CN208421191U - The test macro of battery pack - Google Patents
The test macro of battery pack Download PDFInfo
- Publication number
- CN208421191U CN208421191U CN201821253404.1U CN201821253404U CN208421191U CN 208421191 U CN208421191 U CN 208421191U CN 201821253404 U CN201821253404 U CN 201821253404U CN 208421191 U CN208421191 U CN 208421191U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- tested
- host computer
- module
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model embodiment provides a kind of test macro of battery pack, including two-way DC/DC converter, AC/DC power module, controller, host computer, the first battery pack to be tested and the second battery pack to be tested；One end of the two-way DC/DC converter is connect with one end of the controller, the other end of the two-way DC/DC converter is connect with the described first battery pack to be tested, and the other end of the controller is connect with the described second battery pack to be tested and the AC/DC power module；The host computer is connect with the controller, first battery pack, the second battery pack to be tested and the AC/DC power module to be tested, and the controller, first battery pack, the second battery pack to be tested and the AC/DC power module to be tested also receive the instruction, and/or send data to the host computer that the host computer issues.Using the utility model, the accuracy of the performance test of high power battery group can be improved.
Description
Technical field
The utility model relates to battery technology field more particularly to a kind of test macros of battery pack.
Background technique
With the development of the society, the renewable energy of green non-pollution obtains very big popularization, wind-power electricity generation, photovoltaic hair
Electricity, new-energy automobile, new energy train, high power battery energy storage are more more and more universal.It is fast with battery (especially lithium battery)
Speed development and application are more and more wider, come into being for the test application system of battery system.
Against more and more extensive, several megawatts by original several watts till now of battery system of the application range of battery
Even tens megawatts.In existing battery testing scheme, the power of the universal battery that can be tested is smaller, uncomfortable
Close the test of high power battery group.And for high-power equipment, it is relatively high with power demand to power grid, to electricity
Net influence is bigger, or test energy consumption is bigger.Specifically, (other in particular for MW class to high power battery group
Energy storage battery system) when being tested, if using the prior art, it is necessary to which test site provides high-power distribution and big function
The heat dissipation equipment of rate, corresponding relatively high to security requirement, equipment manufacturing costs are also larger, and the standard of corresponding test effect
True property is insufficient.
Utility model content
The utility model provides a kind of test macro of battery pack, can test high power battery group, and be not required to
Powerful transformer is wanted, equipment cost is reduced, also improves the accuracy of battery system test.
A kind of test macro of battery pack, including two-way DC/DC converter, AC/DC power module, controller, host computer,
First battery pack to be tested and the second battery pack to be tested；
One end of the two-way DC/DC converter is connect with one end of the controller, the two-way DC/DC converter
The other end is connect with the described first battery pack to be tested, the other end of the controller and the described second battery pack to be tested and
The AC/DC power module connection；
The host computer and the controller, first battery pack, the second battery pack to be tested and the AC/ to be tested
DC power module connection, and the controller, first battery pack, the second battery pack to be tested and the AC/DC to be tested
Power module also receives the instruction that the host computer issues, and/or sends data to the host computer.
Optionally, in one embodiment, the system also includes data acquisition module, the data acquisition module and institutes
State the first battery pack to be tested, second battery pack to be tested is connected with the host computer, to be measured for acquiring described first
The test data of battery pack and the second battery pack feedback to be tested is tried, and the test data is sent to host computer；
The host computer is also used to be analyzed according to the test data, to generate and the described first battery pack to be tested
Battery pack test result corresponding with the second battery pack to be tested.
Optionally, in one embodiment, the data acquisition module be the described first battery pack to be tested and second to
The battery management system of battery pack is tested, what acquisition first battery pack to be tested and the second battery pack to be tested separately included
The test data of multiple single batteries to be measured.
Optionally, in one embodiment, the survey of the described first battery pack to be tested and the second battery pack feedback to be tested
Examination data include temperature signal corresponding with the described first battery pack to be tested and the second battery pack to be tested, voltage signal and/
Or one of current signal or a variety of；
The host computer is also used to be generated and described first according to the temperature signal, voltage signal, and/or current signal
Battery pack to be tested and the corresponding temperature curve of the second battery pack to be tested, and/or voltage curve.
Optionally, in one embodiment, the AC/DC power module includes multiple independent current source modules, the multiple
Independent current source module is series connection or series-parallel form between each other.
Optionally, in one embodiment, the AC/DC power module is the power module that three-phase AC turns DC.
Optionally, in one embodiment, the power of the AC/DC power module is much smaller than the two-way DC/DC transformation
The power of device.
Optionally, in one embodiment, the two-way DC/DC converter includes multiple DC/DC modules, the multiple
Multiphase interleaving mode is used between DC/DC module.
Optionally, in one embodiment, the two-way DC/DC converter includes filter circuit.
Optionally, in one embodiment, the host computer includes display interface, and the display interface is for displaying and institute
State the first battery pack to be tested and the corresponding battery pack test result of the second battery pack to be tested.
Implement the embodiment of the present invention, will have the following beneficial effects:
After test macro using above-mentioned battery pack, during testing battery, two can be directed to
The battery pack to be tested of same size is tested, by powerful two-way DC/DC converter, energy is to be tested at two
It is recycled between battery pack, avoids excess loss during battery testing, also avoid the use of high-power transformer,
Equipment manufacturing costs are reduced, the requirement for matching electrical power to power grid is reduced.In addition, in the present embodiment, to be tested to two
During the charge and discharge of battery pack are tested, the test of charge and discharge can be carried out for each battery pack, to realize
Test for the parameters of battery pack improves the accuracy of parameter testing.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Wherein:
Fig. 1 is a kind of structural schematic diagram of the test macro of battery pack in one embodiment；
Fig. 2 is a kind of circuit diagram of DC/DC converter in one embodiment；
Fig. 3 is a kind of structural schematic diagram of the test macro of battery pack in one embodiment；
Fig. 4 is a kind of structural schematic diagram of the test macro of battery pack in one embodiment；
Fig. 5 is current -voltage curve schematic diagram in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that limitation the application.It is appreciated that term " first " used in this application, " second "
Etc. can be used to describe various elements herein, but these elements should not be limited by these terms.These terms are only used to by first
A element and another element are distinguished.For example, in the case where not departing from scope of the present application, journey can be applied by first
Sequence is known as the second application program, and similarly, can be the first application program by the second application program.First application program and second
Application program both application program, but it is not same application.
A kind of test macro of battery pack presented below is applied to battery performance test.For example, in battery production or electricity
The properties of battery pack are detected during the performance detection of pond, also, electricity provided by the utility model embodiment
The power for the battery pack that the test macro of pond group is suitable for testing high power battery group, and being tested is at least reachable
To megawatt rank or higher.
Specifically, as shown in Figure 1, the test macro of the battery pack includes two-way DC/DC converter 11, AC/DC power supply mould
Block 12, controller 13, host computer 10, the first battery pack 21 and the second battery pack 22 to be tested to be tested.
One end of two-way DC/DC converter 11 is connect with one end of the controller 13, the two-way DC/DC converter
The other end is connect with the described first battery pack 21 to be tested, the other end of the controller and the described second battery pack to be tested
22 and the AC/DC power module 12 connection；The host computer 10 and the controller 13, first battery pack to be tested
21, the second battery pack 22 to be tested and the AC/DC power module 12 connection, and it is the controller 13, described first to be tested
Battery pack 21, the second battery pack 22 to be tested and the AC/DC power module 12 also receive the instruction that the host computer issues,
And/or data are sent to the host computer.
Wherein, the first battery pack to be tested and the second battery pack to be tested are to need to carry out battery performance and parameter is surveyed
The battery pack of examination, the battery pack can be a battery cupboard array, also, the first battery pack to be tested and the second battery pack to be tested
The preferably battery pack of same size, can enable energy during the charge and discharge of battery between two battery packs compared with
Good recycle, and reduces loss.It has been allowed in this way for the smaller with power demand of test site, it is only necessary to supplement energy
Measure the energy loss in cyclic process.
In one embodiment, two-way DC/DC converter 11 is a powerful DC/DC converter, and is keeping converting
In the case that the DC voltage polarity at device both ends is constant, the DC converting of energy two-way transmission can be completed according to actual needs
Device.
Two-way DC/DC converter 11 includes multiple DC/DC modules, is interlocked between the multiple DC/DC module using multiphase
Parallel way.Each DC/DC module is a two-way DC/DC power modules.In the present embodiment, using two-way DC/DC
Converter mainly provides powerful charging box electric discharge for system, can carry out current-limiting charge, constant-voltage charge, pulse charge.
Also, multiple two-way DC/DC power modules can carry out flexible configuration according to demand, and output power can achieve a megawatt rank
(for example, 2 megawatts or more), output voltage 0-2000V export electric current 0-3000A.
Further, in the present embodiment, two-way DC/DC converter further includes filter circuit.For example, as shown in Figure 2
Application scenarios in, filter circuit can be reactance, the electric current of system charge and discharge is filtered, reduce charge and discharge process in
Current ripple, so that influence of the current ripple for test data is avoided, to improve for total in battery pack test process
Body measuring accuracy.
In an alternative embodiment, AC/DC power module is a high frequency switch power, and three-phase AC turns the power supply mould of DC
Block, and include multiple AC/DC modules, each AC/DC module are an independent power module, and each AC/DC
The function of AC/DC power module may be implemented in module.
In the present embodiment, using series connection or series-parallel form between multiple AC/DC modules, realize that multiple module paralleling is (defeated
High current out), multiple block coupled in series (output HIGH voltage) or multiple module strings and combine (output HIGH voltage high current).Also
It is the configuration of the AC/DC power module used in the present embodiment relatively flexibly, it can be achieved that flexible electric current, voltage requirements
Configuration.Also, the flexible configuration for passing through AC/DC power module, can reduce the demand for grid power.
In a specific embodiment, as shown in Figure 3-4, between plurality of AC/DC module using in parallel (Fig. 3) or
(Fig. 4) in series and parallel.
In addition, in the present embodiment, the power of AC/DC power module is much smaller than the power of the two-way DC/DC converter,
For example, the power of AC/DC power module is 1st/20th of the power of two-way DC/DC converter, or smaller.
In the present embodiment, the function of AC/DC power module is energy of the two-way DC/DC module of supplement in charge and discharge process
Amount is lost, energy damage of the first battery pack to be tested and the second battery pack to be tested in system in the charge and discharge process of circulation
Consumption realizes constant voltage output or constant current output.
In the present embodiment, by AC/DC power module to the first battery pack to be tested and the second battery pack to be tested into
Row power supply, also, in specific test process, electric energy is between the first battery pack to be tested and the second battery pack to be tested
It flows back and forth.That is, the second battery pack to be tested is in electric discharge when the first battery pack to be tested is in charged state
State, and the energy of the second battery pack to be tested flows to the first battery pack to be tested.Charging is in the second battery pack to be tested
When state, the first battery pack to be tested is in discharge condition, and the energy of the first battery pack to be tested flows to the second electricity to be tested
Pond group.
Further, in the present embodiment, the test macro of above-mentioned battery pack further includes data acquisition module, the data
Acquisition module is connect with the described first battery pack, second battery pack to be tested and host computer to be tested, for acquiring
The test data of first battery pack to be tested and the second battery pack feedback to be tested, and the test data is sent to
Position machine；The host computer is also used to be analyzed according to the test data, with generate with the described first battery pack to be tested and
The corresponding battery pack test result of second battery pack to be tested.
Wherein, data acquisition module can be the cell tube of the described first battery pack to be tested and the second battery pack to be tested
Reason system acquires multiple single batteries to be measured that first battery pack to be tested and the second battery pack to be tested separately include
Test data.
Further, test data includes one of temperature signal, voltage signal, and/or current signal or a variety of；On
Position machine according to the temperature signal, voltage signal, and/or current signal generate with the described first battery pack to be tested and second to
Test the corresponding temperature curve of battery pack, and/or voltage curve.
It in the present embodiment, is the temperature song to battery in charge and discharge process during testing battery pack
Then the process that line, current curve, voltage curve are tested judges this according to temperature curve, current curve, voltage curve
Whether battery meets corresponding performance or parameter request.Therefore, in the present embodiment, pass through the battery as data acquisition module
Management system carrys out temperature curve, current curve, the voltage curve pair to the first battery pack to be tested and the second battery pack to be tested
The data such as temperature, electric current, the voltage answered are detected and are obtained, and are sent to host computer, so that the host computer can basis
Corresponding data generate temperature curve corresponding with battery pack to be tested, current curve, voltage curve.
For example, in the embodiment shown in fig. 5, giving during carrying out charge-discharge test, under different electric currents
Voltage curve can analyze the characteristic of battery pack according to the curve.
It should be noted that in the present embodiment, it, can also be to each list of battery pack during acquiring data
The data that the battery of body carries out data can guarantee entire battery so that analyzing each monomer list eats corresponding stroke in this way
The performance of group and the consistency of monomer reduce relevant work during follow-up maintenance to improve the service life of battery pack.
It should be noted that in the present embodiment, the battery management system of host computer and battery pack to be tested (BMS,
BATTERY MANAGEMENT SYSTEM) it is attached, receive the monitoring datas such as voltage, temperature, the electric current of each monomer.And
And can control whether BMS opens/close voltage balance control circuit, and record all monitoring informations to be analyzed, from
And the consistency of each single battery of determination, consistency is differed into biggish battery cell with totality or battery modules are recorded
Come, in order to the replacement in subsequent step.
In the present embodiment, it is operated in order to facilitate user, the host computer of above system includes display interface, described aobvious
Show interface for show corresponding with the described first battery pack to be tested and the second battery pack to be tested battery pack test result.?
That is the result after testing battery pack can be shown in the display interface, so that user checks；Or
Person, in another embodiment, host computer can also be connected with printing device, test result can be printed, for
Family is checked.
Implement the embodiment of the present invention, will have the following beneficial effects:
After test macro using above-mentioned battery pack, during testing battery, two can be directed to
The battery pack to be tested of same size is tested, by powerful two-way DC/DC converter, energy is to be tested at two
It is recycled between battery pack, avoids excess loss during battery testing, also avoid the use of high-power transformer,
Equipment manufacturing costs are reduced, the requirement for matching electrical power to power grid is reduced.In addition, in the present embodiment, to be tested to two
During the charge and discharge of battery pack are tested, the test of charge and discharge can be carried out for each battery pack, to realize
Test for the parameters of battery pack improves the accuracy of parameter testing.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (10)
1. a kind of test macro of battery pack, which is characterized in that including two-way DC/DC converter, AC/DC power module, control
Device, host computer, the first battery pack to be tested and the second battery pack to be tested；
One end of the two-way DC/DC converter is connect with one end of the controller, the two-way DC/DC converter it is another
End is connect with the described first battery pack to be tested, the other end of the controller and the described second battery pack to be tested and described
The connection of AC/DC power module；
The host computer and the controller, first battery pack, the second battery pack to be tested and the AC/DC electricity to be tested
Source module connection, and the controller, first battery pack, the second battery pack to be tested and the AC/DC power supply to be tested
Module also receives the instruction that the host computer issues, and/or sends data to the host computer.
2. system according to claim 1, which is characterized in that the system also includes data acquisition module, the data
Acquisition module is connect with the described first battery pack, second battery pack to be tested and host computer to be tested, for acquiring
The test data of first battery pack to be tested and the second battery pack feedback to be tested, and the test data is sent to
Position machine.
3. system according to claim 2, which is characterized in that the data acquisition module is the described first battery to be tested
The battery management system of group and the second battery pack to be tested, for acquiring the described first battery pack to be tested and the second electricity to be tested
The test data for multiple single batteries to be measured that pond group separately includes.
4. system according to claim 2 or 3, which is characterized in that first battery pack to be tested and second to be tested
The test data of battery pack feedback includes that temperature corresponding with the described first battery pack to be tested and the second battery pack to be tested is believed
Number, one of voltage signal, and/or current signal or a variety of；
The host computer is also used to be measured according to the generation of the temperature signal, voltage signal, and/or current signal and described first
Try battery pack and the corresponding temperature curve of the second battery pack to be tested, and/or voltage curve.
5. system according to claim 1, which is characterized in that the AC/DC power module includes multiple independent current source moulds
Block, the multiple independent current source module are series connection or series-parallel form between each other.
6. system according to claim 1, which is characterized in that the AC/DC power module is the power supply that three-phase AC turns DC
Module.
7. system according to claim 1, which is characterized in that the power of the AC/DC power module is double much smaller than described
To the power of DC/DC converter.
8. system according to claim 1, which is characterized in that the two-way DC/DC converter includes multiple DC/DC moulds
Block uses multiphase interleaving mode between the multiple DC/DC module.
9. system according to claim 1, which is characterized in that the two-way DC/DC converter includes filter circuit.
10. system according to claim 2, which is characterized in that the host computer includes display interface, the display interface
For showing battery pack test result corresponding with the described first battery pack to be tested and the second battery pack to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821253404.1U CN208421191U (en) | 2018-08-02 | 2018-08-02 | The test macro of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821253404.1U CN208421191U (en) | 2018-08-02 | 2018-08-02 | The test macro of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208421191U true CN208421191U (en) | 2019-01-22 |
Family
ID=65121609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821253404.1U Active CN208421191U (en) | 2018-08-02 | 2018-08-02 | The test macro of battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208421191U (en) |
-
2018
- 2018-08-02 CN CN201821253404.1U patent/CN208421191U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109061338B (en) | Energy storage PCS drag-and-drop test platform and method | |
| CN104181430A (en) | Off-board charger detection device and method | |
| CN103576025B (en) | A kind of detection test system for energy storage power station grid connection | |
| CN112816809B (en) | Power battery simulation method and system for whole vehicle working condition test | |
| CN104362693A (en) | Method and device for implementing charging and discharging between battery packs | |
| CN210347811U (en) | New forms of energy car machine integration test system that charges | |
| CN103364631A (en) | High-voltage user photovoltaic power generation electric energy metering system and method thereof | |
| CN108802539A (en) | A kind of energy storage power station grid connection test verification system and its verification method | |
| CN109465209A (en) | A kind of power battery stepped utilization method based on photovoltaic base station | |
| CN103674291A (en) | Temperature monitoring system of all-insulated bus | |
| CN107064801A (en) | A kind of charging and discharging lithium battery integration test cabinet based on sensor group | |
| CN102814292B (en) | Lithium ion battery consistency matching method and system | |
| CN202093095U (en) | Direct-current resistance tester for transformer | |
| CN109581097A (en) | A kind of charging pile test macro | |
| CN208421191U (en) | The test macro of battery pack | |
| Zeng et al. | Non-invasive energy harvesting for wireless sensors from electromagnetic fields around 10kV three-core power cables | |
| CN205786898U (en) | A kind of super capacitor electric performance test experimental provision | |
| CN110850294A (en) | Battery pack testing system | |
| CN204461635U (en) | Based on solar powered high voltage bus wireless temperature monitoring device | |
| CN208078130U (en) | Multichannel Li-Battery monitor and combo device | |
| CN215681813U (en) | Parallel energy storage system | |
| CN206906552U (en) | A kind of battery pack detecting system | |
| CN209690473U (en) | A kind of fuel cell test and lithium ion battery forming and capacity dividing coupled system | |
| CN114397517A (en) | Photovoltaic inverter test system | |
| CN209606528U (en) | A kind of lithium battery group analog machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |