CN106849368A - Modularization energy-accumulating power station based on echelon battery - Google Patents
Modularization energy-accumulating power station based on echelon battery Download PDFInfo
- Publication number
- CN106849368A CN106849368A CN201610940357.7A CN201610940357A CN106849368A CN 106849368 A CN106849368 A CN 106849368A CN 201610940357 A CN201610940357 A CN 201610940357A CN 106849368 A CN106849368 A CN 106849368A
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- energy
- power station
- battery
- module
- accumulating power
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- 238000009825 accumulation Methods 0.000 claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000004146 energy storage Methods 0.000 claims description 15
- 239000002800 charge carrier Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008409 marco Nutrition 0.000 description 1
- 244000078446 marco Species 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- H02J15/00—Systems for storing electric energy
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to energy-accumulating power station field, a kind of modularization energy-accumulating power station based on echelon battery is specifically provided.Present invention seek to address that when causing in energy-accumulating power station application because there is larger performance difference between existing echelon battery more difficult Integrated design problem.Energy-accumulating power station of the invention includes being provided with the monitoring system of system-level protection device, output bus and is parallel to multiple modules of output bus; it is separate between each module, be independent of each other; monitoring system is communicated with each module by CAN respectively; action for detecting the information and each module of control of each module; each module includes battery module and coupled energy accumulation current converter again, and each module is additionally provided with branch protection device.Therefore, energy-accumulating power station of the invention both ensure that the Integrated design application of difference electrochemical cell, in turn ensure that and be independent of each other between modules, and the performance of each echelon battery has been played to greatest extent, improve the reliability of whole system.
Description
Technical field
The invention belongs to energy-accumulating power station field, a kind of modularization energy-accumulating power station based on echelon battery is specifically provided.
Background technology
At present, electric automobile industry and industry development are very rapid, with the popularization and application of electric automobile, there is flood tide
Retired battery, the residual capacity of retired battery has larger utilization space generally more than 80%, how to solve such flood tide
Retired battery, finds suitable echelon and utilizes scene, as the Tough questions that electric automobile industry faces.And stored up in energy storage industry
Can the construction in power station need substantial amounts of inexpensive energy-storage battery, at present, if the retired inexpensive battery of electric automobile can be
Energy storage field is utilized effectively, it will be greatly promoted the development of energy storage industry.
Based on the difference of battery applications situation, larger performance difference is there is also between the battery that each echelon is utilized, in storage
Can using when there is more technical problem, how to evade battery performance difference, using suitable scheme, realize that echelon battery exists
Energy storage is effectively utilized on a large scale in field, it has also become electric automobile is badly in need of the technical barrier of solution with energy storage industry.
Correspondingly, this area needs a kind of new solved the above problems based on the modularization energy-accumulating power station of echelon battery.
The content of the invention
In order to solve above mentioned problem of the prior art, be between the battery that the existing echelon of solution is utilized because exist compared with
Caused by big performance difference in energy-accumulating power station application more difficult Integrated design problem, the invention provides one kind based on ladder
The modularization energy-accumulating power station of primary cell, the energy-accumulating power station is including output bus and is parallel to the multiple modules for exporting bus,
Each described module includes battery module and the energy accumulation current converter for being connected to the battery module, wherein, the battery module
Battery is echelon battery, and the energy accumulation current converter is parallel to the output bus.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the energy-accumulating power station also includes
Monitoring system, the monitoring system is communicated by CAN with the battery module and/or the energy accumulation current converter.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the monitoring system is provided with
System-level protection device, the system-level protection device can be such that the energy-accumulating power station moves back in time in outside system jam
Go out operation.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, each described module is set
There is branch protection device, the branch protection device can make the module out of service in time when breaking down.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the branch protection device bag
Tie point protection device and the second branch protection device are included, the tie point protection device can make the battery module exist
It is out of service in time when breaking down, the second branch protection device the energy accumulation current converter can be made when breaking down and
When it is out of service.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the institute in each described module
State and communicated with one another also by CAN between battery module and the energy accumulation current converter.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the institute in each described module
Stating battery module has identical specification；And/or the energy accumulation current converter in each described module also has identical
Specification.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the energy-accumulating power station also includes
Transformer, one end of the transformer electrically connects with the output bus, and the other end of the transformer is used to connect outside system
System.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the external system includes giving
The charging system and the energy-accumulating power station that the energy-accumulating power station charges are its charging by charge carrier.
In the optimal technical scheme of the above-mentioned modularization energy-accumulating power station based on echelon battery, the echelon battery is not tear open
The retired electric automobile power battery of solution.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, the output of energy-accumulating power station is female
Line parallel is by multiple modules being made up of battery module and coupled energy accumulation current converter and mutually only between each module
Stand, be independent of each other, the battery module and energy accumulation current converter in each module are monitored respectively by monitoring system, are controlled, energy
It is enough effectively to reduce because of the echelon battery performance difference of itself, caused by energy-accumulating power station application more difficult Integrated design difficulty
Topic.And the monitoring system of the energy-accumulating power station is provided with system-level protection device, battery module and energy accumulation current converter are provided with
Branch protection device, and then the multiple protective to energy-accumulating power station can be realized.
Brief description of the drawings
Fig. 1 is the system topological block diagram of the modularization energy-accumulating power station based on echelon battery of the invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little implementation methods are used only for explaining know-why of the invention, it is not intended that limit the scope of the invention.For example, explanation
The relative position relation of each module is not unalterable in book accompanying drawing, and those skilled in the art can make tune to it as needed
It is whole, to adapt to specific application scenario.
It should be noted that in the description of the invention, term " first ", " second ", " the 3rd " are only used for describing purpose,
And it is not intended that indicating or implying relative importance.
In addition it is also necessary to explanation, in the description of the invention, unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.To those skilled in the art, can as the case may be understand that above-mentioned term exists
Concrete meaning in the present invention.
As shown in figure 1, the modularization energy-accumulating power station based on echelon battery of the invention mainly includes：Monitoring system, output
Bus, transformer and multiple in parallel modules, separate between each module, be independent of each other, each module includes phase respectively again
The battery module and energy accumulation current converter for mutually electrically connecting.Further, the battery of battery module uses the electric automobile do not disassembled
Retired electrokinetic cell.
With continued reference to Fig. 1, it is preferable that battery module and energy accumulation current converter in each module all have identical specification.Enter
One step, by energy accumulation current converter modularized design so that its function is more integrated, structure is simpler.Right-hand member (Fig. 1 of battery module
The right-hand member of middle battery module) electrically connected with the left end (left end of energy accumulation current converter in Fig. 1) of energy accumulation current converter so that battery module
Can be charged and discharged by energy accumulation current converter.Also, CAN-C buses (CAN-C1-Cn) are additionally provided between the two, are made
Obtaining can be communicated between battery module and energy accumulation current converter by it.It will be appreciated by persons skilled in the art that each mould
Battery module in block can also not have same size, during charging, only need to will be defeated by energy accumulation current converter corresponding thereto
Enter charging voltage, electric current that voltage conversion Cheng Yuqi matches；During electric discharge, only need to be by energy storage unsteady flow corresponding thereto
Device outputs it voltage, electric current conversion unanimously.
Further regard to Fig. 1, the right-hand member (right-hand member of energy accumulation current converter in Fig. 1) of the energy accumulation current converter of each module respectively with it is defeated
Go out bus (that is, the ac bus in Fig. 1) electrical connection, output bus left end (left end of transformer in Fig. 1) again with transformer
Electrical connection, the right-hand member (right-hand member of transformer in Fig. 1) of transformer is used to connect external system, and the external system is included but is not limited to
The charging system and energy-accumulating power station charged to energy-accumulating power station are its charging by charge carrier, such as electric automobile.Energy accumulation current converter
Battery module is conveyed to for the alternating current of charging system to be transformed into direct current, or the direct current that battery module is exported turns
Become to exchange electricity output, and energy accumulation current converter also has adjustment output voltage, the function of size of current.Further, this area
The voltage of battery module can also be adjusted direct output of DC current by technical staff as desired by energy accumulation current converter.Change
Sentence is talked about, although being illustrated that DC/AC energy accumulation current converters in Fig. 1, but it is also possible to be arranged as required to DC/DC energy storage unsteady flows
Device.
As can be known from Fig. 1, the left and right two ends of monitoring system are connected to CAN-A buses and CAN-B buses.CAN-A is total
Left end of the line again respectively with the battery module in each module is connected, and is used to obtain the information (example of the battery module in modules
Such as, battery module capacity, battery module temperature etc.), and energy management is carried out to each battery module according to the information for obtaining；CAN-
Right-hand member respectively with the energy accumulation current converter in each module is connected B buses again, is used to obtain energy accumulation current converter in modules
Information (for example, working condition, output voltage, output current), and charge and discharge control is carried out to energy accumulation current converter.
Further, in order to ensure safety when energy-accumulating power station works, monitoring system is provided with system-level protection device (in figure
It is not shown), the system-level protection device can be that software protection program can also be hardware protection device, or both total
Into in outside system jam, monitoring system can be protected to energy-accumulating power station, enabling energy-accumulating power station timely
It is out of service, it is ensured that accident does not occur.Specifically, a power threshold can be set, monitoring system detects each by CAN-B buses
The input power of the energy accumulation current converter of module is total and/or whether power output summation exceedes the threshold value, if it exceeds the threshold value, then
Energy-accumulating power station is out of service；Or a current threshold is set, monitoring system detects that the energy storage of each branch road becomes by CAN-B buses
The input current for flowing device is total and/or whether output current summation exceedes the threshold value, if it exceeds the threshold value, then energy-accumulating power station is exited
Operation；Or those skilled in the art can also according to actual conditions by other and the control mode that can implement to energy storage electricity
Protected at station.
Further, each module is both provided with branch protection device (not shown), specifically, each branch protection dress
Put and including tie point protection device and the second branch protection device, wherein, tie point protection device is used for protecting battery
Module, it is out of service in time when battery module is broken down；Second branch protection device is used for protecting energy accumulation current converter,
It is out of service in time when energy accumulation current converter is broken down.Tie point protection device and the second branch protection device all may be used
Being software protection program or hardware protection device, or software and hardware combining form, or those skilled in the art can think
The other forms for arriving.Further, those skilled in the art can also only be set according to actual conditions tie point protection device or
Second branch protection device is only set.When certain inside modules occurs minor failure, early warning is sent simultaneously by monitoring system first
Drop volume runs；When certain module occurs catastrophe failure, battery module or energy accumulation current converter in the module can be by first
Line protection device or the second branch protection device realize that autoprotection is acted, and enable the module out of service in time, and respectively
Module is additionally provided with automatic detection function, for being detected to the module for breaking down, and testing result is uploaded into monitoring
System.When a certain module is out of service, other modules are remained unchanged, and holding is normal to be run, and big impact and shadow will not be caused to system
Ring.Also, constant in order to ensure energy-accumulating power station power output, monitoring system can call the normal module of other off-duties to substitute
Malfunctioning module out of service.
It will be appreciated by persons skilled in the art that the quantity of the module in energy-accumulating power station can be default according to energy-accumulating power station
Specified energy storage capacity sets with the active volume of battery module.Specifically, the quantity of module >=(the specified energy storage of energy-accumulating power station)/
(active volume of battery module).
In sum, when energy-accumulating power station charges, be converted into for the alternating current of charging system by energy accumulation current converter by each module
Direct current charges to respective battery module；When energy-accumulating power station discharges, each module passes through energy accumulation current converter by battery module
Direct current be transformed into alternating current or direct output of DC current to being charged by charge carrier (for example, electric automobile).Energy storage electricity
The charge and discharge stood, is the capacitance of the battery module for obtaining by CAN-A buses and processing each module by monitoring system
Information, is realized by the operation of the respective energy accumulation current converter of module of CAN-B bus marcos.Therefore, energy storage electricity of the invention
Station is solved between existing echelon battery because there is caused by larger performance difference integrated set more difficult in energy-accumulating power station application
The problem of meter.And when minor failure occurs in certain module, the energy accumulation current converter of the module can be controlled to subtract by control system
Small-power is exported；When catastrophe failure occurs in certain module, the battery module or energy accumulation current converter of the module can be by corresponding
Tie point protection device or the second branch protection device make its out of service.
It will be appreciated by persons skilled in the art that the information (such as capacitance, temperature) of battery module can also be direct
Sent to energy accumulation current converter by CAN-C buses, energy accumulation current converter voluntarily treatment of battery module information, and carry out the behaviour of next step
Make.Therefore, those skilled in the art can omit CAN-C buses as needed, by monitoring system to the battery mould of each module
Block and energy accumulation current converter are monitored and control.
So far, combined preferred embodiment shown in the drawings describes technical scheme, but, this area
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to correlation technique feature, these
Technical scheme after changing or replacing it is fallen within protection scope of the present invention.
Claims (10)
1. a kind of modularization energy-accumulating power station based on echelon battery, it is characterised in that the energy-accumulating power station include output bus and
Multiple modules of the output bus are parallel to,
Each described module includes battery module and the energy accumulation current converter for being connected to the battery module, wherein, the battery mould
The battery of block is echelon battery, and the energy accumulation current converter is parallel to the output bus.
2. the modularization energy-accumulating power station of echelon battery is based on according to power requires 1, it is characterised in that the energy-accumulating power station is also wrapped
Monitoring system is included, the monitoring system is communicated by CAN with the battery module and/or the energy accumulation current converter.
3. according to power require 2 described in the modularization energy-accumulating power station based on echelon battery, it is characterised in that the monitoring system sets
Be equipped with system-level protection device, the system-level protection device can make in outside system jam the energy-accumulating power station and
When it is out of service.
4. according to power require 3 described in the modularization energy-accumulating power station based on echelon battery, it is characterised in that each described module
Branch protection device is provided with, the branch protection device can make the module out of service in time when breaking down.
5. the modularization energy-accumulating power station based on echelon battery according to power requires 4, it is characterised in that branch protection dress
Put including tie point protection device and the second branch protection device, the tie point protection device can make the battery mould
Block is out of service in time when breaking down, and the second branch protection device can make the energy accumulation current converter break down
When it is out of service in time.
6. according to power require 2 described in the modularization energy-accumulating power station based on echelon battery, it is characterised in that in each described module
The battery module and the energy accumulation current converter between communicated with one another also by CAN.
7. the modularization energy-accumulating power station based on echelon battery according to any one of power requires 1 to 6, it is characterised in that every
The battery module in the individual module has identical specification；And/or the energy storage in each described module becomes
Stream device also has identical specification.
8. according to power require 7 described in the modularization energy-accumulating power station based on echelon battery, it is characterised in that the energy-accumulating power station is also
Including transformer, one end of the transformer electrically connects with the output bus, and the other end of the transformer is used to connect outer
Portion's system.
9. according to power require 8 described in the modularization energy-accumulating power station based on echelon battery, it is characterised in that the external system bag
Include to the energy-accumulating power station charge charging system and the energy-accumulating power station be its charge by charge carrier.
10. according to power require 9 described in the modularization energy-accumulating power station based on echelon battery, it is characterised in that the echelon battery
It is the retired electric automobile power battery do not disassembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940357.7A CN106849368A (en) | 2016-10-25 | 2016-10-25 | Modularization energy-accumulating power station based on echelon battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940357.7A CN106849368A (en) | 2016-10-25 | 2016-10-25 | Modularization energy-accumulating power station based on echelon battery |
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| Publication Number | Publication Date |
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| CN106849368A true CN106849368A (en) | 2017-06-13 |
Family
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| CN201610940357.7A Pending CN106849368A (en) | 2016-10-25 | 2016-10-25 | Modularization energy-accumulating power station based on echelon battery |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134145A (en) * | 2017-12-27 | 2018-06-08 | 程志均 | A kind of battery pack packet method utilized convenient for echelon |
| CN108172718A (en) * | 2017-12-28 | 2018-06-15 | 程志均 | A kind of lithium battery for automobile power packet utilized convenient for echelon |
| CN108172747A (en) * | 2018-01-08 | 2018-06-15 | 程志均 | It is a kind of first go here and there after and type dynamic lithium battery group |
| CN110299734A (en) * | 2018-03-23 | 2019-10-01 | 比亚迪股份有限公司 | Energy-storage system and the method for carrying out energy storage using echelon battery pack |
| CN110299735A (en) * | 2018-03-23 | 2019-10-01 | 比亚迪股份有限公司 | Integrated form power battery pack, energy-storage system and the method using the energy storage of echelon battery pack |
| CN110299733A (en) * | 2018-03-23 | 2019-10-01 | 比亚迪股份有限公司 | Integrated form power battery pack, energy-storage system and the method using the energy storage of echelon battery pack |
| CN110676833A (en) * | 2018-07-02 | 2020-01-10 | 比亚迪股份有限公司 | Track energy feedback system and control method thereof |
| CN111193280A (en) * | 2020-02-17 | 2020-05-22 | 长沙矿冶研究院有限责任公司 | Multi-branch modular energy storage system suitable for echelon battery utilization |
| CN112769152A (en) * | 2020-12-28 | 2021-05-07 | 国网广汇(上海)电动汽车服务有限公司 | Power battery energy storage system and control method thereof |
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| WO2016029128A1 (en) * | 2014-08-22 | 2016-02-25 | East Penn Manufacturing Co. | Control of multiple battery groups |
| CN205081480U (en) * | 2015-09-17 | 2016-03-09 | 比亚迪股份有限公司 | Battery energy storage system |
| CN105977553A (en) * | 2016-02-29 | 2016-09-28 | 上海煦达新能源科技有限公司 | Network-level bidirectional energy storage supervisory platform for gradient reuse of electric vehicle retired battery |
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| WO2016029128A1 (en) * | 2014-08-22 | 2016-02-25 | East Penn Manufacturing Co. | Control of multiple battery groups |
| CN205081480U (en) * | 2015-09-17 | 2016-03-09 | 比亚迪股份有限公司 | Battery energy storage system |
| CN105977553A (en) * | 2016-02-29 | 2016-09-28 | 上海煦达新能源科技有限公司 | Network-level bidirectional energy storage supervisory platform for gradient reuse of electric vehicle retired battery |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134145A (en) * | 2017-12-27 | 2018-06-08 | 程志均 | A kind of battery pack packet method utilized convenient for echelon |
| CN108172718A (en) * | 2017-12-28 | 2018-06-15 | 程志均 | A kind of lithium battery for automobile power packet utilized convenient for echelon |
| CN108172747A (en) * | 2018-01-08 | 2018-06-15 | 程志均 | It is a kind of first go here and there after and type dynamic lithium battery group |
| CN110299734A (en) * | 2018-03-23 | 2019-10-01 | 比亚迪股份有限公司 | Energy-storage system and the method for carrying out energy storage using echelon battery pack |
| CN110299735A (en) * | 2018-03-23 | 2019-10-01 | 比亚迪股份有限公司 | Integrated form power battery pack, energy-storage system and the method using the energy storage of echelon battery pack |
| CN110299733A (en) * | 2018-03-23 | 2019-10-01 | 比亚迪股份有限公司 | Integrated form power battery pack, energy-storage system and the method using the energy storage of echelon battery pack |
| CN110299733B (en) * | 2018-03-23 | 2023-04-07 | 比亚迪股份有限公司 | Integrated power battery pack, energy storage system and method for storing energy by using echelon battery pack |
| CN110676833A (en) * | 2018-07-02 | 2020-01-10 | 比亚迪股份有限公司 | Track energy feedback system and control method thereof |
| CN111193280A (en) * | 2020-02-17 | 2020-05-22 | 长沙矿冶研究院有限责任公司 | Multi-branch modular energy storage system suitable for echelon battery utilization |
| CN112769152A (en) * | 2020-12-28 | 2021-05-07 | 国网广汇(上海)电动汽车服务有限公司 | Power battery energy storage system and control method thereof |
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Application publication date: 20170613 |