CN103277256B - Wind power system based on complex speed-up mechanism - Google Patents
Wind power system based on complex speed-up mechanism Download PDFInfo
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- CN103277256B CN103277256B CN201310212170.1A CN201310212170A CN103277256B CN 103277256 B CN103277256 B CN 103277256B CN 201310212170 A CN201310212170 A CN 201310212170A CN 103277256 B CN103277256 B CN 103277256B
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The invention discloses a wind power system based on a complex speed-up mechanism. The wind power system comprises a wind-to-mechanical energy conversion system, a mechanical-to-hydraulic energy conversion system, a hydraulic energy storage mechanism, a hydraulic-to-electric energy conversion system, and a grid-connected system. The wind-to-mechanical energy conversion system comprises two mutually meshing gear systems, and one gear system is fitted to the mechanical-to-hydraulic energy conversion system and used for converting mechanical energy into hydraulic energy. The wind power system based on the complex speed-up mechanism has the advantages that a hydraulic pump is driven by the novel gear speed-up mechanism to convert wind energy into hydraulic energy, efficiency of a gearbox is improved, mounting and maintenance costs are saved effectively, hydraulic energy is converted to electric energy through a variable displacement motor and a generator unit, and accordingly generator speed is stabilized and power generation quality is improved.
Description
Technical field
The present invention relates to and a kind of new gear speed increasing mechanism, particularly a kind of wind-power generating system based on compound speed increasing mechanism, belongs to Oversea wind power generation field.
Background technique
Because the day by day exhausted of fossil fuel and the mankind are to the pollution of environment, the exploitation of new energy and renewable energy sources obtains to be paid close attention to widely.Wind energy, as a kind of renewable energy sources, develops rapidly because the advantages such as it is safe, clean, storage volume is huge obtain.
Traditional wind generating unit adopts an energy-conversion technique that wind energy is converted into mechanical energy by gear speeder, then drives generator to generate electricity.Because traditional gear speed increasing mechanism is bulky, the difficult unstability of adding nature wind speed of installation and maintenance, result in a series of problem.There is following problem in conventional wind generating as can be seen here: traditional gear speed increasing mechanism volume weight is huge, expensive, installation and maintenance spend a large amount of manpower and materials.When wind speed is lower, because blade can only rotate with slower speed, and generator needs higher rotating speed, and this just needs a set of speed increasing mechanism, and often speed increasing mechanism price is very expensive, this cost just increased.Due to the instability of natural wind, traditional blower fan gear up, than being constant, which results in generator speed not steady, thus have impact on the quality of generating.
Summary of the invention
For the problems referred to above that wind generating unit in prior art exists, the i.e. problem of gear-box inefficiency, installation and maintenance high cost, generating low quality, the invention provides a kind of wind-power generating system based on compound speed increasing mechanism, drive oil hydraulic pump to carry out the conversion of wind energy to hydraulic energy by new gear speed increasing mechanism, realize the conversion of hydraulic energy to electric energy by variable displacement motor, generator set more simultaneously.
Technological scheme of the present invention is:
A kind of wind-power generating system based on compound speed increasing mechanism, comprise wind energy to mechanical energy conversion system, mechanical energy to hydraulic energy converting system, hydraulic accumulation energy mechanism, hydraulic energy to electric energy conversion system, grid-connected system, described wind energy comprises two cover pitch wheel systems to mechanical energy conversion system, wherein set of gears system matches to hydraulic energy converting system with described mechanical energy, for mechanical energy is converted to hydraulic energy.
Further, described wind energy comprises air guide sleeve, driving gear front cover, clamping panel, driven gear, driving gear, driving gear rear end cover, center multidiameter shaft, cabinet, empennage, pylon, bearing, blade to mechanical energy conversion system; Described air guide sleeve is fixedly installed on the front end of center multidiameter shaft; The rear end of air guide sleeve is provided with and air guide sleeve driving gear front cover separately, the driving gear be fixedly connected with driving gear rear end cover with driving gear front cover is respectively provided with between driving gear front cover and driving gear rear end cover, the multidiameter shaft activity of described center is through driving gear front cover and driving gear rear end cover, driving gear, driving gear front cover, driving gear rear end cover can be rotated around center multidiameter shaft, and described blade is fixedly connected with driving gear; Described driven gear and driven gear central shaft are connected, described driven gear central shaft center multidiameter shaft of having mercy on is provided with several, the distance of driven gear central shaft and center multidiameter shaft ensures that the gear teeth of driving gear and driven gear engage each other, the clamping panel movable supporting on the multidiameter shaft of center is located at driven gear central shaft two ends by fixed cover, drive driven gear central shaft to rotate when driven gear rotates; Described cabinet fixed cover is located at multidiameter shaft rear, center, and empennage is connected with the rear end of center multidiameter shaft, and described pylon is arranged at below cabinet, and the bearing freely turned to for blower fan is equipped with in the joint of pylon and cabinet.
Further, described center multidiameter shaft is provided with boss, fit in the right side of described driving gear front cover and the left side of center multidiameter shaft boss, and retain 2-3mm surplus, fit with air guide sleeve on the left of described driving gear front cover, same reservation 2-3mm surplus, for ensureing that driving gear, driving gear front cover and driving gear rear end cover Zhi Rao center multidiameter shaft rotate.
Further, described mechanical energy comprises driven gear central shaft, coupling, oil hydraulic pump, inflow pipeline, flowline, one-way valve to hydraulic energy converting system; Described oil hydraulic pump is connected with driven gear central shaft by coupling, one end of inflow pipeline is connected with the filler opening of oil hydraulic pump, and the other end is connected with fuel tank, and inflow pipeline is provided with one-way valve, one end of flowline is connected with the oil outlet of oil hydraulic pump, and the other end is connected with hydraulic accumulation energy mechanism.
Further, described hydraulic accumulation energy mechanism is hydraulic energy storage device, and the filler opening of described hydraulic energy storage device is connected with flowline.
Further, described hydraulic energy comprises speed control unit, variable hydraulic motor, generator set, back electrical energy unit to electric energy conversion system, the outlet of described hydraulic accumulation energy mechanism is connected with variable hydraulic motor through speed control unit, speed control unit is used for the rotational speed being carried out controlled variable oil hydraulic motor by the discharge capacity of controlled variable oil hydraulic motor, the other end of variable hydraulic motor is connected with generator set, and generator set is connected with speed control unit by back electrical energy unit.
Further, the electric energy that described generator set sends is connected with electrical network by described grid-connected system.
The invention has the beneficial effects as follows:
1, a kind of wind-power generating system based on compound speed increasing mechanism of the present invention drives oil hydraulic pump to carry out the conversion of wind energy to hydraulic energy by new gear speed increasing mechanism, improves the efficiency of gear-box, has effectively saved installation and maintenance cost;
2, a kind of wind-power generating system based on compound speed increasing mechanism of the present invention realizes the conversion of hydraulic energy to electric energy by variable displacement motor, generator set, makes generator speed steady, thus improves the quality of generating.
Accompanying drawing explanation
Fig. 1 is that the structure of a kind of wind-power generating system based on compound speed increasing mechanism of the present invention is always schemed;
Fig. 2 is the structural drawing of speed increasing mechanism;
Fig. 3 is hydraulic schematic diagram.
In figure: 1, air guide sleeve; 2, driving gear front cover; 3, oil hydraulic pump; 4, clamping panel; 5, driven gear; 6, driving gear; 7, driven gear central shaft; 8, screw; 9, driving gear rear end cover; 10, center multidiameter shaft; 11, cabinet; 12, empennage; 13, pylon; 14, bearing; 15, blade; 16, inflow pipeline; 17, flowline; 18, hydraulic energy storage device; 19, speed control unit 20, fuel tank; 21, variable hydraulic motor; 22, generator set; 23, back electrical energy unit; 24, coupling; 25, one-way valve.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The structure of a kind of wind-power generating system based on compound speed increasing mechanism of the present invention as shown in Figure 1, comprises wind energy to mechanical energy conversion system, mechanical energy to hydraulic energy converting system, hydraulic energy to electric energy conversion system, speed control unit, back electrical energy unit.
Wind energy transformation is mechanical energy to mechanical energy conversion system mainly through novel speed increasing mechanism by wind energy, from left to right comprises air guide sleeve 1, driving gear front cover 2, clamping panel 4, driven gear 5, driving gear 6, driving gear rear end cover 9, center multidiameter shaft 10, cabinet 11, empennage 12, pylon 13, swivel bearing 14, blade 15 successively.Air guide sleeve 1 is connected with center multidiameter shaft 10 by screw thread, (reserved 2-3mm) is fitted on the left of its right-hand member and driving gear 6 front cover, driving gear 6 and driving gear front cover 2, driving gear rear end cover 9 are connected by screw 8 and are enclosed within center multidiameter shaft 10, by air guide sleeve 1 and center multidiameter shaft 10 boss constant bearing.Blade 15 is affixed with driving gear 6.Driven gear 4 is connected with clamping panel 4 by driven gear central shaft 7.Clamping panel 4 is fastened on center multidiameter shaft 10, and driven gear 4 is fastened on driven gear central shaft 7.Empennage 12 and center multidiameter shaft 10 are threaded connection and fit with casing 11 back.Pylon 13 and cabinet 11, by being welded to connect, are equipped with bearing 14, freely turning to for blower fan below pylon 13 and cabinet 11 weld.When wind speed reaches threshold wind velocity, blade 15 rotarily drives driving gear 6 and together rotates with driving gear front and rear cover, drives driven gear 5 to rotate, thus completes wind energy to changes mechanical energy, also complete the requirement of speedup simultaneously by engagement.
Mechanical energy comprises driven gear central shaft 7, coupling 24, oil hydraulic pump 3, inflow pipeline 16, flowline 17, one-way valve 25 to hydraulic energy switching mechanism.Oil hydraulic pump 3 is connected with driven gear central shaft 7 by coupling 24, inflow pipeline 16 one end is connected with the filler opening of oil hydraulic pump 3, the other end is connected with fuel tank 20, one-way valve 25 is connected with inflow pipeline 16, flowline 17 one end is connected with the oil outlet of oil hydraulic pump 3, and the other end is connected with hydraulic accumulator 18 filler opening.The installation number of oil hydraulic pump 3 is relevant with driven gear number.When wind speed reaches threshold wind velocity, driven gear 5 is by driving gear 6 driven rotary, due to driven gear 4 and driven gear central shaft 7 consolidation, therefore driven gear central shaft 7 also rotates, and drives oil hydraulic pump 3 to work, thus complete rotating mechanical energy and change to hydraulic energy by coupling.
Hydraulic accumulation energy mechanism is the mechanism stored by the hydraulic energy of changes mechanical energy, comprises hydraulic energy storage device 18, speed control unit 19.Flowline 17 is connected with the filler opening of hydraulic energy storage device 18, and the oil outlet of hydraulic energy storage device 18 is connected with variable hydraulic motor 21 through speed control unit 19.Negotiation speed control unit 19 carrys out the discharge capacity of controlled variable oil hydraulic motor 21, thus the rotational speed of controlled variable oil hydraulic motor 21.
Hydraulic energy is device hydraulic energy being converted to firm power energy to electric energy conversion system, comprises variable hydraulic motor 21, generator set 22, back electrical energy unit 23.Variable hydraulic motor 21 filler opening is connected with the oil outlet of hydraulic energy storage device 18, and variable hydraulic motor 21 delivery outlet is connected with generator set 22.The electric energy that generator set 22 sends is connected with electrical network by grid-connecting apparatus.Hydraulic accumulation energy mechanism Negotiation speed control unit 19 provides high pressure oil to variable hydraulic motor 21, variable hydraulic motor 21 is rotated, thus drive electrical generators group 22 works, the electric energy sent feeds back to speed control unit 19 via back electrical energy unit 23, regulate the flow of hydraulic variable motor 21, thus control the rotating speed of generator set 22, improve the quality of generating.
When wind speed reaches threshold wind velocity, because driving gear 6 and blade 15 are connected by screw, together rotate, driven the rotation of driven gear 5, thus the oil hydraulic pump 3 be connected with gear shaft is worked, complete machinery speed increasing and hydraulic accumulation energy.Hydraulic accumulation energy mechanism provides high pressure oil to variable hydraulic motor 21, and variable hydraulic motor 21 is worked, thus has driven generator set 22 to work.The electric energy that generator set 22 sends is parallel on electrical network by grid-connecting apparatus, simultaneously by back electrical energy unit 23 by the back electrical energy that sends to speed control unit 19, control the discharge capacity of variable hydraulic motor 21, thus control the rotating speed of generator set 22, improve generating efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the wind-power generating system based on compound speed increasing mechanism, it is characterized in that: comprise wind energy to mechanical energy conversion system, mechanical energy to hydraulic energy converting system, hydraulic accumulation energy mechanism, hydraulic energy to electric energy conversion system, grid-connected system, described wind energy comprises two cover pitch wheel systems to mechanical energy conversion system, wherein set of gears system matches to hydraulic energy converting system with described mechanical energy, for mechanical energy is converted to hydraulic energy, described wind energy comprises air guide sleeve (1), driving gear front cover (2), clamping panel (4), driven gear (5), driving gear (6), driving gear rear end cover (9), center multidiameter shaft (10), cabinet (11), empennage (12), pylon (13), bearing (14), blade (15) to mechanical energy conversion system, described air guide sleeve (1) is fixedly installed on the front end of center multidiameter shaft (10), the rear end of air guide sleeve (1) is provided with and air guide sleeve (1) driving gear front cover (2) separately, the driving gear (6) be fixedly connected with driving gear rear end cover (9) with driving gear front cover (2) is respectively provided with between driving gear front cover (2) and driving gear rear end cover (9), described center multidiameter shaft (10) activity is through driving gear front cover (2) and driving gear rear end cover (9), make driving gear (6), driving gear front cover (2), driving gear rear end cover (9) can rotate around center multidiameter shaft (10), described blade (15) is fixedly connected with driving gear (6), described driven gear (5) and driven gear central shaft (7) are connected, described driven gear central shaft (7) is provided with several around center multidiameter shaft (10), driven gear central shaft (7) and the distance of center multidiameter shaft (10) ensure that driving gear (6) engages each other with the gear teeth of driven gear (5), clamping panel (4) movable supporting on center multidiameter shaft (10) is located at driven gear central shaft (7) two ends by fixed cover, drive driven gear central shaft (7) to rotate when driven gear (5) rotates, described cabinet (11) fixed cover is located at center multidiameter shaft (10) rear, empennage (12) is connected with the rear end of center multidiameter shaft (10), described pylon (13) is arranged at cabinet (11) below, and pylon (13) is equipped with the joint of cabinet (11) bearing (14) freely turned to for blower fan.
2. a kind of wind-power generating system based on compound speed increasing mechanism according to claim 1, it is characterized in that: described center multidiameter shaft (10) is provided with boss, fit in the right side of described driving gear front cover (2) and the left side of center multidiameter shaft (10) boss, and retain 2 ~ 3mm surplus, fit with air guide sleeve (1) in described driving gear front cover (2) left side, same reservation 2 ~ 3mm surplus, for ensureing that driving gear (6), driving gear front cover (2) and driving gear rear end cover (9) Zhi Rao center multidiameter shaft (10) rotate.
3. a kind of wind-power generating system based on compound speed increasing mechanism according to claim 1, is characterized in that: described mechanical energy comprises driven gear central shaft (7), coupling (24), oil hydraulic pump (3), inflow pipeline (16), flowline (17), one-way valve (25) to hydraulic energy converting system; Described oil hydraulic pump (3) is connected with driven gear central shaft (7) by coupling (24), one end of inflow pipeline (16) is connected with the filler opening of oil hydraulic pump (3), the other end is connected with fuel tank (20), inflow pipeline (16) is provided with one-way valve (25), one end of flowline (17) is connected with the oil outlet of oil hydraulic pump (3), and the other end is connected with hydraulic accumulation energy mechanism.
4. a kind of wind-power generating system based on compound speed increasing mechanism according to claim 1, is characterized in that: described hydraulic accumulation energy mechanism is hydraulic energy storage device (18), and the filler opening of described hydraulic energy storage device (18) is connected with flowline (17).
5. a kind of wind-power generating system based on compound speed increasing mechanism according to claim 1, it is characterized in that: described hydraulic energy comprises speed control unit (19) to electric energy conversion system, variable hydraulic motor (21), generator set (22), back electrical energy unit (23), the outlet of described hydraulic accumulation energy mechanism is connected with variable hydraulic motor (21) through speed control unit (19), speed control unit (19) is for carrying out the rotational speed of controlled variable oil hydraulic motor (21) by the discharge capacity of controlled variable oil hydraulic motor (21), the other end of variable hydraulic motor (21) is connected with generator set (22), generator set is connected with speed control unit (19) by back electrical energy unit (23).
6. a kind of wind-power generating system based on compound speed increasing mechanism according to claim 5, is characterized in that: the electric energy that described generator set (22) sends is connected with electrical network by described grid-connected system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310212170.1A CN103277256B (en) | 2013-05-31 | 2013-05-31 | Wind power system based on complex speed-up mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310212170.1A CN103277256B (en) | 2013-05-31 | 2013-05-31 | Wind power system based on complex speed-up mechanism |
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| CN103277256A CN103277256A (en) | 2013-09-04 |
| CN103277256B true CN103277256B (en) | 2015-07-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110905711B (en) * | 2019-12-11 | 2021-01-15 | 尚彦 | Automatic control system and automatic control method for water pumping and energy storage |
| CN112610409A (en) * | 2021-01-12 | 2021-04-06 | 王恩芽 | Speed-stabilizing and propeller-changing type wind driven generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2370614A (en) * | 2002-03-12 | 2002-07-03 | Peter Richards | Wind-driven power generating apparatus having an hydraulic turbine |
| CN101268275A (en) * | 2005-07-27 | 2008-09-17 | 弗兰克·麦克林蒂克 | Methods and apparatus for advanced wind turbine design |
| DE102008036100A1 (en) * | 2007-08-08 | 2009-02-12 | Rosenich, Stefan | Wind power plant has tower, wind wheel and generator, which is operated in motor operation and drives in operating condition of air compressor with electrical net energy |
| CN102141013A (en) * | 2011-03-10 | 2011-08-03 | 江苏大学 | Hydraulic constant-rotation speed output speed increaser for wind driven generating system |
| CN203297042U (en) * | 2013-05-31 | 2013-11-20 | 江苏大学 | Wind power generation system based on compound acceleration mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3822100B2 (en) * | 2001-12-21 | 2006-09-13 | 株式会社小松製作所 | Wind power generator |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2370614A (en) * | 2002-03-12 | 2002-07-03 | Peter Richards | Wind-driven power generating apparatus having an hydraulic turbine |
| CN101268275A (en) * | 2005-07-27 | 2008-09-17 | 弗兰克·麦克林蒂克 | Methods and apparatus for advanced wind turbine design |
| DE102008036100A1 (en) * | 2007-08-08 | 2009-02-12 | Rosenich, Stefan | Wind power plant has tower, wind wheel and generator, which is operated in motor operation and drives in operating condition of air compressor with electrical net energy |
| CN102141013A (en) * | 2011-03-10 | 2011-08-03 | 江苏大学 | Hydraulic constant-rotation speed output speed increaser for wind driven generating system |
| CN203297042U (en) * | 2013-05-31 | 2013-11-20 | 江苏大学 | Wind power generation system based on compound acceleration mechanism |
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