CN113890183A - 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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- 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
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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
- H02J13/00006—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
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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
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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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
- H02J7/0047—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]
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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
- H02J7/0047—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]
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- 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
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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
- 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
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- Human Computer Interaction (AREA)
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- 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 lithium battery energy storage management method, 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 current transformer, a fire control management module, a temperature control module, a warning module and an intelligent terminal. The invention carries out charging energy storage at the time of low peak of electricity utilization, discharges at the time of high peak of electricity utilization, can carry out emergency power supply and fire control filling, reserves fire control electricity utilization lithium batteries every day, changes every day, and reserves two groups of fire control lithium batteries every day; the position of the lithium battery for fire fighting is ensured to be randomly updated every day, the lithium battery for fire fighting also participates in normal charging and discharging work, the running state of the lithium battery for fire fighting can be ensured to be mastered in time, and the lithium battery for fire fighting is prevented from being in a full-charge state or a non-power state for a long time; the reserve lithium cell of fire control designs spatial distance, guarantees no matter which direction receives the damage from the lithium cell, guarantees at least that a set of reserve lithium cell of fire control can supply to use.
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 lithium battery energy storage management method.
Background
Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries; the lithium metal battery refers to a battery which uses manganese dioxide as a positive electrode material, uses metal lithium or alloy metal thereof as a negative electrode material and adopts non-aqueous electrolyte solution; the lithium ion battery refers to a battery using a lithium alloy metal oxide as a positive electrode material and graphite as a negative electrode material, and using a non-aqueous electrolyte. The large-scale energy storage system is an important component of a future new energy system and a smart grid, and the energy storage battery is the key of the large-scale energy storage system. The lithium ion battery has the advantages of high energy density, long cycle life, small self-discharge rate, no memory effect, environmental protection and the like, has wide application prospect in the field of energy storage, and is the preferred lithium iron phosphate battery in the field of energy storage.
The existing lithium battery energy storage management system has poor emergency treatment effect on the aspect of fire-fighting reserve power utilization, and the fire-fighting reserve battery is often dead or damaged or the reserve battery is threatened by fire-fighting police conditions.
Disclosure of Invention
The present invention provides a lithium battery energy storage management system and a method thereof, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: a lithium battery energy storage management system comprises 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 lithium battery module, a warning module and an intelligent terminal, wherein the cloud service platform is used for carrying out platform control management on the lithium battery energy storage management system, the EMS energy management module is used for carrying out system data acquisition, network monitoring, energy scheduling and network data analysis, the BMS battery management module is used for carrying out monitoring, evaluation, protection and balance processing on the lithium battery module, the converter is used for converting alternating current into direct current, the fire control management module is used for managing emergency power supply allocation of the system in fire control, the temperature control module is used for carrying out temperature control processing on the lithium battery module, the lithium battery module is used for storing electric energy and distributing and utilizing the electric energy, the warning module is used for warning problems in the system, the intelligent terminal is used for remotely controlling and checking data and running states in the system, the EMS energy management module, the BMS battery management module, the fire control management module, the temperature control module, the lithium battery module, the warning module and the intelligent terminal are equally divided and are respectively connected with the cloud service platform in a communication mode, and the EMS energy management module, the BMS battery management module and the converter are equally divided and are respectively connected with the lithium battery module in an electric mode.
Further, the cloud service platform comprises a central processing unit, an information receiving and sending unit and a storage unit, wherein the central processing unit is used for analyzing and integrating data, the information receiving and sending unit is used for receiving and sending information, and the storage unit is used for storing data.
Further, the storage unit comprises a local storage and a cloud storage.
Furthermore, the EMS energy management module comprises a data acquisition unit, a network monitoring unit, an energy scheduling unit and a network data analysis unit, wherein the data acquisition unit is used for acquiring system data and power grid data, the network monitoring unit is used for monitoring and processing the network data, the energy scheduling unit is used for controlling the energy inside the microgrid and maintaining the power balance of the microgrid, and the network data analysis unit is used for analyzing and processing the network monitoring data.
Further, the BMS battery management module includes a battery monitoring unit, a battery evaluation unit, a battery protection unit, and a battery equalization unit, the battery monitoring unit is configured to monitor voltage, current, temperature, insulation status, and protection amount information of the battery, the battery evaluation unit may calculate and evaluate SOC, SOH, and accumulated processing power of the battery according to the voltage and current information, the battery protection unit may protect safety of the battery by alarming an event such as a fault according to the temperature and the protection amount information of the battery, and the battery equalization unit performs active equalization control processing according to detecting a voltage difference of the battery.
Further, the fire control management module includes fire control stand-by battery monitoring unit, fire control stand-by battery switching unit and fire control stand-by battery positioning unit, fire control stand-by battery monitoring unit is used for carrying out the monitoring data arrangement to fire control stand-by battery, fire control stand-by battery switching unit is used for switching over the processing to fire control stand-by battery, fire control stand-by battery positioning unit is used for carrying out automatic positioning detection and check-up processing to fire control stand-by battery.
Furthermore, the temperature control module comprises a temperature analysis unit and a temperature regulation unit, wherein the temperature analysis unit is used for analyzing and processing the temperature of the system, and the temperature regulation unit is used for regulating and processing the temperature of the system.
Furthermore, the lithium battery module comprises a series-parallel switching unit and an energy storage allocation unit, the series-parallel switching unit is used for performing series-parallel automatic switching processing on the lithium battery, and the energy storage allocation unit is used for allocating the energy storage state of the lithium battery.
Furthermore, 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 system is started through the intelligent terminal, the BMS battery management module monitors the voltage, current, temperature, insulation condition and protection quantity information of the battery, the SOC, SOH and accumulated processing electric quantity of the battery are evaluated 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 and the like according to the temperature and protection quantity information of the battery, the voltage difference of the battery is detected, active balance control is executed, the system management of the battery is realized, and the battery management data are sent to the cloud service platform; the EMS energy management module carries out data acquisition, network monitoring, energy scheduling and network data analysis on the battery and the power grid, realizes the internal energy control of the microgrid, maintains the power balance of the microgrid, ensures the normal operation of the microgrid, can carry out charging and energy storage in the period of low peak power consumption, discharges in the period of high peak power consumption, reasonably utilizes the stored low-price electric quantity to replace high-price electric quantity, effectively saves cost, and sends 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; the temperature control data are sent to a cloud service platform;
b) the cloud service platform analyzes and integrates the data, the fire-fighting management module performs fire-fighting standby management on the lithium batteries, the fire-fighting electricity and the peak electricity lithium batteries are distinguished, the fire-fighting electricity lithium batteries are reserved every day, no special lithium battery is provided, the lithium batteries are exchanged every day, and two groups of fire-fighting electricity lithium batteries are reserved every day;
establishing a three-dimensional lithium battery model, integrating all lithium batteries in a 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 original point, and performing point coordinate (X) calculation on the lithium batteriesi，Yi，Zi) Marking and counting;
the point coordinate of the lithium battery farthest from the origin is (X)max，Ymax，Zmax) The maximum distance between the lithium battery and the origin is L0＝√(Xmax 2+Ymax 2+Zmax 2) (ii) a The coordinates of two groups of reserved lithium batteries for fire fighting on the same day are respectively as follows: (X)a，Ya，Za)、(Xb，Yb，Zb) (ii) a The coordinates of two groups of reserved lithium batteries for fire fighting which are exchanged in the next day are respectively (X)c，Yc，Zc)、(Xd，Yd，Zd) The distances between four groups of reserved lithium batteries for fire fighting in the front and the back two days are respectively L1、L2、L3、L4、L5、L6；
L1＝√{(Xa-Xb)2+(Ya-Yb)2+(Za-Zb)2}；
L2＝√{(Xc-Xd)2+(Yc-Yd)2+(Zc-Zd)2}；
L3＝√{(Xa-Xc)2+(Ya-Yc)2+(Za-Zc)2}；
L4＝√{(Xa-Xd)2+(Ya-Yd)2+(Za-Zd)2}；
L5＝√{(Xb-Xc)2+(Yb-Yc)2+(Zb-Zc)2}；
L6＝√{(Xb-Xd)2+(Yb-Yd)2+(Zb-Zd)2}；
In the process of randomly switching the coordinates of two groups of lithium batteries for fire fighting on two adjacent days, a satisfactory condition H is required: 1/2L0＜L1、1/2*L0＜L2、1/2*L0＜L3、1/2*L0＜L4、1/2*L0＜L5、1/2*L0＜L6；
Uploading the three-dimensional lithium battery model, the coordinate system and the coordinate point data to a cloud service platform;
c) when the cloud service platform analyzes data and displays that a fire-fighting backup battery needs to be started, the fire-fighting backup 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 backup battery, the switched fire-fighting backup battery preferentially selects the lithium battery meeting the condition H, when the lithium battery cannot completely 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 series-parallel switching processing on the lithium battery, during charging, the lithium battery is adjusted to be in a series state, uniform charging can be performed, the lithium battery is adjusted to be in a parallel state, charging can be performed one by one, when danger or fire emergency occurs, the parallel state is adjusted, and data are uploaded to a cloud service platform;
e) and the intelligent terminal can be used for inquiring and setting 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 intelligent fire-fighting power supply system, the cloud service platform, the EMS energy management module, the BMS battery management module, the converter, the fire-fighting management module, the temperature control module, the warning module and the intelligent terminal are arranged, charging and energy storage are carried out in the low-peak electricity consumption period, discharging is carried out in the high-peak electricity consumption period, emergency standby electricity and fire-fighting filling can be carried out, the fire-fighting electricity consumption and the high-peak electricity consumption lithium batteries are different, a fire-fighting electricity lithium battery is reserved every day, a special lithium battery is not used, replacement is carried out every day, and two groups of fire-fighting lithium batteries are reserved every day; the lithium battery for fire fighting is guaranteed to be reserved all the time, the position of the lithium battery for fire fighting can be randomly updated every day, the lithium battery for fire fighting also participates in normal charging and discharging work, the running state of the lithium battery for fire fighting can be guaranteed to be mastered in time, and the lithium battery for fire fighting is prevented from being in a full-charge state or a non-power state for a long time; the space distance between two groups of lithium batteries for fire fighting is guaranteed to be larger than one half of the maximum space distance between any two groups of lithium batteries, and the minimum space distance between two adjacent lithium battery packs is larger than one half of the maximum space distance between any two groups of lithium batteries; the space distance of the fire-fighting standby lithium battery is designed, so that no matter which direction the lithium battery is damaged, at least one group of fire-fighting standby lithium batteries can be used; when the electric quantity of the lithium battery for fire fighting is insufficient, the lithium battery for fire fighting can be directly switched to the lithium battery with sufficient electric quantity;
2. according to the invention, by arranging the lithium battery modules, the lithium batteries are switched in series and parallel, during charging, the lithium batteries are adjusted to be in a series state, uniformly charged and adjusted to be in a parallel state, and are charged one by one, and when danger or fire emergency occurs, the parallel state is adjusted and mutually independent, so that the whole fault caused by damage of a single lithium battery is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the module connection of the present invention as a whole;
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 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 transmitting/receiving 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. a display unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The lithium battery energy storage management system shown in fig. 1 comprises a cloud service platform 1, an EMS energy management module 2, a BMS battery management module 3, a current transformer 4, a fire protection management module 5, a temperature control module 6, a lithium battery module 7, a warning module 8 and an intelligent terminal 9, wherein the cloud service platform 1 is used for performing platform control management on the lithium battery energy storage management system, the EMS energy management module 2 is used for performing system data acquisition, network monitoring, energy scheduling and network data analysis, the BMS battery management module 3 is used for monitoring, evaluating, protecting and balancing the lithium battery module 7, the current transformer 4 is used for converting alternating current into direct current, the fire protection management module 5 is used for managing fire emergency power supply allocation of the system, the temperature control module 6 is used for performing temperature control processing on the lithium battery module 7, lithium battery module 7 is arranged in to storing the electric energy to distribute the utilization to the electric energy, warning module 8 is arranged in carrying out the warning to the problem that appears in the system and handles, data and running state in intelligent terminal 9 is arranged in remote control and the viewing system, EMS energy management module 2 BMS battery management module 3 fire control management module 5 temperature control module 6 lithium battery module 7 warning module 8 with intelligent terminal 9 equally divide respectively with cloud service platform 1 communication connection, EMS energy management module 2 BMS battery management module 3 with converter 4 equally divide respectively with lithium battery module 7 electric connection.
The cloud service platform 1 comprises a central processing unit 10, an information transceiving unit 11 and a storage unit 12, wherein the central processing unit 10 is used for analyzing and integrating data, the information transceiving unit 11 is used for receiving and sending 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 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 the energy inside a microgrid and maintaining the power balance of the microgrid, and the network data analysis unit 16 is used for analyzing and processing 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 equalization unit 20, the battery monitoring unit 17 is configured to monitor voltage, current, temperature, insulation status, and protection amount information of the battery, the battery evaluation unit 18 may calculate and evaluate SOC, SOH, and accumulated processing power amount of the battery according to the voltage and current information, the battery protection unit 19 may protect safety of the battery by an event such as an alarm failure according to the temperature and protection amount information of the battery, and the battery equalization unit 20 performs active equalization control processing according to a detected voltage difference of the battery.
Fire control management module 5 includes fire control stand-by battery monitoring unit 21, fire control stand-by battery switching unit 22 and fire control stand-by battery positioning unit 23, fire control stand-by battery monitoring unit 21 is used for carrying out the monitoring data arrangement to fire control stand-by battery, fire control stand-by battery switching unit 22 is used for switching over the processing to fire control stand-by battery, fire control stand-by battery positioning unit 23 is used for carrying out automatic positioning detection and check-up processing to fire control stand-by 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 analyzing and processing the temperature of the system, and the temperature adjustment unit 25 is used for adjusting and processing the temperature of the system.
The lithium battery module 7 comprises a series-parallel switching unit 26 and an energy storage allocation unit 27, the series-parallel switching unit 26 is used for performing series-parallel automatic switching processing 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, 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.
The invention also provides a use method of the lithium battery energy storage management system, which comprises the following steps:
the system is started through the intelligent terminal 9, the BMS battery management module 3 monitors the voltage, current, temperature, insulation condition and protection quantity information of the battery, the SOC, SOH and accumulated processing electric quantity of the battery are evaluated 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 and the like according to the temperature and protection quantity information of the battery, the voltage difference of the battery is detected, active balance control is executed, the system management of the battery is realized, and the battery management data are sent to the cloud service platform 1; the EMS energy management module 2 is used for carrying out data acquisition, network monitoring, energy scheduling and network data analysis on a battery and a power grid, realizing the control of the internal energy of the microgrid, maintaining the power balance of the microgrid, ensuring the normal operation of the microgrid, carrying out charging energy storage in the period of low peak power utilization, carrying out discharging in the period of high peak power utilization, reasonably utilizing the stored low-price electric quantity to replace high-price electric quantity, effectively saving cost and sending 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; the temperature control data are sent to the cloud service platform 1;
the cloud service platform 1 analyzes, integrates and processes the data, the fire-fighting management module 5 performs fire-fighting standby management on lithium batteries, the fire-fighting electricity consumption and the peak electricity consumption lithium batteries are distinguished, the fire-fighting electricity lithium batteries are reserved every day, no special lithium batteries are used, the lithium batteries are exchanged every day, and two groups of the fire-fighting electricity lithium batteries are reserved every day; establishing a three-dimensional lithium battery model, integrating all lithium batteries in a 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 original point, and performing point coordinate (X) calculation on the lithium batteriesi，Yi，Zi) Marking and counting; the point coordinate of the lithium battery farthest from the origin is (X)max，Ymax，Zmax) The maximum distance between the lithium battery and the origin is L0＝√(Xmax 2+Ymax 2+Zmax 2) (ii) a The coordinates of two groups of reserved lithium batteries for fire fighting on the same day are respectively as follows: (X)a，Ya，Za)、(Xb，Yb，Zb) (ii) a The coordinates of two groups of reserved lithium batteries for fire fighting which are exchanged in the next day are respectively (X)c，Yc，Zc)、(Xd，Yd，Zd) The distances between four groups of reserved lithium batteries for fire fighting in the front and the back two days are respectively L1、L2、L3、L4、L5、L6；
L1＝√{(Xa-Xb)2+(Ya-Yb)2+(Za-Zb)2}；
L2＝√{(Xc-Xd)2+(Yc-Yd)2+(Zc-Zd)2}；
L3＝√{(Xa-Xc)2+(Ya-Yc)2+(Za-Zc)2}；
L4＝√{(Xa-Xd)2+(Ya-Yd)2+(Za-Zd)2}；
L5＝√{(Xb-Xc)2+(Yb-Yc)2+(Zb-Zc)2}；
L6＝√{(Xb-Xd)2+(Yb-Yd)2+(Zb-Zd)2}；
In the process of randomly switching the coordinates of two groups of lithium batteries for fire fighting on two adjacent days, a satisfactory condition H is required: 1/2L0＜L1、1/2*L0＜L2、1/2*L0＜L3、1/2*L0＜L4、1/2*L0＜L5、1/2*L0＜L6(ii) a Uploading the three-dimensional lithium battery model, the coordinate system and the coordinate point data to the cloud service platform 1;
when the cloud service platform 1 analyzes data and displays that a 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 completely 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 series-parallel switching processing on the lithium batteries, during charging, the lithium batteries are adjusted to be in a series state, uniform charging can be performed, the lithium batteries are adjusted to be in a parallel state, charging can be performed one by one, when danger or fire emergency occurs, the parallel state is adjusted, and data are uploaded to the cloud service platform 1; the intelligent terminal 9 can query and set data in the system through the cloud service platform 1.
This embodiment has specifically solved current lithium cell energy storage management system among the background art, and is not good to the emergency treatment effect in the aspect of the fire control deposit power consumption, often appears the fire control deposit battery electroless, damage or deposit battery self receive the fire control situation threaten the problem.
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 energy storage is carried out at the time of low peak power utilization, discharging is carried out at the time of peak power utilization, emergency standby power and fire control filling can be carried out, the fire control power utilization and the high peak power utilization lithium batteries are distinguished, a fire control power utilization lithium battery is reserved every day, no special lithium battery is provided, replacement is carried out every day, and two groups of fire control power utilization lithium batteries are reserved every day; the lithium battery for fire fighting is guaranteed to be reserved all the time, the position of the lithium battery for fire fighting can be randomly updated every day, the lithium battery for fire fighting also participates in normal charging and discharging work, the running state of the lithium battery for fire fighting can be guaranteed to be mastered in time, and the lithium battery for fire fighting is prevented from being in a full-charge state or a non-power state for a long time; the space distance between two groups of lithium batteries for fire fighting is guaranteed to be larger than one half of the maximum space distance between any two groups of lithium batteries, and the minimum space distance between two adjacent lithium battery packs is larger than one half of the maximum space distance between any two groups of lithium batteries; the space distance of the fire-fighting standby lithium battery is designed, so that no matter which direction the lithium battery is damaged, at least one group of fire-fighting standby lithium batteries can be used; when the electric quantity of the lithium battery for fire fighting is insufficient, the lithium battery for fire fighting can be directly switched to the lithium battery with sufficient electric quantity; the series-parallel connection of lithium cell switches, during the charging, adjusts the series connection state with the lithium cell, and even charging adjusts the parallel connection state, charges one by one, when taking place danger or fire control are emergent, adjusts the parallel connection state, and mutual independence avoids single lithium cell damage to cause whole trouble.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a lithium cell 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), temperature control module (6), lithium cell module (7), warning module (8) and intelligent terminal (9), its characterized in that: the cloud service platform (1) is used for carrying out platform type control management on a lithium battery energy storage 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 monitoring, evaluating, protecting and balancing 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 emergency power supply allocation of the system in fire control, 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 storing electric energy and distributing and utilizing the electric energy, the warning module (8) is used for warning problems occurring in the system, and the intelligent terminal (9) is used for remotely controlling and checking data and running states in the system, EMS energy management module (2) BMS battery management module (3) fire control management module (5) temperature control module (6) lithium battery module (7) warning module (8) with intelligent terminal (9) equally divide do not with cloud service platform (1) communication connection, EMS energy management module (2) BMS battery management module (3) with converter (4) equally divide do not with lithium battery module (7) electric connection.
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 sending unit (11) and a storage unit (12), wherein the central processing unit (10) is used for analyzing and integrating data, the information receiving and sending unit (11) is used for receiving and sending 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) comprises 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 inside a microgrid and maintaining the power balance of the microgrid, 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 equalization unit (20), wherein the battery monitoring unit (17) is used for monitoring the voltage, the current, the temperature, the insulation condition and the protection quantity information of the battery, the battery evaluation unit (18) can calculate and evaluate the SOC, the SOH and the 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 events such as alarm faults and the like according to the temperature and the protection quantity information of the battery, and the battery equalization unit (20) executes active equalization control processing according to the detected voltage difference of the battery.
6. The lithium battery energy storage management system of claim 1, wherein: fire control management module (5) are including fire control stand-by battery monitoring unit (21), fire control stand-by battery switching unit (22) and fire control stand-by battery positioning unit (23), fire control stand-by battery monitoring unit (21) are used for carrying out the monitoring data arrangement to fire control stand-by battery, fire control stand-by battery switching unit (22) are used for switching over the processing to fire control stand-by battery, fire control stand-by battery positioning unit (23) are used for carrying out automatic positioning detection and check-up processing to fire control stand-by 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 adjusting unit (25), the temperature analysis unit (24) is used for carrying out temperature analysis processing on the system, and the temperature adjusting unit (25) is used for adjusting 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 switching unit (26) and an energy storage allocation unit (27), the series-parallel switching unit (26) is used for performing series-parallel automatic switching processing 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 the data in the system.
10. The use method of the lithium battery energy storage management system according to any one of claims 1 to 9, wherein: the method comprises the following steps:
a) the system is started through an intelligent terminal (9), a BMS battery management module (3) monitors the voltage, current, temperature, insulation condition and protection quantity information of the battery, evaluates and calculates the SOC, SOH and accumulated processing electric quantity of the battery according to the voltage and current information of the battery, protects the safety of the battery through events such as alarm faults and the like according to the temperature and protection quantity information of the battery, detects the voltage difference of the battery, executes active equalization control, realizes system management of the battery, and sends 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 a battery and a power grid, realizes internal energy control on the microgrid, maintains the power balance of the microgrid, ensures the normal operation of the microgrid, can perform charging energy storage in the period of low peak power utilization, performs discharging in the period of high peak power utilization, reasonably utilizes the stored low-price electric quantity to replace the high-price electric quantity, effectively saves the cost, and transmits 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; the temperature control data are sent to a cloud service platform (1);
b) the cloud service platform (1) analyzes and integrates the data, the fire-fighting management module (5) performs fire-fighting standby management on lithium batteries, the fire-fighting electricity and the peak electricity lithium batteries are distinguished, the fire-fighting electricity lithium batteries are reserved every day, no special lithium batteries are used, the lithium batteries are replaced every day, and two groups of fire-fighting electricity lithium batteries are reserved every day;
establishing a three-dimensional lithium battery model, and integrating all lithium batteries in the lithium battery module into a transparent three-dimensional cuboidThe model is characterized in that each lithium battery is fitted into a point, the points of the lithium batteries are fitted into the transparent three-dimensional cuboid model, then a three-dimensional coordinate system is established by taking one vertex of the transparent three-dimensional cuboid model as an origin, and the point coordinates (X) of the lithium batteries are subjected to point coordinate transformationi，Yi，Zi) Marking and counting;
the point coordinate of the lithium battery farthest from the origin is (X)max，Ymax，Zmax) The maximum distance between the lithium battery and the origin is L0＝√(Xmax 2+Ymax 2+Zmax 2) (ii) a The coordinates of two groups of reserved lithium batteries for fire fighting on the same day are respectively as follows: (X)a，Ya，Za)、(Xb，Yb，Zb) (ii) a The coordinates of two groups of reserved lithium batteries for fire fighting which are exchanged in the next day are respectively (X)c，Yc，Zc)、(Xd，Yd，Zd) The distances between four groups of reserved lithium batteries for fire fighting in the front and the back two days are respectively L1、L2、L3、L4、L5、L6；
L1＝√{(Xa-Xb)2+(Ya-Yb)2+(Za-Zb)2}；
L2＝√{(Xc-Xd)2+(Yc-Yd)2+(Zc-Zd)2}；
L3＝√{(Xa-Xc)2+(Ya-Yc)2+(Za-Zc)2}；
L4＝√{(Xa-Xd)2+(Ya-Yd)2+(Za-Zd)2}；
L5＝√{(Xb-Xc)2+(Yb-Yc)2+(Zb-Zc)2}；
L6＝√{(Xb-Xd)2+(Yb-Yd)2+(Zb-Zd)2}；
In the process of randomly switching the coordinates of two groups of lithium batteries for fire fighting on two adjacent days, a satisfactory condition H is required: 1/2L0＜L1、1/2*L0＜L2、1/2*L0＜L3、1/2*L0＜L4、1/2*L0＜L5、1/2*L0＜L6；
Uploading the three-dimensional lithium battery model, the coordinate system and the coordinate point data to a cloud service platform (1);
c) when the cloud service platform (1) analyzes data and displays that a fire-fighting backup battery is needed to be started, the fire-fighting backup 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 backup battery, the switched fire-fighting backup battery preferentially selects the lithium battery meeting the condition H, when the lithium battery cannot completely 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 series-parallel switching processing on the lithium batteries, during charging, the lithium batteries are adjusted to be in a series state, uniform charging can be performed, the lithium batteries are adjusted to be in a parallel state, charging can be performed one by one, when danger or fire emergency occurs, the parallel state is adjusted, and data are uploaded to the cloud service platform (1);
e) data in the system can be inquired and set through the cloud service platform (1) through the intelligent terminal (9).
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