CN101705908B - Wind power generator set as well as state monitoring system thereof and method - Google Patents
Wind power generator set as well as state monitoring system thereof and method Download PDFInfo
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- CN101705908B CN101705908B CN2009102507185A CN200910250718A CN101705908B CN 101705908 B CN101705908 B CN 101705908B CN 2009102507185 A CN2009102507185 A CN 2009102507185A CN 200910250718 A CN200910250718 A CN 200910250718A CN 101705908 B CN101705908 B CN 101705908B
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Abstract
The invention discloses a state monitoring system for a wind power generator set, comprising a detection device (1), a control device (2) and an output device (3). The detection device (1) is used for detecting the vibration of the wind power generator set to obtain a detecting signal; the control device (2) is used for determining a stage of a life cycle where the wind power generator set is located, selecting pre-stored standard and comparing the pre-stored standard with the detecting signal to judge the state of the wind power generator set; and the output device (3) is used for outputting a signal of the state of the wind power generator set according to the judged result of the control device (2). The state monitoring system can monitor the wind power generator in the round and prolong the service life of the wind power generator. The invention also discloses the wind power generator set including the state monitoring system and a state monitoring method.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of condition monitoring system that is used for wind power generating set.In addition, the invention still further relates to a kind of wind power generating set and a kind of state monitoring method that is used for wind power generating set that comprises above-mentioned condition monitoring system.
Background technique
Along with the fast development of China's economic construction, electric energy is increasing to the influence of economic construction and people life, and wind-power electricity generation also more and more is subject to people's attention as a kind of in the multiple generation mode.
Wind-power electricity generation is exactly a kind of generation mode that the kinetic energy of keeping watch is converted into electric energy.The needed device of wind-power electricity generation is called wind power generating set, and wind power generating set generally comprises tower tube, wind wheel and wind-driven generator three parts.
In the prior art, in order to prevent the generation of major accident, for the needs of safety control, most wind-driven generator all is equipped with the system with certain status monitoring and malfunction alarm and response function simultaneously.Such as: voltage, electric current and the power detecting system etc. of cabin vibration detecting system, oily temperature detection system, generator; In various systems; by sensor oscillating signal, temperature signal and voltage, electric current and power signal; and signal transferred to master control system; master control system is made fault state according to preset value and is judged; control then that wind power generating set is shut down or emergency shutdown, with prevent that wind power generating set from exceeding the speed limit, safety problems such as overload and resonance.
Yet; this monitor control system can only detect short-term, interim, great fault state; each critical piece of protection wind-driven generator does not take place badly damaged; be difficult to wind-driven generator is comprehensively monitored and protected; promptly be in the fault that is produced under the non-optimal operational condition for a long time for wind-driven generator; general control system can't be monitored, thereby probably quickens the damage of wind power generating set, shortens its working life.
Therefore, how wind power generating set is comprehensively monitored, so that get rid of the fault of wind power generating set in time, be the present technical issues that need to address of those skilled in the art the working life that prolongs wind power generating set.
Summary of the invention
The condition monitoring system that the purpose of this invention is to provide a kind of wind power generating set, this condition monitoring system can comprehensively be monitored wind-driven generator, thereby prolongs the working life of wind power generating set.Another object of the present invention provides a kind of wind power generating set and a kind of state monitoring method that is used for wind power generating set that comprises above-mentioned condition monitoring system.
For solving the problems of the technologies described above, the invention provides a kind of condition monitoring system, be used for wind power generating set, comprising:
Detection device is used to detect the vibration of described wind power generating set, obtains testing signal;
Control gear is used for determining stage of the residing life cycle of described wind power generating set, selects the standard that prestores, and compares with described testing signal, judges the state of described wind power generating set;
Output unit is used for the judged result according to described control gear, exports the state signal of described wind power generating set.
Preferably, also comprise input device,
Described input device is used to import the instruction of the residing life cycle phase of the described wind power generating set of expression;
Described control gear is determined the residing life cycle phase of described wind power generating set according to the instruction of described input device input.
Preferably, also comprise speed detector and controlling device;
Described speed detector is used to detect the actual speed of the Transmitted chains of described wind power generating set;
Described control gear is according to tach signal and predetermined strategy that described speed detector obtains, obtains the actual speed of input shaft of the generator of described wind power generating set; Also the reference rotation velocity in actual speed and the described standard that prestores is compared, and judge the input shaft rotational speed state of described generator;
The input shaft rotational speed that described controlling device is regulated described generator according to the judged result of described control gear, the input shaft that makes described generator in preset time length with described reference rotation velocity stable operation.
Preferably, also comprise signal pickup assembly, signal processing apparatus and signal storage device,
Described signal pickup assembly is according to the testing signal of the described detection device of command reception of described control gear, and the testing signal that receives is transferred to described signal processing apparatus;
Described signal processing apparatus receives the testing signal that described signal pickup assembly is gathered, and described testing signal is carried out time domain transfer to described control gear after the conversion of frequency domain;
Described signal storage device is used to store the testing signal of described signal pickup assembly collection and the testing signal of the described signal processing means processes of process;
The testing signal that described control gear is also stored according to signal storage device obtains the described standard that prestores or forms the state variation tendency of described wind power generating set.
Preferably, also comprise the theft-resistant link chain device;
When described control gear is in the later stage of life cycle in definite described wind power generating set, can selectively trigger described theft-resistant link chain device;
When described control gear judged that state variation tendency that described testing signal exceeds described standard that prestores or described wind power generating set is undergone mutation, described control gear triggered described theft-resistant link chain device, and described wind power generating set is shut down.
For addressing the above problem, the present invention also discloses a kind of wind power generating set, comprises as above-mentioned each described condition monitoring system.
For addressing the above problem, the present invention also discloses a kind of state monitoring method, is used for wind power generating set, may further comprise the steps:
1) vibration of the described wind power generating set of detection obtains testing signal;
2) determine the residing life cycle phase of described wind power generating set, select the standard prestore, and compare, judge the state of described wind power generating set with described testing signal.
Preferably, in step 2) in, by the instruction of the input described wind power generating set of expression life cycle phase of living in, determine the residing life cycle phase of described wind power generating set.
Preferably, before the step 1), further comprising the steps of;
11) actual speed of the Transmitted chains of the described wind power generating set of detection obtains tach signal;
12) according to described tach signal and predetermined strategy, obtain the actual speed of the input shaft (5) of the generator of described wind power generating set, and compare with reference rotation velocity in the described standard that prestores, judge the rotating speed state of the input shaft (5) of described generator;
13) regulate the rotating speed of the input shaft (5) of described generator according to judged result, the input shaft (5) that makes described generator in preset time length with described reference rotation velocity stable operation.
Preferably, in step 1) and step 2) between, further comprising the steps of:
121) be received under the predetermined generator input shaft rotating speed, the described testing signal in the scheduled time length carries out the conversion of time domain to frequency domain with described testing signal, and stores described testing signal.
Preferably, in step 2) in, when judging that state variation tendency that described testing signal exceeds described standard that prestores or described wind power generating set is undergone mutation, described wind power generating set is shut down.
The condition monitoring system that is used for wind power generating set provided by the present invention comprises: detection device, be used to detect the vibration of wind power generating set, and obtain testing signal; Control gear is used for determining each stage of the residing life cycle of wind power generating set, selects the standard that prestores, and compares with testing signal, judges the state of wind power generating set; And output unit, be used for judged result, the state signal of output wind power generating set according to control gear.Detection device detects the vibrational state at the main vibration position of wind power generating set, obtain testing signal, and transmit it to control gear, control gear is determined the stage of the residing life cycle of wind power generating set, the standard that selection prestores, and compare with testing signal, judge the state of wind power generating set, and export by output unit.Because standard is to change along with the abrasion condition of the residing different phase of wind power generating set is continuous, so can accurately reflect this stage wind power generating set normal working, and control gear can be selected different standards according to the residing life cycle stage of wind power generating set, thereby, further improved the accuracy of status monitoring, improved control of quality, like this, the staff just can understand the working state of wind power generating set according to the output quantity of output unit, in time the failed equipment of wind power generating set is keeped in repair, in order to avoid the working state of wind power generating set further worsens, thereby prolonged the operating life of wind power generating set.
In a kind of preferred implementation, condition monitoring system provided by the present invention also comprises speed detector and controlling device, be used to detect the actual speed of the Transmitted chains of described wind power generating set, and tach signal transferred to control gear, control gear is according to tach signal and predetermined strategy, obtain the actual speed of input shaft of the generator of wind power generating set, also actual speed and reference rotation velocity in the standard that prestores are compared, and the input shaft rotational speed state of judgement generator, controlling device is according to the input shaft rotational speed of the judged result regulator generator of control gear, the input shaft that makes generator in preset time length with reference rotation velocity stable operation.Be subjected to the influence of standard, control gear need obtain the testing signal of input shaft constant operation scheduled time length under the desired speed value of generator, just can make relatively and judging, speed detector is to the adjusting to the input shaft rotational speed of generator of the detection of generator input shaft rotating speed and controlling device, make the generator input shaft with predetermined rotating speed stable operation in preset time length, for detection device provides assurance in the smooth monitoring that wind power generating set is in each stage, the accuracy of detection and the reliability of monitoring result have been improved.
In another kind of preferred implementation, condition monitoring system provided by the present invention also comprises the theft-resistant link chain device, when control gear is in the later stage of life cycle in definite wind power generating set, can selectively trigger the theft-resistant link chain device; When control gear judges that state variation tendency that testing signal exceeds standard or wind power generating set is undergone mutation, trigger the theft-resistant link chain device, wind power generating set is shut down.Like this, the theft-resistant link chain device has guaranteed the Security of wind power generating set when its operation in service life later stage, has avoided the generation of dangerous situation, has prevented the generation of major accident effectively.
The beneficial effect of wind power generating set provided by the present invention and state monitoring method is all similar with the beneficial effect of condition monitoring system, does not repeat them here.
Description of drawings
The structural representation of the condition monitoring system that is used for wind power generating set that Fig. 1 is provided for a kind of embodiment of the present invention;
The structural representation of the condition monitoring system that is used for wind power generating set that Fig. 2 is provided for the another kind of embodiment of the present invention;
Fig. 3 is the schematic flow sheet of first kind of state monitoring method that embodiment provided of the present invention;
Fig. 4 is the schematic flow sheet of second kind of state monitoring method that embodiment provided of the present invention;
The schematic flow sheet of the state monitoring method that Fig. 5 is provided for the third embodiment of the present invention.
Embodiment
Core of the present invention provides a kind of condition monitoring system of wind power generating set, and this condition monitoring system can comprehensively be monitored wind-driven generator, thereby prolongs the working life of wind power generating set.Another core of the present invention provides a kind of wind power generating set and a kind of state monitoring method that is used for wind power generating set that comprises above-mentioned condition monitoring system.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, the structural representation of the condition monitoring system that is used for wind power generating set that Fig. 1 is provided for a kind of embodiment of the present invention.
In a kind of embodiment, the condition monitoring system that is used for wind power generating set provided by the present invention comprises: detection device 1, be used to detect the vibration of wind power generating set, and obtain testing signal; Control gear 2 is used for determining each stage of the residing life cycle of wind power generating set, selects the standard that prestores, and compares with testing signal, judges the state of wind power generating set; Output unit 3 is used for the judged result according to control gear 2, the state signal of output wind power generating set.Particularly, the standard that prestores of this paper constantly changes according to the residing different phase of wind power generating set, to satisfy the monitoring of different phase for wind power generating set.
In the working procedure, control gear 2 is at first selected suitable standard according to the residing life cycle stage of wind power generating set, meanwhile, detection device 1 constantly detects the oscillating signal of wind power generating set, and other mainly can reflect the signal of the working state of wind power generating set, and transmits it to control gear 2, and control gear 2 compares testing signal and standard, and then draw the working state of wind power generating set, and by output unit 3 outputs.Like this, the staff just can draw the working state of wind power generating set according to the output quantity of output unit 3, thereby in time the trouble location of wind power generating set is safeguarded.
Because the standard of the control gear 2 of condition monitoring system provided by the present invention is to change along with the abrasion condition of the residing different phase of wind power generating set is continuous, can accurate response should stage wind power generating set normal working, simultaneously, control gear 2 can be selected corresponding standard according to the residing life cycle stage of wind power generating set, thereby improved the accuracy of wind power generating set status monitoring, improved control of quality, the staff just can understand the working state of wind power generating set according to output quantity, in time the failed equipment of wind power generating set is keeped in repair, in order to avoid the working state of wind power generating set further worsens, influence its operating life.
Certainly detection device 1 can also detect the signals such as oil temperature, voltage and power of wind power generating set except detecting the vibration of wind-driven generator key position, is not limited to only detect oscillating signal.
Please refer to Fig. 2, the structural representation of the condition monitoring system that is used for wind power generating set that Fig. 2 is provided for the another kind of embodiment of the present invention.
Control gear 2 is selected suitable standard for convenience, condition monitoring system provided by the present invention can also comprise input device 0, be used to import the instruction in the stage of representing the residing life cycle of wind power generating set, control gear 2 is determined the stage of the residing life cycle of wind power generating set according to the instruction of input device 0 input.Particularly, the device of the residing life cycle stage of control wind power generating set can also be timing unit, and control gear 2 is determined its residing life cycle phase according to the operating time of wind power generating set; Certainly, can also use other method, as long as can realize functional requirement, this paper does not limit this.
In another kind of embodiment, condition monitoring system provided by the present invention can also comprise speed detector 11 and controlling device 4, be used to detect the actual speed of the Transmitted chains of wind power generating set, and tach signal transferred to control gear 2, control gear 2 is according to tach signal and predetermined strategy, obtain the actual speed of input shaft 5 of the generator of wind power generating set, also actual speed and reference rotation velocity in the standard that prestores are compared, and the rotating speed state of the input shaft 5 of judgement generator, controlling device 4 is according to the rotating speed of the input shaft 5 of the judged result regulator generator of control gear 2, the input shaft 5 that makes generator in preset time length with reference rotation velocity stable operation.Speed detector 11 can be specially speed probe.
Because existing standard is the signal under a series of generator input shaft 5 rotating speeds, influenced by it, control gear 2 need obtain input shaft 5 constant operation testing signal under a certain tachometer value of generator, just can make relatively and judging, speed detector 11 is directly or indirectly to the adjusting of the rotating speed of the input shaft 5 of the detection of input shaft 5 rotating speeds of generator and 4 pairs of generators of controlling device, for the monitoring of detection device 1 when wind power generating set is in each stage provides assurance, thereby guaranteed the accuracy that detects, improved the reliability of monitoring result; On the other hand, make input shaft 5 constant operation reasonable time length under this rotating speed of generator, can obtain checkout value more exactly, thereby improve the reliability of monitoring result further.
Simultaneously, according to the residing different phase of wind power generating set, control gear 2 can also be controlled corresponding controlling device 4, thus the input shaft of regulator generator 5 in preset time length with reference rotation velocity stable operation.When wind power generating set is in debugging on testbed during the stage, the power plant of control gear 2 control test stands, and then the input shaft 5 that guarantees generator is with the stable operation in the length at the fixed time of predetermined rotating speed; When wind power generating set is in other stage, control gear 2 sends instruction to the master control system of wind power generating set, the input shaft 5 that master control system makes generator is with the stable operation in the length at the fixed time of predetermined rotating speed, and this target specifically can be controlled the electromagnetic torque of generator and the angle of inclination of wind wheel blade is that pitch angle is realized by master control system.Certainly, other controlling method also is fine, and this paper does not limit this.
In a kind of embodiment, condition monitoring system provided by the present invention can also comprise signal pickup assembly 9, signal pickup assembly 9 is according to the testing signal of the command reception detection device 1 of control gear 2, promptly under the control of control gear 2, receive under the predetermined generator input shaft rotating speed and the testing signal in the scheduled time length, and transfer to control gear 2.When input shaft 5 that control gear 2 regulating and controlling devices 4 make generator with predetermined rotating speed at the fixed time in the length during stable operation, the testing signal of control gear 2 control signal collecting devices 9 collecting and detecting devices 1, and then transmit it to control gear 2.Signal pickup assembly 9 is only gathered the testing signal under predetermined generator input shaft 5 rotating speeds in the scheduled time length.
Certainly, utilize signal pickup assembly 9 acquisition testing signals after, can also carry out preliminary treatment and demonstration to it, thereby can observe the state of detection device 1 constantly, detected position is detected under normal state to guarantee detection device 1.
The testing signal and the standard of being gathered for convenience of 2 pairs of signal pickup assemblies 9 of control gear compare, all right signalization treatment device 6, signal processing apparatus 6 is the testing signal gathered of received signal collecting device 9 at first, it is carried out the conversion of time domain to frequency domain, and transmit it to control gear 2, realize testing signal and standard are compared.Wherein, testing signal being carried out time domain can realize by Fourier transform to the conversion of frequency domain.Certainly, in such cases, the testing signal that signal pickup assembly 9 is gathered need not to be passed to control gear 2, only needs to transfer to control gear 2 through the testing signal that signal processing apparatus 6 was handled and gets final product.
Signal processing apparatus 6 can also carry out processing such as Shelving, wavelet transformation, high frequency, intermediate frequency and low-frequency analysis to testing signal, to get rid of noise, extracts more pure testing signal.
In order to make all standards of control gear 2 energy envelope life cycle different phases, perhaps form the working state variation tendency of wind power generating set in its life cycle, condition monitoring system provided by the present invention can also comprise signal storage device 7, is used for testing signal that storage signal collecting device 9 gathered and the testing signal of handling through signal processing apparatus 6.
In another kind of embodiment, condition monitoring system provided by the present invention can also comprise theft-resistant link chain device 8, when control gear 2 is in the later stage of life cycle in definite wind power generating set, can selectively trigger theft-resistant link chain device 8; When control gear 2 judges that state variation tendency that testing signals exceed standard or wind power generating set is undergone mutation, trigger theft-resistant link chain device 8, wind power generating set is shut down.
Because wind power generating set is in service life during the later stage, failure rate increases, the fault order of severity also increases, the setting of theft-resistant link chain device 8, the generation of peril in the time of can avoiding significant trouble to occur has effectively improved wind power generating set and has been in the Security of service life later stage when using.On the other hand; control gear 2 judges whether the state variation tendency whether testing signal exceeds standard or wind power generating set undergos mutation; just; control gear 2 is not only judged the variation of wind power generating set current state; and the variation of the state variation tendency of detection wind power generating set; in case have one to undergo mutation in the two; control gear 2 will trigger theft-resistant link chain device 8; wind power generating set is shut down; thereby avoid the generation of major accident effectively, improve the Security that wind power generating set is in the operation of service life later stage.
Please refer to Fig. 3, Fig. 3 is the schematic flow sheet of first kind of state monitoring method that embodiment provided of the present invention.
In a kind of embodiment, the state monitoring method that is used for wind power generating set provided by the present invention can may further comprise the steps:
Step S1: detect the vibration of wind power generating set, obtain testing signal.
Detect the vibration at wind driven generation set main shaft bearing, gearbox input shaft, output shaft and generator input shaft place, and the vibration of tower and tower tube bottom at the bottom of the cabin.
Certainly, can also detect the signals such as oil temperature, voltage and power of wind power generating set, be not limited to above-mentioned oscillating signal.
Step S2: determine the residing life cycle phase of wind power generating set, select the standard prestore, and compare, judge the state of wind power generating set with described testing signal.
After having determined the stage of the residing life cycle of wind power generating set, select suitable standard, compare with testing signal, thereby judge the working state of wind power generating set, like this, the staff just can draw the state of wind power generating set according to output quantity, thereby in time the trouble location of wind power generating set is keeped in repair.
Particularly, can be by the instruction of the input described wind power generating set of expression life cycle phase of living in, determine the residing life cycle phase of described wind power generating set, certainly, can also determine its residing life cycle phase according to the operating time of wind power generating set; Its concrete mode this paper does not limit.
As can be seen, state monitoring method provided by the present invention can be selected different standards according to the abrasion condition of the residing different phase of wind power generating set, this standard can really reflect this stage wind power generating set normal working, raising is to the accuracy of wind power generating set status monitoring, improve control of quality, the staff can understand the working state of wind power generating set in time, thereby the failed equipment to wind power generating set is keeped in repair, avoid the working state of wind power generating set further to worsen effectively, influence its operating life.
Please refer to Fig. 4, Fig. 4 is the schematic flow sheet of second kind of state monitoring method that embodiment provided of the present invention.
In another kind of embodiment, state monitoring method provided by the present invention, before step S1, further comprising the steps of:
Step S11: detect the actual speed of the Transmitted chains of wind power generating set, obtain tach signal.
Actual speed by any rotating shaft or driving gear in the detection Transmitted chains obtains tach signal.
Step S12: according to tach signal and predetermined strategy, obtain the actual speed of input shaft 5 of the generator of wind power generating set, and compare, judge the rotating speed state of the input shaft 5 of generator with reference rotation velocity in the standard that prestores.
Step S13: according to the rotating speed of the input shaft 5 of judged result regulator generator, the input shaft 5 that makes generator in preset time length with reference rotation velocity stable operation.
Because existing standard is the value under input shaft 5 a series of rotating speeds of generator, influenced by it, need obtain input shaft 5 constant operation testing signal under a certain tachometer value of generator, just can make relatively and judging, above-mentioned steps, the detection of the oscillating signal when being in each stage in wind power generating set etc. provides assurance, thereby has guaranteed the accuracy that detects, and has improved the reliability of monitoring result; On the other hand, make input shaft 5 constant operation reasonable time length under this rotating speed of generator, can obtain checkout value more accurately, thereby improve the reliability of monitoring result further.
Particularly, in step S13, can also control corresponding controlling device according to the stage of the residing life cycle of wind power generating set, so control generator input shaft in preset time length with reference rotation velocity stable operation.
When wind power generating set is in debugging on testbed during the stage, by the power plant of control test stand, the input shaft 5 that guarantees generator is with the stable operation in the length at the fixed time of predetermined rotating speed; When wind power generating set was in other stage, by the master control system of control wind power generating set, the input shaft 5 that makes generator was with the stable operation in the length at the fixed time of the rotating speed subscribed.
Please refer to Fig. 5, the schematic flow sheet of the state monitoring method that Fig. 5 is provided for the third embodiment of the present invention.
In another kind of embodiment, between step S1 and step S2, can also may further comprise the steps:
Step S121: be received under the predetermined generator input shaft rotating speed, the described testing signal in the scheduled time length carries out the conversion of time domain to frequency domain with described testing signal, and stores described testing signal.
Be received under the predetermined generator input shaft rotating speed, behind the testing signal in the scheduled time length, testing signal is carried out the conversion of time domain to frequency domain, with convenient testing signal and standard are compared, increase work efficiency, wherein, testing signal being carried out time domain can realize by Fourier transform to the conversion of frequency domain.
Certainly, can also carry out Shelving, wavelet transform process, high frequency, intermediate frequency and low-frequency analysis to testing signal and handle, disturb, obtain testing signal more accurately to get rid of.
Further, obtain the standard of life cycle different phase for convenience, simultaneously draw its state variation tendency according to the working state of wind power generating set in its life cycle, state monitoring method provided by the present invention, the testing signal and the treated testing signal of all right storage of collected.
Particularly, when wind power generating set is in service life during the later stage, in step S2, when judging that state variation tendency that testing signal exceeds standard or wind power generating set takes place wind power generating set to be shut down when unusual.
Because wind power generating set is in service life during the later stage, the fault frequency of occurrences and the fault order of severity all increase, and like this, can avoid significant trouble to occur as far as possible, thereby guarantee that wind power generating set is in the Security of service life during the later stage.
On the other hand; judge whether the state variation tendency whether testing signal exceeds standard or wind power generating set undergos mutation; just; at the variation of wind power generating set current state and the variation of wind power generating set state variation tendency; in case have one to take place unusually in the two; wind power generating set is shut down, thereby avoid the generation of major accident effectively, improve the Security that wind power generating set is in the operation of service life later stage.
Except above-mentioned condition monitoring system and method, the present invention also provides a kind of wind power generating set that comprises above-mentioned condition monitoring system, and the structure of other each several parts of this wind power generating set please refer to prior art, and this paper repeats no more.
More than wind power generating set provided by the present invention and condition monitoring system thereof and method are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (11)
1. a condition monitoring system is used for wind power generating set, it is characterized in that, comprising:
Detection device (1) is used to detect the vibration of described wind power generating set, obtains testing signal;
Control gear (2) is used for determining stage of the residing life cycle of described wind power generating set, selects the standard that prestores, and compares with described testing signal, judges the state of described wind power generating set;
Output unit (3) is used for the judged result according to described control gear (2), exports the state signal of described wind power generating set.
2. condition monitoring system according to claim 1 is characterized in that, also comprises input device (0),
Described input device (0) is used to import the instruction of the residing life cycle phase of the described wind power generating set of expression;
Described control gear (2) is determined the residing life cycle phase of described wind power generating set according to the instruction of described input device (0) input.
3. condition monitoring system according to claim 1 is characterized in that, also comprises speed detector (11) and controlling device (4);
Described speed detector (11) is used to detect the actual speed of the Transmitted chains of described wind power generating set;
Described control gear (2) obtains the actual speed of the input shaft (5) of the generator of described wind power generating set according to tach signal and predetermined strategy that described speed detector (11) obtains; Also the reference rotation velocity in actual speed and the described standard that prestores is compared, and judge the rotating speed state of the input shaft (5) of described generator;
Described controlling device (4) is regulated the rotating speed of the input shaft (5) of described generator according to the judged result of described control gear (2), the input shaft (5) that makes described generator in preset time length with described reference rotation velocity stable operation.
4. condition monitoring system according to claim 3 is characterized in that, also comprises signal pickup assembly (9), signal processing apparatus (6) and signal storage device (7),
Described signal pickup assembly (9) is according to the testing signal of the described detection device of command reception (1) of described control gear (2), and the testing signal that receives is transferred to described signal processing apparatus (6);
Described signal processing apparatus (6) receives the testing signal that described signal pickup assembly (9) is gathered, and described testing signal is carried out time domain transfer to described control gear (2) after the conversion of frequency domain;
Described signal storage device (7) is used to store the testing signal of described signal pickup assembly (9) collection and the testing signal of handling through described signal processing apparatus (6);
The testing signal that described control gear (2) is also stored according to signal storage device (7) obtains the described standard that prestores or forms the state variation tendency of described wind power generating set.
5. condition monitoring system according to claim 4 is characterized in that, also comprises theft-resistant link chain device (8);
When described control gear (2) is in the later stage of life cycle in definite described wind power generating set, can selectively trigger described theft-resistant link chain device (8);
When described control gear (2) judged that state variation tendency that described testing signal exceeds described standard that prestores or described wind power generating set is undergone mutation, described control gear (2) triggered described theft-resistant link chain device (8), and described wind power generating set is shut down.
6. a wind power generating set is characterized in that, comprises as each described condition monitoring system of claim 1 to 5.
7. a state monitoring method is used for wind power generating set, may further comprise the steps:
1) vibration of the described wind power generating set of detection obtains testing signal;
2) determine the residing life cycle phase of described wind power generating set, select the standard prestore, and compare, judge the state of described wind power generating set with described testing signal.
8. state monitoring method according to claim 7 is characterized in that, in step 2) in, by the instruction of the input described wind power generating set of expression life cycle phase of living in, determine the residing life cycle phase of described wind power generating set.
9. state monitoring method according to claim 7 is characterized in that, and is before the step 1), further comprising the steps of;
11) actual speed of the Transmitted chains of the described wind power generating set of detection obtains tach signal;
12) according to described tach signal and predetermined strategy, obtain the actual speed of the input shaft (5) of the generator of described wind power generating set, and compare with reference rotation velocity in the described standard that prestores, judge the rotating speed state of the input shaft (5) of described generator;
13) regulate the rotating speed of the input shaft (5) of described generator according to judged result, the input shaft (5) that makes described generator in preset time length with described reference rotation velocity stable operation.
10. state monitoring method according to claim 9 is characterized in that, in step 1) and step 2) between, further comprising the steps of:
121) be received under the predetermined generator input shaft rotating speed, the described testing signal in the scheduled time length carries out the conversion of time domain to frequency domain with described testing signal, and stores described testing signal.
11. state monitoring method according to claim 10; it is characterized in that; in step 2) in, when judging that state variation tendency that described testing signal exceeds described standard that prestores or described wind power generating set is undergone mutation, described wind power generating set is shut down.
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| CN103140672B (en) * | 2010-06-28 | 2016-04-20 | 维斯塔斯风力***有限公司 | The method of practice condition monitoring in wind power plant |
| CN101949774A (en) * | 2010-08-30 | 2011-01-19 | 杨彦利 | Method for monitoring remote real-time state of wind generating multi-set |
| CN102156043B (en) * | 2010-12-31 | 2013-01-16 | 北京四方继保自动化股份有限公司 | Online state monitoring and fault diagnosis system of wind generator set |
| CN102108938B (en) * | 2011-03-24 | 2012-07-04 | 湘电风能有限公司 | Method for detecting running reliability of fan safety chain |
| CN107327375B (en) * | 2016-04-28 | 2019-08-02 | 北京天诚同创电气有限公司 | Method and device for determining fan blade parameters |
| CN106762447B (en) * | 2016-12-30 | 2018-10-09 | 东方电气风电有限公司 | Wind-driven generator general assembly intelligent regulator system |
| CN107701371A (en) * | 2017-09-06 | 2018-02-16 | 合肥凌山新能源科技有限公司 | A kind of power-generating control system of multi fan wind power generating set |
| 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 |
| CN112360702B (en) * | 2020-11-16 | 2022-11-25 | 华能昌邑风力发电有限公司 | Centralized monitoring method and device for vibration data |
| CN112483334B (en) * | 2020-12-11 | 2023-04-25 | 重庆科凯前卫电气有限公司 | Intelligent control method of wind turbine generator set based on edge calculation |
| TWI765628B (en) * | 2021-03-29 | 2022-05-21 | 胡龍江 | Yaw speed control system of fan |
| CN114135450A (en) * | 2021-12-20 | 2022-03-04 | 博明创能(天津)科技有限公司 | Full life cycle detection method for wind driven generator |
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