CN202228282U - Energy storage unit and energy storage system - Google Patents
Energy storage unit and energy storage system Download PDFInfo
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- CN202228282U CN202228282U CN2011202776818U CN201120277681U CN202228282U CN 202228282 U CN202228282 U CN 202228282U CN 2011202776818 U CN2011202776818 U CN 2011202776818U CN 201120277681 U CN201120277681 U CN 201120277681U CN 202228282 U CN202228282 U CN 202228282U
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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 utility model discloses an energy storage unit and an energy storage system. The energy storage unit comprises a first energy storage device, a power input device, a power output device and a first switching mechanism, wherein the power input device is used for receiving energy and inputting energy to the first energy storage device, the power output device is used for outputting the energy from the first energy storage device, the first switching mechanism is used for selectively enabling the first energy storage device to store energy through the power input device and enabling the first energy storage device to release energy through the power output device. The energy storage unit also comprises a second energy storage device. A plurality of energy storage units form an energy storage system by the connection of the power output devices. The energy storage system formed by the energy storage units not only can remarkably improve the energy storage density, but also can enable the output of the whole energy storage system to be more stable.
Description
Technical field
The utility model relates to a kind of Storage Unit and energy-storage system, in particular for the Storage Unit and the energy-storage system of wind-driven generator.
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.
In traditional wind-driven generator, all be wind energy at first to be passed to generator generate electricity, and then with the power storage that is produced.Typical energy storage apparatus is potential energy accumulation of energy and inertial energy storage device.But, how to improve energy storage density so that when wind-force is not enough, can export energy as far as possible for a long time, always be insoluble problem.
Because wind energy is unstable, the output fluctuation of generator is very big, needs complicacy, expensive power equipment electricity to be exported handled.In order to improve the stability of generator output, the someone proposes, and earlier wind energy is carried out accumulation of energy, and then the supply generator generating.Yet store mechanical can be very difficult to high-density.
The model utility content
In order to improve the density of energy storage; The utility model provides a kind of Storage Unit on the one hand; It comprises first energy storage apparatus, be used to receive and to the power input device of the said first energy storage apparatus intake, be used to export the PTO and first switching mechanism from the energy of said first energy storage apparatus, said first switching mechanism is used for optionally making said first energy storage apparatus to carry out accumulation of energy and make said first energy storage apparatus release ability through said PTO through said power input device.
Preferably; Said first switching mechanism comprises first differential mechanism; Said first differential mechanism has the first input service end, the first output services end and the first Control work end; Wherein, on the said first input service end, form said power input device, on the said first output services end, formed said PTO.Said first switching mechanism also comprises first controllable brake, is used for selectivity and brakes the said first Control work end.
Preferably, said first differential mechanism can comprise first semiaxis and second semiaxis and first housing of rotatably support, and wherein, said first semiaxis has formed said power input device as the said first input service end on it; One in said second semiaxis and said first housing as the first output services end, has formed said PTO on it; In said second semiaxis and said first housing another is as the first Control work end, by said first controllable brake selectivity braking.
Perhaps, said first differential mechanism can comprise first semiaxis and second semiaxis and first housing of rotatably support, and wherein, said first housing has formed said power input device as the said first input service end on it; One in said first semiaxis and said second semiaxis as the first output services end, has formed said PTO on it; In said first semiaxis and said second semiaxis another is as the first Control work end, by said first controllable brake selectivity braking.
Preferably, said first switching mechanism can comprise first clutch, and said first clutch comprises: the first input service end has formed said power input device on the said first input service end; The first output services end has formed the said PTO and the first Control work end on the said first output services end; First clutch control device optionally makes the said first input service end be connected with the said first output services end.
One in said first input service end and the said first output services end can be first clutch dish end, and another in said first input service end and the said first output services end can be the first Flywheel disc end.
Preferably, said first energy storage apparatus can be the potential energy energy storage apparatus.
The energy storage apparatus of the utility model can also comprise second energy storage apparatus and second switching mechanism, and said second energy storage apparatus selectively is connected with said first energy storage apparatus through said second switching mechanism.
Preferably; Said second switching mechanism can comprise second differential mechanism; Said second differential mechanism has the second input service end, the second output services end and the second Control work end; Wherein, the said second input service end is connected with said first energy storage apparatus, and the said second output services end is connected with said second energy storage apparatus.Said second switching mechanism can also comprise second controllable brake, is used for selectivity and brakes the said second Control work end.
Said second differential mechanism can comprise the 3rd semiaxis and the 4th semiaxis and second housing of rotatably support, and wherein, said the 3rd semiaxis is connected with said first energy storage apparatus as the said second input service end; One in said the 4th semiaxis and said second housing as the second output services end, is connected with said second energy storage apparatus; In said the 4th semiaxis and said second housing another is as the second Control work end, by said second controllable brake selectivity braking.
Perhaps, said second differential mechanism can comprise the 3rd semiaxis and the 4th semiaxis and second housing of rotatably support, and wherein, said second housing is connected with said first energy storage apparatus as the said second input service end; One in said the 3rd semiaxis and said the 4th semiaxis as the second output services end, is connected with said second energy storage apparatus; In said the 3rd semiaxis and said the 4th semiaxis another is as the second Control work end, by said second controllable brake selectivity braking.
Preferably, said second switching mechanism can comprise second clutch, and said second clutch can comprise: the second input service end, and the said second input service end is connected with said first energy storage apparatus; The second output services end, the said second output services end is connected with said second energy storage apparatus; Second clutch control device optionally makes the said second input service end be connected with the said second output services end.
One in said second input service end and the said second output services end can be second clutch dish end, and another in said second input service end and the said second output services end can be the second Flywheel disc end.
Storage Unit according to the utility model can also comprise controllable auxiliary power source, and said auxiliary power source is formed on the transmission line that said power input device carries out accumulation of energy.
The utility model also provides a kind of energy-storage system on the other hand, and it comprises a plurality of first energy storage apparatuss, a plurality of power input device, a plurality of PTO and a plurality of first switching mechanism.Wherein, a plurality of power input devices correspond respectively to said a plurality of first energy storage apparatus, are used for receiving respectively and to said a plurality of first energy storage apparatus intakes; A plurality of PTO correspond respectively to said a plurality of first energy storage apparatus, are used for exporting respectively the energy from said a plurality of first energy storage apparatuss, and said a plurality of PTO connect with to said energy-storage system unofficial biography graduating power; A plurality of first switching mechanisms correspond respectively to said a plurality of first energy storage apparatus, are used for optionally making respectively said a plurality of first energy storage apparatus to carry out accumulation of energy and make said a plurality of first energy storage apparatus release ability through said a plurality of PTO through said a plurality of power input device received energies.
Preferably; Said first switching mechanism can comprise first differential mechanism; Said first differential mechanism has the first input service end, the first output services end and the first Control work end; Wherein, on the said first input service end, form said power input device, on the said first output services end, formed said PTO.Said a plurality of first switching mechanism also comprises a plurality of first controllable brakes, is used for the first Control work end that selectivity is braked said a plurality of first differential mechanism at least a portion differential mechanisms, discharges the first Control work end of other first differential mechanism simultaneously.
Wherein, said a plurality of first controllable brakes can correspond respectively to said a plurality of first differential mechanism, and each said first controllable brake selectivity is braked the first Control work end of corresponding one first differential mechanism.
Preferably, said first switching mechanism comprises first clutch, and said first clutch comprises: the first input service end has formed said power input device on the said first input service end; The first output services end has formed the said PTO and the first Control work end on the said first output services end; First clutch control device optionally makes the said first input service end be connected with the said first output services end.
According to the energy-storage system of the utility model, can also comprise a plurality of second energy storage apparatuss and a plurality of second switching mechanism, each said second energy storage apparatus selectively is connected with said first energy storage apparatus through said second switching mechanism.
Preferably; Said second switching mechanism comprises second differential mechanism; Said second differential mechanism has the second input service end, the second output services end and the second Control work end; Wherein, the said second input service end is connected with said first energy storage apparatus, and the said second output services end is connected with said second energy storage apparatus.Said a plurality of second switching mechanism also comprises a plurality of second controllable brakes, is used for the second Control work end that selectivity is braked said a plurality of second differential mechanism at least a portion differential mechanisms, discharges the second Control work end of other second differential mechanism simultaneously.
Wherein, said a plurality of second controllable brakes can correspond respectively to said a plurality of second differential mechanism, and each said second controllable brake selectivity is braked the second Control work end of corresponding one second differential mechanism.
Preferably, said second switching mechanism comprises second clutch, and said second clutch comprises: the second input service end, and the said second input service end is connected with said first energy storage apparatus; The second output services end, the said second output services end is connected with said second energy storage apparatus; Second clutch control device optionally makes the said second input service end be connected with the said second output services end.
According to the energy-storage system of the utility model, can also comprise a plurality of controllable auxiliary power sources, said auxiliary power source is formed on the transmission line that said power input device carries out accumulation of energy.Said controllable auxiliary power source can be a motor.
According to the Storage Unit and the energy-storage system of the utility model, a plurality of energy storage apparatus combinations are used, improved energy storage density greatly.Particularly in a Storage Unit, can comprise two energy storage apparatuss; An energy storage apparatus is released ability through another energy storage apparatus accumulation of energy and to another energy storage apparatus; Not only improved the energy storage density of single Storage Unit, and, make that the output of Storage Unit is more steady.And in the energy-storage system of the utility model, each PTO has annexation, makes that the output of each energy storage apparatus is adjusted, and therefore, the output of whole energy-storage system is more steady.
Particularly comprise the Storage Unit and the system of auxiliary power source, can adjust, consume and store the excess energy that electrical network sends electrical network.As a result, even appear at the long-time not enough situation of wind-force, also can make the output held stationary of whole energy-storage system.
Description of drawings
Fig. 1 is the schematic representation according to the energy-storage system of a kind of mode of execution of the utility model.
Fig. 2 is a kind of differential mechanism schematic cross sectional views that is used for the utility model.
Fig. 3 is the schematic representation according to the Storage Unit of the utility model second mode of execution.
Fig. 4 is the schematic representation according to the Storage Unit of the utility model the 3rd mode of execution.
Embodiment
According to the energy-storage system of the utility model, can comprise a plurality of energy storage apparatuss, a plurality of power input device, a plurality of PTO and a plurality of switching mechanism.Shown in Figure 1 is the energy-storage system according to a kind of preferred implementation of the utility model, and it comprises a plurality of (more than two) Storage Unit.Though, two Storage Units have been shown among the figure,, the utility model obviously is not limited thereto.
In the utility model, switching mechanism is the bang path that is used for selecting power or energy.Therefore, the mechanism that has this function in the existing technology can consider the switching mechanism as the utility model.Below, be the switching mechanism that example is described the utility model with differential mechanism and clutch.
Fig. 2 is an example with first differential mechanism (first switching mechanism) 6, schematically shows a kind of structure of differential mechanism.Differential mechanism can use known various differential mechanisms or differential gear.In illustrated object lesson, differential mechanism 6 comprises two semiaxis (first semiaxis 61, second semiaxis 62) and housing (first housing 63).Differential mechanism 6 also comprises and first semiaxis 61 is integrally formed first angular wheel 603, and integrally formed second angular wheel 602 of second semiaxis 62, at first, second angular wheel 603, between 602 and simultaneously and a plurality of planetary pinions 601 of this two angular wheels engagements and the planetary carrier 606 that supports these planetary pinions 601.Housing 63 surrounds above-mentioned member and integrally formed with planetary carrier 606.
Under the situation of first semiaxis 61,, can control the output of power at housing 63 through optionally braking and discharging second semiaxis 63 as input end.Supposing has certain load on the housing 63, when second semiaxis 63 freely rotated, the power of first semiaxis 61 did not transmit to housing 63 basically; When second semiaxis 63 was braked, first semiaxis, 61 drive shell 63 were rotated.
Similarly, under the situation of housing 63 as input end, if the load on first semiaxis 61 and second semiaxis 62 is roughly the same, so, two semiaxis rotate with roughly the same speed; If second semiaxis 62 is braked, so, the rotation of housing 63 passes to first semiaxis 61; When second semiaxis 62 was in d/d state, first semiaxis 61 can rotate along different directions.
Other differential mechanisms that in the utility model, use also all have identical working principle.
According to the working principle of above-mentioned differential mechanism, in the utility model, two semiaxis and a housing have constituted three working ends, are divided into input service end, output services end and Control work end according to the difference of purposes.Wherein, two semiaxis can be used separately as input service end and output services end, and housing is as the Control work end; Perhaps, housing is as one of input service end and output services end, and two semiaxis are used as other working end.
In the utility model, the quantity determiner that uses before the same term only is that not representing structurally has substantial difference for the convenience on describing.For example, first differential mechanism above-mentioned and following second differential mechanism that will mention all are differential mechanisms, can have identical structure perhaps in those skilled in the art's equivalent configurations." form " and refer to two parts that plural part is single parts, perhaps two parts combine regularly or link together; With regard to rotation, can also be that plural parts can resemble motion the parts.
On first semiaxis 61, form dynamic input device, be used for from Storage Unit outside for example wind energy and be input to first energy storage apparatus of received energy as the first input service end.Power input device can comprise the reception unit 67 that is used for receiving the outside energy and to the energy-delivering input device 68 of first energy storage apparatus.Reception unit 67 can form single parts with input device 68; Perhaps, can be integrally formed in (see figure 2) on first semiaxis 61 respectively; Perhaps, be integrally formed in respectively on first semiaxis 61 and second differential mechanism (switching mechanism).Depend on the concrete application that form of energy to be stored and the utility model are arranged, reception unit 67 can be various mechanisms such as gear, belt wheel, cable drum, bent axle.
In specific embodiment shown in Figure 1, first energy storage apparatus is the weight energy storage apparatus as a kind of potential energy energy storage apparatus, comprises weight 14, weight rope 12, pulley 20.Therewith correspondingly, can on first semiaxis 61, form cable drum (input device) 68.Weight rope 12 1 ends are fixed on the weight 14, and the other end is walked around pulley 20 and is wrapped on the cable drum 68.So first energy storage apparatus and first semiaxis 61 couple together.It will be understood by those skilled in the art that illustrated weight energy storage apparatus is only used for illustrative purposes, according to concrete field condition and designing requirement, the weight energy storage apparatus can have various form, comprises various pulley structure (or sheave block).Those skilled in the art can also understand corresponding to different energy storage apparatuss, different Placements to be arranged, and for example can first semiaxis and flywheel energy storage device be coupled together through train of gearings.
On first housing 63, form dynamic output unit, for example gear 64 (see figure 2)s as the first output services end.Gear 64,74 on first housing 63,73 of each first differential mechanism 6,7 for example engagement sequentially constitutes pinion unit, is used for outputting power.Because a plurality of gears form load each other, these loads react on first energy storage apparatus, can regulate the speed that first energy storage apparatus is released ability, so pinion unit can produce stable power output.
Reference character the 66,76,86, the 96th among Fig. 2, the controllable brake device; For example the lock of electric power, fluid power or strength driving clamps; Thereby it can accept control selectivity and the brake lining 65 (referring to Fig. 2), 75,85,95 engagements that are integrally formed on each semiaxis 62,72,82,92 (as the Control work end); So each the corresponding semiaxis to being formed with brake lining is braked, and stops the rotation of each corresponding semiaxis.When each lock pincers separated with brake lining, each corresponding semiaxis was released and can freely rotates.The utility model does not relate to the improvement to braking device, and the various braking device that can be controlled well known by persons skilled in the art can be considered to be used for relevant semiaxis is optionally braked.
In addition, though in the embodiment shown in fig. 1, each second semiaxis 62 and 72 of first differential mechanism 6,7 all corresponding independent controllable brake device 66,76,, the utility model is not limited thereto.In a kind of replacement mode of execution; A plurality of controllable brake devices can be not corresponding with a plurality of first differential mechanisms respectively; But these controllable brake devices can selectivity second semiaxis of a braking part the firstth differential mechanism, discharge second semiaxis of other first differential mechanism simultaneously.For example, second semiaxis 62 and 72 can clamp by a shared controlled lock, and when these lock pincers were moved to semiaxis 62 1 sides, braking semiaxis 62 discharged semiaxis 72 simultaneously; Otherwise when these lock pincers were moved to semiaxis 72 1 sides, braking semiaxis 72 discharged semiaxis 62 simultaneously.
In a kind of replacement mode of execution of the utility model, for example PTO such as gear can be integrally formed on second semiaxis (as the output services end), and the controllable brake device can carry out the selectivity braking to first housing (as the Control work end).Certainly, the working end character of two semiaxis can be exchanged.
Next, with reference to Fig. 1 Storage Unit and energy-storage system working principle according to the utility model are described.
When two first energy storage apparatuss all need accumulation of energy; First semiaxis 61 of two first differential mechanisms 6,7 and 71 receives wind energy homenergic and rotation from the outside through reception unit 67 and 77; Thereby promote weight 14 and 15 through cable drum 68,78 (input device), two first energy storage apparatuss are carried out accumulation of energy.At this moment, control first braking device 66,76 and discharge two second semiaxis 62,72.Because it is asynchronous that pinion unit (64,74) is used for driving the driving force of other equipment such as generator for example and first semiaxis, so in pinion unit, have certain load usually.Because two second semiaxis 62,72 freely rotate, so, in the accumulation of energy process of first energy storage apparatus, can be not influential to train of gearings.
When weight 14 and 15 fell, two first energy storage apparatuss discharged the energy of storage, drove first semiaxis 61 and 71 and rotated.At this moment, control two the 4th semiaxis 62,72 of first braking device, 66,76 brakings, so the gear 64,74 on first housing 63,73 and the housing rotates the outside outputting power of train of gearings.Be appreciated that the load meeting in this train of gearings reacts on weight 14 and 15, thereby regulate the rate of descent of weight 14 and 15.This action and reaction between train of gearings (power output) and the weight (energy storage apparatus) makes that the output of train of gearings is more stable.
When an energy storage apparatus accumulation of energy and another energy storage apparatus release can the time, for example weight 14 needs to promote, and weight 15 falls, and controls first break 66 to discharge second semiaxis 62, and controls first break, 76 brakings, second semiaxis 72.
It will be understood by those skilled in the art that when the shared controllable brake of some differential mechanisms, in these differential mechanisms, can only be a part of differential mechanism and another part differential mechanism alternately be operated in accumulation of energy and release can situation, accumulation of energy simultaneously or release ability.Yet this situation is a kind of mode of steadily utilizing wind energy that is particularly conducive to.
As the further preferred mode of the utility model, Storage Unit can also comprise second energy storage apparatus, is used for further improving energy storage density, the power output that obtain more steadily, continues.Second energy storage apparatus can be identical with first energy storage apparatus, also can be different.
In the illustrated embodiment, second energy storage apparatus is the flywheel energy storage device as a kind of inertial energy storage device, comprises flywheel.Be example with reference to Fig. 1 with second differential mechanism (second COMM communication) 8 below, the relation of second energy storage apparatus and first energy storage apparatus is described.
The utility model comprises that also second differential mechanism, 8, the second differential mechanisms 8 and first differential mechanism are similar, comprises two semiaxis (the 3rd semiaxis 81 and the 4th semiaxis 82) and housing (second housing 83) equally.
The 3rd semiaxis 81 can be integrally formed with first semiaxis 61 of first differential mechanism 6, with when giving the first energy storage apparatus accumulation of energy, gives flywheel 16 accumulation of energys.The 4th semiaxis 82 is optionally braked by the second controllable brake device 86.Flywheel 16 is formed on second housing 83.
Though described the semiaxis of second differential mechanism 8 and the specific nature of these working ends of housing above particularly; But; Those skilled in the art should be understood that; Second differential mechanism is identical with first differential mechanism, and the job specification of its each working end is to confirm on demand, is not limited to following particular condition.In a kind of substitute mode, flywheel can be formed on the 4th semiaxis, and second housing is optionally braked by the second controllable brake device.
When first energy storage apparatus release can the time and need not give flywheel energy storage the time, control second braking device 86 and discharge the 4th semiaxis.When giving in the process of the first energy storage apparatus accumulation of energy, if the wind energy that is for example received is excessive, the rotating speed of the 3rd semiaxis 81 is higher than the accumulation of energy speed of flywheel, then controls second braking device, 86 brakings the 4th semiaxis, and at this moment, the 3rd semiaxis transmits energy to flywheel 16; If wind-force is not enough to the first energy storage apparatus accumulation of energy; Promptly the rotating speed of the 3rd semiaxis 81 is lower than the accumulation of energy speed of flywheel; Then still control second braking device, 86 brakings the 4th semiaxis, at this moment, flywheel 16 transmits energy to the 3rd semiaxis 81; Keep or improve the rotating speed of the 3rd semiaxis 81, thereby to the first energy storage apparatus accumulation of energy.
Four Control work ends have been comprised in the above in the described energy-storage system.It will be understood by those skilled in the art that according to various actual conditionss these four Control work ends can produce multiple accumulation of energy, release the mode of operation of ability, introduce no longer one by one here.
Fig. 3 shows the schematic representation according to the Storage Unit of the utility model second mode of execution.Compare with the Storage Unit in the energy-storage system shown in Figure 1, in mode of execution shown in Figure 3, replaced by first clutch 160 and 180 as first differential mechanism 6 of first switching mechanism and second switching mechanism and second differential mechanism 8.In Fig. 1 and Fig. 3, identical structure or parts are represented with identical reference character.
Clutch is a kind of mechanism that two parts are selectively coupled together of being used for commonly known in the art, the utility model repeat no more its working principle and concrete structure.
Similar with the Storage Unit that uses differential mechanism, use the Storage Unit of clutch can comprise the clutch control device that input service end, output services end and optionally control input, output services termination are closed.
With reference to Fig. 3.First clutch 160 comprises first semiaxis 161 and is formed on the first clutch dish 163 (also can be Flywheel disc in other embodiments) on first semiaxis 161, constituted the first input service end (being the clutch disk end).On first semiaxis 161, also form the power input device that constitutes by reception unit 67 and input device 68.First clutch 160 also comprises second semiaxis 162 and is integrally formed in first Flywheel disc 164 on second semiaxis 162, constituted the first output services end (being the Flywheel disc end).On second semiaxis 162, also form gear 64 as PTO.First clutch control device 166 can selectivity make the first clutch dish 163 and first Flywheel disc 164 be bonded together, thereby makes first and second semiaxis to rotate integratedly.
When needs are given first energy storage apparatus (weight 14) and second energy storage apparatus (flywheel 16) accumulation of energy simultaneously; First clutch control device, the 166 control first clutch dishes 163 and first Flywheel disc were opened in 164 minutes, and second clutch control device, the 186 control second clutch dishes 183 and second Flywheel disc 184 engage.
When first energy storage apparatus (weight 14) is released ability; First clutch control device, the 166 control first clutch dishes 163 and first Flywheel disc 164 engage, thereby the first energy storage apparatus energy stored (potential energy of weight 14) is passed to the gear 64 as PTO.The train of gearings that gear 64 or a plurality of gear 64 constitute is outwards exported the energy that obtains.
When first energy storage apparatus (weight 16) need accumulation of energy and second energy storage apparatus (flywheel 16) release can the time, second clutch control device 186 control second clutch dishes 183 and second Flywheel disc, 184 joints, energy passes to weight 16 from flywheel 16, is used for promoting weight 16.
Fig. 4 shows the Storage Unit of the utility model the 3rd mode of execution, and wherein, first and second switching mechanism is realized with differential mechanism and clutch respectively.Though shown in Fig. 3 is that first switching mechanism is a differential mechanism, second switching mechanism is a clutch,, vice versa.
Though in the Storage Unit of the utility model of describing, used first and/or second energy storage apparatus in the above,, according to the utility model, can also connect the 3rd, the 4th and more energy storage apparatus according to the mode of above-mentioned instruction.
Especially preferred embodiment can carry out at the power input device of Storage Unit on the transmission line of accumulation of energy controllable auxiliary power source being set as a kind of, be used for auxiliary power input being provided to first and/or second energy storage apparatus." power input device carries out the transmission line of accumulation of energy " refers to from power input device and begins to the whole energy of a last energy storage apparatus or the bang path of power.Auxiliary power source can be arranged on any position on this transmission line.In a kind of embodiment shown in Figure 4, can be integrally formed as the output shaft of the motor 69 of controllable auxiliary power source with the 4th semiaxis 182 of second clutch 180.But as the replacement mode of execution, the output shaft of motor 69 also can be integrally formed with first semiaxis 61 of the 3rd semiaxis 181 or first differential mechanism 6.Similarly, in mode of execution shown in Figure 3, the output shaft of motor 69 can be integrally formed with the 4th semiaxis 182 or the 3rd semiaxis 181 or first semiaxis 161; In mode of execution shown in Figure 1, the output shaft of motor 69 can be integrally formed with the 4th semiaxis 82 (92) or the 3rd semiaxis 81 (91) or first semiaxis 61 (71).
Below, explain the advantage of this mode of execution.At present, worldwide, it is very low that the utilization ratio of electrical network is actually, and one of the main reasons is that the need for electricity at night is usually much smaller than daytime.For example, the electric energy that is provided at U.S.'s electrical network can only utilize 60%, and China the electrical network utilization ratio 40%, remaining energy has almost wasted.In the mode of execution of Fig. 4, can come to the energy storage apparatus accumulation of energy through motor 69 with the electrical network electric energy that is wasted usually, for example be used for promoting the rotating speed of weight 14 and/or raising (or maintenance) flywheel 16.Do like this, help on the one hand solving the wind energy instability and cause accumulation of energy to be not enough to be used to provide sometimes stablize the problem of power output, simultaneously, to have consumed the unnecessary electric energy of electrical network generation.
Add motor 69 and also have an advantage.When motor 69 was not worked, its rotor was equivalent to a flywheel, can be used as an energy storage apparatus, helped further improving energy storage density.
Though above the principle of the utility model of describing with reference to illustrated embodiment,, these contents should not be construed as the restriction to the utility model protection domain.For example, can between flywheel and corresponding connecting end (housing or semiaxis), speed changer be set.The protection domain of the utility model only is defined by the claims.Have benefited from the instruction of the utility model; Those skilled in the art can make various modification, revise or replacement the utility model as the case may be under the situation that does not exceed the utility model protection domain, and these modification, modification or replacement fall into the protection domain of the utility model.
Claims (32)
1. a Storage Unit is characterized in that, comprising:
First energy storage apparatus;
Power input device is used for receiving and to the said first energy storage apparatus intake;
PTO is used to export the energy from said first energy storage apparatus;
First switching mechanism is used for optionally making said first energy storage apparatus to carry out accumulation of energy and make said first energy storage apparatus release ability through said PTO through said power input device.
2. Storage Unit as claimed in claim 1 is characterized in that, said first switching mechanism comprises:
First differential mechanism; Said first differential mechanism has the first input service end, the first output services end and the first Control work end; Wherein, On the said first input service end, form said power input device, on the said first output services end, formed said PTO;
First controllable brake is used for selectivity and brakes the said first Control work end.
3. Storage Unit as claimed in claim 2 is characterized in that, said first differential mechanism comprises first semiaxis and second semiaxis and first housing of rotatably support,
Wherein, said first semiaxis has formed said power input device as the said first input service end on it,
One in said second semiaxis and said first housing has formed said PTO as the first output services end on it,
In said second semiaxis and said first housing another is as the first Control work end, by said first controllable brake selectivity braking.
4. Storage Unit as claimed in claim 2 is characterized in that, said first differential mechanism comprises first semiaxis and second semiaxis and first housing of rotatably support,
Wherein, said first housing has formed said power input device as the said first input service end on it,
One in said first semiaxis and said second semiaxis has formed said PTO as the first output services end on it,
In said first semiaxis and said second semiaxis another is as the first Control work end, by said first controllable brake selectivity braking.
5. Storage Unit as claimed in claim 1 is characterized in that, said first switching mechanism comprises first clutch, and said first clutch comprises:
The first input service end has formed said power input device on the said first input service end;
The first output services end has formed the said PTO and the first Control work end on the said first output services end;
First clutch control device optionally makes the said first input service end be connected with the said first output services end.
6. Storage Unit as claimed in claim 5; It is characterized in that; One in said first input service end and the said first output services end is first clutch dish end, and another in said first input service end and the said first output services end is the first Flywheel disc end.
7. Storage Unit as claimed in claim 1 is characterized in that, said first energy storage apparatus is the potential energy energy storage apparatus.
8. like each described Storage Unit in the claim 1 to 7, it is characterized in that, also comprise second energy storage apparatus and second switching mechanism, said second energy storage apparatus selectively is connected with said first energy storage apparatus through said second switching mechanism.
9. Storage Unit as claimed in claim 8 is characterized in that, said second switching mechanism comprises:
Second differential mechanism; Said second differential mechanism has the second input service end, the second output services end and the second Control work end; Wherein, the said second input service end is connected with said first energy storage apparatus, and the said second output services end is connected with said second energy storage apparatus;
Second controllable brake is used for selectivity and brakes the said second Control work end.
10. Storage Unit as claimed in claim 9 is characterized in that, said second differential mechanism comprises the 3rd semiaxis and the 4th semiaxis and second housing of rotatably support,
Wherein, said the 3rd semiaxis is connected with said first energy storage apparatus as the said second input service end,
One in said the 4th semiaxis and said second housing is connected with said second energy storage apparatus as the second output services end,
In said the 4th semiaxis and said second housing another is as the second Control work end, by said second controllable brake selectivity braking.
11. Storage Unit as claimed in claim 9 is characterized in that, said second differential mechanism comprises the 3rd semiaxis and the 4th semiaxis and second housing of rotatably support,
Wherein, said second housing is connected with said first energy storage apparatus as the said second input service end,
One in said the 3rd semiaxis and said the 4th semiaxis is connected with said second energy storage apparatus as the second output services end,
In said the 3rd semiaxis and said the 4th semiaxis another is as the second Control work end, by said second controllable brake selectivity braking.
12. Storage Unit as claimed in claim 8 is characterized in that, said second switching mechanism comprises second clutch, and said second clutch comprises:
The second input service end, the said second input service end is connected with said first energy storage apparatus;
The second output services end, the said second output services end is connected with said second energy storage apparatus;
Second clutch control device optionally makes the said second input service end be connected with the said second output services end.
13. Storage Unit as claimed in claim 12; It is characterized in that; One in said second input service end and the said second output services end is second clutch dish end, and another in said second input service end and the said second output services end is the second Flywheel disc end.
14., it is characterized in that like each described Storage Unit in the claim 1 to 7, also comprise controllable auxiliary power source, said auxiliary power source is formed on the transmission line that said power input device carries out accumulation of energy.
15. Storage Unit as claimed in claim 14 is characterized in that, said controllable auxiliary power source is a motor.
16. Storage Unit as claimed in claim 8 is characterized in that, also comprises controllable auxiliary power source, said auxiliary power source is formed on the transmission line that said power input device carries out accumulation of energy.
17. Storage Unit as claimed in claim 16 is characterized in that, said controllable auxiliary power source is a motor.
18. Storage Unit as claimed in claim 8 is characterized in that, said second energy storage apparatus is an inertial energy storage device.
19. an energy-storage system is characterized in that, comprising:
A plurality of first energy storage apparatuss;
A plurality of power input devices correspond respectively to said a plurality of first energy storage apparatus, are used for receiving respectively and to said a plurality of first energy storage apparatus intakes;
A plurality of PTO correspond respectively to said a plurality of first energy storage apparatus, are used for exporting respectively the energy from said a plurality of first energy storage apparatuss, and said a plurality of PTO connect with to said energy-storage system unofficial biography graduating power;
A plurality of first switching mechanisms; Correspond respectively to said a plurality of first energy storage apparatus, be used for optionally making respectively said a plurality of first energy storage apparatus to carry out accumulation of energy and make said a plurality of first energy storage apparatus release ability through said a plurality of PTO through said a plurality of power input device received energies.
20. energy-storage system as claimed in claim 19; It is characterized in that; Said first switching mechanism comprises first differential mechanism, and said first differential mechanism has the first input service end, the first output services end and the first Control work end, wherein; On the said first input service end, form said power input device, on the said first output services end, formed said PTO;
Said a plurality of first switching mechanism also comprises a plurality of first controllable brakes, is used for the first Control work end that selectivity is braked said a plurality of first differential mechanism at least a portion differential mechanisms, discharges the first Control work end of other first differential mechanism simultaneously.
21. energy-storage system as claimed in claim 20; It is characterized in that; Said a plurality of first controllable brake corresponds respectively to said a plurality of first differential mechanism, and each said first controllable brake selectivity is braked the first Control work end of corresponding one first differential mechanism.
22. energy-storage system as claimed in claim 19 is characterized in that, said PTO is the gear that is integrally formed on the said first output services end, and the gear of said a plurality of first differential mechanisms constitutes pinion unit.
23. energy-storage system as claimed in claim 19 is characterized in that, said first switching mechanism comprises first clutch, and said first clutch comprises:
The first input service end has formed said power input device on the said first input service end;
The first output services end has formed the said PTO and the first Control work end on the said first output services end;
First clutch control device optionally makes the said first input service end be connected with the said first output services end.
24. energy-storage system as claimed in claim 23 is characterized in that, said PTO is the gear that is integrally formed on the said first output services end, and the gear of said a plurality of first differential mechanisms constitutes pinion unit.
25. like each described energy-storage system in the claim 19 to 24; It is characterized in that; Also comprise a plurality of second energy storage apparatuss and a plurality of second switching mechanism, each said second energy storage apparatus selectively is connected with said first energy storage apparatus through said second switching mechanism.
26. energy-storage system as claimed in claim 25; It is characterized in that; Said second switching mechanism comprises second differential mechanism, and said second differential mechanism has the second input service end, the second output services end and the second Control work end, wherein; The said second input service end is connected with said first energy storage apparatus, and the said second output services end is connected with said second energy storage apparatus;
Said a plurality of second switching mechanism also comprises a plurality of second controllable brakes, is used for the second Control work end that selectivity is braked said a plurality of second differential mechanism at least a portion differential mechanisms, discharges the second Control work end of other second differential mechanism simultaneously.
27. energy-storage system as claimed in claim 26; It is characterized in that; Said a plurality of second controllable brake corresponds respectively to said a plurality of second differential mechanism, and each said second controllable brake selectivity is braked the second Control work end of corresponding one second differential mechanism.
28. energy-storage system as claimed in claim 25 is characterized in that, said second switching mechanism comprises second clutch, and said second clutch comprises:
The second input service end, the said second input service end is connected with said first energy storage apparatus;
The second output services end, the said second output services end is connected with said second energy storage apparatus;
Second clutch control device optionally makes the said second input service end be connected with the said second output services end.
29., it is characterized in that like each described energy-storage system in the claim 19 to 24, also comprise a plurality of controllable auxiliary power sources, said auxiliary power source is formed on the transmission line that said power input device carries out accumulation of energy.
30. energy-storage system as claimed in claim 29 is characterized in that, said controllable auxiliary power source is a motor.
31. energy-storage system as claimed in claim 25 is characterized in that, also comprises a plurality of controllable auxiliary power sources, said auxiliary power source is formed on the transmission line that said power input device carries out accumulation of energy.
32. energy-storage system as claimed in claim 31 is characterized in that, said controllable auxiliary power source is a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202776818U CN202228282U (en) | 2011-07-27 | 2011-07-27 | Energy storage unit and energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202776818U CN202228282U (en) | 2011-07-27 | 2011-07-27 | Energy storage unit and energy storage system |
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| CN202228282U true CN202228282U (en) | 2012-05-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900624A (en) * | 2011-07-27 | 2013-01-30 | 高则行 | Energy storage unit and energy storage system |
| CN106523265A (en) * | 2016-09-13 | 2017-03-22 | 北京驹创鼎盛科技发展有限公司 | Horizontal shaft type wind turbine and wind power unit and traction transmission system |
| CN108150622A (en) * | 2017-12-15 | 2018-06-12 | 黄得锋 | A kind of accumulating mechanism and its application |
| CN109695552A (en) * | 2017-12-15 | 2019-04-30 | 黄得锋 | A kind of accumulating mechanism and its application |
-
2011
- 2011-07-27 CN CN2011202776818U patent/CN202228282U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900624A (en) * | 2011-07-27 | 2013-01-30 | 高则行 | Energy storage unit and energy storage system |
| CN106523265A (en) * | 2016-09-13 | 2017-03-22 | 北京驹创鼎盛科技发展有限公司 | Horizontal shaft type wind turbine and wind power unit and traction transmission system |
| CN108150622A (en) * | 2017-12-15 | 2018-06-12 | 黄得锋 | A kind of accumulating mechanism and its application |
| CN109695552A (en) * | 2017-12-15 | 2019-04-30 | 黄得锋 | A kind of accumulating mechanism and its application |
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