CN208386170U - A kind of energy-accumulating power station with active equalization function - Google Patents
A kind of energy-accumulating power station with active equalization function Download PDFInfo
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- CN208386170U CN208386170U CN201820350539.3U CN201820350539U CN208386170U CN 208386170 U CN208386170 U CN 208386170U CN 201820350539 U CN201820350539 U CN 201820350539U CN 208386170 U CN208386170 U CN 208386170U
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Abstract
The utility model discloses a kind of energy-accumulating power stations with active equalization function, including single battery, active equalization module, current transformer and controller, composition battery module is connect after the series connection of several single batteries with active equalization module, several battery modules connection composition energy-storage battery group, active equalization module includes power input output interface and communication bus interface, current transformer is AC/DC dual channel source, the power input output interface of active equalization module in several battery modules and the direct current input/output terminal of current transformer connect, the communication bus interface and controller of active equalization module in several battery modules communicate to connect, the exchange input/output terminal of current transformer is connected in parallel with external electrical network and connect with user load；Concatenated a large amount of single batteries are divided into multiple concatenated battery packs and are managed by the utility model, are carried out active equalization adjusting to single battery each in battery pack, are improved the discharge capability of single battery, extend the service life of single battery.
Description
Technical field
The utility model relates to a kind of energy-accumulating power stations using active equalization technology, more particularly to one kind to have active equalization
The energy-accumulating power station of function belongs to power energy storage technical field.
Background technique
Energy storage technology is always the technology widelyd popularize in network system, and the energy-storage battery element of energy-accumulating power station is chargeable
Battery, since the manufacturing technology of energy-storage battery and the manufacturing technology of power battery are equally matched, or even requirement is higher, causes energy storage
The cost in power station is high, and restricted lifetime；In any one series-connected cell group, the capacity of each single battery can not
It is completely the same, always there is the capacity of a batteries minimum, this section single battery causes " wooden pail effect ", since this saves single battery
It is always full of or discharges at first at first during entire battery pack charge and discharge, after this section single battery is full of or discharges,
No matter whether other monomers battery can also continue charge and discharge, entire battery pack cannot charge and discharge again, otherwise can damage battery；
In addition to this, since always this minimum single battery of section capacity completely fills, Man Fang, lead to the service life of this section single battery just
It can reduce, once this section single battery reaches service life, entire battery pack cannot work again, in order to keep each single battery
Consistency in energy-accumulating power station operation, one of current state-of-the-art technology is exactly active equalization technology, it is in system discovery list
After the appearance of body battery is inconsistent, corresponding charge or discharge processing is carried out to inconsistent specific battery is generated, to keep
The consistency of each single battery, single battery used in energy-accumulating power station since monomer voltage is relatively low, generally 1.9V ~ 4.2V it
Between, it is therefore desirable to a large amount of series connection could play a role in actual operation in groups, and typical joint number of connecting reaches 300 sections or so,
Since single battery is relatively more, it is necessary to all single batteries is assigned in different battery packs by group technology and carried out
Weighing apparatus, while the inconsistency between group and group is also taken into account, prevent the unbalanced energy storage energy for causing energy-accumulating power station between group and group
Power decline, reduced lifetime.
Summary of the invention
To solve the deficiencies in the prior art, the utility model provides a kind of energy-accumulating power station with active equalization function, fills
Divide the energy storage capacity using rechargeable battery, a large amount of single batteries are used in series, each single battery is kept to transport in energy-accumulating power station
Concatenated a large amount of single batteries are divided into multiple concatenated battery packs and are managed, using active equalization skill by the consistency in row
Art carries out active equalization adjusting to single battery each in battery pack, improves the discharge capability of single battery, and extend single battery
Service life.
The technology employed by the present utility model is
A kind of energy-accumulating power station with active equalization function, including single battery, active equalization module, current transformer and control
Device processed, connect composition battery module with active equalization module after the series connection of several single batteries, several battery modules connect
Composition energy-storage battery group is connect, the active equalization module includes power input output interface and communication bus interface, the active
Balance module, which is used to measure the voltage of each single battery and then judges automatically, to be needed balanced single battery and executes balancing actions
Or obtained from controller and need balanced single battery joint number and execute balancing actions, the current transformer is AC/DC binary channels electricity
Source, the power input output interface of the active equalization module in several battery modules and the direct current input/output terminal of current transformer
It connects, the communication bus interface and controller of the active equalization module in several battery modules communicate to connect, the unsteady flow
The exchange input/output terminal of device is connected in parallel with external electrical network and connect with user load, and the controller is also communicated with current transformer
It connects and controls current transformer and converted between AC/DC mode and DC/AC mode.
As the further preferred of the utility model, several battery modules connection composition energy-storage battery group
Connection type include it is first in parallel after concatenated connection type, first connect after connection type in parallel and will it is first in parallel after connect and
Two kinds of connection types in parallel carry out mixing series-parallel connection type after first connecting.
As the further preferred of the utility model, the communication bus interface of the active equalization module is communicated with controller
The communication mode of connection is any communication mode in CAN, USB, RS485 or RS232.
As the further preferred of the utility model, the active equalization module further includes for monitoring battery module
The temp probe of temperature.
The utility model has the beneficial effects that: the energy storage capacity of rechargeable battery is made full use of, by a large amount of single batteries
It is used in series, keeps each single battery in the running consistency of energy-accumulating power station, concatenated a large amount of single batteries are divided into multiple
Concatenated battery pack is managed, and using active equalization technology, is carried out active equalization adjusting to single battery each in battery pack, is mentioned
The discharge capability of high monomer battery, and extend the service life of single battery.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model battery module schematic diagram；
Fig. 3 is concatenated connected mode schematic diagram after several battery modules of the utility model are first in parallel；
Fig. 4 is connected mode schematic diagram in parallel after several battery modules of the utility model are first connected；
Fig. 5 is that several battery modules of the utility model mix series-parallel connected mode schematic diagram；
Main appended drawing reference meaning is as follows in figure:
1- active equalization module, 2- battery module, 3- energy-storage battery group, 4- current transformer, 5- controller, 6- user are negative
It carries.
Specific embodiment:
Specific introduction is done to the utility model with reference to the accompanying drawings and examples.
As shown in Figs. 1-5: the present embodiment is a kind of energy-accumulating power station with active equalization function, including single battery, master
Dynamic balance module 1, current transformer 4 and controller 5 connect composition electricity with active equalization module 1 after the series connection of several single batteries
Pond group module 2, several battery modules 2 connection composition energy-storage battery group 3, active equalization module 1 are exported including power input
Interface and communication bus interface, active equalization module 1, which is used to measure the voltage of each single battery and then judges automatically, needs equilibrium
Single battery and execute balancing actions or obtained from controller 5 and need balanced single battery joint number and execute balancing actions,
Current transformer 4 is AC/DC dual channel source, the power input output interface of the active equalization module 1 in several battery modules 2
It is connect with the direct current input/output terminal of current transformer 4, the communication bus of the active equalization module 1 in several battery modules 2 connects
Mouth is communicated to connect with controller 5, and the exchange input/output terminal and external electrical network of current transformer 4 are connected in parallel and connect with user load 6
It connects, controller 5 also communicates to connect with current transformer 4 and controls current transformer 4 and converts between AC/DC mode and DC/AC mode.
It is as in Figure 3-5: the connection type of several battery modules 2 connection composition energy-storage battery group 3 in the present embodiment
Including concatenated connection type after first in parallel, first connect after connection type in parallel and will it is first in parallel after connect and first connect after
Two kinds of connection types in parallel carry out mixing series-parallel connection type.
In the present embodiment, the communication mode that the communication bus interface of active equalization module 1 is communicated to connect with controller 5 is
RS485 communication mode, in practical application, also can choose any communication mode in CAN, USB or RS232.
Active equalization module 1 in the present embodiment further includes the temp probe for monitoring 2 temperature of battery module.
Active equalization module 1 in the present embodiment is connected with concatenated each single battery, forms a battery module 2,
Active equalization module 1 can be powered in practical application by external dc power or AC power source, and the active in the present embodiment is equal
Weighing apparatus module 1 is powered by current transformer 4, is communicated by communication bus and supervisory controller 5, active equalization module 1 can be realized
Following function: measuring the voltage of each single battery then judge automatically need balanced single battery and execute balancing actions or from
Controller 5, which obtains, to be needed balanced single battery joint number and executes balancing actions, and active equalization module 1 executes single battery equal
Weighing apparatus movement be charged by external dc power or AC power source to single or multiple single batteries or from some monomer electricity
Energy is absorbed on pond and is charged to other single or multiple single batteries, and also mountable temp probe monitors battery pack mould
The temperature of block 2.
Current transformer 4 in the present embodiment is an AC/DC dual channel source, and the exchange side of current transformer 4 is in parallel with power grid simultaneously
User load 6 is connected, the alternating current of grid side can be become direct current and charged to energy-storage battery group 3, can also will stored up by current transformer 4
The direct current of energy battery pack 3 becomes to exchange electricity output to user load 6 or power grid, and controller 5 passes through communication bus and energy storage electricity
Each active equalization module 1 communicates to connect in pond group 3, issue and receive instruction, data etc., controller 5 and current transformer 4 pass through communication
Interface communication connection, issue and receive instruction, data etc..
When charging, controller 5 sends instructions to current transformer 4, makes the work of current transformer 4 in the mould that alternating current is become to direct current
Formula charges to energy-storage battery group 3, meanwhile, controller 5 is issued to each active equalization module 1 and is instructed, and controls active equalization module 1
Balanced operation is carried out to each single battery, or each active equalization module 1 of control carries out balanced operation to each single battery automatically.
When electric discharge, controller 5 sends instructions to current transformer 4, makes the work of current transformer 4 in the mould that direct current is become to alternating current
Formula makes energy-storage battery group 3 discharge to user load 6 or power grid, meanwhile, controller 5 is issued to each active equalization module 1 and is instructed,
It controls active equalization module 1 and balanced operation, or each active equalization module 1 of control is carried out automatically to each monomer to each single battery
Battery carries out balanced operation.
In charge and discharge process, if it find that the total voltage of some battery module 2 or the other electricity of total capacity substantial deviation
Pond group module 2, then controller 5 sends to the active equalization module 1 of the battery module 2 and instructs, and stops the battery module 2
Balanced operation is then turned on equilibrium after the close other battery modules 2 of the total voltage or total capacity of the battery module 2
Operation.
Active equalization module used in the present embodiment and controller are by the limited public affairs of Yancheng curry favour crowd new energy science and technology
Take charge of development & production, wherein active equalization module is the battery intelligent of the said firm's production and fills machine module, and design parameter please refers to net
Page link: http://www.ychuizhong.com/product/265.html；Controller is by the said firm using single-chip microcontroller
A kind of nonshared control unit of exploitation, is made according to technical parameters such as capacity, the series-connected cell joint numbers of each energy-accumulating power station, mesh
The preceding controller model used in the demonstration site of energy-accumulating power station are as follows: HZESC-I.
The utility model makes full use of the energy storage capacity of rechargeable battery, and a large amount of single batteries are used in series, and keeps each
Concatenated a large amount of single batteries are divided into multiple concatenated battery packs and carried out by single battery in the running consistency of energy-accumulating power station
Management is carried out active equalization adjusting to single battery each in battery pack, is improved the electric discharge of single battery using active equalization technology
Ability, and extend the service life of single battery.
The above is only the preferred embodiment of the utility model patent, it is noted that for the general of the art
For logical technical staff, under the premise of not departing from the utility model patent principle, several improvements and modifications can also be made, this
A little improvements and modifications also should be regarded as the protection scope of the utility model patent.
Claims (2)
1. a kind of energy-accumulating power station with active equalization function, it is characterised in that: including single battery, active equalization module, become
Device and controller are flowed, connect composition battery module after the series connection of several single batteries with active equalization module, several electricity
Pond group module connection composition energy-storage battery group, the active equalization module includes that power input output interface and communication bus connect
Mouthful, the active equalization module, which is used to measure the voltage of each single battery and then judges automatically, to be needed balanced single battery and holds
Row balancing actions obtain the balanced single battery joint number of needs from controller and execute balancing actions, and the current transformer is AC/
DC dual channel source, the power input output interface of the active equalization module in several battery modules and the direct current of current transformer
Input/output terminal connects, the communication bus interface and controller communication link of the active equalization module in several battery modules
It connects, the exchange input/output terminal of the current transformer is connected in parallel with external electrical network and connect with user load, and the controller is also
It is communicated to connect with current transformer and controls current transformer and converted between AC/DC mode and DC/AC mode；The active equalization module
Communication bus interface and the communication mode of controller communication connection are any communication parties in CAN, USB, RS485 or RS232
Formula；The active equalization module further includes the temp probe for monitoring battery module temperature.
2. a kind of energy-accumulating power station with active equalization function according to claim 1, which is characterized in that described is several
The connection type of a battery module connection composition energy-storage battery group include it is first in parallel after concatenated connection type, first connect after simultaneously
The connection type of connection and will it is first in parallel after series connection and two kinds of connection types in parallel after first connecting carry out mixing series-parallel company
Connect mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820350539.3U CN208386170U (en) | 2018-03-15 | 2018-03-15 | A kind of energy-accumulating power station with active equalization function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820350539.3U CN208386170U (en) | 2018-03-15 | 2018-03-15 | A kind of energy-accumulating power station with active equalization function |
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| CN208386170U true CN208386170U (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233490A (en) * | 2018-03-15 | 2018-06-29 | 江苏本安环保科技有限公司 | It is a kind of that there is the energy-accumulating power station of active equalization |
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2018
- 2018-03-15 CN CN201820350539.3U patent/CN208386170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233490A (en) * | 2018-03-15 | 2018-06-29 | 江苏本安环保科技有限公司 | It is a kind of that there is the energy-accumulating power station of active equalization |
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