CN214845774U - Wind turbine generator system wake flow all-round measurement system - Google Patents
Wind turbine generator system wake flow all-round measurement system Download PDFInfo
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- CN214845774U CN214845774U CN202120277514.7U CN202120277514U CN214845774U CN 214845774 U CN214845774 U CN 214845774U CN 202120277514 U CN202120277514 U CN 202120277514U CN 214845774 U CN214845774 U CN 214845774U
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- wind turbine
- turbine generator
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- laser radar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses an all-round measurement system of wind turbine generator system wake, including driftage encoder, a controller, circular slide rail, the mobile unit, support and three-dimensional formula laser radar, the driftage encoder is installed at wind turbine generator system's a tower section of thick bamboo and cabin junction, the controller sets up in a tower section of thick bamboo bottom, the driftage encoder is connected with the controller, circular slide rail is around a tower section of thick bamboo and is installed subaerial, the mobile unit is installed on circular slide rail, bearing installation is on the mobile unit, three-dimensional formula laser radar installs on the support, can measure arbitrary direction and the wind speed and the wind direction of many heights, the mobile unit is connected with the controller, the controller removes according to cabin driftage control mobile unit, make three-dimensional formula laser radar be located the cabin directly over all the time, make three-dimensional formula laser radar's laser beam can measure wind turbine generator system's wake all the time. The utility model discloses can be in the all-round measurement wind turbine generator system wake in ground, the accurate wake data that obtains wind turbine generator system when different wind directions and not co-altitude.
Description
Technical Field
The utility model belongs to the technical field of wind turbine generator system wake measuring technique and specifically relates to indicate a wind turbine generator system wake all-round measurement system.
Background
As known in the art, since offshore wind turbines are installed on the sea level and the installation heights are completely consistent, the airflow inevitably changes when flowing through the multiple wind turbines.
When the blades of the wind turbine generator rotate, airflow at the front end can form wake flow behind the blades after passing through the blades. The wind turbine's that the place ahead was arranged wake, if on using the wind turbine that the rear was arranged, can influence rear wind turbine's generated energy, seriously influence the benefit of wind-powered electricity generation field, but also can influence rear wind turbine's load and operating stability, if mastered wind turbine's wake characteristic, just can carry out appropriate driftage control to the unit, reduce the influence of preceding air exhaust motor group to the rear air exhaust motor group. Therefore, the research on the wake flow trend and the influence degree of the wind turbine generator set has become a common subject of the current wind power industry.
The method for measuring the wake flow of the wind turbine generator at present comprises the following steps: a cabin type laser radar is arranged on a cabin of a wind turbine generator, scans the area behind the cabin, namely behind blades, analyzes the scanning data and combines the yaw direction of the cabin to draw a cloud picture of the flowing trend and the strength of airflow after the airflow passes through the blades.
The prior art scheme has the following defects:
1. the cabin type laser radar is arranged on the cabin, so that the vibration is very large, and the measurement accuracy of the laser radar is influenced;
2. the cabin type laser radar is arranged on the cabin, so that the maintenance is very difficult;
3. the cabin type laser radar can only scan the area near the height of the hub, the scanning height is limited, and airflow changes at different heights cannot be reflected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, provide a wind turbine generator system wake all-round measurement system, can be in the all-round wind turbine generator system wake that measures in ground, the accurate wake data that obtains wind turbine generator system when different wind directions and co-altitude.
In order to achieve the above object, the present invention provides a technical solution: an omnibearing measurement system for wake flow of a wind turbine generator comprises a yaw encoder, a controller, a circular slide rail, a moving unit, a support and a three-dimensional laser radar, wherein the yaw encoder is arranged at the joint of a tower and a cabin of the wind turbine generator and used for detecting the orientation angle of the cabin, the controller is arranged at the bottom of the tower and connected with the controller, so that the controller can read the orientation angle of the cabin in the operation process of the wind turbine generator, the circular slide rail is arranged on the ground around the tower, the moving unit is arranged on the circular slide rail and can move for 360 degrees along the circular slide rail, the support is arranged on the moving unit, the three-dimensional laser radar is arranged on the support, the moving unit can measure wind speed and wind direction in any direction and at multiple heights, and is connected with the controller, the controller controls the mobile unit to move according to the yaw of the engine room, so that the three-dimensional laser radar is always positioned right behind the engine room, and the laser beam of the three-dimensional laser radar can always measure the wake flow of the wind turbine generator.
Further, the moving unit is a driving motor.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
1. the three-dimensional laser radar is arranged on the ground, so that the shaking is very small, and the measuring accuracy of the three-dimensional laser radar is high.
2. The three-dimensional laser radar is installed on the ground, and the maintenance is very convenient.
3. Regardless of the change of the wind direction, the three-dimensional laser radar can always measure the wake flow of the wind turbine generator and measure the wake flows with different heights, so that the wake flow characteristic of the wind turbine generator can be comprehensively researched.
Drawings
Fig. 1 is an installation schematic diagram of a wind turbine wake omni-directional measurement system.
FIG. 2 is a top view of a three-dimensional lidar surrounding a wind turbine on a circular slide rail.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1, the wind turbine mainly comprises a tower 1, blades 2, a hub 3, a nacelle 4 and the like, wherein the blades 1 drive the hub 3 to rotate under the action of wind power, and airflow passes through the blades 2 and then forms a wake flow 7 behind the blades 2. When the wind direction changes, the nacelle 4 will yaw clockwise or counterclockwise, ensuring that the blades 2 are aligned with the wind direction in time.
As shown in fig. 1 and fig. 2, the omni-directional measurement system for wake flow of a wind turbine generator provided in this embodiment includes a yaw encoder 5, a controller 6, a circular slide rail 8, a moving unit 9, a support 10, and a three-dimensional laser radar 11, where the yaw encoder 5 is installed at a connection between a tower 1 and a nacelle 4 of the wind turbine generator for detecting an orientation angle of the nacelle 4, the controller 6 is disposed at the bottom of the tower 1, the yaw encoder 5 is connected to the controller 6, so that the controller 6 can read the orientation angle of the nacelle 4 during operation of the wind turbine generator, the circular slide rail 8 is installed on the ground around the tower 1, the moving unit 9 (which may be a driving motor) is installed on the circular slide rail 8 and can move 360 ° along the circular slide rail 8, the support 10 is installed on the moving unit 9, and the three-dimensional laser radar 11 is installed on the support 10, the moving unit 9 is connected with the controller 6 and is driven by the controller 6 as the moving unit 9 can measure the wind speed and wind direction in any direction and at any altitude.
When the wind direction changes and the cabin 4 is in yaw, the controller 6 outputs a driving instruction to drive the moving unit 9 to move, the support 10 is driven to move along the circular slide rail 8, the three-dimensional laser radar 11 is always located right behind the cabin 4, the laser beam 12 of the three-dimensional laser radar 11 can always measure the wake flow 7 of the wind turbine generator, and finally wake flow data of the wind turbine generator in different wind directions and different heights are obtained.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (2)
1. The utility model provides an all-round measurement system of wind turbine generator system wake which characterized in that: the yaw encoder is arranged at the joint of a tower barrel and a cabin of the wind turbine generator and used for detecting the orientation angle of the cabin, the controller is arranged at the bottom of the tower barrel, the yaw encoder is connected with the controller, so that the controller can read the orientation angle of the cabin in the operation process of the wind turbine generator, the circular slide rail surrounds the tower barrel and is arranged on the ground, the moving unit is arranged on the circular slide rail and can move for 360 degrees along the circular slide rail, the support is arranged on the moving unit, the three-dimensional laser radar is arranged on the support, the moving unit can measure the wind speed and the wind direction in any direction and at multiple heights, the moving unit is connected with the controller, and the controller controls the moving unit to move according to the yaw of the cabin, the three-dimensional laser radar is always positioned right behind the engine room, so that the laser beam of the three-dimensional laser radar can always measure the wake flow of the wind turbine generator.
2. The wind turbine generator wake flow omni-directional measurement system according to claim 1, characterized in that: the moving unit is a driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120277514.7U CN214845774U (en) | 2021-02-01 | 2021-02-01 | Wind turbine generator system wake flow all-round measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120277514.7U CN214845774U (en) | 2021-02-01 | 2021-02-01 | Wind turbine generator system wake flow all-round measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214845774U true CN214845774U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120277514.7U Active CN214845774U (en) | 2021-02-01 | 2021-02-01 | Wind turbine generator system wake flow all-round measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214845774U (en) |
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2021
- 2021-02-01 CN CN202120277514.7U patent/CN214845774U/en active Active
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