CN106972576A - Lithium battery energy storage battery system - Google Patents
Lithium battery energy storage battery system Download PDFInfo
- Publication number
- CN106972576A CN106972576A CN201710277603.XA CN201710277603A CN106972576A CN 106972576 A CN106972576 A CN 106972576A CN 201710277603 A CN201710277603 A CN 201710277603A CN 106972576 A CN106972576 A CN 106972576A
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- Prior art keywords
- energy storage
- storage battery
- lithium battery
- unit
- battery energy
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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
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- 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
-
- 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
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of lithium battery energy storage battery system, including battery management unit, lithium battery energy storage battery modular unit, power subsystem and electric control unit；The lithium battery energy storage battery modular unit is used to power to the power subsystem, and the power subsystem is used to be that the battery management unit and the electric control unit are powered；The battery management unit is used to be monitored the lithium battery energy storage battery modular unit, and controls the electric control unit according to Monitoring Data, and self-shield and self- recoverage are carried out to the lithium battery energy storage battery modular unit by the electric control unit.The present invention can be monitored to lithium battery energy storage battery modular unit; and self-shield and self- recoverage are carried out to lithium battery energy storage battery modular unit according to different Monitoring Datas; so that the lithium battery energy storage battery system of the present invention has self-shield and self-healing function; and the lithium battery energy storage battery system of the present invention is simultaneously uncomplicated; internal control is simple and convenient; cost is also very low, is highly convenient for scale application.
Description
Technical field
The present invention relates to a kind of lithium battery energy storage battery system, more particularly to a kind of self-shield and self-healing lithium battery energy storage battery
System.
Background technology
The area such as China Inner Mongol, Xinjiang, Qinghai is vast in territory, and many area construction power transmission network difficulty of construction are big, cost
Height, while these areas possess the resources such as more rich wind-force, illumination mostly, it is exactly to build to solve the preferable method of its electrical problem
If distributed energy micro-grid system is powered, but wind energy and solar energy generally have intermittent, fluctuation and unstability,
Commercial applications still have inconvenience, and energy-storage system can solve the unstability of generation of electricity by new energy, the required equipment of randomness,
Wind, light generating power supply quality can be improved.Energy-storage lithium battery system makes life-span, energy, power-performance, and high and low temperature environment
There is significant advantage with aspect of performance, in future, connect as off-network type scene with energy-storage system in remote districts, isolated island etc. without power network
The area entered will have large-scale application.
But lithium battery energy storage battery system very complex of the prior art, scale application is not easy to, and internal control is very
Complexity, cost is very high.
The content of the invention
The technical problem to be solved in the present invention is to overcome lithium battery energy storage battery system very complex in the prior art, be not easy to
Scale application, and internal control is very complicated, there is provided a kind of lithium battery energy storage battery system for cost very high defect.
The present invention is to solve above-mentioned technical problem by following technical proposals：
The invention provides a kind of lithium battery energy storage battery system, including battery management unit, lithium battery energy storage battery modular unit, electricity
Source unit and electric control unit；
The lithium battery energy storage battery modular unit is used to power to the power subsystem, and the power subsystem is used to be the electricity
Pond administrative unit and the electric control unit are powered；
The battery management unit is used to be monitored the lithium battery energy storage battery modular unit, and according to Monitoring Data control
The electric control unit is made, by the electric control unit to lithium battery energy storage battery modular unit progress self-shield and certainly
Recover.
It is preferred that the battery management unit is used for：
When the voltage for monitoring the lithium battery energy storage battery modular unit overcharges threshold values, pass through the electrical control list
The member control lithium battery energy storage battery modular unit only externally discharges；
When the voltage for monitoring the lithium battery energy storage battery modular unit was less than and puts threshold values, pass through the electrical control list
The member control lithium battery energy storage battery modular unit only internally charges；
When the voltage for monitoring the lithium battery energy storage battery modular unit is less than safe threshold, pass through the electrical control list
Member cuts off power supply of the lithium battery energy storage battery modular unit to the power subsystem.
It is preferred that the battery management unit is used for：
When the electric current for monitoring the lithium battery energy storage battery modular unit is higher than excessively stream threshold values, if electric discharge excessively stream, then lead to
Crossing the electric control unit controls the lithium battery energy storage battery modular unit only internally to charge, if charging excessively stream, then pass through institute
Stating electric control unit controls the lithium battery energy storage battery modular unit only externally to discharge.
It is preferred that the battery management unit is used for：
Monitoring the temperature of the lithium battery energy storage battery modular unit higher than the first threshold temperature or less than second temperature valve
During value, the lithium battery energy storage battery modular unit is controlled to be operated in normal temperature range by the electric control unit.
It is preferred that the power subsystem is additionally operable to be started by accessing external excitation source, the electricity is waken up upon actuation
Pond administrative unit, the battery management unit controls the lithium battery energy storage battery modular unit only right by the electric control unit
Interior charging；
When the battery management unit monitors that the voltage of the lithium battery energy storage battery modular unit reaches recovery threshold values, lead to
It is by the lithium battery energy storage battery modular unit by external excitation source power switching that the electric control unit, which is crossed, by the power subsystem
Power supply.
It is preferred that the battery management unit also includes communication interface, for being communicated with external piloting control；
The battery management unit is additionally operable to after confirming with external piloting control communication, then controls the electrical control list
Member.
It is preferred that the electric control unit includes first switch, the first D.C. contactor, the second D.C. contactor, the
Three D.C. contactors, the first diode, the second diode, the 3rd diode, the 4th diode；
First D.C. contactor and first diodes in parallel, one end of first D.C. contactor with it is described
The positive pole electrical connection of lithium battery energy storage battery modular unit, the other end is electrically connected with one end of second D.C. contactor；
Second D.C. contactor and second diodes in parallel, the other end pass through total ahead power interface and upper fraction
Cloth energy resource system is connected, and the negative pole of first diode is connected with the negative pole of second diode；
One end of 3rd D.C. contactor is electrically connected with the positive pole of the lithium battery energy storage battery modular unit, the other end with
The positive pole of 3rd diode is connected, and the negative pole of the 3rd diode is connected with the negative pole of the 4th diode, described
The positive pole of 4th diode is connected with total ahead power interface；
One end of the first switch is connected with the negative pole of the 3rd diode, the other end and the power subsystem phase
Even；
The negative pole of the lithium battery energy storage battery modular unit is connected by always bearing power interface with higher level's distributed energy resource system.
It is preferred that the negative pole of the lithium battery energy storage battery modular unit also passes through fuse and higher level's distributed energy resource system phase
Even.
Switched it is preferred that the electric control unit also includes self- recoverage, for controlling the power subsystem in closure
Force from the lithium battery energy storage battery modular unit power taking, start the power subsystem and powered for the battery management unit.
It is preferred that the electric control unit also includes current sensor.
It is preferred that the battery management unit includes a BCU (battery control unit) and two BMU (battery management lists
Member)；And/or；The lithium battery energy storage battery modular unit includes the 26.4V/80Ah lithium titanate battery energy-storage modules of four series connection；
And/or, the power subsystem is 24V dc sources.
The positive effect of the present invention is：The present invention can be monitored to lithium battery energy storage battery modular unit, and root
Come to carry out self-shield and self- recoverage to lithium battery energy storage battery modular unit according to different Monitoring Datas, so that the lithium electricity of the present invention
Pond energy-storage system has self-shield and self-healing function, and the lithium battery energy storage battery system of the present invention and uncomplicated, inside control
System is simple and convenient, and cost is also very low, is highly convenient for scale application.
Brief description of the drawings
Fig. 1 is the module diagram of the lithium battery energy storage battery system of presently preferred embodiments of the present invention.
Fig. 2 is the circuit connection diagram of the lithium battery energy storage battery system of presently preferred embodiments of the present invention.
Embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to described reality
Apply among a scope.
As shown in figure 1, the lithium battery energy storage battery system of the present invention includes battery management unit 1, lithium battery energy storage battery modular unit
2nd, power subsystem 3 and electric control unit 4；
Wherein, the lithium battery energy storage battery modular unit 2 is used to power to the power subsystem 3, and the power subsystem 3 is used for
It is that the battery management unit 1 and the electric control unit 4 are powered；
The battery management unit 1 is used to be monitored the lithium battery energy storage battery modular unit 2, to monitor the lithium electricity
The service data and health status of pond energy-storage module unit 2, then control the electric control unit 4 according to Monitoring Data, lead to
Cross 4 pairs of the electric control unit lithium battery energy storage battery modular unit 2 and carry out self-shield and self- recoverage.Wherein it is preferred to, institute
BCU and two BMU can be included by stating battery management unit 1, can be monitored in specific implementation process by BMU,
Monitoring Data is collected by BCU, implements corresponding control and Preservation tactics.
The self-shield of the lithium battery energy storage battery system of the present invention and self-recovering function are specific as follows：
When the voltage for monitoring the lithium battery energy storage battery modular unit 2 overcharges threshold values (V1), the battery management
Unit 1 controls the lithium battery energy storage battery modular unit 2 only externally electric discharge by the electric control unit 4, so that it is guaranteed that battery
Group is not overcharged；
When the voltage for monitoring the lithium battery energy storage battery modular unit 2 was less than and puts threshold values (V2), the battery management
Unit 1 controls the lithium battery energy storage battery modular unit 2 only internally charging by the electric control unit 4, so that it is guaranteed that battery
Group is only put；
When the voltage for monitoring the lithium battery energy storage battery modular unit 2 is less than safe threshold (V3), the battery management
Unit 1 cuts off the lithium battery energy storage battery modular unit 2 to the power supply of the power subsystem 3 by the electric control unit 4, from
And the power subsystem 3 is no longer from the power taking of lithium battery energy storage battery modular unit 2, it is ensured that battery pack safety.
When the electric current for monitoring the lithium battery energy storage battery modular unit 2 is higher than excessively stream threshold values (I1), if electric discharge excessively stream,
Then the battery management unit 1 controls the lithium battery energy storage battery modular unit 2 only internally to fill by the electric control unit 4
Electricity, if charging excessively stream, then the battery management unit 1 controls the lithium battery energy storage battery mould by the electric control unit 4
The only externally electric discharge of module unit 2, it is achieved thereby that overcurrent protection.
Monitoring the temperature of the lithium battery energy storage battery modular unit 2 higher than the first threshold temperature (T1) or less than the second temperature
During bottom valve value (T2), the lithium battery energy storage battery modular unit 2 is controlled to be operated in normal temperature model by the electric control unit 4
In enclosing, so as to protect the life-span of battery pack.
So as to which the battery management unit 1 is by controlling the electric control unit 4, realize to the lithium battery energy storage battery
The overcharging of modular unit 2, cross put, excessively stream, temperature protection, and then realize the self-insurance to the lithium battery energy storage battery modular unit 2
Shield.
In addition, the power subsystem 3 be additionally operable to by access external excitation source (including civil power, stand-by power supply, photovoltaic generation or
Wind-power electricity generation etc.) started, the battery management unit 1 is waken up upon actuation, and the battery management unit 1 passes through the electricity
Gas control unit 4 controls the lithium battery energy storage battery modular unit 2 only internally charging；
When the battery management unit 1 monitors that the voltage of the lithium battery energy storage battery modular unit 2 reaches recovery threshold values
(V4) when, by the electric control unit 4 by the power subsystem 3 by external excitation source power switching to be stored up by the lithium battery
Energy modular unit 2 is powered, so as to complete self-healing process so that the lithium battery energy storage battery modular unit 2 enters normal work
State.
So, by controlling the electric control unit 4, the power subsystem 3 is realized from the lithium battery energy storage battery mould
Module unit 2 or the automatic switchover of external power source (i.e. external excitation source) power taking, and can be in the lithium battery energy storage battery modular unit 2
After under-voltage protection, the battery management unit 1 is waken up by external excitation source and realizes self- recoverage, the lithium battery energy storage battery mould is protected
It is convenient for users to use while module unit 2.
In specific implementation process of the present invention, it (is specially CAN that the battery management unit 1, which can also include communication interface,
Communication interface), for being communicated with external piloting control；The battery management unit 1 is additionally operable to communicating confirmation with the external piloting control
Afterwards, then control the electric control unit 4, protected so that above-mentioned all self-protection functions both increase corresponding delay
Shield, if outside need is interactive, after the battery management unit 1 and external piloting control communication confirm, then performs final protection
Action；If outside need not be interactive, final protection act is independently performed by the battery management unit 1.
As shown in Fig. 2 in the present embodiment, the electric control unit is specifically included：First switch k0, the first direct current connect
Tentaculum k1, the second D.C. contactor k2, the 3rd D.C. contactor k3, the first diode D1, the second diode D2, the 3rd diode
D3, the 4th diode D4, self- recoverage switch B1 and fuse FU1；
Wherein, the first D.C. contactor k1 is in parallel with the first diode D1, the first D.C. contactor k1
One end electrically connected with the positive pole of the lithium battery energy storage battery modular unit 2, the one of the other end and the second D.C. contactor k2
End electrical connection；
The second D.C. contactor k2 is in parallel with the second diode D2, and the other end passes through total ahead power interface (PM)
It is connected with higher level's distributed energy resource system, the negative pole of the first diode D1 is connected with the negative pole of the second diode D2；
One end of the 3rd D.C. contactor k3 is electrically connected with the positive pole of the lithium battery energy storage battery modular unit 2, another
End is connected with the positive pole of the 3rd diode D3, the negative pole of the 3rd diode D3 and the negative pole of the 4th diode D4
It is connected, the positive pole of the 4th diode D4 is connected with total ahead power interface (PM)；
One end of the first switch k0 is connected with the negative pole of the 3rd diode D3, the other end and the power subsystem
3 are connected；
The negative pole of the lithium battery energy storage battery modular unit 2 is through the fuse FU1 by always bearing power interface (NM) and higher level
Distributed energy resource system is connected.Wherein GND represents ground connection.
The present invention realizes the self-protection function of lithium battery energy storage battery system and the control tool of self-recovering function using foregoing circuit
Body is as follows：
On self-protection function
1st, protection is overcharged：When the voltage for monitoring the lithium battery energy storage battery modular unit 2 overcharges threshold values (V1), institute
State battery management unit 1 by digital output (abbreviation DO) control the first D.C. contactor k1 disconnect, due to the first direct current
First diode D1 in parallel contactor k1 one-way conduction is acted on, now the battery pack of the lithium battery energy storage battery modular unit 2
It can only externally discharge, not receive outside internal charging, so that it is guaranteed that battery pack is not overcharged；
2nd, Cross prevention：When the voltage for monitoring the lithium battery energy storage battery modular unit 2, which was less than, puts threshold values (V2), institute
State battery management unit 1 controls the second D.C. contactor k2 to disconnect by DO, due in parallel with the second D.C. contactor k2 the
Two diode D2 one-way conduction is acted on, and now the battery pack of the lithium battery energy storage battery modular unit 2 can only receive outside internal
Charging, it is impossible to externally electric discharge, so that it is guaranteed that battery pack is only put；
3rd, safeguard protection：When the voltage for monitoring the lithium battery energy storage battery modular unit 2 is less than safe threshold (V3), institute
State battery management unit 1 controls the 3rd D.C. contactor k3 to disconnect by DO, so that the power subsystem 3 is no longer from lithium electricity
The power taking of pond energy-storage module unit 2, protection battery pack safety；
4th, overcurrent protection：When the electric current for monitoring the lithium battery energy storage battery modular unit 2 is higher than excessively stream threshold values (I1), if
It is electric discharge excessively stream, then the battery management unit 1 controls the second D.C. contactor k2 to disconnect by DO, if charging excessively stream, then
The battery management unit 1 controls the first D.C. contactor k1 to disconnect by DO, it is achieved thereby that overcurrent protection；
5th, temperature protection：When the temperature for monitoring the lithium battery energy storage battery modular unit 2 is higher than the first threshold temperature (T1)
Or during less than second temperature threshold values (T2), the battery management unit 1 controls the first D.C. contactor k1 and second straight by DO
Stream contactor k2 is simultaneously switched off, so that temperature protection is carried out, to ensure that battery pack is run within the scope of normal temperature, protection electricity
The life-span of pond group.
On self-recovering function
First, access external excitation source, by the 4th diode D4 and first switch k0, starts the power subsystem 3；
Then, the battery management unit 1 is waken up by the power subsystem 3, then the battery management unit 1 passes through DO
The second D.C. contactor k2 is controlled to disconnect, the first D.C. contactor k1 closures, the 3rd D.C. contactor k3 disconnect so that external excitation
Source can only charge to the lithium battery energy storage battery modular unit 2；
Then, when the voltage of the lithium battery energy storage battery modular unit 2 reaches recovery threshold values (V4), the battery management list
Member 1 passes through DO and controls the 3rd D.C. contactor k3 closures so that the power supply of the power subsystem 3 is by external excitation source power switching
Powered by the lithium battery energy storage battery modular unit 2, be closed at the second D.C. contactor k2, complete self-healing process so that
Lithium battery energy storage battery system enters normal operating conditions.
In addition, the self- recoverage switch B1 is then used to control the power subsystem 3 to force from the lithium battery in closure
The power taking of energy-storage module unit 2, starts the power subsystem 3 and is powered for the battery management unit 1.
In the specific implementation process of the present invention, the electric control unit 4 can also include current sensor.In addition,
The lithium battery energy storage battery modular unit 2 may include the 26.4V/80Ah lithium titanate battery energy-storage modules of four series connection, so as to constitute
One 105.6V/80Ah lithium titanate energy-storage units；The power subsystem 3 is specifically as follows 24V dc source, from institute
Lithium battery energy storage battery modular unit 2 or external power source power taking are stated, external power source specifically refers to distributed energy solar power generation.
In the present invention, total ahead power interface and the always negative power interface, lithium battery energy storage battery of the invention are passed through
System can provide electric energy storage for distributed energy resource system, play three aspects：1) it is the control system of distributed energy resource system
System provides electric energy；2) electric energy is provided for load；3) can smoothly wind-force and solar power generation fluctuation and unstability, improve wind
Power generates electricity and solar power generation quality.
It can be automatically cut off by the electric control unit 4 when the lithium battery energy storage battery modular unit 2 breaks down
Load and alarmed；After the fault restoration of lithium battery energy storage battery modular unit 2, B1 can be switched by the self- recoverage and carried out
Start；
Protection can also be exhausted into the electric energy of the lithium battery energy storage battery modular unit 2 by the electric control unit 4
During value, load is automatically cut off, protects the lithium battery energy storage battery modular unit 2 to prevent it is crossed from putting；In this case, lithium battery is stored up
Energy system is subjected to distributed energy resource system and is directly charged to normally enable threshold values for it.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of principle and essence from the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (10)
1. a kind of lithium battery energy storage battery system, it is characterised in that including battery management unit, lithium battery energy storage battery modular unit, power supply
Unit and electric control unit；
The lithium battery energy storage battery modular unit is used to power to the power subsystem, and the power subsystem is used to be the cell tube
Reason unit and the electric control unit are powered；
The battery management unit is used to be monitored the lithium battery energy storage battery modular unit, and controls institute according to Monitoring Data
Electric control unit is stated, self-shield is carried out to the lithium battery energy storage battery modular unit and from extensive by the electric control unit
It is multiple.
2. lithium battery energy storage battery system as claimed in claim 1, it is characterised in that the battery management unit is used for：
When the voltage for monitoring the lithium battery energy storage battery modular unit overcharges threshold values, pass through the electric control unit control
The lithium battery energy storage battery modular unit is made only externally to discharge；
When the voltage for monitoring the lithium battery energy storage battery modular unit was less than and puts threshold values, pass through the electric control unit control
The lithium battery energy storage battery modular unit is made only internally to charge；
When the voltage for monitoring the lithium battery energy storage battery modular unit is less than safe threshold, cut by the electric control unit
Disconnected power supply of the lithium battery energy storage battery modular unit to the power subsystem.
3. lithium battery energy storage battery system as claimed in claim 1, it is characterised in that the battery management unit is used for：
When the electric current for monitoring the lithium battery energy storage battery modular unit is higher than excessively stream threshold values, if electric discharge excessively stream, then pass through institute
Stating electric control unit controls the lithium battery energy storage battery modular unit only internally to charge, if charging excessively stream, then pass through the electricity
Gas control unit controls the lithium battery energy storage battery modular unit only externally to discharge.
4. lithium battery energy storage battery system as claimed in claim 1, it is characterised in that the battery management unit is used for：
When monitoring the temperature of the lithium battery energy storage battery modular unit higher than the first threshold temperature or less than second temperature threshold values,
The lithium battery energy storage battery modular unit is controlled to be operated in normal temperature range by the electric control unit.
5. lithium battery energy storage battery system as claimed in claim 1, it is characterised in that the power subsystem is additionally operable to outer by access
Driving source is started, and the battery management unit is waken up upon actuation, and the battery management unit passes through the electrical control
Unit controls the lithium battery energy storage battery modular unit only internally to charge；
When the battery management unit monitors that the voltage of the lithium battery energy storage battery modular unit reaches recovery threshold values, pass through institute
It is to be powered by the lithium battery energy storage battery modular unit by external excitation source power switching that electric control unit, which is stated, by the power subsystem.
6. the lithium battery energy storage battery system as described in any one in claim 1-5, it is characterised in that the battery management unit
Also include communication interface, for being communicated with external piloting control；
The battery management unit is additionally operable to after confirming with external piloting control communication, then controls the electric control unit.
7. the lithium battery energy storage battery system as described in any one in claim 2-5, it is characterised in that the electric control unit
Including first switch, the first D.C. contactor, the second D.C. contactor, the 3rd D.C. contactor, the first diode, the two or two pole
Pipe, the 3rd diode, the 4th diode；
First D.C. contactor and first diodes in parallel, one end and the lithium electricity of first D.C. contactor
The positive pole electrical connection of pond energy-storage module unit, the other end is electrically connected with one end of second D.C. contactor；
Second D.C. contactor and second diodes in parallel, the other end are distributed by total ahead power interface and higher level
Energy resource system is connected, and the negative pole of first diode is connected with the negative pole of second diode；
One end of 3rd D.C. contactor is electrically connected with the positive pole of the lithium battery energy storage battery modular unit, the other end with it is described
The positive pole of 3rd diode is connected, and the negative pole of the 3rd diode is connected with the negative pole of the 4th diode, and the described 4th
The positive pole of diode is connected with total ahead power interface；
One end of the first switch is connected with the negative pole of the 3rd diode, and the other end is connected with the power subsystem；
The negative pole of the lithium battery energy storage battery modular unit is connected by always bearing power interface with higher level's distributed energy resource system.
8. lithium battery energy storage battery system as claimed in claim 7, it is characterised in that the negative pole of the lithium battery energy storage battery modular unit
Also it is connected by fuse with higher level's distributed energy resource system.
9. lithium battery energy storage battery system as claimed in claim 7, it is characterised in that the electric control unit also includes self- recoverage
Switch, for controlling the power subsystem to force, from the lithium battery energy storage battery modular unit power taking, to start the electricity in closure
Source unit is that the battery management unit is powered；And/or, the electric control unit also includes current sensor.
10. lithium battery energy storage battery system as claimed in claim 1, it is characterised in that the battery management unit includes a BCU
With two BMU；And/or；The lithium battery energy storage battery modular unit includes the 26.4V/80Ah lithium titanate battery energy storage of four series connection
Module；And/or, the power subsystem is 24V dc sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277603.XA CN106972576B (en) | 2017-04-25 | 2017-04-25 | Lithium battery energy storage battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277603.XA CN106972576B (en) | 2017-04-25 | 2017-04-25 | Lithium battery energy storage battery system |
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| Publication Number | Publication Date |
|---|---|
| CN106972576A true CN106972576A (en) | 2017-07-21 |
| CN106972576B CN106972576B (en) | 2019-09-24 |
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|---|---|---|---|
| CN201710277603.XA Active CN106972576B (en) | 2017-04-25 | 2017-04-25 | Lithium battery energy storage battery system |
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| CN (1) | CN106972576B (en) |
Cited By (4)
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| CN107994669A (en) * | 2017-11-30 | 2018-05-04 | 中国电子科技集团公司第四十八研究所 | A kind of missile-borne microsatellite energy control system |
| CN110265734A (en) * | 2019-06-14 | 2019-09-20 | 湖南科霸汽车动力电池有限责任公司 | 48V track battery voltage monitor |
| CN110350624A (en) * | 2019-07-22 | 2019-10-18 | 奇越科技(北京)有限公司 | A kind of intelligent battery overdischarge abating protection device and method |
| US20210118621A1 (en) * | 2019-10-18 | 2021-04-22 | Advanced Technology Applications Group Inc. | Modular integrated stored power systems including a stored energy module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107994669A (en) * | 2017-11-30 | 2018-05-04 | 中国电子科技集团公司第四十八研究所 | A kind of missile-borne microsatellite energy control system |
| CN110265734A (en) * | 2019-06-14 | 2019-09-20 | 湖南科霸汽车动力电池有限责任公司 | 48V track battery voltage monitor |
| CN110350624A (en) * | 2019-07-22 | 2019-10-18 | 奇越科技(北京)有限公司 | A kind of intelligent battery overdischarge abating protection device and method |
| US20210118621A1 (en) * | 2019-10-18 | 2021-04-22 | Advanced Technology Applications Group Inc. | Modular integrated stored power systems including a stored energy module |
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| CN106972576B (en) | 2019-09-24 |
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