CN105871027A - High-current equalizing control system for lead acid batteries - Google Patents
High-current equalizing control system for lead acid batteries Download PDFInfo
- Publication number
- CN105871027A CN105871027A CN201610337669.9A CN201610337669A CN105871027A CN 105871027 A CN105871027 A CN 105871027A CN 201610337669 A CN201610337669 A CN 201610337669A CN 105871027 A CN105871027 A CN 105871027A
- Authority
- CN
- China
- Prior art keywords
- lead
- acid battery
- contactor
- lead acid
- current discharge
- 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
- 239000002253 acid Substances 0.000 title claims abstract description 125
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000000178 monomer Substances 0.000 claims description 11
- 239000011449 brick Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical group [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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
- 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
-
- H02J7/0026—
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- 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 invention discloses a high-current equalizing control system for lead acid batteries. The high-current equalizing control system for the lead acid batteries comprises at least two lead acid batteries connected in series, first contactors, second contactors, a high-current discharge resistor, a lead acid battery voltage detection module, a single-chip microcomputer controller and a protection device, wherein the quantity of the first contactors and the quantity of the second contactors are equal to that of the lead acid batteries; the single-chip microcomputer controller acquires voltage of each lead acid battery through the lead acid battery voltage detection module, and when the equalization degree of the lead acid batteries is higher than a set threshold value, the lead acid battery with the highest voltage discharges through the high-current discharge resistor according to set time. A single-chip microcomputer is taken as a main equalization controller, and the system cost is reduced; high-current discharge of the lead acid batteries is realized in a contactor matrix manner, so that the equalization reliability is improved, high-current discharge is realized, and the system is simple to operate, safe, reliable and good in equalization effect.
Description
Technical field
The invention belongs to the balancing technique field of battery pack, particularly to a kind of lead-acid battery big current balance control system.
Background technology
The development of fuel-engined vehicle causes the continuous intensification of global energy crisis, the continuous minimizing of petroleum resources, exacerbates temperature simultaneously and rises and the harm of atmosphere pollution.Most countries government and car industry are all it is well recognized that energy-saving and emission-reduction are the directions of future automobile industry development in the world, and Development of EV will be the optimum method solving this difficult point.It is low that electric automobile has noise, emission-free discharge, environmental friendliness, and the thermal efficiency is high, discharges low, and recoverable improves the advantages such as energy resource structure.Each automobile production enterprise the most actively researches and develops electric automobile, and Chinese Government is also actively promoting electric automobile.Electric automobile can be roughly divided into pure electric automobile, hybrid-electric car and FC-EV according to power source.These electric automobiles typically can configure battery as energy-storage travelling wave tube, particularly in pure electric automobile extensively application multi-string battery as power source.
Lead-acid battery is that a kind of electrode is mainly made up of lead and oxide thereof, and electrolyte is the battery of sulfuric acid solution.Under lead-acid battery state-of-charge, positive pole is mainly composed of brown lead oxide, and negative pole is mainly composed of lead；Under discharge condition, the main component of both positive and negative polarity is lead sulfate.
Owing to each monomer of lead-acid battery group is all different individuality, in production technology, the factor such as production time causes battery performance index to there is difference.Although along with the continuous progress of technology, before dispatching from the factory, the difference between lead-acid battery inside constantly reduces, but during using, faint inconsistency constantly can be amplified along with use condition.Such inconsistency is by increasing with design load deviation for the capacity causing whole group of lead-acid battery.In charging process, first the monomer that capacity is little will be filled, and cause the battery of other capacity can not obtain enough capacity；In discharge process, first the monomer that capacity is little is discharged into blanking voltage, and stopping is discharged by whole Battery pack.The existence of such problem of inconsistency, active volume and service life of causing lead-acid battery group etc., aspect was far away from cell, and increased the difficulty being managed battery and controlling.Practice have shown that, significantly reduce when the consistency problem of battery pack develops into Individual cells generation capacity, when internal resistance such as significantly improves at the situation, the performance of whole Battery pack can be at short time high progression, so that whole battery pack is scrapped.
In order to solve lead-acid battery group problem of inconsistency, there has been proposed the balancing technique of lead-acid battery.The voltage to the effect that detecting lead-acid battery group of balanced management, the parameter such as electric current, these parameters are identified, analyze battery with two side terminals, by controlling device, the monomer of energy height is discharged, make the state of each monomer reach unanimity.Can be improved the consistency problem of battery pack by effective Balance route strategy and equalizing circuit, it is possible to extend the life-span of battery pack, reduce the maintenance cost of battery pack, the electric automobile making safe and efficient intelligence use puts it over.
The most general equalization methods is that each lead-acid battery is configured a discharge resistance, by checking the voltage of each monomer, is discharged the monomer that monomer is higher by the discharge resistance of oneself correspondence.When lead-acid battery capacity is bigger, this discharge resistance discharge current would become hard to meet the requirement of fast uniform.If discharge resistance power corresponding for each lead-acid battery is become big, its volume and heat radiation are by the face of new challenge, the method that the method for existing employing resistance equilibrium seldom has big current balance.
Summary of the invention
It is an object of the invention to provide a kind of lead-acid battery big current balance control system.
The present invention is achieved in that a kind of lead-acid battery big current balance control system; including lead-acid battery group, heavy-current discharge resistance, lead-acid battery voltage detection module, singlechip controller and protection device; wherein lead-acid battery group includes at least two lead-acid batteries connected, all corresponding first contactor of the most each lead-acid battery and second contactor；The positive pole of lead-acid battery is connected to heavy-current discharge resistance the first end by the first contactor of its correspondence, and the negative pole of lead-acid battery is connected to heavy-current discharge resistance the second end by the second contactor of its correspondence；Lead-acid battery positive pole can be connected with lead-acid battery voltage detection module with negative pole with being energized；Singlechip controller includes CAN terminal and control terminal, CAN terminal is connected with lead-acid battery voltage detection module, the control terminal of control terminal and the first contactor and the second contactor connects, when singlechip controller controls the first contactor corresponding to lead-acid battery and the conducting of the second contactor, lead-acid battery and heavy-current discharge resistor coupled in parallel, synchronization only one of which lead-acid battery and heavy-current discharge resistor coupled in parallel；Protection device includes that D.C. contactor and resettable fuse, D.C. contactor and resettable fuse are cascaded and is followed by the negative pole of lead-acid battery group.
Described lead-acid battery is basic lead-acid battery cells i.e. monomer lead-acid battery or the lead-acid battery brick composed in parallel by multiple basic lead-acid battery cells.
The lead-acid battery big current balance control system of the present invention includes the charging and discharging balance device of lead-acid battery, Acid Battery System is made effectively to be managed in charge and discharge process and equalize, to improve efficiency and the service life of Acid Battery System, to reduce the maintenance cost of Acid Battery System；The present invention uses single-chip microcomputer as primary equalization controller, reduces the cost of system, and uses contactor matrix-style, it is achieved the heavy-current discharge to lead-acid battery, to improve the reliability of equilibrium, and realizes heavy-current discharge；Native system is simple to operate, safe and reliable, and portfolio effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of lead-acid battery big current balance control system in the embodiment of the present invention.
Fig. 2 is the balance control method flow chart in the embodiment of the present invention in lead-acid battery big current balance control system charge and discharge process.
Detailed description of the invention
Embodiment:
The present invention is further described below in conjunction with the accompanying drawings.
Hereinafter describe and be used for disclosing the present invention so that those skilled in the art are capable of the present invention.Preferred embodiment in below describing is only used as citing, it may occur to persons skilled in the art that other obvious modification.The general principle of the present invention defined in the following description can apply to other embodiments, deformation program, improvement project, equivalent and the other technologies scheme without departing from the spirit and scope of the present invention.
As shown in Figure 1; a kind of lead-acid battery big current balance control system; carry the high-power resistance of radiator including lead-acid battery group, heavy-current discharge resistance R(), lead-acid battery voltage detection module, singlechip controller and protection device; wherein lead-acid battery group includes at least two lead-acid batteries connected, all corresponding first contactor of the most each lead-acid battery and second contactor；The positive pole of lead-acid battery is connected to heavy-current discharge resistance the first end by the first contactor of its correspondence, and the negative pole of lead-acid battery is connected to heavy-current discharge resistance the second end by the second contactor of its correspondence；Lead-acid battery positive pole can be connected with lead-acid battery voltage detection module with negative pole with being energized；Singlechip controller includes CAN terminal and control terminal, CAN terminal is connected with lead-acid battery voltage detection module, the control terminal of control terminal and the first contactor and the second contactor connects, when singlechip controller controls the first contactor corresponding to lead-acid battery and the conducting of the second contactor, lead-acid battery and heavy-current discharge resistor coupled in parallel, synchronization only one of which lead-acid battery and heavy-current discharge resistor coupled in parallel；Protection device includes that D.C. contactor and resettable fuse, D.C. contactor and resettable fuse are cascaded and is followed by the negative pole of lead-acid battery group.
Described lead-acid battery is basic lead-acid battery cells i.e. monomer lead-acid battery.
The negative pole of equilibrium object lead-acid battery 1 connects with the positive pole of Jun Heng object lead-acid battery 2, the negative pole of equilibrium object lead-acid battery 2 connects with the positive pole of Jun Heng object lead-acid battery 3, it is sequentially connected in series each equilibrium object lead-acid battery, until the negative pole of equilibrium object lead-acid battery N-1 connects with the positive pole of Jun Heng object lead-acid battery N, all lead-acid batteries are sequentially connected in series lead-acid battery group, in lead-acid battery group, the positive pole of the most extremely lead-acid battery group of equilibrium object lead-acid battery 1, the negative pole that negative pole is lead-acid battery group of equilibrium object lead-acid battery N.
The positive pole of each equilibrium object lead-acid battery is connected with first end of heavy-current discharge resistance R by the first corresponding contactor, the negative pole of each equilibrium object lead-acid battery is connected with second end of heavy-current discharge resistance R by the second corresponding contactor, is connected with the control terminal of singlechip controller after the control terminal K parallel connection of the first contactor and the second contactor.
The D1 terminal of each first contactor connects with the positive pole of Jun Heng object lead-acid battery, and D2 terminal is connected with first end of heavy-current discharge resistance R, and control terminal K is connected with the control terminal of singlechip controller.
The D1 terminal of each second contactor connects with the negative pole of Jun Heng object lead-acid battery, and D2 terminal is connected with second end of heavy-current discharge resistance R, and control terminal K is connected with the control terminal of singlechip controller.
Described lead-acid battery voltage detection module can be connected with positive pole and the negative pole of lead-acid battery with being energized, for detecting the voltage of each lead-acid battery；It is connected with singlechip controller by CAN, sends the voltage signal detected to singlechip controller.
As in figure 2 it is shown, the lead-acid battery big current balance control system in the present embodiment is run according to following steps:
A. singlechip controller communicates with lead-acid battery voltage detection module, it is thus achieved that the voltage of each lead-acid battery.
B. singlechip controller is according to the N number of lead-acid battery voltage obtained, and finds out the lead-acid battery that magnitude of voltage is maximum, and wherein N is more than or equal to 2.
C. singlechip controller obtains the mean value of all lead-acid battery voltage.
D. jump into step e when the lead-acid battery voltage that magnitude of voltage is maximum is more than a setting threshold values with all lead-acid battery average voltage deviations, otherwise return to step a.
E. single-chip microcomputer is in parallel with heavy-current discharge resistance R by the lead-acid battery controlling the first contactor corresponding to voltage maximum lead-acid battery and the second contactor makes magnitude of voltage maximum, discharges lead-acid battery.
F. waiting the time T of setting, singlechip controller disconnects all contactless contactors by control terminal, and program returns step a.
Claims (1)
1. a lead-acid battery big current balance control system; it is characterized in that this lead-acid battery big current balance control system includes lead-acid battery group, heavy-current discharge resistance, lead-acid battery voltage detection module, singlechip controller and protection device; wherein lead-acid battery group includes at least two lead-acid batteries connected, all corresponding first contactor of the most each lead-acid battery and second contactor；The positive pole of lead-acid battery is connected to heavy-current discharge resistance the first end by the first contactor of its correspondence, and the negative pole of lead-acid battery is connected to heavy-current discharge resistance the second end by the second contactor of its correspondence；Lead-acid battery positive pole can be connected with lead-acid battery voltage detection module with negative pole with being energized；Singlechip controller includes CAN terminal and control terminal, CAN terminal is connected with lead-acid battery voltage detection module, the control terminal of control terminal and the first contactor and the second contactor connects, when singlechip controller controls the first contactor corresponding to lead-acid battery and the conducting of the second contactor, lead-acid battery and heavy-current discharge resistor coupled in parallel, synchronization only one of which lead-acid battery and heavy-current discharge resistor coupled in parallel；Protection device includes that D.C. contactor and resettable fuse, D.C. contactor and resettable fuse are cascaded and is followed by the negative pole of lead-acid battery group；
Described lead-acid battery is basic lead-acid battery cells i.e. monomer lead-acid battery or the lead-acid battery brick composed in parallel by multiple basic lead-acid battery cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337669.9A CN105871027A (en) | 2016-05-22 | 2016-05-22 | High-current equalizing control system for lead acid batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337669.9A CN105871027A (en) | 2016-05-22 | 2016-05-22 | High-current equalizing control system for lead acid batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105871027A true CN105871027A (en) | 2016-08-17 |
Family
ID=56634557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610337669.9A Pending CN105871027A (en) | 2016-05-22 | 2016-05-22 | High-current equalizing control system for lead acid batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105871027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505668A (en) * | 2016-11-11 | 2017-03-15 | 桂林理工大学 | Lead-acid battery high current equilibrium ARM control systems |
Citations (6)
| 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 |
| US20070046260A1 (en) * | 2005-08-24 | 2007-03-01 | Yazaki Corporation | Apparatus for regulating state of charge in battery assembly |
| US20080036424A1 (en) * | 2006-08-11 | 2008-02-14 | Yazaki Corporation | State-of-charge adjusting apparatus |
| US20090115372A1 (en) * | 2007-11-01 | 2009-05-07 | Honda Motor Co., Ltd. | Discharge control system |
| US20100026241A1 (en) * | 2007-07-26 | 2010-02-04 | Ju-Hyun Kang | Apparatus and method for balancing of battery cell's charge capacity |
| CN104348234A (en) * | 2014-11-21 | 2015-02-11 | 南京国臣信息自动化技术有限公司 | Battery management system with active equalization system |
-
2016
- 2016-05-22 CN CN201610337669.9A patent/CN105871027A/en active Pending
Patent Citations (6)
| 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 |
| US20070046260A1 (en) * | 2005-08-24 | 2007-03-01 | Yazaki Corporation | Apparatus for regulating state of charge in battery assembly |
| US20080036424A1 (en) * | 2006-08-11 | 2008-02-14 | Yazaki Corporation | State-of-charge adjusting apparatus |
| US20100026241A1 (en) * | 2007-07-26 | 2010-02-04 | Ju-Hyun Kang | Apparatus and method for balancing of battery cell's charge capacity |
| US20090115372A1 (en) * | 2007-11-01 | 2009-05-07 | Honda Motor Co., Ltd. | Discharge control system |
| CN104348234A (en) * | 2014-11-21 | 2015-02-11 | 南京国臣信息自动化技术有限公司 | Battery management system with active equalization system |
Non-Patent Citations (1)
| Title |
|---|
| 何仕品 等: "锂离子电池管理系统及其均衡模块的设计与研究", 《汽车工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505668A (en) * | 2016-11-11 | 2017-03-15 | 桂林理工大学 | Lead-acid battery high current equilibrium ARM control systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105846507A (en) | Lead-acid battery large current equalization method based on single-chip microcomputer control | |
| CN105958572A (en) | Lithium iron battery heavy current equalization method based on single-chip microcomputer control | |
| CN105958573A (en) | Ternary lithium battery heavy current balance control system | |
| CN105811534A (en) | Singlechip microcomputer control based large current balancing method of ternary lithium battery | |
| CN105811537A (en) | Heavy current balance control system for super capacitors | |
| CN105871028A (en) | High-current equalizing control system for LiMn2O4 batteries | |
| CN105846508A (en) | Nickel-metal hydride battery large current equalization method based on single-chip microcomputer control | |
| CN105811533A (en) | Large current balancing control system of lithium ferrous battery | |
| CN105811536A (en) | Singlechip microcomputer control base large current balancing method of lithium manganate battery | |
| CN105811535A (en) | Large current balancing control system of nickel metal hybrid battery | |
| CN105871027A (en) | High-current equalizing control system for lead acid batteries | |
| CN105846509A (en) | Super capacitor large current equalization method based on single-chip microcomputer control | |
| CN106130111A (en) | A kind of lead-acid battery big current balance method controlled based on DSP | |
| CN106129493A (en) | A kind of lithium manganate battery big current balance method controlled based on DSP | |
| CN106100048A (en) | Ternary lithium battery big current balance DSP control system | |
| CN106450523A (en) | ARM control based high current equalization method for lithium manganese oxide battery | |
| CN106026290A (en) | Super capacitor large-current equalization method based on DSP control | |
| CN106451656A (en) | Ternary lithium battery large-current balance method based on FPGA (Field Programmable Gate Array) control | |
| CN106505667A (en) | A kind of lithium manganate battery high current equalization methods controlled based on FPGA | |
| CN106169789A (en) | Lead-acid battery big current balance DSP control system | |
| CN106451654A (en) | Lithium-iron battery large-current equalization method based on FPGA control | |
| CN106025261A (en) | High-current balanced DSP control system for lithium manganate batteries | |
| CN106532816A (en) | FPGA control-based high current balancing method of super-capacitors | |
| CN106026289A (en) | Lithium iron battery large-current equalization method based on DSP control | |
| CN106026291A (en) | Ternary lithium battery large-current equalization method based on DSP control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |
|
| WD01 | Invention patent application deemed withdrawn after publication |