CN103852723A - Wind driven generator state monitoring device and method - Google Patents
Wind driven generator state monitoring device and method Download PDFInfo
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- CN103852723A CN103852723A CN201410123829.0A CN201410123829A CN103852723A CN 103852723 A CN103852723 A CN 103852723A CN 201410123829 A CN201410123829 A CN 201410123829A CN 103852723 A CN103852723 A CN 103852723A
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Abstract
The invention discloses a wind driven generator state monitoring device and method. The device comprises an intelligent judgment module, an acquisition module, a power supply, a voltage switching box, a current conditioning box, a voltage access point, a current inductor and a vibration sensor, wherein the acquisition module comprises an electrical acquisition module and a vibration acquisition module; an input end of the voltage access point is connected with a generator stator output line, and an output end of the voltage access point is connected with an input end of the voltage switching box; an input end of the current inductor is sleeved to the generator stator output line, and an output end of the current inductor is connected with an input end of the current conditioning box; an input end of the vibration sensor is directly adsorbed to a bearing block of the wind driven generator through a magnetic seat, and an output end of the vibration sensor is connected with the input end of the vibration acquisition module; the output ends of the voltage switching box and the current conditioning box are connected with an input end of the electrical acquisition module; an output end of the acquisition module is connected with an input end of the intelligent judgment module; and an output end of the intelligent judgment module is connected with a server through a network cable. The invention also provides a monitoring method. Therefore, the operating state of the fan can be intelligently monitored, and an abnormal state of the fan is accurately identified.
Description
Technical field
The present invention relates to aerogenerator Condition Monitoring Technology field, be specifically related to a kind of aerogenerator state monitoring apparatus and monitoring method.
Background technology
On most blower fan, use monitoring device majority to concentrate on the monitoring to single characteristics quantity (as vibration, temperature etc.), mainly monitor output electric weight, output power etc. for generator, the device that also the many reference amounts signal such as the electric signal to aerogenerator (electric current, voltage), vibration signal is not monitored simultaneously at present.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of aerogenerator state monitoring apparatus and monitoring method, by mature signal processing method, utilize existing electric current on market, vibration, voltage sensor to monitor the state of aerogenerator, whether diagnosis blowing machine state breaks down, optimize fan operation management thereby realize, improve service life of fan, improve to a greater degree the object of wind field economic benefit.
For reaching above object, the present invention adopts following technical scheme:
A kind of aerogenerator state monitoring apparatus, comprise intelligent decision module 1, acquisition module 2, power supply 3, voltage interconnecting device 4, current regulating box 5, voltage access device 6, current inductor 7 and vibration transducer 8, described acquisition module 2 comprises electric acquisition module 2-1 and vibration acquisition module 2-2; The input end of described voltage access device 6 connects generator unit stator output line A, and output terminal connects the input end of voltage interconnecting device 4, and it is upper that the input end of described current inductor 7 is socketed in generator unit stator output line A, and output terminal connects the input end of current regulating box 5; The input end of described vibration transducer 8 is directly adsorbed on by magnetic receiver on the bearing seat C of aerogenerator B, output terminal connects the input end of vibration acquisition module 2-2, described voltage interconnecting device 4 is connected the input end of electric acquisition module 2-1 with the output terminal of current regulating box 5, the output terminal of described acquisition module 2 connects the input end of intelligent decision module 1, and the output terminal of intelligent decision module 1 is connected with server 0 by netting twine; Described intelligent decision module 1 and acquisition module 2 are by power supply 3 powered operation.
Described intelligent decision module 1, acquisition module 2, power supply 3 are fixedly installed in main monitor box 9, and described main monitor box 9, voltage interconnecting device 4 and current regulating box 5 are arranged in engine rooms of wind power generators.
Described server 0 is positioned at wind field Surveillance center.
The detection method of aerogenerator state monitoring apparatus described above, described voltage access device 6, current inductor 7 and vibration transducer 8 gather original voltage from aerogenerator respectively, electric current and vibration signal, and this signal is exported to respectively to voltage interconnecting device 4, current regulating box 5 and vibration acquisition module 2-2, the High AC voltage signal collecting is transformed into the d. c. voltage signal within the scope of positive and negative 10V by described voltage interconnecting device 4, the d. c. voltage signal within the scope of the positive and negative 80mv of current sensor output is transformed into the d. c. voltage signal within the scope of positive and negative 10V by current regulating box 5, signal after voltage interconnecting device 4 and 5 conversions of current regulating box is obtained by electric acquisition module 2-1, electric acquisition module 2-1, vibration acquisition module 2-2 carries out filtering and noise reduction process to the signal obtaining, the signal after filtering and noise reduction process is sent to intelligent decision module 1 by acquisition module 2 subsequently, last intelligent decision module 1 is further processed judgement to the signal of input, then send corresponding numerical information after processing judgement to server 0, server 0 provides remote data to download for having the user of associated authorization.
Described intelligent decision module 1 is further processed judgement to the signal of input, is specially: intelligent decision module 1 is extracted amplitude and the effective value of vibration signal, extracts the effective value of voltage, current signal; The threshold value stipulating in the amplitude of vibration signal and effective value and intelligent decision module is compared, if the amplitude of vibration signal or effective value exceed the threshold range of regulation, judge that generator breaks down.The threshold value stipulating in the effective value of voltage, current signal and intelligent decision module is compared, if the effective value of voltage, current signal exceeds the threshold range of regulation, judge that generator breaks down.
Compared to the prior art, tool has the following advantages in the present invention:
1) the present invention can gather vibration signal, voltage signal, current signal simultaneously, and its three's result is comprehensively analyzed, the equipment that made up is in the past from the deficiency of single parameter monitoring fan condition, reduce the fault analysis error of only utilizing a certain signal to cause, the promptness and the accuracy that have improved fan condition monitoring, also reduced fan condition monitoring system construction cost simultaneously.
2) gather voltage signal and adopt direct extraction voltage mode, more improved the degree of accuracy that voltage obtains.
3) adopt the mode of ring set to obtain current signal, method is simple to operation.
In a word, the present invention assesses by Multivariate analysis, monitors aerogenerator state multi-facetedly, can find in time that blower fan is abnormal, meanwhile, many reference amounts are analyzed simultaneously, by the mutual comparison between parameter, looking up the fault position more exactly, analyzing failure cause.In addition, the aerogenerator condition monitoring device of integrated many reference amounts has also effectively reduced the redundancy of fan condition system equipment, has reduced wind field and purchase the cost of redundance unit, contributes to improve wind field benefit.
Accompanying drawing explanation
Accompanying drawing is apparatus of the present invention structural representation.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in drawings, a kind of aerogenerator state monitoring apparatus of the present invention, comprise intelligent decision module 1, acquisition module 2, power supply 3, voltage interconnecting device 4, current regulating box 5, voltage access device 6, current inductor 7 and vibration transducer 8, described acquisition module 2 comprises electric acquisition module 2-1 and vibration acquisition module 2-2, the input end of described voltage access device 6 connects generator unit stator output line, output terminal connects the input end of voltage interconnecting device 4, the input end of described current inductor 7 is socketed on generator stator-rotator output line, output terminal connects the input end of current regulating box 5, the input end of described vibration transducer 8 is directly adsorbed on wind driven generator bearing seat by magnetic receiver, output terminal connects the input end of vibration acquisition module 2-2, described voltage interconnecting device 4 is connected the input end of electric acquisition module 2-1 with the output terminal of current regulating box 5, the input end of described acquisition module 2 connects the input end of intelligent decision module 1, the output terminal of intelligent decision module 1 is connected with server 0 by netting twine, described intelligent decision module 1 and acquisition module 2 are by power supply 3 powered operation.
Described voltage interconnecting device 4, current regulating box 5 and main monitor box 9 are arranged in engine rooms of wind power generators, and intelligent decision module 1, acquisition module 2 and power supply 3 are integrated to be fixed in main monitor box 9.Main monitor box 9 plays the protective effect such as waterproof, vibrationproof to intelligent decision module 1, acquisition module 2, power supply 3.Described acquisition module 2 includes capture card and corresponding hardware, is responsible for receiving the related data that various kinds of sensors collects, and data are carried out to the processing such as analog to digital conversion, simple filtering, noise reduction, and sends data after treatment to intelligent decision module 1.Intelligent decision module 1 is responsible for being further processed transmitted the signal coming by acquisition module 2.Server 0 is positioned at wind field Surveillance center, and main being responsible for receives and store and adopt the data of being uploaded by signal processor, and can provide remote data download function for having the user of associated authorization.
The present invention also provides the monitoring method of above-mentioned aerogenerator state monitoring apparatus, be specially: described voltage access device 6, current inductor 7 and vibration transducer 8 gather original voltage from aerogenerator respectively, electric current and vibration signal, and this signal is exported to respectively to voltage interconnecting device 4, current regulating box 5 and vibration acquisition module 2-2, the High AC voltage signal collecting is transformed into the d. c. voltage signal within the scope of positive and negative 10V by described voltage interconnecting device 4, the d. c. voltage signal within the scope of the positive and negative 80mv of current sensor output is transformed into the d. c. voltage signal within the scope of positive and negative 10V by current regulating box 5, signal after voltage interconnecting device 4 and 5 conversions of current regulating box is obtained by electric acquisition module 2-1, electric acquisition module 2-1, vibration acquisition module 2-2 carries out filtering and noise reduction process to the signal obtaining, the signal after filtering and noise reduction process is sent to intelligent decision module 1 by acquisition module 2 subsequently, last intelligent decision module 1 is extracted amplitude and the effective value of vibration signal, extract voltage, the effective value of current signal, the threshold value stipulating in the amplitude of vibration signal and effective value and intelligent decision module is compared, if the amplitude of vibration signal or effective value exceed the threshold range of regulation,
Judge that generator breaks down.The threshold value stipulating in the effective value of voltage, current signal and intelligent decision module is compared, if the effective value of voltage, current signal exceeds the threshold range of regulation, judge that generator breaks down.Then send corresponding numerical information after processing judgement to server 0, server 0 provides remote data to download for having the user of associated authorization.
Claims (5)
1. an aerogenerator state monitoring apparatus, it is characterized in that: comprise intelligent decision module (1), acquisition module (2), power supply (3), voltage interconnecting device (4), current regulating box (5), voltage access device (6), current inductor (7) and vibration transducer (8), described acquisition module (2) comprises electric acquisition module (2-1) and vibration acquisition module (2-2); The input end of described voltage access device (6) connects generator unit stator output line (A), output terminal connects the input end of voltage interconnecting device (4), it is upper that the input end of described current inductor (7) is socketed in generator unit stator output line (A), and output terminal connects the input end of current regulating box (5); The input end of described vibration transducer (8) is directly adsorbed on by magnetic receiver on the bearing seat (C) of aerogenerator (B), output terminal connects the input end of vibration acquisition module (2-2), described voltage interconnecting device (4) is connected the input end of electric acquisition module (2-1) with the output terminal of current regulating box (5), the output terminal of described acquisition module (2) connects the input end of intelligent decision module (1), and the output terminal of intelligent decision module (1) is connected by the same server of netting twine (0); Described intelligent decision module (1) and acquisition module (2) are by power supply (3) powered operation.
2. a kind of aerogenerator state monitoring apparatus according to claim 1, it is characterized in that: described intelligent decision module (1), acquisition module (2), power supply (3) are fixedly installed in main monitor box (9), described main monitor box (9), voltage interconnecting device (4) and current regulating box (5) are arranged in engine rooms of wind power generators.
3. a kind of aerogenerator state monitoring apparatus according to claim 1, is characterized in that: described server (0) is positioned at wind field Surveillance center.
4. the detection method of the aerogenerator state monitoring apparatus described in claims 1 to 3 any one, it is characterized in that: described voltage access device (6), current inductor (7) and vibration transducer (8) gather original voltage from aerogenerator respectively, electric current and vibration signal, and this signal is exported to respectively to voltage interconnecting device (4), current regulating box (5) and vibration acquisition module (2-2), the High AC voltage signal collecting is transformed into the d. c. voltage signal within the scope of positive and negative 10V by described voltage interconnecting device (4), the d. c. voltage signal within the scope of the positive and negative 80mv of current sensor output is transformed into the d. c. voltage signal within the scope of positive and negative 10V by current regulating box (5), signal after voltage interconnecting device (4) and current regulating box (5) conversion is obtained by electric acquisition module (2-1), electric acquisition module (2-1), vibration acquisition module (2-2) is carried out filtering and noise reduction process to the signal obtaining, the signal after filtering and noise reduction process is sent to intelligent decision module (1) by acquisition module (2) subsequently, last intelligent decision module (1) is further processed judgement to the signal of input, then send corresponding numerical information after processing judgement to server (0), server (0) provides remote data to download for having the user of associated authorization.
5. detection method according to claim 4, it is characterized in that: described intelligent decision module (1) is further processed judgement to the signal of input, be specially: intelligent decision module (1) is extracted amplitude and the effective value of vibration signal, extract the effective value of voltage, current signal; The threshold value stipulating in the amplitude of vibration signal and effective value and intelligent decision module is compared, if the amplitude of vibration signal or effective value exceed the threshold range of regulation, judge that generator breaks down.The threshold value stipulating in the effective value of voltage, current signal and intelligent decision module is compared, if the effective value of voltage, current signal exceeds the threshold range of regulation, judge that generator breaks down.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106769041A (en) * | 2016-12-23 | 2017-05-31 | 安徽大学 | A kind of permanent magnet synchronous electric machine bearing on-line fault diagnosis device and method under variable speed operating mode |
| CN106849517A (en) * | 2017-04-20 | 2017-06-13 | 哈尔滨理工大学 | Intelligent electric machine system |
| CN108680856A (en) * | 2018-05-24 | 2018-10-19 | 龙逸电科（天津）技术有限公司 | A kind of power distribution network generating set fault detection system |
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| CN106769041A (en) * | 2016-12-23 | 2017-05-31 | 安徽大学 | A kind of permanent magnet synchronous electric machine bearing on-line fault diagnosis device and method under variable speed operating mode |
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Application publication date: 20140611 |