CN102678471B - Hydraulic speed-governing type wind power generation device with flywheel - Google Patents
Hydraulic speed-governing type wind power generation device with flywheel Download PDFInfo
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- CN102678471B CN102678471B CN201210193972.8A CN201210193972A CN102678471B CN 102678471 B CN102678471 B CN 102678471B CN 201210193972 A CN201210193972 A CN 201210193972A CN 102678471 B CN102678471 B CN 102678471B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a hydraulic speed-governing type wind power generation device with a flywheel, which comprises wind driven wind blade (10), the kinetic energy is transmitted to a hydraulic drive system (30) through a first drive system (70), the hydraulic drive system (30) drives a flywheel (21) in a flywheel system (20) to rotate through a second drive system (80), the flywheel (21) drives a generator (50) to rotate for generate power through a third drive system (90), and a control system controls the operating states of an oil supply system (40), the second drive system (80) and the third drive system (90). Through adoption of the technical scheme above, an ideal goal of wind power generation (namely, storing first and generating later, energy storing for future power generation, energy storage-peak clipping, and energy releasing-valley filling) is realized; meanwhile, the power generation device has the characteristics of simple structure, reasonable design, low cost and easy promotion, and is beneficial to overcoming two major obstacles (namely, full utilization of wind energy and cost reduction) which seriously restrict the development of wind power generation.
Description
Technical field
The present invention relates to power generating equipment, particularly for the electricity generating device of wind-power electricity generation.
Background technique
At present there are three large problems in constant frequency constant speed wind-driven generator, and the one, take the mode of rigidity speed change, not only complex structure, and differential is than limited; The 2nd, take the method for adjusting blade merit angle to deacclimatize wind-force, to trim the feet to fit the shoes, wind energy utilization is low, as mostly like this in horizontal axis wind-driven generator; The 3rd, adopt " hand over always and one hand over " power transformation power transmission mode, must use complicated and expensive power transformation technical equipment, as storage battery and inverter etc., by " variable-frequency variable-voltage-rectification " another mistake, to the process of " rectification-variable-frequency variable-voltage ", go to meet the requirement to synchronized transmission of electricity; Above problem causes that efficiency is low, cost is high; Although advanced frequency conversion constant speed wind-driven generator has major progress, still continues to use traditional rigidity transmission technology and equipment; , at aspects such as improving wind energy utilization efficiency, speed regulating method, energy storage method, reduction investment and operation cost, all there is significant improvement space in no matter existing constant frequency constant speed wind-driven generator, or more advanced frequency conversion constant speed wind-driven generator.Open source information is not seen the technological scheme that adopts Hydraulic Adjustable Speed, flywheel and variable-frequency constant speed generator or common generator three organic assembling.
Summary of the invention
The invention provides a kind of Hydraulic Adjustable Speed formula wind power plant, utilize the large mass flywheel constant speed running of the good oxen and horses property driving of hydraudynamic drive to drive again generator, realized the dreamboat of wind-power electricity generation: first hold afterwards and send out, save up strength to start out, accumulation of energy-peak clipping, release can-fill out paddy, solve the technical problem that in prior art, wind energy utilization is low and cost is high.
The present invention comprises the power-actuated fan blade of wind-engaging for this Hydraulic Adjustable Speed formula wind generating unit with flywheel providing is provided, fly wheel system, hydraulic transmission system, oil supply system, generator, control system, the first transmission system, the second transmission system and the 3rd transmission system, described fan blade passes to hydraulic transmission system by the first transmission system by kinetic energy, hydraulic transmission system rotates by the flywheel in the second transmission system drives fly wheel system, flywheel rotates generating by the 3rd transmission system drives generator again, oil supply system provides driving medium for hydraulic transmission system, control system is controlled oil supply system, the second transmission system and the 3rd transmission system working state.The first converting unit that it is liquid energy that described hydraulic transmission system comprises the kinetic transformation of the first transmission system transmission and liquid energy is reduced to mechanical kinetic energy and passes to the second converting unit of the second transmission system, the merit angle of described fan blade is fixed, by the constantly variation of making a concerted effort with wind-force and output torque.
Described hydraulic transmission system is fluid coupling, wherein the first converting unit is the pump impeller of fluid coupling, the turbine that described the second converting unit is fluid coupling, described hydraulic transmission system is fluid torque converter, wherein the first converting unit is the pump impeller of fluid torque converter, the turbine that described the second converting unit is fluid torque converter.Described fluid coupling or fluid torque converter are at least two covers, the import of every cover fluid coupling or fluid torque converter is equipped with the control switch that is controlled by control system, and the import of every cover fluid coupling or fluid torque converter is all communicated with the oil feed line in oil supply system by control switch.
Described the first converting unit is Hydraulic pump, described the second converting unit is fluid-power motor, described fluid-power motor is at least two, and the import of every fluid-power motor is equipped with the control switch that is controlled by control system, and the import of every fluid-power motor is all communicated with the output pipe of Hydraulic pump by control switch.
Described oil supply system comprises oil feed line, return line, oil feed pump and fuel tank, the oil inlet pipe of described oil feed pump inserts in described fuel tank, oil outlet tube is communicated with the import of each fluid coupling or fluid torque converter by oil feed line, the oil drain out of fluid coupling or fluid torque converter is communicated with fuel tank by return line, described oil supply system also comprises cooling unit, and this cooling unit is arranged on return line.
Described fly wheel system comprises flywheel, rotating mechanism and free wheel base, wherein flywheel is seated on described free wheel base by rotating mechanism, and can on free wheel base, rotate, described rotating mechanism is radial-thrust bearing, the inner ring of this radial-thrust bearing is fixed in the rotating shaft of free wheel base, outer ring is fixed in the endoporus of flywheel, or described rotating mechanism is annular orbit mechanism, comprises and is arranged on the roller of flywheel bottom surface and is arranged on the annular orbit on free wheel base end face.
Described the second transmission system comprises the first driving component and the second driving component that coordinates transmitting torque, described the first driving component is arranged on the output shaft of the second converting unit, described the second driving component is arranged on flywheel, described the first driving component is gear or friction wheel, and described the second driving component is gear ring or friction belt.
Described the 3rd transmission system comprises the 3rd driving component and the 4th driving component of the transmitting torque that cooperatively interacts, described the 3rd driving component is arranged on flywheel, described the 4th driving component is arranged on the input shaft of generator, described the 3rd transmission system also comprises the clutch mechanism of controlling separated between the 3rd driving component and the 4th driving component or contact, described the 4th driving component is gear or friction wheel, and described the 3rd driving component is gear ring or friction belt.
The present invention adopts above-mentioned technological scheme, realized the dreamboat of wind-power electricity generation: first hold afterwards and send out, save up strength to start out, accumulation of energy-peak clipping, release can-fill out paddy, have simple in structure, reasonable in design, cost is low, the feature of easily promoting, be conducive to overcome serious restriction wind-power electricity generation development two large obstacle---wind energy makes full use of and reduces costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of wind generating unit of the present invention.
Embodiment
In conjunction with above-mentioned accompanying drawing explanation specific embodiments of the invention.
Known in Fig. 1, this Hydraulic Adjustable Speed formula wind generating unit with flywheel comprises the power-actuated fan blade 10 of wind-engaging, fly wheel system 20, hydraulic transmission system 30, oil supply system 40, generator 50, control system 60, the first transmission system 70, the second transmission system 80 and the 3rd transmission system 90, described fan blade 10 passes to hydraulic transmission system 30 by the first transmission system 70 by kinetic energy, hydraulic transmission system 30 drives the flywheel 21 in fly wheel system 20 to rotate by the second transmission system 80, flywheel 21 drives generator 50 to rotate generating by the 3rd transmission system 90 again, oil supply system 40 provides driving medium for hydraulic transmission system 30, control system is controlled oil supply system 40, the second transmission system 80 and the 3rd transmission system 90 working staties.The present invention includes the power generation system being formed by major components such as control system, hydraulic transmission system, generator and flywheels, adopt the simpler firmer air-foil fan of structure to utilize a set of hydraulic transmission system of wind-drive, have that variable speed and gear ratio are high, variable torque and moment of torsion large, commutate fast, simple and reliable, cost is low and the feature such as flexible speed governing, according to wind-force variation and flywheel and engine condition, hydraulic transmission system can be adjusted moment of torsion and rotating speed flexibly; When wind-force increases suddenly, thereby hydraulic transmission system can moment overflow off-load be protected device security; Hydraulic transmission system first passes to wind energy horizontal accumulated energy flywheel, then drives generator to generate electricity by flywheel; Horizontal flywheel has large quality, low cost, non-maintaining feature, flywheel keeps rated speed so as to storing more energy at ordinary times, the partial loss of abrupt release energy supplement wind energy when wind-force weakens suddenly, the excess energy of can attracting deposit when wind-force increases suddenly also passes to the multiple electricity of generator, thereby performance " peak load shifting " effect, if reach moment overflow off-load in limited time on Speed of Reaction Wheels, thereby generating is played to good balance and buffer function, solved well a wind-force cataclysm difficult problem.
The blade of air-foil fan, without adjusting merit angle, therefore can design more simply firmlyer, also more efficient, control system is by according to the operating mode of fan blade, flywheel and generator, adjust flexibly hydraulic transmission system parameter, thus control load situation, and then drive flywheel and generator smooth working; Under the enough condition of wind energy, realize generator and operate at full capacity; When wind energy transfinites, control system will be controlled hydraulic transmission system unloading, protection equipment.When wind-force falls suddenly, it is generator makeup energy automatically that large mass flywheel utilizes its inertia, until continue to obtain supplementing of wind energy; When wind-force skyrockets, thereby large mass flywheel can absorb energy, play buffer function, thereby avoid because the adverse effect that wind-force cataclysm may cause generator.Generator recommend adoption vscf generator in the present invention, it has the feature of variable speed constant frequency, as long as flywheel running drives generator, no matter how speed changes, and always can steadily generate electricity and flow to safely electrical network; Auxiliary system comprises remote measurement remote sensing and remote control unit etc., because the present invention has the feature of Hydraulic Adjustable Speed and the running of large mass flywheel constant speed, also can adopt induction generator cheaply, be particularly suitable for voltage range to require very not strict ordinary family user to use.
Known in Fig. 1, described hydraulic transmission system 30 comprises the first converting unit 31 that kinetic transformation that the first transmission system 70 is transmitted is liquid energy and liquid energy is reduced to mechanical kinetic energy and passes to the second converting unit 32 of the second transmission system 80.The present invention adopts hydraulic transmission system, the first converting unit 31 transfers energy to the second converting unit 32 by liquid, owing to being by liquid transfer energy, like this, realize flexibly connecting of transmission system, and the oxen and horses characteristic of utilizing hydraulic transmission system, makes full use of the rotating speed that load regulates fan blade.In the present invention, hydraulic transmission system can adopt various ways, and wherein the first can adopt fluid coupling, and wherein the first converting unit 31 is pump impellers of fluid coupling, the turbine that described the second converting unit 32 is fluid coupling.The second adopts fluid torque converter, and wherein the first converting unit 31 is pump impellers of fluid torque converter, the turbine that described the second converting unit 32 is fluid torque converter.The third can adopt Hydraulic pump-fluid-power motor, and fluid coupling is same torque transfer, has high efficiency feature.Fluid torque converter also includes pump impeller and turbine, but owing to also thering is guide wheel, so it has the function of bending moment.And fluid-power motor direct drive mechanism especially starts and regulating load aspect early stage, fluid-power motor has more advantage.
Described fluid coupling or fluid torque converter are at least two covers, the import of every cover fluid coupling or fluid torque converter is equipped with the control switch 33 that is controlled by control system 60, the oil feed line 41 that the import of every cover fluid coupling or fluid torque converter is all communicated with in oil supply system 40 by control switch 33.Described fluid-power motor is at least two, and the import of every fluid-power motor is equipped with the control switch 33 that is controlled by control system 60, and the import of every fluid-power motor is all communicated with the output pipe of Hydraulic pump by control switch 33.
In the present invention, adopt many cover hydraulic transmission components, according to fan blade, flywheel and engine condition, by the control of control system, be chosen as one or more hydraulic transmission component oil-filled, increasing and decreasing load, reaches the object of speed governing.Hydraulic transmission component not only plays the effect of transferring energy, has also served as the role of clutch in this system.The present invention makes full use of wind energy, high efficiency, low cost, can be highly suitable for remote high mountain, desert or Jobs on the sea in the work of unmanned state, also can spread to numerous domestic consumers.Take Hydraulic pump-fluid-power motor as example, this hydraulic transmission system is comprised of a main oil pump and some oil hydraulic motor modules, fan shaft is directly connected with main oil pump shaft, and flywheel inner ring adopts planetary mode to connect respectively many group oil hydraulic motors, and is connected with variable speed constant frequency excitation alternator; According to the pressure of hydraulic oil and flow, determine how many oil hydraulic motors of switch, the excitation of variable-frequency constant speed generator is taken from electrical network by exciting transformer, generating frequency, voltage and the phase place of this advanced person's wind-driven generator always with electrical network automatic synchronization, keep stable, there is not step-out problem, whole system is very simple, moves very reliable.Without the frequency conversion of traditional constant-speed and constant-frequency wind-driven generator, rectification, battery charging and discharging, inversion, frequency conversion complex apparatus and the process such as grid-connected again, in addition, can obtain goodish sinewave output waveform; By above combination, wind energy utilization is higher, and comprehensive benefit is better.Below in conjunction with embodiment, be elaborated: when air-foil fan starts, will directly drive main oil pump, pump oil mass changes with wind speed, control system is by according to the operating mode of fuel delivery and flywheel, generator, thereby adjust flexibly hydraulic transmission system pressure and flow, control each oil hydraulic motor and open or stop and speed change, change moment of torsion, and then drive flywheel and generator; The quantity of opening or stopping by adjusting oil hydraulic motor, and adjust the modes such as speed change, change moment of torsion, add heavy load to control the flywheel maintenance rotating speed upper limit, cause that pressure adopts the mode of successive increase and decrease oil hydraulic motor quantity while changing, maintain system pressure substantially constant; During under special circumstances as fly wheel start-up, by controlling the way of fluid pressure and variable-flow, provide the power of low-speed big to export, realize speed change and become moment of torsion work; When wind-force surpasses the upper limit, hydraulic transmission system, by the off-load of overflow mode automatic safe, prevents blower fan and other system overloads.
Known in Fig. 1, described oil supply system 40 comprises oil feed line 41, return line 42, oil feed pump 43 and fuel tank 44, the oil inlet pipe 431 of described oil feed pump 43 inserts in described fuel tank 44, oil outlet tube 432 is communicated with the import of each fluid coupling or fluid torque converter by oil feed line 41, the oil drain out of fluid coupling or fluid torque converter is communicated with fuel tank 44 by return line 42, described oil supply system 40 also comprises cooling unit 45, this cooling unit 45 is arranged on return line 42, cooling unit, for cooling transmission oil, keeps the efficiency of transmission.
Known in Fig. 1, described fly wheel system 20 comprises flywheel 21, rotating mechanism 22 and free wheel base 23, and wherein flywheel 21 is seated on described free wheel base 23 by rotating mechanism 22, and can on free wheel base 22, rotate.Described rotating mechanism 22 is radial-thrust bearing, and the inner ring of this radial-thrust bearing is fixed in the rotating shaft of free wheel base 23, and outer ring is fixed in the endoporus of flywheel 21.Or described rotating mechanism 22Wei annular orbit mechanism, comprises and is arranged on the roller 221 of flywheel 21 bottom surfaces and is arranged on the annular orbit 222 on free wheel base 23 end faces.Thereby one of feature of the present invention comprises the quality of flywheel and has fully greatly larger inertia, and can prefabricated flywheel framework and the loading that adds of gathering materials on the spot and obtaining, the mass that the material of the cheapnesss such as employing concrete serves as gimbaled flywheel is fixed thereon, gather materials on the spot, one of feature of the present invention comprises that large mass flywheel and cushion cap serve as pedestal and can guarantee that blower fan is stable, therefore power generation system can also anchoring mode swim in the water surface and can not topple, flywheel adopted track support or adopts bearing fit with being connected of free wheel base, if use bearing, need to select the radial-thrust bearing that bearing capacity is large, because adopting means of rolling, flywheel is connected with bearing support, so, can reduce surface friction drag as far as possible, be convenient to start and keep running up etc., the present invention recommends track flywheel mode, flywheel turns round on circular orbit.This mode is relatively simple, without central thrust-bearing, the field that the condition that is particularly suitable for is poor, the more traditional flywheel of rotating speed of flywheel is much lower, linear velocity is controlled at below 100M/S, therefore, not high to the balance requirement of flywheel yet, can use a complete set of precast units, also can on frame type flywheel, make the counterweight members such as Quan piece or stone by loading field, these counterweight members can be gathered materials on the spot, and make, installation and maintenance is all very convenient, with low cost; (when flywheel mass is 1000kg, when linear velocity is 100m/s, potential energy can reach 980.7kw).Fly wheel system of the present invention comprises traditional high speed flywheel and the lower ring track formula flywheel of a kind of speed, the latter has the feature of the large quality of major diameter, can store more macro-energy, also there is the feature of controlled constant-speed operation, the adverse effect can the cataclysm of fine elimination wind-force generator being caused.And hydraulic transmission system can and keep its constant speed by flexible change moment of torsion speed Control flywheel speed at design wind-force section, the flywheel of large energy of having attracted deposit has " peak-clipping and valley-filling " function, therefore drive common asynchronous alternating current generator, without rectification transformer system and storage battery, also can meet the requirement of steady generating transmission of electricity.
Known in Fig. 1, described the second transmission system 80 comprises the first driving component 81 and the second driving component 82 that coordinates transmitting torque, and described the first driving component 81 is arranged on the output shaft of the second converting unit 32, and described the second driving component 82 is arranged on flywheel 21.Described the 3rd transmission system 90 comprises the 3rd driving component 91 and the 4th driving component 92 of the transmitting torque that cooperatively interacts, described the 3rd driving component 91 is arranged on flywheel 21, described the 4th driving component 92 is arranged on the input shaft of generator 50, and described the 3rd transmission system 90 also comprises the clutch mechanism 93 of controlling separated between the 3rd driving component 91 and the 4th driving component 92 or contact.Described the first driving component 81 and the 4th driving component 92 are gear or friction wheel, and described the second driving component 82 and the 3rd driving component 91 are gear ring or friction belt.Clutch mechanism 93 can be selected mechanical clutch, also can adopt fluid coupling, and system, according to Speed of Reaction Wheels situation, is determined load number, and when rotating speed is too high, several generators of multiple access, for controlling Speed of Reaction Wheels, meanwhile, improve generated energy.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the Hydraulic Adjustable Speed formula wind generating unit with flywheel, it is characterized in that: this device comprises the power-actuated fan blade of wind-engaging (10), fly wheel system (20), hydraulic transmission system (30), oil supply system (40), generator (50), control system (60), the first transmission system (70), the second transmission system (80) and the 3rd transmission system (90), described fan blade (10) passes to hydraulic transmission system (30) by the first transmission system (70) by kinetic energy, hydraulic transmission system (30) drives the flywheel (21) in fly wheel system (20) to rotate by the second transmission system (80), flywheel (21) drives generator (50) to rotate generating by the 3rd transmission system (90) again, oil supply system (40) provides driving medium for hydraulic transmission system (30), control system is controlled oil supply system (40), the second transmission system (80) and the 3rd transmission system (90) working state.
2. according to claim 1 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described hydraulic transmission system (30) comprises the first converting unit (31) that kinetic transformation that the first transmission system (70) is transmitted is liquid energy and liquid energy is reduced to mechanical kinetic energy and passes to second converting unit (32) of the second transmission system (80).
3. according to claim 2 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described hydraulic transmission system (30) is fluid coupling, wherein the first converting unit (31) is the pump impeller of fluid coupling, the turbine that described the second converting unit (32) is fluid coupling.
4. according to claim 2 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described hydraulic transmission system (30) is fluid torque converter, wherein the first converting unit (31) is the pump impeller of fluid torque converter, the turbine that described the second converting unit (32) is fluid torque converter.
According to described in claim 3 or 4 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described fluid coupling or fluid torque converter are at least two covers, the import of every cover fluid coupling or fluid torque converter is equipped with the control switch (33) that is controlled by control system (60), and the import of every cover fluid coupling or fluid torque converter is all communicated with the oil feed line (41) in oil supply system (40) by control switch (33).
6. according to claim 2 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described the first converting unit (31) is Hydraulic pump, described the second converting unit (32) is fluid-power motor.
7. according to claim 6 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described fluid-power motor is at least two, the import of every fluid-power motor is equipped with the control switch (33) that is controlled by control system (60), and the import of every fluid-power motor is all communicated with the output pipe of Hydraulic pump by control switch (33).
According to described in any one in claim 1 to 4,6 or 7 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described fly wheel system (20) comprises flywheel (21), rotating mechanism (22) and free wheel base (23), wherein flywheel (21) is seated in described free wheel base (23) above by rotating mechanism (22), and can be in the upper rotation of free wheel base (22).
9. according to claim 8 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described rotating mechanism (22) is radial-thrust bearing, the inner ring of this radial-thrust bearing is fixed in the rotating shaft of free wheel base (23), and outer ring is fixed in the endoporus of flywheel (21).
10. according to claim 10 with the Hydraulic Adjustable Speed formula wind generating unit of flywheel, it is characterized in that: described rotating mechanism (22) is annular orbit mechanism, comprises and is arranged on the roller (221) of flywheel (21) bottom surface and is arranged on the annular orbit (222) on free wheel base (23) end face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210193972.8A CN102678471B (en) | 2012-06-13 | 2012-06-13 | Hydraulic speed-governing type wind power generation device with flywheel |
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| CN201210193972.8A CN102678471B (en) | 2012-06-13 | 2012-06-13 | Hydraulic speed-governing type wind power generation device with flywheel |
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| CN102678471A CN102678471A (en) | 2012-09-19 |
| CN102678471B true CN102678471B (en) | 2014-02-12 |
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| CN102900625B (en) * | 2012-10-26 | 2015-09-30 | 浙江日月昇科技有限公司 | A kind of low wind speed wind power generator group of intelligent superhigh power fluid power transferring power |
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| CN2521418Y (en) * | 2001-11-28 | 2002-11-20 | 曲敬辉 | Wind power generator |
| CN101100980A (en) * | 2007-01-26 | 2008-01-09 | 高寰平 | Brand-new wind power generation system and mw-class large power energy storage method and device |
| CN101380905B (en) * | 2008-10-23 | 2011-10-12 | 余洪山 | Vehicle power generation system based on wind energy and fuel hybrid power and control method thereof |
| CN101968038B (en) * | 2009-07-27 | 2013-03-20 | 陈黎平 | Wind power generation device using springs for energy storage |
| CN102102634A (en) * | 2011-02-15 | 2011-06-22 | 天津大学 | Wind power generation equipment with automatic speed control device and automatic speed control method thereof |
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Effective date of registration: 20230909 Address after: No. 666 Xiangzhang West Avenue, Xicheng Street, Yongkang City, Jinhua City, Zhejiang Province, 321302 Patentee after: Zhejiang Hongyun Industrial Co.,Ltd. Address before: 518000, 6F, Building D, Fuyi Yaju, Zhenhua East Road, Futian District, Shenzhen City, Guangdong Province Patentee before: Huang Lusheng |
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