CN209523844U - Variable blade control system and wind power generating set - Google Patents
Variable blade control system and wind power generating set Download PDFInfo
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- CN209523844U CN209523844U CN201822208592.2U CN201822208592U CN209523844U CN 209523844 U CN209523844 U CN 209523844U CN 201822208592 U CN201822208592 U CN 201822208592U CN 209523844 U CN209523844 U CN 209523844U
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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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Abstract
The utility model discloses a kind of variable blade control system and wind power generating set, variable blade control system includes: master controller；Redundant manipulator is connect by communication bus and signal wire with master controller, and redundant manipulator judges the on-off of communication bus by the electric signal in signal wire；Variable pitch subsystem, connect with redundant manipulator；And speed detector, it is connect with redundant manipulator, speed detector can obtain the rotary speed information of wind-driven generator, wherein, redundant manipulator judges that the first variable pitch information of master controller is then sent to variable pitch subsystem by communication bus conducting, and redundant manipulator judges that communication bus interruption then obtains the second variable pitch information according to rotary speed information and is sent to variable pitch subsystem.According to variable blade control system provided by the embodiment of the utility model and wind power generating set, the variable pitch Communication being able to solve in wind power generating set promotes the operation stability of wind power generating set.
Description
Technical field
The utility model relates to wind generating set pitch control fields, and in particular to a kind of variable blade control system and wind-power electricity generation
Unit.
Background technique
The master controller of wind power generating set is generally arranged at tower bottom, is equivalent to the brain of wind power generating set,
The more of wind power generating set are arranged in the subsystems such as the variable pitch subsystem of wind power generating set, unsteady flow subsystem, yaw subsystem
A different location, and connect with master controller, the information of the comprehensive subsystems of master controller is intelligent in conjunction with wind field information
Maintain the stable operation of wind power generating set.
Variable pitch subsystem is connect by communication bus with master controller, and the instruction of master controller is executed.However, due to wind-force
The electromagnetic environment of generating set itself is more complicated, communicates, furthermore variable pitch subsystem and master control inevitable by electromagnetic interference
Communication between device processed generally goes through slip ring, and the Joining Technology of slip ring easily the case where communicating interrupt occurs by electromagnetic interference.
When communicating interrupt, master controller can not receive the status information of variable pitch subsystem, cannot be according to the actual conditions of variable pitch subsystem
Under send instructions；Variable pitch subsystem can not receive the instruction of master controller, can only feathering shutdown.
Utility model content
The utility model provides a kind of variable blade control system and wind power generating set, can be in master controller and variable pitch
Communication bus between system continues to the normal operation of variable pitch subsystem when interrupting, improve the Communication fault-tolerant rate of system.
On the one hand, the utility model provides a kind of variable blade control system comprising: master controller；Redundant manipulator leads to
It crosses communication bus and signal wire is connect with master controller, redundant manipulator judges communication bus by the electric signal in signal wire
On-off；Variable pitch subsystem, connect with redundant manipulator；And speed detector, it is connect with redundant manipulator, Rotating speed measring
Device can obtain the rotary speed information of wind-driven generator, wherein redundant manipulator judges communication bus conducting then by main control
First variable pitch information of device is sent to variable pitch subsystem, and redundant manipulator judges that communication bus interruption is then obtained according to rotary speed information
Variable pitch subsystem is sent to the second variable pitch information.
According to the one aspect of the utility model embodiment, redundant manipulator includes: judgment module, is connect with signal wire,
Judgment module receives the first signal and then confirms that communication bus is connected, and judgment module receives second signal and then confirms communication bus
It interrupts.
According to the one aspect of the utility model embodiment, signal wire is level signal line, in the first signal, second signal
It is any be high level signal, it is another be low level signal.
According to the one aspect of the utility model embodiment, redundant manipulator includes: rotational speed governor, is filled with Rotating speed measring
Set connection；And blade position controller, it is connect with rotational speed governor and variable pitch subsystem, rotational speed governor is believed according to revolving speed
Breath compares to obtain speed change information with revolving speed preset value is sent to blade position controller, and blade position controller is according to speed change information
Obtained varied angle information is sent to variable pitch subsystem.
According to the one aspect of the utility model embodiment, variable blade control system further include: angle measurement unit, with redundancy
The blade position controller of controller connects, and angle measurement unit can obtain the pitch angle information of blade, blade position control
Device obtains varied angle information according to speed change information and pitch angle information.
According to the one aspect of the utility model embodiment, communication bus transmission has heartbeat signal, and redundant manipulator is also logical
Cross the on-off that heartbeat signal judges communication bus.
According to the one aspect of the utility model embodiment, communication bus is PROFIBUS-DP bus, wireless telecommunications bus
In any；Signal wire is 24V signal wire.
According to the one aspect of the utility model embodiment, speed detector is rotary encoder or close switch.
According to the one aspect of the utility model embodiment, redundant manipulator includes: over-speed protection module, with Rotating speed measring
Device and the connection of variable pitch subsystem, over-speed protection module compare rotary speed information and threshold rotation rate, to be more than threshold in rotary speed information
Emergency propeller retraction information is sent to variable pitch subsystem when being worth revolving speed.
On the other hand, the utility model embodiment also provides a kind of wind power generating set comprising any one of aforementioned change
Blade control system.
According to variable blade control system provided by the embodiment of the utility model and wind power generating set, increase redundant manipulator,
Redundant manipulator can be taken over to variable pitch subsystem in the case where master controller and variable pitch subsystem communicating interrupt and send control
The task of instruction maintains wind power generating set to continue to run, and realizes the long-term fault-tolerant operation under master controller communicating interrupt operating condition,
To solve the variable pitch Communication in wind power generating set, the average time between failures (Mean of wind power generating set is promoted
Time Between Failure, MTBF), that is, promote the operation stability of wind power generating set.
Since redundant manipulator can still maintain wind-force in the case where master controller and variable pitch subsystem communicating interrupt
It is total to weaken communication so as to reduce the communication quality requirement of variable pitch subsystem and master controller for the normal operation of generating set
Slip ring communication problem bring influences in line, and can be using more convenient and fast wireless communication mode as the logical of communication bus
News mode.
In some alternative embodiments, redundant manipulator includes the over-speed protection module connecting with speed detector,
Can when there is overrunning operating condition in wind power generating set emergency propeller retraction, can effectively solve wind power generating set and occur overrunning, fly
The problems such as vehicle hidden danger.
Detailed description of the invention
By reading detailed description of non-limiting embodiments referring to the drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon, wherein the same or similar appended drawing reference indicates the same or similar feature, attached
Figure is not drawn to scale.
Fig. 1 shows the structural schematic diagram of the variable blade control system according to the utility model embodiment；
Fig. 2 shows the structural block diagrams according to the variable blade control system of the utility model embodiment；
Fig. 3 is shown to be shown according to information transmitting of the variable blade control system of the utility model embodiment in communication bus conducting
It is intended to；
The information transmitting that Fig. 4 shows according to the variable blade control system of the utility model embodiment when communication bus interrupts is shown
It is intended to.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below, in order to keep this practical new
The objects, technical solutions and advantages of type are more clearly understood, and below in conjunction with drawings and the specific embodiments, carry out to the utility model
It is described in further detail.It should be understood that specific embodiment described herein is only configured to explain the utility model, do not matched
It is set to restriction the utility model.To those skilled in the art, the utility model can not need these details
In some details in the case where implement.Below the description of embodiment is used for the purpose of passing through the example for showing the utility model
The utility model is better understood to provide.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that including
There is also other identical elements in the process, method, article or equipment of the element.
The utility model provides a kind of variable blade control system, and the variable blade control system is for generating change in wind power generating set
The relevant signal of paddle is sent to variable pitch subsystem, and variable pitch subsystem controls pitch drive according to relevant signal and drives blade phase
Wheel hub is moved, to adjust blade pitch angle angularly, realizes variable pitch operation.
Fig. 1 shows the structural schematic diagram of the variable blade control system according to the utility model embodiment.The variable pitch of the present embodiment
Control system includes master controller 110, redundant manipulator 120, variable pitch subsystem 130 and speed detector 140, is furthermore existed
It can also include angle measurement unit 150 in some embodiments.
Wind power generating set may include that pylon 200, the cabin being rotatably dispose on pylon 200 300 and cabin 300 connect
The wheel hub 400 connect and the multiple blades 500 being connect with wheel hub 400.
Master controller 110 can be set in the bottom of pylon 200, and the setting of variable pitch subsystem 130 of wind power generating set exists
At wheel hub 400 and blade 500, variable pitch subsystem 130 and 110 communication connection of master controller.Wind power generating set can also wrap
Other subsystem settings such as unsteady flow subsystem, yaw subsystem are included, multiple and different positions of wind power generating set are set, and
With 110 communication connection of master controller.
The variable blade control system of the present embodiment is equipped with redundant manipulator 120, and redundant manipulator 120 can be set in wheel hub
In 400.Redundant manipulator 120 is connect by communication bus 160 and signal wire 170 with master controller 110, redundant manipulator
120 can judge the on-off of communication bus 160 by the electric signal in signal wire 170.
In the present embodiment, variable pitch subsystem 130 is connect with redundant manipulator 120, can pass through redundant manipulator 120 and master
110 communication connection of controller.
Speed detector 140 is connect with redundant manipulator 120, and speed detector 140 can be set in wheel hub 400
It is interior, the revolving speed of generator is acquired, so as to obtain the rotary speed information of wind-driven generator.In some embodiments, revolving speed is examined
Surveying device 140 is rotary encoder or close switch, wherein it is preferred that using rotary encoder.When speed detector 140 is to connect
When nearly switch, the revolving speed of generator can be judged by the triggering frequency of close switch.
As previously mentioned, redundant manipulator 120 can judge the logical of communication bus 160 by the electric signal in signal wire 170
It is disconnected.Wherein, in normal conditions, the judgement of redundant manipulator 120 obtains the conducting of communication bus 160, redundant manipulator under this operating condition
First variable pitch information of master controller 110 is sent to variable pitch subsystem 130 by 120, that is, plays the role of information transmitting.In variable pitch
Under the operating condition of communicating interrupt, the judgement of redundant manipulator 120 obtains communication bus 160 and interrupts, redundant manipulator 120 under this operating condition
The second variable pitch information is obtained according to the rotary speed information of speed detector 140, and is sent to variable pitch subsystem 130, continues to become
Paddle operation and the operation of wind power generating set.
According to variable blade control system provided by the embodiment of the utility model, redundant manipulator 120 is increased, it can be in master
In the case where controller 110 and 130 communicating interrupt of variable pitch subsystem, takes over to variable pitch subsystem 130 and send appointing for control instruction
Business maintains wind power generating set to continue to run, and realizes that the long-term fault-tolerant operation under operating condition is interrupted in master controller communication 110, thus
The variable pitch Communication in wind power generating set is solved, the average time between failures of wind power generating set is promoted, is i.e. promotion wind
The operation stability of power generator group.
In some embodiments, the communication connection mode of main communication 160 can be conductor cable, and main communication 160
PROFIBUS-DP bus in this way.Conducting slip ring can be set in the rotatable connecting portion of pylon 200 and cabin 300 in conductor cable
Realize electrical connection or communication connection.In some other embodiment, main communication 160 is also possible to other communication connection modes,
Such as main communication 160 is wireless telecommunications bus.
Since redundant manipulator 120 can be in the case where master controller 110 and 130 communicating interrupt of variable pitch subsystem still
The normal operation for maintaining wind power generating set, is wanted so as to reduce variable pitch subsystem 130 and the communication quality of master controller 110
It asks, weakening slip ring communication problem bring in communication bus 160 influences, and can use more convenient and fast wireless communication mode
Communication modes as communication bus 160.
Fig. 2 shows the structural block diagram according to the variable blade control system of the utility model embodiment, Fig. 3 shows the pitch control
System communication bus be connected when information transmit schematic diagram, Fig. 4 show the variable blade control system communication bus interrupt when
Information transmits schematic diagram.In the present embodiment, redundant manipulator 120 includes judgment module 121, judgment module 121 and signal wire
170 connections, the judgement for 160 on-off of communication bus.Wherein, such as Fig. 3, it is then true that judgment module 121 receives the first signal C1
Recognize the conducting of communication bus 160, such as Fig. 4, judgment module 121 receives second signal C2 and then confirms that communication bus 160 interrupts.
Such as Fig. 3, when judgment module 121 judges that communication bus 160 is connected, judgment module 121 is by master controller 110 by logical
The first variable pitch information T1 that news bus 160 is transmitted is transferred to variable pitch subsystem 130.Such as Fig. 4, the judgement of judgment module 121 communication is always
When line 160 interrupts, redundant manipulator 120 takes over task of control instruction is sent to variable pitch subsystem 130, to variable pitch subsystem
130 send the second variable pitch information.In some embodiments, the second variable pitch information includes varied angle information AT, in other reality
It applies in example, the second variable pitch information can also include emergency propeller retraction information EM, will hereinafter be discussed in greater detail.
Signal wire 170 can be level signal line, and judgment module 121 can judge communication bus 160 by low and high level
On-off, any in above-mentioned the first signal C1, second signal C2 is high level signal, and another is low level signal.One
In a little embodiments, signal wire 170 is 24V signal wire.
Being electrically connected between master controller 110 and redundant manipulator 120 and communication connection are by there is the implementation of slip ring
In example, when interrupting communication bus 160, signal wire 170 still can keep signal
Normal transmission.
In some embodiments, the transmission of communication bus 160 has heartbeat signal, i.e., at regular intervals by master controller 110
The data packet of a very little is sent to redundant manipulator 120, redundant manipulator 120 also judges communication bus by heartbeat signal
160 on-off.
Redundant manipulator 120 and master controller 110 can have three kinds of operational modes, i.e. normal mode, fault-tolerant mould
Formula and fault mode, wherein the mode switching manner of redundant manipulator 120 is as described below.
In the normal mode, if a failure occurs, then enter fault mode；Failure elimination and reset or Failure elimination
Afterwards, restored by fault mode to normal mode.If passing through the electric signal of signal wire 170 and/or the heartbeat letter of communication bus 160
Number judgement obtain communication bus 160 interruption, and master controller 110 enter fault-tolerant mode, then enter fault-tolerant mode.If passing through letter
Number electric signal of line 170 and/or the heartbeat signal of communication bus 160, which judge to obtain communication bus 160, restores conducting, and main control
Device 110 enters normal mode, then enters normal mode.Under fault-tolerant mode, if a failure occurs or master controller 110 enters
The time of fault mode or fault-tolerant mode operation is more than threshold value (e.g. 10 seconds), then enters fault mode.
Such as Fig. 2, the redundant manipulator 120 of the present embodiment further includes rotational speed governor 122 and blade position controller
123.Wherein rotational speed governor 122 is connect with speed detector 140.Blade position controller 123 and rotational speed governor 122 with
And variable pitch subsystem 130 connects.
Such as Fig. 4, speed detector 140 is able to detect the revolving speed of generator M, obtains rotary speed information S1 and is sent to revolving speed control
Device 122 processed.Rotational speed governor 122 compares to obtain speed change information ST according to rotary speed information S1 and revolving speed preset value S0 is sent to blade
Positioner 123, the varied angle information AT that blade position controller 123 is obtained according to speed change information ST are sent to variable pitch subsystem
System 130.
The variable blade control system of the present embodiment further includes angle measurement unit 150, angle measurement unit 150 and Redundant Control
The blade position controller 123 of device 120 connects, and angle measurement unit 150 can obtain the pitch angle information A1 of blade.This implementation
The blade position controller 123 of example obtains above-mentioned varied angle information AT according to speed change information ST and pitch angle information A1.
Variable pitch subsystem 130 is connect by pitch drive with blade 500, and variable pitch subsystem 130 receives the first variable pitch
After the varied angle information AT that information T1 or blade position controller 123 issue, control pitch drive driving blade 500 is opposite
Wheel hub movement realizes variable pitch operation to adjust the actual blade pitch angle of blade 500.After the actual blade pitch angular transformation of blade 500,
The actual speed of engine M is driven also accordingly to change.
In some embodiments, rotational speed governor 122 compares rotary speed information S1 and revolving speed preset value S0, if S1 < S0,
I.e. generator actual speed is lower than revolving speed preset value at this time, and the speed change information ST that rotational speed governor 122 issues is to promote revolving speed to refer to
It enables, then blade position controller 123 issues the angle for opening paddle according to pitch angle information A1 (i.e. current blade actual position information)
Information AT is spent, variable pitch subsystem 130 controls pitch drive driving blade 500 and opens paddle, increases what wind power generating set obtained
Wind energy.
In some embodiments, rotational speed governor 122 compares rotary speed information S1 and revolving speed preset value S0, if S1 > S0,
I.e. generator actual speed is higher than revolving speed preset value at this time, and the speed change information ST that rotational speed governor 122 issues is to reduce revolving speed to refer to
It enables, then blade position controller 123 issues the angle of feathering according to pitch angle information A1 (i.e. current blade actual position information)
Information AT is spent, variable pitch subsystem 130 controls pitch drive and drives 500 feathering of blade, reduces what wind power generating set obtained
Wind energy.
In some embodiments, redundant manipulator 120 can also include over-speed protection module 124, should fill with Rotating speed measring
140 and the connection of variable pitch subsystem 130 are set, over-speed protection module 124 compares rotary speed information S1 and threshold rotation rate SM, in revolving speed
Emergency propeller retraction information EM is sent to variable pitch subsystem 130 when information S1 is more than threshold rotation rate SM.
After variable pitch subsystem 130 receives emergency propeller retraction information EM, control pitch drive drives 500 relativeatoeterahub of blade
Movement effectively solves 500 emergency propeller retraction of blade so as to the emergency propeller retraction when operating condition occurs overrunning in wind power generating set
There is the problems such as overrunning, driving hidden danger in wind power generating set.
The utility model embodiment also provides a kind of wind power generating set comprising the pitch control of any of the above-described embodiment
System.The variable blade control system of the wind power generating set of the utility model embodiment increases redundant manipulator, the Redundant Control
Device can be taken over to variable pitch subsystem in the case where master controller and variable pitch subsystem communicating interrupt and send appointing for control instruction
Business maintains wind power generating set to continue to run.
Wind power generating set can continue fault-tolerant operation in the variable pitch communicating interrupt of master controller, to solve wind-force hair
Variable pitch Communication in motor group, promotes the average time between failures of wind power generating set, i.e. promotion wind power generating set
Operation stability.
Since redundant manipulator can still maintain wind-force in the case where master controller and variable pitch subsystem communicating interrupt
It is total to weaken communication so as to reduce the communication quality requirement of variable pitch subsystem and master controller for the normal operation of generating set
Slip ring communication problem bring influences in line, and can be using more convenient and fast wireless communication mode as the logical of communication bus
News mode.
Furthermore in some embodiments, the redundant manipulator of wind power generating set includes the mistake connecting with speed detector
Fast protective module, can when there is overrunning operating condition in wind power generating set emergency propeller retraction, can effectively solve wind power generating set
There is the problems such as overrunning, driving hidden danger.
According to the utility model embodiment as described above, these embodiments details all there is no detailed descriptionthe,
Also not limiting the utility model is only the specific embodiment.Obviously, as described above, many modification and change can be made
Change.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the principles of the present invention and actually to answer
With so that skilled artisan be enable to utilize the utility model and repairing on the basis of the utility model well
Change use.The utility model is limited only by the claims and their full scope and equivalents.
Claims (10)
1. a kind of variable blade control system characterized by comprising
Master controller (110)；
Redundant manipulator (120) is connect by communication bus (160) and signal wire (170) with the master controller (110),
The redundant manipulator (120) judges the on-off of the communication bus (160) by the electric signal in the signal wire (170)；
Variable pitch subsystem (130) is connect with the redundant manipulator (120)；And
Speed detector (140) is connect with the redundant manipulator (120), and the speed detector (140) can obtain
The rotary speed information of wind-driven generator,
Wherein, the redundant manipulator (120) judges the communication bus (160) conducting then by the master controller (110)
The first variable pitch information be sent to the variable pitch subsystem (130), the redundant manipulator (120) judges the communication bus
(160) interruption then obtains the second variable pitch information according to the rotary speed information and is sent to the variable pitch subsystem (130).
2. variable blade control system according to claim 1, which is characterized in that the redundant manipulator (120) includes:
Judgment module (121) is connect with the signal wire (170), and the judgment module (121) receives the first signal and then confirms
Communication bus (160) conducting, the judgment module (121) receive second signal and then confirm the communication bus (160)
It interrupts.
3. variable blade control system according to claim 2, which is characterized in that the signal wire (170) is level signal line,
In first signal, the second signal it is any be high level signal, it is another be low level signal.
4. variable blade control system according to claim 1, which is characterized in that the redundant manipulator (120) includes:
Rotational speed governor (122) is connect with the speed detector (140)；And
Blade position controller (123) is connect with the rotational speed governor (122) and the variable pitch subsystem (130),
The rotational speed governor (122) is sent to institute according to the speed change information that the rotary speed information and revolving speed preset value compare
It states blade position controller (123), the varied angle information that the blade position controller (123) obtains according to the speed change information
It is sent to the variable pitch subsystem (130).
5. variable blade control system according to claim 4, which is characterized in that further include:
Angle measurement unit (150) is connect with the blade position controller (123) of the redundant manipulator (120), described
Angle measurement unit (150) can obtain the pitch angle information of blade, and the blade position controller (123) is according to the speed change
Information and the pitch angle information obtain the varied angle information.
6. variable blade control system according to claim 1, which is characterized in that communication bus (160) transmission has heartbeat
Signal, the redundant manipulator (120) also judge the on-off of the communication bus (160) by the heartbeat signal.
7. variable blade control system according to claim 1, which is characterized in that the communication bus (160) is PROFIBUS-
Any in DP bus, wireless telecommunications bus；
The signal wire (170) is 24V signal wire.
8. variable blade control system according to claim 1, which is characterized in that the speed detector (140) is rotation
Encoder or close switch.
9. variable blade control system according to claim 1, which is characterized in that the redundant manipulator (120) includes:
Over-speed protection module (124) is connect with the speed detector (140) and the variable pitch subsystem (130), described
Over-speed protection module (124) compares the rotary speed information and threshold rotation rate, to be more than the threshold rotation rate in the rotary speed information
When to the variable pitch subsystem (130) send emergency propeller retraction information.
10. a kind of wind power generating set, which is characterized in that including pitch control system according to any one of claims 1 to 9
System.
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| CN201822208592.2U CN209523844U (en) | 2018-12-26 | 2018-12-26 | Variable blade control system and wind power generating set |
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| CN201822208592.2U CN209523844U (en) | 2018-12-26 | 2018-12-26 | Variable blade control system and wind power generating set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112112757A (en) * | 2020-10-09 | 2020-12-22 | 上海电气风电集团股份有限公司 | Anti-flash-off control method, system, equipment and medium for variable pitch system |
| CN112160868A (en) * | 2020-10-09 | 2021-01-01 | 上海电气风电集团股份有限公司 | Monitoring method, system, equipment and medium of variable pitch system |
| CN113048009A (en) * | 2019-12-27 | 2021-06-29 | 新疆金风科技股份有限公司 | Variable pitch control method, device and system of wind generating set |
| CN113446154A (en) * | 2020-03-27 | 2021-09-28 | 北京金风科创风电设备有限公司 | Variable pitch control method and control system of wind generating set |
| CN113775473A (en) * | 2020-06-10 | 2021-12-10 | 北京金风科创风电设备有限公司 | Control method and control device for variable pitch system of wind generating set |
| CN114002622A (en) * | 2021-10-28 | 2022-02-01 | 上海电气风电集团股份有限公司 | Communication detection method, system and readable storage medium |
| CN116447077A (en) * | 2023-06-12 | 2023-07-18 | 深圳众城卓越科技有限公司 | Fan safety variable pitch control system and method |
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| CN113048009A (en) * | 2019-12-27 | 2021-06-29 | 新疆金风科技股份有限公司 | Variable pitch control method, device and system of wind generating set |
| CN113446154A (en) * | 2020-03-27 | 2021-09-28 | 北京金风科创风电设备有限公司 | Variable pitch control method and control system of wind generating set |
| CN113775473A (en) * | 2020-06-10 | 2021-12-10 | 北京金风科创风电设备有限公司 | Control method and control device for variable pitch system of wind generating set |
| CN113775473B (en) * | 2020-06-10 | 2023-03-14 | 北京金风科创风电设备有限公司 | Control method and control device for variable pitch system of wind generating set |
| CN112112757A (en) * | 2020-10-09 | 2020-12-22 | 上海电气风电集团股份有限公司 | Anti-flash-off control method, system, equipment and medium for variable pitch system |
| CN112160868A (en) * | 2020-10-09 | 2021-01-01 | 上海电气风电集团股份有限公司 | Monitoring method, system, equipment and medium of variable pitch system |
| CN112160868B (en) * | 2020-10-09 | 2022-04-12 | 上海电气风电集团股份有限公司 | Monitoring method, system, equipment and medium of variable pitch system |
| CN114002622A (en) * | 2021-10-28 | 2022-02-01 | 上海电气风电集团股份有限公司 | Communication detection method, system and readable storage medium |
| CN114002622B (en) * | 2021-10-28 | 2024-02-27 | 上海电气风电集团股份有限公司 | Communication detection method, device and readable storage medium |
| CN116447077A (en) * | 2023-06-12 | 2023-07-18 | 深圳众城卓越科技有限公司 | Fan safety variable pitch control system and method |
| CN116447077B (en) * | 2023-06-12 | 2023-08-22 | 深圳众城卓越科技有限公司 | Fan safety variable pitch control system and method |
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