CN107516916A - Battery pack or capacitor pack management system and control method thereof - Google Patents
Battery pack or capacitor pack management system and control method thereof Download PDFInfo
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- CN107516916A CN107516916A CN201610440380.XA CN201610440380A CN107516916A CN 107516916 A CN107516916 A CN 107516916A CN 201610440380 A CN201610440380 A CN 201610440380A CN 107516916 A CN107516916 A CN 107516916A
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- capacitor
- battery
- battery pack
- charge value
- electric discharge
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- 239000003990 capacitor Substances 0.000 title claims abstract description 386
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000005611 electricity Effects 0.000 claims description 88
- 238000012360 testing method Methods 0.000 claims description 77
- 238000005259 measurement Methods 0.000 claims description 65
- 238000004146 energy storage Methods 0.000 claims description 21
- 230000003862 health status Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000006854 communication Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 238000004590 computer program Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 239000000178 monomer Substances 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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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
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H02J7/0021—
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H02J7/0077—
-
- H02J7/0091—
-
- H02J2007/0067—
-
- 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
Abstract
The application discloses a battery pack or capacitor pack management system and a control method thereof. One embodiment of the system comprises: the device comprises a measuring device, a charging device, a discharging device, a switch network, a control device and a processor. The embodiment realizes the balance of the electric quantity of each battery or capacitor in the battery pack or the capacitor bank, improves the overall performance of the battery pack or the capacitor bank, and prolongs the service life of the battery or the capacitor in the battery pack or the capacitor bank.
Description
Technical field
The application is related to technical field of electric power, more particularly to battery pack or capacitor bank management system and battery pack or electric capacity
The control method of device group management system.
Background technology
Battery pack or capacitor bank are widely used in fields such as communication back-up source, electric automobile, energy-accumulating power stations.So
And the performance of battery pack or capacitor bank, service life etc. be often connected on certain section in battery pack or capacitor bank or certain
A few section cells or capacitor limit, i.e., recurrent " wooden pail effect " in battery pack or capacitor bank.
Therefore, during the use of battery pack or capacitor bank, to each cell or capacitor being cascaded
Online (battery or capacitor have installed normal work in systems) detection and balanced extremely important.
The content of the invention
This application provides battery pack or capacitor bank management system, to solve the problems, such as to mention in background technology.
In a first aspect, this application provides a kind of battery pack or capacitor bank management system, the system includes:Measurement dress
Put, for measuring charge and discharge electric current and the battery of the battery of access or the voltage of capacitor, the battery of access or capacitor
The temperature of each cell or capacitor in group or capacitor bank;Charging device, carried out for the battery to access or capacitor
Charging;Electric discharge device, discharged for the battery to access or capacitor, the electric discharge device and the charging device, institute
It is parallel with one another to state measurement apparatus;Switching network, one end connection battery pack or capacitor bank, the other end connection measurement apparatus,
The charging device and the electric discharge device, for the combination by internal switch, make in battery pack or capacitor bank at least
One battery or capacitor access measurement apparatus, the charging device and the electric discharge device;Control device, with processor
And the switching network, the measurement apparatus, the charging device connect with the electric discharge device, for receiving the place
The control signal that reason device is sent, and according to the opening and closing of the control signal control switching network internal switch, the measurement
The switch of device, the charging device and the electric discharge device;Processor, connect with the measurement apparatus and the control device
Connect, voltage, electric current and the temperature measured for obtaining the measurement apparatus, according to the voltage, electric current and temperature pre-established
With battery or the corresponding relation of the charge value of capacitor, it is determined that access battery or capacitor charge value, if the charge value
Less than predetermined power threshold, then sent to control device and open the charging device, and close the electric discharge device
Control signal, if the charge value is higher than predetermined power threshold, to control device send open it is described electric discharge fill
Put, and close the control signal of the charging device.
In certain embodiments, the voltage, electric current and temperature and battery or pair of the charge value of capacitor are pre-established
The step of should being related to, including:The charging current or discharge current of predefined size are provided for test battery or test capacitors, its
In, the test battery or testing capacitor are identical with capacitor model in the battery in battery pack or the capacitor bank;Survey
Measure and record the voltage of the test battery or test capacitors, temperature, the survey for testing battery or test capacitors
Try the internal resistance of battery or test capacitors;The test battery or the charge value of test capacitors are calculated according to the internal resistance, will
Electricity of the charge value as the charging current or discharge current with the predefined size, the test battery or test capacitors
Charge value corresponding to pressure and the temperature of the test battery or test capacitors.
In certain embodiments, the battery pack or capacitor bank are connected with power supply or load, and the power supply is used for institute
State battery pack or capacitor bank is charged, it is described that the electric energy provided for obtaining the battery pack or capacitor bank is provided.
In certain embodiments, the charging device is additionally operable to produce charge pulse currents, and the electric discharge device is additionally operable to
Produce discharge pulse current so that the processor to control device from the unlatching charging device is sent to produce charging pulse
Electric current or the unlatching electric discharge device are started with producing discharge pulse current, obtain voltage, electricity that the measurement apparatus is measured
Stream and temperature.
In certain embodiments, the processor is connected by network with remote server, and the remote server is used for
Voltage, electric current and temperature that the processor is sent are obtained, voltage, electric current and the temperature sent to the processor is divided
Analysis, to determine the health status of the battery of access or capacitor.
In certain embodiments, the charging device includes direct-flow input end, and the electric discharge device includes direct current output
End;The direct-flow input end of the charging device connects the battery pack or capacitor bank, the battery pack or capacitor bank and is used for
Energy is provided to the charging device;The DC output end of the electric discharge device connects the battery pack or capacitor bank, described
Battery pack or capacitor bank are used to store the energy that the electric discharge device absorbs;And/or the system also includes energy storage device, institute
The DC output end that energy storage device is stated with the electric discharge device is connected, the energy absorbed for storing the electric discharge device, and/or
It is connected with the direct-flow input end of the charging device, for providing energy to the charging device.
In certain embodiments, the charging device includes ac input end, and the ac input end is connected with power network, institute
Stating electric discharge device includes inverter and ac output end, and the ac output end is connected with power network or AC load.
Second aspect, this application provides a kind of battery pack or the control method of capacitor bank management system, wherein, it is described
Battery pack or capacitor bank management system include:Switching network, measurement apparatus, charging device, electric discharge device, wherein, the survey
Measure device and be used for the voltage for the battery or capacitor for measuring access, the battery of access or the charge and discharge electric current of capacitor and described
The temperature of each cell or capacitor in battery pack or capacitor bank, the measurement apparatus, the charging device and described puts
Electric installation is parallel with one another;One end connection battery pack or capacitor bank of the switching network, the other end connection measurement apparatus,
The charging device and the electric discharge device, the switching network are used for the combination by internal switch, make battery pack or electric capacity
At least one battery or capacitor in device group access measurement apparatus, the charging device and the electric discharge device, described
Method includes:Obtain voltage, electric current and temperature that the measurement apparatus is measured;According to the voltage, electric current and temperature pre-established
Degree and battery or the corresponding relation of the charge value of capacitor, it is determined that the charge value of the battery of access or capacitor;If the electricity
Value is less than predetermined power threshold, then is sent to control device and open the charging device, and closes the electric discharge dress
The control signal put, if the charge value is higher than predetermined power threshold, is sent to control device and open the electric discharge
Device, and close the control signal of the charging device.
In certain embodiments, methods described also includes:The step of determining power threshold, wherein, the power threshold bag
Electricity higher limit or electricity lower limit are included, including:Obtain each battery in battery pack or capacitor bank that measurement apparatus is measured
Or voltage, electric current and the temperature of capacitor, according to the voltage, electric current and temperature pre-established and battery or the charge value of capacitor
Corresponding relation, determine the charge value of each battery or capacitor;To each battery or capacitor in battery pack or capacitor bank
Charge value be ranked up;According to the ranking results, the second high charge value is defined as electricity higher limit or low by second
Charge value be defined as electricity lower limit;And if the charge value is less than predetermined power threshold, to control
Device, which is sent, opens the charging device, and closes the control signal of the electric discharge device, if the charge value is higher than advance
The power threshold of determination, then sent to control device and open the electric discharge device, and close the control letter of the charging device
Number, including:If the charge value is less than the electricity lower limit, is sent to control device and open the charging device, and
The control signal of the electric discharge device is closed, if the charge value is higher than the electricity higher limit, is sent out to control device
The electric discharge device is opened, and closes the control signal of the charging device.
In certain embodiments, methods described also includes:The step of determining power threshold, including:Measurement apparatus is obtained to survey
Voltage, electric current and the temperature of each battery or capacitor in the battery pack or capacitor bank that measure, according to the voltage pre-established,
Electric current and temperature and battery or the corresponding relation of the charge value of capacitor, determine the charge value of each battery or capacitor;Statistics
The distribution of the charge value of each battery or capacitor;According to the statistical result, the most charge value of quantity is defined as electricity
Threshold value.
In certain embodiments, methods described also includes:The charging device is controlled to produce battery or electricity by accessing
The charge pulse currents of container, or the electric discharge device produce the battery or the discharge pulse current of capacitor by accessing;From
The charging device produces charge pulse currents, or the electric discharge device produces discharge pulse current and started, what is pre-set
Time point obtains the battery of access or voltage, electric current and the temperature of capacitor that the measurement apparatus is measured;According to it is described
Voltage, electric current and the temperature that the time point pre-set obtains, calculate the battery of access or the health status of capacitor.
In certain embodiments, battery pack or the capacitor bank management system also includes remote server;It is and described
According to voltage, electric current and the temperature obtained at the time point pre-set, the battery of access or the health of capacitor are calculated
State, in addition to:Judge whether the battery of the access or the health status of capacitor reach the criterion of acceptability pre-set;Such as
Fruit is no, then the battery or the underproof information of capacitor of the access are sent to the remote server.
In certain embodiments, battery pack or the capacitor bank management system also includes energy storage device;And the side
Method also includes:Control the energy storage device to store the energy that the electric discharge device absorbs, and/or control the energy storage device to institute
State charging device and energy is provided.
The battery pack or capacitor bank management system that the application provides, control signal is sent by processor so that control
Device control and measure device, charging device, electric discharge device and switching network, realize each battery in battery pack or capacitor bank
Or the equilibrium of capacitor electricity, the overall performance of battery pack or capacitor bank is improved, is extended in battery pack or capacitor bank
The life-span of battery or capacitor.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is to can apply to exemplary system architecture figure therein according to the application;
Fig. 2 is one embodiment structural representation of the battery pack or capacitor bank management system according to the application;
Fig. 3 A are adapted for a switch net of the battery pack or capacitor bank management system for realizing the embodiment of the present application
The structural representation of network;
Fig. 3 B are adapted for another switch of the battery pack or capacitor bank management system for realizing the embodiment of the present application
The structural representation of network;
Fig. 3 C are adapted for another switch of the battery pack or capacitor bank management system for realizing the embodiment of the present application
The structural representation of network;
Fig. 4 A are adapted for the charging module of the battery pack or capacitor bank management system for realizing the embodiment of the present application
Structural representation;
Fig. 4 B are adapted for the discharge module of the battery pack or capacitor bank management system for realizing the embodiment of the present application
Structural representation;
Fig. 5 is a schematic diagram according to the battery pack of the application or the application scenarios of capacitor bank management system;
Fig. 6 is the flow of one embodiment of the control method according to the battery pack of the application or capacitor bank management system
Figure;
Fig. 7 is adapted for the structure of the processor of the battery pack or capacitor bank management system for realizing the embodiment of the present application
Schematic diagram.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Be easy to describe, illustrate only in accompanying drawing to about the related part of invention.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 shows the example system that can apply the battery pack of the application or the embodiment of capacitor bank management system
Framework 100.
As shown in figure 1, system architecture 100 can include being provided with the equipment 101 of battery pack or capacitor bank, network 102,
Server 103.Network 102 between equipment 101 and server 103 provide communication link medium.Network 102 can wrap
Include various connection types, such as wired, wireless communication link or fiber optic cables etc..
Equipment 101 can be communication back-up source, electric automobile, electric automobile charging pile, energy-accumulating power station etc..
Server 103 can be the server analyzed information and recorded, such as to battery pack or electricity in equipment 101
The battery pack or the maintenance information of capacitor bank that container group management system is sent are analyzed and recorded.If it find that battery pack or
There is exception in the maintenance information of capacitor bank, can generate the position of equipment including exception or the prompting message of number information,
The remote management of battery pack or capacitor bank is realized with this.Server 103 can also be according to voltage, electric current, temperature of upload etc.
Data, calculate threshold voltage or electricity threshold values, descend into processor 206, then by processor 206 according to above-mentioned threshold voltage or
Electricity threshold values is operated.In addition, server 103 can directly descend teletype command, control processor 206 carries out balanced or other behaviour
Make.
It should be noted that battery pack or capacitor bank management system that the embodiment of the present application is provided are typically by equipment
101 are performed, and correspondingly, each part of battery pack or capacitor bank management system is typically respectively arranged in equipment 101.
It should be understood that the number of the equipment, network and server in Fig. 1 is only schematical., can according to needs are realized
With with any number of equipment, network and server.
With continued reference to Fig. 2, Fig. 2 shows the structural representation of one embodiment of battery pack or capacitor bank management system
Figure.The battery pack or capacitor bank management system 200 of the present embodiment include measurement apparatus 201, for measure access battery or
Each monomer electricity in the charge and discharge electric current and above-mentioned battery pack or capacitor bank of the voltage of capacitor, the battery accessed or capacitor
Pond or the temperature of capacitor;Charging device 202, charged for the battery to access or capacitor;Electric discharge device 203, use
Discharged in battery or capacitor to access, above-mentioned electric discharge device 203 and above-mentioned charging device 202, above-mentioned measurement apparatus
201 is parallel with one another;Switching network 204, one end connection battery pack or capacitor bank, the other end connect above-mentioned measurement apparatus 201, on
Charging device 202 and above-mentioned electric discharge device 203 are stated, for the combination by internal switch, is made in battery pack or capacitor bank
At least one battery or capacitor access above-mentioned measurement apparatus 201, above-mentioned charging device 202 and above-mentioned electric discharge device 203;Control
Device 205, with processor 206 and above-mentioned switching network 204, above-mentioned measurement apparatus 201, above-mentioned charging device 202 and above-mentioned
Electric discharge device 203 connects, the control signal sent for receiving above-mentioned processor 206, and according in the control of above-mentioned control signal
State the opening and closing of the internal switch of switching network 204, above-mentioned measurement apparatus 201, above-mentioned charging device 202 and above-mentioned electric discharge device 203
Switch;Processor 206, it is connected with above-mentioned measurement apparatus 201 and above-mentioned control device 205, for obtaining above-mentioned measurement dress
201 voltages measured, electric current and temperature are put, according to the voltage, electric current and temperature pre-established and battery or the electricity of capacitor
The corresponding relation of value, it is determined that the charge value of the battery of access or capacitor, if above-mentioned charge value is less than predetermined electricity
Threshold value, then sent to control device 205 and open above-mentioned charging device 202, and close the control letter of above-mentioned electric discharge device 203
Number, if above-mentioned charge value is higher than predetermined power threshold, is sent to control device 205 and open above-mentioned electric discharge device 203,
And close the control signal of above-mentioned charging device 202.
In some optional implementations of the present embodiment, pre-establish above-mentioned voltage, electric current and temperature and battery or
The step of corresponding relation of the charge value of capacitor, including:The charging of predefined size is provided for test battery or test capacitors
Electric current or discharge current, wherein, in above-mentioned test battery or testing capacitor and above-mentioned battery in battery pack or above-mentioned capacitor bank
Capacitor model is identical.Measure and record the voltage, above-mentioned test battery or test electricity of above-mentioned test battery or test capacitors
The internal resistance of the temperature of container, above-mentioned test battery or test capacitors;Above-mentioned test battery or test are calculated according to above-mentioned internal resistance
The charge value of capacitor, using above-mentioned charge value as the charging current or discharge current with above-mentioned predefined size, above-mentioned test electricity
Charge value corresponding to the voltage and the temperature of above-mentioned test battery or test capacitors of pond or test capacitors.Charging current or
The size of discharge current can be the size of charging device 202,203 available charging current of electric discharge device or discharge current.
It can be gathered according to cycle regular hour and measure and record the voltage of above-mentioned test battery or test capacitors, above-mentioned test electricity
The internal resistance of the temperature of pond or test capacitors, above-mentioned test battery or test capacitors, multiple different voltages can also be chosen
Test battery or test capacitors, the temperature for testing battery or test capacitors can be its surface temperature or its
The temperature of electrode.Above-mentioned test battery or the charge value of test capacitors can calculate according to above-mentioned internal resistance, can also be by putting
The modes such as electrical testing determine.
In the present embodiment, above-mentioned power threshold can be electricity higher limit or electricity lower limit.Processor
206 can obtain the voltage of each battery or capacitor in the battery pack or capacitor bank that measurement apparatus 201 is measured, electric current and
Temperature, according to the voltage, electric current and temperature pre-established and battery or the corresponding relation of the charge value of capacitor, determine each electricity
Pond or the charge value of capacitor;The charge value of each battery or capacitor in battery pack or capacitor bank is ranked up;According to
Above-mentioned ranking results, the second high charge value is defined as electricity higher limit or next to the lowest charge value is defined as electricity lower limit
Value, wherein, battery corresponding to battery corresponding to highest charge value or capacitor, minimum charge value or capacitor can be one
It is individual or multiple, it is electrically operated charge and discharge simultaneously or successively can be carried out to it so that the second high charge value or next to the lowest charge value
Change, i.e., power threshold changes, and selection again carries out the battery or capacitor of charge or discharge operation, until all
Battery or capacitor charge value are identical.It can also be the charge value for calculating all batteries or capacitor in battery pack or capacitor bank
Average value, using average value as power threshold, or using the most charge value of occurrence number in charge value as power threshold.
For example, the current storage electricity of each battery or capacitor is respectively 200Ah, 200Ah, 200Ah in battery pack or capacitor bank,
200Ah, 230Ah, 220Ah, then power threshold 220Ah, electric discharge behaviour is carried out to the battery or capacitor that charge value is 230Ah
Make.
In some optional implementations of the present embodiment, processor 206 can also obtain measurement apparatus 201 and collect
Battery pack or capacitor bank in each cell or capacitor voltage.By electric discharge device 203 to highest voltage pair
The battery or capacitor answered carry out discharge operation, equally can also be by charging device 202 to battery corresponding to minimum voltage
Or capacitor carries out charging operations.Wherein, battery corresponding to battery corresponding to highest voltage or capacitor, minimum voltage or
Capacitor can be one or more, and it is electrically operated simultaneously or successively can to carry out charge and discharge to it, it is no longer turned into highest electricity
Battery or capacitor corresponding to battery corresponding to pressure or capacitor, minimum voltage, again selection carry out charge or discharge operation
Battery or capacitor, until all batteries or condenser voltage are identical.For example, in battery pack or capacitor bank each battery or
The voltage of capacitor is respectively 4V, 4V, 4V, 4V, 6V, 5V, then carries out discharge operation to the battery or capacitor that voltage is 6V.
In the present embodiment, if battery pack or capacitor bank are series battery or capacitor bank, as an example, switch net
The battery symbol that the internal structure of network 204 can be found in Fig. 3 A, Fig. 3 B, Fig. 3 C, Fig. 3 A, Fig. 3 B, Fig. 3 C can also represent electric capacity
Device.Switching network 204 connects each cell or capacitor being connected in series in series battery or capacitor bank, passes through inside
What is switched is appropriately combined, can be by the positive and negative electrode of a certain section cell or capacitor is connected respectively to anode interface B+, negative pole connects
Mouth B-.B+ and B- is connected with measurement apparatus 201, charging device 202 and electric discharge device 203.As shown in Figure 3A, if battery pack or electricity
The cell or capacitor being connected in series in container group are even number, to by the positive and negative electrode of cell or capacitor (m)
It is connected respectively with B+, B-, then needs closure switch S (2n), S (2n-1), SE1 and SO0.To by cell or capacitor
(m-1) positive and negative electrode is connected with B+, B- respectively, then needs closure switch S (2n-1), S (2n-2), SO1 and SE0.Other monomers
The connected mode of battery or capacitor is by that analogy.As shown in Figure 3 B, if the monomer electricity being connected in series in battery or capacitor bank
Pond or capacitor are odd number, to the positive and negative electrode of cell or capacitor (m) is connected with B+, B- respectively, then need to close
Combination switch S (2n+1), S (2n), SO1 and SE0.To by the positive and negative electrode of cell or capacitor (m-1) respectively with B+, B-
Connection, then need closure switch S (2n), S (2n-1), SE1 and SO0.The connected mode of other cells or capacitor is with this
Analogize.As shown in Figure 3 C, to the positive and negative electrode of cell or capacitor (m) is connected with B+, B- respectively, then need to close
Switch S (m)+and S (m)-.To the positive and negative electrode of cell or capacitor (m-1) is connected with B+, B- respectively, then need to close
Combination switch S (m-1)+and S (m-1)-.The connected mode of other cells or capacitor is by that analogy.Realize switching network 204
The switch connected mode of function also have many kinds, its purpose be exactly will at least one section cell or capacitor pass through switch connection
To measurement apparatus 201, charging device 202 and electric discharge device 203.
In some optional implementations of the present embodiment, above-mentioned battery pack or capacitor bank are connected with power supply or negative
Carry, above-mentioned power supply is used to charge to above-mentioned battery pack capacitor bank, and above-mentioned load is used to obtain above-mentioned battery pack or electric capacity
The electric energy that device group provides.As shown in figure 5, battery pack or capacitor bank that battery pack or capacitor bank managing device 200 manage
502 battery symbols that can be connected with charge power supply 501 or load in 503, Fig. 5 can also represent capacitor.
When battery pack or capacitor bank 502 are connected with charge power supply 501, battery pack or capacitor bank are in charging shape
State, battery pack or capacitor bank managing device 200 are used in response to detecting in battery pack or capacitor bank 502 there is battery or electricity
Container is needed to carry out equalization discharge, and discharge operation is carried out to it.Have by the electric current of the battery or capacitor that carry out discharge operation
Two parts form, and a part is the charging current I that charge power supply 501 provides1, another part is to battery pack or capacitor bank pipe
Manage the discharge current I that device 200 provides2, the electric current by the battery or capacitor that carry out discharge operation is I1With I2It
Difference.According to I1、I2Magnitude relationship determine above-mentioned battery or capacitor generally in charging or discharge condition.For example, charging electricity
The charging current I that source 501 provides to battery pack or capacitor bank 5021For 100A, each electricity in battery pack or capacitor bank 502
The current storage electricity of pond or capacitor is respectively 400Ah, 400Ah, 400Ah, 400Ah, 420Ah, 400Ah.Battery pack or electricity
The battery or capacitor that container group management apparatus 200 is 410Ah to current storage electricity carry out discharge operation, if discharge current
For I2For 20A, after 1 hour, all battery or capacitor electricity are all 500Ah, if discharge current is I2For 200A, 0.1 hour
Afterwards, all battery or capacitor electricity are all 410Ah, and the purpose of equilibrium is realized with this.
When battery pack or capacitor bank 502 are connected with load 503, battery pack or capacitor bank are in discharge condition, electricity
Pond group or capacitor bank managing device 200 are used in response to detecting battery or capacitor in battery pack or capacitor bank 502
Charge balancing is needed, charging operations are carried out to it.There is two parts group by the electric current of the battery or capacitor that carry out charging operations
Into a part is the discharge current I provided to load 5033, another part is that battery pack or capacitor bank managing device 200 carry
The charging current I of confession4, the electric current by the battery or capacitor that carry out charging operations is I3With I4Difference.According to I3、I4's
Magnitude relationship determines above-mentioned battery or capacitor generally in charging or discharge condition.For example, battery pack or capacitor bank 502
The discharge current I provided to load 5033For 100A, the current storage of each battery or capacitor in battery pack or capacitor bank 502
It is respectively 400Ah, 400Ah, 400Ah, 400Ah, 380Ah, 400Ah to deposit electricity.Battery pack or capacitor bank managing device 200 are right
The battery or capacitor that current storage electricity is 380Ah carry out charging operations, if charging current is I2For 20A, after 1 hour,
All battery or capacitor electricity are all 300Ah, if discharge current is I2For 200A, after 0.1 hour, all batteries or electricity
Container electricity is all 390Ah, and the purpose of equilibrium is realized with this.For lead-acid battery, because lead-acid battery is in back-up source system
It is typically in long-term floating charge state in system, therefore the equilibrium to lead-acid battery in charging process does not often have an effect, but
In discharge process, can give in battery pack the relatively low cell of voltage provide larger euqalizing current (>40A), therefore can be with
The discharge current of the relatively low cell of voltage is reduced in discharge process.Because discharge current reduces, discharge time necessarily prolongs
It is long, with this effective life-span for extending lead-acid battery.
In some optional implementations of the present embodiment, above-mentioned charging device 202 is additionally operable to produce charging pulse electricity
Stream, above-mentioned electric discharge device 203 are additionally operable to produce discharge pulse current so that above-mentioned processor 206 is sent to control device 205
Above-mentioned charging device 202 is opened charge pulse currents are produced or open above-mentioned electric discharge device 203 to produce discharge pulse current
Start, obtain voltage, electric current and temperature that above-mentioned measurement apparatus 201 is measured.
In some optional implementations of the present embodiment, above-mentioned processor 206 is connected by network and remote server
Connect, above-mentioned remote server is used to obtain voltage, electric current and temperature that above-mentioned processor 206 is sent etc., and calculates the electricity of access
Pond or the health status of capacitor.The health status of battery or capacitor (SOH) is in battery pack or capacitor bank management system
Important parameter, accurate perception SOH help to understand battery pack or the health of each cell of capacitor bank or capacitor in time
State, the cell or capacitor of aging are changed in time, can improve the bulk life time of battery pack or capacitor bank.Battery or
The SOH of capacitor in voltage pulsation just, after discharge pulse current excitation with being inversely proportional, i.e. voltage pulsation is bigger, and SOH is smaller,
The health degree of battery or capacitor is lower;Voltage pulsation is smaller, and SOH is higher, and the health degree of battery or capacitor is better.Institute
Need the relating to parameters such as size and the charge value of battery or capacitor, the temperature of charge and discharge pulse current.The standard value pre-set
Can be advance progress SOH test experiments.Charge pulse currents or discharge pulse current can be produced, is passed to known to more piece
SOH with battery pack or the battery or capacitor model identical battery or capacitor sample of capacitor bank management system management,
The voltage curve of battery or capacitor sample when record passes through pulse current.Some time points can be chosen on curve, by this
For voltage corresponding to a little time points as standard value, the time point of selection is preset time point.It again may be by machine learning
Method, the voltage curve training SOH measured using experiment are determined model, using the model trained, determine that processor 206 is sent
Voltage corresponding to the SOH of battery or capacitor.
In some optional implementations of the present embodiment, it can also be previously stored with and pre-set in processor 206
Standard value, processor 206 can be with the SOH value of comparing calculation and the standard value pre-set, to determine the battery or electricity of access
The health status of container, if health status is less than the health status of battery or capacitor normal operation, on remote server
Report battery or capacitor need the information changed.
In some optional implementations of the present embodiment, above-mentioned charging device 202 includes direct-flow input end, above-mentioned to put
Electric installation 203 includes DC output end.
In some optional implementations of the present embodiment, the direct-flow input end of above-mentioned charging device 202 can connect
The whole group battery pack or capacitor bank that this battery pack or capacitor bank management system are managed;The above-mentioned direct current of electric discharge device 203 is defeated
Whole group battery pack or capacitor bank that this battery pack or capacitor bank management system are managed can be connected by going out end.
In some optional implementations of the present embodiment, as shown in figure 4, said system also includes energy storage device, on
The DC output end that energy storage device is stated with above-mentioned electric discharge device 203 is connected, the energy absorbed for storing above-mentioned electric discharge device 203
Amount, and/or be connected with the direct-flow input end of above-mentioned charging device 202, for providing energy to above-mentioned charging device 202.It is above-mentioned
The DC output end of electric discharge device 203 can also connect DC load.By the setting of energy storage device be effectively utilized battery or
Relatively unnecessary electricity in capacitor, if it find that the voltage or charge value of certain cell or capacitor are higher, system is to store up
Energy device is intermediate member, and the electricity in the batteries or capacitor is discharged into other load equipments by charge and discharge module
Or energy storage device, improve the utilization ratio of battery or capacitor.
In some optional implementations of the present embodiment, it is (including super that above-mentioned energy storage device includes battery and/or electric capacity
Level electric capacity).Battery or capacitor can also be the battery pack or capacitor bank of multiple batteries or capacitor serial or parallel connection composition.
Ultracapacitor is a kind of electrochemical element come energy storage by polarized electrolytic matter, be it is a kind of between traditional capacitor and battery it
Between, have property power supply, rely primarily on electric double layer and Redox pseudocapacitance electric charge storage electric energy.But in its energy storage
Process does not chemically react, and this thermal energy storage process is reversible, and ultracapacitor can be hundreds thousand of times with repeated charge.
In some optional implementations of the present embodiment, as shown in figure 4, above-mentioned charging device 202 is defeated including exchanging
Enter end, above-mentioned ac input end is connected with power network, and above-mentioned electric discharge device 203 includes inverter and ac output end, above-mentioned exchange
Output end is connected with power network or AC load.When above-mentioned ac output end is connected with power network, by inverter to power network feedback energy
Amount.
The battery pack or capacitor bank management system that above-described embodiment of the application provides, control letter is sent by processor
Number so that control device control and measure device, charging device, electric discharge device and switching network, realize battery pack or capacitor
The equilibrium of each battery or capacitor electricity, improves the overall performance of battery pack or capacitor bank, extends battery pack in group
Or the life-span of battery or capacitor in capacitor bank.
Below with reference to Fig. 6, it illustrates the control method of the battery pack according to the application or capacitor bank management system
The flow 600 of one embodiment.
Battery pack or capacitor bank management system include switching network, measurement apparatus, charging device and electric discharge device, described
Measurement apparatus be used for measure access battery or capacitor voltage, access battery or capacitor charge and discharge electric current and
The temperature of each cell or capacitor in battery pack or capacitor bank is stated, measurement apparatus, charging device and electric discharge device are mutual
Parallel connection, above-mentioned switching network, one end connection battery pack or capacitor bank, the other end connect above-mentioned measurement apparatus, above-mentioned charging dress
Put and be used for the combination by internal switch with above-mentioned electric discharge device, above-mentioned switching network, make in battery pack or capacitor bank extremely
Few a battery or capacitor access above-mentioned measurement apparatus, above-mentioned charging device and above-mentioned electric discharge device, above-mentioned battery pack or electricity
The control method of container group management system, comprises the following steps:
Step 601, voltage, electric current and the temperature that measurement apparatus is measured are obtained.
In the present embodiment, the electronic equipment of the control method of battery pack or capacitor bank management system operation thereon can
To be various processors and controller, for example, single-chip microcomputer, programmable logic controller (PLC) (Programmable Logic
Controller, PLC), or other programming devices.Processor obtains the battery or capacitor for the access that measurement apparatus is measured
Voltage and its charge and discharge electric current, the charge and discharge electric current of battery pack or capacitor bank, and the temperature of each cell or capacitor
Degree.The battery or capacitor of access are the battery or capacitor for referring to the accession to measurement apparatus, due to measurement apparatus, charging device and are put
Electric installation is parallel with one another, and it can also be the battery for accessing charging device and electric discharge device to access the battery of measurement apparatus or capacitor
Or capacitor.Processor can be with the switch of control and measure device, charging device and electric discharge device with the battery or electric capacity to access
Device carries out different operations.
Step 602, closed according to the voltage, electric current and temperature pre-established is corresponding with the charge value of battery or capacitor
System, it is determined that the charge value of the battery of access or capacitor.
In the present embodiment, in the electronic equipment of the control method of battery pack or capacitor bank management system operation thereon
The voltage pre-established, electric current and temperature and battery or the corresponding relation of the charge value of capacitor can be stored with, in step
601, after getting voltage, electric current and temperature that measurement apparatus is measured, the voltage pre-established, electric current and temperature can be searched
With battery or the corresponding relation of the charge value of capacitor, it is determined that access battery or capacitor charge value.
The step of pre-establishing the corresponding relation of the charge value of above-mentioned voltage, electric current and temperature and battery or capacitor can be with
It is:There is provided the charging current or discharge current of predefined size for test battery or test capacitors, wherein, above-mentioned test battery or
Testing capacitor is identical with capacitor model in above-mentioned battery in battery pack or above-mentioned capacitor bank.Measure and record above-mentioned test electricity
The voltage of pond or test capacitors, the temperature of above-mentioned test battery or test capacitors, above-mentioned test battery or test capacitors
Internal resistance;Above-mentioned test battery or the charge value of test capacitors are calculated according to above-mentioned internal resistance, using above-mentioned charge value as with it is upper
State the charging current or discharge current of predefined size, the voltage of above-mentioned test battery or test capacitors and above-mentioned test battery or
Charge value corresponding to the temperature of test capacitors.Can also constantly be recorded in real work new voltage, electric current and temperature with
The corresponding relation of the charge value of battery or capacitor, improve the degree of accuracy for determining charge value.
Step 603, if charge value is less than predetermined power threshold, unlatching charging device is sent to control device,
And the control signal of electric discharge device is closed, if charge value is higher than predetermined power threshold, is sent out to control device
Open electric discharge device, and the control signal of charge closing device.
In the present embodiment, the electronic equipment of the control method of battery pack or capacitor bank management system operation thereon can
It is balanced to be carried out to some battery or capacitor with the charge value determined in comparison step 602 and predetermined power threshold
Operation.
In some optional implementations of the present embodiment, the control method fortune of battery pack or capacitor bank management system
The electronic equipment of row thereon can also obtain each battery or electric capacity in battery pack or capacitor bank that measurement apparatus is measured
The voltage of device and sequence;For example, the voltage of each battery or capacitor is respectively 3V, 4V, 4V in battery pack or capacitor bank,
4V, 6V, 5V, then charge balancing should be carried out to the battery or capacitor of 3V voltages;The battery or capacitor of 6V voltages are entered
Row equalization discharge.Generally, voltage can reflect the size of electricity, but accuracy cannot ensure, therefore also need
Consider the parameter such as temperature and charge and discharge electric current.
In some optional implementations of the present embodiment, the above method also includes:The step of determining power threshold, its
In, power threshold includes electricity higher limit or electricity lower limit, including:Obtain battery pack or the capacitor that measurement apparatus is measured
Voltage, electric current and the temperature of each battery or capacitor in group, according to voltage, electric current and the temperature and battery or electricity pre-established
The corresponding relation of the charge value of container, determine the charge value of each battery or capacitor;To each in battery pack or capacitor bank
The charge value of battery or capacitor is ranked up;According to ranking results, by the second high charge value be defined as electricity higher limit or
Next to the lowest charge value is defined as electricity lower limit;And if charge value is less than predetermined power threshold, to control
Device sends unlatching charging device, and closes the control signal of electric discharge device, if charge value is higher than predetermined electricity threshold
Value, then send unlatching electric discharge device, and the control signal of charge closing device to control device, including:If charge value is less than
Electricity lower limit, then unlatching charging device is sent to control device, and close the control signal of electric discharge device, if charge value is high
In electricity higher limit, then unlatching electric discharge device, and the control signal of charge closing device are sent to control device.It is for example, electric
The current storage electricity of each battery or capacitor is respectively 380Ah, 390Ah, 400Ah, 400Ah in pond group or capacitor bank,
420Ah, 410Ah, then electricity higher limit can be 410Ah, and electricity lower limit can be 390Ah, can be first to 380Ah's
Battery or capacitor carry out charging operations until its electricity is changed into 390Ah, and the battery or capacitor to 420Ah carry out discharge operation
Until its electricity is changed into 410Ah, the current storage electricity of each battery or capacitor is changed into battery pack or capacitor bank
390Ah, 390Ah, 400Ah, 400Ah, 410Ah, 410Ah, electricity higher limit, electricity lower limit is all changed into 400Ah, to 390Ah
Battery or capacitor carry out charging operations and be changed into 400Ah until its electricity, the battery or capacitor to 410Ah carry out electric discharge behaviour
Make until its electricity is changed into 400Ah, with this, the current storage electricity of all batteries or capacitor is equal in battery pack or capacitor bank
For 400Ah.
In some optional implementations of the present embodiment, the above method also includes:The step of determining power threshold, bag
Include:Voltage, electric current and the temperature of each battery or capacitor in battery pack or capacitor bank that measurement apparatus is measured are obtained, is pressed
According to the voltage, electric current and temperature pre-established and battery or the corresponding relation of the charge value of capacitor, each battery or electricity are determined
The charge value of container;Count the distribution of the charge value of each battery or capacitor;According to statistical result, by the most electricity of quantity
Value is defined as power threshold.For example, the current storage electricity of each battery or capacitor is respectively in battery pack or capacitor bank
380Ah, 400Ah, 400Ah, 400Ah, 420Ah, 400Ah, then power threshold 400Ah, can be to 380Ah battery or electricity
Container carries out charging operations, and the battery or capacitor to 420Ah carry out discharge operation, until its electricity is 400Ah.
In the present embodiment, battery pack or capacitor bank can connect power supply or load, and above-mentioned power supply is used for above-mentioned electricity
Pond group or capacitor bank are charged, and above-mentioned load is used to obtain the electric energy that above-mentioned battery pack or capacitor bank provide.Work as battery
When group or capacitor bank are in charged state or discharge condition, balance policy can change with the progress of charging and discharging,
Balance policy includes carrying out charging operations or discharge operation, charge/discharge time, the size of charging and discharging currents.For example, charging electricity
Source is 100A to the charging current that battery pack provides, and the current storage electricity of each battery or capacitor is respectively in battery pack
440Ah, 400Ah, 400Ah, 420Ah.If discharge current is I2It is small for 0.1 to the discharge time of 420Ah battery for 200A
When, the discharge time to 440Ah battery is 0.2 hour.
In some optional implementations of the present embodiment, the above method also includes:Control charging device, which produces, to be passed through
The battery of access or the charge pulse currents of capacitor, or electric discharge device produce the battery or the electric discharge arteries and veins of capacitor by accessing
Rush electric current;Charge pulse currents are produced from charging device, or electric discharge device produces discharge pulse current and started, what is pre-set
Time point obtains the battery of access or voltage, electric current and the temperature of capacitor that measurement apparatus is measured;According to pre-setting
Time point obtain voltage, electric current and temperature, calculate the battery of access or the health status of capacitor.
In some optional implementations of the present embodiment, battery pack or capacitor bank management system also include long-range clothes
Business device;And according to voltage, electric current and the temperature obtained at time point for pre-setting, calculate the battery or capacitor of access
Health status, in addition to:Judge whether the battery of access or the health status of capacitor reach the criterion of acceptability pre-set;Such as
Fruit is no, then the battery or the underproof information of capacitor of access are sent to remote server.
In some optional implementations of the present embodiment, battery pack or capacitor bank management system also include energy storage and filled
Put;And method also includes:The energy for controlling energy storage device storage electric discharge device to absorb, and/or energy storage device is controlled to charging
Device provides energy.
Below with reference to Fig. 7, it illustrates suitable for for realizing the battery pack of the embodiment of the present application or capacitor bank management system
The structural representation of the processor 206 of system.
As shown in fig. 7, processor 206 includes CPU (CPU) 2061, it can be according in storage part 2066
Program and perform various appropriate actions and processing.CPU2061 passes through bus 2062 with input/output (I/O) interface 2063
It is connected.
I/O interfaces 2063 are connected to lower component:Importation 2064;Output par, c 2065;Storage including hard disk etc.
Part 2066;And the communications portion 2067 of the NIC including LAN card, modem etc..Communications portion
2067 perform communication process via the network of such as internet.
Especially, in accordance with an embodiment of the present disclosure, it may be implemented as computer above with reference to the process of flow chart description
Software program.For example, embodiment of the disclosure includes a kind of computer program product, it includes being tangibly embodied in machine readable
Computer program on medium, the computer program include the program code for being used for the method shown in execution flow chart.
Flow chart in accompanying drawing, it is illustrated that according to the system of the various embodiments of the application, method and computer program product
Architectural framework in the cards, function and operation.At this point, each square frame in flow chart can represent a module,
A part for program segment or code, a part for the module, program segment or code include one or more and are used to realize rule
The executable instruction of fixed logic function.It should also be noted that at some as the function of in the realization replaced, being marked in square frame
Can also be with different from the order marked in accompanying drawing generation.For example, two square frames succeedingly represented can essentially be basic
It is performed in parallel, they can also be performed in the opposite order sometimes, and this is depending on involved function.It is also noted that
The combination of the square frame in each square frame and flow chart in flow chart, the special of function or operation as defined in performing can be used
Hardware based system realize, or can be realized with the combination of specialized hardware and computer instruction.
Present invention also provides a kind of nonvolatile computer storage media, the nonvolatile computer storage media can be with
It is the nonvolatile computer storage media described in above-described embodiment included in device;Can also be individualism, without
The nonvolatile computer storage media being incorporated in terminal.Above-mentioned nonvolatile computer storage media is stored with one or more
Individual program, when one or more of programs are performed by an equipment so that the equipment:The measurement apparatus is obtained to survey
Voltage, electric current and the temperature measured;According to the voltage, electric current and temperature pre-established and the charge value of battery or capacitor
Corresponding relation, it is determined that the charge value of the battery of access or capacitor;If the charge value is less than predetermined power threshold,
Sent to control device and open the charging device, and close the control signal of the electric discharge device, if the charge value is high
In predetermined power threshold, then sent to control device and open the electric discharge device, and close the charging device
Control signal.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (13)
1. a kind of battery pack or capacitor bank management system, it is characterised in that the system includes:
Measurement apparatus, for measuring the charge and discharge electric current of the battery of access or the voltage of capacitor, the battery of access or capacitor
With the temperature of each cell or capacitor in the battery pack or capacitor bank;
Charging device, charged for the battery to access or capacitor;
Electric discharge device, discharged for the battery to access or capacitor, it is the electric discharge device and the charging device, described
Measurement apparatus is parallel with one another;
Switching network, one end connection battery pack or capacitor bank, the other end connect measurement apparatus, the charging device and the institute
Electric discharge device is stated, for the combination by internal switch, makes at least one battery or capacitor in battery pack or capacitor bank
Access the measurement apparatus, the charging device and the electric discharge device;
Control device, with processor and the switching network, the measurement apparatus, the charging device and the electric discharge device
Connection, the control signal sent for receiving the processor, and controlled according to the control signal inside the switching network
The opening and closing of switch, the switch of the measurement apparatus, the charging device and the electric discharge device;
Processor, it is connected with the measurement apparatus and the control device, the electricity measured for obtaining the measurement apparatus
Pressure, electric current and temperature, according to the voltage, electric current and temperature pre-established and battery or the corresponding relation of the charge value of capacitor,
It is determined that the battery of access or the charge value of capacitor, if the charge value is less than predetermined power threshold, are filled to control
Put to send and open the charging device, and close the control signal of the electric discharge device, if the charge value is higher than true in advance
Fixed power threshold, then sent to control device and open the electric discharge device, and close the control signal of the charging device.
2. system according to claim 1, it is characterised in that pre-establish the voltage, electric current and temperature and battery or
The step of corresponding relation of the charge value of capacitor, including:
The charging current or discharge current of predefined size are provided for test battery or test capacitors, wherein, the test battery
Or testing capacitor is identical with capacitor model in the battery in battery pack or the capacitor bank;
Measure and record it is described test battery or test capacitors voltage, it is described test battery or test capacitors temperature,
The internal resistance of the test battery or test capacitors;
According to the internal resistance calculate it is described test battery or test capacitors charge value, using the charge value as with it is described pre-
Determine charging current or discharge current, the voltage of the test battery or test capacitors and the test battery or test of size
Charge value corresponding to the temperature of capacitor.
3. system according to claim 1, it is characterised in that the battery pack or capacitor bank are connected with power supply or negative
Carry, the power supply is used to charge to the battery pack or capacitor bank, described to load for obtaining the battery pack or electricity
The electric energy that container group provides.
4. according to the system any one of claim 1-3, it is characterised in that the charging device is additionally operable to produce charging
Pulse current, the electric discharge device are additionally operable to produce discharge pulse current so that the processor is sent out to control device
Open the charging device and started with producing charge pulse currents or opening the electric discharge device with producing discharge pulse current, obtained
Voltage, electric current and the temperature that the measurement apparatus is measured.
5. system according to claim 4, it is characterised in that the processor is connected by network with remote server,
Voltage, electric current and the temperature that the remote server is sent for obtaining the processor, the voltage sent to the processor,
Electric current and temperature are analyzed, to determine the health status of the battery of access or capacitor.
6. according to the system any one of claim 1-3, it is characterised in that the charging device inputs including direct current
End, the electric discharge device include DC output end;
The direct-flow input end of the charging device connects the battery pack or capacitor bank, the battery pack or capacitor bank and is used for
Energy is provided to the charging device;The DC output end of the electric discharge device connects the battery pack or capacitor bank, described
Battery pack or capacitor bank are used to store the energy that the electric discharge device absorbs;
And/or the system also includes energy storage device, the energy storage device is connected with the DC output end of the electric discharge device, is used
It is connected in the energy for storing the electric discharge device absorption, and/or with the direct-flow input end of the charging device, for being filled to described
Electric installation provides energy.
7. according to the system any one of claim 1-3, it is characterised in that the charging device includes exchange and inputted
End, the ac input end are connected with power network, and the electric discharge device includes inverter and ac output end, the ac output end
It is connected with power network or AC load.
8. the control method of a kind of battery pack or capacitor bank management system, it is characterised in that the battery pack or capacitor bank
Management system includes:Switching network, measurement apparatus, charging device, electric discharge device, wherein, the measurement apparatus connects for measurement
Battery or the voltage of capacitor, the battery of access or the charge and discharge electric current and the battery pack or capacitor bank of capacitor entered
In each cell or capacitor temperature, the measurement apparatus, the charging device and the electric discharge device are parallel with one another;Institute
One end connection battery pack or capacitor bank, the other end for stating switching network connect measurement apparatus, the charging device and the institute
State electric discharge device, the switching network is used for the combination by internal switch, makes at least one in battery pack or capacitor bank
Battery or capacitor, which access the measurement apparatus, the charging device and the electric discharge device, methods described, to be included:
Obtain voltage, electric current and temperature that the measurement apparatus is measured;
According to the voltage, electric current and temperature pre-established and battery or the corresponding relation of the charge value of capacitor, it is determined that access
The charge value of battery or capacitor;
If the charge value is less than predetermined power threshold, is sent to control device and open the charging device, and
The control signal of the electric discharge device is closed, if the charge value is higher than predetermined power threshold, is sent out to control device
Go out and open the electric discharge device, and close the control signal of the charging device.
9. according to the method for claim 8, it is characterised in that methods described also includes:
The step of determining power threshold, wherein, the power threshold includes electricity higher limit or electricity lower limit, including:
Voltage, electric current and the temperature of each battery or capacitor in battery pack or capacitor bank that measurement apparatus is measured are obtained,
According to the voltage, electric current and temperature that pre-establish and battery or the corresponding relation of the charge value of capacitor, determine each battery or
The charge value of capacitor;
The charge value of each battery or capacitor in battery pack or capacitor bank is ranked up;
According to the ranking results, the second high charge value is defined as electricity higher limit or is defined as next to the lowest charge value
Electricity lower limit;And
If the charge value is less than predetermined power threshold, is sent to control device and open the charging device,
And the control signal of the electric discharge device is closed, if the charge value is higher than predetermined power threshold, is filled to control
Put to send and open the electric discharge device, and close the control signal of the charging device, including:
If the charge value is less than the electricity lower limit, is sent to control device and open the charging device, and closed
The control signal of the electric discharge device, if the charge value is higher than the electricity higher limit, is sent to control device and open institute
Electric discharge device is stated, and closes the control signal of the charging device.
10. according to the method for claim 8, it is characterised in that methods described also includes:
The step of determining power threshold, including:
Voltage, electric current and the temperature of each battery or capacitor in battery pack or capacitor bank that measurement apparatus is measured are obtained,
According to the voltage, electric current and temperature that pre-establish and battery or the corresponding relation of the charge value of capacitor, determine each battery or
The charge value of capacitor;
Count the distribution of the charge value of each battery or capacitor;
According to the statistical result, the most charge value of quantity is defined as power threshold.
11. according to the method any one of claim 8-10, it is characterised in that methods described also includes:
The charging device is controlled to produce battery or the charge pulse currents of capacitor by accessing, or electric discharge device production
Raw battery or the discharge pulse current of capacitor by accessing;
Charge pulse currents are produced from the charging device, or the electric discharge device produces discharge pulse current and started, advance
The time point of setting obtains the battery of access or voltage, electric current and the temperature of capacitor that the measurement apparatus is measured;
According to voltage, electric current and the temperature obtained at time point for pre-setting, the battery or capacitor of access are calculated
Health status.
12. according to the method for claim 11, it is characterised in that battery pack or the capacitor bank management system also includes
Remote server;And
Voltage, electric current and the temperature obtained described in the basis at the time point pre-set, calculate the battery or electric capacity of access
The health status of device, in addition to:
Judge whether the battery of the access or the health status of capacitor reach the criterion of acceptability pre-set;
If it is not, then the battery or the underproof information of capacitor of the access are sent to the remote server.
13. according to the method any one of claim 8-10, it is characterised in that battery pack or the capacitor bank management
System also includes energy storage device;And
Methods described also includes:
The energy storage device is controlled to store the energy that the electric discharge device absorbs, and/or the control energy storage device fills to described
Electric installation provides energy.
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CN108258756A (en) * | 2017-12-31 | 2018-07-06 | 东莞留云榭软件科技有限公司 | A kind of more power module mixed proportion output systems and its control method |
CN114115006A (en) * | 2021-11-17 | 2022-03-01 | 南方电网科学研究院有限责任公司 | Energy storage control system |
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