CN106998094A - A kind of high-efficiency solar energy storage device - Google Patents
A kind of high-efficiency solar energy storage device Download PDFInfo
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- CN106998094A CN106998094A CN201710329507.5A CN201710329507A CN106998094A CN 106998094 A CN106998094 A CN 106998094A CN 201710329507 A CN201710329507 A CN 201710329507A CN 106998094 A CN106998094 A CN 106998094A
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- module
- battery management
- energy storage
- voltage
- solar
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of high-efficiency solar energy storage device, including solar powered module, battery management module, lithium battery pack, voltage monitoring module and data transmission module, the solar powered module includes solar cell, super capacitor and the first Voltage stabilizing module, the solar cell, super capacitor and the first Voltage stabilizing module include two kinds of connection modes that can mutually switch, the output end of solar powered module connects the input of battery management module, and the battery management module is connected with lithium battery pack.It is an advantage of the invention that：In the case where illumination is relatively strong, solar powered module start-up mode one, solar cell is charged by super capacitor to lithium battery group, improves energy storage efficiency；In the case where illumination is weaker, solar powered module start-up mode two by the first mu balanced circuit continued power, extends the use time of solar energy storage system, performance is more stable.
Description
Technical field
The present invention relates to photovoltaic energy storage technical field, more particularly to a kind of high-efficiency solar energy storage device.
Background technology
At present, solar cell because its resource is huge, clean without advantage dirty, easy for installation be just widely used in power station,
In terms of monitoring, street lamp, Lawn lamp.In actual applications, the general energy storage device of solar cell is lead-acid accumulator, lithium electricity
Pond, super capacitor etc..It is bulky for lead-acid accumulator, it is unfavorable for installing, service life is short, winter harsh weather
Under can not to load normal power supply.Therefore, lithium battery is because under its identical capacity, volume is smaller, and weight is lighter, but because lithium electricity
Cell system is complicated, cost is high, and its application also receives certain limitation.
In the prior art, using crystal silicon solar batteries as power supply unit, battery is the monitoring system of energy storage device, is used
Short life, bulky, heavier-weight, and the system charging ability under low light condition are not enough, cause solar energy utilization ratio not high.
Main cause is that monocrystaline silicon solar cell does not produce electric current under low irradiation or produces low current, and can not give lead-acid accumulator
Charging so that system effectiveness is reduced to 50%~60%, especially in the more place of haze sky.And lead-acid accumulator is general
Life-span is 2~3 years, and service life is short, the even winter harsh weather of the photovoltaic off-grid system by accumulation power supply of lead-acid accumulator
Under can not normally start, and monocrystalline silicon battery lightweight packages are heavier, and transport is difficult in the place of high mountain etc., and cost of labor is high, peace
Full property is low, and maintenance cost is high, and even great life security hidden danger is easily caused in key areas such as power networks.
In the prior art, announce and disclose one kind for 205212526U Chinese invention patent《Based on thin film solar electricity
The long-acting integrated power-supply system in pond》, " including membrane photovoltaic component, super capacitor module, charging-discharging controller, voltage stabilizing mould
The energy storage device that group and lithium battery pack are constituted, the input of the super capacitor module described in the output end connection of membrane photovoltaic component
End, the output end of super capacitor module connects the input of charging-discharging controller, and the output end connection of charging-discharging controller is described
Voltage stabilizing module；Lithium battery pack is connected with described charging-discharging controller；Membrane photovoltaic component is flexible or rigid film
Solar cell；The rated voltage of membrane photovoltaic component is higher than the maximum voltage of lithium battery pack." propose a kind of light, height
Effect, long-life long-acting integrated power-supply system based on thin-film solar cells, make full use of the weak of membrane photovoltaic component
The low pressure charging property of light generating and super capacitor, has the advantages that efficient dim light generating, overall system efficiency are high.
But in the above-mentioned technical solutions, when the voltage of super capacitor module is higher than lithium battery voltage, triggering intelligence control
Device processed is charged in the way of continuous impulse to lithium battery pack, until super capacitor module voltage is electric close to lithium battery pack
Pressure；When the voltage of super capacitor module is less than or equal to lithium battery pack voltage, lithium battery pack does not charge.So, in light
According to condition it is weaker under conditions of, such as cloudy day, at dusk, sunlight intensity reduction to a certain extent when, super capacitor module will be unable to
Realize and charge to lithium battery pack.So as to cause solar energy storage system solar energy utilization ratio high not enough, energy stores rate is low.
The content of the invention
It is an object of the invention to provide a kind of high-efficiency solar energy storage device, existing solar energy storage can effectively solve the problem that
The problem of system availability is low.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of high-efficiency solar storage
Energy device, including the system module being fixed in housing, the system module include solar powered module, battery management mould
Group, lithium battery pack, voltage monitoring module and data transmission module, the solar powered module include solar cell, surpassed
Level electric capacity and the first Voltage stabilizing module, the solar cell, super capacitor and the first Voltage stabilizing module, which include two kinds, mutually to be switched
Connection mode：
Pattern one, solar cell connection super capacitor, super capacitor connection battery management module；
Pattern two, passes through super capacitor in parallel and the first voltage stabilizing between solar cell and battery management module
Module is connected；
The output end of the solar powered module connects the input of battery management module, the battery management module with
Lithium battery pack is connected, and the lithium battery pack output end is connected with voltage monitoring module, and voltage monitoring module output end connects
It is connected to data transmission module.
It is preferred that, the battery management module includes battery management system, dynamic monitoring module and the second Voltage stabilizing module, institute
State battery management system to be connected with solar powered module, dynamic monitoring module is connected with battery management system to monitor
The voltage of solar powered module is stated, battery management system is also connected with load by the second Voltage stabilizing module.Dynamic monitoring module is used
To monitor the voltage of solar cell；Second Voltage stabilizing module can improve the job stability of load.
It is preferred that, super capacitor is PWM three-stage pulse modes, the PWM to the battery management module charging modes
Three sections of pulse modes include electric current charging, voltage charging and floating charge.Using PWM three-stage pulse charging manners, simplify
Hardware circuit, reduces hardware cost, reduces the impact failure to battery.
It is preferred that, the solar cell includes direct band-gap semicondictor, and described solar cell is flexibility or rigidity
Thin-film solar cells.The dim light performance of direct band-gap semicondictor more preferably, with the monocrystaline silicon solar cell under Same Efficieney
It is longer compared to the sunshine-duration；Flexible thin-film solar cell can mitigate the weight of power-supply system, improve generated energy；Stiffness films
Solar cell, with higher photoelectric transformation efficiency.
It is preferred that, the voltage detection module includes control group, wiring group, collection group, display combined communication group, and structure is tight
Gather, small volume is lightweight, easy for installation, with over-pressed, under-voltage, default-phase protection function.
It is preferred that, the voltage monitoring module and the wired or wireless connection of data transmission module.Voltage monitoring module and number
According to transport module wired connection, signal transmission effect is good；Voltage monitoring module and data transmission module wireless connection, installation side
Just.
It is preferred that, the case top panel is provided with grid column and charged for solar cell illumination, by the grid column
It is provided with cooling bath.Cooling bath is used to reduce casing surface temperature, and grid column can make solar cell fully contact illumination.
It is preferred that, the housing side is provided with interface group, and the interface group includes mode tuning key, power switch, output
Joint, USB interface and antennal interface, interface group are multiple functional, and wired connection and wireless connection can be applicable simultaneously.
It is preferred that, the mode tuning key includes 2 two states of pattern one and pattern, and pattern one and pattern two are mutually cut
Change conveniently, it is simple to operate.
Compared with prior art, it is an advantage of the invention that：Solar powered module provided with two kinds of connection modes, illumination compared with
In the case of strong, when solar array voltage is more than threshold voltage, solar powered module start-up mode one, solar cell
Charged by super capacitor to lithium battery group, super capacitor absorbs Weak current as energy buffer unit, improve energy storage effect
Rate；In the case where illumination is weaker, when solar array voltage is less than or equal to threshold voltage, solar powered module starts
Pattern two, by the first mu balanced circuit continued power, extends the use time of solar energy storage system, performance is more steady
It is fixed；Lithium battery pack output end is connected with voltage monitoring module, and voltage monitoring module output end is connected with data transmission module, electricity
Pressure monitoring modular and data transmission module can detect the real-time voltage value of solar powered module, and data can be achieved and are connect by communication
Port transmission transmits energy-storage system data to specified location together with monitoring data, facilitates staff's Real Time Observation, and work people
Member can more be apparent from the electricity consumption situation of different regions different loads, be conveniently adjusted system design.
Brief description of the drawings
Fig. 1 is module frame chart of the invention；
Fig. 2 is case top structural representation；
Fig. 3 is the interface group structural representation of housing.
Embodiment
Embodiments of the invention are further illustrated with reference to Fig. 1：
A kind of high-efficiency solar energy storage device, including solar powered module 1, the battery management mould being fixed in housing 71
Group 2, lithium battery pack 3, voltage monitoring module 5 and data transmission module 6, the solar powered module include solar cell
11st, the Voltage stabilizing module 13 of super capacitor 12 and first, the solar cell, super capacitor and the first Voltage stabilizing module can including two kinds
The connection mode mutually switched：
Pattern one, solar cell connection super capacitor, super capacitor connection battery management module；
Pattern two, is connected between solar cell and battery management module by super capacitor in parallel and the first Voltage stabilizing module
Connect；
The output end of solar powered module connects the input of battery management module, battery management module and lithium battery group
Part is connected, and lithium battery pack output end is connected with voltage monitoring module, and voltage monitoring module output end is connected with data transfer
Module.Battery management module includes battery management system 22, the Voltage stabilizing module 23 of dynamic monitoring module 24 and second, the cell tube
Reason system is connected with solar powered module, and dynamic monitoring module is connected with battery management system to monitor the solar energy
The voltage of power supply module, battery management system is also connected with load 4 by the second Voltage stabilizing module.Voltage monitoring module and data transfer
The wired or wireless connection of module, data transmission module include wired or wireless, be wirelessly transferred form including bluetooth, WIFI,
The methods such as 4G signals.
Solar cell is flexible or rigid thin-film solar cells, and thin-film solar cells, dim light performance is more preferably, sharp
Electric energy is produced with photoelectric effect；Flexible solar battery light quality, mitigates the weight of power-supply system, improves generated energy, relatively low
Also it can produce that low current, self-cleaning be good, service life is long under irradiation, light weight is soft, is especially applicable for more paying attention to load-bearing
Place.Solar cell includes direct band-gap semicondictor, the dim light performance of direct band-gap semicondictor more preferably, and under Same Efficieney
Monocrystaline silicon solar cell compared to the sunshine-duration it is longer.Super capacitor is PWM tri- to the battery management module charging modes
Segmentation pulse mode, described tri- sections of pulse modes of PWM include electric current charging, voltage charging and floating charge.Using PWM three-stage
Pulse charging manner, simplifies hardware circuit, reduces hardware cost, reduces the impact failure to battery.
As shown in Figure 2 and Figure 3, case top panel is provided with by grid column 711, the grid column and is provided with cooling bath 712.It is cold
But groove is used to reduce casing surface temperature, and grid column can make solar cell fully contact illumination.Housing side is provided with interface
Group, the interface group includes mode tuning key 721, power switch 724, out splice going splice 725, USB interface 722 and antennal interface
723.Mode tuning key includes 2 two states of pattern one and pattern, when mode tuning key is in one position of pattern, solar energy
Battery connects super capacitor, super capacitor connection battery management module；When mode tuning key is in two position of pattern, solar energy
Connected between battery and battery management module by super capacitor in parallel and the first Voltage stabilizing module.
During work, when illumination is stronger, start-up mode one when solar cell is more than threshold voltage is being detected, then solar energy
Battery is connected with super capacitor, and the first mu balanced circuit is not reconnected.The voltage of super capacitor is more than the voltage of lithium battery pack, leads to
Super capacitor is crossed to charge to lithium battery pack.Certain electric charge is arrived in super capacitor accumulation, and battery management system determines that pulse charge is released
Put time and number of times to charge to battery, using peak efficiency as principle.When the voltage of super capacitor is higher than lithium battery pack voltage,
It is higher by the electricity corresponding to the voltage difference part of lithium battery pack to be walked by electric current pull, gives lithium battery pack charging, now surpass
Level capacitance voltage is close to lithium battery pack voltage.When illumination is weaker, solar cell is being detected less than or equal to threshold value electricity
Start-up mode two during pressure, the first mu balanced circuit is in parallel with super capacitor, by electrical power storage in super capacitor, then electric energy is inputted
Described battery management system is powered for lithium battery pack.
Solar powered module is provided with threshold voltage, and when detection voltage is more than threshold voltage, solar powered module starts
Pattern one；When detection voltage is less than or equal to threshold voltage, solar powered module start-up mode two.In the stronger situation of illumination
Under, when solar array voltage is more than threshold voltage, solar powered module start-up mode one, solar cell passes through super
Electric capacity charges to lithium battery group, and super capacitor absorbs Weak current as energy buffer unit, improves energy storage efficiency；In illumination
In the case of weaker, when solar array voltage is less than or equal to threshold voltage, solar powered module start-up mode two is led to
The first mu balanced circuit continued power is crossed, the use time of solar energy storage system is extended, performance is more stable.
The specific embodiment of the present invention is the foregoing is only, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field is in the field of the invention, and the change or modification made all are covered among the scope of the claims of the present invention.
Claims (9)
1. a kind of high-efficiency solar energy storage device, it is characterised in that：Including the system module being fixed in housing (71), the system
Module of uniting includes solar powered module (1), battery management module (2), lithium battery pack (3), voltage monitoring module (5) sum
According to transport module (6), the solar powered module (1) includes solar cell (11), super capacitor (12) and the first voltage stabilizing
Module (13), the solar cell (11), super capacitor (12) and the first Voltage stabilizing module (13), which include two kinds, mutually to be switched
Connection mode：
Pattern one, solar cell (11) connection super capacitor (12), super capacitor (12) connection battery management module (2)；
Pattern two, it is steady by super capacitor (12) in parallel and first between solar cell (11) and battery management module (2)
Die block (13) is connected；
The input of the output end connection battery management module (2) of the solar powered module (1), the battery management module
(2) it is connected with lithium battery pack (3), lithium battery pack (3) output end is connected with voltage monitoring module (5), voltage prison
Survey module (5) output end and be connected with data transmission module (6).
2. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that the battery management module
(2) battery management system (22), dynamic monitoring module (24) and the second Voltage stabilizing module (23), the battery management system are included
(22) it is connected with solar powered module (1), dynamic monitoring module (24) is connected with battery management system (22) to monitor
The voltage of the solar powered module (1), battery management system (22) is also connected with load by the second Voltage stabilizing module (23)
(4)。
3. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that the super capacitor (12) is right
The battery management module charging modes be PWM three-stage pulse modes, described tri- sections of pulse modes of PWM include electric current charging,
Voltage charges and floating charge.
4. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that the solar cell (11)
Including direct band-gap semicondictor, described solar cell (11) is flexible or rigid thin-film solar cells.
5. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that the voltage detection module
(5) control group, wiring group, collection group, display combined communication group are included.
6. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that the voltage monitoring module
(5) with the wired or wireless connection of data transmission module (6).
7. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that housing (71) top surface
Plate is provided with grid column (711) and charged for solar cell (11) illumination, and cooling bath (712) is provided with by the grid column (711).
8. a kind of high-efficiency solar energy storage device according to claim 1, it is characterised in that open housing (71) side
There is interface group, the interface group includes mode tuning key (721), power switch (724), out splice going splice (725), USB interface
And antennal interface (723) (722).
9. a kind of high-efficiency solar energy storage device according to claim 8, it is characterised in that the mode tuning key
(721) 2 two states of pattern one and pattern are included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329507.5A CN106998094A (en) | 2017-05-11 | 2017-05-11 | A kind of high-efficiency solar energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329507.5A CN106998094A (en) | 2017-05-11 | 2017-05-11 | A kind of high-efficiency solar energy storage device |
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| Publication Number | Publication Date |
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| CN106998094A true CN106998094A (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710329507.5A Pending CN106998094A (en) | 2017-05-11 | 2017-05-11 | A kind of high-efficiency solar energy storage device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565907A (en) * | 2018-02-06 | 2018-09-21 | 青岛天盈华智科技有限公司 | A kind of charge/discharge control method, device, equipment and system |
| CN111181195A (en) * | 2020-01-13 | 2020-05-19 | 合肥阳光新能源科技有限公司 | Light storage micro-grid system and self-starting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141998A1 (en) * | 2006-12-18 | 2008-06-19 | Ming-Hsin Sun | Maximum power point tracking system for the solar-supercapacitor power device and method using same |
| CN203689699U (en) * | 2013-12-15 | 2014-07-02 | 重庆辉腾光电有限公司 | Network centralized-control system of solar energy traffic signal lamp |
| CN105391157A (en) * | 2015-12-21 | 2016-03-09 | 浙江尚越新能源开发有限公司 | Long-acting integrated power supply system based on thin-film solar battery and charging method |
| CN205105141U (en) * | 2015-09-22 | 2016-03-23 | 江西飞尚科技有限公司 | Energy -conserving supply circuit of solar energy cloudy day |
| CN206685952U (en) * | 2017-05-11 | 2017-11-28 | 国家电网公司 | A kind of high-efficiency solar energy storage device |
-
2017
- 2017-05-11 CN CN201710329507.5A patent/CN106998094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141998A1 (en) * | 2006-12-18 | 2008-06-19 | Ming-Hsin Sun | Maximum power point tracking system for the solar-supercapacitor power device and method using same |
| CN203689699U (en) * | 2013-12-15 | 2014-07-02 | 重庆辉腾光电有限公司 | Network centralized-control system of solar energy traffic signal lamp |
| CN205105141U (en) * | 2015-09-22 | 2016-03-23 | 江西飞尚科技有限公司 | Energy -conserving supply circuit of solar energy cloudy day |
| CN105391157A (en) * | 2015-12-21 | 2016-03-09 | 浙江尚越新能源开发有限公司 | Long-acting integrated power supply system based on thin-film solar battery and charging method |
| CN206685952U (en) * | 2017-05-11 | 2017-11-28 | 国家电网公司 | A kind of high-efficiency solar energy storage device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565907A (en) * | 2018-02-06 | 2018-09-21 | 青岛天盈华智科技有限公司 | A kind of charge/discharge control method, device, equipment and system |
| CN111181195A (en) * | 2020-01-13 | 2020-05-19 | 合肥阳光新能源科技有限公司 | Light storage micro-grid system and self-starting method thereof |
| CN111181195B (en) * | 2020-01-13 | 2022-04-08 | 阳光新能源开发股份有限公司 | Light storage micro-grid system and self-starting method thereof |
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