CN109449341A - A kind of battery energy storage system framework - Google Patents
A kind of battery energy storage system framework Download PDFInfo
- Publication number
- CN109449341A CN109449341A CN201811550011.1A CN201811550011A CN109449341A CN 109449341 A CN109449341 A CN 109449341A CN 201811550011 A CN201811550011 A CN 201811550011A CN 109449341 A CN109449341 A CN 109449341A
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- China
- Prior art keywords
- battery
- energy storage
- storage system
- battery modules
- module
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- 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.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 35
- 230000005611 electricity Effects 0.000 claims description 13
- 238000004079 fireproofing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of battery energy storage system frameworks, battery modules and several DC-DC modules for being used to control battery modules including battery management system, several parallel connections, wherein, the corresponding battery modules of one DC-DC module, each battery modules are connected with corresponding DC-DC module, and battery management system is connected with each DC-DC module, and the control to battery modules is realized by control DC-DC module, the safety of the energy-storage system framework, stability and system effectiveness are higher, and cost is relatively low.
Description
Technical field
The invention belongs to field of battery management, are related to a kind of battery energy storage system framework.
Background technique
With the access of a large amount of renewable energy, the randomness and fluctuation of power output exacerbate electricity supply and demand in Generation Side
The uncertainty of relationship, it is bigger and bigger that supply and demand both ends " resultant force " results in the imbalance of supply-demand relationship, peak-valley difference, thus generate electricity and
Power supply system faces a large amount of energy storage service notch, application demand of the energy-storage system in renewable energy and traditional thermal power generation side
It is more strong.
Energy storage technology route is more, but integrated system solution is not yet mature, and energy storage business model is still in exploration rank
Section, lead carbon battery and lithium ion battery are the battery energy storages for being expected to realize commercial applications at first.Domestic and international correlation scholar is
Energy-storage battery ontology is had made intensive studies, is achieved in terms of its service life, efficiency and levelized power cost larger
Progress.If wanting to apply current battery energy storage technology solution peak regulation and frequency modulation in renewable energy and thermal power generation system to ask
Topic, still has larger safety problem, stable problem and cost problem.This is mainly due to current battery energy storage technologies to generally use
Battery pack series connection in parallel mode again in groups, i.e., by battery modules series connection raising battery strings voltage class, in order to meet system
Capacity, then battery is series-parallel, finally it is built into high-voltage battery system or low-voltage, high-current battery system.Due to battery modules string
Join, it, can be to electricity when a battery modules failure (such as short circuit, open circuit) without isolation and Disposal Measures between battery modules
The electrical safety of other batteries causes to seriously affect on the road;Since battery modules itself are without heat-insulated and firebreak device, when one
When battery modules thermal runaway occurs on fire, adjacent mould group burning can be directly resulted in, do not can avoid, there are serious security risks.
In addition to this, prior art is battery modules cascaded structure, very high to battery cell coherence request, causes battery body
Higher cost, and in actual application, battery consistency is difficult strictly to ensure again.When a battery modules when something goes wrong,
Adjacent battery modules can be impacted, cause whole string battery to be unable to run, cause the operational efficiency of battery energy storage system low
Under.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of battery energy storage system framework is provided, it should
The safety of energy-storage system framework, stability and system effectiveness are higher, and cost is relatively low.
In order to achieve the above objectives, battery energy storage system framework of the present invention, which is characterized in that including battery management system
System, several parallel connection battery modules and several be used to control the DC-DC modules of battery modules, wherein a DC-DC module pair
A battery modules are answered, each battery modules are connected with corresponding DC-DC module, battery management system and each DC-DC module phase
Connection.
Battery management system controls battery modules by way of controlling DC-DC module and opens or closes;
It is that mode in parallel connects between each DC-DC module;
Battery modules are located in shell, and fire proofing material is filled between shell and battery modules.
Each battery modules include several battery cells.
The number of battery cell is more than or equal to 2 in each battery modules.
The capacity of each battery cell is all larger than 0 and is less than or equal to 100kwh.
It is connected in parallel or is connected in series between each battery cell in same battery modules.
Each battery cell is lithium ion battery, lead-acid battery or lead carbon battery.
The fire proofing material is elastic fireproof glue, Flameproof composite material or metal.
DC-DC module is integrated with BMS battery system.
The type of each battery cell is same or different in same battery modules, the class of battery cell in different battery modules
Type is same or different.
The invention has the following advantages:
If battery energy storage system framework of the present invention include battery management system, several parallel connections battery modules and
Do the DC-DC module for controlling battery modules, the corresponding battery modules of one of DC-DC module, each battery modules with
Corresponding DC-DC module is connected, and battery management system is connected with each DC-DC module, so that each battery modules are direct
It is connected in parallel, when a battery modules failure, the electrical safety of other battery modules on circuit will not be impacted, system
The safety and high stability of framework.Each battery modules are controlled by individual DC-DC module simultaneously, therefore can be same
Different type, different size, different number, different voltages and different grade battery packs are managed in system, it is each to be promoted
The stability of battery modules synthetic operation increases the effective run time of battery system, reduces battery body cost.
Further, battery modules are located in shell, and fire proofing material is filled between shell and battery modules, to realize to list
A battery modules carry out fire prevention isolation, to improve the safety of existing energy storage technology.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 it is battery management system, 2 be DC-DC module, 3 be shell, 4 is battery modules.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
With reference to Fig. 1, battery energy storage system framework of the present invention include battery management system 1, several battery modules 4 with
It is and several for controlling the DC-DC module 2 of battery modules 4, wherein the corresponding battery modules 4 of a DC-DC module 2, each electricity
Chi Mo group 4 is connected with corresponding DC-DC module 2, and battery management system 1 is connected with each DC-DC module 2.
Battery management system controls opening or closing for battery modules 4 by way of controlling DC-DC module;
It is that mode in parallel connects between each DC-DC module;
Battery modules are located in shell, and fire proofing material is filled between shell and battery modules.
Each battery modules 4 include several battery cells, wherein the number of battery cell is more than or equal in each battery modules 4
2, the capacity of each battery cell is all larger than 0 and is less than or equal to 100kwh;It is in parallel between each battery cell in same battery modules 4
Connection is connected in series;Each battery cell is lithium ion battery, lead-acid battery or lead carbon battery;In same battery modules 4
The type of each battery cell is same or different, and the type of battery cell is same or different in different battery modules 4.
Battery energy storage system framework of the present invention be it is flat tree-like, composed in parallel by multiple small-capacity cells mould groups 4,
Each battery modules 4 are individually controlled by different DC-DC modules 2, and level logical construction is strong, each electricity in each battery modules 4
Pond monomer is connected in parallel or is connected in series.
2 module of DC-DC module is integrated with BMS battery system, carries out to the charge-discharge performance of battery cell in battery modules 4
Monitoring and management, obtainable information includes voltage value, current value and temperature value of battery cell etc., and determines need according to this
Carry out electric quantity balancing battery cell, and control the high battery cell of the electricity battery cell low to electricity carry out group in electricity it is equal
Weighing apparatus.
For example, the present invention includes 200 5kWh battery modules 4, battery modules are realized using 200 DC-DC modules 2 are in parallel
4 is in parallel, to form the energy-storage system container of 1MWh.
Battery management system 1 directly detects and manages the overall process of battery operation, the survey including battery operation essential information
Amount, electricity estimation, battery cell equilibrium, system running state analysis, system fault diagnosis and protection, system power-on and power-off strategy control
System and data communication, can be according to the operating condition of load, the quantity of the DC-DC module 2 of adjust automatically work, it is ensured that system works most
Good efficiency section.
In embodiment provided herein, disclosed technology contents, mainly the battery mould of battery energy storage system
Group framework, not comprising other assemblies and management control unit in battery energy storage system, smoke detection etc., it should be understood that all
Battery energy storage system based on this framework is included in scope of patent protection of the invention.
In embodiment provided herein, it should be understood that disclosed technology contents, it can be by another way
It realizes.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, can be one kind
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of battery energy storage system framework, which is characterized in that the battery modules including battery management system (1), several parallel connections
(4) and several for controlling the DC-DC module (2) of battery modules (4), wherein the corresponding electricity of a DC-DC module (2)
Chi Mo group (4), each battery modules (4) are connected with corresponding DC-DC module (2), battery management system (1) and each DC-DC mould
Block (2) is connected.
2. battery energy storage system framework according to claim 1, which is characterized in that battery management system (1) is by DC-
The mode that DC module (2) is controlled controls opening or closing for battery modules (4).
3. battery energy storage system framework according to claim 1, which is characterized in that for simultaneously between each DC-DC module (2)
The mode of connection connects.
4. battery energy storage system framework according to claim 1, which is characterized in that battery modules (4) are located at the shell
(3) in, and fire proofing material is filled between shell (3) and battery modules (4);The fire proofing material is elastic fireproof glue, fire prevention
Composite material or metal.
5. battery energy storage system framework according to claim 1, which is characterized in that each battery modules (4) include several electricity
Pond monomer, wherein the number of battery cell is more than or equal to 2 in each battery modules (4).
6. battery energy storage system framework according to claim 5, which is characterized in that the capacity of each battery cell is all larger than 0
And it is less than or equal to 100kwh.
7. battery energy storage system framework according to claim 5, which is characterized in that each electricity in same battery modules (4)
It is connected in parallel or is connected in series between the monomer of pond.
8. battery energy storage system framework according to claim 5, which is characterized in that each battery cell be lithium ion battery,
Lead-acid battery or lead carbon battery.
9. battery energy storage system framework according to claim 1, which is characterized in that DC-DC module (2) is integrated with BMS electricity
Cell system.
10. battery energy storage system framework according to claim 5, which is characterized in that each battery in same battery modules (4)
The type of monomer is same or different, and the type of battery cell is same or different in different battery modules (4).
Priority Applications (1)
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CN201811550011.1A CN109449341A (en) | 2018-12-18 | 2018-12-18 | A kind of battery energy storage system framework |
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CN201811550011.1A CN109449341A (en) | 2018-12-18 | 2018-12-18 | A kind of battery energy storage system framework |
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Publication Number | Publication Date |
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CN109449341A true CN109449341A (en) | 2019-03-08 |
Family
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112713321A (en) * | 2021-01-08 | 2021-04-27 | 华能陇东能源有限责任公司 | Solid-state battery and liquid battery hybrid energy storage system |
CN112803554A (en) * | 2021-03-08 | 2021-05-14 | 东莞新能安科技有限公司 | Energy storage system and power utilization device applying same |
WO2022017534A1 (en) * | 2020-07-24 | 2022-01-27 | 中国华能集团清洁能源技术研究院有限公司 | Distributed battery energy storage system capable of single-stage conversion |
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CN107947256A (en) * | 2017-11-07 | 2018-04-20 | 华为技术有限公司 | A kind of energy-storage system and energy storage system control method |
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2018
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JP2000036320A (en) * | 1998-07-16 | 2000-02-02 | Ngk Insulators Ltd | Operation control system and operating method for battery consisting of sodium-sulfur cells |
KR20080037223A (en) * | 2006-10-25 | 2008-04-30 | 현대자동차주식회사 | United battery management system and dc/dc converter |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2022017534A1 (en) * | 2020-07-24 | 2022-01-27 | 中国华能集团清洁能源技术研究院有限公司 | Distributed battery energy storage system capable of single-stage conversion |
CN112713321A (en) * | 2021-01-08 | 2021-04-27 | 华能陇东能源有限责任公司 | Solid-state battery and liquid battery hybrid energy storage system |
CN112803554A (en) * | 2021-03-08 | 2021-05-14 | 东莞新能安科技有限公司 | Energy storage system and power utilization device applying same |
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Application publication date: 20190308 |
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