CN103208836A - Outdoor solar lithium battery energy storage device - Google Patents
Outdoor solar lithium battery energy storage device Download PDFInfo
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- CN103208836A CN103208836A CN2013100925667A CN201310092566A CN103208836A CN 103208836 A CN103208836 A CN 103208836A CN 2013100925667 A CN2013100925667 A CN 2013100925667A CN 201310092566 A CN201310092566 A CN 201310092566A CN 103208836 A CN103208836 A CN 103208836A
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- lithium ion
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Abstract
The invention relates to an outdoor solar lithium battery energy storage device. The energy storage device comprises a solar cell module and is characterized in that an energy output end of the solar cell module is connected with a control device, an energy reserve port of the control device is connected with a lithium ion battery pack, and an output control switch and an output interface which are independent to each other are arranged on the control device. Thus, electric power stored in lithium ion batteries is converted into the utilization voltage for users through a charging and discharging direct current (DC)-DC converting assembly in the control device. The control device has lithium ion battery management system (BMS) functions which are functions of over charging and over discharging protection, charging and discharging balancing, electric quantity indication, temperature protection and the like. Lithium ion batteries which are high in energy density and long in cycle life are used, so that the size and the weight of the whole system are effectively reduced, and the device is flexible and convenient to use.
Description
Technical field
The present invention relates to a kind of energy storage device, relate in particular to a kind of solar energy lithium battery family energy storage device.
Background technology
Outdoor solar photovoltaic generation system power is little, versatile and flexible, easy for installation, is a kind of effective means that solves no electric powerup issue from far-off regions.Because the application of solar energy is subjected to the influence of factors such as weather, intensity of illumination, directly cause the electric energy of opto-electronic conversion output extremely unstable, therefore general solar energy storage system earlier with the electrical power storage of opto-electronic conversion in storage battery, by storage battery power consumption equipment is powered again.Existing domestic solar mostly adopts lead-acid battery as energy-storage units with system, lead acid accumulator is compared with lithium ion battery and is existed that cycle life is short, energy density is lower, the problem of replacing and troublesome maintenance, and lead still is a kind of heavy metal that very easily causes environmental pollution.Lead-acid battery is faced with the trend that is progressively substituted by lithium ion battery.
At present standard lead-acid battery system all is that battery module by 12V is in series, its operating voltage be 12V N doubly, N is the quantity of the module of series connection lead-acid battery.Substitute need the connect lithium-ion battery monomer of some of lead-acid battery with lithium ion battery and form the lithium ion battery group, make it reach the requirement of operating voltage.Because the lithium ion battery charge-discharge characteristic has determined that the charging/discharging voltage of each battery need be controlled in certain scope of application, if charging voltage is too high, battery has the danger of blast.When the battery discharge brownout, can influence the cycle life of battery.
Summary of the invention
The objective of the invention is to overcome the above problem that prior art exists, a kind of solar energy lithium battery family energy storage device is provided.
For realizing purpose of the present invention, a kind of solar energy lithium battery family energy storage device, include solar module, wherein: be connected with control device on the energy source output terminal head of described solar module, be connected with the lithium ion battery group on the energy reserves port of described control device, described control device is provided with separate output control switch, output interface.
Further; above-mentioned a kind of solar energy lithium battery family energy storage device; wherein; be provided with in the described control device and discharge and recharge the DC-DC transition components; the output of the described DC-DC of discharging and recharging transition components can link to each other by the source output terminal head with solar module; the output of the described DC-DC of discharging and recharging transition components is protected assembly by BMS, connects output control switch and output interface.
Further, above-mentioned a kind of solar energy lithium battery family energy storage device, wherein, described control device is provided with display module.
Further, above-mentioned a kind of solar energy lithium battery family energy storage device, wherein, it is that the monomer lithium ion battery is composed in series that described ion battery group is adopted, or is composed in parallel by the monomer lithium ion battery, or is made up of the connection in series-parallel of monomer lithium ion battery.
Further, above-mentioned a kind of solar energy lithium battery family energy storage device wherein, is provided with auxiliary modular converter between the described output interface.
Again further, above-mentioned a kind of solar energy lithium battery family energy storage device, wherein, described output interface includes 12V/5A lead-out terminal and 5V/1A lead-out terminal.
Adopt technical solution of the present invention, by discharging and recharging the DC-DC transition components in the control device, convert the lithium ion battery electric energy stored to utilization voltage, use for the user.Control device also comprises lithium ion battery BMS function, i.e. functions such as super-charge super-discharge protection, charge and discharge balancing, electric weight indication, temperature protection.Owing to the lithium ion battery that has adopted the energy density height, had extended cycle life, effectively reduced the volume and weight of whole system.It is flexible more and convenient that it is used.
Purpose of the present invention, advantage and characteristics will illustrate by the non-limitative illustration of following preferential embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is the organigram that energy storage device is used at this solar energy lithium battery family.
The implication of each Reference numeral is as follows among the figure:
1 solar module, 2 control device
3 lithium ion battery groups, 4 output control switch
5 discharge and recharge DC-DC transition components 6 BMS protection assembly
7 display modules, 8 auxiliary modular converters
9 12V/5A lead-out terminals, 10 5V/1A lead-out terminals
Embodiment
A kind of solar energy lithium battery family energy storage device as shown in Figure 1 includes solar module 1, and its unusual part is: be connected with control device 2 on the energy source output terminal head of solar module 1 of the present invention.Specifically, be connected with lithium ion battery group 3 at the energy reserves port of control device 2, and control device 2 is provided with separate output control switch 4, output interface.Like this, output voltage is direct voltage, drives DC load, can realize direct current output DC-DC translation function.
In conjunction with the present invention's one preferred implementation, be provided with in the control device 2 of the present invention and discharge and recharge DC-DC transition components 5, discharge and recharge the output of DC-DC transition components 5 and linking to each other by the source output terminal head of solar module 1.And from the safety that reality is used, the output that discharges and recharges DC-DC transition components 5 of the present invention connects output control switch 4 and output interface by BMS protection assembly 6.Thus, realize best control.
Further, in time know present use state for the ease of the user, control device 2 is provided with display module 7.Like this, connect each relevant assembly by display module 7, realize that electric weight shows and the demonstration of operating state.
Again further, consider that energy storage need be different with the field of follow-up practical application, it is that the monomer lithium ion battery is composed in series that the ion battery group is adopted.Simultaneously, also can adopt the monomer lithium ion battery to compose in parallel.Certainly, consider some special dimensions, can also be formed by the connection in series-parallel of monomer lithium ion battery.
Certainly, be used in conjunction stability in use in the electric device process outside in order to improve each output interface, be provided with auxiliary modular converter 8 between the output interface.Simultaneously, consider electricity consumption device needs commonly used, output interface includes 12V/5A lead-out terminal 9 and 5V/1A lead-out terminal 10.
From implementation process of the present invention, solar module 1 adopts photovoltaic silicon plate, and it is positive electrode that lithium ion battery group 3 adopts Li (NiCoMn) O2, and the monomer capacity is the cylinder 18650 type lithium ion batteries series connection of 2000mAh and composes in parallel.Photovoltaic silicon plate will shine superincumbent conversion of solar energy and become electric energy, the photovoltaic input of the voltage access control apparatus 2 of output, control device 2 is detected the input voltage of photovoltaic silicon plate earlier, the output voltage of photovoltaic panel and sunshine environmental correclation, has unsteadiness, when in the photovoltaic input voltage setting voltage scope, 2 pairs of photovoltaic input voltages of control device carry out the conversion of DC-DC direct current, the electric energy of photovoltaic input is carried out permanent power transfer, the photovoltaic input voltage is converted to the charging voltage of lithium ion battery group 3, and lithium ion battery group 3 is carried out the constant voltage charging.
In charging process, the voltage of each string of control device 2 circuit analyses monitoring battery pack when the value difference value is pressed in wantonly two crosstalks greater than set point, carries out balance to the charging current of every string; When the voltage of rechargeable battery set reaches the charging set point or when wherein a string battery pack reaches the charging set point, cut off charging current and stop charging.In the present embodiment, be provided with the output switch at control device 2, be used for the control output current.When opening the output switch, the voltage of battery pack can directly connect the power device of direct current, as the direct-current LED lamp.Also can the voltage process constant voltage of lithium ion battery group 3 be changed by another auxiliary modular converter 8 and become the electrical appliance required voltage, connect power device again, as convert 5V voltage to, miniaturized electronicss such as mobile phone are charged, or output 12V voltage, to direct current TV even load equipment charge.In the discharge process, control device 2 circuit are analyzed the voltage of monitoring battery pack each string equally, when the voltage of rechargeable battery set is lower than the charging set point or when wherein a string battery pack is lower than the discharge set point, cuts off discharging current and stop discharge.
In the present embodiment, solar panels are to 3 chargings of lithium ion battery group, and in the process of lithium ion battery group 3 discharges, 2 pairs of chargings of control device and discharging current are also monitored, and when charging and put an electric current above set point, in time cut off electric current.The voltage of monitoring lithium ion battery group 3, according to the charging and discharging curve characteristic of battery voltage, the magnitude of voltage when finding out different battery electric quantity is used to indicate the electric weight of battery pack.
System configuration needs according to reality; can increase temperature protection function on the control device, increase temperature sensor port at control device, temperature sensor detects the variations in temperature of lithium ion battery group; when the temperature of battery pack surpasses the safe handling temperature of setting, cut off charging and discharging currents.
By above-mentioned character express and by reference to the accompanying drawings as can be seen, adopt the present invention after, by discharging and recharging the DC-DC transition components in the control device, convert the lithium ion battery electric energy stored to utilization voltage, use for the user.Control device also comprises lithium ion battery BMS function, i.e. functions such as super-charge super-discharge protection, charge and discharge balancing, electric weight indication, temperature protection.Owing to the lithium ion battery that has adopted the energy density height, had extended cycle life, effectively reduced the volume and weight of whole system.It is flexible more and convenient that it is used.
Certainly, more than only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other execution mode.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (6)
1. solar energy lithium battery family energy storage device, include solar module, it is characterized in that: be connected with control device on the energy source output terminal head of described solar module, be connected with the lithium ion battery group on the energy reserves port of described control device, described control device is provided with separate output control switch, output interface.
2. a kind of solar energy lithium battery according to claim 1 family energy storage device; it is characterized in that: be provided with in the described control device and discharge and recharge the DC-DC transition components; the output of the described DC-DC of discharging and recharging transition components can link to each other by the source output terminal head with solar module; the output of the described DC-DC of discharging and recharging transition components is protected assembly by BMS, connects output control switch and output interface.
3. a kind of solar energy lithium battery according to claim 1 family energy storage device, it is characterized in that: described control device is provided with display module.
4. a kind of solar energy lithium battery according to claim 1 family energy storage device, it is characterized in that: it is that the monomer lithium ion battery is composed in series that described ion battery group is adopted, or composed in parallel by the monomer lithium ion battery, or formed by the connection in series-parallel of monomer lithium ion battery.
5. a kind of solar energy lithium battery according to claim 1 family energy storage device is characterized in that: be provided with auxiliary modular converter between the described output interface.
6. a kind of solar energy lithium battery according to claim 1 family energy storage device, it is characterized in that: described output interface includes 12V/5A lead-out terminal and 5V/1A lead-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100925667A CN103208836A (en) | 2013-03-22 | 2013-03-22 | Outdoor solar lithium battery energy storage device |
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| CN2013100925667A CN103208836A (en) | 2013-03-22 | 2013-03-22 | Outdoor solar lithium battery energy storage device |
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| CN103208836A true CN103208836A (en) | 2013-07-17 |
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| CN2013100925667A Pending CN103208836A (en) | 2013-03-22 | 2013-03-22 | Outdoor solar lithium battery energy storage device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428735A (en) * | 2015-12-31 | 2016-03-23 | 李承金 | Storage-control-integrated solar energy lithium battery module |
| CN106230009A (en) * | 2016-08-30 | 2016-12-14 | 江苏耐思特新能源科技有限公司 | The EMS of a kind of family energy storaging product and method |
| CN106953584A (en) * | 2017-03-31 | 2017-07-14 | 北京北交新能科技有限公司 | A kind of track traffic solar energy storage system |
| CN112995554A (en) * | 2021-03-27 | 2021-06-18 | 广州市东品电子科技有限公司 | Photovoltaic television system |
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| CN101242105A (en) * | 2008-03-17 | 2008-08-13 | 云南晶能科技有限公司 | Photovoltaic system intelligent complementary control charging/discharging method |
| US20110234164A1 (en) * | 2010-03-29 | 2011-09-29 | Kimihiko Furukawa | Power supply device capable of equalizing electrical properties of batteries |
| CN102545291A (en) * | 2010-12-29 | 2012-07-04 | 清华大学 | Solar power storage system and solar power supply system |
| CN203119563U (en) * | 2013-03-22 | 2013-08-07 | 苏州能斯特新能源有限公司 | Household direct-current energy storage equipment for photovoltaic lithium batteries |
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2013
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Patent Citations (5)
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| US6777915B2 (en) * | 2000-06-30 | 2004-08-17 | Matsushita Electric Industrial Co., Ltd. | Charger, battery pack, and charging system using the charger and battery pack |
| CN101242105A (en) * | 2008-03-17 | 2008-08-13 | 云南晶能科技有限公司 | Photovoltaic system intelligent complementary control charging/discharging method |
| US20110234164A1 (en) * | 2010-03-29 | 2011-09-29 | Kimihiko Furukawa | Power supply device capable of equalizing electrical properties of batteries |
| CN102545291A (en) * | 2010-12-29 | 2012-07-04 | 清华大学 | Solar power storage system and solar power supply system |
| CN203119563U (en) * | 2013-03-22 | 2013-08-07 | 苏州能斯特新能源有限公司 | Household direct-current energy storage equipment for photovoltaic lithium batteries |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428735A (en) * | 2015-12-31 | 2016-03-23 | 李承金 | Storage-control-integrated solar energy lithium battery module |
| CN106230009A (en) * | 2016-08-30 | 2016-12-14 | 江苏耐思特新能源科技有限公司 | The EMS of a kind of family energy storaging product and method |
| CN106953584A (en) * | 2017-03-31 | 2017-07-14 | 北京北交新能科技有限公司 | A kind of track traffic solar energy storage system |
| CN112995554A (en) * | 2021-03-27 | 2021-06-18 | 广州市东品电子科技有限公司 | Photovoltaic television system |
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Owner name: SUZHOU CANADIAN SOLAR INC. Effective date: 20141104 Owner name: CANADIAN (CHINA) INVESTMENT CO., LTD. Free format text: FORMER OWNER: NERNST NEW ENERGY (SUZHOU) CO., LTD. Effective date: 20141104 |
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Free format text: CORRECT: ADDRESS; FROM: 215129 SUZHOU, JIANGSU PROVINCE TO: 215011 SUZHOU, JIANGSU PROVINCE |
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Effective date of registration: 20141104 Address after: 215011 199 deer Road, hi tech Development Zone, Jiangsu, Suzhou Applicant after: Canadian (China) Investment Co., Ltd. Applicant after: Suzhou Canadian Solar Inc. Address before: 215129, No. 30, environmental protection industrial park, 369 deer Road, hi tech Zone, Jiangsu, Suzhou Applicant before: Nernst New Energy (Suzhou) Co., Ltd. |
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Application publication date: 20130717 |