CN108418263A - A kind of restructural equalizing circuit with additional supply - Google Patents
A kind of restructural equalizing circuit with additional supply Download PDFInfo
- Publication number
- CN108418263A CN108418263A CN201810094834.1A CN201810094834A CN108418263A CN 108418263 A CN108418263 A CN 108418263A CN 201810094834 A CN201810094834 A CN 201810094834A CN 108418263 A CN108418263 A CN 108418263A
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- Prior art keywords
- switch
- additional supply
- module
- battery
- restructural
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of restructural equalizing circuit with additional supply, including unit battery module, energy-storage battery group, additional supply module and load.Wherein unit battery module includes two switches and a battery, by the action for controlling respective switch, in that case it can be decided that the working condition of single battery.Energy-storage battery group is composed in series by each single battery.Additional supply module is switched by three, and an additional supply and a DC converter composition by corresponding control method, maintain the constant of load terminal voltage.The component that the present invention passes through increase lower cost, load terminal voltage can be being maintained in carrying out balancing procedure to energy-storage battery group or when percentage of batteries breaks down retaining the restructural equalizing circuit high flexibility and under the premise of high conversion efficiency advantage in balancing procedure.
Description
Technical field
The present invention relates to energy storage fields, especially battery pack balancing system, and in particular to it is a kind of with additional supply can
Reconstruct equalizing circuit.
Background technology
Due to inconsistency of battery during manufacture and use, and to improve battery pack active volume, reduce
Single battery is in the risk of super-charge super-discharge, needs to carry out each single battery in battery pack balanced.
Traditional active equalization method is more difficult while meeting flexibility, low cost and high conversion efficiency.And it is restructural equal
Weigh method of the circuit by making percentage of batteries out of service, and then is carried out to each single battery in battery pack balanced, therefore it can be with
Single battery in battery pack is carried out more neatly balanced.And the flowing since there is no electricity between battery pack,
Transfer efficiency can reach the height that traditional active equalization circuit is extremely difficult to.
But in battery pack when single battery progress equilibrium, load terminal voltage can exist larger restructural equalizing circuit
Fluctuation.
Invention content
In order to overcome above-mentioned the shortcomings of the prior art, the purpose of the present invention is to provide a kind of with additional supply
Restructural equalizing circuit.By increasing the component of lower cost, retaining restructural equalizing circuit Gao Ling in balancing procedure
While activity and high conversion efficiency advantage, load terminal voltage is maintained in balancing procedure or when percentage of batteries breaks down.
In order to achieve the above object, the technical solution adopted in the present invention is：It is a kind of restructural equal with additional supply
Weigh circuit, which is characterized in that including：Unit battery module, energy-storage battery group, additional supply module and load, each single battery
Block coupled in series constitutes energy-storage battery group, and additional supply module is in parallel with load after connecting with energy-storage battery group.
Further, the unit battery module, including：Switch S, switch K and single battery, switch S and single battery
It is in parallel with switch K after series connection.
Further, the additional supply module, including：Switch S1, switch S2, switch S3, an additional supply and one
A DC converter, switch S1 is in parallel with switch S3 after connecting with additional supply, the input terminal and additional supply of DC converter
It is connected, the output end of DC converter is in parallel with switch S3 after connecting with switch S2.
Further, the additional supply is the battery with the same or similar model of single battery in the energy-storage battery group
Composition.
Further, needed for the DC converter can be converted to additional supply voltage in the additional supply module
The voltage wanted is the load supplying.
Further, the operating mode of the restructural equalizing circuit includes：
When the energy-storage battery group is worked normally in discharge condition, switch S closures in each unit battery module and
Switch K is disconnected, and switch S3 is closed in the additional supply module and switch S1 and switch S2 are disconnected；
When the electric quantity of single batteries in the unit battery module is relatively low and needs equilibrium, or breaks down and must exit fortune
When row, switch S is disconnected in the corresponding unit battery module and switch K is closed, when single battery total voltage out of service and
When additional supply voltage is same or similar in the additional supply module, switch S1 is closed in the additional supply module, switch
S2 and switch S3 are disconnected；
When additional supply voltage phase difference is larger in the total voltage of single battery out of service and the additional supply module,
Switch S2 is closed in the additional supply module, and switch S1 and switch S3 are disconnected, DC converter in the additional supply module
Additional supply voltage in the additional supply module is converted into single battery total voltage out of service；
When the energy-storage battery group is in charged state, if higher and temporary there are electricity in the unit battery module
When the single battery that need not be charged, switch S is disconnected in the corresponding unit battery module and switch K is closed, remaining described list
Switch S is closed in body battery module and switch K is disconnected；
When additional supply charges in needing for the additional supply module, the additional supply module switch S1 be closed and
Switch S2 and switch S3 are disconnected, when that need not be that additional supply charges in the additional supply module, the additional supply mould
Switch S3 is closed in block and switch S1 and switch S2 are disconnected.
Compared with prior art, the invention has the advantages that：
(1) retain the restructural equalizing circuit high flexibility and the advantages of high conversion efficiency in balancing procedure；
(2) and load terminal voltage can be maintained in balancing procedure or when partial monosomy battery breaks down；
(3) under the premise of stating advantageous effect in realization, required increase component cost is less.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the restructural equalizing circuit of the present invention.
Fig. 2 is unit battery module schematic diagram.
Fig. 3 is additional supply module diagram.
In figure：1. unit battery module, 2. energy-storage battery groups, 3. additional supply modules, 4. loads, 5. with single battery string
The switch S of connection, 6. single batteries, the 7. switch K being in parallel with single battery and its concatenated switch S, 8. and additional electrical subject string
The switch S1 of connection, 9. additional supplies, 10. DC converters, 11. with DC converter output end concatenated switch S2,12. with it is attached
It powers up and its switch S3 that concatenated switch S1 is in parallel.
Specific implementation mode
For the ease of those of ordinary skill in the art understand and implement the present invention, with reference to embodiment to the present invention make into
The detailed description of one step, it should be understood that implementation example described herein is merely to illustrate and explain the present invention, and is not used to limit
The fixed present invention.
Restructural equalizing circuit of the present invention with additional supply, including unit battery module 1, energy-storage battery
Group 2, additional supply module 3, load 4, and the concatenated switch 5 of single battery, single battery 6 and single battery and its are connected out
The switch 7 being in parallel is closed, with the concatenated switch 8 of additional supply, additional supply 9, DC converter 10 is exported with DC converter
Concatenated switch 11 is held, the switch 12 being in parallel with additional supply and its concatenated switch.It is convenient for statement, it will be with single battery
Concatenated switch 5 is denoted as switch S.The switch 7 being in parallel with single battery and its tandem tap, is denoted as switch K.With additional electrical
Source-series switch 8, is denoted as switch S1.With the concatenated switch 11 of DC converter output end, it is denoted as switch S2.With additional supply
And its switch 12 that concatenated switch is in parallel, it is denoted as switch S3.
Each unit battery module 1 is connected, and energy-storage battery group 2 is constituted.Energy-storage battery group 2 is gone here and there with additional supply module 3
Join and in parallel with load 4, energy is provided for load 4.
Each unit battery module 1 includes switch S, switch K and single battery 6.Wherein single battery 6 and switch S goes here and there
It is in parallel with switch K again after connection.During carrying out equilibrium to single battery 6, switch S and switch K must there are one in closure
And another is in the state disconnected.
The additional supply module 3 includes switch S1, switch S2, switch S3, an additional supply and a DC converting
Device.Wherein additional supply 9 is in parallel with switch S3 after connecting with switch S1.The input terminal of DC converter 10 and 9 phase of additional supply
Even, output end is in parallel with switch S3 after connecting with switch S2, can the voltage of additional supply 9 be converted to required voltage,
Energy is provided as load 4.When each single battery in energy-storage battery group 2 carries out balanced, switch S1 and switch S2 and open
Pass S3 must there are one be in be closed and state of the another two in disconnection.
That thus brings has the technical effect that：By flexibly using additional supply module, restructural balanced electricity can retained
Road high flexibility and under the premise of high conversion efficiency advantage in balancing procedure, in balancing procedure or percentage of batteries group occurs therefore
Load terminal voltage is maintained when barrier.
When energy-storage battery group 2 is worked normally in discharge condition, the switch S in each unit battery module 1 is closed and switch K
It disconnects, switch S3 is closed in additional supply module 3 and switch S1 and switch S2 are disconnected.Each monomer electricity in energy-storage battery group 2 at this time
Pond is 4 power supply of load, and additional supply 9 is not 4 power supply of load.When relatively low there are electricity in energy-storage battery group 2 and need equilibrium
Single battery or single battery break down when must be out of service, switch S disconnections in corresponding unit battery module 1 and switch
K is closed, and above-mentioned single battery can be out of service.When single battery total voltage out of service is identical as the voltage of additional supply 9 or
When similar, switch S1 is closed in additional supply module 2, and switch S2 and switch S3 are disconnected.When single battery out of service is always electric
When pressure is larger with the voltage phase difference of additional supply 9, switch S2 is closed, switch S1 and S3 disconnection, and DC converter 10 is by additional electrical
The voltage in source 9 is transformed into single battery total voltage out of service, for 4 power supply of load.When energy-storage battery group 2 is in charged state
When, if in energy-storage battery group 2 when single battery higher there are electricity and need not temporarily charging, corresponding unit battery module 1
Middle switch S is disconnected and switch K is closed, and switch S is closed in remaining unit battery module 1 and switch K is disconnected.When needing for additional electrical
When source 9 is charged, switch S1 is closed in additional supply module 2 and switch S2 and switch S3 are disconnected.When additional supply 9 need not charge
When, switch S3 is closed and switch S1 and switch S2 disconnections in additional supply module 2.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
It should be understood that the above-mentioned description for preferred embodiment is more detailed, can not therefore be considered to this
The limitation of invention patent protection range, those skilled in the art under the inspiration of the present invention, are not departing from power of the present invention
Profit requires under protected ambit, can also make replacement or deformation, each fall within protection scope of the present invention, this hair
It is bright range is claimed to be determined by the appended claims.
Claims (6)
1. a kind of restructural equalizing circuit with additional supply, which is characterized in that including：Unit battery module, energy-storage battery
Group, additional supply module and load, each unit battery module energy-storage battery group in series, additional supply module and energy-storage battery
It is in parallel with load after group series connection.
2. the restructural equalizing circuit according to claim 1 with additional supply, which is characterized in that the single battery
Module, including：Switch S, switch K and single battery, switch S are in parallel with switch K after connecting with single battery.
3. the restructural equalizing circuit according to claim 2 with additional supply, which is characterized in that the additional supply
Module, including：Switch S1, switch S2, switch S3, an additional supply and a DC converter, switch S1 and additional supply
In parallel with switch S3 after series connection, the input terminal of DC converter is connected with additional supply, the output end and switch of DC converter
It is in parallel with switch S3 after S2 series connection.
4. the restructural equalizing circuit according to claim 3 with additional supply, which is characterized in that the additional supply
For the battery composition with the same or similar model of single battery in the energy-storage battery group.
5. the restructural equalizing circuit according to claim 3 with additional supply, which is characterized in that the DC converting
Additional supply voltage in the additional supply module can be converted to required voltage by device, be the load supplying.
6. the restructural equalizing circuit according to claim 3 with additional supply, which is characterized in that described restructural equal
Weighing apparatus circuit operating mode include：
When the energy-storage battery group is worked normally in discharge condition, switch S is closed and switch K in each unit battery module
It disconnects, switch S3 is closed in the additional supply module and switch S1 and switch S2 are disconnected；
When the electric quantity of single batteries in the unit battery module is relatively low and needs equilibrium, or breaking down must be out of service
When, it corresponds to switch S in the unit battery module and disconnects and switch K closures, when single battery total voltage out of service and institute
When stating that additional supply voltage is same or similar in additional supply module, switch S1 is closed in the additional supply module, switch S2
It is disconnected with switch S3；
It is described when additional supply voltage phase difference is larger in the total voltage of single battery out of service and the additional supply module
Switch S2 is closed in additional supply module, switch S1 and switch S3 disconnection, and DC converter is by institute in the additional supply module
It states additional supply voltage in additional supply module and is converted to single battery total voltage out of service；
When the energy-storage battery group is in charged state, if higher there are electricity in the unit battery module and be temporarily not required to
When the single battery to be charged, switch S is disconnected in the corresponding unit battery module and switch K is closed, remaining described monomer electricity
Switch S is closed in the module of pond and switch K is disconnected；
When additional supply charges in needing for the additional supply module, the additional supply module switch S1 is closed and switchs
S2 and switch S3 are disconnected, when that need not be that additional supply charges in the additional supply module, in the additional supply module
Switch S3 is closed and switch S1 and switch S2 are disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094834.1A CN108418263A (en) | 2018-01-31 | 2018-01-31 | A kind of restructural equalizing circuit with additional supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094834.1A CN108418263A (en) | 2018-01-31 | 2018-01-31 | A kind of restructural equalizing circuit with additional supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108418263A true CN108418263A (en) | 2018-08-17 |
Family
ID=63127274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810094834.1A Pending CN108418263A (en) | 2018-01-31 | 2018-01-31 | A kind of restructural equalizing circuit with additional supply |
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| CN (1) | CN108418263A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713744A (en) * | 2018-12-13 | 2019-05-03 | 南京航空航天大学 | A kind of serial lithium battery group equilibrium fault tolerable circuit structure and balanced fault-tolerance approach |
| CN110444824A (en) * | 2019-07-19 | 2019-11-12 | 许野平 | A kind of battery pack structure reconstruct device and method |
| CN110601296A (en) * | 2019-09-19 | 2019-12-20 | 江西恒动新能源有限公司 | Active equalization circuit of battery management system |
| CN113517747A (en) * | 2021-08-30 | 2021-10-19 | 阳光储能技术有限公司 | Battery cluster balanced energy storage system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648675Y (en) * | 2003-04-04 | 2004-10-13 | 京东方科技集团股份有限公司 | Battery with redundant cell unit |
| CN201303030Y (en) * | 2008-11-19 | 2009-09-02 | 中国电力科学研究院 | An easy-maintenance flow battery energy storage system |
| CN202651832U (en) * | 2012-05-29 | 2013-01-02 | 河南省电力公司安阳供电公司 | Vehicle battery pack |
| CN103548234A (en) * | 2011-05-25 | 2014-01-29 | Nec能源元器件株式会社 | Battery device |
| CN107221718A (en) * | 2017-05-17 | 2017-09-29 | 西安交通大学 | The equalizing circuit structure and control method of a kind of restructural |
-
2018
- 2018-01-31 CN CN201810094834.1A patent/CN108418263A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648675Y (en) * | 2003-04-04 | 2004-10-13 | 京东方科技集团股份有限公司 | Battery with redundant cell unit |
| CN201303030Y (en) * | 2008-11-19 | 2009-09-02 | 中国电力科学研究院 | An easy-maintenance flow battery energy storage system |
| CN103548234A (en) * | 2011-05-25 | 2014-01-29 | Nec能源元器件株式会社 | Battery device |
| CN202651832U (en) * | 2012-05-29 | 2013-01-02 | 河南省电力公司安阳供电公司 | Vehicle battery pack |
| CN107221718A (en) * | 2017-05-17 | 2017-09-29 | 西安交通大学 | The equalizing circuit structure and control method of a kind of restructural |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713744A (en) * | 2018-12-13 | 2019-05-03 | 南京航空航天大学 | A kind of serial lithium battery group equilibrium fault tolerable circuit structure and balanced fault-tolerance approach |
| CN110444824A (en) * | 2019-07-19 | 2019-11-12 | 许野平 | A kind of battery pack structure reconstruct device and method |
| CN110444824B (en) * | 2019-07-19 | 2022-10-21 | 许野平 | Battery pack structure reconstruction device and method |
| CN110601296A (en) * | 2019-09-19 | 2019-12-20 | 江西恒动新能源有限公司 | Active equalization circuit of battery management system |
| CN113517747A (en) * | 2021-08-30 | 2021-10-19 | 阳光储能技术有限公司 | Battery cluster balanced energy storage system and control method thereof |
| CN113517747B (en) * | 2021-08-30 | 2024-02-23 | 阳光储能技术有限公司 | Battery cluster balanced energy storage system and control method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180817 |
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| RJ01 | Rejection of invention patent application after publication |