CN107819337A - The active voltage balancing system of battery bag - Google Patents
The active voltage balancing system of battery bag Download PDFInfo
- Publication number
- CN107819337A CN107819337A CN201610837471.7A CN201610837471A CN107819337A CN 107819337 A CN107819337 A CN 107819337A CN 201610837471 A CN201610837471 A CN 201610837471A CN 107819337 A CN107819337 A CN 107819337A
- Authority
- CN
- China
- Prior art keywords
- transformer
- voltage
- battery
- battery bag
- electricity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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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- 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
- H01M10/42—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
- H01M10/425—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 present invention relates to the active voltage balancing system of battery bag, belong in field of power electronics, a kind of application technology in battery bag energy management.It is the electrical isolation using transformer, electricity is obtained from the total voltage of battery bag.And electricity is transferred to the low battery of electricity.Utilize the series winding technology of transformer so that power drive can realize energy transfer and control by coming.When the transformer of series winding is completely the same, transformer is also to be consistent to the output voltage of single battery, and equal to the average voltage of all monomers.The final voltage for causing all batteries in battery bag is all consistent, and has reached balanced purpose.As long as keeping a fixed pulsewidth, the output of each transformer can change with the change of total voltage, and be held in the average voltage level of all monomers.Which forms a kind of equilibrium of dynamic electric voltage.Illustrate 1 pulse driver；2 balance modules；3 battery packs.
Description
Technical field
This patent is a kind of application technology in battery bag energy management in field of power electronics.It is by multigroup transformer
Composition, the application technology of corresponding cell charging.It is adapted in various battery inclusions, the inconsistent equilibrium of monomer voltage
Technology.
Background technology
In the application of battery, many cells are usually concatenated use by we.And add battery management
System so that cell will not damage because of overcharging with over-discharge.But due to the inconsistency of cell,
So that whole energy of battery cannot play in.The serious service life for also affecting battery.It can particularly fill
The secondary cell of electricity.When in battery bag, there are a batteries in electric discharge, electricity is more rapidly discharged than other batteries.At this time
Battery bag will stop discharging.If at this time we supplement a part of electricity to this batteries, make the monomer electricity in battery bag
The electricity in pond is consistent, and just can also continue to put the electricity more gone out.When charging, have that a batteries are at full charge quickly, this
When battery management system can charge closing.Protection battery will not damage.But so will result in other batteries does not all have
It is fully charged, reduce the electricity of battery bag.At this time if discharging a part of electricity in this batteries, filled to other batteries more
A part of electricity, so that it may so that the electricity of the monomer in whole battery bag is consistent, it is possible to be filled with more electricity to battery bag.
This function we be referred to as cell balancing.
The content of the invention
This patent is the electrical isolation using transformer, and electricity is obtained from the total voltage of battery bag.And electricity is turned
Move the battery low to electricity.Utilize the series winding technology of transformer so that power drive can realize energy transfer by coming
And control.When the transformer that we contact is completely the same, transformer is also to be consistent to the output voltage of single battery.
And it is equal to the average voltage of all monomers.At this moment the battery in battery bag higher than average voltage will release electricity, and low
Electricity is just obtained in the battery of average voltage.The final voltage for causing all batteries in battery bag is all consistent, and is reached
Balanced purpose.And if a fixed pulsewidth is kept, the output of each transformer can become with the change of total voltage
Change.Material is thus formed a kind of balanced way of dynamic electric voltage.
Brief description of the drawings
Fig. 1 is the electrical schematics of embodiment
1- pulse drivers；2- balance modules；3- battery packs.
Embodiment
The method that this patent is implemented is to obtain electricity from the total voltage of battery bag, using the series winding technology of transformer, is made
Energy transfer and control can be realized by coming by obtaining power drive.Single battery is carried out by balance module again balanced.
If Pulse Width Control keeps a fixed pulsewidth, equalizing voltage just changes with the change of total voltage.Here it is this patent
Embodiment.
Claims (5)
1. the series winding of a transformer is applied in equalizaing charge.
2. series winding and transformer in parallel output is set to exist only with no-load voltage ratio and the related homogeneity of pulsewidth using the output of transformer
On same magnitude of voltage.
3. utilize the balancing technique of the transformer in set of pulses circuit drives series circuit.
4. using transformer in fixed pulse, output voltage, the input relation directly proportional to the no-load voltage ratio of transformer.To realize
The balancing technique of battery bag under different voltages.
5. charging technique of the switch transformer without pulse-width adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837471.7A CN107819337A (en) | 2016-09-14 | 2016-09-14 | The active voltage balancing system of battery bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837471.7A CN107819337A (en) | 2016-09-14 | 2016-09-14 | The active voltage balancing system of battery bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107819337A true CN107819337A (en) | 2018-03-20 |
Family
ID=61601527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610837471.7A Pending CN107819337A (en) | 2016-09-14 | 2016-09-14 | The active voltage balancing system of battery bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107819337A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420130A (en) * | 2007-10-26 | 2009-04-29 | 张启厚 | Series connection batteries automatic equalization regulating method and device |
| CN101467328A (en) * | 2006-06-15 | 2009-06-24 | Sk能源株式会社 | Charge equalization apparatus |
| CN101764421A (en) * | 2010-01-15 | 2010-06-30 | 中国科学院电工研究所 | Equalizing equipment for battery units of electric automobile |
-
2016
- 2016-09-14 CN CN201610837471.7A patent/CN107819337A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467328A (en) * | 2006-06-15 | 2009-06-24 | Sk能源株式会社 | Charge equalization apparatus |
| CN101420130A (en) * | 2007-10-26 | 2009-04-29 | 张启厚 | Series connection batteries automatic equalization regulating method and device |
| CN101764421A (en) * | 2010-01-15 | 2010-06-30 | 中国科学院电工研究所 | Equalizing equipment for battery units of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180320 |
|
| WD01 | Invention patent application deemed withdrawn after publication |