CN106711526A - Energy storage lithium battery pack and capacity expansion method thereof - Google Patents
Energy storage lithium battery pack and capacity expansion method thereof Download PDFInfo
- Publication number
- CN106711526A CN106711526A CN201710073006.5A CN201710073006A CN106711526A CN 106711526 A CN106711526 A CN 106711526A CN 201710073006 A CN201710073006 A CN 201710073006A CN 106711526 A CN106711526 A CN 106711526A
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- Prior art keywords
- lithium battery
- battery
- group
- battery pack
- energy
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Classifications
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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
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
-
- 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 invention discloses an energy storage lithium battery pack. The energy storage lithium battery pack comprises an energy storage lithium battery pack already in a system currently and infinite standby lithium battery packs. The battery packs already in the system are connected in parallel to expand the capacity, can automatically allocate main engines during connection in parallel for communication and interaction with a top layer controller, the voltage consistency of the battery packs is realized by controlling on/off of a charge and discharge switch, the occurrence of loop current is prevented, and in addition, an overcurrent protection device is added to prevent the battery pack from being damaged by overcurrent. The infinite standby lithium battery packs are connected onto the batter packs already in the system through a parallel connection mode. Meanwhile, the fact that the main engines are automatically allocated for communication and interaction with the top layer controller when the infinite standby lithium battery packs are connected with the battery packs in the system in parallel to expand the capacity is guaranteed, and the voltage consistency of the battery packs is also realized by controlling on/off of the charge and discharge switch.
Description
Technical field
The present invention relates to lithium battery group, more particularly to a kind of energy-storage lithium battery group and its expansion method.
Background technology
In recent years, lithium ion battery technology is increasingly mature, with high circulation life-span, high-energy-density, high security, green ring
The advantages of guarantor so that Li-ion batteries piles are more and more in the application of current base station energy storage, family's energy storage, industry and commerce energy storage.So
And different site of deployment needs the energy of storage also different, some lithium battery groups only considered current use using when installing
, if future, need for electricity increased, it is necessary to store more energy, can only be replaced for lithium battery group by electric demand, and cannot
Realize dilatation.
Because being needed and top controller interactive communication when Li-ion batteries piles are used, if lithium battery group carried out simultaneously
Connection, the communication interaction with top controller, this loong shunt cannot not then be realized between several Battery packs of that parallel connection from a group relation
Battery pack due to state-of-charge may be inconsistent, cause voltage inconsistent, circulation will be produced when in parallel, when circulation is serious
Battery pack charge or discharge overcurrent protection can be directly resulted in, so as to damage battery pack.
Also there is the expansion method of some lithium battery groups in the prior art, it is that just closure is filled after electricity in battery pack to have a kind of way
Electricity and discharge switch, if battery voltage is inconsistent, just have circulation problem, are likely to result in battery pack charge or discharge protection；
Also another way is not close charging and discharging switch in battery pack after electricity, by judging adjacent battery pack pressure difference, then
Loop current is limited by current-limiting resistance, secondary method number of comparisons is more, and efficiency is low, it is impossible to thoroughly solve the problems, such as loop current.
The patent of Patent No. CN201610818150.2 provides a kind of lithium battery group, and can not only be independently operated, can also
It is parallel extended between the multiple battery packs of realization, while also having prevented the appearance of circulation.But, using this way, also only
Limited dilatation can only be realized, it is impossible to the possibility of the unlimited dilatation of lithium battery group.
In order to solve problem above, that is, the unlimited dilatation of lithium battery in parallel is realized, and prevent the appearance of circulation, and keep lithium
The efficient operation of battery, the present invention provides a kind of method and corresponding lithium battery group of the unlimited dilatation of lithium battery group.
The content of the invention
The present invention relates to a kind of energy-storage lithium battery group and its expansion method.
A kind of energy-storage lithium battery group, including energy-storage lithium battery group inside system at present, and it is unlimited individual standby
Lithium battery group.It is parallel extended between described multiple battery packs inside system, in parallel connection automatic distribution main frame with
Top controller communicate and mutually hands over, and realizes that the voltage of multiple battery packs is consistent by controlling charging and discharging to switch on-off
Property, the appearance of loop current is prevented, overcurrent protective device is increased in addition, prevent excessively stream from causing battery damage.Described is unlimited
Individual standby lithium pond group, is also to be connected in described multiple battery packs inside system by parallel way.Meanwhile,
Be necessary to ensure that unlimited described standby lithium pond group with system inside multiple battery packs it is parallel extended when, can also realize from
Dynamic distribution main frame carries out communication interaction with top controller, also multiple by controlling charging and discharging to switch on-off realization
The voltage uniformity of battery pack.
Further, described energy-storage lithium battery group inside system, and unlimited standby lithium pond group, bag
Include casing, the multiple batteries being installed in series in casing, battery management module, current limliting module, charge switch, discharge switch and sky
Air cock, wherein：
Further, startup switch is provided with before described casing, also has two communications to connect on the back side of the casing
Socket, two dynamic connectors.
Further, the charge switch and discharge switch are connected in the negative output line of battery, while and cell tube
Reason module connection, the control to battery charging and discharging is realized by battery management module.
Further, the startup switch connects the battery management module, for starting battery management module.
Further, the communication plug receptacle connection battery management module, by order wire realize multiple lithium battery groups it
Between be in communication with each other.
Further, the dynamic connector connection battery plus-negative plate, by between the multiple lithium battery groups of power line realization
Parallel connection.
Further, the current limliting block coupled in series is electric with the output for limiting lithium battery group on the output line of GND
Stream, realizes the harmony of each lithium battery group electric current.
Further, the air switch is connected on the output line of anode, and secondary excessively stream guarantor is carried out to lithium battery group
Shield, disconnects protecting battery after current limliting Module Fail.
Further, the numbering of battery pack is prestored in the battery management module, and numbering is unique, realizes battery
The authentication of group.Further, energy-storage lithium battery group inside system be encoded to it is pre-set smaller
Digital code, unlimited standby lithium pond group use the big numeral of the coding than energy-storage lithium battery group inside system
Code.
A kind of expansion method of energy-storage lithium battery group, it is characterised in that concretely comprise the following steps：
A, connection：
By communication plug receptacle and the EMS of outside between energy-storage lithium battery group inside system
It is sequentially connected with order wire, realizes carrying out data interaction between lithium battery group and with outside EMS；Will
Dynamic connector between multiple lithium battery groups is sequentially connected with power line, then connects civil power by inverter.
Likewise, when m standby lithium pond group is needed to use, standby lithium battery group is according in paralleling model and system
The lithium battery group connection in face, that is to say, that dynamic connector is sequentially connected with power line between standby lithium battery group, and
The dynamic connector power line of last lithium battery group inside first standby lithium pond group dynamic connector and system
It is attached.By the communication of all lithium battery groups (including standby lithium pond group and the energy-storage lithium battery group inside system)
Plug receptacle is sequentially connected with the EMS of outside with order wire.Finally by inverter civil power in succession.
B, slave distribution：
The startup switch of all lithium battery groups is opened in 30 seconds, each battery management module sends out the numbering of itself
Go, while receive numbering that other battery management modules bring and be compared to each other, it is determined that the minimum lithium battery group of numbering
It is main frame, remaining lithium battery group is slave, main frame is attached with the EMS of outside and communicates.
C, regulation voltage level are consistent：
The reference voltage set between two adjacent lithium battery groups is Vx.When main frame is sent out to outside EMS
When sending charging instruction, outside EMS control inverter charges to lithium battery group, while each lithium battery group
Battery management module measure the magnitude of voltage of each battery pack in real time, and main frame is sent to by order wire, main frame will be collected into
N-th and the voltage of (n+1) individual battery pack compare, when the voltage and (n+1) individual battery pack of n-th battery pack
Voltage difference △ V=| Vn-Vn+1 | more than reference voltage Vx when, then charged to (n+1) individual battery pack, until △ V<≤
During Vx, then stop being charged to (n+1) individual battery pack.
D, discharge and recharge：
After each lithium battery group magnitude of voltage is consistent, discharge and recharge can be normally carried out and used.
F, overcurrent protection：
During discharge and recharge, if charging and discharging currents are less than the limitation electric current in current limiting module, current limiting module not work
Make, if more than limitation electric current, starting current limitation module is protected as charging and discharging currents using limiting electric current to battery.
When G, discharge and recharge, if current limiting module is damaged, air switch carries out second class protection, and air switch is automatic during excessively stream
Disconnect.
Compared with prior art, can be infinitely parallel extended between lithium battery group, when increased the practical application of lithium battery
Between.And the basis distributed as slave using lithium battery unique encodings, the automatic sequential distribution of slave is realized, realize
With the interactive communication of outside EMS.
Each module voltage is collected using main frame, the voltage of each two adjacent battery packs is compared, by judging to press
Difference come carry out further battery group closure whether, until voltage is consistent, the method number of comparisons is few, efficiently, can thoroughly disappear
Except there is loop current between battery pack.
Brief description of the drawings：
Fig. 1 is the circuit module figure of disclosed energy-storage lithium battery group.
Fig. 2 is the schematic diagram of specific implementation case of the invention.
Specific implementation case 1：
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description.
As shown in figure 1, a kind of disclosed energy-storage lithium battery group inside system, and it is unlimited individual standby
With lithium battery group, including casing, the multiple batteries being installed in series in casing, battery management module, current limliting module, charging are opened
Pass, discharge switch and air switch, wherein：
The box back surface is provided with startup switch, two communication plug receptacles, two dynamic connectors.
The charge switch and discharge switch are connected in the negative output line of battery, while connecting with battery management module
Connect, control to open closure so as to realize the control to battery charging and discharging by battery management module.
The startup switch connects the battery management module, by mutual between the multiple lithium battery groups of order wire realization
Communication.
The dynamic connector connects battery plus-negative plate, and the parallel connection between multiple lithium battery groups is realized by power line.
The current limliting block coupled in series, to limit the output current of lithium battery group, is realized each on the output line of GND
The harmony of individual lithium battery group electric current.
The air switch is connected on the output line of anode, and secondary overcurrent protection is carried out to lithium battery group, in limit
Disconnect protecting battery after flow module failure.
The battery management module is used to realize the collection of battery data, the numbering of battery pack is prestored inside it, and compile
Number it is unique, realizes the authentication of battery pack.Energy-storage lithium battery group inside system is encoded to 1 He as shown in Figure 2
2, later increased a standby lithium pond group again, standby lithium pond group is encoded to 3.
A kind of expansion method of energy-storage lithium battery, it is characterised in that concretely comprise the following steps：
By communication jacks and the EMS of outside between lithium battery group 1, lithium battery group 2 and lithium battery group 3
It is attached with order wire, the dynamic connector between multiple lithium battery groups is sequentially connected with power line, is then passed through
Inverter connects civil power.
The concrete form of connection is that one order wire interface of lithium battery group 1 is connected into lithium battery group by order wire
A 2 communication interface, another communication interface of lithium battery group 2 is connected to the one of lithium battery group 3 by order wire
Individual communication interface, the energy management system of outside is connected to by order wire by another communication plug receptacle of lithium battery group 3
System, now all of order wire is equivalent to the EMS of a communication bus, these three lithium battery groups and outside
It is connected with the communication bus, realizes mutual data interaction.
The connected mode of dynamic connector is consistent with communication plug receptacle, is sequentially connected, and is eventually connected to inverter.
Three startup switches of lithium battery group are opened in 30s, each battery management module sends out the numbering of itself
Go, while receiving the numbering that other battery management modules are brought, determine 1 main frame of battery pack, other two battery packs be from
Machine, main frame is attached with the EMS of outside and communicates.
When main frame sends charging instruction to outside EMS, outside EMS control inverter
Lithium battery group is charged, while the battery management module of each lithium battery group measures the magnitude of voltage of battery pack in real time, and is led to
Cross order wire and be sent to main frame, main frame charges first, after waiting main frame charging to terminate, main frame is compared each magnitude of voltage collected
Relatively and judge size, send close command to lithium battery group 2, charge switch is closed by the battery management module of lithium battery group 2
And discharge switch, then the magnitude of voltage of lithium battery 2 is compared with the magnitude of voltage of lithium battery 1, if lithium battery 1 and lithium battery 2
Pressure difference less than setting pressure difference, then stop being charged to lithium battery 2, then closed by the battery management module of lithium battery group 3 and filled
, then with the magnitude of voltage of lithium battery 2 be compared the magnitude of voltage of lithium battery 3 by electric switch and discharge switch, if lithium battery 2 and lithium
The pressure difference of battery 3 is less than setting value, then stop being charged to lithium battery 3.
Up to the present, all of lithium battery group whole charging complete.And ensure that the voltage of each lithium battery group is consistent,
The lithium battery group can be normally carried out discharge and recharge and use.
During discharge and recharge, if charging and discharging currents are less than the limitation electric current in current limiting module, current limiting module not work
Make, if charging and discharging currents are more than limitation electric current, starting current limitation module.
During discharge and recharge, if limitation current module is damaged, air switch disconnects automatically during excessively stream.
Embodiment described above, its description is more specific and detailed, but therefore can not be interpreted as to patent of the present invention
The limitation of scope.It should be pointed out that for the person of ordinary skill of the art, not departing from the premise of present inventive concept
Under, various modifications and improvements can be made, these belong to protection scope of the present invention.Therefore, the protection of patent of the present invention
Scope should be determined by the appended claims.
Claims (5)
1. a kind of energy-storage lithium battery group, it is characterised in that：Including energy-storage lithium battery group inside system at present, Yi Jiwu
Limit standby lithium pond group.It is parallel extended between described multiple battery packs inside system, divide automatically in parallel connection
With main frame and top controller communicate and mutually hand over, and the electricity for realizing multiple battery packs is switched on-off by controlling charging and discharging
Pressure uniformity, prevents the appearance of loop current, and overcurrent protective device is increased in addition, prevents excessively stream from causing battery damage.It is described
Unlimited standby lithium pond group, be also that described multiple battery packs inside system are connected to by parallel way
On.Simultaneously, therefore, to assure that unlimited described standby lithium pond group with system inside multiple battery packs it is parallel extended when,
Can realize that automatic distribution main frame carries out communication interaction with top controller, also be switched on-off by controlling charging and discharging
Realize the voltage uniformity of multiple battery packs.
2. energy-storage lithium battery group as claimed in claim 1, it is characterised in that：Described energy storage lithium electricity inside system
Pond group, and unlimited standby lithium pond group, including casing, the multiple batteries being installed in series in casing, battery management module,
Current limliting module, charge switch, discharge switch and air switch.
3. energy-storage lithium battery group as claimed in claim 2, it is characterised in that：Battery pack is prestored in the battery management module
Numbering, and numbering be unique, realize the authentication of battery pack.Further, energy storage lithium inside system
Battery pack is encoded to pre-set less digital code, and unlimited standby lithium pond group is used than inside system
Energy-storage lithium battery group the big digital code of coding.Further, main frame is battery pack 1.
4. a kind of expansion method of energy-storage lithium battery group, it is characterised in that concretely comprise the following steps：A, connection；B, slave distribution：C、
Regulation voltage level is consistent；F, overcurrent protection；G, second protection.
5. the expansion method of energy-storage lithium battery group as claimed in claim 4, it is characterised in that：Described " regulation voltage level one
The specific steps of cause " include that the reference voltage set between two adjacent lithium battery groups is Vx.When main frame is to outside energy
When management system sends charging instruction, outside EMS control inverter charges to lithium battery group, while respectively
The battery management module of individual lithium battery group measures the magnitude of voltage of each battery pack in real time, and is sent to main frame by order wire, main
The voltage of will be collected into n-th of machine and (n+1) individual battery pack is compared, when n-th voltage and (n+1) of battery pack
When voltage difference △ V=| Vn-Vn+1 | of individual battery pack are more than reference voltage Vx, then charged to (n+1) individual battery pack, directly
To △ V<During≤Vx, then stop being charged to (n+1) individual battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710073006.5A CN106711526A (en) | 2017-02-10 | 2017-02-10 | Energy storage lithium battery pack and capacity expansion method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710073006.5A CN106711526A (en) | 2017-02-10 | 2017-02-10 | Energy storage lithium battery pack and capacity expansion method thereof |
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Family
ID=58909106
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049817A1 (en) * | 2016-09-13 | 2018-03-22 | 沃太能源南通有限公司 | Energy-storage lithium battery pack, and capacity expansion method for same |
| CN109412184A (en) * | 2018-10-31 | 2019-03-01 | 西安特锐德智能充电科技有限公司 | A kind of multiple-limb energy storage control device and method |
| CN109742831A (en) * | 2019-03-19 | 2019-05-10 | 莱克电气股份有限公司 | A kind of master-slave mode battery control system and method |
| CN109742471A (en) * | 2018-11-28 | 2019-05-10 | 北京海博思创科技有限公司 | The processing system of retired battery |
| CN111585356A (en) * | 2020-07-02 | 2020-08-25 | 阳光电源股份有限公司 | Capacity expansion method of energy storage system and energy storage system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255352A (en) * | 2011-05-26 | 2011-11-23 | 南昌大学 | Distributed intelligent power battery pack management system |
| CN103311561A (en) * | 2012-03-06 | 2013-09-18 | 北京联动天翼科技有限公司 | Apparatus and method for preparing high-capacity battery pack through parallel connection of low-capacity batteries |
| CN203218911U (en) * | 2013-03-04 | 2013-09-25 | 上海汽车集团股份有限公司 | Cell module management system |
| CN103580247A (en) * | 2013-10-18 | 2014-02-12 | 吉林省高新电动汽车有限公司 | Energy transfer two-way balancing system based on power inductor and control method thereof |
| CN105914411A (en) * | 2016-06-01 | 2016-08-31 | 惠州市蓝微新源技术有限公司 | Distributed type battery management system for electric vehicle |
| CN106169795A (en) * | 2016-09-13 | 2016-11-30 | 沃太能源南通有限公司 | A kind of energy-storage lithium battery group and expansion method thereof |
-
2017
- 2017-02-10 CN CN201710073006.5A patent/CN106711526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255352A (en) * | 2011-05-26 | 2011-11-23 | 南昌大学 | Distributed intelligent power battery pack management system |
| CN103311561A (en) * | 2012-03-06 | 2013-09-18 | 北京联动天翼科技有限公司 | Apparatus and method for preparing high-capacity battery pack through parallel connection of low-capacity batteries |
| CN203218911U (en) * | 2013-03-04 | 2013-09-25 | 上海汽车集团股份有限公司 | Cell module management system |
| CN103580247A (en) * | 2013-10-18 | 2014-02-12 | 吉林省高新电动汽车有限公司 | Energy transfer two-way balancing system based on power inductor and control method thereof |
| CN105914411A (en) * | 2016-06-01 | 2016-08-31 | 惠州市蓝微新源技术有限公司 | Distributed type battery management system for electric vehicle |
| CN106169795A (en) * | 2016-09-13 | 2016-11-30 | 沃太能源南通有限公司 | A kind of energy-storage lithium battery group and expansion method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049817A1 (en) * | 2016-09-13 | 2018-03-22 | 沃太能源南通有限公司 | Energy-storage lithium battery pack, and capacity expansion method for same |
| CN109412184A (en) * | 2018-10-31 | 2019-03-01 | 西安特锐德智能充电科技有限公司 | A kind of multiple-limb energy storage control device and method |
| CN109742471A (en) * | 2018-11-28 | 2019-05-10 | 北京海博思创科技有限公司 | The processing system of retired battery |
| CN109742471B (en) * | 2018-11-28 | 2020-12-15 | 北京海博思创科技股份有限公司 | Processing system of retired battery |
| CN109742831A (en) * | 2019-03-19 | 2019-05-10 | 莱克电气股份有限公司 | A kind of master-slave mode battery control system and method |
| CN111585356A (en) * | 2020-07-02 | 2020-08-25 | 阳光电源股份有限公司 | Capacity expansion method of energy storage system and energy storage system |
| US11616376B2 (en) | 2020-07-02 | 2023-03-28 | Sungrow Power Supply Co., Ltd. | Energy storage system and method for capacity expansion thereof |
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