CN109088112A - A kind of series-connected cell group modularization management system - Google Patents
A kind of series-connected cell group modularization management system Download PDFInfo
- Publication number
- CN109088112A CN109088112A CN201811056001.2A CN201811056001A CN109088112A CN 109088112 A CN109088112 A CN 109088112A CN 201811056001 A CN201811056001 A CN 201811056001A CN 109088112 A CN109088112 A CN 109088112A
- Authority
- CN
- China
- Prior art keywords
- battery
- single battery
- electricity
- equal
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
-
- 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
- H02J7/0018—Circuits for equalisation of charge between batteries using separate 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of series-connected cell management system of the present invention, including M series-connected cell managing device, it is configured to manage M series-connected cell group being made of N number of concatenated single battery accordingly, wherein each series-connected cell managing device includes, converter unit, it is electrically connected with multi-section serial single battery, is configured to the electricity for making electricity between adjacent and non-conterminous single battery allotment；Control unit is electrically connected with the converter unit, is configured to detect battery status, and controls the operating mode of the converter unit；And wireless communication unit, it is electrically connected with the control unit, is configured to communicate with external cell management master control system, to transmit battery detecting result and receive battery control signal；Wherein M and N is the integer more than or equal to 2, and the final section single battery of the P battery pack is also the first segment single battery of the P+1 battery pack, and wherein P is the integer more than or equal to 1 and less than or equal to M-1.
Description
Technical field
The present invention relates to technical field of battery management more particularly to a kind of series-connected cell group modularization management systems.
Background technique
When connecting to form battery pack using multiple single batteries, due to the inconsistency of cell capacity, add
Single battery environment temperature difference in use leads to the aggravation of this inconsistency, will cause in battery power discharge, when
When the smallest electric quantity of single batteries of capacity exhausts, even if other batteries, there are also be not available electricity；And in battery pack charging,
The smallest battery of electricity is first fully charged, even if there are also vacant capacities for other batteries, can not also recharge, so as to cause battery pack
Population size utilization rate reduces, it is therefore desirable to is managed using battery management system to all single batteries in battery pack.
It is directed to the research of battery management system (BATTERY MANAGEMENT SYSTEM, abbreviation BMS) at present, it is main to collect
In in electric vehicle engineering field, important tie of the automobile BMS as connection vehicle mounted dynamic battery group and electric car is main
Function includes: battery physical parameter real-time monitoring；Battery status estimation；Inline diagnosis and early warning；Charge and discharge and preliminary filling control；
Balanced management and heat management etc..
In terms of balanced management, traditional battery pack equilibrium management mode is broadly divided into two major classes: passive balanced and active
It is balanced.Passive balanced principle is energy consumption, and a controllable shunt resistance in parallel, works as battery usually on every single battery
When voltage is up to or over limitation Current Voltage, shunt resistance circuit is connected, reduces the charging current for flowing through single battery,
So that the voltage of single battery maintains within limits value, the electric energy for flowing through resistance is then discharged in the form of thermal energy.Actively
Balanced principle is energy transfer, it usually needs an electric pressure converter, when master controller detects that certain monomer battery voltage is inclined
The energy of the higher single battery of voltage is transferred on the single battery of low voltage by Gao Shi by converter, to reach electricity
The equilibrium of pressure and energy.
In practical application, since the circuit structure of passive balanced management is simple, it is easy to accomplish, it can accomplish single battery
Consistency is preferable, the management of battery thermal balance is preferable, cell pressure manages preferable application and generally uses passive balanced management
Method, typical application example be tesla's electric car in battery management.And single battery consistency is poor, battery
Thermal balance management is poor, and the inconsistent application of the mechanical stress that is subject to of single battery generally uses the pipe of active equalization
Reason method.
The more typical implementation of active equalization management method is to realize that the active of battery pack is equal using Switching Power Supply
Weighing apparatus, physical circuit design scheme need as shown in Figure 1, active equalization to realize N number of battery using 2 (N-1) a power switch
And (N-1) a inductance, while the charge and discharge of battery pack can only carry out between two adjacent single batteries.This active is equal
Weighing apparatus management is using unified management thinking, i.e., all single batteries are managed by the same active equalization module, to electricity
The management of pond group can not be split, when a single battery in battery pack or a component in management module go wrong
When, it needs to check all single batteries and all management module components one by one, the management and dimension of management system
It is very inconvenient to protect, and inefficiency.
Existing BMS not only makes system wiring complicated, but also work as and answer generally by the way of CAN bus transmission simultaneously
When for electric car, environmental factor in vehicle traveling process, the stability that can be transmitted to CAN bus be impacted, significantly
Reduce the stability and reliability of entire BMS.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of modular series-connected cell group modularization management system.
This application provides a kind of series-connected cell management system, including M series-connected cell managing device, it is configured to corresponding
M series-connected cell group being made of N number of concatenated single battery is managed, wherein each series-connected cell managing device includes,
Converter unit is electrically connected with multi-section serial single battery, be configured to make electricity adjacent and non-conterminous single battery it
Between electricity allotment；Control unit is electrically connected with the converter unit, is configured to detect battery status, and controls institute
State the operating mode of converter unit；And wireless communication unit, it is electrically connected with the control unit, is configured to and external cell pipe
Master control system communication is managed, to transmit battery detecting result and receive battery control signal；Wherein M and N is whole more than or equal to 2
Number, the final section single battery of the P battery pack is also the first segment single battery of the P+1 battery pack, wherein P for greater than
Integer equal to 1 and less than or equal to M-1.
It particularly, include battery pack in the wireless communication unit and the Content of Communication of external cell management master control system
And/or the address information and/or check information of single battery.
Particularly, the battery status includes at least voltage, electric current, electricity, and/or temperature information.
Particularly, the wireless communication unit in each cell managing device is additionally configured to and other cell managing devices
In wireless communication unit communication.
Particularly, the converter unit of each cell managing device includes switch block, be configured to control with it is more
Section single battery corresponds to the closed state in a plurality of circuit；And charge and discharge and transformation component, be configured to operate in charging, electric discharge or
Transformation mode, to realize that the electricity between adjacent and non-conterminous single battery is deployed.
Particularly, the more piece single battery includes 2n section single battery, and the corresponding switch block includes 2n and opens
It closes, is configured to control the closed state of cell circuit corresponding with 2n section single battery respectively；And the charge and discharge are simultaneous
Transformation component includes n equivalent inductance, and any two in the n equivalent inductance are connected electrically in the electricity not adjacent to each other
In the circuit of pond；Wherein N=M* (2n-1)+1, n is the integer more than or equal to 2.
Particularly, the 2n switch is 2n transistor, and the control electrode of each transistor is all electronically connected to described
First pole of control unit, each transistor is electrically connected to the anode of corresponding single battery, and the second pole is electrically connected to institute
The cathode of single battery is stated, the second pole of x-th of transistor is electrically connected to the first pole of (x+1)th transistor；Any n
The first end of equivalent inductance is electrically connected to the connected node of the positive and negative electrode of two adjacent sections single battery, and second end is connected electrically in
First pole of two neighboring transistor corresponding with the two adjacent sections single battery and the connected node of the second pole；Wherein x is big
In the integer equal to 1 and less than or equal to 2n.
Particularly, when the y section single battery in the same battery pack saves single battery with adjacent y+1
When electric quantity balancing, when y-th of transistor turns, and when the y+1 transistor disconnection, the corresponding circuit conducting of y batteries, phase
The equivalent inductance answered is in the mode to be charged by y section single battery to store electricity to be equalized；When y-th of transistor is disconnected
It opens, and when with y+1 transistor turns, the corresponding circuit conducting of y+1 batteries, the equivalent inductance is in the y+
The mode of 1 economize on electricity tank discharge is to transmit electricity to be equalized；Alternatively, when the electricity of y section single battery is lower than y+1 section monomer electricity
When the electricity in pond, when the y+1 transistor turns, and when y-th of transistor disconnection, the corresponding circuit conducting of y+1 batteries,
The equivalent inductance is in the mode to be charged by y+1 section single battery to store electricity to be equalized；When the y+1 transistor
It disconnects, and when with y-th of transistor turns, the corresponding circuit conducting of y batteries, the equivalent inductance is in the y and saves
The mode of battery discharge is to transmit electricity to be equalized；Wherein y is more than or equal to 1, and is less than or equal to 2n-1.
Particularly, when the y section single battery and non-conterminous z section single battery generation electricity in the same battery pack
When amount is balanced, when y transistor turns, the corresponding circuit conducting of y batteries, corresponding equivalent inductance is in by the y
The mode of single battery charging is saved to store electricity to be equalized；When the disconnection of y transistor, and when z transistor turns, with y
When batteries and circuit corresponding with z batteries are connected, the control of equivalent inductance in the two circuits in the control module
It is worked together under system in transformation mode to transmit electricity to be equalized；Wherein z is the integer for being less than or equal to 2n more than or equal to 1, still
Not equal to y+1, also it is not equal to y-1.
Particularly, when a section single battery being located in A battery pack saves monomer electricity with the b being located in B battery group
When electric quantity balancing occurs for pond, charge a batteries in the A group to store electricity to be equalized；By the electricity to be equalized
Section 1 single battery in the 2n section single battery i.e. A+1 group being transferred in a group is measured, and is utilized two neighboring
Battery pack shares the relationship of Section 1 and 2n section single battery, by the charge transport to be equalized to the in B-1 group 11.
Section 1 battery in 2n batteries i.e. B group；By the charge transport to be equalized stored in Section 1 battery in B group to described
The b of B group saves single battery；Wherein, the A and B is the integer unequal each other for being less than or equal to M more than or equal to 1, a
It is the integer for being less than or equal to 2n more than or equal to 1 with b.
Particularly, the transistor is power transistor.
Particularly, if N-1 can not be divided exactly by 2n-1, M isModulus adds 1.
Particularly, if N-1 can not be divided exactly by 2n-1, M isModulus, B areRemainder, and the pipe
Managing device further includes saving B articles of circuit corresponding to 2n batteries with 2n-B, the phase each other of any two in the B circuit
It all respectively include two different equivalent inductances in adjacent circuit.
Present invention also provides a kind of electrical equipments, including concatenated single battery, and the cell tube as documented by preceding
Reason system.
Present invention also provides a kind of battery management master control system, it is configured to logical with battery management system noted before
Letter, and control the working condition of the battery management system.
Present invention also provides a kind of battery management methods, by the battery management system including M series-connected cell managing device
System manages M series-connected cell group accordingly, wherein the final section single battery of the P battery pack is also the P+1 battery pack
First segment single battery, wherein P be more than or equal to 1 and be less than or equal to M-1 integer；Each cell managing device configuration
To work in charge and discharge mode or transformation mode；The method includes the single battery situations in each battery pack of detection, and to
External cell management master control system reports, and is proceeded as follows according to the control signal received: in the same battery pack, when one
When saving single battery and neighboring unit cell generation electric quantity balancing, under the charge and discharge mode, by electricity to be equalized described
It is transmitted between two adjacent sections single battery；In the same battery pack, when a section single battery and non-conterminous single battery occur
When electric quantity balancing, under the charge and discharge and transformation mode, by electricity to be equalized between the non-conterminous two sections single battery
Transmission.
Particularly, the operation further includes when a section single battery being located in A battery pack and being located at B battery group
In b section single battery occur electric quantity balancing when, under charge and discharge mode, in the A group a batteries charging with
Store electricity to be equalized；Under charge and discharge and transformation mode, the electricity to be equalized is passed from a batteries of the A group
Section 1 single battery being defeated by the last 1 section single battery i.e. A+1 group in the A group, and utilize two neighboring battery
The relationship of group shared Section 1 and last 1 section single battery, gives the charge transport to be equalized under charge and discharge and transformation mode
Section 1 battery in last 1 batteries i.e. B group in B-1 group；It will be the 1st in B group under charge and discharge and/or transformation mode
The charge transport to be equalized stored in batteries saves single battery to the b of the B group；Wherein, the A and B are
It is less than or equal to the integer unequal each other of M more than or equal to 1, a and b are the integer more than or equal to 1.
Based on the management method of above-mentioned series-connected cell group modularization management system, it is controlled using every sub- management module
N number of single battery in corresponding battery unit is the electricity transfer between the N number of single battery realized in each battery unit,
Electricity transfer between adjacent cell is then realized by shared single battery, and then can be realized any two battery list
Electricity transfer between member, to realize the balanced management of series-connected cell group.
From the above, it can be seen that the present invention has following advantages:
(1) present invention forms multiple identical battery units first by series-connected cell group modularization, recycles multiple sub- management
Module carries out one-to-one management to battery unit, and the equilibrium of N number of single battery in battery unit is real by active equalization unit
It is existing；Equilibrium between adjacent cell is realized by 1 shared single battery, to realize the modularization to battery pack
Management；
(2) on the basis of battery pack uses modularization management, between battery management main control module and sub- management module
Unit is realized by wireless communication for communication.Based on modularized design, so that when a battery unit or a sub- management module
When something goes wrong, it as long as being analyzed and processed for the unit or submodule, does not need to all batteries in system
Analyzed with all management devices so that series-connected cell group and management system manage and maintain it is more convenient effectively, simultaneously
It is designed based on wireless transmission, so that the communication stability of system is higher, efficiency of transmission is higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the battery balanced management system of the prior art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the schematic diagram of control principle of the present invention；
Fig. 4 is the signal timing diagram of control method shown in Fig. 3；
Fig. 5 is the schematic diagram of control principle of the present invention；And
Fig. 6 is the signal timing diagram of control method shown in Fig. 5.
Specific embodiment
In conjunction with Fig. 2 to Fig. 3, one embodiment that the present invention will be described in detail, but claim of the invention is not appointed
What is limited.
As shown in Fig. 2, a kind of series-connected cell group modularization management system, including battery management main control module and M structure
Identical sub- management module, M sub- management modules are for managing the series-connected cell being made of the single battery of T sequential series
Group；
The series-connected cell group being managed is in turn divided into the identical battery of M structure according to the concatenated sequence of single battery
Unit, each battery unit include N number of single battery, and adjacent cell shares 1 single battery, i.e. the latter battery unit
The 1st single battery simultaneously be also previous battery unit n-th single battery, wherein the relationship of T, M, N should meet: T
=M* (N-1)+1, N take positive integer and be more than or equal to 2, M take positive integer and be more than or equal to the 2, the 1st sub- management module with the 1st to
N-th single battery is connected, and the 2nd sub- management module is connected with N to the 2N-1 single battery, and so on, m-th
Management module is connected with the (M-1) * N-M+2 to M*N-M+1 single battery, i.e. M sub- management modules correspond management M
Battery unit；
Battery master control management module can carry out two-way for being managed to whole system with M sub- management modules
Wireless communication；Every sub- management module is used to carry out balanced management, battery to N number of single battery in its corresponding battery unit
Monitoring, and two-way wireless communication can be carried out with battery master control management module；
Specifically:
(1) battery management main control module includes main control unit and the first wireless communication unit, and main control unit is used for system
Management, the first wireless communication unit be used for and sub- management module carry out two-way wireless communication.
Sub- management module includes active equalization unit, battery monitor unit and the second wireless communication unit, active equalization list
Member carries out active equalization for the electricity to its corresponding N number of single battery, and battery monitor unit is corresponding N number of for monitoring its
The work state information of single battery, the second wireless communication unit are used to carry out double-direction radio with battery management main control module logical
Letter.
(2) in battery management main control module: main control unit receives all sub- management moulds by the first wireless communication unit
The work state information that second wireless communication unit of block is sent, and according to these work state informations in all battery units
The working condition of single battery analyzed, generate the control information of every sub- management module, and control information is passed through the
One wireless communication unit is sent to the second wireless communication unit of corresponding sub- management module；
In every sub- management module: the second wireless communication unit receives the first wireless communication of battery management main control module
The control information that unit is sent, the control information that active equalization unit is received according to the second wireless communication unit are corresponding to its
The electricity of N number of single battery in battery unit carries out active equalization, and battery monitor unit is for monitoring its corresponding battery list
The work state information of N number of single battery in member, and electricity is sent by the second transmission unit by these work state informations
Pond manages the first wireless communication unit of main control module, and work state information includes at least voltage, electric current, electricity, temperature information.
Active equalization unit is carried out using existing balanced management structure as shown in Figure 1 when it is implemented, as needed will
Battery pack is divided into several battery units, there is several single batteries in each unit, and adjacent cell shares a list
Body battery correspondingly configures the balanced unit by structure as shown in Figure 1 for each battery unit, to be formed and battery unit quantity
Several balance modules of system, then battery monitor unit and wireless communication unit are configured for each balance module, and then formed
Several include the sub- management module of " equilibrium+monitoring+wireless transmission ".
According to one embodiment, include in the wireless communication unit and the Content of Communication of external cell management master control system
The address information and/or check information of battery pack and/or single battery.
According to one embodiment, battery status includes at least voltage, electric current, electricity, and/or temperature information.
According to one embodiment, the wireless communication unit in each cell managing device is additionally configured to and other battery managements
Radio-cell communication in device.
In the structure of the corresponding battery unit of an active equalization module shown in Fig. 3:
The cathode of 1st single battery B1 of battery unit is connected with the anode of the 2nd single battery B2, the 2nd monomer
The cathode of battery B2 is connected with the anode of the 3rd single battery B3, the cathode and the 4th monomer electricity of the 3rd single battery B3
The anode of pond B4 is connected；
The drain electrode of 1st power switch tube Q1 of power converter cells is connected with the anode of the 1st single battery B1, source electrode with
The drain electrode of 2nd power switch tube Q2 is connected, the drain electrode of the source electrode and the 3rd power switch tube Q3 of the 2nd power switch tube Q2
It is connected, the source electrode of the 3rd power switch tube Q3 is connected with the drain electrode of the 4th power switch tube Q4, the 2nd power switch tube Q2's
Source electrode is connected with the cathode of the 2nd single battery B2, and the source electrode of the 4th power switch tube Q4 and the 4th single battery B4's is negative
Extremely it is connected, the grid of 4 power switch tubes is connected with active equalization control unit；
One end of 1st winding L1 is connected with the cathode of the 1st single battery B1, the other end and the 1st power switch tube
The source electrode of Q1 is connected, and one end of the 2nd winding L2 is connected with the cathode of the 3rd single battery B3, and the other end is opened with the 3rd power
The source electrode for closing pipe Q3 is connected, and the Same Name of Ends of 4 windings is respectively positioned on the same side；
By controlling the on-off of 4 power switch tubes, the electricity of B1 and B2, B3 and B4, B1 and B3, B2 and B4 can be realized
Two-way exchange, specific control principle are as follows:
(1) as shown in figure 3, the electricity two-way exchange between single battery B1 and B2 be by control power switch tube Q1 and
Q2 realizes that power switch tube Q3 and Q4 be not turned at this moment.When the electric current iL1 of winding L1 is timing, positive electricity is from B1 to B2
Transfer；Conversely, positive electricity is shifted from B2 to B1 when the electric current iL1 of winding L1 is negative.Electricity exchange process between B1 and B2
In each signal timing diagram it is as shown in Figure 4.
Electricity exchange principle class between electricity exchange principle between single battery B3 and B4 and single battery B1 and B2
Seemingly, it is realized by control power switch tube Q3 and Q4 pipe, power switch tube Q1 and Q2 are not turned at this moment, when the electricity of winding L2
Stream iL2 is timing, and positive electricity is shifted from B3 to B4；Conversely, positive electricity is turned from B4 to B3 when the electric current iL2 of winding L2 is negative
It moves.
(2) as shown in figure 5, the electricity two-way exchange between single battery B1 and single battery B3 passes through winding L1 and winding
The transformer that L2 is constituted is realized, by controlling power switch tube Q1 and Q3, may be implemented the electricity between single battery B1 and B3
Two-way exchange is measured, power switch tube Q2 and Q4 are not turned at this moment.When the electric current iL1 of winding L1 is positive, the electric current iL2 of winding L2
When being negative, the transfer of the positive electricity of B1 to B3 may be implemented；Otherwise when the electric current iL1 of winding L1 is negative, the electric current iL2 of winding L2 is
The transfer of the positive electricity of B3 to B1 may be implemented in timing.Timing diagram such as Fig. 6 of each signal in electricity exchange process between B1 and B3
It is shown.
Electricity exchange principle class between electricity exchange principle between single battery B2 and B4 and single battery B1 and B3
Seemingly, the electricity two-way exchange between single battery B2 and B4 is realized by transformer, by controlling power switch tube Q2 and Q4,
The electricity transfer between single battery B2 and B4 may be implemented, power switch tube Q1 and Q3 are not turned at this moment.When winding L1's
When electric current iL1 is positive, the electric current iL2 of winding L2 is negative, the transfer of the positive electricity of B2 to B4 may be implemented；Otherwise work as the electricity of winding L1
Stream iL1 is negative, the electric current iL2 of winding L2 is timing, and the transfer of the positive electricity of B4 to B2 may be implemented.
It can be seen that in each battery unit, controlled by active equalization single from the description of above-mentioned electricity principle of transfer
Control of the member to power switch tube can be realized the quick two-way exchange of electricity between 4 single batteries, be based on adjacent cell list
Member shares a single battery, and then the quick two-way exchange of electricity that can be realized M battery unit.
Such as: in structure as shown in Figure 2, when need by the electricity of the 2nd single battery of the 2nd battery unit turn
When moving on to the 3rd single battery of the 4th battery unit, the specific steps are as follows:
A. the 2nd battery unit is controlled first with the 2nd active equalization module, by the 2nd list in the 2nd battery unit
The electricity of body battery is transferred on the 4th single battery (the 1st single battery of i.e. the 3rd battery unit)；
B. the 3rd active equalization module is recycled to control the 3rd battery unit, in the 3rd battery unit, by the 1st
The electricity of single battery is transferred on the 3rd single battery, is then transferred to the 4th single battery (of i.e. the 4th battery unit
1 single battery) on；
C. the 4th battery unit finally is controlled using the 4th active equalization module, in the 4th battery unit, by the 1st
The electricity of a single battery is transferred on the 3rd single battery, and transfer process is completed.
The present embodiment has the advantage that compared with existing active equalization system
(1) present invention forms multiple identical battery units first by series-connected cell group modularization, recycles multiple sub- management
Module carries out one-to-one management to battery unit, and every sub- management module has the function of " equilibrium+monitoring+wireless transmission ", often
In a battery unit: the equilibrium of N number of single battery realizes that the equilibrium between adjacent cell passes through by active equalization unit
1 shared single battery is realized, and the monitoring of the working condition of single battery is realized by battery monitor unit, same with this
When, all active equalization units and battery monitor unit are controlled by battery management main control module again, to realize management system
To the modularization management of battery pack；
(2) active equalization unit, battery monitor unit and the second wireless communication unit for constituting sub- management module can collect
At on same chip；
(3) on the basis of battery pack uses modularization management, battery monitor unit monitoring information to external feedback and master
Unit is completed by wireless communication for the reception of dynamic balanced unit control information, i.e. battery management main control module and sub- management module
Between communication using wireless communication designs；
(4) it is based on modularized design, so that work as a battery unit or a sub- management module when something goes wrong, as long as
Be analyzed and processed for the unit or submodule, do not need in system all batteries and all management devices into
Row analysis so that series-connected cell group and management system manage and maintain it is more convenient effectively；
(5) wireless communication designs are based on, compared with traditional wire transmission mode, not only reduce system wiring complexity
Degree, and there is no the Wirelines line fault problem as caused by running environment (such as caused by automobile bumpiness travels
Route bending, line joint loosening etc.) so that the communication stability of system and reliability are higher, efficiency of transmission is also higher.
For the ease of doing further expanded application to above-mentioned technical proposal, in above-mentioned technical proposal: each sub- pipe
Two-way wireless communication can also be carried out with other sub- management modules by managing module.That is: the second nothing in each sub- management module
Line communication unit can also send information to the second wireless communication unit of other sub- management modules, and can receive from it
The information that second wireless communication unit of his sub- management module is sent.
Although 1 single battery, ability have only been shared in technical solution of the present invention between adjacent battery unit
The technical staff in domain can be extended according to this feature, and the single battery number shared between adjacent battery unit is extended
To be N number of, the circuit structure of sub- management module is then adjusted accordingly again.
In conclusion the invention has the following advantages that
(1) active equalization unit, battery monitor unit and the second wireless communication unit for constituting sub- management module can collect
At on same chip；
(2) system uses modularized design, so that series-connected cell group and series-connected cell group management system can be realized module
Change manages and maintains, and is also convenient for controlling with the branch for receiving the battery management main control module outside sub- management module；
(3) communication between sub- management module and battery management main control module uses wireless transmission method, has with traditional
Line transmission mode is compared, and has higher reliability, stability and efficiency of transmission.
This application provides a kind of series-connected cell management system, including M series-connected cell managing device, it is configured to corresponding
M series-connected cell group being made of N number of concatenated single battery is managed, wherein each series-connected cell managing device includes,
Converter unit is electrically connected with multi-section serial single battery, be configured to make electricity adjacent and non-conterminous single battery it
Between electricity allotment；Control unit is electrically connected with the converter unit, is configured to detect battery status, and controls institute
State the operating mode of converter unit；And wireless communication unit, it is electrically connected with the control unit, is configured to and external cell pipe
Master control system communication is managed, to transmit battery detecting result and receive battery control signal；Wherein M and N is whole more than or equal to 2
Number, the final section single battery of the P battery pack is also the first segment single battery of the P+1 battery pack, wherein P for greater than
Integer equal to 1 and less than or equal to M-1.
It particularly, include battery pack in the wireless communication unit and the Content of Communication of external cell management master control system
And/or the address information and/or check information of single battery.
Particularly, the battery status includes at least voltage, electric current, electricity, and/or temperature information.
Particularly, the wireless communication unit in each cell managing device is additionally configured to and other cell managing devices
In wireless communication unit communication.
Particularly, the converter unit of each cell managing device includes switch block, be configured to control with it is more
Section single battery corresponds to the closed state in a plurality of circuit；And charge and discharge and transformation component, be configured to operate in charging, electric discharge or
Transformation mode, to realize that the electricity between adjacent and non-conterminous single battery is deployed.
Particularly, the more piece single battery includes 2n section single battery, and the corresponding switch block includes 2n and opens
It closes, is configured to control the closed state of cell circuit corresponding with 2n section single battery respectively；And the charge and discharge are simultaneous
Transformation component includes n equivalent inductance, and any two in the n equivalent inductance are connected electrically in the electricity not adjacent to each other
In the circuit of pond；Wherein N=M* (2n-1)+1, n is the integer more than or equal to 2.
Particularly, the 2n switch is 2n transistor, and the control electrode of each transistor is all electronically connected to described
First pole of control unit, each transistor is electrically connected to the anode of corresponding single battery, and the second pole is electrically connected to institute
The cathode of single battery is stated, the second pole of x-th of transistor is electrically connected to the first pole of (x+1)th transistor；Any n
The first end of equivalent inductance is electrically connected to the connected node of the positive and negative electrode of two adjacent sections single battery, and second end is connected electrically in
First pole of two neighboring transistor corresponding with the two adjacent sections single battery and the connected node of the second pole；Wherein x is big
In the integer equal to 1 and less than or equal to 2n.
Particularly, when the y section single battery in the same battery pack saves single battery with adjacent y+1
When electric quantity balancing, when y-th of transistor turns, and when the y+1 transistor disconnection, the corresponding circuit conducting of y batteries, phase
The equivalent inductance answered is in the mode to be charged by y section single battery to store electricity to be equalized；When y-th of transistor is disconnected
It opens, and when with y+1 transistor turns, the corresponding circuit conducting of y+1 batteries, the equivalent inductance is in the y+
The mode of 1 economize on electricity tank discharge is to transmit electricity to be equalized；Alternatively, when the electricity of y section single battery is lower than y+1 section monomer electricity
When the electricity in pond, when the y+1 transistor turns, and when y-th of transistor disconnection, the corresponding circuit conducting of y+1 batteries,
The equivalent inductance is in the mode to be charged by y+1 section single battery to store electricity to be equalized；When the y+1 transistor
It disconnects, and when with y-th of transistor turns, the corresponding circuit conducting of y batteries, the equivalent inductance is in the y and saves
The mode of battery discharge is to transmit electricity to be equalized；Wherein y is more than or equal to 1, and is less than or equal to 2n-1.
Particularly, when the y section single battery and non-conterminous z section single battery generation electricity in the same battery pack
When amount is balanced, when y transistor turns, the corresponding circuit conducting of y batteries, corresponding equivalent inductance is in by the y
The mode of single battery charging is saved to store electricity to be equalized；When the disconnection of y transistor, and when z transistor turns, with y
When batteries and circuit corresponding with z batteries are connected, the control of equivalent inductance in the two circuits in the control module
It is worked together under system in transformation mode to transmit electricity to be equalized；Wherein z is the integer for being less than or equal to 2n more than or equal to 1, still
Not equal to y+1, also it is not equal to y-1.
Particularly, when a section single battery being located in A battery pack saves monomer electricity with the b being located in B battery group
When electric quantity balancing occurs for pond, charge a batteries in the A group to store electricity to be equalized；By the electricity to be equalized
Section 1 single battery in the 2n section single battery i.e. A+1 group being transferred in a group is measured, and is utilized two neighboring
Battery pack shares the relationship of Section 1 and 2n section single battery, by the charge transport to be equalized to the in B-1 group 11.
Section 1 battery in 2n batteries i.e. B group；By the charge transport to be equalized stored in Section 1 battery in B group to described
The b of B group saves single battery；Wherein, the A and B is the integer unequal each other for being less than or equal to M more than or equal to 1, a
It is the integer for being less than or equal to 2n more than or equal to 1 with b.
Particularly, the transistor is power transistor.
Particularly, if N-1 can not be divided exactly by 2n-1, M isModulus adds 1.
Particularly, if N-1 can not be divided exactly by 2n-1, M isModulus, B areRemainder, and the pipe
Managing device further includes saving B articles of circuit corresponding to 2n batteries with 2n-B, the phase each other of any two in the B circuit
It all respectively include two different equivalent inductances in adjacent circuit.
Present invention also provides a kind of electrical equipments, including concatenated single battery, and the cell tube as documented by preceding
Reason system.
Present invention also provides a kind of battery management master control system, it is configured to logical with battery management system noted before
Letter, and control the working condition of the battery management system.
Present invention also provides a kind of battery management methods, by the battery management system including M series-connected cell managing device
System manages M series-connected cell group accordingly, wherein the final section single battery of the P battery pack is also the P+1 battery pack
First segment single battery, wherein P be more than or equal to 1 and be less than or equal to M-1 integer；Each cell managing device configuration
To work in charge and discharge mode or transformation mode；The method includes the single battery situations in each battery pack of detection, and to
External cell management master control system reports, and is proceeded as follows according to the control signal received: in the same battery pack, when one
When saving single battery and neighboring unit cell generation electric quantity balancing, under the charge and discharge mode, by electricity to be equalized described
It is transmitted between two adjacent sections single battery；In the same battery pack, when a section single battery and non-conterminous single battery occur
When electric quantity balancing, under the charge and discharge and transformation mode, by electricity to be equalized between the non-conterminous two sections single battery
Transmission.
Particularly, the operation further includes when a section single battery being located in A battery pack and being located at B battery group
In b section single battery occur electric quantity balancing when, under charge and discharge mode, in the A group a batteries charging with
Store electricity to be equalized；Under charge and discharge and transformation mode, the electricity to be equalized is passed from a batteries of the A group
Section 1 single battery being defeated by the last 1 section single battery i.e. A+1 group in the A group, and utilize two neighboring battery
The relationship of group shared Section 1 and last 1 section single battery, gives the charge transport to be equalized under charge and discharge and transformation mode
Section 1 battery in last 1 batteries i.e. B group in B-1 group；It will be the 1st in B group under charge and discharge and/or transformation mode
The charge transport to be equalized stored in batteries saves single battery to the b of the B group；Wherein, the A and B are
It is less than or equal to the integer unequal each other of M more than or equal to 1, a and b are the integer more than or equal to 1.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (17)
1. a kind of series-connected cell management system, including M series-connected cell managing device are configured to manage by N number of series connection accordingly
Single battery composition M series-connected cell group, wherein each series-connected cell managing device includes,
Converter unit is electrically connected with multi-section serial single battery, is configured to make electricity in adjacent and non-conterminous monomer electricity
Electricity allotment between pond；
Control unit is electrically connected with the converter unit, is configured to detect battery status, and controls the converter unit
Operating mode；And
Wireless communication unit is electrically connected with the control unit, and is configured to communicate with external cell management master control system, with transmission
Battery detecting result and reception battery control signal；
Wherein M and N is the integer more than or equal to 2, and the final section single battery of the P battery pack is also the P+1 battery
The first segment single battery of group, wherein P is the integer more than or equal to 1 and less than or equal to M-1.
2. battery management system as described in claim 1, wherein the wireless communication unit and external cell manage master control system
It include the address information and/or check information of battery pack and/or single battery in the Content of Communication of system.
3. battery management system as described in claim 1, wherein the battery status include at least voltage, electric current, electricity,
And/or temperature information.
4. battery management system as described in claim 1, wherein the wireless communication unit in each cell managing device is also matched
It is set to and is communicated with the radio-cell in other cell managing devices.
5. the battery management system as described in any in claim 1-4, wherein the change of each cell managing device
Changing unit includes switch block, is configured to control the closed state in a plurality of circuit corresponding with more piece single battery；And charge and discharge
And transformation component, it is configured to operate in charging, electric discharge or transformation mode, to realize between adjacent and non-conterminous single battery
Electricity allotment.
6. battery management system as claimed in claim 5, wherein the more piece single battery includes 2n section single battery, accordingly
The switch block include 2n switch, be configured to control respectively and be closed with the 2n section corresponding cell circuit of single battery
Conjunction state；And
The charge and discharge and transformation component include n equivalent inductance, and any two in the n equivalent inductance are connected electrically in that
In this non-conterminous described cell circuit；
Wherein N=M* (2n-1)+1, n is the integer more than or equal to 2.
7. battery management system as claimed in claim 6, wherein the 2n switch is 2n transistor, each crystal
The control electrode of pipe is all electronically connected to described control unit, and the first pole of each transistor is electrically connected to corresponding single battery
Anode, the second pole is electrically connected to the cathode of the single battery, and the second pole of x-th of transistor is electrically connected to (x+1)th crystalline substance
First pole of body pipe；
The first end of any n equivalent inductance is electrically connected to the connected node of the positive and negative electrode of two adjacent sections single battery,
Its second end is connected electrically in the first pole of two neighboring transistor corresponding with the two adjacent sections single battery and the phase of the second pole
Even node；
Wherein x is greater than the integer for equal to 1 and being less than or equal to 2n.
8. battery management system as claimed in claim 7, wherein
When electric quantity balancing occurs for y batteries and adjacent y+1 batteries in the same battery pack,
When y-th of transistor turns, and when the y+1 transistor disconnection, the corresponding circuit conducting of y batteries is corresponding etc.
It imitates inductance and is in the mode to be charged by y section single battery to store electricity to be equalized；
When y-th transistor disconnects, and when with y+1 transistor turns, the corresponding circuit of y+1 batteries is connected, this etc.
It imitates inductance and is in the mode to y+1 economize on electricity tank discharge to transmit electricity to be equalized；
Alternatively, when electricity of the electricity of y section single battery lower than y+1 section single battery,
When the y+1 transistor turns, and when y-th of transistor disconnection, the corresponding circuit conducting of y+1 batteries, this is equivalent
Inductance is in the mode to be charged by y+1 section single battery to store electricity to be equalized；
When the y+1 transistor disconnects, and when with y-th of transistor turns, the corresponding circuit conducting of y batteries, this is equivalent
Inductance is in the mode to y economize on electricity tank discharge to transmit electricity to be equalized；
Wherein y is more than or equal to 1, and is less than or equal to 2n-1.
9. battery management system as claimed in claim 8, wherein
When electric quantity balancing occurs for y batteries and non-conterminous z batteries in the same battery pack,
When y transistor turns, the corresponding circuit conducting of y batteries, corresponding equivalent inductance, which is in, saves monomer by the y
The mode of battery charging is to store electricity to be equalized；
When the disconnection of y transistor, and when z transistor turns, and y batteries and circuit corresponding with z batteries are connected
When, the equivalent inductance in the two circuits works to be equalized to transmit in transformation mode together under the control of the control module
Electricity；
Wherein z is the integer for being less than or equal to 2n more than or equal to 1, but is not equal to y+1, is also not equal to y-1.
10. battery management system as claimed in claim 9, wherein
When with the b section single battery being located in B battery group electricity occurs for a section single battery being located in A battery pack
When balanced,
It charges a batteries in the A group to store electricity to be equalized；
By the charge transport to be equalized to Section 1 monomer electricity in the 2n section single battery i.e. A+1 group in a group
Pond, and using the relationship of the shared Section 1 of two neighboring battery pack and 2n section single battery, the charge transport to be equalized is given
Section 1 battery in 2n batteries i.e. B group in B-1 group 11.；
B by the charge transport to be equalized stored in Section 1 battery in B group to the B group saves single battery；
Wherein, the A and B is the integer unequal each other for being less than or equal to M more than or equal to 1, and a and b are to be less than more than or equal to 1
Integer equal to 2n.
11. the battery management system as described in any in claim 7-10, wherein the transistor is power transistor.
12. battery management system as claimed in claim 6, wherein if N-1 can not be divided exactly by 2n-1, M isIt takes
Mould adds 1.
13. battery management system as claimed in claim 6, wherein if N-1 can not be divided exactly by 2n-1, M isIt takes
Mould, B areRemainder, and the managing device further includes saving B articles of circuit corresponding to 2n batteries, institute with 2n-B
Stating all respectively includes two different equivalent inductances in any two circuits adjacent to each other in B circuit.
14. a kind of electrical equipment, including concatenated single battery, and as it is recorded in claim 1-13-battery management
System.
15. a kind of battery management master control system is configured to communicate with battery management system documented in claim 1-13, and
And control the working condition of the battery management system.
16. a kind of battery management method, by including that the battery management system of M series-connected cell managing device manages M accordingly
Series-connected cell group, wherein the final section single battery of the P battery pack is also the first segment monomer electricity of the P+1 battery pack
Pond, wherein P is the integer more than or equal to 1 and less than or equal to M-1；Each cell managing device is configured to operate in charge and discharge
In mode or transformation mode；The described method includes:
The single battery situation in each battery pack is detected, and is reported to external battery management master control system, according to the control received
Signal proceeds as follows:
In the same battery pack, when a section single battery and neighboring unit cell generation electric quantity balancing, in the charge and discharge
Under mode, electricity to be equalized is transmitted between the two adjacent sections single battery；
In the same battery pack, when a section single battery and non-conterminous single battery generation electric quantity balancing, in the charge and discharge
Under electricity and transformation mode, electricity to be equalized is transmitted between the non-conterminous two sections single battery.
17. the method described in claim 16, wherein the operation further includes
When with the b section single battery being located in B battery group electricity occurs for a section single battery being located in A battery pack
When balanced,
Under charge and discharge mode, charge a batteries in the A group to store electricity to be equalized；
Under charge and discharge and transformation mode, the electricity to be equalized is transferred to the A from a batteries of the A group
Section 1 single battery in last 1 section single battery i.e. A+1 group in group, and Section 1 is shared using two neighboring battery pack
With the relationship of last 1 section single battery, the charge transport to be equalized is given in B-1 group under charge and discharge and transformation mode
Section 1 battery in last 1 batteries i.e. B group；
By the charge transport to be equalized stored in Section 1 battery in B group to described under charge and discharge and/or transformation mode
The b of B group saves single battery；
Wherein, the A and B is the integer unequal each other for being less than or equal to M more than or equal to 1, and a and b are whole more than or equal to 1
Number.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018101244567 | 2018-02-07 | ||
| CN201810124456.7A CN108321887A (en) | 2018-02-07 | 2018-02-07 | A kind of series battery modularization active equalization system and method |
| CN201810124481.5A CN108306067A (en) | 2018-02-07 | 2018-02-07 | A kind of series battery modularization management system and method |
| CN2018101244815 | 2018-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109088112A true CN109088112A (en) | 2018-12-25 |
Family
ID=64620995
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811056001.2A Pending CN109088112A (en) | 2018-02-07 | 2018-09-11 | A kind of series-connected cell group modularization management system |
| CN201811055654.9A Pending CN109038760A (en) | 2018-02-07 | 2018-09-11 | A kind of series-connected cell group modularization active equalization system and method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811055654.9A Pending CN109038760A (en) | 2018-02-07 | 2018-09-11 | A kind of series-connected cell group modularization active equalization system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109088112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678609A (en) * | 2022-05-27 | 2022-06-28 | 中创新航科技股份有限公司 | Single battery voltage calculation control method and device and battery module |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638925A (en) * | 2019-01-21 | 2019-04-16 | 中科院合肥技术创新工程院 | A kind of battery management system based on active equalization |
| CN110228397B (en) * | 2019-06-12 | 2022-11-25 | 西北工业大学 | Electric vehicle power battery equalization system and equalization method thereof |
| CN110758179B (en) * | 2019-11-11 | 2020-11-24 | 河南理工大学 | LC-L-based series battery pack equalization circuit and equalization method |
| CN113459888A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪股份有限公司 | Vehicle power supply system and method and vehicle |
| CN112234679A (en) * | 2020-10-27 | 2021-01-15 | 湖北亿纬动力有限公司 | Battery pack equalization circuit and equalization method thereof |
| CN114678604B (en) * | 2020-12-24 | 2024-07-12 | 宇通客车股份有限公司 | Energy balance control method of power battery system based on wireless communication |
| CN113224816B (en) * | 2021-05-17 | 2022-12-20 | 上海交通大学 | Isolation interface, gating network, protection and equalization circuit and method for series battery pack |
| CN114834571B (en) * | 2022-03-22 | 2024-04-12 | 浙江铅锂智行科技有限公司 | Lead-acid battery pack |
| CN115765122B (en) * | 2023-02-13 | 2023-05-26 | 杭州协能科技股份有限公司 | Basic equalization unit, active equalization topological structure of battery pack and active equalization topological method of battery pack |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008206395A (en) * | 2004-08-27 | 2008-09-04 | Fdk Corp | Balance correcting device for secondary batteries connected in series |
| CN101741122A (en) * | 2010-01-15 | 2010-06-16 | 中国科学院电工研究所 | Series battery equalizing equipment |
| CN102544604A (en) * | 2012-01-10 | 2012-07-04 | 北京海博思创科技有限公司 | Battery system and method for equalizing electric quantity among battery modules |
| CN105703434A (en) * | 2016-03-21 | 2016-06-22 | 南京金龙新能源汽车研究院有限公司 | Battery management system with active equalization function |
| CN106921198A (en) * | 2017-04-20 | 2017-07-04 | 西安交通大学 | Equalizing circuit structure and equalization methods between a kind of battery cell |
| CN106961140A (en) * | 2017-04-28 | 2017-07-18 | 哈尔滨工业大学 | Trapezium structure accumulation power supply equalizing system based on inductance transformer |
| CN107275694A (en) * | 2017-07-24 | 2017-10-20 | 深圳市普禄科智能检测设备有限公司 | Have active equalization and passive distributed storage battery balancer and method in a balanced way concurrently |
| CN107394863A (en) * | 2017-09-21 | 2017-11-24 | 孙亮 | The online active equalization system of communication storage battery group |
-
2018
- 2018-09-11 CN CN201811056001.2A patent/CN109088112A/en active Pending
- 2018-09-11 CN CN201811055654.9A patent/CN109038760A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008206395A (en) * | 2004-08-27 | 2008-09-04 | Fdk Corp | Balance correcting device for secondary batteries connected in series |
| CN101741122A (en) * | 2010-01-15 | 2010-06-16 | 中国科学院电工研究所 | Series battery equalizing equipment |
| CN102544604A (en) * | 2012-01-10 | 2012-07-04 | 北京海博思创科技有限公司 | Battery system and method for equalizing electric quantity among battery modules |
| CN105703434A (en) * | 2016-03-21 | 2016-06-22 | 南京金龙新能源汽车研究院有限公司 | Battery management system with active equalization function |
| CN106921198A (en) * | 2017-04-20 | 2017-07-04 | 西安交通大学 | Equalizing circuit structure and equalization methods between a kind of battery cell |
| CN106961140A (en) * | 2017-04-28 | 2017-07-18 | 哈尔滨工业大学 | Trapezium structure accumulation power supply equalizing system based on inductance transformer |
| CN107275694A (en) * | 2017-07-24 | 2017-10-20 | 深圳市普禄科智能检测设备有限公司 | Have active equalization and passive distributed storage battery balancer and method in a balanced way concurrently |
| CN107394863A (en) * | 2017-09-21 | 2017-11-24 | 孙亮 | The online active equalization system of communication storage battery group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678609A (en) * | 2022-05-27 | 2022-06-28 | 中创新航科技股份有限公司 | Single battery voltage calculation control method and device and battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109038760A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109088112A (en) | A kind of series-connected cell group modularization management system | |
| KR102202613B1 (en) | Apparatus for equalizing battery module, battery pack including the same, and vehicle | |
| CN113906645A (en) | Module-based energy system capable of cascade and interconnection configuration and related method thereof | |
| CN104184183A (en) | Battery management system and method for driving same | |
| RU2013104566A (en) | CHARGER FOR BATTERY, NETWORK OF MULTIPLE CHARGERS AND METHOD FOR THEIR OPERATION | |
| CN109039136A (en) | A kind of power assembly system based on modular multi-level converter | |
| RU2012140444A (en) | ELECTRICAL INSTALLATION WITH CAPACITY FOR CHARGING ELECTRIC BATTERIES | |
| CN108039759B (en) | Multi-mode high-efficiency energy equalizer of lithium ion battery system and control method thereof | |
| CN107275691A (en) | Battery pack managing and control system and control method | |
| CN110450667A (en) | A kind of energy storage charging pile | |
| CN108321887A (en) | A kind of series battery modularization active equalization system and method | |
| CN107303825A (en) | For the charging system of electric vehicle and for the method to electric vehicle charging | |
| CN108768201B (en) | Energy storage system formed by bidirectional converters and control method thereof | |
| EP4380815A2 (en) | Systems, devices, and methods for charging and discharging module-based cascaded energy systems | |
| CN115667020A (en) | Modular cascade energy system with cooling device and replaceable energy source capability | |
| CN116584028A (en) | Multi-phase module-based energy system framework and related methods | |
| CN108306067A (en) | A kind of series battery modularization management system and method | |
| CN110445205B (en) | DC power supply balance management system and control method | |
| CN109672260A (en) | A kind of energy-storage system of high-frequency isolation transformation | |
| CN210309975U (en) | Energy storage charging pile | |
| Yang et al. | A reconfigurable supercapacitor cell balancing circuit based on a CLLC converter and multiple switch banks | |
| CN114928127B (en) | Modular battery system and equalization control method | |
| Lee et al. | Novel cell balancing applied near-field coupling and Serial–Parallel Circuit configuration | |
| CN107215221B (en) | Series battery distributed active non-dissipative equalization circuit, battery and automobile | |
| CN113595221A (en) | Composite power supply module and composite power supply equalization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214111 China Sensor Network International Innovation Park E2-509, 200 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province Applicant after: Rongxin Electronic Technology (Wuxi) Co., Ltd. Address before: 214135 China Sensor Network International Innovation Park E2-509, 200 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province Applicant before: Wuxi Ling Core Electronic Technology Co. Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
|
| RJ01 | Rejection of invention patent application after publication |