CN116598613B - Energy storage management system - Google Patents
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- CN116598613B CN116598613B CN202310566101.4A CN202310566101A CN116598613B CN 116598613 B CN116598613 B CN 116598613B CN 202310566101 A CN202310566101 A CN 202310566101A CN 116598613 B CN116598613 B CN 116598613B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 53
- 238000004458 analytical method Methods 0.000 claims abstract description 65
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000005265 energy consumption Methods 0.000 claims description 86
- 239000000779 smoke Substances 0.000 claims description 53
- 238000012423 maintenance Methods 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 28
- 239000007921 spray Substances 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 13
- 239000000443 aerosol Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000007726 management method Methods 0.000 abstract description 64
- 238000012983 electrochemical energy storage Methods 0.000 abstract description 7
- 230000000007 visual effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012552 review Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
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- 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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- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of electrochemical energy storage management, in particular to an energy storage management system, which comprises an energy storage subsystem, a background management subsystem and a user terminal, wherein the background management subsystem comprises a processing unit, an analysis unit, a storage unit and a report generation unit, the processing unit is used for processing all acquired information, the analysis unit is used for analyzing all processed information and forming an analysis result and a control instruction, the report generation unit is used for generating an analysis report according to the analysis result, the storage unit is used for storing all processed information, the analysis result and the analysis report, the control unit is used for controlling the operation of a battery pack according to the control instruction, and the user terminal is used for checking the analysis report according to the granted authority. The invention also provides an energy storage management method, which is more efficient in management of the battery pack through the system, forms an analysis report and is more visual in display of various management data.
Description
Technical Field
The invention relates to the technical field of electrochemical energy storage management, in particular to an energy storage management system.
Background
Currently, electrochemical energy storage is in a very hot development state, the application of an electrochemical energy storage technology is also becoming wider and wider, and as the use level and application level of an energy storage battery are gradually increased, the control and intelligent management of the electrochemical energy storage are also becoming important. The basic unit of electrochemical energy storage is a single cell, and a plurality of single cells are assembled to form an energy storage battery pack, and the plurality of energy storage battery packs are arranged in an energy storage container and are used for storing and supplying power for large markets, factories and cells. At present, in the aspect of energy storage management, the defects are that: efficient analysis and query-related management data is inconvenient, and there are few intuitive analysis reports generated for review, management is inefficient.
Disclosure of Invention
One aspect of the present invention is to provide an energy storage management system, so as to implement efficient management of a battery pack and form an analysis report, and display various management data more intuitively.
The energy storage management system comprises an energy storage subsystem, a background management subsystem and a user terminal, wherein the energy storage subsystem comprises a battery pack, a control unit and an acquisition unit, the control unit is arranged on the battery pack, the acquisition unit comprises an operation parameter acquisition module and is used for acquiring various information in the battery pack, the background management subsystem comprises a processing unit, an analysis unit, a storage unit and a report generation unit, the processing unit is used for processing the acquired various information, the analysis unit is used for analyzing the processed various information and forming an analysis result and a control instruction, the report generation unit is used for generating an analysis report according to the analysis result, the storage unit is used for storing the processed various information, the analysis result and the analysis report, the control unit is used for controlling the operation of the battery pack according to the control instruction, and the user terminal is used for checking the analysis report according to the granted permission.
The invention has the beneficial effects that: according to the invention, the analysis unit analyzes the processed various information and forms an analysis result and a control instruction, the control unit controls the operation of the battery pack according to the control instruction to form closed-loop control, the real-time operation condition of each battery core and other components in the current battery pack is fed back according to the collected various information, and feedback control is formed based on the collected various information, so that the operation control of the battery pack is more reasonable and efficient; the storage unit stores the processed information, analysis result and analysis report, so that the management data related to the battery pack can be conveniently and effectively analyzed and efficiently inquired, wherein the management data comprises the information, the analysis result and the analysis report, and can also comprise the control parameters of the control unit and the record data of management activities; the report generation unit generates an analysis report according to the analysis result, and the user terminal can view the analysis report according to the granted authority, so that the analysis report is more convenient to review, and various management or control data are more intuitively displayed through the form of the analysis report.
The preferred embodiment of the invention is that each item of information acquired by the acquisition unit comprises temperature information, smoke concentration information, gas composition information and power information of the battery cells in the battery pack.
The beneficial effects are that: the temperature information, the smoke concentration information, the gas composition information and the power information of the battery cells in the battery pack are key information in the battery pack, the temperature information reflects the current temperature condition of each battery cell, the smoke concentration information and the gas composition are combined with the temperature information, whether the current battery pack has thermal runaway to cause fire disaster can be judged, the power information of the battery cells reflects the power condition of each battery cell, and a basis is provided for adjusting the power of each battery cell to enable each battery cell to be in a power balance state.
The invention is characterized in that the storage unit stores the standard energy consumption information of each electric component related in the control unit and the operation parameter acquisition module on the battery pack, the acquisition unit further comprises an energy consumption acquisition module, the energy consumption acquisition module is further used for acquiring the real-time energy consumption information of each electric component related in the control unit and the operation parameter acquisition module and transmitting the real-time energy consumption information to the background management subsystem, the background management subsystem further comprises a comparison unit, and the comparison unit is used for comparing the acquired real-time energy consumption information with the standard energy consumption information, and if the real-time energy consumption information is smaller than the standard energy consumption information, a fault prompt is sent.
The beneficial effects are that: in the energy storage management technology, if a control unit on a battery pack and each power consumption component related in an operation parameter acquisition module fail, normal operation of the battery pack is directly affected, in the prior art, whether each power consumption component fails is generally judged by a software program configured in a background management subsystem, whether each power consumption component fails is monitored by software, if each power consumption component transmits corresponding acquisition information to the background management subsystem, the corresponding code of each power consumption component is synchronously transmitted, if the software monitors that the acquisition information and the corresponding code are not received, the fault of one power consumption component is judged, but only in the single fault monitoring mode, the defects are that: if the software has loopholes or other problems, the software cannot be monitored and faults cannot be found in time, so the improvement of the invention is as follows: the energy consumption acquisition module is arranged at the acquisition unit, the real-time energy consumption information of each power consumption component related to the control unit and the operation parameter acquisition module is acquired through the energy consumption acquisition module, the acquired real-time energy consumption information is compared with the standard energy consumption information through the comparison unit, if the real-time energy consumption information is smaller than the standard energy consumption information, a fault prompt is sent out, and therefore whether the current power consumption component has faults or not is reflected through the acquisition of the real-time energy consumption information of each power consumption component.
The preferred implementation mode of the invention is that the storage unit is also used for storing the reference range value of each item of information, the comparison unit is also used for comparing each item of information acquired in real time with the stored reference range value of each item of information, if the item of information acquired in real time is not in the reference range value, the current real-time energy consumption information and standard energy consumption information of the power utilization component used by the item of information are further compared, if the real-time energy consumption information accords with the standard energy consumption information, the operation parameters are judged to be abnormal, and if the real-time energy consumption information is smaller than the standard energy consumption information, the abnormal prompt is sent.
The beneficial effects are that: when a certain item of information collected in real time is not in a reference range value, two situations may exist, one is that abnormality occurs in the battery pack, such as that the power of a certain battery cell is too high or too low, or that the temperature of a certain battery cell is too high, or that the gas concentration is too high, and the other is that the used electric components are collected and have faults, in order to further accurately judge what the situation is, the current real-time energy consumption information and the standard energy consumption information of the used electric components are further compared through the comparison unit, if the real-time energy consumption information accords with the standard energy consumption information, the operation parameters are judged to be abnormal, if the real-time energy consumption information is smaller than the standard energy consumption information, an abnormality prompt is sent, and therefore management staff is prompted that the abnormality occurs in the battery pack. Through this scheme, can more accurate efficient judgement battery package in abnormal conditions.
The user terminal comprises a management user terminal and a maintenance user terminal, wherein the management user terminal and the maintenance user terminal comprise a fault picture uploading module and a fault position marking module.
The beneficial effects are that: the management personnel use the management user terminal, can upload the picture and the number of the fault battery pack through the fault picture uploading module, and mark the maintenance position on the picture, so that before the maintenance personnel maintain, the maintenance user terminal can check and know which battery pack is, and where the part needing to be maintained is, corresponding accessories and tools are prepared in advance, after the maintenance personnel maintain, if the maintenance position is increased or changed, the maintained position can be newly increased or changed on the picture after uploading the picture of the fault battery pack through the fault position marking module, and the background management subsystem records based on the maintenance position, so that the record of maintenance information is more accurate, and the operation and maintenance statistical analysis is also more accurate in the later stage.
The invention is characterized in that the background management subsystem further comprises an operation and maintenance unit, wherein the operation and maintenance unit is used for counting the maintenance period, maintenance record, management personnel information and maintenance personnel information of the battery pack.
The beneficial effects are that: through operation and maintenance unit, statistics battery package's maintenance cycle, maintenance record, managers information and maintenance personnel information for battery package's maintenance is more timely, and management is more efficient.
The preferred embodiment of the invention is that the management user terminal is used for receiving and displaying the fault prompt information and the abnormality prompt information.
The beneficial effects are that: through the management user terminal, fault prompt information and abnormal prompt information are received and displayed, and management personnel can more conveniently and timely know the operation faults or the abnormality of the battery pack at any time and any place, so that countermeasures can be timely made.
Another aspect of the present invention is directed to a method for energy storage management, including:
the operation parameter acquisition module acquires various information inside the battery pack;
the processing unit processes all the acquired information;
the analysis unit analyzes the processed information and forms an analysis result and a control instruction;
the report generating unit generates an analysis report according to the analysis result and pushes the analysis report to the user terminal;
The storage unit stores the processed information, analysis results and analysis reports;
and the control unit of the battery pack controls the operation of the battery pack according to the control instruction.
By the method of the invention: forming feedback control based on all the collected information, and controlling the operation of the battery pack more reasonably and efficiently; the management data related to the battery pack can be conveniently and effectively analyzed and efficiently inquired; and the analysis report is more convenient to review, and various management or control data are more visual to display and decision is facilitated through the form of the analysis report.
The invention is characterized in that the invention also comprises the following contents:
The energy consumption acquisition module acquires real-time energy consumption information of each power utilization component related to the control unit and the operation parameter acquisition module, and transmits the real-time energy consumption information to the background management subsystem;
The comparison unit compares the acquired real-time energy consumption information with the standard energy consumption information, and if the real-time energy consumption information is smaller than the standard energy consumption information, a fault prompt is sent out.
The real-time energy consumption information of each power consumption component is collected to reflect whether the current power consumption component has faults or not, so that the fault judgment of each power consumption component is more accurate and timely.
The invention is characterized in that the invention also comprises the following contents:
The comparison unit compares all information acquired in real time with stored reference range values of all information, if some information acquired in real time is not in the reference range values, current real-time energy consumption information and standard energy consumption information of the power consumption components used by the certain information are further compared, if the real-time energy consumption information accords with the standard energy consumption information, the operation parameters are judged to be abnormal, and if the real-time energy consumption information is smaller than the standard energy consumption information, an abnormality prompt is sent.
The beneficial effects are that: the abnormal conditions in the battery pack can be accurately and efficiently judged whether the abnormal conditions belong to the abnormal conditions of the power utilization components or the abnormal conditions such as thermal runaway or unbalanced electric energy and the like in the battery pack.
Drawings
FIG. 1 is a schematic architecture diagram of an energy storage management system of the present invention;
FIG. 2 is a schematic diagram of a fire fighting device with a battery pack used in the energy storage management system of the present invention;
FIG. 3 is a schematic diagram of the mounting structure of a smoke sensor and a fire-fighting bracket in a fire-fighting device with a battery pack employed in the energy storage management system of the present invention;
FIG. 4 is a schematic diagram of an installation structure of a standby gas-liquid two-phase nozzle in a fire fighting device with a battery pack used in an energy storage management system of the invention;
fig. 5 is a partial enlarged view of fig. 4.
Detailed Description
The following description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings, and it should be understood that the preferred embodiments described below are for illustration only and are not intended to limit the scope of the present invention.
The invention is further described in detail below with reference to the preferred embodiments:
As shown in fig. 1: the energy storage management system disclosed by the embodiment comprises an energy storage subsystem, a background management subsystem and a user terminal. The background management subsystem comprises a processing unit, an analysis unit, a storage unit, a report generation unit, a comparison unit, an operation and maintenance unit and a display unit. The user terminals include a management user terminal and a maintenance user terminal.
The energy storage subsystem comprises an energy storage container, a plurality of battery packs are arranged in the energy storage container, each battery pack comprises a battery pack box body and a plurality of battery core modules which are arranged side by side and are positioned in the battery pack box body, each battery core module comprises a plurality of battery cores which are arranged in a row and are fixed through end plates, and a control unit, an acquisition unit, a fire-fighting unit and a temperature control unit are arranged on the battery pack.
The acquisition unit comprises an operation parameter acquisition module and an energy consumption acquisition module, wherein the operation parameter acquisition module is used for acquiring various information in the battery pack, and the various information comprises, but is not limited to, temperature information, smoke concentration information, gas composition information and power information of a battery cell in the battery pack.
The storage unit stores reference range values of various items of information and standard energy consumption information of various electric components related to the control unit and the operation parameter acquisition module on the battery pack, the processing unit is used for processing the acquired various items of information, such as converting analog signals into digital signals, the analysis unit is used for analyzing the processed various items of information and forming analysis results and control instructions, the analysis comprises the steps of comparing the acquired various items of data with the stored reference range values of the various items of information, generating the control instructions based on the comparison results, and counting the various items of data acquired in a period of time to form analysis results, the report generation unit is used for generating analysis reports according to the analysis results, and the management user terminal is used for checking the analysis reports according to the granted permission.
The control unit is used for controlling the operation of the battery pack according to the control instruction, in this embodiment, the control of the operation of the battery pack includes coordinating and controlling the energy storage and the power supply of each electric core based on the collected power information of each electric core in the battery pack so as to realize the power balance of each electric core, controlling the temperature control unit to cool the inside of the battery pack according to the collected temperature information, and controlling the fire control unit to perform multi-stage early warning and multi-stage fire extinguishing according to the collected temperature information, gas concentration information and gas composition information.
In this embodiment, each item of information, analysis result and analysis report collected by the collection unit are stored in the storage unit.
The energy consumption acquisition module is used for acquiring real-time energy consumption information of each power consumption component related to the control unit and the operation parameter acquisition module and transmitting the real-time energy consumption information to the background management subsystem, and the comparison unit is used for comparing the acquired real-time energy consumption information with standard energy consumption information, and if the real-time energy consumption information is smaller than the standard energy consumption information, a fault prompt is sent.
The comparison unit is also used for comparing all information acquired in real time with stored reference range values of all information, if some information acquired in real time is not in the reference range values, the current real-time energy consumption information and standard energy consumption information of the power consumption components used by the certain information are further compared, if the real-time energy consumption information accords with the standard energy consumption information, the operating parameters are judged to be abnormal, a parameter adjusting control instruction is sent to the control unit of the battery pack, and if the real-time energy consumption information is smaller than the standard energy consumption information, an abnormality prompt is sent.
In this embodiment, both the fault prompt information and the abnormality prompt information are pushed and displayed by the management user terminal, so that the management personnel can conveniently know the related abnormality information at any time and any place, and make a decision in time.
In this embodiment, the management user terminal and the maintenance user terminal each include a fault picture uploading module and a fault location marking module, the management user terminal may upload the pictures and numbers of the fault battery packs through the fault picture uploading module, mark the fault location on the pictures through the fault location marking module, and transmit the fault pictures marked with the fault location to the maintenance user terminal, before maintenance, the maintenance user terminal may check which battery pack is faulty and the location to be maintained, prepare corresponding accessories and tools in advance, after maintenance, if the maintenance location is increased or changed, the maintenance user terminal may newly add or change the maintained location on the pictures after uploading the pictures of the fault battery packs, and the background management subsystem records based on the final maintenance location, so that the record of the maintenance information is more accurate, and the post-operation and maintenance statistical analysis is also more accurate
In this embodiment, the operation and maintenance unit is configured to count a maintenance period, a maintenance record, manager information, and maintenance personnel information of the battery pack, so as to implement traceable management on operation and maintenance of the battery pack.
The embodiment also discloses an energy storage management method, which comprises the following steps:
the operation parameter acquisition module acquires various information inside the battery pack;
the processing unit processes all the acquired information;
the analysis unit analyzes the processed information and forms an analysis result and a control instruction;
the report generating unit generates an analysis report according to the analysis result and pushes the analysis report to the user terminal;
The storage unit stores the processed information, analysis results and analysis reports;
and the control unit of the battery pack controls the operation of the battery pack according to the control instruction.
The energy consumption acquisition module acquires real-time energy consumption information of each power utilization component related to the control unit and the operation parameter acquisition module, and transmits the real-time energy consumption information to the background management subsystem; the comparison unit compares the acquired real-time energy consumption information with the standard energy consumption information, and if the real-time energy consumption information is smaller than the standard energy consumption information, a fault prompt is sent out.
The comparison unit compares all information acquired in real time with stored reference range values of all information, if some information acquired in real time is not in the reference range values, current real-time energy consumption information and standard energy consumption information of the power consumption components used by the certain information are further compared, if the real-time energy consumption information accords with the standard energy consumption information, the operation parameters are judged to be abnormal, and if the real-time energy consumption information is smaller than the standard energy consumption information, an abnormality prompt is sent.
The embodiment also discloses a fire fighting device applied to the battery pack of the energy storage management system, as shown in figures 2-5.
The reference numerals in fig. 2-5 include: the battery pack box 501, the gas-liquid two-phase sprayer 502, the explosion-proof pressure release valve 503, the aerosol fire extinguisher 504, the smoke sensor 505, the support 5051, the fire-fighting bracket 506, the hollowed 5061, the strip-shaped hole 5062, the second connecting column 5063, the connecting bracket 507, the first connecting column 5071, the bolt 5072, the battery end plate 508 and the through hole 5081.
As shown in fig. 1 and 2: the embodiment discloses a fire fighting device with a battery pack, which comprises an aerosol fire extinguisher 504, a gas-liquid two-phase spray head 502, a smoke sensor 505, an explosion-proof pressure release valve 503, a fire fighting bracket 506, a connecting bracket 507, a battery core end plate 508, a guide groove 509 and a first electromagnet 5091;
The standby gas-liquid two-phase spray head 601, the mounting seat 602, the guide rail 603, the mounting plate 604, the sliding block 605, the second electromagnet 606 and the magnet 607.
In this embodiment, the fire protection device of the battery pack includes an aerosol fire extinguisher 504, a smoke sensor 505, a fire protection bracket 506, a gas-liquid two-phase nozzle 502 and an explosion-proof pressure release valve 503, wherein the aerosol fire extinguisher 504, the smoke sensor 505, the fire protection bracket 506, the connection bracket 507 and a battery end plate 508 are all arranged in the battery pack box 501, the gas-liquid two-phase nozzle 502 and the explosion-proof pressure release valve 503 are all arranged on the battery pack box 501, the nozzle of the gas-liquid two-phase nozzle 502 faces the inner side of the battery box, and the gas-liquid two-phase nozzle 502 is positioned right above the explosion-proof pressure release valve 503, one end of the part of the gas-liquid two-phase nozzle 502, which is positioned at the outer side of the battery pack box 501, is connected with a gas pipeline, and the other end is connected with a liquid pipeline, and valves which can be automatically opened or closed by the control of a controller are respectively arranged on the gas pipeline and the liquid pipeline.
Specifically, the smoke sensor 505 is detachably mounted on the fire-fighting bracket 506, in this embodiment, a plurality of supporting legs 5051 are disposed on the periphery of the smoke sensor 505, each supporting leg 5051 is provided with a mounting hole, a second connecting column 5063 is disposed at a position corresponding to the mounting hole on the fire-fighting bracket 506, and quick-dismantling and quick-mounting of the smoke sensor 505 is realized by mounting Kong Karu the second connecting column 5063.
In this embodiment, the fire-fighting bracket 506 is detachably mounted on the battery end plate 508, and specifically is connected through a connection bracket 507: in this embodiment, two groups of connecting brackets are respectively arranged on two sides of the upper portion of the fire-fighting bracket, the connecting brackets 507 are in an L shape, angle steel can be adopted, a first threaded hole is formed in a horizontal support leg 5051 of the connecting brackets 507, a second threaded hole is formed in the upper end face of the battery core end plate 508, bolts 5072 are connected in the first threaded hole and the second threaded hole in a threaded manner, a horizontal first connecting column 5071 is arranged on a vertical support leg 5051 of the connecting brackets 507, and a strip-shaped hole 5062 which is clamped on the first connecting column 5071 is formed in the upper portion of the fire-fighting bracket 506.
In this embodiment, the smoke sensor 505 and the explosion-proof pressure release valve 503 are close to each other and are opposite to each other, the fire-fighting bracket 506 is located at the smoke sensor 505 and the aerosol fire extinguisher 504, the electric core end plate 508 is provided with a through hole 5081 which can be opposite to the position of the hollow 5061, and the nozzle of the gas-liquid two-phase nozzle 502 is opposite to the through hole 5081 and the hollow 5061 of the fire-fighting bracket 506.
When the battery pack is in a normal working state, gas in the battery pack box body 501 flows to the outside through the explosion-proof pressure release valve 503, and the smoke sensor 505 is close to the explosion-proof pressure release valve 503 and faces the explosion-proof pressure release valve 503, so that the smoke sensor 505 is just on a flow path of the gas in the battery pack box body 501 flowing to the explosion-proof pressure release valve 503, and compared with other positions in the battery pack box body 501, the gas has certain fluidity, so that the real-time detection of the smoke sensor 505 can be ensured to be more reliable and stable, and the condition of the concentration and the components of the gas in the battery pack box body 501 can be integrally reflected; when the abnormality occurs in the battery pack case 501, the gas increases sharply, which results in a large amount of gas leaking out through the explosion-proof pressure release valve 503, in this process, since the smoke sensor 505 is close to the explosion-proof pressure release valve 503 and is designed to face the explosion-proof pressure release valve 503, the increase of the gas concentration and the change of the gas composition can be detected in time.
The fire-fighting bracket 506 is positioned at the positions of the smoke sensor 505 and the aerosol fire extinguisher 504 and is provided with the through holes 5081 corresponding to the positions of the hollowed-out parts 5061 on the battery cell end plate 508, so that the weight of the whole fire-fighting bracket 506 and the battery cell end plate 508 is reduced, and the transportation, the installation and the disassembly are more convenient; on the other hand, when the inside of the battery pack box 501 is in a normal state, the position of the whole fire-fighting bracket 506 is in a transverse direction, so that the hollow 5061 is not opposite to the through hole 5081 or the position of the fire-fighting bracket 506 is opposite to the through hole 5081, so that the normal detection of the smoke sensor 505 is not affected, excessive exposure of the inside of the electric core is not caused, dust prevention and waterproof effects are affected, when the inside of the electric core is abnormal, such as thermal runaway, the internal gas is rapidly increased, a large amount of gas flows to the through hole 5081 at the position of the electric core end plate 508 through the inside of the electric core, and then flows to the hollow 5061 of the fire-fighting bracket 506 through the through hole 5081, and then the fire-fighting bracket 506 is matched with the first connecting column 5071 of the connecting bracket 507 through the strip-shaped hole 5062, and the floating type connecting mode with adjustable transverse position is adopted, so that a large amount of rapidly increased gas can force the whole fire-fighting bracket 506 to generate trace transverse movement, the hollow 5061 of the fire-fighting bracket 506 is enabled to be directly opposite to the through hole 5081 of the electric core end plate 508, the pressure relief valve is enabled to be larger, the pressure of the inside of each electric core is enabled to be in a large enough, the inside of the electric core is enabled to be in comparison with the smoke sensor 505, the pressure sensor is enabled to be directly connected with the electric core plate, and the pressure release valve is enabled to be directly, and the pressure release valve is enabled to be high, and the pressure release valve is enabled to be capable to be directly to be capable of detecting the pressure and has a high pressure release and has a high pressure and high pressure.
In this embodiment, be equipped with the third spliced pole the lateral surface of electricity core end plate, open the mounting hole that has the bar in the position that corresponds the third spliced pole on the fire control support, the fire control support passes through in the mounting hole joint third spliced pole to also set up a plurality of stabilizer blades in aerosol fire extinguisher's periphery, all open the mounting hole on every stabilizer blade, the tip of mounting hole joint third spliced pole when the installation. This kind of design of this embodiment not only plays the effect of further supporting to the fire control support through the third spliced pole, the mounting hole of bar and the cooperation of third spliced pole moreover, when having a large amount of gaseous circulation to fire control support department, make the fire control support can the sideslip expose the via hole of electric core end plate, and can not make the fire control support fixed die, and the design of the mounting hole of bar hole and bar, more stable when can guaranteeing the fire control support sideslip, only connect smoke transducer on the fire control support, it has light in weight, small characteristics, can not cause the influence to the position fine setting of fire control support.
As shown in fig. 2, this embodiment also discloses a fire protection system of a battery pack, including the fire protection device of a battery pack as described above, further including a temperature sensor, a VOC detector and a controller disposed outside the battery pack, where the controller is configured to control early warning or start a multi-stage fire extinguishing mode to extinguish a fire and cool according to detection signals of the smoke sensor, the temperature sensor and the VOC detector.
In this embodiment, the early warning means that when the VOC detector detects that the electrolyte leaks and no open fire is generated, and the temperature of the battery core does not exceed the normal value, the warning device sends warning information to remind a worker to timely clean the leaked electrolyte and repair or replace the battery core or the electrical component in the battery pack, the multi-stage fire extinguishing mode means that when the temperature sensor detects that the temperature exceeds the normal value and the smoke concentration sensor detects that the gas component is abnormal and the concentration exceeds the normal value, the open fire is generated at this time, the aerosol fire extinguisher is started to extinguish the fire, and when the temperature is detected to reach the warning value and the concentration also reaches the warning value, the fire is stopped to spread, only one fire extinguishing mode cannot be controlled well, so that the secondary fire extinguishing is started, namely the gas-liquid two-phase spray head is automatically controlled to be started to extinguish the fire further.
The embodiment also discloses a fire-fighting method of the battery pack, which comprises the following steps: under normal working state of the battery pack or when the gas in the battery pack is increased, a large amount of gas is instantaneously discharged through the explosion-proof pressure relief valve, gas components and smoke concentration signals are sensed through a smoke sensor opposite to the explosion-proof pressure relief valve, and further, the method detects temperature signals, gas components and concentration signals and VOC leakage conditions in real time through a temperature sensor, a smoke sensor and a VOC detector respectively, and a controller controls early warning or starts a multi-stage fire extinguishing mode to extinguish fire and cool down according to the temperature signals, the gas components and smoke concentration signals and the VOC leakage conditions.
In this embodiment, the fire protection device of the battery pack further discloses a connection mode between the smoke sensor and the fire protection bracket 506, in this embodiment, two guide grooves 509 along the vertical direction are provided on two sides of the fire protection bracket, which are located at the hollow 5061, the cross section of the guide groove 509 is dovetail-shaped, the lower part of the guide groove extends downwards beyond the hollow 5061, a first electromagnet 5091 is provided on the bottom of the guide groove, which is located at a position opposite to the explosion-proof pressure release valve, two sliding blocks (not shown in the figure) which are in sliding fit with the guide groove are provided on the inner side surface of the smoke sensor, metal sheets capable of being absorbed by the first electromagnet 5091 are provided on the bottom of the sliding blocks, and the on-off of the first electromagnet 5091 is controlled by a controller arranged in the battery pack.
When the battery pack works normally, the electromagnet is electrified, so that the smoke sensor is adsorbed, the smoke sensor faces the explosion-proof pressure release valve, a large amount of gas is generated in the battery pack, and the smoke sensor timely detects that the smoke concentration is increased, and simultaneously, the pressure of the large amount of gas is released through the explosion-proof pressure release valve. If after the explosion-proof pressure release valve and the outside of the battery pack form a free gas channel, the smoke sensor is still in a right position with the explosion-proof pressure release valve, and the smoke concentration at the position is lower than the smoke concentration at other positions of the battery pack due to the rapid circulation of gas at the explosion-proof pressure release valve, so that the smoke concentration detected by the smoke sensor is inaccurate.
The embodiment further discloses fire control early warning method of battery package, still includes smoke transducer position adjustment step, and after explosion-proof relief valve was released the pressure, the electro-magnet outage was controlled to the controller to make smoke transducer slide to the position that is close to battery package bottom along the guide way under self gravity effect, thereby no longer just right with explosion-proof relief valve.
In this embodiment, the device further includes a standby gas-liquid two-phase spray head 601, a via hole is formed on the battery box 501, the standby gas-liquid two-phase spray head 601 horizontally passes through the via hole, one end of a nozzle of the standby gas-liquid two-phase spray head faces the inside of the battery box 501, a mounting seat 602 is provided outside the battery box 501, a guide rail 603 is provided on the upper portion of the mounting seat 602, a mounting plate 604 is provided at one end of the standby gas-liquid two-phase spray head 601 far away from the nozzle, sliders 605 are respectively provided at two sides of the lower portion of the mounting plate 604, the sliders 605 are in sliding fit with the guide rail 603, a second electromagnet 606 is provided at an end of the mounting seat 602 near the battery box 501, which is provided with a magnet 607 capable of being adsorbed or repelled by the second electromagnet 606, and the polarity of the second electromagnet 606 is controlled by a controller according to the temperature collected in the battery box 501 and the temperature collected in the energy storage container.
The use scene and principle of this scheme lie in: in the electrochemical energy storage technology, a battery pack is a basic energy storage unit and is formed by installing a plurality of groups of battery modules inside a battery box, each group of battery modules comprises a plurality of battery cores which are arranged in a row, a temperature sensor is arranged on each battery core, the temperature inside the battery box is measured by the highest value of the temperature collected in each battery core, the plurality of battery packs form an energy storage container, the temperatures outside the battery box and inside the shell of the energy storage container are collected through the temperature sensors inside the energy storage container, and in addition, smoke sensors are also arranged inside and outside the battery box.
Description: in the invention, in a normal initial state, the second electromagnet is electrified to enable the polarity of the second electromagnet to be different from that of the magnet, so that the magnet is adsorbed, a nozzle of the standby gas-liquid two-phase spray head faces the inside of the battery box, the standby gas-liquid two-phase spray head is always connected with a fire-fighting pipeline, and a valve is arranged on the fire-fighting pipeline.
The invention is provided with the standby gas-liquid two-phase spray head, and has the following advantages: when the temperature inside a certain battery box is too high and the gas concentration is too high and exceeds the warning value to approach the dangerous value, the controller can control the valve on the fire-fighting pipeline to be opened at the moment, so that the standby gas-liquid two-phase spray head is started to extinguish the fire inside the battery box.
When the temperature sensor in the energy storage container collects the temperature in the whole energy storage container to be too high, the smoke sensor in the energy storage container collects smoke concentration to be too high, the fact that open fire is generated is required to extinguish fire, and when the temperature and the smoke concentration in the single battery box are not close to dangerous values, the controller can control the second electromagnet to be electrified with reverse current, so that the polarities of the second electromagnet and the magnets are the same, and the second electromagnet repels each other, the sliding blocks positioned on two sides of the lower portion of the mounting plate slide along the guide rail under the repulsive force effect, so that the standby gas-liquid two-phase spray head is driven to gradually withdraw from the through hole of the battery box until the nozzle of the gas-liquid two-phase spray head is completely positioned between the outside of the battery box and the shell of the energy storage container, then the controller controls the valve to be opened, the standby gas-liquid two-phase spray head is started to extinguish fire, meanwhile, after the standby gas-liquid two-phase spray head withdraws from the through hole, the battery box and the inner space of the energy storage container are communicated, so that the internal gas flow inside the battery box or the inner space of the energy storage container is better, and the explosion danger caused by mass aggregation of gas in the internal gas flow of the battery box or the gas flow difference inside the energy storage container is avoided, and the design has more outstanding technical effects.
The preferred embodiments of the present application have been described in detail with reference to the accompanying drawings, in which typical known structures and common general knowledge are not described in any way, and those skilled in the art can complete and practice the technical scheme of the present application with their own capabilities in light of the present disclosure, and some typical known structures, known methods or common general knowledge should not be taken as an obstacle for the practice of the present application by those of ordinary skill in the art.
The protection scope of the present application is subject to the content of the claims, and the content of the application, the detailed description and the drawings of the specification are used for explaining the claims.
Several modifications can be made to the embodiments of the present application within the technical concept of the present application, and the modified embodiments should be considered as being within the scope of the present application.
Claims (7)
1. The energy storage management system is characterized by comprising an energy storage subsystem, a background management subsystem and a user terminal, wherein the energy storage subsystem comprises a battery pack, a control unit and an acquisition unit, the control unit is arranged on the battery pack, the acquisition unit comprises an operation parameter acquisition module and is used for acquiring various information in the battery pack, the background management subsystem comprises a processing unit, an analysis unit, a storage unit and a report generation unit, the processing unit is used for processing the acquired various information, the analysis unit is used for analyzing the processed various information and forming an analysis result and a control instruction, the report generation unit is used for generating an analysis report according to the analysis result, the storage unit is used for storing the processed various information, the analysis result and the analysis report, the control unit is used for controlling the operation of the battery pack according to the control instruction, the user terminal checks the analysis report according to the granted authority, the energy storage subsystem comprises an energy storage container, a plurality of battery packs are arranged in the energy storage container, a fire fighting device of the battery packs comprises an aerosol fire extinguisher, a smoke sensor, a fire fighting bracket, a gas-liquid two-phase spray head and an explosion-proof pressure relief valve, the aerosol fire extinguisher, the smoke sensor, the fire fighting bracket and a battery cell end plate are all arranged in a battery pack box body, the gas-liquid two-phase spray head and the explosion-proof pressure relief valve are all arranged on the battery pack box body, the smoke sensor is detachably arranged on the fire fighting bracket, the smoke sensor and the explosion-proof pressure relief valve are close to each other and are just opposite to each other, when the battery pack is in a normal working state, gas in the battery pack box body flows to the outside through the explosion-proof pressure relief valve, the smoke sensor is just positioned on a flow path of the gas in the battery pack box body flowing to the explosion-proof pressure release valve, when the abnormality occurs in the battery pack box body, the gas is increased sharply, so that a large amount of gas leaks out through the explosion-proof pressure release valve, and in the process, the increase of the gas concentration and the change of the gas composition can be detected in time;
The fire-fighting bracket is positioned at the positions of the smoke sensor and the aerosol fire extinguisher and is hollow, a through hole which can be opposite to the position of the hollow position is formed in the end plate of the battery cell, and the nozzle of the gas-liquid two-phase spray head is opposite to the through hole and the hollow position of the fire-fighting bracket;
the fire-fighting support is detachably arranged on the battery cell end plate and is connected with the battery cell end plate specifically through a connecting support, two groups of connecting supports are respectively arranged on two sides of the upper portion of the fire-fighting support, the connecting supports are L-shaped, a first threaded hole is formed in each horizontal supporting leg of each connecting support, a second threaded hole is formed in the upper end face of the battery cell end plate, bolts are connected in the first threaded holes and the second threaded holes in a threaded mode, a horizontal first connecting column is arranged on each vertical supporting leg of each connecting support, and strip-shaped holes clamped on the first connecting column are formed in the upper portion of each fire-fighting support;
When the inside of the battery pack box body is in a normal state, the hollow part is not opposite to the through hole or the hollow part is only partially opposite to the through hole due to the position of the whole fire-fighting support, when the inside of the battery cell is abnormal, internal gas is rapidly increased, and a large amount of gas flows to the through hole at the end plate of the battery cell through the inside of the battery cell and then flows to the hollow part of the fire-fighting support through the through hole, because the fire-fighting support is matched with the first connecting column of the connecting support through the strip-shaped hole, the fire-fighting support belongs to a floating type connecting mode with adjustable transverse position, a large amount of rapidly increased gas can force the whole fire-fighting support to generate trace transverse movement, so that the dead area of the hollow part of the fire-fighting support and the through hole of the end plate of the battery cell is larger, and a direct gas flow channel is formed between the inside of each battery cell and the smoke sensor and the explosion-proof pressure release valve.
2. The energy storage management system of claim 1, wherein the information collected by the collection unit includes temperature information, smoke concentration information, gas composition information, and power information of the cells in the battery pack.
3. The energy storage management system according to claim 1, wherein the storage unit stores standard energy consumption information of each of the electrical components involved in the control unit and the operation parameter acquisition module on the battery pack, the acquisition unit further comprises an energy consumption acquisition module, the energy consumption acquisition module is further configured to acquire real-time energy consumption information of each of the electrical components involved in the control unit and the operation parameter acquisition module, and transmit the real-time energy consumption information to the background management subsystem, and the background management subsystem further comprises a comparison unit, wherein the comparison unit is configured to compare the acquired real-time energy consumption information with the standard energy consumption information, and if the real-time energy consumption information is smaller than the standard energy consumption information, a fault prompt is sent.
4. The energy storage management system according to claim 3, wherein the storage unit further stores a reference range value of each item of information, the comparison unit is further configured to compare each item of information collected in real time with the stored reference range value of each item of information, if some item of information collected in real time is not within the reference range value, further compare current real-time energy consumption information of a power consumption component used by the some item of information with standard energy consumption information, if the real-time energy consumption information accords with the standard energy consumption information, determine that the operation parameter is abnormal, and if the real-time energy consumption information is smaller than the standard energy consumption information, send an abnormality prompt.
5. The energy storage management system of claim 4, wherein the user terminals comprise a management user terminal and a maintenance user terminal, each comprising a fault picture upload module and a fault location marking module.
6. The energy storage management system of claim 5, wherein the background management subsystem further comprises an operation and maintenance unit for counting maintenance cycles, maintenance records, manager information, and maintenance personnel information for the battery pack.
7. The energy storage management system of claim 5, wherein the management user terminal is configured to receive and display fault notification information and anomaly notification information.
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