CN203879677U - Float-type wave energy power generation system capable of preventing looseness of cables - Google Patents
Float-type wave energy power generation system capable of preventing looseness of cables Download PDFInfo
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- CN203879677U CN203879677U CN201420100711.1U CN201420100711U CN203879677U CN 203879677 U CN203879677 U CN 203879677U CN 201420100711 U CN201420100711 U CN 201420100711U CN 203879677 U CN203879677 U CN 203879677U
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- China
- Prior art keywords
- wave energy
- float
- driving wheel
- hawser
- transmission shaft
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The utility model relates to a float-type wave energy power generation system capable of preventing the looseness of cables. The system comprises four wave energy absorbing devices (16) and a wave energy conversion device (15). The four wave energy absorbing devices (16) are arranged in a diagonal manner along the heading direction of waves, and are connected in series through a first transmission shaft (12), wherein the distance between adjacent two absorbing devices is 1/4 the wavelength of sea waves. The wave energy absorbing device includes a driving wheel (4) fixed on the transmission shaft, a float (10), a counterweight (9), and two upper rotating wheels and two lower rotating wheels fixed on a frame. The periphery of the driving wheel (4) is provided with two grooves which are used for supporting two cables, respectively. One cable passes the two upper rotating wheels (5, 7) and the driving wheel (4), while the other cable has one end fixed at the lower end of the float (10), passes one lower rotating wheel (8) at the downside, passes the driving wheel (4) in an intersection manner, and then passes the other rotating wheel (6) at the downside. The float-type wave energy power generation system provided by the utility model is capable of utilizing the wave energy and generating stable and high-quality three-phase alternating electricity.
Description
Affiliated technical field
The utility model belongs to wave power generation field, is specifically related to a kind of Wave energy generating system.
Background technique
Global problem of energy crisis becomes increasingly conspicuous, and fossil energy reserves can not meet global huge energy consumption requirement.Meanwhile, environmental pollution problem is on the rise, the rising of Global Temperature, requires countries in the world to reduce the use of the non-renewable energy resources such as fossil.Ocean wave energy has obtained the attention of countries in the world as a kind of clean renewable energy sources.There is the shore line of km more than 18,000 in China, according to calculating, if the ocean energy will be possible to use is converted into electric energy, the electric power that 1.5 hundred million kW approximately can be provided, the twice that is equivalent to the current electric motor power of China is many, therefore develops situation and needs that wave-activated power generation technology is applicable to China.Wave-energy power generation technology is by wave energy absorbing device, and first wave energy is converted to mechanical energy, then converts electric energy to.China has successfully developed the wave-type electric generator such as oscillaton water column type and poly-ripple reservoir formula, and some wave-activated power generation technology have even reached advanced international standard.But above-mentioned existing device or higher to geographical status requirement, or apparatus structure more complicated causes the maintenance of system and builds more difficult.At present some scientists have proposed some other float type wave-type electric generator, even but have in the situation of wave, also mostly there is the discontinuous situation of output electric energy.
Model utility content
The utility model, for above problem, provides a kind of device that utilizes wave energy power generation, and this device is intended by fairly simple structure and parts, utilizes wave energy to produce stable and the higher threephase AC of quality.To achieve these goals, the technical solution of the utility model is as follows:
A kind of anti-hawser relaxed type float type Wave energy generating system, comprise 4 wave energy absorption plants (16) and 1 Wave energy converter (15), it is characterized in that, 4 wave energy absorption plants (16) distribute by an oblique word along wave progresses direction, with connecting together by the first transmission shaft (12), adjacent device is at a distance of 1/4 wave wavelength, described wave energy absorption plant comprises the driving wheel (4) being fixed on transmission shaft, float (10), counterbalance (9) and be fixed on support two upper roulette wheels (5, 7) and two lower roulette wheels (6, 8), be provided with twice and be respectively used to support the groove of first hawser and second hawser in the periphery of described driving wheel (4), two described upper roulette wheels (5, 7) lay respectively at the both sides of driving wheel (4), first hawser is around two upper roulette wheels (5, 7) and on one groove of driving wheel (4), one end of described first hawser connects float (10) top, the other end connects counterbalance (9) top, two lower roulette wheels (6,8) lay respectively at two upper roulette wheels (5,7) bottom, one end of second hawser is fixed on float (10) lower end, walk around roulette wheel (8) from lower end, intersect and walk around driving wheel (4) again, again after roulette wheel another (6) is walked around in lower end, the other end is fixed on the below of counterbalance (10) afterwards, described Wave energy converter (15) comprises two moving ratchets (3), step-up gear (2), permanent magnet generator (1), described the first transmission shaft (12) is connected with two moving ratchets (3), the bidirectional rotation of driving wheel is converted into the unidirectional rotation of ratchet, two moving ratchets (3) are connected with step-up gear (2) by second driving shaft (13) again, the low-speed motion of transmission shaft (13) is converted into the High Rotation Speed of step-up gear (2) internal gear, high gear in step-up gear is connected with generator amature by the first transmission shaft (12), drive permanent magnet generator (1) generating.
Wherein, the quality of counterbalance is no more than the half of float conventionally.
The device that utilizes wave energy power generation the utility model proposes, substantive distinguishing features is: by moving up and down of float and weight, produce moment on driving wheel, thereby drive generator generating.In the time that there is wave on sea, the fluctuating on sea can make float change at undersurface volume, and then buoyancy changes, thereby produces moment on driving wheel, the relative movement of seawater and float simultaneously also can give float certain thrust, thereby on driving wheel, generates moment.Moment on driving wheel drives mag-dynamo rotation, here will it be one group at a distance of 4 wave energy absorption plants parallel connection of 1/4 wave wavelength along wave direction of advance, in order to produce substantially invariable torque, press thereby produce galvanic current, the threephase AC that produces 50Hz through electric energy processing circuit is grid-connected.Technique effect of the present utility model is as follows:
1) system architecture is simple, and equipment is convenient to installation and maintenance, and can prevent that hawser is lax.
2) can steadily export torque when many wave energy absorption plant paired runnings, make to export electric energy continuous, and be produced on a large scale, cost is lower, is beneficial to extensive generating.
3)), because output voltage is continuously with steady, make mag-dynamo send electric energy subsequent treatment fairly simple, can only have DC-AC link, more reliable, cost-saving.
4) this system is not only applicable to direct grid-connected generating, is also applicable to powering separately to the island away from land, and practicability is stronger, and application area is wider.
Brief description of the drawings
Fig. 1 is float type Wave energy converting device structural representation.
In figure, the 1st, mag-dynamo, the 2nd, speed-change gear box, the 3rd, two moving ratchets, the 4th, driving wheel, 5,6,7, the 8th, the roulette wheel that position is fixing, the 9th, counterbalance, the 10th, float, 11 is sea, 12,13, the 14th, transmission shaft.
Fig. 2 is the wave energy absorption plant of 4 1/4 wave wavelength of meeting schematic diagram in parallel.
In figure, the 15th, Fig. 1 intermediate wave energy conversion portion, 16 is Fig. 1 intermediate wave energy absorption portion.
Fig. 3 is the counter structure schematic diagram of electric energy processing circuit.
In figure, the 17th, control centre, the 18th, transformer, the 19th, load.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
Anti-hawser relaxed type float type Wave energy generating system of the present utility model mainly comprises 4 float type wave energy absorbing devices 16 and float type Wave energy converting device 15 two-part.
Float type wave energy absorbing device is as shown in the wave energy absorption portion in Fig. 1.Counterbalance 9 and float 10 link together by two hawser ropes, hawser forms an annular cableway by four fixing roulette wheel 5,6,7,8 and driving wheels 4 in position, one hawser connects counterbalance 9 and float 10 from above, another road hawser connects counterbalance 9 and float 10 from below.Be provided with in the periphery of driving wheel 4 groove (not shown in FIG.) that twice are respectively used to support two hawsers.Fig. 1 is float type Wave energy converting device structural representation.Along with the fluctuating of wave, float can move up and down, and hawser drives driving wheel 4 to rotate.Driving wheel 4 is connected with two moving ratchets 3 by transmission shaft 14, the bidirectional rotation of driving wheel is converted into the unidirectional rotation of ratchet, ratchet is connected with step-up gear 2 by a transmission shaft 13 again, the low-speed motion of transmission shaft 13 is converted into the High Rotation Speed of inner gear of the gear box, high gear in step-up gear is connected with generator amature by transmission shaft 12, drives permanent magnet generator 1 to generate electricity.Wave energy converting device of the present utility model in fact also comprises support not shown in FIG., and for fixing 4 roulette wheels, transmission shaft is also connected with support by bearing.4 roulette wheels, comprise two upper roulette wheels 5,7 and two lower roulette wheels 6,8.Two upper roulette wheels 5,7 lay respectively at the both sides of driving wheel 4, and first hawser is on one groove of two upper roulette wheels 5,7 and driving wheel 4, and one end of first hawser connects float 10 tops, and the other end connects counterbalance 9 tops; Two lower roulette wheels 6,8 lay respectively at two upper roulette wheels 5,7 bottom, one end of second hawser is fixed on float 10 lower ends, walk around roulette wheel from lower end, intersect and walk around driving wheel 4 again, walk around afterwards another after roulette wheel from lower end again, the other end is fixed on the below of counterbalance 10.
The quality of counterbalance is less than the quality of float, and quality is no more than the half of float conventionally, is all cylindrical in structure.
See figures.1.and.2,4 wave energy absorption plants 16 at a distance of 1/4 wave wavelength are distributed by an oblique word along wave progresses direction in parallel, then form a set of Wave energy generating system by Wave energy converter 15 and follow-up electric treatment unit, as shown in Figure 3.Electric treatment unit: be made up of Buck-Boost buck conversion circuit and DC-AC inverter circuit, this part is responsible for changing direct current into 50Hz Ac.DC-AC inverter comprises voltage stabilizer and inverter, and voltage stabilizer part realizes by Buck-Boost buck conversion circuit, and inverter is realized by three phase full bridge inverter circuit.The Buck-Boost circuit being made up of T0, L0 and D0 can make system have adaptive voltage raising and reducing function by the ON time of controlling T0, in the time detecting that generator outlet voltage is greater than rating value, the dutycycle of the driving signal by reducing T0 is reduced to rating value; Otherwise, detect when generator outlet voltage is less than rating value, make output voltage be elevated to rating value by the dutycycle of driving signal that increases T0, thereby ensure the voltage substantially constant at capacitor C 2 two ends.The controlled inverter circuit of T1, T2, T3, T4, T5 and T6 composition is responsible for DC bus-bar voltage to be converted into the Ac of power frequency 50Hz, and in Fig. 3, the conducting of all switching tubes is controlled by control centre 17.The Ac of the power frequency 50Hz being exported by net side inverter circuit will directly be powered or carry out power transmission by grid-connected switching circuit S to electrical network/micro-electrical network to load 19 through the transformer 18 in Fig. 3.
Wave energy absorption portion of the present utility model is by driving wheel 4, and the interaction of fast pulley 5,6,7,8 and relevant hawser can effectively prevent the generation of hawser relaxed condition.Concrete, when the cable slack of the upper half-turn of hypothesis, on circulatory motion track, float reduces to the counterclockwise distance of counterbalance, and clockwise hour hands are apart from increase, but lower branch cable length is certain, and therefore this situation can not occur; In like manner, lower branch hawser relaxation cases also can not occur, thereby has solved traditional float type hawser relaxation problem.The torque difference providing when diverse location while moving up and down due to float, therefore the torque ripple that an independent Wave energy converter provides is very large, generator output voltage fluctuation is also larger, by by 4 along wave direction of advance at a distance of the wave energy absorption plant parallel connections of 1/4 wave wavelength, can provide substantially invariable driving torque to mag-dynamo, make its stator voltage basicly stable, process and reduce difficulty for follow-up electric energy, to improve the quality of power supply.
Claims (1)
1. an anti-hawser relaxed type float type Wave energy generating system, comprise 4 wave energy absorption plants (16) and 1 Wave energy converter (15), it is characterized in that, 4 wave energy absorption plants (16) distribute by an oblique word along wave progresses direction, with connecting together by the first transmission shaft (12), adjacent device is at a distance of 1/4 wave wavelength, described wave energy absorption plant comprises the driving wheel (4) being fixed on transmission shaft, float (10), counterbalance (9) and be fixed on support two upper roulette wheels (5, 7) and two lower roulette wheels (6, 8), be provided with twice and be respectively used to support the groove of first hawser and second hawser in the periphery of described driving wheel (4), two described upper roulette wheels (5, 7) lay respectively at the both sides of driving wheel (4), first hawser is around two upper roulette wheels (5, 7) and on the first groove of driving wheel (4), one end of described first hawser connects float (10) top, the other end connects counterbalance (9) top, two lower roulette wheels (6,8) lay respectively at two upper roulette wheels (5,7) bottom, one end of second hawser is fixed on float (10) lower end, walk around roulette wheel (8) from lower end, intersect and walk around driving wheel (4) again, again after roulette wheel another (6) is walked around in lower end, the other end is fixed on the below of counterbalance (10) afterwards, described Wave energy converter (15) comprises two moving ratchets (3), step-up gear (2), permanent magnet generator (1), described the first transmission shaft (12) is connected with two moving ratchets (3), the bidirectional rotation of driving wheel is converted into the unidirectional rotation of ratchet, two moving ratchets (3) are connected with step-up gear (2) by second driving shaft (13) again, the low-speed motion of transmission shaft (13) is converted into the High Rotation Speed of step-up gear (2) internal gear, high gear in step-up gear is connected with generator amature by the first transmission shaft (12), drive permanent magnet generator (1) generating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100711.1U CN203879677U (en) | 2014-03-06 | 2014-03-06 | Float-type wave energy power generation system capable of preventing looseness of cables |
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| CN201420100711.1U CN203879677U (en) | 2014-03-06 | 2014-03-06 | Float-type wave energy power generation system capable of preventing looseness of cables |
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| CN203879677U true CN203879677U (en) | 2014-10-15 |
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| CN201420100711.1U Expired - Fee Related CN203879677U (en) | 2014-03-06 | 2014-03-06 | Float-type wave energy power generation system capable of preventing looseness of cables |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867379A (en) * | 2014-03-06 | 2014-06-18 | 天津大学 | Cable slack preventing float-type wave energy power generation system |
| CN111425333A (en) * | 2020-04-14 | 2020-07-17 | 镇江市高等专科学校 | Water wave power generation equipment |
| CN111946535A (en) * | 2020-08-25 | 2020-11-17 | 何伟周 | Energy collecting device utilizing ocean energy |
| CN113669192A (en) * | 2021-09-06 | 2021-11-19 | 哈尔滨工业大学 | Ocean buoyancy energy storage system |
-
2014
- 2014-03-06 CN CN201420100711.1U patent/CN203879677U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867379A (en) * | 2014-03-06 | 2014-06-18 | 天津大学 | Cable slack preventing float-type wave energy power generation system |
| CN111425333A (en) * | 2020-04-14 | 2020-07-17 | 镇江市高等专科学校 | Water wave power generation equipment |
| CN111946535A (en) * | 2020-08-25 | 2020-11-17 | 何伟周 | Energy collecting device utilizing ocean energy |
| CN113669192A (en) * | 2021-09-06 | 2021-11-19 | 哈尔滨工业大学 | Ocean buoyancy energy storage system |
| CN113669192B (en) * | 2021-09-06 | 2022-06-28 | 哈尔滨工业大学 | Ocean buoyancy energy storage system |
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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 |
Granted publication date: 20141015 Termination date: 20150306 |
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| EXPY | Termination of patent right or utility model |