CN109449341A - A kind of battery energy storage system framework - Google Patents

A kind of battery energy storage system framework Download PDF

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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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CN
China
Prior art keywords
battery
energy storage
storage system
battery modules
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811550011.1A
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Chinese (zh)
Inventor
曹曦
刘明义
朱勇
曹传钊
朱连峻
郑建涛
李晴
徐越
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Huaneng Clean Energy Research Institute
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Huaneng Clean Energy Research Institute
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Publication date
Application filed by Huaneng Clean Energy Research Institute filed Critical Huaneng Clean Energy Research Institute
Priority to CN201811550011.1A priority Critical patent/CN109449341A/en
Publication of CN109449341A publication Critical patent/CN109449341A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/10Batteries in stationary systems, e.g. emergency power source in plant
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • 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

A kind of battery energy storage system framework
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).
CN201811550011.1A 2018-12-18 2018-12-18 A kind of battery energy storage system framework Pending CN109449341A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102064356A (en) * 2010-12-21 2011-05-18 深圳市佳华利道新技术开发有限公司 Battery management system
CN201886063U (en) * 2010-12-21 2011-06-29 深圳市佳华利道新技术开发有限公司 Battery management system and single battery voltage sampling circuit in controller of battery management system
CN203800094U (en) * 2014-04-14 2014-08-27 浙江君飞科技有限公司 Storage battery with fire prevention function
CN105048485A (en) * 2015-09-01 2015-11-11 山东圣阳电源股份有限公司 Energy storage bidirectional current converter and control method thereof
JP2016052170A (en) * 2014-08-29 2016-04-11 三洋電機株式会社 Power storage system, management device, and dc/dc converter
CN105591050A (en) * 2016-03-10 2016-05-18 曾丹玢 Battery system and electric automobile with same and energy storage system
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
CN209217062U (en) * 2018-12-18 2019-08-06 中国华能集团清洁能源技术研究院有限公司 A kind of battery energy storage system framework

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102064356A (en) * 2010-12-21 2011-05-18 深圳市佳华利道新技术开发有限公司 Battery management system
CN201886063U (en) * 2010-12-21 2011-06-29 深圳市佳华利道新技术开发有限公司 Battery management system and single battery voltage sampling circuit in controller of battery management system
CN203800094U (en) * 2014-04-14 2014-08-27 浙江君飞科技有限公司 Storage battery with fire prevention function
JP2016052170A (en) * 2014-08-29 2016-04-11 三洋電機株式会社 Power storage system, management device, and dc/dc converter
CN105048485A (en) * 2015-09-01 2015-11-11 山东圣阳电源股份有限公司 Energy storage bidirectional current converter and control method thereof
CN105591050A (en) * 2016-03-10 2016-05-18 曾丹玢 Battery system and electric automobile with same and energy storage system
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
CN209217062U (en) * 2018-12-18 2019-08-06 中国华能集团清洁能源技术研究院有限公司 A kind of battery energy storage system framework

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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