CN108150354A - Fan yaw corrects system - Google Patents
Fan yaw corrects system Download PDFInfo
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- CN108150354A CN108150354A CN201711478562.7A CN201711478562A CN108150354A CN 108150354 A CN108150354 A CN 108150354A CN 201711478562 A CN201711478562 A CN 201711478562A CN 108150354 A CN108150354 A CN 108150354A
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- angle
- yaw
- correction
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- 238000012937 correction Methods 0.000 claims abstract description 70
- 238000012360 testing method Methods 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims description 6
- 244000309464 bull Species 0.000 claims description 5
- 201000009482 yaws Diseases 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 35
- 238000010586 diagram Methods 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The embodiment of the invention discloses a kind of fan yaws to correct system, is related to technical field of wind power generation, for solving the problems, such as that the prior art lacks the anticipation mechanism to yaw angle error condition.Fan yaw correction system of the present invention includes：Controller, correction cam counter and electronic switch quantity sensor；For testing real-time yaw angle, controller is connected electronic switch quantity sensor with electronic switch quantity sensor, for obtaining the first test result of electronic switch quantity sensor, and determines torsion cable the first test value of angle according to the first test result；Correction cam counter is used to judge to turn round whether cable angle reaches predetermined angle, predetermined angle, which is less than, turns round cable extreme angles, when torsion cable angle reaches predetermined angle, controller receives the angle arriving signal of correction cam counter transmission, whether the first difference for judging to turn round the first test value of cable angle and predetermined angle is more than the first default difference, if being more than, using predetermined angle as along cable angle, along cable to zero degree, yaw angle is reset.
Description
Technical field
The present invention relates to technical field of wind power generation, and in particular to a kind of fan yaw corrects system.
Background technology
Wind power generating set is the equipment for converting wind energy into electric energy, and yaw system is wind-force hair in wind power generating set
One of important component of motor group for cooperating with the control system of wind power generating set, makes wind power generating set
Always in state windward, wind energy is made full use of.
The calculating of yaw angle is very important part in yaw system, and high-precision yaw angle calculating not only has
It is controlled conducive to yaw, can be also used for less yaw theft-resistant link chain failure rate.For example, accurately yaw angle is conducive to accurately calculate
Go out to turn round cable angle, if the calculating error of yaw angle is larger, easily lead to the calculating error of larger torsion cable angle, so cause because
Practical torsion cable angle is excessive and shortens cable service life.
But it since the prior art lacks the anticipation mechanism to yaw angle error condition, is susceptible to because of yaw angle
Theft-resistant link chain failure is yawed caused by the error of degree.
Invention content
The present invention provides a kind of fan yaw correction system, lacks for solving the prior art to yaw angle error condition
Anticipation mechanism the problem of.
An embodiment of the present invention provides a kind of fan yaws to correct system, including：
Controller, correction cam counter and electronic switch quantity sensor；
The electronic switch quantity sensor is used to test real-time yaw angle, the controller and the electronic switch amount
Sensor is connected, for obtaining the first test result of the electronic switch quantity sensor, and according to first test result
It determines to turn round cable the first test value of angle；
The controller is connected with the correction cam counter, and the correction cam counter turns round cable angle for judgement
Whether predetermined angle is reached, the predetermined angle, which is less than, turns round cable extreme angles, when torsion cable angle reaches the predetermined angle, to
The controller sends angle arriving signal；
When the controller receives the angle arriving signal that the correction cam counter is sent, the torsion cable is judged
Whether the first difference of the first test value of angle and the predetermined angle is more than the first default difference, if being more than, with predetermined angle
For along cable angle, along cable to zero degree, yaw angle is reset.
With reference to first aspect, in the first possible realization method of first aspect, the correction cam counter packet
Include pinion gear, cam and at least one correction mechanical formula limit switch；
The pinion gear and the outer tooth engagement of the yaw bull gear of the fan yaw system, the cam follows described small
The rotation of gear and rotate, when the cam is rotated to target location, the correction mechanical formula limit switch and the cam
Contact；
The controller is connected with the correction mechanical formula limit switch, the correction mechanical formula limit switch according to institute
The contact situation for stating cam sends detection signal to the controller, and the controller is according to the correction mechanical formula limit switch
The detection signal sent determines the angle arriving signal.
The possible realization method of with reference to first aspect the first, in second of possible realization method of first aspect
In, the correction cam counter and the limit cam counter of the fan yaw system share the pinion gear.
Second of possible realization method with reference to first aspect, in the third possible realization method of first aspect
In, the correction cam counter and the limit cam counter of the fan yaw system also share the cam.
The possible realization method of with reference to first aspect the first, second of possible realization method of first aspect and
Any one possible realization method in the third possible realization method of one side, the 4th kind in first aspect are possible
In realization method, the predetermined angle includes left avertence predetermined angle and right avertence predetermined angle；
The correction cam counter includes two correction mechanical formula limit switches, is respectively used to detect the left avertence
Predetermined angle and the right avertence predetermined angle.
With reference to first aspect, the possible realization method of the first of first aspect, first aspect second of possible reality
It is now any one in the 4th kind of possible realization method of mode, the third possible realization method conjunction first aspect of first aspect
The possible realization method of kind, in the 5th kind of possible realization method of first aspect, the predetermined angle is less than the wind turbine
The angle of untying the mooring rope of yaw system.
With reference to first aspect, the possible realization method of the first of first aspect, first aspect second of possible reality
Now the 4th kind of possible realization method and first party of mode, the third possible realization method of first aspect, first aspect
Any one possible realization method in the 5th kind of possible realization method in face, in the 6th kind of possible realization of first aspect
In mode, the correction cam counter further includes slide rheostat；
The slide rheostat is for measuring yaw angle, and the controller is connected with the slide rheostat, for obtaining
The second test result of the slide rheostat is taken, calculate and is exported between first test value and second test value
Second difference when second difference is more than the second default difference, starts alarm, to notify staff's yaw angle error
It is larger.
With reference to first aspect, the possible realization method of the first of first aspect, first aspect second of possible reality
Now the 4th kind of possible realization method, first aspect of mode, the third possible realization method of first aspect, first aspect
The 5th kind of possible realization method and first aspect the 6th kind of possible realization method in any one possible realization side
Formula, in the 7th kind of possible realization method of first aspect, the correction cam counter further includes encoder；
The encoder is for measuring yaw angle, and the controller is connected with the encoder, for obtaining the volume
The third test result of code device, calculates and exports the third difference between first test value and the third test value, when
When the third difference presets difference more than third, start alarm, to notify staff that yaw angle error is larger.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：
The present invention provides a kind of fan yaws to correct system, including controller, correction cam counter and electronic cutting
Close quantity sensor；Electronic switch quantity sensor is used to test real-time yaw angle, controller and electronic switch quantity sensor phase
Even, for obtaining the first test result of electronic switch quantity sensor, and torsion cable angle first is determined according to the first test result
Test value；For correction cam counter for judging to turn round whether cable angle reaches predetermined angle, predetermined angle, which is less than, turns round cable limiting angle
Degree when torsion cable angle reaches predetermined angle, sends angle arriving signal, when controller receives correction cam meter to controller
During the angle arriving signal that number devices are sent, whether judge to turn round the first difference of the first test value of cable angle and predetermined angle more than the
If being more than, using predetermined angle as along cable angle, along cable to zero degree, yaw angle is reset for one default difference.With prior art phase
Than increasing the anticipation mechanism to yaw angle error condition, advantageously reducing and yawed caused by the error of yaw angle
Theft-resistant link chain failure.
Description of the drawings
Fig. 1 is fan yaw correction system one embodiment schematic diagram of the present invention；
Fig. 2 is correction cam counter one embodiment schematic diagram in fan yaw correction system of the present invention；
Fig. 3 is another embodiment schematic diagram of correction cam counter in fan yaw correction system of the present invention；
Fig. 4 is another embodiment schematic diagram of correction cam counter in fan yaw correction system of the present invention；
Fig. 5 is another embodiment schematic diagram of correction cam counter in fan yaw correction system of the present invention.
Specific embodiment
An embodiment of the present invention provides a kind of fan yaws to correct system, for occurring the feelings of large error to yaw angle
Condition is prejudged, and theft-resistant link chain failure is yawed caused by the error of yaw angle to reduce.
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
Term " first ", " second ", " third " in description and claims of this specification and above-mentioned attached drawing, "
The (if present)s such as four " are the objects for distinguishing similar, and specific sequence or precedence are described without being used for.It should manage
The data that solution uses in this way can be interchanged in the appropriate case, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit
In those steps or unit for clearly listing, but may include not listing clearly or for these processes, method, production
The intrinsic other steps of product or equipment or unit.
For yaw system, the yaw angle of wind power generating set is the important parameter of wind power generating set operation,
It is mainly used for the control of wind power generating set and unties the mooring rope.Yaw angle is used to control the cabin of wind power generating set according to wind direction
Rotation, so that wind power generating set is always in state windward.
Cabin can clockwise or counterclockwise, still, in During yaw, and cabin cannot always facing one direction
Rotation, because arranging multi-cable inside the bull gear of cabin bottom, cabin rotatable cable also and then reverses, in order to prevent cable
Torsion is excessively damaged, and the torsion cable angle of cabin is no more than torsion cable extreme angles (generally 800 degree).Cable is turned round in order to prevent
Angle is more than to turn round cable extreme angles, and yaw system is usually provided with limit cam counter, and limit cam counter includes the limit
Cam and 2 limit mechanical formula limit switches, respectively left avertence limit mechanical formula limit switch and right avertence limit mechanical formula limit
Switch, seals in theft-resistant link chain electric loop, when limit cam counter detect turn round cable angle reach turn round cable extreme angles when, can be with
Mechanical limit switch is limited by left or right polar biased to act, triggering theft-resistant link chain breaks failure so that wind power generating set is quick
It shuts down.
But wind power generating set frequent shutdown be easy to cause the system failure, influences generating efficiency, for this reason, it may be necessary to turning round cable
Angle reaches turn round cable extreme angles before (for example reach angle of untying the mooring rope, angle of untying the mooring rope, which is less than, turns round cable extreme angles, generally 650
Degree) just the rotation of control cabin is untied the mooring rope in advance.Since limit cam counter is mechanical switch, whether it is only able to detect current angular
Reach some predetermined angle, real-time angular can not be measured, therefore yaw angle generally use can measure real-time yaw angle
Electronic switch quantity sensor measure yaw angle come judge turn round cable angle whether reach angle of untying the mooring rope.For example, electronic switch
Quantity sensor can select optics close to switch, using the height difference for yawing bull gear tooth so that optical signal difference is come work
Make, acquire optical signal and count.Optics calculates yaw angle close to switch according to umber of pulse, easily navigates in left drift and right avertence
It generates in the process and calculates error, when wind turbine constantly yaws to the left and to the right, easily accumulate the error, error is caused gradually to increase
Greatly, to a certain extent, controller is tight according to the yaw angle that the test data of electronic switch quantity sensor records for the accumulation of error
It is distorted again, yaw angle and the practical cable angle of turning round for eventually leading to measurement are inconsistent, and cable angle can not actually turned round by being easy to cause
Reach and untie the mooring rope in time when untying the mooring rope angle, quoting theft-resistant link chain so as to triggering limit switch breaks failure so that wind power generating set is shut down.
As it can be seen that it needs to prejudge the error condition of yaw angle, to reduce caused by the error of yaw angle
Yaw theft-resistant link chain failure.For this purpose, the embodiment of the present invention provides a kind of fan yaw correction system, referring to Fig. 1, the present invention is implemented
Wind turbine drift correction system one embodiment includes in example：
Controller 1, correction cam counter 2 and electronic switch quantity sensor 3；Electronic switch quantity sensor 3 is used to survey
Real-time yaw angle is tried, controller 1 is connected with electronic switch quantity sensor 3, for obtaining the of electronic switch quantity sensor 3
One test result, and torsion cable the first test value of angle is determined according to the first test result；Controller 1 and correction cam counter 2
It is connected, for correction cam counter 2 for judging to turn round whether cable angle reaches predetermined angle, predetermined angle, which is less than, turns round cable limiting angle
When torsion cable angle reaches predetermined angle, angle arriving signal is sent to controller 1 for degree；When controller 1 receives correction cam
During the angle arriving signal that counter 2 is sent, judge whether turn round the first test value of cable angle and the first difference of predetermined angle surpasses
The first default difference is crossed, if being more than, using predetermined angle as along cable angle, along cable to zero degree, yaw angle is reset.Specifically,
Alarm can be started, it is by staff along cable to zero degree, yaw angle is clear to notify staff that yaw angle error is larger
Zero.Alternatively, it is more intelligent, system can be corrected by fan yaw automatically along cable to zero degree, yaw angle is reset.
Preferably, referring to Fig. 2, correction cam counter 2 can include pinion gear 201, cam 202 and at least one school
Just mechanical limit switch 203, pinion gear 201 and the outer tooth engagement of yaw bull gear, cam 202 follow pinion gear 201 to rotate
And rotate, when cam 202 is rotated to a certain position, correction mechanical formula limit switch 203 is contacted with cam 202；Controller 1 with
Correction mechanical formula limit switch 203 is connected, and correction mechanical formula limit switch 203 is according to the contact situation with cam 202 to control
Device 1 sends detection signal, and controller 1 determines that angle reaches letter according to the detection signal that correction mechanical formula limit switch 203 is sent
Number.
Preferably, predetermined angle includes left avertence predetermined angle and right avertence predetermined angle, and correction cam counter 2 includes two
Correction mechanical formula limit switch 203 detects left avertence predetermined angle and right avertence predetermined angle respectively.
Preferably, as shown in figure 3, correction cam counter 2 can include two cams 202, one of cam 202
It is matched with a correction mechanical formula limit switch 203, turns round whether cable angle reaches left avertence predetermined angle for detecting, another
Cam 202 is wanted to coordinate with another correction mechanical formula limit switch 203, turns round whether cable angle reaches right avertence preset angle for detecting
Degree.
Preferably, for discovery yaw angle error condition as early as possible, more disposition durations are reserved for staff, in advance
If angle can be less than angle of untying the mooring rope, for example can be set as 600 degree.
Correction cam counter 2 can be other than limit cam counter, newly-increased cam counter.Optionally, school
Positive cam counter 2 can also share cam 202 and pinion gear 201 with limit cam counter or only share pinion gear
201, respectively using different cams.
Preferably, in order to get yaw angle error condition at any time, by taking the corresponding correction cam counters of Fig. 3 as an example,
As shown in figure 4, slide rheostat 204 can be added in correction cam counter 2, measured and yawed using slide rheostat 204
Angle, controller 1 are connected with slide rheostat 204, for obtaining the second test result of slide rheostat 204, calculate and defeated
Go out the second difference between the first test value and the second test value, when the second difference is more than the second default difference, start alarm,
To notify staff that yaw angle error is larger.Or, it is preferred that in order to get yaw angle error condition at any time, with
For the corresponding correction cam counters of Fig. 3, as shown in figure 5, encoder 205 can be added in correction cam counter 2, profit
Yaw angle is measured with encoder 205, controller 1 is connected with encoder 205, for obtaining the third of encoder 205 test knot
Fruit calculates and exports the third difference between the first test value and third test value, when third difference presets difference more than third
When, start alarm, to notify staff that yaw angle error is larger.Later, staff can will yaw along cable to 0 degree
Angle is reset.
Through the above scheme, it can prevent from turning round the generation of cable faults frequent, reduce the damage of yawing speed reducer and yaw motor,
And the abrasion of yaw brake lining is reduced, while reduce frequently impact of the gyroscopic torque to transmission chain caused by yaw.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit can refer to the corresponding process in preceding method embodiment, and details are not described herein.
In several embodiments, it should be understood that disclosed system, device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only a kind of
Division of logic function, can there is an other dividing mode in actual implementation, such as multiple units or component can combine or can
To be integrated into another system or some features can be ignored or does not perform.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
Component may or may not be physical unit, you can be located at a place or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of this embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
More than, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to aforementioned reality
Example is applied the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment modifies or carries out equivalent replacement to which part technical characteristic；And these are changed
Or it replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of fan yaw corrects system, applied to fan yaw system, which is characterized in that including：
Controller, correction cam counter and electronic switch quantity sensor；
For testing real-time yaw angle, the controller senses the electronic switch quantity sensor with the electronic switch amount
Device is connected, and for obtaining the first test result of the electronic switch quantity sensor, and is determined according to first test result
Turn round cable the first test value of angle；
The controller is connected with the correction cam counter, and the correction cam counter is used to judge whether turn round cable angle
Reach predetermined angle, the predetermined angle, which is less than, turns round cable extreme angles, when turning round cable angle and reaching the predetermined angle, to described
Controller sends angle arriving signal；
When the controller receives the angle arriving signal that the correction cam counter is sent, the torsion cable angle is judged
Whether the first difference of the first test value and the predetermined angle is more than the first default difference, if being more than, using predetermined angle to be suitable
Along cable to zero degree, yaw angle is reset for cable angle.
2. fan yaw according to claim 1 corrects system, which is characterized in that the correction cam counter includes small
Gear, cam and at least one correction mechanical formula limit switch；
The pinion gear and the outer tooth engagement of the yaw bull gear of the fan yaw system, the cam follow the pinion gear
Rotation and rotate, when the cam is rotated to target location, the correction mechanical formula limit switch and the cam contact；
The controller is connected with the correction mechanical formula limit switch, the correction mechanical formula limit switch according to it is described convex
The contact situation of wheel sends detection signal to the controller, and the controller is sent according to the correction mechanical formula limit switch
The detection signal determine the angle arriving signal.
3. fan yaw according to claim 2 corrects system, which is characterized in that the correction cam counter with it is described
The limit cam counter of fan yaw system shares the pinion gear.
4. fan yaw according to claim 3 corrects system, which is characterized in that the correction cam counter with it is described
The limit cam counter of fan yaw system also shares the cam.
5. fan yaw according to any one of claim 2 to 4 corrects system, which is characterized in that the predetermined angle
Including left avertence predetermined angle and right avertence predetermined angle；
The correction cam counter includes two correction mechanical formula limit switches, is respectively used to detect the left avertence and preset
Angle and the right avertence predetermined angle.
6. fan yaw according to any one of claim 1 to 4 corrects system, which is characterized in that the predetermined angle
Less than the angle of untying the mooring rope of the fan yaw system.
7. fan yaw according to any one of claim 1 to 4 corrects system, which is characterized in that the correction cam
Counter further includes slide rheostat；
The slide rheostat is for measuring yaw angle, and the controller is connected with the slide rheostat, for obtaining
The second test result of slide rheostat is stated, calculates the second difference between first test value and second test value,
When second difference is more than the second default difference, start alarm, to notify staff that yaw angle error is larger.
8. fan yaw according to any one of claim 1 to 4 corrects system, which is characterized in that the correction cam
Counter further includes encoder；
The encoder is for measuring yaw angle, and the controller is connected with the encoder, for obtaining the encoder
Third test result, the third difference between first test value and the third test value is calculated, when the third is poor
It is different when presetting difference more than third, start alarm, to notify staff that yaw angle error is larger.
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| CN201711478562.7A CN108150354B (en) | 2017-12-29 | 2017-12-29 | Fan driftage correction system |
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| CN201711478562.7A CN108150354B (en) | 2017-12-29 | 2017-12-29 | Fan driftage correction system |
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| CN108150354B CN108150354B (en) | 2019-12-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966920A (en) * | 2018-09-29 | 2020-04-07 | 北京金风科创风电设备有限公司 | Twisted cable detection method and system of wind generating set |
| CN111692963A (en) * | 2019-03-15 | 2020-09-22 | 和硕联合科技股份有限公司 | Angle sensor calibration method and angle sensor calibration device |
| CN112727676A (en) * | 2020-12-31 | 2021-04-30 | 国投白银风电有限公司 | Device for quickly adjusting yaw cam switch of wind generating set |
| EP3933190A1 (en) * | 2020-06-30 | 2022-01-05 | Siemens Gamesa Renewable Energy A/S | Rotation limit detector |
| CN114061631A (en) * | 2020-07-29 | 2022-02-18 | 中车株洲电力机车研究所有限公司 | Megawatt fan yaw counter adjustment testing device and method |
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| CN103967720A (en) * | 2014-04-08 | 2014-08-06 | 大唐国际发电股份有限公司张家口发电厂 | Automatic check device for twisted cable sensor of yaw system of wind turbine generator system |
| CN205445897U (en) * | 2015-12-25 | 2016-08-10 | 上海致远绿色能源股份有限公司 | Use automation in aerogenerator device that unties mooring rope |
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