CN115411412A - Energy storage battery thermal management system and method adopting hybrid cooling mode - Google Patents
Energy storage battery thermal management system and method adopting hybrid cooling mode Download PDFInfo
- Publication number
- CN115411412A CN115411412A CN202211134874.7A CN202211134874A CN115411412A CN 115411412 A CN115411412 A CN 115411412A CN 202211134874 A CN202211134874 A CN 202211134874A CN 115411412 A CN115411412 A CN 115411412A
- Authority
- CN
- China
- Prior art keywords
- energy storage
- storage battery
- liquid cooling
- air
- cooling device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
-
- 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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
-
- 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
Abstract
The invention provides an energy storage battery thermal management system and method with a hybrid cooling mode, wherein a container electrical system in the system is used for controlling an energy storage battery system to charge and discharge based on received charge and discharge instructions; the energy storage battery system comprises a plurality of battery modules; energy storage control system includes air cooling device and liquid cooling device, energy storage control system is used for acquireing energy storage battery system's temperature information, whether normally charge-discharge with confirming energy storage battery system, if normally then utilize the air cooling device to dispel the heat to energy storage battery system, if unusual, then utilize air cooling device and liquid cooling device to dispel the heat to energy storage battery system, wherein, the air cooling device includes air conditioner and air-cooled pipeline, the air conditioner passes through the air-cooled pipeline and supplies air to energy storage battery system, air-cooled pipeline lateral wall is provided with a plurality of pipeline openings, each pipeline opening arranges the interval department at adjacent battery module. Based on this disclosed system, solved and did not compromise the problem of simple structure and thermal management effect among the current battery thermal management technique.
Description
Technical Field
The disclosure relates to the technical field of energy storage battery thermal management, in particular to a hybrid cooling type energy storage battery thermal management system and method.
Background
At present, the energy storage system is widely applied to links such as power generation, transmission, distribution and use of a power system, the advantages of self charging and discharging are exerted, and the problems of unbalanced supply and demand, new energy consumption and the like of the power system are solved. The container type energy storage system becomes the preferred choice of the energy storage system due to the advantages of convenience in installation, adaptation to different scenes, equipment integration and the like. The prefabricated cabin for placing the energy storage battery belongs to a system core component, and in the charging and discharging process, the battery generates a large amount of heat, and the battery in the prefabricated cabin is arranged tightly, so that the clearance is small, the heat generated by the battery cannot be discharged quickly, the heat is gathered, the operation temperature difference is large, and the like. In the past, the internal resistance and the capacity of the batteries are inconsistent, the performance and the service life of the energy storage battery are seriously influenced, and potential safety hazards are caused. For example, in 2021, one light storage and charging integrated project of an oil and gas company in a certain city is in fire explosion, so that a plurality of people are in distress due to accidents, and the direct property loss of the fire is as high as ten million. The accident investigation report shows that the thermal runaway and the fire explosion of the battery and the battery module are caused by the internal short circuit fault of the single lithium iron phosphate battery. Therefore, research and development of safe and efficient battery thermal management technology have great significance for wide application of energy storage batteries.
In a container type energy storage system, a battery module needs a comfortable environment temperature, and the battery thermal management technology needs to meet the characteristics of compact structure, good safety and strong universality. The existing battery thermal management technologies mainly include: air cooling, liquid cooling, phase change material cooling, and heat pipe cooling. The air cooling is short for air cooling, a common heat management technology using air as a cooling medium is adopted, an air conditioner and a fan are used for cooling the energy storage battery module, and the structure is simple. Liquid cooling is short of liquid cooling, and is a heat management technology of liquid media such as water and the like, and the heat capacity and the heat exchange coefficient are high. The phase change material cooling is that self material phase state conversion is used as a battery heat dissipation means, and the larger the specific heat capacity of the phase change material is, the higher the heat transfer coefficient is, and the better the cooling effect is. The heat pipe cooling is a heat management technology for taking away the heat of a battery by evaporating a medium at the heat absorption end of the heat pipe, and the size of a heat transfer area can be changed at will.
The existing battery heat management technology of the container type energy storage system generally takes an air cooling technology with simple structure and low cost as a first choice, but the air cooling technology cannot meet the requirement of a large-capacity energy storage battery module, and the problems of large temperature difference between battery packs at an inlet and an outlet and uneven heat dissipation exist; in addition, the liquid cooling technology has the problems of easy leakage of cooling medium and low economic benefit; the phase-change material cooling technology is expensive, does not have a heat dissipation function, and needs to be matched with other heat dissipation means, so that the heat pipe cooling technology has the problems of complex structure and large volume. In summary, the existing battery thermal management technology needs to be improved in terms of simple structure and good thermal management effect.
Disclosure of Invention
The present disclosure is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, a first objective of the present disclosure is to provide an energy storage battery thermal management system with a hybrid cooling method, so as to solve the problem that the existing battery thermal management technology does not take into account the simple structure and the thermal management effect.
A second objective of the present disclosure is to provide a thermal management method for an energy storage battery with a hybrid cooling method.
In order to achieve the above purpose, an embodiment of the first aspect of the present disclosure provides an energy storage battery thermal management system with a hybrid cooling method, including a container electrical system, an energy storage control system, and an energy storage battery system;
the container electrical system is used for controlling the energy storage battery system to charge and discharge based on the received charge and discharge instruction;
the energy storage battery system comprises a plurality of battery modules;
the energy storage control system comprises an air cooling device and a liquid cooling device, the energy storage control system is used for acquiring temperature information of the energy storage battery system, so as to determine whether the energy storage battery system is normally charged and discharged, if normal, the air cooling device is utilized to dissipate heat of the energy storage battery system, if abnormal, the air cooling device and the liquid cooling device are utilized to dissipate heat of the energy storage battery system, wherein the air cooling device comprises an air conditioner and an air cooling pipeline, the air conditioner supplies air to the energy storage battery system through the air cooling pipeline, the side wall of the air cooling pipeline is provided with a plurality of pipeline openings, and the pipeline openings are arranged at intervals of adjacent battery modules.
The energy storage battery thermal management system adopting the hybrid cooling mode, disclosed by the embodiment of the disclosure, is a container electrical system and is used for controlling the energy storage battery system to charge and discharge based on the received charge and discharge instruction; the energy storage battery system comprises a plurality of battery modules; energy storage control system includes air cooling device and liquid cooling device, energy storage control system is used for acquireing energy storage battery system's temperature information, whether normally charge-discharge with confirming energy storage battery system, if normally then utilize the air cooling device to dispel the heat to energy storage battery system, if unusual, then utilize air cooling device and liquid cooling device to dispel the heat to energy storage battery system, wherein, the air cooling device includes air conditioner and air-cooled pipeline, the air conditioner passes through the air-cooled pipeline and supplies air to energy storage battery system, air-cooled pipeline lateral wall is provided with a plurality of pipeline openings, each pipeline opening arranges the interval department at adjacent battery module. Under this condition, air cooling device and liquid cooling device mix the collocation, the thermal management effect has been optimized, in addition, the air cooling device during operation is through the forced air cooling pipeline to energy storage battery system air supply, and set up the pipeline opening at the forced air cooling pipeline lateral wall of the interval department of adjacent battery module, thereby for the battery module provides the uniform temperature flow field, the inhomogeneous possibility of heat dissipation has been reduced, the thermal management effect has further been improved, and energy storage battery thermal management system's structure has been simplified, the problem of not compromise simple structure and thermal management effect among the current battery thermal management technique has been solved.
In the energy storage battery thermal management system adopting the hybrid cooling mode, the air cooling device further comprises a first sensor arranged on the inner wall of the air cooling pipeline between the adjacent pipeline openings, and the energy storage control system is further used for acquiring the acquisition information of the first sensor to control the operation of the air conditioner.
In the energy storage battery thermal management system adopting the hybrid cooling mode in the embodiment of the first aspect of the disclosure, the liquid cooling device includes a first liquid cooling pipeline, a second liquid cooling pipeline, and an S-shaped elbow connected to the first liquid cooling pipeline and the second liquid cooling pipeline, and the S-shaped elbow is arranged at the back of the battery module.
In the energy storage battery thermal management system of a hybrid cooling mode of this disclosure first aspect embodiment, liquid cooling device still includes liquid cooling medium storage jar and liquid cooling pipeline outlet valve, liquid cooling medium storage jar with first liquid cooling pipe connection, liquid cooling pipeline outlet valve sets up on first liquid cooling pipeline.
In the energy storage battery thermal management system adopting the hybrid cooling mode in the embodiment of the first aspect of the disclosure, the liquid cooling device further comprises a second sensor arranged on the inner wall of the S-shaped elbow, and the energy storage control system is further configured to acquire acquisition information of the second sensor to control the state of the outlet valve of the liquid cooling pipeline.
In the energy storage battery thermal management system adopting the hybrid cooling mode in the embodiment of the first aspect of the disclosure, the liquid cooling device further comprises a liquid cooling switch, and the energy storage control system controls the on-off of the liquid cooling switch based on the condition of the energy storage battery system.
In the energy storage battery thermal management system adopting the hybrid cooling mode in the embodiment of the first aspect of the disclosure, the energy storage control system is further configured to utilize the liquid cooling device to dissipate heat of the energy storage battery system if the energy storage battery system is charged and discharged normally and the air cooling device is abnormal.
In the energy storage battery thermal management system with a hybrid cooling mode in an embodiment of the first aspect of the present disclosure, the energy storage control system is configured to obtain voltage information of the energy storage battery system, and determine whether the energy storage battery system is normally charged and discharged by combining the voltage information and the temperature information.
In order to achieve the above object, a second aspect of the present disclosure provides an energy storage battery thermal management method based on a hybrid cooling manner energy storage battery thermal management system in an embodiment of the first aspect of the present disclosure, including:
receiving a charge-discharge instruction and controlling an energy storage battery system to charge and discharge;
acquiring temperature information of the energy storage battery system in the charging and discharging process;
determining whether the energy storage battery system is normally charged and discharged based on the temperature information;
and if the energy storage battery system is normal, the air cooling device is used for dissipating heat of the energy storage battery system, and if the energy storage battery system is abnormal, the air cooling device and the liquid cooling device are used for dissipating heat of the energy storage battery system.
The energy storage battery thermal management method adopting the hybrid cooling mode receives a charge and discharge instruction and controls an energy storage battery system to charge and discharge; acquiring temperature information of an energy storage battery system in the charging and discharging process; determining whether the energy storage battery system is normally charged and discharged based on the temperature information; and if the energy storage battery system is normal, the air cooling device is used for dissipating heat of the energy storage battery system, and if the energy storage battery system is abnormal, the air cooling device and the liquid cooling device are used for dissipating heat of the energy storage battery system. Under this condition, air cooling device and liquid cooling device mix the collocation, the heat management effect has been optimized, air cooling device during operation in the energy storage battery thermal management system passes through the forced air cooling pipeline in addition to the energy storage battery system air supply, and set up the pipeline opening at the forced air cooling pipeline lateral wall of the interval department of adjacent battery module, thereby for the battery module provides the even temperature flow field, the inhomogeneous possibility of heat dissipation has been reduced, the heat management effect has further been improved, and the structure of energy storage battery thermal management system has been simplified, the problem of not taking into account simple structure and heat management effect among the current battery thermal management technique is solved.
In the energy storage battery thermal management method adopting the hybrid cooling mode in the embodiment of the second aspect of the disclosure, when the air cooling device and/or the liquid cooling device work, the flow rate information and the pressure information in the corresponding pipeline are collected, and the operation of the air cooling device and the liquid cooling device is controlled based on the flow rate information and the pressure information.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram of a hybrid cooling type energy storage battery thermal management system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an energy storage battery thermal management system adopting a hybrid cooling method according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating an arrangement of energy storage battery systems according to an embodiment of the disclosure;
fig. 4 is a schematic flow chart of a thermal management method of an energy storage battery with a hybrid cooling method according to an embodiment of the present disclosure;
description of the reference numerals:
1-container electrical system; 2-an energy storage control system; 3-energy storage battery system; 1-a transformer; 1-2-low voltage distribution cabinet; 1-3 — a first bidirectional inverter; 1-4 — a second bidirectional inverter; 1-5-master control cabinet; 2-1-air conditioning; 2-2 — a first cooling switch; 2-3-Battery Management System (BMS); 2-4 — a second cooling switch; 2-5-liquid cooling pump; 2-6-inlet valve of liquid cooling pipeline; 2-7-liquid cooling medium storage tank; 2-8-liquid cooling conduit outlet valve; 2-9-first elbow inlet valve; 2-10-a first elbow outlet valve; 2-11-a first liquid cooling conduit sensor; 2-12-a second liquid-cooled line sensor; 2-13-a third liquid cooling conduit sensor; 2-14-a fourth liquid cooling conduit sensor; 2-15-air-cooled pipeline inlet valve; 2-16-first air-cooled pipeline opening; 2-17-opening of a second air cooling pipeline; 2-18-a first air-cooled duct sensor; 2-19-a second air-cooled duct sensor; a, air cooling a pipeline; b, a first liquid cooling pipeline; c, a second liquid cooling pipeline; D-S type bent pipe; 3-1 — a first battery module; 3-2-a second battery module; 3-a first battery module sensor; 3-4-second battery module sensor.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the embodiments of the disclosure, as detailed in the claims that follow.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present disclosure, "plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise. It should also be understood that the term "and/or" as used in this disclosure refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present disclosure, and should not be construed as limiting the present disclosure.
The present disclosure is described in detail below with reference to specific examples.
The disclosure provides an energy storage battery thermal management system and method adopting a hybrid cooling mode, and aims to solve the problem that the existing battery thermal management technology does not take account of simple structure and thermal management effect. The energy storage battery thermal management system adopting the hybrid cooling mode can be referred to as an energy storage battery thermal management system for short.
Fig. 1 is a block diagram of an energy storage battery thermal management system with a hybrid cooling method according to an embodiment of the present disclosure. Fig. 2 is a schematic structural diagram of an energy storage battery thermal management system with a hybrid cooling method according to an embodiment of the present disclosure. Fig. 3 is a schematic diagram illustrating an arrangement of energy storage battery systems according to an embodiment of the disclosure.
As shown in fig. 1, the energy storage battery thermal management system adopting a hybrid cooling manner provided in the embodiment of the present disclosure includes a container electrical system 1, an energy storage control system 2, and an energy storage battery system 3. The container electrical system 1 is connected with the energy storage control system 2, and the energy storage battery system 3 is respectively connected with the container electrical system 1 and the energy storage control system 2. The energy storage battery thermal management system adopting the hybrid cooling mode can be arranged in a prefabricated cabin of the container type energy storage system.
In this embodiment, the container electrical system 1 is configured to control the energy storage battery system 3 to perform charging and discharging based on the received charging and discharging instruction.
Specifically, as shown in fig. 2, the container electrical system 1 may include a transformer 1-1, a low voltage distribution cabinet 1-2, a first bi-directional inverter 1-3, a second bi-directional inverter 1-4, and a main control cabinet 1-5. The transformer 1-1, the low-voltage power distribution cabinet 1-2, the first bidirectional inverter 1-3 and the second bidirectional inverter 1-4 are connected in sequence. The first bidirectional inverter 1-3 and the second bidirectional inverter 1-4 are controlled by the main control cabinet 1-5.
The transformer 1-1 is used to realize the conversion of the mains supply (e.g. 10kV or 6kV supply voltage) with a preset voltage (e.g. 400V).
It is easily understood that the first and second bidirectional inverters 1-3 and 1-4 are 2 bidirectional inverters, and the operation modes of the bidirectional inverters include a charging mode and an inverting mode. And in the charging mode, the bidirectional inverter transmits the electric energy from the transformer to the energy storage battery system, and in the inverting mode, the bidirectional inverter transmits the electric energy from the energy storage battery system to the transformer. Therefore, when the first bidirectional inverter 1-3 and the second bidirectional inverter 1-4 are in the charging mode, the energy storage battery system 3 is in the charging state, and when the first bidirectional inverter 1-3 and the second bidirectional inverter 1-4 are in the inverting mode, the energy storage battery system 3 is in the discharging state.
The low-voltage power distribution cabinet 1-2 is connected with the energy storage control system 2, when the energy storage battery system 3 is in a charging state, the low-voltage power distribution cabinet 1-2 outputs low-voltage alternating current, and the low-voltage power distribution cabinet 1-2 provides electric energy for the energy storage control system 2.
The main control cabinet 1-5 is used for receiving a charging and discharging command from a power grid or a dispatching center to control the working modes of the first bidirectional inverter 1-3 and the second bidirectional inverter 1-4.
In the present embodiment, the energy storage control system 2 includes an air cooling device, a liquid cooling device, and a Battery Management System (BMS).
In this embodiment, the air cooling device includes air conditioner and air-cooled pipeline, and the air conditioner passes through the air-cooled pipeline and supplies air to energy storage battery system 3, and air-cooled pipeline lateral wall is provided with a plurality of pipeline openings, and each pipeline opening arranges the interval department at adjacent battery module.
In some embodiments, as shown in fig. 2 and 3, the air cooling device includes an air conditioner 2-1 and an air cooling duct a. When the air cooling device operates, air output by the air conditioner 2-1 is sent to the energy storage battery system 3 through the air cooling pipeline A.
In some embodiments, the air-cooled duct includes a main duct arranged above the energy storage battery system 3 and a branch duct (also referred to as an air-cooled outlet duct) provided at the interval of all adjacent battery modules. The main pipe is used for receiving wind (for example, cold wind equal to a preset temperature) output by the air conditioner 2-1, and the wind in the main pipe enters the branch pipe when flowing through the inlet of the branch pipe. Taking a set of adjacent battery modules as shown in fig. 3 as an example, the air-cooling duct a includes a main duct A1 and branch ducts A2 provided at intervals of the adjacent battery modules.
In some embodiments, as shown in fig. 2, the air cooling device further includes a first cooling switch 2-2. When the first cooling switch 2-2 is closed, the air cooling device works, and when the first cooling switch 2-2 is opened, the air cooling device stops working. The first cooling switch 2-2 is turned on and off by a Battery Management System (BMS) 2-3.
In some embodiments, the air cooling device further includes air-cooling duct inlet valves provided at inlets of the respective branch ducts. Therefore, stable operation of air cooling can be ensured, and the air cooling device is convenient to overhaul in case of failure. As shown in fig. 3, the air-cooling duct inlet valve 2-15 is provided at the inlet of the branch duct A2, and the air of the main duct A1 enters the branch duct A2 when the air-cooling duct inlet valve 2-15 is turned on. The on and off of the air-cooled pipeline inlet valves 2-15 are controlled by a Battery Management System (BMS) 2-3.
In some embodiments, the lateral wall of the branch conduit is provided with a plurality of conduit openings. The air in the branch duct enters the space between the adjacent battery modules through the duct opening. Based on the number of batteries in the battery module, 2 batteries can be adopted to arrange the number of openings of one pipeline, so that the batteries can be uniformly supplied with air.
As shown in fig. 3, the lateral wall of the branch conduit A2 is provided with a plurality of conduit openings. Taking the first air-cooling duct openings 2-16 and the second air-cooling duct openings 2-17 as an example, the first air-cooling duct openings 2-16 and the second air-cooling duct openings 2-17 are 2 duct openings on the side wall of the branch duct, and the air in the branch duct A2 enters the space between the adjacent first battery module 3-1 and second battery module 3-2 through the first air-cooling duct openings 2-16 and the second air-cooling duct openings 2-17. The air passing through the first air-cooled duct openings 2-16 is used for dissipating heat of the first battery module 3-1, and the air passing through the second air-cooled duct openings 2-17 is used for dissipating heat of the second battery module 3-2.
In some embodiments, the air cooling device further comprises a first sensor disposed on the inner wall of the air cooling duct between the adjacent duct openings, and the number of the first sensors may be plural. The first sensor is used for collecting information such as flow velocity information, pressure information and the like of gas in the air cooling pipeline. The first sensor is connected to a Battery Management System (BMS) 2-3 of the energy storage control system 2.
As shown in fig. 3, taking 2 first sensors as an example, the first air-cooled duct sensors 2-18 and the second air-cooled duct sensors 2-19 are respectively used for collecting flow rate information, pressure information, and the like of gas in the air-cooled ducts at corresponding positions, and sending the collected information to the Battery Management System (BMS) 2-3.
In some embodiments, the energy storage control system 2 is configured to obtain the collected information of the first sensor to control the operation of the air conditioner. Specifically, a Battery Management System (BMS) 2-3 acquires the collected information of the first sensor, and controls the air conditioner 2-1 and the air-cooled duct inlet valve 2-15 based on the collected information of the first sensor.
In some embodiments, the liquid cooling device includes a liquid cooling switch. As shown in fig. 2, the liquid cooling apparatus includes a second cooling switch 2-4 (also called a liquid cooling switch) connected to a Battery Management System (BMS) 2-3. The on/off of the second cooling switch 2-4 is controlled by a Battery Management System (BMS) 2-3. When the second cooling switch 2-4 is closed, the liquid cooling device works, and when the second cooling switch 2-4 is opened, the liquid cooling device stops working.
In some embodiments, as shown in fig. 2, the liquid cooling apparatus further comprises a liquid cooling pump 2-5, a liquid cooling pipe inlet valve 2-6, a liquid cooling medium storage tank 2-7, and a liquid cooling pipe outlet valve 2-8 connected in series. The liquid-cooled pump 2-5 is used for providing liquid with set temperature. The liquid cooling pipeline inlet valve 2-6 is used for controlling liquid in the liquid cooling pump 2-5 to enter the liquid cooling medium storage tank 2-7. The liquid coolant storage tank 2-7 is used to store liquid from the liquid coolant pump 2-5. And the liquid cooling pipeline outlet valve 2-8 is used for controlling the liquid in the liquid cooling medium storage tank 2-7 to enter the liquid cooling pipeline. Wherein the liquid can be selected from liquid media with larger specific heat capacity and thermal conductivity.
In this embodiment, the liquid cooling pipeline includes first liquid cooling pipeline, second liquid cooling pipeline to and the S type return bend of connecting first liquid cooling pipeline, second liquid cooling pipeline, S type return bend is arranged in the back of battery module.
Wherein first liquid cooling pipeline is connected with liquid cooling pipeline outlet valve, and the liquid cooling medium storage jar that also promptly is connected with first liquid cooling pipeline, and liquid cooling pipeline outlet valve sets up on first liquid cooling pipeline. The second liquid cooling pipeline is connected with an inlet of the liquid cooling pump. The back of each battery module is provided with an S-shaped bent pipe. Wherein every section battery of each battery module all has the liquid cooling pipeline, has increased heat transfer area, compares with the perpendicular mode from top to bottom of traditional single tube, has reduced pipeline quantity and material loss, saves the cost.
In some embodiments, as shown in fig. 3, for example, one battery module, the liquid-cooled pipes include a first liquid-cooled pipe B, a second liquid-cooled pipe C, and an S-shaped bent pipe D disposed at the back of the first battery module 3-1. Liquid from the liquid cooling medium storage tank 2-7 enters the S-shaped bent pipe D through the first liquid cooling pipeline B to dissipate heat of the first battery module 3-1 and then is sent back to the liquid cooling pump 2-5 through the second liquid cooling pipeline C.
In some embodiments, the liquid cooling device further includes a second sensor disposed on an inner wall of the S-bend, and the number of the second sensor may be plural. The second sensor is used for collecting the flow velocity information, the pressure information and other collection information of the liquid in the liquid cooling pipeline. The second sensor is connected to a Battery Management System (BMS) 2-3 of the energy storage control system 2.
As shown in fig. 3, taking 4 second sensors as an example, the inner wall of the S-shaped bent pipe D is provided with a first liquid cooling pipeline sensor 2-11, a second liquid cooling pipeline sensor 2-12, a third liquid cooling pipeline sensor 2-13 and a fourth liquid cooling pipeline sensor 2-14. The first liquid cooling pipeline sensor 2-11, the second liquid cooling pipeline sensor 2-12, the third liquid cooling pipeline sensor 2-13 and the fourth liquid cooling pipeline sensor 2-14 are respectively used for acquiring flow rate information, pressure information and the like of liquid in the liquid cooling pipeline at the corresponding positions and sending the acquired information to a Battery Management System (BMS) 2-3.
In some embodiments, the energy storage control system 2 is further configured to obtain information collected by a second sensor to control the state of the liquid cooled conduit outlet valve. Specifically, the Battery Management System (BMS) 2-3 acquires the acquisition information of the second sensor, and controls the outlet valve of the liquid cooling pipe based on the acquisition information of the second sensor.
In some embodiments, the liquid cooling apparatus further comprises a bend inlet valve disposed at an inlet of the S-bend and a bend outlet valve disposed at an outlet of the S-bend. The inlet valve of the bent pipe is used for controlling the liquid of the first liquid cooling pipeline to enter the S-shaped bent pipe. And the outlet valve of the elbow is used for controlling the liquid of the S-shaped elbow to enter the second liquid cooling pipeline. Therefore, stable operation of liquid cooling can be ensured, and maintenance is convenient during failure. As shown in fig. 3, the inlet of the S-shaped bent pipe D disposed at the back of the first battery module 3-1 is provided with a first bent pipe inlet valve 2-9, and the outlet of the S-shaped bent pipe D is provided with a first bent pipe outlet valve 2-10.
In this embodiment, the energy storage control system 2 is configured to obtain temperature information of the energy storage battery system 3 to determine whether the energy storage battery system 3 is normally charged and discharged, and if so, the air cooling device is utilized to dissipate heat of the energy storage battery system 3, and if not, the air cooling device and the liquid cooling device are utilized to dissipate heat of the energy storage battery system 3.
In some embodiments, the energy storage control system 2 is configured to obtain voltage information of the energy storage battery system 3, and combine the voltage information and the temperature information to determine whether the energy storage battery system 3 is normally charged or discharged.
In some embodiments, the energy storage control system 2 is further configured to utilize the liquid cooling device to dissipate heat of the energy storage battery system 3 if the energy storage battery system 3 is charged or discharged normally and the air cooling device is abnormal. The reasons for the abnormality of the air cooling device include, but are not limited to, power loss, insufficient refrigerant, sensor damage, etc. And a Battery Management System (BMS) 2-3 detects the state signal of the air cooling device in real time, and if the state signal belongs to the fault signal, the air cooling device is shut down and the liquid cooling device is started.
In some embodiments, if both the air cooling device and the liquid cooling device are abnormal, the energy storage battery thermal management system needs to be repaired.
In this embodiment, the energy storage control system 2 controls the on/off of the liquid cooling switch based on the condition of the energy storage battery system 3. Specifically, when the air cooling device only needs to operate, the energy storage control system 2 controls the liquid cooling switch to be turned off, and when the air cooling device needs to operate, the energy storage control system 2 controls the liquid cooling switch to be turned on.
In some embodiments, the condition of the energy storage battery system 3 includes whether the temperature information is in a normal range.
In other embodiments, the condition of the energy storage battery system 3 includes whether the temperature information and the voltage information are in normal ranges, respectively.
In the present embodiment, the energy storage battery system 3 is used for storing electric energy in a charging state and providing electric energy to the energy storage control system 2 and the container electrical system 1 in a discharging state.
In the present embodiment, the energy storage battery system 3 includes a plurality of battery modules. As shown in fig. 3, the energy storage battery system 3 includes 10 battery modules. Wherein the number of the battery modules in fig. 3 is merely illustrative.
In this embodiment, the energy storage battery system 3 further includes a plurality of battery module sensors. Each battery module is provided with a corresponding battery module sensor. As shown in fig. 3, the energy storage battery system 3 includes 10 battery module sensors.
Each battery module sensor is used for gathering the temperature information and the voltage information of corresponding battery module. As shown in fig. 3, taking the first battery module 3-1 and the second battery module 3-2 as an example, the first battery module 3-1 is provided with a first battery module sensor 3-3. The second battery module 3-2 is provided with a second battery module sensor 3-4. The first battery module sensor 3-3 and the second battery module sensor 3-4 transmit the collected temperature information and voltage information of the first battery module 3-1 and the second battery module 3-2 to a Battery Management System (BMS) 2-3 for judgment and monitoring.
With reference to fig. 2 and 3, the thermal management process of the energy storage battery thermal management system is as follows:
a. the normal air-cooling device operation process (i.e. air-cooling mode operation process) of the energy storage battery system 3 is as follows:
if the environmental temperature in the prefabricated cabin where the energy storage battery thermal management system is located is proper, and each battery module in the energy storage battery system 3 is charged and discharged normally, a Battery Management System (BMS) 2-3 acquires temperature information and voltage information of the battery module, which are acquired by all battery module sensors (such as a first battery module sensor 3-3, a second battery module sensor 3-4 and the like) in the energy storage battery system 3, judges whether the battery module has internal short circuit and other fault conditions based on the voltage information and a voltage threshold value, and if the battery temperature (namely the temperature information), the battery voltage (voltage information) and other related parameters are in a normal range, closes a liquid cooling device, disconnects a second cooling switch 2-4, and closes a liquid cooling pipeline inlet valve 2-6 and a liquid cooling pipeline outlet valve 2-8;
and 2-3, starting the air cooling device to operate by a Battery Management System (BMS), closing the first cooling switch 2-2, enabling the air conditioner 2-1 to operate in an electrified mode, and uniformly radiating heat of each battery module along the air cooling pipeline A according to the set temperature. Referring to fig. 3, air is supplied and cooled between a first battery module 3-1 and a second battery module 3-2, and a Battery Management System (BMS) 2-3 controls to open an air-cooled duct inlet valve 2-15 to perform a heat dissipation operation on the battery modules at both sides through respective duct openings (e.g., a first air-cooled duct opening 2-16, a second air-cooled duct opening 2-17, etc.);
in the process of heat dissipation operation, feedback signals (namely, acquisition information of the first sensor) of the first air-cooled pipeline sensor 2-18 and the second air-cooled pipeline sensor 2-19 are acquired, the Battery Management System (BMS) 2-3 monitors information such as air flow rate and pipeline pressure in real time, when the acquisition information is in a normal range, the air cooling device normally operates, the air cooling device carries out air supply operation according to a set value of the Battery Management System (BMS) 2-3, when the acquisition information of the first sensor is in an abnormal range, if the air flow rate and the pipeline pressure signal fed back by the first air-cooled pipeline sensor 2-18 and the second air-cooled pipeline sensor 2-19 are abnormal, the Battery Management System (BMS) 2-3 controls to disconnect the air-cooled pipeline inlet valve 2-15, no air flows between the first battery module 3-1 and the second battery module 3-2, maintenance and inspection of the pipeline are facilitated, the interval air supply operation of other battery modules is not influenced, and stable operation of the air cooling device is ensured.
b. The liquid cooling device operation process (namely the liquid cooling mode operation process) when the energy storage battery system 3 is normal:
if the environmental temperature in the prefabricated cabin where the energy storage battery thermal management system is located is proper, and each battery module in the energy storage battery system 3 is charged and discharged normally, the Battery Management System (BMS) 2-3 acquires temperature information and voltage information of the battery module, which are acquired by all battery module sensors (such as the first battery module sensor 3-3, the second battery module sensor 3-4 and the like) in the energy storage battery system 3, judges whether the battery module has internal short circuit and other fault conditions based on the voltage information and a voltage threshold value, if the battery temperature, the battery voltage and other related parameters are in a normal range, and the air conditioner 2-1 cannot work due to faults, the Battery Management System (BMS) 2-3 starts a liquid cooling device to run, disconnects the first cooling switch 2-2, closes the second cooling switch 2-4, opens the liquid cooling pipeline inlet valve 2-6 and the liquid cooling pipeline outlet valve 2-8, starts the liquid cooling pump 2-5 to circulate the liquid cooling medium stored in the liquid cooling medium 2-7, and uniformly cools each battery module along the first liquid cooling pipeline and the S-type bent pipe according to a set flow rate;
referring to fig. 3, taking a first battery module 3-1 as an example, a liquid medium is cooled at the back of a battery of the first battery module 3-1, a first elbow inlet valve 2-9 and a first elbow outlet valve 2-10 are opened, the liquid medium (liquid for short) exchanges heat with the battery along with an S-shaped elbow, a Battery Management System (BMS) 2-3 monitors information such as the flow rate and the pipe pressure of the liquid medium in real time according to feedback signals (i.e., the acquisition information of a second sensor) of a first liquid cooling pipe sensor 2-11, a second liquid cooling pipe sensor 2-12, a third liquid cooling pipe sensor 2-13 and a fourth liquid cooling pipe sensor 2-14, and when the acquisition information of the second sensor is within a normal range, a liquid cooling device operates normally, and carrying out heat dissipation operation according to a set value of a Battery Management System (BMS) 2-3, when the acquisition information of the second sensor is in an abnormal range, if the flow rate of a liquid medium fed back by the first liquid cooling pipeline sensor 2-11, the second liquid cooling pipeline sensor 2-12, the third liquid cooling pipeline sensor 2-13 and the fourth liquid cooling pipeline sensor 2-14 is abnormal with a pipeline pressure signal, the Battery Management System (BMS) 2-3 controls and disconnects the first elbow inlet valve 2-9 and the first elbow outlet valve 2-10, no liquid medium flows in an S-shaped elbow at the first battery module 3-1, so that the maintenance and the inspection of the pipeline are facilitated, the heat dissipation operation of a liquid cooling device of other battery modules is not influenced, and the stable operation of the liquid cooling device of the other battery modules is ensured.
c. And (3) a mixed cooling process (namely a coupling operation process) of the abnormal air-time cooling device and the liquid cooling device of the energy storage battery system:
if the environmental temperature in the prefabricated cabin where the energy storage battery thermal management system is located is higher than the normal operation temperature (for example, the deviation is more than 5 ℃), each battery module is charged and discharged normally, the Battery Management System (BMS) 2-3 acquires temperature information and voltage information of the battery module collected by all battery module sensors (for example, the first battery module sensor 3-3, the second battery module sensor 3-4 and the like) in the energy storage battery system 3, if the temperature information (namely, the battery temperature) is higher than the normal operation temperature (for example, the deviation is more than 5 ℃), the Battery Management System (BMS) 2-3 starts an air cooling device and a liquid cooling device to run in a mixed mode, closes the first cooling switch 2-2 and the second cooling switch 2-4, electrically runs the air conditioner 2-1 and the liquid cooling pump 2-5, opens the liquid cooling pipeline inlet valve 2-6 and the liquid cooling pipeline outlet valve 2-8, circulates liquid cooling media stored in the liquid cooling medium storage tank 2-7, and uniformly cools the battery module along the air cooling pipeline A and the first liquid cooling pipeline B according to the set temperature and the set flow rate;
referring to fig. 3, air supply cooling is performed between the first battery module 3-1 and the second battery module 3-2, and liquid medium cooling is performed on the backs of the batteries of the first battery module 3-1 and the second battery module 3-2. Opening air-cooled pipeline inlet valves 2-15, and performing heat dissipation operation on the battery modules on the two sides through pipeline openings (such as first air-cooled pipeline openings 2-16, second air-cooled pipeline openings 2-17 and the like); taking the first battery module 3-1 as an example, opening a first elbow inlet valve 2-9 and a first elbow outlet valve 2-10, and performing heat exchange operation on the battery by a valve liquid medium along with an S-shaped elbow;
according to feedback signals of the first air-cooled pipeline sensors 2-18 and the second air-cooled pipeline sensors 2-19, a Battery Management System (BMS) 2-3 monitors information such as air flow rate and pipeline pressure in real time; according to feedback signals of the first liquid cooling pipeline sensor 2-11, the second liquid cooling pipeline sensor 2-12, the third liquid cooling pipeline sensor 2-13 and the fourth liquid cooling pipeline sensor 2-14, the Battery Management System (BMS) 2-3 monitors information such as liquid medium flow rate and pipeline pressure in real time, when the acquisition information of the first sensor is in a normal range, the air cooling device carries out air supply operation according to a set value of the Battery Management System (BMS) 2-3, when the acquisition information of the first sensor is in an abnormal range, if the air flow rate and the pipeline pressure signal fed back by the first air cooling pipeline sensor 2-18 and the second air cooling pipeline sensor 2-19 are abnormal, the Battery Management System (BMS) 2-3 controls to cut off the air cooling pipeline inlet valve 2-15, no air flows between the first battery module 3-1 and the second battery module 3-2, the maintenance and the inspection of the pipeline are facilitated, and the interval air supply operation of other battery modules is not influenced; when the acquisition information of the second sensor is in a normal range, the liquid cooling device normally operates, heat dissipation operation is carried out according to a set value of a Battery Management System (BMS) 2-3, and when the acquisition information of the second sensor is in an abnormal range, if the flow rate of a liquid medium fed back by the first liquid cooling pipeline sensor 2-11, the second liquid cooling pipeline sensor 2-12, the third liquid cooling pipeline sensor 2-13 and the fourth liquid cooling pipeline sensor 2-14 is abnormal with a pipeline pressure signal, the Battery Management System (BMS) 2-3 controls and disconnects the first elbow inlet valve 2-9 and the first elbow outlet valve 2-10, and an S-shaped elbow at the first battery module 3-1 does not have the liquid medium to flow, so that the maintenance and the inspection of the pipeline are facilitated, the heat dissipation operation of other battery module liquid cooling devices is not influenced, and the mixed stable operation of the air cooling device and the liquid cooling device is ensured.
The energy storage battery thermal management system adopting the hybrid cooling mode, which is provided by the embodiment of the disclosure, is a container electrical system and is used for controlling the energy storage battery system to charge and discharge based on the received charge and discharge instruction; the energy storage battery system comprises a plurality of battery modules; energy storage control system includes air cooling device and liquid cooling device, energy storage control system is used for acquireing the temperature information of energy storage battery system, in order to confirm whether normal charge-discharge of energy storage battery system, if normal then utilize the air cooling device to dispel the heat to the energy storage battery system, if unusual, then utilize air cooling device and liquid cooling device to dispel the heat to the energy storage battery system, wherein, the air cooling device includes air conditioner and air-cooled pipeline, the air conditioner passes through the air-cooled pipeline and supplies air to the energy storage battery system, air-cooled pipeline lateral wall is provided with a plurality of pipeline openings, each pipeline opening arranges the interval department at adjacent battery module. Under this condition, air cooling device and liquid cooling device mix collocation, the heat management effect has been optimized, in addition, the air cooling device during operation is through air-cooled pipeline to the air supply of energy storage battery system, and set up the pipeline opening at the air-cooled pipeline lateral wall of the interval department of adjacent battery module, the air-cooled pipeline design of air-cooled mode has been optimized, through air-cooled pipeline air supply to each battery module interval, the inhomogeneous condition of traditional air conditioner air-cooled temperature has been improved, thereby provide the uniform temperature flow field for the battery module, the heat management effect has further been improved, and the structure of energy storage battery heat management system has been simplified, the problem of not compromising simple structure and heat management effect among the current battery heat management technique has been solved. In addition, according to the system, when the external liquid cooling medium is connected by a simple liquid cooling pipeline, the pressure and the flow speed are not controlled, the pipeline leakage is easily caused, the storage mode of the liquid cooling mode is improved, the safe storage of the liquid cooling medium is realized through the liquid medium storage tank, the flow speed and the pressure of the liquid cooling medium are ensured to be stable and controllable through the liquid cooling pump, the accurate positioning of a fault pipeline is realized by monitoring the system operation condition in real time through the sensor through the liquid medium storage tank, the liquid cooling pump, the inlet and outlet valve and the sensor, the shutdown treatment of the fault pipeline is realized through the inlet and outlet valve, the heat dissipation operation of the liquid cooling system of other battery modules is not influenced, the leakage phenomenon in the liquid cooling mode is avoided, and the S-type liquid cooling pipeline is adopted to increase the heat exchange efficiency of the battery module; the system disclosed by the invention improves the air cooling and liquid cooling coupling operation mode, formulates the mode of daily air cooling operation by referring to the battery operation temperature, and further reduces the overall cost of continuous and stable operation of the heat management system of the energy storage system by the mixed operation of air cooling and liquid cooling after the temperature rises. And reach stable battery module temperature field, the heat that the battery produced is discharged fast, avoids heat to gather and the operation temperature difference phenomenon such as great, protects energy storage battery performance and life-span, reduces the possibility of the incident that arouses because of battery thermal runaway. In addition, even if the air cooling, the liquid cooling, the phase change material cooling and the heat pipe cooling are combined in pairs like the system disclosed by the invention aiming at the current stage of battery heat management, the combined system has the advantages of complex structure, high material price, no universality and high overall operation cost.
Based on the energy storage battery thermal management system adopting the hybrid cooling mode provided by the embodiment, the disclosure also provides an energy storage battery thermal management method adopting the hybrid cooling mode.
Fig. 4 is a schematic flow chart of a thermal management method of an energy storage battery with a hybrid cooling method according to an embodiment of the present disclosure. As shown in fig. 4, the method for thermally managing the energy storage battery in the hybrid cooling mode includes the following steps:
step S11, receiving a charge and discharge instruction and controlling an energy storage battery system to charge and discharge;
step S12, acquiring temperature information of an energy storage battery system in the charging and discharging process;
step S13, determining whether the energy storage battery system is charged and discharged normally based on the temperature information;
and S14, if the energy storage battery system is normal, the air cooling device is used for radiating the energy storage battery system, and if the energy storage battery system is abnormal, the air cooling device and the liquid cooling device are used for radiating the energy storage battery system.
Optionally, in step S13, voltage information of the energy storage battery system is further obtained, and whether the energy storage battery system is charged or discharged normally is determined by combining the voltage information and the temperature information.
Optionally, in step S14, when the air cooling device and/or the liquid cooling device operate, the flow rate information and the pressure information in the corresponding pipeline are collected, and the operation of the air cooling device and the liquid cooling device is controlled based on the flow rate information and the pressure information.
Optionally, in step S14, if the energy storage battery system 3 is normally charged and discharged and the air cooling device is abnormal, the liquid cooling device is used to dissipate heat of the energy storage battery system 3.
It should be noted that the foregoing explanation on the embodiment of the energy storage battery thermal management system with a hybrid cooling method is also applicable to the energy storage battery thermal management method with a hybrid cooling method of this embodiment, and details are not repeated here.
The energy storage battery thermal management method adopting the hybrid cooling mode provided by the embodiment of the disclosure receives a charge and discharge instruction and controls an energy storage battery system to charge and discharge; acquiring temperature information of an energy storage battery system in the charging and discharging process; determining whether the energy storage battery system is charged and discharged normally based on the temperature information; and if the energy storage battery system is normal, the air cooling device is used for dissipating heat of the energy storage battery system, and if the energy storage battery system is abnormal, the air cooling device and the liquid cooling device are used for dissipating heat of the energy storage battery system. Under this condition, air cooling device and liquid cooling device mix collocation, the heat management effect has been optimized, in addition, the air cooling device during operation is through air-cooled pipeline to the air supply of energy storage battery system, and set up the pipeline opening at the air-cooled pipeline lateral wall of the interval department of adjacent battery module, the air-cooled pipeline design of air-cooled mode has been optimized, through air-cooled pipeline air supply to each battery module interval, the inhomogeneous condition of traditional air conditioner air-cooled temperature has been improved, thereby provide the uniform temperature flow field for the battery module, the heat management effect has further been improved, and the structure of energy storage battery heat management system has been simplified, the problem of not compromising simple structure and heat management effect among the current battery heat management technique has been solved. In addition, according to the system, when the external liquid cooling medium is connected by a simple liquid cooling pipeline, the pressure and the flow speed are not controlled, the pipeline leakage is easily caused, the storage mode of the liquid cooling mode is improved, the safe storage of the liquid cooling medium is realized through the liquid medium storage tank, the flow speed and the pressure of the liquid cooling medium are ensured to be stable and controllable through the liquid cooling pump, the accurate positioning of a fault pipeline is realized by monitoring the system operation condition in real time through the sensor through the liquid medium storage tank, the liquid cooling pump, the inlet and outlet valve and the sensor, the shutdown treatment of the fault pipeline is realized through the inlet and outlet valve, the heat dissipation operation of the liquid cooling system of other battery modules is not influenced, the leakage phenomenon in the liquid cooling mode is avoided, and the S-type liquid cooling pipeline is adopted to increase the heat exchange efficiency of the battery module; according to the system, the air cooling and liquid cooling coupling operation mode is improved, the mode of daily air cooling operation is formulated by referring to the operation temperature of the battery, and the air cooling and liquid cooling mixed operation mode after the temperature rises, so that the overall cost of the continuous and stable operation of the heat management system of the energy storage system is further reduced. And reach stable battery module temperature field, the heat that the battery produced is discharged fast, avoids heat to gather and the operation temperature difference phenomenon such as great, protects energy storage battery performance and life-span, reduces the possibility of the incident that arouses because of battery thermal runaway.
It should be understood that the components shown in the present disclosure, the connections and relationships of the components, and the functions of the components, are meant to be examples only, and are not intended to limit implementations of the present disclosure described and/or claimed in the present disclosure. Steps may be reordered, added, or deleted using the various forms of flow shown above. For example, the steps described in the present disclosure may be executed in parallel, sequentially, or in different orders, and the present disclosure is not limited thereto as long as the desired results of the technical solutions of the present disclosure can be achieved.
The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.
Claims (10)
1. The energy storage battery thermal management system adopting the hybrid cooling mode is characterized by comprising a container electrical system, an energy storage control system and an energy storage battery system;
the container electrical system is used for controlling the energy storage battery system to charge and discharge based on the received charge and discharge instruction;
the energy storage battery system comprises a plurality of battery modules;
energy storage control system includes air cooling device and liquid cooling device, energy storage control system is used for acquireing the temperature information of energy storage battery system is in order to confirm whether normal charge-discharge of energy storage battery system, if normal then utilize the air cooling device right the energy storage battery system dispels the heat, if unusual, then utilize air cooling device and liquid cooling device right the energy storage battery system dispels the heat, and wherein, the air cooling device includes air conditioner and forced air cooling pipeline, the air conditioner pass through the forced air cooling pipeline to the air supply of energy storage battery system, forced air cooling pipeline lateral wall is provided with a plurality of pipe opening, and each pipe opening arranges the interval department at adjacent battery module.
2. The hybrid cooling type energy storage battery thermal management system according to claim 1, wherein the air cooling device further comprises a first sensor disposed on an inner wall of the air cooling duct between adjacent duct openings, and the energy storage control system is further configured to acquire information collected by the first sensor to control the operation of the air conditioner.
3. The hybrid cooling type energy storage battery thermal management system according to claim 2, wherein the liquid cooling device comprises a first liquid cooling pipeline, a second liquid cooling pipeline, and an S-shaped bent pipe connecting the first liquid cooling pipeline and the second liquid cooling pipeline, and the S-shaped bent pipe is arranged at the back of the battery module.
4. The hybrid cooling energy storage battery thermal management system of claim 3, wherein the liquid cooling device further comprises a liquid cooling medium storage tank and a liquid cooling conduit outlet valve, the liquid cooling medium storage tank being connected to the first liquid cooling conduit, the liquid cooling conduit outlet valve being disposed on the first liquid cooling conduit.
5. The hybrid cooling type energy storage battery thermal management system according to claim 4, wherein the liquid cooling device further comprises a second sensor disposed on an inner wall of the S-shaped elbow, and the energy storage control system is further configured to obtain information collected by the second sensor to control a state of the outlet valve of the liquid cooling pipe.
6. The hybrid cooling type energy storage battery thermal management system according to claim 1 or 5, wherein the liquid cooling device further comprises a liquid cooling switch, and the energy storage control system controls the on/off of the liquid cooling switch based on the condition of the energy storage battery system.
7. The hybrid cooling type energy storage battery thermal management system according to claim 1, wherein the energy storage control system is further configured to use the liquid cooling device to dissipate heat of the energy storage battery system if the energy storage battery system is charged or discharged normally and the air cooling device is abnormal.
8. The energy storage battery thermal management system with the hybrid cooling mode as claimed in claim 1, wherein the energy storage control system is configured to obtain voltage information of the energy storage battery system, and determine whether the energy storage battery system is normally charged or discharged by combining the voltage information and the temperature information.
9. An energy storage battery thermal management method based on the energy storage battery thermal management system with the hybrid cooling mode according to any one of claims 1 to 8, characterized by comprising the following steps:
receiving a charge-discharge instruction and controlling an energy storage battery system to charge and discharge;
acquiring temperature information of the energy storage battery system in the charging and discharging process;
determining whether the energy storage battery system is charged and discharged normally based on the temperature information;
and if the energy storage battery system is normal, the air cooling device is used for dissipating heat of the energy storage battery system, and if the energy storage battery system is abnormal, the air cooling device and the liquid cooling device are used for dissipating heat of the energy storage battery system.
10. The method for thermal management of a hybrid cooling energy storage battery of claim 9, further comprising:
and when the air cooling device and/or the liquid cooling device works, collecting flow rate information and pressure information in the corresponding pipeline, and controlling the operation of the air cooling device and the liquid cooling device based on the flow rate information and the pressure information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211134874.7A CN115411412A (en) | 2022-09-19 | 2022-09-19 | Energy storage battery thermal management system and method adopting hybrid cooling mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211134874.7A CN115411412A (en) | 2022-09-19 | 2022-09-19 | Energy storage battery thermal management system and method adopting hybrid cooling mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115411412A true CN115411412A (en) | 2022-11-29 |
Family
ID=84165786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211134874.7A Pending CN115411412A (en) | 2022-09-19 | 2022-09-19 | Energy storage battery thermal management system and method adopting hybrid cooling mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115411412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117525684A (en) * | 2023-12-29 | 2024-02-06 | 山东科技大学 | Battery thermal management system |
-
2022
- 2022-09-19 CN CN202211134874.7A patent/CN115411412A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117525684A (en) * | 2023-12-29 | 2024-02-06 | 山东科技大学 | Battery thermal management system |
| CN117525684B (en) * | 2023-12-29 | 2024-04-05 | 山东科技大学 | Battery thermal management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109860950B (en) | Combined type electric automobile power battery heat management device | |
| CN102439756B (en) | Battery thermal management system | |
| CN108448198B (en) | Split type battery thermal management system, method of using the same, and rapid charging system | |
| TW201940360A (en) | Battery temperature control device and method, controller, storage medium, and battery charging and swapping station | |
| CN209472019U (en) | Energy storage device | |
| EP2963768B1 (en) | Method of monitoring power provision of a generator set | |
| CN218513530U (en) | Battery thermal management system of container type energy storage system | |
| CN115411412A (en) | Energy storage battery thermal management system and method adopting hybrid cooling mode | |
| CN110492026A (en) | Lithium ion battery mould group thermal balance management system and its application method | |
| CN110476296B (en) | Power supply system | |
| CN104767398A (en) | High-integration converter device | |
| US7566989B2 (en) | Back-up power system for a cooling system | |
| CN115000577A (en) | Energy storage cabinet temperature control system and temperature control method | |
| CN106025427B (en) | Temperature adjusting system and method for battery pack | |
| CN107681226B (en) | Temperature control component, temperature control pipeline and thermal management system of lithium battery pack | |
| CN218274761U (en) | Loop type heat management system | |
| CN217545366U (en) | Multi-stage cooling structure for battery room of energy storage power station | |
| CN215154005U (en) | Charging cooling device | |
| CN114784402A (en) | Environmental control system applied to liquid cooling energy storage system | |
| CN211655308U (en) | Portable laser heat dissipation device | |
| CN211376877U (en) | Liquid pipeline for energy storage charging pile | |
| CN219626744U (en) | Battery cooling device and system for power-changing heavy truck | |
| CN217719755U (en) | Lithium battery module heat management device | |
| CN219583971U (en) | Cooling device for charging gun | |
| CN219873702U (en) | Energy storage water cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |