CN109143077A - A kind of equal balance system of new energy lithium battery automobile bus type - Google Patents
A kind of equal balance system of new energy lithium battery automobile bus type Download PDFInfo
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- CN109143077A CN109143077A CN201810982680.XA CN201810982680A CN109143077A CN 109143077 A CN109143077 A CN 109143077A CN 201810982680 A CN201810982680 A CN 201810982680A CN 109143077 A CN109143077 A CN 109143077A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000011217 control strategy Methods 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of equal balance systems of new energy lithium battery automobile bus type, it includes battery pack (1), two-way DC/DC converter (2) and equalization control module (3), battery pack includes the battery cell (1-1) being connected in series, two-way DC/DC converter is parallel on each battery cell, two-way DC/DC converter is electrically connected with equalization control module, the other end of each two-way DC/DC converter is in parallel with one balancing energy bus (4), battery pack both ends are provided with voltage detection circuit module (5), equalization control module provides control strategy according to the battery power status of detection battery cell, so that the remaining capacity of each battery cell in battery pack reaches consistent.The present invention uses the equal balance system of new energy lithium battery automobile bus type, it being capable of on-line checking battery pack working condition and state-of-charge, by the remaining capacity for measuring battery, dynamic monitoring is carried out to battery pack and battery cell operating status, guarantees that each battery cell is in same depth of discharge by equalization control module.
Description
Technical field
The present invention relates to technical field of new energy, and in particular to a kind of new energy lithium battery automobile bus type is balanced
System.
Background technique
Currently, new-energy automobile plays a very important role in automotive technology development.In order to meet new-energy automobile
High power applications demand, usually give new-energy automobile to power by battery pack that several hundred batteries form in series and parallel.It is processing
In the process since production technology and material are uneven, battery pole plates thickness, microporosity, the activation degree etc. of active material are a series of
Difference make it is not quite identical in inside battery structure, to influence battery.Therefore, those skilled in the art are needed
Develop a kind of equal balance system of new energy lithium battery automobile bus type.
Summary of the invention
The purpose of the present invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of new energy lithium battery
The equal balance system of automobile bus type, can on-line checking battery pack working condition and state-of-charge, pass through measurement battery residue
Electricity carries out dynamic monitoring to battery pack and battery cell operating status, is controlled between battery cell by equalization control module
Balanced energy flow to guarantee that each battery cell is in same depth of discharge.
In order to achieve the above object of the invention, technical solution provided by the invention is as follows: a kind of new energy lithium battery automobile
The equal balance system of bus type, it includes battery pack, two-way DC/DC converter and equalization control module, and the battery pack includes mutually going here and there
The battery cell of connection, two-way DC/DC converter is parallel on each battery cell, and the two-way DC/DC converter is electrical
It is connected with equalization control module, the other end and a balancing energy bus parallel connection of each two-way DC/DC converter, the electricity
Pond group both ends are provided with the voltage detection circuit module for detecting battery pack output voltage, and the equalization control module is according to inspection
The battery power status for surveying battery cell provides control strategy, determines and controls two-way DC/DC converter progress energy content of battery stream
It is dynamic, and then realize energy content of battery two-way flow between battery cell and balancing energy bus, so that each electricity in battery pack
The remaining capacity of pond monomer reaches consistent；
The equalization control module include two-way Flyback equalizing circuit module, two close cycles sliding formwork control module and
Weigh policy function module, and the voltage detection circuit module and balance policy functional module are electrically connected, the balance policy function
Energy module is electrically connected with two-way Flyback equalizing circuit module and two close cycles sliding formwork control module respectively, described two-way
Flyback equalizing circuit module is also electrically connected with two close cycles sliding formwork control module, the two-way Flyback equalizing circuit module
Inside it is provided with power switch；
The two-way Flyback equalizing circuit module is used for the energy content of battery flow path of equal balance system, can be according to balanced plan
Slightly energy content of battery input or output are realized in the instruction of functional module, and are believed according to the control that two close cycles sliding formwork control module provides
Number realize input and output energy size；
Reference voltage that the two close cycles sliding formwork control module is provided according to balance policy functional module, battery cell are practical
Output voltage and two-way DC/DC converter current adjustment control amount are converted to PWM wave signal, and it is balanced to control two-way Flyback
The turn-on time of power switch in circuit module, to control the input and output of the energy content of battery by two-way DC/DC converter
Size, when two-way Flyback equalizing circuit module is in energy content of battery output state, which keeps energy
The voltage stabilization on equalizing bus bar is measured, reduces battery energy voltage fluctuation in balancing energy bus, and then improve equal balance system
Whole equalization efficiency and balancing speed, when two-way Flyback equalizing circuit module is in the state that the energy content of battery inputs, this pair
Closed loop sliding formwork control module by the average voltage of battery cell as the reference voltage, and make battery cell voltage-tracing dynamic become
Change balanced reference voltage, realize the validity of battery cell charging, avoiding the battery cell electricity in equal balance system is more than system
Average electricity and the loss for leading to energy；
The balance policy functional module is determined by the way that the battery cell voltage of reference voltage and its administration to be compared
The energy content of battery flow direction of two-way Flyback equalizing circuit module, and logic is generated by input signal, convert two-way DC/
The input quantity and output quantity signal of DC converter.
Preferably, in the energy content of battery balancing procedure of equal balance system, setting includes n battery list in battery pack
Body sets the output voltage of battery cell as Vb, the setting of battery pack output voltage values which detects
For Von, and calculate the average voltage of battery cellBy average voltageAs battery cells all in battery pack
Reference voltage value；
Set battery pack operating voltage threshold value VomaxAnd Vomin, the output voltage values Vo of battery pack in the course of worknWith this
Battery pack operating voltage threshold value compares, and judges that battery pack working condition is in Vomin≤Von≤Vomin, to ensure entire battery
The trouble free service of group.
Preferably, battery cell charging/discharging voltage threshold value V is setbmaxAnd VbminAs cell safety work limitation,
The battery cell voltage value of a certain moment detection is set as Vbi, as battery cell voltage Vbi≥VmaxWhen, battery cell input
All output works as V to balancing energy bus to electric currentbi≤VminWhen, the output electric current of battery cell should be all from balancing energy bus
It is compensated, equalization control module calculates the voltage V of the n-th batteries monomerbiWithBetween voltage difference Vei, work as Vei> 0, should
Battery cell needs to export energy to balancing energy bus by control equalization control module；Work as Vei< 0, the battery cell need
Energy is obtained from balancing energy bus by control equalization control module.
Based on the above-mentioned technical proposal, of the invention that there is following technological merit compared with prior art:
The present invention uses the equal balance system of new energy lithium battery automobile bus type, being capable of on-line checking battery pack working condition
And state-of-charge carries out dynamic monitoring to battery pack and battery cell operating status, passes through by measuring the remaining capacity of battery
Equalization control module controls the balanced energy between battery cell and flows to guarantee that each battery cell is in same depth of discharge, prevents
Only battery cell overcharges or over-discharge, to extend the service life cycle of battery pack, further increase battery pack reliability and
Safety reduces battery pack operation expense, while realizing the stable equilibrium of the system in energy content of battery balancing procedure, mentions
High system reliability, stability and equalization efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the equal balance system of new energy lithium battery automobile bus type of the present invention.
Fig. 2 is the schematic diagram of internal structure of equalization control module of the present invention.
Fig. 3 is the control flow chart of the equal balance system of new energy lithium battery automobile bus type of the present invention.
In figure: 1. battery packs, 1-1. battery cell, 2. two-way DC/DC converters, 3. equalization control modules, 3-1. are two-way
Flyback equalizing circuit module, 3-2. two close cycles sliding formwork control module, 3-3. balance policy functional module, 3-4. power switch,
4. balancing energy bus, 5. voltage detection circuit modules.
Specific embodiment
Explanation that the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in Figure 1-Figure 3, the equal balance system of a kind of new energy lithium battery automobile bus type, it includes battery pack 1, two-way
DC/DC converter 2 and equalization control module 3, the battery pack 1 include the battery cell 1-1 being connected in series, each battery list
Two-way DC/DC converter 2 is parallel on body 1-1, the two-way DC/DC converter 2 is electrically connected with equalization control module 3, often
The other end of a two-way DC/DC converter 2 is in parallel with a balancing energy bus 4, and 1 both ends of battery pack, which are provided with, to be used for
The voltage detection circuit module 5 of battery pack output voltage is detected, the equalization control module 3 being capable of the work of on-line checking battery pack
State and state-of-charge carry out dynamic monitoring to battery pack and battery cell operating status by measuring the remaining capacity of battery,
And control strategy is provided according to the battery power status of detection battery cell, determine and controls two-way DC/DC converter progress electricity
Pond energy flow, and then realize energy content of battery two-way flow between battery cell and balancing energy bus, so that battery pack
In the remaining capacity of each battery cell reach consistent；
The equalization control module 3 includes two-way Flyback equalizing circuit module 3-1, two close cycles sliding formwork control module 3-2
And balance policy functional module 3-3, the voltage detection circuit module 5 pass through a signal wire and balance policy functional module 3-
3 be electrically connected, the balance policy functional module 3-3 respectively with two-way Flyback equalizing circuit module 3-1 and two close cycles sliding formwork
Control module 3-2 is electrically connected, and the two-way Flyback equalizing circuit module 3-1 is also electric with two close cycles sliding formwork control module 3-2
Property connection, be provided with power switch 3-4 in the two-way Flyback equalizing circuit module 3-1；
The two-way Flyback equalizing circuit module 3-1 is used for the energy content of battery flow path of equal balance system, can be according to equilibrium
Energy content of battery input or output are realized in the instruction of policy function module 3-3, and are provided according to two close cycles sliding formwork control module 3-2
Control signal realize input and output energy size；
Reference voltage that the two close cycles sliding formwork control module 3-2 is provided according to balance policy functional module 3-3, battery list
Body actual output voltage and two-way DC/DC converter current adjustment control amount are converted to PWM wave signal, control two-way
The turn-on time of power switch 3-4 in Flyback equalizing circuit module 3-1, to control by two-way DC/DC converter 2
The input and output size of the energy content of battery, when two-way Flyback equalizing circuit module 3-1 is in energy content of battery output state, this pair
Closed loop sliding formwork control module 3-2 keeps the voltage stabilization in balancing energy bus 4, reduces the energy content of battery in balancing energy bus 4
Voltage fluctuation, and then the whole equalization efficiency and balancing speed of equal balance system are improved, when two-way Flyback equalizing circuit module
For 3-1 in the state that the energy content of battery inputs, two close cycles sliding formwork control module 3-2 is using the average voltage of battery cell as reference
Voltage, and make the voltage-tracing dynamic change equilibrium reference voltage of battery cell, it realizes the validity of battery cell charging, avoids
Battery cell electricity leads to the loss of energy more than system average electricity in equal balance system；
The balance policy functional module 3-3 is compared by the battery cell voltage for administering reference voltage with it,
It determines the energy content of battery flow direction of two-way Flyback equalizing circuit module 3-1, and logic, conversion is generated by input signal
The input quantity and output quantity signal of two-way DC/DC converter 2.
In the energy content of battery balancing procedure of equal balance system, setting includes n battery cell in battery pack, sets battery list
The output voltage of body 1-1 is Vb, the battery pack output voltage values which detects are set as Von, and count
Calculate the average voltage of battery cellBy average voltageReference voltage value as battery cells all in battery pack；
Set battery pack operating voltage threshold value VomaxAnd Vomin, the output voltage values Vo of battery pack in the course of worknWith this
Battery pack operating voltage threshold value compares, and judges that battery pack working condition is in Vomin≤Von≤Vomin, to ensure entire battery
The trouble free service of group.Set battery cell charging/discharging voltage threshold value VbmaxAnd VbminAs the limitation of cell safety work, certain is set
The battery cell voltage value of one moment detection is Vbi, as battery cell voltage Vbi≥VmaxWhen, the electric current of battery cell input is complete
Portion is exported to balancing energy bus 4, works as Vbi≤VminWhen, the output electric current of battery cell should be obtained all from balancing energy bus 4
Compensation, equalization control module 3 calculate the voltage V of the n-th batteries monomerbiWithBetween voltage difference Vei, work as Vei> 0, the battery
Monomer needs to export energy to balancing energy bus 4 by control equalization control module 3；Work as Vei< 0, the battery cell need logical
It crosses control equalization control module 3 and obtains energy from balancing energy bus 4.
Above content is example and explanation of the invention, but does not mean that the obtainable advantage of the present invention is so limited, all
It is wherein one the advantages of may being realized in simple transformation, and/or some embodiments to structure in practice process of the present invention
It is a or it is multiple within the scope of protection of this application.
Claims (3)
1. a kind of equal balance system of new energy lithium battery automobile bus type, it is characterised in that: it includes battery pack (1), two-way DC/
DC converter (2) and equalization control module (3), the battery pack (1) include the battery cell (1-1) being connected in series, each described
Two-way DC/DC converter (2) is parallel on battery cell (1-1), the two-way DC/DC converter (2) is electrically connected with equilibrium
The other end of control module (3), each two-way DC/DC converter (2) is in parallel with one balancing energy bus (4), the electricity
Pond group (1) both ends are provided with the voltage detection circuit module (5) for detecting battery pack output voltage, the equalization control module
(3) control strategy is provided according to the battery power status of detection battery cell, determine and controls two-way DC/DC converter progress electricity
Pond energy flow, and then realize energy content of battery two-way flow between battery cell and balancing energy bus, so that battery pack
In the remaining capacity of each battery cell reach consistent；
The equalization control module (3) includes two-way Flyback equalizing circuit module (3-1), two close cycles sliding formwork control module (3-
2) and balance policy functional module (3-3), the voltage detection circuit module (5) and balance policy functional module (3-3) are electric
Property connection, the balance policy functional module (3-3) is sliding with two-way Flyback equalizing circuit module (3-1) and two close cycles respectively
Mould control module (3-2) be electrically connected, the two-way Flyback equalizing circuit module (3-1) also with two close cycles sliding formwork control mould
Block (3-2) is electrically connected, and is provided with power switch (3-4) in the two-way Flyback equalizing circuit module (3-1)；
The two-way Flyback equalizing circuit module (3-1) is used for the energy content of battery flow path of equal balance system, can be according to balanced plan
Slightly energy content of battery input or output are realized in the instruction of functional module (3-3), and are given according to two close cycles sliding formwork control module (3-2)
Control signal out realizes the size of input and output energy；
Reference voltage, the battery list that the two close cycles sliding formwork control module (3-2) provides according to balance policy functional module (3-3)
Body actual output voltage and two-way DC/DC converter current adjustment control amount are converted to PWM wave signal, control two-way
The turn-on time of power switch (3-4) in Flyback equalizing circuit module (3-1), to control by two-way DC/DC converter
(2) the input and output size of the energy content of battery, when two-way Flyback equalizing circuit module (3-1) is in energy content of battery output state
When, which keeps the voltage stabilization on balancing energy bus (4), reduces balancing energy bus
(4) battery energy voltage fluctuates on, and then improves the whole equalization efficiency and balancing speed of equal balance system, when two-way
For Flyback equalizing circuit module (3-1) in the state that the energy content of battery inputs, which will be electric
The average voltage of pond monomer as the reference voltage, and makes the voltage-tracing dynamic change equilibrium reference voltage of battery cell, realizes
The validity of battery cell charging avoids the battery cell electricity in equal balance system from being more than system average electricity and lead to energy
Loss；
The balance policy functional module (3-3) is by the way that the battery cell voltage of reference voltage and its administration to be compared, certainly
The energy content of battery flow direction of fixed two-way Flyback equalizing circuit module (3-1), and logic, conversion are generated by input signal
The input quantity and output quantity signal of two-way DC/DC converter (2).
2. the equal balance system of new energy lithium battery automobile bus type according to claim 1, it is characterised in that: be in equilibrium
In the energy content of battery balancing procedure of system, setting includes n battery cell in battery pack, sets the output electricity of battery cell (1-1)
Pressure is Vb, the battery pack output voltage values which detects are set as Von, and calculate battery cell
Average voltageBy average voltageReference voltage value as battery cells all in battery pack；
Set battery pack operating voltage threshold value VomaxAnd Vomin, the output voltage values Vo of battery pack in the course of worknWith the battery pack
Operating voltage threshold value compares, and judges that battery pack working condition is in Vomin≤Von≤Vomin, to ensure the peace of entire battery pack
Full work.
3. the equal balance system of new energy lithium battery automobile bus type according to claim 2, it is characterised in that: setting battery
Monomer charging/discharging voltage threshold value VbmaxAnd VbminAs the limitation of cell safety work, the battery cell of a certain moment detection is set
Voltage value is Vbi, as battery cell voltage Vbi≥VmaxWhen, the electric current of battery cell input is all exported to balancing energy bus
(4), work as Vbi≤VminWhen, the output electric current of battery cell should be compensated all from balancing energy bus (4), Balance route mould
Block (3) calculates the voltage V of the n-th batteries monomerbiWithBetween voltage difference Vei, work as Vei> 0, battery cell needs pass through
It controls equalization control module (3) and exports energy to balancing energy bus (4)；Work as Vei< 0, the battery cell need equal by control
Weighing apparatus control module (3) obtains energy from balancing energy bus (4).
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| CN201810982680.XA CN109143077A (en) | 2018-08-27 | 2018-08-27 | A kind of equal balance system of new energy lithium battery automobile bus type |
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| CN201810982680.XA CN109143077A (en) | 2018-08-27 | 2018-08-27 | A kind of equal balance system of new energy lithium battery automobile bus type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374198A (en) * | 2022-01-19 | 2022-04-19 | 阳光电源股份有限公司 | Battery unit and energy storage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231544A (en) * | 2011-06-28 | 2011-11-02 | 中国科学院广州能源研究所 | External battery pack type electricity-supplement balancing system and method of energy storage system |
| CN102355031A (en) * | 2011-10-29 | 2012-02-15 | 重庆大学 | Active equalizing charging method and device for LiFePO4 power battery packs |
| CN102931849A (en) * | 2012-11-26 | 2013-02-13 | 宁德时代新能源科技有限公司 | Bidirectional DC (direct current)/DC conversion device |
| CN103682486A (en) * | 2013-12-23 | 2014-03-26 | 中国科学院电工研究所 | Multi-module cascading balancing method for cells |
-
2018
- 2018-08-27 CN CN201810982680.XA patent/CN109143077A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231544A (en) * | 2011-06-28 | 2011-11-02 | 中国科学院广州能源研究所 | External battery pack type electricity-supplement balancing system and method of energy storage system |
| CN102355031A (en) * | 2011-10-29 | 2012-02-15 | 重庆大学 | Active equalizing charging method and device for LiFePO4 power battery packs |
| CN102931849A (en) * | 2012-11-26 | 2013-02-13 | 宁德时代新能源科技有限公司 | Bidirectional DC (direct current)/DC conversion device |
| CN103682486A (en) * | 2013-12-23 | 2014-03-26 | 中国科学院电工研究所 | Multi-module cascading balancing method for cells |
Non-Patent Citations (3)
| Title |
|---|
| 武美蓉: "总线式电池组均衡网络滑模控制方法研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 郑翔: "电动汽车锂离子电池组均衡管理系统设计", 《上海电机学院学报》 * |
| 黄志祥: "车载锂离子电池组的充电技术与均衡管理方法研究综述", 《汽车工业研究》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374198A (en) * | 2022-01-19 | 2022-04-19 | 阳光电源股份有限公司 | Battery unit and energy storage system |
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Application publication date: 20190104 |