CN105486889A - Correction method of wind indicator zero correction system - Google Patents
Correction method of wind indicator zero correction system Download PDFInfo
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- CN105486889A CN105486889A CN201510830750.6A CN201510830750A CN105486889A CN 105486889 A CN105486889 A CN 105486889A CN 201510830750 A CN201510830750 A CN 201510830750A CN 105486889 A CN105486889 A CN 105486889A
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- main shaft
- weathervane
- angle
- correcting unit
- electronic compass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a correction method of a wind indicator zero correction system. The method comprises the following steps: 1) arranging a wind indicator angle correction component to a wind indicator of a test device, rotating and adjusting the wind indicator angle correction component to enable the wind indicator angle correction component to be aligned with the zero graduation line of the wind indicator, and then, fixing the wind indicator angle correction component to the wind indicator; 2) arranging a main shaft angle correction component to a main shaft of the test device, rotating and adjusting the main shaft angle correction component to enable the main shaft angle correction component to be parallel to the direction of the main shaft, and then, fixing the main shaft angle correction component to the main shaft; and 3) inputting a wind indicator angle signal measured by the wind indicator angle correction component and a main shaft angle signal measured by the main shaft angle correction component to an angle adjustment component, and when the difference between the wind indicator angle and the main shaft angle is larger than 4 degrees, adjusting the direction of the wind indicator to enable the zero graduation line of the wind indicator to be parallel to the main shaft.
Description
Technical field
The present invention relates to a kind of bearing calibration, be specifically related to a kind of bearing calibration of weathervane zero correction system.
Background technology
Wind turbines driftage can produce obvious impact on wind is inaccurate to unit generation amount, directly affects wind energy turbine set and sends out economic benefit.Causing unit to be the zero direction that the sensor owing to being positioned at survey collection wind direction on cabin collects to the main cause that wind is forbidden not is head actual direction.In maintenance and installation, weathervane zero correction adopts observation at present, weathervane zero graduation direction corrects parallel with heading by the direct feel by maintainer, because everyone sense organ difference easily causes the error of correction, the zero direction that sensor is collected not is the actual direction of head, thus cause unit to be forbidden wind, the wind energy directly causing unit to be caught reduces, and unit generation amount reduces, and makes the economic benefit of wind energy turbine set be subject to tremendous influence.
For solving this demand, the existing principle flat according to laser water detection, carries out the device of weathervane correction by laser and pedal line etc.But this device intuitively can not show numerical value, operation affects by weather and human factor.Therefore being badly in need of a kind of device can the detection weathervane error of zero of fast quantification, for weathervane zero correction provides foundation.
Weathervane is made up of the housing base 2 ' and signal accessory power outlet etc. of weathervane rotatable parts 4 ' (head 401 ', horizon bar 402 ' and empennage 403 '), in-built wind direction angle signal generator, as shown in Figure 1.Be fixedly mounted on the meteorological frame at nacelle cover top by base, base be provided with the zero graduation line of weathervane, when weathervane is consistent with zero graduation direction, the sensor of weathervane exports zero degree signal.Therefore the angle that weathervane exports represents the angle of wind direction and unit heading, and Wind turbines makes angle remain on zero degree by driftage as far as possible, and what realize unit chases after pneumatic work.Because the reasons such as unit rocks can cause weathervane to occur loosening generation error in actual wind energy turbine set is run.Cause wind direction zero graduation line to occur departing from, the wind energy causing unit to be caught declines.
The meteorological frame form at nacelle cover top divides two kinds: crossbar type, riser type.Crossbar type support is added by the nut below wind gage, weathervane and cross bar and fastens.Riser type mainly relies on the screw of tightening of weathervane outside of sleeve to fix.
Because weathervane needs the zero graduation position on the base of weathervane to align with heading, Z-operation is generally and safeguards that the position that employee estimates weathervane zero-bit and support has been come, visual effect, the weathervane of crossbar type support is owing to having square features, to zero error generally at about 5-10 °, and the weathervane that vertical bar type is fixed is because reference point is on cylindrical montant, confirm that difficulty is large, list looks for application condition difficulty from naked eyes, thus the error to zero can be caused comparatively large, cause measuring error to increase.
As the V that the wind comes from
0to form an angle α with heading
wtime, as shown in Figure 2, the output loss evaluating unit needs to consider from incoming flow wind power and power efficieney two aspect.By resolution of vectors by decomposition of definitely the wind comes from, head positive dirction speed of incoming flow V
w=v
0cos (α
w).The power P w=ρ v of the wind therefore flow through in unit heading wind wheel xsect
0 3cos
3(α
w) A/2.Due to wind energy energy loss that wind angle is caused as shown in Figure 3.
And electronic compass, also known as digital compass, in modern technologies condition, electronic compass is widely used as navigation instrument or attitude sensor.Electronic compass and tradition pointer-type and balance that shelf structure compass phase specific energy consumption is low, volume is little, lightweight, precision is high, Miniaturized, its output signal can realize digital-scroll technique by process, not only can be used to refer to, its digital signal directly can deliver to autopilot, controls the manipulation of boats and ships.At present, widely use three axle strapdown reluctance type Digital Magnetic Compass, this compass have anti-shake and vibration resistance, course precision higher, interference field had to electronic compensation, can be integrated in control loop and carry out the advantages such as data link, be thus widely used in the fields such as Aeronautics and Astronautics, robot, navigation, vehicular autonomous navigation.
Therefore the weathervane of electronic compass and design and main shaft unit clamp are combined, drawn the device that this applying electronic compass carries out the zero correction of Wind turbines weathervane.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of bearing calibration of weathervane zero correction system, the angle can measured by main shaft angle correcting unit, the angle of direct adjustment angle of vane correcting unit, the zero graduation line of weathervane is paralleled with described main shaft, thus the error of the zero graduation line of weathervane is quantized, improve speed and the degree of accuracy of weathervane zero correction simultaneously, thus reduce the Wind turbines driftage degree inaccurate to wind, promote the lifting of unit generation amount, add the economic benefit of wind energy turbine set, and because hand-held adjustment member real-time monitored can implement adjustment, reduce the unnecessarily measuring error that operation bidirectional brings.
For achieving the above object, technical scheme of the present invention is as follows:
On the one hand, the invention provides a kind of weathervane zero correction device, comprise angle of vane correcting unit, main shaft angle correcting unit and angular adjustment parts, described angle of vane correcting unit is arranged on the outside of proving installation, and be connected with the weathervane on proving installation, described angle of vane correcting unit is for regulating the angle of weathervane; The positive parts of described main shaft angle are arranged on the main shaft in proving installation, described main shaft angle correcting unit is for measuring the angle of main shaft, described angular adjustment parts are connected with described weathervane, main shaft angle correcting unit respectively, and the angle of weathervane described in the angular adjustment measured by main shaft angle correcting unit, the zero graduation line of weathervane is paralleled with described main shaft.
Weathervane zero correction device of the present invention, by angular adjustment parts, the angle of weathervane can be regulated, the zero graduation line of weathervane is paralleled with described main shaft, thus the zero graduation line error of weathervane is quantized, improve speed and the degree of accuracy of weathervane zero correction simultaneously, thus reduce the Wind turbines driftage degree inaccurate to wind, promote the lifting of unit generation amount, add the economic benefit of wind energy turbine set, and because hand-held adjustment member real-time monitored can implement adjustment, reduce the unnecessarily measuring error that operation bidirectional brings.
On the basis of technique scheme, the present invention also can make following improvement:
As preferred scheme, described angle of vane correcting unit comprises weathervane electronic compass, and described weathervane electronic compass aligns with the zero graduation line of weathervane, and for measuring the angle of described weathervane; Described main shaft correcting unit comprises main shaft electronic compass, described main shaft electronic compass is parallel with the direction of described main shaft, described main shaft electronic compass is for measuring the angle of described main shaft, described angular adjustment parts are connected with described weathervane, main shaft electronic compass respectively, and the angle of the measurement of the angular adjustment weathervane electronic compass measured by main shaft electronic compass, the zero graduation line of weathervane is paralleled with described main shaft.
Adopt above-mentioned preferred scheme, electronic compass and tradition pointer-type and balance that shelf structure compass phase specific energy consumption is low, volume is little, lightweight, precision is high, Miniaturized, its output signal can realize digital-scroll technique by process, not only can be used to refer to, its digital signal directly can deliver to autopilot, control the manipulation of boats and ships, thus control easily through angular adjustment parts.
As preferred scheme, described angle of vane correcting unit also comprises the first support, and described first is erected on the weathervane of proving installation, and aligns with the zero graduation line of described weathervane, and described weathervane electronic compass is fastened on described first support.
Adopt above-mentioned preferred scheme, by the setting of support, be convenient to install, being located on weathervane rotatable parts can unitary rotation, is convenient to regulate.
As preferred scheme, the bottom of described first support is provided with the first draw-in groove, described first support is installed on described weathervane by the first draw-in groove, the top of described first support is also provided with the second draw-in groove, described weathervane electronic compass is installed in the second draw-in groove, and the horizontal direction of described second draw-in groove is alignd with the zero graduation line of described weathervane.
As preferred scheme, described main shaft angle correcting unit also comprises the second support, and described second is erected on described main shaft, and parallels with described main shaft, and described main shaft electronic compass is fastened on described second support.
Adopt above-mentioned preferred scheme, be convenient to install, convenient adjustment.
As preferred scheme, the top of described second support is provided with groove, and described main shaft electronic compass is installed in described groove, and the bottom of described second support is installed on described main shaft, and the horizontal direction of described groove and described main axis parallel.
As preferred scheme, described second support is also provided with laser generator, described laser generator parallels with described main shaft for regulating described second support.
Adopt above-mentioned preferred scheme, the second support can be adjusted more accurately, make itself and main axis parallel.
As preferred scheme, described first support and the second support are made by nonmagnetic substance.
Adopt above-mentioned preferred scheme, first and second support supported by nonmagnetic substance can prevent interference, makes measurement result more accurate.
As preferred scheme, described angular adjustment parts are hand-held adjusting apparatus.
Adopt above-mentioned preferred scheme, hand-held adjusting apparatus is convenient to be regulated, and it is more convenient to use.
On the other hand, the present invention also provides a kind of weathervane zero correction system, comprises above-mentioned weathervane zero correction device described in any one, also comprises proving installation.
Again on the one hand, the present invention also provides a kind of bearing calibration of weathervane zero correction system, comprises the following steps:
1) angle of vane correcting unit is arranged on the weathervane of proving installation, rotates and regulate described angle of vane correcting unit, make it align with the zero graduation line of described weathervane, then angle of vane correcting unit is fixed on weathervane;
2) again main shaft angle correcting unit is arranged on the main shaft of described proving installation, rotates and regulate described main shaft angle correcting unit, make it parallel with the direction of described main shaft, then described main shaft angle correcting unit is fixed on main shaft;
3) the signal input angle adjustment member of the signal of the angle of vane of described angle of vane correcting unit measurement and the main shaft angle of described main shaft angle correcting unit measurement, when described angle of vane and main shaft angle differ more than 4 °, regulate the angle of weathervane, the zero graduation line of weathervane is paralleled with described main shaft.
On the basis of technique scheme, the present invention also can make following improvement:
As preferred scheme, in step 1) in, described angle of vane correcting unit comprises weathervane electronic compass, rotates the direction regulating described weathervane electronic compass, makes it align with the zero graduation line of described weathervane.
As preferred scheme, described angle of vane correcting unit also comprises the first support, first the first bracket clamp is contained on described weathervane, and then described weathervane electronic compass is installed on described first support, rotate adjustment first support and make it align with the zero graduation line of described weathervane.
As preferred scheme, by regulating the magnetic field environment of described weathervane electronic compass, alignd in the direction of described weathervane electronic compass with the zero graduation line of described weathervane.
As preferred scheme, in step 2) in, described main shaft angle correcting unit comprises main shaft electronic compass, rotates and regulates described main shaft electronic compass to make it parallel with the direction of described main shaft.
As preferred scheme, described main shaft angle correcting unit also comprises the second support, first the second bracket clamp is contained on described main shaft, and then described main shaft electronic compass is installed on described second support, rotate and regulate main shaft electronic compass to make it parallel with the direction of described main shaft.
As preferred scheme, overregulate the magnetic field environment of described main shaft electronic compass, make the direction of described main shaft electronic compass make it parallel with described main shaft.
As preferred scheme, described second support is also provided with laser generator, is contained in by the second bracket clamp after on described main shaft, the ray first sent by laser generator adjusts described second support as reference, makes it parallel with described main shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of weathervane of the prior art;
Fig. 2 is that the main shaft in the cabin of proving installation and incoming flow form an angle schematic diagram;
Fig. 3 is the wind energy loss figure that the cabin of proving installation causes wind error;
Fig. 4 is the structural representation that weathervane zero correction device of the present invention is arranged on proving installation;
Fig. 5 is the structural representation of the first support in the angle of vane correcting unit in weathervane zero correction device of the present invention;
Fig. 6 is the structural representation of the main shaft angle correcting unit in weathervane zero correction device of the present invention;
The process flow diagram of the bearing calibration zero correction of Fig. 7 weathervane zero correction system;
Wherein:
1. angle of vane correcting unit, 2. main shaft angle correcting unit, 3. proving installation, 4. weathervane rotatable parts, 5, main shaft, 6. weathervane electronic compass, 7. main shaft electronic compass, 8. the first support, 801. first draw-in grooves, 802. second draw-in grooves, 9. the second support, 901. grooves, 902. laser generators, 903. rays, 10. weathervane, 11. impellers, 12. cabins, 13. gear casees, 14. generators.
Embodiment
The preferred embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
In order to reach object of the present invention, as shown in Figs. 4-6, weathervane zero correction device of the present invention, comprise angle of vane correcting unit 1, main shaft angle correcting unit 2 and angular adjustment parts, it is outside that angle of vane correcting unit 1 is arranged on proving installation 3, and be connected with the weathervane 10 on proving installation 3, angle of vane correcting unit 1 is for regulating the angle of weathervane 10; On the main shaft 5 of the positive parts installation 2 of main shaft angle in proving installation 1; Main shaft angle correcting unit 2 is for measuring the angle of main shaft 5, angular adjustment parts are connected with weathervane, main shaft angle correcting unit 1,2 respectively, and the angle of weathervane is regulated by the main shaft angle that main shaft angle correcting unit 2 is measured, the zero graduation line of weathervane 10 is paralleled with main shaft 5.This weathervane zero correction device, angular adjustment parts can show the angle that main shaft angle correcting unit is measured, thus directly regulate the angle of weathervane and the angle of main shaft, the zero graduation line of weathervane is paralleled with main shaft, thus the error of the zero graduation line of weathervane is quantized, improve speed and the degree of accuracy of weathervane zero correction simultaneously, thus reduce the Wind turbines driftage degree inaccurate to wind, promote the lifting of unit generation amount, add the economic benefit of wind energy turbine set, and because hand-held adjustment member real-time monitored can implement adjustment, reduce the unnecessarily measuring error that operation bidirectional brings.
In order to optimize implementation result of the present invention further, angle of vane correcting unit 1 comprises weathervane electronic compass 6, and weathervane electronic compass 6 aligns with the zero graduation line of weathervane, and for measuring the angle of weathervane; Main shaft correcting unit 2 comprises main shaft electronic compass 7, main shaft electronic compass 7 is parallel with the direction of main shaft 5, main shaft electronic compass 7 is for measuring the angle of main shaft, angular adjustment parts are connected with weathervane, main shaft electronic compass 6,7 respectively, and by the taking measurement of an angle of angular adjustment weathervane electronic compass 6 that main shaft electronic compass 7 is measured, weathervane 10 is paralleled with main shaft 5.Electronic compass and tradition pointer-type and balance that shelf structure compass phase specific energy consumption is low, volume is little, lightweight, precision is high, Miniaturized, its output signal can realize digital-scroll technique by process, not only can be used to refer to, its digital signal directly can deliver to autopilot, control the manipulation of boats and ships, thus control easily through angular adjustment parts.
In order to optimize implementation result of the present invention further, angle of vane correcting unit 1 also comprises the first support 8, described first support 8 is located on the weathervane 10 of proving installation 3, and aligns with the zero graduation line of weathervane, and weathervane electronic compass 6 is fastened on the first support 8.Be convenient to install, convenient adjustment.
In order to optimize implementation result of the present invention further, the bottom of the first support 8 is provided with the first draw-in groove 801, first support 8 is installed on weathervane 10 by the first draw-in groove 801, the top of the first support 8 is also provided with the second draw-in groove 802, weathervane electronic compass 6 is installed in the second draw-in groove 802, and the horizontal direction of the second draw-in groove 802 is alignd with the zero graduation line of weathervane.
In order to optimize implementation result of the present invention further, main shaft angle correcting unit 2 also comprises the second support 9, second support 9 and is located on main shaft 5, and parallels with main shaft 5, and main shaft electronic compass 7 is fastened on the second support 9.Be convenient to install, convenient adjustment.
In order to optimize implementation result of the present invention further, the top of the second support 9 is provided with groove 901, and main shaft electronic compass 7 is installed in groove 901, and the bottom of the second support 9 is installed on main shaft 5, and the horizontal direction of groove 901 is parallel with main shaft 5.
In order to optimize implementation result of the present invention further, the second support 9 is also provided with laser generator 902, laser generator 902 parallels with main shaft 5 for regulating the second support 9.The second support can be adjusted more accurately, make itself and main axis parallel.
In order to optimize implementation result of the present invention further, the first support 8 and the second support 9 are made by nonmagnetic substance.First and second support supported by nonmagnetic substance can prevent interference, makes measurement result more accurate.
In order to optimize implementation result of the present invention further, described angular adjustment parts are hand-held adjusting apparatus.Hand-held adjusting apparatus is convenient to be regulated, and it is more convenient to use.
In order to reach object of the present invention, weathervane zero correction system of the present invention, comprises the weathervane zero correction device of the invention described above, also comprises proving installation.
In order to optimize implementation result of the present invention further, proving installation of the present invention is Wind turbines, Wind turbines comprises cabin 12 and weathervane 10, and angle of vane correcting unit 1 is arranged on the weathervane 10 of outside, cabin 12, and main shaft angle correcting unit is installed on the main shaft 5 of inside, cabin 12.
Mechanical type weathervane or ultrasonic type weathervane is can be in order to optimize implementation result weathervane of the present invention further.
In order to optimize implementation result of the present invention further, when wind direction is designated as ultrasonic type weathervane, weathervane comprises the housing base of weathervane measurement component and in-built wind direction coded signal generator, angle of vane correcting unit 1 is arranged on weathervane measurement component by the first support 8, and housing base is arranged on Wind turbines.
In order to optimize implementation result of the present invention further, when weathervane can be mechanical type weathervane, weathervane measurement component comprises measurement component and connected weathervane rotatable parts 4, and angularity correction parts 1 are arranged on weathervane rotatable parts 4 by the first support 8.
In order to optimize implementation result of the present invention further, Wind turbines can be double-fed and directly driven wind-powered unit.
In order to optimize implementation result of the present invention further, when Wind turbines is double-fed fan motor unit, inside, cabin 12 is also provided with generator 14, and side, cabin 12 is also provided with impeller 11, and impeller 11 rotates generating by main shaft 5 and gear case 13 drive electrical generators 14 under the driving of wind.
In order to optimize implementation result of the present invention further, when Wind turbines is directly driven wind-powered unit, inside, cabin 12 is also provided with generator 14, and side, cabin 12 is also provided with impeller 11, and impeller 11 rotates generating by main shaft 5 drive electrical generators 14 under the driving of wind.
In order to reach object of the present invention, the bearing calibration of weathervane zero correction system of the present invention, for realizing the zero correction of the weathervane of pick-up unit of the present invention, comprises the following steps:
1) angle of vane correcting unit 1 is arranged on the weathervane 4 of proving installation, rotates and regulate angle of vane correcting unit 1 to make it align with the zero graduation line of weathervane;
2) again main shaft angle correcting unit 2 is arranged on the main shaft 5 of described proving installation, rotates and regulate main shaft angle correcting unit 1 to make it parallel with the direction of main shaft 5;
3) the angle of vane signal of angle of vane correcting unit and the main shaft angle signal input angle adjustment member of described main shaft angle correcting unit, when angle of vane and main shaft angle differ more than 4 °, regulate the direction of weathervane 4, weathervane 4 is paralleled with main shaft 5.
In order to optimize implementation result of the present invention further, in step 1) in, angle of vane correcting unit 1 comprises weathervane electronic compass 6, rotates and regulates the direction of weathervane electronic compass 6 to make it align with the zero graduation line of weathervane 4.
In order to optimize implementation result of the present invention further, angle of vane correcting unit 1 also comprises the first support 8, first the first support 8 is installed on weathervane 4, and then weathervane electronic compass 6 is installed on the first support 8, rotate adjustment first support 8 and make it align with the zero graduation line of weathervane.
In order to optimize implementation result of the present invention further, by regulating the magnetic field environment of weathervane electronic compass 6, the direction of weathervane electronic compass 6 is made to make it align with the zero graduation line of weathervane.
In order to optimize implementation result of the present invention further, in step 2) in, main shaft angle correcting unit 2 comprises main shaft electronic compass 7, rotates and regulates main shaft electronic compass 7 to make it parallel with the direction of main shaft 5.
In order to optimize implementation result of the present invention further, main shaft angle correcting unit 2 also comprises the second support 9, first the second support 9 is installed on main shaft 5, and then main shaft electronic compass 7 is installed on the second support 9, rotate and regulate main shaft electronic compass 7 to make it parallel with the direction of main shaft 5.
In order to optimize implementation result of the present invention further, overregulating the magnetic field environment of main shaft electronic compass 7, making the direction of main shaft electronic compass 7 make it parallel with main shaft 5.
In order to optimize implementation result of the present invention further, second support 9 is also provided with laser generator 902, be installed on after on main shaft 5 by second support 9, the ray 903 first sent by laser generator 902 adjusts the second support 9 as reference, makes it parallel with main shaft 5.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (8)
1. a bearing calibration for weathervane zero correction system, comprises the following steps:
1) angle of vane correcting unit is arranged on the weathervane of proving installation, rotates and regulate described angle of vane correcting unit, make it align with the zero graduation line of described weathervane, then angle of vane correcting unit is fixed on weathervane;
2) again main shaft angle correcting unit is arranged on the main shaft of described proving installation, rotates and regulate described main shaft angle correcting unit, make it parallel with the direction of described main shaft, then described main shaft angle correcting unit is fixed on main shaft;
3) the signal input angle adjustment member of the signal of the angle of vane of described angle of vane correcting unit measurement and the main shaft angle of described main shaft angle correcting unit measurement, when described angle of vane and main shaft angle differ more than 4 °, regulate the angle of weathervane, the zero graduation line of weathervane is paralleled with described main shaft.
2. the bearing calibration of weathervane zero correction system according to claim 1, it is characterized in that, in step 1) in, described angle of vane correcting unit comprises weathervane electronic compass, rotate the direction regulating described weathervane electronic compass, make it align with the zero graduation line of described weathervane.
3. the bearing calibration of weathervane zero correction system according to claim 2, it is characterized in that, described angle of vane correcting unit also comprises the first support, first the first bracket clamp is contained on described weathervane, and then described weathervane electronic compass is installed on described first support, rotate adjustment first support and make it align with the zero graduation line of described weathervane.
4. the bearing calibration of weathervane zero correction system according to claim 3, is characterized in that, by regulating the magnetic field environment of described weathervane electronic compass, is alignd in the direction of described weathervane electronic compass with the zero graduation line of described weathervane.
5. the bearing calibration of weathervane zero correction system according to claim 1, it is characterized in that, in step 2) in, described main shaft angle correcting unit comprises main shaft electronic compass, rotate and regulate described main shaft electronic compass, make it parallel with the direction of described main shaft.
6. the bearing calibration of weathervane zero correction system according to claim 5, it is characterized in that, described main shaft angle correcting unit also comprises the second support, first the second bracket clamp is contained on described main shaft, and then described main shaft electronic compass is installed on described second support, rotate and regulate main shaft electronic compass to make it parallel with the direction of described main shaft.
7. the bearing calibration of weathervane zero correction system according to claim 6, is characterized in that, overregulates the magnetic field environment of described main shaft electronic compass, makes the direction of described main shaft electronic compass make it parallel with described main shaft.
8. the bearing calibration of weathervane zero correction system according to claim 7, it is characterized in that, described second support is also provided with laser generator, second bracket clamp is contained in after on described main shaft, the ray first sent by laser generator adjusts described second support as reference, makes it parallel with described main shaft.
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| CN201510830750.6A CN105486889B (en) | 2015-11-25 | 2015-11-25 | The bearing calibration of wind vane zero correction system |
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| CN107064544A (en) * | 2017-04-05 | 2017-08-18 | 西安工业大学 | Sky automatic leveling luggage based on ground magnetic principle is put and method of adjustment |
| CN108127396A (en) * | 2018-01-24 | 2018-06-08 | 明阳智慧能源集团股份公司 | It is a kind of for large-scale half direct-drive unit anemoscope to zero device and its to zero method |
| CN110632346A (en) * | 2018-11-29 | 2019-12-31 | 北京金风科创风电设备有限公司 | Method, device and system for correcting installation error of wind vane |
| CN112505355A (en) * | 2020-12-18 | 2021-03-16 | 北京唐浩电力工程技术研究有限公司 | Wind vane alignment device and alignment method for wind driven generator |
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| CN110632346A (en) * | 2018-11-29 | 2019-12-31 | 北京金风科创风电设备有限公司 | Method, device and system for correcting installation error of wind vane |
| CN110632346B (en) * | 2018-11-29 | 2022-08-26 | 北京金风科创风电设备有限公司 | Method, device and system for correcting installation error of wind vane |
| CN112505355A (en) * | 2020-12-18 | 2021-03-16 | 北京唐浩电力工程技术研究有限公司 | Wind vane alignment device and alignment method for wind driven generator |
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