CN102588196A - Modularized sea wave direct drive generator - Google Patents
Modularized sea wave direct drive generator Download PDFInfo
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- CN102588196A CN102588196A CN2012100687433A CN201210068743A CN102588196A CN 102588196 A CN102588196 A CN 102588196A CN 2012100687433 A CN2012100687433 A CN 2012100687433A CN 201210068743 A CN201210068743 A CN 201210068743A CN 102588196 A CN102588196 A CN 102588196A
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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
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Abstract
The invention discloses a modularized sea wave direct drive generator, comprising a floater and a sea wave direct drive generator which are arranged on a bracket from bottom to top, wherein the input driving end of the sea wave direct drive generator is connected with the floater; and the output end of the sea wave direct drive generator is connected with a series-parallel connection module. The sea wave direct drive generator comprises a sleeve, a stator coil, a rotor magnet and a driving rod, wherein the stator coil is arranged in the sleeve; the rotor magnet is arranged at the inner side of the stator coil; one end of the driving rod is inserted in the inner side of the stator coil and is connected with the rotor magnet through a flexible connecting structure, and the other end of the driving rod is arranged at the outer side below the sleeve and is connected with the floater; a sealing cover is arranged at the top end of the sleeve; and a wire outlet is arranged on the sealing cover. The main parts of the modularized sea wave direct drive generator are located above the sea surface and are packaged in the sleeve, and therefore, the damage probability of the main parts is reduced. The modularized sea wave direct drive generator is low in use cost in the life cycle and is suitable for large-scale production and use, and the development and utilization of the sea wave energy are strengthened.
Description
Technical field
The present invention relates to a kind of generator.Particularly relate to a kind of modularization wave that utilizes wave to generate electricity and directly drive generator.
Background technique
Wave can have distribution extensively, and total amount is huge, the advantage of cleanliness without any pollution, and wave-activated power generation is the main mode of wave power utilization, but also has three difficult problems to hamper the development and use of wave ability:
1, wave can be main with the wave energy of vertical motion; 2, wave can be the planar distribution of dispersion; 3, energy density is very low.
The existence of these three difficult problems makes the development and use of wave ability be different from general hydroelectric development.Present widely used generator is generally electric rotating machine, can not directly apply to seawave power generation.The wave of planar distribution can require electricity generating device must comprise the function of enrichment energy.The low density of wave ability makes the conversion efficiency of sea wave power generation system become the most key index.
Wave power utilization device of a great variety, about the patent of invention of Wave energy converting device above thousand.These install mainly based on following several kinds of basic mechanism, utilize vibration and the oscillating motion of object under wave action that is:; Utilize the variation of wave pressure; Utilize the bank of the wave potential energy that wave energy is converted to water etc. that climbs.The Wave power generation device of developmental research comparative maturity has three kind shapes basically at present: vibration water is leant on formula, oscillating floater formula and is gathered ripple reservoir formula.Like several kinds of following devices:
1. oscillaton water column type Wave energy converting device
Its cardinal principle is to utilize air as transfer medium; The collection of energy is accomplished through air chamber; Wave energy is converted to the pressure potential and the kinetic energy of air; An air turbine is installed at the nozzle place and the turbine rotating shaft is linked to each other with generator, compressed air stream capable of using drives also drive generator for electricity generation of turbine rotation.
This type device adopts the transfer of air energy, can avoid the direct strike of wave to power generation system.At present, the problem that the oscillaton water column type Wave energy converting device runs into mainly contains 2 points, and the one, how to design air chamber, improve the pressure that the inner oscillating water column of device provides as far as possible; Another is exactly how to confirm device put area across the sea.
2. pendulum-type Wave energy converting device
The pendulum-type Wave energy converting device is the movable part of utilized device, under the promotion of wave, its transformation of energy that from wave, absorbs is become mechanical energy or potential energy; This Wave energy converting device is to award proposition by the rich govern-education of the degree portion of Japan at first, and its mode is that wave forms vertical wave in hydroecium, at the place, stationary point of vertical wave; Water particle is reciprocating, shows on the macroscopic view, i.e. the to-and-fro motion of water body; Wave energy is converted to the kinetic energy of balance staff; The normally hydraulic pressure installation that links to each other with balance staff, it converts the kinetic energy of balance staff the kinetic energy of Hydraulic pump to, drives generator for electricity generation by oil hydraulic motor again.
3. oscillating floater formula Wave energy converting device
Oscillating floater formula Wave energy converting device is the Wave energy converting device that on the basis of oscillaton water column type, grows up; It is placed on float in the port as the absorption carrier of wave energy with one; The energy that then float is absorbed is changed away through a machinery or a hydraulic pressure installation that is placed on the bank; Be used for driving generator for electricity generation, form by several parts of float, connecting rod, fluid drive mechanism, generator and protective gear.
4. shrink radio frequency channel formula Wave energy converting device
Shrink radio frequency channel formula Wave energy converting device and be based on a kind of Wave energy converting device that ripple gathers theory.Ripple gathers theory and is proposed by the Falnes and the Budal of Norway Te Longmu university the earliest.Shrink radio frequency channel formula Wave energy converting device tool and turbine vane and be designed with one than the high elevated reservoir in sea level and the radio frequency channel of a gradually closing.Shrinking radio frequency channel is exactly the logarithm spiral normal surface that twice reinforced concrete is made in fact, and from extend in the elevated reservoir in the sea always, the twice wall joins in elevated reservoir.When wave gets into the contraction radio frequency channel, gather effect owing to shrink the ripple of radio frequency channel, the wave height of wave is increased, get into elevated reservoir thereby make water cross reinforced concrete wall, the water in the reservoir is used for generating electricity through the hydraulic generator unit of a low water head then.
Except said apparatus, at present comparatively successful wave energy apparatus also has the combined type, rectifier type Wave energy converting device of Salter " duck nods " formula Wave energy converting device, raft formula and hydraulic system etc., but its basic principle is identical.Can find out from above discussion; The oscillaton water column type wave energy apparatus is the wave energy apparatus of more employing in reality, and its advantage is that device structurally has reliability preferably, but the conversion efficiency of device is lower; Investment cost is too high; Therefore, in the high country of some wave energy density, be used widely like Europe, Japan, North America.But in the lower country of some wave energy density, like China, how reducing cost, raising the efficiency is the key that the wave device moves towards market, continues to adopt this poor efficiency, expensive device just to seem not ideal.
Reference: Li Chengkui, Liao Wenjun, Wang Yuxin: " world ocean wave-energy power generation Research progress. both at home and abroad dynamically " the 2nd phase in 2010.
The thinking of above-mentioned these generation modes is to utilize mechanical device to collect Wave energy, forms high-velocity flow or air-flow, utilizes current at a high speed or air-flow to promote traditional rotary generator generating then, i.e. face energy collecting, the form of some generating.This kind power generation mode Conversion of energy link is many, causes its inefficiency, complex structure, difficult in maintenance, cost is high.This type through direct enrichment mechanical energy, utilization electric rotating machine generating mode and be not suitable for wave can development and use.
The conversion process of energy of existing sea wave power generation system roughly is divided into following three parts: the one-level conversion is the process that power generation system is collected Wave energy; The secondary conversion refers to that the energy of collecting converts the process of the kinetic energy of high-velocity flow or air-flow into through machinery or hydraulic pressure installation; Three grades of conversions are the process that generator converts the mechanical energy of input to electric energy.The conversion efficiency of sea wave power generation system is by these three grades of conversion efficiency decisions, and definition one-level conversion efficiency is η
1, the secondary conversion efficiency is η
2, three grades of conversion efficiencies are η
3, the conversion efficiency of conventional power generation systems: η=η then
1* η
2* η
3
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of parts few, simple in structure, and the modularization wave that generating efficiency is high directly drives generator.
The technological scheme that the present invention adopted is: a kind of modularization wave directly drives generator; Comprise: support; The float and the wave that are arranged on from bottom to top on the support directly drive generator; Wherein, the input drive end that described wave directly drives generator connects float, and the output terminal that said wave directly drives generator connects the series parallel connection module.
Described wave directly drives generator and includes: sleeve; Be arranged on the stator coil in the sleeve, be positioned at the inboard mover magnet of stator coil, an end is inserted into the driveshaft that stator coil inboard and described mover magnet link to each other through flexible connecting structure; The other end of said driveshaft is positioned at the outside of sleeve below; And link to each other with float, described sleeve top is provided with capping, has lead in the described capping and portals.
Described float is provided with two waves and directly drives generator.
Described support includes base and upper bracket, and is connected two guide pillars between base and the upper bracket, and described wave directly drives generator and is fixed on the upper bracket, and described float can be arranged on two guide pillars along what two guide pillars slided up and down.
Described series parallel connection module includes a plurality of rectification circuits; The input end of described each rectification circuit connects the output terminal that a wave directly drives generator; The output terminal of described each rectification circuit all connects an end of switch S 1 and an end of switch S 2 respectively, and wherein, the other end of said switch S 1 connects an end of capacitor C 1 and the end of reference diode D9 respectively; The other end ground connection of said capacitor C 1; This end also constitutes output negative pole, the other end ground connection of said reference diode D9, and the other end of said switch S 2 constitutes output cathode.
Described rectification circuit includes rectifier bridge D1, and the pin 1 of said rectifier bridge D1 is connected the output terminal that wave directly drives generator with pin 3, pin 4 ground connection, and pin 2 connects the end of diode D5, and the other end of diode D5 constitutes the output terminal of this rectification circuit.
Modularization wave of the present invention directly drives generator, has following characteristics:
1, generating efficiency analysis
The present invention utilizes the wave vertical motion directly to drive generator, has cancelled middle transmission link, and the whole generating process only has one-level transfer process and three grades of transfer processes.So the conversion efficiency of its power generation system is η=η
1* η
3The enrichment energy adopts collects electric energy but not mechanical energy, and energy loss is very little in the process.So wave directly drives the generating efficiency of electricity generating device of generator and modularization electricity generating device apparently higher than traditional ocean wave generator.
2, the user cost analysis in the Life cycle
Modularization, theory have cheaply been implemented in the design of whole generating system.
Modularization electricity generating device parts are few, simple in structure, very are easy to the production line production and assembly.Do not make the parts of high speed compound movement during in addition owing to the work of generator array, so not high to the component requirement on machining accuracy, therefore the cost of material is low.So total processing charges is cheap.
The installation of power generation array of the present invention can be divided into combined and arranged and arrange with independent.Power generation array can be suspended on the basis of drill platform or offshore wind generating, fully reduces installation cost.When condition does not allow or sea water advanced when little, can it independently be placed on the column.
Critical piece of the present invention is positioned on the sea, directly drives the main component packages of generator in sleeve, has reduced its impaired probability.And the whole generating machine has only low-speed motion parts, improved its anti-disaster ability greatly, reduced the wearing and tearing between the spreadable life.So the maintenance cost of modularization electricity generating device is low.Modular design has simultaneously reduced the difficulty of the maintenance and the replacement of whole system.
Modularization wave of the present invention directly drives generator, and the user cost in the Life cycle is cheap, and suitable extensive the manufacturing used, and strengthens the development and use of wave ability.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is that wave directly drives the generator Structure schematic representation among Fig. 1;
Fig. 4 is the circuit theory diagrams of series parallel connection module of the present invention.
Among the figure:
A: wave directly drives generator B: float
C: support D: rectification circuit
1: sleeve 2: stator coil
3: mover magnet 4: driveshaft
5: capping 6: lead portals
7: flexible connecting structure 8: upper bracket
9: base 10: guide pillar
Embodiment
Below in conjunction with embodiment and accompanying drawing modularization wave of the present invention is directly driven generator and make detailed description.
Like Fig. 1, shown in Figure 2; Modularization wave of the present invention directly drives generator; Comprise: support C, the float B and the wave that are arranged on from bottom to top on the support C directly drive generator A, wherein; The input drive end that described wave directly drives generator A connects float B, and the output terminal that said wave directly drives generator A connects the series parallel connection module.Described float B is provided with two waves and directly drives generator A.Described support C includes base 9 and upper bracket 8; And be connected two guide pillars 10 between base 9 and the upper bracket 8; Described wave directly drives generator A and is fixed on the upper bracket 8, and described float B can be arranged on two guide pillars 10 along what two guide pillars 10 slided up and down.
As shown in Figure 3, described wave directly drives generator A and includes: sleeve 1 is arranged on the stator coil 2 in the sleeve 1; Be positioned at the mover magnet 3 of stator coil 2 inboards; One end is inserted into the stator coil 2 inboard driveshafts 4 that link to each other through flexible connecting structure (7) with described mover magnet 3, and the other end of said driveshaft 4 is positioned at the outside of sleeve 1 below, and links to each other with float B; Described sleeve 1 top is provided with capping 5, has lead in the described capping 5 and portals 6.
It is linear electric generator that described wave directly drives generator A.The mover magnet of this generator is rubidium iron boron strong magnet, and it is connected with float, can fluctuate along with the sea fluctuation.Stator coil is the way and double-layer coil on the mover magnet slide rail, and two-layer up and down coil winding-direction is opposite.When mover magnet is done straight reciprocating motion, just can produce the electric current of alternation in the stator coil.Mover magnet and stator coil all are encapsulated in the sleeve, avoid the erosion of seawater and salt fog.The stator coil motion amplitude 12cm of demonstrating model.Single generator voltage can reach 6V.
As shown in Figure 4; Described series parallel connection module includes a plurality of rectification circuit D, and the input end of described each rectification circuit D connects the output terminal that a wave directly drives generator A, and the output terminal of described each rectification circuit D all connects an end of switch S 1 and an end of switch S 2 respectively; Wherein, The other end of said switch S 1 connects an end of capacitor C 1 and the end of reference diode D9 respectively, the other end ground connection of said capacitor C 1, and this end also constitutes output negative pole; The other end ground connection of said reference diode D9, the other end of said switch S 2 constitutes output cathode.Described rectification circuit D includes rectifier bridge D1, and the pin 1 of said rectifier bridge D1 is connected the output terminal that wave directly drives generator A with pin 3, pin 4 ground connection, and pin 2 connects the end of diode D5, and the other end of diode D5 constitutes the output terminal of this rectification circuit D.
Rectification circuit converts the Ac that wave directly drives generator output into unidirectional current, and all electric energy are pooled on the bus, reaches the purpose of enrichment energy.Compare and compile mechanical energy, compiling of electric energy do not need moving element, and the layout of lead and electrical apparatus element very flexibly, makes it more adapt to complicated ocean environment.
Mu balanced circuit is supporting electric capacity.When opening current stabilization circuit, bus is the electric capacity charging, and electric capacity is outwards supplied power then.When equal size of current equated when input output, the voltage constant of electric capacity both sides just can be exported stable direct current, satisfies the needs of power supply.
Modularization wave of the present invention directly drives generator; Can also be provided with combined pillar; Described combined pillar is used for wave with some and directly drives generator and be linked to be the modularization power generation array, and its array size and scale can need and environmental conditions adjusted flexibly by the user.Wave directly drives the platform number of generator by the required total installation of generating capacity decision of user.Wave directly drives the Wave energy density adjustment of the packing density of generator according to the place to use.The generator array can be placed on the column that stands on sea bed, also can hang on the basis of changeing platform shaft or offshore wind generating.Has apparatus for automatically lifting on the combined pillar to adapt to the depth of water of variation.Directly drive generator and the series parallel connection module all is arranged on the support, avoided contacting, improved the reliability of device with the direct of seawater.
Modularization wave of the present invention directly drives generator, can need and environmental conditions is regulated the quantity of directly driving generator and the mounting type of array flexibly by the user.Its adaptability to environment is also very strong, through regulating guide rail and float, can make it adapt to various sea situations.Its moving element and parts are less has under water improved whole device greatly and has born boisterous ability.The present invention is littler with respect to the build of the Wave energy converting device of other kind, and is littler for the influence of view and sea navigation across the sea, therefore is fit to be installed in the zone near the potential user.
Wave directly drives generator and modularization electricity generating device application area is very extensive, and I is used for the drill platform power supply of beacon, can be used for making up large-scale sea wave generator station greatly and solves coastal and island area energy shortage.
Claims (6)
1. a modularization wave directly drives generator; It is characterized in that; Comprise: support (C), the float (B) and the wave that are arranged on from bottom to top on the support (C) directly drive generator (A), wherein; The input drive end that described wave directly drives generator (A) connects float (B), and the output terminal that said wave directly drives generator (A) connects the series parallel connection module.
2. modularization wave according to claim 1 directly drives generator; It is characterized in that described wave directly drives generator (A) and includes: sleeve (1) is arranged on the stator coil (2) in the sleeve (1); Be positioned at the inboard mover magnet (3) of stator coil (2); One end is inserted into the inboard driveshaft (4) that links to each other through flexible connecting structure (7) with described mover magnet (3) of stator coil (2), and the other end of said driveshaft (4) is positioned at the outside of sleeve (1) below, and links to each other with float (B); Described sleeve (1) top is provided with capping (5), has lead portal (6) in the described capping (5).
3. modularization wave according to claim 1 directly drives generator, it is characterized in that, described float (B) is provided with two waves and directly drives generator (A).
4. modularization wave according to claim 1 directly drives generator; It is characterized in that; Described support (C) includes base (9) and upper bracket (8); And be connected two guide pillars (10) between base (9) and the upper bracket (8), and described wave directly drives generator (A) and is fixed on the upper bracket (8), and described float (B) can be arranged on two guide pillars (10) along what two guide pillars (10) slided up and down.
5. modularization wave according to claim 1 directly drives generator, it is characterized in that, described series parallel connection module includes a plurality of rectification circuits (D); The input end of described each rectification circuit (D) connects the output terminal that a wave directly drives generator (A); The output terminal of described each rectification circuit (D) all connects an end of switch S 1 and an end of switch S 2 respectively, and wherein, the other end of said switch S 1 connects an end of capacitor C 1 and the end of reference diode D9 respectively; The other end ground connection of said capacitor C 1; This end also constitutes output negative pole, the other end ground connection of said reference diode D9, and the other end of said switch S 2 constitutes output cathode.
6. modularization wave according to claim 5 directly drives generator; It is characterized in that; Described rectification circuit (D) includes rectifier bridge D1, and the pin 1 of said rectifier bridge D1 is connected the output terminal that wave directly drives generator (A) with pin 3, pin 4 ground connection; Pin 2 connects the end of diode D5, and the other end of diode D5 constitutes the output terminal of this rectification circuit (D).
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976047A (en) * | 2015-06-19 | 2015-10-14 | 电子科技大学 | Direct drive type wave power generation system utilizing superconducting coils |
| CN106014862A (en) * | 2016-05-19 | 2016-10-12 | 哈尔滨工程大学 | Novel floating type multi-floater wind-wave energy hybrid power generation device |
| WO2017028607A1 (en) * | 2015-08-18 | 2017-02-23 | 河海大学 | Device for increasing efficiency of wave power generation and manufacturing method thereof |
| CN106948997A (en) * | 2017-05-02 | 2017-07-14 | 苏州大学 | A kind of combined type Wave energy collecting device |
| CN106960620A (en) * | 2017-04-28 | 2017-07-18 | 东北师范大学 | A kind of experimental demonstration device of wave-activated power generation |
| CN108035837A (en) * | 2017-12-30 | 2018-05-15 | 中国海洋大学 | A kind of entirety shipment type oscillating floater and its installation method |
| CN110145429A (en) * | 2019-05-23 | 2019-08-20 | 中国海洋大学 | A kind of wave and heaving manifold type power generator |
| CN112319715A (en) * | 2020-11-04 | 2021-02-05 | 河海大学 | Combined ocean platform |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104976047A (en) * | 2015-06-19 | 2015-10-14 | 电子科技大学 | Direct drive type wave power generation system utilizing superconducting coils |
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| CN106014862A (en) * | 2016-05-19 | 2016-10-12 | 哈尔滨工程大学 | Novel floating type multi-floater wind-wave energy hybrid power generation device |
| CN106960620A (en) * | 2017-04-28 | 2017-07-18 | 东北师范大学 | A kind of experimental demonstration device of wave-activated power generation |
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| CN108035837A (en) * | 2017-12-30 | 2018-05-15 | 中国海洋大学 | A kind of entirety shipment type oscillating floater and its installation method |
| CN108035837B (en) * | 2017-12-30 | 2024-01-26 | 中国海洋大学 | Integral shipping type oscillating floater and installation method thereof |
| CN110145429A (en) * | 2019-05-23 | 2019-08-20 | 中国海洋大学 | A kind of wave and heaving manifold type power generator |
| CN112319715A (en) * | 2020-11-04 | 2021-02-05 | 河海大学 | Combined ocean platform |
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Application publication date: 20120718 |