An emergency power supply device for offshore wind power booster station

Abstract

The application discloses a kind of emergency power supply devices for offshore wind power booster station applied to power supply device field, by carefully dividing high priority load into multiple different purpose priority load clusters, and corresponding different fault types with priority load cluster, according to the monitoring data on offshore wind power booster station, the fault type is judged, and according to fault type, energy storage module is powered to corresponding single or multiple priority load clusters, and the rest of the priority load cluster is not powered, so that the energy of energy storage module is more effectively used, and there is no power waste or part of the special load is not powered, to further improve the operation stability and personnel safety of offshore wind power booster station, and in harsh marine environment, pretest operation is carried out on energy storage module and multiple priority load clusters, and the fault possibility of energy storage module or priority load cluster is found in time, to achieve the effect of early warning.

Description

Technical Field

[0001] This invention relates to the field of power supply devices, and in particular to an emergency power supply device for offshore wind power booster stations. Background Technology

[0002] Offshore wind power booster stations, serving as the power collection center for offshore wind farms, play a crucial role in connecting upstream and downstream operations. They are connected to the onshore metering station via a 220kV submarine cable and to each wind turbine via a 35kV submarine cable. This system collects the electricity generated by the wind turbines, raises the voltage to a level suitable for long-distance transmission via a main transformer, and then transmits it to the onshore power grid through submarine cables. This ensures that the electricity generated by the wind farm can be efficiently and stably integrated into the grid, providing power to onshore users.

[0003] The purpose of the emergency power supply system for offshore wind power booster stations is to ensure that critical equipment in the booster station can still be provided with continuous, stable and reliable power in the event of a power outage in the main power grid or other emergencies, thus ensuring system safety. For example, Chinese patent CN202123080991.3 discloses an offshore booster station power system that uses an energy storage unit system as an emergency power source. By configuring a fast switching switch through the energy storage unit system, it has better flexibility and faster response speed, which can improve the reliability of the offshore booster station power system. In the subsequent operation of the offshore booster station, the energy storage unit system has advantages such as less daily maintenance workload and no noise impact during operation.

[0004] However, the existing technology of using energy storage units as emergency power sources for offshore wind power booster stations has the following drawbacks: First, in an emergency, the emergency power source will supply power to the loads with higher priority. However, the priority loads are preset. In reality, there are different types of emergencies, such as complete power outages and fires. The loads that need emergency power supply also differ under different emergency situations. If all high-priority loads are supplied power according to the preset load priority data, there is a risk of wasting energy or some special loads not receiving power. Second, there are many severe conditions at sea, such as strong winds and frequent waves. In severe cases, the offshore wind power booster station and its equipment may shake to a certain extent, which may cause the loads and emergency power sources on the offshore wind power booster station to fail. However, the existing technology makes it difficult to detect the failure status of the loads and emergency power sources in a timely manner. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The core of this invention lies in further dividing high-priority loads into multiple priority load clusters according to different uses, and supplying power to the corresponding priority load clusters according to the fault type, thereby solving the problems of energy waste or lack of power supply for some special loads in the prior art. At the same time, when there is a harsh marine environment, pre-testing operations are performed on the energy storage module and multiple priority load clusters to detect potential faults in the energy storage module or priority load clusters in a timely manner, achieving the effect of early warning.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] An emergency power supply device for an offshore wind power booster station includes an energy storage module, a power supply switching module, a data feature collection module, and an event judgment module. The power supply switching module is connected to a priority database, which stores multiple priority load clusters for different purposes. The event judgment module is connected to an event type library, which stores multiple different fault types for triggering emergency power supply operations. Each different fault type corresponds to at least one priority load cluster. Each fault type contains corresponding monitoring data features, including lighting image data features, sound data features, and alarm data features.

[0010] The data feature collection module is used to collect lighting image data, sound data, and alarm data of the offshore wind power booster station; the event judgment module compares the multiple real-time data collected by the data feature collection module with the monitoring data features in the event type library to determine the fault type; the power supply switching module controls the energy storage module to supply power to the corresponding priority load cluster according to the determined fault type.

[0011] The power switching module is also connected to a predictive maintenance module, which includes an ocean data acquisition unit, a power monitoring unit, a fault prediction unit, and a power database. The power database stores multiple standard power ranges, and each of the multiple standard power ranges corresponds one-to-one with a multiple priority load cluster.

[0012] Furthermore, lighting image data is collected by cameras installed on offshore wind power booster stations, sound data is the sound signal of the load during operation, and it is collected by sound sensors installed around the load. Alarm data is transmitted from fire detectors installed on offshore wind power booster stations to the data feature collection module.

[0013] Furthermore, the marine data acquisition unit includes a wind acquisition unit and a wave acquisition unit. The wind acquisition unit is connected to a wind speed sensor installed on the offshore wind power booster station, and the wave acquisition unit acquires wave data near the offshore wind power booster station through marine buoys.

[0014] Furthermore, priority load clusters can be used for emergency lighting, fire fighting, communication transmission, and power control.

[0015] An emergency power supply device for offshore wind power booster stations, the method of using which includes the following steps:

[0016] S1. The data feature collection module collects lighting image data, sound data and alarm data of the offshore wind power booster station in real time to determine whether there are fault events on the offshore wind power booster station that require emergency power supply operation and the specific fault type.

[0017] S2. When a fault event occurs, the corresponding priority load cluster is identified based on the determined fault type. Then, the energy storage module provides emergency power to the identified priority load cluster, while other priority load clusters are not powered.

[0018] An emergency power supply device for offshore wind power booster stations, the method of using which includes the following steps:

[0019] W1. Collect ocean wind speed data V and ocean wave data R in real time through the ocean data acquisition unit. When any of the following situations occur, proceed to step W2: Situation 1: Ocean wind speed data V exceeds the preset safety value V1; Situation 2: The number of times ocean wind speed data V exceeds the preset standard value V2 reaches the threshold A, where V2 < V1; Situation 3: Ocean wave data R exceeds the preset safety value R1; Situation 4: The number of times ocean wave data R exceeds the preset standard value R2 reaches the threshold B, where R2 < R1.

[0020] W2. Activate the power supply switching module to enable the energy storage module to supply power to multiple priority load clusters individually. Simultaneously, the power monitoring unit monitors the actual discharge power of the energy storage module, and the fault prediction unit compares the actual discharge power with the corresponding standard power range to achieve the following fault prediction process:

[0021] W2-1. When the energy storage module supplies power to the priority load cluster Q, its actual discharge power deviates from the corresponding standard power range, but its actual discharge power is within the corresponding standard power range when supplying power to other priority load clusters, it indicates that the priority load cluster Q may be faulty, and the fault prediction unit will issue a load warning.

[0022] W2-2. When the energy storage module discharges power outside the corresponding standard power range while supplying power to multiple different priority load clusters, it indicates that the energy storage module may be faulty, and the fault prediction unit will issue a power supply warning.

[0023] Optionally, the present invention also includes a vibration detection component fixedly installed on the energy storage module. The vibration detection component includes a hollow cylinder, inside which is placed a spherical shell. Inside the spherical shell, a counterweight hemisphere is fixedly connected. A reflector is fixedly connected to the upper end of the counterweight hemisphere. A one-dimensional laser rangefinder is fixedly connected to the inner top surface of the hollow cylinder. The one-dimensional laser rangefinder is connected to the ocean data acquisition unit.

[0024] Furthermore, the outer diameter of the spherical shell is the same as the inner diameter of the hollow cylinder. A notch is provided at the upper end of the spherical shell. The center of the counterweight hemisphere coincides with the center of the reflector. The lower center of the reflector is located at the center of the counterweight hemisphere, and the reflector is located at the center of the notch and extends to the outside of the notch.

[0025] Furthermore, in the initial state, the opening end of the notch is horizontal, the central axis of the reflector is vertical, and the one-dimensional laser rangefinder is located directly above the reflector.

[0026] Furthermore, a retaining ring is fixedly connected to the inner wall of the hollow cylinder, and the retaining ring is located on the upper side of the center of the spherical shell.

[0027] 3. Beneficial Effects

[0028] Compared with the prior art, the advantages of this invention are:

[0029] (1) This scheme divides high-priority loads into multiple different priority load clusters according to their uses, and then associates the priority load clusters with different fault types. When a fault event occurs at the offshore wind power booster station that requires the triggering of emergency power supply operation, the fault type is first determined based on the monitoring data, and then the energy storage module supplies power to the corresponding single or multiple priority load clusters according to the fault type. The remaining other priority load clusters are not supplied with power, so that the energy of the energy storage module can be used more effectively, and there is less chance of energy waste or some special loads not being supplied with power, thereby further improving the operational stability of the offshore wind power booster station and the safety of personnel.

[0030] (2) When there is a harsh environment, the energy storage module supplies power to multiple priority load clusters one by one, and monitors and analyzes the actual discharge power of the energy storage module, so as to perform pre-testing operations on the energy storage module and multiple priority load clusters, and promptly detect the possible faults of the energy storage module or priority load clusters, thus achieving the effect of early warning.

[0031] (3) By setting up the vibration detection component, the integrity of the wind speed sensor and the ocean buoy can be verified to a certain extent, and then the corresponding equipment fault reminder can be given so that the personnel can carry out timely maintenance. Attached Figure Description

[0032] Figure 1The system block of the present invention Figure 1 ;

[0033] Figure 2 This is a flowchart of the present invention;

[0034] Figure 3 The system block of the present invention Figure 2 ;

[0035] Figure 4 This is a perspective view of the vibration detection component of the present invention;

[0036] Figure 5 This is a front view of the vibration detection component of the present invention in its initial state.

[0037] Figure 6 This is a schematic diagram of the front structure of the spherical shell of the present invention when it sways relative to the hollow cylinder. Figure 1 ;

[0038] Figure 7 This is a schematic diagram of the front structure of the spherical shell of the present invention when it sways relative to the hollow cylinder. Figure 2 .

[0039] Explanation of the labels in the diagram:

[0040] 1. Hollow cylinder, 2. Spherical shell, 201 notch, 3. Counterweight hemisphere, 4. Reflector, 5. One-dimensional laser rangefinder, 6. Stop ring. Detailed Implementation

[0041] The technical solutions will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0042] Example 1:

[0043] Please see Figure 1 An emergency power supply device for offshore wind power booster stations includes an energy storage module, a power supply switching module, a data feature collection module, and an event judgment module. The power supply switching module is connected to a priority database, which stores multiple priority load clusters for different purposes. The event judgment module is connected to an event type library, which stores multiple different fault types used to trigger emergency power supply operations. Each different fault type corresponds to at least one priority load cluster. Each fault type contains corresponding monitoring data features, including lighting image data features, sound data features, and alarm data features.

[0044] The data feature collection module is used to collect lighting image data, sound data, and alarm data of the offshore wind power booster station; the event judgment module compares the multiple real-time data collected by the data feature collection module with the monitoring data features in the event type library to determine the fault type; the power supply switching module controls the energy storage module to supply power to the corresponding priority load cluster according to the determined fault type.

[0045] Lighting image data is collected by cameras installed on offshore wind power booster stations. There are multiple cameras, which are set up near different indoor lighting devices to collect images of the lighting devices and the surrounding areas. By analyzing the images collected by the cameras, it can be determined whether the lighting devices in the area are turned on normally. When the analysis of the image data shows that multiple lighting devices are abnormally turned off, it indicates that the lighting devices are in a power outage state.

[0046] The sound data is the sound signal of the load during operation, and it is collected by sound sensors installed around the load. There are multiple sound sensors installed around different loads. High-power loads (such as transformers) generally generate a lot of noise during operation, which can be collected by sound sensors. When the sound signals monitored by multiple sound sensors decrease to near zero at the same time, it indicates that multiple loads may be experiencing power outages or shutdowns.

[0047] Alarm data is transmitted from fire detectors installed on offshore wind power booster stations to the data feature collection module. There are multiple fire detectors, which can be heat detectors, smoke detectors, etc., and they are installed in multiple different areas where fire accidents are likely to occur.

[0048] The uses of priority load clusters include, but are not limited to, the following: emergency lighting, fire fighting, communication transmission and power control.

[0049] An emergency power supply device for offshore wind power booster stations, the method of using which includes the following steps:

[0050] S1. The data feature collection module collects lighting image data, sound data and alarm data of the offshore wind power booster station in real time to determine whether there are fault events on the offshore wind power booster station that require emergency power supply operation and the specific fault type.

[0051] If the lighting image data, sound data, and alarm data are all normal (i.e., the lighting devices are in normal operation, the high-power loads are in normal operation, and the fire detectors have not issued a fire alarm), it indicates that there is no fault event at the offshore wind power booster station, all loads are operating normally, and there is no need for emergency power supply.

[0052] S2. When a fault event occurs, the corresponding priority load cluster is identified based on the determined fault type. Then, the energy storage module provides emergency power to the identified priority load cluster, while other priority load clusters are not powered.

[0053] The following examples illustrate the usage of the above methods:

[0054] Depending on their intended use, the high-priority loads already defined in the existing technology are further divided into multiple priority load clusters, such as: priority load cluster a (used for emergency lighting, including indoor lighting, evacuation corridor lighting, etc.), priority load cluster b (used for fire fighting, including sprinkler equipment, water pumps, etc.), priority load cluster c (used for communication transmission, including switches, microwave transceivers, etc.), and priority load cluster d (used for power control, including transformers, etc.).

[0055] The fault types include, but are not limited to, the following: Fault Type 1 (total power failure), Fault Type 2 (local fire), and Fault Type 3 (local power failure); Fault Type 1 corresponds to priority load clusters c and d, Fault Type 2 corresponds to priority load clusters a, b, and c, and Fault Type 3 corresponds to priority load cluster d.

[0056] Combination Figure 2 As shown, in step S1, if the lighting image data and sound data are both normal, but the alarm data indicates a local fire, i.e., the fire detector has issued a fire alarm, then step S1 can be determined as follows: a fault event requiring emergency power supply has occurred at the offshore wind power booster station, and the fault event is fault type two (local fire). At this time, in step S2, the energy storage module should supply power to priority load cluster a, priority load cluster b, and priority load cluster c, so that priority load cluster a can be lit normally, facilitating personnel evacuation and escape, and priority load cluster b and c can be lit normally, facilitating personnel evacuation and escape. Group B can extinguish fires in a timely manner, effectively maintaining the safety of offshore wind power booster stations and personnel. Priority load group C can effectively ensure communication with the onshore base station, enabling the onshore base station to be aware of the accident situation at the offshore wind power booster station in a timely manner. (Supplementary explanation: Although most existing offshore wind power booster stations adopt an unmanned operation mode, they are not permanently unmanned. During maintenance, inspection, etc., personnel need to enter the offshore wind power booster station and stay for a period of time, depending on the progress of maintenance and inspection. Therefore, in the event of a fire, the normal lighting of priority load group A is extremely important for personnel safety.)

[0057] Combination Figure 2As shown, in step S1, if the lighting image data and sound data indicate that all lighting devices are off and high-power loads are shut down, and the alarm data is normal, then step S1 can be determined as follows: a fault event requiring emergency power supply operation has occurred at the offshore wind power booster station, and the fault event is fault type one (total power failure). At this time, in step S2, the energy storage module should supply power to priority load cluster c and priority load cluster d, so that priority load cluster d continues to operate, effectively ensuring the booster station's collection, boosting, and transmission of electrical energy, and priority load cluster c effectively ensures communication with the onshore base station, so that the onshore base station can be aware of the accident situation at the offshore wind power booster station in a timely manner.

[0058] Therefore, this application meticulously divides high-priority loads into multiple different priority load clusters according to their uses, and then associates these priority load clusters with different fault types. When a fault event occurs at the offshore wind power booster station that requires triggering emergency power supply, the fault type is first determined based on monitoring data. Then, based on the fault type, the energy storage module supplies power to the corresponding single or multiple priority load clusters, while the remaining priority load clusters are not supplied with power. This allows for more efficient use of the energy storage module's electrical energy, reducing the likelihood of energy waste or situations where some special loads are not supplied with power, and further improving the operational stability and personnel safety of the offshore wind power booster station.

[0059] Example 2:

[0060] This embodiment adds the following content to Embodiment 1: Please refer to Figure 3 The power supply switching module is also connected to a predictive maintenance module, which includes a marine data acquisition unit, a power monitoring unit, a fault prediction unit, and a power database. The power database stores multiple standard power ranges, and each of the multiple standard power ranges corresponds one-to-one with multiple priority load clusters. The marine data acquisition unit includes a wind acquisition unit and a wave acquisition unit. The wind acquisition unit is connected to a wind speed sensor installed on the offshore wind power booster station, and the wave acquisition unit acquires wave data near the offshore wind power booster station through marine buoys.

[0061] With the above settings in place, the method of using this emergency power supply device also includes the following steps:

[0062] W1. Collect ocean wind speed data V and ocean wave data R in real time through the ocean data acquisition unit. When any of the following situations occur, proceed to step W2: Situation 1: Ocean wind speed data V exceeds the preset safety value V1; Situation 2: The number of times ocean wind speed data V exceeds the preset standard value V2 reaches the threshold A, where V2 < V1; Situation 3: Ocean wave data R exceeds the preset safety value R1; Situation 4: The number of times ocean wave data R exceeds the preset standard value R2 reaches the threshold B, where R2 < R1.

[0063] Additional explanation: If Case 2 occurs once, the count for the sea wind speed data V exceeding the preset standard value V2 will be restarted until it reaches the threshold A again, which will then be counted as Case 2 once. Similarly, the same method will be used for counting Case 4.

[0064] W2. Activate the power supply switching module to enable the energy storage module to supply power to multiple priority load clusters individually. Simultaneously, the power monitoring unit monitors the actual discharge power of the energy storage module, and the fault prediction unit compares the actual discharge power with the corresponding standard power range to achieve the following fault prediction process:

[0065] W2-1. When the energy storage module supplies power to the priority load cluster Q, its actual discharge power deviates from the corresponding standard power range, but its actual discharge power is within the corresponding standard power range when supplying power to other priority load clusters, it indicates that the priority load cluster Q may be faulty, and the fault prediction unit will issue a load warning.

[0066] W2-2. When the energy storage module discharges power outside the corresponding standard power range while supplying power to multiple different priority load clusters, it indicates that the energy storage module may be faulty, and the fault prediction unit will issue a power supply warning.

[0067] The reason and purpose of the above method of use: Since strong winds or large waves can have unpredictable effects on the stability of various loads on offshore wind power booster stations, when excessive wind force (i.e., situation one), frequent strong winds (i.e., situation two), excessive waves (i.e., situation three), or frequent waves (i.e., situation four) are detected, step W2 can be used to pre-test the normality of the energy storage module and multiple priority load clusters, thereby timely detecting the possible failure of the energy storage module or a certain priority load cluster, achieving the effect of early warning, and further ensuring the emergency power supply response effect of the energy storage module in the later stage, as well as the reliable operation of the priority load cluster.

[0068] Example 3:

[0069] Based on Example 2, this embodiment adds a vibration detection component that is fixedly installed on the energy storage module. The energy storage module generally includes a battery, and the vibration detection component can be installed on the external casing of the battery.

[0070] Please see Figure 4 and Figure 5The vibration detection component includes a hollow cylinder 1, inside which is placed a spherical shell 2. A counterweight hemisphere 3 is fixedly connected inside the spherical shell 2. A reflector 4 is fixedly connected to the upper end of the counterweight hemisphere 3. A one-dimensional laser rangefinder 5 is fixedly connected to the inner top surface of the hollow cylinder 1. The one-dimensional laser rangefinder 5 is connected to the marine data acquisition unit. The outer diameter of the spherical shell 2 is the same as the inner diameter of the hollow cylinder 1. A notch 201 is opened at the upper end of the spherical shell 2. The center of the counterweight hemisphere 3 coincides with the center of the reflector 4. The lower center of the reflector 4 is located at the center of the counterweight hemisphere 3, and the reflector 4 is located at the center of the notch 201 and extends to the outside of the notch 201. A retaining ring 6 is fixedly connected to the inner wall of the hollow cylinder 1. The retaining ring 6 is located above the center of the spherical shell 2. A mounting plate is fixedly connected to the lower end of the hollow cylinder 1. The hollow cylinder 1 can be easily installed on the outer casing of the battery through mounting holes and bolt fasteners.

[0071] In Example 2, wind speed sensors and ocean buoys are prone to damage in harsh marine environments or after prolonged use, leading to inaccurate wind speed or wave data. This can result in unnecessary or missed activation of step W2. The vibration detection component in this example verifies the integrity of the wind speed sensor and ocean buoy, providing corresponding equipment fault alerts for timely maintenance. The specific verification principle is as follows:

[0072] Please see Figure 5 Initially, the opening of notch 201 is horizontal, the central axis of reflector 4 is vertical, and the one-dimensional laser rangefinder 5 is located directly above the reflector 4. At this time, the laser emitted by the one-dimensional laser rangefinder 5 returns after reaching the upper surface of the reflector 4, and the distance data measured by the one-dimensional laser rangefinder 5 is the smallest. Figure 5 , Figure 6 and Figure 7 The dashed arrow in the image represents the laser emission path of the one-dimensional laser rangefinder 5.

[0073] When an offshore wind power booster station shakes due to excessive wind or wave impact, the energy storage module and vibration detection component will simultaneously transmit the shaking data, such as... Figure 6 and Figure 7As shown, when the energy storage module and the hollow cylinder 1 sway and tilt, the spherical shell 2 inside them will sway. Since the spherical shell 2 is in a certain free state inside the hollow cylinder 1, the spherical shell 2 will have swaying inertia, which causes a relative position change between the spherical shell 2 and the hollow cylinder 1. The spherical shell 2 rotates to a certain extent inside the hollow cylinder 1, and the reflector 4 rotates synchronously with the spherical shell 2. At this time, the laser emitted by the one-dimensional laser rangefinder 5 reaches the side end face of the tilted reflector 4 and then returns. Compared with the initial state, the distance data measured by the one-dimensional laser rangefinder 5 increases, and the distance data is directly proportional to the tilt of the reflector 4. The tilt of the reflector 4 is also directly proportional to the wind speed data and the wave data.

[0074] While acquiring real-time sea wind speed data V and wave data R, the marine data acquisition unit also simultaneously acquires data from the one-dimensional laser rangefinder 5. This allows it to determine the corresponding data from the one-dimensional laser rangefinder 5 for different sea wind speed data V and different wave data R. By storing this data, it can be used as historical data. During subsequent continuous monitoring, after acquiring sea wind speed data V and wave data R, it can be compared with historical data to obtain verification results. A specific comparison method is illustrated below:

[0075] Suppose that the historical data contains successively increasing sea wind speed data e1, e2, e3..., and the corresponding data from the one-dimensional laser rangefinder 5 are successively P1, P2, P3...; and there are also successively increasing sea wave data n1, n2, n3..., and the corresponding data from the one-dimensional laser rangefinder 5 are successively m1, m2, m3...;

[0076] In subsequent monitoring, if the acquired sea wind speed data V falls between e2 and e3, but the data acquired by the one-dimensional laser rangefinder 5 does not fall between the corresponding P2 and P3, this situation is recorded as an anomaly. When the number of anomalies reaches a set value, it indicates that one of the wind speed sensor and vibration detection components may be malfunctioning. At this point, the wave data R is analyzed. If the monitored wave data R and the data from the one-dimensional laser rangefinder 5 at the same moment match the historical data, it can be inferred that the wind speed sensor is likely malfunctioning. If the wave data R and the data from the one-dimensional laser rangefinder 5 at the same moment also do not match the historical data, it can be inferred that the vibration detection component is likely malfunctioning. Similarly, when there are multiple anomalies in the wave data R, the presence of a malfunction in the ocean buoy can also be inferred from the sea wind speed data V.

[0077] Additional notes: such as Figure 7As shown, the retaining ring 6 restricts the maximum rotation angle of the spherical shell 2 relative to the hollow cylinder 1. When the reflector 4 rotates to contact the inner end of the retaining ring 6, the spherical shell 2 can no longer rotate. At this time, the contact surface between the inner wall of the hollow cylinder 1 and the spherical shell 2 is still a circle, and the spherical shell 2 cannot move horizontally. Moreover, the laser line of the one-dimensional laser rangefinder 5 still passes through the inside of the notch 201, thus effectively ensuring that during the rotation of the spherical shell 2, the laser line of the one-dimensional laser rangefinder 5 always reaches the reflector 4 and then returns, and is not easy to reach other structures.

[0078] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. An emergency power supply device for offshore wind power booster stations, comprising an energy storage module, characterized in that: It also includes a power switching module, a data feature collection module, and an event judgment module. The power switching module is connected to a priority database, which stores multiple priority load clusters for different purposes. The event judgment module is connected to an event type library, which stores multiple different fault types used to trigger emergency power supply operations. Each different fault type corresponds to at least one priority load cluster. Each fault type contains corresponding monitoring data features, including lighting image data features, sound data features, and alarm data features. The data feature collection module is used to collect lighting image data, sound data, and alarm data of the offshore wind power booster station; the event judgment module compares the multiple real-time data collected by the data feature collection module with the monitoring data features in the event type library to determine the fault type; the power supply switching module controls the energy storage module to supply power to the corresponding priority load cluster according to the determined fault type. The power supply switching module is also connected to a predictive maintenance module, which includes a marine data acquisition unit, a power monitoring unit, a fault prediction unit, and a power database. The power database stores multiple standard power ranges, and each of the multiple standard power ranges corresponds one-to-one with multiple priority load clusters. The aforementioned emergency power supply device also includes a vibration detection component fixedly installed on the energy storage module. The vibration detection component includes a hollow column (1), inside which is placed a spherical shell (2). Inside the spherical shell (2), a counterweight hemisphere (3) is fixedly connected. A reflector (4) is fixedly connected to the upper end of the counterweight hemisphere (3). A one-dimensional laser rangefinder (5) is fixedly connected to the inner top surface of the hollow column (1). The one-dimensional laser rangefinder (5) is connected to the ocean data acquisition unit.

2. An emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: The lighting image data is collected by a camera installed on the offshore wind power booster station. The sound data is the sound signal when the load is running, and it is collected by a sound sensor installed around the load. The alarm data is transmitted to the data feature collection module by a fire detector installed on the offshore wind power booster station.

3. An emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: The marine data acquisition unit includes a wind acquisition unit and a wave acquisition unit. The wind acquisition unit is connected to a wind speed sensor installed on the offshore wind power booster station, and the wave acquisition unit acquires wave data near the offshore wind power booster station through marine buoys.

4. An emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: The priority load cluster is used for emergency lighting, fire fighting, communication transmission, and power control.

5. An emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: The outer diameter of the spherical shell (2) is the same as the inner diameter of the hollow cylinder (1). The upper end of the spherical shell (2) has a notch (201). The center of the counterweight hemisphere (3) coincides with the center of the reflector (4). The lower center of the reflector (4) is located at the center of the counterweight hemisphere (3), and the reflector (4) is located at the center of the notch (201) and extends to the outside of the notch (201).

6. An emergency power supply device for an offshore wind power booster station according to claim 5, characterized in that: In the initial state, the opening end of the notch (201) is in a horizontal state, the central axis of the reflector (4) is in a vertical state, and the one-dimensional laser rangefinder (5) is located directly above the reflector (4).

7. An emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: The inner wall of the hollow column (1) is fixedly connected with a retaining ring (6), which is located on the upper side of the center of the spherical shell (2).

8. The method of using an emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: Includes the following steps: S1. The data feature collection module collects lighting image data, sound data and alarm data of the offshore wind power booster station in real time to determine whether there are fault events on the offshore wind power booster station that require emergency power supply operation and the specific fault type. S2. When a fault event occurs, the corresponding priority load cluster is identified based on the determined fault type. Then, the energy storage module provides emergency power to the identified priority load cluster, while other priority load clusters are not powered.

9. The method of using an emergency power supply device for an offshore wind power booster station according to claim 1, characterized in that: Includes the following steps: W1. Collect ocean wind speed data V and ocean wave data R in real time through the ocean data acquisition unit. When any of the following situations occur, proceed to step W2: Situation 1: Ocean wind speed data V exceeds the preset safety value V1; Situation 2: The number of times ocean wind speed data V exceeds the preset standard value V2 reaches the threshold A, where V2 < V1; Situation 3: Ocean wave data R exceeds the preset safety value R1; Situation 4: The number of times ocean wave data R exceeds the preset standard value R2 reaches the threshold B, where R2 < R1. W2. Activate the power supply switching module to enable the energy storage module to supply power to multiple priority load clusters individually. Simultaneously, the power monitoring unit monitors the actual discharge power of the energy storage module, and the fault prediction unit compares the actual discharge power with the corresponding standard power range to achieve the following fault prediction process: W2-1. When the energy storage module supplies power to the priority load cluster Q, its actual discharge power deviates from the corresponding standard power range, but its actual discharge power is within the corresponding standard power range when supplying power to other priority load clusters, it indicates that the priority load cluster Q may be faulty, and the fault prediction unit will issue a load warning. W2-2. When the energy storage module discharges power outside the corresponding standard power range while supplying power to multiple different priority load clusters, it indicates that the energy storage module may be faulty, and the fault prediction unit will issue a power supply warning.

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