CN112366371A - Lithium battery pack energy storage method and system, energy storage terminal and readable storage medium - Google Patents
Lithium battery pack energy storage method and system, energy storage terminal and readable storage medium Download PDFInfo
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- CN112366371A CN112366371A CN202011118985.XA CN202011118985A CN112366371A CN 112366371 A CN112366371 A CN 112366371A CN 202011118985 A CN202011118985 A CN 202011118985A CN 112366371 A CN112366371 A CN 112366371A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
Abstract
The application relates to a lithium battery pack energy storage method, which comprises the following steps: connecting a plurality of lithium batteries in series to form a lithium battery pack, and arranging a switch circuit assembly between two lithium batteries arranged at intervals; according to the series connection sequence of the lithium batteries, the serial number information of each lithium battery in the lithium battery pack is preset to form a sequence; acquiring energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information of the current lithium battery is lower than the standard energy storage information; the lithium battery pack comprises two lithium batteries connected with a fault lithium battery, an energy storage system, an energy storage terminal and a computer readable storage medium, wherein the two lithium batteries are defined as auxiliary lithium batteries, and the switching circuit assembly between the two current auxiliary lithium batteries is controlled to be switched on. This application has when certain lithium cell damages, and quick reconnection line to make the effect that lithium cell group continues to use.
Description
Technical Field
The present disclosure relates to the field of lithium battery energy storage technologies, and in particular, to a method and a system for storing energy in a lithium battery pack, an energy storage terminal, and a computer-readable storage medium.
Background
The areas such as inner Mongolia, Xinjiang, Qinghai and the like in China are vast, the construction difficulty of power transmission networks in many areas is high, the cost is high, meanwhile, most of the areas have abundant resources such as wind power, illumination and the like, and a good method for solving the power utilization problem is to build a distributed energy micro-grid system for power supply, however, wind energy and solar energy generally have intermittency, volatility and instability, the commercial application is inconvenient, the energy storage system can solve the necessary equipment for instability and randomness of new energy power generation, and the power supply quality of wind power and light power generation can be improved. The energy storage lithium battery system has obvious advantages in service life, energy, power performance and use performance in high and low temperature environments, and can be widely applied to remote areas, isolated islands and other areas without power grid access as an off-grid wind and light energy storage system in the future; the lithium battery energy storage system in the prior art is complex, is inconvenient for large-scale application, and has complex internal control and high cost.
In view of the above-mentioned related technologies, the inventors consider that there is a defect that a lithium battery pack formed by lithium batteries is damaged during a charging process, so that the whole lithium battery pack cannot be used.
Disclosure of Invention
In order to solve the problem that the whole lithium battery pack cannot be used due to damage of a certain lithium battery, the application provides an energy storage method and system of the lithium battery pack, an energy storage terminal and a computer readable storage medium.
In a first aspect, the present application provides an energy storage system for a lithium battery pack, which adopts the following technical scheme:
a lithium battery pack energy storage method comprises the following steps:
connecting a plurality of lithium batteries in series to form a lithium battery pack, and arranging a switch circuit assembly between two lithium batteries arranged at intervals;
according to the series connection sequence of the lithium batteries, the serial number information of each lithium battery in the lithium battery pack is preset to form a sequence;
acquiring energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information of the current lithium battery is lower than the standard energy storage information;
two lithium batteries connected with the fault lithium battery are defined as auxiliary lithium batteries, and the switching circuit assembly between the two current auxiliary lithium batteries is controlled to be switched on.
Through adopting above-mentioned technical scheme, through the energy storage information who gathers the lithium cell, compare energy storage information and standard energy storage information to judge whether the lithium cell damages, perhaps the lithium cell charge volume is not up to standard, if the lithium cell is determined to the trouble lithium cell, then switch on between two lithium cells that the trouble lithium cell links to each other of control, give up the trouble lithium cell, make whole lithium cell group can normal use, also more simple and convenient in the operation.
Optionally, the method includes:
presetting a display area, and dividing the display area into a plurality of display sub-areas according to the number of lithium batteries;
presetting a one-to-one corresponding relation between the display subareas and the serial number information;
and calling the serial number information and the corresponding energy storage information to the display subarea according to the one-to-one corresponding relation between the display subarea and the serial number information.
Through adopting above-mentioned technical scheme, set for a display area, this display area can be for the display screen, divides the display screen according to the quantity of lithium cell, obtains a plurality of display subareas that correspond lithium cell quantity, shows that a plurality of sub-screens that the sub-area can cut apart the formation for the display screen, can feed back the energy storage information of every lithium cell to the sub-screen and show, is convenient for observe the energy storage information in real time, and is more convenient in the operation.
Optionally, the method for dividing the display area into a plurality of display sub-areas includes:
acquiring the quantity information of the lithium batteries;
dividing the quantity information to obtain division rule information of region division;
the display area is divided into a plurality of display sub-areas based on the division rule information.
Through adopting above-mentioned technical scheme, it is specific, the form of cutting apart the screen has a lot of, and the lithium cell that includes in the lithium cell group is a lot of, generally can obtain multiunit data through carrying out division operation, and then obtains division rule information, can cut apart into a plurality of display subareas with the display area through rule information to observe the energy storage information of all lithium cells, it is easy and convenient in the operation.
Optionally, the method for controlling the conduction of the switch line assembly between the two current auxiliary lithium batteries includes a manual control method and/or an automatic control method.
By adopting the technical scheme, the switch circuit assembly is switched on in various modes, the switch circuit assembly can be switched on or off by manual control or automatic control or combination of the manual control and the automatic control, and the operation is simple and convenient.
Optionally, the manual control method includes:
presetting a one-to-one corresponding relation between display sub-regions and trigger signals for controlling the switch circuit components to be conducted;
acquiring trigger area information and determining a current display sub-area;
and controlling the switch circuit component corresponding to the current display sub-region to be switched on according to the one-to-one correspondence of the display sub-region and the trigger signal for controlling the switch circuit component to be switched on.
By adopting the technical scheme, the lithium batteries on two sides of the fault lithium battery can be controlled to be mutually conducted by clicking the fault lithium battery on the display area, the manual operation is very simple and convenient, and the value of the method is increased.
Optionally, a plurality of spare lithium batteries are preset;
selecting a corresponding number of spare lithium batteries according to the number of the failed lithium batteries;
and connecting the standby lithium battery in the energy storage loop in series.
Through adopting above-mentioned technical scheme, when a plurality of trouble lithium cells appear in the lithium cell, for the whole quantity of guarantee lithium cell group is unchangeable, through predetermineeing a plurality of reserve lithium cells, establish ties reserve lithium cell in the return circuit according to quantity, it is simple and convenient more in the operation.
In a second aspect, the present application provides an energy storage system for a lithium battery pack, which adopts the following technical scheme:
a lithium battery pack energy storage system, comprising:
a switch circuit assembly, two lithium batteries arranged at intervals, the lithium batteries are connected in series to form a lithium battery pack
The database is used for presetting serial number information of each lithium battery in the lithium battery pack to form a sequence;
the information comparison module is used for acquiring energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information of the current lithium battery is lower than the standard energy storage information;
and the control module defines two lithium batteries connected with the fault lithium battery as auxiliary lithium batteries and controls the switch circuit assembly between the two current auxiliary lithium batteries to be switched on.
Through adopting above-mentioned technical scheme, through the energy storage information who gathers the lithium cell, compare energy storage information and standard energy storage information to judge whether the lithium cell damages, perhaps the lithium cell charge volume is not up to standard, if the lithium cell is determined to the trouble lithium cell, then switch on between two lithium cells that the trouble lithium cell links to each other of control, give up the trouble lithium cell, make whole lithium cell group can normal use, also more simple and convenient in the operation.
In a third aspect, the present application provides an energy storage terminal for a lithium battery pack, which adopts the following technical scheme:
a lithium battery pack energy storage terminal comprises a memory and a processor, wherein a computer program which can be loaded by the processor and used for executing the lithium battery pack energy storage method is stored in the memory.
Through adopting above-mentioned technical scheme, through the energy storage information who gathers the lithium cell, compare energy storage information and standard energy storage information to judge whether the lithium cell damages, perhaps the lithium cell charge volume is not up to standard, if the lithium cell is determined to the trouble lithium cell, then switch on between two lithium cells that the trouble lithium cell links to each other of control, give up the trouble lithium cell, make whole lithium cell group can normal use, also more simple and convenient in the operation.
In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer readable storage medium stores a computer program that can be loaded by a processor and execute the above-mentioned energy storage method for a lithium battery pack.
Through adopting above-mentioned technical scheme, cross the energy storage information who gathers the lithium cell, compare energy storage information and standard energy storage information to judge whether the lithium cell damages, perhaps the lithium cell charge volume is not up to standard, if the lithium cell is determined to the trouble lithium cell, then switch on between two lithium cells that the control trouble lithium cell links to each other, give up the trouble lithium cell, make whole lithium cell group can normal use, also more simple and convenient in the operation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps of collecting energy storage information of the lithium batteries, comparing the energy storage information with standard energy storage information to judge whether the lithium batteries are damaged or not, or judging whether the charging quantity of the lithium batteries is not up to standard, if the lithium batteries are determined to be fault lithium batteries, controlling the conduction between two lithium batteries connected with the fault lithium batteries, and abandoning the fault lithium batteries, so that the whole lithium battery pack can be normally used, and the operation is simpler and more convenient;
2. the form of cutting apart the screen has a lot of, and the lithium cell that includes in the lithium cell group is a lot of, generally can obtain multiunit data through carrying out division operation, and then obtains division rule information, can cut apart into a plurality of display subareas with the display area through rule information to observe the energy storage information of all lithium cells, it is easy and convenient in the operation.
Drawings
FIG. 1 is a flow chart of a method according to the first embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The first embodiment is as follows:
the embodiment of the application discloses an energy storage method of a lithium battery pack. Referring to fig. 1, a lithium battery pack energy storage method includes:
s100, connecting a plurality of lithium batteries in series to form a lithium battery pack, and arranging a switch circuit assembly between two lithium batteries arranged at intervals;
the lithium battery pack comprises a plurality of lithium batteries which are connected in series with each other, so that a rated voltage value is achieved.
The switch circuit assembly is arranged between two lithium batteries connected at any interval, the switch circuit assembly can be arranged on the side wall of each lithium battery, the switch circuit assembly can be pasted on the side wall of each lithium battery, the switch circuit assembly can comprise a photoelectric switch, an infrared switch, a relay switch and other switch components which are controlled to be switched on or switched off, mechanical components which are controlled to be switched on or switched off by mechanical linkage can be provided, and the switch circuit assembly can be used as the switch circuit assembly as long as the two lithium batteries which are controlled to be arranged at intervals through the form of receiving signals are mutually switched on or switched off.
S200, presetting serial number information of each lithium battery in the lithium battery pack according to the series sequence of the lithium batteries to form a sequence,
according to the order of head and the tail, establish the database of the sequence number of every lithium cell, store the sequence number information that corresponds every lithium cell sequence number in the database for every lithium cell all can find unique sequence number information, and the settlement of sequence number can be with a certain order, also can be with a lithium cell that corresponds that sequence number information is random, when carrying out data storage, need store according to the order of the end-to-end connection of lithium cell, for example: the first lithium battery serial number information is '7' and the second lithium battery serial number information is '2', so that when serial number information is arranged in sequence, the serial number information '7' is arranged next to the serial number information '2', and the serial number information between two adjacent lithium batteries can be conveniently mastered.
S300, collecting energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information is lower than the standard energy storage information.
Gather the energy storage information of every lithium cell, general lithium cell damages then energy storage information is zero, with energy storage information to standard energy storage information, has two kinds of situations this moment, if energy storage information is not more than standard energy storage information, judges this moment that the lithium cell is good lithium cell, if energy storage information is less than standard energy storage information, then the stored energy in the set time that shows this lithium cell is not enough, judges this lithium cell this moment and is trouble lithium cell, carries out fault handling.
And S400, presetting a display area, and displaying the energy storage information of the lithium battery in the display area.
The display area is a display screen, and the display screen and the lithium battery pack transmit signals in a wireless communication mode, specifically, the display screen can be an internet of things, an Ethernet and the like;
and S410, collecting the number information of the lithium batteries.
The first method is as follows: set up data reading module and data accumulation module in the display screen, the lithium cell information of the corresponding lithium cell that the data retrieval module transferred on the display screen through wireless communication's mode is transferred, the data accumulation module is transmitted to after the collection, the data accumulation module carries out the adder operation, in order to obtain the quantity information of waiting to confirm of lithium cell, the standard information of predetermineeing lithium cell quantity, to wait to confirm quantity information and standard information contrast, wait to confirm quantity information not equal to standard information and then carry out the collection of the quantity information of lithium cell again, until waiting to confirm that quantity information equals standard information, wait to confirm quantity information this moment and be the quantity information of current lithium cell.
The second method comprises the following steps: acquiring length, width and height information of the lithium battery pack in an image acquisition and acquisition mode, wherein the color of adjacent lithium batteries in the lithium battery pack is different from the color of gaps among the lithium batteries, and the gaps among the lithium batteries are acquired to form pattern information to be processed; analyzing the information of the pattern to be processed to determine the length and width of a minimum area wrapped by the lines formed by the gaps; calculating to obtain minimum area information of a minimum region formed by enclosure, calculating to obtain the length and width of the pattern information to be processed, and calculating to obtain the pattern area information corresponding to the pattern information to be processed; and carrying out division operation on the pattern area information and the minimum area information to obtain the number information of the side surfaces of the lithium battery, acquiring the number information of the front surface, the side surfaces and the depression surfaces of the lithium battery in the same way, and multiplying the number information of the three surfaces to obtain the number information of the lithium battery.
And S420, dividing the screen according to the number information of the lithium batteries to form a plurality of display sub-areas.
S421, dividing the quantity information to obtain division rule information of the area division. The number information of the lithium battery is collected in S410, and the number information of the lithium battery is divided to obtain a plurality of division rule information, for example: the number information of the lithium batteries is "24", the division rule information may be: the number of lithium batteries is =4 × 6, 2 × 12, 3 × 8 or 1 × 24, the division rule information at this time is divided in an integer division mode, two numbers in each group of division rule information are recorded, two data in each group of division rule information are analyzed and compared, the two numbers in each group are subtracted, and the group with the minimum result is used as the current division rule information.
S422, the display area is divided into a plurality of display sub-areas based on the division rule information.
The division of the area is performed according to the division rule information described above so that the entire display area is divided into a plurality of display sub-areas.
And S430, presetting the one-to-one corresponding relation between the display sub-region and the sequence number information, calling the sequence number information and the corresponding energy storage information to the display sub-region according to the one-to-one corresponding relation between the display sub-region and the sequence number information, and displaying the sequence number information and the corresponding energy storage information of the lithium battery in the display region.
And S500, defining two lithium batteries connected with the fault lithium battery as auxiliary lithium batteries, and controlling the switch circuit assembly between the two current auxiliary lithium batteries to be switched on.
The method for controlling the conduction of the switch line assembly between the two current auxiliary lithium batteries comprises a manual control method and/or an automatic control method.
Automatic control: energy storage information of every lithium cell is as automatic control's sense terminal, when energy storage information is less than standard energy storage information, through judging the output and switching on the signal, supposes switch circuit subassembly to be the relay, the relay sets up on current lithium cell for connect rather than two adjacent lithium cells, when the relay receives the switch on signal, two supplementary lithium cells at trouble lithium cell both ends switch on under switch circuit subassembly's effect, and then with the short circuit of trouble lithium cell, whole lithium cell group can continue work.
Manual control: presetting a one-to-one corresponding relation between display subregions and trigger signals for controlling the switch-on of the switch circuit assembly, acquiring trigger region information and determining the current display subregions; the trigger area information is indication information, a current display subarea is determined according to the indicated position, the switch circuit assembly corresponding to the current display subarea is controlled to be switched on according to the one-to-one correspondence relationship between the display subarea and the trigger signal for controlling the switch circuit assembly to be switched on, and the switch circuit assembly comprises switch components such as a relay.
S600, presetting a plurality of spare lithium batteries; the lithium battery can be preinstalled but does not insert the lithium cell group, selects the reserve lithium battery that corresponds quantity according to the quantity of trouble lithium battery, can manually select also can select automatically, and the means selection is manual with reserve lithium battery access current, and the quantity of trouble lithium battery needs to be gathered in the automatic selection, and the reserve lithium battery that corresponds is matchd according to the quantity of trouble lithium battery inserts in the lithium cell group.
Example two:
a lithium battery pack energy storage system, comprising:
the switch circuit assembly is arranged between two lithium batteries at intervals, and the lithium batteries are connected in series to form a lithium battery pack;
the database is used for presetting serial number information of each lithium battery in the lithium battery pack to form a sequence;
the information comparison module is used for acquiring energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information of the current lithium battery is lower than the standard energy storage information;
and the control module defines two lithium batteries connected with the fault lithium battery as auxiliary lithium batteries and controls the switch circuit assembly between the two current auxiliary lithium batteries to be switched on.
The implementation principle of the lithium battery pack energy storage system in the embodiment of the application is as follows: carry out the information comparison through the information comparison to judge whether the lithium cell damages, perhaps the lithium cell charge volume is not up to standard, if the lithium cell is confirmed to be trouble lithium cell, then switch on between two lithium cells that link to each other through control module control trouble lithium cell, give up the trouble lithium cell of abandoning, make whole lithium cell group can normal use.
Example three:
a lithium battery pack energy storage terminal comprises a memory and a processor, wherein a computer program which can be loaded by the processor and used for executing the lithium battery pack energy storage method is stored in the memory.
Example four:
a computer readable storage medium stores a computer program that can be loaded by a processor and execute the above-mentioned energy storage method for a lithium battery pack.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (9)
1. A lithium battery pack energy storage method is characterized by comprising the following steps:
connecting a plurality of lithium batteries in series to form a lithium battery pack, and arranging a switch circuit assembly between two lithium batteries arranged at intervals;
according to the series connection sequence of the lithium batteries, the serial number information of each lithium battery in the lithium battery pack is preset to form a sequence;
acquiring energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information of the current lithium battery is lower than the standard energy storage information;
two lithium batteries connected with the fault lithium battery are defined as auxiliary lithium batteries, and the switching circuit assembly between the two current auxiliary lithium batteries is controlled to be switched on.
2. The lithium battery pack energy storage method according to claim 1, comprising the following steps:
presetting a display area, and dividing the display area into a plurality of display sub-areas according to the number of lithium batteries;
presetting a one-to-one corresponding relation between the display subareas and the serial number information;
and calling the serial number information and the corresponding energy storage information to the display subarea according to the one-to-one corresponding relation between the display subarea and the serial number information.
3. The lithium battery pack energy storage method according to claim 2, wherein the method for dividing the display area into a plurality of display sub-areas comprises the following steps:
acquiring the quantity information of the lithium batteries;
dividing the quantity information to obtain division rule information of region division;
the display area is divided into a plurality of display sub-areas based on the division rule information.
4. The lithium battery pack energy storage method according to claim 1, wherein the method comprises the following steps: the method for controlling the conduction of the switch line assembly between the two current auxiliary lithium batteries comprises a manual control method and/or an automatic control method.
5. The lithium battery pack energy storage method according to claim 4, wherein the method comprises the following steps: the manual control method comprises the following steps:
presetting a one-to-one corresponding relation between display sub-regions and trigger signals for controlling the switch circuit components to be conducted;
acquiring trigger area information and determining a current display sub-area;
and controlling the switch circuit component corresponding to the current display sub-region to be switched on according to the one-to-one correspondence of the display sub-region and the trigger signal for controlling the switch circuit component to be switched on.
6. The lithium battery pack energy storage method according to claim 1, wherein the method comprises the following steps:
presetting a plurality of spare lithium batteries;
selecting a corresponding number of spare lithium batteries according to the number of the failed lithium batteries;
and connecting the standby lithium battery in the energy storage loop in series.
7. A lithium battery pack energy storage system, comprising:
a switch circuit assembly, two lithium batteries arranged at intervals, the lithium batteries are connected in series to form a lithium battery pack
The database is used for presetting serial number information of each lithium battery in the lithium battery pack to form a sequence;
the information comparison module is used for acquiring energy storage information of the lithium battery, comparing the energy storage information of the current lithium battery with preset standard energy storage information, and judging the current lithium battery to be a fault lithium battery if the energy storage information of the current lithium battery is lower than the standard energy storage information;
and the control module defines two lithium batteries connected with the fault lithium battery as auxiliary lithium batteries and controls the switch circuit assembly between the two current auxiliary lithium batteries to be switched on.
8. The utility model provides a lithium cell group energy storage terminal which characterized in that: comprising a memory and a processor, said memory having stored thereon a computer program which can be loaded by the processor and which performs the method according to any of claims 1 to 6.
9. A computer-readable storage medium characterized by: a computer program which can be loaded by a processor and which executes the method according to any of claims 1 to 6.
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| CN210092925U (en) * | 2019-07-28 | 2020-02-18 | 王京 | Energy storage system |
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