CN109578224A - A kind of safety monitoring system of wind-power generating unit tower - Google Patents
A kind of safety monitoring system of wind-power generating unit tower Download PDFInfo
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- CN109578224A CN109578224A CN201910098764.1A CN201910098764A CN109578224A CN 109578224 A CN109578224 A CN 109578224A CN 201910098764 A CN201910098764 A CN 201910098764A CN 109578224 A CN109578224 A CN 109578224A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
Abstract
The safety monitoring system of a kind of wind-power generating unit tower provided by the present application, comprising: data collection station and data processing terminal；Data collection station specifically includes: data acquisition module and data transmission module；Data acquisition module includes several sensing elements, and sensing element is respectively arranged at each monitoring point on pylon；Data transmission module is used to the monitoring data of data collecting module collected being sent to data processing terminal；Data processing terminal specifically includes: data analysis module and data monitoring module；Data analysis module is used to obtain pylon status monitoring result by preset pylon stress state analysis algorithm according to the monitoring data received.The status monitoring of current wind-driven generator tower frame is solved dependent on manual inspection, so that pylon operating status cannot effectively manage the caused technical problem that wind power generating set is collapsed in the process of running or the probability of happening of the accident of unstability is high.
Description
Technical field
This application involves power equipment O&M field more particularly to a kind of safety monitoring systems of wind-power generating unit tower
System.
Background technique
Increasingly depleted with fossil energy recently as constantly deteriorating for global climate environment, new energy gradually comes into people
The visual field.Wind energy obtains rapid growth as more mature a kind of cleaning and renewable energy installed capacity is developed.Due to
The working environment of wind power generating set is complex, among the shearing wind, fitful wind and typhoon that ground floor is formed, wind turbine tower
The frame load bearing component important as unit belongs to typical elongated shell structure, and bottom end is fixed, top freely and bear cabin and
The gravity and aerodynamic loading of wind wheel, the structure type are easy to happen vibration and unstability.However, current wind-driven generator tower frame
Status monitoring is also to rely on manual inspection, so that pylon operating status cannot be managed effectively, leads to wind power generating set
Collapse in the process of running or technical problem that the probability of happening of the accident of unstability is high.
Summary of the invention
This application provides a kind of safety monitoring systems of wind-power generating unit tower, for solving current wind-power electricity generation
The status monitoring of machine pylon is also to rely on manual inspection, so that pylon operating status cannot be managed effectively, leads to wind-force
The technical problem that generating set collapses in the process of running or the probability of happening of the accident of unstability is high.
In view of this, this application provides a kind of safety monitoring systems of wind-power generating unit tower, comprising: data acquisition
Terminal and data processing terminal；
The data collection station specifically includes: data acquisition module and data transmission module；
The data acquisition module includes several sensing elements, and the sensing element is respectively arranged at each on pylon
Monitoring point；
The monitoring data of the data collecting module collected for being sent at the data by the data transmission module
Manage terminal；
The data processing terminal specifically includes: data analysis module and data monitoring module；
The data analysis module is used to pass through preset pylon stress state point according to the monitoring data received
Analyse algorithm, obtain pylon status monitoring as a result, and by the pylon status monitoring result be sent to the data monitoring module into
Row display.
Optionally, the data processing terminal further include: data memory module；
The data memory module is for receiving the monitoring data and summarized and stored, then by the monitoring data
It is sent to the data analysis module.
Optionally, the sensing element specifically includes: acceleration transducer, foil gauge, obliquity sensor and piezoelectric ceramics
Gasket；
The acceleration transducer is set in the levelling bench inside the pylon, for obtaining the vibration of the pylon
Information；
The foil gauge is set on the inner wall of the pylon, for obtaining the ess-strain information of the pylon；
The obliquity sensor is horizontally placed on the top of the pylon；
The piezoelectric ceramics gasket is fitted and connected with fastener to be monitored in the pylon.
Optionally, the data analysis module specifically includes: vibration analysis submodule；
The vibration information that the vibration analysis submodule is used to be got according to the acceleration transducer passes through pre-
The tower oscillation time-frequency domain index and vibrational waveform parser set, obtain tower oscillation monitoring result.
Optionally, the data analysis module specifically includes: stress-strain analysis submodule；
The stress-strain analysis submodule is used for the ess-strain information got according to the foil gauge, passes through
Preset Wind-load Analysis algorithm obtains the pylon stress monitoring result of the wind load horizontal data comprising the pylon.
Optionally, the data analysis module specifically includes: Instability Analysis submodule；
The Instability Analysis submodule is used for according to the collected tower post tilting information of the obliquity sensor, by by institute
It states tower post tilting information to be compared with preset inclination angle threshold value, obtains pylon inclination angle detection result.
Optionally, the data analysis module specifically includes: fastener loose analysis submodule；
The fastener loose analysis submodule is used for the pressure value signal got according to the piezoelectric ceramics gasket, root
It is compared according to the pressure value signal with preset pressure value threshold value, obtains pylon fastener and loosen monitoring result.
Optionally, further includes: alarm modules；
The alarm modules are used to when the pylon status monitoring result of data analysis module output be that pylon state is different
Chang Shi generates alarm signal and is sent to the data monitoring module and is shown.
Optionally, the data transmission module specifically: mobile communication module.
Optionally, the foil gauge is specially resistor-type foil gauge.
As can be seen from the above technical solutions, the embodiment of the present application has the advantage that
A kind of safety monitoring system of wind-power generating unit tower provided by the present application, comprising: data collection station sum number
According to processing terminal；The data collection station specifically includes: data acquisition module and data transmission module；The data acquisition module
Block includes several sensing elements, and the sensing element is respectively arranged at each monitoring point on pylon；The data transmit mould
Block is used to the monitoring data of the data collecting module collected being sent to the data processing terminal；The data processing terminal
It specifically includes: data analysis module and data monitoring module；The data analysis module is used for according to the monitoring received
Data obtain pylon status monitoring result by preset pylon stress state analysis algorithm.Solves current wind-power electricity generation
The status monitoring of machine pylon is also to rely on manual inspection, so that pylon operating status cannot be managed effectively, caused wind
The technical problem that power generator group is collapsed in the process of running or the probability of happening of the accident of unstability is high.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of configuration diagram of the safety monitoring system of wind-power generating unit tower provided by the present application.
Specific embodiment
The embodiment of the present application provides a kind of safety monitoring system of wind-power generating unit tower, for solving current wind
The status monitoring of power generator pylon is also to rely on manual inspection, so that pylon operating status cannot be managed effectively, leads
Cause the technical problem that wind power generating set is collapsed in the process of running or the probability of happening of the accident of unstability is high.
To enable present invention purpose, feature, advantage more obvious and understandable, below in conjunction with the application
Attached drawing in embodiment, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that disclosed below
Embodiment be only some embodiments of the present application, and not all embodiment.Based on the embodiment in the application, this field
Those of ordinary skill's all other embodiment obtained without making creative work belongs to the application protection
Range.
Referring to Fig. 1, present embodiments providing a kind of safety monitoring system of wind-power generating unit tower, comprising: data
Acquisition terminal 1 and data processing terminal 2；
Data collection station 1 specifically includes: data acquisition module 101 and data transmission module 102；
Data acquisition module 101 includes several sensing elements, and sensing element is respectively arranged at each monitoring on pylon
Point；
Data transmission module 102 is used to the monitoring data that data acquisition module 101 acquires being sent to data processing terminal
2；
Data processing terminal 2 specifically includes: data analysis module 201 and data monitoring module 202；
Data analysis module 201 is used to be calculated according to the monitoring data received by preset pylon stress state analysis
Method obtains pylon status monitoring as a result, and pylon status monitoring result is sent to data monitoring module 202 showing.
It should be noted that the system with the present embodiment carries out ess-strain monitoring to wind-power generating unit tower, it is main
Want the following steps are included:
Installation data acquisition terminal 1 first, and according to the structure type of windmill tower frame and it is expected that loading conditions
Sensing element is arranged in each monitoring point of pylon.
Then acquisition mode and data storage method are configured.Acquisition mode includes that every wind energy conversion system acquisition equipment is each
The corresponding transducer sensitivity of a measuring point, sample frequency, sampling length, acquisition time interval etc.；Data storage method includes depositing
Store up format, storage location, storage strategy.The application tests DH5910 firm Dynamic Data Acquiring analysis system using east China,
Acquisition equipment is placed on tower bottom platform, and tower bottom platform space is enough and has power supply, and easy for installation.
Followed by data transmission module 102 by the collected monitoring data of data acquisition module 101, pass through wireless network reality
When be transmitted to the data processing terminal 2 for being set to control centre.
Then the data that data transmission module 102 is sent are received by the data memory module 203 of data processing terminal 2,
Data are classified and stored according to blower number, measurement number, measuring point type and time of measuring.
Then state recognition and event are carried out to pylon by pre-set mechanical analysis algorithm by data analysis module 201
Barrier diagnosis.State recognition and fault diagnosis identify pylon frequency including the use of power spectrum method, followed by stochastic subspace
Method identifies the modal parameter of pylon, rejects false mode, obtains the frequency and the vibration shape of pylon；Pylon maximum stress strain point
Record, each section strain and load prolong the variation of tower height, wind energy conversion system load level；Become according to the impedance spectrum of Piezoelectric Impedance piece
Change obtains the elastic state of pylon bolt；The strain early warning of wind energy conversion system unstability is provided in conjunction with tower material characteristic and combines wind function
The monitoring result that rate is predicted to provide the fatigue life of pylon, and analysis is obtained passes through the display equipment of data monitoring module 202
It is shown.
The wind-power generating unit tower safety monitoring system provided through this embodiment, overcomes current wind-driven generator
The status monitoring of pylon is also to rely on the Industry of manual inspection, so that pylon operating status cannot be managed effectively,
The technical problem that caused wind power generating set is collapsed in the process of running or the probability of happening of the accident of unstability is high.
More specifically, data processing terminal 2 further include: data memory module 203；
Data memory module 203 is used to receive the monitoring data and be summarized and stored, then monitoring data are sent
To data analysis module 201.
It should be noted that data memory module 203, including data are stored hardware device, data are carried out
Receive the database software and storage control program of management.It is mainly responsible for the reception and storage of wind turbine tower rack data, is rung simultaneously
The data query requirement of data analysis module 201 is answered, meanwhile, the transmission of data collection station 1 is received in data processing terminal 2
After monitoring data, before carrying out data analysis by data analysis module 201, it will be received first with data memory module 203
The monitoring data arrived carry out structured storage, are not only convenient for the monitoring data of management magnanimity, are also convenient for the sieve of data analysis module 201
It is selected to the monitoring data of analysis.
In the present embodiment, the database that data memory module 203 is selected is Microsoft SQL Server2012.
More specifically, sensing element specifically includes: acceleration transducer, foil gauge, obliquity sensor and piezoelectric ceramics pad
Piece；
Acceleration transducer is set in the levelling bench inside pylon, for obtaining the vibration information of pylon；
Foil gauge is set on the inner wall of pylon, for obtaining the ess-strain information of pylon；
Obliquity sensor is horizontally placed on the top of pylon；
Piezoelectric ceramics gasket is fitted and connected with fastener to be monitored in pylon.
It should be noted that data acquisition module 101, several sensing elements, are responsible for adopting the data of windmill tower frame
Collection, including vibration acceleration, ess-strain, tower post tilting angle, the elastic state of bolt etc..101 pairs of data acquisition module vibrations add
The output signal of velocity sensor, resistance strain gage and Piezoelectric Impedance piece is acquired, and is translated into corresponding digital quantity,
Then output result is transmitted to data memory module 203 by wireless transmission.The module can also be configured acquisition parameter.
For tower oscillation information, the vibration that the position of acceleration transducer depends on windmill tower frame is special
Property.From the vibration shape, there are mainly three types of forms for tower oscillation: front and back bending, lateral bending, torsion；Meanwhile the pylon vibration shape exists
The high order modes such as one first order mode, second_mode, three first order modes, but focus primarily upon a first order mode of X, Y-direction.In the present embodiment
In preferentially have chosen Harbin be proficient in Science and Technology Development Co., Ltd. manufacture JBA series force-balanced accelerometer, be mounted on
On wind-power generating unit tower internal platform X, Y-direction.
The arrangement of acquisition for ess-strain information, foil gauge will the determination of the stress according to suffered by tower.It considers
The influence of tower inner satellite structure and tower door opening is arranged single at pylon and basic junction and pylon maximum stress
Axial strain piece, and the deformation of cruciate flower foil gauge and uniaxial strain piece monitoring door opening should be arranged around door opening.In view of wind-force
Machine has the characteristics that run wind, and foil gauge should be arranged into whole circumference, but need not be arranged overstocked.Due to current large-scale wind
Power machine pylon is mostly elongated shell structure, by rainwater outside pylon, dust, and the influence radiated etc., so foil gauge should be pasted
Inside pylon.Using resistance strain gage, obtained strain data is converted by electrical measuring method by voltage signal and carries out data
Acquisition.
Monitoring to tower post tilting angle, since the gradient of windmill tower frame changes mainly based on X, Y-direction, and tower top
Inclination angle it is maximum, therefore obliquity sensor is arranged in tower top X, Y-direction each one.Incline according to the angle of wind energy conversion system tower is small
Oblique angle feature is chosen high-precise uniaxial sensor with data readout inclinator and is monitored.
The monitoring of state elastic for bolt, is pasted on gasket using piezoelectric ceramics sensing element.In use, by this spy
Gasket is installed together with bolt, and then is realized and monitored to bolt looseness.
More specifically, data analysis module 201 specifically includes: vibration analysis submodule；
The vibration information that vibration analysis submodule is used to be got according to acceleration transducer passes through preset tower oscillation
Time-frequency domain index and vibrational waveform parser, obtain tower oscillation monitoring result.
More specifically, data analysis module 201 specifically includes: stress-strain analysis submodule；
Stress-strain analysis submodule is used for the ess-strain information got according to foil gauge, passes through preset wind load
Parser obtains the pylon stress monitoring result of the wind load horizontal data comprising pylon.
More specifically, data analysis module 201 specifically includes: Instability Analysis submodule；
Instability Analysis submodule is used for according to the collected tower post tilting information of obliquity sensor, by believing tower post tilting
Breath is compared with preset inclination angle threshold value, obtains pylon inclination angle detection result.
More specifically, data analysis module 201 specifically includes: fastener loose analysis submodule；
Fastener loose analysis submodule is used for the pressure value signal got according to piezoelectric ceramics gasket, according to pressure value
Signal is compared with preset pressure value threshold value, obtains pylon fastener and loosens monitoring result.
More specifically, further includes: alarm modules；
Alarm modules are used for when the pylon status monitoring result that data analysis module 201 exports is pylon abnormal state,
It generates alarm signal and is sent to data monitoring module 202 and shown.
More specifically, data transmission module 102 specifically: mobile communication module.
More specifically, foil gauge is specially resistor-type foil gauge.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical property, mechanical or other forms.
The description of the present application and term " first " in above-mentioned attached drawing, " second ", " third ", " the 4th " etc. are (if deposited
) it is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that use in this way
Data are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of safety monitoring system of wind-power generating unit tower characterized by comprising at data collection station and data
Manage terminal；
The data collection station specifically includes: data acquisition module and data transmission module；
The data acquisition module includes several sensing elements, and the sensing element is respectively arranged at each monitoring on pylon
Point；
The data transmission module is used to for the monitoring data of the data collecting module collected to be sent to the data processing whole
End；
The data processing terminal specifically includes: data analysis module and data monitoring module；
The data analysis module is used to be calculated according to the monitoring data received by preset pylon stress state analysis
Method obtains pylon status monitoring as a result, and the pylon status monitoring result is sent to the data monitoring module showing
Show.
2. a kind of safety monitoring system of wind-power generating unit tower according to claim 1, which is characterized in that the number
According to processing terminal further include: data memory module；
The data memory module is used to receive the monitoring data and be summarized and stored, then the monitoring data are sent
To the data analysis module.
3. a kind of safety monitoring system of wind-power generating unit tower according to claim 1, which is characterized in that the sensing element
Part specifically includes: acceleration transducer, foil gauge, obliquity sensor and piezoelectric ceramics gasket；
The acceleration transducer is set in the levelling bench inside the pylon, and the vibration for obtaining the pylon is believed
Breath；
The foil gauge is set on the inner wall of the pylon, for obtaining the ess-strain information of the pylon；
The obliquity sensor is horizontally placed on the top of the pylon；
The piezoelectric ceramics gasket is fitted and connected with fastener to be monitored in the pylon.
4. a kind of safety monitoring system of wind-power generating unit tower according to claim 3, which is characterized in that the number
It is specifically included according to analysis module: vibration analysis submodule；
The vibration information that the vibration analysis submodule is used to be got according to the acceleration transducer passes through preset
Tower oscillation time-frequency domain index and vibrational waveform parser, obtain tower oscillation monitoring result.
5. a kind of safety monitoring system of wind-power generating unit tower according to claim 3, which is characterized in that the number
It is specifically included according to analysis module: stress-strain analysis submodule；
The stress-strain analysis submodule is used for the ess-strain information got according to the foil gauge, by preset
Wind-load Analysis algorithm, obtain comprising the pylon wind load horizontal data pylon stress monitoring result.
6. a kind of safety monitoring system of wind-power generating unit tower according to claim 3, which is characterized in that the number
It is specifically included according to analysis module: Instability Analysis submodule；
The Instability Analysis submodule is used for according to the collected tower post tilting information of the obliquity sensor, by by the tower
Frame inclination information is compared with preset inclination angle threshold value, obtains pylon inclination angle detection result.
7. a kind of safety monitoring system of wind-power generating unit tower according to claim 3, which is characterized in that the number
It is specifically included according to analysis module: fastener loose analysis submodule；
The fastener loose analysis submodule is used for the pressure value signal got according to the piezoelectric ceramics gasket, according to institute
It states pressure value signal to be compared with preset pressure value threshold value, obtains pylon fastener and loosen monitoring result.
8. a kind of safety monitoring system of wind-power generating unit tower according to claim 1, which is characterized in that also wrap
It includes: alarm modules；
The alarm modules are used for when the pylon status monitoring result that the data analysis module exports is pylon abnormal state,
It generates alarm signal and is sent to the data monitoring module and shown.
9. a kind of safety monitoring system of wind-power generating unit tower according to claim 1, which is characterized in that the number
According to transmission module specifically: mobile communication module.
10. a kind of safety monitoring system of wind-power generating unit tower according to claim 3, which is characterized in that described
Foil gauge is specially resistor-type foil gauge.
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| CN110173399A (en) * | 2019-06-06 | 2019-08-27 | 上海电力学院 | A kind of offshore wind turbine bolt looseness detection system and method |
| CN110749407A (en) * | 2019-10-29 | 2020-02-04 | 唐山市曹妃甸区住房和城乡建设局 | System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure |
| CN110765696A (en) * | 2019-11-26 | 2020-02-07 | 国家电投集团徐闻风力发电有限公司 | Dynamic simulation platform, system and method for bolt loosening fault of tower vibration |
| CN112483332A (en) * | 2020-12-07 | 2021-03-12 | 国家电投集团徐闻风力发电有限公司 | Safety monitoring method, monitoring system and processing terminal for wind generating set tower |
| CN114993453A (en) * | 2022-08-05 | 2022-09-02 | 武汉理工大学 | Bridge vibration mode monitoring system and method based on fiber bragg grating array sensing |
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