CN110529335A - Control method and wind power generating set for inhibiting blower to exceed the speed limit - Google Patents
Control method and wind power generating set for inhibiting blower to exceed the speed limit Download PDFInfo
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- CN110529335A CN110529335A CN201910930535.1A CN201910930535A CN110529335A CN 110529335 A CN110529335 A CN 110529335A CN 201910930535 A CN201910930535 A CN 201910930535A CN 110529335 A CN110529335 A CN 110529335A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 11
- 230000001133 acceleration Effects 0.000 claims abstract description 53
- 230000008859 change Effects 0.000 claims abstract description 44
- 230000009466 transformation Effects 0.000 abstract description 12
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction 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
-
- 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
- F05B2270/10—Purpose of the control system
- F05B2270/101—Purpose of the control system to control rotational speed (n)
- F05B2270/1011—Purpose of the control system to control rotational speed (n) to prevent overspeed
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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 embodiment provides a kind of control methods and wind power generating set for inhibiting blower to exceed the speed limit, and are related to wind power generation field, and control method includes: to obtain the actual speed value and actual acceleration value of wind power generating set.Change is marked by the first preset rules to actual speed value and actual acceleration value to handle, and obtains per unit value.Per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules, obtain the control parameter for controlling pitch angle value rate of change, wherein the first parameter preset is less than the second parameter preset.The pitch angle value of wind power generating set is adjusted according to control parameter and third preset rules.The control method can effectively improve the slower problem of pitch angle value transformation rate of wind power generating set.
Description
Technical field
The present invention relates to wind power generation field, in particular to a kind of control method for inhibiting blower to exceed the speed limit and
Wind power generating set.
Background technique
Using more universal for speed-variable frequency-constant wind-driven generator group, at present wind power generating set meeting in wind-force electric discharge unit
According to extraneous wind friction velocity, change the pitch angle value of itself by internal pitch-controlled system, to prevent blower from occurring exceeding the speed limit
Situation.
But in the prior art, when wind speed, which increases turbulence intensity, to be increased, due to the variable pitch of wind power generating set
Rate is slower, so that the pitch rate of wind power generating set lags far behind the rate of change of wind speed, to be easy to appear wind-force
The case where generating set exceeds the speed limit, is unfavorable for the stable operation of blower.
Summary of the invention
The purpose of the present invention includes, for example, providing a kind of control method for inhibiting blower to exceed the speed limit, the control method
The slower problem of wind generating set pitch control rate can effectively be improved.
The purpose of the present invention includes, for example, additionally providing a kind of wind power generating set, which can be effective
Improve the slower problem of wind generating set pitch control rate.
The embodiment of the present invention this can be implemented so that
In a first aspect, the embodiment of the present invention provides a kind of control method for inhibiting blower to exceed the speed limit, the control method
Include:
Obtain the actual speed value and actual acceleration value of wind power generating set;
Change is marked by the first preset rules to the actual speed value and the actual acceleration value to handle, and is marked
Value;
The per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules, obtained for controlling
The control parameter of pitch angle value rate of change processed, wherein first parameter preset is less than second parameter preset;
The pitch angle value of the wind power generating set is adjusted according to the control parameter and third preset rules.
In alternative embodiments, first preset rules are as follows:
Wherein, ε is the per unit value;E is the difference of the actual speed value and preset rotation speed value;ω0For preset rotation speed
Value range;For the actual acceleration value;For predetermined acceleration maximum value.
In alternative embodiments, the control parameter includes kp, ki and kd, the third preset rules are as follows:
For the rate of change of the pitch angle value;E is the difference of the actual speed value and preset rotation speed value;For institute
State actual acceleration value;ForValue after differential.
In alternative embodiments, first parameter preset is kp1, second parameter preset is kp2, kp2>kp1,
The control parameter is kp;
Second preset rules include:
kp=ε * kp2+(1-ε)kp1。
In alternative embodiments, described that the wind-power electricity generation is adjusted according to the control parameter and third preset rules
The step of pitch angle value of unit, comprising:
WhenWhen increase, make kpIncrease.
In alternative embodiments, first parameter preset is ki1, second parameter preset is ki2, ki2>ki1,
The per unit value is ε, and the control parameter is ki;
Second preset rules include:
ki=ε * ki2+(1-ε)ki1。
In alternative embodiments, described that the wind-power electricity generation is adjusted according to the control parameter and third preset rules
The step of pitch angle value of unit, comprising:
When e increases, make kiIncrease.
In alternative embodiments, first parameter preset is kd1, second parameter preset is kd2, kd2>kd1,
The per unit value is ε, and the control parameter is kd;
Second preset rules include:
kd=ε * kd2+(1-ε)kd1。
In alternative embodiments, first parameter preset includes kp1、ki1And kd1, the second parameter preset packet
Include kp2、ki2And kd2, kp2>kp1, ki2>ki1, kd2>kd1, the per unit value is ε, and the control parameter includes kp、kiAnd kd;
Second preset rules include:
kp=ε * kp2+(1-ε)kp1
ki=ε * ki2+(1-ε)ki1
kd=ε * kd2+(1-ε)kd1。
Second aspect, the embodiment of the present invention provide a kind of wind power generating set, including velocity sensor, acceleration transducer
And controller, the controller are communicated with the velocity sensor and the acceleration transducer simultaneously;
The velocity sensor is used to obtain the actual speed value of wind power generating set, and the acceleration transducer is for obtaining
Take the actual acceleration value of the wind power generating set;
The controller is for being marked the actual speed value and the actual acceleration value by the first preset rules
Change processing, obtains per unit value, and the per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules,
The control parameter for controlling pitch angle value rate of change is obtained, according to the control parameter and the adjusting of third preset rules
The pitch angle value of wind power generating set, wherein first parameter preset is less than second parameter preset.
The beneficial effect of the embodiment of the present invention includes, for example:
The embodiment provides a kind of control methods for inhibiting blower to exceed the speed limit, it is to be understood that extraneous
Wind speed is bigger, and turbulence intensity is bigger, and the tachometer value and acceleration value of wind power generating set are bigger.That is wind power generating set
Tachometer value and the size of acceleration figure can characterize extraneous turbulence intensity.Revolving speed of the control method based on wind power generating set
Value and acceleration value in conjunction with the first parameter preset and the second parameter preset obtain control parameter, to change the change of pitch angle value
Change rate.Enable wind power generating set according to the variation of wind speed, quickly makes a change the reaction of pitch angle value.The controlling party
Method can effectively improve the slower problem of wind generating set pitch control rate.
The embodiments of the present invention also provide a kind of wind power generating sets, it is to be understood that extraneous air speed value is bigger, rapid
Intensity of flow is larger, and the tachometer value and acceleration value of wind power generating set are bigger.That is the tachometer value of wind power generating set and
The size of acceleration figure can characterize extraneous turbulence intensity.Tachometer value of the wind power generating set based on wind power generating set itself
And acceleration value obtains control parameter in conjunction with the first parameter preset and the second parameter preset, to change the variation of pitch angle value
Rate.Enable wind power generating set according to the variation of wind speed, quickly makes a change the reaction of pitch angle value.The wind-power electricity generation
Unit can effectively improve the slower problem of wind generating set pitch control rate.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the flow chart of the control method provided in an embodiment of the present invention for inhibiting blower to exceed the speed limit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In addition, being only used for distinguishing description if there is term " first ", " second " etc., it is not understood to indicate or imply phase
To importance.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention can be combined with each other.
Fig. 1 is please referred to, a kind of control method (controlling party hereinafter for inhibiting blower to exceed the speed limit is present embodiments provided
Method), which includes:
S11: the actual speed value and actual acceleration value of wind power generating set are obtained;
S12: change is marked by the first preset rules to actual speed value and actual acceleration value and is handled, per unit value is obtained;
S13: per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules, obtained for controlling
The control parameter of pitch angle value rate of change processed, the first parameter preset is less than the second parameter preset;
S14: the pitch angle value of wind power generating set is adjusted according to control parameter and third preset rules.
It is understood that in actual use, extraneous wind speed is bigger, and turbulence intensity is bigger, wind power generating set
Values for actual speed and actual acceleration value can also increase accordingly.That is, the size of values for actual speed and practical acceleration figure
Extraneous turbulence intensity can be characterized.
It should be noted that in the present embodiment, turbulence intensity for describe wind speed at any time with the degree of spatial variations,
Reflect the relative intensity of wind speed.
It is understood that in the present embodiment, the control parameter for controlling pitch angle value pace of change includes to become
Measure actual speed value and variable actual acceleration value.That is, the control method can add according to actual speed value and reality
The variation of speed value, adjusts the transformation rate of pitch angle value in real time.So that wind power generating set can according to the variation of wind speed,
Quickly make a change the response of pitch angle value.It is slower that the control method can effectively improve wind generating set pitch control rate
Problem.
It should be noted that in actual use, after changing pitch angle value, with the increase of wind speed, turbulence intensity
Increase, using the control method in the present embodiment, the rotation speed change rate and acceleration of wind power generating set can be effectively reduced
Rate of change is spent, to reach the revolving speed quickly raised effect for inhibiting wind power generating set, wind power generating set is reduced and exists
In the biggish situation of turbulence intensity, there is the probability of over speed of rotation.
Specifically, in the present embodiment, the first preset rules are as follows:
Wherein, ε is per unit value;E is the difference of actual speed value and preset rotation speed value;ω0For preset rotation speed value range;
For actual acceleration value;For predetermined acceleration maximum value.
It should be noted that in the present embodiment, ω0For preset rotation speed value range, wind power generating set is characterized normal
Rotation speed change range under turbulent flow wind regime.For predetermined acceleration maximum value, wind power generating set is characterized in normal turbulent wind
The variation range of acceleration under condition.E is the difference of actual speed value and preset rotation speed value, and preset rotation speed value therein is normal
Tachometer value under turbulent flow wind regime.Preset rotation speed value, ω0WithIt can be come out in normal turbulent flow wind regime, here just not
It repeats again.
It should be noted that above-mentioned normal turbulent flow wind regime is the wind regime that turbulence intensity is 0.14.
It should be noted that in other embodiments, the e in the first preset rules, which can also be replaced with directly, to be got
Actual speed value.
In the present embodiment, control parameter includes kp、kiAnd kd, third preset rules are as follows:
For the rate of change (i.e. pitch rate) of pitch angle value;E is the difference of actual speed value and preset rotation speed value;
For the actual acceleration value;ForValue after differential.
Referring to the formula in third preset rules, it is to be understood that change kpSize, can changeSize, from
And the transformation rate of pitch angle value can be changed.Similar, change kiSize, the transformation rate of pitch angle value can be changed.
Change kdSize, can equally change the transformation rate of pitch angle value.
It should be noted that in the present embodiment, the first parameter preset includes kp1、ki1And kd1, the second parameter preset includes
kp2、ki2And kd2, kp2>kp1, ki2>ki1, kd2>kd1, per unit value ε, control parameter includes kp、kiAnd kd;
Second preset rules include:
kp=ε * kp2+(1-ε)kp1
ki=ε * ki2+(1-ε)ki1
kd=ε * kd2+(1-ε)kd1。
It is understood that in the present embodiment, the second preset rules are that per unit value ε is combined to the first parameter preset and the
Two parameter presets carry out interpolation processing.According to the size of ε value, according to second between the first parameter preset and the second parameter preset
Preset rules take a control parameter appropriate, adjust the transformation rate of pitch angle value.
That is, when ε value is larger (when relative to 0 close to 1), according to the formula of the first preset rules it is found that at this time
Actual speed value and/or acceleration value it is larger.In this way, according to the second preset rules it is found that obtained new control parameter kp
It is more nearly kp2、kiIt is more nearly ki2、kdIt is more nearly kd2, in conjunction with third preset rules it is found that can adjust faster at this time
Pitch angle value.
It should be noted that in the present embodiment, per unit value, the first parameter preset and the second parameter preset are pre- according to second
If rule carries out interpolation processing, during obtaining new control parameter, the first parameter preset and the second parameter preset are realized
Between smooth conversion, ensure that the stationarity in whole process.
It is worth noting that, in the present embodiment, adjusting wind power generating set according to control parameter and third preset rules
Pitch angle value the step of, comprising:
WhenWhen increase, make kpIncrease.
The step of adjusting the pitch angle value of wind power generating set according to control parameter and third preset rules, further includes:
When e increases, make kiIncrease.
It is understood thatNumerically with actual acceleration valueIt is equal,When increase, it is meant that wind power generating set
Actual acceleration value it is larger, at this point, in the present embodiment, by suitably increasing kp, and then the change of pitch angle value can be increased
Change rate.
Similar, e is the difference of actual speed value and preset rotation speed value, when e increases, it is meant that the reality of wind power generating set
Border tachometer value is larger, at this point, in the present embodiment, by suitably increasing ki, and then the rate of change of pitch angle value can be increased.
In such manner, it is possible to be directed to the size of tachometer value and acceleration value respectively, control pitch angle value transformation rate has different journeys
The change of degree, specific aim is stronger, is effectively increased the transformation rate of pitch angle value, reduces the risk of blower hypervelocity.
Specifically, it should be noted that in the present embodiment, in the case where e increases, when actual speed value ω is less than
ω1* when 1.01, make ki=ε * ki2+(1-ε)ki1.When ω is more than ω1* when 1.01, make ki'=Gain2*ki, at this point, kiTo pass through
The value that second preset rules interpolation obtains, and ki' it is the value substituted into third preset rules, that is, by the k in third preset rulesi
Replace with ki’。
Wherein,ω*For preset rotation speed value, ω0For preset rotation speed value range,And limit 1≤Gain2≤3。
In addition, in the present embodiment, InIn the case where increase, when actual acceleration value(in mathematical relationship) not
It is more thanWhen, make kp=ε * kp2+(1-ε)kp1, when actual acceleration valueIt is more thanWhen, make kp'=
Gain1*kp, at this point, kpFor the value obtained by the second preset rules interpolation, and kp' it is the value substituted into third preset rules,
That is, by the k in third preset rulespReplace with kp’。
Wherein,For predetermined acceleration maximum value,And limit 1≤Gain1≤3。
In such manner, it is possible to targetedly be adjusted according to tachometer value and acceleration value in different range to pitch rate.
It of courses, in other embodiments, whenIt, can also be by adjusting k when increased, and then increase the change of pitch angle value
Change rate.
In addition, in other embodiments, whenIt, can also be to k when increase or e increasepAnd kiIt carries out while adjusting, Jin Erzeng
The rate of change of big pitch angle value.
It should be noted that wherein under a kind of embodiment, the first parameter preset is k in other embodimentsp1, second
Parameter preset is kp2, kp2>kp1, control parameter kp;
Second preset rules include:
kp=ε * kp2+(1-ε)kp1;
It is understood that under such embodiment, eitherIncrease or e increases, it can be by adjusting kpTo adjust
Save the transformation rate of pitch angle value.
In other embodiments, wherein under another embodiment, the first parameter preset is ki1, the second parameter preset is
ki2, ki2>ki1, per unit value ε, control parameter ki;
Second preset rules include:
ki=ε * ki2+(1-ε)ki1;
It is understood that under such embodiment, eitherIncrease or e increases, it can be by adjusting kiTo adjust
Save the transformation rate of pitch angle value.
In other embodiments, wherein under another embodiment, the first parameter preset is kd1, the second parameter preset is
kd2, kd2>kd1, per unit value ε, control parameter kd;
Second preset rules include:
kd=ε * kd2+(1-ε)kd1;
It is understood that under such embodiment, eitherIncrease or e increases, it can be by adjusting kdTo adjust
Save the transformation rate of pitch angle value.
The present embodiment also provides a kind of wind power generating set, including velocity sensor, acceleration transducer and controller, control
Device processed is communicated with velocity sensor and acceleration transducer simultaneously;
Velocity sensor is used to obtain the actual speed value of wind power generating set, and acceleration transducer is for obtaining wind-force hair
The actual acceleration value of motor group;
Controller is used to mark change by the first preset rules to actual speed value and actual acceleration value and handle, and is marked
Per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules, are obtained for controlling propeller pitch angle by value
It is worth the control parameter of rate of change, the pitch angle value of wind power generating set is adjusted according to control parameter and third preset rules,
In, the first parameter preset is less than the second parameter preset.
Tachometer value and acceleration value of the wind power generating set based on wind power generating set itself, in conjunction with the first parameter preset
With the second parameter preset, control parameter is obtained, to change the rate of change of pitch angle value.Enable wind power generating set root
According to the variation of wind speed, the reaction of pitch angle value is quickly made a change.The wind power generating set can effectively improve wind-power electricity generation
The slower problem of the pitch angle value transformation rate of unit.To reduce wind power generating set when turbulence intensity is larger, occur
The probability of over speed of rotation.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of control method for inhibiting blower to exceed the speed limit, which is characterized in that the control method includes:
Obtain the actual speed value and actual acceleration value of wind power generating set;
Change is marked by the first preset rules to the actual speed value and the actual acceleration value to handle, and obtains per unit value;
The per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules, obtained for controlling paddle
The control parameter of elongation value rate of change, wherein first parameter preset is less than second parameter preset;
The pitch angle value of the wind power generating set is adjusted according to the control parameter and third preset rules.
2. control method according to claim 1, which is characterized in that first preset rules are as follows:
0≤ε≤1;
Wherein, ε is the per unit value;E is the difference of the actual speed value and preset rotation speed value;ω0For preset rotation speed range
Value;For the actual acceleration value;For predetermined acceleration maximum value.
3. control method according to claim 2, which is characterized in that the control parameter includes kp、kiAnd kd, described
Three preset rules are as follows:
For the rate of change of the pitch angle value;E is the difference of the actual speed value and preset rotation speed value;For the reality
Acceleration value;ForValue after differential.
4. control method according to claim 3, which is characterized in that first parameter preset is kp1, described second is pre-
Setting parameter is kp2, kp2>kp1, the control parameter is kp;
Second preset rules include:
kp=ε * kp2+(1-ε)kp1。
5. control method according to claim 4, which is characterized in that described according to the control parameter and the default rule of third
The step of then adjusting the pitch angle value of the wind power generating set, comprising:
WhenWhen increase, make kpIncrease.
6. control method according to claim 3, which is characterized in that first parameter preset is ki1, described second is pre-
Setting parameter is ki2, ki2>ki1, the per unit value is ε, and the control parameter is ki;
Second preset rules include:
ki=ε * ki2+(1-ε)ki1。
7. control method according to claim 6, which is characterized in that described according to the control parameter and the default rule of third
The step of then adjusting the pitch angle value of the wind power generating set, comprising:
When e increases, make kiIncrease.
8. control method according to claim 3, which is characterized in that first parameter preset is kd1, described second is pre-
Setting parameter is kd2, kd2>kd1, the per unit value is ε, and the control parameter is kd;
Second preset rules include:
kd=ε * kd2+(1-ε)kd1。
9. control method according to claim 3, which is characterized in that first parameter preset includes kp1、ki1And kd1,
Second parameter preset includes kp2、ki2And kd2, kp2>kp1, ki2>ki1, kd2>kd1, the per unit value is ε, the control parameter
Including kp、kiAnd kd;
Second preset rules include:
kp=ε * kp2+(1-ε)kp1
ki=ε * ki2+(1-ε)ki1
kd=ε * kd2+(1-ε)kd1。
10. a kind of wind power generating set, which is characterized in that including velocity sensor, acceleration transducer and controller, the control
Device processed is communicated with the velocity sensor and the acceleration transducer simultaneously;
The velocity sensor is used to obtain the actual speed value of wind power generating set, and the acceleration transducer is for obtaining institute
State the actual acceleration value of wind power generating set;
The controller is for being marked at change the actual speed value and the actual acceleration value by the first preset rules
Reason, obtains per unit value, and the per unit value, the first parameter preset and the second parameter preset are handled by the second preset rules, obtained
For controlling the control parameter of pitch angle value rate of change, the wind-force is adjusted according to the control parameter and third preset rules
The pitch angle value of generating set, wherein first parameter preset is less than second parameter preset.
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Cited By (3)
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CN112523941A (en) * | 2020-11-25 | 2021-03-19 | 明阳智慧能源集团股份公司 | Control method and module for preventing wind generating set from overspeed |
CN112855434A (en) * | 2021-01-29 | 2021-05-28 | 三一重能股份有限公司 | Control method and device for wind turbine generator blade, electronic equipment and storage medium |
CN113982826A (en) * | 2021-10-29 | 2022-01-28 | 中国船舶重工集团海装风电股份有限公司 | Variable pitch control method and system for wind generating set |
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