CN101818724A - Intelligent blade of wind driven generator - Google Patents
Intelligent blade of wind driven generator Download PDFInfo
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- CN101818724A CN101818724A CN201010175128A CN201010175128A CN101818724A CN 101818724 A CN101818724 A CN 101818724A CN 201010175128 A CN201010175128 A CN 201010175128A CN 201010175128 A CN201010175128 A CN 201010175128A CN 101818724 A CN101818724 A CN 101818724A
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- driven generator
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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 invention relates to a blade of a wind driven generator, in particular to an intelligent blade of a wind driven generator. According to the technical scheme provided by the invention, the intelligent blade of the wind driven generator comprises a blade body; the blade body is arranged on a hub through a variable-pitch bearing; the hub is arranged on a wind driven generator set through a main shaft; the wind driven generator set is positioned on a tower rack; the blade body is provided with a detection device; the output end of the detection device is connected with a collector; the collector is connected with a main controller through a communication module; and the detection device detects the operating state corresponding to the blade body and transmits the operating state of the blade body to the main controller. The intelligent blade has the advantages of simple structure, real-time detection, safety, reliability, and convenient operation control.
Description
Technical field
The present invention relates to a kind of blade of wind-driven generator, especially a kind of intelligent blade of wind driven generator.
Background technique
Wind-driven generator is a kind ofly to utilize the pneumatic equipment blades made capturing wind energy, and is converted into mechanical energy, and then drives the energy machinery of generator for electricity generation.Wind-driven generator generally is installed in the abundant area of wind energy resources, and the blade diameter of wind-driven generator is big, blade each several part discontinuity, and it is frequent to quicken, slow down, and causes the damage of blade easily.
Because domestic wind-power electricity generation industry is started late, that is that all right is ripe for the manufacturing technology of wind power generating set, wind power generating set needs the service technician of specialty that wind power generating set is carried out periodical repair, maintenance or fault treatment to guarantee the reliable operation of wind power generating set in the operation phase usually.Service technician need be climbed height and use the collection of hand-held field test instrument to arrange the data of monitoring point in 40～80 meters wind-power electricity generation cabin, and overhaul according to this under wind power generating set be in outage state.Because wind energy turbine set wind power generating set quantity and separate unit wind power generating set monitoring point are more, cause the service technician repeated labor and have also brought the loss of generated energy to wind energy turbine set because of maintenance causes shutdown.Simultaneously, after the data capture of wind power generating set is finished, also need analyze image data, be not easy to understand the real-time running state of wind power generating set in the laboratory.
When the blade-tip deflection of wind-driven generator is meant the blade tip bending deflection of blade the cross section centre of form along with the linear displacement of axis normal direction.Wind-driven generator generally is installed in the abundant area of wind energy resources, is operated in the rugged environment, such as influences such as high low temperature, typhoon, thunderbolt, dust storm and various corrosion.The blade diameter of wind-driven generator is big, blade each several part discontinuity, and it is frequent to quicken, slow down, and causes the damage of blade easily.The load that blade of wind-driven generator is subjected to is big, when the leaf tip of blade is out of shape, influences the normal operation of wind-driven generator.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of intelligent blade of wind driven generator is provided, it is simple in structure, and it is good, safe and reliable to detect real-time, is convenient to blade operation and controls.
According to technological scheme provided by the invention, described intelligent blade of wind driven generator comprises blade body, and described blade body is installed on the wheel hub by pitch variable bearings; Wheel hub is installed on the wind power generating set by main shaft, and wind power generating set is positioned on the pylon; Described blade body is provided with detection device, and the output terminal of described detection device links to each other with collector, and collector is connected with master controller by communication module; Described detection device detects the running state of blade body correspondence, and the running state of described blade body is transferred to master controller.
Described detection device is vibration transducer, strain transducer or distance meter.Described distance meter is infrared distance meter, laser distance meter or excusing from death distance meter.Described strain transducer is outer foil gauge, inner pre-buried foil gauge or the pre-buried fiber optic strain sensor of pasting.Described vibration transducer is acceleration transducer or displacement transducer.When described vibration transducer is acceleration transducer or displacement transducer, also be provided with vibration spectrum analyzer between described collector and communication module, the input end of described vibration spectrum analyzer links to each other with collector, the output terminal of vibration spectrum analyzer links to each other with communication module, and described communication module links to each other with master controller; Collector is transferred to vibration spectrum analyzer with the vibration information of the detection of detection device, and described vibration spectrum analyzer receives and analyzes described oscillating signal, and the frequency spectrum of described oscillating signal is transferred to master controller by communication module; The sample frequency of described collector is 0.1Hz～30Hz.
When described distance meter was infrared distance meter, laser distance meter or excusing from death distance meter, described distance meter was fixedlyed connected with the inwall of blade body by fixed support, adhesive glue.
Advantage of the present invention:
1, in the blade tip of blade body, leaf and blade root portion vibration transducer is set, analyze the vibration situation of blade corresponding position respectively by spectrum analyzer, it is good to detect real-time.When blade body sustains damage, can the impaired position of locating blade body by master controller and memory module, can reduce time to the blade body maintenance, convenient and swift, safe and reliable.
2, the leaf tip in blade body is provided with distance meter, by the blade tip of measurement blade body and the horizontal equivalent between pylon, the blade-tip deflection of acoustic wind power generator, obtain the distortion situation of blade body, guarantee the security of operation of wind-driven generator, simple in structure, safe and reliable.
3, reach blade root portion in the blade tip in blade body, the leaf strain transducer is set, can detect the strain capacity of blade body corresponding position, become oar by master controller and remote controllers control blade pitch device, make wind-driven generator can farthest catch wind energy; And blade body can reduce running load under the blade pitch device effect, blade body is safe and reliable to operation, realizes the effective protection to blade body.
Description of drawings
Fig. 1 is embodiment 1 a structural representation.
Fig. 2 is embodiment 2 a structural representation.
Fig. 3 is embodiment 3 a structural representation.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 4: the present invention includes blade body 1, detection device 2, collector 3, master controller 4, communication module 5, vibration spectrum analyzer 6, fixed support 7, adhesive glue 8, pitch variable bearings 9, wheel hub 10, main shaft 11, pylon 12, memory module 13 and remote controllers 15.
Described blade body 1 is provided with detection device 2, and described detection device 2 detects operation information corresponding on the blade body 1; The output terminal of described detection device 2 links to each other with collector 3, and the output terminal of collector 3 is connected with master controller 4 by communication module 5.
As shown in Figure 1: described detection device 2 is the structural representation of strain transducer.In blade body 1 corresponding in blade tip, the leaf and blade root portion detection device 2 all is set, described detection device 2 be outer subsides foil gauge, inner pre-buried foil gauge or pre-buried fiber optic strain sensor; Described detection device 2 can detect the strain capacity of blade body 1 corresponding position under the effect of wind 14.The input end of collector 3 links to each other with detection device 2, and the output terminal of collector 3 is provided with communication module 5, or the output terminal of collector 3 directly links to each other with master controller 4.The strain capacity that collector 3 collecting and detecting devices 2 detect, the strain capacity that described collector 3 detects is transferred to master controller 4 by communication module 5.Collector 3 can directly be transferred to described strain capacity master controller 4 or be transferred to remote controllers 15 by communication module 5, described master controller 4 interconnects with remote controllers 15, by cooperatively interacting of 4 of remote controllers 15 and master controllers, can realize centralized control and decentralized control to blade body 1.The sample frequency of described collector 3 is 0.01～5Hz.Described master controller 4 all links to each other with the input end of blade pitch device with the output terminal of remote controllers 15, and the control blade pitch device is carried out and become the oar action, realizes that the maximum of 1 pair of wind 14 of blade body is caught.
Described blade body 1 is installed on the wheel hub 10 by pitch variable bearings 9, and wheel hub 10 is installed on the wind power generating set by main shaft 11; Described wind power generating set is positioned on the pylon 12.
As shown in Figure 1: during use, described detection device 2 detects blade body 1 under the effect of wind 14, the strain capacity that blade body 1 corresponding position produces.Described collector 3 is transferred to master controller 4 or remote controllers 15 with described strain capacity.By cooperatively interacting of 15 of controller 4 or remote controllers, can realize centralized control and decentralized control to blade body 1, control is convenient.Described master controller 4 or remote controllers 15 are further analyzed the mode of blade body 1 according to the strain capacity of correspondence, obtain the present working state of blade body 1; Obtain the working state of blade body 1 when described remote controllers 15 or master controller 4, in the time of can not at utmost catching wind energy, master controller 4 or remote controllers 15 can be revised Control Parameter corresponding in the controller, and according to the size and Orientation of current wind 14, determine the control algorithm of control wind-driven generator, revise the change oar parameter of blade pitch device, drive blade pitch device and become oar, make blade body 1 can at utmost catch wind energy, and can reduce blade body 1 load, guarantee blade body 1 safe operation.
As shown in Figure 2: described detection device 2 is the structural representation of vibration transducer.In the blade tip of described blade body 1, leaf and blade root portion be provided with detection device 2; Described detection device 2 detects in the blade tip, leaf of blade body 1 respectively and the vibratory output of the stressed generation of blade root portion.The output terminal of detection device 2 links to each other by the input end of lead with collector 3, and 5 of described collector 3 and communication modules also are provided with vibration spectrum analyzer 6.The input end of vibration spectrum analyzer 6 is connected with the output terminal of collector 3, and the output terminal of vibration spectrum analyzer 6 links to each other with communication module 5, and communication module 5 also links to each other with master controller 4.The output terminal of described vibration spectrum analyzer 6 also is provided with memory module 13.The vibratory output that described collector 3 receiving detection devices 2 are gathered, and be transferred in the vibration spectrum analyzer 6.The sample frequency of described collector 3 is 0.1Hz～30Hz.Described vibration spectrum analyzer 6 receives the vibratory output of collector 3 inputs, and extracts the frequency spectrum of described vibratory output, and is transferred in the master controller 4 by communication module 5.Described master controller 4 is judged the forced vibration situation of blade 1 according to the spectral magnitude and the frequency relation of vibratory output; And master controller 4 can be exported the frequency spectrum of vibratory output by man-machine interface, be convenient to the situation that the technician observes blade body 1 various piece forced vibration.Described vibration spectrum analyzer 6 analyzes the vibratory output of blade body 1 each several part, the vibratory output of correspondence can also be stored in the memory module 13, when stressed damage appears in blade 1, can be by extracting the rumble spectrum information in the memory module 13, the position of damage appears in locating blade body 1 fast, save the time of maintenance blade body 1, improve the utilization ratio of wind-driven generator.
Described detection device 2 comprises acceleration transducer and displacement transducer, is used to detect the vibratory output of the stressed generation of blade body 1 counterpart.
As shown in Figure 3: described detection device 2 is the structural representation of distance meter.Described pylon 12 is provided with wind power generating set, and pylon 12 fixes with ground, supports the whole wind force generating system.One end of described wind power generating set is equipped with wheel hub 10 by main shaft 11, utilizes pitch variable bearings 9 that blade body 1 is installed on the wheel hub 10.Described blade body 1 can realize vane propeller-changing by pitch variable bearings 9, farthest gathers the energy of wind 14, realizes the electric energy that sends of the maximum degree of wind-driven generator.Described blade body 1 is subjected to the load effect of wind 14, can produce blade-tip deflection at the leaf tip of blade body 1, and then influence the safe operation of whole wind force generating system.Described blade body 1 is provided with fixedly connected detection device 2 corresponding to the inwall of blade tip; Described detection device 2 is infrared distance meter, laser distance meter or excusing from death distance meter.Detection device 2 carries out corresponding emission angle adjustment with pitch variable bearings 9 according to the position of blade body 1, guarantees that pylon 12 is in the measuring range of detection device 2.The output terminal of detection device 2 links to each other with collector 3, and the output terminal of described collector 3 links to each other with master controller 4 or the output terminal of collector 3 is provided with communication module 5, and collector 3 links to each other with master controller 4 by communication module 5.When the leaf tip of blade body 1 rotated to pylon 12 corresponding positions, described detection device 2 detected leaf tip and 12 horizontal equivalent L of pylon of blade body 1; The algorithm of judging with pylon 12 distances is set in the described master controller 4, and the interference that aerial floating debris such as aerial flying bird, sandstone, plastic bag brings measurement can be judged and discern to described algorithm.The horizontal equivalent L scope that leaf tip by measuring blade body 1 and pylon are 12, the scope of described horizontal equivalent L is 0～10 meter; When the scope of horizontal equivalent L surpasses the length range of 12 of blade body 1 and pylons, can determine that blade body 1 is when being subjected to the load of wind 14, blade body 1 has produced distortion, by the operation of master controller 4 control whole systems, guarantees the safe operation of wind-power generating system.Described detection device 2 is transferred to master controller 4 with the horizontal equivalent L that measures by collector 3, and described master controller 4 provides control strategy for the safety system in the wind-driven generator.
As shown in Figure 4: described blade body 1 is provided with fixed support 7 corresponding to leaf tip, and fixed support 7 utilizes adhesive glue 8 to fixedly connected with blade body 1 inwall.Form groove between the inwall of described fixed support 7 and blade body 1, detection device 2 is set in the described groove, thereby detection device 2 and blade body 1 are fixedly connected.Phase ratio detection device 2 is arranged on the pylon 12, when detection device 2 is arranged on the blade body 1, blade body 1 is rotated and during deflection, when as long as the position that blade body 1 and pylon are 12 is complementary, the detection device 2 on the blade body 1 just can detect the distance of 12 of blade body 1 and pylons; And detection device 2 is when being arranged on the pylon 12, need to be provided with some equally distributed detection devices on the described pylon 12, guarantee that blade body 1 when rotation and deflection, also can detect the distance of 12 of blade body 1 and pylons, increased the cost and the complexity that detect.
As shown in Figure 3 and Figure 4: during the wind-driven generator operation, need carry out startup self-detection to system.When system failure self check detects the system failure, the distance measuring signal of master controller 4 shield detection devices 2, the halt system operation guarantees security of system.When system failure self check detection system is moved just often, utilize blade body 1 to measure the leaf tip of blade body 1 and the horizontal equivalent L of 12 of pylons corresponding to the detection device 2 of leaf tip, the horizontal equivalent L of described detection device 2 measurements is transferred to master controller 4 by collector 3.Described master controller 4 judges whether the horizontal equivalent L that detection device 2 detects effective, when described horizontal equivalent L be one very big or very little when digital, master controller 4 judges that described horizontal equivalent L is invalid; When horizontal equivalent L is invalid, the horizontal equivalent L that detection device 2 continuation measurement blade body 1 and pylon are 12; When the horizontal equivalent L of detection device 2 detections was effective, whether what master controller 4 was judged detection device 2 mensuration was the distance of pylon 12; When detection device 2 mensuration were not pylon 12, master controller 4 continued the measurement horizontal equivalent L of collecting and detecting devices 2; When being determined as pylon 12, master controller 4 calculates and writes down the minimum value of the horizontal equivalent L of blade body 1 and pylon 12.When the minimum value of described horizontal equivalent L surpassed the horizontal equivalent L scope of blade body 1 and 12 of pylons, master controller 4 was by reporting to the police or startup safety system program, guaranteed that wind-driven generator can safe operation; When the minimum value of described horizontal equivalent L meets the horizontal equivalent L scope of 12 of blade body 1 and pylons, master controller 4 continues the horizontal equivalent L that collecting and detecting device 2 is measured, whole measuring phase circulates down, can detect the distortion that blade body 1 produces in real time under the load effect of wind-engaging 14, and according to the amount of deflection of blade body 1 leaf tip, the tower situation of beating that judgement may occur by taking corresponding measure, guarantees the security of operation of whole wind power generator.
The interference that brings when also being provided with 1 vibration of identification blade body in the described master controller 4; Described master controller 4 can utilize as Fourier transform scheduling algorithm identification blade body 1 or pylon 12 vibration situations, avoids surveying detection device 2 and measures the interference that brings, and influences the operation of wind-driven generator.
The present invention in the blade tip of blade body 1, leaf and blade root portion detection device 2 is set, described detection device 2 involving vibrations sensors, strain transducer and distance meter.By the information of detection device 2 detection blade body 1 correspondence, master controller 4 can be judged the running state of blade body 1, can realize becoming oar by the blade pitch device of wind-driven generator, realizes the automatic control to wind-driven generator; Guarantee blade of wind-driven generator body 1 reliable operation, simple in structure, easy to operate.
Claims (7)
1. an intelligent blade of wind driven generator comprises blade body (1), and described blade body (1) is installed on the wheel hub (10) by pitch variable bearings (9); Wheel hub (10) is installed on the wind power generating set by main shaft, wind power generating set is positioned on the pylon (12), it is characterized in that: described blade body (1) is provided with detection device (2), the output terminal of described detection device (2) links to each other with collector (3), and collector (3) is connected with master controller (4) by communication module (5); Described detection device (2) detects the corresponding running state of blade body (1), and the running state of described blade body (1) is transferred to master controller (4).
2. intelligent blade of wind driven generator according to claim 1 is characterized in that: described detection device (2) is vibration transducer, strain transducer or distance meter.
3. intelligent blade of wind driven generator according to claim 2 is characterized in that: described distance meter is infrared distance meter, laser distance meter or excusing from death distance meter.
4. intelligent blade of wind driven generator according to claim 2 is characterized in that: described strain transducer is outer foil gauge, inner pre-buried foil gauge or the pre-buried fiber optic strain sensor of pasting.
5. intelligent blade of wind driven generator according to claim 2 is characterized in that: described vibration transducer is acceleration transducer or displacement transducer.
6. intelligent blade of wind driven generator according to claim 5, it is characterized in that: be provided with vibration spectrum analyzer (6) between described collector (3) and communication module (5), the input end of described vibration spectrum analyzer (6) links to each other with collector (3), the output terminal of vibration spectrum analyzer (6) links to each other with communication module (5), and described communication module (5) links to each other with master controller (4); Collector (3) is transferred to vibration spectrum analyzer (6) with the vibration information of the detection of detection device (2), described vibration spectrum analyzer (6) receives and analyzes described oscillating signal, and the frequency spectrum of described oscillating signal is transferred to master controller (4) by communication module (5); The sample frequency of described collector (3) is 0.1Hz～30Hz.
7. intelligent blade of wind driven generator according to claim 3, it is characterized in that: when described distance meter was infrared distance meter, laser distance meter or excusing from death distance meter, described distance meter was fixedlyed connected with the inwall of blade body (1) by fixed support (7), adhesive glue (8).
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| CN201010175128A CN101818724A (en) | 2010-05-11 | 2010-05-11 | Intelligent blade of wind driven generator |
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| CN201010175128A CN101818724A (en) | 2010-05-11 | 2010-05-11 | Intelligent blade of wind driven generator |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588213A (en) * | 2011-01-17 | 2012-07-18 | 孙首泉 | Intelligent monitoring device for blades of wind driven generator |
| CN102620937A (en) * | 2011-01-31 | 2012-08-01 | 华锐风电科技(集团)股份有限公司 | Wind driven generator and parameter collection system thereof |
| CN104564947A (en) * | 2015-01-27 | 2015-04-29 | 内蒙古工业大学 | Method of pasting wind turbine blade stress gauge |
| CN105804954A (en) * | 2016-05-05 | 2016-07-27 | 内蒙古工业大学 | Telemetering method and testing device of dynamic signals of rotating blades of wind driven generator |
| CN106679611A (en) * | 2017-01-23 | 2017-05-17 | 武汉科技大学 | Internal strain measuring device of KR desulphurization stirrer blades |
| CN106837709A (en) * | 2017-04-20 | 2017-06-13 | 北京金风科创风电设备有限公司 | Monitoring method and monitoring system for wind generating set blade |
| CN107781118A (en) * | 2017-10-25 | 2018-03-09 | 西安锐益达风电技术有限公司 | Blade of wind-driven generator health status monitoring system based on multi-sensor information |
| CN107989828A (en) * | 2018-01-08 | 2018-05-04 | 大连理工大学 | A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device |
| CN110318956A (en) * | 2019-07-22 | 2019-10-11 | 内蒙古科技大学 | A kind of blade structure for wind driven generator damage detecting method based on spectrum analysis |
| CN110869608A (en) * | 2017-07-14 | 2020-03-06 | 福斯4X股份有限公司 | Strain and vibration measurement system for monitoring rotor blades |
| CN112969570A (en) * | 2018-10-30 | 2021-06-15 | 赛峰飞机发动机公司 | Hybridization of fibres of fibre reinforcement of blades |
| CN113833597A (en) * | 2020-06-08 | 2021-12-24 | 江苏金风科技有限公司 | Blade, wind generating set, monitoring system and monitoring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588213B (en) * | 2011-01-17 | 2014-09-17 | 孙首泉 | Intelligent monitoring device for blades of wind driven generator |
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| CN104564947A (en) * | 2015-01-27 | 2015-04-29 | 内蒙古工业大学 | Method of pasting wind turbine blade stress gauge |
| CN105804954A (en) * | 2016-05-05 | 2016-07-27 | 内蒙古工业大学 | Telemetering method and testing device of dynamic signals of rotating blades of wind driven generator |
| CN105804954B (en) * | 2016-05-05 | 2018-03-23 | 内蒙古工业大学 | A kind of Rotating Blades of Wind Turbine Dynamic Signal method of telemetering and experimental rig |
| CN106679611A (en) * | 2017-01-23 | 2017-05-17 | 武汉科技大学 | Internal strain measuring device of KR desulphurization stirrer blades |
| CN106837709A (en) * | 2017-04-20 | 2017-06-13 | 北京金风科创风电设备有限公司 | Monitoring method and monitoring system for wind generating set blade |
| CN110869608A (en) * | 2017-07-14 | 2020-03-06 | 福斯4X股份有限公司 | Strain and vibration measurement system for monitoring rotor blades |
| CN107781118A (en) * | 2017-10-25 | 2018-03-09 | 西安锐益达风电技术有限公司 | Blade of wind-driven generator health status monitoring system based on multi-sensor information |
| CN107781118B (en) * | 2017-10-25 | 2019-11-05 | 西安锐益达风电技术有限公司 | Blade of wind-driven generator health status monitoring system based on multi-sensor information |
| CN107989828B (en) * | 2018-01-08 | 2019-09-27 | 大连理工大学 | A kind of safety device winged suitable for the anti-blade throwing of trunnion axis blower |
| CN107989828A (en) * | 2018-01-08 | 2018-05-04 | 大连理工大学 | A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device |
| CN112969570A (en) * | 2018-10-30 | 2021-06-15 | 赛峰飞机发动机公司 | Hybridization of fibres of fibre reinforcement of blades |
| CN112969570B (en) * | 2018-10-30 | 2023-07-07 | 赛峰飞机发动机公司 | Hybridization of fibers of a fiber reinforcement of a blade |
| CN110318956A (en) * | 2019-07-22 | 2019-10-11 | 内蒙古科技大学 | A kind of blade structure for wind driven generator damage detecting method based on spectrum analysis |
| CN113833597A (en) * | 2020-06-08 | 2021-12-24 | 江苏金风科技有限公司 | Blade, wind generating set, monitoring system and monitoring method |
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Application publication date: 20100901 |