CN102734077A - Energy storage system and aerogenerator comprising the energy storage system - Google Patents
Energy storage system and aerogenerator comprising the energy storage system Download PDFInfo
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- CN102734077A CN102734077A CN2011100860714A CN201110086071A CN102734077A CN 102734077 A CN102734077 A CN 102734077A CN 2011100860714 A CN2011100860714 A CN 2011100860714A CN 201110086071 A CN201110086071 A CN 201110086071A CN 102734077 A CN102734077 A CN 102734077A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention discloses an energy storage system and an aerogenerator comprising the energy storage system. According to the invention, superfluous wind energy can be controlled to store when a wind power is too large, and the superfluous wind energy can be controlled to release when the wind power is not enough, thereby a continuous and stable electric power output is realized to a maximum extent. The energy storage system provided in the invention at least comprises an energy storage unit. The energy storage unit comprises an energy storage apparatus, an energy storage differential and a controllable brake apparatus. The energy storage differential comprises an input working end which is used to receive input power, an output working end which is used to output power and an energy storage working end which is used to exchange energy with the energy storage apparatus. The controllable brake apparatus is combined with the energy storage working end, thereby the energy storage working end can exchange the energy with the energy storage apparatus in a controllable way.
Description
Technical field
The wind-driven generator that the present invention relates to a kind of energy-storage system and comprise this energy-storage system.
Background technique
Contradiction between the human trend that day by day worsens for the growing demand of the energy and ecotope makes the sustainable use that how to realize the energy become the problem that the whole world is all being paid close attention to exploitation.Wind energy has received the attention of countries in the world as good clean energy resource.
Yet wind generating technology also can't be realized the mass commercial utilization as traditional thermal power generating technology at present.Wherein, one of problem of most critical is that wind-force is unstable, cuts in and out, and is suddenly big or suddenly small, causes wind-driven generator that lasting, stable electric power output can't be provided.Therefore, wind-powered electricity generation is difficult to incorporate into national grid, is called as " rubbish ".
Summary of the invention
The present invention intends a kind of energy-storage system is provided, and when wind-force is excessive, can controllably store unnecessary wind energy, the wind energy of release stored controllably when wind-force is not enough.
The present invention also intends provides a kind of wind-driven generator, through utilizing energy-storage system of the present invention, realizes continuing, stablizing of electric power output to greatest extent.
Correspondingly, one aspect of the present invention provides a kind of energy-storage system, comprises at least one Storage Unit, and said Storage Unit comprises: energy storage apparatus; Accumulation of energy differential mechanism, said accumulation of energy differential mechanism comprise the input service end that is used to receive input power, be used for the output services end of outputting power and be used for the accumulation of energy working end with said energy storage apparatus exchange energy; With the controllable brake device, said controllable brake device is incorporated into said accumulation of energy working end, makes that said accumulation of energy working end can be with controllable mode and said energy storage apparatus exchange energy.
Preferably, said energy-storage system can comprise a plurality of said Storage Units that are provided with cascade system, and wherein, the output services end of the accumulation of energy differential mechanism of a Storage Unit is connected in the input service end of the accumulation of energy differential mechanism of Storage Unit subsequently." a plurality of " are meant more than two.
Preferably, said accumulation of energy differential mechanism can comprise: first semiaxis is used for reception and imports power and constitute said input service end; First angular wheel integrally formed with said first semiaxis; Second semiaxis is used for outputting power and constitutes said output services end; Second angular wheel integrally formed with said second semiaxis; A plurality of planetary pinions mesh with said first angular wheel and said second angular wheel between said first angular wheel and said second angular wheel and simultaneously; Support said a plurality of planetary planetary carrier; And housing, integrally formed with said planetary carrier, be used for constituting said accumulation of energy working end with said energy storage apparatus exchange energy.
Perhaps, said accumulation of energy differential mechanism can comprise: first semiaxis is used for reception and imports power and constitute said input service end; First angular wheel; Second semiaxis is used for outputting power and constitutes said output services end; Second angular wheel integrally formed with said second semiaxis; A plurality of planetary pinions mesh with said first angular wheel and said second angular wheel between said first angular wheel and said second angular wheel and simultaneously; Planetary carrier supports said a plurality of planetary pinion and integrally formed with said first semiaxis; And housing, integrally formed with said first angular wheel, be used for constituting said accumulation of energy working end with said energy storage apparatus exchange energy.
Preferably, said controllable brake device can comprise the brake disc and the brake calipers that can with controlled way engage and discharge said brake disc integrally formed with said accumulation of energy working end.
On the other hand; The present invention also provides a kind of wind-driven generator; The power-transmission system that comprises wind wheel that can under wind, rotate and the power that can receive and transmit said wind wheel generation; Also comprise the energy-storage system that limits according to above-mentioned each technological scheme, receive power from said power-transmission system.
Preferably, the output services end of the accumulation of energy differential mechanism of at least one Storage Unit in said at least one Storage Unit is connected with revolution speed control device.
Preferably; The output services end of the accumulation of energy differential mechanism of at least one Storage Unit in said at least one Storage Unit; Be connected with the second accumulation of energy differential mechanism; The accumulation of energy working end of the said second accumulation of energy differential mechanism can with the second energy storage apparatus exchange energy, the output services end of the said second accumulation of energy differential mechanism is connected with revolution speed control device.
According to energy-storage system of the present invention and the wind-driven generator that uses this energy-storage system, accumulation of energy differential mechanism and energy storage apparatus optionally carry out the exchange (comprise and optionally cut off energy interchange) of energy under the control of corresponding controllable brake device.Therefore; Can be as the case may be; Give predetermined energy storage apparatus with unnecessary energy transfer as required; The energy that perhaps will be scheduled to the energy storage apparatus storage is transferred to the accumulation of energy differential mechanism as required, perhaps keeps the current output state of accumulation of energy differential mechanism, thereby can realize the continual and steady electric power output of wind-driven generator to greatest extent.
Description of drawings
Fig. 1 is the principle schematic according to the energy-storage system and the wind-driven generator of one embodiment of the present invention.
Fig. 2 is the schematic cross sectional views of accumulation of energy differential mechanism first mode of execution among Fig. 1.
Fig. 3 is the schematic cross sectional views of accumulation of energy differential mechanism second mode of execution among Fig. 1.
Fig. 4 is the schematic cross sectional views of a kind of mode of execution of Fig. 1 medium speed control gear.
Embodiment
Describe embodiment of the present invention with reference to the accompanying drawings in detail.
Fig. 1 is the principle schematic according to the energy-storage system and the wind-driven generator of one embodiment of the present invention.Power-transmission system 5 that the power that wind-driven generator in the illustrated embodiment comprises the pylon of vertically setting up 1, the wind wheel 2 that can under wind, rotate, produce wind wheel 2 transmits downwards along pylon 1 and the energy-storage system 4 that receives power from power-transmission system 5.
On June 9th, 2010, the name No. 200920179133.4 Chinese utility model patent being called " horizontal shaft type wind energy conversion system " of notice of authorization disclosed a kind of wind-driven generator with above-mentioned power-transmission system.Whole related contents of the document are contained in this by reference.
No. 201020613115.5 Chinese utility application that the name that the applicant applied on November 15th, 2010 is called " coupling piece assembly and power-transmission system and wind energy conversion system and wind-driven generator " also discloses a kind of wind-driven generator that comprises above-mentioned power-transmission system.Whole related contents of the document are contained in this by reference.
It should be appreciated by those skilled in the art that to the invention is intended to provide a kind of novelty effective energy-storage system, and this energy-storage system is used in the wind-driven generator.Therefore, the present invention comprises power-transmission system for other structures of wind-driven generator, not restriction.Other types wind-driven generator known in the art and power-transmission system also can be used in combination with energy-storage system of the present invention.
Energy-storage system 4 according to the present invention comprises at least one Storage Unit.In example shown in Figure 1, two Storage Units have been shown, i.e. first Storage Unit 3 and second Storage Unit 6.Each Storage Unit can comprise energy storage apparatus, accumulation of energy differential mechanism and controllable brake device.The accumulation of energy differential mechanism comprises the input service end that is used to receive input power, be used for the output services end of outputting power and be used for the accumulation of energy working end with the energy storage apparatus exchange energy.A plurality of Storage Units are with the cascade system setting, and wherein, the output services end of the accumulation of energy differential mechanism of a Storage Unit is connected in the input service end of the accumulation of energy differential mechanism of Storage Unit subsequently.
According to a kind of mode of execution, can these Storage Units be respectively fixed to the different tower layers of pylon 1.Output services end that is connected with each other between adjacent accumulation of energy differential mechanism and input service end can interconnect through structures such as for example coupling, are used for transferring power; Also can the two be made of one.
It should be appreciated by those skilled in the art that the object of the invention is not that principle to energy storage apparatus itself designs or improves.The energy storage apparatus that can realize energy storage and output as known in the art; Can use in the present invention, for example, the combination of flywheel, torque spring and air compressor and electric generator/electric motor and storage battery; And the combination of these energy storage apparatuss use, or the like.
In the present invention, each Storage Unit can use identical energy storage apparatus, also can use different energy storage apparatuss.
In the present invention; Energy interchange between accumulation of energy working end and the energy storage apparatus; Both comprised that energy flowed to energy storage apparatus from the accumulation of energy working end; And store the energy in the energy storage apparatus, comprise that also energy flows to the accumulation of energy working end from energy storage apparatus, and the energy that will be stored in the energy storage apparatus discharges to the accumulation of energy differential mechanism.
In the present invention, to first Storage Unit 3, before its constituent elements correspondingly " first " in addition; To second Storage Unit 6, " second " (two semiaxis among Fig. 2 and 3 no matter for which Storage Unit, all are called " first semiaxis " and " second semiaxis " in the present invention) in addition correspondingly before its constituent elements.Can expect that the Storage Unit that energy-storage system 4 of the present invention can also comprise the 3rd, the fourth class etc. needs quantity does not arbitrarily illustrate among the figure.
In the present invention, the device of identical type or the Different Individual of structure only represented in determiners such as " first " of using before the term, " second ".
As shown in Figure 1, the first input service end 31 of the first accumulation of energy differential mechanism 30 of first Storage Unit 3 links to each other with the output terminal of power-transmission system 5, receives the power from wind wheel 2.The first output services end 33 of the first accumulation of energy differential mechanism 30 links to each other with the second input service end 61 of the second accumulation of energy differential mechanism 60, will give second Storage Unit 6 through the transmission of power of first Storage Unit 3.By that analogy,, continue to pass to Storage Unit subsequently, perhaps output to other targets, for example revolution speed control device 70 or generator through the power of second Storage Unit 6 the second output services end 63 through second Storage Unit 60.
On August 4th, 2010, No. 200920179109.0 Chinese utility model patent notice of authorization, that name is called " natural force power generating equipment and generator set " disclosed a kind of differential mechanism or differential gear that can be used in combination with energy storage apparatus.Whole related contents of this patent documentation are contained in this by reference.It will be understood by those skilled in the art that differential mechanism of the present invention can utilize known any other differential attachment to realize.Determiner " accumulation of energy " in " accumulation of energy differential mechanism " is used to represent differential mechanism effect in the present invention, rather than in order to limit the structure of differential mechanism.
Below, be a kind of structure that example is described accumulation of energy differential mechanism of the present invention with reference to Fig. 2 with the first accumulation of energy differential mechanism 30.This structure is equally applicable to the second accumulation of energy differential mechanism 60 and waits other accumulation of energy differential mechanism.
The first accumulation of energy differential mechanism 30 comprises first semiaxis 31 as the first input service end, as second semiaxis 33 of the first output services end with as the housing 37 of the first accumulation of energy working end.The first accumulation of energy differential mechanism 30 also comprises and first semiaxis 31 is integrally formed first angular wheel 32, and integrally formed second angular wheel 34 of second semiaxis 33, at first, second angular wheel 32, between 34 and simultaneously and a plurality of planetary pinions 35 of this two angular wheels engagements and the planetary carrier 36 that supports these planetary pinions 35.Wherein, housing 37 surrounds above-mentioned member and integrally formed with planetary carrier 36.
Term " integrally formed " is meant that a plurality of members or part combine with the mode that interfixes; The situation that the member that had both comprised a plurality of separation utilizes modes such as link or welding to be fixed together comprises that also a plurality of parts formations are the situation of single structure on the whole.
Be directed to design factors such as different concrete energy storage apparatus structures and working environment, housing 37 can have various structure.As an example, when adopting with rotating shaft as the flywheel of I/O end, torsion spring, can the rotating shaft of housing 37 and energy storage apparatus be made belt wheel as first energy storage apparatus 40, utilize belt between the two, to carry out the exchange of energy.As a kind of substitute mode, can gear be processed in the I/O rotating shaft of the housing 37 and first energy storage apparatus 40, utilize pinion unit to carry out the exchange of energy.
In order to make the housing (the first accumulation of energy working end) 37 can be with controllable mode and first energy storage apparatus, 40 exchange energys; Promptly optionally allow as required perhaps to end this energy interchange, first Storage Unit 3 according to the present invention also comprises the first controllable brake device 50 that is incorporated into housing 37.
As a kind of mode of execution, as shown in Figure 2, on housing 37, can form first brake disc 51, as the constituent element of the first controllable brake device 50.The first controllable brake device 50 also comprises first brake calipers 52.First brake calipers 52 can be engaged in first brake disc 51 in response to electrical signal is closed, thereby makes brake disc 51 stop motions of winning, and then makes housing 37 stop operating.In this case; The power that the first input service end 31 receives directly passes to second Storage Unit 6 through the first output services end 33; The first accumulation of energy working end 37 does not receive the former energy of having stored from first energy storage apparatus 40 neither to first energy storage apparatus, 40 conveying capacities yet.When in response to other electrical signal or when no longer applying electrical signal, first brake calipers 52 opens and discharges first brake disc 51, thereby allows housing 37 to rotate.In this case, can realize energy interchange between energy storage apparatus and the accumulation of energy working end.
Though above-described controllable brake device is an open type,, should be appreciated that the first controllable brake device 50 can be a normal close type also, when promptly not having electrical signal, first brake calipers 52 engages first brake disc 51; And when applying electrical signal, first brake calipers 52 discharges first brake disc 51.
Above-mentioned braking device only is an example.The mechanism that can brake with controlled way as known in the art as long as be suitable for adopting the layout as first brake calipers 52 and first brake disc 51, all can be used as controllable brake device of the present invention.
Fig. 3 shows the another kind of structure of accumulation of energy differential mechanism of the present invention, and wherein, the structural member identical with structure among Fig. 2 uses same reference character; But structural member that function corresponding different with structure among Fig. 2 uses the reference character of band " ' " number.
The accumulation of energy differential mechanism 30 of present embodiment ' comprise first semiaxis 31 as the input service end ', as second semiaxis 33 of output services end and as the housing 37 of accumulation of energy working end '.Second angular wheel 34 and second semiaxis 33 are integrally formed.Housing 37 ' with first angular wheel 32 ' integrally formed, can be with first angular wheel 32 ' rotate integratedly.A plurality of planetary pinions 35 first angular wheel 32 ' and second angular wheel 34 between and be meshed simultaneously with these two angular wheels.Planetary carrier 36 ' with first semiaxis 31 ' integrally formed, support these planetary pinions 35 rotationally.
Housing 37 ' on form for example brake disc 51 as a controllable brake device part.
Further preferred embodiment according to the present invention, the output services end of at least one Storage Unit is connected with revolution speed control device.Referring to Fig. 1, as an example, the second output services end (second semiaxis) 63 of second Storage Unit 6 links to each other with revolution speed control device 70, makes the rotating speed of the second output services end 63 can be adjusted to the rotational velocity that needs.Revolution speed control device 70 is controlled the direction of flow of energy between the second accumulation of energy working end 67 and second energy storage apparatus 90 simultaneously also as the load of second Storage Unit 6.For example, when second semiaxis 63 when rotating speed is slack-off under the control of revolution speed control device 70, to 90 accumulation of energys of second energy storage apparatus; When second semiaxis 63 needed to accelerate to rotate, second energy storage apparatus 90 released energy.
No. 201020520235.0 Chinese utility model patent that name is called " mechanical type revolution speed control device and wind power plant " discloses a kind of above-mentioned revolution speed control device.Whole related contents of this patent documentation are incorporated into this by reference.
Fig. 4 shows a kind of revolution speed control device 70.Revolution speed control device 70 comprises worm gear 72 and worm screw 71.Worm screw 71 can link to each other with a motor (not shown), under the driving of motor, with predetermined rotational speed.Worm gear 72 and worm screw 71 engagements, and can be fixed on the second output services end (second semiaxis) 63 of the second accumulation of energy differential mechanism 60 for example.Worm gear 72 can combine through the key 73 and the second output services end 63, and is perhaps integrally formed with the second output services end 63.Worm and gear can substitute with the gear of pair of meshing.It may occur to persons skilled in the art that revolution speed control device 70 should be worked under the brake calipers of the second controllable brake device 80 82 discharges the situation of brake discs 81.
In another kind of mode of execution (not shown); Second Storage Unit 6 can not comprise the second controllable brake device 80; Promptly the first output services end 33 of the first accumulation of energy differential mechanism 30 of first Storage Unit 5 is connected to the second accumulation of energy differential mechanism 60 that does not combine the second controllable brake device 80.The accumulation of energy working end of the second accumulation of energy differential mechanism 60 and second energy storage apparatus 90 carry out energy interchange, and the second output services end 63 combines revolution speed control device 70.
Be appreciated that revolution speed control device 70 can link to each other with the input service end of accumulation of energy differential mechanism in the follow-up Storage Unit, also can with other destination device for example generator link to each other.
Below, with reference to Fig. 1 and 2, describe according to energy-storage system of the present invention and the working principle of using the wind-driven generator of this energy-storage system.
Wind wheel 2 rotates under the effect of wind-force, and power is passed to the first input service end 31 of the first accumulation of energy differential mechanism 30 of first Storage Unit 3, i.e. first semiaxis 31 (Fig. 2) through power-transmission system 5.
If the control system (not shown) is confirmed need not to carry out accumulation of energy or need not receiving the energy of being stored from first energy storage apparatus 40 to first energy storage apparatus 40; First brake calipers, 52 closures of the first controllable brake device 50 then; Be bonded on the integrally formed brake disc 51 in the first accumulation of energy working end (housing) 37 on, make housing 37 not rotate.At this moment, mesh through the planetary pinion 35 and second angular wheel 34, drive with second angular wheel, 34 integrally formed second semiaxis (the first output services end) 33 and rotate with first semiaxis, the 31 first integrally formed angular wheels 32.
When wind-force was excessive, control system control can be according to the accumulation of energy situation of each energy storage apparatus, and some that optionally discharge in a plurality of controllable brake devices are perhaps whole.To discharge the first controllable brake device 50 is example, and first brake calipers 52 opens, and disengaging engages with first brake disc 51, makes housing 37 to rotate.So the energy part that exceeds 33 loads of second semiaxis that transmits from first semiaxis 31 passes to first energy storage apparatus 40 through the rotation of housing 37, accomplishes the storage of energy.Be appreciated that if second semiaxis 33 is combined with revolution speed control device so, its load is mainly by this revolution speed control device decision; Otherwise the load of second semiaxis 31 depends on that the second input service end (first semiaxis) 61 of the second accumulation of energy differential mechanism 60 drives the formed load of structure of back.
When wind-force is too small; The situation excessive with wind-force is similar; Control system control can be according to the accumulation of energy situation of each energy storage apparatus, and some that optionally discharge in a plurality of controllable brake devices are perhaps whole, thereby optionally discharges the energy of some perhaps whole energy storage apparatus storage.Be example still to discharge the first controllable brake device 50.Because when wind-force is too small, first semiaxis, 31 rotating speeds diminish, so housing 37 rotates under the effect of the energy that first energy storage apparatus 40 is stored.At this moment, the planetary pinion 35 that combines with housing 37 through planetary carrier 36 becomes actuation gear (first semiaxis 31 can utilize any known mode be under an embargo counter-rotating), drives second angular wheel 34 and is rotated further, and keeps 33 continuous runnings of second semiaxis.
Since energy-storage system according to the present invention used can the control of controlled system a plurality of Storage Units, so, can when wind-force is sufficient, fully, balancedly utilize a plurality of energy storage apparatuss on the one hand, store energy as much as possible; On the other hand, when wind-force is not enough, can be as required or discharge the energy of being stored with being controlled, make the energy of energy storage apparatus can keep wind-driven generator and stablize power as far as possible for a long time and export.Thereby, having utilized the wind-driven generator of energy-storage system of the present invention, can realize to greatest extent continuing and stable electric power output.
With reference to accompanying drawing the present invention has been carried out concrete description above.But, it should be appreciated by those skilled in the art that top specific descriptions only are given by way of example, be used for illustrative purpose, be not to be to be used for limiting protection scope of the present invention.Protection scope of the present invention only is defined by the claims.Have benefited from instruction of the present invention, those skilled in the art can make various modification, revise or replacement the present invention as the case may be under the situation that does not exceed protection domain of the present invention, and these modification, modification or replacement fall into protection scope of the present invention.
Claims (12)
1. an energy-storage system is characterized in that, comprises at least one Storage Unit, and said Storage Unit comprises:
Energy storage apparatus;
Accumulation of energy differential mechanism, said accumulation of energy differential mechanism comprise the input service end that is used to receive input power, be used for the output services end of outputting power and be used for the accumulation of energy working end with said energy storage apparatus exchange energy; With
The controllable brake device, said controllable brake device is incorporated into said accumulation of energy working end, makes that said accumulation of energy working end can be with controllable mode and said energy storage apparatus exchange energy.
2. energy-storage system as claimed in claim 1; It is characterized in that; Said energy-storage system comprises a plurality of said Storage Units that are provided with cascade system, and wherein, the output services end of the accumulation of energy differential mechanism of a Storage Unit is connected in the input service end of the accumulation of energy differential mechanism of Storage Unit subsequently.
3. energy-storage system as claimed in claim 1 is characterized in that, said accumulation of energy differential mechanism comprises:
First semiaxis is used for reception and imports power and constitute said input service end;
First angular wheel integrally formed with said first semiaxis;
Second semiaxis is used for outputting power and constitutes said output services end;
Second angular wheel integrally formed with said second semiaxis;
A plurality of planetary pinions mesh with said first angular wheel and said second angular wheel between said first angular wheel and said second angular wheel and simultaneously;
Support said a plurality of planetary planetary carrier; With
Housing, integrally formed with said planetary carrier, be used for constituting said accumulation of energy working end with said energy storage apparatus exchange energy.
4. energy-storage system as claimed in claim 1 is characterized in that, said accumulation of energy differential mechanism comprises:
First semiaxis is used for reception and imports power and constitute said input service end;
First angular wheel;
Second semiaxis is used for outputting power and constitutes said output services end;
Second angular wheel integrally formed with said second semiaxis;
A plurality of planetary pinions mesh with said first angular wheel and said second angular wheel between said first angular wheel and said second angular wheel and simultaneously;
Planetary carrier supports said a plurality of planetary pinion and integrally formed with said first semiaxis; With
Housing, integrally formed with said first angular wheel, be used for constituting said accumulation of energy working end with said energy storage apparatus exchange energy.
5. like the described energy-storage system of aforementioned each claim, it is characterized in that said controllable brake device comprises:
With the integrally formed brake disc in said accumulation of energy working end and
Can engage and discharge the brake calipers of said brake disc with controlled way.
6. wind-driven generator; The power-transmission system that comprises wind wheel that can under wind, rotate and the power that can receive and transmit said wind wheel generation; It is characterized in that; Said wind-driven generator also comprises the energy-storage system that receives power from said power-transmission system, and said energy-storage system comprises at least one Storage Unit, and said Storage Unit comprises:
Energy storage apparatus,
Accumulation of energy differential mechanism, said accumulation of energy differential mechanism comprise the input service end that receives input power, be used for the output services end of outputting power and be used for the accumulation of energy working end of said energy storage apparatus exchange energy and
The controllable brake device, said controllable brake device is incorporated into said accumulation of energy working end, makes that said accumulation of energy working end can be with controllable mode and said energy storage apparatus exchange energy.
7. wind-driven generator as claimed in claim 6; It is characterized in that; Said wind-driven generator comprises a plurality of said Storage Units that are provided with cascade system, and wherein, the output services end of the accumulation of energy differential mechanism of a Storage Unit is connected in the input service end of the accumulation of energy differential mechanism of Storage Unit subsequently.
8. wind-driven generator as claimed in claim 6 is characterized in that, said accumulation of energy differential mechanism comprises:
First semiaxis is used for reception and imports power and constitute said input service end;
First angular wheel integrally formed with said first semiaxis;
Second semiaxis is used for outputting power and constitutes said output services end;
Second angular wheel integrally formed with said second semiaxis;
A plurality of planetary pinions mesh with said first angular wheel and said second angular wheel between said first angular wheel and said second angular wheel and simultaneously;
Support said a plurality of planetary planetary carrier;
Housing, integrally formed with said planetary carrier, be used for constituting said accumulation of energy working end with said energy storage apparatus exchange energy.
9. wind-driven generator as claimed in claim 6 is characterized in that, said accumulation of energy differential mechanism comprises:
First semiaxis is used for reception and imports power and constitute said input service end;
First angular wheel;
Second semiaxis is used for outputting power and constitutes said output services end;
Second angular wheel integrally formed with said second semiaxis;
A plurality of planetary pinions mesh with said first angular wheel and said second angular wheel between said first angular wheel and said second angular wheel and simultaneously;
Planetary carrier supports said a plurality of planetary pinion and integrally formed with said first semiaxis; With
Housing, integrally formed with said first angular wheel, be used for constituting said accumulation of energy working end with said energy storage apparatus exchange energy.
10. like each described wind-driven generator in the claim 6 to 9, it is characterized in that said controllable brake device comprises:
With the integrally formed brake disc in said accumulation of energy working end and
Can engage and discharge the brake calipers of said brake disc with controlled way.
11., it is characterized in that the output services end of the accumulation of energy differential mechanism of at least one Storage Unit in said at least one Storage Unit is connected with revolution speed control device like each described wind-driven generator in the claim 6 to 9.
12. like each described wind-driven generator in the claim 6 to 9; It is characterized in that; The output services end of the accumulation of energy differential mechanism of at least one Storage Unit in said at least one Storage Unit; Be connected with the second accumulation of energy differential mechanism, the accumulation of energy working end of the said second accumulation of energy differential mechanism can with the second energy storage apparatus exchange energy, the output services end of the said second accumulation of energy differential mechanism is connected with revolution speed control device.
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Application publication date: 20121017 |