CN105134486B - Wind turbines Poewr control method, apparatus and system - Google Patents
Wind turbines Poewr control method, apparatus and system Download PDFInfo
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- CN105134486B CN105134486B CN201510521196.3A CN201510521196A CN105134486B CN 105134486 B CN105134486 B CN 105134486B CN 201510521196 A CN201510521196 A CN 201510521196A CN 105134486 B CN105134486 B CN 105134486B
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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
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Abstract
A kind of Wind turbines Poewr control method of offer of the embodiment of the present invention, apparatus and system, method include：Wind turbines power control procedures are periodically executed, which includes：Obtain Wind turbines rotating speed；If Wind turbines rotating speed is not less than rated rotational frequency, the rated power for adjusting current Wind turbines is maximum rated power；If current Wind turbines propeller pitch angle is more than predetermined threshold value or average output power not less than design rated power, the rated speed for adjusting current Wind turbines is design rated speed；If current Wind turbines rotating speed reaches design rated speed, the rated power for adjusting current Wind turbines is design rated power, and terminates this Wind turbines power control procedures.Technical scheme of the present invention effectively increases generated energy and the safety of Wind turbines without increasing hardware cost.
Description
Technical field
The present invention relates to technical field of wind power more particularly to a kind of Wind turbines Poewr control method, apparatus and systems.
Background technology
With the continuous ripe and development of wind power technology, feather technology is in Large-scale Wind Turbines (referred to as " wind turbine
Group ") in be more widely applied, superiority is shown：Wind energy conversion system reliability of operation and high can be improved
Power coefficient and the power delivery constant curve continued to optimize, Wind turbines can be improved using the wind energy conversion system of variable pitch technology
Reliability and generated energy.
But the variable pitch control technology of currently available technology has the following problems：It needs to obtain arrives stream wind speed, according to leaf
Tip-speed ratio adjusts blade pitch angle, and there are certain errors for wind speed acquisition, and is existed according to air rate adjustment propeller pitch angle and lagged, to carrying
The effect of high generated energy is limited；Meanwhile when variable pitch action is more, the generated energy loss caused by turbulent flow is larger.Therefore, it studies
A kind of effective Wind turbines Poewr control method, it is most important to the generated energy for improving Wind turbines.
Invention content
A kind of Wind turbines Poewr control method of present invention offer, apparatus and system, to improve the generated energy of Wind turbines.
In order to achieve the above objectives, a kind of Wind turbines Poewr control method, including periodically execute Wind turbines power
Control flow, the Wind turbines power control procedures include：Obtain Wind turbines rotating speed；If the Wind turbines rotating speed is not small
In rated rotational frequency, the rated power for adjusting current Wind turbines is preset maximum rated power；If current Wind turbines pitch
Angle is more than predetermined threshold value or average output power not less than design rated power, and the rated speed for adjusting current Wind turbines is
Design rated speed；If current Wind turbines rotating speed reaches the design rated speed, the specified work(of current Wind turbines is adjusted
Rate is the design rated power, and terminates this Wind turbines power control procedures.
The Wind turbines power control device, described device include：Rotating speed acquisition module turns for obtaining Wind turbines
Speed；First power conditioning module is connect with the rotating speed acquisition module, for turning not less than standard in the Wind turbines rotating speed
When fast, the rated power for adjusting current Wind turbines is preset maximum rated power；First rotational speed regulation module, with described
One power conditioning module connects, for being not less than more than predetermined threshold value or average output power in current Wind turbines propeller pitch angle
When designing rated power, the rated speed for adjusting current Wind turbines is design rated speed；Second power conditioning module, with institute
The connection of the first rotational speed regulation module is stated, it is current for when current Wind turbines rotating speed reaches the design rated speed, adjusting
The rated power of Wind turbines is the design rated power.
The Wind turbines power control system, including：Wind turbines revolution detector and any of the above-described Wind turbines power
Control device, the rotating speed acquisition module of the Wind turbines power control device are connect with the Wind turbines revolution detector.
Wind turbines Poewr control method provided by the invention, apparatus and system, pass through the rotating speed and work(in Wind turbines
When rate is smaller, quickly adjusting rated power is maximum rated power to improve the generated energy of Wind turbines；And in Wind turbines
When output power meets maximum power output, then it is specified turn of design to adjust the rated speed of current Wind turbines and rated power
Speed and design rated power, had not only effectively increased the generated energy of Wind turbines, but also ensure that Wind turbines work as far as possible
Safety.
Description of the drawings
Fig. 1 is the flow chart of Wind turbines Poewr control method one embodiment provided by the invention；
Fig. 2 is the flow chart of another embodiment of Wind turbines Poewr control method provided by the invention；
Fig. 3 provides the control block diagram of Wind turbines rated speed regulative mode for the present invention；
Fig. 4 provides the control block diagram of Wind turbines rated power regulative mode for the present invention；
Fig. 5 for the present invention provide Wind turbines rated speed, rated power regulative mode control block diagram；
Fig. 6 is the device block diagram of Wind turbines power control device one embodiment provided by the invention；
Fig. 7 is the device block diagram of another embodiment of Wind turbines power control device provided by the invention.
Drawing reference numeral explanation
610- rotating speeds acquisition module, the first power conditioning modules of 620-, the first rotational speed regulations of 630- module, the second work(of 640-
Rate adjustment module, the second rotational speed regulations of 650- module, 660- propeller pitch angles/power acquisition module, 670- power/rotational speed regulation mould
Block, 680- trigger modules.
Specific implementation mode
Before the inventive concept for illustrating this programme, related description, design parameter are carried out to the parameter used in this programme
Including：
Design rated power pr：Corresponding standard output rated power after the completion of Wind turbines design.For example, the volume often said
Determine the Wind turbines that power is 1.5MW, 1.5MW is to correspond to pr。
Maximum rated power plr：The maximum value of corresponding standard output rated power after the completion of Wind turbines design, for example,
The rated power often said is the Wind turbines of 1.5MW, corresponding plrIt can be designed as 1.55MW.
Average output power paverage：The actual average power that Wind turbines are exported in fixed duration.
Grid-connected rotating speed wmin：Wind turbines required minimum speed reached when grid-connected.
Design rated speed wr：After the completion of Wind turbines design, it is operated in the rotating speed reached when design rated power.Example
Such as, the rated power often said is the Wind turbines of 1.5MW, corresponding wrAbout 17.3rpm.
Maximum rated rotating speed wlr：The maximum value of corresponding design rated speed after the completion of Wind turbines design, for example, often saying
Rated power be 1.5MW Wind turbines, corresponding wlrAbout 17.8rpm.
Predetermined threshold value θL：Wind turbines are to approach corresponding propeller pitch angle when maximum rated power exports.
Wherein, pr< plr、wmin< wr< wlr。
The inventive concept of the embodiment of the present invention is that be operated in output power in Wind turbines lower, by by wind
The rated power of motor group is adjusted to maximum rated power, to quickly improve the generated energy of Wind turbines；When Wind turbines
When generated energy basically reaches stable maximum rated power output, then it is design rated speed to adjust rated speed, and will be specified
Power regulation is design rated power, to make Wind turbines enter the normal working condition of safety.The embodiment of the present invention
Technical solution can be adapted for various Wind turbines.
Embodiment one
Fig. 1 is the method flow diagram of Wind turbines Poewr control method one embodiment provided by the invention, this method
Executive agent can be the unit master control system in Wind turbines, or integrated control device or module within the system.Such as
Shown in Fig. 1, which includes periodically executing Wind turbines power control procedures, the Wind turbines work(
Rate control flow includes：
S101 obtains Wind turbines rotating speed.
In general, Wind turbines convert wind energy into mechanical energy by wind wheel rotation, then mechanical energy is converted to electricity by generator
Can, the size of Wind turbines rotating speed is to weigh the major criterion of Wind turbines output power size.In the present embodiment, pass through acquisition
The rotating speed of Wind turbines wind wheel, to determine the size of generated output power, and under different operating statuses to Wind turbines into
The different power control of row, to guarantee safe operation of wind turbine in the case of improve the generated energy of Wind turbines.
S102, if Wind turbines rotating speed is not less than rated rotational frequency, the rated power for adjusting current Wind turbines is preset
Maximum rated power.
In the present embodiment, the rated rotational frequency of Wind turbines can be used as the standard value for weighing Wind turbines power output capacity,
When the rotating speed of Wind turbines is more than the rated rotational frequency, characterization present output power basically reaches rated output requirement；Work as wind-powered electricity generation
When the rotating speed of unit is less than the rated rotational frequency, characterization present output power is also not up to rated output requirement, needs further to carry
High rotating speed improves output power.It, can be further by current Wind turbines when Wind turbines rotating speed is not less than rated rotational frequency
Rated power be adjusted to maximum rated power, to make the output power of Wind turbines more quickly improve, to improve wind-powered electricity generation
The whole generated energy of unit.
S103, if current Wind turbines propeller pitch angle is more than predetermined threshold value or average output power not less than the specified work(of design
Rate, the rated speed for adjusting current Wind turbines are design rated speed.
As current nominal power has been arranged to maximum rated power, corresponding Wind turbines can execute corresponding variable pitch
Control and direct torque, to realize the output requirement of maximum rated power.Certainly, the actual speed of unit at this time can also surpass
Go out above-mentioned design rated speed.Therefore, can by identify Wind turbines as in propeller pitch angle size and fixed time period (such as：
From current time point forward in past 10min) the average output power p of Wind turbinesaverageTo judge Wind turbines
The raising situation of output power.Specifically, when Wind turbines, which are basically stable at, to be exported with maximum rated power, corresponding paddle
Elongation can reach a larger stabilization propeller pitch angle, corresponding average output power paverageAlso it can reach a stable value.
In the present embodiment, the two stationary values are determined as predetermined threshold value and design rated power respectively.
If current Wind turbines propeller pitch angle is more than predetermined threshold value or the average output power p of a period of timeaverageIt is not less than
Rated power is designed, then can determine that the output power of Wind turbines reaches maximum rated output power, and stable output power,
The rated speed of current Wind turbines is adjusted to design rated speed at this time, makes the rotating speed of Wind turbines by maximum rated power
Corresponding high rotating speed is reduced to design rated speed, to avoid Wind turbines because working long hours in maximum rated power shape
State, caused by Wind turbines be chronically at the work ability to bear beyond rated speed, and then ensure the safety fortune of Wind turbines
Row.
In the specific implementation procedure of the present embodiment, it is not limited to judge Wind turbines according to propeller pitch angle or average output power
Operating status can also use other modes, such as the operating status of Wind turbines is judged according to wind speed.
S104, if current Wind turbines rotating speed reaches design rated speed, the rated power for adjusting current Wind turbines is
Rated power is designed, and terminates this Wind turbines power control procedures (be transferred to triggering next time and execute S101).
During it is design rated speed to reduce the rated speed of Wind turbines, the rotating speed of Wind turbines can slowly drop
It is low.Wind turbines rotating speed be reduced to design rated speed after, can again regulating wind power unit rated power be design volume
Power is determined, to which the operating status of Wind turbines is integrally-regulated to design the work shape of rated power and design rated speed
State, to ensure the operational safety of unit.During by rated speed and rated power to design rating, adjust first
Secondly rated speed adjusts rated power, can be to avoid the risk of hypervelocity.The rated power of Wind turbines is being adjusted to design volume
After determining power, this Wind turbines power flow terminates, and Wind turbines can enter the Wind turbines power control in next period
Flow processed, and then periodic power control is carried out to Wind turbines.
Here illustrate, the pitch control that is carried out using each parameter in above-mentioned power control procedures about Wind turbines and
The operations such as direct torque are synchronous progress, and concrete operations content can refer to the control process of the prior art, not say herein
It is bright.The purpose of power regulation is mainly realized by the adjusting of the parameter to rated power, rated speed in the present embodiment, and
Wind turbines are carried out adaptability to carry out the controls such as variable pitch and torque to be the prior art according to rated power and rated speed, and
The control operation of Wind turbines inherently.
Wind turbines Poewr control method provided in an embodiment of the present invention, by periodically executing Wind turbines power control
Rated power is adjusted to maximum rated power by flow when the output power of Wind turbines is relatively low, quickly to improve wind turbine
The output power of group, and then improve the generated energy of Wind turbines；It is basically stable in the output power of Wind turbines maximum rated
When power, rated speed and rated power are adjusted to design rating from maximum rating, to ensure that aerogenerator unit safe is transported
Row.
Embodiment two
Fig. 2 is the flow chart of another embodiment of Wind turbines Poewr control method provided by the invention, and this method is visual
For a kind of specific implementation of embodiment of the method shown in Fig. 1.As shown in Fig. 2, the Wind turbines Poewr control method includes：
S201 is correspondingly arranged maximum rated rotating speed and maximum rated work(according to design rated speed and design rated power
Rate.
In the present embodiment, it is for the maximum (top) speed of clear generating set that maximum rated rotating speed and maximum rated power, which is arranged,
Ability to bear and maximum power output ability.Maximum rated rotating speed w is being setlrWith maximum rated power plrWhen, it can be according to control
Empirical value processed (including design rated speed wr, design rated power pr) w is directly setlrAnd plr；It can also be according to Wind turbines
Operating parameter (including pylon is lateral and fore-aft acceleration, transmission chain vibration, blade vibration, generator output voltage and electric current, change
Flow device pusher side and current on line side etc.) setting wlrAnd plr, specific set-up mode includes, but be not limited to for example, by Analysis on Mechanism,
The model that data statistical approach and intelligent algorithm are established is completed.
Power control procedures are periodically executed, which specifically includes：
S202 obtains Wind turbines rotating speed, and judges whether Wind turbines rotating speed is not less than rated rotational frequency.
Specifically, in the present embodiment, the general w of Wind turbines rotating speed is indicated.Rated rotational frequency can be with, but is not limited to 0.5
(wmin+wr).Correspondingly, in this step, judge whether Wind turbines rotating speed not less than rated rotational frequency translates into whether judge w
More than or equal to 0.5 (wmin+wr), if the determination result is YES, then execute S203；If judging result is no, S204 is executed.
S203, the rated power for adjusting current Wind turbines are maximum rated power plr.The content of S202~S203 is with before
It is similar to state S101~S102 steps.
S204, the rated speed for adjusting current Wind turbines are maximum rated rotating speed wlr, and terminate this Wind turbines
Power control procedures (are transferred to triggering next time and execute S202, is the same below).
If Wind turbines rotating speed is less than rated rotational frequency, the rated speed of current Wind turbines is adjusted to maximum rated turn
Speed, and terminate this Wind turbines power control procedures, into the power control procedures in next period.In Wind turbines rotating speed
Wind turbines rated speed when that is, rotating speed is smaller, is adjusted to w by small rated rotational frequencylr, rotating speed can be made quickly to increase, by a small margin
The rated speed of Wind turbines is promoted, and then improves the generated energy of Wind turbines.
After executing S203, the rated power of Wind turbines is arranged to maximum rated power, the output of Wind turbines
Power can be improved quickly, and when output power reaches maximum rated power, the rotating speed and output power of Wind turbines may be with
It the increase of wind speed and continues growing, be more than maximum rating, and then influence the safe operation of Wind turbines.Therefore, it is necessary to
When Wind turbines reach maximum rated power output, its rated speed and rated power are reduced, to ensure that Wind turbines are normal
Safe operation.
S205, obtains the propeller pitch angle and output power of Wind turbines, and judges whether current Wind turbines propeller pitch angle is more than
Whether predetermined threshold value or average output power are not less than design rated power.If the determination result is YES, then S206 is executed；If sentencing
Disconnected result is no, then terminates this Wind turbines power control procedures.
S206, the rated speed for adjusting current Wind turbines are design rated speed.The specific implementation procedures of S205~S206
It can be found in the corresponding contents of S103.
As shown in Fig. 2, in practical operation, current Wind turbines propeller pitch angle can be indicated with Pitch, average output power
paverageIt can indicate average output power of the Wind turbines in 10min.If Pitch>θLOr paverage≥pr, it is adjusted current
Rated speed is wr.Mode shown in Fig. 3 may be used in the specific regulative mode of rated speed, as shown in figure 3, with paddle is adjusted
Elongation is from θLIncrease to θR, rated speed is adjusted from maximum rated rotating speed wlrIt is smooth to be decreased to design rated speed wr；Then, lead to
Crossing the low-pass filter of a time constant larger (being more than the delay time needed for the smooth adjustment) makes rotational speed governor obtain
One smooth rotating speed wref, to the rotating speed w of Indirect method Wind turbinesref, 1/ (τ s+1) shown in Fig. 3 is the low pass filtered
The circuit transfer function of wave device.
S207, judges whether the rotating speed of current Wind turbines reaches design rated speed.If the determination result is YES, then it executes
S208；If judging result is no, terminate this Wind turbines power control procedures.
S208, the rated power for adjusting current Wind turbines are design rated power.The specific implementation procedures of S207~S208
It can be found in the corresponding contents of S104.
In practical operation, rated speed is adjusted to after design rated speed, when Wind turbines rotating speed needs one section
Between could be reduced to design rated speed from maximum rated rotating speed.If as shown in Fig. 2, rotating speed wrefReach wr, then can further again
It is design rated power p to adjust rated powerrTo ensure the safety of unit operation.Fig. 4 institutes can be used in its specific regulative mode
The mode shown, as shown in figure 4, being reduced to from maximum rated power according to the rated power of fixed slope smooth adjustment Wind turbines
Rated power is designed, the low-pass filtering of a time constant larger (being more than the delay time needed for the smooth adjustment) is then passed through
Device makes rotational speed governor obtain a smooth power rotating speed pref, p is given to the power of Indirect method Wind turbinesref.Its
In, wref、Pitch、paverageRotating speed, propeller pitch angle and the average output power for indicating Wind turbines respectively, pass through parameter selection
The rated power of Wind turbines is adjusted to design rated power by port SEL triggerings；1/ (τ s+1) is the electricity of the low-pass filter
Road transmission function.
After executing S208, Wind turbines are substantially to design rated speed stable operation, to design rated power stabilization
Output.But when wind speed reduces suddenly (wind speed as caused by fitful wind is die-offed), rotating speed, propeller pitch angle, the output power of Wind turbines
Deng by the respective change with the reduction of wind speed, cause the loss of generated energy, and amplitude of variation crosses conference influences Wind turbines
Safety.So the Wind turbines power flow of the present embodiment further includes, rotating speed, power control when wind speed reduces suddenly
Step processed, correspondence include：S209~S210.
S209, obtains the propeller pitch angle and output power of Wind turbines, and judges whether current Wind turbines propeller pitch angle is less than
Whether predetermined threshold value or average output power, which are not more than design rated power, if the determination result is YES then executes S210；If sentencing
Disconnected result is no, then terminates this Wind turbines power control procedures.
S210, the rated speed for adjusting current Wind turbines is maximum rated rotating speed, adjusts the specified of current Wind turbines
Power is maximum rated power, and terminates this Wind turbines power control procedures.
Specifically, if Pitch < θLOr paverage≤pr, then by Wind turbines rated speed from design rated speed wrIt adjusts
Section is maximum rated rotating speed wlr, by rated power from design rated power prIt is adjusted to maximum rated power plr, can be in wind speed
When reducing suddenly, generated energy caused by reducing larger pitch control later loses, and improves the generated energy and safety of Wind turbines
Property.
In practical operation, the rated speed for adjusting current Wind turbines is maximum rated rotating speed, adjusts current wind turbine
Mode as shown in Figure 5 can be used for the specific regulative mode of maximum rated power in the rated power of group, as shown in figure 5, with
Propeller pitch angle is adjusted from θLIt is decreased to θmin, rated speed (rated power) is adjusted from design rated speed wr(design rated power pr)
Smoothly increase to maximum rated rotating speed wlr(maximum rated power plr)；Then, larger (flat more than this by a time constant
It is sliding adjust needed for delay time) low-pass filter so that rotational speed governor (power control device) is obtained a smooth rotating speed
wref(pref), to the rotating speed w of Indirect method Wind turbinesref(pref), 1/ (τ s+1) shown in Fig. 5 is the low-pass filter
Circuit transfer function.
The Wind turbines Poewr control method of the present embodiment on the basis of embodiment shown in Fig. 1, gives Wind turbines
The specific regulative mode of Wind turbines rated speed in power control procedures, rated power, and when providing wind speed and reducing, to wind
The regulative mode of motor group rated speed, rated power, this method periodically carries out Wind turbines power control procedures, in nothing
In the case of hardware cost need to being increased, generated energy and the safety of Wind turbines entirety are effectively increased.
Embodiment three
Fig. 6 is the device block diagram of Wind turbines power control device one embodiment provided by the invention, can be used for holding
The method and step of row embodiment illustrated in fig. 1, as shown in fig. 6, the Wind turbines power control device includes：Rotating speed acquisition module
610, the first power conditioning module 620, the first rotational speed regulation module 630, the second power conditioning module 640；Wherein：
Rotating speed acquisition module 610, for obtaining Wind turbines rotating speed；First power conditioning module 620 obtains mould with rotating speed
Block 610 connects, for when Wind turbines rotating speed is not less than rated rotational frequency, the rated power for adjusting current Wind turbines to be default
Maximum rated power；First rotational speed regulation module 630 is connect with the first power conditioning module 620, in current wind turbine
When group propeller pitch angle is more than predetermined threshold value or average output power not less than design rated power, the volume of current Wind turbines is adjusted
It is design rated speed to determine rotating speed；Second power conditioning module 640 is connect with the first rotational speed regulation module 630, for current
When Wind turbines rotating speed reaches design rated speed, the rated power for adjusting current Wind turbines is design rated power.
Further, as shown in fig. 7, on the basis of embodiment shown in Fig. 6, above-mentioned Wind turbines power control device is also
It may include the second rotational speed regulation module 650, which connect with rotating speed acquisition module 610, for working as
When preceding Wind turbines rotating speed is less than rated rotational frequency, the rated speed for adjusting current Wind turbines is maximum rated rotating speed.
Further, above-mentioned Wind turbines power control device may also include propeller pitch angle/power acquisition module 660, power/
Rotational speed regulation module 670.Wherein, propeller pitch angle/power acquisition module 660 is connect with the first rotational speed regulation module 630, for obtaining
Current Wind turbines propeller pitch angle and/or average output power；Power/rotational speed regulation module 670 and propeller pitch angle/power acquisition module
660 connections, for being less than predetermined threshold value or average output power no more than design rated power in current Wind turbines propeller pitch angle
When, the rated speed for adjusting current Wind turbines is maximum rated rotating speed, and rated power is maximum rated power.
Further, above-mentioned Wind turbines power control device may also include trigger module 680, with rotating speed acquisition module
610 connections are acted for periodically starting rotating speed acquisition module 610.
The method and step of above-mentioned embodiment illustrated in fig. 2 can pass through the Wind turbines power control device of embodiment illustrated in fig. 7
Completion is executed, its Method And Principle is not repeated at this.
Wind turbines power control device provided in an embodiment of the present invention, by periodically executing Wind turbines power control
Flow, in Wind turbines rotating speed and smaller output power, it is maximum rating to adjust rated speed and rated power；In wind-powered electricity generation
When unit is run with higher rotating speed and stable output power, rated speed and rated power are adjusted from maximum rating to setting
Count rated value；And provide when wind speed reduces, rated speed, rated power are adjusted to maximum rating, effectively improve wind
The generated energy of motor group and safety.In addition, when wind speed reduces, power/rotational speed regulation module can effective regulating wind power unit volume
Determine rotating speed, rated power, which can periodically carry out Wind turbines power control procedures, in nothing
In the case of hardware cost need to being increased, achieve the purpose that improve generated energy and safety.
The present invention also provides a kind of Wind turbines power control systems comprising：Wind turbines revolution detector and on
Wind turbines power control device is stated, the rotating speed acquisition module of the Wind turbines power control device and the Wind turbines rotating speed
Detector connects.The Wind turbines power control system has the above-mentioned corresponding technique effect of Wind turbines power control device,
Details are not described herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；
Although present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：Its
It still can be with technical scheme described in the above embodiments is modified, either to which part or all technical features
Carry out equivalent replacement；And these modifications or replacements, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (10)
1. a kind of Wind turbines Poewr control method, which is characterized in that including periodically executing Wind turbines power control procedures,
The Wind turbines power control procedures include：
Obtain Wind turbines rotating speed；
If the Wind turbines rotating speed is not less than rated rotational frequency, the rated power for adjusting current Wind turbines is preset maximum
Determine power；
If current Wind turbines propeller pitch angle is more than predetermined threshold value or average output power not less than design rated power, adjusting is worked as
The rated speed of preceding Wind turbines is design rated speed；
If current Wind turbines rotating speed reaches the design rated speed, the rated power for adjusting current Wind turbines is described set
Rated power is counted, and terminates this Wind turbines power control procedures；
Wherein, the rated rotational frequency is the standard value for weighing the Wind turbines power output capacity, and the predetermined threshold value is institute
State corresponding propeller pitch angle when Wind turbines are exported with maximum rated power.
2. according to the method described in claim 1, it is characterized in that, also being wrapped after the acquisition Wind turbines rotating speed the step of
It includes：If presently described Wind turbines rotating speed is less than the rated rotational frequency, the rated speed for adjusting current Wind turbines is maximum
Determine rotating speed, and terminates this Wind turbines power control procedures.
3. according to the method described in claim 1, it is characterized in that, being most in the rated power for adjusting current Wind turbines
Further include after the step of high nominal powers：
If the current Wind turbines propeller pitch angle is less than no more than predetermined threshold value or the average output power designs specified work(
Rate；Or the current Wind turbines rotating speed is not up to the design rated speed, then terminates this Wind turbines power
Control flow.
4. method according to any one of claim 1-3, which is characterized in that in the volume for adjusting current Wind turbines
It is that design rated power further includes later to determine power：
Obtain current Wind turbines propeller pitch angle and/or average output power；
If current Wind turbines propeller pitch angle is less than predetermined threshold value or the average output power no more than the specified work(of design
Rate, the rated speed for adjusting current Wind turbines are preset maximum rated rotating speed, and rated power is the maximum rated power,
And terminate this Wind turbines power control procedures.
5. according to the method described in claim 4, it is characterized in that, the method further includes：
If the current Wind turbines propeller pitch angle is more than the design not less than the predetermined threshold value or the average output power
Rated power then terminates this Wind turbines power control procedures.
6. a kind of Wind turbines power control device, which is characterized in that described device includes：
Rotating speed acquisition module, for obtaining Wind turbines rotating speed；
First power conditioning module is connect with the rotating speed acquisition module, for being not less than standard in the Wind turbines rotating speed
When rotating speed, the rated power for adjusting current Wind turbines is preset maximum rated power；
First rotational speed regulation module is connect with first power conditioning module, for being more than in current Wind turbines propeller pitch angle
When predetermined threshold value or average output power are not less than design rated power, the rated speed for adjusting current Wind turbines is design
Rated speed；
Second power conditioning module is connect with the first rotational speed regulation module, for reaching institute in current Wind turbines rotating speed
When stating design rated speed, the rated power for adjusting current Wind turbines is the design rated power；
Wherein, the rated rotational frequency is the standard value for weighing the Wind turbines power output capacity, and the predetermined threshold value is institute
State corresponding propeller pitch angle when Wind turbines are exported with maximum rated power.
7. device according to claim 6, which is characterized in that described device further includes：
Second rotational speed regulation module is connect with the rotating speed acquisition module, for small in the presently described Wind turbines rotating speed
When the rated rotational frequency, the rated speed for adjusting current Wind turbines is maximum rated rotating speed.
8. the device described according to claim 6 or 7, which is characterized in that described device further includes：
Propeller pitch angle/power, which obtains, surveys module, is connect with the first rotational speed regulation module, for obtaining current Wind turbines pitch
Angle and/or average output power；
Power/rotational speed regulation module obtains survey module with the propeller pitch angle/power and connect, in the current Wind turbines
When propeller pitch angle is less than predetermined threshold value or the average output power no more than the design rated power, current wind turbine is adjusted
The rated speed of group is preset maximum rated rotating speed, and rated power is the maximum rated power.
9. device according to claim 8, which is characterized in that described device further includes：Trigger module is obtained with the rotating speed
Modulus block connects, for periodically starting the rotating speed acquisition module action.
10. a kind of Wind turbines power control system, which is characterized in that the system comprises：Wind turbines revolution detector and
Wind turbines power control device as described in any one of the claims 6-9, the Wind turbines power control device
Rotating speed acquisition module connect with the Wind turbines revolution detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521196.3A CN105134486B (en) | 2015-08-21 | 2015-08-21 | Wind turbines Poewr control method, apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521196.3A CN105134486B (en) | 2015-08-21 | 2015-08-21 | Wind turbines Poewr control method, apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134486A CN105134486A (en) | 2015-12-09 |
| CN105134486B true CN105134486B (en) | 2018-11-13 |
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| CN105781876A (en) * | 2016-02-26 | 2016-07-20 | 内蒙古久和能源装备有限公司 | Control method for limited-power and limited-rotational-speed running of wind turbine generator system |
| CN112943530B (en) * | 2019-12-11 | 2022-11-08 | 新疆金风科技股份有限公司 | Control method and device of wind generating set |
| CN113270892A (en) * | 2021-06-08 | 2021-08-17 | 上海电气风电集团股份有限公司 | Wind turbine generator set, control method and device thereof, electronic equipment and storage medium |
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| JP4407887B2 (en) * | 2003-06-12 | 2010-02-03 | 東洋電機製造株式会社 | Overload prevention torque command circuit by PWM converter |
| CN102518555A (en) * | 2012-01-12 | 2012-06-27 | 三一电气有限责任公司 | Megawatt wind driven generator set as well as control method and control system thereof |
| CN104074679A (en) * | 2014-07-02 | 2014-10-01 | 国电联合动力技术有限公司 | All-wind-speed limited-power optimal control method for variable-speed and variable-pitch wind generation set |
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| US7015595B2 (en) * | 2002-02-11 | 2006-03-21 | Vestas Wind Systems A/S | Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4407887B2 (en) * | 2003-06-12 | 2010-02-03 | 東洋電機製造株式会社 | Overload prevention torque command circuit by PWM converter |
| CN102518555A (en) * | 2012-01-12 | 2012-06-27 | 三一电气有限责任公司 | Megawatt wind driven generator set as well as control method and control system thereof |
| CN104074679A (en) * | 2014-07-02 | 2014-10-01 | 国电联合动力技术有限公司 | All-wind-speed limited-power optimal control method for variable-speed and variable-pitch wind generation set |
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