CN102305874B - Method for measuring effective wind speed of wind generating set by adopting complementary filter and device for implementing method - Google Patents
Method for measuring effective wind speed of wind generating set by adopting complementary filter and device for implementing method Download PDFInfo
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Abstract
The invention discloses a method for measuring an effective wind speed of a wind generating set by adopting a complementary filter and a device for implementing the method, and belongs to the technical field of wind power generation. The invention solves the problem that both the accuracy and quickness cannot be achieved simultaneously in the conventional method for measuring an effective wind speed value of the wind generating set. In the method, a first wind speed signal S1 on an impeller of the wind generating set is measured by an anemograph, a low frequency signal of the S1 is filtered by a high-pass filter, and a high frequency component S2 of the first wind speed signal S1 is obtained; a generator signal S3 of the wind generating set is measured by a generator parameter acquisition sensor; the generator signal S3 is converted into a second wind speed signal S4 through a computation module; a high frequency signal of the second wind speed signal S4 is filtered by a low-pass filter, and a low frequency component S5 of the second wind speed signal S4 is obtained; and the high frequency component S2 and the low frequency component S5 are added by an addition module to form the effective wind speed S6 of the wind generating set. The invention is suitable for measuring the effective wind speed of the wind generating set.
Description
Technical field
The present invention relates to a kind of device that adopts the method for complementary filter measurement wind power generating set effective wind speed and realize this method, belong to technical field of wind power generation.
Background technology
Wind power generating set is the equipment that wind energy is converted into electric energy.Because wind energy being converted in the process of electric energy, only reduced the speed of air-flow, do not cause any pollution to atmosphere, therefore adopt the wind power generating set generating to the protection environment, to improve energy structure significant.
Wind energy is a kind of unsettled energy; Its speed and direction are among the variation always, and for the quality of power supply that guarantees that genset sends, the control system of unit needs constantly the variation according to suffered wind-force of unit and wind direction; The output of adjustment unit; Satisfying the demand of electrical network, so the control technology of control system becomes the key of wind power generating set safe and highly efficient operation, and realizes the accurate measurement of wind speed is become the precondition of design control system.
In the wind field environment that becomes when wind power generating set is in three-dimensional; It receives the influence of factors such as turbulent flow, pylon, pneumatic shear difference and roughness of ground surface simultaneously; Therefore the distribution of wind speed on whole wind power generating set impeller Plane of rotation has very big difference; In technical field of wind power generation; The impeller that produces identical pneumatic torque is swept the mean wind speed of wind face, and perhaps the effective value of the pairing wind speed of wind energy of wind power generating set actual acquisition is applied in the control technology of wind power generating set as effective wind speed.The effective wind speed of described wind power generating set can not directly be measured acquisition, can only adopt round-about way to estimate.
In traditional wind power generating set; Employing is positioned at the wind gage measuring wind of nacelle top, and described wind gage comprises vane anemometer or rotary-cup type wind gage etc., because this type of wind gage is small-sized; Can only measure the wind speed of very low range, promptly so-called some wind speed.The wind speed and the suffered wind speed of whole wind power generating set impeller Plane of rotation that obtain like this have than big difference; Therefore the size of the measurement result wind energy that is difficult to reflect that the impeller Plane of rotation is truly caught; Simultaneously owing to be subject to the interference of the influence of factors such as turbulent flow, pylon, pneumatic shear are poor, roughness of ground surface; The result that wind gage is measured can't accurately reflect the size of effective wind speed, and accuracy is relatively poor.So the effective wind speed that obtains based on the measurement of wind gage, and and then the wind speed that obtains is regulated rotating speed and power is coarse.But simultaneously because size and the inertia of wind gage are generally less, so its wind velocity signal of measuring exists again the response of effective wind speed variation advantage faster, can reflect the dynamic change of effective wind speed.
On the other hand; If do not consider the mechanical loss and the generator loss of wind power generating set; The wind energy that the impeller of wind power generating set is caught will all convert the electric energy output of generator to; Therefore the steady-state value of the electric power signal of generator can accurately characterize the steady-state value of the wind energy of wind power generating set actual acquisition, and then has accurately characterized the steady-state value of the effective wind speed that impeller is caught (available wind energy).The signal that therefore can reflect the output electric energy of generator through rotating speed, electric power or the electromagnetic torque etc. of measuring generator of wind generating set; Estimate the effective wind speed of wind power generating set impeller; Its related method comprises the System Discrimination technology; The state observer technology, fuzzy control technology and data mining technology etc., the essence of these methods is that vane rotor has been used as a huge wind gage.But because the vane rotor of wind power generating set has very large inertia; Therefore the signals such as rotating speed, electric power or electromagnetic torque of generator are slower to the response that effective wind speed changes; Can't reflect the dynamic change of wind speed; The high frequency error of measuring for effective wind speed is bigger, can think the HF noise signal that on the effective wind speed signal, superposeed.
In a word; The measuring method of present wind power generating set effective wind speed can not be taken into account accuracy and rapidity: the wind velocity signal that wind gage is measured is very fast to the response that effective wind speed changes; But be subject to the interference of the influence of factors such as turbulent flow, pylon, pneumatic shear are poor, roughness of ground surface, accuracy is relatively poor; Can accurately reflect the steady-state value that effective wind speed changes during signal stable states such as the rotating speed of generator, electric power or electromagnetic torque, but its response is slower, can't reflect the dynamic change of wind speed.Therefore a kind of method of estimation of simple and effective wind power generating set effective wind speed need be provided, so as can be not only accurately but also estimate the effective wind speed of wind power generating set apace.
Summary of the invention
The objective of the invention is to take into account the problem of accuracy and rapidity, a kind of device that adopts the method for complementary filter measurement wind power generating set effective wind speed and realize this method is provided for the measurement that solves existing effective wind speed value to wind power generating set.
Employing complementary filter of the present invention is measured the method for wind power generating set effective wind speed, and it realizes that based on wind gage, Hi-pass filter, generator parameter pick-up transducers, computing module, low-pass filter and addition module said method is:
Adopt wind gage to measure the wind speed on the wind power generating set impeller, obtain the first wind velocity signal S1; The first wind velocity signal S1 obtains the high fdrequency component S2 of the first wind velocity signal S1 behind Hi-pass filter filters low signal;
Adopt the generator parameter pick-up transducers to measure the generator signal of aerogenerator unit simultaneously, obtain generator signal S3; Generator signal S3 converts the second wind velocity signal S4 to through computing module; The second wind velocity signal S4 obtains the low frequency component S5 of the second wind velocity signal S4 behind the low pass filter filters out high-frequency signal;
Adopt addition module with high fdrequency component S2 and low frequency component S5 addition, obtain the effective wind speed S6 of wind power generating set.
The employing complementary filter of the method for the above-mentioned employing complementary filter measurement of realization according to the invention wind power generating set effective wind speed is measured the device of wind power generating set effective wind speed; It is made up of wind gage, Hi-pass filter, generator parameter pick-up transducers, computing module, low-pass filter and addition module
Wind gage is used to measure the wind speed on the wind power generating set impeller; The first wind velocity signal S1 output terminal of wind gage connects the first wind velocity signal S1 input end of Hi-pass filter, and the high fdrequency component S2 signal output part of Hi-pass filter connects the high fdrequency component S2 signal input part of addition module;
The generator parameter pick-up transducers is used to measure the generator signal S3 of aerogenerator unit; The generator signal S3 output terminal of generator parameter pick-up transducers connects the generator signal S3 input end of computing module; The second wind velocity signal S4 output terminal of computing module connects the second wind velocity signal S4 input end of low-pass filter, and the low frequency component S5 signal output part of low-pass filter connects the low frequency component S5 signal input part of addition module.
Advantage of the present invention is: the present invention has estimated the effective wind speed of genset through round-about way; It measures the wind speed on the wind power generating set impeller through wind gage; Generating transducer is measured the generator signal of aerogenerator unit; Through calculating, obtain the effective wind speed of wind power generating set again.The present invention combines the effective wind speed that directly adopts wind gage to measure acquisition wind electricity unit in the prior art with the method that the electric power signal that adopts generator obtains the effective wind speed of wind power generating set impeller; In the accuracy that ensures the effective wind speed result; Can ensure the rapidity of the response that wind speed is changed again; Make the effective wind speed value of the wind power generating set of finally obtaining quick, reflected the variation of wind power generating set effective wind speed accurately, have simple and effective advantage.
Description of drawings
Fig. 1 is a theory diagram of the present invention.
Embodiment
Embodiment one: this embodiment is described below in conjunction with Fig. 1; The said employing complementary filter of this embodiment is measured the method for wind power generating set effective wind speed; It realizes that based on wind gage 1, Hi-pass filter 2, generator parameter pick-up transducers 3, computing module 4, low-pass filter 5 and addition module 6 said method is:
The wind speed that adopts wind gage 1 to measure on the wind power generating set impeller obtains the first wind velocity signal S1; The first wind velocity signal S1 obtains the high fdrequency component S2 of the first wind velocity signal S1 behind Hi-pass filter 2 filters low signals;
Adopt generator parameter pick-up transducers 3 to measure the generator signal of aerogenerator unit simultaneously, obtain generator signal S3; Generator signal S3 converts the second wind velocity signal S4 to through computing module 4; The second wind velocity signal S4 obtains the low frequency component S5 of the second wind velocity signal S4 behind low-pass filter 5 filtering high-frequency signals;
Adopt addition module 6 with high fdrequency component S2 and low frequency component S5 addition, obtain the effective wind speed S6 of wind power generating set.
Hi-pass filter 2 described in this embodiment has constituted complementary filter with low-pass filter 5; Wind gage 1 is measured the first wind velocity signal S1 that obtains and is passed through Hi-pass filter 2 filters low signals; Generator parameter pick-up transducers 3 is measured the generator signal S3 that obtains and is passed through low-pass filter 5 filtering high-frequency signals, these two filtered results is synthesized the effective wind speed S6 of wind power generating set through addition module 6.
Described wind gage 1 can adopt vane anemometer, pressure tubular type wind gage, hot wire anemometer or sonic anemometer etc.
The described generator parameter pick-up transducers 3 of this embodiment is sensors of installing on the generator, can measure the generator signal of wind power generating set as required and select power sensor or speed probe etc.
Embodiment two: this embodiment is for to the further specifying of embodiment one, and the generator signal S3 of said aerogenerator unit is dynamo power signal, generator electromagnetic torque signal, generator speed signal or generator drive axle tach signal.
Embodiment three: this embodiment is for to the further specifying of embodiment one, and the generator signal S3 of said aerogenerator unit is the combination of any several kinds of signals in dynamo power signal, generator electromagnetic torque signal, generator speed signal and four kinds of generator signals of generator drive axle tach signal.
Embodiment four: this embodiment is for to the further specifying of embodiment one, two or three, and the transport function of said Hi-pass filter 2 is 1/ (τ s+1), and wherein τ is a time constant, and s is a Laplace operator.
Embodiment five: this embodiment is for to the further specifying of embodiment one, two, three or four, and the transport function of said low-pass filter 5 is τ s/ (τ s+1), and wherein τ is a time constant, and s is a Laplace operator.
Embodiment six: this embodiment is described below in conjunction with Fig. 1; The employing complementary filter that said realization embodiment one to the five said employing complementary filter of this embodiment is measured the method for wind power generating set effective wind speed is measured the device of wind power generating set effective wind speed; It is made up of wind gage 1, Hi-pass filter 2, generator parameter pick-up transducers 3, computing module 4, low-pass filter 5 and addition module 6
Generator parameter pick-up transducers 3 is used to measure the generator signal S3 of aerogenerator unit; The generator signal S3 output terminal of generator parameter pick-up transducers 3 connects the generator signal S3 input end of computing module 4; The second wind velocity signal S4 output terminal of computing module 4 connects the second wind velocity signal S4 input end of low-pass filter 5, and the low frequency component S5 signal output part of low-pass filter 5 connects the low frequency component S5 signal input part of addition module 6.
The described generator parameter pick-up transducers 3 of this embodiment is sensors of installing on the generator, can measure the generator signal of wind power generating set as required and select power sensor or speed probe etc.
Embodiment seven: this embodiment is for to the further specifying of embodiment six, and said generator parameter pick-up transducers 3 is used to measure dynamo power signal, generator electromagnetic torque signal, generator speed signal or the generator drive axle tach signal of aerogenerator unit.
Claims (5)
1. method that adopts complementary filter to measure the wind power generating set effective wind speed; It is realized based on wind gage (1), Hi-pass filter (2), generator parameter pick-up transducers (3), computing module (4), low-pass filter (5) and addition module (6); It is characterized in that said method is:
Adopt wind gage (1) to measure the wind speed on the wind power generating set impeller, obtain the first wind velocity signal S1; The first wind velocity signal S1 obtains the high fdrequency component S2 of the first wind velocity signal S1 behind Hi-pass filter (2) filters low signal;
Adopt generator parameter pick-up transducers (3) to measure the generator signal of aerogenerator unit simultaneously, obtain generator signal S3; Generator signal S3 converts the second wind velocity signal S4 to through computing module (4); The second wind velocity signal S4 obtains the low frequency component S5 of the second wind velocity signal S4 behind low-pass filter (5) filtering high-frequency signal;
Adopt addition module (6) with high fdrequency component S2 and low frequency component S5 addition, obtain the effective wind speed S6 of wind power generating set;
The transport function of said Hi-pass filter (2) is 1/ (τ s+1),
The transport function of low-pass filter (5) is τ s/ (τ s+1), and wherein τ is a time constant, and s is a Laplace operator.
2. employing complementary filter according to claim 1 is measured the method for wind power generating set effective wind speed, and it is characterized in that: the generator signal S3 of said aerogenerator unit is dynamo power signal, generator electromagnetic torque signal, generator speed signal or generator drive axle tach signal.
3. employing complementary filter according to claim 1 is measured the method for wind power generating set effective wind speed, and it is characterized in that: the generator signal S3 of said aerogenerator unit is the combination of any several kinds of signals in dynamo power signal, generator electromagnetic torque signal, generator speed signal and four kinds of generator signals of generator drive axle tach signal.
4. realize that the said employing complementary filter of claim 1 measures the device that the employing complementary filter of the method for wind power generating set effective wind speed is measured the wind power generating set effective wind speed for one kind; It is characterized in that: it is made up of wind gage (1), Hi-pass filter (2), generator parameter pick-up transducers (3), computing module (4), low-pass filter (5) and addition module (6)
Wind gage (1) is used to measure the wind speed on the wind power generating set impeller; The first wind velocity signal S1 output terminal of wind gage (1) connects the first wind velocity signal S1 input end of Hi-pass filter (2), and the high fdrequency component S2 signal output part of Hi-pass filter (2) connects the high fdrequency component S2 signal input part of addition module (6);
Generator parameter pick-up transducers (3) is used to measure the generator signal S3 of aerogenerator unit; The generator signal S3 output terminal of generator parameter pick-up transducers (3) connects the generator signal S3 input end of computing module (4); The second wind velocity signal S4 output terminal of computing module (4) connects the second wind velocity signal S4 input end of low-pass filter (5), and the low frequency component S5 signal output part of low-pass filter (5) connects the low frequency component S5 signal input part of addition module (6).
5. employing complementary filter according to claim 4 is measured the device of wind power generating set effective wind speed, and it is characterized in that: said generator parameter pick-up transducers (3) is used to measure dynamo power signal, generator electromagnetic torque signal, generator speed signal or the generator drive axle tach signal of aerogenerator unit.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209334Y (en) * | 1994-04-11 | 1995-10-04 | 华北电力学院 | Intelligent wind anemometer |
| KR100830518B1 (en) * | 2006-12-19 | 2008-05-21 | 영남대학교 산학협력단 | Wind speed estimating method of wind generation system using svr algorithm |
| EP2105746A2 (en) * | 2008-03-27 | 2009-09-30 | Fuji Jukogyo Kabushiki Kaisha | Method for measuring the turbulence intensity of a horizontal axis wind turbine |
| CN101676556A (en) * | 2008-09-19 | 2010-03-24 | 通用电气公司 | Differential vibration control for wind turbines |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3252178B2 (en) * | 1992-12-30 | 2002-01-28 | カシオ計算機株式会社 | Wind speed display |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209334Y (en) * | 1994-04-11 | 1995-10-04 | 华北电力学院 | Intelligent wind anemometer |
| KR100830518B1 (en) * | 2006-12-19 | 2008-05-21 | 영남대학교 산학협력단 | Wind speed estimating method of wind generation system using svr algorithm |
| EP2105746A2 (en) * | 2008-03-27 | 2009-09-30 | Fuji Jukogyo Kabushiki Kaisha | Method for measuring the turbulence intensity of a horizontal axis wind turbine |
| CN101676556A (en) * | 2008-09-19 | 2010-03-24 | 通用电气公司 | Differential vibration control for wind turbines |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平6-201714A 1994.07.22 |
| 张新房等.大型变速风力发电机组的风速软测量.《太阳能学报》.2006,第27卷(第4期),321-325. * |
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