CN209104812U - A kind of energy storage unsteady flow collection control chain - Google Patents
A kind of energy storage unsteady flow collection control chain Download PDFInfo
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- CN209104812U CN209104812U CN201822169856.8U CN201822169856U CN209104812U CN 209104812 U CN209104812 U CN 209104812U CN 201822169856 U CN201822169856 U CN 201822169856U CN 209104812 U CN209104812 U CN 209104812U
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- flow collection
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Abstract
The utility model provides a kind of energy storage unsteady flow collection control chain, is related to technical field of energy storage.The energy storage unsteady flow collection control chain includes controller, multiple DC/DC modules, multiple energy storage devices and DC/AC module, each energy storage device is electrically connected with a DC/DC module, multiple DC/DC modules are electrically connected with DC/AC module, controller is electrically connected with DC/DC module, energy storage device and DC/AC module respectively, controller is used to obtain the status information of each energy storage device, and the working condition according to target operational mode and each DC/DC module of status information real-time control in real time.The advantages of energy storage unsteady flow collection control chain provided by the utility model has flexibility higher, responds faster.
Description
Technical field
The utility model relates to technical field of energy storage, in particular to a kind of energy storage unsteady flow collection control chain.
Background technique
In current energy storage industry and application case, echelon battery, the application demand of retired power battery are extensive, and such answer
Have following function with environmental requirement energy accumulation current converter system: (1) DC terminal voltage range is wide；(2) matching multichannel battery connection.
Meanwhile energy accumulation current converter product is as one of the important component in electrical power trans mission/distribution system, it is also desirable to meet the related request at power grid end:
(1) quick response power grid real-time change；(2) high reliability.In addition, when needing off-network (with standby power mode) to run, storage
Energy current transformer needs to concentrate power output, the subregional power supply function of achievement unit.
However, current energy storage device, which is generallyd use, accesses integral battery all the way, direct current inside an energy-storage system
Pressure range is fixed, and energy content of battery control management permeability is low, and flexibility is low, and echelon battery is not utilized or not.
It is the emphasis of those skilled in the art's concern in view of this, how to solve the above problems.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of energy storage unsteady flow collection control chains, to solve existing energy storage side
Battery energy management permeability is low in case, and flexibility is low, is unfavorable for the problem of echelon battery utilizes.
To achieve the goals above, the utility model embodiment the technical solution adopted is as follows:
The utility model embodiment propose energy storage unsteady flow collection control chain described in a kind of energy storage unsteady flow collection control chain include controller, it is more
A DC/DC module, multiple energy storage devices and DC/AC module, each energy storage device are electric with a DC/DC module
Connection, the multiple DC/DC module is electrically connected with the DC/AC module, the controller respectively with the DC/DC module,
The energy storage device and DC/AC module electrical connection, the controller for obtaining each energy storage device in real time
Status information, and according to target operational mode and each DC/DC module of the status information real-time control and the DC/AC
The working condition of module.
Further, the status information includes energy storage information and input/output voltage block information, the control
Device is used for the input/output power according to the presetting each DC/DC module of power distribution, so that each DC/DC
Module carries out power supply output/output according to the input/output voltage block information of corresponding energy storage device.
Further, the status information further includes fault message, and the controller is also used to receiving the failure
It after information, controls energy storage device corresponding with the fault message and stops working, and control remaining energy storage device and carry out power supply
Input/output.
Further, the energy storage unsteady flow collection control chain further includes voltage sampling circuit, the voltage sample module respectively with
The DC terminal of the DC/AC module, controller electrical connection, the voltage sample module are used for the DC/AC module
The voltage of DC terminal is sampled, and the voltage value of sampling is transmitted to the controller.
Further, the controller is also used to determine the mesh according to operation of power networks scheduling information and power grid electricity price information
Mark operating mode.
Further, the DC/AC module further includes AC filtering for exporting three phase mains, the energy storage unsteady flow collection control chain
Device, AC contactor and AC breaker, the AC filter, the AC contactor and AC breaker series connection, and it is described
AC filter, the AC contactor and the AC breaker are electrically connected with three roads Ge Xiang of the three phase mains.
Further, the DC/AC module includes inverter bridge, the DC terminal of the inverter bridge and the multiple DC/DC mould
Block electrical connection, the exchange end of the inverter bridge is electrically connected with the AC filter.
Further, the AC filter includes LC filter circuit.Compared with the prior art, the utility model has with following
Beneficial effect:
The utility model provides a kind of energy storage unsteady flow collection control chain, which includes controller, multiple DC/
DC module, multiple energy storage devices and DC/AC module, each energy storage device are electrically connected with a DC/DC module, multiple DC/
DC module is electrically connected with DC/AC module, and controller is electrically connected with DC/DC module, energy storage device and DC/AC module respectively,
Controller is used to obtain the status information of each energy storage device in real time, and according to target operational mode and status information real-time control
The working condition of each DC/DC module.Since energy storage unsteady flow collection control chain provided by the utility model uses multichannel energy storage device group
The mode for closing connection carries out charge/discharge, is conducive to the effective use of echelon battery, realizes that flexibility is higher, responds effect faster
Fruit.And since the utility model uses DC terminal multi-wad join battery, the mode of exchange end single channel connection power grid is powered, because
This can be realized the effect in the output centralized processing of DC/AC module, so that the dynamic response effect of whole system is more preferable.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the module diagram of the energy storage unsteady flow collection control chain of the embodiments of the present invention offer.
The circuit diagram of the DC/AC module and AC filter that are provided Fig. 2 shows the embodiments of the present invention.
Icon: 100- energy storage unsteady flow collection control chain；110- controller；120-DC/DC module；130- energy storage device；140-DC/
AC module；150- voltage sampling circuit；161-AC filter；162-AC contactor；163-AC breaker.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile it is practical new at this
In the description of type, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " connected ", " connection " should do broad sense
Understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.With reference to the accompanying drawing, it elaborates to some embodiments of the utility model.In the absence of conflict, following
Embodiment and embodiment in feature can be combined with each other.
Referring to Fig. 1, the utility model embodiment provides a kind of energy storage unsteady flow collection control chain 100, the energy storage unsteady flow collection control
Chain 100 includes controller 110, multiple DC/DC modules 120, multiple energy storage devices 130 and DC/AC module 140, each energy storage
Device 130 is electrically connected with a DC/DC module 120, and multiple energy storage devices 130 are electrically connected with DC/AC module 140, control
Device 110 is electrically connected with DC/DC module 120, energy storage device 130 respectively.
It should be noted that the equipment such as including energy-storage battery of energy storage device 130 described in the present embodiment, can reach
The function of charge/discharge.Controller 110 described in the present embodiment includes PCS (Power Conversion System, power conversion
System) controller 110, for example, by using controller veneer.Also, PCS controller 110 is communicated by CAN interface and BMS, is obtained
The status information of energy storage device 130 can be realized by the status information and target operational mode of energy storage device 130 to battery
Charge/discharge, it is ensured that battery operation safety.Wherein, target operational mode described in the present embodiment refers to the energy storage unsteady flow collection control chain 100
State in charge or discharge.
Specifically, energy storage device 130 is equal with DC/DC module 120, in the present embodiment, energy storage device 130 and DC/DC
Module 120 is 4, and of course, in some other embodiments, quantity may be more or less, such as adopt
With 6 or 3, the present embodiment does not do any restriction to this.
When needing to carry out charge or discharge, controller 110 can obtain the status information of each energy storage device 130 in real time,
In the present embodiment, the specification of each energy storage device 130 can be the same or different, and status information includes but is not limited to energy
The data such as information, output voltage block information or fault message are stored, by this way, can be realized the energy storage dress of different size
Set 130 be integrated in a system carry out using, realize multiple energy storage devices 130 collocation carry out charge/discharge.For example, at it
In some energy storage device 130 used a period of time, can complete to supply jointly with other several energy storage devices 130
Electricity is realized to the recycling of used energy storage device 130, has saved the cost of whole system.
Further, during charge or discharge, controller 110 can be believed according to the state of each energy storage device 130
The working condition for ceasing real-time control DC/DC module 120 and DC/AC module 140, so that multiple 120 input/output of DC/DC module
General power be equal to demand power.
Specifically, wherein any when detecting during carrying out charge/discharge simultaneously using multiple energy storage devices 130
After the fault message of one energy storage device 130, controller 110 is connected energy storage device 130 corresponding with the fault message is controlled
DC/DC module 120 be in off working state, and other DC/DC modules 120 are in running order, even if therein to realize
Any one energy storage device 130 breaks down, and remaining energy storage device 130, which remains unchanged, can continue to the effect of charge/discharge, makes entire
The flexibility of energy storage unsteady flow collection control chain 100 is higher.
Also, presetting function in the present embodiment, is stored in controller 110 in order to be able to satisfy input/output demand
Rate, which includes input power and output power, wherein input power and output power can it is identical can also be with
Difference, during carrying out charge/discharge using the energy storage unsteady flow magnetic control chain 100 for being originally embodiment offer, multiple DC/DC moulds
The power of the input/output by the way of in parallel of block 120 is equal to presetting power, to drive load running or charge,
Realize that the energy storage unsteady flow collection control chain 100 provided through this embodiment can meet the effect of charge/discharge power demand in real time in turn.
Further, in order to play the effect for protecting energy storage device 130, energy storage device 130 is avoided over-voltage occur or owe
The output state of pressure, in the present embodiment, controller 110 can obtain the voltage range information of each energy storage device 130, and according to
The output power of each DC/DC module 120 of presetting power distribution, so that each DC/DC module 120 is according to corresponding
The output voltage block information of energy storage device 130 carries out power supply output, wherein the voltage range information is the optimal electricity of energy storage
Output interval is pressed, not only protects energy storage device 130 to reach, but also can satisfy the effect of output demand.Of course, other
Some embodiments in, voltage range information can also be stored in controller 110, the present embodiment does not do any limit to this
It is fixed.
Further, in order to determine that the voltage of the output end of DC/DC module 120 is located in voltage range information, energy storage becomes
Adfluxion control chain 100 further includes voltage sampling circuit 150, voltage sample module respectively with the DC terminal of DC/AC module 140, control
Device 110 is electrically connected, and voltage sample module is for sampling the voltage of 140 DC terminal of DC/AC module, and by the voltage of sampling
Value is transmitted to controller 110, and controller 110 is enabled to obtain the feedback of the output end of DC/DC module 120 in real time.
By the scheme in parallel of setting multichannel energy storage device 130, being used cooperatively for multiple energy storage devices 130 can be realized,
To export the general power of meet demand, so that flexibility is higher.
Further, in the present embodiment, DC/AC module 140 is for exporting three phase mains, energy storage unsteady flow collection control chain 100
It further include AC filter 161, AC contactor 162 and AC breaker 163.Wherein AC filter, AC contactor and AC open circuit
Device series connection, and AC filter, AC contactor and AC breaker are electrically connected with three roads Ge Xiang of the three phase mains.
It is the node of system power major loop when system operates normally, cooperation realizes that power conversion, energy pass
It passs；When being operating abnormally, overload, overheat, instantaneous short circuit when such as long realize that pcs system and power grid disconnect, it is ensured that equipment safety.
Specifically, DC/AC module 140 includes inverter bridge, and inverter bridge is made of six transistors, and controller 110 passes through six crystalline substances of control
The on state of body pipe, which is realized, becomes three-phase alternating current for direct current.
And the output end of inverter bridge is electrically connected with AC filter, AC filter includes LC filter circuit so that fill/
When discharge process, the power quality of output meets mark demand.
It is inputted by setting multichannel energy storage device 130, the mode that single channel DC/AC module 140 exports can be realized in DC/
The output end of AC module 140 focuses on, so that the dynamic response effect of entire energy storage unsteady flow collection control chain 100 is more preferable.
Furthermore, it is desirable to explanation, by being arranged independent multichannel energy storage device and DC/AC module, controller can be according to
Different demands control the working condition of every road energy storage device, for example, can control every road energy storage device according to not using controller
With power carry out charge/discharge, charge/discharge mode can it is more flexible regulated and controled.
Also, controller can also be determined according to operation of power networks scheduling information and power grid electricity price information target operational mode with
The power of charge/discharge, for example, power grid electricity price is higher at this time, then controller is controllable when being peak times of power consumption in certain time period
The operating mode of DC/AC module processed is output electric energy；And be electricity consumption low peak period in certain time period, and electricity price is lower at this time, because
Controller can control the operating mode of DC/AC module for charge mode at this time for this, and realizes within the low price period and quickly fill
Electricity, because controller can control each DC/DC module and run according to maximum charge power, to realize the effect of quick charge.
By the above-mentioned means, realizing the flexible control of energy storage unsteady flow collection control chain, while can be according to current operation of power networks scheduling information
Realize the optimum choice of operating mode, with power grid electricity price information so as to be reached for the effect that user saves cost.
In conclusion the utility model provides a kind of energy storage unsteady flow collection control chain, which includes control
Device, multiple DC/DC modules, multiple energy storage devices and DC/AC module, each energy storage device are electrically connected with a DC/DC module
Connect, multiple DC/DC modules are electrically connected with DC/AC module, controller respectively with DC/DC module, energy storage device and DC/AC mould
Block electrical connection, controller is used to obtain the status information of each energy storage device in real time, and believes according to target operational mode and state
Cease the working condition of each DC/DC module of real-time control.Since energy storage unsteady flow collection control chain provided by the utility model uses multichannel
The mode of energy storage device combination connection carries out charge/discharge, is conducive to the effective use of echelon battery, realizes that flexibility is higher, rings
Answer faster effect.And since the utility model uses DC terminal multi-wad join battery, the mode of exchange end single channel connection power grid
It is powered, therefore can be realized the effect in the output centralized processing of DC/AC module, so that the dynamic of whole system is rung
Answer effect more preferable.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.It should be noted that
To: similar label and letter indicate similar terms in following attached drawing, therefore, once determined in a certain Xiang Yi attached drawing
Justice does not need then that it is further defined and explained in subsequent attached drawing.
Claims (8)
1. a kind of energy storage unsteady flow collection control chain, which is characterized in that the energy storage unsteady flow collection control chain includes controller, multiple DC/DC moulds
Block, multiple energy storage devices and DC/AC module, each energy storage device is electrically connected with a DC/DC module, described
Multiple DC/DC modules are electrically connected with the DC/AC module, and the controller is filled with the DC/DC module, the energy storage respectively
It sets and DC/AC module electrical connection, the controller is used to obtain the status information of each energy storage device in real time, and
Work according to target operational mode and the status information real-time control each the DC/DC module and the DC/AC module
State.
2. energy storage unsteady flow collection control chain as described in claim 1, which is characterized in that the status information includes energy storage information
With input/output voltage block information, the controller is used for according to the presetting each DC/DC module of power distribution
Input/output power, so that input/output voltage section of each DC/DC module according to corresponding energy storage device
Information carries out power supply output/output.
3. energy storage unsteady flow collection control chain as claimed in claim 2, which is characterized in that the status information further includes fault message,
The controller is also used to after receiving the fault message, is controlled energy storage device corresponding with the fault message and is stopped work
Make, and controls the input/output that remaining energy storage device carries out power supply.
4. energy storage unsteady flow collection control chain as claimed in claim 2, which is characterized in that the energy storage unsteady flow collection control chain further includes voltage
Sample circuit, the voltage sample module are electrically connected with the DC terminal of the DC/AC module, the controller respectively, the electricity
Pressure sampling module is used to sample the voltage of the DC terminal of the DC/AC module, and the voltage value of sampling is transmitted to institute
State controller.
5. energy storage unsteady flow collection control chain as described in claim 1, which is characterized in that the controller is also used to according to operation of power networks
Scheduling information and power grid electricity price information determine the target operational mode.
6. energy storage unsteady flow collection control chain as described in claim 1, which is characterized in that the DC/AC module is for exporting three-phase electricity
Source, the energy storage unsteady flow collection control chain further include AC filter, AC contactor and AC breaker, the AC filter, the AC
Contactor and the AC breaker series connection, and the AC filter, the AC contactor and the AC breaker with it is described
Three roads Ge Xiang of three phase mains are electrically connected.
7. energy storage unsteady flow collection control chain as claimed in claim 6, which is characterized in that the DC/AC module includes inverter bridge, described
The DC terminal of inverter bridge is electrically connected with the multiple DC/DC module, and the exchange end of the inverter bridge is electrically connected with the AC filter
It connects.
8. energy storage unsteady flow collection control chain as claimed in claim 7, which is characterized in that the AC filter includes LC filter circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822169856.8U CN209104812U (en) | 2018-12-24 | 2018-12-24 | A kind of energy storage unsteady flow collection control chain |
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| CN201822169856.8U CN209104812U (en) | 2018-12-24 | 2018-12-24 | A kind of energy storage unsteady flow collection control chain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412186A (en) * | 2018-12-24 | 2019-03-01 | 西安精石电气科技有限公司 | A kind of energy storage unsteady flow collection control chain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412186A (en) * | 2018-12-24 | 2019-03-01 | 西安精石电气科技有限公司 | A kind of energy storage unsteady flow collection control chain |
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