Photovoltaic panel multistage interlocking control method, device and equipment in typhoon mode and medium

Abstract

The invention relates to the technical field of photovoltaic power generation system safety control, and discloses a photovoltaic panel multistage interlocking control method, device and equipment in a typhoon mode and a medium, and the method comprises the steps: obtaining first wind speed data of an environment where a photovoltaic system is located; judging whether the photovoltaic system meets a preset protection triggering condition or not based on the first wind speed data; if the photovoltaic system meets the preset protection triggering condition, a primary protection mechanism is triggered, and the primary protection mechanism is used for controlling the pitch angle of the photovoltaic support to return to zero at a preset speed; when it is monitored that the first-stage protection mechanism is completed or reaches a first duration, a second-stage protection mechanism is triggered, and the second-stage protection mechanism is used for starting a support locking device to fix the position of a photovoltaic module in the photovoltaic system; when it is monitored that the second-level protection mechanism is completed or reaches a second duration, a third-level protection mechanism is triggered, the third-level protection mechanism is used for cutting off electrical connection between the photovoltaic system and the power grid and / or the energy storage equipment, and effective protection of the photovoltaic power generation system is achieved.

Description

Technical Field

[0001] This invention relates to the field of safety control technology for photovoltaic power generation systems, specifically to a method, device, equipment, and medium for multi-level interlocking control of photovoltaic panels under typhoon conditions. Background Technology

[0002] With the widespread application of photovoltaic power generation technology, the safety of photovoltaic systems under extreme weather conditions such as typhoons and strong winds has become increasingly prominent. Among related technologies, photovoltaic support protection methods mostly adopt single protection measures, such as emergency protection through mechanical locking or electrical disconnection alone. However, such methods have the following significant drawbacks: high risk of single-point failure, the protection mechanism often relies on a single action, and once this link fails, the system will completely lose its protection capability, causing the photovoltaic modules to undergo structural deformation or overturning due to strong wind loads. Summary of the Invention

[0003] This invention provides a method, device, equipment, and medium for multi-level interlocking control of photovoltaic panels under typhoon conditions, in order to solve the problem that the protection of photovoltaic supports by a single protection measure in related technologies has a high risk of failure and cannot effectively guarantee the safety of photovoltaic supports.

[0004] In a first aspect, the present invention provides a multi-level interlocking control method for photovoltaic panels under typhoon mode. The method includes: acquiring first wind speed data of the environment in which the photovoltaic system is located; determining whether the photovoltaic system meets preset protection trigger conditions based on the first wind speed data; if the photovoltaic system meets the preset protection trigger conditions, triggering a first-level protection mechanism, the first-level protection mechanism being used to control the pitch angle of the photovoltaic support to return to zero at a preset rate; when the first-level protection mechanism is detected to be completed or reach a first duration, triggering a second-level protection mechanism, the second-level protection mechanism being used to activate the support locking device to fix the position of the photovoltaic modules in the photovoltaic system; when the second-level protection mechanism is detected to be completed or reach a second duration, triggering a third-level protection mechanism, the third-level protection mechanism being used to disconnect the electrical connection between the photovoltaic system and the power grid and / or energy storage equipment.

[0005] The multi-level interlocking control method for photovoltaic panels under typhoon mode provided by this invention activates the first-level protection mechanism when the wind speed meets the preset protection trigger conditions. This mechanism reduces the pitch angle of the photovoltaic support to zero at a preset rate, thereby reducing the vertical angle between the photovoltaic panel and the wind direction based on aerodynamic principles. This reduces the wind load by 30%-50%, fundamentally mitigating the direct impact of strong winds on the modules. After the angle adjustment is completed or reaches the first duration, the second-level protection mechanism activates the support locking device. This device firmly fixes the adjusted position of the photovoltaic modules, preventing angle rebound, support vibration, or slight displacement under continuous strong winds. This ensures that the wind load reduction effect of the first-level protection is truly realized, preventing a secondary increase in wind load due to module swaying. Finally, the third-level protection mechanism disconnects the electrical connection between the photovoltaic system and the power grid and energy storage equipment, meeting the protection requirements against islanding effects and avoiding power grid failures or surge current impacts caused by equipment damage, thus reducing the risk of electric shock and equipment burnout.

[0006] In one optional implementation, the step of determining whether the photovoltaic system meets the preset protection trigger condition based on the first wind speed data includes: if the first wind speed data is greater than the preset wind speed threshold, starting a timing operation; when the target duration is reached, acquiring multiple second wind speed data within the target duration, wherein the acquisition time of each second wind speed data is later than the acquisition time of the first wind speed data; if all the multiple second wind speed data are greater than or equal to the preset wind speed threshold, determining that the photovoltaic system meets the preset protection trigger condition; if there is a second wind speed data that is less than the preset wind speed threshold, determining that the photovoltaic system does not meet the preset protection trigger condition.

[0007] In one optional implementation, the step of determining whether the photovoltaic system meets the preset protection triggering condition based on the first wind speed data includes: calculating the cumulative energy value of the first wind speed data using a sliding window algorithm; if the cumulative energy value of the wind speed is greater than or equal to a preset energy threshold, determining that the photovoltaic system meets the preset protection triggering condition; if the cumulative energy value of the wind speed is less than the preset energy threshold, determining that the photovoltaic system does not meet the preset protection triggering condition.

[0008] In one optional implementation, if the photovoltaic system meets the preset protection triggering conditions, the step of triggering the first-level protection mechanism includes: using a closed-loop PID controller to control the pitch angle of the photovoltaic support to return to zero at a preset rate.

[0009] In one optional implementation, the step of triggering the secondary protection mechanism when the primary protection mechanism is detected to be completed or the first duration is reached includes: when the pitch angle of the photovoltaic bracket is detected to be zero or the second duration is reached, sending a start signal to the bracket locking device so that the bracket locking device can fix the photovoltaic modules in the photovoltaic system.

[0010] In one optional implementation, the step of triggering the third-level protection mechanism when the second-level protection mechanism is detected to be completed or the second duration is reached includes: when the bracket locking device is detected to have completed fixing the photovoltaic modules in the photovoltaic system or the second duration is reached, acquiring multiple third wind speed data of the environment where the photovoltaic system is located; substituting the multiple third wind speed data into a preset relational expression to solve for the cumulative wind load of the photovoltaic system; and triggering the third-level protection mechanism when the cumulative wind load is greater than a preset wind load threshold.

[0011] Secondly, the present invention provides a multi-level interlocking control device for photovoltaic panels under typhoon mode. The device includes: an acquisition module for acquiring first wind speed data of the environment in which the photovoltaic system is located; a judgment module for judging whether the photovoltaic system meets preset protection trigger conditions based on the first wind speed data; a first trigger module for triggering a first-level protection mechanism if the photovoltaic system meets the preset protection trigger conditions, the first-level protection mechanism being used to control the pitch angle of the photovoltaic support to return to zero at a preset rate; a second trigger module for triggering a second-level protection mechanism when the first-level protection mechanism is detected to be completed or a first duration is reached, the second-level protection mechanism being used to activate the support locking device to fix the position of the photovoltaic modules in the photovoltaic system; and a third trigger module for triggering a third-level protection mechanism when the second-level protection mechanism is detected to be completed or a second duration is reached, the third-level protection mechanism being used to disconnect the electrical connection between the photovoltaic system and the power grid and / or energy storage equipment.

[0012] Thirdly, the present invention provides an electronic device, comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the typhoon mode photovoltaic panel multi-level interlocking control method described in the first aspect or any corresponding embodiment above.

[0013] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the typhoon mode multi-level interlocking control method for photovoltaic panels as described in the first aspect or any corresponding embodiment above.

[0014] Fifthly, the present invention provides a computer program product, including computer instructions, which are used to cause a computer to execute the typhoon mode multi-level interlocking control method for photovoltaic panels in the first aspect or any corresponding embodiment described above. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an application scenario according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the first type of multi-level interlocking control method for photovoltaic panels under typhoon mode according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the second type of multi-level interlocking control method for photovoltaic panels under typhoon mode according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the third process of the multi-level interlocking control method for photovoltaic panels under typhoon mode according to an embodiment of the present invention. Figure 5 This is a structural block diagram of a photovoltaic panel multi-level interlocking control device under typhoon mode according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It is understood that before using the technical solutions disclosed in the various embodiments of the present invention, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in the present invention and their authorization should be obtained in accordance with relevant laws and regulations through appropriate means.

[0019] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] As an optional application scenario of this invention, the specific application environment architecture or specific hardware architecture on which the execution of the photovoltaic panel multi-level interlocking control method in typhoon mode depends is described here. For example... Figure 1 As shown, Figure 1 The system is illustrated in the example, which includes a computer 101, a mobile terminal 102, and a server 103, and the terminal devices such as the computer 101 and the mobile terminal 102 are connected to the server 103 through a network 110.

[0021] Specifically, the terminal device can be a smartphone, tablet, laptop, PDA, desktop computer, game console, smart TV, smart wearable device, in-vehicle terminal, VR (Virtual Reality) device, AR (Augmented Reality) device, etc. Server 103 can be a standalone physical server, a server cluster, a distributed system, or a cloud server providing cloud services. Network 110 can be a wired or wireless network, examples of which include, but are not limited to, the Internet, corporate intranet, local area network, wide area network, mobile communication network, and combinations thereof.

[0022] In related technologies, photovoltaic support protection methods often adopt a single protection measure, such as emergency protection through mechanical locking or electrical disconnection. However, such methods have the following significant drawbacks: high risk of single-point failure, protection mechanism often relies on a single action, once this link fails, the system will completely lose its protection capability, causing the photovoltaic modules to deform or overturn due to strong wind loads.

[0023] In view of this, this application provides a multi-level interlocking control method for photovoltaic panels under typhoon mode, which can be applied to a single server to achieve multi-level interlocking control of photovoltaic panels under typhoon mode. The method provided in this application, when the wind speed is detected to meet the preset protection trigger conditions, first-level protection mechanism is activated, reducing the tilt angle of the photovoltaic support to zero at a preset rate. Based on aerodynamic principles, this reduces the vertical angle between the photovoltaic panel and the wind direction, lowering the wind load by 30%-50%, fundamentally mitigating the direct impact of strong winds on the modules. After the angle adjustment is completed or reaches the first duration, second-level protection mechanism activates the support locking device. The support locking device firmly fixes the adjusted position of the photovoltaic modules, preventing angle rebound, support vibration, or slight displacement under continuous strong winds, ensuring the effectiveness of the first-level protection in reducing wind load is truly realized, and preventing a secondary increase in wind load due to module swaying. Finally, third-level protection mechanism disconnects the photovoltaic system from the power grid and energy storage equipment, meeting the protection requirements against islanding effects, avoiding power grid failures or surge current impacts caused by equipment damage, and reducing the risk of electric shock and equipment burnout.

[0024] According to an embodiment of the present invention, a method for multi-level interlocking control of photovoltaic panels under typhoon mode is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0025] This embodiment provides a multi-level interlocking control method for photovoltaic panels under typhoon mode, which can be used in the aforementioned server. Figure 2 This is a flowchart of a multi-level interlocking control method for photovoltaic panels under typhoon mode according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps: Step S201: Obtain the first wind speed data of the environment where the photovoltaic system is located.

[0026] For example, a photovoltaic (PV) system is a power generation system that directly converts solar energy into electrical energy using the photovoltaic effect. A PV system includes PV modules (solar panels), inverters, energy storage units, PV support structures, etc. In this embodiment, the PV system may be a PV system requiring multi-level interlocking control. The first wind speed data is the real-time wind speed data of the environment where the PV system is located, and this first wind speed data can be obtained through a preset wind speed sensor.

[0027] Step S202: Determine whether the photovoltaic system meets the preset protection trigger conditions based on the first wind speed data.

[0028] For example, in this embodiment, it can be determined whether the current wind speed exceeds a preset wind speed threshold based on the first wind speed data. If it exceeds the preset wind speed threshold, it is determined that the photovoltaic system meets the preset protection triggering condition. The preset wind speed threshold refers to the minimum wind speed value that triggers strong wind conditions. Specifically, it can be implemented by real-time data collection from a meteorological station or an ultrasonic anemometer. Its range is set considering the statistical characteristics of typhoon wind speeds in different regions. The preset wind speed threshold can be determined based on historical experience, and this embodiment does not limit the specific content of the preset wind speed threshold.

[0029] Step S203: If the photovoltaic system meets the preset protection triggering conditions, the first-level protection mechanism is triggered. The first-level protection mechanism is used to control the pitch angle of the photovoltaic support to return to zero at a preset rate.

[0030] For example, zeroing the pitch angle refers to adjusting the photovoltaic support to a horizontal state, which can be achieved using an electric actuator or a hydraulic drive system. This reduces the wind load on the support by eliminating the windward area. In this embodiment, if the photovoltaic system meets the preset protection trigger conditions, the support drive mechanism is controlled to adjust the photovoltaic panels to a horizontal state. This process ensures the zeroing action is completed by real-time feedback of angle data from a tilt sensor.

[0031] Step S204: When the primary protection mechanism is detected to be completed or the first duration is reached, the secondary protection mechanism is triggered. The secondary protection mechanism is used to activate the bracket locking device to fix the position of the photovoltaic modules in the photovoltaic system. Specifically, it can be implemented using an electric push rod or a hydraulic drive system, which reduces the wind load on the bracket by eliminating the windward area.

[0032] For example, the bracket locking device refers to a mechanism used to fix the position of the photovoltaic module, which can be implemented using an electromagnetic pin or a hydraulic brake, to prevent accidental displacement of the bracket after the angle returns to zero. In the embodiment of this application, when the pitch angle of the photovoltaic bracket is monitored... It satisfies the condition that the absolute value is less than or equal to 1 degree, i.e. , Set to 1 degree and continue. , If the duration is 30 seconds or more, the first-level protection mechanism is considered complete. If the first-level protection mechanism is completed, or if it has not been completed after the first time period, the second-level protection mechanism is triggered, sending a start signal to the bracket locking device. The locking device's pin automatically engages with the bracket track slot to achieve mechanical fixation.

[0033] Step S205: When the secondary protection mechanism is detected to be completed or the second duration is reached, the tertiary protection mechanism is triggered. The tertiary protection mechanism is used to disconnect the electrical connection between the photovoltaic system and the grid and / or energy storage equipment.

[0034] For example, disconnecting the electrical connection refers to breaking the physical connection between the system and the external power grid, which can be achieved using a circuit breaker or contactor, to prevent residual current from causing safety accidents in extreme cases. In this embodiment, when the bracket locking device is detected to have completed mechanical locking, a three-level protection mechanism is triggered, sending a tripping command to the circuit breaker and verifying the electrical isolation status.

[0035] In this embodiment, the execution result of each action is verified by sensors. The next level of protection is only triggered when the completion signal of the current level is valid. For example, if the tilt angle does not return to zero within a predetermined time, subsequent actions are paused and fault diagnosis is initiated. If any level of protection action fails to reach the preset timeout threshold... Completed within the time limit. If the timeout is set to less than 5 minutes, the current protection level will be skipped and the next level of protection will be triggered. At the same time, the backup power supply or redundant locking device will be activated, and the fault code will be recorded. The fault priority order is: electrical disconnection > mechanical locking > angle zeroing.

[0036] The multi-level interlocking control method for photovoltaic panels under typhoon mode provided in this embodiment activates the first-level protection mechanism when the wind speed meets the preset protection trigger conditions. This mechanism returns the photovoltaic support pitch angle to zero at a preset rate, reducing the vertical angle between the photovoltaic panel and the wind direction based on aerodynamic principles. This reduces the wind load by 30%-50%, fundamentally mitigating the direct impact of strong winds on the modules. After the angle adjustment is completed or the first duration is reached, the second-level protection mechanism activates the support locking device. This device firmly fixes the adjusted position of the photovoltaic modules, preventing angle rebound, support vibration, or slight displacement under continuous strong winds. This ensures that the wind load reduction effect of the first-level protection is truly realized, preventing a secondary increase in wind load due to module swaying. Finally, the third-level protection mechanism disconnects the photovoltaic system from the power grid and energy storage equipment, meeting the protection requirements against islanding effects and avoiding power grid failures or surge current impacts caused by equipment damage, thus reducing the risk of electric shock and equipment burnout.

[0037] This embodiment provides a multi-level interlocking control method for photovoltaic panels under typhoon mode, which can be used in the aforementioned server. Figure 3 This is a flowchart of a multi-level interlocking control method for photovoltaic panels under typhoon mode according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps: Step S301: Obtain the first wind speed data of the environment where the photovoltaic system is located. For details, please refer to [link to relevant documentation]. Figure 1 Step S101 of the illustrated embodiment will not be described again here.

[0038] Step S302: Determine whether the photovoltaic system meets the preset protection trigger conditions based on the first wind speed data.

[0039] Specifically, step S302 includes: Step S3021: If the first wind speed data is greater than the preset wind speed threshold, start the timing operation.

[0040] For example, the timing operation can be implemented using a preset timer, and the preset wind speed threshold can be determined according to requirements; this application embodiment does not impose specific limitations. In this application embodiment, when the real-time wind speed... satisfy Then the timing operation will begin. This indicates the preset wind speed threshold, ranging from 12m / s to 15m / s.

[0041] Step S3022: When the target duration is reached, acquire multiple second wind speed data within the target duration, with the acquisition time of each second wind speed data being later than the acquisition time of the first wind speed data.

[0042] For example, target duration Minimum duration refers to the shortest time for wind speed to exceed a threshold. This can be implemented using a timer module to prevent false triggering caused by brief gusts. Target duration. The specific requirements can be determined in this embodiment of the application. The range is from minutes to 10 minutes. In this embodiment of the application, when the first wind speed data is greater than the preset wind speed threshold, wind speed data for the next 5 to 10 minutes is obtained.

[0043] Step S3023: If multiple second wind speed data are all greater than or equal to the preset wind speed threshold, it is determined that the photovoltaic system meets the preset protection trigger condition.

[0044] For example, in this embodiment of the application, if the wind speed is greater than the preset wind speed threshold for the next 5 to 10 minutes, it is determined that there is a continuous strong wind in the environment where the photovoltaic system is located, thus meeting the preset protection triggering conditions.

[0045] Step S3024: If there is a second wind speed data that is less than the preset wind speed threshold, it is determined that the photovoltaic system does not meet the preset protection trigger condition.

[0046] Step S303: If the photovoltaic system meets the preset protection triggering conditions, the first-level protection mechanism is triggered. The first-level protection mechanism is used to control the pitch angle of the photovoltaic support to return to zero at a preset rate.

[0047] Specifically, step S303 includes: Step S3031: Use a closed-loop PID controller to control the pitch angle of the photovoltaic support to return to zero at a preset rate.

[0048] For example, a closed-loop PID controller refers to a device that forms a control signal by combining proportional, integral, and derivative components. Specifically, it can be implemented using an embedded controller to calculate the deviation between the target angle and the actual angle in real time and perform dynamic compensation. In this embodiment, a closed-loop PID controller is used to dynamically adjust the angle of the photovoltaic support, where the target angle is... From a practical perspective Based on feedback from the tilt sensor, the control output is:

[0049] in, , , and To optimize the proportional, integral, and derivative coefficients, if an angular oscillation amplitude exceeding [a certain value] is detected during the zeroing process... ,and If the setting is below 2 degrees, the adjustment rate will automatically decrease. The tilt sensor is a device that measures the pitch angle of the photovoltaic support, specifically implemented using a MEMS gyroscope or photoelectric encoder, to provide angle feedback data to the controller. Angle oscillation amplitude detection is a mechanism for monitoring the amplitude of angle deviation fluctuations, specifically implemented using a sliding window variance calculation algorithm, to identify mechanical resonance or overshoot during angle adjustment.

[0050] Specifically, when the photovoltaic support needs to be adjusted to zero angle, the controller continuously receives real-time angle data measured by the tilt sensor and calculates the control input to the drive motor using a PID algorithm. This control input is converted into a motor speed command, driving the support to smoothly return to zero. If the angle deviation fluctuates periodically during the adjustment process and the amplitude exceeds the safety threshold, it is determined to be an oscillation state. At this time, the controller automatically reduces the motor drive voltage, slowing the adjustment rate down to below the natural frequency of the mechanical system to avoid structural damage caused by resonance.

[0051] Traditional solutions typically employ open-loop control or timer-driven zeroing operations, which cannot correct angle deviations in real time and are susceptible to mechanical vibration due to wind load interference. This solution, through closed-loop feedback and dynamic rate adjustment, effectively suppresses oscillations while ensuring zeroing accuracy, thus solving the wear problem of mechanical components caused by overshoot or resonance.

[0052] Real-time angle refers to the actual tilt angle of the photovoltaic support after it has been zeroed. This can be achieved using a high-precision tilt sensor to measure the angle data in real time, determining whether the support has reached a stable state before locking. The electromagnetic locking device is a mechanical locking mechanism driven by electromagnetic force. Specifically, it can be a device that generates magnetic force upon energization to drive a locking tongue into the positioning hole, used to fix the photovoltaic modules after the angle conditions are met. The fault diagnosis program refers to a pre-set abnormality handling process. Specifically, a logic controller can be used to automatically analyze the causes of angle deviations, used to troubleshoot sensor malfunctions or mechanical jamming issues.

[0053] After the photovoltaic support completes the pitch angle zeroing action, the control system continuously monitors the feedback data from the tilt sensor. If the real-time angle remains stable within 1 degree for more than 30 seconds, it indicates that the support is in a safe posture without significant oscillation. At this time, the electromagnetic locking device is triggered to perform mechanical fixing. If the angle continues to fluctuate or exceeds the allowable range within 30 seconds, it is determined that the locking condition is not met. The fault diagnosis program is automatically initiated to check the sensor signals and actuator status item by item to avoid protection failure due to equipment abnormality.

[0054] Existing mechanical locking schemes typically rely solely on a single angle threshold for determination, neglecting dynamic stability requirements. For example, some schemes lock immediately upon detecting a zero angle, but at this point, inertia or wind load fluctuations may prevent the support from becoming completely stationary, and forced locking can easily cause mechanical stress concentration. This solution introduces a continuous stabilization time condition and a fault diagnosis mechanism to ensure that the locking action is performed only after the support has fully stabilized, while also providing rapid response capabilities in abnormal situations.

[0055] Step S304: When the secondary protection mechanism is detected to be completed or the second duration is reached, the tertiary protection mechanism is triggered.

[0056] Specifically, step S304 includes: Step S3041: When the pitch angle of the photovoltaic bracket is detected to be zero or reaches the second duration, a start signal is sent to the bracket locking device so that the bracket locking device can fix the photovoltaic modules in the photovoltaic system.

[0057] For example, the second duration may include, but is not limited to, five minutes. When the tilt angle of the photovoltaic support is detected to return to zero, the completion of the secondary protection mechanism is determined.

[0058] Step S305: When the secondary protection mechanism is detected to be completed or the second duration is reached, the tertiary protection mechanism is triggered. See above for details. Figure 2 The relevant content described in step S205 of the embodiment will not be repeated here.

[0059] This embodiment provides a multi-level interlocking control method for photovoltaic panels under typhoon mode, which can be used in the aforementioned server. Figure 4 This is a flowchart of a multi-level interlocking control method for photovoltaic panels under typhoon mode according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps: Step S401: Obtain the first wind speed data of the environment where the photovoltaic system is located.

[0060] Step S402: Determine whether the photovoltaic system meets the preset protection trigger conditions based on the first wind speed data.

[0061] Specifically, step S402 includes: Step S4021: Calculate the cumulative energy value of the first wind speed data using the sliding window algorithm.

[0062] For example, the sliding window algorithm refers to dynamically calculating data within a specific time window. Specifically, it can be implemented by using a circular buffer to store historical wind speed data, thus eliminating errors caused by instantaneous fluctuations. Accumulated wind energy refers to the integral of the square of the wind speed over time, reflecting the continuous impact energy of wind load on the photovoltaic system. In this embodiment, the accumulated wind energy is calculated using the sliding window algorithm, as shown in the following formula:

[0063] in, This indicates the accumulated energy of wind speed. This is the real-time wind speed.

[0064] Step S4022: If the cumulative energy value of wind speed is greater than or equal to the preset energy threshold, determine that the photovoltaic system meets the preset protection trigger condition.

[0065] For example, when Determine that the photovoltaic system meets the preset protection trigger conditions. This indicates a preset energy threshold. The specific content of the preset energy threshold is not limited in the embodiments of this application; those skilled in the art can determine it according to their needs.

[0066] Step S4023: If the cumulative energy value of wind speed is less than the preset energy threshold, it is determined that the photovoltaic system does not meet the preset protection triggering conditions.

[0067] Step S403: If the photovoltaic system meets the preset protection triggering conditions, the first-level protection mechanism is triggered. The first-level protection mechanism is used to control the pitch angle of the photovoltaic support to return to zero at a preset rate.

[0068] Step S404: When the first-level protection mechanism is detected to be completed or the first duration is reached, the second-level protection mechanism is triggered. The second-level protection mechanism is used to activate the bracket locking device to fix the position of the photovoltaic modules in the photovoltaic system.

[0069] Step S405: When the secondary protection mechanism is detected to be completed or the second duration is reached, the tertiary protection mechanism is triggered. The tertiary protection mechanism is used to disconnect the electrical connection between the photovoltaic system and the grid and / or energy storage equipment.

[0070] Specifically, step S405 includes: Step S4051: When the bracket locking device has completed fixing the photovoltaic modules in the photovoltaic system or the second duration has been reached, multiple third wind speed data of the environment in which the photovoltaic system is located are obtained.

[0071] For example, the multiple third wind speed data can be wind speed data within the target duration after the secondary protection mechanism is completed or the second duration is reached. The specific content of the target duration is not limited in this application embodiment, as long as it is reasonable.

[0072] Step S4052: Substitute multiple third wind speed data into a preset relational expression to solve for the cumulative wind load of the photovoltaic system.

[0073] For example, in this embodiment of the application, the cumulative wind load can be calculated using the following formula:

[0074] in, Indicates the first The third wind speed data, This indicates the sampling interval for the third wind speed data.

[0075] Step S4053: When the cumulative wind load exceeds the preset wind load threshold, the three-level protection mechanism is triggered.

[0076] Exemplary, in the embodiments of this application, when This triggers a three-level protection mechanism, disconnecting the photovoltaic system from the grid and / or energy storage devices. Before disconnection, a power gradation command is sent to the grid, reducing the output power... according to Drop to zero, of which For initial power, The attenuation coefficient is, and Set as above.

[0077] Power gradient command refers to a command that controls the output power to decrease exponentially before electrical disconnection. This can be implemented through the inverter's power modulation module to avoid voltage fluctuations or equipment surges caused by sudden power changes in the power grid. Forced disconnection condition refers to a protective action executed when the cumulative wind load exceeds a preset safety threshold. This can be implemented through relays or solid-state switches to actively disconnect electrical connections to prevent equipment overload under extreme wind load conditions.

[0078] Specifically, after mechanical locking is completed, wind speed is continuously monitored. When the detected wind speed is still higher than a preset threshold, the system begins to calculate the sum of the differences between discrete wind speed samples and the threshold, for example, collecting and accumulating wind speed data every 5 seconds. If the accumulated wind load reaches a critical value, a forced disconnection mechanism is triggered. Simultaneously, before disconnecting the electrical connection, a control algorithm gradually reduces the output power according to a preset attenuation coefficient, for example, using an exponential attenuation mode to reduce the power from the initial value to zero, ensuring grid stability. During this process, the power attenuation rate can be adjusted according to the actual system capacity; for example, the attenuation coefficient can be set to be no less than... To avoid power surges.

[0079] Furthermore, the protection release mechanism is as follows: when the wind speed returns to [a certain value]... ,and Set to below and continue minutes, and Set to 15 minutes or more, execute in reverse order, first restoring electrical connections and then performing a self-test on insulation resistance. ,and Set as After that, the mechanical lock is released, and finally the control bracket is returned to the initial power generation angle; if the wind speed is detected to rise again during the release process, the recovery is immediately terminated and the interlock protection is retried.

[0080] Existing solutions typically rely solely on a single wind speed threshold or instantaneous signal to trigger electrical disconnection, neglecting the cumulative effects of wind load and the risk of sudden power surges. This solution, by introducing cumulative wind load calculation, can more accurately distinguish between brief gusts and sustained strong winds; simultaneously, through gradual power control, it maintains grid stability during protection actions, avoiding voltage surges caused by direct power outages in traditional solutions.

[0081] The method provided in this application, through a hierarchical interlocking protection mechanism and feedback verification, ensures that each protection action is executed sequentially and coordinates with each other, solving the problems of high single-point failure risk, inaccurate triggering conditions, and action conflicts in traditional solutions. It has the advantages of reducing single-point failure risk, improving action reliability, and realizing hierarchical collaborative protection.

[0082] The following specific embodiments illustrate a multi-level interlocking control method for photovoltaic panels under typhoon conditions provided in this application.

[0083] Example 1: Specifically, when the wind speed sensor detects a sustained excessive wind speed, it first controls the support drive mechanism to adjust the photovoltaic panel to a horizontal position. This process uses real-time angle data feedback from the tilt sensor to ensure the zeroing action is completed. After receiving a zeroing confirmation signal, the pin of the electromagnetic locking device automatically engages with the support track slot to achieve mechanical fixation. After mechanical locking is complete, a tripping command is sent to the circuit breaker, and the electrical isolation status is verified. The execution result of each action is verified by the sensor. The next level of protection is only allowed to be triggered when the completion signal of the previous level is valid. For example, if the tilt angle does not reach zero within the predetermined time, subsequent actions are suspended, and fault diagnosis is initiated.

[0084] In related technologies, multiple levels of protection are often executed in parallel or only a single action is performed. For example, simultaneously activating angle adjustment and mechanical locking can overload the drive mechanism, or locking directly before eliminating the windward area can cause structural deformation. This solution, however, uses a sequential triggering and feedback verification mechanism to ensure that mechanical stress is gradually released before fixing, avoiding conflicting actions. For instance, traditional methods may fail during typhoons due to excessive torque on the locking mechanism caused by out-of-sequence execution. This solution, through a zero-level-before-locking logic, ensures that the locking device only needs to withstand residual wind pressure.

[0085] During real-time monitoring, wind speed data is continuously collected and input into the processing unit. When an instantaneous wind speed reaches a preset threshold, a duration counter is activated. If the wind speed remains above the limit for a minimum duration within a continuous time window, it is determined to be a valid, continuous strong wind. Simultaneously, within the same time window, the accumulated wind energy is calculated in real-time using a sliding window algorithm. The square of the instantaneous wind speed is multiplied by the time interval and summed to obtain the total energy value. The system only confirms the activation of the trigger condition when both the duration condition and the energy accumulation condition are met. For example, intermittent wind speed peaks may occur in the early stages of a typhoon. Although the instantaneous wind speed may exceed the threshold multiple times, the protection action will not be falsely triggered because the duration is insufficient or the accumulated energy is not up to standard.

[0086] Related technologies rely solely on a single instantaneous wind speed threshold for judgment, neglecting the duration of wind speed action and the cumulative effect of energy. For example, brief gusts may falsely trigger protection due to momentary exceeding of limits, while intermittent strong winds may be missed due to insufficient duration of a single event. This method establishes a multi-dimensional criterion model by superimposing time duration and energy accumulation conditions, effectively distinguishing between real typhoon conditions and instantaneous abnormal fluctuations, thus avoiding frequent malfunctions or missed triggers in the protection system.

[0087] Furthermore, if any level of protection action fails to complete within the preset timeout threshold, the current level is skipped and the next level of protection is triggered. Simultaneously, the backup power supply or redundant locking device is activated, and a fault code is recorded. The fault priority order is: electrical disconnection > mechanical locking > angle zeroing. The preset timeout threshold refers to the maximum time limit allowed for each level of protection action to complete. This can be implemented using a programmable timer module, with an upper limit set to prevent the system from stalling due to a single-level fault. The backup power supply refers to an emergency power supply independent of the main power supply system, which can be implemented using supercapacitors or lithium battery packs to maintain the continuous operation of critical protection components during grid outages. The redundant locking device refers to an auxiliary locking unit running parallel to the main locking mechanism, which can be implemented using pneumatic or hydraulic locks. Physical isolation design provides secondary locking protection when the main lock fails. The fault code is an identifier that records abnormal events during the protection process, which can be implemented using hexadecimal encoding. A storage chip records the fault type and timestamp for subsequent diagnosis. The priority order refers to the progressive logic of multi-level protection triggering, which can be implemented using state machine logic circuits. Interrupt priority settings ensure that critical protection actions are executed first.

[0088] For example, if the angle zeroing operation fails to complete within a preset time due to motor failure, the system automatically sends a start command to the mechanical locking device and activates the backup power supply to power the locking solenoid valve. If the mechanical locking cannot be completed due to structural jamming, the electrical disconnection procedure is directly triggered and the locking mechanism fault code is recorded. During this process, the electrical disconnection protection always has the highest execution authority, ensuring that critical protection links are not affected by low-level faults. Existing solutions lack a dynamic response mechanism when a single-level protection fails, causing the system to be completely exposed to risk. This solution, through timeout jumps and redundant execution, can still maintain the overall effectiveness of interlocking protection during local faults and optimize resource allocation through priority management.

[0089] This application further proposes a protection release mechanism. When the wind speed recovers to below the trigger threshold and remains below it for a certain period of time, the recovery process is executed in reverse order. First, the electrical connection is restored and the insulation resistance is checked to meet the minimum requirement. Then, the mechanical lock is released, and finally, the support is controlled to return to the initial power generation angle. If the wind speed is detected to rise again during the release process, the recovery is immediately terminated and the interlock protection is retried.

[0090] The wind speed recovery condition refers to the situation where the wind speed required to release protection remains below the trigger threshold. This can be achieved through real-time monitoring by a wind speed sensor combined with a time-accumulation algorithm, ensuring stable weather conditions that meet safety standards. The reverse-sequence recovery process refers to the step-by-step operation sequence of restoring electrical connections, releasing mechanical locks, and resetting angles. This can be implemented through a pre-set program instruction chain in the central controller, avoiding electrical shocks or mechanical overloads due to incorrect sequence. The insulation resistance self-test checks the insulation performance of the line before restoring electrical connections. This can be done using an online megohmmeter to measure and compare the results with a pre-set threshold, preventing short-circuit faults caused by insulation failure. The dynamic interruption mechanism monitors wind speed changes in real time during the recovery process. This can be achieved by linking a wind speed warning module with the controller; when a wind speed increase is detected, the current operation is immediately interrupted and the protection program is restarted.

[0091] Specifically, when the wind speed remains below a set threshold for a preset duration, the protection release process is automatically initiated. First, an electrical connection restoration operation is performed. Before closing the circuit, the insulation resistance of the line is automatically detected, for example, by verifying insulation performance using a high-voltage tester. If the requirements are met, an electrical connection is established. Then, an unlocking command is sent to the mechanical locking device, for example, by controlling the hydraulic pin to exit the locking hole via a solenoid valve, thus restoring the support's degrees of freedom. Finally, the support drive motor is controlled to gradually adjust to the initial power generation angle along a preset trajectory, for example, by using a stepper motor in conjunction with an encoder for precise positioning. If, at any stage, a wind speed increase exceeding the safety threshold is detected, for example, a sudden change in wind speed measured by an anemometer, the current operation is immediately paused and the three-level protection mechanism is reactivated.

[0092] Traditional methods, such as directly reversing the protection sequence after a typhoon or lacking monitoring of the recovery process, are prone to equipment damage due to residual wind loads or operational conflicts. This solution, through a step-by-step verified reverse recovery logic and dynamic interruption mechanism, achieves a smooth system state transition while ensuring electrical safety and mechanical stability. Simultaneously, it establishes real-time linkage between wind speed changes and the recovery process, effectively preventing secondary failures.

[0093] Example 2: (1) The basic information of the interlocking control of a photovoltaic power station during the typhoon is as follows.

[0094] Photovoltaic system: A 20MW photovoltaic power station in a coastal area, with a single-axis tracking bracket and an initial pitch angle of 30 degrees; Typhoon parameters: sustained strong winds of 16 m / s (lasting 8 minutes), with peak gusts of 20 m / s; Preset parameters: wind speed threshold ; Minimum Duration ; Cumulative wind energy threshold ; Angular oscillation threshold ; Mechanical locking angle tolerance ; Locking in stabilization time ; Cumulative wind load threshold ; Power attenuation coefficient .

[0095] (2) The conditions for triggering strong winds are as follows.

[0096] Data sampling: wind speed sensor sampling interval ; Decision logic: ,continued The triggering condition is met; Cumulative wind energy calculation (sliding window integration): ; Substitute the data: The mean is taken as 16 m / s. ,Exceed Synchronous trigger protection.

[0097] (3) Level 1 protection: pitch angle zeroing control.

[0098] PID control: target angle Initial actual angle ; Control output: ; parameter: , , (Debugging and optimization values); Oscillation suppression: When detecting Adjust the rate from Down to .

[0099] (4) Second level of protection: mechanical locking.

[0100] Triggering conditions: ,continued ; Execution: Send an electromagnetic locking signal, and the hydraulic pin engages the slot; Fault diagnosis: If the condition is not met within 35 seconds, trigger sensor calibration; (5) Third level protection: electrical disconnection.

[0101] Condition verification: (a) Mechanical locking is completed and , established; (b) Calculation of cumulative wind load: ; Pick , , (1-minute data): ; Grand total (9 minutes), exceeding Force disconnect; (c) Power gradual control: ,in, , ; : ; : ; : .

[0102] (6) Fault diagnosis and redundancy mechanism.

[0103] Timeout scenario: Angle zeroing timeout ; Response: Skip the first stage, directly trigger the mechanical lock, activate the backup power supply to drive the electromagnetic lock, and record the fault code; Priority execution: Electrical disconnection always takes precedence; if mechanical locking fails, electrical disconnection will still be executed.

[0104] (7) Protection release mechanism.

[0105] Recovery conditions: , It lasted for 18 minutes; Restore electrical connection: Self-test insulation resistance Close the circuit breaker; release the mechanical lock: the hydraulic pin retracts; angle reset: PID control returns; interruption mechanism: if the wind speed suddenly rises to 14.5m / s during the reset process, the three-level protection will be immediately terminated and restarted.

[0106] This embodiment also provides a multi-level interlocking control device for photovoltaic panels under typhoon mode. This device is used to implement the above embodiments and preferred embodiments, and details already described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0107] This embodiment provides a multi-level interlocking control device for photovoltaic panels under typhoon mode, such as... Figure 5 As shown, it includes: The acquisition module 501 is used to acquire the first wind speed data of the environment where the photovoltaic system is located. The judgment module 502 is used to determine whether the photovoltaic system meets the preset protection trigger conditions based on the first wind speed data; The first trigger module 503 is used to trigger the first-level protection mechanism if the photovoltaic system meets the preset protection trigger conditions. The first-level protection mechanism is used to control the pitch angle of the photovoltaic bracket to return to zero at a preset rate. The second trigger module 504 is used to trigger the second protection mechanism when the first protection mechanism is detected to be completed or the first duration is reached. The second protection mechanism is used to activate the bracket locking device to fix the position of the photovoltaic modules in the photovoltaic system. The third trigger module 505 is used to trigger the third-level protection mechanism when the second-level protection mechanism is detected to be completed or the second duration is reached. The third-level protection mechanism is used to disconnect the electrical connection between the photovoltaic system and the power grid and / or energy storage equipment.

[0108] In some optional implementations, the determination module 502 includes: The startup submodule is used to initiate a timing operation if the first wind speed data is greater than a preset wind speed threshold. The first acquisition submodule is used to acquire multiple second wind speed data within the target time when the target time is reached, and the acquisition time of each second wind speed data is later than the acquisition time of the first wind speed data. The first determining submodule is used to determine that the photovoltaic system meets the preset protection triggering conditions if multiple second wind speed data are greater than or equal to the preset wind speed threshold. The second determination submodule is used to determine that the photovoltaic system does not meet the preset protection triggering conditions if there is a second wind speed data that is less than the preset wind speed threshold.

[0109] In some optional implementations, the determination module 502 includes: The calculation submodule is used to calculate the cumulative energy value of the first wind speed data using a sliding window algorithm. The third determination submodule is used to determine if the cumulative energy value of wind speed is greater than or equal to the preset energy threshold, and to determine if the photovoltaic system meets the preset protection trigger condition. The fourth determination submodule is used to determine if the cumulative energy value of wind speed is less than the preset energy threshold, thus indicating that the photovoltaic system does not meet the preset protection trigger conditions.

[0110] In some alternative implementations, the first trigger module 503 includes: The control submodule is used to control the pitch angle of the photovoltaic bracket to return to zero at a preset rate using a closed-loop PID controller.

[0111] In some alternative implementations, the second trigger module 504 includes: The sending submodule is used to send a start signal to the bracket locking device when the tilt angle of the photovoltaic bracket is detected to be zero or reaches a second duration, so that the bracket locking device can fix the photovoltaic modules in the photovoltaic system.

[0112] In some alternative implementations, the third trigger module 505 includes: The second acquisition submodule is used to acquire multiple third wind speed data of the environment in which the photovoltaic system is located when the bracket locking device has completed fixing the photovoltaic modules in the photovoltaic system or when the second time period has been reached. The solution submodule is used to substitute multiple third-party wind speed data into a preset relational formula to solve for the cumulative wind load of the photovoltaic system. The trigger submodule is used to trigger a three-level protection mechanism when the cumulative wind load exceeds the preset wind load threshold.

[0113] The photovoltaic panel multi-level interlocking control device under typhoon mode provided in this embodiment of the invention can execute the photovoltaic panel multi-level interlocking control method under typhoon mode provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method. Further functional descriptions of the above modules and units are the same as in the corresponding embodiments described above, and will not be repeated here.

[0114] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0115] The following is a detailed reference. Figure 6This diagram illustrates a suitable structural design for implementing an electronic device according to embodiments of the present invention. The electronic device may include a processor (e.g., a central processing unit, graphics processor, etc.) 601, which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) 602 or a program loaded from memory 608 into random access memory (RAM) 603. RAM 603 also stores various programs and data required for the operation of the electronic device. The processor 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0116] Typically, the following devices can be connected to I / O interface 605: input devices 606 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 607 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 608 including, for example, magnetic tapes, hard disks, etc.; and communication devices 609. Communication device 609 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 6 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown, and more or fewer devices may be implemented or have instead.

[0117] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 609, or installed from a memory 608, or installed from a ROM 602. When the computer program is executed by the processor 601, it performs the functions defined in the typhoon mode photovoltaic panel multi-level interlocking control method of the embodiments of the present invention.

[0118] Figure 6 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0119] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that the computer, processor, microprocessor controller, or programmable hardware includes storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the multi-level interlocking control method for photovoltaic panels under typhoon mode shown in the above embodiments is implemented.

[0120] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0121] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A multi-level interlocking control method for photovoltaic panels under typhoon mode, characterized in that, The method includes: Obtain the first wind speed data of the environment where the photovoltaic system is located; Based on the first wind speed data, determine whether the photovoltaic system meets the preset protection trigger conditions; If the photovoltaic system meets the preset protection trigger conditions, the first-level protection mechanism is triggered. The first-level protection mechanism is used to control the pitch angle of the photovoltaic support to return to zero at a preset rate. When the first-level protection mechanism is detected to be completed or the first duration is reached, the second-level protection mechanism is triggered. The second-level protection mechanism is used to activate the bracket locking device to fix the position of the photovoltaic modules in the photovoltaic system. When the secondary protection mechanism is detected to be completed or the second duration is reached, the tertiary protection mechanism is triggered. The tertiary protection mechanism is used to disconnect the electrical connection between the photovoltaic system and the power grid and / or energy storage equipment.

2. The method according to claim 1, characterized in that, The step of determining whether the photovoltaic system meets the preset protection triggering conditions based on the first wind speed data includes: If the first wind speed data is greater than the preset wind speed threshold, start the timing operation; When the target duration is reached, multiple second wind speed data within the target duration are acquired, and the acquisition time of each second wind speed data is later than the acquisition time of the first wind speed data. If multiple second wind speed data are all greater than or equal to the preset wind speed threshold, it is determined that the photovoltaic system meets the preset protection trigger condition. If a second wind speed data point is found to be less than the preset wind speed threshold, it is determined that the photovoltaic system does not meet the preset protection trigger condition.

3. The method according to claim 1, characterized in that, The step of determining whether the photovoltaic system meets the preset protection triggering conditions based on the first wind speed data includes: The cumulative energy value of the first wind speed data is calculated using a sliding window algorithm. If the cumulative energy value of wind speed is greater than or equal to a preset energy threshold, the photovoltaic system is determined to meet the preset protection trigger condition. If the cumulative energy value of wind speed is less than the preset energy threshold, it is determined that the photovoltaic system does not meet the preset protection trigger condition.

4. The method according to any one of claims 1 to 3, characterized in that, The step of triggering the first-level protection mechanism if the photovoltaic system meets the preset protection trigger conditions includes: A closed-loop PID controller is used to control the pitch angle of the photovoltaic support to return to zero at a preset rate.

5. The method according to any one of claims 1 to 3, characterized in that, The step of triggering the secondary protection mechanism when the primary protection mechanism is detected to have completed or reached the first duration includes: When the pitch angle of the photovoltaic bracket is detected to be zero or reaches the second duration, a start signal is sent to the bracket locking device so that the bracket locking device can fix the photovoltaic modules in the photovoltaic system.

6. The method according to any one of claims 1 to 3, characterized in that, The step of triggering the third-level protection mechanism when the second-level protection mechanism is detected to have completed or reached the second duration includes: When the bracket locking device is detected to have completed fixing the photovoltaic modules in the photovoltaic system or reached the second time period, multiple third wind speed data of the environment in which the photovoltaic system is located are obtained. By substituting multiple third-party wind speed data into a preset relational formula, the cumulative wind load of the photovoltaic system can be obtained. When the cumulative wind load exceeds the preset wind load threshold, a three-level protection mechanism is triggered.

7. A multi-level interlocking control device for photovoltaic panels under typhoon mode, characterized in that, The device includes: The acquisition module is used to acquire the first wind speed data of the environment where the photovoltaic system is located; The judgment module is used to determine whether the photovoltaic system meets the preset protection trigger conditions based on the first wind speed data; The first triggering module is used to trigger a first-level protection mechanism if the photovoltaic system meets the preset protection triggering conditions. The first-level protection mechanism is used to control the pitch angle of the photovoltaic bracket to return to zero at a preset rate. The second triggering module is used to trigger the second-level protection mechanism when the first-level protection mechanism is detected to be completed or the first duration is reached. The second-level protection mechanism is used to activate the bracket locking device to fix the position of the photovoltaic modules in the photovoltaic system. The third triggering module is used to trigger the third-level protection mechanism when the second-level protection mechanism is detected to be completed or the second duration is reached. The third-level protection mechanism is used to disconnect the electrical connection between the photovoltaic system and the power grid and / or energy storage equipment.

8. An electronic device, characterized in that, include: The system includes a memory and a processor, which are interconnected. The memory stores computer instructions, and the processor executes the computer instructions to perform the multi-level interlocking control method for photovoltaic panels under typhoon mode as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the multi-level interlocking control method for photovoltaic panels in typhoon mode as described in any one of claims 1 to 6.

10. A computer program product, characterized in that, The method includes computer instructions for causing a computer to execute the multi-level interlocking control method for photovoltaic panels under typhoon mode as described in any one of claims 1 to 6.

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