CN205725118U - A kind of energy-accumulating power station - Google Patents

A kind of energy-accumulating power station Download PDF

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Publication number
CN205725118U
CN205725118U CN201620377406.6U CN201620377406U CN205725118U CN 205725118 U CN205725118 U CN 205725118U CN 201620377406 U CN201620377406 U CN 201620377406U CN 205725118 U CN205725118 U CN 205725118U
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CN
China
Prior art keywords
ultracapacitor
lithium titanate
energy
electric energy
titanate battery
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620377406.6U
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Chinese (zh)
Inventor
章小康
瞿志华
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Easy Access (beijing) Energy Storage Technology Co Ltd
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Easy Access (beijing) Energy Storage Technology Co Ltd
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Priority to CN201620377406.6U priority Critical patent/CN205725118U/en
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Publication of CN205725118U publication Critical patent/CN205725118U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The utility model discloses a kind of energy-accumulating power station, including solar photovoltaic assembly, ultracapacitor, lithium titanate battery, two-way DC/DC changer and DC/AC inverter;Solar photovoltaic assembly is connected with ultracapacitor;Ultracapacitor is connected with two-way DC/DC changer and DC/AC inverter by the first controller;Two-way DC/DC changer is connected with lithium titanate battery;DC/AC inverter is connected to electrical network.In technique scheme, ultracapacitor and lithium titanate battery is make use of to carry out coordinating storage electric energy, the electric energy that can be received by solar photovoltaic assembly when low power consumption and convert stores respectively to ultracapacitor and lithium titanate battery, and can by the electric energy in electrical network in ultracapacitor is delivered to lithium titanate battery in case of need.And by ultracapacitor, electrical network can be carried out carrying electric energy when peak of power consumption, with the electric energy having previously been stored in lithium titanate battery, ultracapacitor is carried out electric energy supplement, enable ultracapacitor to have lasting ability to transmit electricity.

Description

A kind of energy-accumulating power station
Technical field
This utility model relates to technical field of photovoltaic power generation, particularly relates to a kind of energy-accumulating power station.
Background technology
In prior art, photovoltaic generation application is more and more extensive, and photovoltaic generation is according to photovoltaic effect principle, utilizes Solar energy is converted into electric energy by solar cell.Whether independent use is still generated electricity by way of merging two or more grid systems, and photovoltaic generating system is main Being made up of solar panel (assembly), controller and inverter three parts, they are mainly made up of electronic devices and components.But light Volt generating is affected very big by weather, and photovoltaic generation is merely able to carry out by day, and during peak of power consumption in evening, photovoltaic plant can not be sent out Electricity, so it is not all right for not having energy storage device.
In traditional batteries to store energy technical scheme, use lead-acid battery or lithium iron battery as energy storage device, but Owing to the photovoltaic generation quality of power supply is the most unstable, surge current is very big on the impact of this type of battery life, and major part is first by photovoltaic Power-generation inversion becomes exchange, then by being rectified into direct current to energy-storage travelling wave tube charging.China Patent No. is 201210529199.8 Patent discloses a kind of HVDC Light that uses, the technical scheme of ferric phosphate lithium cell storage electricity;China Patent No. is The patent of 201410125496.5 discloses a kind of technical scheme using secondary cell and super capacitor hybrid energy-storing;China is specially Profit number be 201510425930.6 patent disclose and a kind of use ultracapacitor and lead-acid battery or iron cell hybrid energy-storing The technical scheme of mode.But no matter which kind of mode to store electric energy based on, although ultracapacitor plays the buffering merit to electric current Can, but its storage capacity is the least, and once ultracapacitor is in full power state, it is impossible to play its pooling feature, it addition, energy storage Device is also required to the strongest high-power charge characteristic and longer service life.
Utility model content
The purpose of this utility model is that in solution prior art, photovoltaic power generation equipment electrical power storage is little, makes ultracapacitor not Can persistently play short shortcoming in the service life of the cushioning effect to electric current and energy storage device.
In order to realize above-mentioned technical purpose, this application provides following technical scheme:
A kind of energy-accumulating power station, including solar photovoltaic assembly, ultracapacitor, lithium titanate battery, two-way DC/DC changer With DC/AC inverter;
Described solar photovoltaic assembly is connected with described ultracapacitor;
Described ultracapacitor is connected with described two-way DC/DC changer and DC/AC inverter by the first controller;
Described two-way DC/DC changer is connected with described lithium titanate battery;
Described DC/AC inverter is connected to electrical network.
Further, in one embodiment, described energy-accumulating power station also includes header box;
Described header box one end connects the outfan of described solar photovoltaic assembly, and the other end of described header box connects institute State the input of ultracapacitor.
Further, in one embodiment, by the between described two-way DC/DC changer and described lithium titanate battery Two controllers control, and are used for realizing charging mutually between described lithium titanate battery and described ultracapacitor.
Further, in one embodiment, by the 3rd controller control between described DC/AC inverter and described electrical network System, is used for realizing electrical network and charges to described ultracapacitor.
In technique scheme, ultracapacitor and lithium titanate battery is make use of to carry out coordinating storage electric energy, it is possible to The electric energy received by solar photovoltaic assembly during low power consumption and convert stores respectively to ultracapacitor and lithium titanate battery, And can by electric energy in electrical network in ultracapacitor is delivered to lithium titanate battery in case of need, and during low power consumption The electricity charge are relatively low, on the one hand can save cost, on the other hand can alleviate the power supply burden of peak of power consumption.And when peak of power consumption Can carry out carrying electric energy to electrical network by ultracapacitor, with having previously been stored in the electric energy in lithium titanate battery to super capacitor Device carries out electric energy supplement, enables ultracapacitor to have lasting ability to transmit electricity, it is ensured that the need for electricity of user.Improve with this The charge storage ability of energy-accumulating power station, increases service life.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system structure schematic diagram of energy-accumulating power station described herein.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, real below in conjunction with this utility model Execute the accompanying drawing in example, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described Embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, The every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly falls into this reality By novel protected scope.
Little in order to solve photovoltaic power generation equipment electrical power storage in prior art, make ultracapacitor persistently not play electricity The cushioning effect of stream and short shortcoming in service life of energy storage device, this application provides a kind of energy-accumulating power station, including the sun Can photovoltaic module 1, ultracapacitor 3, lithium titanate battery 8, two-way DC/DC changer 7 and DC/AC inverter 5;Described solar energy Photovoltaic module 1 is connected with described ultracapacitor 3;The solar energy that solar photovoltaic assembly 1 receives can be converted into electric energy; Described ultracapacitor 3 is connected with described two-way DC/DC changer 7 and DC/AC inverter 5 by the first controller 4;Described double It is connected with described lithium titanate battery 8 to DC/DC changer 7;Described DC/AC inverter 5 is connected to electrical network 6, the first controller 4 with Two-way DC/DC changer 7 connects, and directly the electric energy in ultracapacitor 3 can be delivered to electrical network 6, additionally it is possible to become by electric energy Unidirectional current is delivered to carry out in lithium titanate battery 8 storage of electric energy, and the negative pole of lithium titanate battery 8 uses zero strain material, can make The performance of discharge and recharge improves, it is possible to carrying out the discharge and recharge of 10 multiplying powers, the life-span also reaches more than 20000 times, can meet photovoltaic very well straight The energy-storage travelling wave tube requirement of stream transmission of electricity;First controller 4 is connected with DC/AC inverter 5, can be sent by solar photovoltaic assembly 1 Unidirectional current, through ultracapacitor 3, then is reverse into alternating current by DC/AC inverter and is delivered to electrical network 6, thus can reduce by The unstability impact to electrical network 6 in solar photovoltaic assembly 1 generating.
Further, in one embodiment, described energy-accumulating power station also includes header box 2;
Described header box 2 one end connects the outfan of described solar photovoltaic assembly 1, and the other end of described header box 2 is even Connect the input of described ultracapacitor 3.The unidirectional current that solar photovoltaic assembly 1 sends, is directly inputted into super through header box 2 In capacitor 3, unidirectional current is delivered in lithium titanate battery 8 store by ultracapacitor 3 further through two-way DC/DC changer 7, During electric energy transmission, all use unidirectional current to be transmitted, the consumption of electric energy can be reduced compared to alternating current transmission, improve Electric energy conveying quality.
Further, in one embodiment, pass through between described two-way DC/DC changer 7 and described lithium titanate battery 8 Second controller 9 controls, and is used for realizing charging mutually between described lithium titanate battery 8 and described ultracapacitor 3.This be for In actually used, when ultracapacitor 3 feeds, can be controlled by second controller 9, will be stored in lithium titanate battery 8 Electric energy be delivered to ultracapacitor 3 by two-way DC/DC changer 7 it be charged.
Further, in one embodiment, by the 3rd controller between described DC/AC inverter 5 and described electrical network 10 control, and are used for realizing electrical network 6 and charge to described ultracapacitor 3.This is in actual use, when being in low power consumption, The electric energy expense of electrical network 6 now is low, the most just can controlling the electricity in electrical network 6 low for expense by the 3rd controller 10 Can reversely be delivered in ultracapacitor 3, store in being delivered to lithium titanate battery 8 through ultracapacitor 3, in case suitably When use, this is also to save the energy, saves a kind of method of expenditure, and has significant effect;On the other hand also can Enough alleviate the burden of Peak power use.
By technique scheme, in use different modes can be selected to carry out electric energy according to actual situation Storage and use;Our life can exist the time period of peak of power consumption and low power consumption, when running into peak of power consumption, super Electric energy can be reverse into alternating current and be delivered to electrical network 6 and be powered by capacitor 3, to meet the need for electricity of user, and when super The when that level capacitor 3 feeding, the electric energy itself stored tails off, and this is the electricity that lithium titanate battery 8 just can will prestore Can be delivered in ultracapacitor 3 ultracapacitor 3 is charged, to support the continuous discharge of ultracapacitor 3, meet and use The long need for electricity in family.And when low power consumption, the at this moment need for electricity of user less than height, so general power supply Ability just disclosure satisfy that, so now the solar energy received by solar photovoltaic assembly 1 will be converted by ultracapacitor 3 Become electric energy, be delivered in lithium titanate battery 8 store, can have enough power supply capacities when need for electricity increases; Meanwhile, electricity charge during low power consumption are relatively low, now through ultracapacitor 3, electric energy relatively low for the electricity charge in electrical network 6 are delivered to metatitanic acid Lithium battery 8 stores, in order to can use in peak of power consumption, on the one hand can save cost, on the other hand also be able to delay Solve power supply burden during peak of power consumption.
During specifically used, solar energy is changed into electric energy and is delivered to described super by described solar photovoltaic assembly 1 Capacitor 3;In order to obtain regenerative resource, store and use.
Electric energy is delivered to electrical network 6 by the control of the first controller 4 and supplies by described ultracapacitor 3 when peak of power consumption Electricity, is delivered to electric energy when low power consumption in lithium titanate battery 8 store;First controller 4 just for when peak of power consumption with 3rd controller 10 matches, and electric energy is delivered to electrical network 6 to meet user power utilization demand, the first controller 4 be also used for Match with second controller 9 during electricity low ebb, be delivered to the electric energy in ultracapacitor 3 in lithium titanate battery 8 store, In case of need.
When described ultracapacitor 3 feeds, described lithium titanate battery 8 passes through the control of the first controller 4 to super electricity Container 3 charges;Now, second controller 9 can coordinate the first controller 4, by defeated for the electric energy stored in advance in lithium titanate battery 8 Deliver to, in ultracapacitor 3, ultracapacitor 3 be charged, to support that ultracapacitor 3 continues power transmission to electrical network 6, meet user Need for electricity.
Described 3rd controller 10 also can control described electrical network 6 and carry electric energy to described ultracapacitor, with by described Ultracapacitor 3 is by the electrical power storage of electrical network to lithium titanate battery 8.Here it is in actual use, can be when low power consumption Section, stores electric energy relatively low for the electricity charge in electrical network in ultracapacitor 3 is delivered to lithium titanate battery 8, in order to Ke Yi Peak of power consumption uses, on the one hand can save cost, on the other hand also be able to alleviate power supply burden during peak of power consumption.
Above energy-accumulating power station provided by the utility model, energy storage method are described in detail.Used herein Principle of the present utility model and embodiment are set forth by specific case, and the explanation of above example is only intended to help reason Solve method of the present utility model and core concept thereof.It should be pointed out that, for those skilled in the art, not On the premise of departing from this utility model principle, it is also possible to this utility model is carried out some improvement and modification, these improve and repair Decorations also fall in this utility model scope of the claims.

Claims (4)

1. an energy-accumulating power station, it is characterised in that include solar photovoltaic assembly, ultracapacitor, lithium titanate battery, two-way DC/DC changer and DC/AC inverter;
Described solar photovoltaic assembly is connected with described ultracapacitor;
Described ultracapacitor is connected with described two-way DC/DC changer and DC/AC inverter by the first controller;
Described two-way DC/DC changer is connected with described lithium titanate battery;
Described DC/AC inverter is connected to electrical network.
2. energy-accumulating power station as claimed in claim 1, it is characterised in that also include header box;
Described header box one end connects the outfan of described solar photovoltaic assembly, and the other end of described header box connects described super The input of level capacitor.
3. energy-accumulating power station as claimed in claim 1, it is characterised in that described two-way DC/DC changer and described lithium titanate electricity Controlled by second controller between pond, be used for realizing charging mutually between described lithium titanate battery and described ultracapacitor.
4. energy-accumulating power station as claimed in claim 1, it is characterised in that pass through between described DC/AC inverter and described electrical network 3rd controller controls, and is used for realizing electrical network and charges to described ultracapacitor.
CN201620377406.6U 2016-04-29 2016-04-29 A kind of energy-accumulating power station Expired - Fee Related CN205725118U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811862A (en) * 2016-04-29 2016-07-27 易电通(北京)储能科技有限公司 Energy storage power station and energy storage method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811862A (en) * 2016-04-29 2016-07-27 易电通(北京)储能科技有限公司 Energy storage power station and energy storage method

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161123

Termination date: 20190429

CF01 Termination of patent right due to non-payment of annual fee