CN106953391A - Battery pack parallel charge-discharge device and charge/discharge control method - Google Patents

Battery pack parallel charge-discharge device and charge/discharge control method Download PDF

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Publication number
CN106953391A
CN106953391A CN201710322246.4A CN201710322246A CN106953391A CN 106953391 A CN106953391 A CN 106953391A CN 201710322246 A CN201710322246 A CN 201710322246A CN 106953391 A CN106953391 A CN 106953391A
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CN
China
Prior art keywords
parallel
battery pack
branch
discharge
switch
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Pending
Application number
CN201710322246.4A
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Chinese (zh)
Inventor
张思文
周实
陆宇
王子健
孙华
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Shanghai Electric Group Corp
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Shanghai Electric Group Corp
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Priority to CN201710322246.4A priority Critical patent/CN106953391A/en
Publication of CN106953391A publication Critical patent/CN106953391A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014Circuits for equalisation of charge between batteries
    • H02J7/0016Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H02J2007/0067Discharge management, i.e. discharge current reduction at low state of charge, sequential battery discharge in systems with a plurality of battery

Abstract

The invention discloses a kind of battery pack parallel charge-discharge device and charge/discharge control method, wherein battery pack parallel charge-discharge device includes controller and multiple parallel branches, it is connected in parallel between the multiple parallel branch, each parallel branch includes the battery pack being connected in series and at least balanced sub-circuit of two-stage, and the balanced sub-circuit includes the equalizing resistance and equalizer switch being connected in parallel;The controller is used to obtain the electric current of every parallel branch and calculates the average current of all parallel branches, the closure of equalizer switch and disconnection according to the electric current of every parallel branch and the Average Current Control.The battery pack parallel charge-discharge device and charge/discharge control method that the present invention is provided can effectively between balanced parallel branch electric current, suppress the circulation between parallel branch, ensure all parallel branches while all branch roads can be completely filled with when charging, so as to improve life-span and the performance of battery pack.

Description

Battery pack parallel charge-discharge device and charge/discharge control method
Technical field
The present invention relates to energy storage and electrokinetic cell parallel control technology field, more particularly to a kind of battery pack parallel charge-discharge Device and charge/discharge control method.
Background technology
Limited by cell manufacture level and technique, the lithium battery pack in current energy-storage system and electric automobile is most Using multiple branch circuit battery pack form in parallel, to meet the capacity and performance requirement of energy-storage system and electric automobile.With system The increase of scale, battery pack parallel branch number is more and more, it is in parallel after battery pack between due to cell voltage, internal resistance, put certainly The phenomenon of current-unbalance occurs in the parameter differences such as electric rate, can produce electric current circulation when serious between branch road, have a strong impact on energy storage System lifetim and performance, and there is potential safety hazard.Further, battery pack in parallel charging when occur certain branch road be full of and The situation of other branch road electricity also underfills, if now continuing to charge, safety problem may occur for the branch road being full of, and influence The service life of system.
There is successively charging of the switch realization to batteries in parallel connection group by being connected in branched battery group in the prior art, keep away Exempt from the circulation between battery pack, but the battery pack that can not be connected in parallel to multiple branch circuit is charged and suppresses circulation simultaneously.Separately Outside, also have and euqalizing current control is carried out to parallel branch using equalizing resistance, but flow limited in one's ability.In addition, what is used is equal Weighing apparatus resistance belongs to loss-type device, can consume the energy of system, equalizing resistance is the smaller the better in principle, but equalizing resistance crosses I The purpose of balanced branch current can be unable to reach, equalizing resistance is excessive and can cause energy dissipation.
The content of the invention
The technical problem to be solved in the present invention is to overcome in battery pack in parallel to multiple branch circuit in the prior art each Flowed when road current imbalance and processing defect limited in one's ability there is provided a kind of electric current that can effectively between balanced branch road, protect Card charging when all branch roads can be full of so as to improve the service life of battery and the battery pack parallel charge-discharge device of performance and Charge/discharge control method.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of battery pack parallel charge-discharge device, its feature is, including controller and multiple parallel branches, the multiple It is connected in parallel between parallel branch, each parallel branch includes the battery pack being connected in series and at least balanced sub-circuit of two-stage, The balanced sub-circuit includes the equalizing resistance and equalizer switch being connected in parallel;The controller is used to obtain every parallel connection The electric current of branch road and the average current for calculating all parallel branches, according to the electric current of every parallel branch and the average electricity The closure of equalizer switch described in flow control and disconnection.
In this programme, each parallel branch includes the balanced sub-circuit of at least two-stage, and controller is according to the electricity of parallel branch The resistance for the equalizing resistance for needing to access can be precisely calculated in stream and average current, then by multi-stage equalizing in branch road The accurate flow equalizing function of the control realization of equalizer switch in circuit, finally efficiently solves current imbalance in each parallel branch Problem.
This programme can improve each equalizing resistance in the ability that flows, multi-stage equalizing sub-circuit by multi-stage equalizing sub-circuit Resistance it is relatively small, and then can reasonable balance flow the energy consumption that ability and equalizing resistance brought and waste.
It is preferred that the resistance of the equalizing resistance is equal to total resistance of the battery pack of place parallel branch.
It is preferred that each parallel branch also includes master switch, the master switch is connected company with the battery pack Connect, the controller is additionally operable to judge whether the parallel branch is full of, if then disconnecting the master switch.
In this programme, by being connected in each parallel branch, independent master switch can realize multiple parallel branches while entering Ensure that all parallel branches can be completely filled with while row charging, and then improve life-span and the performance of battery pack.
It is preferred that each parallel branch also includes loop current suppression circuit;The loop current suppression circuit and the battery Group is connected in series, and the charging that the loop current suppression circuit includes being connected in parallel suppresses branch road and electric discharge suppression branch road;The charging The charging that suppressing branch road includes being connected in series suppresses switch and charged to suppress diode, and the charging suppresses the electric conduction of diode Flow direction consistent with the charging current direction of the battery pack;The electric discharge that the electric discharge suppresses branch road and includes being connected in series suppresses to open Close and electric discharge suppresses diode, the electric discharge suppresses the conducting electric current direction of diode and the discharge current direction of the battery pack Unanimously;The controller is additionally operable to judge whether the battery pack parallel charge-discharge device is in charged state, if then closing The charging suppression, which switchs and disconnects the electric discharge, suppresses switch, suppresses to switch and close described put if otherwise disconnecting described charge Electricity suppresses switch.
In this programme, each parallel branch includes charging and suppresses branch road and discharge to suppress branch road, utilizes the unidirectional of diode On state characteristic and controller suppress switch to charging and electric discharge suppresses switch and is controlled, and can effectively suppress between parallel branch Electric current circulation.
It is preferred that all switches are relay.
The present invention also provides a kind of battery pack parallel charge-discharge control method, and its feature is that the battery pack parallel connection is filled Battery pack parallel charge-discharge device described in discharge control method usage right requirement 1, the battery pack parallel charge-discharge control Method comprises the following steps:
S1, it is upper electric when close all equalizer switches;
S2, the controller obtain the electric current of every parallel branch, calculate the average current of all parallel branches;
S3, the electric current of the parallel branch of the controller more every and the average current, according to comparative result and The computing the resistor value of equalizing resistance target resistance values to be accessed, equilibrium to be accessed is selected according to the target resistance values Circuit;
Equalizer switch corresponding to S4, the disconnection balanced sub-circuit to be accessed.
In this programme, each parallel branch includes the balanced sub-circuit of at least two-stage, and controller is according to the electricity of parallel branch Stream and average current can accurately calculate the resistance for the equalizing resistance for needing to access, then by multi-stage equalizing in branch road Being controlled for equalizer switch realizes accurate flow equalizing function in circuit, so as to solve asking for current imbalance in each parallel branch Topic.
This programme by multi-stage equalizing sub-circuit can effectively between balanced parallel branch electric current, it is to avoid parallel branch Between current unevenness when indivedual parallel branch excessively streams to battery pack cause damage, equalizing resistance institute band can also be reasonably controlled in addition The energy consumption come is wasted.
It is preferred that each parallel branch includes balanced sub-circuit described in two-stage, the resistance of the equalizing resistance is equal to In total resistance of the battery pack of place parallel branch, step S3:When the electric current of the parallel branch is more than or equal to described in twice When average current and the average current less than three times, balanced sub-circuit is used as the equilibrium to be accessed described in selection one-level Sub-circuit;When the electric current of the parallel branch is more than or equal to the average current of three times, balanced son electricity described in selection two-stage Road is used as the balanced sub-circuit to be accessed.
In this programme, by the electric current and the quantitative relation of average current of relatively more each parallel branch, can accurately it control Total resistance of the equalizing resistance of system access parallel branch, to reach the effect for the current value for effectively and reasonably reducing parallel branch Really, so that current difference between reducing parallel connection direct.
It is preferred that each parallel branch also includes master switch, the master switch is connected company with the battery pack Connect;Also closed during upper electricity in step S1 further comprising the steps of after the master switch, step S1:Judge the parallel branch Whether it is full of, if then disconnecting the master switch.
In this programme, by being connected in each parallel branch, independent master switch can effectively handle the branch being first full of Road, and then can realize in multiple parallel branches while while ensure that all parallel branches can be filled completely when being charged It is full, it is possible to increase the uniformity of battery pack, the final life-span for improving battery pack and performance.
It is preferred that each parallel branch also includes loop current suppression circuit;The loop current suppression circuit and the battery Group is connected in series, and the charging that the loop current suppression circuit includes being connected in parallel suppresses branch road and electric discharge suppression branch road;The charging The charging that suppressing branch road includes being connected in series suppresses switch and charged to suppress diode, and the charging suppresses the electric conduction of diode Flow direction consistent with the charging current direction of the battery pack;The electric discharge that the electric discharge suppresses branch road and includes being connected in series suppresses to open Close and electric discharge suppresses diode, the electric discharge suppresses the conducting electric current direction of diode and the discharge current direction of the battery pack Unanimously;It is further comprising the steps of after step S1:The controller judges whether the battery pack parallel charge-discharge device is in Charged state, suppresses to switch and disconnect the electric discharge suppression switch, if otherwise disconnecting the charging if then closing the charging Suppress to switch and close the electric discharge suppression switch.
In this programme, controller suppresses switch to charging and electric discharge suppresses to be turned off and closed control, can be right Battery pack that multiple branch circuit is connected in parallel carries out charging and the electric current circulation effectively between suppression parallel branch simultaneously, it is to avoid circulation The energy dissipation of generation, improves the efficiency for charge-discharge of battery pack.
It is preferred that all switches are relay.
The present invention positive effect be:Battery pack parallel charge-discharge device and charge and discharge control that the present invention is provided Method can effectively between balanced parallel branch electric current, suppress the circulation between parallel branch, it is ensured that all parallel branches are simultaneously All branch roads can be completely filled with during charging, so as to improve life-span and the performance of battery pack.
Brief description of the drawings
Fig. 1 is the schematic diagram of the battery pack parallel charge-discharge device of the embodiment of the present invention 1.
Fig. 2 is the flow chart of the battery pack parallel charge-discharge control method of the embodiment of the present invention 2.
Embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to described reality Apply among a scope.
Embodiment 1
As shown in figure 1, a kind of battery pack parallel charge-discharge device, including controller (not shown) and four branch in parallel It is connected in parallel between road 1, four parallel branches 1, each parallel branch 1 includes battery pack 101, the loop current suppression circuit being connected in series 102nd, the balanced sub-circuit 103 of two-stage and master switch 104.
Each equilibrium sub-circuit 103 includes the equalizing resistance 1031 and equalizer switch 1032 being connected in parallel, equalizing resistance 1031 resistance is equal to total resistance of the battery pack 101 of place parallel branch 1.
The charging that loop current suppression circuit 102 includes being connected in parallel suppresses branch road 1021 and electric discharge suppression branch road 1022.Charging The charging suppression switch 10211 that suppressing branch road 1021 includes being connected in series suppresses diode 10212 with charging, charges and suppresses two poles The conducting electric current direction of pipe 10212 is consistent with the charging current direction of battery pack 101.Electric discharge, which suppresses branch road 1022, includes series connection company The electric discharge connect suppresses switch 10221 and electric discharge suppresses diode 10222, and electric discharge suppresses the conducting electric current direction of diode 10222 It is consistent with the discharge current direction of battery pack 101.
In the present embodiment, all switches are relay.
In the present embodiment, controller is used to obtain the electric current of every parallel branch 1 and being averaged for four parallel branches 1 of calculating Electric current, according to the closure of the equalizer switch 1032 on the electric current of every parallel branch 1 and the Average Current Control parallel branch 1 with Disconnect.Controller is additionally operable to judge whether every parallel branch 1 is full of, if then disconnecting the master switch in the parallel branch 1 104.Controller is additionally operable to judge whether battery pack parallel charge-discharge device is in charged state, if then closing all chargings Suppress switch 10211 and disconnect all electric discharges suppression switches 10221, if otherwise disconnecting all chargings suppresses switch 10211 And close all electric discharges suppression switches 10221.
, can be effectively between balanced four parallel branches 1 by setting the balanced sub-circuit 103 of two-stage in the present embodiment Electric current, reduces four parallel branches, 1 current difference;Simultaneously by setting loop current suppression circuit 102 to each parallel branch 1, Diode in the circuit can effectively suppress 1 circulation of parallel branch.Pass through control energy of the controller to master switch 104 It is enough to ensure that all parallel branches 1 be completely filled with during charging, so as to improve life-span and the performance of battery pack.
It should be noted that, although the present embodiment use only the balanced sub-circuit 103 of two-stage, but for of the invention balanced Sub-circuit 103 can use multi-level, depending on application demand.
Embodiment 2
As shown in Fig. 2 a kind of battery pack parallel charge-discharge control method, the battery pack parallel charge-discharge control method is used The battery pack parallel charge-discharge device of embodiment 1, battery pack parallel charge-discharge control method comprises the following steps:
Step S101, it is upper electric when close all equalizer switches 1032 and master switch 104;
Step S102, judge battery pack parallel charge-discharge device whether be in charged state, if then perform step S103, If otherwise performing step S103 ';
Step S103, closure charging suppress switch 10211 and disconnect discharging to suppress switch 10221, perform step S104;
Step S103 ', disconnection charging suppress switch 10211 and close electric discharge suppression switch 10221, perform step S104 ';
Step S104, controller obtain the electric current of every parallel branch 1, calculate the average current of all parallel branches 1;
Step S105, controller judge whether the electric current of parallel branch 1 is more than or equal to twice of average current and less than three Times average current when, if then performing step S106, if otherwise performing step S107;
Step S106, the balanced sub-circuit 103 of selection one-level perform step S109 as balanced sub-circuit to be accessed;
Step S107, judge parallel branch 1 electric current whether be more than or equal to three times average current, if then performing step S108, if otherwise performing step S110;
Step S108, the balanced sub-circuit 103 of selection two-stage perform step S109 as balanced sub-circuit to be accessed;
Equalizer switch 1032 corresponding to step S109, disconnection balanced sub-circuit 103 to be accessed, performs step S110;
Step S110, judge whether parallel branch 1 is full of, if then performing step S111, if otherwise performing step S112;
The master switch 104 in parallel branch 1 that step S111, disconnection are full of, performs step S112;
Step S112, judge whether four parallel branches 1 are completely filled with, step S102 is performed if not, if performing step S113;
Step S104 ', controller obtain the electric current of every parallel branch 1, calculate the average current of all parallel branches 1, Perform step S105 ';
Step S105 ', controller judge whether the electric current of parallel branch 1 is more than or equal to twice of average current and less than three Times average current when, if then performing step S106 ', if otherwise performing step S107 ';
Step S106 ', the balanced sub-circuit 103 of selection one-level perform step S109 ' as balanced sub-circuit to be accessed;
Step S107 ', judge parallel branch 1 electric current whether be more than or equal to three times average current, if then performing step Rapid S108 ', if otherwise performing step S110 ';
Step S108 ', the balanced sub-circuit 103 of selection two-stage perform step S109 ' as balanced sub-circuit to be accessed;
Equalizer switch 1032 corresponding to step S109 ', disconnection balanced sub-circuit 103 to be accessed, performs step S110’;
Step S110 ', judge whether parallel branch 1 discharges and terminate, if then performing step S113;
Step S113, flow terminate.
In the present embodiment, the current balance function of electric current between four parallel branches can be realized by the balanced sub-circuit of two-stage, kept away Indivedual parallel branch excessively streams cause damage to battery pack when having exempted from current unevenness between parallel branch;Parallel connection is inhibited by diode Electric current circulation between branch road, it is to avoid the energy dissipation that circulation is produced, improves the efficiency for charge-discharge of battery pack.This battery pack is simultaneously Connection charge/discharge control method improves the uniformity of battery pack, improves the service life and security of battery pack.
Although the embodiment of the present invention is the foregoing described, it will be appreciated by those of skill in the art that this is only For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from On the premise of the principle and essence of the present invention, various changes or modifications can be made to these embodiments, but these changes and Modification each falls within protection scope of the present invention.

Claims (10)

1. a kind of battery pack parallel charge-discharge device, it is characterised in that including controller and multiple parallel branches, it is the multiple simultaneously It is connected in parallel between connection branch road, each parallel branch includes the battery pack being connected in series and at least balanced sub-circuit of two-stage, institute State equalizing resistance and equalizer switch that balanced sub-circuit includes being connected in parallel;
The controller is used to obtain the electric current of every parallel branch and calculates the average current of all parallel branches, according to The electric current of every parallel branch and the closure of equalizer switch and disconnection described in the Average Current Control.
2. battery pack parallel charge-discharge device as claimed in claim 1, it is characterised in that the resistance of the equalizing resistance is equal to Total resistance of the battery pack of place parallel branch.
3. battery pack parallel charge-discharge device as claimed in claim 1, it is characterised in that each parallel branch also includes Master switch, the master switch is connected in series with the battery pack, and the controller is additionally operable to judge that the parallel branch is It is no to be full of, if then disconnecting the master switch.
4. the battery pack parallel charge-discharge device as described in any one of claims 1 to 3, it is characterised in that each parallel connection Branch road also includes loop current suppression circuit;
The loop current suppression circuit is connected in series with the battery pack, and the loop current suppression circuit includes the charging suppression being connected in parallel Branch road processed and electric discharge suppress branch road;
The charging suppresses branch road and suppresses diode, the charging suppression two including the charging suppression switch being connected in series and charging The conducting electric current direction of pole pipe is consistent with the charging current direction of the battery pack;
The electric discharge suppresses branch road and suppresses diode, the electric discharge suppression two including the electric discharge suppression switch being connected in series and electric discharge The conducting electric current direction of pole pipe is consistent with the discharge current direction of the battery pack;
The controller is additionally operable to judge whether the battery pack parallel charge-discharge device is in charged state, if then closing institute State charging to suppress to switch and disconnect the electric discharge suppression switch, suppress to switch and close the electric discharge if otherwise disconnecting the charging Suppress switch.
5. battery pack parallel charge-discharge device as claimed in claim 4, it is characterised in that all switches are relay.
6. a kind of battery pack parallel charge-discharge control method, it is characterised in that the battery pack parallel charge-discharge control method makes With the battery pack parallel charge-discharge device described in claim 1, the battery pack parallel charge-discharge control method includes following step Suddenly:
S1, it is upper electric when close all equalizer switches;
S2, the controller obtain the electric current of every parallel branch, calculate the average current of all parallel branches;
S3, the electric current of the parallel branch of the controller more every and the average current, according to comparative result and described The computing the resistor value of equalizing resistance target resistance values to be accessed, equilibrium son electricity to be accessed is selected according to the target resistance values Road;
Equalizer switch corresponding to S4, the disconnection balanced sub-circuit to be accessed.
7. battery pack parallel charge-discharge control method as claimed in claim 6, it is characterised in that each parallel branch bag Balanced sub-circuit described in two-stage is included, the resistance of the equalizing resistance is equal to total resistance of the battery pack of place parallel branch, step In S3:
When the electric current of the parallel branch is more than or equal to twice of the average current and the average current less than three times, Balanced sub-circuit is used as the balanced sub-circuit to be accessed described in selection one-level;
When the electric current of the parallel branch is more than or equal to the average current of three times, balanced sub-circuit described in selection two-stage is made For the balanced sub-circuit to be accessed.
8. battery pack parallel charge-discharge control method as claimed in claim 6, it is characterised in that each parallel branch is also Including master switch, the master switch is connected in series with the battery pack;The master control is also closed in step S1 during upper electricity to open Close, it is further comprising the steps of after step S1:
Judge whether the parallel branch is full of, if then disconnecting the master switch.
9. the battery pack parallel charge-discharge control method as described in any one of claim 6 to 8, it is characterised in that each described Parallel branch also includes loop current suppression circuit;The loop current suppression circuit is connected in series with the battery pack, the loop current suppression The charging that circuit includes being connected in parallel suppresses branch road and electric discharge suppression branch road;The charging, which suppresses branch road, includes filling for being connected in series Electricity suppresses switch and charging suppresses diode, and the charging suppresses the conducting electric current direction of diode and the charging of the battery pack The sense of current is consistent;The electric discharge suppresses branch road and suppresses diode including the electric discharge suppression switch being connected in series and electric discharge, described The conducting electric current direction that electric discharge suppresses diode is consistent with the discharge current direction of the battery pack;
It is further comprising the steps of after step S1:
The controller judges whether the battery pack parallel charge-discharge device is in charged state, if then closing the charging Suppress switch and disconnect the suppression switch that discharges, opened if otherwise disconnecting the charging suppression switch and closing the suppression of discharging Close.
10. battery pack parallel charge-discharge control method as claimed in claim 9, it is characterised in that all switches are relay Device.
CN201710322246.4A 2017-05-09 2017-05-09 Battery pack parallel charge-discharge device and charge/discharge control method Pending CN106953391A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108599353A (en) * 2018-04-05 2018-09-28 宁波兆科新能源科技有限公司 A kind of parallel extended system of high pressure lithium battery energy storage battery cabinet
CN109599600A (en) * 2018-11-22 2019-04-09 天津飞博科技有限公司 A kind of constant current method for batteries in parallel connection group
CN109638913A (en) * 2018-12-20 2019-04-16 北京长城华冠汽车科技股份有限公司 A kind of balancer of electrokinetic cell system, method and electric car
CN111555387A (en) * 2020-05-12 2020-08-18 广东工业大学 Circulation-free optimization control method for reconfigurable battery pack
CN111934336A (en) * 2020-08-20 2020-11-13 电管家集团有限公司 Electric power energy storage control system
CN112134315A (en) * 2019-06-25 2020-12-25 比亚迪股份有限公司 Control system and control method of echelon battery
EP3734790A4 (en) * 2018-10-12 2021-01-13 Lg Chem, Ltd. Battery management device and method
CN112332526A (en) * 2020-10-27 2021-02-05 科华恒盛股份有限公司 Storage battery energy storage system and control method thereof
WO2021054892A1 (en) * 2019-09-20 2021-03-25 Grabtaxi Holdings Pte. Ltd Controller, electric power system comprising the controller, method of operating the system, and vehicle comprising the system
CN112636415A (en) * 2020-12-09 2021-04-09 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Multi-battery-pack parallel charging control method for single charging device
CN112636417A (en) * 2020-12-09 2021-04-09 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Storage battery set parallel charging current-sharing circuit structure
CN114552718A (en) * 2022-03-04 2022-05-27 福建时代星云科技有限公司 Multi-branch parallel energy storage system and charging and discharging method
EP3972073A4 (en) * 2019-06-13 2022-08-31 Huawei Tech Co Ltd Foldable electronic device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103606943A (en) * 2013-12-02 2014-02-26 深圳先进储能材料国家工程研究中心有限公司 Microgrid nickel-metal hydride battery energy storage system
CN103762635A (en) * 2014-01-09 2014-04-30 慈松 Electric current balancing method and system for multi-battery or multi-battery-pack parallel connection charging or discharging
CN104917224A (en) * 2015-03-31 2015-09-16 华南理工大学 Two-stage equalizing device of battery pack and control method thereof
CN106169619A (en) * 2015-05-18 2016-11-30 福特全球技术公司 Current balancing device for the batteries in parallel connection unit of electric vehicle
CN106329641A (en) * 2016-09-09 2017-01-11 苏州精控能源科技有限公司 Parallel connection battery pack charging, discharging control method and power battery system
CN206059499U (en) * 2016-09-28 2017-03-29 惠州市蓝微新源技术有限公司 Many cluster set of cells parallel systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103606943A (en) * 2013-12-02 2014-02-26 深圳先进储能材料国家工程研究中心有限公司 Microgrid nickel-metal hydride battery energy storage system
CN103762635A (en) * 2014-01-09 2014-04-30 慈松 Electric current balancing method and system for multi-battery or multi-battery-pack parallel connection charging or discharging
CN104917224A (en) * 2015-03-31 2015-09-16 华南理工大学 Two-stage equalizing device of battery pack and control method thereof
CN106169619A (en) * 2015-05-18 2016-11-30 福特全球技术公司 Current balancing device for the batteries in parallel connection unit of electric vehicle
CN106329641A (en) * 2016-09-09 2017-01-11 苏州精控能源科技有限公司 Parallel connection battery pack charging, discharging control method and power battery system
CN206059499U (en) * 2016-09-28 2017-03-29 惠州市蓝微新源技术有限公司 Many cluster set of cells parallel systems

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108599353A (en) * 2018-04-05 2018-09-28 宁波兆科新能源科技有限公司 A kind of parallel extended system of high pressure lithium battery energy storage battery cabinet
EP3734790A4 (en) * 2018-10-12 2021-01-13 Lg Chem, Ltd. Battery management device and method
US11476681B2 (en) 2018-10-12 2022-10-18 Lg Energy Solution, Ltd. Battery management apparatus and method
CN109599600A (en) * 2018-11-22 2019-04-09 天津飞博科技有限公司 A kind of constant current method for batteries in parallel connection group
CN109638913A (en) * 2018-12-20 2019-04-16 北京长城华冠汽车科技股份有限公司 A kind of balancer of electrokinetic cell system, method and electric car
EP3972073A4 (en) * 2019-06-13 2022-08-31 Huawei Tech Co Ltd Foldable electronic device
CN112134315A (en) * 2019-06-25 2020-12-25 比亚迪股份有限公司 Control system and control method of echelon battery
WO2021054892A1 (en) * 2019-09-20 2021-03-25 Grabtaxi Holdings Pte. Ltd Controller, electric power system comprising the controller, method of operating the system, and vehicle comprising the system
CN111555387A (en) * 2020-05-12 2020-08-18 广东工业大学 Circulation-free optimization control method for reconfigurable battery pack
CN111934336A (en) * 2020-08-20 2020-11-13 电管家集团有限公司 Electric power energy storage control system
CN112332526A (en) * 2020-10-27 2021-02-05 科华恒盛股份有限公司 Storage battery energy storage system and control method thereof
CN112636417A (en) * 2020-12-09 2021-04-09 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Storage battery set parallel charging current-sharing circuit structure
CN112636417B (en) * 2020-12-09 2022-07-29 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Storage battery parallel charging and current equalizing circuit structure
CN112636415B (en) * 2020-12-09 2022-07-29 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Multi-battery-pack parallel charging control method for single charging device
CN112636415A (en) * 2020-12-09 2021-04-09 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Multi-battery-pack parallel charging control method for single charging device
CN114552718A (en) * 2022-03-04 2022-05-27 福建时代星云科技有限公司 Multi-branch parallel energy storage system and charging and discharging method

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