CN106505671A - Lithium iron battery high current equilibrium ARM control systems - Google Patents
Lithium iron battery high current equilibrium ARM control systems Download PDFInfo
- Publication number
- CN106505671A CN106505671A CN201610990938.1A CN201610990938A CN106505671A CN 106505671 A CN106505671 A CN 106505671A CN 201610990938 A CN201610990938 A CN 201610990938A CN 106505671 A CN106505671 A CN 106505671A
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- China
- Prior art keywords
- lithium iron
- iron battery
- contactor
- heavy
- battery
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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
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
-
- 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
-
- 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)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of lithium iron battery high current equilibrium ARM control systems.The lithium iron battery high current equilibrium ARM control systems include the lithium iron battery of at least two series connection first contactor equal with the lithium iron battery quantity and second contactor, heavy-current discharge resistance, lithium iron battery voltage detection module, ARM controller and protection device.ARM controller obtains each lithium iron battery voltage by lithium iron battery voltage detection module, when the equilibrium degree between lithium iron battery is more than threshold values is set, the maximum lithium iron battery of voltage is passed through heavy-current discharge conductive discharge according to the time for setting.The system improves control speed and stability using ARM as primary equalization controller.The system realizes the heavy-current discharge to lithium iron battery using catalyst matrix-style, to improve reliability in a balanced way, and realizes heavy-current discharge.The system simple structure, easy to operate, safe and reliable, portfolio effect is good.
Description
Technical field
The invention belongs to the balancing technique field of lithium battery group, more particularly to a kind of lithium iron battery high current equilibrium ARM controls
System processed.
Background technology
The development of fuel-engined vehicle causes the huge consumption of petroleum resources, the continuous intensification of global energy crisis, while adding
The acute harm of greenhouse effect and atmospheric pollution.Most countries, government and Automobile Enterprises are all it is well recognized that section in the world
It is the developing direction of future automobile industry that can reduce discharging, and Development of EV will be the optimum method for solving this difficult point.Electronic
Automobile has noise low, emission-free discharge, environmental friendliness, and the thermal efficiency is high, discharges low, recoverable, improves energy resource structure etc.
Advantage.Each automobile production enterprise is just actively researching and developing electric automobile, and Chinese Government is also actively promoting electric automobile.Electric automobile root
Pure electric automobile, hybrid-electric car and FC-EV can be roughly divided into according to power source.These electric automobiles one
As can configure battery as in energy-storage travelling wave tube, particularly pure electric automobile extensively application multi-string battery as power source.
Positive level of the lithium iron battery using LiFePO4 as battery, is connected with other positive poles by aluminium foil, centre be polymer every
Film, it separate positive pole and negative pole, lithium ion can by and electronics can not pass through, the battery cathode that the right is made up of carbon,
It is connected with the negative pole of battery by Copper Foil.It is the electrolyte of battery between the upper and lower side of battery, battery is by metal shell closing encapsulation.
Lithium iron battery is superior due to its discharge performance, extensively can apply in dynamical system.
As each monomer of lithium iron battery group is all different individualities, cause in factors such as production technology, production times
There is difference in battery performance index.Although with the continuous progress of technology, before dispatching from the factory, the difference between lithium iron battery inside is continuous
Reduce, but faint discordance during use can constantly be amplified with use condition.Such discordance will be led
Cause the capacity of whole group lithium iron battery increasing with design load deviation.In charging process, the little monomer of capacity will be filled first
Full, cause the battery of other capacity obtain enough capacity；In discharge process, the little monomer of capacity is discharged into first
Blanking voltage, whole group battery will stop electric discharge.The presence of such problem of inconsistency, causes the active volume of lithium iron battery group
With aspects such as service lifes far away from cell, and increase the difficulty for battery being managed and being controlled.Practice have shown that,
Significantly reduce when the consistency problem of set of cells develops into Individual cells generation capacity, when internal resistance is significantly improved, whole group
The performance of battery can be in short time high progression, so that whole set of cells is scrapped.
In order to solve lithium iron battery group problem of inconsistency, there has been proposed the balancing technique of lithium iron battery.Balanced management
The voltage for the effect that detecting lithium iron battery group, the parameter such as electric current is identified to these parameters, analyzes the consistent of battery
Property, discharged by the control device monomer high to energy body, make the state of each monomer reach unanimity.By effectively
Weighing apparatus control strategy and equalizing circuit can improve the consistency problem of set of cells, can extend the life-span of set of cells, reduce battery
The maintenance cost of group, the electric automobile for using safe and efficient intelligence put it over.
Equalizing system general at present is to configure a discharge resistance to each lithium iron battery, by checking each monomer
Voltage, the monomer higher to monomer are discharged by oneself corresponding discharge resistance.When lithium iron battery Capacity Ratio is larger,
The discharge resistance discharge current would become hard to the requirement for meeting fast uniform.If by corresponding for each lithium iron battery discharge resistance work(
Rate becomes big, and its volume and radiating will face new challenge, and existing using resistance, system seldom has the high current to be in a balanced way in a balanced way
System.
Content of the invention
It is an object of the invention to provide a kind of lithium iron battery high current equilibrium ARM control systems.
The present invention is realized in：A kind of lithium iron battery high current equilibrium ARM control systems, including lithium iron battery group,
Heavy-current discharge resistance, lithium iron battery voltage detection module, ARM controller and protection device, wherein lithium iron battery group include to
The lithium iron battery of few two series connection, each lithium iron battery correspond to a first contactor and a second contactor；Ferrum lithium electricity
The positive pole in pond is connected to the first end of heavy-current discharge resistance by its corresponding first contactor, and the negative pole of lithium iron battery passes through
Its corresponding second contactor is connected to the second end of heavy-current discharge resistance；The positive pole and negative pole of lithium iron battery and lithium iron battery
Voltage detection module can be connected in which be powered；ARM controller includes CAN terminals and control terminal, CAN terminals and lithium iron battery
Voltage detection module connects, and control terminal is connected with the control terminal of first contactor and second contactor；ARM controller controls ferrum
When the corresponding first contactor of lithium battery and second contactor are turned on, lithium iron battery and heavy-current discharge resistor coupled in parallel, with for the moment
Carve only one of which lithium iron battery and heavy-current discharge resistor coupled in parallel；Protection device includes D.C. contactor and resettable fuse,
D.C. contactor and resettable fuse are connected to the negative pole of lithium iron battery group after being cascaded.
The lithium iron battery is monomer lithium iron battery or by multiple basic lithium iron battery lists for basic lithium iron battery unit
The lithium iron battery brick that unit composes in parallel.
The lithium iron battery high current equilibrium ARM control systems of the present invention include the charging and discharging balance device of lithium iron battery, make
Lithium iron battery is effectively managed in charge and discharge process and balanced, to improve the efficiency and service life of lithium iron battery, and
Reduce the maintenance cost of lithium iron battery.The system improves control speed and stability using ARM as primary equalization controller.
The system realizes the heavy-current discharge to lithium iron battery using catalyst matrix-style, to improve reliability in a balanced way, and realizes
Heavy-current discharge.The system simple structure, easy to operate, safe and reliable, portfolio effect is good.
Description of the drawings
Fig. 1 is the structural representation of lithium iron battery high current equilibrium ARM control systems in the embodiment of the present invention.
Fig. 2 is the balanced control in the embodiment of the present invention in lithium iron battery high current equilibrium ARM control system charge and discharge process
Method flow diagram processed.
Specific embodiment
Embodiment：
The present invention is further described below in conjunction with the accompanying drawings.
Hereinafter describe for disclosing the present invention so that those skilled in the art can realize the present invention.Excellent in below describing
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.Define in the following description
The ultimate principle of the present invention can apply to other embodiments, deformation program, improvement project, equivalent and not do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
As shown in figure 1, a kind of lithium iron battery high current equilibrium ARM control systems, including lithium iron battery group, heavy-current discharge
Resistance R（Carry the high-power resistance of radiator）, lithium iron battery voltage detection module, ARM controller and protection device, wherein ferrum
Lithium battery group includes that the lithium iron battery of at least two series connection, each lithium iron battery correspond to a first contactor and one second
Catalyst；The positive pole of lithium iron battery is connected to the first end of heavy-current discharge resistance R, ferrum lithium by its corresponding first contactor
The negative pole of battery is connected to second end of heavy-current discharge resistance R by its corresponding second contactor；The positive pole of lithium iron battery
Can be connected with being powered with lithium iron battery voltage detection module with negative pole；ARM controller includes CAN terminals and control terminal,
CAN terminals are connect with lithium iron battery voltage detection module, and control terminal is connected with the control terminal of first contactor and second contactor
Connect；When the corresponding first contactor of ARM controller control lithium iron battery and second contactor are turned on, lithium iron battery is put with high current
Resistance R is in parallel, and synchronization only one of which lithium iron battery is in parallel with heavy-current discharge resistance R；Protection device includes that direct current connects
Tentaculum and resettable fuse, D.C. contactor and resettable fuse are connected to the negative of lithium iron battery group after being cascaded
Pole.
The lithium iron battery is monomer lithium iron battery for basic lithium iron battery unit.
The negative pole of balanced object lithium iron battery 1 is connected with the positive pole of balanced object lithium iron battery 2, the balanced object ferrum lithium
The negative pole of battery 2 is connected with the positive pole of balanced object lithium iron battery 3, is sequentially connected in series each balanced object lithium iron battery, Zhi Daojun
The negative pole of weighing apparatus object lithium iron battery N-1 is connected with the positive pole of balanced object lithium iron battery N, and all lithium iron batteries are sequentially connected in series
Lithium iron battery group, in the lithium iron battery group, the just extremely described lithium iron battery group of the balanced object lithium iron battery 1 is just
Pole, the negative pole of the balanced object lithium iron battery N is the negative pole of the lithium iron battery group.
The positive pole of each balanced object lithium iron battery is put by the corresponding first contactor and the high current
The first end connection of resistance R, the negative pole of each balanced object lithium iron battery by the corresponding second contactor and
The control terminal K of the second end connection of the heavy-current discharge resistance R, the first contactor and the second contactor is in parallel
It is connected with the control terminal of the ARM controller afterwards.
The positive pole of the D1 terminals of each first contactor and the balanced object lithium iron battery connects, D2 terminals and institute
The first end connection of heavy-current discharge resistance R is stated, control terminal K is connected with ARM control terminals.
The negative pole of the D1 terminals of each second contactor and the balanced object lithium iron battery connects, D2 terminals and institute
The second end connection of heavy-current discharge resistance R is stated, control terminal K is connected with ARM control terminals.
Described lithium iron battery voltage detection module can be connected with the positive pole and negative pole of described lithium iron battery in which be powered
Connect, for detecting the voltage of each lithium iron battery；Linked with described ARM controller by CAN, sent out to ARM controller
Send detected voltage signal.
As shown in Fig. 2 the lithium iron battery high current equilibrium ARM control systems of the present embodiment are run according to following steps：
A. ARM controller is communicated with lithium iron battery voltage detection module, obtains the voltage of each lithium iron battery.
B. ARM controller finds out the maximum lithium iron battery of voltage according to the N number of lithium iron battery voltage for obtaining, and wherein N is big
In equal to 2.
C. ARM controller obtains the average voltage of all lithium iron batteries.
D. when the voltage of the maximum lithium iron battery of voltage and the average voltage deviations of all lithium iron batteries set valve more than one
Step e is jumped into during value, otherwise returns to step a.
E. ARM controller is made by the corresponding first contactor of the maximum lithium iron battery of control voltage and second contactor
The maximum lithium iron battery of voltage is in parallel with heavy-current discharge resistance R, and lithium iron battery is discharged.
F. the time T of setting, ARM controller is waited to disconnect all contactless contactors by control terminal, program returns step
Rapid a.
Claims (1)
1. a kind of lithium iron battery high current equilibrium ARM control systems, it is characterised in that lithium iron battery high current equilibrium ARM is controlled
System includes lithium iron battery group, heavy-current discharge resistance, lithium iron battery voltage detection module, ARM controller and protection device, its
Middle lithium iron battery group includes that the lithium iron battery of at least two series connection, each lithium iron battery correspond to a first contactor and one
Second contactor；The positive pole of lithium iron battery is connected to the first end of heavy-current discharge resistance by its corresponding first contactor,
The negative pole of lithium iron battery is connected to the second end of heavy-current discharge resistance by its corresponding second contactor；Lithium iron battery is just
Pole can be connected with lithium iron battery voltage detection module with negative pole in which be powered；ARM controller includes CAN terminals and control end
Son, CAN terminals are connect with lithium iron battery voltage detection module, the control terminal of control terminal and first contactor and second contactor
Connection；When the ARM controller corresponding first contactor of control lithium iron battery and second contactor are turned on, lithium iron battery and high current
Discharge resistance parallel connection, synchronization only one of which lithium iron battery and heavy-current discharge resistor coupled in parallel；Protection device includes that direct current connects
Tentaculum and resettable fuse, D.C. contactor and resettable fuse are connected to the negative of lithium iron battery group after being cascaded
Pole；
The lithium iron battery for basic lithium iron battery unit be monomer lithium iron battery or by multiple basic lithium iron battery units simultaneously
Joint group into lithium iron battery brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990938.1A CN106505671A (en) | 2016-11-11 | 2016-11-11 | Lithium iron battery high current equilibrium ARM control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990938.1A CN106505671A (en) | 2016-11-11 | 2016-11-11 | Lithium iron battery high current equilibrium ARM control systems |
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| Publication Number | Publication Date |
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| CN106505671A true CN106505671A (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610990938.1A Pending CN106505671A (en) | 2016-11-11 | 2016-11-11 | Lithium iron battery high current equilibrium ARM control systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116545067A (en) * | 2023-05-15 | 2023-08-04 | 江苏阿诗特能源科技有限公司 | Equalization circuit and energy storage system of battery pack |
| RU224086U1 (en) * | 2023-12-29 | 2024-03-15 | Общество с ограниченной ответственностью "ЭвоКарго" | Module for fast charging of the traction battery of a highly automated unmanned electric vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811533A (en) * | 2016-05-22 | 2016-07-27 | 桂林理工大学 | Large current balancing control system of lithium ferrous battery |
-
2016
- 2016-11-11 CN CN201610990938.1A patent/CN106505671A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811533A (en) * | 2016-05-22 | 2016-07-27 | 桂林理工大学 | Large current balancing control system of lithium ferrous battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116545067A (en) * | 2023-05-15 | 2023-08-04 | 江苏阿诗特能源科技有限公司 | Equalization circuit and energy storage system of battery pack |
| CN116545067B (en) * | 2023-05-15 | 2024-06-25 | 江苏阿诗特能源科技股份有限公司 | Equalization circuit and energy storage system of battery pack |
| RU224086U1 (en) * | 2023-12-29 | 2024-03-15 | Общество с ограниченной ответственностью "ЭвоКарго" | Module for fast charging of the traction battery of a highly automated unmanned electric vehicle |
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Application publication date: 20170315 |