CN105626363A - Multi-dimensional single-buoy type wave energy converting device - Google Patents
Multi-dimensional single-buoy type wave energy converting device Download PDFInfo
- Publication number
- CN105626363A CN105626363A CN201610024501.2A CN201610024501A CN105626363A CN 105626363 A CN105626363 A CN 105626363A CN 201610024501 A CN201610024501 A CN 201610024501A CN 105626363 A CN105626363 A CN 105626363A
- Authority
- CN
- China
- Prior art keywords
- surface buoy
- buoy
- wave energy
- water surface
- damping body
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/188—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is flexible or deformable
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1869—Linear generators; sectional generators
- H02K7/1876—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts
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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 invention provides a multi-dimensional single-buoy type wave energy converting device. The multi-dimensional single-buoy type wave energy converting device comprises a water surface buoy and an underwater damper, wherein the water surface buoy is connected with the underwater damper by a return spring and a plurality of linear generators; the return spring is arranged in the middle while the linear generators are symmetrically arranged at two ends of the water surface buoy; an anchoring unit for positioning is arranged on the lower part of the underwater damper; and a rectifying connection unit is arranged in the water surface buoy. Along with waving of sea wave, the water surface buoy performs multi-degree-of-freedom movement such as heaving and pitching relative to the underwater damper by using a point at which the water surface buoy is connected with the return spring as the center, so that the linear generators are driven to generate power; and the power is treated through the rectifying connection unit so that continuous and stable electric energy is output. The linear generators are symmetrically arranged at two ends of the lower part of the water surface buoy, energy of the multi-degree-of-freedom movement such as heaving and pitching of the buoy can be obtained, and wave energy power generation efficiency is improved greatly. The return spring is adopted, so that the adaptability of the device to different sea conditions is also improved.
Description
Technical field
The present embodiments relate to Wave energy converter field, particularly relate to a kind of various dimensions monobuoy formula Wave energy converting device.
Background technology
Wave energy is the clean reproducible energy of a kind of great future, there is the advantage that energy figure is good, reserves are big, widely distributed, its exploitation are significant for Promote Sustainable Development, marine resources development etc., caused concern and the research of the many coastal states in the world and international organization. In China, national energy development strategy has been listed in tracking and research and development to the evaluation and exploration technology of wave energy in.
Oscillating float type is usually one and puts absorption Wave energy converting device, is study one of the most extensive, development prospect is best wave energy switch technology at present, can be divided into bank based devices, offshore device and offshore device three major types according to the difference of installation site. Bank based devices generally relies on seashore or direct mounting arrangements by the sea, because the requirement of geographical position particularity, installs so being less able to Batch Design. Installation region is required less-restrictive by offshore device and offshore device, is suitable to batch and arranges, especially offshore device, it is possible to catch more profundal zone energy.
Oscillating float type device is generally made up of two large divisions: dynamic buoyancy aid and quiet buoyancy aid, dynamic buoyancy aid is made up of one or more buoyancy aid, float on corrugated, the carrier assembled as wave energy and absorb, quiet buoyancy aid is generally constituted the stabilising arrangement as whole system by a buoyancy aid, some device being applied to the shallow water along the coast does not have quiet buoyancy aid, and dynamic buoyancy aid is connected with seabed by connecting elements and plays Stabilization. The active force that dynamic buoyancy aid is certain is given in the undulatory motion of wave so that dynamic buoyancy aid is along with wave motion, and wave energy is assembled kinetic energy and the potential energy of catching and be converted into self by dynamic buoyancy aid. Device is generally adopted mechanical type or fluid pressure type PTO system (PowerTake-offSystem, energy extraction system), its effect is the mechanical energy of floating motion to be extracted, then through the storage of accumulator homenergic, transmission unit, final driving electromotor generates electricity, or by other device fabrication fresh water or ice etc.
Comparing with other kinds of Wave energy converting device, oscillating float type wave energy apparatus, almost without submerged structure, builds difficulty and less costly; Simple in construction, storm resistance is better, and reliability is high; Device layout area is restricted less, it is easy to form wave field by suitable distribution, improves generating capacity. The midget plant of exploitation has had part test to be applied to coastal small-sized navigation mark modulator at present, and big-and-middle-sized device is then mainly used in maritime wave energy generating field.
The oscillating float type Wave energy converting device of traditional structure normally only absorbs the energy of the heaving of buoyancy aid above-below direction, i.e. one freedom oscillation float-type Wave energy converting device. The single-degree-of-freedom formula device of traditional structure has above-mentioned many advantages, but there is also the following shortcoming being difficult to and overcoming:
(1) buoyancy aid of single-degree-of-freedom and the PTO system design limit further lifting of device wave energy conversion efficiency. Buoyancy aid be usually in wave three-dimensional, six-freedom motion (surging, swaying, hang down swing, rolling, pitching and bow stern shake), and single-degree-of-freedom device only absorbs buoyancy aid energy of heaving in wave, the energy of other degree of freedom motion is left in the basket.
(2) one freedom oscillation float-type Wave energy converting device is generally adopted the buoyancy aid that the horizontal cross-section being conducive to heaving is circle. This buoyancy aid saturating wave under extreme sea condition is poor, it is easy to cause the damage of device.
(3) one freedom oscillation float-type Wave energy converting device buoyancy aid is commonly considered as the buoyancy aid swung that hangs down merely, can only effectively utilize one to hang down and swing natural frequency, namely when buoyancy aid hangs down and swings natural frequency and wave frequencies close to or up resonance state, device just has higher conversion efficiency, which has limited the device subject range to wave period.
Summary of the invention
The embodiment of the present invention provides a kind of various dimensions monobuoy formula Wave energy converting device, to overcome above-mentioned technical problem, and simplifies fluid pressure type Energy extraction and the generating link of the oscillating float type Wave energy converting device of various dimensions.
Various dimensions monobuoy formula Wave energy converting device of the present invention, including:
Surface buoy, under water damping body, returning spring, some groups of linear electric generators, rectifier connection unit and anchor unit.
Described surface buoy floats on corrugated, described damping body under water is positioned under the water surface, described returning spring, described some groups of linear electric generators are arranged at described surface buoy and described under water between damping body, described anchor unit be arranged at described in damping body bottom under water.
It is provided with in described surface buoy for electric treatable rectifier connection unit.
Further, described surface buoy is cuboid or cylinder.
Further, described returning spring two ends lay respectively at the central point of described surface buoy, described damping body under water.
Further, described some groups of linear electric generators are symmetrically arranged in the two ends of described surface buoy.
Further, the length of described surface buoy is equal to or less than 1/2nd of wavelength.
The surface buoy that the present invention adopts is the buoyancy aid with certain longitudinal size, and two ends, its underpart are arranged symmetrically with some groups of linear electric generators, it is possible to obtaining includes hanging down swings and the multifreedom motion energy such as pitching, it is possible to be greatly improved wave-energy power generation efficiency. Meanwhile, the present invention adopts returning spring, also substantially increases the device adaptability for different sea situations.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is various dimensions monobuoy formula Wave energy converting device structural representation of the present invention;
Fig. 2 is various dimensions monobuoy formula Wave energy converting device rectifier connection cell operation principle schematic of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into the scope of protection of the invention.
Fig. 1 is various dimensions monobuoy formula Wave energy converting device structural representation of the present invention, as it is shown in figure 1, the device of the present embodiment may include that
Surface buoy 101, rectifier connection unit 102, under water damping body 103, returning spring 104, some groups of linear electric generators 105 and anchor unit 106.
Described surface buoy floats on corrugated, described damping body under water is positioned under the water surface, described returning spring, described some groups of linear electric generators are arranged at described surface buoy and described under water between damping body, described anchor unit be arranged at described in damping body bottom under water.
It is provided with in described surface buoy for electric treatable rectifier connection unit.
Further, described surface buoy is cuboid or cylinder.
Further, the length of described surface buoy is equal to or less than 1/2nd of wavelength.
Specifically, surface buoy i.e. dynamic buoyancy aid, is a floating drum with certain length. Damping body is as quiet buoyancy aid under water, is a tabular buoyancy aid with greater level sectional area, has bigger heaving additional mass, be not substantially affected by wave action in the seawater, provides a platform relative to seabed less stationary for device. Under wave action, surface buoy by with the junction point of returning spring centered by do hang down swing, the multiple degrees of freedom coupled motions such as pitching. Linear electric generator subpart (coil windings) is connected by connecting elements with surface buoy, and stationary part (set of permanent magnets) is connected by connecting elements with damping body under water. The relative motion of surface buoy and under water damping body drives linear electric generator mover to move relative to linear stator, mover coil produces faradic current, the electric current of some groups of linear electric generator generations has different frequencies and phase place, require over rectifier connection unit and be connected into a generating set at DC side, thus increasing the output of electrical power, and export the electric energy of available relatively continuous-stable. The anchor chain (rope) of anchor unit is connected with damping body under water, by surface buoy and under water damping body be fixed on the marine site of certain position and the degree of depth.
The surface buoy that the present embodiment adopts is the cuboid with certain longitudinal length, and two ends, its underpart are arranged symmetrically with some groups of linear electric generators, it is possible to obtaining includes hanging down swings and the multifreedom motion energy such as pitching, it is possible to be greatly improved wave-energy power generation efficiency. Adopt returning spring, also substantially increase the device adaptability for different sea situations.
Further, described returning spring two ends lay respectively at the central point of described surface buoy, described damping body under water. Returning spring limits the heaving amplitude of device, serves the effect of protection device. And make the wave period scope that this device adapts to increase, thus improve the working range of this device.
Further, described some groups of linear electric generators are symmetrically arranged in the two ends of described surface buoy.
The number of linear electric generator is preferably even number except zero, and is symmetricly set in the both sides of surface buoy bottom, and the present embodiment is two.
If Fig. 2 is various dimensions monobuoy formula Wave energy converting device rectifier connection cell operation principle schematic of the present invention, as in figure 2 it is shown, the present embodiment rectifier connection unit includes:
Some groups of inverters 201 (exchange turns direct current), an inverter 202 (direct current delivers stream) and a transformator 203, and the number one_to_one corresponding of inverter 201 (exchange turns direct current) and linear electric generator 105.
Wherein, some groups of linear electric generator 105 subpart are dynamically connected surface floating body by component, the mover coil winding of some groups of linear electric generators 105 connects some groups of inverters 201 ac input end by transmission line, some groups of inverter 201 DC output ends connect inverter 202 direct-flow input end by transmission line, inverter 202 ac output end is connected with transformator 203 input by transmission line, and transformator 203 outfan connects the electric energy output transmission line of rectifier connection unit 102.
During the work of the present embodiment device: along with the fluctuation of wave, surface floating body by with the junction point of returning spring centered by do hang down swing, the multiple degrees of freedom coupled motions such as pitching, and damping body is not substantially affected by wave action in the seawater under water. the relative motion of surface buoy and under water damping body drives linear electric generator mover to move relative to linear stator, mover coil produces alternating current impression electric current, the alternating current of some groups of linear electric generator 105 generations enters inverter 201 ac input end by transmission line, alternating current is converted to unidirectional current, connected the direct-flow input end of inverter 202 by transmission line after the DC output end parallel connection connection of some groups of inverters 201, unidirectional current is converted to alternating current, the alternating current of the ac output end output of inverter 202 carries out transformation process through transformator 203, by transmission line by the electric current output after process. inverter 201 (exchange turns direct current) is corresponding with the number of linear electric generator 105.
In above-described embodiment, the effect of returning spring provides partial recovery power principally for surface buoy, ensure surface buoy all can effectively overcome linear electric generator damping force and frictional force to return back to heaving equilbrium position under any wavy condition, be also prevented from when wave high excessive time linear electric generator subpart motion amplitude excessive and impaired. Surface buoy heaving amplitude-frequency response feature can also be changed simultaneously, improve the device adaptability to different cycles wave situation, and by periodically storing and release wave energy, regulate the power curve feature of device.
The surface buoy that the present invention adopts is the buoyancy aid with certain longitudinal size, this buoyancy aid is except having heaving natural frequency, also there is the natural frequency of other degree of freedom motions such as obvious pitching, when wave frequencies close to or up these natural frequencies for the moment, coordinate the some groups of linear electric generators arranging its two ends, namely device can obtain higher wave energy conversion efficiency, and this has effectively widened the wave subject range of the type wave energy apparatus. And the surface buoy physical dimension that the present invention adopts, quality, linear electric generator electromagnetic property and the elastic coefficient etc. all can be adjusted according to the wave situation using marine site. In view of above reason, present invention can be widely used to the coastal of various sea situation and offshore sea waters.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit; Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a various dimensions monobuoy formula Wave energy converting device, it is characterised in that including:
Surface buoy, under water damping body, returning spring, some groups of linear electric generators, rectifier connection unit and anchor unit.
Described surface buoy floats on corrugated, described damping body under water is positioned under the water surface, described returning spring, described some groups of linear electric generators are arranged at described surface buoy and described under water between damping body, described anchor unit be arranged at described in damping body bottom under water.
It is provided with in described surface buoy for electric treatable rectifier connection unit.
2. device according to claim 1, it is characterised in that described surface buoy is cuboid or cylinder.
3. device according to claim 1 and 2, it is characterised in that described returning spring two ends lay respectively at the central point of described surface buoy, described damping body under water.
4. device according to claim 1 and 2, it is characterised in that described some groups of linear electric generators are symmetrically arranged in the two ends of described surface buoy.
5. device according to claim 1 and 2, it is characterised in that the length of described surface buoy is equal to or less than 1/2nd of wavelength.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024501.2A CN105626363A (en) | 2016-01-14 | 2016-01-14 | Multi-dimensional single-buoy type wave energy converting device |
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| CN201610024501.2A CN105626363A (en) | 2016-01-14 | 2016-01-14 | Multi-dimensional single-buoy type wave energy converting device |
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| CN201610024501.2A Pending CN105626363A (en) | 2016-01-14 | 2016-01-14 | Multi-dimensional single-buoy type wave energy converting device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107564383A (en) * | 2017-09-21 | 2018-01-09 | 华南理工大学 | A kind of electromechanical analogy system of oscillating float type wave-activated power generation |
| CN107917039A (en) * | 2017-12-19 | 2018-04-17 | 哈尔滨工程大学 | A kind of totally-enclosed inertia point sucking type wave energy apparatus |
| CN108167110A (en) * | 2017-12-25 | 2018-06-15 | 江苏科技大学 | Utilize the marine environmental monitoring platform of wave energy |
| CN109424491A (en) * | 2017-08-21 | 2019-03-05 | 郭继会 | Baffle is adopted can formula wave-power device |
| CN109736999A (en) * | 2018-11-22 | 2019-05-10 | 中国船舶重工集团公司第七一九研究所 | A kind of removable fold-playing wave energy generating set |
| CN110848074A (en) * | 2019-10-16 | 2020-02-28 | 汕头大学 | Wave energy power generation device |
| CN111255614A (en) * | 2020-03-16 | 2020-06-09 | 台州路桥布鲁新能源有限公司 | Device for generating electricity by utilizing sea waves |
| CN112780483A (en) * | 2021-03-05 | 2021-05-11 | 江苏科技大学 | Novel self-adaptive type heaving and shaking oscillating float type wave power generation device |
| CN113898521A (en) * | 2021-09-22 | 2022-01-07 | 鲁东大学 | Offshore floating platform stand damping heave plate and wave energy collection device |
| CN115977879A (en) * | 2023-02-22 | 2023-04-18 | 中国海洋大学 | Power generation system |
| CN117145685A (en) * | 2023-10-24 | 2023-12-01 | 武汉理工大学三亚科教创新园 | Electromagnetic tuning wave energy conversion device for floating fan platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109424491A (en) * | 2017-08-21 | 2019-03-05 | 郭继会 | Baffle is adopted can formula wave-power device |
| CN107564383A (en) * | 2017-09-21 | 2018-01-09 | 华南理工大学 | A kind of electromechanical analogy system of oscillating float type wave-activated power generation |
| CN107917039A (en) * | 2017-12-19 | 2018-04-17 | 哈尔滨工程大学 | A kind of totally-enclosed inertia point sucking type wave energy apparatus |
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| CN113898521A (en) * | 2021-09-22 | 2022-01-07 | 鲁东大学 | Offshore floating platform stand damping heave plate and wave energy collection device |
| CN113898521B (en) * | 2021-09-22 | 2024-03-08 | 鲁东大学 | Marine floating platform stand damping heave plate and wave energy collection device |
| CN115977879A (en) * | 2023-02-22 | 2023-04-18 | 中国海洋大学 | Power generation system |
| CN117145685A (en) * | 2023-10-24 | 2023-12-01 | 武汉理工大学三亚科教创新园 | Electromagnetic tuning wave energy conversion device for floating fan platform |
| CN117145685B (en) * | 2023-10-24 | 2024-03-05 | 武汉理工大学三亚科教创新园 | Electromagnetic tuning wave energy conversion device for floating fan platform |
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