CN113890183B - Lithium battery energy storage management system and method thereof - Google Patents
Lithium battery energy storage management system and method thereof Download PDFInfo
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- CN113890183B CN113890183B CN202110930155.5A CN202110930155A CN113890183B CN 113890183 B CN113890183 B CN 113890183B CN 202110930155 A CN202110930155 A CN 202110930155A CN 113890183 B CN113890183 B CN 113890183B
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 192
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 238000004146 energy storage Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000003203 everyday effect Effects 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims description 41
- 238000012545 processing Methods 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 34
- 238000007405 data analysis Methods 0.000 claims description 13
- 238000004458 analytical method Methods 0.000 claims description 11
- 238000011156 evaluation Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000012795 verification Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a lithium battery energy storage management system and a method thereof, which relate to the technical field of lithium battery management and comprise a cloud service platform, an EMS energy management module, a BMS battery management module, a converter, a fire control management module, a temperature control module, a warning module and an intelligent terminal. According to the invention, the lithium battery for fire protection is reserved every day, the lithium battery for fire protection is exchanged every day, and two groups of lithium batteries for fire protection are reserved every day; the position of the lithium battery for fire protection is ensured to be randomly updated every day, the lithium battery for fire protection also participates in normal charge and discharge work, the running state of the lithium battery for fire protection can be mastered in time, and the situation that the lithium battery for fire protection is full of or is in a non-electric state is avoided; the design space distance of the fire-fighting standby lithium battery ensures that the lithium battery is damaged in any direction, and at least one group of fire-fighting standby lithium batteries are available.
Description
Technical Field
The invention relates to the technical field of lithium battery management, in particular to a lithium battery energy storage management system and a method thereof.
Background
Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries; the lithium metal battery is a battery using manganese dioxide as a positive electrode material, lithium metal or alloy metal thereof as a negative electrode material, and a nonaqueous electrolyte solution; the lithium ion battery is a battery using lithium alloy metal oxide as a positive electrode material, graphite as a negative electrode material, and nonaqueous electrolyte. Large energy storage systems are an important component of future new energy systems and smart grids, while energy storage batteries are the key to large energy storage systems. The lithium ion battery has the advantages of high energy density, long cycle life, small self-discharge rate, no memory effect, green environmental protection and the like, has wide application prospect in the energy storage field, and is the first choice in the energy storage field.
The existing lithium battery energy storage management system has poor emergency treatment effect on the electricity utilization aspect of the fire-fighting reserve, and the situation that the fire-fighting reserve battery is not powered, damaged or the reserve battery itself is threatened by fire-fighting police frequently occurs.
Disclosure of Invention
The invention aims to provide a lithium battery energy storage management system and a method thereof, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a lithium battery energy storage management system, includes cloud service platform, EMS energy management module, BMS battery management module, converter, fire control management module, temperature control module, lithium battery module, warning module and intelligent terminal, cloud service platform is used for carrying out platform formula control management to lithium battery energy storage management system, EMS energy management module is used for system data acquisition, network monitoring, energy dispatch and network data analysis, BMS battery management module is used for right lithium battery module monitors, aassessment, protection and balanced processing, the converter is used for turning alternating current into direct current, fire control management module is used for managing the system in the emergent power supply allocation of fire control, temperature control module is used for right lithium battery module is carrying out temperature control processing, lithium battery module is used for storing the electric energy to distribute the utilization to the electric energy, warning module is used for carrying out warning processing to the problem that appears in the system, intelligent terminal is arranged in remote control and looks over data and running state in the system, EMS energy management module the temperature control module the lithium battery module the fire control module the energy management module with the energy management module and the energy management module are connected respectively with the energy management module and energy management module the energy management module are all in the energy management module electric communication respectively the energy management module and the energy management module.
Further, the cloud service platform comprises a central processing unit, an information receiving and transmitting unit and a storage unit, wherein the central processing unit is used for analyzing and integrating data, the information receiving and transmitting unit is used for receiving and transmitting information, and the storage unit is used for storing the data.
Further, the storage unit comprises a local memory and a cloud memory.
Further, the EMS energy management module includes a data acquisition unit, a network monitoring unit, an energy scheduling unit and a network data analysis unit, where the data acquisition unit is used to acquire system data and grid data, the network monitoring unit is used to monitor and process the network data, the energy scheduling unit is used to control energy in the micro-grid and maintain the micro-grid power balance, and the network data analysis unit is used to analyze and process the network monitoring data.
Further, the BMS battery management module comprises a battery monitoring unit, a battery evaluation unit, a battery protection unit and a battery balancing unit, wherein the battery monitoring unit is used for monitoring voltage, current, temperature, insulation condition and protection amount information of the battery, the battery evaluation unit can calculate and evaluate the SOC, SOH and accumulated processing electric quantity of the battery according to the voltage and current information, the battery protection unit can be used for protecting the safety of the battery through events such as alarm faults and the like according to the temperature and protection amount information of the battery, and the battery balancing unit executes active balancing control processing according to voltage difference of the detected battery.
Further, the fire control management module comprises a fire control standby battery monitoring unit, a fire control standby battery switching unit and a fire control standby battery positioning unit, wherein the fire control standby battery monitoring unit is used for carrying out monitoring data arrangement on the fire control standby battery, the fire control standby battery switching unit is used for carrying out switching treatment on the fire control standby battery, and the fire control standby battery positioning unit is used for carrying out automatic positioning detection and verification treatment on the fire control standby battery.
Further, the temperature control module comprises a temperature analysis unit and a temperature regulation unit, wherein the temperature analysis unit is used for carrying out temperature analysis processing on the system, and the temperature regulation unit is used for carrying out regulation processing on the temperature of the system.
Further, the lithium battery module comprises a series-parallel connection switching unit and an energy storage allocation unit, wherein the series-parallel connection switching unit is used for carrying out series-parallel connection automatic switching treatment on the lithium battery, and the energy storage allocation unit is used for allocating the energy storage state of the lithium battery.
Further, the intelligent terminal comprises an input unit and a display unit, wherein the input unit is used for inputting data to the system through the intelligent terminal, and the display unit is used for displaying the data in the system.
The invention also provides a use method of the lithium battery energy storage management system, which comprises the following steps:
a) The method comprises the steps that a system is started through an intelligent terminal, a BMS battery management module monitors voltage, current, temperature, insulation condition and protection amount information of a battery, the SOC, SOH and accumulated processing electric quantity of the battery are estimated and calculated according to the voltage and current information of the battery, the safety of the battery is protected through events such as alarm faults according to the temperature and protection amount information of the battery, the voltage difference of the battery is detected, active balance control is executed, system management of the battery is achieved, and battery management data are sent to a cloud service platform; the EMS energy management module performs data acquisition, network monitoring, energy scheduling and network data analysis on the battery and the power grid, realizes internal energy control on the micro power grid, maintains the power balance of the micro power grid, ensures the normal operation of the micro power grid, can charge and store energy in a low-peak period of electricity consumption, discharges electricity in a high-peak period of electricity consumption, reasonably utilizes the stored low-price electric quantity to replace the high-price electric quantity, effectively saves the cost, and transmits the energy management data to the cloud service platform; the temperature control module analyzes, integrates and predicts the temperature of the battery and adjusts the temperature; and sending the temperature control data to a cloud service platform;
b) The cloud service platform analyzes and integrates the data, the fire control management module performs fire control standby management on the lithium batteries, the fire control electricity consumption is different from the peak electricity consumption lithium batteries, the fire control electricity consumption lithium batteries are reserved every day, no special lithium batteries are used, the data are exchanged every day, and two groups of fire control lithium batteries are reserved every day;
establishing a three-dimensional lithium battery model, integrating all lithium batteries in the lithium battery module into a transparent three-dimensional cuboid model, fitting each lithium battery into a point, fitting the points of the lithium batteries into the transparent three-dimensional cuboid model, and taking one vertex of the transparent three-dimensional cuboid model as the original pointThe points establish a three-dimensional coordinate system, and the point coordinates (X i ，Y i ，Z i ) Marking and counting;
the lithium battery point farthest from the origin has a coordinate of (X max ，Y max ，Z max ) The maximum distance between the lithium battery and the origin is L 0 ＝√(X max 2 +Y max 2 +Z max 2 ) The method comprises the steps of carrying out a first treatment on the surface of the The coordinates of the two groups of reserved fire electricity lithium batteries on the same day are respectively as follows: (X) a ，Y a ，Z a )、(X b ，Y b ，Z b ) The method comprises the steps of carrying out a first treatment on the surface of the The coordinates of two groups of reserved lithium batteries for fire protection exchanged on the next day are respectively (X) c ，Y c ，Z c )、(X d ，Y d ，Z d ) The distance between four groups of reserved lithium batteries for fire protection is L respectively 1 、L 2 、L 3 、L 4 、L 5 、L 6 ；
L 1 ＝√{(X a -X b ) 2 +(Y a -Y b ) 2 +(Z a -Z b ) 2 }；
L 2 ＝√{(X c -X d ) 2 +(Y c -Y d ) 2 +(Z c -Z d ) 2 }；
L 3 ＝√{(X a -X c ) 2 +(Y a -Y c ) 2 +(Z a -Z c ) 2 }；
L 4 ＝√{(X a -X d ) 2 +(Y a -Y d ) 2 +(Z a -Z d ) 2 }；
L 5 ＝√{(X b -X c ) 2 +(Y b -Y c ) 2 +(Z b -Z c ) 2 }；
L 6 ＝√{(X b -X d ) 2 +(Y b -Y d ) 2 +(Z b -Z d ) 2 }；
Two groups of two adjacent daysIn the random switching process of the coordinates of the lithium battery for fire protection, satisfactory condition H is needed: 1/2*L 0 ＜L 1 、1/2*L 0 ＜L 2 、1/2*L 0 ＜L 3 、1/2*L 0 ＜L 4 、1/2*L 0 ＜L 5 、1/2*L 0 ＜L 6 ；
Uploading the three-dimensional lithium battery model, the coordinate system and coordinate point data to a cloud service platform;
c) When the cloud service platform analyzes data to display that the fire-fighting standby battery needs to be started, the fire-fighting standby battery is directly started to supply power, when the lithium battery data display electric quantity is insufficient, the lithium battery with sufficient electric quantity is directly switched into the fire-fighting standby battery, the switched fire-fighting standby battery preferentially selects the lithium battery meeting the condition H, when the lithium battery cannot fully meet the condition H, more lithium batteries meeting the condition H are preferentially selected, and battery switching data information and the state meeting the condition H are uploaded to the cloud service platform;
d) The lithium battery module performs energy storage and serial-parallel switching treatment on the lithium battery, when the lithium battery is charged, the lithium battery is adjusted to a serial state, uniform charging can be performed, the lithium battery is adjusted to a parallel state, charging can be performed one by one, when danger or fire emergency occurs, the parallel state is adjusted, and data is uploaded to the cloud service platform;
e) The intelligent terminal can query and set the data in the system through the cloud service platform.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, a cloud service platform, an EMS energy management module, a BMS battery management module, a converter, a fire control management module, a temperature control module, a warning module and an intelligent terminal are arranged, charging and energy storage are carried out in a low electricity peak period, discharging is carried out in a high electricity peak period, emergency electricity standby and fire filling can be carried out, fire electricity consumption and high peak electricity consumption lithium batteries are distinguished, fire electricity consumption lithium batteries are reserved every day, no special lithium battery is used for exchanging every day, and two groups of fire electricity consumption lithium batteries are reserved every day; the lithium battery for fire protection is ensured to be reserved all the time, the position of the lithium battery for fire protection is ensured to be updated randomly every day, the lithium battery for fire protection also participates in normal charge and discharge work, the running state of the lithium battery for fire protection can be mastered in time, and the situation that the lithium battery for fire protection is full of or is in a non-electric state is avoided; the space distance between two groups of lithium batteries for fire protection is ensured to be more than one half of the maximum space distance between any two groups of lithium batteries, and the minimum space distance between two adjacent groups of lithium batteries is more than one half of the maximum space distance between any two groups of lithium batteries; the design space distance of the fire-fighting standby lithium battery ensures that the lithium battery is damaged in any direction, and at least one group of fire-fighting standby lithium batteries can be used; when the electric quantity of the lithium battery for fire protection is insufficient, the lithium battery for fire protection can be directly switched to a lithium battery with sufficient electric quantity;
2. according to the invention, the lithium battery module is arranged, the series-parallel connection of the lithium batteries is switched, the lithium batteries are adjusted to be in a serial connection state during charging, the lithium batteries are uniformly charged and are adjusted to be in a parallel connection state, and the parallel connection states are adjusted to be mutually independent when danger or fire emergency occurs, so that the integral fault caused by damage of a single lithium battery is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall modular connection of the present invention;
in the figure: 1. a cloud service platform; 2. an EMS energy management module; 3. a BMS battery management module; 4. a current transformer; 5. a fire control management module; 6. a temperature control module; 7. a lithium battery module; 8. a warning module; 9. an intelligent terminal; 10. a central processing unit; 11. an information receiving and transmitting unit; 12. a storage unit; 13. a data acquisition unit; 14. a network monitoring unit; 15. an energy scheduling unit; 16. a network data analysis unit; 17. a battery monitoring unit; 18. a battery evaluation unit; 19. a battery protection unit; 20. a battery equalization unit; 21. a fire-fighting standby battery monitoring unit; 22. a fire-fighting standby battery switching unit; 23. a fire-fighting standby battery positioning unit; 24. a temperature analysis unit; 25. a temperature adjusting unit; 26. a series-parallel switching unit; 27. an energy storage allocation unit; 28. an input unit; 29. and a display unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The system comprises a cloud service platform 1, an EMS energy management module 2, a BMS battery management module 3, a converter 4, a fire control management module 5, a temperature control module 6, a lithium battery module 7, an alarm module 8 and an intelligent terminal 9, wherein the cloud service platform 1 is used for carrying out platform type control management on the lithium battery energy management system, the EMS energy management module 2 is used for carrying out system data acquisition, network monitoring, energy scheduling and network data analysis, the BMS battery management module 3 is used for carrying out monitoring, evaluation, protection and balanced processing on the lithium battery module 7, the converter 4 is used for converting alternating current into direct current, the fire control management module 5 is used for managing the system in fire control emergency power supply allocation, the temperature control module 6 is used for carrying out temperature control processing on the lithium battery module 7, the lithium battery module 7 is used for carrying out allocation and utilization on electric energy, the alarm module 8 is used for carrying out alarm processing on problems in the system, the intelligent terminal 9 is used for carrying out remote control and checking on data and running state in the system, and the BMS battery management module 2, the BMS battery management module 3, the EMS battery management module 3, the fire control module 7, the fire control module 8, the fire control module 7, the fire control module 8 and the fire control module 7 are respectively connected with the fire control management module 4, the fire control management module 6, the fire control module and the fire control management module 6.
The cloud service platform 1 comprises a central processing unit 10, an information receiving and transmitting unit 11 and a storage unit 12, wherein the central processing unit 10 is used for analyzing and integrating data, the information receiving and transmitting unit 11 is used for receiving and transmitting information, the storage unit 12 is used for storing data, and the storage unit 12 comprises a local memory and a cloud memory.
The EMS energy management module 2 includes a data acquisition unit 13, a network monitoring unit 14, an energy scheduling unit 15 and a network data analysis unit 16, where the data acquisition unit 13 is used to acquire system data and grid data, the network monitoring unit 14 is used to monitor and process the network data, the energy scheduling unit 15 is used to control energy in the micro-grid to maintain the micro-grid power balance, and the network data analysis unit 16 is used to analyze and process the network monitoring data.
The BMS battery management module 3 includes a battery monitoring unit 17, a battery evaluation unit 18, a battery protection unit 19, and a battery balancing unit 20, wherein the battery monitoring unit 17 is used for monitoring voltage, current, temperature, insulation condition, and protection amount information of the battery, the battery evaluation unit 18 can calculate and evaluate SOC, SOH, and accumulated processing electric quantity of the battery according to the voltage and current information, the battery protection unit 19 can be used for protecting safety of the battery through alarm faults and other events according to the temperature and protection amount information of the battery, and the battery balancing unit 20 performs active balancing control processing according to voltage difference of the detected battery.
The fire control management module 5 includes fire control spare battery monitoring unit 21, fire control spare battery switching unit 22 and fire control spare battery positioning unit 23, fire control spare battery monitoring unit 21 is used for carrying out monitoring data arrangement to fire control spare battery, fire control spare battery switching unit 22 is used for carrying out switching treatment to fire control spare battery, fire control spare battery positioning unit 23 is used for carrying out automatic positioning detection and check-up processing to fire control spare battery.
The temperature control module 6 comprises a temperature analysis unit 24 and a temperature adjustment unit 25, wherein the temperature analysis unit 24 is used for performing temperature analysis processing on the system, and the temperature adjustment unit 25 is used for performing adjustment processing on the temperature of the system.
The lithium battery module 7 comprises a series-parallel connection switching unit 26 and an energy storage allocation unit 27, wherein the series-parallel connection switching unit 26 is used for carrying out series-parallel connection automatic switching treatment on the lithium battery, and the energy storage allocation unit 27 is used for allocating the energy storage state of the lithium battery.
The intelligent terminal 9 comprises an input unit 28 and a display unit 29, the input unit 28 is used for inputting data to the system through the intelligent terminal 9, and the display unit 29 is used for displaying data in the system.
The invention also provides a use method of the lithium battery energy storage management system, which comprises the following steps:
starting a system through the intelligent terminal 9, monitoring voltage, current, temperature, insulation condition and protection amount information of the battery by the BMS battery management module 3, evaluating and calculating SOC, SOH and accumulated processing electric quantity of the battery according to the voltage and current information of the battery, protecting the safety of the battery according to the temperature and protection amount information of the battery through events such as alarm faults, detecting the voltage difference of the battery, executing active balance control, realizing system management of the battery, and sending battery management data to the cloud service platform 1; the EMS energy management module 2 performs data acquisition, network monitoring, energy scheduling and network data analysis on the battery and the power grid, realizes internal energy control on the micro power grid, maintains the power balance of the micro power grid, ensures the normal operation of the micro power grid, can charge and store energy in a low-peak period of electricity consumption, discharges electricity in a high-peak period of electricity consumption, reasonably utilizes the stored low-price electric quantity to replace the high-price electric quantity, effectively saves cost, and transmits energy management data to the cloud service platform 1; the temperature control module 6 analyzes, integrates and predicts the battery temperature and adjusts the temperature; and sending the temperature control data to the cloud service platform 1;
the cloud service platform 1 performs analysis and integration treatment on the data, the fire control management module 5 performs fire control standby management on the lithium batteries, the fire control electricity consumption is different from the peak electricity consumption lithium batteries, the fire control electricity consumption lithium batteries are reserved every day, no special lithium batteries are used, the replacement is performed every day, and two groups of fire control lithium batteries are reserved every day; establishing a three-dimensional lithium battery model, and integrating all lithium batteries in a lithium battery module intoA transparent three-dimensional cuboid model, fit each lithium battery into a point, fit the lithium battery points into the transparent three-dimensional cuboid model, then set up a three-dimensional coordinate system with a vertex of the transparent three-dimensional cuboid model as the origin, coordinate the lithium battery points (X i ，Y i ，Z i ) Marking and counting; the lithium battery point farthest from the origin has a coordinate of (X max ，Y max ，Z max ) The maximum distance between the lithium battery and the origin is L 0 ＝√(X max 2 +Y max 2 +Z max 2 ) The method comprises the steps of carrying out a first treatment on the surface of the The coordinates of the two groups of reserved fire electricity lithium batteries on the same day are respectively as follows: (X) a ，Y a ，Z a )、(X b ，Y b ，Z b ) The method comprises the steps of carrying out a first treatment on the surface of the The coordinates of two groups of reserved lithium batteries for fire protection exchanged on the next day are respectively (X) c ，Y c ，Z c )、(X d ，Y d ，Z d ) The distance between four groups of reserved lithium batteries for fire protection is L respectively 1 、L 2 、L 3 、L 4 、L 5 、L 6 ；
L 1 ＝√{(X a -X b ) 2 +(Y a -Y b ) 2 +(Z a -Z b ) 2 }；
L 2 ＝√{(X c -X d ) 2 +(Y c -Y d ) 2 +(Z c -Z d ) 2 }；
L 3 ＝√{(X a -X c ) 2 +(Y a -Y c ) 2 +(Z a -Z c ) 2 }；
L 4 ＝√{(X a -X d ) 2 +(Y a -Y d ) 2 +(Z a -Z d ) 2 }；
L 5 ＝√{(X b -X c ) 2 +(Y b -Y c ) 2 +(Z b -Z c ) 2 }；
L 6 ＝√{(X b -X d ) 2 +(Y b -Y d ) 2 +(Z b -Z d ) 2 }；
In the random switching process of the coordinates of two groups of lithium batteries for fire protection in two adjacent days, satisfaction condition H is needed: 1/2*L 0 ＜L 1 、1/2*L 0 ＜L 2 、1/2*L 0 ＜L 3 、1/2*L 0 ＜L 4 、1/2*L 0 ＜L 5 、1/2*L 0 ＜L 6 The method comprises the steps of carrying out a first treatment on the surface of the Uploading the three-dimensional lithium battery model, the coordinate system and coordinate point data to a cloud service platform 1;
when the cloud service platform 1 analyzes data and displays that the fire-fighting standby battery needs to be started, the fire-fighting standby battery is directly started to supply power, when the lithium battery data display electric quantity is insufficient, the lithium battery with sufficient electric quantity is directly switched into the fire-fighting standby battery, the switched fire-fighting standby battery preferentially selects the lithium battery meeting the condition H, when the lithium battery cannot fully meet the condition H, more lithium batteries meeting the condition H are preferentially selected, and battery switching data information and the state meeting the condition H are uploaded to the cloud service platform 1; the lithium battery module 7 performs energy storage and serial-parallel switching treatment on the lithium battery, and when the lithium battery is charged, the lithium battery is adjusted to a serial state, uniform charging can be performed, the lithium battery is adjusted to a parallel state, charging can be performed one by one, when danger or fire emergency occurs, the parallel state is adjusted, and data is uploaded to the cloud service platform 1; the intelligent terminal 9 can query and set the data in the system through the cloud service platform 1.
The embodiment specifically solves the problems that the existing lithium battery energy storage management system in the background technology has poor emergency treatment effect on the electricity utilization aspect of the fire-fighting reserve, and the fire-fighting reserve battery is not powered, damaged or threatened by fire-fighting police.
The working principle of the invention is as follows:
referring to the attached drawing 1 of the specification, by arranging a cloud service platform 1, an EMS energy management module 2, a BMS battery management module 3, a converter 4, a fire control management module 5, a temperature control module 6, a lithium battery module 7, a warning module 8 and an intelligent terminal 9, charging and energy storage are carried out in a low electricity peak period, discharging is carried out in a high electricity peak period, emergency electricity standby and fire fighting filling can be carried out, fire fighting electricity is distinguished from high-peak electricity lithium batteries, fire fighting lithium batteries are reserved every day, no special lithium batteries are used, replacement is carried out every day, and two groups of fire fighting lithium batteries are reserved every day; the lithium battery for fire protection is ensured to be reserved all the time, the position of the lithium battery for fire protection is ensured to be updated randomly every day, the lithium battery for fire protection also participates in normal charge and discharge work, the running state of the lithium battery for fire protection can be mastered in time, and the situation that the lithium battery for fire protection is full of or is in a non-electric state is avoided; the space distance between two groups of lithium batteries for fire protection is ensured to be more than one half of the maximum space distance between any two groups of lithium batteries, and the minimum space distance between two adjacent groups of lithium batteries is more than one half of the maximum space distance between any two groups of lithium batteries; the design space distance of the fire-fighting standby lithium battery ensures that the lithium battery is damaged in any direction, and at least one group of fire-fighting standby lithium batteries can be used; when the electric quantity of the lithium battery for fire protection is insufficient, the lithium battery for fire protection can be directly switched to a lithium battery with sufficient electric quantity; and when the lithium batteries are in series-parallel connection switching, the lithium batteries are adjusted to be in a serial connection state, are uniformly charged and are adjusted to be in a parallel connection state, and when danger or fire emergency occurs, the parallel connection states are adjusted to be mutually independent, so that the integral fault caused by damage of the single lithium battery is avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a lithium battery energy storage management system, includes cloud service platform (1), EMS energy management module (2), BMS battery management module (3), converter (4), fire control management module (5), control by temperature change module (6), lithium battery module (7), warning module (8) and intelligent terminal (9), its characterized in that: the cloud service platform (1) is used for carrying out platform control management on a lithium battery energy storage management system, the EMS energy management module (2) is used for carrying out data acquisition, network monitoring, energy scheduling and network data analysis on the system, the BMS battery management module (3) is used for carrying out monitoring, evaluation, protection and balancing processing on the lithium battery module (7), the converter (4) is used for converting alternating current into direct current, the fire control management module (5) is used for managing the system in fire emergency power supply allocation, the temperature control module (6) is used for carrying out temperature control processing on the lithium battery module (7), the lithium battery module (7) is used for carrying out warning processing on problems occurring in the system and carrying out distribution utilization on the electric energy, the warning module (8) is used for carrying out warning processing on the problems occurring in the system, the intelligent terminal (9) is used for remotely controlling and checking data and running states in the system, the EMS energy management module (2), the BMS battery management module (3), the fire control module (5), the temperature control module (6), the lithium battery module (7), the intelligent terminal (8) and the communication platform (2) are respectively connected with the energy management module (8) and the energy management platform (1) The BMS battery management module (3) and the converter (4) are respectively and electrically connected with the lithium battery module (7); the application method of the lithium battery energy storage management system comprises the following steps:
a) Starting a system through an intelligent terminal (9), monitoring voltage, current, temperature, insulation condition and protection amount information of a battery by a BMS battery management module (3), evaluating and calculating SOC, SOH and accumulated processing electric quantity of the battery according to the voltage and current information of the battery, protecting the safety of the battery through alarming fault events according to the temperature and protection amount information of the battery, detecting voltage difference of the battery, executing active balance control, realizing system management of the battery, and sending battery management data to a cloud service platform (1); the EMS energy management module (2) performs data acquisition, network monitoring, energy scheduling and network data analysis on the battery and the power grid, realizes internal energy control on the micro power grid, maintains the power balance of the micro power grid, ensures the normal operation of the micro power grid, performs charging and energy storage in a low electricity consumption peak period, performs discharging in a high electricity consumption peak period, reasonably utilizes the stored low-price electric quantity to replace the high-price electric quantity, effectively saves the cost, and transmits the energy management data to the cloud service platform (1); the temperature control module (6) analyzes, integrates and predicts the temperature of the battery and adjusts the temperature; and sending the temperature control data to the cloud service platform (1);
b) The cloud service platform (1) analyzes and integrates the data, the fire-fighting management module (5) carries out fire-fighting standby management on the lithium batteries, the fire-fighting electricity is distinguished from the peak electricity lithium batteries, the fire-fighting electricity lithium batteries are reserved every day, no special lithium batteries are used, the data are exchanged every day, and two groups of fire-fighting lithium batteries are reserved every day;
establishing a three-dimensional lithium battery model, integrating all lithium batteries in the lithium battery module into a transparent three-dimensional cuboid model, fitting each lithium battery into a point, fitting the points of the lithium batteries into the transparent three-dimensional cuboid model, establishing a three-dimensional coordinate system by taking one vertex of the transparent three-dimensional cuboid model as an origin, and obtaining point coordinates (X i ，Y i ，Z i ) Marking and counting;
the lithium battery point farthest from the origin has a coordinate of (X max ，Y max ，Z max ) The maximum distance between the lithium battery and the origin is L 0 =√（X max ²+Y max ²+Z max Is provided; the coordinates of the two groups of reserved fire electricity lithium batteries on the same day are respectively as follows: (X) a ，Y a ，Z a ）、（X b ，Y b ，Z b ) The method comprises the steps of carrying out a first treatment on the surface of the The coordinates of two groups of reserved lithium batteries for fire protection exchanged on the next day are respectively (X) c ，Y c ，Z c ）、（X d ，Y d ，Z d ) The distance between four groups of reserved lithium batteries for fire protection is L respectively 1 、L 2 、L 3 、L 4 、L 5 、L 6 ；
L 1 =√{（X a -X b ）²+（Y a -Y b ）²+（Z a -Z b ）²}；
L 2 =√{（X c -X d ）²+（Y c -Y d ）²+（Z c -Z d ）²}；
L 3 =√{（X a -X c ）²+（Y a -Y c ）²+（Z a -Z c ）²}；
L 4 =√{（X a -X d ）²+（Y a -Y d ）²+（Z a -Z d ）²}；
L 5 =√{（X b -X c ）²+（Y b -Y c ）²+（Z b -Z c ）²}；
L 6 =√{（X b -X d ）²+（Y b -Y d ）²+（Z b -Z d ）²}；
In the random switching process of the coordinates of two groups of lithium batteries for fire protection in two adjacent days, the condition H needs to be satisfied: 1/2*L 0 ＜L 1 、1/2*L 0 ＜L 2 、1/2*L 0 ＜L 3 、1/2*L 0 ＜L 4 、1/2*L 0 ＜L 5 、1/2*L 0 ＜L 6 ；
Uploading the three-dimensional lithium battery model, the coordinate system and coordinate point data to a cloud service platform (1);
c) When the cloud service platform (1) analyzes data and displays that the fire-fighting standby battery needs to be started, the fire-fighting standby battery is directly started to supply power, when the data of the lithium battery is insufficient in display electric quantity, the lithium battery with sufficient electric quantity is directly switched into the fire-fighting standby battery, the switched fire-fighting standby battery preferentially selects the lithium battery meeting the condition H, when the lithium battery cannot fully meet the condition H, more lithium batteries meeting the condition H are preferentially selected, and battery switching data information and the state meeting the condition H are uploaded to the cloud service platform (1);
d) The lithium battery module (7) performs energy storage and serial-parallel switching treatment on the lithium battery, when in charging, the lithium battery is adjusted to a serial state, uniform charging can be performed, the lithium battery is adjusted to a parallel state, charging can be performed one by one, when danger or fire emergency occurs, the parallel state is adjusted, and data is uploaded to the cloud service platform (1);
e) The intelligent terminal (9) can query and set the data in the system through the cloud service platform (1).
2. The lithium battery energy storage management system of claim 1, wherein: the cloud service platform (1) comprises a central processing unit (10), an information receiving and transmitting unit (11) and a storage unit (12), wherein the central processing unit (10) is used for analyzing and integrating data, the information receiving and transmitting unit (11) is used for receiving and transmitting information, and the storage unit (12) is used for storing the data.
3. The lithium battery energy storage management system of claim 2, wherein: the storage unit (12) includes a local memory and a cloud memory.
4. The lithium battery energy storage management system of claim 1, wherein: the EMS energy management module (2) comprises a data acquisition unit (13), a network monitoring unit (14), an energy scheduling unit (15) and a network data analysis unit (16), wherein the data acquisition unit (13) is used for acquiring system data and power grid data, the network monitoring unit (14) is used for monitoring and processing the network data, the energy scheduling unit (15) is used for controlling energy in a micro-grid to maintain micro-grid power balance, and the network data analysis unit (16) is used for analyzing and processing the network monitoring data.
5. The lithium battery energy storage management system of claim 1, wherein: the BMS battery management module (3) comprises a battery monitoring unit (17), a battery evaluation unit (18), a battery protection unit (19) and a battery balancing unit (20), wherein the battery monitoring unit (17) is used for monitoring voltage, current, temperature, insulation condition and protection amount information of a battery, the battery evaluation unit (18) can calculate and evaluate the SOC, SOH and accumulated processing electric quantity of the battery according to the voltage and current information, the battery protection unit (19) can be used for protecting the safety of the battery through alarming fault events according to the temperature and protection amount information of the battery, and the battery balancing unit (20) can execute active balancing control processing according to voltage difference of the detected battery.
6. The lithium battery energy storage management system of claim 1, wherein: the fire control management module (5) comprises a fire control standby battery monitoring unit (21), a fire control standby battery switching unit (22) and a fire control standby battery positioning unit (23), wherein the fire control standby battery monitoring unit (21) is used for conducting monitoring data arrangement on the fire control standby battery, the fire control standby battery switching unit (22) is used for conducting switching treatment on the fire control standby battery, and the fire control standby battery positioning unit (23) is used for conducting automatic positioning detection and verification treatment on the fire control standby battery.
7. The lithium battery energy storage management system of claim 1, wherein: the temperature control module (6) comprises a temperature analysis unit (24) and a temperature adjustment unit (25), wherein the temperature analysis unit (24) is used for performing temperature analysis processing on the system, and the temperature adjustment unit (25) is used for performing adjustment processing on the temperature of the system.
8. The lithium battery energy storage management system of claim 1, wherein: the lithium battery module (7) comprises a series-parallel connection switching unit (26) and an energy storage allocation unit (27), wherein the series-parallel connection switching unit (26) is used for carrying out series-parallel connection automatic switching treatment on the lithium battery, and the energy storage allocation unit (27) is used for allocating the energy storage state of the lithium battery.
9. The lithium battery energy storage management system of claim 1, wherein: the intelligent terminal (9) comprises an input unit (28) and a display unit (29), wherein the input unit (28) is used for inputting data to the system through the intelligent terminal (9), and the display unit (29) is used for displaying data in the system.
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