CN207701300U - Blade of wind-driven generator icing on-Line Monitor Device - Google Patents
Blade of wind-driven generator icing on-Line Monitor Device Download PDFInfo
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- CN207701300U CN207701300U CN201721855236.9U CN201721855236U CN207701300U CN 207701300 U CN207701300 U CN 207701300U CN 201721855236 U CN201721855236 U CN 201721855236U CN 207701300 U CN207701300 U CN 207701300U
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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 provides a kind of blade of wind-driven generator icing on-Line Monitor Device, it is provided with data acquisition unit, the data acquisition unit includes suitable for acquiring the sensor and data collection station of blade loading signal and vibration signal, wherein the sensor is mounted on the inner surface of at least one blade；On-Line Monitor Device in the utility model is by installing sensor additional, it obtains the load on fan blade and vibrates live signal and work information, and the timing acquiring of load, vibration and coherent signal is carried out by data acquisition unit, thus to obtain the running state information of draught fan impeller equipment.It so as to automatic, acquisition in real time, storage, uploads, analysis data, can help to recognize whether to freeze, realize that icing monitors.
Description
Technical field
The utility model is related to wind power generating set fault diagnosis fields, and in particular to a kind of blade of wind-driven generator icing
On-Line Monitor Device.
Background technology
Blade is one of the position of Wind turbines most critical, and the quality of state directly affects the operational safety and hair of complete machine
Electrical efficiency, blade are made of expensive composite material, and processing cost accounts for about 20% or so of entire unit.
During running of wind generating set, low temperature environment can bring acid test to blade or even entire wind turbine, and list is just
For blade, what the problem of low temperature environment can cause blade that ice formation issues occur, material and structural behaviour change, load changed asks
Topic etc.；For the fan part of Wind turbines, when blade adheres to the ice sheet of larger quality, shaking for fan blade can be changed
It is dynamic, and then change its dynamic response behavior；It is uneven or asymmetric that icing can cause blade to be weighed, this can further result in wind turbine
Component is affected；The vibration of fan part is changed due to freezing, it is possible to cause the resonance between component, also will increase wind turbine
The fatigue load of component.Also, it freezes caused by low temperature and the rising of atmospheric density may will increase load and maximum power is defeated
Go out, if wind turbine could not react automatically, motor or transmission chain if may be burned, and gear-box may occur to overload or damage.
Meanwhile the control system of Wind turbines can also be affected, and the aerodynamic configuration of blade be changed due to freezing, so as to cause leaf
Piece stall in advance or may be delayed than expected design, then the corresponding configuration of electronic or hydraulic vane change control should also change correspondingly.
The detection signal system that blade icing also results in wind turbine breaks down to feedback error signal.
A series of problems that above-mentioned blade icing is brought directly affects the safety of running of wind generating set and is possible to lead
Unit outage is caused, and the reduction of hours of operation will have a direct impact on the economy of Wind Power Project.Also, in addition to wind turbine itself is run
Safety, the safety of ambient enviroment can also be influenced by low temperature or icing.The ice sheet fragment dished out when fan operation
Or the berg fallen may hurt people or object near wind turbine.
Due to blade freeze exist greatly harm, at present its be wind-powered electricity generation field a global range problem.
Hinterland especially mountain area, large scale wind turbine can all be frozen by blade in operation and shutdown and be influenced, and harm is especially tight
Weight.Therefore, a kind of device that can be monitored blade and whether freeze how is studied, unit is monitored at any time, in order to work
Personnel take timely measure, this has a very important significance for the operation of Wind turbines
Utility model content
What the utility model solved is that accuracy of detection existing for blade icing monitoring device in the prior art is low, reliability
It is low or the technical issues of involve great expense, and then provide that a kind of monitoring accuracy is high, low-cost blade icing on-Line Monitor Device.
The technical scheme in the invention for solving the above technical problem is：
A kind of blade of wind-driven generator icing on-Line Monitor Device, including：Data acquisition unit, the data acquisition unit
Include suitable for acquiring the sensor and data collection station of blade loading signal and vibration signal, wherein the sensor is mounted on extremely
On the inner surface of a few blade；The data collection station is connect with the sensor by signal cable, the data acquisition
Station is mounted in the wheel hub at three blade centers.
It is additionally provided with data exchange unit and monitoring server；The data exchange unit connects with the data collection station
It connects, receives the data that the data collection station transmits；The monitoring server is connect with the data exchange unit, described in reception
The data that data exchange unit transmits.
There are three the sensor settings, and three sensors are separately mounted on the inner surface of three blades.
Each the distance between the sensor and the wheel hub are less than or equal to the half of the length of blade.
The monitoring server is also connect with wind-driven power generation control system.
The monitoring server is provided with fault condition judgment module.
The sensor is the integration module of load transducer module, vibrating sensor module and temperature sensor module,
It is suitable for acquiring load signal, vibration signal and the temperature data of blade.
It is additionally provided with alarm module, the alarm module connect setting with the fault condition judgment module.
The advantages of blade of wind-driven generator icing on-Line Monitor Device described in the utility model, is：
Blade of wind-driven generator icing on-Line Monitor Device described in the utility model obtains wind by installing sensor additional
Load and vibration live signal on machine blade and work information, and load, vibration and correlation are carried out by data acquisition unit
The timing acquiring of signal, thus to obtain the running state information of draught fan impeller equipment.So as to acquire, deposit automatically, in real time
Storage uploads, analysis data, can help to recognize whether to freeze, realize the monitoring that freezes.
In order to keep the technical solution of blade of wind-driven generator icing on-Line Monitor Device described in the utility model more clear
Chu Mingbai is With reference to embodiment further described the technical solution in the utility model with attached drawing.
Description of the drawings
It is the installation signal of blade of wind-driven generator icing on-Line Monitor Device described in the utility model as shown in Figure 1
Figure；
1- blades；2- sensors；3- data collection stations；Wheel hub at tri- blade centers of 4-；5- data exchange units；6-
Monitoring server；7- Terminal Server Clients.
Specific implementation mode
Hereinafter, certain exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or scope of the present utility model, it can be changed by various different modes described real
Apply example.Therefore, attached drawing and description are considered essentially illustrative rather than restrictive.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing described as flow chart or method.Although operations are described as the processing of sequence by flow chart, therein to be permitted
Multioperation can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be rearranged.When it
The processing can be terminated when operation completion, it is also possible to the additional step being not included in attached drawing.The processing
It can correspond to method, function, regulation, subroutine, subprogram etc..
A kind of 1 icing on-Line Monitor Device of blade of wind-driven generator is present embodiments provided, including:Data acquisition unit,
The data acquisition device includes sensor 2 and data collection station 3, and in the present embodiment, the sensor 2 is vibrating sensor mould
The integration module of block and load transducer module is suitable for acquiring the vibration signal of the blade.The wherein described sensor installation
On the inner surface of at least one blade 1, as preferred embodiment, there are three the settings of sensor described in the present embodiment,
It is separately mounted on the inner surface of three blades 1；The distance between the sensor and the wheel hub account for the length of blade
No more than half.The data collection station 3 is connect with the sensor by signal cable, is suitable for acquiring the sensing
The monitoring signals of device, the data collection station are mounted in the wheel hub 4 at three 1 centers of blade.
The on-Line Monitor Device is additionally provided with data exchange unit 5 and monitoring server 6, the data exchange unit 5
It is connect with the data collection station 3, receive the monitoring signals of the transmission of the data collection station 3 and is transmitted to looped network.The present embodiment
Described in data exchange unit 5 be interchanger.
Monitoring server 6 is used to receive the data information that the data exchange unit transmits, while the monitoring server 6
It is also connect with wind power generator control system, the work information data for receiving wind turbine, and warning message is fed back into wind-powered electricity generation
Generator control system adjusts its control strategy；The monitoring server 6 handles the information received, periodically will be described
Load data and vibration data monitor value and with obtain monitor value when work information data the same terms under the corresponding load
Lotus and vibration data basic value are compared, and the basic value refers to the not load data and vibration data under icing condition
Value calculates the inclined absolute value of the difference of the two；When the load data monitor value and vibration data monitor value that have at least one blade with
The statistical value of the absolute value of the bias of its load data basic value and vibration data basic value judges that blade knot occurs when being more than threshold value
Ice, threshold value described in the present embodiment are 9%.
As preferred embodiment, the monitoring server further comprises fault condition judgment module, the failure
Situation judgment module is stored with the threshold value, the load data monitor value for calculating the blade 1 and vibration data monitor value
With the statistical value of the absolute value of the bias of its load data basic value and vibration data basic value, and by the statistical value and the threshold
Value is compared, and judges whether blade 1 freezes.Equally it is used as preferred embodiment, the monitoring server to be additionally provided with knot
Ice amount estimation block, the icing amount estimation block estimate the icing amount on the blade according to the statistical value.
The monitoring device is additionally provided with Terminal Server Client 7, and the Terminal Server Client 7 is suitable for through internet access institute
State monitoring server.
Using the on-line monitoring method of on-Line Monitor Device described in the present embodiment, including：
The acquisition of basic data：Under blade 1 not icing condition, the vibration data basic value of at least one blade 1 is acquired
With the basic value of the work information data of blade 1, wherein the work information data include blade rotational speed data, blade pitch angle
Data, the power data of wind-driven generator, the air speed data of wind-driven generator position and wind direction data；
Freeze on-line monitoring：After the acquisition for completing basic data, the load data, vibration data and leaf of the blade are monitored
The work information data of piece, and timing by load data monitor value and vibration data monitor value and with obtain monitor value when operating mode
The corresponding load data basic value and vibration data basic value are compared under information data the same terms, and calculating deviates
Absolute value；The load data monitor value and vibration data monitor value of at least one blade and its load data basic value and vibration
The statistical value of the absolute value of the bias of data basis value judges that blade, which occurs, to freeze when being more than threshold value.Load described in the present embodiment
Data and vibration data monitor value and its load data and the statistical value of the inclined absolute value of the difference of vibration data basic value are i.e. average
The computational methods of value are：
S=(| (load data monitor value-load data basic value)/load data basic value |+| (vibration data monitors
Value-vibration data basic value)/vibration data basic value |)/2 × 100%.
Icing monitoring is carried out to Wind turbines generator in winter using the on-Line Monitor Device described in the present embodiment, is monitored
Accuracy rate it is higher.Monitoring method described in the present embodiment is only a kind of embodiment, but is applied in practice of the present invention
The method that monitoring device is monitored is not limited thereto, as one of selectable embodiment, described in present embodiment
Sensor may be selected to be load transducer, vibrating sensor module and temperature sensor module integration module, be suitable for acquiring
Load signal, vibration signal and the temperature data of blade, in this case, the monitoring device is acquired by data acquisition unit
Load data, the vibration data of blade are monitored for staff, when being run under the cryogenic conditions less than 5 °, when the load
Lotus signal and vibration signal prompt are abnormal, i.e., when load data and vibration data vary widely in a short time, you can hair
Go out the early warning that freezes.
In addition, the threshold value stored in the fault condition judgment module can also be directly disposed as load data threshold value
And/or vibration data threshold value, the i.e. not load under icing condition and vibration data basic value, the fault condition judgment module can
By the collected load data of data acquisition unit and/or the vibration data load corresponding under identical operating mode and vibration number
It is compared according to basic value, icing early warning can be sent out when the deviation of the two is more than threshold value.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (8)
1. a kind of blade of wind-driven generator icing on-Line Monitor Device, which is characterized in that including：
Data acquisition unit, the data acquisition unit include suitable for acquisition blade loading signal and vibration signal sensor and
Data collection station, wherein the sensor is mounted on the inner surface of at least one blade；
The data collection station is connect with the sensor by signal cable, and the data collection station is mounted on three leaves
In wheel hub at piece center.
2. blade of wind-driven generator icing on-Line Monitor Device according to claim 1, which is characterized in that be additionally provided with number
According to crosspoint and monitoring server；The data exchange unit is connect with the data collection station, receives the data acquisition
Stand transmit data；The monitoring server is connect with the data exchange unit, receives what the data exchange unit transmitted
Data.
3. icing on-Line Monitor Device according to claim 1 or 2, which is characterized in that there are three the sensor settings,
Three sensors are separately mounted on the inner surface of three blades.
4. icing on-Line Monitor Device according to claim 3, which is characterized in that each sensor and the wheel hub
The distance between be less than or equal to the length of blade half.
5. blade of wind-driven generator icing on-Line Monitor Device according to claim 2, which is characterized in that the monitoring clothes
Business device is also connect with wind-driven power generation control system.
6. blade of wind-driven generator icing on-Line Monitor Device according to claim 5, which is characterized in that the monitoring clothes
Business device is provided with fault condition judgment module.
7. blade of wind-driven generator icing on-Line Monitor Device according to claim 6, which is characterized in that the sensor
For the integration module of load transducer module, vibrating sensor module and temperature sensor module, it is suitable for acquiring the load of blade
Lotus signal, vibration signal and temperature data.
8. blade of wind-driven generator icing on-Line Monitor Device according to claim 7, which is characterized in that be additionally provided with report
Alert module, the alarm module connect setting with the fault condition judgment module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855236.9U CN207701300U (en) | 2017-12-27 | 2017-12-27 | Blade of wind-driven generator icing on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855236.9U CN207701300U (en) | 2017-12-27 | 2017-12-27 | Blade of wind-driven generator icing on-Line Monitor Device |
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| Publication Number | Publication Date |
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| CN207701300U true CN207701300U (en) | 2018-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240035449A1 (en) * | 2022-07-27 | 2024-02-01 | Borealis Wind Inc. | Wind turbine ice protection system |
-
2017
- 2017-12-27 CN CN201721855236.9U patent/CN207701300U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240035449A1 (en) * | 2022-07-27 | 2024-02-01 | Borealis Wind Inc. | Wind turbine ice protection system |
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