CN106450524A - High current balancing ARM control system with lithium manganate batteries - Google Patents
High current balancing ARM control system with lithium manganate batteries Download PDFInfo
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- CN106450524A CN106450524A CN201610990936.2A CN201610990936A CN106450524A CN 106450524 A CN106450524 A CN 106450524A CN 201610990936 A CN201610990936 A CN 201610990936A CN 106450524 A CN106450524 A CN 106450524A
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- China
- Prior art keywords
- lithium manganate
- manganate battery
- contactor
- high current
- battery
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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
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- 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)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a high current balancing ARM control system with lithium manganate batteries. The high current balancing ARM control system with the lithium manganate batteries comprises at least two serially connected lithium manganate batteries, first contactors, second contactors, a high current discharging resistor, a lithium manganate battery voltage detecting module, an ARM controller and a protecting device, wherein the quantity of the first contactors and the second contactors is equal to the quantity of the lithium manganate batteries; the voltage of each lithium manganate battery is acquired by the ARM controller through the lithium manganate battery voltage detecting module; and when the balancing degree between the lithium manganate batteries is more than a preset threshold value, the lithium manganate battery at the maximal voltage is discharged through the high current discharging resistor according to a preset time. The system adopts the ARM as a main balancing controller, so that the control speed can be increased. A contactor matrix mode is adopted by the system and the high current discharging of the lithium manganate batteries is realized, so that the balancing reliability is increased and the high current discharging is realized. The system has the advantages of simple structure, convenience in operation, safety, reliability and good balancing effect.
Description
Technical field
The invention belongs to the balancing technique field of lithium battery group, equalize ARM particularly to a kind of lithium manganate battery high current
Control system.
Background technology
The development of fuel-engined vehicle causes the huge consumption of petroleum resources, the continuous intensification of global energy crisis, simultaneously plus
The acute harm of greenhouse effects and atmosphere pollution.Most countries, government and Automobile Enterprises are all it is well recognized that save in the world
Can reduce discharging is the developing direction of future automobile industry, and Development of EV will be the optimum method solving this difficult point.Electronic
It is low that automobile has a noise, 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 also promotes electric automobile positive.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 energy-storage travelling wave tube, particularly in pure electric automobile extensively application multi-string battery as power source.
Lithium manganate battery is with LiMn2O4As the positive level of battery, it is connected with other positive poles by aluminium foil, centre is polymer
Barrier film, it separates positive pole and negative pole, lithium ion can by and electronics can not pass through, the right is born by the battery that carbon forms
Pole, is connected with the negative pole of battery by Copper Foil.Battery be between the upper and lower ends battery electrolyte, battery by metal shell close envelope
Dress.Lithium manganate battery is superior due to its discharge performance, can extensively apply in dynamical system.
Because each monomer of lithium manganate battery group is all different individualities, in production technology, the factor such as production time is led
Send a telegraph pond performance indications and there is difference.Although with the continuous progress of technology, the difference before dispatching from the factory, between lithium manganate battery inside
Constantly reduce, but during using, faint inconsistency constantly can be amplified with use condition.Such inconsistency
Will be increasing with design load deviation for the capacity leading to whole group lithium manganate battery.In charging process, the little monomer of capacity is by head
First it is filled, lead to the battery of other capacity can not obtain enough capacity；In discharge process, the little monomer of capacity first by
Discharge into blanking voltage, whole group battery will stop electric discharge.The presence of such problem of inconsistency, causes lithium manganate battery group
The aspect such as active volume and service life is far away from cell, and increases difficulty battery being managed and controlling.
Practice have shown that, occur capacity significantly to reduce when the consistency problem of battery pack develops into Individual cells, the feelings such as internal resistance significantly improves
During condition, the performance of whole group battery can be in short time high progression, so that whole battery pack is scrapped.
In order to solve lithium manganate battery group problem of inconsistency, there has been proposed the balancing technique of lithium manganate battery.Equilibrium
The voltage to the effect that detecting lithium manganate battery group of management, the parameter such as electric current, these parameters are identified, analyze battery
Uniformity, discharged by the control device monomer high to energy body, so that the state of each monomer is reached unanimity.By having
The Balance route strategy of effect and equalizing circuit can improve the consistency problem of battery pack, can extend the life-span of battery pack, fall
The maintenance cost of low battery pack, makes the electric automobile that safe and efficient intelligence uses put it over.
Equalizing system general at present is to configure a discharge resistance to each lithium manganate battery, by checking each monomer
Voltage, the monomer higher to monomer discharged by oneself corresponding discharge resistance.When lithium manganate cell volume compares
When big, this discharge resistance discharge current would become hard to meet the requirement of fast uniform.If put corresponding for each lithium manganate battery
Electric resistor power becomes big, and, by the face of new challenge, existing using resistance, system seldom has high current in a balanced way for its volume and radiating
System in a balanced way.
Content of the invention
It is an object of the invention to provide a kind of lithium manganate battery high current equalizes ARM control system.
The present invention is realized in：A kind of lithium manganate battery high current equalizes ARM control system, including lithium manganate battery
Group, heavy-current discharge resistance, lithium manganate battery voltage detection module, ARM controller and protection device, wherein lithium manganate battery group
Including the lithium manganate battery of at least two series connection, all corresponding first contactor of each lithium manganate battery contacts with one second
Device；The positive pole of lithium manganate battery is connected to the first end of heavy-current discharge resistance, LiMn2O4 by its corresponding first contactor
The negative pole of battery is connected to the second end of heavy-current discharge resistance by its corresponding second contactor；The positive pole of lithium manganate battery
Can be connected with being energized with lithium manganate battery voltage detection module with negative pole；ARM controller includes CAN terminal and control end
Son, CAN terminal is connect with lithium manganate battery voltage detection module, the control end of control terminal and first contactor and second contactor
Son connects；ARM controller control the corresponding first contactor of lithium manganate battery and second contactor conducting when, lithium manganate battery with
Heavy-current discharge resistor coupled in parallel, synchronization only one of which lithium manganate battery and heavy-current discharge resistor coupled in parallel；Protection device bag
Include D.C. contactor and resettable fuse, D.C. contactor and resettable fuse are connected to LiMn2O4 electricity after being cascaded
The negative pole of pond group.
Described lithium manganate battery is monomer lithium manganate battery or by multiple basic mangaic acids for basic lithium manganate battery unit
The lithium manganate battery brick that lithium cells compose in parallel.
The lithium manganate battery high current of the present invention equalizes the charge and discharge balancing dress that ARM control system includes lithium manganate battery
Put, so that lithium manganate battery is effectively managed in charge and discharge process and equalize, to improve the efficiency of lithium manganate battery and to make
With the life-span, and reduce the maintenance cost of lithium manganate battery.The system adopts ARM as primary equalization controller, improves and controls speed
Degree.The system adopts contactor matrix-style, realizes the heavy-current discharge to lithium manganate battery, to improve reliability in a balanced way,
And realize heavy-current discharge.The system structure is simple, and easy to operate, safe and reliable, portfolio effect is good.
Brief description
Fig. 1 is the structural representation that in the embodiment of the present invention, lithium manganate battery high current equalizes ARM control system.
Fig. 2 is the equilibrium that in the embodiment of the present invention, lithium manganate battery high current equalizes in ARM control system charge and discharge process
Control method flow chart.
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 are capable of 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 general 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 manganate battery high current equalizes ARM control system, including lithium manganate battery group, high current
Discharge resistance R（Carry the high-power resistance of radiator）, lithium manganate battery voltage detection module, ARM controller and protection device,
Wherein lithium manganate battery group includes the lithium manganate battery of at least two series connection, all corresponding one first contact of each lithium manganate battery
Device and a second contactor；The positive pole of lithium manganate battery is connected to heavy-current discharge resistance by its corresponding first contactor
The first end of R, the negative pole of lithium manganate battery is connected to the second of heavy-current discharge resistance R by its corresponding second contactor
End；The positive pole of lithium manganate battery can be connected with lithium manganate battery voltage detection module with negative pole with being energized；ARM controller bag
Include CAN terminal and control terminal, CAN terminal is connect with lithium manganate battery voltage detection module, control terminal and first contactor and
The control terminal of second contactor connects；ARM controller controls the corresponding first contactor of lithium manganate battery and second contactor
During conducting, lithium manganate battery is in parallel with heavy-current discharge resistance R, synchronization only one of which lithium manganate battery and heavy-current discharge
Resistance R is in parallel；Protection device includes D.C. contactor and resettable fuse, and D.C. contactor and resettable fuse are connected on
It is connected to the negative pole of lithium manganate battery group together afterwards.
Described lithium manganate battery is monomer lithium manganate battery for basic lithium manganate battery unit.
The negative pole of equilibrium object lithium manganate battery 1 is connected with the positive pole of Jun Heng object lithium manganate battery 2, described equilibrium object
The negative pole of lithium manganate battery 2 is connected with the positive pole of Jun Heng object lithium manganate battery 3, is sequentially connected in series each equilibrium object LiMn2O4 electricity
Pond, the positive pole of negative pole and Jun Heng object lithium manganate battery N until equalizing object lithium manganate battery N-1 connects, all LiMn2O4s
Battery is sequentially connected in series lithium manganate battery group, and in described lithium manganate battery group, described equilibrium object lithium manganate battery 1 is just
The positive pole of extremely described lithium manganate battery group, the negative pole of described equilibrium object lithium manganate battery N is described lithium manganate battery group
Negative pole.
The positive pole of each described equilibrium object lithium manganate battery is by corresponding described first contactor and described high current
The first end of discharge resistance R connects, and the negative pole of each described equilibrium object lithium manganate battery passes through corresponding described second contact
Device is connected with second end of described heavy-current discharge resistance R, the control terminal K of described first contactor and described second contactor
It is connected with the control terminal of described ARM controller after parallel connection.
The positive pole of the D1 terminal of each described first contactor and described Jun Heng object lithium manganate battery connects, D2 terminal with
The first end of described heavy-current discharge resistance R connects, and control terminal K is connected with ARM control terminal.
The negative pole of the D1 terminal of each described second contactor and described Jun Heng object lithium manganate battery connects, D2 terminal with
Second end of described heavy-current discharge resistance R connects, and control terminal K is connected with ARM control terminal.
Described lithium manganate battery voltage detection module can be energized to ground with the positive pole of described lithium manganate battery and negative pole
It is connected, for detecting the voltage of each lithium manganate battery；Linked with described ARM controller by CAN, to ARM control
Device processed sends detected voltage signal.
As shown in Fig. 2 the lithium manganate battery high current equilibrium ARM control system of the present embodiment is run according to following steps：
A. ARM controller is communicated with lithium manganate battery voltage detection module, obtains the voltage of each lithium manganate battery.
B. ARM controller, according to the N number of lithium manganate battery voltage obtaining, finds out the maximum lithium manganate battery of voltage, wherein
N is more than or equal to 2.
C. ARM controller obtains the average voltage of all lithium manganate batteries.
D. when the maximum voltage of lithium manganate battery of voltage is set more than one with the average voltage deviations of all lithium manganate batteries
Determine to jump into step e during threshold values, otherwise return to step a.
E. ARM controller is by the maximum corresponding first contactor of lithium manganate battery of control voltage and second contactor
Make the maximum lithium manganate battery of voltage and heavy-current discharge resistor coupled in parallel, lithium manganate battery is discharged.
F. wait the time T of setting, ARM controller disconnects all contactless contactors by control terminal, program returns step
Rapid a.
Claims (1)
1. a kind of lithium manganate battery high current equilibrium ARM control system is it is characterised in that this lithium manganate battery high current equalizes ARM
Control system includes lithium manganate battery group, heavy-current discharge resistance, lithium manganate battery voltage detection module, ARM controller and guarantor
Protection unit, wherein lithium manganate battery group include the lithium manganate battery of at least two series connection, and each lithium manganate battery all corresponds to one
First contactor and a second contactor；The positive pole of lithium manganate battery is connected to high current by its corresponding first contactor
The first end of discharge resistance, the negative pole of lithium manganate battery is connected to heavy-current discharge resistance by its corresponding second contactor
Second end；The positive pole of lithium manganate battery can be connected with lithium manganate battery voltage detection module with negative pole with being energized；ARM controls
Device includes CAN terminal and control terminal, and CAN terminal is connect with lithium manganate battery voltage detection module, and control terminal contacts with first
The control terminal of device and second contactor connects；ARM controller controls the corresponding first contactor of lithium manganate battery and second to connect
During tentaculum conducting, lithium manganate battery and heavy-current discharge resistor coupled in parallel, synchronization only one of which lithium manganate battery and high current
Discharge resistance is in parallel；Protection device includes D.C. contactor and resettable fuse, D.C. contactor and resettable fuse string
It is connected to the negative pole of lithium manganate battery group after being linked togather；
Described lithium manganate battery is monomer lithium manganate battery or by multiple basic LiMn2O4s electricity for basic lithium manganate battery unit
The lithium manganate battery brick that pool unit composes in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990936.2A CN106450524A (en) | 2016-11-11 | 2016-11-11 | High current balancing ARM control system with lithium manganate batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990936.2A CN106450524A (en) | 2016-11-11 | 2016-11-11 | High current balancing ARM control system with lithium manganate batteries |
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| Publication Number | Publication Date |
|---|---|
| CN106450524A true CN106450524A (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610990936.2A Pending CN106450524A (en) | 2016-11-11 | 2016-11-11 | High current balancing ARM control system with lithium manganate batteries |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607708A (en) * | 2003-10-13 | 2005-04-20 | 上海燃料电池汽车动力系统有限公司 | Equalizing circuit for lithium ion power accumulator |
| CN102064568A (en) * | 2010-10-11 | 2011-05-18 | 中国科学院青岛生物能源与过程研究所 | Active equalizing and protecting system of stackable series-connected lithium battery |
| CN105871028A (en) * | 2016-05-22 | 2016-08-17 | 桂林理工大学 | High-current equalizing control system for LiMn2O4 batteries |
-
2016
- 2016-11-11 CN CN201610990936.2A patent/CN106450524A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607708A (en) * | 2003-10-13 | 2005-04-20 | 上海燃料电池汽车动力系统有限公司 | Equalizing circuit for lithium ion power accumulator |
| CN102064568A (en) * | 2010-10-11 | 2011-05-18 | 中国科学院青岛生物能源与过程研究所 | Active equalizing and protecting system of stackable series-connected lithium battery |
| CN105871028A (en) * | 2016-05-22 | 2016-08-17 | 桂林理工大学 | High-current equalizing control system for LiMn2O4 batteries |
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Application publication date: 20170222 |