CN202221433U - Wind measuring device for improving operating efficiency of fan and wind generating set thereof - Google Patents
Wind measuring device for improving operating efficiency of fan and wind generating set thereof Download PDFInfo
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- CN202221433U CN202221433U CN2011203095151U CN201120309515U CN202221433U CN 202221433 U CN202221433 U CN 202221433U CN 2011203095151 U CN2011203095151 U CN 2011203095151U CN 201120309515 U CN201120309515 U CN 201120309515U CN 202221433 U CN202221433 U CN 202221433U
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- measure
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- wind
- measuring device
- generating set
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides a wind measuring device for improving the operating efficiency of a fan, which is characterized in that the wind measuring device comprises a non-contact measuring probe, a measurement control unit and an output unit; the non-contact measuring probe is connected with the measurement control unit; and the measurement control unit is connected with the output unit. The wind speed in front of an impeller of the fan can be accurately measured by the wind measuring device for improving the operating efficiency of the fan, which is provided by the utility model, and thus, a more accurate operation control parameter can be obtained by a wind generating set provided by the utility model, so that the operation stability and the generating efficiency of the wind generating set are improved.
Description
Technical field
The utility model relates to technical field of wind power generation, is specifically related to a kind of wind power generating set that is used to improve the wind measuring device of fan efficiency and uses this wind measuring device.
Background technology
In the course of work of wind power generating set,, need in time adjust the propeller pitch angle of impeller according to wind speed for guaranteeing the stability of its generated output.Therefore, the accurate measurement to wind speed just seems particularly important.
At present, often adopt a kind of mechanical type wind measuring device to realize above-mentioned measuring wind speed process.This device is similar to employed vane type wind speed measuring device in the weather monitoring, and its principle is: air flow impeller rotation simultaneously, and the rotating speed of impeller has proportional relation with wind speed, thus can know wind speed at this moment according to the rotating speed of impeller.
Yet, adopt the wind power generating set of above-mentioned measuring wind speed mode in practical application, to have drawback.At first; Because above-mentioned wind measuring device adopts the metering system of physical construction; Its measuring accuracy receives the influence of factors such as external environment condition and mechanical friction easily and produces error, thereby reduces the degree of regulation of blower variable-pitch, influences the generating efficiency and the stability of blower fan the most at last.And; Because above-mentioned wind measuring device is installed in the nacelle exterior at impeller rear more; Air can at first just can pass through this wind measuring device through impeller and after losing certain kinetic energy in flow process; Therefore the air speed value that this position is measured is used for that draught fan impeller is become oar control and certainly will produces certain error, can influence the change oar precision of blower fan equally.For this reason; The technician attempts to adopt the input parameter of generator speed as pitch-controlled system, specifically be according to the variation of generator speed propeller pitch angle to be adjusted, yet this scheme has certain hysteresis quality; Thereby the output power of blower fan is constantly fluctuateed; Not only can reduce the actual power amount of blower fan, but also can increase the suffered load of impeller system, and then influence the serviceable life of blower fan.
Summary of the invention
Goal of the invention: the utility model provides a kind of wind measuring device and wind power generating set thereof that is used to improve fan operation efficient, its objective is the solution unfavorable problem of measuring wind speed mode effect in the past.
Technical scheme: the utility model is realized through following technical scheme:
A kind of wind measuring device that is used to improve fan operation efficient is characterized in that: said wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit, and measure-controlling unit connects output unit.
Be provided with in the non-contact measurement probe and measure the ripple transmitter module and measure the ripple receiver module, measurement ripple transmitter module is connected to measures the ripple receiver module, measures the ripple receiver module and is connected to measure-controlling unit.
Measure-controlling unit comprises amplifier, frequency comparator and counter, and amplifier is connected with the non-contact measurement probe on the one hand, is connected to frequency comparator on the other hand, and frequency comparator connects counter, and counter connects output unit.
Measure in the ripple transmitter module and be provided with generating laser; Measure in the ripple receiver module and be provided with laser pickoff, a part that in the non-contact measurement probe, also is provided with in the laser that generating laser is sent directly reflects the spectral module of giving laser pickoff.
Be provided with ultrasonic transmitter in the said measurement ripple transmitter module; Be provided with ultrasonic receiver in the said measurement ripple receiver module, a part that in the non-contact measurement probe, also is provided with in the ultrasound wave that ultrasonic transmitter is sent directly reflects the ultrasound wave diverter module of giving ultrasonic receiver.
This device also comprises non-contact measurement probe, measure-controlling unit and output unit is fixed on the nacelle exterior of wind power generating set or near the ground support the wind power generating set.
Use the wind power generating set that above-mentioned being used to improves the wind measuring device of fan operation efficient; Comprise cabin and impeller; Impeller puts in the cabin, is connected with generator in the cabin, and impeller is connected to the control system of wind power generating set; It is characterized in that: this wind power generating set also includes the wind measuring device that is used to improve fan operation efficient, and this wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit, and measure-controlling unit connects output unit, and output unit is connected to the control system of wind power generating set.
Be provided with in the non-contact measurement probe and measure the ripple transmitter module and measure the ripple receiver module, measurement ripple transmitter module is connected to measures the ripple receiver module, measures the ripple receiver module and is connected to measure-controlling unit; Measure-controlling unit comprises amplifier, frequency comparator and counter, and amplifier is connected with the non-contact measurement probe on the one hand, is connected to frequency comparator on the other hand, and frequency comparator connects counter, and counter connects output unit.
Measure in the ripple transmitter module and be provided with generating laser; Measure in the ripple receiver module and be provided with laser pickoff, a part that in the non-contact measurement probe, also is provided with in the laser that generating laser is sent directly reflects the spectral module of giving laser pickoff.
Be provided with ultrasonic transmitter in the said measurement ripple transmitter module; Be provided with ultrasonic receiver in the said measurement ripple receiver module, a part that in the non-contact measurement probe, also is provided with in the ultrasound wave that ultrasonic transmitter is sent directly reflects the ultrasound wave diverter module of giving ultrasonic receiver.
Advantage and effect:
The utility model provides a kind of wind measuring device that is used to improve fan operation efficient, it is characterized in that: said wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit, and measure-controlling unit connects output unit.
The wind measuring device that the utility model provides is used to improve fan operation efficient comprises non-contact measurement probe, measure-controlling unit and output unit.Wherein, above-mentioned non-contact measurement probe is used for the measurement ripple to impeller the place ahead emission CF, and the measurement ripple that reflects through air particles is received; Measure-controlling unit according to the measurement phase of wave that reflects for launching the air speed value that change of frequency when initial calculates impeller the place ahead measuring ripple; Output unit transfers to the air speed value in above-mentioned impeller the place ahead the control system of wind power generating set.Can know by said process; The wind measuring device that is used to improve fan operation efficient that the utility model provides; Realize non-contact measurement by measuring ripple to wind speed; This mode can not receive the interference of factors such as external environment condition and mechanical friction, thereby have higher measuring accuracy for mechanical type wind measuring device of the prior art.
And; The wind measuring device that the utility model provides can be measured the air speed value of the arbitrfary point outside the certain distance; Thereby can measure the wind speed before the draught fan impeller; Because the wind speed at this wind speed and place, draught fan impeller position is basic identical, thereby for the wind speed at draught fan impeller rear measured in the prior art, can controlled variable more accurately be provided for blower fan control system.Obviously, when the measured wind speed of wind measuring device that provides according to the utility model when wind power generating set carries out the adjusting of running status, can reduce its kinematic error as much as possible, thereby effectively reduce the fluctuation of draught fan impeller load, prolong its serviceable life; Simultaneously, based on same reason, wind power generating set can also effectively reduce the undulatory property of blower fan output power, thereby improves wind energy transformation efficient, promptly effectively improves generating efficiency.
The utility model can accurately be measured the wind speed in draught fan impeller the place ahead and measured wind speed is transferred to the control system of blower fan as the controlled variable of blower fan; Thereby for fan operation provides controlled variable accurately, and then the generating efficiency and the operation stability of raising blower fan.
Wind power generating set can obtain higher generating efficiency by the measured parameter of wind speed accurately of the wind measuring device of the utility model when realizing stable operation.
Description of drawings:
Fig. 1 is the structured flowchart of the utility model;
Structured flowchart when Fig. 2 measures ripple employing laser form for the utility model;
Fig. 3 is the structural representation of the wind power generating set of the utility model.
Embodiment:
As shown in Figure 1, the utility model provides a kind of wind measuring device that is used to improve fan operation efficient, and said wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit, and measure-controlling unit connects output unit.
The non-contact measurement probe is used for the measurement ripple to wind power generating set impeller the place ahead emission CF, and the said measurement ripple that reflects through air particles is received; Here, said impeller the place ahead is meant that the impeller of wind power generating set meets the direction to air-flow.
Measure-controlling unit is launched the air speed value that change of frequency when initial calculates impeller the place ahead according to the measurement phase of wave that reflects for measuring ripple;
Output unit transfers to the control system of wind power generating set with the air speed value in said impeller the place ahead, so that wind power generating set makes adjustment according to this air speed value in advance, thereby improves generating efficiency.
Said measure-controlling unit specifically calculates the air speed value in impeller the place ahead according to the principle of Doppler effect.
Be provided with in the non-contact measurement probe and measure the ripple transmitter module and measure the ripple receiver module, measurement ripple transmitter module is connected to measures the ripple receiver module, measures the ripple receiver module and is connected to measure-controlling unit.Measure the ripple transmitter module in order to impeller the place ahead emission measurement ripple; Measure the ripple receiver module in order to receive the measurement ripple that reflects through air particles.
Measure-controlling unit comprises amplifier, frequency comparator and counter, and amplifier is connected with the non-contact measurement probe on the one hand, is connected to frequency comparator on the other hand, and frequency comparator connects counter, and counter connects output unit.Amplifier connects measures the ripple receiver module.Amplifier amplifies in order to will measure the received measurement ripple of ripple receiver module; Measurement wave frequency when initial compares frequency comparator in order to the measurement wave frequency that will reflect and emission, and draws the variable quantity of the two frequency; Counter is in order to calculate the air speed value in impeller the place ahead according to said variable quantity.
The measured wavelength-division of the utility model is laser and ultrasound wave, adopts the measuring principle of above-mentioned two kinds of different measuring ripples and process basic identical.When the ripple of measuring is laser; The structure of non-contact measurement probe is following; As shown in Figure 2: as to measure in the ripple transmitter module and be provided with generating laser; Measure in the ripple receiver module and be provided with laser pickoff, in the non-contact measurement probe, also be provided with spectral module, the effect of spectral module is that laser pickoff is given in the direct reflection of the part in the laser that generating laser is sent; Like this, laser pickoff just can receive laser that reflects through air particles and the laser that is directly sent by generating laser simultaneously.
When the ripple of measuring was ultrasound wave, the structure of non-contact measurement probe was following:
Be provided with ultrasonic transmitter in the said measurement ripple transmitter module; Be provided with ultrasonic receiver in the said measurement ripple receiver module; In the non-contact measurement probe, also be provided with the ultrasound wave diverter module; The structure of non-contact measurement probe is following; The a part of of ultrasound wave who is used for ultrasonic transmitter is sent directly reflected to ultrasonic receiver, thereby makes ultrasonic receiver receive ultrasound wave that reflects through air particles and the ultrasound wave that is directly sent by ultrasonic transmitter simultaneously.
This device also includes support, is used for the whole device that comprises non-contact measurement probe, measure-controlling unit and output unit is fixed on the nacelle exterior of wind power generating set or near the ground the wind power generating set.What the A point among Fig. 4 showed is one of them position on wind power generating set that the utility model is fixed.Above-mentioned two kinds of measuring accuracy that mounting means produced are slightly different with purposes; Be specially: when being installed on nacelle exterior to wind measuring device; Thereby can make the utility model measure the wind speed in paddle wheel plane dead ahead all the time with cabin driftage, the measuring accuracy height of this mode but cost also can correspondingly improve; In the time of near being installed on wind measuring device wind power generating set the ground; Same wind measuring device can be simultaneously for the many typhoons power generator group that is in this device certain distance scope provides air speed data, and the measuring accuracy of this mode can decrease but can practice thrift a large amount of equipment costs.Can be after the requirement of taking all factors into consideration cost budgeting and measuring accuracy etc. about which kind of installation of concrete employing and metering system and determine.The structure of above-mentioned support can be used for reference the various physical constructions in the technique for fixing at present commonly used, as long as guarantee under the wind action of certain intensity, can keep wind measuring device agent set safety with firmly get final product.
The utility model also provides a kind of wind power generating set of using above-mentioned wind measuring device in addition; Comprise cabin and impeller; Impeller puts in the cabin, is connected with generator in the cabin, and impeller is connected to the control system of wind power generating set; This wind power generating set also includes the wind measuring device that is used to improve fan operation efficient, and this wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit; Measure-controlling unit connects output unit; Output unit is connected to the control system of wind power generating set, and the control system of said wind power generating set is adjusted the running status of draught fan impeller according to the wind speed in impeller the place ahead in real time.Being used in this wind power generating set improved the structure of wind measuring device of fan operation efficient with above-described identical, here repeats no more.
During the utility model work; Impeller rotates under wind action and the generator that drives in the said cabin generates electricity; Meanwhile, the non-contact measurement probe is to the measurement ripple of impeller the place ahead emission CF, and the measurement ripple that the process air particles is reflected receives; Signal after will receiving then is passed to measure-controlling unit, and measure-controlling unit is launched the air speed value that change of frequency when initial calculates impeller the place ahead according to the measurement phase of wave that reflects for measuring ripple; And then the air speed value in impeller the place ahead being transferred to the control system of wind power generating set through output unit, the control system of wind power generating set is then adjusted the running status such as draught fan impeller etc. according to above-mentioned wind speed in real time, thereby improves generating efficiency.
And the following concrete course of work when measuring ripple and be respectively laser and ultrasound wave is described:
When measuring ripple and be laser, at first, be the measuring position of wind speed with a certain set positions in draught fan impeller dead ahead, and make generating laser and laser pickoff in the non-contact measurement probe all aim at this position; Afterwards, start the generating laser and the laser pickoff of wind measuring device, to measuring position emission laser, part laser is reflected and is received by laser pickoff by the air particles at place, above-mentioned measuring position; Simultaneously, a part of laser is directly reflexed to laser pickoff by spectral module; Like this; On laser pickoff, can obtain simultaneously to launch when initial laser and via the laser of the air particles reflected back at place, measuring position; And the laser of above-mentioned two kinds of different frequencies is converted into electric signal in laser pickoff, is transferred to each follow-up module then and handles; Next, amplifier amplifies above-said current signal in case stop signal distortion in subsequent treatment; Electric signal after processing and amplifying is transferred to frequency comparator; The frequency of the laser institute electrical signal converted that frequency comparator can reflect to the frequency of above-mentioned laser institute electrical signal converted when coming self-emission initial and from the measuring position compares; Thereby obtain the variable quantity of the two frequency, also just obtained above-mentioned through air particles laser frequency that reflects and the variable quantity of launching initial laser frequency; According to the principle of Doppler effect, counter just can accurately calculate the air speed value at place, measuring position according to the variable quantity of above-mentioned laser frequency; At last, by output module the wind speed that is drawn is exported to wind power generating set.When above-mentioned generating laser during, can realize continuous coverage to this position wind speed continuously to measuring position emission laser.
Measuring wind speed process for adopting ultrasound wave to carry out as measuring ripple is identical with above-mentioned laser measurement process, thereby repeats no more.
Can know through foregoing description; The wind measuring device that the utility model provides carries out measuring wind speed by the measurement ripple such as laser or ultrasound wave etc. to predefined position, for example, the wind speed of the position of draught fan impeller the place ahead certain distance is carried out accurate contactless measurement; Thereby can effectively guarantee the accuracy of the wind speed of surveying; And can not receive the influence of factors such as mechanical friction and environment, certainly, can adopt laser and ultrasound wave to measure simultaneously yet.Therefore, the wind measuring device that the utility model provides can provide accurate wind speed parameter for the operation control of wind power generating set, thereby when guaranteeing fan operation stability, effectively improves the generating efficiency of wind power generating set.
Because the utility model being used to of providing improved the wind speed that the wind measuring device of fan operation efficient can accurately be measured draught fan impeller the place ahead; So the wind power generating set that the utility model provides can obtain operational parameter control more accurately, thereby improve its operation stability and generating efficiency.
Claims (10)
1. wind measuring device that is used to improve fan operation efficient, it is characterized in that: said wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit, and measure-controlling unit connects output unit.
2. the wind measuring device that is used to improve fan operation efficient according to claim 1; It is characterized in that: be provided with in the non-contact measurement probe and measure the ripple transmitter module and measure the ripple receiver module; Measure the ripple transmitter module and be connected to measurement ripple receiver module, measure the ripple receiver module and be connected to measure-controlling unit.
3. the wind measuring device that is used to improve fan operation efficient according to claim 1; It is characterized in that: measure-controlling unit comprises amplifier, frequency comparator and counter; Amplifier is connected with the non-contact measurement probe on the one hand; Be connected to frequency comparator on the other hand, frequency comparator connects counter, and counter connects output unit.
4. the wind measuring device that is used to improve fan operation efficient according to claim 2; It is characterized in that: measure in the ripple transmitter module and be provided with generating laser; Measure in the ripple receiver module and be provided with laser pickoff, a part that in the non-contact measurement probe, also is provided with in the laser that generating laser is sent directly reflects the spectral module of giving laser pickoff.
5. the wind measuring device that is used to improve fan operation efficient according to claim 2; It is characterized in that: be provided with ultrasonic transmitter in the said measurement ripple transmitter module; Be provided with ultrasonic receiver in the said measurement ripple receiver module, a part that in the non-contact measurement probe, also is provided with in the ultrasound wave that ultrasonic transmitter is sent directly reflects the ultrasound wave diverter module of giving ultrasonic receiver.
6. the wind measuring device that is used to improve fan operation efficient according to claim 1 is characterized in that: this device also comprises non-contact measurement probe, measure-controlling unit and output unit is fixed on the nacelle exterior of wind power generating set or near the ground support the wind power generating set.
7. application rights requires the 1 described wind power generating set that is used to improve the wind measuring device of fan operation efficient; Comprise cabin and impeller; Impeller puts in the cabin, is connected with generator in the cabin, and impeller is connected to the control system of wind power generating set; It is characterized in that: this wind power generating set also includes the wind measuring device that is used to improve fan operation efficient, and this wind measuring device comprises non-contact measurement probe, measure-controlling unit and output unit; The non-contact measurement probe connects measure-controlling unit, and measure-controlling unit connects output unit, and output unit is connected to the control system of wind power generating set.
8. wind power generating set according to claim 7; It is characterized in that: be provided with in the non-contact measurement probe and measure the ripple transmitter module and measure the ripple receiver module; Measure the ripple transmitter module and be connected to measurement ripple receiver module, measure the ripple receiver module and be connected to measure-controlling unit; Measure-controlling unit comprises amplifier, frequency comparator and counter, and amplifier is connected with the non-contact measurement probe on the one hand, is connected to frequency comparator on the other hand, and frequency comparator connects counter, and counter connects output unit.
9. wind power generating set according to claim 8; It is characterized in that: measure in the ripple transmitter module and be provided with generating laser; Measure in the ripple receiver module and be provided with laser pickoff, a part that in the non-contact measurement probe, also is provided with in the laser that generating laser is sent directly reflects the spectral module of giving laser pickoff.
10. wind power generating set according to claim 8; It is characterized in that: be provided with ultrasonic transmitter in the said measurement ripple transmitter module; Be provided with ultrasonic receiver in the said measurement ripple receiver module, a part that in the non-contact measurement probe, also is provided with in the ultrasound wave that ultrasonic transmitter is sent directly reflects the ultrasound wave diverter module of giving ultrasonic receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203095151U CN202221433U (en) | 2011-08-24 | 2011-08-24 | Wind measuring device for improving operating efficiency of fan and wind generating set thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203095151U CN202221433U (en) | 2011-08-24 | 2011-08-24 | Wind measuring device for improving operating efficiency of fan and wind generating set thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202221433U true CN202221433U (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203095151U Expired - Lifetime CN202221433U (en) | 2011-08-24 | 2011-08-24 | Wind measuring device for improving operating efficiency of fan and wind generating set thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN202221433U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777035A (en) * | 2012-10-19 | 2014-05-07 | 华锐风电科技(集团)股份有限公司 | Draught-fan air-speed measurement method, device and system |
| CN108027385A (en) * | 2015-09-13 | 2018-05-11 | 风电场分析有限公司 | Wind vectors measuring system |
| CN113803222A (en) * | 2021-09-22 | 2021-12-17 | 鲁志平 | Ultra-short-term prediction method and device for output power of wind generating set |
-
2011
- 2011-08-24 CN CN2011203095151U patent/CN202221433U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777035A (en) * | 2012-10-19 | 2014-05-07 | 华锐风电科技(集团)股份有限公司 | Draught-fan air-speed measurement method, device and system |
| CN108027385A (en) * | 2015-09-13 | 2018-05-11 | 风电场分析有限公司 | Wind vectors measuring system |
| US11125769B2 (en) | 2015-09-13 | 2021-09-21 | Wind Farm Analytics Ltd | Wind vector field measurement system |
| CN113803222A (en) * | 2021-09-22 | 2021-12-17 | 鲁志平 | Ultra-short-term prediction method and device for output power of wind generating set |
| CN113803222B (en) * | 2021-09-22 | 2023-01-03 | 鲁志平 | Ultra-short-term prediction method and device for output power of wind generating set |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 49 Century Road, Hunnan New District, Shenyang City, Liaoning Province, 110000 Patentee after: China Power Investment Northeast Energy Technology Co., Ltd. Address before: 110181 No. 8, No. 2 Hunnan Road, Hunnan New District, Shenyang City, Liaoning Province Patentee before: CPI Northeast Energy-saving Technology Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120516 |