CN107425572A - A kind of energy intelligent management system of power battery pack - Google Patents
A kind of energy intelligent management system of power battery pack Download PDFInfo
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- CN107425572A CN107425572A CN201710705896.7A CN201710705896A CN107425572A CN 107425572 A CN107425572 A CN 107425572A CN 201710705896 A CN201710705896 A CN 201710705896A CN 107425572 A CN107425572 A CN 107425572A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000011217 control strategy Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000007726 management method Methods 0.000 abstract description 105
- 208000032953 Device battery issue Diseases 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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- 238000004092 self-diagnosis Methods 0.000 description 1
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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- 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
-
- H02J7/0022—
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- H02J2007/0067—
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of energy intelligent management system of power battery pack, including master controller and multiple monocell Intelligent management modules；Monocell in power battery pack is divided into multiple groups, the corresponding monocell Intelligent management module of each group, each group includes at least one monocell；Monocell Intelligent management module is used to be monitored the state of monocell in group, in monitoring result exception, the monocell (group) of exception is isolated, and keep the connection of power battery pack；Master controller is used to carry out voltage-regulation to total output voltage after each monocell Intelligent management module management and control, persistently exports pre-determined stability electric current and total voltage.Pass through intelligent online automatic rejection dead battery, it is ensured that for whole group battery when there are some battery failures no more than certain ratio, battery pack can also continue and the stable normal voltage and current of output.So as to ensure and improve reliability, availability of the power battery pack in the preparation time of planning, extend the service life of battery pack.
Description
Technical field
The present invention relates to battery management technique, the Intelligent Energy administrative skill of more particularly to a kind of power battery pack.
Background technology
Power battery pack refers in units of group, can outwardly provide the battery pack of direct current power.Such as uninterrupted power source system
The backup battery of system (hereinafter referred to as UPS)：After dispatch from foreign news agency input failure, energy of the UPS typically by discharging (inversion) backup battery
Measure and quickly put into power supply for electrical equipment, will not power down when outer lighting breaks or disconnects for a long time using electric equipment.Power
Battery pack has large-scale application, the UPS of such as computer room or control room, electrokinetic cell bag, the base of electric vehicle in industry-by-industry
Direct current communication power supply stood etc..Electrokinetic cell typically uses in groups, such as UPS 240V DC DC bus system, using 20 pieces
12V lead-acid accumulator is one group by series connection and exports nominal 240V DC voltage.
Monocell FAQs includes in battery pack：
I. bulging, cracking：Such as lead-acid storage battery outer case damage, battery electrolyte leakage etc., these situations then battery occurs
It need to typically scrap in advance；
Ii. capacity reduces：Battery capacity "abnormal" reduces；
Iii. power-on time is reduced：The battery backup time requirement of planning can not even be met；
Iv. the life-span is reduced：Battery is scrapped ahead of time, causes great economic loss, infringement is also caused to environment.
Battery failure, cause the defects of removing technique itself, be due to that charge and discharge process does not have the reason for a big chunk
Manage.
The existing division of history into periods to battery management technique：
I. the first generation technique：Detection, the single battery voltage of monitoring battery, group voltage, electric current can be continued；
Ii. second-generation technology：First generation technique+monocell internal resistance measurement+temperature survey；
Iii. third-generation technology：Second-generation technology+monocell capacity estimation；
However, by under existing group of charging and group discharge mode, because battery with two side terminals can not continue to ensure, can not keep away
Exempt from single battery in group and phenomena such as overcharge, overdischarge, charge less electricity occur.Because existing electrokinetic cell generally uses whole group pipe
Reason pattern, so that and monocell not good enough to the uniformity of monocell in group is difficult to effectively compatibility or automatic the problems such as failure
Processing.Maximum drawback be present so as to cause to use and manage battery in groups：Wooden pail effect, monoblock battery failure, causes whole group to be lost
Effect, battery performance largely depend on the poor single battery of state.
The content of the invention
It is small for each monocell it is an object of the invention to provide a kind of energy intelligent management system of power battery pack
Group carries out independent management, and the monocell that can dynamically exclude to fail online ensures so as to realize that the automatic restructuring of battery pack is discharged
With improve reliability, availability of the power battery pack in the preparation time of planning, extend the service life of battery pack.
In order to solve the above technical problems, embodiments of the present invention provide a kind of energy intelligent management of power battery pack
System, including：Master controller and at least two monocell Intelligent management modules；Monocell in power battery pack is divided at least
Liang Ge groups, the corresponding monocell Intelligent management module of each group, each group comprise at least a monocell；
The monocell Intelligent management module is used to continue to monitor the state of monocell in group, in monitoring result
When meeting the decision condition of monocell exception, the monocell group of exception is isolated, and keep the connection of the power battery pack；
The master controller is used to carry out voltage to total output voltage after each monocell Intelligent management module management and control
Regulation, persistently export pre-determined stability electric current and total voltage.
Embodiment of the present invention in terms of existing technologies, can be with intelligent online automatic rejection dead battery, it is ensured that whole
For Battery pack when there is some battery failures no more than certain ratio, battery pack can also continue and the normal voltage of stable output and electricity
Stream.So as to ensure and improve reliability, availability of the power battery pack in the preparation time of planning, extend the use of battery pack
Life-span.
As a further improvement, the monocell Intelligent management module includes inner terminal and outer terminal, single electricity
The both positive and negative polarity of the inner terminal of pond Intelligent management module is connected respectively with the both positive and negative polarity of corresponding monocell group, each single electricity
The both positive and negative polarity of the outer terminal of pond Intelligent management module distinguishes positive-negative series successively, total both positive and negative polarity after series connection and the main control
Device connects；
The monocell Intelligent management module isolates the monocell group of exception, and keeps the connection bag of the battery pack
Include：The both positive and negative polarity short circuit of this monocell Intelligent management module outer terminal is simultaneously switched off between inner terminal and outer terminal
Connection；
The master controller carries out voltage-regulation to total output voltage after each monocell Intelligent management module management and control,
Persistently exporting pre-determined stability electric current and total voltage includes：The master controller is according to the outer of each monocell Intelligent management module
Total output voltage after side terminal series connection carries out voltage-regulation, exports pre-determined stability electric current and total voltage.
As a further improvement, the monocell Intelligent management module is additionally operable to when monitoring result is normal, by this list electricity
The positive pole of pond Intelligent management module outer terminal connects with the positive pole of inner terminal, the negative pole of outer terminal and bearing for inner terminal
Pole connects.Enable the normal monocell group normal power supply of testing result.
As a further improvement, the both positive and negative polarity of the inner terminal of the monocell Intelligent management module and corresponding monocell
The mode that the both positive and negative polarity of group is connected respectively is：
The monocell group includes a monocell, the inner terminal of the monocell Intelligent management module it is positive and negative
Pole and the both positive and negative polarity of the monocell are connected respectively；
The monocell group includes at least two monocells, and each monocell is connected in the group, institute
State the inner terminal of monocell Intelligent management module both positive and negative polarity connected with monocell group after both positive and negative polarity be connected respectively.
So as to distribute a monocell Intelligent management module for each monocell in power battery pack, carry out one-to-one
Independent monitoring and management and control, can also be grouped to the monocell in power battery pack, individual by M by N number of monocell of battery pack
It is grouped for a baby battery group, and monocell Intelligent management module, Mei Gedan is disposed respectively for N/M monocell group
The corresponding monocell Intelligent management module of battery group.
As a further improvement, the master controller is additionally operable to provide charging current and voltage for the power battery pack；
Each monocell Intelligent management module is additionally operable to manage the charge independence process of its monocell group connected, monitors it
The charged state of the monocell group connected, control the charging modes of its monocell group connected.By individually charging
Management and control so that battery pack charge efficiency and each monocell charging quality can be optimal.
As a further improvement, the monocell Intelligent management module is specifically used for being adjusted according to the state of monocell in group
The charging current and voltage of the whole monocell group, or charge control strategy is independently provided in units of group.So as to most
The difference of limits compatibility single cell consistency, ensure that monocell charging is optimal to greatest extent, so that it is guaranteed that the battery design life-span.
As a further improvement, the monocell Intelligent management module also includes：
Self-test submodule, it is whether normal for detecting this monocell Intelligent management module, detecting this monocell intelligence
During management module exception, shield this monocell Intelligent management module, or, disconnect this monocell Intelligent management module with it is corresponding
Connection between monocell group.
As a further improvement, shielding this monocell Intelligent management module includes：
By the positive pole of this monocell Intelligent management module outer terminal and the positive pole short circuit of inner terminal, outer terminal is born
Pole and the negative pole short circuit of inner terminal.
As a further improvement, the company disconnected between this monocell Intelligent management module and corresponding monocell group
Connect including：
The positive level of the positive level and inner terminal of this monocell Intelligent management module outer terminal is disconnected, outer terminal is born
The negative pole of pole and inner terminal disconnects.
As a further improvement, each monocell Intelligent management module connects with master controller communication.
As a further improvement, whether the master controller to be additionally operable to Autonomous test master controller normal, master control is being detected
During device exception processed, automatic protection action is performed.
As a further improvement, the master controller is additionally operable to by logical with each monocell Intelligent management module
News, determine whether each monocell Intelligent management module and its corresponding monocell group are normal, and abnormal single electricity is occurring
When the quantity of pond group and/or monocell Intelligent management module exceeds pre-determined threshold, the intelligent management system performs automatic protect
Shield acts and stops the power battery pack electric discharge.
As a further improvement, the master controller includes：Receive the charging terminal of charging current and each monocell
The battery terminal of Intelligent management module series connection, the total lead-out terminal being connected with electricity consumption side；
The automatic protection action includes：By the positive pole of the charging terminal on the master controller and total lead-out terminal just
It is extremely short to connect, the negative pole short circuit of the negative pole of charging terminal and total lead-out terminal, and/or, the charging terminal, total lead-out terminal
Disconnected between the battery terminal.
Brief description of the drawings
Fig. 1 is the energy intelligent management system structural representation according to the power battery pack of first embodiment of the invention；
Fig. 2 is the energy intelligent management system structural representation according to the power battery pack of second embodiment of the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, each reality below in conjunction with accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
In order that reader more fully understands the application and proposes many ins and outs.But even if without these ins and outs and base
Many variations and modification in following embodiment, each claim of the application technical side claimed can also be realized
Case.
The first embodiment of the present invention is related to a kind of energy intelligent management system of power battery pack, as shown in figure 1, bag
Include：Master controller and multiple monocell Intelligent management modules；Master controller is installed on by battery pack；Monocell Intelligent management module
It is installed on beside single battery, the corresponding monocell Intelligent management module of each monocell；Master controller and each monocell intelligence
Between energy management module, pass through bus mode and communicate connection.
Each monocell Intelligent management module includes：Inner side anode and cathode terminals 101, outside anode and cathode terminals 102 and put
Status monitoring submodule, Charge Management submodule and switching control submodule between inner terminal and outer terminal.
The both positive and negative polarity of the corresponding monocell of the inner side anode and cathode terminals 101 of monocell Intelligent management module corresponds to respectively
Connection；The outer terminal 102 of each monocell Intelligent management module in battery pack, is connected by both positive and negative polarity successively, forms string
A group relation is unified into, groups of high pressure both positive and negative polarity, is connected on the battery terminal 104 of master controller after series connection.
Wherein, the status monitoring submodule of monocell Intelligent management module, for being monitored to the state of monocell and
Calculate, the state of monocell includes the voltage of monocell, electric current, internal resistance, capacity, temperature, dump energy and other single electricity
Assessed value of pond state etc..
Switching control submodule, monitoring (containing calculating) result for being obtained in status monitoring submodule meet that monocell is different
During normal decision condition, by the both positive and negative polarity short circuit of this monocell Intelligent management module outer terminal, interior outer terminal is simultaneously switched off
Between connection.Will monocell switching corresponding to this monocell Intelligent management module be isolation, exist so as to intelligence
Line automatic rejection dead battery.Wherein, the abnormal decision condition of monocell comprises at least one below or its any combination：Single electricity
The dump energy in pond reaches default first threshold；And/or the voltage of monocell is less than default Second Threshold；And/or single electricity
The electric current in pond is less than the 3rd threshold value；And/or the internal resistance of monocell is higher than the 4th threshold value；And/or the capacity of monocell is less than the
Five threshold values；And/or the temperature of monocell is higher than the 6th threshold value etc..
Charge Management submodule, for providing charging current and voltage for monocell, manage its monocell connected
Charge independence process, the charged state of its monocell connected is monitored, control the charging modes of its monocell connected, and
And the charging current and voltage of the monocell can be adjusted according to the state of monocell in group, or in units of group independently
Charge control strategy (only including a monocell in present embodiment in a group) is provided.By individually charging so that electricity
Pond group charge efficiency and each monocell charging quality can be optimal.By adjusting the list according to the state of corresponding monocell
The charging current and voltage of battery, can compatible single cell consistency to greatest extent difference, ensure that monocell fills to greatest extent
Electricity is optimal, so that it is guaranteed that the battery design life-span.
A communication interface 103 is also provided on monocell Intelligent management module, as the Slave nodes in bus and conduct
The battery set management module of the master controller of Master nodes establishes both-way communication.
Master controller further comprises：Communication interface 104, rectification module, charging module, output voltage adjusting module and
Battery set management module.
Wherein, rectification module is used to alternating current being converted to direct current.It is each monocell intelligent management that charging module, which is used for,
Module provides charging current and voltage.So as to from the power supply of outside input (such as outside civil power or external charging/motor-generator set)
Energy is obtained, charge independence is carried out to each monocell.Rectification module and charging module can also be combined into an integral module.
Output voltage adjusting module is used for total output after being connected according to the outer terminal of each monocell Intelligent management module
Voltage carries out voltage-regulation, and continues to export pre-determined stability electric current and total voltage.So that after intelligent automatic rejection dead battery,
Whole group battery is ensured when there are some battery failures no more than certain ratio, and battery pack can also continue and the normal electricity of stable output
Pressure and electric current, realize the ability that the nominal voltage and current of battery pack is provided.And then ensure and improve power battery pack and planning
Preparation time in reliability, availability, extend the service life of battery pack.
Battery set management module is used to be communicated by bus and monocell Intelligent management module, receives each monocell intelligence
The status information of energy management module, including the whether normal status information of monocell Intelligent management module, monocell intelligent management
Status information whether module isolates etc., monocell Intelligent management module is managed, the data received are concentrated
Analysis, realize master controller from monitoring self diagnosis, can be also used for battery pack control strategy implement (including management of charging and discharging with
The output of the combustion adjustment parameter of control command and other modules and the implementation of relay protective scheme) etc..
Master controller shares three sets of DC terminals, is attached to the charging terminal 105 of the output of charging module respectively, connection
The battery terminal 106 of high pressure both positive and negative polarity after being connected to each monocell Intelligent management module, and it is connected to the electric side of electricity consumption/need
Total lead-out terminal 107.
Total lead-out terminal 107 is deployed in after the battery pack output voltage adjusting module of master controller, output voltage adjustment
The total voltage of output of the module to each monocell Intelligent management module is output on total lead-out terminal after carrying out overall pressure regulation, is realized
The ability of the nominal voltage and current of battery pack is provided.
It is controlled between three sets of DC terminals by switch, under charge mode, switch 1 and switch 2 are turned on, and are switched
3 are disconnected, and charging is carried out to power battery pack by charging module.Under discharge mode, switch 2 and switch 3 are turned on, switch 1
Disconnect, exported and powered by output voltage adjusting module by power battery pack.
As a further improvement, above-mentioned monocell Intelligent management module can also include：
Self-test submodule, it is whether normal for detecting this monocell Intelligent management module, detecting this monocell intelligence
During management module exception, this monocell Intelligent management module is shielded, by the positive pole of this monocell Intelligent management module inner terminal
With the positive pole short circuit of outer terminal, the negative pole of inner terminal and the negative pole short circuit of outer terminal；Or detecting this monocell
During Intelligent management module exception, the connection between this monocell Intelligent management module and corresponding monocell is disconnected, will this list
The positive level of the positive level and outer terminal of battery intelligent management module inner terminal disconnects, the negative pole of inner terminal and outer terminal
Negative pole disconnects.
, can be automatically by its inner terminal and outer terminal that is, during monocell Intelligent management module itself fail
Both positive and negative polarity difference short circuit/connection (mode of operation one), it is also possible to automatically distinguish the both positive and negative polarity of its inner terminal and outer terminal
Disconnection/isolation and by the both positive and negative polarity short circuit (mode of operation two) of outer terminal.Specific works pattern can be in advance in monocell intelligence
Dial-up setting in energy management module.
Master controller also includes：
Self-shield module, it is whether normal for Autonomous test master controller, when detecting master controller exception, intelligent management
System performs automatic protection action：By the positive pole of the charging terminal on master controller and the positive pole short circuit of total lead-out terminal, charging
The negative pole short circuit of the negative pole of terminal and total lead-out terminal, the company of being fully disconnected between charging terminal, total lead-out terminal and battery terminal
Connect, 2 disconnections will be switched, switch 1 and switch 3 are turned on.Now monocell Intelligent management module and master controller do not occur
Effect.
The self-shield module can be also used for, by the communication with each monocell Intelligent management module, determining each monocell intelligence
Whether energy management module and its corresponding monocell are normal, and abnormal monocell group and/or monocell intelligent management is occurring
When the quantity of module exceeds pre-determined threshold, intelligent management system performs automatic protection and acts and stop power battery pack electric discharge：I.e.
By the positive pole of the charging terminal on master controller and the positive pole short circuit of total lead-out terminal, the negative pole of charging terminal and total lead-out terminal
Negative pole short circuit, be fully disconnected connection between charging terminal, total lead-out terminal and battery terminal, will switch 2 disconnections, switch 1
It is turned on switch 3.
The self-shield module can be contained in battery set management module in Fig. 1, and non-independent identification goes out.
In addition, bypass is also respectively provided with, is used in addition to general circuit in charging module and output voltage adjusting module
In module failure, module input is directly connected with output end, around out of order electric part in module.
Self-shield module can connect the bypass in output voltage adjusting module in output voltage adjusting module failure
It is logical, around out of order electric part in module；In charging module failure, if charging terminal input is that direct current fills
Piezoelectric voltage, then charging module is bypassed and connected, system other parts are maintained at normal state (charge or discharge pattern)；If charging
Terminal input is alternating voltage, then disconnects switch 1, system enters the discharge mode of normal state；Power battery pack is integrally lost
During effect, switch 2 is disconnected, and switch 1 and switch 3 are turned on.
Second embodiment of the invention also relates to a kind of energy intelligent management system of power battery pack, implements with first
Mode is roughly the same, and its difference is, in first embodiment, a monocell intelligent management mould is disposed for each monocell
Block, in the present embodiment, the monocell in single battery group is grouped, such as by N number of monocell of power battery pack, by M
Individual is that a baby battery group is grouped, and disposes monocell Intelligent management module respectively for N/M monocell group, each
The corresponding monocell Intelligent management module of monocell group, as shown in Figure 2.
Each monocell is connected in group, and the both positive and negative polarity and monocell of the inner terminal of monocell Intelligent management module are small
Both positive and negative polarity after group series connection is connected respectively.The both positive and negative polarity of the outer terminal of each monocell Intelligent management module equally respectively according to
Secondary positive-negative series, total both positive and negative polarity after series connection are connected with master controller (battery terminal).
By carrying out packet management and control to monocell in power battery pack so that the EMS of present embodiment is matched somebody with somebody
Put more flexible, go for the different various equipment of occasion.
It is noted that each module involved in present embodiment includes logic module, in actual applications, one
Individual logic unit can be a part for a physical location or a physical location, can also be with multiple physics lists
The combination of member is realized.In addition, in order to protrude the innovative part of the present invention, will not be with solving institute of the present invention in present embodiment
The unit that the technical problem relation of proposition is less close introduces, but this is not intended that in present embodiment and other lists are not present
Member.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention,
And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (14)
- A kind of 1. energy intelligent management system of power battery pack, it is characterised in that including：Master controller and at least two single electricity Pond Intelligent management module；Monocell in power battery pack is divided at least two groups, each group includes at least one list Battery, the corresponding monocell Intelligent management module of each group；The monocell Intelligent management module is used to continue to monitor the state of monocell in group, meets in monitoring result During the decision condition of monocell exception, the monocell group of exception is isolated, and keep the connection of the power battery pack；The master controller is used to carry out voltage-regulation to total output voltage after each monocell Intelligent management module management and control, Persistently export pre-determined stability electric current and total voltage.
- 2. the energy intelligent management system of power battery pack according to claim 1, it is characterised in that the monocell intelligence Can management module include inner terminal and outer terminal, the both positive and negative polarity of the inner terminal of the monocell Intelligent management module with it is right The both positive and negative polarity for the monocell group answered is connected respectively, the both positive and negative polarity difference of the outer terminal of each monocell Intelligent management module Positive-negative series successively, total both positive and negative polarity after series connection are connected with the master controller；The monocell Intelligent management module isolates the monocell group of exception, and keeps the connection of the battery pack to include： By the both positive and negative polarity short circuit of this monocell Intelligent management module outer terminal, the company between inner terminal and outer terminal is simultaneously switched off Connect；The master controller carries out voltage-regulation to total output voltage after each monocell Intelligent management module management and control, continues Output pre-determined stability electric current and total voltage include：The master controller is according to the outboard end of each monocell Intelligent management module Total output voltage after substring connection carries out voltage-regulation, exports pre-determined stability electric current and total voltage.
- 3. the energy intelligent management system of power battery pack according to claim 2, it is characterised in that the monocell intelligence Energy management module is additionally operable to when monitoring result is normal, by the positive pole and medial extremity of this monocell Intelligent management module outer terminal The positive pole connection of son, the negative pole of outer terminal connect with the negative pole of inner terminal.
- 4. the energy intelligent management system of power battery pack according to claim 2, it is characterised in that the monocell intelligence Can the both positive and negative polarity of inner terminal of management module be with the mode that the both positive and negative polarity of corresponding monocell group is connected respectively：The monocell group includes a monocell, the both positive and negative polarity of the inner terminal of the monocell Intelligent management module with The both positive and negative polarity of the monocell is connected respectively；The monocell group includes at least two monocells, and each monocell is connected in the group, the list Both positive and negative polarity after the both positive and negative polarity of the inner terminal of battery intelligent management module is connected with monocell group is connected respectively.
- 5. the energy intelligent management system of power battery pack according to claim 1, it is characterised in that the monocell State comprises at least one below or its any combination：Voltage, electric current, internal resistance, capacity, temperature or dump energy；The abnormal decision condition of the monocell comprises at least one below or its any combination：The dump energy of the monocell is less than first threshold；And/orThe voltage of the monocell is less than Second Threshold；And/orThe electric current of the monocell is less than the 3rd threshold value；And/orThe internal resistance of the monocell is higher than the 4th threshold value；And/orThe capacity of the monocell is less than the 5th threshold value；And/orThe temperature of the monocell is higher than the 6th threshold value.
- 6. the energy intelligent management system of power battery pack according to claim 1, it is characterised in that the master controller It is additionally operable to provide charging current and voltage for the power battery pack；Each monocell Intelligent management module is additionally operable to manage the charge independence process of its monocell group connected, prison The charged state of its monocell group connected is surveyed, controls the charging modes of its monocell group connected.
- 7. the energy intelligent management system of power battery pack according to claim 6, it is characterised in that the monocell intelligence Can management module be specifically used for adjusting the charging current and voltage of the monocell group according to the state of monocell in group, or with Group is that unit independently provides charge control strategy.
- 8. the energy intelligent management system of power battery pack according to claim 1, it is characterised in that the monocell intelligence Energy management module also includes：Self-test submodule, it is whether normal for detecting this monocell Intelligent management module, detecting this monocell intelligent management During module exception, this monocell Intelligent management module is shielded, or, disconnect this monocell Intelligent management module and corresponding single electricity Connection between the group of pond.
- 9. the energy intelligent management system of power battery pack according to claim 8, it is characterised in that described this list of shielding Battery intelligent management module includes：By the positive pole of this monocell Intelligent management module inner terminal and the positive pole short circuit of outer terminal, the negative pole of inner terminal with The negative pole short circuit of outer terminal.
- 10. the energy intelligent management system of power battery pack according to claim 8, it is characterised in that described to disconnect this Connection between monocell Intelligent management module and corresponding monocell group includes：The positive level of the positive level and outer terminal of this monocell Intelligent management module inner terminal is disconnected, the negative pole of inner terminal with The negative pole of outer terminal disconnects, and by the both positive and negative polarity short circuit of outer terminal.
- 11. the energy intelligent management system of power battery pack according to claim 1, it is characterised in that each single electricity Pond Intelligent management module connects with master controller communication.
- 12. the energy intelligent management system of power battery pack according to claim 1, it is characterised in that the main control Device is additionally operable to whether Autonomous test master controller is normal, and when detecting master controller exception, execution automatic protection acts.
- 13. the energy intelligent management system of power battery pack according to claim 11, it is characterised in that the main control Device is additionally operable to by the communication with each monocell Intelligent management module, determine each monocell Intelligent management module and its Whether corresponding monocell group is normal, and the quantity of abnormal monocell group and/or monocell Intelligent management module is occurring During beyond pre-determined threshold, perform automatic protection and act and stop the power battery pack electric discharge.
- 14. the energy intelligent management system of the power battery pack according to claim 12 or 13, it is characterised in that the master Controller includes：Receive charging current charging terminal, connected with each monocell Intelligent management module battery terminal, and Total lead-out terminal of electricity consumption side connection；The automatic protection action includes：By the just extremely short of the positive pole of the charging terminal on the master controller and total lead-out terminal Connect, the negative pole short circuit of the negative pole of charging terminal and total lead-out terminal, and/or, the charging terminal, total lead-out terminal and institute State and disconnect between battery terminal.
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