CN106100049A - Ni-MH battery big current balance DSP control system - Google Patents
Ni-MH battery big current balance DSP control system Download PDFInfo
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- CN106100049A CN106100049A CN201610566019.1A CN201610566019A CN106100049A CN 106100049 A CN106100049 A CN 106100049A CN 201610566019 A CN201610566019 A CN 201610566019A CN 106100049 A CN106100049 A CN 106100049A
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- Prior art keywords
- battery
- catalyst
- heavy
- current discharge
- dsp
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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)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hybrid Cells (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of Ni-MH battery big current balance DSP control system.This Ni-MH battery big current balance DSP control system includes the first catalyst and the second catalyst, heavy-current discharge resistance, Ni-MH battery voltage detection module, dsp controller and the protection device that Ni-MH battery that at least two is connected is equal with Ni-MH battery quantity.Dsp controller obtains each Ni-MH battery voltage by Ni-MH battery voltage detection module, and the equilibrium degree between Ni-MH battery is more than when setting threshold values, by Ni-MH battery maximum for voltage according to the time set by heavy-current discharge conductive discharge.Native system uses DSP as primary equalization controller, improves the stability controlled, rapidity；Native system uses catalyst matrix-style, it is achieved the heavy-current discharge to Ni-MH 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.
Description
Technical field
The invention belongs to the balancing technique field of Ni-MH battery group, particularly to a kind of Ni-MH battery big current balance DSP
Control system.
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.
Ni-MH battery includes that the negative electrode of a positive plate with nickel hydroxide as main active and an absorption hydrogen closes
Gold plate, inside has a dividing plate being made up of fiber, is contained in metal shell with alkaline electrolyte, carries one piece can automatically open up completely
The sealing plate of aerofluxus.
Owing to each monomer of Ni-MH 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 Ni-MH 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 Ni-MH 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 Ni-MH 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 Ni-MH battery group problem of inconsistency, there has been proposed the balancing technique of Ni-MH battery.Balanced management
The voltage to the effect that detecting Ni-MH 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 Ni-MH 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 Ni-MH battery Capacity Ratio 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 Ni-MH 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 Ni-MH battery big current balance DSP control system.
The present invention is achieved in that a kind of Ni-MH battery big current balance DSP control system, including Ni-MH battery group,
Heavy-current discharge resistance, Ni-MH battery voltage detection module, dsp controller and protection device, wherein Ni-MH battery group include to
The Ni-MH battery of few two series connection, all corresponding first catalyst of each Ni-MH battery and second catalyst；Each nickel
The positive pole of hydrogen battery is connected to the first end of heavy-current discharge resistance by the first catalyst of its correspondence, each Ni-MH battery
Negative pole is connected to the second end of heavy-current discharge resistance by the second catalyst of its correspondence；Anode of nickel-metal hydride battery and negative pole and nickel
Hydrogen battery voltage detection module can be connected with being energized；Dsp controller includes CAN terminal and control terminal, CAN terminal and nickel
Hydrogen battery voltage detection 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 Ni-MH battery and the conducting of the second catalyst, Ni-MH battery is with heavy-current discharge resistance also
Connection, synchronization only one of which Ni-MH 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 Ni-MH battery group.
Described Ni-MH battery is basic Ni-MH battery unit i.e. monomer Ni-MH battery or by multiple basic Ni-MH battery lists
The Ni-MH battery brick that unit composes in parallel.
The Ni-MH battery big current balance DSP control system of the present invention includes the charging and discharging balance device of Ni-MH battery, makes
Nickel-metal hydride battery systems is effectively managed in charge and discharge process and is equalized, to improve efficiency and the use of nickel-metal hydride battery systems
Life-span, and reduce the maintenance cost of nickel-metal hydride battery systems；Native system uses DSP as primary equalization controller, improves control
Stability, rapidity；Native system uses catalyst matrix-style, it is achieved the heavy-current discharge to Ni-MH battery, to improve equilibrium
Reliability, and realize 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 Ni-MH 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 Ni-MH 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 Ni-MH battery big current balance DSP control system, including Ni-MH battery group, heavy-current discharge
Resistance R (carrying the high-power resistance of radiator), Ni-MH battery voltage detection module, dsp controller and protection device, wherein nickel
Hydrogen battery group includes at least two Ni-MH batteries connected, all corresponding first catalyst of each Ni-MH battery and one second
Catalyst；The positive pole of each Ni-MH battery is connected to first end of heavy-current discharge resistance R by the first catalyst of its correspondence,
The negative pole of each Ni-MH battery is connected to second end of heavy-current discharge resistance R by the second catalyst of its correspondence；Ni-mh electricity
Pond positive pole can be connected with Ni-MH battery voltage detection module with negative pole with being energized；Dsp controller includes CAN terminal and control
Terminal, CAN terminal is connected with Ni-MH 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 Ni-MH battery and the conducting of the second catalyst, Ni-MH battery is with big
Current discharge resistance R is in parallel, and synchronization only one of which Ni-MH 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 Ni-MH battery group
Negative pole.
Described Ni-MH battery is basic Ni-MH battery unit i.e. monomer Ni-MH battery.
The negative pole of equilibrium object Ni-MH battery 1 connects with the positive pole of Jun Heng object Ni-MH battery 2, described equilibrium object ni-mh
The negative pole of battery 2 connects with the positive pole of Jun Heng object Ni-MH battery 3, is sequentially connected in series each equilibrium object Ni-MH battery, until all
The negative pole of weighing apparatus object Ni-MH battery N-1 connects with the positive pole of Jun Heng object Ni-MH battery N, and all Ni-MH batteries are sequentially connected in series
Ni-MH battery group, in described Ni-MH battery group, the most described Ni-MH battery group of described equilibrium object Ni-MH battery 1 is just
Pole, the negative pole that negative pole is described Ni-MH battery group of described equilibrium object Ni-MH battery N.
The positive pole of each described equilibrium object Ni-MH 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 Ni-MH 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 Ni-MH 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 Ni-MH 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.
The connection that described Ni-MH battery voltage detection module can be led to the positive pole of described Ni-MH battery and negative pole, is used for
Detect the voltage of each Ni-MH battery；Linked with described dsp controller by CAN, send to dsp controller and detected
Voltage signal.
As in figure 2 it is shown, the Ni-MH battery big current balance DSP control system in the present embodiment is run according to following steps:
A. dsp controller communicates with Ni-MH battery voltage detection module, it is thus achieved that the voltage of each Ni-MH battery.
B. dsp controller is according to the N number of Ni-MH battery voltage obtained, and finds out the Ni-MH battery that magnitude of voltage is maximum, wherein N
More than or equal to 2.
C. dsp controller obtains the average voltage of all Ni-MH batteries.
D. when the Ni-MH battery voltage of magnitude of voltage maximum and the average voltage deviations of all Ni-MH 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 Ni-MH battery and the second catalyst makes magnitude of voltage
Big Ni-MH battery and heavy-current discharge resistor coupled in parallel, discharge to Ni-MH 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 Ni-MH battery big current balance DSP control system, it is characterised in that this Ni-MH battery big current balance DSP controls
System includes Ni-MH battery group, heavy-current discharge resistance, Ni-MH battery voltage detection module, dsp controller and protection device, its
Middle Ni-MH battery group includes at least two Ni-MH batteries connected, all corresponding first catalyst of each Ni-MH battery and one
Second catalyst；The positive pole of each Ni-MH battery is connected to the first of heavy-current discharge resistance by the first catalyst of its correspondence
End, the negative pole of each Ni-MH battery is connected to the second end of heavy-current discharge resistance by the second catalyst of its correspondence；Ni-mh
Anode can be connected with Ni-MH battery voltage detection module with negative pole with being energized；Dsp controller includes CAN terminal and control
Terminal processed, CAN terminal is connected with Ni-MH 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 Ni-MH battery and the conducting of the second catalyst, Ni-MH battery with
Heavy-current discharge resistor coupled in parallel, synchronization only one of which Ni-MH 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 Ni-MH battery group
Negative pole；
Described Ni-MH battery is basic Ni-MH battery unit i.e. monomer Ni-MH battery or by multiple basic Ni-MH battery unit also
The Ni-MH battery brick that joint group becomes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566019.1A CN106100049A (en) | 2016-07-19 | 2016-07-19 | Ni-MH battery big current balance DSP control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566019.1A CN106100049A (en) | 2016-07-19 | 2016-07-19 | Ni-MH battery big current balance DSP control system |
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| Publication Number | Publication Date |
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| CN106100049A true CN106100049A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610566019.1A Pending CN106100049A (en) | 2016-07-19 | 2016-07-19 | Ni-MH battery big current balance DSP control system |
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Citations (4)
| 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 |
| 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 |
| CN105811535A (en) * | 2016-05-22 | 2016-07-27 | 桂林理工大学 | Large current balancing control system of nickel metal hybrid battery |
-
2016
- 2016-07-19 CN CN201610566019.1A patent/CN106100049A/en active Pending
Patent Citations (4)
| 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 |
| 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 |
| CN105811535A (en) * | 2016-05-22 | 2016-07-27 | 桂林理工大学 | Large current balancing control system of nickel metal hybrid battery |
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》 * |
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Application publication date: 20161109 |