CN205039735U - Utilize and net photovoltaic power generation system leaving of two kinds of mixed energy storage of battery - Google Patents
Utilize and net photovoltaic power generation system leaving of two kinds of mixed energy storage of battery Download PDFInfo
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- CN205039735U CN205039735U CN201520785093.3U CN201520785093U CN205039735U CN 205039735 U CN205039735 U CN 205039735U CN 201520785093 U CN201520785093 U CN 201520785093U CN 205039735 U CN205039735 U CN 205039735U
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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 an utilize and net photovoltaic power generation system leaving of two kinds of mixed energy storage of battery relates to a photovoltaic from net electricity generation technical field. The utility model discloses an including solar module, double - circuit energy storage discharge controller of solar, main energy storage device, reserve energy storage device and load, double - circuit energy storage discharge controller of solar is connected with solar module, main energy storage device, reserve energy storage device and load phase respectively, and double - circuit energy storage discharge controller of solar includes charge and discharge unit, discharge controller of solar 0, discharge controller of solar 1, and charge and discharge unit and discharge controller of solar 1 all are connected with discharge controller of solar 0. The utility model discloses break traditional single energy storage mode, adopt two kinds of common energy storage of different kinds of batteries, the advantage of two kinds of batteries of full play, and reduce the influence that its shortcoming was brought as far as possible to realize low -cost long -life energy storage form, compromise the factor in cost and life -span simultaneously, improve economic nature and stability from net power generation system.
Description
Technical field
The utility model relates to a kind of photovoltaic off-grid technical field of power generation, particularly relate to a kind of utilize two kinds of battery hybrid energy-storings from net photovoltaic generating system.
Background technology
Existing is all use single stored energy form, such as lead acid accumulator (comprising common plumbic acid maintenance free cell, plumbic acid colloid battery, plumbic acid winding battery, pure excide battery etc.), lithium ion battery (comprising ternary lithium battery, ferric phosphate lithium cell, lithium manganate battery etc.), nickel-cadmium cell, alum sulphur battery, graphite cell etc. from net type photovoltaic generating system.But these stored energy form or life-span not high (such as common plumbic acid maintenance-free battery, nickel-cadmium cell), (lead-acid battery that such as lithium ion battery, alum sulphur battery and colloid battery etc. are special) with high costs, these all cause the economy of off-grid system not enough, invest often and also do not regain, just be faced with again the new round investment changing battery, or even investment is greater than income forever, this is also the large factor of restriction from the development of net type photovoltaic generating system.
Utility model content
For the weak point existed in the problems referred to above, the utility model provide a kind of utilize two kinds of battery hybrid energy-storings from net photovoltaic generating system, the single energy storage pattern making it break traditions, adopt the common energy storage of battery that two kinds dissimilar, give full play to two kinds of batteries or cost is low or the life-span is long advantage, and reduce the impact that its shortcoming brings as far as possible, thus realize the stored energy form of low-cost long-life, take into account the factor in cost and life-span simultaneously, improve the economy from net electricity generation system and stability.
In order to solve the problem, the utility model provide a kind of utilize two kinds of battery hybrid energy-storings from net photovoltaic generating system, wherein, comprise solar module, two-way energy-storage solar charging-discharging controller, main energy-storage travelling wave tube, energy-storage travelling wave tube for subsequent use and load, described two-way energy-storage solar charging-discharging controller respectively with described solar module, described main energy-storage travelling wave tube, described energy-storage travelling wave tube for subsequent use is connected with described load, described two-way energy-storage solar charging-discharging controller comprises charge/discharge unit, CPU, display unit, described charge/discharge unit is all connected with described CPU with described display unit.
Preferably, described load comprises DC load and AC load, and described DC load and described AC load are all connected with described two-way energy-storage solar charging-discharging controller.
Preferably, also comprise from net inverter, to be describedly arranged between described two-way energy-storage solar charging-discharging controller and described AC load from net inverter.
Preferably, be also provided with double power supply converting switch in described two-way energy-storage solar charging-discharging controller, described double power supply converting switch is connected with described CPU.
Preferably, described two-way energy-storage solar charging-discharging controller also has the power input for external power source input.
Compared with prior art, the utility model has the following advantages:
The single energy storage pattern that the present invention breaks traditions, adopt the common energy storage of battery that two kinds dissimilar, give full play to two kinds of batteries or cost is low or the life-span is long advantage, and reduce the impact that its shortcoming brings as far as possible, thus realize the stored energy form of low-cost long-life, take into account the factor in cost and life-span simultaneously, improve the economy from net electricity generation system and stability.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram of the present utility model.
Main element symbol description:
1-solar module 2-two-way energy-storage solar charging-discharging controller
3-load 4-main energy-storage travelling wave tube 5-energy-storage travelling wave tube for subsequent use
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing and example, the utility model is described in further detail, but example is not as to restriction of the present utility model.
As shown in Figure 1, embodiment of the present utility model comprises solar module 1, two-way energy-storage solar charging-discharging controller 2, main energy-storage travelling wave tube 4, energy-storage travelling wave tube 5 for subsequent use and load 3, two-way energy-storage solar charging-discharging controller 2 respectively with solar module 1, main energy-storage travelling wave tube 4, energy-storage travelling wave tube 5 for subsequent use is connected with load 3, two-way energy-storage solar charging-discharging controller 2 comprises charge/discharge unit, CPU, display unit, charge/discharge unit is all connected with CPU with display unit, its function is under the prerequisite ensureing normally to work from net photovoltaic system, by the optimum organization to two kinds of energy-storage travelling wave tubes, rational allocation, realization reduces costs, extend lifetime of system, improve the effect of the stability of a system.Simultaneously owing to optimizing charging order, the waste in charging process can be reduced, improve system effectiveness.
Load 3 comprises DC load and AC load, and DC load and AC load are all connected with two-way energy-storage solar charging-discharging controller 2.Also comprise from net inverter, be arranged between two-way energy-storage solar charging-discharging controller and AC load from net inverter.Also be provided with double power supply converting switch in two-way energy-storage solar charging-discharging controller 2, double power supply converting switch is connected with CPU.Two-way energy-storage solar charging-discharging controller 2 also has the power input for external power source input.
When system is charged, solar module 1 utilizes photovoltaic effect to be electric energy by transform light energy, first these electric energy are that main energy-storage travelling wave tube 4 charges by two-way energy-storage solar charging-discharging controller 2, when main energy-storage travelling wave tube 4 is about to be full of, when needing to limit its charging current, be opened for the loop of energy-storage travelling wave tube 5 for subsequent use charging, the unnecessary electric energy changed by solar module 1 is charged to energy-storage travelling wave tube 5 for subsequent use, enters floating charge state until be all full of by two kinds of energy-storage travelling wave tubes or close its charged state; When system discharge, first open by two-way energy-storage solar charging-discharging controller 2 loop that main energy-storage travelling wave tube 4 discharges to load 3, monitor its discharge voltage electric current simultaneously, by battery electric quantity management system, discharge process is controlled, when main energy-storage travelling wave tube 4 is discharged to the state of setting, two-way energy-storage solar charging-discharging controller 2 opens the loop that energy-storage travelling wave tube 5 for subsequent use discharges to load 3, closes or limits main energy-storage travelling wave tube 4 and discharge to load 3, until discharge off.
The single energy storage pattern broken traditions in the present embodiment, adopt the common energy storage of battery that two kinds dissimilar, give full play to two kinds of batteries or cost is low or the life-span is long advantage, and reduce the impact that its shortcoming brings as far as possible, thus realize the stored energy form of low-cost long-life.Such as the energy storage device used in a set of Solar Street Lighting System, required stored energy capacitance is actually by all needing to carry out the part of opto-electronic conversion every day and part for subsequent use forms jointly in order to ensure the impact that the continuous bad weather such as overcast and rainy causes, we can adopt a kind of allowable depth discharge and recharge for the part circulated every day and life-span long but that cost is higher battery such as colloid storage battery or lithium iron phosphate storage battery realizes, and for part for subsequent use, because it is infrequently used to, we then can just use common lead acid accumulator or other low cost battery to realize.The factor in cost and life-span can be taken into account like this, improve the economy from net electricity generation system and stability.
System completes by the battery that the life-span is longer the daily discharge and recharge circulated every day one as main energy-storage travelling wave tube, and the shorter battery of cycle life is generally just operated in floating charge state as energy-storage travelling wave tube for subsequent use, just when overcast and rainy wait solar recharging deficiency just the electric energy that can call inside lead acid accumulator greatly reduce depth of round and the cycle-index of storage battery, therefore can service life of significantly elevator system energy-storage units.
In efficiency: no matter be which kind of battery, its charging curve is all that the higher electric current of voltage is less, this is that is at the charging initial stage, the charge acceptance of battery is very strong, almost can reach 100%, and time the phase, battery was soon full of after charging, the charge acceptance of battery will decline greatly, if the simple configuration calculating solar panel according to the relation of solar panel Power x peak value hours of daylight, can cause battery in actual use to be always not fully filled.After used in combination for two kinds of batteries, we can by the charging process unified management of two kinds of batteries, by the different qualities of system according to two kinds of batteries, rechargeable energy is distributed, initial stage is only the charging of main energy-storage travelling wave tube, when main battery voltage rising is soon full of, it is reserve battery charging simultaneously, until two kinds of batteries are all filled, do like this can optimize storage battery to greatest extent charging process to ensure battery life, also make use of solar energy to greatest extent simultaneously, cut the waste, improve the overall efficiency of system.If in conjunction with the control to solar cell working point, estimate system synthesis efficiency to be promoted to about 80% by original about 60%.So improve system effectiveness, reduce the configuration of solar panel, economical and fail safe all will increase.
In maintenance: because battery life extends greatly, therefore the maintenance period of system is also extended considerably, and the maintenance cost from net photovoltaic system will have the reduction of highly significant.
At economic analysis: from long-term consideration, due to the significantly reduction of maintenance cost, use two kinds of battery hybrid energy-storings from net photovoltaic generating system economic performance be greatly be better than traditional from net photovoltaic system.From the life-time dilatation of net type photovoltaic system, make storage battery change bring difficult in maintenance to be readily solved, make to become real practical product based on the types of applications from net photovoltaic generating system, the cognition that people are exactly ostentatious project, face-saving project to solar street light engineering can be changed, also make the target of large scale application solar energy no longer become empty verbiage, its social benefit is very great.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. one kind utilize two kinds of battery hybrid energy-storings from net photovoltaic generating system, it is characterized in that, comprise solar module, two-way energy-storage solar charging-discharging controller, main energy-storage travelling wave tube, energy-storage travelling wave tube for subsequent use and load, described two-way energy-storage solar charging-discharging controller respectively with described solar module, described main energy-storage travelling wave tube, described energy-storage travelling wave tube for subsequent use is connected with described load, described two-way energy-storage solar charging-discharging controller comprises charge/discharge unit, CPU, display unit, described charge/discharge unit is all connected with described CPU with described display unit.
2. utilize as claimed in claim 1 two kinds of battery hybrid energy-storings from net photovoltaic generating system, it is characterized in that, described load comprises DC load and AC load, and described DC load and described AC load are all connected with described two-way energy-storage solar charging-discharging controller.
3. utilize as claimed in claim 2 two kinds of battery hybrid energy-storings from net photovoltaic generating system, it is characterized in that, also comprise from net inverter, to be describedly arranged between described two-way energy-storage solar charging-discharging controller and described AC load from net inverter.
4. utilize as claimed in claim 3 two kinds of battery hybrid energy-storings from net photovoltaic generating system, it is characterized in that, also be provided with double power supply converting switch in described two-way energy-storage solar charging-discharging controller, described double power supply converting switch is connected with described CPU.
5. utilize as claimed in claim 4 two kinds of battery hybrid energy-storings from net photovoltaic generating system, it is characterized in that, described two-way energy-storage solar charging-discharging controller also have for external power source input power input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785093.3U CN205039735U (en) | 2015-10-11 | 2015-10-11 | Utilize and net photovoltaic power generation system leaving of two kinds of mixed energy storage of battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520785093.3U CN205039735U (en) | 2015-10-11 | 2015-10-11 | Utilize and net photovoltaic power generation system leaving of two kinds of mixed energy storage of battery |
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| CN205039735U true CN205039735U (en) | 2016-02-17 |
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| CN201520785093.3U Expired - Fee Related CN205039735U (en) | 2015-10-11 | 2015-10-11 | Utilize and net photovoltaic power generation system leaving of two kinds of mixed energy storage of battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572118A (en) * | 2019-07-30 | 2019-12-13 | 中国科学院光电研究院 | circulating energy power supply system suitable for high-altitude balloon |
| CN111200889A (en) * | 2020-03-18 | 2020-05-26 | 周孝钧 | Storage battery charging and discharging control dual system of solar lamp |
| CN112186873A (en) * | 2020-10-12 | 2021-01-05 | 东山神盾新能源科技有限公司 | Distributed solar energy storage system |
-
2015
- 2015-10-11 CN CN201520785093.3U patent/CN205039735U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572118A (en) * | 2019-07-30 | 2019-12-13 | 中国科学院光电研究院 | circulating energy power supply system suitable for high-altitude balloon |
| CN110572118B (en) * | 2019-07-30 | 2021-10-29 | 中国科学院光电研究院 | Circulating energy power supply system suitable for high-altitude balloon |
| CN111200889A (en) * | 2020-03-18 | 2020-05-26 | 周孝钧 | Storage battery charging and discharging control dual system of solar lamp |
| CN112186873A (en) * | 2020-10-12 | 2021-01-05 | 东山神盾新能源科技有限公司 | Distributed solar energy storage system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20181011 |