CN218272351U - Wind pressure type prepositive wind measuring system - Google Patents
Wind pressure type prepositive wind measuring system Download PDFInfo
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- CN218272351U CN218272351U CN202122918482.7U CN202122918482U CN218272351U CN 218272351 U CN218272351 U CN 218272351U CN 202122918482 U CN202122918482 U CN 202122918482U CN 218272351 U CN218272351 U CN 218272351U
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Abstract
The utility model discloses a leading anemometry system of windage formula belongs to anemometry technical field. The wind pressure type wind speed measuring device comprises a wind pressure type wind speed measuring device, a wind direction measuring device, a signal processing unit and a signal transmission unit; wind pressure formula wind speed measuring device passes through the installation component to be installed in the central position in the wheel hub kuppe outside, and wind direction measuring device installs in the cabin top, and wind pressure formula wind speed measuring device and wind direction measuring device are all just to the incoming flow direction and be connected with signal processing unit respectively, and signal processing unit is connected with signal transmission unit, and signal transmission unit connects to the host computer unit. The wind speed measured by the system is the real incoming flow wind speed which is not influenced by the acting of the blades, the accurate wind alignment of wind speed measurement can be realized by using the fan yaw system, the complex processes of measurement, calculation and fitting of a transfer function of a cabin can be omitted, the measured incoming flow wind speed can provide powerful support for the control strategy optimization and the generated energy promotion of a follow-up fan, and the system has a good application prospect.
Description
Technical Field
The utility model belongs to the technical field of the anemometry, concretely relates to leading anemometry system of windpressure formula.
Background
In recent years, with the rapid development of the wind power industry, the accurate evaluation of the performance of the fan, the power forecast, the life extension of the fan and the like all put high requirements on the accuracy of the measurement of the incoming flow wind speed.
However, due to technical limitations, there is no method for directly measuring the incoming wind speed, and the wind speed is generally measured by an anemometer installed on the nacelle, but the wind speed measured at this position is the wind speed after the blade performs work, and is greatly different from the incoming wind speed.
At present, the common practice is to perform more than one month of simultaneous measurement by using a surface laser radar and a cabin anemometer, and fit the measurement into a cabin transfer function, so as to reversely push the cabin wind speed to the incoming flow wind speed. However, such a method has high time cost, high labor cost and high economic cost, and generally, transfer function fitting is difficult to perform from machine position to machine position, and a large error still exists.
Disclosure of Invention
In order to solve the problem, the utility model aims to provide a leading anemometry system of atmospheric pressure formula, structural design is reasonable, lay portably, can measure the incoming flow wind speed effectively, reduces measuring error.
The utility model discloses a realize through following technical scheme:
the utility model discloses a wind pressure type preposed wind measuring system, which comprises a wind pressure type wind speed measuring device, a wind direction measuring device, a signal processing unit and a signal transmission unit; the wind pressure type wind speed measuring device is arranged at the central position of the outer side of the hub flow guide cover through the mounting assembly, the wind direction measuring device is arranged above the engine room, and the wind pressure type wind speed measuring device and the wind direction measuring device are both over against the incoming flow direction; the wind pressure type wind speed measuring device and the wind direction measuring device are respectively connected with the signal processing unit, the signal processing unit is connected with the signal transmission unit, and the signal transmission unit is connected to the upper computer unit.
Preferably, the mounting assembly comprises a base and a mounting seat, the mounting seat is fixedly mounted on the inner side of the hub air guide sleeve, a plurality of screw holes are formed in the mounting seat, the base is connected with the mounting seat through bolts, and the wind pressure type wind speed measuring device is detachably mounted on the base.
Further preferably, an elastic buffer layer is arranged between the wind pressure type wind speed measuring device and the base.
Preferably, the wind pressure type wind speed measuring device is a piezoresistive pressure sensor, a ceramic pressure sensor or a diffused silicon pressure sensor.
Preferably, the wind direction measuring device is mounted above the nacelle on the rear side of the hub.
Preferably, the wind pressure type front wind measuring system further comprises a lightning rod, and the lightning rod is arranged on the rearmost side above the cabin.
Further preferably, the height of the lightning rod is greater than the wind direction measuring device.
Preferably, the installation axis of the wind pressure type wind speed measuring device and the wind direction measuring device is collinear with the axis of the hub air guide sleeve.
Preferably, the signal processing unit comprises a signal amplification module, a zero point correction module, a linearization processing module, a compensation circuit module, an error correction module, a filtering module and an a/D module, one end of the signal amplification module is respectively connected with the wind pressure type wind speed measuring device and the wind direction measuring device, the other end of the signal amplification module is connected with the zero point correction module, the zero point correction module is connected with the linearization processing module, the linearization processing module is connected with the compensation circuit module, the compensation circuit module is connected with the error correction module, the error correction module is connected with the filtering module, the filtering module is connected with the a/D module, and the a/D module is connected with the signal transmission unit.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses a wind pressure formula preposition anemometry system installs wind pressure formula wind speed measuring device in the central position outside the wheel hub kuppe through the installation component, and the wind speed that measures is the true incoming flow wind speed that is not influenced by the blade work, and wind direction measuring device installs above the cabin simultaneously, utilizes fan yaw system can realize the accurate alignment wind of wind speed measurement; the wind pressure type wind speed measuring device has the advantages of high precision, low manufacturing cost and quick response, the complex processes of measuring, calculating and fitting of a cabin transfer function can be omitted, the measured incoming wind speed can provide powerful support for the control strategy optimization and the generated energy promotion of a follow-up fan, and the wind pressure type wind speed measuring device has a good application prospect.
Furthermore, the mounting seat is fixedly mounted on the inner side of the hub air guide sleeve, so that the mounting firmness and stability are ensured; the base is connected with the mounting seat through a bolt, so that the mounting, the dismounting and the daily maintenance are convenient.
Furthermore, an elastic buffer layer is arranged between the wind pressure type wind speed measuring device and the base, so that the influence of vibration on the wind pressure type wind speed measuring device when the fan runs can be reduced.
Further, the wind direction measuring device is installed above the engine room on the rear side of the hub, and the influence of the operation of the fan on the measured wind direction can be reduced.
Further, the lightning rod can effectively protect the normal operation of the system and the fan.
Furthermore, the installation axis of the wind pressure type wind speed measuring device and the wind direction measuring device is collinear with the axis of the hub air guide sleeve, so that the measured wind speed and the measured wind direction are highly matched in position, and the measuring accuracy is improved.
Furthermore, the signal processing unit comprises a zero point correction module, a linearization processing module, a compensation circuit module and an error correction module besides the conventional signal amplification module, the filtering module and the A/D module, and can ensure the reliability, stability and accuracy of data signal transmission.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1-a base; 2-wind pressure type wind speed measuring device; 3-mounting a base; 4-wind direction measuring means; 5-lightning rod; 6-signal transmission unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, which are used for explanation and not limitation of the present invention:
as shown in fig. 1, the wind pressure type front wind measurement system of the present invention includes a wind pressure type wind speed measuring device 2, a wind direction measuring device 4, a signal processing unit and a signal transmission unit 6; the wind pressure type wind speed measuring device 2 is arranged at the central position of the outer side of the hub air guide sleeve through a mounting assembly, the wind direction measuring device 4 is arranged above the engine room, and the wind pressure type wind speed measuring device 2 and the wind direction measuring device 4 are both over against the incoming flow direction; the wind pressure type wind speed measuring device 2 and the wind direction measuring device 4 are respectively connected with a signal processing unit, the signal processing unit is connected with a signal transmission unit 6, and the signal transmission unit 6 is connected to an upper computer unit.
The upper computer unit can be a PLC control system of the wind generating set.
The utility model discloses a preferred embodiment, the installation component includes base 1 and mount pad 3, and 3 fixed mounting of mount pad are equipped with a plurality of screws in the wheel hub kuppe inboard on the mount pad 3 in the wheel hub kuppe inboard, and base 1 passes through the bolt to be connected with mount pad 3, and the wind pressure formula wind speed measurement device 2 detachably installs on base 1. Preferably, an elastic buffer layer is arranged between the wind pressure type wind speed measuring device 2 and the base 1. The elastic buffer layer can be a high polymer material layer, a rubber layer or a mechanical structure layer with vibration isolation function.
The utility model discloses a preferred embodiment, the wind pressure formula wind speed measuring device 2 is piezoresistive pressure sensor, ceramic pressure sensor or diffusion silicon pressure sensor, and wherein foil gage, stainless steel or ceramic diaphragm should be vertically installed in central position on wheel hub kuppe outside base 1, just to the incoming flow wind speed.
In a preferred embodiment of the present invention, the wind direction measuring device 4 is installed above the nacelle on the rear side of the hub.
In the preferred embodiment of the present invention, the wind pressure type front wind measuring system further includes a lightning rod 5, and the lightning rod 5 is disposed at the rear side above the cabin. Preferably, the height of the lightning rod 5 is larger than the wind direction measuring device 4.
In a preferred embodiment of the present invention, the installation axis of the wind pressure type wind speed measuring device 2 and the wind direction measuring device 4 is collinear with the axis of the wheel hub air guide sleeve.
The utility model discloses a preferred embodiment, the signal processing unit includes the signal amplification module, zero correction module, linearization processing module, compensation circuit module, error correction module, filtering module and AD module, the one end of signal amplification module is connected with wind pressure formula wind speed measuring device 2 and wind direction measuring device 4 respectively, the other end is connected with zero correction module, zero correction module is connected with linearization processing module, linearization processing module is connected with compensation circuit module, compensation circuit module is connected with error correction module, error correction module is connected with filtering module, filtering module is connected with AD module, AD module is connected with signal transmission unit 6.
The working method of the wind pressure type preposed wind measuring system comprises the following steps:
after the wind pressure type wind speed measuring device 2 is subjected to wind pressure, the strain gauge or the diaphragm can automatically convert mechanical deformation into a voltage signal which is in direct proportion to the pressure based on the piezoresistive effect, and the incoming flow wind speed is calculated by using the measured pressure delta P and the wind field air density rho according to the following formula:
after the wind speed signal measured by the wind pressure type wind speed measuring device 2 and the wind direction signal measured by the wind direction measuring device 4 are processed by the signal processing unit, the processed signals are sent to the upper computer unit through the signal transmission unit 6.
Although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the present invention and are to be construed as any additional limitation which is not in accordance with the spirit of the present invention. The above description is only used as an example to further illustrate the content of the present invention, so as to facilitate understanding, but not to represent that the embodiment of the present invention is limited to this, and any technical extension or re-creation according to the present invention is protected by the present invention.
Claims (8)
1. A wind pressure type preposed wind measuring system is characterized by comprising a wind pressure type wind speed measuring device (2), a wind direction measuring device (4), a signal processing unit and a signal transmission unit (6); the wind pressure type wind speed measuring device (2) is arranged at the central position of the outer side of the hub air guide sleeve through the mounting assembly, the wind direction measuring device (4) is arranged above the engine room at the rear side of the hub, and the wind pressure type wind speed measuring device (2) and the wind direction measuring device (4) are opposite to the incoming flow direction; the wind pressure type wind speed measuring device (2) and the wind direction measuring device (4) are respectively connected with the signal processing unit, the signal processing unit is connected with the signal transmission unit (6), and the signal transmission unit (6) is connected to the upper computer unit.
2. The wind pressure type front wind measuring system according to claim 1, wherein the mounting assembly comprises a base (1) and a mounting seat (3), the mounting seat (3) is fixedly mounted on the inner side of the hub air guide sleeve, a plurality of screw holes are formed in the mounting seat (3), the base (1) is connected with the mounting seat (3) through bolts, and the wind pressure type wind speed measuring device (2) is detachably mounted on the base (1).
3. The wind pressure type prepositive wind measuring system according to claim 2, characterized in that an elastic buffer layer is arranged between the wind pressure type wind speed measuring device (2) and the base (1).
4. The wind pressure type prepositioned wind measuring system according to claim 1, wherein the wind pressure type wind speed measuring device (2) is a piezoresistive pressure sensor, a ceramic pressure sensor or a diffused silicon pressure sensor.
5. The wind pressure front anemometry system according to claim 1, characterized in that it further comprises a lightning rod (5), the lightning rod (5) being arranged on the rearmost side above the nacelle.
6. Wind pressure front anemometry system according to claim 5, characterized in that the height of the lightning rod (5) is larger than the wind direction measuring device (4).
7. The wind pressure type front wind measuring system according to claim 1, characterized in that the installation axis of the wind pressure type wind speed measuring device (2) and the wind direction measuring device (4) is collinear with the axis of the hub air guide sleeve.
8. The wind pressure type prepositive wind measuring system according to claim 1, wherein the signal processing unit comprises a signal amplification module, a zero point correction module, a linearization processing module, a compensation circuit module, an error correction module, a filter module and an A/D module, one end of the signal amplification module is respectively connected with the wind pressure type wind speed measuring device (2) and the wind direction measuring device (4), the other end of the signal amplification module is connected with the zero point correction module, the zero point correction module is connected with the linearization processing module, the linearization processing module is connected with the compensation circuit module, the compensation circuit module is connected with the error correction module, the error correction module is connected with the filter module, the filter module is connected with the A/D module, and the A/D module is connected with the signal transmission unit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918482.7U CN218272351U (en) | 2021-11-25 | 2021-11-25 | Wind pressure type prepositive wind measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918482.7U CN218272351U (en) | 2021-11-25 | 2021-11-25 | Wind pressure type prepositive wind measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218272351U true CN218272351U (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122918482.7U Active CN218272351U (en) | 2021-11-25 | 2021-11-25 | Wind pressure type prepositive wind measuring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN218272351U (en) |
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2021
- 2021-11-25 CN CN202122918482.7U patent/CN218272351U/en active Active
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