CN203685496U - Main transmission device of static-pressure differential speed regulation type wind turbine generator set - Google Patents
Main transmission device of static-pressure differential speed regulation type wind turbine generator set Download PDFInfo
- Publication number
- CN203685496U CN203685496U CN201320762700.5U CN201320762700U CN203685496U CN 203685496 U CN203685496 U CN 203685496U CN 201320762700 U CN201320762700 U CN 201320762700U CN 203685496 U CN203685496 U CN 203685496U
- Authority
- CN
- China
- Prior art keywords
- gear
- speed
- pump
- generator set
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to a main transmission device of a static-pressure differential speed regulation type wind turbine generator set. The transmission device consists of a planetary differential mechanism with two tooth rings (two driving links), a variable hydraulic pump, a quantitative hydraulic motor, a motor driving fixed shaft center wheel, a speed measurement sensor, an electronic control unit, a variable hydraulic pump displacement regulation execution mechanism, a hydraulic pipeline, an output bull wheel and an input pinion, wherein the output gear is mounted on an output shaft of a sun wheel and is meshed with the input gear at the rotor shaft end of the hydraulic pump so as to drive the pump to suck oil; the speed measurement sensor acquires information and feeds back the information to the electronic control unit; a control execution mechanism is used for changing the flow of a variable pump; a driving quantitative pump drives the fixed shaft center wheel to change a rotating speed; the center wheel drives the tooth rings through an inert wheel, so that the planetary differential mechanism can change the speed of one driving link (a planetary frame) under the condition of the speed of the other driving link (the tooth ring); therefore the rotating speed of the sun wheel is constant, and the aim that the rotating speed of an input shaft of a generator is constant is fulfilled; the service life of the generator set is prolonged, and the adaptability to the wind speed change of the generator set is improved.
Description
Technical field
The present invention relates to the main transmission in a kind of static-pressure differential speed regulation-type wind power generating set, be particularly useful for the direct online generator set of generated output in 300KW left and right.。
Background technique
Wind energy, as a kind of clean renewable energy sources, contains and has a high potential, and is more and more subject to the attention of countries in the world, but because the complexity of its main transmission and the more high reason of maintenance cost are restricting the development of wind-powered electricity generation.Wind power generating set on existing market is mainly divided into two kinds at present: gearless (directly driving type) wind power generating set and gear wind power generating set.Direct-drive aerogenerator group, is a kind of by wind-force direct drive generator, and this generator adopts multipolar dynamo to be directly connected with impeller the mode driving, and removes this legacy device of gear-box from.Advantage is: high efficiency, low noise, long-life when low wind speed, reduce unit volume, reduce operation expense etc., but because the power of generator changes greatly with wind speed, and himself shortcomings of magneto limits its application, do not become the main flow of wind-power electricity generation at present.Gear wind power generating set is the main flow of current wind-powered electricity generation, and the main transmission of existing wind power generating set is made up of wind wheel, transmission shaft, speedup box, generator.Wind wheel rotates under the driving of wind energy, and wind wheel is contained on transmission shaft, and transmission shaft drives speed increaser to rotate by coupling, and the output shaft of speed increaser is connected with the input shaft of generator by coupling, drives generator to rotate.Because occurring in nature wind speed is constantly to change, it is low when time is high, thereby the rotating speed of wind wheel also can change along with the variation of wind speed, making to drive the rotating speed of generator is not a constant value, thereby common solution is put case and is had two kind one to be to need the high-power electronic device such as frequency variator, transformer, thereby increase the complexity of wind-driven generator unit, increase the quality of head.The 2nd, adopt some arrangements for speed regulation, make the work of generator constant speed, but these arrangements for speed regulation are conventionally all comparatively complicated, cost is higher.
Therefore there is following some deficiency in above-mentioned two kinds of wind-powered electricity generation main transmissions: 1 gearless wind power generating set power swing is larger, and storage battery and electrical network are had to large impact.2 gear wind power generating set need complicated speed governing converter plant.
Summary of the invention
In order to solve the unstability of existing main transmission in wind generating set due to wind-force, making to drive the rotating speed of generator is not a constant value, need frequency variator, the high-power electronic devices such as transformer, increase the weight of the problems such as head quality and maintenance cost, the invention provides the static-pressure differential speed regulation-type main transmission in a kind of wind power generating set, the simple compactness of this transmission structures is easy to realize, transmission efficiency is high, low maintenance cost, high reliability, applicable wind speed excursion is large, constant generator input shaft rotating speed, thereby reach the main transmission that makes electric frequency that wind power generating set sends and power keep the wind power generating set of constant object.
Static-pressure differential speed regulation-type wind power generating set main transmission of the present invention: there are two degrees of freedom in planet differential mechanism, and gear ring and planet carrier are driving link, thus ensure that output shaft (sun gear) has constant rotating speed.
This static-pressure differential speed regulation-type wind power generating set main transmission comprises: planet carrier 1, planetary pinion 2, ring gear 3, sun gear 4, idle pulley 5, dead axle central gear 6, hydraulic tubing 7, fuel tank 8, constant displacement hydraulic motor 9, volume adjustable hydraulic pump 11, output gear 12, the output shaft (being the input shaft of generator) 13 of planet differential, tachogenerator 14, variable displacement pump input shaft 15, input gear 16, actuator 17, electronic control unit 18, wherein, the output shaft 13(of planet differential is the input shaft of generator) sun gear 4 of upper installation, sun gear 4 engages with planetary pinion 2 by planet carrier 1, planetary pinion 2 is enclosed within ring gear 3, ring gear 3 engages with idle pulley 5, dead axle central gear 6 is arranged on the output shaft 13 of planet differential, and engages with idle pulley 5, dead axle central gear 6 is connected with constant displacement hydraulic motor 9, constant displacement hydraulic motor 9 one end are communicated with fuel tank 8 by hydraulic tubing 7, and the constant displacement hydraulic motor the other end is communicated with volume adjustable hydraulic pump 11 by hydraulic tubing, volume adjustable hydraulic pump 11 is connected with actuator 17, and is connected with variable displacement pump input shaft 15, input gear 16 is installed on variable displacement pump input shaft 15, and input gear engages with the output gear 12 of the output shaft one end that is arranged on planet differential, on output shaft one end of planet differential and blower fan, tachogenerator 14 is installed, tachogenerator 14 is connected with electronic control unit 18, electronic control unit is connected with actuator.
Variable displacercent pump is subject to electronic control unit adjusting to become and change with rotation speed of fan, and volume adjustable hydraulic pump input speed is constant, and POF changes with displacement variation.Volume adjustable hydraulic pump goes out rotating speed by the speed of changes in flow rate regulator solution pressure motor, and constant displacement hydraulic motor regulates the gear ring rotating speed of planetary differential train to realize the constant speed output of output shaft, thereby reaches the object that makes the work of generator variable speed constant frequency.
Output gear is installed on output shaft, output gear engages with the input gear of cylinder block of hydraulic pumps axle head, drive pump oil suction, tachogenerator Information Monitoring feeds back to electronic control unit, control actuator and change variable displacement pump flow, drive metering pump to drive dead axle central gear to change rotating speed, central gear drives gear ring by idle pulley, make planet differential mechanism under a driving link (planet carrier) speed conditions, change another driving link (gear ring), thereby make sun gear invariablenes turning speed, reach the constant object of generator input shaft rotating speed.Thereby without the high-power electronic device such as frequency variator, transformer, effectively reduce head quality, the method that simplifies the operation, the adaptive capacity that has improved the working life of generator set and wind speed is changed.
Advantage of the present invention has:
1 this transmission device comprises the advantage of electrical network: 1. low harmonic effect; 2. accurate meritorious and wattless power adjusting; 3. zero pressure drop and high short circuit current.
2 these transmission devices comprise the advantage of wind power equipment: 1. simple and compact for structure, transmission efficiency is high; 2. low maintenance cost and high generating effect; 3. without slip ring, brushless, reliability is higher; 4. without the high-power electronic device such as frequency variator, transformer, effectively reduce head quality; 5. without breaker protection frequency variator; 6. without reactive power compensation device.
Brief description of the drawings
Fig. 1 is the static-pressure differential speed regulation-type main transmission in wind generating set fundamental diagram the present invention relates to.
Embodiment
As shown in the figure, under different wind speed, the rotating speed of impeller and generator input shaft also changes thereupon, tachogenerator 14 feeds back to electronic control unit after treatment by gathering next impeller and the rotary speed data of variable displacement pump input shaft 15, electronic control unit sends instruction control actuator, the discharge capacity of actuator's Moderator Variable oil hydraulic pump 11.Input gear 16 is installed on variable displacement pump input shaft 15, and input gear 16 engages with output gear 12, and input gear 16 drives variable displacement pump input shaft 15 to rotate, axle invariablenes turning speed, and POF changes with displacement variation.Volume adjustable hydraulic pump 11 drives constant displacement hydraulic motor 9 by hydraulic tubing 7 delivering oils, and volume adjustable hydraulic pump 11 goes out rotating speed by the speed of changes in flow rate adjustment quantitative oil hydraulic motor 9, and constant displacement hydraulic motor 9 drives dead axle central gear 6 to rotate.There are two degrees of freedom in planet differential mechanism, gear ring 3 and planet carrier 1 are driving link, in the time that planet carrier 1 input speed changes, volume adjustable hydraulic pump 11 drives constant displacement hydraulic motor 9, constant displacement hydraulic motor 9 changes dead axle central gear 6 rotating speeds, the rotating speed of idle pulley 5 changes thereupon, then changes the rotating speed of the planet differential mechanism ring gear 3 being engaged with, and makes to send out sun gear 4 axles and maintains constant rotating speed (1500rpm).
Claims (1)
1. static-pressure differential speed regulation-type main transmission in wind generating set, comprise: planet carrier (1), planetary pinion (2), ring gear (3), sun gear (4), idle pulley (5), dead axle central gear (6), hydraulic tubing (7), fuel tank (8), constant displacement hydraulic motor (9), volume adjustable hydraulic pump (11), output gear (12), the output shaft (13) of planet differential, tachogenerator (14), variable displacement pump input shaft (15), input gear (16), actuator (17), electronic control unit (18), it is characterized in that, the upper sun gear (4) of installing of output shaft (13) of planet differential, sun gear (4) engages with planetary pinion (2) by planet carrier (1), planetary pinion (2) is enclosed within ring gear (3), ring gear engages with idle pulley (5), dead axle central gear (6) is arranged on the output shaft (13) of planet differential, and engages with idle pulley, dead axle central gear is connected with constant displacement hydraulic motor (9), constant displacement hydraulic motor one end is communicated with fuel tank (8) by hydraulic tubing (7), and the constant displacement hydraulic motor the other end is communicated with volume adjustable hydraulic pump (11) by hydraulic tubing, volume adjustable hydraulic pump is connected with actuator (17), and is connected with variable displacement pump input shaft (15), input gear (16) is installed on variable displacement pump input shaft, and input gear engages with the output gear (12) of the output shaft one end that is arranged on planet differential, tachogenerator (14) is installed on output shaft one end of planet differential and blower fan, tachogenerator is connected with electronic control unit (18), electronic control unit is connected with actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762700.5U CN203685496U (en) | 2013-11-28 | 2013-11-28 | Main transmission device of static-pressure differential speed regulation type wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762700.5U CN203685496U (en) | 2013-11-28 | 2013-11-28 | Main transmission device of static-pressure differential speed regulation type wind turbine generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685496U true CN203685496U (en) | 2014-07-02 |
Family
ID=51007407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320762700.5U Expired - Fee Related CN203685496U (en) | 2013-11-28 | 2013-11-28 | Main transmission device of static-pressure differential speed regulation type wind turbine generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685496U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896043A (en) * | 2015-05-14 | 2015-09-09 | 上海宇航系统工程研究所 | Two-input rotational differential driving device |
| CN105090427A (en) * | 2015-09-09 | 2015-11-25 | 长安大学 | Mechanical-hydraulic hybrid stepless speed change device with secondary elements |
| CN107422655A (en) * | 2016-05-24 | 2017-12-01 | 上海凡宜科技电子有限公司 | Conveying device |
| CN107516971A (en) * | 2017-08-24 | 2017-12-26 | 中国联合工程公司 | Trunnion axis energy by ocean current generator and control process based on electromechanical differential system speed change |
| CN109209784A (en) * | 2018-09-30 | 2019-01-15 | 浙江大学 | A kind of efficient wind generator system and its control method |
| CN113389860A (en) * | 2021-05-31 | 2021-09-14 | 浙江师范大学 | Passive constant-speed transmission control system and constant-speed control method for wind generating set |
-
2013
- 2013-11-28 CN CN201320762700.5U patent/CN203685496U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896043A (en) * | 2015-05-14 | 2015-09-09 | 上海宇航系统工程研究所 | Two-input rotational differential driving device |
| CN105090427A (en) * | 2015-09-09 | 2015-11-25 | 长安大学 | Mechanical-hydraulic hybrid stepless speed change device with secondary elements |
| CN107422655A (en) * | 2016-05-24 | 2017-12-01 | 上海凡宜科技电子有限公司 | Conveying device |
| CN107516971A (en) * | 2017-08-24 | 2017-12-26 | 中国联合工程公司 | Trunnion axis energy by ocean current generator and control process based on electromechanical differential system speed change |
| CN109209784A (en) * | 2018-09-30 | 2019-01-15 | 浙江大学 | A kind of efficient wind generator system and its control method |
| CN113389860A (en) * | 2021-05-31 | 2021-09-14 | 浙江师范大学 | Passive constant-speed transmission control system and constant-speed control method for wind generating set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203685496U (en) | Main transmission device of static-pressure differential speed regulation type wind turbine generator set | |
| CN201474863U (en) | Variable-pitch variable-speed wind turbine | |
| CN101555871B (en) | Variable pitch and variable speed wind generating set | |
| CN102852726B (en) | Gird-connected wind power generation system with self-adaptive speed regulation composite transmission based on differential mechanism | |
| CN103277252B (en) | Control method of grid connected wind turbine | |
| CN106949018B (en) | A kind of compound main transmission of wind energy conversion system mechanical electromagnetic | |
| CN102506017A (en) | Static-pressure differential speed regulation-type main transmission in wind generating set | |
| CN102278284B (en) | Automatic governing device for wind driven generator load | |
| CN105003389A (en) | Offshore wind power and ocean tidal current energy combined power generation device | |
| CN102678876B (en) | Wind power generation hydraulic control shifting voltage stabilizer | |
| CN107327368B (en) | A kind of all-hydraulic wind-tidal mixing generating equipment | |
| CN202228266U (en) | Wind collection type wind generating set | |
| CN202768296U (en) | Self-adaption speed regulating mechanism for transmission of grid-tied wind driven generator set | |
| CN107345508A (en) | A kind of electricity-generating method of reciprocating screw rod driving pendulum reciprocally swinging | |
| CN104696170A (en) | Hybrid transmission wind power generation system | |
| WO2012174684A1 (en) | Electric continuously variable large synchronous wind power generator set | |
| CN201802564U (en) | Half direct-driving and full-power wind power generating device | |
| CN104265575A (en) | Magnetic driving variable-speed control type wind power generator set and maximum wind energy capture method thereof | |
| CN104296909A (en) | Power recovery type efficiency testing device for hydraulic wind-driven generator | |
| CN204984728U (en) | Power generation facility can be united to marine wind power and ocean trend | |
| CN202832968U (en) | Electro-hydraulic servo synchronizer of megawatt wind turbine generator set | |
| CN103591264B (en) | The speed change input constant speed output unit that guide vane adjustable torque-converters regulates | |
| CN107269467B (en) | A kind of control method of all-hydraulic wind-tidal mixing generating equipment | |
| CN102235301A (en) | Mechanical constant speed wind turbine | |
| CN202579060U (en) | Speed adjusting device with variable speed ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20191128 |