CN111509314A - Energy storage cabin integrated management equipment - Google Patents
Energy storage cabin integrated management equipment Download PDFInfo
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- CN111509314A CN111509314A CN202010349694.5A CN202010349694A CN111509314A CN 111509314 A CN111509314 A CN 111509314A CN 202010349694 A CN202010349694 A CN 202010349694A CN 111509314 A CN111509314 A CN 111509314A
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- energy storage
- intelligent gateway
- storage cabin
- battery
- communication bus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an energy storage cabin comprehensive management device which comprises a plurality of battery clusters formed by series connection of PACKs, wherein each battery cluster is controlled by a single BMS, the plurality of battery clusters are connected with an intelligent gateway through a CAN communication bus, a 485 communication bus is connected with the intelligent gateway, the 485 communication bus is connected with subsystems comprising an air conditioning system, a fire fighting system and an auxiliary power supply system, a P L C is connected and communicated with the intelligent gateway to realize monitoring and control of each subsystem and the battery clusters, a video monitoring system transmits video data to the intelligent gateway through an Ethernet, the intelligent gateway and a human-computer interface are in communication connection with an industrial switch, and the switch realizes external communication of an upper computer or remote communication.
Description
Technical Field
The invention belongs to the technical field of regulating systems of electrochemical energy storage cabins, and relates to energy storage cabin comprehensive management equipment.
Background
The energy storage cabin is used as an electric energy temporary storage component, and daily work operation relates to energy storage and release, namely input and output flow. When energy flows, certain heat is generated. When short-term high-power energy flows, the battery is charged and discharged at high multiplying power, a large amount of heat energy is generated in the process, the temperature of the battery is increased, the capacity and the charging and discharging capacity of the battery are influenced, and in addition, the space of the sealed energy storage cabin is added, so that the heat dissipation of the battery is very important.
The fan of battery PACK box is responsible for exporting the inside heat of box, with the leading-in of outside air. Heat exchange then takes place inside the container. The container is a closed system, so an air conditioning device is needed to realize heat exchange between the inside and the outside of the container body, and the internal temperature of the container is ensured to be in a range suitable for the battery to work.
Meanwhile, the ambient temperature is too low, the activity of chemical substances in the battery is reduced, the effective capacity of the battery is reduced, and the charging and discharging efficiency of the whole system is reduced. When the ambient temperature is too low, it is necessary to heat the battery. For lithium ion batteries, there are strict limits on the lower temperature of discharge: not lower than-20 ℃. The charging temperature not only specifies the lowest temperature like discharging, but also clearly specifies that the battery can be charged only with a small rate at low temperature and cannot be fully charged (for example, the battery can be charged only with 0.2C at 0-15 ℃), the optimal use temperature of the storage battery is 25 ℃, when the temperature is reduced by 1 ℃, the relative capacity is greatly reduced by 0.8%, and the capacity is recovered after the temperature is increased. Therefore, when the weather temperature suddenly drops, the chemical reaction rate inside the storage battery becomes slower, and the capacity of the storage battery for discharging the external supply current is greatly reduced.
The energy storage cabin has a large volume and a large number of built-in batteries, so that in order to ensure effective operation, enough power for refrigerating and heating is required to be provided. However, due to the hysteresis of heat transfer, temperature gradients exist between the battery core and the interior of the energy storage cabin, and between the energy storage cabin and the air return inlet of the air conditioner.
The heat management system accounts for most of the energy consumption of the energy storage cabin: each battery PACK is provided with a plurality of direct current ventilation motors, and the ambient temperature in the energy storage cabin needs to be maintained by the operation of a high-power industrial air conditioner. Once ventilation and heat exchange are lost, the temperature of the battery cell can quickly rise and accumulate under the action of large current, and the BMS can manage the stop of charging and discharging of the battery pack when the upper temperature limit is reached. And BMS and BMU are the central system of battery management, must guarantee their normal reliable power supply, otherwise can influence the normal operation of battery charge-discharge, even cause the battery to damage.
The safe and reliable auxiliary power supply system is particularly important for the energy storage cabin, so an Uninterruptible Power Supply (UPS) system is required to be selected to ensure the reliable power supply of the energy storage cabin. And after the power supply is interrupted seriously, a reliable protection mechanism is provided, the system operates in a power reduction mode, and the battery pack is prevented from being overheated and the accident is prevented from being enlarged.
Disclosure of Invention
The invention aims to provide energy storage cabin comprehensive management equipment, which converts communication protocols of subsystems in an energy storage cabin by taking an intelligent gateway as a data translator, unifies the protocols into a TCP/IP protocol, and then communicates with a human-computer interface and an upper computer to comprehensively manage the energy storage cabin.
The technical scheme includes that the energy storage cabin comprehensive management equipment comprises a plurality of battery clusters formed by series connection of PACKs, each battery cluster is controlled by a single BMS, the plurality of battery clusters are connected with an intelligent gateway through a CAN communication bus, a 485 communication bus is connected with the intelligent gateway, subsystems are connected onto the 485 communication bus and comprise an air conditioning system, a fire fighting system and an auxiliary power supply system, P L C is connected and communicated with the intelligent gateway to achieve monitoring and control of each subsystem and the battery clusters, a video monitoring system transmits video data to the intelligent gateway through an Ethernet, the intelligent gateway and a human-computer interface are in communication connection with an industrial switch, and the switch achieves external communication of upper computers or remote communication.
The air conditioning system is connected with the intelligent gateway through a 485 communication bus, and the P L C reads the temperature data of the battery cell in the battery cluster BMS through the intelligent gateway and sends out an instruction for controlling the air conditioning system to work according to the temperature value.
The fire extinguishing system detects whether a fire disaster happens through a sensor of the fire extinguishing system, information is transmitted to the intelligent gateway through a 485 communication bus and transmitted to an upper computer or remote equipment through an industrial switch, and the upper computer or the remote equipment sets a fire extinguishing and alarm starting mechanism of the fire extinguishing system.
The auxiliary power supply system accesses external commercial power into the energy storage cabin, distributes the alternating current power supply by using the switch equipment, obtains 24V direct current by using the power supply conversion device and supplies power to the air conditioning system, the video monitoring system and the fire fighting system.
The auxiliary power supply system is connected with the intelligent gateway through a 485 communication bus and is monitored and controlled by the P L C.
The video monitoring system can remotely check and confirm the accidental conditions of illegal intrusion, fire and the like, and transmits video information to an upper computer or remote equipment through an industrial switch.
And the working personnel inquire the state, the operation parameters, the fault information and the historical operation data of each device of the energy storage cabin on site through a human-computer interface.
The invention has the beneficial effects that: through energy storage cabin intelligent management equipment, the interconnection of internal equipment information has been realized, has established the swift contact of electric core temperature and air conditioning system, makes the electric core be under the air conditioner protection all the time. The battery data, the environmental data, the equipment state and other information data in the energy storage cabin can be conveniently and quickly transmitted to an upper computer and remote equipment, and can also be conveniently inquired in a centralized manner on site, so that the complex equipment in the energy storage cabin can realize intelligent supervision and reliable operation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the integrated management device of the energy storage cabin of the invention;
fig. 2 is a schematic diagram of the internal structure of the integrated management device of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in the figure 1-2, the energy storage cabin comprehensive management equipment comprises a plurality of battery clusters formed by series connection of PACKs, wherein each battery cluster is controlled by a single BMS, the plurality of battery clusters are connected with an intelligent gateway through a CAN communication bus, a 485 communication bus is connected with the intelligent gateway, subsystems are connected to the 485 communication bus and comprise an air conditioning system, a fire fighting system and an auxiliary power supply system, a P L C is connected and communicated with the intelligent gateway to monitor and control each subsystem and the battery clusters, a video monitoring system transmits video data to the intelligent gateway through an Ethernet, the intelligent gateway and a human-computer interface are in communication connection with an industrial switch, and the switch is used for realizing external communication of upper computers or remote communication.
The air conditioning system, the fire fighting system and the video monitoring system are all in the prior art, and the intelligent gateway plays roles in network connection and protocol conversion. The system is used between different communication protocols, data formats or description languages, even systems with completely different architectures as a data translator, repackages received information to unify the information into a TCP/IP protocol, and then communicates through a switch, a human-computer interface and an upper computer.
The human-computer interface realizes information exchange between the system and the user, converts data information in the machine into information which is easy to be recognized by human beings, and simultaneously can transmit user instruction data to the machine equipment to realize communication between the human beings and the equipment. Meanwhile, the human-computer interface comprises an operating system, and can perform certain logic operation and data analysis to assist a user in information processing and automatic control of equipment.
The air conditioning system is connected with the intelligent gateway through a 485 communication bus, the P L C reads the temperature data of the battery cell in the battery pack BMS through the intelligent gateway and sends out an instruction for controlling the air conditioning system to work according to the temperature value, if the condition is met, the P L C controls the air conditioning system to adjust the temperature to rise and fall according to the temperature value, and the rapid rise of the battery temperature caused by the temperature induction lag is avoided.
The video monitoring system is the premise that the energy storage cabin is unattended, and can remotely check and confirm the accidental conditions of illegal intrusion, fire and the like. The video monitoring system is accessed to the energy storage cabin comprehensive management equipment through the Ethernet and transmits video information to an upper computer or remote equipment through the industrial switch.
The fire extinguishing system detects whether a fire disaster happens through a sensor of the fire extinguishing system, information is transmitted to the intelligent gateway through a 485 communication bus, the information is transmitted to an upper computer or a remote device through an industrial switch, the upper computer or the remote device sets a fire extinguishing and alarming starting mechanism of the fire extinguishing system, once the fire extinguishing and alarming starting mechanism is set, the fire extinguishing and alarming system is free from being interfered by external devices, and the fire extinguishing or alarming work is automatically carried out according to the acquired information.
For an unattended energy storage cabin, the fire disaster can be rapidly identified, certain fire-fighting measures can be taken, fire disaster alarm information can be uploaded in time, timely fire extinguishment is guaranteed, and harm and loss caused by the fire disaster are reduced to the maximum extent.
The auxiliary power supply system accesses external commercial power into the energy storage cabin, distributes the alternating current power supply by using the switch equipment, obtains 24V direct current by using the power supply conversion device and supplies power to the air conditioning system and the video monitoring system fire-fighting system.
The auxiliary power supply system is connected with the intelligent gateway through an RS485 interface and is monitored and controlled by a P L C.
Each subsystem of the energy storage system is accessed by the intelligent gateway, and the switch supports a bridge for communication between the subsystem and the human-computer interface and between the subsystem and the upper computer (external equipment).
And the working personnel inquire the state, the operation parameters, the fault information and the historical operation data of each device of the energy storage cabin on site through a human-computer interface.
Each system is an essential key system for safe, reliable and efficient operation of the energy storage cabin. Each system has own specific function and management control method, and system equipment comes from different manufacturers, and has various variables, various data types and formats and different communication modes. In order to facilitate on-site query and remote monitoring, all system communications need to be summarized, screened and arranged, classified according to attributes such as data importance, query frequency and the like, and displayed and stored on an on-site human-machine interface (HMI) and a remote upper computer.
According to the invention, the states and operation data of each subsystem of the energy storage cabin are summarized in a communication mode, and are analyzed and judged to form corresponding subsystem control instructions, so that each system can coordinate with each other while running autonomously, and suitable external working conditions are provided for the charging and discharging work of the battery.
The invention realizes the interconnection and intercommunication of the equipment information in the energy storage cabin, establishes the quick connection between the temperature of the battery cell and the air conditioning system, and ensures that the battery cell is always under the protection of the air conditioner. The battery data, the environmental data, the equipment state and other information data in the energy storage cabin can be inquired and set on the upper computer and the remote equipment, and can also be inquired in a field centralized manner, so that the complex equipment of the energy storage cabin realizes unattended supervision and operates reliably.
Claims (7)
1. The comprehensive management equipment for the energy storage cabin is characterized by comprising a plurality of battery clusters formed by series connection of PACKs, wherein each battery cluster is controlled by a single BMS, the plurality of battery clusters are connected with an intelligent gateway through a CAN (controller area network) communication bus, a 485 communication bus is connected with the intelligent gateway, subsystems comprising an air conditioning system, a fire fighting system and an auxiliary power supply system are connected to the 485 communication bus, a P L C is connected and communicated with the intelligent gateway to monitor and control each subsystem and the battery clusters, a video monitoring system transmits video data to the intelligent gateway through an Ethernet, the intelligent gateway and a human-computer interface are in communication connection with an industrial switch, and the switch is used for realizing external communication to an upper computer or remote equipment.
2. The integrated management device for the energy storage cabin according to claim 1, wherein the air conditioning system is connected to the intelligent gateway through a 485 communication bus, and the P L C reads temperature data of battery cells in the battery cluster BMS through the intelligent gateway and sends an instruction for controlling the operation of the air conditioning system according to the temperature value.
3. The energy storage cabin integrated management device of claim 1, wherein the fire-fighting system detects whether a fire occurs through its own sensor, transmits information to the intelligent gateway through a 485 communication bus, and transmits the information to an upper computer or a remote device through an industrial switch, and the upper computer or the remote device sets a fire-fighting and alarm starting mechanism of the fire-fighting system.
4. The energy storage cabin integrated management device according to claim 1, wherein the auxiliary power supply system is configured to access an external commercial power to the energy storage cabin, distribute an ac power source by using a switch device, obtain a 24V dc power by using a power conversion device, and supply power to an air conditioning system, a video monitoring system, and a fire fighting system.
5. The integrated management device for the energy storage cabin as claimed in claim 1, wherein the auxiliary power supply system is connected with the intelligent gateway through a 485 communication bus and is monitored and controlled by P L C.
6. The integrated management device for the energy storage cabin according to claim 1, wherein the video monitoring system can remotely check and confirm accidents such as illegal intrusion and fire, and transmits video information to an upper computer or remote equipment through an industrial switch.
7. The integrated management device for the energy storage cabin according to claim 1, wherein a worker queries the state, the operation parameters, the fault information and the historical operation data of each device of the energy storage cabin on site through a human-computer interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349694.5A CN111509314A (en) | 2020-04-28 | 2020-04-28 | Energy storage cabin integrated management equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349694.5A CN111509314A (en) | 2020-04-28 | 2020-04-28 | Energy storage cabin integrated management equipment |
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| CN111509314A true CN111509314A (en) | 2020-08-07 |
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| CN202010349694.5A Pending CN111509314A (en) | 2020-04-28 | 2020-04-28 | Energy storage cabin integrated management equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994081A (en) * | 2021-02-01 | 2021-06-18 | 华电国际电力股份有限公司天津分公司 | Multi-stage wide area management and control electric energy storage management integrated system and method |
| CN116027206A (en) * | 2023-03-29 | 2023-04-28 | 安徽中科中涣智能装备股份有限公司 | Multi-element perception grading early warning intelligent monitoring system based on station-level energy storage |
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