CN102810698A - Storage battery pack, and method and system for storage battery pack charge and discharge management - Google Patents
Storage battery pack, and method and system for storage battery pack charge and discharge management Download PDFInfo
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- 238000003860 storage Methods 0.000 title claims abstract description 192
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 claims description 24
- 230000014759 maintenance of location Effects 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 6
- 210000004027 cell Anatomy 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- NSAODVHAXBZWGW-UHFFFAOYSA-N cadmium silver Chemical compound [Ag].[Cd] NSAODVHAXBZWGW-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a storage battery pack containing a plurality of storage battery units. The storage battery pack comprises: a plurality of primary storage battery sub-packs, wherein each primary storage battery sub-pack comprises more than two storage battery units connected in series, when a terminal voltage of each primary storage battery sub-pack is not less than a first threshold voltage, the storage battery pack is in a first work mode and the primary storage battery sub-packs are connected in series to supply power to a load, when a terminal voltage of at least one of the primary storage battery sub-packs is less than the first threshold voltage, the storage battery pack is in a second work mode and the primary storage battery sub-pack with the terminal voltage less than the first threshold voltage is charged to a saturation voltage of the primary storage battery sub-pack. The invention further discloses a method and a system for storage battery pack charge and discharge management.
Description
Technical field
The present invention relates to the mobile communication power supply technical field, and in particular to the method for a kind of batteries, batteries management of charging and discharging and the system of batteries management of charging and discharging.
Background technology
In the direct current output a series of outputs such as 24V, 12-30V, 36V, 48V are arranged in the military field operations multifunctional mobile power-supply system.Since in the military applications some the power cutoff device power consumption is not bigger, thereby generally adopt the pattern of series connection batteries to avoid too high electric current.Yet in traditional series connection batteries, there is individual difference in the different batteries unit in the batteries, if this individual difference gets the brush-off, will cause the batteries service efficiency to reduce, and reduces the useful life of storage battery.In view of the specific (special) requirements of the applied environment of military equipment, also do not have in the market a kind ofly can satisfy the batteries of these demands, the method and system of batteries management of charging and discharging.
Summary of the invention
The purpose of this invention is to provide the method for a kind of batteries, batteries management of charging and discharging and the system of batteries management of charging and discharging, thereby alleviate or solve the described problem of preamble.
According to an aspect of the present invention; A kind of batteries that comprises a plurality of secondary battery units; This batteries can comprise: a plurality of elementary electric power storages pond group, each said elementary electric power storage pond group comprise the secondary battery unit of series connection more than two, wherein when the terminal voltage of each said a plurality of elementary electric power storages pond group is not less than first threshold voltage; This batteries is in first mode of operation, and this moment, said elementary electric power storage pond group was connected in series with to electric; And wherein when the terminal voltage of at least one said a plurality of elementary electric power storages pond group is lower than said first threshold voltage; This batteries is in second mode of operation, and the elementary electric power storage pond group that this moment, terminal voltage was lower than first threshold voltage charges to the saturation voltage of this elementary electric power storage pond group.
Preferably, two the above elementary electric power storage pond groups are connected in series and form secondary electric power storage pond group.
Preferably, under said first mode of operation, according to the voltage and/or the power demand of load, by elementary electric power storage pond group or secondary electric power storage pond group to load direct current supply.
Preferably, under said second mode of operation, after elementary electric power storage pond group charges to the saturation voltage of said elementary electric power storage pond group, secondary electric power storage pond group is charged to the saturation voltage of said secondary electric power storage pond group.
Preferably, said elementary electric power storage pond group and secondary electric power storage pond group are respectively by charging with the corresponding charge-discharge modules of its nominal voltage.
Preferably, under said second mode of operation, the elementary electric power storage pond group that terminal voltage is lower than first threshold voltage can charge to second threshold voltage with first charge rate, then can charge to the saturation voltage of this elementary electric power storage pond group with second charge rate.
Preferably, under said second mode of operation, said first charge rate can be C/15-C/10, and said second charge rate can be 2C-10C.
Preferably, said first threshold voltage can be the 60-90% of nominal voltage, and said second threshold voltage can be the 85-95% of nominal voltage, and said saturation voltage can be than the high 5-25% of nominal voltage.
Preferably, the number of said secondary battery unit can be 24, and each said elementary electric power storage pond group can comprise 2,4,6,8 or 12 secondary battery units.
Preferably, said secondary battery unit can be acid cell, for example lead acid accumulator etc.Alternatively, said secondary battery unit can be alkaline battery, for example iron-nickel storage battery, cadmium-nickel storage cell, nickel-hydrogen accumulator, zinc-silver storage battery, silver cadmium cell, nickel zinc cell etc.
According to a further aspect in the invention; A kind of method to the batteries management of charging and discharging that comprises a plurality of secondary battery units has been proposed; This batteries comprises a plurality of elementary electric power storages pond group; Each said elementary electric power storage pond group comprises the secondary battery unit of series connection more than two; Said method can comprise: when the terminal voltage of each said a plurality of elementary electric power storages pond group is not less than first threshold voltage, make said batteries be in first mode of operation, this moment said elementary electric power storage pond group being connected in series is used for electric; And when the terminal voltage of at least one said a plurality of elementary electric power storages pond group is lower than said first threshold voltage; Make said batteries be in second mode of operation, the elementary electric power storage pond group that be lower than first threshold voltage with terminal voltage this moment charges to the saturation voltage of this elementary electric power storage pond group.
According to another aspect of the invention; A kind of system to the batteries management of charging and discharging that comprises a plurality of secondary battery units has been proposed; This batteries comprises a plurality of elementary electric power storages pond group; Each said elementary electric power storage pond group comprises the secondary battery unit of series connection more than two; Said system comprises can operate to carry out the charging-discharging controller of following step: when the terminal voltage of each said a plurality of elementary electric power storages pond group is not less than first threshold voltage, make said batteries be in first mode of operation, this moment said elementary electric power storage pond group being connected in series is used for electric; And when the terminal voltage of at least one said a plurality of elementary electric power storages pond group is lower than said first threshold voltage; Make said batteries be in second mode of operation, the elementary electric power storage pond group that be lower than first threshold voltage with terminal voltage this moment charges to the saturation voltage of this elementary electric power storage pond group.
Term as used herein " equalizing charge " is meant a kind of continuity charging of charging fully for all cell batteries of guaranteeing in the batteries.
Term as used herein " nominal voltage " is meant the suitable voltage approximation that is used for differentiating battery types.
Term as used herein " saturation voltage " is meant the ceiling voltage that storage battery allows.
Term as used herein " charge rate " is meant the magnitude numerical value of electric current when being used for representing battery charge.In this application, charge rate is a unit with battery rating (C).For example, the charge rate of 10C represent needs 0.1 hour with charge in batteries to its rated capacity.
Term as used herein " trickle charge " is meant and is the compensation self discharge, makes storage battery remain on the continuous low current charge of approximate complete charged state.
Term as used herein " boost charge " is meant a kind of partial charging with the high charge speed short time.
Description of drawings
Hereinafter, through the mode of instance the present invention is carried out detailed explaining with reference to embodiment in conjunction with accompanying drawing, in the accompanying drawings:
Fig. 1 is the structured flowchart of the batteries management of charging and discharging system of the embodiment of the invention; And
Fig. 2 is the flow chart of the method for managing charge/discharge of the embodiment of the invention.
Embodiment
With reference to figure 1, the figure shows the structured flowchart of the batteries charge-discharge circuit system of the embodiment of the invention.Accumulator charging/discharging circuit of the present invention system 10 comprises power supply 100, charge-discharge modules 200, batteries 300, load 400 and charging-discharging controller 500.Power supply 100 is used for batteries 300 is charged.
Note, also can comprise other functional part that those skilled in the art know according to batteries charge-discharge circuit of the present invention system 10.For example, alternatively, this batteries charge-discharge circuit system 10 also can comprise current-voltage sampling circuit, and it is used to gather the electric current and/or the voltage of batteries and load, and said electric current and/or voltage are offered charging-discharging controller 500 as control signal.
In addition, alternatively, this batteries charge-discharge circuit system 10 also can comprise temperature sensing circuit, and it is used for detecting the temperature of environment of temperature and the batteries of batteries secondary battery unit, and the temperature that is detected is offered charging-discharging controller 500.Cross when low or too high when the temperature that is detected, all can not charge, otherwise will damage storage battery batteries.Suitable charging temperature scope is between 0 ℃～50 ℃, preferably between 2.5 ℃～40 ℃.
For fear of unnecessarily bluring the description of this invention, these functional parts are not described in detail here.
Batteries of the present invention can comprise the secondary battery unit of different numbers.In the exemplary embodiment, batteries 300 can comprise 24 secondary battery units.
Each elementary electric power storage pond group can comprise the secondary battery unit of equal number or the secondary battery unit of varying number.For example, each elementary electric power storage pond group can comprise 2,3,4,6,8 or 12 secondary battery units.In the exemplary embodiment, each elementary electric power storage pond group can comprise for example 6 secondary battery units respectively.Therefore, batteries of the present invention is carried out scale easily and is expanded, and is easy to realize that modular system is integrated.
In the exemplary embodiment, secondary battery unit is that nominal voltage is the lead acid accumulator of 2V.Each elementary electric power storage pond group 300 (1), 300 (2) ... 300 (n) comprise 6 such lead acid accumulators.That is, each elementary electric power storage pond group provides the nominal voltage of 12V.
N is the positive integer more than or equal to 2, and the number of the secondary battery unit that it comprises with batteries is relevant with the number of the secondary battery unit that each elementary electric power storage pond group comprises.Comprise the situation of 24 secondary battery units for batteries, when each elementary electric power storage pond group for example comprised 4 secondary battery units, n equaled 6.In the exemplary embodiment, when each elementary electric power storage pond group for example comprised 6 secondary battery units respectively, n equaled 4, promptly has 4 elementary electric power storage pond groups 300 (1), 300 (2), 300 (3) and 300 (4).
In the exemplary embodiment, elementary electric power storage pond group 300 (1), 300 (2) ... Can be connected with the secondary equalizer through the bidirectional, dc contactor between 300 (4).In addition, each said elementary electric power storage pond group can further be connected in series to form secondary electric power storage pond group.
To since in the military applications some power cutoff device power consumption is not bigger, the present invention through bidirectional, dc contactor and one/secondary equalizer with secondary battery unit neatly connection in series-parallel connect, thereby realize that different electric depresses the big electric current output problem of different voltage batteries.
Charge-discharge modules 200 is used for elementary electric power storage pond group 300 (1), 300 (2) ... 300 (n) charging, and comprise and discharge and recharge submodule 200 (1), 200 (2) ... 200 (m).Each charging voltage that discharges and recharges submodule is different.When each elementary electric power storage pond group comprised 6 secondary battery units respectively, said elementary electric power storage pond group can provide the nominal voltage of 12V and the nominal voltage that secondary electric power storage pond group can provide 24V, 36V and 48V.Correspondingly, said charge-discharge modules 200 can comprise 12V, 24V, 36V, 48V bi-directional DC-DC rectification charge-discharge modules, that is, 4 (m=4) discharge and recharge submodule, thereby is used for the said primary and secondary electric power storage pond group of corresponding nominal voltage is charged.
In traditional series connection batteries, there is individual difference in the different batteries unit in the batteries, if this individual difference gets the brush-off, will cause the batteries service efficiency to reduce, and reduces the useful life of storage battery.Particularly; Each secondary battery unit is because the quality of storage battery is inequality; Little, the ropy accumulator voltage of capacity the situation that build-up of voltage is Duoed than another storage battery can occur after charging into same charge, if do not take measures, their voltage difference will increase; So that one of them storage battery reaches the safe voltage of regulation very soon, charging process also will be compelled to stop.Should stop the high storage battery of charging voltage this moment, promptly stops equalizing charge.Help the secondary battery unit that recovers impaired in the storage battery like this, charging process can successfully be carried out.According to the method for management of charging and discharging of the present invention, can solve these technical problems.
Describe method in detail below in conjunction with Fig. 2 according to management of charging and discharging of the present invention.
In first step, secondary battery unit is connected in series forms primary/secondary electric power storage pond group.24 secondary battery units are divided into 4 elementary electric power storage pond groups, and each elementary electric power storage pond group comprises 6 secondary battery units and therefore the nominal voltage of 12V is provided.In addition, said elementary electric power storage pond group is connected in series, thereby respectively 24V is provided, the secondary electric power storage pond group of the nominal voltage of 36V and 48V.
In second step, come detection of primary electric power storage pond group 300 (1), 300 (2) through current-voltage sampling circuit ... The terminal voltage of 300 (n).With the terminal voltage that detects relatively, judge the classification of storage battery and whether connect correct with theoretical value.Then detect the terminal voltage of each elementary electric power storage pond group, if the terminal voltage of elementary electric power storage pond group is not less than the 60-90% of the nominal voltage of said elementary electric power storage pond group, for example be not less than 9.5V, then 12V bi-directional DC-DC rectification charge-discharge modules is not worked.
If the terminal voltage of elementary electric power storage pond group less than 9.5V, is then explained storage battery over-discharge can once greater than 5V, for the elementary electric power storage pond group of terminal voltage in this scope, 12V bi-directional DC-DC rectification charge-discharge modules starts.For fear of excessive to the charge in batteries electric current, cause thermal runaway, through monitoring the terminal voltage of elementary electric power storage pond group, separately this elementary electric power storage pond group is carried out stable trickle charge, thereby activate storage battery.When trickle charge, can use the for example charge rate of C/15-C/10, preferably the charge rate of this trickle charge is C/12.In this trickle charge stage, the terminal voltage of elementary electric power storage pond group begins to rise.
In third step, when this elementary electric power storage pond group terminal voltage rises to the threshold value that can accept the boost charge charging, stop independent charging to this elementary electric power storage pond group.In the exemplary embodiment, this threshold value for example is the 85-95% of the nominal voltage of elementary electric power storage pond group, is preferably 11V.For the terminal voltage elementary electric power storage pond group in the 85-95% scope of the nominal voltage of elementary electric power storage pond group not; System starts 12V bi-directional DC-DC rectification charge-discharge modules automatically and adjusts one/secondary equalizer and two-way direct tentaculum; Thereby, make the terminal voltage of each elementary electric power storage pond group rise to the threshold value that to accept the boost charge charging with the circulating charging that distributes of respective primary electric power storage pond group.
In the 4th step, when the terminal voltage of elementary storage battery group reaches the threshold value that can accept the boost charge charging, when for example reaching 11V, with the saturation voltage of this elementary electric power storage pond group boost charge to this elementary electric power storage pond group.Alternatively, when the terminal voltage of all 4 elementary electric power storage pond groups all reaches the threshold value that can accept the boost charge charging, carry out above-mentioned boost charge.Replacedly, in the time of can reaching the threshold value that to accept the boost charge charging in the terminal voltage of each elementary electric power storage pond group, carry out above-mentioned boost charge immediately.
In the exemplary embodiment, the charge rate of said boost charge is 2C-10C, is preferably 5C.Said saturation voltage is preferably 13V than the high 5-25% of nominal voltage of this elementary electric power storage pond group.
When above-mentioned boost charge, must constantly detect following key technical index: whether whether the safe voltage that whether circuit occurs is opened circuit, whether battery unbalanced phenomena occurs, whether battery reaches regulation, battery too high, the battery of temperature satisfy-△ V or △ T/ △ t condition.Yet these technical indicators and monitoring method thereof are well known to those skilled in the art, and therefore are not described in detail at this.
In the 5th step, when nominal voltage is the said elementary electric power storage pond group of 12V when all being charged to its saturation voltage, 24V bi-directional DC-DC rectification charge-discharge modules starts, thereby is that the secondary electric power storage pond group of 24V is charged to nominal voltage.
According to being the similar mode of elementary electric power storage pond group of 12V with nominal voltage; Judge whether once over-discharge can of this secondary electric power storage pond group; And will this secondary electric power storage pond group trickle charge under the situation of over-discharge can once to the threshold voltage that can accept boost charge, then should secondary electric power storage pond group boost charge to saturation voltage.Similar with abovementioned steps, the charge rate of trickle charge can be C/15-C/10, is preferably C/12; The charge rate of boost charge can be 2C-10C, is preferably 5C; The threshold voltage that can accept boost charge is the 85-95% of the nominal voltage of secondary electric power storage pond group for example, is preferably 22V; And this saturation voltage is preferably 26V than the high 5-25% of nominal voltage of this secondary electric power storage pond group.
In the 6th step, when nominal voltage is the said secondary electric power storage pond group of 24V when all being charged to its saturation voltage, 36V bi-directional DC-DC rectification charge-discharge modules starts, thereby is that the secondary electric power storage pond group of 36V is charged to nominal voltage.
According to being the similar mode of primary/secondary electric power storage pond group of 12V, 24V with nominal voltage; Judge whether once over-discharge can of this secondary electric power storage pond group; And will this secondary electric power storage pond group trickle charge under the situation of over-discharge can once to the threshold voltage that can accept boost charge, then should secondary electric power storage pond group boost charge to saturation voltage.Similar with abovementioned steps, the charge rate of trickle charge can be C/15-C/10, is preferably C/12; The charge rate of boost charge can be 2C-10C, is preferably 5C; The threshold voltage that can accept boost charge is the 85-95% of the nominal voltage of secondary electric power storage pond group for example, is preferably 33V; And this saturation voltage is preferably 36.7V than the high 5-25% of nominal voltage of this secondary electric power storage pond group.
In the 7th step, when nominal voltage is the said secondary electric power storage pond group of 36V when all being charged to its saturation voltage, 48V bi-directional DC-DC rectification charge-discharge modules starts, thereby is that the secondary electric power storage pond group of 48V is charged to nominal voltage.
According to being the similar mode of primary/secondary electric power storage pond group of 12V, 24V with nominal voltage; Judge whether once over-discharge can of this secondary electric power storage pond group; And will this secondary electric power storage pond group trickle charge under the situation of over-discharge can once to the threshold voltage that can accept boost charge, then should secondary electric power storage pond group boost charge to saturation voltage.Similar with abovementioned steps, the charge rate of trickle charge can be C/15-C/10, is preferably C/12; The charge rate of boost charge can be 2C-10C, is preferably 5C; The threshold voltage that can accept boost charge is the 85-95% of the nominal voltage of secondary electric power storage pond group for example, is preferably 44V; And this saturation voltage is preferably 56.4V than the high 5-25% of nominal voltage of this secondary electric power storage pond group.
So far, the whole charging process of batteries 300 finishes.
According to above-mentioned preferred embodiment; The present invention is according to the elementary electric power storage of 12V pond group, 24V level electric power storage pond group, 36V level electric power storage pond group and the substep charging step by step of 48V level electric power storage pond group; Thereby solved the problem of cell batteries undercharge; Prevent that the part secondary battery unit from overcharging, and part secondary battery unit undercharge, and then realized that batteries is whole harmonious consistent.
When discharge; Real-time voltage and/or power demand according to load 400; Charging-discharging controller 500 dynamically matees the battery capacity (storage battery number) that discharges and recharges; Just the structure of conversion charge-discharge circuit of the present invention system dynamically selects corresponding elementary electric power storage pond group or secondary electric power storage pond group to load 400 direct direct current supplys, thereby realizes optimal discharge.
The balancing effect of batteries according to the present invention when design the time has taken into full account that the series connection batteries discharges and recharges can be advantageously applied to the control that discharges and recharges of series connection batteries, can improve the series connection batteries operating efficiency, prolong its useful life; Consider also that simultaneously this batteries mainly cooperates military not power cutoff device to use, and when it designs, also taken into full account the complexity and the particularity of military applications environment, thereby batteries of the present invention is with a wide range of applications aspect dual-use.
Embodiments of the invention also disclose a kind of system to the batteries management of charging and discharging, and said system comprises the charging-discharging controller that can operate with the method step of carrying out above-mentioned management of charging and discharging.The method step and the technique effect thereof of said management of charging and discharging are described in detail in the above-described embodiments, repeat no more at this.
Specific embodiment of the present invention disclosed herein, but should be appreciated that the disclosed embodiments only are exemplary embodiments of the present invention, and can come the concrete the present invention of realization according to various ways.Therefore, concrete structure disclosed herein and function detail should not be read as and limit the invention.Therefore, it all is possible carrying out many adjustment within the scope of the appended claims or improving, and said adjustment or improvement drop in the scope of the present invention that is limited appended claims.
Claims (23)
1. batteries that comprises a plurality of secondary battery units comprises: a plurality of elementary electric power storages pond group, each said elementary electric power storage pond group comprise the secondary battery unit of series connection more than two,
Wherein when the terminal voltage of each said a plurality of elementary electric power storages pond group was not less than first threshold voltage, this batteries was in first mode of operation, and this moment, said elementary electric power storage pond group was to electric; And
Wherein when the terminal voltage of at least one said a plurality of elementary electric power storages pond group is lower than said first threshold voltage; This batteries is in second mode of operation, and the elementary electric power storage pond group that this moment, terminal voltage was lower than first threshold voltage charges to the saturation voltage of this elementary electric power storage pond group.
2. batteries as claimed in claim 1, wherein two the above elementary electric power storage pond groups are connected in series and form secondary electric power storage pond group.
3. batteries as claimed in claim 2, wherein under said first mode of operation, according to the voltage and/or the power demand of load, by elementary electric power storage pond group or secondary electric power storage pond group to load direct current supply.
4. batteries as claimed in claim 2; Wherein under said second mode of operation; After elementary electric power storage pond group charges to the saturation voltage of said elementary electric power storage pond group, secondary electric power storage pond group is charged to the saturation voltage of said secondary electric power storage pond group.
5. batteries as claimed in claim 4, wherein said elementary electric power storage pond group and secondary electric power storage pond group are respectively by charging with the corresponding charge-discharge modules of its nominal voltage.
6. batteries as claimed in claim 1; Wherein under said second mode of operation; The elementary electric power storage pond group that terminal voltage is lower than first threshold voltage charges to second threshold voltage with first charge rate, then charges to the saturation voltage of this elementary electric power storage pond group with second charge rate.
7. batteries as claimed in claim 6, wherein under said second mode of operation, said first charge rate is C/15-C/10, and said second charge rate is 2C-10C.
8. batteries as claimed in claim 6, wherein said first threshold voltage are the 60-90% of nominal voltage, and said second threshold voltage is the 85-95% of nominal voltage, and said saturation voltage is than the high 5-25% of nominal voltage.
9. like any described batteries among the claim 1-8, the number of wherein said secondary battery unit is 24, and wherein each said elementary electric power storage pond group comprises 2,3,4,6,8 or 12 secondary battery units.
10. batteries as claimed in claim 5, wherein each said elementary electric power storage pond group comprises 6 secondary battery units, and wherein said charge-discharge modules comprises 12V, 24V, 36V, four of 48V and discharges and recharges submodule.
11. like any described batteries among the claim 1-8, wherein said secondary battery unit is a lead acid accumulator.
12. the method to the batteries management of charging and discharging that comprises a plurality of secondary battery units, this batteries comprises a plurality of elementary electric power storages pond group, and each said elementary electric power storage pond group comprises the secondary battery unit of series connection more than two, and said method comprises:
When the terminal voltage of each said a plurality of elementary electric power storages pond group is not less than first threshold voltage, make said batteries be in first mode of operation, be used for said elementary electric power storage pond group to electric this moment; And
When the terminal voltage of at least one said a plurality of elementary electric power storages pond group is lower than said first threshold voltage; Make said batteries be in second mode of operation, the elementary electric power storage pond group that be lower than first threshold voltage with terminal voltage this moment charges to the saturation voltage of this elementary electric power storage pond group.
13. method as claimed in claim 12, wherein two the above elementary electric power storage pond groups are connected in series and form secondary electric power storage pond group.
14. method as claimed in claim 13, wherein under said first mode of operation, according to the voltage and/or the power demand of load, by elementary electric power storage pond group or secondary electric power storage pond group to load direct current supply.
15. method as claimed in claim 13 wherein under said second mode of operation, after elementary electric power storage pond group charges to the saturation voltage of said elementary electric power storage pond group, charges to secondary electric power storage pond group the saturation voltage of said secondary electric power storage pond group.
16. method as claimed in claim 15, wherein said elementary electric power storage pond group and secondary electric power storage pond group are respectively by charging with the corresponding charge-discharge modules of its nominal voltage.
17. method as claimed in claim 12; Wherein under said second mode of operation; The elementary electric power storage pond group that makes terminal voltage be lower than first threshold voltage charges to second threshold voltage with first charge rate, then charges to the saturation voltage of this elementary electric power storage pond group with second charge rate.
18. method as claimed in claim 17 wherein under said second mode of operation, is used first charge rate of C/15-C/10 and second charge rate of 2C-10C.
19. method as claimed in claim 17, wherein said first threshold voltage are the 60-90% of nominal voltage, said second threshold voltage is the 85-95% of nominal voltage, and said saturation voltage is than the high 5-25% of nominal voltage.
20. like any described method among the claim 12-19, the number of wherein said secondary battery unit is 24, and wherein each said elementary electric power storage pond group comprises 2,3,4,6,8 or 12 secondary battery units.
21. batteries as claimed in claim 16, wherein each said elementary electric power storage pond group comprises 6 secondary battery units, and wherein said charge-discharge modules comprises 12V, 24V, 36V, four of 48V and discharges and recharges submodule.
22. like any described method among the claim 12-19, wherein said secondary battery unit is a lead acid accumulator.
23. system to the batteries management of charging and discharging that comprises a plurality of secondary battery units; This batteries comprises a plurality of elementary electric power storages pond group; Each said elementary electric power storage pond group comprises the secondary battery unit of series connection more than two, and said system comprises can operate to carry out the charging-discharging controller of following step:
When the terminal voltage of each said a plurality of elementary electric power storages pond group is not less than first threshold voltage, make said batteries be in first mode of operation, be used for said elementary electric power storage pond group to electric this moment; And
When the terminal voltage of at least one said a plurality of elementary electric power storages pond group is lower than said first threshold voltage; Make said batteries be in second mode of operation, the elementary electric power storage pond group that be lower than first threshold voltage with terminal voltage this moment charges to the saturation voltage of this elementary electric power storage pond group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110144078.7A CN102810698B (en) | 2011-05-31 | 2011-05-31 | Storage battery pack, and method and system for storage battery pack charge and discharge management |
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| CN201110144078.7A CN102810698B (en) | 2011-05-31 | 2011-05-31 | Storage battery pack, and method and system for storage battery pack charge and discharge management |
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| CN102810698A true CN102810698A (en) | 2012-12-05 |
| CN102810698B CN102810698B (en) | 2014-11-26 |
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| CN201110144078.7A Active CN102810698B (en) | 2011-05-31 | 2011-05-31 | Storage battery pack, and method and system for storage battery pack charge and discharge management |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247814A (en) * | 2013-05-14 | 2013-08-14 | 大连融科储能技术发展有限公司 | Leakage protection method and system of redox flow cell system as well as redox flow cell system |
| CN104393644A (en) * | 2014-11-27 | 2015-03-04 | 南车株洲电力机车有限公司 | Energy storage system voltage balance control method and system and voltage balance modules |
| CN105244554A (en) * | 2015-06-30 | 2016-01-13 | 惠州市亿能电子有限公司 | Determining method for equalizing current value matched with power battery system |
| WO2018032409A1 (en) * | 2016-08-17 | 2018-02-22 | 大连融科储能技术发展有限公司 | Flow battery system and large scale flow battery energy storage device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101764417A (en) * | 2009-05-19 | 2010-06-30 | 甘肃卓越电子科技有限公司 | Intelligent adaptive charge management device for lithium polymer storage battery and control system thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101764417A (en) * | 2009-05-19 | 2010-06-30 | 甘肃卓越电子科技有限公司 | Intelligent adaptive charge management device for lithium polymer storage battery and control system thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247814A (en) * | 2013-05-14 | 2013-08-14 | 大连融科储能技术发展有限公司 | Leakage protection method and system of redox flow cell system as well as redox flow cell system |
| CN104393644A (en) * | 2014-11-27 | 2015-03-04 | 南车株洲电力机车有限公司 | Energy storage system voltage balance control method and system and voltage balance modules |
| CN105244554A (en) * | 2015-06-30 | 2016-01-13 | 惠州市亿能电子有限公司 | Determining method for equalizing current value matched with power battery system |
| CN105244554B (en) * | 2015-06-30 | 2019-07-05 | 惠州市亿能电子有限公司 | It is a kind of to determine method with the matched euqalizing current value of electrokinetic cell system |
| WO2018032409A1 (en) * | 2016-08-17 | 2018-02-22 | 大连融科储能技术发展有限公司 | Flow battery system and large scale flow battery energy storage device |
| US11705570B2 (en) | 2016-08-17 | 2023-07-18 | Dalian Rongkepower Co., Ltd | Flow battery system and large scale flow battery energy storage device |
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| Publication number | Publication date |
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| CN102810698B (en) | 2014-11-26 |
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