CN204516867U - A kind of intelligent energy accumulation management system being applied to photovoltaic art - Google Patents
A kind of intelligent energy accumulation management system being applied to photovoltaic art Download PDFInfo
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- CN204516867U CN204516867U CN201520241888.8U CN201520241888U CN204516867U CN 204516867 U CN204516867 U CN 204516867U CN 201520241888 U CN201520241888 U CN 201520241888U CN 204516867 U CN204516867 U CN 204516867U
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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
- Y02E10/50—Photovoltaic [PV] energy
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
Abstract
The utility model provides a kind of intelligent energy accumulation management system being applied to photovoltaic art, its architectural feature is: be made up of the identical series battery E1-En of DC convergent current bus bar M, n group nominal voltage, regulator, intelligent controller C, checkout gear V0-Vn and intelligent charge K switch 1-Kn, its intelligent charge switch is made up of counnter attack diode D and intelligent switch S.Whether each branch road drops into online charging is controlled by K according to the energy information of M by C, both can avoid the energy surplus of M cause online batteries charging overcurrent or float charge voltage too high, also can avoid the energy shortage of M and online batteries is on the high side and cause charging invalid.In the photovoltaic generating system that DC convergent current bus bar energy hunting is larger, on the basis avoiding overcharge of a battery and energy dissipation, the harmony of charging can be ensured, improve the useful life of batteries.
Description
Technical field
This patent relates to technical field of new energies, particularly relates to the accumulation of energy control and management technology of energy storage battery in field of photovoltaic power generation.
Background technology
Energy storage battery is applied widely in various alterating and direct current origin system, especially in photovoltaic generating system, energy-storage battery not only can store excess energy and be used to provide instantaneous stand-by and power, power fluctuation can also be stabilized and improve the quality of power supply, but energy-storage battery discharge and recharge number of times is frequent in photovoltaic generating system, and energy source end has very large fluctuation, randomness and finiteness, be difficult to the charge rule requirement continuing to meet energy-storage battery standard, the seasonal variety of illumination and the continuous overcast and rainy deep discharge easily causing energy-storage battery, and be also difficult to after letting slip electricity again be full of in a short time, thus make battery be in low state-of-charge for a long time.Visible, photovoltaic generating system seldom can efficiently rapidly for energy-storage battery be full of electricity, and battery is often in feed condition for a long time, therefore, the incorrect management of energy-storage battery can shorten the useful life of battery greatly, and causes energy-storage battery to become the most flimsy parts in photovoltaic generating system.
Researcher is had to propose the series-parallel charge control method of a kind of storage battery at present, by detecting solar panel output voltage values, the quantity of adjustment storage battery series connection is to mate charging voltage value, there is very large technological deficiency and hidden danger in this method, the analysis of causes as follows in theory with in practical application: three major parameter terminal voltage U of storage battery
0, there is the relation interacting and restrict in battery self electromotive force E and its internal resistance r, the accumulator internal resistance of different terminal voltage is different, during discharge and recharge, the change of electromotive force is also different, in above-mentioned charging method, add at random when batteries serial connection charge or reduce battery, the battery terminal voltage that certainly will cannot ensure battery and the original battery pack newly added is identical, and now the internal resistance value of cell is not identical, charging transient electromotive force also can be obviously inconsistent, the harmony of batteries charging cannot be ensured at all, and this repeating query long is gone down, accelerate the differentiation degree of internal resistance of cell value on the contrary, result can cause parameter difference mutation between battery cells all in system large, be equivalent to used in combination for new used batteries, more be degrading the serviceability of battery and the useful life of serious curtailment battery.
Summary of the invention
In order to solve the reasonable Charge Management of storage battery, the technical problem of high efficiency energy storage, the utility model proposes a kind of intelligent energy accumulation management system being applied to photovoltaic art, can not only in the energy resource system that energy hunting is larger, the maximized effective charging utilizing the energy to ensure storage battery, and ensure the harmony of charge in batteries, the isoparametric coupling of better maintenance free cell internal resistance and consistency, improve the serviceability of storage battery, extend the useful life of storage battery.
A kind of intelligent energy accumulation management system being applied to photovoltaic art described in this patent, its basic composition structure is: by the identical series battery of DC convergent current bus bar M, n group nominal voltage (E1-En), intelligent controller C, checkout gear V0-Vn, regulator, change over switch K
0and intelligent charge K switch 1-Kn is formed, its intelligent charge switch is made up of counnter attack diode D and intelligent switch S, and regulator is by change over switch K
0and being connected in the input side of bus rod M positive pole, M is connected with series-connected batteries by intelligent charge K switch 1-Kn, and whether each batteries drops into online charging is determined by the energy information of DC convergent current bus bar, is realized the control of K1-Kn by C.
The effect implementing this patent useful it is possible to charging accumulation of energy that is scientific, intelligent management energy-storage battery, ensures each charging paths equalizing charge, and maximizedly can utilize energy, improve charge efficiency, effectively maintain the serviceability of energy-storage battery, improve the useful life of battery.
Accompanying drawing explanation
A kind of intelligent energy accumulation management system example structure figure being applied to photovoltaic art of Fig. 1 this patent.
Embodiment
As shown in Figure 1, energy-storage battery group E1-En is the identical series battery of n group nominal voltage, the positive pole that its positive pole connects intelligent charge K switch 1-Kn respectively goes out end, the negative pole that negative pole meets K1-Kn goes out end, the positive pole that DC convergent current bus bar M positive pole connects intelligent charge K switch 1-Kn enters end, the negative pole that negative pole connects intelligent charge K switch 1-Kn enters end, and intelligent charge switch forms by by counnter attack diode D and intelligent switch S, DC bus input side positive pole series connection access change over switch K
0, K
0contact 2 end connect regulator input, regulator output and contact 1 concurrent, be incorporated to the positive pole of DC bus, intelligent controller C holding wire meets detecting instrument V0, V1, V2......Vn, and its control line meets intelligent charge K switch 1, K2...Kn and change over switch K
0.
DC bus energy source is in solar energy system, intelligent controller C Real-Time Monitoring DC bus M energy information, according to the battery pack circuitry number of the online charging of change regulation and control of energy information, when energy is sufficient, increase the branch road quantity of online charging, maximum absorption and utilize energy, and during energy dropoff, reduce the branch road quantity of online charging, avoid causing invalid charging because of energy shortage, complete the input of online charging paths by controlling intelligent charge K switch 1-Kn and exit.When the rechargeable energy of the even minimum branch road of energy wretched insufficiency all cannot meet, change over switch is allocated to contact 2, starts regulator, invalid energy is converted to qualified effective energy and charge, improve capacity usage ratio.
In the intelligent energy accumulation management system of this patent, that nominal voltage is identical and changeless series battery is as a whole as a charging paths using one group, drop into that to charge or exit charging online be also all carry out in units of charging paths, so all batteries any moment in same charging paths is all be in identical state completely, ensure that the harmony of all battery chargings in same branch road, again because be independently carry out charging to be mutually independent of each other between branch road and branch road, therefore there is not cell parameter differences sex chromosome mosaicism yet.
Described intelligent controller C, can be various forms of computer, industrial computer, single-chip microcomputer, intelligent instrument or all kinds of Programmable Logic Controller, its holding wire meets detecting instrument V0, V1, V2......Vn, and its control line meets intelligent charge K switch 1, K2...Kn and change over switch K
0.
Described intelligent charge K switch 1, K2...Kn, be made up of counnter attack diode D and intelligent switch S, intelligent switch S can be switch with mechanical contact also can be the contactless class switch (as MOSFET, IGBT, SCR, GTR, GTO etc.) of power electronics, the order of connection of D and S need not be fixed, if ensure D just very charging input end and negative pole is output.
Described change over switch K
0, can be mechanical switch switch, also can be controllable type electronic power switch (as MOSFET, IGBT, SCR etc.).
Described regulator can be all kinds of power or voltage changer.
Described energy-storage battery can be electrochemistry class energy-storage battery (as lead acid accumulator, ferric phosphate lithium cell, lithium battery, Ni-MH battery, sodium-sulphur battery etc.).
A kind of intelligent energy accumulation management system being applied to photovoltaic art that the utility model proposes can be applied in wind power generation field and fluctuation energy electricity generation system, not only can reduce the capacity configuration of energy end, and completely can be scientific and reasonable intelligent management is carried out to storage battery, the charge efficiency of raising system, extends the useful life of storage battery.
The utility model is described by example, and those skilled in the art know, when not departing from the spirit and scope of this patent, can change or equivalence replacement to characteristic sum example described in the utility model.Therefore, the utility model is by the restriction of specific embodiment disclosed herein, as long as the embodiment of carrying out changing or equivalence is replaced with reference to characteristic sum example described in the utility model all belongs to protection range of the present utility model.
Claims (6)
1. one kind is applied to the intelligent energy accumulation management system of photovoltaic art, its architectural feature is: by DC convergent current bus bar M, the identical series battery of n group nominal voltage (E1-En), intelligent controller C, checkout gear V0-Vn, regulator, change over switch K0 and intelligent charge K switch 1-Kn is formed, its intelligent charge switch is made up of counnter attack diode D and intelligent switch S, M is connected with series-connected batteries by intelligent charge switch, whether each batteries drops into online charging is determined by the energy information of DC convergent current bus bar, by C, the control of K1-Kn is realized.
2. a kind of intelligent energy accumulation management system being applied to photovoltaic art according to claim 1, it is characterized in that: nominal voltage identical n group series-connected batteries (E1, E2 ... En), the positive pole that the positive pole of each series connection group meets corresponding K1 (Kn) goes out end, and the negative pole that negative pole meets corresponding K1 (Kn) goes out end.
3. a kind of intelligent energy accumulation management system being applied to photovoltaic art according to claim 1, it is characterized in that: bus rod M, its DC energy source comes from solar power system, and its positive pole M+ is connected intelligent charge K switch 1, K2 respectively with negative pole M-... Kn positive pole and negative pole enter end.
4. a kind of intelligent energy accumulation management system being applied to photovoltaic art according to claim 1, it is characterized in that: intelligent charge K switch 1, K2 ... Kn, it forms by counnter attack diode D and intelligent switch S, intelligent switch S can be switch with mechanical contact also can be the contactless class switch (as MOSFET, IGBT, SCR, GTR, GTO) of power electronics, the order of connection of D and S need not be fixed, if ensure D just very charging input end and negative pole is output.
5. a kind of intelligent energy accumulation management system being applied to photovoltaic art according to claim 1, it is characterized in that: intelligent controller C, can be various forms of computer, industrial computer, single-chip microcomputer, intelligent instrument or all kinds of Programmable Logic Controller, its holding wire meets detecting instrument V0, V1, V2 ... Vn, its control line meets intelligent charge K switch 1, K2 ... Kn and change over switch K0.
6. a kind of intelligent energy accumulation management system being applied to photovoltaic art according to claim 1, it is characterized in that: checkout gear V0, V1, V2 ... Vn, can be intelligent instrument or the module such as power detection or conversion, intelligent voltage detection or conversion, its holding wire connects intelligent controller C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241888.8U CN204516867U (en) | 2015-04-16 | 2015-04-16 | A kind of intelligent energy accumulation management system being applied to photovoltaic art |
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| CN201520241888.8U CN204516867U (en) | 2015-04-16 | 2015-04-16 | A kind of intelligent energy accumulation management system being applied to photovoltaic art |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785949A (en) * | 2016-08-25 | 2018-03-09 | 矢崎总业株式会社 | Quick charge device |
| CN116742106A (en) * | 2022-10-11 | 2023-09-12 | 荣耀终端有限公司 | Battery module, charging control method and electronic equipment |
-
2015
- 2015-04-16 CN CN201520241888.8U patent/CN204516867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785949A (en) * | 2016-08-25 | 2018-03-09 | 矢崎总业株式会社 | Quick charge device |
| CN116742106A (en) * | 2022-10-11 | 2023-09-12 | 荣耀终端有限公司 | Battery module, charging control method and electronic equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170125 Address after: Xinzhaizi Xin Ping Street in Ganjingzi District of Dalian City, Liaoning Province, No. 58 116039 Patentee after: guobiao power supply group Co., Ltd Address before: Xinzhaizi Xin Ping Street in Ganjingzi District of Dalian City, Liaoning Province, No. 58 116039 Patentee before: Liu Na |