CN109296506A - A kind of method for detecting vibration of Wind turbines, control method and device - Google Patents
A kind of method for detecting vibration of Wind turbines, control method and device Download PDFInfo
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- CN109296506A CN109296506A CN201811259466.8A CN201811259466A CN109296506A CN 109296506 A CN109296506 A CN 109296506A CN 201811259466 A CN201811259466 A CN 201811259466A CN 109296506 A CN109296506 A CN 109296506A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000002159 abnormal effect Effects 0.000 claims abstract description 36
- 238000011217 control strategy Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 12
- 238000001228 spectrum Methods 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000004364 calculation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000025518 detection of mechanical stimulus involved in sensory perception of wind Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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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
- 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
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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
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
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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
- F05B2270/32—Wind speeds
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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
- F05B2270/334—Vibration measurements
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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)
Abstract
The present invention relates to a kind of method for detecting vibration of Wind turbines, control method and device, pass through acquisition wind generating set vibration signal and wind velocity signal, when judging that abnormal vibration occurs in unit according to the peak value of vibration signal, corresponding turbulence intensity is estimated according to wind velocity signal, judge when turbulence intensity meets and imposes a condition, judge that the abnormal vibration is caused by turbulence intensity, the control strategy of Wind turbines are as follows: based on adjustment direct torque and pitch control decoupling parameter or based on adjustment fitful wind control parameter and pitch control parameter, the control not only carries out being analyzed to determine whether that vibration fault has occurred to collected vibration signal, the turbulence intensity for also considering external wind regime locating for unit influences, enable the analysis to vibration fault comprehensive, accurately carry out, wind is more accurately controlled according to the analysis result for being accurately obtained vibration signal Motor group is beneficial to the operational safety of Wind turbines.
Description
Technical field
The present invention relates to technical field of wind power generation, especially a kind of method for detecting vibration of Wind turbines, control method
And device.
Background technique
With the development of Wind Power Generation Industry, topography is flat, and the high high-quality wind-resources of annual mean wind speed have largely reduced, more next
More wind fields builds the mountain area more complicated in landform, and the operating condition of unit is also more severe, reduces the stability of unit.
The level of vibration of unit is an important indicator for measuring set steady, in normal operation, the vibration index of unit
It is relatively stable, biggish mutation will not be generated or resonated.But when the turbulence intensity of seat in the plane point is larger, control parameter
The vibration of unit just will increase or occur coupled resonance when the improper certain components of perhaps unit occur abnormal, make unit not
The operation of energy normal table.Therefore, for complicated landform unit, the vibration detection of unit and analyze it is extremely important, can be with
By detection and analysis as a result, the control strategy to unit is adjusted, enable unit even running, reduce rack load, extends
Service life.
The wind generating set vibration detection provided in the prior art is largely to detect vibration signal based on vibrating sensor,
For example, Chinese patent Authorization Notice No. is a kind of wind generating set vibration detection disclosed in the patent of invention document of CN102042166B
Device and method is separately positioned on several components of Wind turbines by several shock sensors, only to collected vibration
Signal carries out being analyzed to determine whether that vibration fault has occurred, and does not account for the turbulence intensity shadow of external wind regime locating for unit
It rings, causes the analysis to vibration fault not comprehensive enough, accurate, and then the control strategy for influencing subsequent blower can not correctly be held
Row, fan operation are not sufficiently stable, reliably.
Summary of the invention
The purpose of the present invention is a kind of method for detecting vibration of Wind turbines and devices, to solve current wind generating set vibration
Detection process, which does not account for turbulence intensity influence, causes vibration signal to detect not accurate enough problem；Meanwhile the present invention also provides
A kind of control method and device of Wind turbines, to solve current wind generating set vibration detection process do not account for turbulence intensity
The problem for influencing to cause air-blower control not accurate enough.
In order to realize the vibration detection of Wind turbines, solving current wind generating set vibration detection process, not account for turbulent flow strong
Degree influences that vibration signal is caused to detect not accurate enough problem.The present invention provides a kind of method for detecting vibration of Wind turbines, should
Detection method includes the following steps:
1) wind generating set vibration signal and wind velocity signal are acquired, judges whether unit shakes according to the peak value of vibration signal
It is dynamic abnormal；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges that turbulence intensity is
No satisfaction imposes a condition, if satisfied, then judging that the abnormal vibration is caused by turbulence intensity.
Beneficial effect is that this method not only carries out collected vibration signal to be analyzed to determine whether to have occurred vibration event
Barrier, it is also contemplated that external wind regime locating for unit turbulence intensity influence, enable the analysis to vibration fault comprehensively and accurately
It carries out, is finally accurately obtained the analysis of vibration signal as a result, being beneficial to the operational safety of Wind turbines.
Further, in order to accurately distinguish the cause of abnormal vibration, if turbulence intensity is unsatisfactory for imposing a condition, basis
The rumble spectrum feature of vibration signal and the size of unit intrinsic frequency deviation judge whether abnormal vibration is that generating set resonant vibration causes.
Further, in order to whether extremely accurately identify unit vibration signal, the judgement process of vibration signal exception are as follows:
(1) the AC compounent Vib in vibration signal is extractedAC；
(2) AC compounent T is extractedv0Peak value V in time spanpp；
(3) the first setting time T is calculated1Internal vibration peak value VppMore than setting peak threshold Vpp-limFrequency n；
(4) if the first setting time T1Internal vibration peak value is more than that the frequency n of setting peak threshold is more than the first setting time
Number limit value nmax, then judge unit vibration exception；
Wherein, T1Include several Tv0Period.
Further, in order to which whether the cause of accurate judgement abnormal vibration is that turbulent flow causes, described impose a condition is second
Turbulence intensity is more than that the number of setting intensity threshold is greater than the second setting number limit value in setting time.
Further, in order to reduce the calculation amount of processing, operation time is improved, corresponding turbulent flow is estimated according to wind velocity signal
The estimation mode of intensity is using low-pass first order filter to the flat of the mean wind speed difference in real-time wind speed and certain period of time
Side is filtered, then estimates to obtain turbulence intensity divided by real-time wind speed by turbulent flow wind speed.
In order to realize the vibration control of Wind turbines, solving current wind generating set vibration detection process, not account for turbulent flow strong
Degree influences the problem for causing air-blower control not accurate enough.The present invention provides a kind of control method of Wind turbines, the control method
The following steps are included:
1) wind generating set vibration signal and wind velocity signal are acquired, judges whether unit shakes according to the peak value of vibration signal
It is dynamic abnormal；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges that turbulence intensity is
No satisfaction imposes a condition, if satisfied, then judge that the abnormal vibration is caused by turbulence intensity, the control strategy of Wind turbines are as follows:
Based on air rate adjustment direct torque and pitch control decoupling parameter when being occurred according to unit vibration or adjustment fitful wind control is joined
Based on several and pitch control parameter.
Beneficial effect is that this method not only carries out collected vibration signal to be analyzed to determine whether to have occurred vibration event
Barrier, it is also contemplated that external wind regime locating for unit turbulence intensity influence, enable the analysis to vibration fault comprehensively and accurately
It carries out, Wind turbines is more accurately controlled according to the analysis result for being accurately obtained vibration signal, are beneficial to the fortune of Wind turbines
Row safety.
Further, take same control inaccurate in the case of differing greatly due to wind speed, in order to be precisely controlled wind-powered electricity generation
Unit guarantees safe operation of wind turbine, and when the wind speed when unit vibration occurs is in the first wind speed range, adjusts torque control
Based on system and pitch control decoupling parameter；When wind speed when unit vibration occurs is in the second wind speed range, fitful wind control is adjusted
Based on parameter processed and pitch control parameter, wherein the lower limit air velocity of the second wind speed range is greater than the upper limit wind of the first wind speed range
Speed.
Further, in order to realize the security control to Wind turbines in the case of generating set resonant vibration, if turbulence intensity is unsatisfactory for
It imposes a condition, then whether abnormal vibration is judged according to the size of the rumble spectrum feature of vibration signal and unit intrinsic frequency deviation
Cause for generating set resonant vibration, when being judged as abnormal vibration caused by generating set resonant vibration, then strategy is inhibited using resonance.
Further, in order to whether extremely accurately identify unit vibration signal, the judgement process of vibration signal exception are as follows:
(1) the AC compounent Vib in vibration signal is extractedAC；
(2) AC compounent T is extractedv0Peak value V in time spanpp；
(3) the first setting time T is calculated1Internal vibration peak value VppMore than setting peak threshold Vpp-limFrequency n；
(4) if the first setting time T1Internal vibration peak value is more than that the frequency n of setting peak threshold is more than the first setting time
Number limit value nmax, then judge unit vibration exception；
Wherein, T1Include several Tv0Period.
Further, in order to which whether the cause of accurate judgement abnormal vibration is that turbulent flow causes, described impose a condition is second
Turbulence intensity is more than that the number of setting intensity threshold is greater than the second setting number limit value in setting time.
Further, in order to reduce the calculation amount of processing, operation time is improved, corresponding turbulent flow is estimated according to wind velocity signal
The estimation mode of intensity is using low-pass first order filter to the flat of the mean wind speed difference in real-time wind speed and certain period of time
Side is filtered, then estimates to obtain turbulence intensity divided by real-time wind speed by turbulent flow wind speed.
The present invention provides a kind of vibration detection device of Wind turbines, including memory, processor and is stored in storage
In device and the computer program that can run on a processor, the processor perform the steps of when executing described program
1) wind generating set vibration signal and wind velocity signal are acquired, judges whether unit shakes according to the peak value of vibration signal
It is dynamic abnormal；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges that turbulence intensity is
No satisfaction imposes a condition, if satisfied, then judging that the abnormal vibration is caused by turbulence intensity, the present apparatus is not only to collected vibration
Dynamic signal carries out being analyzed to determine whether that vibration fault has occurred, it is also contemplated that the turbulence intensity shadow of external wind regime locating for unit
It rings, the analysis to vibration fault is comprehensively and accurately carried out, is finally accurately obtained the analysis of vibration signal as a result, having
Beneficial to the operational safety of Wind turbines.
The present invention provides a kind of control device of Wind turbines, including memory, processor and storage are in memory
And the computer program that can be run on a processor, the processor perform the steps of when executing described program
1) wind generating set vibration signal and wind velocity signal are acquired, judges whether unit shakes according to the peak value of vibration signal
It is dynamic abnormal；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges that turbulence intensity is
No satisfaction imposes a condition, if satisfied, then judge that the abnormal vibration is caused by turbulence intensity, the control strategy of Wind turbines are as follows:
Based on air rate adjustment direct torque and pitch control decoupling parameter when being occurred according to unit vibration or adjustment fitful wind control is joined
Based on several and pitch control parameter, the present apparatus not only carries out being analyzed to determine whether to vibrate to collected vibration signal
Failure, it is also contemplated that the turbulence intensity of external wind regime locating for unit influences, and enables the analysis to vibration fault comprehensive, accurate
Progress, Wind turbines are more accurately controlled according to the analysis result for being accurately obtained vibration signal, are beneficial to Wind turbines
Operational safety.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the method for detecting vibration of Wind turbines of the invention；
Fig. 2 is a kind of flow chart of the control method of Wind turbines of the invention.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawing.
Method for detecting vibration embodiment
The present invention provides a kind of method for detecting vibration of Wind turbines, as shown in Figure 1, comprising the following steps:
1) wind generating set vibration signal and wind velocity signal are acquired, judges whether unit shakes according to the peak value of vibration signal
It is dynamic abnormal；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges that turbulence intensity is
No satisfaction imposes a condition, if satisfied, then judging that the abnormal vibration is caused by turbulence intensity.
It is inclined according to the rumble spectrum feature of vibration signal and unit intrinsic frequency if turbulence intensity is unsatisfactory for imposing a condition
The size of difference judges whether abnormal vibration is that generating set resonant vibration causes.
Wherein, vibration acceleration sensor is installed in the cabin mainframe of Wind turbines or tower top flange, can adopts
Collect cabin vibrations signal, anemometer is installed in the nacelle exterior or hub centre of Wind turbines, unit present position can be acquired
Wind velocity signal；The installation site of the sensor and anemometer do not limit to above-mentioned position, can according to actual needs into
Line position sets adjusting, to obtain better measurement result.
Abnormal vibration judges using the peak value of vibration signal as foundation in this method, preferably judges that process is as follows:
(1) the AC compounent Vib in vibration signal is extractedAC。
Particularly, every setting time interval t0The signal for acquiring primary acceleration sensor carries out vibration signal
First-order filtering processing, obtains DC component, extracts vibration signal after vibration signal real value is made difference with its DC component and exchanges
Component VibAC。
(2) AC compounent T is extractedv0Peak value V in time spanpp。
(3) the first setting time T is calculated1Internal vibration peak value VppMore than setting peak threshold Vpp-limFrequency n.
If the first setting time T1Internal vibration peak value is more than that the frequency n of setting peak threshold is more than the first setting number limit
Value nmax, then judge unit vibration exception, wherein T1Include several Tv0Period, according to practical application, it is preferred that t0It takes
10ms~20ms, Tv0Take 10s~30s, T1Take 5min~10min, nmaxIt takes 2~5 times.
Abnormal vibration is to be caused that turbulence intensity is needed to meet setting condition by turbulence intensity in this method, wherein the setting condition
It is greater than the second setting number limit value for the number that turbulence intensity in the second setting time is more than setting intensity threshold, specific as follows:
(1) T is calculatedw0The turbulence intensity I of wind speed in period；
(2) it calculates in the second setting time T2The turbulence intensity I of interior unit is more than setting intensity threshold IlimNumber m；
If m is more than the second setting number limit value mmax, then judge that the vibration of unit is caused by external wind regime, and to outside
Wind regime is analyzed；If m is less than, according to the size of the rumble spectrum feature of vibration signal and unit intrinsic frequency deviation
Judge whether abnormal vibration is that generating set resonant vibration causes, wherein according to practical application, it is preferred that t1Take 1s~2s, Tw0Take 5min
~10min, T2Take 30min~60min, mmaxIt takes 2~4 times.
Estimate that the estimation mode of corresponding turbulence intensity is using low-pass first order filter to real-time wind according to wind velocity signal
Speed square is filtered with the mean wind speed difference in certain period of time, then is estimated by turbulent flow wind speed divided by real-time wind speed
To turbulence intensity.It is followed the steps below according to the estimation mode:
(1) turbulence intensity of the simulation wind used wind field seat in the plane point safety review (or unit design) calculates；
(2) it formulates wind speed-turbulence intensity limit value and corresponds to table, as shown in table 1；
(3) it is calculated by the turbulence intensity that the estimation mode surveys wind to unit；
(4) by tabling look-up, whether the turbulence intensity value for judging to survey wind is more than setting turbulence intensity limit value.
Turbulence intensity is calculated can be substituted using other estimating algorithms, but employed in above-mentioned steps (1) (3)
Estimating algorithm must be consistent.
Table 1
| Wind speed m/s | 4 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | 16 | 18 | 20 |
| Ilim | 30.10 | 23.57 | 21.7 | 20.30 | 19.21 | 18.34 | 17.63 | 17.03 | 16.10 | 15.4 | 14.86 | 14.42 |
Control method embodiment
The present invention provides a kind of control method of Wind turbines, as shown in Figure 2, comprising the following steps:
1) wind generating set vibration signal and wind velocity signal are acquired, judges whether unit shakes according to the peak value of vibration signal
It is dynamic abnormal；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges that turbulence intensity is
No satisfaction imposes a condition, if satisfied, then judge that the abnormal vibration is caused by turbulence intensity, the control strategy of Wind turbines are as follows:
When being occurred according to unit vibration based on air rate adjustment torque PID control and pitch PID control decoupling parameter or adjustment fitful wind control
Based on system starting threshold parameters and pitch control gain parameter.
If abnormal vibration is section locating for wind speed point strategy when being occurred according to unit vibration as caused by turbulence intensity
Control.Particularly, external wind regime analysis is with rated wind speed VrAs reference, when unit vibration occurs in [Vr- 2m/s, Vr+2m/
S] in wind speed range when, the control strategy of Wind turbines is to adjust based on direct torque and pitch control decoupling parameter；Work as machine
Group vibration occurs in (Vr+ 2m/s, Vout) in wind speed range when, the control strategy of Wind turbines is to adjust fitful wind control parameter
Based on pitch control parameter；When wind speed is less than VrWhen -2m/s, to analyze unit mechanical part whether based on exception, such as machine
Group covibration.
It is inclined according to the rumble spectrum feature of vibration signal and unit intrinsic frequency if turbulence intensity is unsatisfactory for imposing a condition
The size of difference judges whether abnormal vibration is that generating set resonant vibration causes, and when being judged as abnormal vibration caused by generating set resonant vibration, then uses
Resonance inhibits strategy.Wherein, vibration frequency specturm analysis passes through Fast Fourier Transform (FFT) first and handles vibration signal, extracts it
Characteristic frequency, if characteristic frequency and the unit intrinsic frequency of unit initial operating stage acquisition are close, for example, vibration performance frequency spectrum and machine
Group intrinsic frequency deviation is in 10% range, then it is assumed that unit generates resonance.When vibration signal neither turbulence intensity cause nor
Generating set resonant vibration then executes shutdown control.
The judgement of abnormal vibration in this control method embodiment, turbulence intensity, which meet, to impose a condition and turbulence intensity is estimated
The mode in above-mentioned method for detecting vibration embodiment can be used in calculation mode etc., and details are not described herein.
Above-mentioned method for detecting vibration and control method can be used corresponding controller and realize that the controller can be existing
Controller realized by changing corresponding control strategy, be also possible to by processor, memory and accordingly run program
The new controller of composition carries out method realization.
Specific embodiment of the present invention is presented above, but the present invention is not limited to described embodiment.
The technological means in above-described embodiment is converted by the way of being readily apparent that those skilled in the art, is replaced,
Modification, and play the role of with the present invention in relevant art means it is essentially identical, realization goal of the invention it is also essentially identical,
The technical solution formed in this way is to be finely adjusted to be formed to above-described embodiment, and this technical solution still falls within protection of the invention
In range.
Claims (10)
1. a kind of method for detecting vibration of Wind turbines, which is characterized in that detection method includes the following steps for this:
1) wind generating set vibration signal and wind velocity signal are acquired, it is different to judge whether unit occurs vibrating according to the peak value of vibration signal
Often；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges whether turbulence intensity is full
Foot imposes a condition, if satisfied, then judging that the abnormal vibration is caused by turbulence intensity.
2. the method for detecting vibration of Wind turbines according to claim 1, which is characterized in that if turbulence intensity is unsatisfactory for setting
Fixed condition, then according to the size of the rumble spectrum feature of vibration signal and unit intrinsic frequency deviation judge abnormal vibration whether be
Generating set resonant vibration causes.
3. a kind of control method of Wind turbines, which is characterized in that the control method the following steps are included:
1) wind generating set vibration signal and wind velocity signal are acquired, it is different to judge whether unit occurs vibrating according to the peak value of vibration signal
Often；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges whether turbulence intensity is full
Foot imposes a condition, if satisfied, then judge that the abnormal vibration is caused by turbulence intensity, the control strategy of Wind turbines are as follows: according to
Unit vibration occur when air rate adjustment direct torque and pitch control decoupling parameter based on or adjustment fitful wind control parameter and
Based on pitch control parameter.
4. the control method of Wind turbines according to claim 3, which is characterized in that the wind speed when unit vibration occurs
When being in the first wind speed range, adjust based on direct torque and pitch control decoupling parameter；Wind speed when unit vibration occurs
When being in the second wind speed range, adjust based on fitful wind control parameter and pitch control parameter, wherein the lower limit of the second wind speed range
Wind speed is greater than the upper limit wind speed of the first wind speed range.
5. the control method of Wind turbines according to claim 4, which is characterized in that if turbulence intensity is unsatisfactory for setting item
Part then judges whether abnormal vibration is unit according to the size of the rumble spectrum feature of vibration signal and unit intrinsic frequency deviation
Resonance causes, and when being judged as abnormal vibration caused by generating set resonant vibration, then inhibits strategy using resonance.
6. the control method of Wind turbines according to claim 5, which is characterized in that the judgement process of vibration signal exception
Are as follows:
(1) the AC compounent Vib in vibration signal is extractedAC；
(2) AC compounent T is extractedv0Peak value V in time spanpp；
(3) the first setting time T is calculated1Internal vibration peak value VppMore than setting peak threshold Vpp-limFrequency n；
(4) if the first setting time T1Internal vibration peak value is more than that the frequency n of setting peak threshold is more than the first setting number limit value
nmax, then judge unit vibration exception；
Wherein, T1Include several Tv0Period.
7. the control method of Wind turbines according to claim 5, which is characterized in that described to impose a condition as the second setting
Turbulence intensity is more than that the number of setting intensity threshold is greater than the second setting number limit value in time.
8. the control method of Wind turbines according to claim 5, which is characterized in that estimated according to wind velocity signal corresponding
The estimation mode of turbulence intensity is using low-pass first order filter to the mean wind speed difference in real-time wind speed and certain period of time
Square be filtered, then estimate to obtain turbulence intensity divided by real-time wind speed by turbulent flow wind speed.
9. a kind of vibration detection device of Wind turbines, including memory, processor and storage in memory and can located
The computer program run on reason device, which is characterized in that the processor performs the steps of when executing described program
1) wind generating set vibration signal and wind velocity signal are acquired, it is different to judge whether unit occurs vibrating according to the peak value of vibration signal
Often；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges whether turbulence intensity is full
Foot imposes a condition, if satisfied, then judging that the abnormal vibration is caused by turbulence intensity.
10. a kind of control device of Wind turbines, including memory, processor and storage are in memory and can be in processor
The computer program of upper operation, which is characterized in that the processor performs the steps of when executing described program
1) wind generating set vibration signal and wind velocity signal are acquired, it is different to judge whether unit occurs vibrating according to the peak value of vibration signal
Often；
If 2) there is vibration signal exception, corresponding turbulence intensity is estimated according to wind velocity signal, judges whether turbulence intensity is full
Foot imposes a condition, if satisfied, then judge that the abnormal vibration is caused by turbulence intensity, the control strategy of Wind turbines are as follows: according to
Unit vibration occur when air rate adjustment direct torque and pitch control decoupling parameter based on or adjustment fitful wind control parameter and
Based on pitch control parameter.
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|---|---|---|---|
| CN201811259466.8A CN109296506B (en) | 2018-10-26 | 2018-10-26 | Vibration detection method, control method and device for wind turbine generator |
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| CN111749855A (en) * | 2019-03-29 | 2020-10-09 | 北京金风科创风电设备有限公司 | Method for identifying high-frequency vibration abnormity on line and programmable logic controller |
| CN111749854A (en) * | 2019-03-27 | 2020-10-09 | 北京金风科创风电设备有限公司 | Protection method and equipment of wind generating set |
| CN111878324A (en) * | 2020-08-28 | 2020-11-03 | 国电联合动力技术有限公司 | Wind power plant tower drum vortex-induced vibration early warning method and early warning system |
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| CN111749854A (en) * | 2019-03-27 | 2020-10-09 | 北京金风科创风电设备有限公司 | Protection method and equipment of wind generating set |
| CN111749854B (en) * | 2019-03-27 | 2022-04-19 | 北京金风科创风电设备有限公司 | Protection method and equipment of wind generating set |
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| CN110332080A (en) * | 2019-08-01 | 2019-10-15 | 内蒙古工业大学 | A kind of fan blade health method of real-time based on resonance response |
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| CN112985578A (en) * | 2019-12-13 | 2021-06-18 | 中车株洲电力机车研究所有限公司 | Wind turbine generator resonance diagnosis method and device |
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| CN111967105B (en) * | 2020-08-18 | 2024-05-28 | 上海华兴数字科技有限公司 | Resonance elimination method and device, readable storage medium and electronic equipment |
| CN111878324A (en) * | 2020-08-28 | 2020-11-03 | 国电联合动力技术有限公司 | Wind power plant tower drum vortex-induced vibration early warning method and early warning system |
| CN112906207B (en) * | 2021-02-01 | 2022-08-05 | 浙江运达风电股份有限公司 | Parameter optimization method for dynamic thrust reduction of wind wheel surface |
| CN112906207A (en) * | 2021-02-01 | 2021-06-04 | 浙江运达风电股份有限公司 | Wind wheel face dynamic thrust reduction technology and parameter optimization method thereof |
| EP4086454A1 (en) * | 2021-05-04 | 2022-11-09 | Wobben Properties GmbH | Wind turbine and method for operating a wind turbine |
| CN115693368A (en) * | 2021-07-23 | 2023-02-03 | 北京科益虹源光电技术有限公司 | Vibration control method and device of double-cavity excimer laser |
| CN115693368B (en) * | 2021-07-23 | 2024-06-04 | 北京科益虹源光电技术有限公司 | Vibration control method and device for dual-cavity excimer laser |
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