CN202533424U - Automatic detection warning system for blade cracks of wind-driven generator - Google Patents
Automatic detection warning system for blade cracks of wind-driven generator Download PDFInfo
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- CN202533424U CN202533424U CN2012201479471U CN201220147947U CN202533424U CN 202533424 U CN202533424 U CN 202533424U CN 2012201479471 U CN2012201479471 U CN 2012201479471U CN 201220147947 U CN201220147947 U CN 201220147947U CN 202533424 U CN202533424 U CN 202533424U
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Abstract
The utility model discloses an automatic detection warning system for blade cracks of a wind-driven generator. The system comprises a detection device and a control device. The detection device automatically detects blade states through deformation of a paste resistance strain gauge, controls a warning module to send warning signals, and further has a function of detecting humiture information in surroundings while detecting the blade states. Interconnection in the system can be realized through a ZigBee network without complex network wiring, and the system is simple in structure. GPRS communication is realized between the system and the outside so as to bring convenience for an administrative department to timely acquire the blade state and humiture information. The system adopts low-power consumption devices and a method of detecting at a regular time and sleeping during the rest of time, and accordingly power consumption is reduced to the greatest extent. The automatic detection warning system for blade cracks of the wind-driven generator can be widely applicable to automatic real-time detection of the blade states of a wind-driven generator set, warning for blades with cracks is sent by the aid of the detection technology, safe and reliable operation of the blades is guaranteed, and the automatic detection warning system for blade cracks of the wind-driven generator has wide economic benefits and social benefits.
Description
Technical field
The utility model belongs to wind power generation field, the automatic detection alarm of particularly a kind of blade of wind-driven generator crackle system.
Background technology
Serious day by day along with the world energy sources crisis, and the public grows to even greater heights for the cry that requires of improving the ecological environment, wind energy receives the attention of national governments day by day as a kind of regenerative resource of cleaning.The wind-power electricity generation industry just progressively develops into the new industry that begins to take shape.See that from long-term interest wind-power electricity generation is to guarantee the STRATEGIES OF SUSTAINABLE DEVELOPMENT behave.Blade is one of critical component of aerogenerator, and cost accounts for 15～20% of wind-powered electricity generation machine total cost, and the performance of blade directly affects wind efficiency of motor, life-span and performance.Generally in operation from far-off regions or marine, fan blade load in operational process is complicated for aerogenerator, and condition of work is harsh.So crackle in various degree can appear in the fan blade of long-time running, finally causes leaf destruction, bring serious threat for the safe operation of whole wind group of motors, even cause the generation of major accident.Therefore, it is particularly important real-time state monitoring being carried out in fan blade crackle damage.Present blade crack detection technology mainly concentrates in the leaf blade manufacture process; If can monitor the state of blade in real time, find the damage of blade in early days, according to actual conditions blade is in time safeguarded; Just can guarantee the safe and reliable of blade, reduction accident and maintenance cost.
Present disclosed blade crack detecting method mainly contains replica method, potential method, microscope direct observing method and acoustic emission etc.Replica method has lower cost and high resolution very, but labour intensity is big, and is time-consuming, and is difficult to be applicable to the experimental enviroment beyond the laboratory; Potential method is applicable to the crack propagation in high temperature and corrosive medium; The microscope direct observing method is the most direct method of testing in the whole bag of tricks, and characteristics are that resolving power is high, and precision is high, can be used for the hot environment ambient condition, but with high costs; Acoustic emission receives the restriction of material hardly, can carry out dynamic monitoring to the germinating and the expansion of crackle, but the mechanical noise in the actual environment can cause interference to monitoring system.
In sum; These methods have realized the detection to the crackle damage to a certain extent; But because the employing said method detects blade of wind-driven generator or workload is big, perhaps efficient is lower, and perhaps cost is high; Therefore can not effectively be applied to be difficult to popularized in the detection of large fan blade crackle.
The utility model content
The technical matters that the utility model solved is to provide the automatic detection alarm of a kind of crackle of blade of wind-driven generator efficiently system.
The technical solution that realizes the utility model purpose is: the automatic detection alarm of a kind of blade of wind-driven generator crackle system; Comprise plurality of detection device and opertaing device; Said pick-up unit is installed on the blade of wind-powered electricity generation unit; This pick-up unit is connected through the ZigBee communication with opertaing device, gives opertaing device with the result transmission that detects; Said pick-up unit comprises flush bonding processor nucleus module, some crack detection modules, humiture detection module, LED alarm module and ZigBee wireless communication interface; Said crack detection module is connected with the flush bonding processor nucleus module; The blade status signal that detects is transferred to the flush bonding processor nucleus module; The humiture detection module is connected with the flush bonding processor nucleus module; Detected temperature-humidity signal is transferred to the flush bonding processor nucleus module, and the LED alarm module is connected with the flush bonding processor nucleus module, under the control of flush bonding processor nucleus module, reports to the police; The ZigBee wireless communication interface is connected with the flush bonding processor nucleus module, for it provides wireless communication interface.
A kind of blade of wind-driven generator crackle automatic testing method may further comprise the steps:
Crack detection module in step 1, the pick-up unit detects the blade of wind-driven generator state, and signal is transferred to the flush bonding processor nucleus module, has judged whether crackle by this module, if having then execution in step 2, otherwise execution in step 3;
Step 2, LED alarm module begin to report to the police;
Humiture detection module in step 3, the pick-up unit detects the humiture of wind field, and temperature-humidity signal is transferred to the flush bonding processor nucleus module;
Step 4, flush bonding processor nucleus module are transferred to opertaing device after blade status signal and temperature-humidity signal are gathered;
Step 5, opertaing device are transferred to administrative authority after the signal of plurality of detection device is gathered.
The utility model compared with prior art; Its remarkable advantage is: 1) system can real time automatic detection blade state, finds the damage of blade in early days and safeguards that in time automaticity is high; Can have boundless application prospect for the wind electricity blade management provides decision-making foundation; 2) system has the humiture measuring ability, can when detecting the blade state, detect the humiture situation; 3) system adopts the ZigBee radio network technique, does not need complicated network layout, and is simple in structure; 4) system adopts GPRS or ethernet communication, is convenient to administrative authority and in time grasps the blade state; 5) only when regularly detecting, wake pick-up unit up, low in energy consumption.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is that the system of the utility model forms and the principle of work synoptic diagram.
Fig. 2 is that the pick-up unit of the utility model is formed synoptic diagram.
Fig. 3 is that the opertaing device of the utility model is formed synoptic diagram.
Fig. 4 is that the flush bonding processor core cell of the utility model is formed synoptic diagram.
Fig. 5 is the workflow synoptic diagram of the utility model.
Embodiment
In conjunction with Fig. 1, Fig. 2; The automatic detection alarm of a kind of blade of wind-driven generator crackle system of the utility model; Comprise plurality of detection device 1 and opertaing device 4; Said pick-up unit 1 is installed on the blade of wind-powered electricity generation unit 2, and this pick-up unit 1 is connected through the ZigBee communication with opertaing device 4, gives opertaing device 4 with the result transmission that detects; Said pick-up unit 1 comprises flush bonding processor nucleus module 12, some crack detection modules 13, humiture detection module 14, LED alarm module 15 and ZigBee wireless communication interface 16; Said crack detection module 13 is connected with flush bonding processor nucleus module 12; The blade status signal that detects is transferred to flush bonding processor nucleus module 12; Humiture detection module 14 is connected with flush bonding processor nucleus module 12; Detected temperature-humidity signal is transferred to flush bonding processor nucleus module 12, and LED alarm module 15 is connected with flush bonding processor nucleus module 12, under the control of flush bonding processor nucleus module 12, reports to the police; ZigBee wireless communication interface 16 is connected with flush bonding processor nucleus module 12, for it provides wireless communication interface.
Said crack detection module 13 comprises adhesive type resistance strain gage and uneven full-bridge circuit.Each pick-up unit 1 main crack detection function of accomplishing also has humiture simultaneously and detects and radio communication function.
The crack detection module is used for detecting in real time the state of each blade of wind-powered electricity generation machine; The humiture detection module is used to detect local humiture situation; The ZigBee wireless communication interface is used for the information transmission of each pick-up unit networking and equipment room; The GPRS interface is used for crackle and humiture testing result are reported administrative authority automatically, according to different places to use, also can select for use Ethernet interface to report testing result, saves system cost.Power devices can adopt the solar panel power supply, and pick-up unit is by timing wake-up, and all the other times are in sleep pattern, reduce power consumption as far as possible.
Some are prone to the position of crackle with bonding agent foil gauge to be sticked on blade surface during use, for example blade root surface etc.If foil gauge does not detect the crackle of blade, then system does not produce action; If confirm that detecting a certain blade has produced crackle, then this pick-up unit is controlled the corresponding alarm lamp flicker of blade automatically, the crackle situation occurred to indicate a certain blade.The humiture measuring ability is accomplished by Temperature Humidity Sensor, and it has higher temperature and humidity accuracy of detection.The result that above-mentioned detection obtains sends to opertaing device 4 through ZigBee wireless network transmissions mode.Opertaing device 4 is responsible for collecting pick-up unit 1 detected blade crack information and the humiture information in the certain area coverage, and these data are regularly reported administrative authority 5.The information of administrative authority 5 through obtaining just can be confirmed the blade cracks of each wind-powered electricity generation machine 2 and the humiture situation of locality.
Said crack detection module 13 is consistent with the quantity of blade, the corresponding crack detection module 13 of blade; A module can comprise some foil gauges, specifically is provided with as required.
Said flush bonding processor nucleus module 12 comprises flush bonding processor and is attached thereto power module, clock module, reseting module, the debugging interface module that connects respectively.The model of flush bonding processor is the SoC solution CC2530 of TI company in the said flush bonding processor nucleus module 12.Power module is that flush bonding processor provides working power; Clock module is that microcontroller provides clock signal; Reseting module is used for when flush bonding processor work is broken down, providing reset signal, debugging interface module to be used for application program is downloaded to flush bonding processor and the inner working condition of observation when flush bonding processor is worked.
In conjunction with Fig. 3; Opertaing device 4 comprises flush bonding processor core cell 17, ZigBee Wireless communication interface module 18, GPRS interface 19 and Ethernet interface 20; Said ZigBee Wireless communication interface module 18, GPRS interface 19 all are connected with flush bonding processor core cell 17 with Ethernet interface 20, for it provides communication interface.
In conjunction with Fig. 4, flush bonding processor core cell 17 comprises flush bonding processor and is attached thereto power module, clock module, reseting module, the debugging interface module that connects respectively.Flush bonding processor in the flush bonding processor core cell 17 is the LPC chip of NXP company.Power module is that flush bonding processor provides working power; Clock module is that flush bonding processor provides clock signal; Reseting module is used for when flush bonding processor work is broken down, providing reset signal, debugging interface module to be used for application program is downloaded to flush bonding processor and the inner working condition of observation when flush bonding processor is worked.
Above-mentioned flush bonding processor nucleus module 12 and flush bonding processor core cell 17 similar, difference is merely the model and the related peripheral circuit of flush bonding processor.
In conjunction with Fig. 5, a kind of blade of wind-driven generator crackle automatic testing method may further comprise the steps:
Step 2, LED alarm module 15 begin to report to the police;
Step 4, flush bonding processor nucleus module 12 are transferred to opertaing device 4 after blade status signal and temperature-humidity signal are gathered;
Step 5, opertaing device 4 are transferred to administrative authority 5 after the signal of plurality of detection device 1 is gathered.
Below in conjunction with embodiment, the utility model is described in further detail.
Referring to Fig. 1, the automatic detection alarm of wind electricity blade crackle system is made up of pick-up unit 1 and opertaing device 4.Each pick-up unit 1 is installed on the wind-powered electricity generation machine 2, detects blade state and humiture situation independently of one another.In addition, in wind field 3 scopes a plurality of opertaing devices 4 are installed.Pick-up unit 1 is formed the automatic detection alarm of blade crackle system with opertaing device 4 through the networking of ZigBee wireless mode, and opertaing device 4 reports administrative authority 5 through GPRS wireless data transmission mode or the wired mode of Ethernet with blade testing result and humiture information automatically.
In conjunction with Fig. 2-Fig. 4, the formation of pick-up unit comprises flush bonding processor nucleus module 12, crack detection module 13, humiture detection module 14, LED alarm module 15 and ZigBee wireless communication interface 16; The formation of opertaing device 4 comprises flush bonding processor core cell 17, ZigBee Wireless communication interface module 18, GPRS interface 19 and Ethernet interface 20.Wherein, The flush bonding processor nucleus module 12 of pick-up unit 1 is identical with the basic comprising of the flush bonding processor core cell 17 of opertaing device 4; Comprise flush bonding processor and be attached thereto the power module that connects, clock module, reseting module, debugging interface module etc. respectively, but these two kinds of concrete flush bonding processors of selecting for use of equipment are different.Crack detection module 13 is accomplished by adhesive type resistance strain gage and relevant conversion metering circuit; When blade surface produces microdeformation; Paste superincumbent foil gauge wiregrating and also deform thereupon, because the strain effect of metallic conductor changes the resistance of wiregrating.At this moment, export after converting changes in resistance into voltage transformation by the conversion metering circuit again.Metering circuit adopts unbalance bridge circuit to realize converting the resistance change of foil gauge into voltage variety.In order to make measuring bridge have higher sensitivity and measuring accuracy, and do not receive Influence of Temperature, adopted full-bridge circuit.Humiture detection module 14 is made up of the SHT11 digital hygro sensor and the related peripheral circuit of Sensirion company, has the higher detection precision.ZigBee Wireless communication interface module 18 hardware of the ZigBee wireless communication interface 16 of pick-up unit 1 and opertaing device 4 are identical, select the CC2530 of TI company for use.The LED alarm module 15 of pick-up unit 1 adopts the LED lamp to realize.The GPRS interface 19 of opertaing device 4 selects for use SIMCom company to aim at the GSM/GPRS module SIM900A of 2 frequencies of market, China's Mainland design, and Ethernet interface 20 is selected the W5100 of Wiznet company for use.The model that flush bonding processor is different according to different equipment choosings can be selected the LPC family chip of NXP company for use like the flush bonding processor in the opertaing device 4, and the flush bonding processor in the pick-up unit 1 is then selected enhancement mode integrated among the CC2530 51 single-chip microcomputers for use.
In conjunction with Fig. 1 and Fig. 5, the workflow of illustrative system.After pick-up unit 1 works on power, regularly detect the state of blade through crack detection module 13, promptly whether there is crackle to produce.If do not detect crackle, then LED alarm module 15 is failure to actuate, the alarm free signal; Produce if detected crackle, then control LED alarm module 15 and send alerting signal, play significant warning function by the certain frequency flicker.After having detected the state of blade, humiture detection module 14 detects the humiture situation around the blade.
Pick-up unit 1 sends testing result after regularly detecting blade state and humiture information through the ZigBee wireless network.After the multi-hop route of information via wireless network, the ZigBee Wireless communication interface module 18 of controlled device 4 is received.Opertaing device 4 is collected blade state and the humiture information that each pick-up unit 1 sends, and with the synthetic information frame that has the certain significance of these message block, regularly sends to administrative authority 5 through GPRS interface 19 or Ethernet interface 20.Relevant geographical locational blade state and humiture information can accurately be known in each address in the information frame that administrative authority 5 receives through judgement.
Claims (7)
1. the automatic detection alarm of blade of wind-driven generator crackle system; It is characterized in that; Comprise plurality of detection device [1] and opertaing device [4]; Said pick-up unit [1] is installed on the blade of wind-powered electricity generation unit [2], and this pick-up unit [1] is connected through the ZigBee communication with opertaing device [4], gives opertaing device [4] with the result transmission that detects; Said pick-up unit [1] comprises flush bonding processor nucleus module [12], some crack detection modules [13], humiture detection module [14], LED alarm module [15] and ZigBee wireless communication interface [16]; Said crack detection module [13] is connected with flush bonding processor nucleus module [12]; The blade status signal that detects is transferred to flush bonding processor nucleus module [12]; Humiture detection module [14] is connected with flush bonding processor nucleus module [12]; Detected temperature-humidity signal is transferred to flush bonding processor nucleus module [12], and LED alarm module [15] is connected with flush bonding processor nucleus module [12], under the control of flush bonding processor nucleus module [12], reports to the police; ZigBee wireless communication interface [16] is connected with flush bonding processor nucleus module [12], for it provides wireless communication interface.
2. the automatic detection alarm of blade of wind-driven generator crackle according to claim 1 system is characterized in that said crack detection module [13] comprises adhesive type resistance strain gage and uneven full-bridge circuit.
3. the automatic detection alarm of blade of wind-driven generator crackle according to claim 1 system; It is characterized in that; Opertaing device [4] comprises flush bonding processor core cell [17], ZigBee Wireless communication interface module [18], GPRS interface [19] and Ethernet interface [20]; Said ZigBee Wireless communication interface module [18], GPRS interface [19] and Ethernet interface [20] all are connected with flush bonding processor core cell [17], for it provides communication interface.
4. the automatic detection alarm of blade of wind-driven generator crackle according to claim 1 system; It is characterized in that said flush bonding processor nucleus module [12] comprises flush bonding processor and is attached thereto power module, clock module, reseting module, the debugging interface module that connects respectively.
5. the automatic detection alarm of blade of wind-driven generator crackle according to claim 4 system is characterized in that, the model of flush bonding processor is the CC2530 of TI company in the said flush bonding processor nucleus module [12].
6. the automatic detection alarm of blade of wind-driven generator crackle according to claim 3 system; It is characterized in that flush bonding processor core cell [17] comprises flush bonding processor and is attached thereto power module, clock module, reseting module, the debugging interface module that connects respectively.
7. the automatic detection alarm of blade of wind-driven generator crackle according to claim 6 system is characterized in that the flush bonding processor in the flush bonding processor core cell [17] is the LPC chip of NXP company.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201479471U CN202533424U (en) | 2012-04-10 | 2012-04-10 | Automatic detection warning system for blade cracks of wind-driven generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201479471U CN202533424U (en) | 2012-04-10 | 2012-04-10 | Automatic detection warning system for blade cracks of wind-driven generator |
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| CN202533424U true CN202533424U (en) | 2012-11-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621281A (en) * | 2012-04-10 | 2012-08-01 | 南京理工大学 | Automatic crack detection and alarm system and method for vane of wind driven generator |
| CN103543253A (en) * | 2013-10-21 | 2014-01-29 | 中国航空工业集团公司北京长城航空测控技术研究所 | Networking communication method of on-line wind turbine generator gearbox oil liquid monitoring system |
-
2012
- 2012-04-10 CN CN2012201479471U patent/CN202533424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621281A (en) * | 2012-04-10 | 2012-08-01 | 南京理工大学 | Automatic crack detection and alarm system and method for vane of wind driven generator |
| CN103543253A (en) * | 2013-10-21 | 2014-01-29 | 中国航空工业集团公司北京长城航空测控技术研究所 | Networking communication method of on-line wind turbine generator gearbox oil liquid monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140410 |