Anemometer tower

Abstract

The utility model provides an anemometer tower, which relates to the technical field of wind power, solves the problem that after the anemometer tower is installed, the anemometer tower is not suitable and needs to be installed again, and adopts the technical scheme that the anemometer tower comprises a tower body 8, stay wires 6 are arranged on the periphery of the tower body 8, one end of each stay wire 6 is temporarily connected with the ground, and the other end of each stay wire 6 is fixed with the tower body 8. The fixing positions of the stay wires 6 are respectively arranged at different height positions of the tower body 8 from top to bottom; a supporting table 9 is arranged at the connecting position of the tower body 8 and the ground, three fourths of a table body of the supporting table 9 is buried underground, and the other one fourth of the table body of the supporting table 9 is fixed to the tower body 8. The outer surface of the tower body 8 is respectively connected with a wind indicator 1 and an anemograph 2 through a bracket 7, and the wind indicator 1 and the anemograph 2 are respectively arranged at different height positions of the tower body 8 from top to bottom. According to the scheme, normal testing is not affected, a temporary fixing mode is adopted, moving of the anemometer tower is facilitated, and time and labor are not wasted even if it is found that a place needs to be changed after installation and then excavation and moving-out are conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to an anemometer tower. Background Art

[0002] In recent years, with the growth of installed capacity of wind farms, the proportion of new energy power generation has gradually increased, and the development of new energy power generation, especially wind power generation, has received extensive attention. Developing wind power has become an important way to reduce the national economy's dependence on fossil energy, solve the contradiction between energy production and consumption, and reduce greenhouse gas emissions to maintain ecological balance. With the continuous increase of the dual pressures of resources and the environment, developing wind power has become the future development direction of energy utilization in China and even the world.

[0003] During the operation of a wind farm, as the basic data detection equipment for the wind resources of the wind farm, the anemometer tower is of great significance for the wind resource assessment of the wind farm.

[0004] An anemometer tower is a device for measuring wind energy parameters, which can collect wind resource data. The anemometer tower is mainly erected in the target wind farm to better analyze the actual situation of the wind energy resources in the wind farm. Therefore, there are also many types of anemometer towers on the market, which can be selected according to different usage environments.

[0005] The purpose of setting up an anemometer tower is to accurately reflect the wind resource situation at the future positions of the wind turbines in the wind farm. The surrounding environment of the erected anemometer tower should be similar to the environment of the wind turbine positions. The environmental similarity mainly refers to two aspects: atmospheric environment similarity and terrain similarity. Atmospheric environment similarity means that the overall regional wind conditions are similar and the atmospheric stability conditions are similar; terrain similarity refers to terrain complexity, altitude and surrounding conditions, background roughness conditions, and the distance from the roughness change line. The above two aspects of similarity criteria are the basic basis for the site selection of anemometer towers in the early stage of wind farms.

[0006] Generally speaking, the area used for wind farm planning is within dozens of kilometers, and there are a large number of wind turbines arranged within the area. A small number of anemometer towers are difficult to represent most of the wind turbines. Therefore, when setting up anemometer towers, from a microscopic perspective, in addition to environmental similarity, the distance between the anemometer tower and the wind turbine should be as close as possible. Especially in extremely complex mountainous terrains, affected by airflow distortion, if the distance between the anemometer tower and the wind turbine position is too far, the accuracy of the anemometer tower's determination of the wind conditions in the wind farm will be greatly reduced.

[0007] However, due to the large scale of wind power project development and the large number of projects, for large-scale wind farms, the field area contains hundreds of wind turbines. Selecting appropriate anemometer tower points to represent the wind resource situation of the surrounding wind turbine positions is extremely cumbersome and complex. Especially in complex mountainous or hilly terrains, engineers also need to consider the representativeness of the anemometer tower in the vertical distance and comprehensively select the anemometer tower installation points.

[0008] After the anemometer tower is installed, it usually does not change. If it is found inappropriate after installation, a large amount of energy is required to excavate and remove the installed anemometer tower and move it to other relatively correct positions. Therefore, how to select the location of the anemometer tower is particularly important. In the actual application process, it is impossible to ensure that the location selection of the anemometer tower is 100% correct. Therefore, the event of excavation and removal after installation will still occur, resulting in time-consuming and laborious work and affecting the construction period. Therefore, this is a problem that needs to be solved. Utility Model Content

[0009] To solve the above technical problems, the purpose of the present utility model is to provide an anemometer tower, and the technical solution adopted is as follows:

[0010] A tower body (8), with guy wires (6) around the tower body (8). One end of the guy wire (6) is temporarily fixed to the ground, and the other end is fixed to the tower body (8). The fixing positions of the guy wires (6) are respectively arranged at different height positions of the tower body (8) from top to bottom;

[0011] At the connection between the tower body (8) and the ground, there is a support platform (9). Three-quarters of the body of the support platform (9) is buried underground, and the other one-quarter of the exposed body is fixed to the tower body (8);

[0012] The outer surface of the tower body (8) is respectively connected with a wind vane (1) and an anemometer (2) through brackets (7). The wind vane (1) and the anemometer (2) are respectively arranged at different height positions of the tower body (8) from top to bottom.

[0013] Optionally, in some embodiments, the top of the tower body (8) has a lightning rod.

[0014] Optionally, in some embodiments, it further includes: a thermometer (3) and a barometric pressure sensor (4), and the thermometer (3) and the barometric pressure sensor (4) are respectively arranged on the tower body (8).

[0015] Optionally, in some embodiments, the height intervals between the different height positions are 20 meters, and the anemometers (2) are distributed at different heights.

[0016] Optionally, in some embodiments, the guy wires (6) are symmetrical to each other.

[0017] Optionally, in some embodiments, the tower body (8) is a truss tower.

[0018] Optionally, in some embodiments, it further includes: a recorder (5), and the recorder (5) is arranged on the tower body (8) to collect the data of the wind vane (1) and the anemometer (2) and store them in the memory card of the recorder (5).

[0019] Optionally, in some embodiments, the recorder (5) also records the data of the thermometer (3) and the barometric pressure sensor (4), and stores them in the memory card of the recorder (5).

[0020] Optionally, in some embodiments, the recorder sends the data stored in the memory card to the recipient in a wireless manner, and the data is encrypted data.

[0021] Optionally, in some embodiments, the recorder (5) obtains the data of the wind vane (1) and the anemometer (2) according to a preset sampling interval, and determines the average value, standard deviation value, maximum value, and minimum value of the obtained data within a preset period and stores them.

[0022] The above technical solution of the present utility model has at least the following beneficial technical effects:

[0023] In the technical solution of the embodiment of the present utility model, three-quarters of the body of the support platform 9 is buried underground, and the other one-quarter of the exposed body is fixed to the tower body 8. Therefore, it can provide fixed support for the tower body 8, but can be removed from the soil at any time. Moreover, there are guy wires 6 around the tower body 8. One end of the guy wire 6 is temporarily fixed to the ground, and the other end is fixed to the tower body 8. The fixed positions of the guy wire 6 are arranged at different height positions of the tower body 8 from top to bottom. Therefore, in addition to the fixation of the support platform 9, the tower body 8 also has multiple fixations of the guy wires 6, which can provide effective temporary fixed support for the wind measurement tower. At this time, the wind vane 1 and the anemometer 2 in the wind measurement tower can work to provide relevant data. If the obtained results are not satisfactory, the wind measurement tower can be replaced at a different location by using the guy wires and the support platform. Since it is a temporary fixation, it is very convenient to remove the wind measurement tower. Even if it is found that the location needs to be changed after installation and then excavated and removed, it does not take much time and effort. If it is determined that the selected location is correct, the temporary fixation can be changed to a permanent fixation, the support platform 9 can be strengthened, and the guy wire 6 can be withdrawn. Therefore, the temporary fixation solution of the present application does not require a lot of energy to excavate and remove the installed wind measurement tower even if it is found to be inappropriate after installation. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 is a schematic diagram of a wind measurement tower provided by an embodiment of the present utility model.

[0026] Figure 2 It is a schematic diagram of the wind speed result of the current anemometer tower provided by the embodiment of the present utility model.

[0027] Figure 3 It is a schematic diagram of the measured wind speed statistics of the anemometer tower provided by the embodiment of the present utility model.

[0028] Figure 4 It is a wind speed statistical chart of the anemometer tower after data extension provided by the embodiment of the present utility model.

[0029] Figure 5 It is a rationality inspection chart of the anemometer tower provided by the embodiment of the present utility model.

[0030] Figure 6 Schematic diagram of the correlation of wind measurement data at different heights of the anemometer tower

[0031] Among them, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names in

[0032] 1 - wind vane, 2 - anemometer, 3 - thermometer, 4 - barometric pressure sensor, 5 - recorder, 6 - guy wire, 7 - support, 8 - tower body, 9 - support platform. Specific implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0035] If there is a description involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature; the technical solutions between the various embodiments can be combined with each other based on what can be achieved by those of ordinary skill in the art.

[0036] When referring to A and / or B in the embodiments of the present application, it means all three cases of A, B, and A and B.

[0037] It should be noted that the sequence numbers mentioned in this application do not necessarily represent strict execution in the actual implementation process. The sequence numbers are used to distinguish each step for easy explanation and to prevent confusion.

[0038] The schematic diagram of the layer structure according to the embodiment of the present invention is shown in the accompanying drawings. These figures are not drawn to scale, and for the purpose of clarity, some details are enlarged and some details may be omitted. The various regions, layer shapes, relative sizes, and positional relationships shown in the figures are merely exemplary. In practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art can design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0039] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] The area for wind farm planning is within dozens of kilometers. There are a large number of wind turbines arranged within the area, and a small number of wind measurement towers are difficult to represent most of the wind turbines. Therefore, from a microscopic perspective, when setting up wind measurement towers, in addition to similar environments, the distance between the wind measurement towers and the wind turbines should be as close as possible. Especially in extremely complex mountain terrains, affected by airflow distortion, if the distance between the wind measurement tower and the wind turbine position is too far, the accuracy of the wind measurement tower in determining the wind conditions of the wind farm will be greatly reduced.

[0041] However, due to the large scale of wind power project development and the large number of projects, for large-scale wind farms, there are hundreds of wind turbines in the field area. Selecting appropriate wind measurement tower positions to represent the wind resource conditions of surrounding wind turbine positions is extremely cumbersome and complex. Especially in complex mountain or hilly terrains, engineers also need to consider the representativeness of the wind measurement tower in the vertical distance and comprehensively select the positions for setting up the wind measurement towers.

[0042] After the wind measurement tower is installed, it usually will not be changed. If it is found inappropriate after installation, a large amount of energy will be consumed to excavate and remove the installed wind measurement tower and move it to other relatively correct positions. Therefore, how to select the location of the wind measurement tower is particularly important. In the actual application process, it is impossible to ensure that the location selection of the wind measurement tower is 100% correct. Therefore, there will still be events of excavation and removal after installation, resulting in time-consuming, laborious, and affecting the construction period. Therefore, this is a problem that needs to be solved.

[0043] To solve the above technical problems, the embodiment of the present invention provides a wind measurement tower, including:

[0044] Tower body 8, with guy wires 6 around the tower body 8. One end of each guy wire 6 is temporarily fixed to the ground, and the other end is fixed to the tower body 8. The fixing positions of the guy wires 6 are arranged at different height positions of the tower body 8 from top to bottom;

[0045] At the connection between the tower body 8 and the ground, there is a support platform 9. Three-quarters of the body of the support platform 9 is buried underground, and the other one-quarter of the exposed body is fixed to the tower body 8;

[0046] On the outer surface of the tower body 8, a wind vane 1 and an anemometer 2 are respectively connected through brackets 7. The wind vane 1 and the anemometer 2 are arranged at different height positions of the tower body 8 from top to bottom.

[0047] In the technical solution of the embodiment of the present utility model, three-quarters of the body of the support platform 9 is buried underground, and the other one-quarter of the exposed body is fixed to the tower body 8. Therefore, it can provide a fixed support for the tower body 8, but can also be removed from the soil at any time. Moreover, there are guy wires 6 around the tower body 8. One end of each guy wire 6 is temporarily fixed to the ground, and the other end is fixed to the tower body 8. The fixing positions of the guy wires 6 are arranged at different height positions of the tower body 8 from top to bottom. Therefore, in addition to the fixation of the support platform 9, the tower body 8 also has multiple fixations of the guy wires 6, which can provide effective temporary fixed support for the wind measurement tower. At this time, the wind vane 1 and the anemometer 2 in the wind measurement tower can work to provide relevant data. If the obtained result is not satisfactory, the wind measurement tower can be relocated using the guy wires and the support platform. Since it is a temporary fixation, it is very convenient to remove the wind measurement tower. Even if it is found that the location needs to be changed after installation and then excavated and removed, it is not time-consuming or laborious. If it is determined that the selected location is correct, the temporary fixation can be changed to a permanent fixation by strengthening the support platform 9 and removing the guy wires 6. Therefore, in the temporary fixation solution of this application, even if it is found to be inappropriate after installation, it is not necessary to spend a lot of energy to excavate and remove the installed wind measurement tower.

[0048] Optionally, in some embodiments, at the top of the tower body 8, there is a lightning rod.

[0049] Optionally, in some embodiments, it further includes: a thermometer 3 and a barometric pressure sensor 4, which are respectively arranged on the tower body 8.

[0050] Optionally, in some embodiments, the height interval between the different height positions is 20 meters, and the anemometer 2 is distributed at different heights.

[0051] Optionally, in some embodiments, the guy wires 6 are symmetrical to each other.

[0052] Optionally, in some embodiments, the tower body 8 is a truss tower.

[0053] Optionally, in some embodiments, it further includes: a recorder 5 disposed on the tower body 8, collecting data of the wind vane 1 and the anemometer 2, and storing them in the memory card of the recorder 5.

[0054] Optionally, in some embodiments, the recorder 5 also records data of the thermometer 3 and the barometric pressure sensor 4, and stores them in the memory card of the recorder 5.

[0055] Optionally, in some embodiments, the recorder sends the data stored in the memory card to the receiving party in a wireless manner, and the data is encrypted data.

[0056] Optionally, in some embodiments, the recorder 5 acquires data of the wind vane 1 and the anemometer 2 according to a preset sampling interval, and determines the average value, standard deviation value, maximum value, and minimum value of the acquired data within a preset period and stores them.

[0057] To determine whether the current temporary fixing method for wind measurement is feasible, the current wind measurement tower is tested.

[0058] The ERA5 data closest to the wind measurement tower collected this time has a time period from 1:00 on January 1, 1981 to 23:00 on July 31, 2023, and the latitude and longitude coordinates are N48.8, E130.3. This test intends to use the wind measurement tower data and the data in the same time period of ERA5 for correlation analysis, establish a correlation relationship formula, and deduce the wind measurement tower data between 0:00 on August 16, 2022 and 23:00 on August 16, 2023. Do the correlation between the ERA5 wind speed at 100 m height and the wind measurement tower wind speed Figure 2 Shown as follows.

[0059] Statistical analysis of the measured wind speed is carried out to obtain the measured wind speed statistical table as Figure 3 shown, where the unit is m / s.

[0060] During the actual measurement process, statistical analysis of the wind speed after data extension is carried out to obtain the results as Figure 4 shown, where the unit is m / s.

[0061] The rationality of the wind measurement tower is inspected to obtain the wind measurement tower rationality inspection chart as Figure 5 shown. According to Figure 5 it can be seen that there are relatively few unreasonable data at each height of this wind measurement tower, and the integrity rate is above 90%, meeting the use requirements. Therefore, it can be determined that the currently temporarily installed wind measurement tower is effective and there is no unreasonable situation.

[0062] Carry out correlation analysis on the data between different heights of the wind measurement towers, draw a schematic diagram of the correlation relationship of the wind measurement data at different heights of the wind measurement towers, and obtain the correlation equation. The results are as Figure 6as shown

[0063] According to Figure 6 From the correlation diagram, it can be seen that the correlation of the current anemometer tower at high altitudes is good, while that at low altitudes is average. After analysis, this may be caused by the obstruction of low-rise buildings, trees, etc., which is related to the current environment. Moreover, the obstruction of low-rise buildings, trees, etc. cannot be changed. Even if other locations are selected, the same situation will occur, indicating that the location of the current anemometer tower is feasible and can be temporarily fixed and then changed to permanent fixation.

[0064] Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0065] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A wind measurement tower, characterized in that: include: A tower body (8), wherein the tower body (8) has a tension wire (6) around it, one end of the tension wire (6) is temporarily fixed to the ground, and the other end is fixed to the tower body (8), and the fixing positions of the tension wire (6) are arranged at different height positions of the tower body (8) from top to bottom; A support platform (9) is provided at the connection point between the tower body (8) and the ground, wherein three quarters of the support platform (9) is buried underground, and the other exposed quarter is fixed to the tower body (8); The outer surface of the tower body (8) is respectively connected to a wind vane (1) and an anemometer (2) via a bracket (7); the wind vane (1) and the anemometer (2) are respectively arranged at different heights of the tower body (8) from top to bottom; a thermometer (3) and an air pressure sensor (4), wherein the thermometer (3) and the air pressure sensor (4) are respectively arranged on the tower body (8); A recorder (5), the recorder (5) is arranged on the tower body (8), collects data from the wind vane (1) and the anemometer (2), and stores the data in a memory card of the recorder (5).

2. The wind tower according to claim 1, characterized in that: The top of the tower body (8) is provided with a lightning rod.

3. The wind tower according to claim 1, characterized in that: The different height positions are spaced apart from each other by 20 meters, and the anemometers (2) are distributed at different heights.

4. The wind tower according to claim 1, characterized in that: The pull wires (6) are symmetrical to each other.

5. The wind tower according to claim 1, characterized in that: The tower body (8) is a lattice-type tower.

6. The wind tower according to claim 5, characterized in that: The recorder (5) also records the data of the thermometer (3) and the air pressure sensor (4), and stores the data in a memory card of the recorder (5).

7. The wind tower according to claim 6, characterized in that: The recorder sends the data stored in the memory card to the receiver in a wireless manner, and the data is encrypted data.

8. The wind tower according to claim 6, characterized in that: The recorder (5) acquires data from the wind vane (1) and the anemometer (2) according to a preset sampling interval, and determines and stores the average value, standard deviation value, maximum value, and minimum value of the data acquired within a preset period of time.

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