Working environment adaptability evaluation method of offshore wind turbine generator sensor

Abstract

The invention belongs to the technical field of offshore wind power, and particularly relates to a working environment adaptability evaluation method of an offshore wind turbine generator sensor. Classifying the offshore wind turbine generator sensors into different environmental adaptability grades according to the mounting parts of the offshore wind turbine generator sensors; determining environmental factors needing to be considered according to the corresponding working environment characteristics for the offshore wind turbine generator sensors of each environmental adaptability level; according to the determined environmental factors, carrying out environmental adaptability test on the sensor of the offshore wind turbine generator; and evaluating the performance of the sensor of the offshore wind turbine generator under each environmental factor according to a test result, and determining whether the set environmental adaptability grade requirement is met or not based on the performance. The sensors of the offshore wind turbine generator are classified into different environmental adaptability grades according to the installation parts, and the environmental factors needing to be considered are determined according to the working environment characteristics of each grade, so that the evaluation process can be ensured to be more accurate.

Description

Technical Field

[0001] This invention belongs to the field of offshore wind power technology, specifically relating to a method for evaluating the working environment adaptability of offshore wind turbine sensors. Background Technology

[0002] With increasing global emphasis on renewable energy and heightened environmental awareness, offshore wind power, as a clean and renewable energy source, has gained widespread attention and application. However, the environment in which offshore wind turbines operate is complex and variable, including extreme weather and marine conditions such as salt spray corrosion, high humidity, strong winds, large waves, and significant temperature variations. These conditions place extremely high demands on the environmental adaptability of sensors within the wind turbines. As a crucial component of offshore wind turbines, the stability and reliability of sensor performance directly impact the operational efficiency and safety of wind farms. Therefore, assessing the environmental adaptability of offshore wind turbine sensors is of paramount importance. Traditional assessment methods often rely on uniform testing standards, neglecting the potential performance differences between sensors due to variations in installation location and operating environment. This leads to inaccurate and unreliable assessment results. Summary of the Invention

[0003] The purpose of this invention is to provide a method for evaluating the working environment adaptability of offshore wind turbine sensors, so as to solve the problem that the adaptability of offshore wind turbine sensors cannot be accurately evaluated in the prior art.

[0004] To address the aforementioned issues and improve the accuracy and relevance of the assessment, this proposal suggests a method for evaluating the environmental adaptability of offshore wind turbine sensors. This method comprehensively considers the sensor's installation location, operating environment characteristics, and various environmental factors. Through environmental adaptability testing, it comprehensively evaluates the sensor's performance under various environmental conditions, thereby ensuring that the sensor can maintain stable performance in the complex and ever-changing offshore environment and providing strong support for the safe and stable operation of wind farms.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for evaluating the environmental adaptability of sensors for offshore wind turbines includes the following steps:

[0007] Based on the installation location of the sensors in each offshore wind turbine, the sensors of each offshore wind turbine are classified into different environmental adaptability levels.

[0008] For each environmental adaptability level of the offshore wind turbine sensor, the environmental factors to be considered are determined based on the corresponding working environment characteristics.

[0009] Environmental adaptability tests were conducted on the sensors of offshore wind turbines based on the identified environmental factors.

[0010] The performance of the offshore wind turbine sensors under various environmental factors is evaluated based on the test results, and it is determined whether the performance meets the set environmental adaptability level requirements.

[0011] Furthermore, based on the installation location of the sensors on each offshore wind turbine, the sensors for each offshore wind turbine are classified into different environmental adaptability levels, including:

[0012] Sensors directly exposed to the external environment are classified as C5-M level;

[0013] Sensors located inside blades, nacelles, towers, and foundations are classified as C4 level.

[0014] Furthermore, for each environmental adaptability level of the offshore wind turbine sensor, the environmental factors to be considered are determined based on the corresponding operating environment characteristics, including:

[0015] For each environmental adaptability level, determine the sensor's operating environment characteristics under the current environmental adaptability level;

[0016] Based on the characteristics of the working environment, all environmental factors that affect sensor performance are listed, and the environmental factors that need to be considered are selected from all environmental factors.

[0017] Furthermore, environmental adaptability tests were conducted on the sensors of the offshore wind turbine based on the identified environmental factors, including:

[0018] Based on the collected environmental factors, a detailed environmental adaptability test plan was developed, which included low temperature test, high temperature test, temperature change test, alternating damp heat test, constant damp heat test, salt spray test, mold test, vibration test, tilt and sway test, electromagnetic compatibility test, and enclosure protection test.

[0019] Furthermore, C5-M level sensors include anemometers, lidar, sonar, acoustic Doppler wave velocity profilers, and audio acquisition devices.

[0020] Furthermore, C4-level sensors include vibration sensors, stress-strain sensors, bolt preload sensors, oil quality monitoring sensors, insulation monitoring sensors, shaft current monitoring sensors, displacement sensors, and current-voltage sensors.

[0021] Furthermore, after determining whether the performance meets the set environmental adaptability level requirements, the process also includes:

[0022] Based on the characteristics of the sensor's operating environment and test results, corresponding protective measures and improvement suggestions are proposed.

[0023] Further environmental factors include: sea breeze intensity, seawater salinity, humidity, temperature variation range, and electromagnetic interference.

[0024] Further, corresponding protective measures and improvement suggestions include: adjusting sensor design, optimizing material selection, and strengthening protective measures.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] The working environment adaptability assessment method provided in this solution classifies offshore wind turbine sensors into different environmental adaptability levels according to their installation location, and determines the environmental factors to be considered for the working environment characteristics of each level. This ensures a more accurate assessment process, fully considers the specific working environment differences faced by different sensors, and thus improves the relevance and accuracy of the assessment.

[0027] The working environment adaptability assessment method provided in this solution can comprehensively understand the performance of offshore wind turbine sensors under various environmental factors through environmental adaptability testing. Based on the test results, deficiencies in sensor design can be identified in a timely manner, and targeted optimizations can be made, which helps to improve the reliability and stability of the sensors. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0029] Figure 1 This is a flowchart illustrating a method for assessing the environmental adaptability of sensors for offshore wind turbines according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the environmental characteristics of the offshore wind turbine in an embodiment of the present invention. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0032] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0033] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Furthermore, 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 indicated technical features. 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, unless otherwise stated, "a plurality of" means two or more. It should be noted in the description of this invention that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] like Figure 1 As shown, this solution provides a method for evaluating the environmental adaptability of offshore wind turbine sensors, including the following steps:

[0036] S1. Based on the installation location of the sensors of each offshore wind turbine, the sensors of each offshore wind turbine are classified into different environmental adaptability levels.

[0037] S2. For each environmental adaptability level of the offshore wind turbine sensor, determine the environmental factors to be considered based on the corresponding working environment characteristics.

[0038] S3. Conduct environmental adaptability tests on the sensors of offshore wind turbines based on the determined environmental factors;

[0039] S4. Evaluate the performance of the offshore wind turbine sensors under various environmental factors based on the test results, and determine whether they meet the set environmental adaptability level requirements based on the performance.

[0040] This solution categorizes sensors into different environmental adaptability levels based on their installation location and operating environment characteristics, and identifies the environmental factors to be considered for each level. Environmental adaptability testing provides a comprehensive understanding of the sensor's performance under various environmental factors, and the test results assess whether it meets the requirements of the defined environmental adaptability level. This not only improves the accuracy and reliability of the assessment but also helps optimize sensor design and selection, thereby enhancing the operational efficiency and safety of wind farms.

[0041] In an optional embodiment, a method for assessing the environmental adaptability of an offshore wind turbine sensor includes the following steps:

[0042] S10. Based on the installation location of the sensors of each offshore wind turbine, classify the sensors of each offshore wind turbine into different environmental adaptability levels.

[0043] Specifically, this scheme classifies sensors directly exposed to the external environment as C5-M level; and sensors located inside blades, nacelles, towers, and foundations as C4 level.

[0044] As examples, C5-M grade sensors include anemometers, lidar, sonar, acoustic Doppler wave current profilers, and audio acquisition devices. C4 grade sensors include vibration sensors, stress-strain sensors, bolt preload sensors, oil quality monitoring sensors, insulation monitoring sensors, shaft current monitoring sensors, displacement sensors, and current-voltage sensors.

[0045] S20. For each environmental adaptability level of the offshore wind turbine sensor, determine the environmental factors to be considered based on the corresponding working environment characteristics.

[0046] like Figure 2 As shown, the environmental characteristics of offshore wind turbines mainly include: meteorological environment, hydrological environment, mechanical environment, chemical environment, biological environment, and electromagnetic environment. The meteorological environment includes temperature, humidity, precipitation, wind force, solar radiation, typhoons, and lightning; the hydrological environment includes seawater temperature, maximum salinity, maximum wave height, and maximum tidal range; the mechanical environment includes dust, vibration, tilting, and impact; the chemical environment includes salt spray and sulfur dioxide; the biological environment includes mold, fish, birds, seaweed, and moss; and the electromagnetic environment includes magnetic field strength, electric field strength, and electrostatic discharge.

[0047] Remote areas, low-pollution areas, and the interiors of heated buildings are classified as C1 and C2 environments; moderately polluted areas, such as production areas with high sulfur dioxide content and high humidity, are classified as C3 environments; industrial areas, coastal areas, and chemical plants, or areas with high levels of pollution or salt spray, can be considered as C4 environments, such as thermal power plants and coastal buildings; high-humidity industrial areas and severely polluted areas can be identified as C5-Ⅰ industrial corrosion environments, and high humidity plus high salinity is defined as C5-M marine corrosion environments.

[0048] Specifically, for each environmental adaptability level, the working environment characteristics of the sensor under the current environmental adaptability level are determined; based on the working environment characteristics, all environmental factors affecting sensor performance are listed, and the environmental factors that need to be considered are selected from all environmental factors.

[0049] As an example, the environmental factors considered in this plan include: sea breeze intensity, seawater salinity, humidity, temperature variation range, and electromagnetic interference.

[0050] S30. Conduct environmental adaptability tests on the sensors of offshore wind turbines based on the determined environmental factors.

[0051] Specifically, based on the collected environmental factors, a detailed environmental adaptability test plan is developed, which includes low temperature test, high temperature test, temperature change test, alternating damp heat test, constant damp heat test, salt spray test, mold test, vibration test, tilt and sway test, electromagnetic compatibility test, and enclosure protection test.

[0052] The following experiments will be conducted in this plan:

[0053] (1) Low temperature test: to verify the adaptability of the sample under low temperature conditions when it is in service in the Bohai and Yellow Seas. The test shall be conducted in accordance with the provisions of test Ab and Ad in GB / T2423.1-2008.

[0054] (2) High temperature test: to verify the adaptability of the sample under high temperature conditions, and to conduct the test according to the requirements of test Bb and Bd in GB / T 2423.2-2008.

[0055] (3) Temperature change test: to verify the ability of the sample to withstand rapid changes in ambient temperature, and to be carried out in accordance with the requirements of test Nb in GB / T 2423.22-2012.

[0056] (4) Alternating damp heat test: used to determine the adaptability of the specimen to conditions of high humidity and temperature cycling and condensation usually occurs on the surface of the specimen, and shall be carried out in accordance with the provisions of GB / T 2423.4-2008.

[0057] (5) Constant damp heat test: used to determine the adaptability of the sample to a humid environment, as specified in GB / T 2423.3-2006.

[0058] (6) Alternating salt spray test: to assess the corrosion resistance of the sample, and to be carried out in accordance with the test Kb specification of GB / T 2423.18. This method requires fewer test resources, larger equipment size, and higher cost.

[0059] (7) Salt spray test: to assess the corrosion resistance of the sample. For metal electroplated parts and chemically treated parts exposed to air, the test shall be conducted in accordance with the test Ka in GB / T 2423.17-2008.

[0060] (8) Mold test: The degree of mold growth and its impact on the sample under mold growth conditions shall be assessed in accordance with the provisions of GB / T2423.16-2008.

[0061] (9) Vibration test: The test specimen is assessed for its adaptability to the vibration environment during transportation, and is conducted in accordance with the provisions of GB / T 2423.10-2008.

[0062] (10) Tilt and rock test: The test shall be conducted in accordance with the provisions of GB / T 2423.101-2008 to assess the adaptability of the test specimen to the tilt and rock environment during transportation.

[0063] (11) Electromagnetic compatibility test: Verify the electromagnetic compatibility of electrical and electronic equipment during actual operation, in accordance with the provisions of GB / T12668.3-2012.

[0064] (12) Lightning strike test: The test shall assess the adaptability of the test specimen to the lightning strike environment and shall be conducted in accordance with the provisions of NB / T 31039-2012, NB / T31041-2012, NB / T 31042-2012 and NB / T 31043-2012.

[0065] (13) Enclosure protection test: The protective performance of the enclosure structure shall be assessed in accordance with the provisions of GB 4208-2008.

[0066] S40. Evaluate the performance of the offshore wind turbine sensors under various environmental factors based on the test results, and determine whether they meet the set environmental adaptability level requirements based on the performance.

[0067] In the preferred embodiment, after determining whether the sensor meets the set environmental adaptability level requirements based on its performance, the following steps are also included: proposing corresponding protective measures and improvement suggestions based on the characteristics of the sensor's operating environment and test results. For example, adjusting the sensor design, optimizing material selection, and strengthening protective measures.

[0068] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A method for evaluating the environmental adaptability of sensors for offshore wind turbines, characterized in that, Includes the following steps: Based on the installation location of the sensors in each offshore wind turbine, the sensors of each offshore wind turbine are classified into different environmental adaptability levels. For each environmental adaptability level of the offshore wind turbine sensor, the environmental factors to be considered are determined based on the corresponding working environment characteristics. Environmental adaptability tests were conducted on the sensors of offshore wind turbines based on the identified environmental factors. The performance of the offshore wind turbine sensors under various environmental factors is evaluated based on the test results, and it is determined whether the performance meets the set environmental adaptability level requirements.

2. The method for evaluating the working environment adaptability of offshore wind turbine sensors according to claim 1, characterized in that, Based on the installation location of the sensors on each offshore wind turbine, the sensors for each offshore wind turbine are classified into different environmental adaptability levels, including: Sensors directly exposed to the external environment are classified as C5-M level; Sensors located inside blades, nacelles, towers, and foundations are classified as C4 level.

3. The method for evaluating the working environment adaptability of offshore wind turbine sensors according to claim 1, characterized in that, For sensors of offshore wind turbines at each environmental adaptability level, the environmental factors to be considered are determined based on the characteristics of the corresponding operating environment, including: For each environmental adaptability level, determine the sensor's operating environment characteristics under the current environmental adaptability level; Based on the characteristics of the working environment, all environmental factors that affect sensor performance are listed, and the environmental factors that need to be considered are selected from all environmental factors.

4. The method for evaluating the working environment adaptability of offshore wind turbine sensors according to claim 1, characterized in that, Environmental adaptability tests were conducted on the sensors of offshore wind turbines based on the identified environmental factors, including: Based on the collected environmental factors, a detailed environmental adaptability test plan was developed, which included low temperature test, high temperature test, temperature change test, alternating damp heat test, constant damp heat test, salt spray test, mold test, vibration test, tilt and sway test, electromagnetic compatibility test, and enclosure protection test.

5. The method for evaluating the environmental adaptability of offshore wind turbine sensors according to claim 2, characterized in that, C5-M level sensors include anemometers, lidar, sonar, acoustic Doppler wave current profilers, and audio acquisition devices.

6. The method for evaluating the working environment adaptability of offshore wind turbine sensors according to claim 2, characterized in that, C4 grade sensors include vibration sensors, stress-strain sensors, bolt preload sensors, oil quality monitoring sensors, insulation monitoring sensors, shaft current monitoring sensors, displacement sensors, and current-voltage sensors.

7. The method for evaluating the environmental adaptability of offshore wind turbine sensors according to claim 2, characterized in that, After determining whether the performance meets the set environmental adaptability level requirements, the process also includes: Based on the characteristics of the sensor's operating environment and test results, corresponding protective measures and improvement suggestions are proposed.

8. The method for evaluating the environmental adaptability of offshore wind turbine sensors according to claim 3, characterized in that, Environmental factors include: sea breeze intensity, seawater salinity, humidity, temperature variation range, and electromagnetic interference.

9. The method for evaluating the working environment adaptability of offshore wind turbine sensors according to claim 7, characterized in that, Corresponding protective measures and improvement suggestions include: adjusting sensor design, optimizing material selection, and strengthening protective measures.

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