CN207281094U - Wind energy conversion system cabin integrated form wind speed and direction measuring device - Google Patents
Wind energy conversion system cabin integrated form wind speed and direction measuring device Download PDFInfo
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- CN207281094U CN207281094U CN201720525149.0U CN201720525149U CN207281094U CN 207281094 U CN207281094 U CN 207281094U CN 201720525149 U CN201720525149 U CN 201720525149U CN 207281094 U CN207281094 U CN 207281094U
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Abstract
Wind energy conversion system cabin integrated form wind speed and direction measuring device, the device include wheel hub leading edge and survey wind group, cabin afterbody survey wind group and control system；Wheel hub leading edge surveys wind group and cabin afterbody and surveys wind group respectively measuring half-plane and the velocity magnitude for carrying out wind of rear hemi-planes and direction before wind energy conversion system；The device is high without mechanical part service life, and data sampling rate is high, gathers atmospheric temperature and pressure correction atmospheric density in real time, can judge whether equipment mistake or large error occurs by self-test.
Description
Technical field
The utility model belongs to technical field of wind power generation, more particularly to a kind of wind energy conversion system cabin integrated form wind speed and direction is surveyed
Measure device.
Background technology
The accurate measurement of wind direction and wind velocity is the basis of wind-power electricity generation operation control.Since wind energy has very high do not know
Property, therefore, to control wind turbine power generation well, be allowed to follow the change of wind speed and obtain maximum power generation and reduce into
This, just must accurately and timely measure wind speed and direction, and wind energy conversion system is controlled accordingly.
Cup anemometer is most common instrument for wind measurement on wind energy conversion system, passes through the big small records wind speed of rotating speed.But vane wind speed
Instrument must coordinate wind vane to be applied in combination, and could complete wind direction measurement.Since cup anemometer and wind vane are mechanical component,
Response speed slow (maximum 1Hz), precision are low, easy to wear.The shortcomings which is maximum is that wind measuring device can be only installed at wind
Power machine cabin afterbody, the incoming wind actually measured have been the wind speed after being changed by wind wheel.Therefore, it is necessary to substantial amounts of data correction
Algorithm calibrates the result of vane and wind vane.At present, technical field of wind power generation in cabin wind speed and direction device it is special
Sharp is mainly to concentrate on to propose to be optimized in data correcting method or structure, such as patent publication No. CN105354763A,
CN103185806A, CN101852172A, CN101727538A, CN201497751U, CN203892125U,
CN106246465A.Ultrasonic wind meter and laser radar anemometer precision are high, respond fast (1~10Hz), but anti-interference
Poor (dense fog or sleet), the efficient general only level of 80%-90% of data, expensive is the tens of of wind-cup type device
More than times, such as patent publication No. CN102269679A, CN202075304U, CN202133677U etc..
At present, piezoelectric starts to be applied to survey wind field, and the major advantage that piezoelectric surveys wind is precision height, response
It hurry up, principle is in itself without mechanical wearing terrain.Piezoelectricity wind measuring device can accurately measure wind speed size, but cannot directly detect wind
To.Patent publication No. CN201540301U and CN203720197U, in order to coordinate survey wind, employ mechanical part, precision and longevity
Life decreases, while the two patents cannot measure wind direction.Patent publication No. CN104535790A, although passing through vertical bar
Torsion can measure wind direction, but since the introducing of mechanical part, sample frequency reduce and easily by icing effects.Press above
Electric material survey wind invention a common deficiency be that device is developed exclusively for wind energy conversion system cabin, therefore cannot or only
Cabin afterbody can be installed on, measurement result is disturbed be subject to wind wheel, it is necessary to remove the wind speed before calculating wind wheel by correction algorithm.Together
When, above-mentioned piezoelectric surveys another being disadvantageous in that jointly of wind invention, lacks temperature and barometric pressure sensor, not right
Atmospheric density is modified, and under different atmospheric pressures and temperature conditionss, atmospheric density is different, therefore identical wind speed produces
Raw signal is also different.
In addition to above-mentioned respective deficiency, there is the problem of cannot be self-detected, i.e. device and SCADA in all of above device
Monitoring system can not judge whether wind measuring device has occurred that measured deviation and measuring error, it is necessary to periodically by special in itself
Equipment wind measuring device is checked.
The content of the invention
The shortcomings that in order to overcome the above-mentioned prior art, the purpose of this utility model is to provide a kind of wind energy conversion system cabin to integrate
Formula wind speed and direction measuring device, the device is high without mechanical part service life, and data sampling rate height (being more than 100Hz), is adopted in real time
Collect atmospheric temperature and pressure correction atmospheric density, can judge whether equipment mistake or large error occurs by self-test.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of wind energy conversion system cabin integrated form wind speed and direction measuring device, including wheel hub leading edge surveys wind group 1, cabin afterbody surveys wind
Group 2 and control system 7；Wheel hub leading edge survey wind group 1 and cabin afterbody survey wind group 2 respectively to measure before wind energy conversion system half-plane and
The velocity magnitude for carrying out wind of rear hemi-planes and direction；
The structure that wheel hub leading edge survey wind group 1 surveys wind group 2 with cabin afterbody is identical, including：Insulating supporting 9, is positive ten
The positive ten hexagons cylinder that hexagon is stretched and formed, two neighboring face is into 157.5 °；16 velocity components measure substrate 3,
Shape is rectangle, and size is identical with each side of insulating supporting 9, is bonded on each side of insulating supporting 9, by insulation branch
Support 9 is coated in it；Atmospheric pressure and temperature survey substrate 4, are bonded in the end face center position of insulating supporting 9；16 sides
Wind coaming plate 5, shape are rectangle, and bottom is bonded in the top surface of insulating supporting 9, and the angle of adjacent crosswind coaming plate 5 is 157.5 °, shape
Into positive ten hexagon of a closing；Baffle 6 windward, the top surface of insulating supporting 9, the height of column are fixed on by 4 root posts
It is higher than 0.5~1cm of the height of crosswind coaming plate 5；Whole insulating supporting 9 is fixed on disc base 8；Crosswind coaming plate 5 and meet
The effect of windshield plate 6 is to ensure that atmospheric pressure and the atmospheric environment residing for temperature survey substrate 4 do not have air flow.
Every piece of velocity component measures substrate 3, including：The piezoelectric ceramic piece 31 of polylith parallel connection；Insulating frame 32, the pressure
Electroceramics piece 31 is embedded into Insulating frame 32 fixed；Efflorescence prevention film 33, the efflorescence prevention film 33 are placed in whole Insulating frame
32 outermost, covers whole piezoelectric ceramic piece 31.
Atmospheric pressure and temperature survey substrate 4, including：The piezoelectric ceramic piece 41 of polylith parallel connection；The temperature of polylith parallel connection passes
Sensor 42；Insulating frame 43, the piezoelectric ceramic piece 41 and temperature sensor 42 are embedded into Insulating frame 43 fixed；It is windproof
Change film 44, the efflorescence prevention film 44 is placed in the outermost of whole Insulating frame 43, covers whole piezoelectric ceramic piece 41 and temperature
Sensor 42.
Control system 7, including：Integrated circuit 71, receives to measure substrate 3 and atmospheric pressure from 16 velocity components
The electric signal passed out with temperature survey substrate 4, and these signal filter and amplifications；Internal I/O buses 72, integrated circuit
Electric signal after processing is delivered to processor；Processor 73, receives internal I/O buses 72 and transmits the signal of coming, carry out at data
Reason and analysis；Outer defeated I/O buses 74, the wind speed that processor 73 has been analyzed, wind direction, atmospheric pressure, are passed in wind energy conversion system cabin
Monitoring system, used for turbine control system and wind field monitoring system.
Optionally, processor 73 can be integrated circuit general processor or application specific processor or PC machine is made
General processor (CPU), microprocessor and digital signal processor.
Preferably, velocity component measurement substrate 3 and atmospheric pressure and temperature survey substrate 4 each can by two pieces or
Four pieces of piezoelectric ceramic pieces compose in parallel.Quantity is more, and the precision mutually calibrated is higher.Meanwhile piezoelectric ceramic piece quantity in parallel
Also depend on the size of device entirety.
The utility model has the advantages that：
The utility model is compared with existing technology, with substantive features as is evident below and significantly a little：
1) described device is electronic sensor, and no mechanical part, outside covering efflorescence prevention film 33, service life is high, will not
The phenomenon that transmission systematic measurement error caused by similar to mechanical wear increases over time.
2) piezoelectric ceramics data sampling rate is high (being more than 100Hz), and the wind speed and direction that can complete higher sample frequency is surveyed
Amount.
3) atmospheric temperature and pressure correction atmospheric density are gathered in real time, and there is very strong versatility.Need not according to season,
Latitude, height above sea level go the individually parameter inside debugging Correction and Control system.
4) two piezoelectric ceramic pieces and temperature sensor can be verified mutually in substrate, can also be mutual between multiple substrates
Verification, therefore described device can judge whether equipment mistake or large error occurs by self-test, remind operation maintenance personnel in time
Carry out maintenance.
Brief description of the drawings
Fig. 1 is the complete layout of the utility model wind energy conversion system cabin integrated form wind speed and direction measuring device.
Fig. 2 is the schematic device that the utility model wheel hub leading edge surveys wind group and cabin afterbody surveys wind group.
Fig. 3 a are the schematic top plan views of the utility model velocity component measurement substrate.
Fig. 3 b are the schematic side views of the utility model velocity component measurement substrate.
Fig. 4 a are the schematic top plan views of the utility model atmospheric pressure and temperature survey substrate.
Fig. 4 b are the schematic side views of the utility model atmospheric pressure and temperature survey substrate.
Fig. 5 is the structure diagram of the utility model control system.
Embodiment
To describe the technology contents of the utility model, construction feature in detail, being achieved the goal and effect, below in conjunction with the accompanying drawings
The utility model is described further with embodiment.
In a specific embodiment, the shape and the quantity of various sensor assemblies etc. are only and enumerate, and should not regard
For the limitation to technical solutions of the utility model.
Embodiment 1：It is the overall cloth of the utility model wind energy conversion system cabin integrated form wind speed and direction measuring device as shown in Figure 1
Put figure.The installation process of device is mainly：
1) wheel hub leading edge is surveyed wind group 1 and is installed.In the wheel hub center of circle position perforate of engine rooms of wind power generators, opening diameter is more than
Disc base 8, specific size depend on the required journal bearing being equipped with.Perforate center need strictly with wheel hub pivot pair
In.Disc base 8 and the roughness requirements of the mutual mating surface of journal bearing are more than 3.2~6.3 μm of grades.Before wheel hub
It is fixed component that edge, which surveys wind group, is not rotated with cabin wheel hub.
2) cabin afterbody is surveyed wind group 2 and is installed.In the inclined centre position perforate of the tail plane of engine rooms of wind power generators, perforate circle
Distance of the heart apart from the edge of cabin tail plane is more than 20%.Opening diameter is slightly larger than or the radius equal to disc base 8.
Perforate face and the roughness of the external diameter surface of disc base 8 have no special requirements, between the two the sealing material such as filled rubber O-ring
Material.
As shown in Fig. 2, the structure that wheel hub leading edge survey wind group 1 surveys wind group 2 with cabin afterbody is identical, including：Insulation branch
Support 9, the positive ten hexagons cylinder formed for the stretching of positive ten hexagon, two neighboring face is into 157.5 °；16 velocity components
Substrate 3 is measured, shape is rectangle, and size is identical with each side of insulating supporting 9, is bonded in each side of insulating supporting 9
On, insulating supporting 9 is coated in it；Atmospheric pressure and temperature survey substrate 4, are bonded in the end face center position of insulating supporting 9
Put；16 crosswind coaming plates 5, shape are rectangle, and bottom is bonded in the top surface of insulating supporting 9, the angle of adjacent crosswind coaming plate 5
For 157.5 °, positive ten hexagon of a closing is formed；Baffle 6 windward, the top surface of insulating supporting 9 is fixed on by 4 root posts,
The height of column is higher than 0.5~1cm of the height of crosswind coaming plate 5；Whole insulating supporting 9 is fixed on disc base 8；Crosswind
Coaming plate 5 and the windward effect of baffle 6 are to ensure that atmospheric pressure and the atmospheric environment residing for temperature survey substrate 4 do not have air stream
It is dynamic.
Embodiment 4 is the overall relation with part with embodiment 2, the relation of embodiment 3：The wind energy conversion system cabin integrated form
Wind speed and direction measuring device, measures substrate 3 by every piece of velocity component in embodiment 2 first and goes measurement to obtain the plate normal side
Corresponding atmospheric pressure and temperature at this time are obtained to corresponding wind pressure size, and by embodiment 3, finally according to embodiment 4
The data analysis of embodiment 2 and 3 is arranged and is merged into last vector wind velocity.Each embodiment comprises the following steps that.
Embodiment 2：Fig. 3 a and Fig. 3 b show the structure diagram of the utility model velocity component measurement substrate.Each base
The signal measurement of plate and the principle of verification are as follows：
The quantity of the piezoelectric ceramic piece 31 of velocity component measurement substrate 3 is n, and (n is even
Number)：
1) signal is collected：What piezoelectric ceramic piece 31 gathered is voltage signal, its voltage signal by being arranged as from small to large
P1 ..., Pn, unit V；
2) signal is transmitted：The signal of P1 ..., Pn pass to place through 71 filter and amplification of integrated circuit by internal I/O buses 72
Manage device 73；
3) the signal self-test of single velocity component measurement substrate 3 and judgement wherein which block piezoelectric ceramic piece 31 break down and need
Shield：Whether the standard of judgement is the mutual measurement error of single piezoelectric ceramic piece 31 more than 1%.Specific method is ratio
Compared with the error between maximum and minimum value：If shielded signal more than k, not over self-test, system alarm, automatically
Shield the velocity component measurement substrate 3 as a result, the correspondence of n and k is n=2 × (k+1)；
4) voltage signal is converted into wind pressure (dynamic pressure of wind flow) high low signal corresponding to the plate normal direction；Processor
The voltage signal average value Pb being calculated in 73 steps 3), the voltage-wind provided by searching for the piezoelectric ceramic piece producer
Correspondence is pressed, voltage swing Pb is converted into corresponding specific wind pressure size Pv, unit Pa；
5) the 16 velocity component measurement shielded quantity of substrate, if quantity not adjacent to each other is more than 4 or continuous
Adjacent quantity is more than 3, then system reports an error, it is desirable to repairs whole equipment.
Embodiment 3：Fig. 4 a and Fig. 4 b show the structural representation of the utility model atmospheric pressure and temperature survey substrate 4
Figure.The atmospheric pressure and the principle of temperature survey and verification of each substrate are identical with velocity component measurement substrate 3, and principle is as follows：
1) signal is collected：What piezoelectric ceramic piece 41 gathered is voltage signal, its voltage signal by being arranged as from small to large
Patm1 ..., Patmn, unit V；What temperature sensor 42 gathered is also voltage signal, its voltage signal by arranging from small to large
For Pt1 ..., Ptn, unit V；
Step 2) arrives step 3) in the signal measurement and method of calibration of recurrence rate component measurement substrate 3, if shielded
Signal more than k, not over self-test, system reports an error, it is desirable to maintenance of equipment；The correspondence of n and k is n=2 × (k+1)；
Finally obtain the average-voltage signal Pbatm and Pbt on atmospheric pressure and temperature survey substrate 4；
2) voltage signal is converted into atmospheric pressure and temperature corresponding to the plate：Processor 73 search the piezoelectric ceramic piece and
Voltage-atmospheric pressure, the voltage-temperature correspondence of temperature sensor producer offer, atmospheric pressure is converted into by Pbatm and Pbt
Power P0 and temperature Pt, unit be respectively Pa and DEG C；
Embodiment 4：Fig. 2 show the device signal that the utility model wheel hub leading edge surveys wind group and cabin afterbody surveys wind group
Figure.The measuring principle of the wind speed and direction of device is as follows：
1) processor 73 extracts wind pressure size Pv, atmospheric pressure P0 and the temperature Pt in embodiment 2 and embodiment 3；
2) atmospheric density calculates：Atmospheric density calculates according to the following formula, wherein ρ0=1.293kg/m3It is 0 DEG C for temperature, pressure
For 10130Pa when dry air density
ρ=ρ0×273/(273+Pt)×P0/10130
3) wind speed corresponding to velocity component measurement 3 normal direction of substrate calculates：Processor 73 is calculated based on the following formula
Wind speed size V corresponding to every piece of 3 normal direction of speed air measuring substrate；
V2=2 × (Pv-P0)/ρ
5) by above formula, normal velocity size, the mutual angle of substrate 3 is measured according to each velocity component, is closed
Into the absolute velocity of vector, absolute direction and velocity magnitude are included；
6) result is passed to the monitoring systems such as wind energy conversion system SCADA by processor 73 through outer defeated I/O buses 74：
By the implementation of above step, the measurement of wind energy conversion system wind speed and air quantity is realized, which can directly measure wind
The wind speed of power machine front portion, avoids the wind speed that the devices such as vane go to prediction wind energy conversion system front portion by transmission function, no mechanical part
Service life is high, and data sampling rate height (being more than 100Hz), gathers atmospheric temperature and pressure correction atmospheric density, Neng Goutong in real time
Cross multi-layer self-test and judge whether equipment mistake or large error occurs.Measurement accuracy is improved, there is wider adaptability.
Without departing from the spirit or scope of the present utility model, can to the utility model carry out various modifications and
Modification.Thus, if any modification or modification are fallen into the protection domain of the appended claims and equivalent, it is believed that this reality
Cover these modifications and variations with new.
Claims (3)
- A kind of 1. wind energy conversion system cabin integrated form wind speed and direction measuring device, it is characterised in that：Including wheel hub leading edge survey wind group (1), Cabin afterbody surveys wind group (2) and control system (7)；Wheel hub leading edge surveys wind group (1) and cabin afterbody survey wind group (2) respectively surveying Amount half-plane and the velocity magnitude for carrying out wind of rear hemi-planes and direction before wind energy conversion system；The structure that wheel hub leading edge survey wind group (1) surveys wind group (2) with cabin afterbody is identical, including：Insulating supporting (9), for just The positive ten hexagons cylinder that ten hexagons are stretched and formed, two neighboring face is into 157.5 °；16 velocity components measure substrate (3), shape is rectangle, and size is identical with each side of insulating supporting (9), is bonded on each side of insulating supporting (9), Insulating supporting (9) is coated in it；Atmospheric pressure and temperature survey substrate (4), are bonded in the end face center of insulating supporting (9) Position；16 crosswind coaming plates (5), shape are rectangle, and bottom is bonded in the top surface of insulating supporting (9), adjacent crosswind coaming plate (5) angle is 157.5 °, forms positive ten hexagon of a closing；Baffle (6) windward, insulation is fixed on by 4 root posts The top surface of (9) is supported, the height of column is higher than 0.5~1cm of the height of crosswind coaming plate (5)；Whole insulating supporting (9) is fixed On disc base (8)；Crosswind coaming plate (5) and the windward effect of baffle (6) are to ensure atmospheric pressure and temperature survey substrate (4) Residing atmospheric environment does not have air stream；Every piece of velocity component measurement substrate (3), including：The first piezoelectric ceramic piece (31) of n blocks parallel connection, n is even number；First insulation Frame (32), first piezoelectric ceramic piece (31) are embedded into the first Insulating frame (32) fixed；First efflorescence prevention film (33), the first efflorescence prevention film (33) is placed in the outermost of whole first Insulating frame (32), covers whole first piezoelectricity Potsherd (31)；Atmospheric pressure and temperature survey substrate (4), including：The second piezoelectric ceramic piece (41) of polylith parallel connection；The temperature of polylith parallel connection Spend sensor (42)；Second Insulating frame (43), second piezoelectric ceramic piece (41) and temperature sensor (42) are embedded into It is fixed in second Insulating frame (43)；Second efflorescence prevention film (44), it is exhausted that the second efflorescence prevention film (44) is placed in whole second The outermost of edge frame (43), covers whole second piezoelectric ceramic piece (41) and temperature sensor (42)；Control system (7), including：Integrated circuit (71), receives from 16 velocity components measurement substrate (3) and atmospheric pressure The electric signal that power and temperature survey substrate (4) pass out, and these signal filter and amplifications；Internal I/O buses (72), collection Processor is delivered into the electric signal after processing of circuit；Processor (73), receives internal I/O buses (72) and transmits the signal of coming, Carry out data process＆analysis；Outer defeated I/O buses (74), wind speed, wind direction, the atmospheric pressure that processor (73) has been analyzed, pass Enter the monitoring system in wind energy conversion system cabin, used for turbine control system and wind field monitoring system.
- A kind of 2. wind energy conversion system cabin integrated form wind speed and direction measuring device according to claim 1, it is characterised in that：It is described Processor (73) is integrated circuit general processor or application specific processor.
- A kind of 3. wind energy conversion system cabin integrated form wind speed and direction measuring device according to claim 1, it is characterised in that：It is described Velocity component measurement substrate (3) and the two pieces or four pieces piezoelectric ceramic piece parallel connections of atmospheric pressure and each freedom of temperature survey substrate (4) Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720525149.0U CN207281094U (en) | 2017-05-11 | 2017-05-11 | Wind energy conversion system cabin integrated form wind speed and direction measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720525149.0U CN207281094U (en) | 2017-05-11 | 2017-05-11 | Wind energy conversion system cabin integrated form wind speed and direction measuring device |
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| CN207281094U true CN207281094U (en) | 2018-04-27 |
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ID=61992054
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| CN201720525149.0U Active CN207281094U (en) | 2017-05-11 | 2017-05-11 | Wind energy conversion system cabin integrated form wind speed and direction measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106980030A (en) * | 2017-05-11 | 2017-07-25 | 中国华能集团清洁能源技术研究院有限公司 | Wind energy conversion system cabin integrated form wind speed and direction measuring device and method |
| CN113063962A (en) * | 2021-04-13 | 2021-07-02 | 华能陇东能源有限责任公司 | Ultrasonic wind measuring device |
-
2017
- 2017-05-11 CN CN201720525149.0U patent/CN207281094U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106980030A (en) * | 2017-05-11 | 2017-07-25 | 中国华能集团清洁能源技术研究院有限公司 | Wind energy conversion system cabin integrated form wind speed and direction measuring device and method |
| CN106980030B (en) * | 2017-05-11 | 2023-04-25 | 中国华能集团清洁能源技术研究院有限公司 | Wind turbine cabin integrated wind speed and direction measuring device and method |
| CN113063962A (en) * | 2021-04-13 | 2021-07-02 | 华能陇东能源有限责任公司 | Ultrasonic wind measuring device |
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