe operation monitoring system and device for power equipment. It comprises the following parts: a data acquisition module: 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; a 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 present invention dynamically associates the salt spray phase change with the equipment operation, avoids corrosion based on the salt film cycle and working condition matching, uses multi-parameter early warning to capture insulation mutations, optimizes the power generation and storage ratio to reduce the risk of corrosion, realizes the coordination of environmental perception, operation strategy and monitoring, ensures the stable output of the system, and reduces maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of power system and equipment monitoring, and in particular to a safe 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 combined effects of chloride ions in salt fog environments, combined with temperature and humidity, can accelerate surface oxidation, insulation aging, and circuit short circuits in equipment, leading to reduced power generation efficiency and even downtime. Traditional monitoring solutions, often based on fixed-cycle inspections or early warning based on a single environmental parameter (such as temperature), struggle to dynamically capture the interaction between salt fog phase transitions (liquid / solid deposition) and equipment operating cycles. For example, the salt film deposited on equipment surfaces undergoes repeated deliquesce and crystallization due to temperature and humidity fluctuations. Mismatches between the phase transition cycle and equipment start-up and shutdown times can lead to localized corrosion or insulation breakdown. Existing technologies have yet to effectively integrate salt fog deposition kinetics models with equipment operating conditions (such as power generation / supply time thresholds), resulting in lagging monitoring frequency and inefficient maintenance strategies. Furthermore, abnormal discharge behavior of energy storage equipment during the salt film accumulation phase can be exacerbated by sudden changes in environmental parameters. A safety management solution that integrates multi-source data, dynamically optimizes monitoring cycles, and adjusts equipment operations in real time is urgently needed. Summary of the Invention

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

[0004] The technical solution of the present invention is: a safe operation monitoring system for power equipment, comprising the following parts:

[0005] Data acquisition module: used to obtain the working cycle of the power generation equipment and power storage equipment in the coastal power equipment and the coastal environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the coastal environmental data includes temperature, humidity, and salt spray concentration;

[0006] A first monitoring module is configured to monitor the interaction between the salt spray concentration and the power equipment during a working cycle of the power equipment, and obtain a first monitoring period of the power equipment based on the interaction; the interaction is the time period for the liquid and solid phase transitions of the salt spray on the surface of the power equipment;

[0007] A second monitoring module: configured 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;

[0008] Adjustment module: used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle.

[0009] Preferably, the data acquisition module is used to acquire the working cycle of the power generation equipment and the power storage equipment in the coastal power equipment and the coastal environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the coastal environmental data includes temperature, humidity, and salt spray concentration, including:

[0010] The staged power generation time refers to the power generation time of the power generation equipment exceeding the preset power generation time threshold;

[0011] The phased power supply time refers to the power supply time of the power storage device exceeding a preset power supply time threshold.

[0012] Preferably, 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:

[0013]

[0014] in, is the salt film deposition-evaporation equilibrium period, is the baseline 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 device, is the ambient temperature.

[0015] Preferably, extracting working cycle data of power generation equipment and power storage equipment based on the salt film deposition-evaporation balance cycle, and determining a monitoring cycle of the power equipment based on the working cycle includes:

[0016] Based on the salt film deposition-evaporation balance cycle, three stages of the power equipment are obtained, namely, salt film accumulation stage, salt film stabilization stage, and salt film suppression stage;

[0017] 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 device 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 device 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 device 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.

[0018] If the power equipment is in the salt film stable stage, it is monitored normally;

[0019] 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.

[0020] Preferably, the interaction is a phase transition period between liquid and solid of salt mist on the surface of the power equipment, including:

[0021] The liquid-solid phase transition time period refers to the duration of the deliquescent phase transition and crystallization phase transition process of salt spray on the equipment surface under the combined action of the ratio between the ambient humidity and the deliquescent relative humidity and the difference between the equipment surface temperature and the ambient temperature.

[0022] Preferably, the second monitoring module is configured 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:

[0023] 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:

[0024]

[0025] in, To monitor the frequency adjustment period, For the first monitoring cycle, is the baseline adjustment factor, is 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.

[0026] Preferably, the adjustment module is configured to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle, including:

[0027] 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.

[0028] Preferably, 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:

[0029] 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;

[0030] 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.

[0031] Preferably, the sending of the insulation protection instruction to the equipment controller includes:

[0032] Send a dynamic power generation time adjustment instruction to the power generation equipment through the remote control interface, setting the power generation time to the salt film deposition-evaporation balance period minus the power generation time deviation;

[0033] 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.

[0034] Preferably, the device for monitoring safe operation of electric power equipment comprises:

[0035] A memory, a processor, and a computer program stored in the memory and executable on the processor.

[0036] Beneficial Effects: The present invention significantly improves the safety and operating efficiency of coastal power equipment by dynamically associating the salt fog phase change cycle with the equipment operating status. First, based on the dynamic equilibrium model of salt fog deposition and evaporation, the matching relationship between the salt film formation cycle and the equipment operating time is analyzed in real time to avoid the superposition effect of salt film accumulation and continuous equipment operation, thereby effectively delaying the corrosion process of the equipment. Secondly, combined with the ambient temperature and humidity, salt fog concentration and equipment operating condition data, the monitoring frequency is dynamically adjusted to accurately capture the sudden change in insulation performance caused by salt film deliquescence or crystallization, significantly shortening the abnormal state warning delay. At the same time, through closed-loop control, the ratio of power generation and storage time is optimized. In the high salt fog risk stage, the power generation time is actively reduced and the power storage and supply cycle is extended, reducing the probability of equipment exposure to corrosive environments and extending the overall service life. In addition, a multi-parameter collaborative early 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 system reliability. Ultimately, dynamic coordination of environmental risk perception, equipment operation strategy and monitoring response is achieved, reducing maintenance costs while ensuring stable and efficient output of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the structure of the safe operation monitoring system for power equipment according to the present invention;

[0038] Figure 2 Schematic diagram of the monitoring cycle of the present invention;

[0039] Figure 3 This is a schematic diagram of the computer device provided by the present invention. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1: A system for monitoring the safe operation of power equipment, such as Figure 1 As shown, it includes the following parts:

[0042] Data acquisition module: used to obtain the working cycle of the power generation equipment and power storage equipment in the coastal power equipment and the coastal environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the coastal environmental data includes temperature, humidity, and salt spray concentration;

[0043] A first monitoring module is configured to monitor the interaction between the salt spray concentration and the power equipment during a working cycle of the power equipment, and obtain a first monitoring period of the power equipment based on the interaction; the interaction is the time period for the liquid and solid phase transitions of the salt spray on the surface of the power equipment;

[0044] A second monitoring module: configured 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;

[0045] Adjustment module: used to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle.

[0046] Data acquisition module: used to obtain the working cycle of the power generation equipment and power storage equipment in the coastal power equipment and the coastal environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the coastal environmental data includes temperature, humidity, and salt spray concentration, including:

[0047] The staged power generation time refers to the power generation time of the power generation equipment exceeding the preset power generation time threshold;

[0048] The phased power supply time refers to the power supply time of the power storage device exceeding a preset power supply time threshold.

[0049] To further explain, the phased power generation / power supply time is defined as the period when the power generation equipment / power storage equipment continuously operates for more than the preset power generation time / power supply time threshold (for example, power generation time ≥ 2 hours, power supply time ≥ 1.5 hours). The logic is:

[0050] The purpose of threshold screening is to filter out short-term fluctuations and focus on the cumulative effect of continuous load on salt spray deposition (long-term operation exacerbates temperature rise and salt film phase change).

[0051] Implementation method: Record the operating time through the equipment controller, and trigger data collection (such as power generation equipment temperature and storage equipment output current) when the accumulated value is greater than the preset power generation / power supply time threshold.

[0052] Effect: Avoid frequent monitoring interference, accurately identify high corrosion risk periods, dynamically adjust the working cycle based on the first monitoring cycle formula, and reduce the equipment degradation rate.

[0053] 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:

[0054]

[0055] in, is the salt film deposition-evaporation equilibrium period, is the baseline 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 device, is the ambient temperature.

[0056] Further explanation is that the first monitoring cycle formula is used to dynamically calculate the equilibrium period of salt film deposition and evaporation ( ), which reflects the time threshold for salt mist to form a stable salt film on the surface of the equipment.

[0057] Meaning: Numerator ( ) represents the salt spray concentration ( ) and relative humidity ( ) inhibits salt film deposition: when Close to deliquescent humidity ( ), the salt film is easy to deliquesce and the deposition slows down (the index approaches 0, Extended); the higher the salt spray concentration ( increases), the deposition rate increases ( shortened); the denominator ( ) reflects the regulating effect of the temperature difference between the equipment surface temperature and the ambient temperature: Temperature difference ( ) is larger, the evaporation is accelerated (the denominator value increases), and the salt film is more difficult to stabilize ( shorten).

[0058] Effect: Dynamically adjust the monitoring cycle by quantifying the competitive relationship between salt spray deposition and evaporation ;when When the temperature is shortened (such as high salt fog, low humidity, equipment overheating), the monitoring frequency needs to be increased to avoid insulation failure caused by excessive salt film; otherwise, the monitoring cost can be reduced.

[0059] Example: Assume =24h, =0.05, =50μg / 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℃, then the denominator e (0.1×5) =1.648; final =24×0.846 / 1.648≈12.3h, the monitoring frequency is doubled to adapt to the risks of high salt spray and equipment temperature rise.

[0060] Based on the salt film deposition-evaporation balance 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 based on the working cycle, including:

[0061] Based on the salt film deposition-evaporation balance cycle, three stages of the power equipment are obtained, namely, salt film accumulation stage, salt film stabilization stage, and salt film suppression stage;

[0062] 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 device 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 device 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 device 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.

[0063] If the power equipment is in the salt film stable stage, it is monitored normally;

[0064] 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.

[0065] A further explanation is that Figure 2 As shown in the figure, adaptive adjustment of the monitoring period is achieved through multi-stage state discrimination and power parameter coupling analysis.

[0066] The core logic is as follows: During the salt film accumulation phase, salt film formation accelerates, requiring enhanced monitoring. If the power generation time (power supply capacity) covers the salt film accumulation period, but the power storage time (endurance) is insufficient, it indicates that the power storage time may be prematurely exhausted due to salt film deposition. The absolute value of the time difference between the two should be used as the monitoring cycle (shortening the interval) to ensure timely intervention. Otherwise, the original cycle should be maintained to avoid resource waste.

[0067] Salt film stabilization stage: the salt film is in equilibrium with the environment, and routine monitoring is sufficient;

[0068] Salt film suppression stage: The salt film is suppressed (e.g., humidity increases or temperature difference decreases), but it is necessary to guard against power outages caused by insufficient power generation. If the power generation time is shorter than the salt film accumulation period, but the power storage time is long, it means that power generation may not cover the risk period. It is necessary to shorten the monitoring period to the power generation time difference to prioritize power supply continuity.

[0069] Technical effect: By dynamically matching the salt membrane status with the power equipment capacity, intensified monitoring is performed during risk periods (such as insufficient power storage or limited power generation), and redundant operations are reduced during low-risk periods, achieving an optimal balance between safety and economy.

[0070] Example: Accumulation phase: Salt film accumulation lasts for 10 hours, power generation time is 12 hours (covering the risk period), and power storage time is 8 hours (inadequate); the monitoring period is set to |8-10|=2 hours, and power storage attenuation is monitored at high frequency;

[0071] Inhibition stage: The salt film accumulation period remains at 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 when power generation is insufficient.

[0072] The interaction is the time period of the liquid and solid phase transition of salt spray on the surface of power equipment, including:

[0073] The liquid-solid phase transition time period refers to the duration of the deliquescent phase transition and crystallization phase transition process of salt spray on the equipment surface under the combined action of the ratio between the ambient humidity and the deliquescent relative humidity and the difference between the equipment surface temperature and the ambient temperature.

[0074] To further explain, the phase transition period of salt spray from liquid (deliquesce) to solid (crystallization) on the equipment surface refers to the length of time required for salt spray to complete a deliquesce (liquefaction) or crystallize (solidification) process under specific temperature and humidity conditions. This period is dynamically controlled by the following two core parameters:

[0075] Humidity ratio ( ): (Relative humidity) and (Deliquescent relative humidity, such as NaCl =75%RH).

[0076] Function: When >1 hour (e.g. =90%, =75%), salt spray continues to absorb water and liquefy (deliquesce); when <1 hour (e.g. =60%), the salt film loses water and solidifies (crystallizes).

[0077] Temperature difference ( = - ): is the surface temperature of the device, is the ambient temperature.

[0078] Effect: If >0 (the surface temperature of the equipment is higher), accelerate the evaporation of the liquid film and shorten the crystallization time; if <0 (the surface temperature of the equipment is lower), inhibiting evaporation and extending the deliquescence time.

[0079] The second monitoring module is configured 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, including:

[0080] 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:

[0081]

[0082] in, To monitor the frequency adjustment period, For the first monitoring cycle, is the baseline adjustment coefficient, is 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.

[0083] A further explanation is that the second cycle formula means: Based on the first monitoring cycle ( ) Dynamic adjustment, optimizing monitoring frequency based on three factors: voltage anomaly, humidity approaching deliquescent level, and temperature difference crack risk:

[0084] Abnormal voltage ( ): When the voltage exceeds the threshold, the logarithmic term increases. Shorten (encrypted monitoring) to prevent insulation breakdown;

[0085] Humidity suppression ( ): Actual humidity ( ) is lower than the deliquescent humidity ( ), humidity term ( ) increases, shortened to cope with the risk of accelerated salt film deposition; on the contrary, the humidity is close to When the salt film dissolves, extend;

[0086] Temperature difference exposure ( ): When the temperature difference increases, The item increases, Shorten to prevent thermal stress from causing salt film cracks to spread.

[0087] Technical Effect: Through multi-parameter coupling, the monitoring frequency is proactively increased when voltage is abnormal, the environment is dry, or the temperature difference is large, reducing the risk of equipment failure. When humidity approaches the safety threshold or the environment is stable, the cycle is extended, saving operation and maintenance costs.

[0088] Example: Suppose =10h, =1.2, =30V, =20V, =0.1, =70%, =75%, =0.05, =10℃:

[0089] Voltage term: ln(1+30 / 20)=ln2.5≈0.916;

[0090] Humidity term: 1+e (-0.1*(70-75)) =1+e 0.5 ≈2.648;

[0091] Temperature term: e (0.05*10) =e 0.5 ≈1.648;

[0092] Denominator ≈ 0.916 × 2.648 × 1.648 ≈ 4.0;

[0093] =(10×1.2) / 4=3h; Result: The monitoring period is shortened to 3 hours. Due to voltage exceeding the limit, low humidity and large temperature difference, high-frequency monitoring is required.

[0094] An adjustment module, configured to adjust the working cycle of the power equipment based on the first monitoring cycle and the second monitoring cycle, comprising:

[0095] 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.

[0096] A further explanation is that when the salt film accumulation stage (salt mist deposition rate > evaporation rate, determined by temperature, humidity and salt mist concentration) lasts longer than the preset salt film threshold, a high corrosion warning is triggered.

[0097] Logic: The system automatically retrieves the power generation time (e.g. > 3 hours) of the current power generation equipment that continuously exceeds the preset salt film threshold and the continuous discharge time of the power storage equipment (e.g. > 2 hours), and calculates the two and the salt film phase change period. The difference.

[0098] Implementation: By dynamically adjusting the coefficient Optimize the distribution of power generation / supply time (such as shortening the power generation period and extending the power storage compensation) and reduce the liquid residence time of the salt membrane.

[0099] Effect: Inhibit salt spray electrolytic corrosion rate and extend equipment insulation life.

[0100] Extract the phased power generation time data of the power generation equipment and the phased power supply time data of the power storage equipment, including:

[0101] 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;

[0102] 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.

[0103] A further explanation is that power generation over-limit regulation: when power generation time> (The first monitoring cycle, i.e. the salt film deposition-evaporation balance cycle) and the power supply time < When the salt film accumulates, it indicates that the salt mist continues to deposit and the equipment surface is in high humidity ( near ) or low temperature difference ( Reduced), the salt film is mainly in liquid state (easy to conduct corrosion);

[0104] Risk assessment: The power generation equipment operates overtime in the liquid salt membrane dominant stage, and the power generation time needs to be shortened to ≤ , avoiding the high corrosion window where the salt film continues to liquefy.

[0105] Setting the absolute value of the difference: Set |actual power supply time− |As a new monitoring cycle, the system is forced to monitor the salt film status at a high frequency when the power supply is insufficient.

[0106] Threshold response logic: In the second monitoring cycle In, if (abnormal voltage) or (Temperature difference) exceeds limit:

[0107] First, the physical mechanism triggering conditions are: The increase reflects the enhanced conductivity of the salt film ( ≥ When the liquid salt film is conductive), The rise indicates that micro cracks are generated on the surface of the equipment due to temperature difference stress;

[0108] The protection action execution logic is then: directly triggering the insulation instruction (such as cutting off the circuit, starting coating repair), blocking the corrosion path.

[0109] Send insulation protection instructions to the equipment controller, including:

[0110] Send a dynamic power generation time adjustment instruction to the power generation equipment through the remote control interface, setting the power generation time to the salt film deposition-evaporation balance period minus the power generation time deviation;

[0111] 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.

[0112] Further explanation is that the power generation time adjustment formula limits the power generation time to the salt film deposition-evaporation balance period ( ) to avoid excessive operation and aggravated corrosion. The power generation time adjustment formula is as follows:

[0113]

[0114] in, is the adjusted power generation time, , is the power generation time deviation, indicating the current power generation time ( ) exceeds part; if Less than or equal to ,but =0, no adjustment required;

[0115] The power supply time adjustment formula extends the power storage time, covers the power supply gap after the power generation time is shortened, and compensates for the potential power supply fluctuations during the salt film risk period. The power supply time adjustment formula is as follows:

[0116]

[0117] in, is the adjusted power supply time, , The power supply time compensation amount, which is the deviation from the power generation time Linear correlation, is the compensation factor (usually ≥1, set according to the system energy efficiency requirements); if =0, then =0, no adjustment required.

[0118] Example 2: Based on Example 1, a device for monitoring safe operation of electric power equipment, such as Figure 3 Shown, including:

[0119] A memory, a processor, and a computer program stored in the memory and executable on the processor.

[0120] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A safe operation monitoring system for electric power equipment, characterized in that: Includes the following sections: Data acquisition module: used to obtain the working cycle of the power generation equipment and power storage equipment in the coastal power equipment and the coastal environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the coastal 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 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 period, is the baseline 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 device, is the ambient temperature; the interaction is the time period of the liquid and solid phase transition of the salt spray on the surface of the power equipment; The second monitoring module is configured to obtain a second monitoring cycle of the power equipment based on the monitoring result of the first monitoring cycle and the working cycle; the second monitoring module is configured to obtain a second monitoring cycle of the power equipment based on the monitoring result of the first monitoring cycle and the working cycle, including: Based on the monitoring period obtained by the first monitoring period formula, the monitoring frequency adjustment period is obtained by the second monitoring period formula. The second monitoring period formula is as follows: in, To monitor the frequency adjustment period, For the first monitoring cycle, is the baseline adjustment factor, is 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; 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 coastal power equipment and the coastal environmental data; wherein the working cycle includes the staged power generation time and the staged power supply time, and the coastal 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 extracting 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, includes: Based on the salt film deposition-evaporation balance cycle, three stages of the power equipment are obtained, namely, salt film accumulation stage, salt film stabilization stage, and salt film suppression 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 device 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 device 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 device 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 stable 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.

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

5. A safe operation monitoring system for electric power equipment according to claim 1, characterized in that: The adjustment module is configured 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.

6. A safe operation monitoring system for electric power equipment according to claim 5, 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.

7. A safe operation monitoring system for electric power equipment according to claim 6, 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, setting 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.

8. A device for monitoring safe operation of electric power equipment, used to implement a system for monitoring safe operation of electric power equipment according to any one of claims 1 to 7, 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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