CN106169789A - Lead-acid battery big current balance DSP control system - Google Patents
Lead-acid battery big current balance DSP control system Download PDFInfo
- Publication number
- CN106169789A CN106169789A CN201610565929.8A CN201610565929A CN106169789A CN 106169789 A CN106169789 A CN 106169789A CN 201610565929 A CN201610565929 A CN 201610565929A CN 106169789 A CN106169789 A CN 106169789A
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- China
- Prior art keywords
- lead
- acid battery
- catalyst
- heavy
- current discharge
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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
-
- 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
-
- 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
- H02J7/00304—Overcurrent protection
-
- 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)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of lead-acid battery big current balance DSP control system.This lead-acid battery big current balance DSP control system includes the first catalyst and the second catalyst, heavy-current discharge resistance, lead-acid battery voltage detection module, dsp controller and the protection device that the lead-acid battery that at least two connects, described lead-acid battery quantity are equal.Dsp controller obtains each lead-acid battery voltage by lead-acid battery voltage detection module, and the equilibrium degree between lead-acid battery is more than when setting threshold values, by lead-acid battery maximum for voltage according to the time set by heavy-current discharge conductive discharge.Native system uses DSP as primary equalization controller, reduces the cost of system；Native system uses catalyst 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 simple in construction, easy to operate, safe and reliable, portfolio effect is good.
Description
Technical field
The invention belongs to lead-acid battery group balancing technique field, particularly to a kind of lead-acid battery big current balance DSP control
System processed.
Background technology
The development of fuel-engined vehicle causes the huge consumption of petroleum resources, the continuous intensification of global energy crisis, adds simultaneously
The acute harm of greenhouse effect and atmospheric pollution.Most countries, government and Automobile Enterprises are all it is well recognized that save in the world
Energy reduction of 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 noise, emission-free discharge, environmental friendliness, and the thermal efficiency is high, discharges low, and recoverable improves energy resource structure etc.
Advantage.Each automobile production enterprise the most actively researches and develops 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 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 accumulator of sulfuric acid solution.Lead
Under acid battery charge state, positive pole is mainly composed of Lead oxide brown, and negative pole is mainly composed of lead；Under discharge condition, both positive and negative polarity
Main component 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
There is difference in battery performance index.Although along with the continuous progress of technology, before dispatching from the factory, the difference between lead-acid battery inside is continuous
Reduce, but during using, faint discordance constantly can be amplified along with use condition.Such discordance will be led
The capacity causing whole group of lead-acid battery is increasing with design load deviation.In charging process, first the monomer that capacity is little will be filled
Full, 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, stopping is discharged by whole Battery pack.The existence of such problem of inconsistency, causes the active volume of lead-acid battery group
With aspects such as service lifes far away from cell, and increase difficulty battery being managed and controlling.Practice have shown that,
Significantly reduce when the consistency problem of set of cells develops into Individual cells generation capacity, when internal resistance such as significantly improves at the situation, whole group
The performance of battery can be at short time high progression, so that whole set of cells is scrapped.
In order to solve lead-acid battery group problem of inconsistency, there has been proposed the balancing technique of lead-acid battery.Balanced management
The voltage to the effect that detecting lead-acid battery group, the parameter such as electric current, these parameters are identified, analyze the consistent of battery
Property, by controlling device, the monomer of energy height is discharged, make the state of each monomer reach unanimity.By effective equal
Weighing apparatus control strategy and equalizing circuit can improve the consistency problem of set of cells, it is possible to extend the life-span of set of cells, reduce battery
The maintenance cost of group, 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 each monomer
Voltage, is discharged by the discharge resistance of oneself correspondence to the monomer that monomer is higher.When lead-acid battery capacity is bigger,
This discharge resistance discharge current would become hard to meet the requirement of fast uniform.If by discharge resistance merit corresponding for each lead-acid battery
Rate becomes big, and its volume and heat radiation are by the face of new challenge, and what the system of existing employing resistance equilibrium seldom had big current balance is
System.
Summary of the invention
It is an object of the invention to provide a kind of lead-acid battery big current balance DSP control system.
The present invention is achieved in that a kind of lead-acid battery big current balance DSP control system, including lead-acid battery group,
Heavy-current discharge resistance, lead-acid battery voltage detection module, dsp controller and protection device, wherein lead-acid battery group include to
The lead-acid battery of few two series connection, all corresponding first catalyst of each lead-acid battery and second catalyst；Each lead
The positive pole of acid battery is connected to the first end of heavy-current discharge resistance by the first catalyst of its correspondence, each lead-acid battery
Negative pole is connected to the second end of heavy-current discharge resistance by the second catalyst of its correspondence；Lead-acid battery positive pole and negative pole and lead
Acid battery voltage sensing module can be connected with being energized；Dsp controller includes CAN terminal and control terminal, CAN terminal and lead
Acid battery voltage sensing module connects, and the control terminal of control terminal and the first catalyst and the second catalyst connects；DSP controls
When device controls the first catalyst corresponding to lead-acid battery and the conducting of the second catalyst, lead-acid battery is with heavy-current discharge resistance also
Connection, synchronization only one of which lead-acid battery and heavy-current discharge resistor coupled in parallel；Protection device includes D.C. contactor and from extensive
Double insurance silk, D.C. contactor and resettable fuse are cascaded and are 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 by multiple basic lead-acid battery lists
The lead-acid battery brick that unit composes in parallel.
The lead-acid battery big current balance DSP control system of the present invention includes the charging and discharging balance device of lead-acid battery, makes
Acid Battery System is effectively managed in charge and discharge process and is equalized, to improve efficiency and the use of Acid Battery System
Life-span, and reduce the maintenance cost of Acid Battery System；Native system uses DSP as primary equalization controller, reduces system
Cost；Native system uses catalyst matrix-style, it is achieved the heavy-current discharge to lead-acid battery, to improve the reliability of equilibrium,
And realize heavy-current discharge；Native system simple in construction, easy to operate, safe and reliable, portfolio effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of lead-acid battery big current balance DSP control system in the embodiment of the present invention.
Fig. 2 is the equilibrium control in the embodiment of the present invention in lead-acid battery big current balance DSP control system charge and discharge process
Method flow diagram processed.
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.Below describe in excellent
Select embodiment to be only used as citing, it may occur to persons skilled in the art that other obvious modification.Define in the following description
The ultimate principle of the present invention can apply to other embodiments, deformation program, improvement project, equivalent and the not back of the body
Other technologies scheme from the spirit and scope of the present invention.
As it is shown in figure 1, a kind of lead-acid battery big current balance DSP control system, including lead-acid battery group, heavy-current discharge
Resistance R (carrying the high-power resistance of radiator), lead-acid battery voltage detection module, dsp controller and protection device, Qi Zhongqian
Acid set of cells includes at least two lead-acid batteries connected, all corresponding first catalyst of each lead-acid battery and one second
Catalyst；The positive pole of each lead-acid battery is connected to first end of heavy-current discharge resistance R by the first catalyst of its correspondence,
The negative pole of each lead-acid battery is connected to second end of heavy-current discharge resistance R by the second catalyst of its correspondence；Plumbic acid electricity
Pond positive pole can be connected with lead-acid battery voltage detection module with negative pole with being energized；Dsp controller includes CAN terminal and control
Terminal, CAN terminal is connected with lead-acid battery voltage detection module, control terminal and the first catalyst and the control of the second catalyst
Terminal connects；When dsp controller controls the first catalyst corresponding to lead-acid battery and the conducting of the second catalyst, lead-acid battery is with big
Current discharge resistance R is in parallel, and synchronization only one of which lead-acid battery is in parallel with heavy-current discharge resistance R；Protection device includes
D.C. contactor and resettable fuse, D.C. contactor and resettable fuse are cascaded and are followed by lead-acid battery group
Negative pole.
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, described equilibrium object plumbic acid
The negative pole of battery 2 connects with the positive pole of Jun Heng object lead-acid battery 3, is sequentially connected in series each equilibrium object lead-acid battery, until all
The negative pole of weighing apparatus object lead-acid battery N-1 connects with the positive pole of Jun Heng object lead-acid battery N, and all lead-acid batteries are sequentially connected in series
Lead-acid battery group, in described lead-acid battery group, the most described lead-acid battery group of described equilibrium object lead-acid battery 1 is just
Pole, the negative pole that negative pole is described lead-acid battery group of described equilibrium object lead-acid battery N.
The positive pole of each described equilibrium object lead-acid battery is put with described big electric current by corresponding described first catalyst
First end of electricity resistance R connects, the negative pole of each described equilibrium object lead-acid battery by corresponding described second catalyst with
Second end of described heavy-current discharge resistance R connects, and the control terminal K of described first catalyst and described second catalyst is in parallel
Control terminal with described dsp controller is connected afterwards.
The D1 terminal of each described first catalyst connects with the positive pole of described equilibrium object lead-acid battery, D2 terminal and institute
The first end stating heavy-current discharge resistance R connects, and control terminal K and DSP control terminal is connected.
The D1 terminal of each described second catalyst connects with the negative pole of described equilibrium object lead-acid battery, D2 terminal and institute
The second end stating heavy-current discharge resistance R connects, and control terminal K and DSP control terminal is connected.
Described lead-acid battery voltage detection module can be connected with positive pole and the negative pole of described lead-acid battery with being energized
Connect, for detecting the voltage of each lead-acid battery；Linked with described dsp controller by CAN, send out to dsp controller
Send detected voltage signal.
As in figure 2 it is shown, the lead-acid battery of the present embodiment big current balance DSP control system is run according to following steps:
A. dsp controller communicates with lead-acid battery voltage detection module, it is thus achieved that the voltage of each lead-acid battery.
B. dsp 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, wherein N
More than or equal to 2.
C. dsp controller obtains the average voltage of all lead-acid batteries.
D. when the lead-acid battery voltage of magnitude of voltage maximum and the average voltage deviations of all lead-acid batteries are more than a setting valve
Jump into step e during value, otherwise return to step a.
E. DSP is by controlling the first catalyst corresponding to voltage maximum lead-acid battery and the second catalyst makes magnitude of voltage
Big lead-acid battery and heavy-current discharge resistor coupled in parallel, discharge to lead-acid battery.
F. waiting the time T of setting, dsp controller disconnects all contactless contactors by control terminal, and program returns step
Rapid a.
Claims (1)
1. a lead-acid battery big current balance DSP control system, it is characterised in that this lead-acid battery big current balance DSP controls
System includes lead-acid battery group, heavy-current discharge resistance, lead-acid battery voltage detection module, dsp controller and protection device, its
Middle lead-acid battery group includes at least two lead-acid batteries connected, all corresponding first catalyst of each lead-acid battery and one
Second catalyst；The positive pole of each lead-acid battery is connected to the first of heavy-current discharge resistance by the first catalyst of its correspondence
End, the negative pole of each lead-acid battery is connected to the second end of heavy-current discharge resistance by the second catalyst of its correspondence；Plumbic acid
Anode can be connected with lead-acid battery voltage detection module with negative pole with being energized；Dsp controller includes CAN terminal and control
Terminal processed, CAN terminal is connected with lead-acid battery voltage detection module, control terminal and the first catalyst and the control of the second catalyst
Terminal processed connects；When dsp controller controls the first catalyst corresponding to lead-acid battery and the conducting of the second catalyst, lead-acid battery with
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
D.C. contactor and resettable fuse, D.C. contactor and resettable fuse are cascaded and are followed by lead-acid battery group
Negative pole；
Described lead-acid battery is basic lead-acid battery cells i.e. monomer lead-acid battery or by multiple basic lead-acid battery cells also
The lead-acid battery brick that joint group becomes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565929.8A CN106169789A (en) | 2016-07-19 | 2016-07-19 | Lead-acid battery big current balance DSP control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565929.8A CN106169789A (en) | 2016-07-19 | 2016-07-19 | Lead-acid battery big current balance DSP control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106169789A true CN106169789A (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610565929.8A Pending CN106169789A (en) | 2016-07-19 | 2016-07-19 | Lead-acid battery big current balance DSP control system |
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Citations (6)
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|---|---|---|---|---|
| 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 |
| CN101765958A (en) * | 2007-07-26 | 2010-06-30 | 株式会社Lg化学 | 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
- 2016-07-19 CN CN201610565929.8A patent/CN106169789A/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 |
| CN101765958A (en) * | 2007-07-26 | 2010-06-30 | 株式会社Lg化学 | 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)
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Application publication date: 20161130 |
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