CN105515117B - A kind of battery charging and discharging intelligent management system - Google Patents
A kind of battery charging and discharging intelligent management system Download PDFInfo
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- CN105515117B CN105515117B CN201610039884.0A CN201610039884A CN105515117B CN 105515117 B CN105515117 B CN 105515117B CN 201610039884 A CN201610039884 A CN 201610039884A CN 105515117 B CN105515117 B CN 105515117B
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- battery
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- voltage
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of battery charging and discharging intelligent management system, including：The multiple Smart battery modules being serially connected, each Smart battery module are connected to main control module and are used for：Battery remaining power is provided to main control module；Maximum chargeable or discharge power is provided to main control module；Main control module, the signal of the residual capacity sent according to Smart battery module, it is low according to the low charge power height of residual capacity or discharge power, the principle that residual capacity high charge power is low or discharge power is high, the real time charging power or discharge power of each Smart battery module are provided, the realtime power that Smart battery module provides according to main control module carries out the regulation of input and output.In present system, between module can arbitrary connection in series-parallel, after the battery of different charging states is cascaded, by charge or discharge once or several times, can reach balanced substantially.
Description
Technical field
The invention belongs to cell art, more particularly to a kind of battery charging and discharging intelligent management system.
Background technology
Battery management system is generally responsible for the calculating of battery in battery pack electricity, battery protection, the electric quantity balancing between battery
Signal communication inside and outside control and battery management system etc..In the prior art, the product of battery is typically used, is all needed
Battery management system arrange in pairs or groups to control.
Because battery is in the fabrication process it is difficult to ensure that have complete homogeneity, can be deposited between the battery unit respectively connected
In the difference of charge or discharge characteristic.Therefore, when using the battery pack of series-connected cell unit, there is a problem in that：Fill
When electric, in same battery pack, even if some battery units are overcharged, remain on and some battery units be present and not yet reach full
With；When or discharging again, in same battery pack, some battery units are still not fully discharged, but still some battery units are excessively put
Electricity.In addition, if battery unit is excessively discharged/charged for a long time, it is possible that significantly in the material for forming battery unit
Deterioration so that one of the reason for characteristic of battery unit becomes different, and this deterioration is difference between aggravation battery unit.
The content of the invention
It is an object of the invention to provide a kind of battery charging and discharging intelligent management system, with overcome it is of the prior art not
Foot.
To achieve the above object, the present invention provides following technical scheme：
According to an embodiment of the present, there is provided a kind of battery charging and discharging intelligent management system, including：
The multiple Smart battery modules being serially connected, composition main battery loop carry out power output or input, while often
The individual Smart battery module is connected to main control module and is used for：
Battery remaining power is provided to main control module；
Maximum chargeable or discharge power is provided to main control module；
Main control module, the signal of the residual capacity sent according to Smart battery module is low according to residual capacity, charges
Power is high or discharge power is low, the residual capacity high principle that then charge power is low or discharge power is high, provides each intelligent battery
The real time charging power or discharge power of module, the realtime power that Smart battery module provides according to main control module are inputted
The power adjusting of output.
In the specific embodiment of the present invention, each Smart battery module include respectively an energy control plate, with
And the battery modules being connected with the energy control plate, the energy control plate are chargeable to main control module offer battery maximum
Or discharge power, while the realtime power requirement sent according to main control module is adjusted to the input-output power of battery modules
System.
In the specific embodiment of the present invention, the energy control plate includes a two-way voltage modulation circuit, should
The real time charging or discharge power that voltage modulation circuit provides according to main control module, adjust the output or defeated of Smart battery module
Enter voltage, so as to adjust output or input power, output or input voltage are high, then power is big, on the contrary then power is small.
In the specific embodiment of the present invention, the voltage modulation circuit is one and adjusts electric current by HF switch
For dutycycle so as to control the BUCK circuits of power output, bi-directional voltage modulation circuit is two voltage modulation circuits of a positive and a negative
A voltage modulation circuit it can only pass through therefrom by the circuit after parallel connection, while by diode control electric current.
In the specific embodiment of the present invention, the system has two kinds of mode of operations：
1) charge mode：During charging, remaining capacity value and energy control plate that main control module provides according to battery modules
The maximal input value provided, the Smart battery module of least residue capacity is found out, and be directed to some Smart battery module
This is provided according to (the 1- module residual capacity percentages)/(1- least residue capacity Smart battery module residual capacities percentage)
The current duty cycle data of Smart battery module, so as to control the power output surveyed to intelligent object to battery modules, to each
After individual Smart battery module implements above-mentioned action, then whole battery system is then by with unified time discharge off；
2) discharge mode：During electric discharge, remaining capacity value and energy control plate that main control module provides according to battery modules
The maximal input value provided, the Smart battery module of greatest residual capacity is found out, and be directed to some Smart battery module
This is provided according to (the 1- module residual capacity percentages)/(1- greatest residual capacity Smart battery module residual capacities percentage)
The current duty cycle data of intelligent object, so as to control the power to Smart battery module output, to each intelligent battery mould
After block implements above-mentioned action, then whole battery system will then be finished with unified time charging.
In the specific embodiment of the present invention, the battery modules include the electricity estimated battery remaining power
Road, the residual capacity estimation of battery are subtracted each other by battery modules output or the integration of input current and the battery modules capacity
Or obtained after being added, in no input and output electric current or stable electric current, the battery remaining power estimation circuit can also be according to electricity
" residual capacity-open-circuit voltage " curve in pond carries out the calibration of residual capacity.
In the specific embodiment of the present invention, the battery modules are by a battery unit or multiple series connection and/or simultaneously
Multiple battery units composition of connection.
In the specific embodiment of the present invention, each battery modules respectively further comprise：
Detecting voltage module, for selectively detecting the voltage of one of the battery unit；
Active balancing module, for receiving the total voltage of all battery units in some battery units, and after decompression
It is transferred to specific battery unit；
Control module, it is electrically connected with, is used for the detecting voltage module and active balancing module：
Capture the voltage signal that the detecting voltage module detects；
The particular battery unit is determined according to the voltage signal；
The active balancing module is controlled to supply the particular battery unit electric energy；
Signal bus, be selectively electrically connected with one of some battery units positive and negative electrode, and with the voltage
Detecting module and active balancing module are electrically connected with,
Switch module, it is connected between some battery units and controller, the control module is additionally operable to control institute
Switch module is stated selectively to connect the conductivity pathway of one of the signal bus and some battery units.
Compared with prior art, the advantage of the invention is that：
(1) between module can arbitrary connection in series-parallel, after the battery of different charging states is cascaded, by once or several
Secondary charge or discharge, it can reach balanced substantially；
(2) if wherein there is a module to break down, the use of whole system is not influenceed；
(3) control module can detect electricity with control voltage detecting module and active balancing module by identical signal bus
The voltage of pool unit charges to battery unit, avoided the erection of multi-line, and reduced complexity and the life of line architecture
Produce cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 show the functional-block diagram of battery charging and discharging intelligent management system in the specific embodiment of the invention；
Fig. 2 show the schematic diagram of voltage modulation circuit in the specific embodiment of the invention.
Embodiment
Below with reference to each embodiment shown in the drawings, the present invention will be described in detail.But such embodiment is not
The limitation present invention, structure that one of ordinary skill in the art is made according to such embodiment, method or change functionally
Change and be all contained in protection scope of the present invention.
With reference to shown in Fig. 1, battery charging and discharging intelligent management system includes main control module and is connected to main control
Multiple Smart battery modules of module, it is connected in series between the plurality of Smart battery module.
Main control module, the signal of the residual capacity sent according to Smart battery module, according to the low charging work(of residual capacity
Rate is high or discharge power is low, the residual capacity high principle that then charge power is low or discharge power is high, provides each intelligent battery mould
The real time charging power or discharge power of block, the realtime power that Smart battery module provides according to main control module input defeated
The power adjusting gone out.
The multiple Smart battery modules being serially connected, composition main battery loop carry out power output or input, while often
Individual Smart battery module is connected to main control module and is used for：Battery remaining power is provided to main control module；To main control
Module provides maximum chargeable or discharge power.Each Smart battery module includes an energy control plate and and the energy respectively
The battery modules of control panel connection, energy control plate provide battery maximum chargeable or discharge power to main control module, simultaneously
The realtime power requirement sent according to main control module is modulated to the input-output power of battery modules.
Battery modules also include the circuit estimated battery remaining power, and the residual capacity estimation of battery passes through battery
Module is exported or integration and the battery modules capacity of input current are subtracted each other or is obtained after being added, in no input and output electricity
When stream or stable electric current, the battery remaining power estimation circuit can also enter according to battery " residual capacity-open-circuit voltage " curve
The calibration of row residual capacity.
Battery modules have one by what a battery unit or multiple battery units of multiple series connection and/or parallel connection formed
Determine the battery of voltage and capacity.
Battery for can charge-discharge battery, including battery, lithium battery etc..
Join shown in Fig. 2, energy control plate includes a two-way voltage modulation circuit, and the voltage modulation circuit is according to master control
The real time charging or discharge power that molding block provides, output or the input voltage of Smart battery module are adjusted, so as to adjust output
Or input power, output or input voltage are high, then power is big, on the contrary then power is small.Voltage modulation circuit is one and passes through regulation
The dutycycle of electric current is so as to controlling the circuit of power output.
Voltage modulation circuit is a dutycycle by HF switch regulation electric current so as to control the BUCK of power output
Circuit, bi-directional voltage modulation circuit for a positive and a negative two voltage modulation circuits by the circuit after parallel connection, pass through simultaneously
Diode control electric current a voltage modulation circuit can only pass through therefrom.
System has two kinds of mode of operations：
1) charge mode：During charging, remaining capacity value and energy control plate that main control module provides according to battery modules
The maximal input value provided, the Smart battery module of least residue capacity is found out, and be directed to some Smart battery module
This is provided according to (the 1- module residual capacity percentages)/(1- least residue capacity Smart battery module residual capacities percentage)
The current duty cycle data of Smart battery module, so as to control the power output surveyed to intelligent object to battery modules, to each
After individual Smart battery module implements above-mentioned action, then whole battery system is then by with unified time discharge off；
2) discharge mode：During electric discharge, remaining capacity value and energy control plate that main control module provides according to battery modules
The maximal input value provided, the Smart battery module of greatest residual capacity is found out, and be directed to some Smart battery module
This is provided according to (the 1- module residual capacity percentages)/(1- greatest residual capacity Smart battery module residual capacities percentage)
The current duty cycle data of intelligent object, so as to control the power to Smart battery module output, to each intelligent battery mould
After block implements above-mentioned action, then whole battery system will then be finished with unified time charging.
Battery modules also include the circuit estimated battery remaining power, and the residual capacity estimation of battery passes through battery
Module is exported or integration and the battery modules capacity of input current are subtracted each other or is obtained after being added, in no input and output electricity
When stream or stable electric current, the battery remaining power estimation circuit can also enter according to battery " residual capacity-open-circuit voltage " curve
The calibration of row residual capacity.
In one embodiment, each battery modules respectively further comprise：
Detecting voltage module, for selectively detecting the voltage of one of the battery unit；
Active balancing module, for receiving the total voltage of all battery units in some battery units, and after decompression
It is transferred to specific battery unit；
Control module, it is electrically connected with, is used for the detecting voltage module and active balancing module：
Capture the voltage signal that the detecting voltage module detects；
The particular battery unit is determined according to the voltage signal；
The active balancing module is controlled to supply the particular battery unit electric energy；
Signal bus, be selectively electrically connected with one of some battery units positive and negative electrode, and with the voltage
Detecting module and active balancing module are electrically connected with,
Switch module, it is connected between some battery units and controller, the control module is additionally operable to control institute
Switch module is stated selectively to connect the conductivity pathway of one of the signal bus and some battery units.
In the technical scheme, control module is electrically connected with detecting voltage module and active balancing module, and it is controlled
Detecting voltage module selectively detects the voltage of one of plural battery unit, and determines that needs fill according to the voltage signal of acquisition
The particular battery unit of electricity.Control module is also by controlling active balancing module to receive all battery units in plural battery unit
Total voltage, and charged to the particular battery unit that charges of needs determined.
The positive and negative level that signal bus is arranged to selectively with one of plural battery unit is electrically connected with, while the letter
Number bus is also electrically connected with detecting voltage module and active balancing module.So, signal bus just provides voltage simultaneously
Detecting module detects the current path of battery cell voltage, and the electricity that active balancing module is charged to particular battery unit
Logical circulation road.
Each battery modules also include the switch module being connected between plural battery unit and control module.It include with
Plural switch matrix corresponding to above-mentioned plural battery unit.Control module can by controlling switch module with battery unit pair
The switch matrix answered is switched on and off coming selection signal bus and corresponding battery unit electrical communication.In the present embodiment,
Because detecting voltage process and the active balancing process of battery unit are respectively completed in the different periods, so control module
Work at least during detecting and during active balancing.
When during control module being operated in detecting, it connects the battery unit and signal that need to detect by switch module
Bus is electrically connected with, while control voltage detecting module captures the voltage signal of the battery unit by signal bus；Further
Ground, when during control module being operated in active balancing, it is total by controlling the particular battery unit for needing to be electrically charged and signal
Line electrical communication, and the particular battery unit is charged by active balancing module.
As is well known in the art, switch module can include triode, controllable silicon, relay switch,
Or metal oxide semiconductor field effect tube (Metallic Oxide Semiconductor Field Effect
Transistor, MOSFET) etc. common switch form.In the present embodiment, switch module uses MOSFET, and switching molding
Each switch matrix includes four MOSFET in block.
Main control module and control module can include microprocessor (MCU), and the MCU can include CPU
(Central Processing Unit, CPU), read-only memory module (read-only memory, ROM), random storage module
(random access memory, RAM), time block, digital-to-analogue conversion module (A/D converter) and plural number
Input/output port.Certainly, the integrated circuit that main control module and control module can also take other form, such as：Special-purpose
Integrated circuit (Application Specific Integrated Circuit, ASIC) or field programmable gate arrays
(Field Programmable Gate Array, FPGA) etc..
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although this specification is described according to embodiment, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with
The other embodiment of understanding.
Claims (6)
- A kind of 1. battery charging and discharging intelligent management system, it is characterised in that including：The multiple Smart battery modules being serially connected, composition main battery loop carry out power output or input, while each institute State Smart battery module and be connected to main control module and be used for：Battery remaining power is provided to main control module；Maximum chargeable or discharge power is provided to main control module；Main control module, the signal of the residual capacity sent according to Smart battery module, according to the low then charge power of residual capacity High or discharge power is low, the residual capacity high principle that then charge power is low or discharge power is high, provides each Smart battery module Real time charging power or discharge power, the realtime power that Smart battery module is provided according to main control module carries out input and output Power adjusting,Each Smart battery module includes an energy control plate and the battery mould being connected with the energy control plate respectively Group, the energy control plate provide battery maximum chargeable or discharge power to main control module, while according to main control module The realtime power requirement sent is modulated to the input-output power of battery modules,The system has two kinds of mode of operations：1) charge mode：During charging, remaining capacity value and energy control plate that main control module provides according to battery modules provide Maximal input value, find out the Smart battery module of least residue capacity, and for some Smart battery module according to (the 1- module residual capacity percentages)/(1- least residue capacity Smart battery module residual capacities percentage) provides the intelligence The current duty cycle data of battery module, so as to control the power to Smart battery module output, to each intelligent battery mould After block implements above-mentioned action, then whole battery system will then be finished with unified time charging；2) discharge mode：During electric discharge, remaining capacity value and energy control plate that main control module provides according to battery modules provide Maximal input value, find out the Smart battery module of greatest residual capacity, and for some Smart battery module according to (the 1- module residual capacity percentages)/(1- greatest residual capacity Smart battery module residual capacities percentage) provides the intelligence The current duty cycle data of module, it is equal to each Smart battery module so as to control the power to Smart battery module output After implementing above-mentioned action, then whole battery system is then by with unified time discharge off.
- 2. battery charging and discharging intelligent management system according to claim 1, it is characterised in that：The energy control plate includes One two-way voltage modulation circuit, the real time charging or discharge power that the voltage modulation circuit provides according to main control module, Input or the output voltage of Smart battery module are adjusted, so as to adjust input or power output, output or input voltage are high, then work( Rate is big, on the contrary then power is small.
- 3. battery charging and discharging intelligent management system according to claim 2, it is characterised in that：The voltage modulation circuit is So as to control the BUCK circuits of power output, bi-directional voltage modulation circuit is one dutycycle by HF switch regulation electric current Two voltage modulation circuits of a positive and a negative, while can only be therefrom by diode control electric current by the circuit after parallel connection One voltage modulation circuit passes through.
- 4. battery charging and discharging intelligent management system according to claim 1, it is characterised in that：The battery modules include pair The circuit that battery remaining power is estimated, the residual capacity estimation of battery pass through battery modules output or the integration of input current Subtracted each other with the battery modules capacity or obtained after being added, in no input and output electric current or stable electric current, the battery remains Covolume amount estimation circuit can also carry out the calibration of residual capacity according to battery " residual capacity-open-circuit voltage " curve.
- 5. battery charging and discharging intelligent management system according to claim 1, it is characterised in that：The battery modules are by one Battery unit forms, or is made up of the battery unit of multiple series connection, or is made up of multiple multiple battery units in parallel, or by more The battery unit of individual series connection and multiple battery unit compositions in parallel.
- 6. battery charging and discharging intelligent management system according to claim 5, it is characterised in that：Each battery modules are also Include respectively：Detecting voltage module, for selectively detecting the voltage of one of the battery unit；Active balancing module, for receiving the total voltage of all battery units in some battery units, and transmitted after being depressured To specific battery unit；Control module, it is electrically connected with, is used for the detecting voltage module and active balancing module：Capture the voltage signal that the detecting voltage module detects；The specific battery unit is determined according to the voltage signal；Control the specific battery unit electric energy of active balancing module supply；Signal bus, be selectively electrically connected with one of some battery units positive and negative electrode, and with the detecting voltage Module and active balancing module are electrically connected with,Switch module, it is connected between some battery units and control module, the control module is additionally operable to described in control Switch module selectively connects the conductivity pathway of one of the signal bus and some battery units.
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| US20170366019A1 (en) * | 2016-06-16 | 2017-12-21 | EcoReco Global Corporation | Battery Switching System and Method Thereof |
| CN106945543B (en) * | 2017-03-01 | 2022-08-16 | 上海依威能源科技有限公司 | Load balancing intelligent charging box |
| CN110676522B (en) * | 2019-09-29 | 2020-07-14 | 华人运通(江苏)技术有限公司 | Battery output power adjusting method, battery management system and storage medium |
| CN111404185B (en) * | 2020-03-20 | 2022-11-15 | 阳光电源股份有限公司 | Charging system control method, controller and system |
| CN112365279A (en) * | 2020-10-13 | 2021-02-12 | 北京峰智科技有限公司 | Method and device for processing battery pack charging quantity data and computer equipment |
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| CN205544370U (en) * | 2016-01-21 | 2016-08-31 | 苏州纳新新能源科技有限公司 | Battery measurement intelligent management system |
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| CN105515117A (en) | 2016-04-20 |
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