An automatic field impulse monitoring method for a wind farm and related devices

Abstract

This invention provides an automatic on-site impact monitoring method and related device for wind farms, belonging to the field of wind power generation technology. The method includes: collecting on-site environmental data and online status data of existing lightning protection devices at the wind farm; generating offline impact test commands based on the data and in conjunction with a regular inspection plan; isolating the lightning protection device to be tested from the normal operating system and connecting it to the impact test circuit; applying impact voltage or current according to preset impact parameters; collecting impact response data; and restoring the lightning protection device to the normal operating system circuit after the test is completed. This invention can automatically perform offline impact tests according to the on-site environment and the status of the lightning protection device, eliminating the need for manual on-site operation, significantly improving the safety and efficiency of testing, reducing operation and maintenance costs, supporting routine performance testing and remote monitoring of lightning protection devices, and is suitable for intelligent management of lightning protection systems in various types of wind farms.

Description

Technical Field

[0001] This invention belongs to the field of wind power generation technology, specifically relating to an automatic on-site impact monitoring method and related devices for wind farms. Background Technology

[0002] Wind farms are typically built in areas prone to lightning strikes, such as open fields, highlands, or coastal areas. The performance of lightning protection devices (such as lightning rods, down conductors, grounding devices, and surge arresters) for critical equipment like wind turbine generators directly affects the safe and stable operation of the wind farm. To ensure that lightning protection devices can operate effectively during lightning strikes, they need to be subjected to periodic impulse tests to verify their current-carrying capacity, response characteristics, and overall reliability.

[0003] Currently, impulse testing of lightning protection devices in wind farms is mostly conducted manually on-site. This involves testing personnel carrying the impulse testing equipment to the wind farm, manually isolating the lightning protection device from the operating system, connecting the test circuit, applying impulse voltage or current, and recording the response data. After the test, the lightning protection device is manually reconnected to its normal operation. This method has the following significant drawbacks: First, labor costs are high, especially for wind farms located in remote areas with inconvenient transportation. The travel time for personnel to and from the site is long, resulting in a high overall cost for a single test.

[0004] Second, the testing efficiency is low, making it difficult to achieve large-scale, routine impact testing. Because each unit or each lightning protection device requires manual operation one by one, the testing cycle is long, the coverage is limited, and it is impossible to conduct high-frequency performance tracking of all lightning protection devices in a wind farm.

[0005] Third, the testing process is greatly affected by weather, environment, and the skill level of personnel. For example, testing is not advisable during thunderstorms, strong winds, or severe temperature and humidity conditions. Furthermore, inconsistent human judgment standards can easily lead to inappropriate testing timing or biased test results.

[0006] Fourth, the real-time nature and sharing of test data are poor. Data recorded on-site often needs to be processed and entered afterward, and cannot be uploaded to the remote control center in a timely manner, which is not conducive to remote monitoring, rapid decision-making, and status assessment of the lightning protection system.

[0007] Fifth, frequent manual on-site operations may interfere with the normal operation of the wind farm, especially during the testing process when the lightning protection device needs to be isolated and restored. Improper operation may introduce safety risks or affect the availability of the equipment.

[0008] Therefore, there is an urgent need for a method and device that can automatically complete offline impact testing of lightning protection devices based on the site environment and the online status of the lightning protection devices, and upload the test results in real time, so as to overcome the many defects of the existing manual testing methods and improve the intelligent operation and maintenance level of lightning protection devices in wind farms. Summary of the Invention

[0009] The purpose of this invention is to provide an automatic on-site impact monitoring method and related device for wind farms, which solves the problems of low efficiency, high cost and poor real-time performance of manual on-site impact testing of lightning protection devices in the prior art. The device provided by this invention can automatically complete offline impact testing of specific lightning protection devices in wind farms based on the collected on-site data and instructions issued by the remote control center, and feed back the test results to the remote control center.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides an automatic on-site impact monitoring method for wind farms, comprising the following steps: Collect on-site environmental data and online status data of existing lightning protection devices at the wind farm; Based on the on-site environmental data and online status data, and combined with the preset periodic inspection plan, an offline impact test instruction for the existing lightning protection device is generated. According to the offline impact test command, the lightning protection device to be tested is isolated from the normal operating system and connected to the impact test circuit; According to the preset impact parameters, an impact voltage or impact current is applied to the lightning protection device to be tested; Collect response data of the lightning protection device under test during the impact process; After the test is completed, the lightning protection device to be tested is disconnected from the impact test circuit and restored to the normal operating system circuit.

[0011] Preferably, based on the on-site environmental data and online status data, and in conjunction with a pre-set periodic inspection plan, an offline impact test command for the existing lightning protection device is generated. The specific method is as follows: The on-site environmental data and online status data are compared with preset safety thresholds. When both the on-site environmental data and online status data are within the safe range, the offline impact test command is generated.

[0012] Preferably, the preset safety range of the on-site environmental data includes: no lightning activity, wind speed below the safe operation threshold, and temperature and humidity within the allowable operating range of the equipment; the preset safety range of the online status data includes: leakage current below the alarm threshold and lightning protection device temperature below the preset temperature threshold.

[0013] Preferably, the lightning protection device to be tested is isolated from the normal operating system, specifically including: By using the switching switch in the lightning protection device switching unit, the lightning protection device to be tested is connected to the output terminal of the impact test module and the reference ground to form a complete impact test circuit.

[0014] Preferably, the preset impact parameters include at least one of the waveform, amplitude, number of times, and interval time of the impact voltage or impact current; the impact voltage or impact current is applied to the lightning protection device under test once or multiple times according to the preset waveform and amplitude.

[0015] Secondly, the present invention provides an automatic on-site impact monitoring device for wind farms, comprising: The data acquisition module is used to collect environmental data from the wind farm site and online status data of the existing lightning protection devices in the wind farm. The control module, connected to the data acquisition module, is used to receive and analyze the environmental data and online status data, and generate offline impact test instructions for the specified lightning protection device based on the analysis results and / or remote instructions received from the remote control center. An impact testing module, connected to the control module, is used to apply impact voltage or impact current to a specified lightning protection device according to preset impact parameters under the control of the control module, and to collect impact response data. The lightning protection device switching unit is connected to the control module and the impulse test module respectively. Under the control of the control module, it is used to safely isolate the lightning protection device to be tested from the wind farm normal operation system and switch it to the test circuit of the impulse test module, and to switch it back to the normal operation state after the test is completed.

[0016] Preferably, it further includes: a communication module, connected to the control module, for enabling bidirectional transmission of data and commands between the control module and the remote control center.

[0017] Thirdly, the present invention provides an electronic device including a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, the electronic device performs the method described thereon.

[0018] Fourthly, the present invention provides a computer program product, the computer program product including computer-executable instructions, which, when executed, implement the method described.

[0019] Fifthly, the present invention provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the method described herein.

[0020] Compared with the prior art, the beneficial effects of the present invention are: This invention provides an automated on-site impact monitoring method for wind farms. By collecting on-site environmental and online status data of lightning protection devices and combining them with regular inspection plans, it automatically generates offline impact test instructions, achieving fully automated operation of the lightning protection device impact testing process and avoiding manual on-site intervention. Testing is only performed after ensuring that the environment and equipment status are within safe limits, significantly improving the safety of the testing process and preventing risks caused by weather, lightning, or equipment malfunctions. After the test, the lightning protection device is automatically restored to its normal operating circuit, without affecting the normal operation of the wind farm. This method reduces the manual operation and maintenance costs and testing difficulty of remote wind farms, supports large-scale, routine testing, and facilitates the timely detection of lightning protection device performance degradation, providing data support for reliability assessment and preventive maintenance of wind farm lightning protection systems. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the method flow involved in an embodiment of the present invention. Detailed Implementation

[0022] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0023] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0024] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0025] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0026] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0028] Example 1 This embodiment provides an automatic on-site impact monitoring method for wind farms, comprising the following steps: Step 1: Collect on-site environmental data and online status data of existing lightning protection devices at the wind farm; Step 2: Based on the on-site environmental data and online status data, and in conjunction with the preset periodic inspection plan, generate an offline impact test command for the existing lightning protection device. In this embodiment, based on the on-site environmental data and online status data, and combined with a preset periodic inspection plan, an offline impact test command for the existing lightning protection device is generated. The specific method is as follows: The on-site environmental data and online status data are compared with preset safety thresholds. When both the on-site environmental data and online status data are within the safe range, the offline impact test command is generated.

[0029] In this embodiment, the preset safe range of the on-site environmental data includes: no lightning activity, wind speed below the safe operation threshold, and temperature and humidity within the allowable operating range of the equipment.

[0030] The preset safety range for the online status data includes: leakage current below the alarm threshold and lightning protection device temperature below the preset temperature threshold.

[0031] Step 3: According to the offline impact test command, isolate the lightning protection device to be tested from the normal operating system and connect it to the impact test circuit; In this embodiment, the lightning protection device to be tested is isolated from the normal operating system, specifically including: By using the switching switch in the lightning protection device switching unit, the lightning protection device to be tested is connected to the output terminal of the impact test module and the reference ground to form a complete impact test circuit.

[0032] Step 4: Apply impulse voltage or impulse current to the lightning protection device to be tested according to the preset impulse parameters. In this embodiment, the preset impact parameters include at least one of the waveform, amplitude, number of times, and interval time of the impact voltage or impact current; the impact voltage or impact current is applied to the lightning protection device under test once or multiple times according to the preset waveform and amplitude.

[0033] Step 5: Collect response data of the lightning protection device under test during the impact process; Step 6: After the test is completed, disconnect the lightning protection device to be tested from the impact test circuit and restore it to the normal operating system circuit.

[0034] Step 7: Upload the test data and results to the remote control center via the communication module.

[0035] Example 2 This embodiment provides an automatic on-site impact monitoring device for wind farms, comprising: The data acquisition module is used to collect environmental data from the wind farm site and online status data of the existing lightning protection devices in the wind farm. In this embodiment, the data acquisition module includes a lightning monitoring sensor, a wind speed sensor, a temperature and humidity sensor, and an online monitoring sensor connected to an existing lightning protection device.

[0036] In this embodiment, the lightning monitoring sensor includes an electric field meter and a lightning locator.

[0037] The online monitoring sensors include a leakage current sensor and a temperature sensor.

[0038] The control module, connected to the data acquisition module, is used to receive and analyze the environmental data and online status data, and generate offline impact test instructions for the specified lightning protection device based on the analysis results and / or remote instructions received from the remote control center. In this embodiment, the control module adopts an industrial-grade microcontroller, PLC, or embedded microprocessor.

[0039] An impact testing module, connected to the control module, is used to apply impact voltage or impact current to a specified lightning protection device according to preset impact parameters under the control of the control module, and to collect impact response data. In this embodiment, the impact test module includes a high-voltage impact generator, an energy storage capacitor, a charging unit, a discharge circuit, and voltage and current measurement sensors.

[0040] In this embodiment, the high-voltage impulse generator is a lightning impulse voltage generator, an operational impulse voltage generator, or a corresponding current generator.

[0041] The lightning protection device switching unit is connected to the control module and the impulse test module respectively. Under the control of the control module, it is used to safely isolate the lightning protection device to be tested from the wind farm normal operation system and switch it to the test circuit of the impulse test module, and to switch it back to the normal operation state after the test is completed.

[0042] In this embodiment, the lightning protection device switching unit is a high-voltage disconnect switch, circuit breaker, or solid-state switch.

[0043] In this embodiment, the impact monitoring device further includes: Communication module: Connected to the control module, it enables bidirectional transmission of data and commands between the control module and the remote control center.

[0044] In this embodiment, the communication module adopts a 4G / 5G wireless communication module, an optical fiber communication module, or a long-distance wireless transmission module such as LoRa.

[0045] Power module: Provides a stable power supply for all modules of the device.

[0046] Example 3 This embodiment also provides a computing device. The computing device includes a bus, a processor, a memory, and a communication interface. The processor, memory, and communication interface communicate with each other via the bus. The computing device can be a server or a terminal device. It should be understood that this application does not limit the number of processors and memory in the computing device.

[0047] A bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, a bus can include a path for transmitting information between various components of a computing device (e.g., memory, processor, communication interfaces).

[0048] The processor may include any one or more of the following: central processing unit (CPU), graphics processing unit (GPU), tensor processing unit (TPU), application specific integrated circuit (ASIC), field-programmable gate array (FPGA), microprocessor (MP), or digital signal processor (DSP).

[0049] Memory can include volatile memory, such as random access memory (RAM). Processors can also include non-volatile memory. volatile memory, such as read-only memory (ROM). ROM (memory only), flash memory, hard disk drive (HDD), or solid state drive (SSD).

[0050] The memory stores executable program code, which the processor executes to implement the functions of the aforementioned units, thereby achieving, for example, the method described in Embodiment 1. That is, the memory may store instructions for the methods and functions relating to the computing device in any of the above embodiments.

[0051] The communication interface uses transceiver modules such as, but not limited to, network interface cards and transceivers to enable communication between computing devices and other devices or communication networks.

[0052] Example 4 This embodiment also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, cause the processor to perform the methods and functions of the computing device involved in any of the above embodiments.

[0053] Generally, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software, which can be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are shown and described as block diagrams, flowcharts, or represented using some other illustration, it should be understood that the blocks, apparatuses, systems, techniques, or methods described herein can be implemented as, as non-limiting examples, in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0054] Example 5 This embodiment provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, which execute in a device on a target real or virtual processor to perform the processes / methods as described above with reference to the accompanying drawings. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided among program modules as needed. The machine-executable instructions for the program modules can execute within a local or distributed device. In a distributed device, the program modules can reside in both local and remote storage media.

[0055] Computer program code used to implement the methods of this disclosure may be written in one or more programming languages. This computer program code may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, such that when executed by the computer or other programmable data processing apparatus, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be performed. The program code may be executed entirely on a computer, partially on a computer, as a stand-alone software package, partially on a computer and partially on a remote computer, or entirely on a remote computer or server.

[0056] In the context of this disclosure, computer program code or related data may be carried on any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and so on. Examples of signals may include electrical, optical, radio, sound, or other forms of propagation signals, such as carrier waves, infrared signals, etc.

[0057] Computer-readable media can be any tangible medium that contains or stores programs for or relating to an instruction execution system, apparatus, or device, or a data storage device such as a data center containing one or more available media. Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable media can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. More detailed examples of computer-readable storage media include electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0058] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An automatic on-site impact monitoring method for wind farms, characterized in that, Includes the following steps: Collect on-site environmental data and online status data of existing lightning protection devices at the wind farm; Based on the on-site environmental data and online status data, and combined with the preset periodic inspection plan, an offline impact test instruction for the existing lightning protection device is generated. According to the offline impact test command, the lightning protection device to be tested is isolated from the normal operating system and connected to the impact test circuit; According to the preset impact parameters, an impact voltage or impact current is applied to the lightning protection device to be tested; Collect response data of the lightning protection device under test during the impact process; After the test is completed, the lightning protection device to be tested is disconnected from the impact test circuit and restored to the normal operating system circuit.

2. The automatic field impact monitoring method for wind farms according to claim 1, characterized in that, Based on the aforementioned on-site environmental data and online status data, and in conjunction with a pre-set periodic inspection plan, an offline impact test command is generated for the existing lightning protection device. The specific method is as follows: The on-site environmental data and online status data are compared with preset safety thresholds. When both the on-site environmental data and online status data are within the safe range, the offline impact test command is generated.

3. The automatic on-site impact monitoring method for wind farms according to claim 2, characterized in that, The preset safety range for the on-site environmental data includes: no lightning activity, wind speed below the safe operating threshold, and temperature and humidity within the allowable operating range of the equipment; the preset safety range for the online status data includes: leakage current below the alarm threshold and lightning protection device temperature below the preset temperature threshold.

4. The automatic field impact monitoring method for wind farms according to claim 1, characterized in that, Isolate the surge protection device to be tested from the normal operating system, specifically including: By using the switching switch in the lightning protection device switching unit, the lightning protection device to be tested is connected to the output terminal of the impact test module and the reference ground to form a complete impact test circuit.

5. The automatic field impact monitoring method for wind farms according to claim 1, characterized in that, The preset impact parameters include at least one of the waveform, amplitude, number of times, and interval time of the impact voltage or impact current; the impact voltage or impact current is applied to the lightning protection device under test once or multiple times according to the preset waveform and amplitude.

6. An automatic field impact monitoring device for wind farms, characterized in that, include: The data acquisition module is used to collect environmental data from the wind farm site and online status data of the existing lightning protection devices in the wind farm. The control module, connected to the data acquisition module, is used to receive and analyze the environmental data and online status data, and generate offline impact test instructions for the specified lightning protection device based on the analysis results and / or remote instructions received from the remote control center. An impact testing module, connected to the control module, is used to apply impact voltage or impact current to a specified lightning protection device according to preset impact parameters under the control of the control module, and to collect impact response data. The lightning protection device switching unit is connected to the control module and the impulse test module respectively. Under the control of the control module, it is used to safely isolate the lightning protection device to be tested from the wind farm normal operation system and switch it to the test circuit of the impulse test module, and to switch it back to the normal operation state after the test is completed.

7. An automatic field impact monitoring device for wind farms according to claim 6, characterized in that, Also includes: A communication module, connected to the control module, is used to enable bidirectional transmission of data and commands between the control module and the remote control center.

8. An electronic device, characterized in that, It includes a processor and a memory, the memory storing computer instructions that, when executed by the processor, cause the electronic device to perform the method of any one of claims 1 to 5.

9. A computer program product, characterized in that, The computer program product includes computer-executable instructions that, when executed, implement the method of any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions that, when executed by a processor, implement the method of any one of claims 1 to 5.

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