CN106100072A - A kind of low loss series Li-ion batteries piles electric quantity balancing circuit - Google Patents

A kind of low loss series Li-ion batteries piles electric quantity balancing circuit Download PDF

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Publication number
CN106100072A
CN106100072A CN201610686621.9A CN201610686621A CN106100072A CN 106100072 A CN106100072 A CN 106100072A CN 201610686621 A CN201610686621 A CN 201610686621A CN 106100072 A CN106100072 A CN 106100072A
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end points
electricity
battery cell
circuit
dbs
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CN106100072B (en
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魏业文
戴帅龙
刘国特
程江洲
黄悦华
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Hubei Yidian Electric Co.,Ltd.
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China Three Gorges University CTGU
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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
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge 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

Abstract

A kind of low loss series Li-ion batteries piles electric quantity balancing circuit unit, including binodal battery cell DBs and equalizing circuit EC0Two parts, binodal battery cell DBs is by two battery cell BHAnd BLConstitute, make battery cell BHThe most extremely end points ' 1 ', battery cell BLNegative pole be end points ' 3 ', and battery cell BHNegative pole and battery cell BLPositive pole be connected, junction is end points ' 2 '.Equalizing circuit EC0By two groups of semiconductor switch SHAnd DH、SLAnd DL, and inductance L0Composition, semiconductor switch SHAnd SLIt is respectively band anti-paralleled diode DHAnd DLField of electric force effect transistor MOSFET, semiconductor switch SHAnd SLGate pole be respectively end points a and b, SLDrain electrode be end points e, SHSource electrode be end points c, SHDrain electrode and SLSource electrode and inductance L0One end be connected, inductance L0The other end be end points d；The end points 1～3 of binodal battery cell DBs connects equalizing circuit EC respectively0C～e of end points.The present invention can be greatly promoted the safety of set of cells stable operation, is also beneficial to reduce cost of investment.

Description

A kind of low loss series Li-ion batteries piles electric quantity balancing circuit
Technical field
The present invention relates to a kind of Li-ion batteries piles circuit, particularly a kind of low loss series Li-ion batteries piles electricity is equal Weighing apparatus circuit.
Background technology
At present, lithium ion battery is widely used in the fields such as electric automobile, generation of electricity by new energy, stand-by power supply, and it has Power density is high, without memory, self discharge is few and the remarkable advantage such as lighter in weight.The voltage of monomer lithium ion battery and storage electricity Ability is the most relatively low, and the multiple series-parallel modes of general employing constitute set of cells, to obtain voltage and the capacity of required grade.Due to Different lithium ion chemistry or other speciality inconsistent, causes differing of a battery cell charging and discharging in series arm Cause, occur that percentage of batteries monomer overcharges or crosses the phenomenon put, set of cells can be caused time serious to cross thermic combustion, even explode.Therefore, Cascaded lithium ion batteries group electric quantity balancing problem is the safe and stable key issue with Effec-tive Function of relation battery.
Summary of the invention
The present invention proposes a kind of low loss series equalizing circuit of lithium ion battery pack, based on the real-time prison to each battery cell Survey, and respectively under charging, electric discharge and idle state, use the medium that inductance is deposited as electric energy, it is achieved each cell Dynamic equalization.Compared with prior art, above-mentioned equalizing circuit uses modularization management, and simple in construction, easy to control and electricity is equal It is zero loss on weighing apparatus procedural theory, it is possible to be greatly promoted the safety of set of cells stable operation, is also beneficial to reduce cost of investment.
The technical solution adopted in the present invention is:
A kind of low loss series Li-ion batteries piles electric quantity balancing circuit unit, including binodal battery cell DBs and equilibrium Circuit EC0Two parts, binodal battery cell DBs is by two battery cell BHAnd BLConstitute, make battery cell BHThe most extremely hold Point ' 1 ', battery cell BLNegative pole be end points ' 3 ', and battery cell BHNegative pole and battery cell BLPositive pole be connected, connect Place is end points ' 2 '.
Equalizing circuit EC0By two groups of semiconductor switch SHAnd DH、SLAnd DL, and inductance L0Composition, semiconductor switch SHAnd SL It is respectively band anti-paralleled diode DHAnd DLField of electric force effect transistor MOSFET, semiconductor switch SHAnd SLGate pole respectively For end points a and b, SLDrain electrode be end points e, SHSource electrode be end points c, SHDrain electrode and SLSource electrode and inductance L0One end phase Even, inductance L0The other end be end points d；
The end points 1～3 of binodal battery cell DBs connects equalizing circuit EC respectively0C～e of end points.
A kind of low loss series Li-ion batteries piles electric quantity balancing expanded circuit, comprises multiple equalizing circuit unit, specifically Extended mode is: first making equalizing circuit unit is 0 grade of expanded circuit, comprises one group of binodal battery cell DBs and equalizing circuit EC0；Then 1 grade of expanded circuit comprises two groups of 0 grade of expanded circuits and an equalizing circuit E C1, equalizing circuit EC1With equalizing circuit EC0Difference be that inductance is L1, by two the binodal battery cell DBs series connection in two groups of 0 grade of expanded circuits, junction point again with Equalizing circuit EC1D end points be connected, equalizing circuit EC1Middle c and e end points is just meeting aforementioned series connection binodal battery cell DBs respectively Pole and negative pole；......；
And so on, k level expanded circuit comprises two groups of k-1 level expanded circuits and an ECk, inductance is Lk, k-1 level extends Two groups of DBs series connection in circuit, junction point again with ECkD end be connected, ECkC and e end points connect aforementioned series connection DBs group respectively Positive pole and negative pole；…….
A kind of low loss series Li-ion batteries piles electric quantity balancing method, works as BHIn electricity higher than BLTime, with T for controlling In the cycle, control SHConducting, pulsewidth be DT, D be dutycycle, concrete balancing procedure is: under charged state, make BLPreferential charging, treats two Person's electricity quite makes SHIt is held off, recovers to charge normal；Under discharge condition, reduce BLDischarge capacity, made when the two electricity is suitable SHIt is held off, recovers regular picture；Under idle state, with reactor as medium, by BHMiddle part electricity is transferred to BLIn, treat The two electricity makes S time suitableHIt is held off, stops equilibrium.
A kind of low loss series Li-ion batteries piles electric quantity balancing method, works as BHMiddle electricity is less than BLTime, with T for controlling week Phase, control SLConducting, pulsewidth is DT (D is dutycycle), and concrete balancing procedure is: under charged state, make BHPreferential charging, treats two Person's electricity quite makes SLIt is held off, recovers to charge normal；Under discharge condition, reduce BHDischarge capacity, made when the two electricity is suitable SLIt is held off, recovers regular picture；Under idle state, with reactor as medium, by BLMiddle part electricity is transferred to BHIn, treat The two electricity makes S time suitableLIt is held off, stops equilibrium.
A kind of low loss series Li-ion batteries piles electric quantity balancing development method, under charging and idle state, by 0,1 ..., n Level circuit sequence equalizes step by step；In the discharged condition, for avoiding output voltage to drop, take limiter stage equalization, the most only carry out 0 ～j level circuit conditioning, the size of j is determined by voltage security fluctuation range.
A kind of low loss series Li-ion batteries piles electric quantity balancing development method, the order superlative degree is n level, the most altogether containing 2(n+1)Individual electricity Pond is monomer series-connected, and this series arm meets maximum output voltage requirement；In order to meet peak power requirement, need to be by this series connection of m group Branch circuit parallel connection.
One low loss series Li-ion batteries piles electric quantity balancing circuit of the present invention, for cascaded lithium ion batteries group electricity Equalization problem, it is provided that a kind of novel low-power consumption equalization scheme, compared with tradition equalizing circuit, its major advantage includes following Three aspects:
(1): using reactor transmission electric energy, do not produce any energy loss, system heat generation is few, and security reliability is high；
(2): equalizing circuit cellular construction is simple, circuit extension method is simple, is easily obtainable cascaded lithium ion batteries Group equilibrium expanded circuit, practicality is stronger；
(3): described equalizing circuit controls simple, and low cost, feasibility is stronger.
Accompanying drawing explanation
Fig. 1 (a) is the equalizing circuit element circuit figure of the present invention.
Fig. 1 (b) is the expanded circuit figure of the present invention.
Fig. 2 (a) is present invention balancing procedure figure in the charge state；
Fig. 2 (b) is present invention balancing procedure figure in the discharged condition；
Fig. 2 (c) is present invention balancing procedure figure in an idle state.
Fig. 3 (a) is the situation of change schematic diagram of battery electric quantity under the different on off states of the present invention, different operating state.
Fig. 3 (b) is the situation of change chart of battery electric quantity under the different on off states of the present invention, different operating state.
Fig. 4 is the k level expanded circuit balancing procedure flow chart of the present invention.
Detailed description of the invention
A kind of low loss series Li-ion batteries piles electric quantity balancing circuit, including equalizing circuit unit and equilibrium expanded circuit Two kinds, the latter is formed by the former superposition extension；For above two circuit, propose corresponding control method respectively.The most such as Under:
(1), equalizing circuit unit includes binodal battery cell DBs and equalizing circuit EC0Two parts, DBs is by two electricity Pond monomer BHAnd BLConstitute, make BHThe most extremely end points ' 1 ', BLNegative pole be end points ' 3 ', and BHNegative pole and BLPositive pole phase Even, junction is end points ' 2 '；EC0By two groups of semiconductor switch (SHAnd DH、SLAnd DL) and inductance (L0) composition, semiconductor switch (SHAnd SL) it is band anti-paralleled diode (DHAnd DL) field of electric force effect transistor (MOSFET), SHAnd SLGate pole be respectively end Point a and b, SLDrain electrode be end points e, SHSource electrode be end points c, SHDrain electrode and SLSource electrode and L0One end be connected, L0Another One end is end points d；DBs end points 1～3 connects EC respectively0End points c～e.
(2), equilibrium expanded circuit comprise multiple equalizing circuit unit, concrete extended mode is: first make equalizing circuit list Unit is 0 grade of expanded circuit, comprises one group of DBs+EC0；Then 1 grade of expanded circuit comprises two groups of 0 grade of expanded circuits and an EC1, EC1 With EC0Difference be that inductance is L1, by two DBs series connection in two groups of 0 grade of expanded circuits, junction point again with EC1D end points It is connected, EC1Middle c and e end points connects positive pole and the negative pole of aforementioned series connection DBs respectively；......；As before, k level expanded circuit comprises two Group k-1 level expanded circuit and an ECk(inductance is Lk), the two groups of DBs series connection in k-1 level expanded circuit, junction point again with ECk D end be connected, ECkC and e end points connect positive pole and the negative pole of aforementioned series connection DBs group respectively；…….
(3), for circuit unit described in (1), B is worked asHIn electricity higher than BLTime, with T for controlling the cycle, control SHLead Logical, pulsewidth is DT (D is dutycycle), and concrete balancing procedure is: under charged state, make BLPreferential charging, treats that the two electricity is suitable Make SHIt is held off, recovers to charge normal；Under discharge condition, reduce BLDischarge capacity, makes S when the two electricity is suitableHKeep closing Disconnected, recover regular picture；Under idle state, with reactor as medium, by BHMiddle part electricity is transferred to BLIn, treat the two electricity S is made time quiteHIt is held off, stops equilibrium.
(4), for circuit unit described in (1), B is worked asHMiddle electricity is less than BLTime, with T for controlling the cycle, control SLConducting, Pulsewidth is DT (D is dutycycle), and concrete balancing procedure is: under charged state, make BHPreferential charging, treats that the two electricity quite makes SL It is held off, recovers to charge normal；Under discharge condition, reduce BHDischarge capacity, makes S when the two electricity is suitableLIt is held off, extensive Multiple regular picture；Under idle state, with reactor as medium, by BLMiddle part electricity is transferred to BHIn, when the two electricity is suitable Make SLIt is held off, stops equilibrium.
(5), for described in (2) equalize expanded circuit, charging and idle state under, by 0,1 ..., n level circuit sequence by Level equilibrium, for k level circuit, detailed process is: work as BHIn electricity higher than BLTime, with T for controlling the cycle, control SHConducting, arteries and veins A width of DT (D is dutycycle), under charged state so that it is in BLPreferential charging, the most afterwards makes S until the two electricityHIt is held off, Recover to charge normal or enter k+1 level circuit conditioning；Under idle state, with reactor as medium, by BHMiddle part electricity shifts To BLIn, when the two electricity is suitable, make SHIt is held off, stops equilibrium, enter k+1 level circuit conditioning；In the discharged condition, for Avoiding output voltage to drop, take limiter stage equalization, the most only carry out 0～j level circuit conditioning, the size of j is by voltage security ripple Dynamic scope determines, for k level circuit, detailed process is: work as BHIn electricity higher than BLTime, with T for controlling the cycle, control SHLead Logical, pulsewidth is DT (D is dutycycle), reduces wherein BLDischarge capacity, makes S when the two electricity is suitableHIt is held off, recovers normal Electric discharge or entrance k+1 level circuit conditioning.
(6) the equilibrium expanded circuit, in above-mentioned (2), order superlative degree is n level, contains 2 the most altogether(n+1)Individual battery cell is connected, should Series arm meets maximum output voltage requirement；In order to meet peak power requirement, need to be by parallel for this series arm of m group.
Operation principle:
A kind of low loss series equalizing circuit of lithium ion battery pack that the present invention proposes, as shown in Fig. 1 (a), for equilibrium electricity Road element circuit figure, as shown in Fig. 1 (b), for expanded circuit structure chart.Equalizing circuit unit includes that binodal set of cells DBs is with equal Weighing apparatus circuit EC0, DBs is by battery cell BHAnd BLIn series, BHThe most extremely end points 1, BLNegative pole be end points 2, the two connect Point is end points 3；EC0By two groups of MOSFET (S containing anti-paralleled diodeHAnd DH、SLAnd DL) and inductance L0Composition, SHAnd SLDoor Pole is respectively end points a and b, SLDrain electrode be end points e, SHSource electrode be end points c, SHDrain electrode and SLSource electrode and L0One end phase Even, L0The other end be end points d；DBs end points 1～3 connects EC respectively0End points c～e.
Consider the work process of equalizing circuit unit, be divided into Q by two electric quantity of single batteries relationsBH>QBLAnd QBH<QBLTwo kinds Situation, Fig. 2 (a)～Fig. 2 (c) respectively show at charging, the balancing procedure that discharges and leave unused under three kinds of states, Fig. 3 (a)～ Fig. 3 (b) is under different on off state different operating state, and the situation of change of battery electric quantity is specifically described as follows:
Work as QBH>QBLTime, control SHTurn on pulsewidth DT (as dutycycle, T is the control cycle to D), if charging current is ICS, Reactor current is IL, load current is ILoad, cell electric current is IBHAnd IBL, balancing procedure during different operating state For: under charged state, as shown in Fig. 2 (a), SHConducting, makes IBH=0 and IBL=ICS=IL, SHTurn off, make IBH=ICSAnd IBL= IBH+IL, it is seen that BLCharge volume within a cycle is more than BH, after a period of time, the two electricity is suitable, EC0Quit work；Put Under electricity condition, as shown in Fig. 2 (b), SHConducting, makes IBL=ILoadAnd IBH=IBL+IL, SHTurn off, make IBH=ILoadAnd IBL=IBH- IL, it is seen that BLDischarge capacity within a cycle is less than BH, after a period of time, the two electricity is suitable, EC0Quit work；Idle shape Under state, as shown in Fig. 2 (c), SHConducting, makes IBL=0 and IBH=IL, SHTurn off, make IBH=0 and IBL=IL, it is seen that BHIn portion Electricity is divided to transfer to B through inductanceL, until the two electricity quite after, EC0Quit work.
Work as QBH<QBLTime, control SLTurn on pulsewidth DT (as dutycycle, T is the control cycle to D), if charging current is ICS, Reactor current is IL, load current is ILoad, cell electric current is IBHAnd IBL, balancing procedure during different operating state For: under charged state, as shown in Fig. 2 (a), SLConducting, makes IBL=0 and IBH=ICS=IL, SLTurn off, make IBL=ICSAnd IBH= IBL+IL, it is seen that BHCharge volume within a cycle is more than BL, after a period of time, the two electricity is suitable, EC0Quit work；Put Under electricity condition, as shown in Fig. 2 (b), SLConducting, makes IBH=ILoadAnd IBL=IBH+IL, SLTurn off, make IBL=ILoadAnd IBH=IBL- IL, it is seen that BHDischarge capacity within a cycle is less than BL, after a period of time, the two electricity is suitable, EC0Quit work；Idle shape Under state, as shown in Fig. 2 (c), SLConducting, makes IBH=0 and IBL=IL, SLTurn off, make IBL=0 and IBH=IL, it is seen that BLIn portion Electricity is divided to transfer to B through inductanceH, until the two electricity quite after, EC0Quit work.
In sum, the basic ideas of this balancing procedure are: during charging, preferentially to the battery charging that electricity is low, treat the two Electricity stops equilibrium the most afterwards, jointly charges；During electric discharge, preferentially make the battery discharge that electricity is high, stop the most afterwards until the two electricity Only equilibrium, discharges jointly；Time idle, part electricity is passed to, by inductance, the battery that electricity is low by the battery that electricity is high；Ignore Line resistance, due to inductance not consumed energy, so this equalizing circuit can realize zero loss in theory.
Considering further that the work process of equilibrium expanded circuit, its equalization methods is roughly the same with above-mentioned basic ideas, expands with k level As a example by exhibition circuit, it comprises an ECkWith two k-1 level expanded circuits, as shown in the theory diagram of Fig. 1 (b), contrast equilibrium electricity Road unit, ECkEC can be regarded as0, two k-1 level expanded circuits can regard B asHAnd BL；Under charging and idle state, k level extension electricity Road is just the same with the balancing procedure of 0 grade of expanded circuit, and concrete steps are as shown in Figure 4；In the discharged condition, for avoiding output electricity Pressure is dropped, and takes limiter stage equalization, the most only carries out 0～j level circuit conditioning (or the n=j in Fig. 4), and the size of j is pacified by voltage Full fluctuation range determines, if scope range of the fluctuation of voltage is 8V, each monomer battery voltage is 1V, then j desirable 3.

Claims (6)

1. a low loss series Li-ion batteries piles electric quantity balancing circuit unit, it is characterised in that: include binodal battery cell And equalizing circuit (EC (DBs)0) two parts, binodal battery cell (DBs) is by two battery cell BHAnd BLConstitute, make battery Monomer BHThe most extremely end points ' 1 ', battery cell BLNegative pole be end points ' 3 ', and battery cell BHNegative pole and battery cell BL Positive pole be connected, junction is end points ' 2 '；
Equalizing circuit (EC0) by two groups of semiconductor switch SHAnd DH、SLAnd DL, and inductance L0Composition, semiconductor switch SHAnd SLPoint Wei band anti-paralleled diode DHAnd DLField of electric force effect transistor MOSFET, semiconductor switch SHAnd SLGate pole be respectively End points a and b, SLDrain electrode be end points e, SHSource electrode be end points c, SHDrain electrode and SLSource electrode and inductance L0One end be connected, Inductance L0The other end be end points d；
The end points 1～3 of binodal battery cell (DBs) connects equalizing circuit (EC respectively0) c～e of end points.
2. a low loss series Li-ion batteries piles electric quantity balancing expanded circuit, it is characterised in that: comprise multiple as right want Seeking the equalizing circuit unit described in 1, extended mode is: first making equalizing circuit unit is 0 grade of expanded circuit, comprises one group of binodal Battery cell DBs and equalizing circuit EC0；
Then 1 grade of expanded circuit comprises two groups of 0 grade of expanded circuits and an equalizing circuit EC1, equalizing circuit EC1With equalizing circuit EC0 Difference be that inductance is L1, by two the binodal battery cell DBs series connection in two groups of 0 grade of expanded circuits, junction point again with all Weighing apparatus circuit EC1D end points be connected, equalizing circuit EC1Middle c and e end points connects the positive pole of aforementioned series connection binodal battery cell DBs respectively And negative pole；......；
And so on, k level expanded circuit comprises two groups of k-1 level expanded circuits and an ECk, inductance is Lk, k-1 level expanded circuit In two groups of DBs series connection, junction point again with ECkD end be connected, ECkC and e end points connect the positive pole of aforementioned series connection DBs group respectively And negative pole；…….
3. use the set of cells electricity of a kind of low loss series Li-ion batteries piles electric quantity balancing circuit unit as claimed in claim 1 Amount equalization methods, it is characterised in that: work as BHIn electricity higher than BLTime, with T for controlling the cycle, control SHConducting, pulsewidth is DT, D For dutycycle, concrete balancing procedure is: under charged state, make BLPreferential charging, treats that the two electricity quite makes SHIt is held off, extensive Charge normal again；Under discharge condition, reduce BLDischarge capacity, makes S when the two electricity is suitableHIt is held off, recovers regular picture； Under idle state, with reactor as medium, by BHMiddle part electricity is transferred to BLIn, when the two electricity is suitable, make SHKeep closing Disconnected, stop equilibrium.
4. use the set of cells electricity of a kind of low loss series Li-ion batteries piles electric quantity balancing circuit unit as claimed in claim 1 Amount equalization methods, it is characterised in that: work as BHMiddle electricity is less than BLTime, with T for controlling the cycle, control SLConducting, pulsewidth is that (D is DT Dutycycle), concrete balancing procedure is: under charged state, make BHPreferential charging, treats that the two electricity quite makes SLIt is held off, recovers Charge normal；Under discharge condition, reduce BHDischarge capacity, makes S when the two electricity is suitableLIt is held off, recovers regular picture；Not busy Under configuration state, with reactor as medium, by BLMiddle part electricity is transferred to BHIn, when the two electricity is suitable, make SLIt is held off, Stop equilibrium.
5. use the set of cells electricity of a kind of low loss series Li-ion batteries piles electric quantity balancing expanded circuit as claimed in claim 2 Amount equilibrium extended method, it is characterised in that: under charging and idle state, by 0,1 ..., n level circuit sequence equalizes step by step；Putting Under electricity condition, for avoiding output voltage to drop, take limiter stage equalization, the most only carry out 0～j level circuit conditioning, the size of j by Voltage security fluctuation range determines.
6. use the set of cells electricity of a kind of low loss series Li-ion batteries piles electric quantity balancing expanded circuit as claimed in claim 2 Amount equilibrium extended method, it is characterised in that: the order superlative degree is n level, the most altogether containing 2(n+1)Individual battery cell is connected, and this series arm is full Foot maximum output voltage requirement；In order to meet peak power requirement, need to be by parallel for this series arm of m group.
CN201610686621.9A 2016-08-17 2016-08-17 A kind of low loss series Li-ion batteries piles electric quantity balancing circuit Active CN106100072B (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN110323803A (en) * 2019-06-21 2019-10-11 三峡大学 A kind of multiphase interleaved converter suitable for cascaded lithium ion batteries group
CN111064248A (en) * 2019-12-24 2020-04-24 湖州师范学院 Balanced control circuit of series lithium ion battery pack
CN113629814A (en) * 2021-08-13 2021-11-09 傲普(上海)新能源有限公司 Battery voltage equalization circuit, method and device and energy storage system

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CN105140998A (en) * 2015-09-14 2015-12-09 华南理工大学 Bidirectional lossless equalization circuit of series battery pack based on inductive energy storage
CN105162200A (en) * 2015-09-15 2015-12-16 华南理工大学 Layered battery pack balancing circuit
CN105529777A (en) * 2016-01-28 2016-04-27 华南理工大学 2n battery pack equalizing circuit easy to expand
CN205911798U (en) * 2016-08-17 2017-01-25 三峡大学 Electric quantity equalizer circuit of low -loss series connection lithium ion battery group unit and expander circuit thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1489236A (en) * 2003-09-05 2004-04-14 北京交通大学 Automatic balancing device for series storage battery
CN105140998A (en) * 2015-09-14 2015-12-09 华南理工大学 Bidirectional lossless equalization circuit of series battery pack based on inductive energy storage
CN105162200A (en) * 2015-09-15 2015-12-16 华南理工大学 Layered battery pack balancing circuit
CN105529777A (en) * 2016-01-28 2016-04-27 华南理工大学 2n battery pack equalizing circuit easy to expand
CN205911798U (en) * 2016-08-17 2017-01-25 三峡大学 Electric quantity equalizer circuit of low -loss series connection lithium ion battery group unit and expander circuit thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110323803A (en) * 2019-06-21 2019-10-11 三峡大学 A kind of multiphase interleaved converter suitable for cascaded lithium ion batteries group
CN111064248A (en) * 2019-12-24 2020-04-24 湖州师范学院 Balanced control circuit of series lithium ion battery pack
CN113629814A (en) * 2021-08-13 2021-11-09 傲普(上海)新能源有限公司 Battery voltage equalization circuit, method and device and energy storage system
CN113629814B (en) * 2021-08-13 2023-05-02 傲普(上海)新能源有限公司 Battery voltage equalization circuit, method and device and energy storage system

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