CN111326804A - Lithium battery BMS safety chain control system - Google Patents
Lithium battery BMS safety chain control system Download PDFInfo
- Publication number
- CN111326804A CN111326804A CN201811542152.9A CN201811542152A CN111326804A CN 111326804 A CN111326804 A CN 111326804A CN 201811542152 A CN201811542152 A CN 201811542152A CN 111326804 A CN111326804 A CN 111326804A
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- Prior art keywords
- management unit
- battery management
- minimum battery
- safety chain
- main control
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 36
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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Classifications
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a lithium battery BMS safety chain control system, which belongs to the field of energy storage batteries and comprises a minimum battery management unit and a main control unit, wherein the minimum battery management unit is connected with the main control unit in a series connection mode of a power cable, a communication cable or a safety chain cable, the minimum battery management unit comprises a minimum battery management unit voltage sampling module, a minimum battery management unit temperature equalization circuit module, a minimum battery management unit temperature sampling module, a minimum battery management unit communication module and a minimum battery management unit control module, the main control unit structurally comprises a main control unit control module, a main control unit communication module and a main control unit control relay, and fault judgment is carried out by detecting the communication state and the data state of the minimum battery management unit communication module. The invention adds a BMS control safety chain loop, realizes the final protection of the lithium battery and reduces the failure risk of the system to the lowest.
Description
Technical Field
The invention relates to the field of energy storage batteries, in particular to a lithium battery BMS safety chain control system.
Background
Along with the popularization of green energy-saving concept, power battery system and energy storage battery system become the new force army of new forms of energy trade development, and the BMS system plays bigger and bigger effect in power and energy storage battery field as battery system's module link, and the quality of BMS system directly determines battery system's stability, and the safety design of BMS system self directly determines the success or failure of system.
The current BMS system adopts 3-level framework more, adopts data communication between the 3-level framework, can solve general potential safety hazard, special circumstances, like communication rate restriction, CPU malfunctioning, communication line disconnection, voltage sampling module inefficacy, single section battery short-time overcharge overdischarge, current BMS framework response speed is restricted or can't respond at all, directly causes battery damage, short circuit, conflagration or even bodily injury.
The fields of power battery systems and energy storage battery systems urgently need a BMS management system which is mainly safe, and can ensure the reliable protection of batteries when communication rate is limited, a CPU fails, a communication line is disconnected, a voltage sampling module fails, and a single battery is overcharged and overdischarged in a short time.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides a lithium battery BMS safety chain control system, namely, a hardware safety chain loop is added on the basis of the original BMS.
The invention is realized by the following technical scheme:
the invention provides a lithium battery BMS safety chain control system, which comprises a minimum battery management unit and a main control unit, wherein the minimum battery management unit is connected with the main control unit in a mode of connecting a power cable, a communication cable or a safety chain cable in series,
wherein the minimum battery management unit comprises a minimum battery management unit voltage sampling module, a minimum battery management unit temperature equalizing circuit module, a minimum battery management unit temperature sampling module, a minimum battery management unit communication module and a minimum battery management unit control module,
the main control unit structurally comprises a main control unit control module, a main control unit communication module and a main control unit control relay, fault judgment is carried out by detecting the communication state and the data state of the minimum battery management unit communication module, and when communication faults or communication data are abnormal, the main control unit directly enters the fault state.
The main control unit, it constitutes BMS safety chain with main control unit control relay, minimum battery management unit, and when the trouble takes place, main control unit and main control unit control relay disconnection realize the control to main control unit.
The structure of the minimum battery management unit comprises 2 or more than 2 minimum battery management unit voltage sampling modules.
Preferably, the master control unit may directly disconnect the BMS safety chain when the minimum battery management unit control module fails.
Preferably, when the main control unit control module fails, the minimum battery management unit enters a failure mode, and disconnects the BMS safety chain.
Preferably, when the minimum battery management unit voltage sampling module fails, the minimum battery management unit enters a failure mode, and disconnects the BMS safety chain.
Preferably, when the minimum battery management unit fails, the minimum battery management unit disconnects the BMS safety chain to implement safety protection of the electrical appliance.
Preferably, when the minimum battery management unit temperature sampling module fails, the minimum battery management unit enters a failure mode, and disconnects the BMS safety chain.
Preferably, when the minimum battery management unit temperature equalization circuit module has a fault, the minimum battery management unit enters a fault mode, and the BMS control safety chain is disconnected.
Preferably, when the minimum battery management unit communication module fails, the minimum battery management unit enters a failure mode, and disconnects the BMS control safety chain.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, a BMS control safety chain loop is added on the basis of the original BMS, so that the final protection of the lithium battery is realized, and the risk of system failure is reduced to the lowest.
(2) The invention adopts 2 or more than 2 battery voltage sampling circuits, each of which is not affected, can realize control independently and can reduce the failure risk to the lowest.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a block diagram of the present invention.
In the figure: the system comprises a 1-minimum battery management unit, a 2-minimum battery management unit voltage sampling module, a 4-minimum battery management unit temperature equalization circuit module, a 5-minimum battery management unit temperature sampling module, a 6-minimum battery management unit communication module, a 7-minimum battery management unit control module 1 module, an 8-minimum battery management unit safety chain relay module, a 9-main control unit, a 10-main control unit control module, an 11-main control unit communication module and a 12-main control unit control relay.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
As shown in fig. 1, the present invention provides a safety chain control system for a lithium battery BMS, comprising a minimum battery management unit and a main control unit, wherein the minimum battery management unit is connected to the main control unit by a power cable, a communication cable or a safety chain cable in series,
wherein the minimum battery management unit comprises a minimum battery management unit voltage sampling module, a minimum battery management unit temperature equalizing circuit module, a minimum battery management unit temperature sampling module, a minimum battery management unit communication module and a minimum battery management unit control module,
the main control unit structurally comprises a main control unit control module, a main control unit communication module and a main control unit control relay, fault judgment is carried out by detecting the communication state and the data state of the minimum battery management unit communication module, and when communication faults or communication data are abnormal, the main control unit directly enters the fault state.
The main control unit, it constitutes BMS safety chain with main control unit control relay, minimum battery management unit, and when the trouble takes place, main control unit and main control unit control relay disconnection realize the control to main control unit.
The structure of the minimum battery management unit comprises 2 or more than 2 minimum battery management unit voltage sampling modules.
Further, the main control unit may directly disconnect the BMS safety chain when the minimum battery management unit control module fails.
Further, when the main control unit control module fails, the minimum battery management unit enters a failure mode, and the BMS safety chain is disconnected.
Further, when the minimum battery management unit voltage sampling module fails, the minimum battery management unit enters a failure mode, and the BMS safety chain is disconnected.
Further, when the minimum battery management unit fails, the minimum battery management unit disconnects the BMS safety chain, thereby implementing safety protection of the electrical appliance.
Further, when the minimum battery management unit temperature sampling module fails, the minimum battery management unit enters a failure mode, and the BMS safety chain is disconnected.
Further, when the minimum battery management unit temperature equalization circuit module has a fault, the minimum battery management unit enters a fault mode, and the BMS control safety chain is disconnected.
Further, when the minimum battery management unit communication module fails, the minimum battery management unit enters a failure mode, and the BMS control safety chain is disconnected.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. The utility model provides a lithium cell BMS safety chain control system which characterized in that: comprises a minimum battery management unit and a main control unit, wherein the minimum battery management unit is connected with the main control unit in a serial connection mode through a power cable, a communication cable or a safety chain cable,
wherein the minimum battery management unit comprises a minimum battery management unit voltage sampling module, a minimum battery management unit temperature equalizing circuit module, a minimum battery management unit temperature sampling module, a minimum battery management unit communication module and a minimum battery management unit control module,
the main control unit structurally comprises a main control unit control module, a main control unit communication module and a main control unit control relay, fault judgment is carried out by detecting the communication state and the data state of the minimum battery management unit communication module, and when communication faults or communication data are abnormal, the main control unit directly enters the fault state.
2. The lithium battery BMS safety chain control system of claim 1, characterized in that: the main control unit, it constitutes BMS safety chain with main control unit control relay, minimum battery management unit, and when the trouble takes place, main control unit and main control unit control relay disconnection realize the control to main control unit.
3. The lithium battery BMS safety chain control system of claim 1, characterized in that: the structure of the minimum battery management unit comprises 2 or more than 2 minimum battery management unit voltage sampling modules.
4. The lithium battery BMS safety chain control system of claim 1, characterized in that: the master control unit may directly disconnect the BMS safety chain when the minimum battery management unit control module fails.
5. The lithium battery BMS safety chain control system of claim 1, characterized in that: when the main control unit control module fails, the minimum battery management unit enters a failure mode, and the BMS safety chain is disconnected.
6. The lithium battery BMS safety chain control system of claim 1, characterized in that: and when the voltage sampling module of the minimum battery management unit fails, the minimum battery management unit enters a fault mode, and the BMS safety chain is disconnected.
7. The lithium battery BMS safety chain control system of claim 1, characterized in that: when the minimum battery management unit breaks down, the minimum battery management unit disconnects the BMS safety chain, and safety protection of the electric appliance is realized.
8. The lithium battery BMS safety chain control system of claim 1, characterized in that: and when the minimum battery management unit temperature sampling module has a fault, the minimum battery management unit enters a fault mode, and the BMS safety chain is disconnected.
9. The lithium battery BMS safety chain control system of claim 1, characterized in that: and when the temperature equalization circuit module of the minimum battery management unit has a fault, the minimum battery management unit enters a fault mode, and the BMS control safety chain is disconnected.
10. The lithium battery BMS safety chain control system of claim 1, characterized in that: and when the communication module of the minimum battery management unit has a fault, the minimum battery management unit enters a fault mode, and the BMS control safety chain is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542152.9A CN111326804A (en) | 2018-12-17 | 2018-12-17 | Lithium battery BMS safety chain control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542152.9A CN111326804A (en) | 2018-12-17 | 2018-12-17 | Lithium battery BMS safety chain control system |
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| Publication Number | Publication Date |
|---|---|
| CN111326804A true CN111326804A (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811542152.9A Pending CN111326804A (en) | 2018-12-17 | 2018-12-17 | Lithium battery BMS safety chain control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290121A (en) * | 2020-09-30 | 2021-01-29 | 江苏索尔新能源科技股份有限公司 | Battery heating system and battery heating method |
| CN116014903A (en) * | 2023-03-27 | 2023-04-25 | 江苏林洋亿纬储能科技有限公司 | Coordination control method and system based on energy storage safety chain identification |
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| CN105406559A (en) * | 2015-12-30 | 2016-03-16 | 深圳天邦达科技有限公司 | Battery management system for low-speed electric vehicle |
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2018
- 2018-12-17 CN CN201811542152.9A patent/CN111326804A/en active Pending
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| US20140175874A1 (en) * | 2011-05-31 | 2014-06-26 | Samsung SDI C., Ltd. | Security architecture, battery and motor vehicle having a corresponding battery |
| CN105446288A (en) * | 2015-04-16 | 2016-03-30 | 武汉众宇动力系统科技有限公司 | Fuel cell distributed control system and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290121A (en) * | 2020-09-30 | 2021-01-29 | 江苏索尔新能源科技股份有限公司 | Battery heating system and battery heating method |
| CN112290121B (en) * | 2020-09-30 | 2022-04-05 | 江苏索尔新能源科技股份有限公司 | Battery heating system and battery heating method |
| CN116014903A (en) * | 2023-03-27 | 2023-04-25 | 江苏林洋亿纬储能科技有限公司 | Coordination control method and system based on energy storage safety chain identification |
| CN116014903B (en) * | 2023-03-27 | 2023-07-04 | 江苏林洋亿纬储能科技有限公司 | Coordination control method and system based on energy storage safety chain identification |
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Effective date of registration: 20211122 Address after: 214000 510, building B, Liye building, No. 20 Qingyuan Road, Xinwu District, Wuxi City, Jiangsu Province Applicant after: Jiangsu Yuanying Technology Co.,Ltd. Address before: 214100 room 4203, No. 18, jinguili, Binhu District, Wuxi City, Jiangsu Province Applicant before: Zhang Qiaoling |