CN104993550A - Power supply series-connected battery pack charging management system and charging control method - Google Patents
Power supply series-connected battery pack charging management system and charging control method Download PDFInfo
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- CN104993550A CN104993550A CN201510455419.0A CN201510455419A CN104993550A CN 104993550 A CN104993550 A CN 104993550A CN 201510455419 A CN201510455419 A CN 201510455419A CN 104993550 A CN104993550 A CN 104993550A
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- cell batteries
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- battery pack
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a power supply series-connected battery pack charging management system and a charging control method. The system comprises a series-connection bus, battery cells, battery cell turning-off switches, battery cell turning-on switches, battery cell detection points, a voltage-adjustable direct current power supply and a computer. Compared with the prior art, the system adopting a way to monitor the voltages of battery cells in a battery pack thoroughly prevents phenomena of excessively high or low charging voltages. Meanwhile, the problem that currently the capacity of each battery cell is inconsistent during a series-connected battery pack charging process is solved. The battery cell effectiveness is achieved to the maximum. The service lifetime of each battery cell is prolonged. The system safety is enhanced. The system and the method have popularization and application value.
Description
Technical field
The present invention relates to a kind of charge in batteries management system, particularly relate to a kind of power sources in series storage battery pack charging management system and charge control method.
Background technology
Due to single battery, often capacity is lower, the requirement of hicap can not be met, need single battery is in parallel or the formation batteries that is together in series thus, to improve supply power voltage and memory capacity, as in electric automobile, in order to improve the terminal voltage of batteries, usually by dozens of even up to a hundred storage batterys be together in series.
The monomer of storage battery is due to reasons such as manufacture crafts, density of electrolyte between different monomers, electrode equivalent resistance etc. also exist difference, even if these differences can cause series battery each monomer, charging and discharging currents is identical, also the capacity of each monomer can be made to produce different, and then affect the work of whole battery pack.The particularly individual difference of cell batteries, the capacity of monomer can be caused after a long time use different, the easier overcharge of the cell making capacity low and electric discharge, thus cell panel sulfuration is aggravated, capacity difference, apart from the vicious circle further widened, produces serious influence to the life-span of whole batteries.If the cell batteries that Protection capacity is low, then other cell batteries then can undercharge.
Series battery is in charging process, a major issue is exactly to select suitable charging voltage, if charging voltage is selected too high, initial stage charging current of not only charging is excessive, and overcharge phenomenon can be there is, so that cause plate buckling, active material comes off in a large number, high harm is crossed in storage battery temperature rise.If charging voltage is selected too low, charging rate not only can be made to slow down, and charging can be stopped prematurely, cause charge in batteries not enough, cause capacity reduction, the lost of life.After batteries uses, because the capacity forming each cell batteries of batteries is different, voltage is caused to there is difference, so no matter how charging voltage is selected, for the cell batteries in whole batteries, always can be formed and overcharge or the problem of undercharge, so traditional charging modes not only can affect charge efficiency, also can shorten the useful life of storage battery.
Summary of the invention
Object of the present invention is just to provide a kind of power sources in series storage battery pack charging management system and charge control method to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
Power sources in series storage battery pack charging management system of the present invention, comprise serial bus, cell batteries, cell batteries excision switch, cell batteries drops into switch, cell batteries test point, tunable voltage dc power supply and computer, described cell batteries, described cell batteries excision switch, described cell batteries drops into switch and described cell batteries test point is multiple, multiple described cell batteries excision switch is all connected in series on described serial bus, the two ends of described serial bus are connected with the two ends of described tunable voltage dc power supply, each described cell batteries test point is arranged at the two ends of each described cell batteries respectively, the equal correspondence of each described cell batteries is connected in parallel a described cell batteries excision switch, each described cell batteries drops into switch and is connected in series between described cell batteries and described serial bus respectively, described computer excises switch with cell batteries described in each respectively, cell batteries drops into switch and is connected with cell batteries test point.
Improve as one, described computer is also connected with ammeter and voltmeter, and described voltmeter is parallel to the two ends of described computer and described tunable voltage dc power supply simultaneously.
Particularly, described cell batteries excision switch and described cell batteries drop into switch and are relay control switch.
The charge control method of power sources in series storage battery pack charging management system of the present invention, comprises the following steps:
(1) computer arranges according to the sequence number of cell batteries the sequence number that each cell batteries drops into switch and each cell batteries excision switch;
(2), when starting to charge, first disconnect all cell batteries excision switch, closed all cell batteries drop into switch, according to serial bus voltage and required electric current, charge by computer settings initial voltage;
(3) when monitor first any cell batteries in battery pack reach be full of voltage time corresponding cell batteries drop into switch and automatically disconnect, meanwhile, corresponding cell batteries excision switch then closes automatically, this cell batteries is cut bus, continues to charge to other cell batteries after computer adjustment charging voltage;
(4) second any cell batteries reach when being full of voltage and repeat step (2) and step (3), and to the last a cell batteries is full of charging end by that analogy.
Beneficial effect of the present invention is:
The present invention is a kind of power sources in series storage battery pack charging management system and charge control method, compared with prior art, the present invention adopts the voltage of monitoring batteries cell batteries, stop charging voltage completely too high and too low, solve problem inconsistent to the capacity of cell batteries each during charged by series storage battery at present simultaneously, play the effectiveness of battery to greatest extent, extend the useful life of battery, the fail safe of increase system, has the value applied.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: power sources in series storage battery pack charging management system of the present invention, comprise serial bus L, cell batteries 1,2 ... n, cell batteries excision switch k
1... .k
n, cell batteries drops into switch j
1... ..j
n, cell batteries test point u
1... .u
n, tunable voltage dc power supply and computer PC, described cell batteries n, described cell batteries excision switch k
n, described cell batteries drops into switch j
nwith described cell batteries test point u
nbe multiple, multiple described cell batteries excision switch k
nall be connected in series on described serial bus L, the two ends of described serial bus L are connected with the two ends of described tunable voltage dc power supply, each described cell batteries test point u
nbe arranged at the two ends of each described cell batteries n respectively, the equal correspondence of each described cell batteries n is connected in parallel a described cell batteries excision switch k
n, each described cell batteries drops into switch j
nbe connected in series between described cell batteries n and described serial bus L respectively, described computer PC excises switch k with cell batteries described in each respectively
n, cell batteries drops into switch j
nwith cell batteries test point u
nconnect.
Improve as one, described computer PC is also connected with ammeter I and voltmeter V, described voltmeter V is parallel to the two ends of described computer PC and described tunable voltage dc power supply simultaneously.
Particularly, described cell batteries excision switch k
nswitch j is dropped into described cell batteries
nbe relay control switch.
The charge control method of power sources in series storage battery pack charging management system of the present invention, comprises the following steps:
(1) computer PC arranges each cell batteries according to the sequence number of cell batteries n and drops into switch j
nwith each cell batteries excision switch k
nsequence number;
(2), when starting to charge, all cell batteries excision switch k is first disconnected
n, closed all cell batteries drop into switch j
n, according to serial bus L voltage and required electric current, charge by computer PC sets an initial voltage;
(3) when monitor first any cell batteries n in battery pack reach be full of voltage time corresponding cell batteries drop into switch j
nautomatic disconnection, meanwhile, corresponding cell batteries excision switch k
nthen automatically close, this cell batteries n is cut bus, continues to charge to other cell batteries n after computer PC adjustment charging voltage;
(4) second any cell batteries n reach when being full of voltage and repeat step (2) and step (3), and to the last a cell batteries n is full of charging end by that analogy.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (4)
1. a power sources in series storage battery pack charging management system, it is characterized in that: comprise serial bus, cell batteries, cell batteries excision switch, cell batteries drops into switch, cell batteries test point, tunable voltage dc power supply and computer, described cell batteries, described cell batteries excision switch, described cell batteries drops into switch and described cell batteries test point is multiple, multiple described cell batteries excision switch is all connected in series on described serial bus, the two ends of described serial bus are connected with the two ends of described tunable voltage dc power supply, each described cell batteries test point is arranged at the two ends of each described cell batteries respectively, the equal correspondence of each described cell batteries is connected in parallel a described cell batteries excision switch, each described cell batteries drops into switch and is connected in series between described cell batteries and described serial bus respectively, described computer excises switch with cell batteries described in each respectively, cell batteries drops into switch and is connected with cell batteries test point.
2. power sources in series storage battery pack charging management system according to claim 1, it is characterized in that: described computer is also connected with ammeter and voltmeter, described voltmeter is parallel to the two ends of described computer and described tunable voltage dc power supply simultaneously.
3. power sources in series storage battery pack charging management system according to claim 1, is characterized in that: described cell batteries excision switch and described cell batteries drop into switch and be relay control switch.
4. a charge control method for power sources in series storage battery pack charging management system, is characterized in that, comprises the following steps:
(1) computer arranges according to the sequence number of cell batteries the sequence number that each cell batteries drops into switch and each cell batteries excision switch;
(2), when starting to charge, first disconnect all cell batteries excision switch, closed all cell batteries drop into switch, according to serial bus voltage and required electric current, charge by computer settings initial voltage;
(3) when monitor first any cell batteries in battery pack reach be full of voltage time corresponding cell batteries drop into switch and automatically disconnect, meanwhile, corresponding cell batteries excision switch then closes automatically, this cell batteries is cut bus, continues to charge to other cell batteries after computer adjustment charging voltage;
(4) second any cell batteries reach when being full of voltage and repeat step (2) and step (3), and to the last a cell batteries is full of charging end by that analogy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455419.0A CN104993550A (en) | 2015-07-29 | 2015-07-29 | Power supply series-connected battery pack charging management system and charging control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510455419.0A CN104993550A (en) | 2015-07-29 | 2015-07-29 | Power supply series-connected battery pack charging management system and charging control method |
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| CN104993550A true CN104993550A (en) | 2015-10-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552990A (en) * | 2015-12-15 | 2016-05-04 | 中国北方车辆研究所 | Series intelligent balanced charging system of lithium ion storage battery pack and charging method |
| CN105954566A (en) * | 2016-06-17 | 2016-09-21 | 张家港市泓溢电源科技有限公司 | Lead acid battery pack voltage sampling form |
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|---|---|---|---|---|
| JP2011188570A (en) * | 2010-03-05 | 2011-09-22 | Toyota Motor Corp | Apparatus and method for power supply control |
| CN102306943A (en) * | 2011-09-15 | 2012-01-04 | 河北工业大学 | Lithium ion battery management system |
| CN202651832U (en) * | 2012-05-29 | 2013-01-02 | 河南省电力公司安阳供电公司 | Vehicle battery pack |
| CN104253469A (en) * | 2014-09-24 | 2014-12-31 | 于志章 | Secondary battery pack charging and discharging management system |
| CN204794267U (en) * | 2015-07-29 | 2015-11-18 | 曹兵 | Power series storage battery charge management system |
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2015
- 2015-07-29 CN CN201510455419.0A patent/CN104993550A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011188570A (en) * | 2010-03-05 | 2011-09-22 | Toyota Motor Corp | Apparatus and method for power supply control |
| CN102306943A (en) * | 2011-09-15 | 2012-01-04 | 河北工业大学 | Lithium ion battery management system |
| CN202651832U (en) * | 2012-05-29 | 2013-01-02 | 河南省电力公司安阳供电公司 | Vehicle battery pack |
| CN104253469A (en) * | 2014-09-24 | 2014-12-31 | 于志章 | Secondary battery pack charging and discharging management system |
| CN204794267U (en) * | 2015-07-29 | 2015-11-18 | 曹兵 | Power series storage battery charge management system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552990A (en) * | 2015-12-15 | 2016-05-04 | 中国北方车辆研究所 | Series intelligent balanced charging system of lithium ion storage battery pack and charging method |
| CN105954566A (en) * | 2016-06-17 | 2016-09-21 | 张家港市泓溢电源科技有限公司 | Lead acid battery pack voltage sampling form |
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Application publication date: 20151021 |