Energy storage system and energy storage power station

Abstract

The embodiment of the invention provides an energy storage system and an energy storage power station, and the system comprises a power supply unit which comprises at least one path of original vehicle battery pack for supplying power to an external load, and each path of original vehicle battery pack is configured with battery configuration information; the charging and discharging control unit is used for carrying out charging and discharging management on the original vehicle battery pack; the charging and discharging control unit is configured with first equipment configuration information; the power supply unit and the charging and discharging control unit add battery configuration information and first equipment configuration information to a total configuration table to establish communication connection with the energy management unit, so that the energy management unit collects corresponding operation parameters according to preset configuration instruction items in the total configuration table and sends a control instruction; and the charging and discharging control unit performs charging and discharging. A user can flexibly add or delete an original vehicle battery pack or charging and discharging control equipment according to requirements, and bottom layer logic does not need to be developed or modified again.

Description

Technical Field

[0001] The present disclosure relates to the field of new energy technologies, and in particular to energy storage systems and energy storage power stations. Background Art

[0002] With the widespread adoption of renewable energy and the diversification of grid demands, energy storage systems are playing an increasingly important role in modern power networks. In recent years, an innovative approach has been to utilize the original battery packs in electric vehicles (EVs) as energy storage units. This approach not only improves resource utilization but also reduces costs. However, integrating original battery packs into energy storage systems presents several technical and operational challenges. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide an energy storage system and an energy storage power station to solve the problems in the related art.

[0004] A first aspect of the present disclosure provides an energy storage system, comprising:

[0005] A power supply unit, comprising at least one original vehicle battery pack for powering an external load, each original vehicle battery pack being configured with battery configuration information;

[0006] A charge and discharge control unit, electrically connected to the power supply unit, for managing the charge and discharge of the original vehicle battery pack; the charge and discharge control unit is configured with first device configuration information;

[0007] An energy management unit is communicatively connected to a general configuration table. The power supply unit and the charge and discharge control unit establish a communication connection with the energy management unit by adding the battery configuration information and the first device configuration information to the general configuration table, so that the energy management unit collects corresponding operating parameters and sends control instructions according to the configuration instruction items preset in the general configuration table, so that the charge and discharge control unit performs charging and discharging; wherein, the energy management unit simulates the communication environment of the actual vehicle for at least one original vehicle battery pack, so as to obtain real-time battery operating parameters from the original vehicle battery pack, and manage the charging and discharging of the original vehicle battery pack through the charge and discharge control unit based on a preset energy adjustment strategy.

[0008] In an embodiment of the first aspect, the multiple configuration instruction items include parameter acquisition items corresponding to preset types of operating parameters of the original vehicle battery pack and / or the charge and discharge control unit; wherein, the number and / or content of the configuration instruction items in the general configuration table are editable.

[0009] In an embodiment of the first aspect, a first display interface is further included, which is communicatively connected to the power supply unit and the charge and discharge unit and is used to display collected information of operating parameters read from the power supply unit and the charge and discharge control unit; wherein the collected information includes acquisition time and device connection status.

[0010] In an embodiment of the first aspect, a second display interface is further included, which is communicatively connected to the energy management unit and is used to display the operating parameters corresponding to the configuration instruction item.

[0011] In an embodiment of the first aspect, a plurality of auxiliary units are further included, each of which is configured with second device configuration information, and the auxiliary units establish a communication connection with the energy management unit by adding the second device configuration information to the total configuration table.

[0012] In an embodiment of the first aspect, the auxiliary unit includes at least one of the following: a liquid cooling unit; a fire fighting unit;

[0013] The liquid cooling unit is communicatively connected to the energy management unit based on its corresponding second device configuration information to output the operating parameters of the liquid cooling unit and receive the control instruction;

[0014] The fire protection unit is communicatively connected to the energy management unit based on its corresponding second device configuration information to output the operating parameters of the fire protection unit and receive the control instructions.

[0015] In an embodiment of the first aspect, the energy adjustment strategy includes at least one of the following:

[0016] 1) The power supply unit is charged according to the valley and flat values ​​of the local electricity price, and discharged at the peak value;

[0017] 2) When the power consumption of the power storage system is restricted by the power grid, the energy storage system is discharged according to the power requirements of the power usage scenario; and when the discharge power is greater than the load power of the external load in the power usage scenario, the reverse flow output of the energy storage system to the upstream external power grid is restricted;

[0018] 3) Based on the set demand of the set power usage scenario, limit the power supply obtained by the energy storage system from the external power grid in the power usage scenario to be lower than the difference between the set demand and the load power of the external load in the power usage scenario; and when the load power of the external load is greater than the set demand, stop charging the energy storage unit.

[0019] In an embodiment of the first aspect, the energy storage system is configured in a box; the box includes a battery compartment and an electrical compartment, and is provided with a fire protection system;

[0020] The original vehicle battery pack is stacked in the battery compartment, and the original vehicle battery pack is added or deleted in the battery compartment by adding or deleting battery configuration information in the general configuration table;

[0021] The fire protection system includes:

[0022] A fire detection and alarm assembly includes a detection unit, an alarm unit, and a fire control unit communicatively connected to the detection unit and the alarm unit; the detection unit includes a bin-level detection assembly and a battery cell-level detection assembly; the bin-level detection assembly includes a preset number of temperature fire detectors, combustible gas detectors, and smoke detectors; the battery cell-level detection assembly includes a composite fire detector for detecting combustible gas and temperature, which is set corresponding to each original vehicle battery pack;

[0023] A fire extinguishing assembly, communicatively connected to and controlled by the fire control unit, includes an exhaust unit, a fire extinguishing agent spraying assembly, and a water injection assembly; the exhaust unit connects the battery compartment to the outside world; the spraying port of the fire extinguishing assembly connects to the original vehicle battery pack; and the water outlet of the water injection assembly connects to the battery compartment;

[0024] The fire control unit responds to the first fire alarm signal from any detector in the warehouse-level detection component and the battery-level detection component to activate the alarm unit to sound an alarm; if a combustible gas fire alarm occurs, the exhaust unit is linked to perform exhaust to prevent explosion;

[0025] The fire control unit responds to the second fire alarm signal from any two detectors belonging to the same protection zone, links the fire extinguishing component to perform the fire extinguishing action after a preset delay; and after the fire extinguishing component is activated, an alarm is issued through the alarm unit;

[0026] After the fire extinguishing action is responded to, the fire control unit starts the water injection component to inject water into the battery compartment according to the temperature data detected by the compartment-level detection component or the battery cell-level detection component meeting the thermal runaway condition.

[0027] In an embodiment of the first aspect, the fire extinguishing assembly comprises:

[0028] A fire extinguishing agent spraying device, a fire extinguishing agent main pipe connected to the fire extinguishing agent spraying device, and a fire extinguishing agent branch pipe connected to the fire extinguishing agent main pipe and corresponding to each original vehicle battery pack; each fire extinguishing agent branch pipe is provided with a partition valve for controlling on / off;

[0029] The fire control unit links the fire extinguishing component to perform a fire extinguishing action, including: in response to the detector that generates the alarm being a composite fire detector, turning on the partition valve of the fire extinguishing agent branch pipe corresponding to the original vehicle battery pack of the composite fire detector to perform a fire extinguishing action on the corresponding original vehicle battery pack.

[0030] A second aspect of the present disclosure provides an energy storage power station, which includes any one of the energy storage systems described above.

[0031] The beneficial effects of the present disclosure are as follows: the communication environment of an actual vehicle is simulated for the original vehicle battery pack through the energy management unit, so that the battery pack originally designed for on-board use can operate normally in the energy storage system; and the user can flexibly add or delete the original vehicle battery pack or charge and discharge control equipment according to needs without redeveloping or modifying the underlying logic. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the communication structure of an energy storage system in one embodiment of the present disclosure is shown.

[0033] Figure 2 A schematic diagram showing information transmission between a first display interface and a second display interface in one embodiment of the present disclosure is shown.

[0034] Figure 3 Schematic diagram showing the internal structure of the box in one embodiment of the present disclosure

[0035] Figure 4 A schematic diagram of the arrangement structure of a fire protection system in one embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present disclosure through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the information disclosed in this disclosure. The present disclosure can also be implemented or applied through different specific embodiments. The details of the present disclosure can also be modified or changed according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other unless there is a conflict.

[0037] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0038] Throughout the present disclosure, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as described in the present disclosure, without conflicting requirements.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this disclosure, "a group" means two or more, unless otherwise specifically defined.

[0040] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same or similar components throughout the specification are denoted by the same reference numerals.

[0041] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0042] Although the terms first, second, etc. are used in this document to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this document, the singular forms "one", "an", and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise" and "include" indicate the presence of features, steps, operations, elements, modules, projects, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or a group of other features, steps, operations, elements, modules, projects, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0043] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification is intended to specify specific features, regions, integers, steps, operations, elements, and / or components and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0044] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current message. Unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0045] With the rapid development of the new energy vehicle industry, a large number of power batteries have entered the market due to retired vehicles. Although these batteries no longer meet vehicle performance requirements, they still have a high residual capacity (generally above 70%), making them promising for use in energy storage systems. However, existing technologies still present numerous problems and limitations in the application of original vehicle battery packs to energy storage systems. Because original vehicle battery packs come from different manufacturers and models, and the interfaces of various charging and discharging control units are not standardized, existing energy storage systems struggle to integrate compatible devices from multiple brands and types, limiting the system's versatility and flexibility.

[0046] In order to solve the above problems, an energy storage system is provided in one embodiment of the present disclosure, and the energy management unit can simulate the communication environment of an actual vehicle for at least one original vehicle battery pack, so that it can maintain a normal communication state when it is separated from the whole vehicle platform, thereby smoothly obtaining key battery operating parameters (such as SOC, SOH, voltage, temperature, etc.). Among them, the battery configuration information of different original vehicle battery packs is different. In the related art, due to the non-editability of the general configuration table, the original vehicle battery pack can only be connected according to the battery configuration information configured in the general configuration table, which makes it limited. However, in the present disclosure, different battery configuration information can be added to the general configuration table to add the corresponding original vehicle battery pack, so as to make the adaptability higher. Based on the preset configuration instruction items in the general configuration table, the energy management unit can collect the key operating parameters of the original vehicle battery pack on demand. Among them, Figure 1 The embodiment is a schematic diagram of the specific structure of the energy storage system in one embodiment of the present disclosure, which specifically includes: a power supply unit 100, a charge and discharge unit 200, a total configuration table 400 and an energy management unit 300.

[0047] The power supply unit 100 includes at least one original vehicle battery pack 110 for powering an external load, and each original vehicle battery pack 110 is configured with battery configuration information. The configuration information includes battery configuration information used to establish a communication connection between the corresponding original vehicle battery pack and the energy management unit.

[0048] Specifically, the original vehicle battery pack 110 is used in new energy vehicles. In some embodiments, the original vehicle battery pack 110 may be one or more of a ternary lithium battery, a lithium iron battery, a sodium ion battery, a lead-acid battery, a solid-state battery, and the like. The power supply unit 100 is composed of multiple original vehicle battery packs 110, which are individually packaged and assembled to form the power supply unit 100. The original vehicle battery packs 110 also include a battery management system (BMS) for information management.

[0049] In some embodiments, the original vehicle battery pack 110 may be a spare battery pack, a stock battery pack, an old battery, or even a retired battery pack (it may also be a brand new battery pack), without any disassembly and without destroying the original structure. In some embodiments, based on stricter reference standards, the battery packs with better health among the recycled old batteries or retired batteries may be screened according to the battery state of health (SoH). Preferably, a battery pack with a battery health status of more than 90% is selected. The power supply unit 100 is configured with battery configuration information corresponding to the original vehicle battery pack 110, and the battery configuration information is used to establish a communication connection between the original vehicle battery pack 110 and the energy management unit 300. In some embodiments, the battery configuration information includes a DBC file of the original vehicle battery pack 110, which is a CAN database file that defines the message format and signal mapping rules for CAN bus communication.

[0050] The charge and discharge control unit is electrically connected to the power supply unit 100 to manage the charge and discharge of the original vehicle battery pack 110 ; the charge and discharge control unit is configured with first device configuration information.

[0051] Specifically, in some embodiments, the charge and discharge control unit includes a DC-DC converter and an energy storage inverter, wherein the DC-DC converter and the energy storage inverter are both bidirectional, so as to be suitable for the charge and discharge control of the original vehicle battery pack 110. In some embodiments, the DC-DC converter corresponds one-to-one to the number of original vehicle battery packs 110, so as to connect each original vehicle battery pack 110 accordingly, thereby converting the voltage outputted from the positive and negative poles of the original vehicle battery pack 110 into DC and outputting it. The corresponding charge and discharge control unit is provided with first device configuration information, for example, the DC-DC converter and the energy storage inverter unit have corresponding first device configuration information to establish a communication connection with the energy management unit 300. In some embodiments, the first device configuration information includes the device ID, port, address and device name.

[0052] The energy management unit 300 is communicatively connected to a general configuration table 400, and the power supply unit 100 and the charge and discharge control unit establish a communication connection with the energy management unit 300 by adding the battery configuration information and the first device configuration information to the general configuration table 400, so that the energy management unit 300 collects corresponding operating parameters and sends control instructions according to the preset configuration instruction items in the general configuration table 400, so that the charge and discharge control unit performs charging and discharging; wherein, the energy management unit 300 simulates the communication environment of the actual vehicle for at least one original vehicle battery pack 110, so as to obtain real-time battery operating parameters from the original vehicle battery pack 110, so as to perform charge and discharge management of the original vehicle battery pack 110 through the charge and discharge control unit based on the preset energy adjustment strategy.

[0053] Specifically, in some embodiments, through the above-mentioned configuration information, the energy management unit 300 can collect corresponding operating parameters, such as voltage, current, temperature, SOC (state of charge), SOH (state of health) and other key data from the original vehicle battery pack 110 with which a communication connection has been established based on preset configuration instruction items.

[0054] Optionally, the multiple configuration instruction items include parameter acquisition items corresponding to preset types of operating parameters of the original vehicle battery pack 110 and / or the charge and discharge control unit; wherein, the number and / or content of the configuration instruction items in the total configuration table 400 are editable.

[0055] Specifically, the parameter acquisition item is used to obtain preset operating parameters from the original vehicle battery pack 110 and the charge and discharge control unit. Users can dynamically add, delete or modify configuration instruction items according to actual needs, thereby achieving more flexible system management. According to changes in system scale or the needs of new equipment, users can increase or decrease the number of configuration instruction items. For example, when a new original vehicle battery pack 110 is added, the corresponding battery configuration information and parameter acquisition items can be added to the total configuration table 400.

[0056] Users can also adjust the content of configuration directives based on specific application scenarios. For example, in some cases, only the battery pack's voltage and current data may be of interest; in other cases, more parameters such as temperature, SOC, and SOH need to be monitored simultaneously. By editing the content of configuration directives, users can obtain the required information in a customized manner.

[0057] In particular, in this embodiment, the energy management unit 300 also has the function of simulating an actual vehicle communication environment. Specifically, for at least one original vehicle battery pack 110, the energy management unit 300 can simulate the communication bus environment (e.g., CAN bus) of the vehicle in which it originally resides, enabling it to continue to respond to data requests and output complete battery operating parameters even after being disconnected from the vehicle platform. In some embodiments, the energy management unit 300 can be configured as a physical device with multiple Ethernet ports, connecting to external devices through the Ethernet ports and communicating with other components via a pre-defined communication protocol.

[0058] In some embodiments, after obtaining the operating parameters, the energy management unit 300 generates corresponding control instructions according to a preset energy adjustment strategy (such as peak shaving and valley filling, frequency modulation, backup power switching, etc.), and sends them to the corresponding charge and discharge control unit to drive it to achieve precise charge and discharge management of the original vehicle battery pack 110.

[0059] Optionally, the energy adjustment strategy includes at least one of the following:

[0060] 1) The power supply unit 100 is charged according to the valley and flat values ​​of the local electricity price, and discharged during the peak value.

[0061] Specifically, when the grid is experiencing low electricity prices, the energy management unit 300 sends a command to the charge and discharge control unit to initiate charging of the original vehicle battery pack 110. This allows energy to be stored when electricity prices are lowest. Conversely, when grid electricity prices reach peak times, the energy management unit 300 instructs the charge and discharge control unit to release energy from the original vehicle battery pack 110 to power external loads or feed it back to the grid. This not only reduces the cost of purchasing electricity directly from the grid during periods of high electricity prices, but also allows users to generate additional revenue by selling electricity to the grid.

[0062] 2) When the power consumption of the power grid in the power usage scenario where the energy storage system is located is restricted, the energy storage system is discharged according to the power requirements that need to be met by the power usage scenario; and when the discharge power is greater than the load power of the external load in the power usage scenario, the reverse flow output of the energy storage system to the upstream external power grid is restricted.

[0063] 3) Specifically, in certain circumstances, such as when the grid experiences power shortages or when local power companies limit users' maximum power usage, the energy storage system may need to assume partial or even full power supply responsibility. Upon detecting grid power restrictions, the energy management unit 300 immediately commands the charge and discharge control unit to initiate discharge mode, ensuring a continuous and stable power supply to critical devices and loads within the power scenario. If the energy storage system's discharge power exceeds the requirements of all external loads within the current power scenario, the energy management unit 300 will take measures to limit the energy storage system's reverse power supply to the grid (i.e., reverse current output) to avoid violating grid regulations or causing unnecessary power loss.

[0064] 3) Based on the set demand of the set power usage scenario, limit the power supply obtained by the energy storage system from the external power grid in the power usage scenario to be lower than the difference between the set demand and the load power of the external load in the power usage scenario; and when the load power of the external load is greater than the set demand, stop charging the energy storage unit.

[0065] Specifically, for some users with clear demand limits (such as the maximum demand agreed in the contract), the energy management unit 300 can implement a more sophisticated control strategy to avoid high fines due to exceeding the demand limit. Specifically, based on the set demand value, the energy management unit 300 calculates the maximum power supply that the energy storage system can obtain from the external power grid, and ensures that this value is always lower than the set demand minus the actual power consumption of the current external load. This means that the energy storage system only replenishes energy from the grid when necessary, and tries to rely on its own stored electricity to meet demand. Once it is found that the total power of the external load exceeds the pre-set demand threshold, the energy management unit 300 will immediately suspend the charging operation of the energy storage system and give priority to ensuring the normal operation of the load. The charging process will only be resumed after it is confirmed that the demand limit will not be exceeded.

[0066] Optionally, in some embodiments, the energy management unit 300 further includes a shared memory 500 for storing the running adoption data. Figure 1 In this embodiment, the shared memory 500 serves as an intermediary layer for user data exchange and processing. The shared memory 500 not only connects the original vehicle battery pack 110 and the charge-discharge unit 200 but also provides a data access point for the main control unit of the energy management unit 300. The original vehicle battery pack 110 and the charge-discharge unit 200 store operating parameters in the shared memory 500 for access by the energy management unit 300.

[0067] like Figure 2 As shown, a schematic diagram showing the relationship between the display interfaces in the energy storage system in an embodiment of the present disclosure is shown.

[0068] Optionally, the energy storage system also includes a first display interface 330, which is communicatively connected to the power supply unit 100 and the charge and discharge unit 200, and is used to display collected information of operating parameters read from the power supply unit 100 and the charge and discharge control unit; wherein the collected information includes acquisition time and device connection status.

[0069] Specifically, in the related art, when operating parameters are displayed, the time when the data was acquired is usually not included. This means that the user cannot determine when the currently displayed data was collected. If the data display is abnormal or inaccurate, it is difficult for the user to determine whether the problem is caused by outdated data or a problem with the device itself. The user may need to manually refresh the interface to see the latest data, which not only reduces the user experience, but also may miss important real-time information, affecting decision-making efficiency. Therefore, in the present disclosure, through the first display interface 330, the user can intuitively understand the current operating status and communication status of each device, which helps to quickly identify abnormal situations (such as data delays, communication interruptions, etc.) and improve fault response speed and system maintenance efficiency.

[0070] Optionally, the energy storage system further includes a second display interface 320 , which is communicatively connected to the energy management unit 300 , so as to obtain and display the operating parameters corresponding to the configuration instruction items from the shared memory 500 of the energy management unit 300 .

[0071] In some embodiments, the second display interface 320 is used to present operating parameters defined according to different configuration instruction items, such as voltage, current, temperature, SOC, SOH, etc.; it is suitable for operation and maintenance personnel to conduct in-depth analysis of the system operation logic and policy execution effects, and can also be used to generate reports, export data, and support remote monitoring and scheduling.

[0072] Furthermore, in some embodiments, a computer device is provided, which includes a display for displaying the first display interface 330. Optionally, when the shared memory 500 is provided in the computer device, the second display interface 320 can also be displayed on the display. When the charging and discharging unit 200 and the original vehicle battery pack 110 obtain operating parameters according to the total configuration table 400, the acquired operating parameter collection information is first displayed on the first display interface 330, and then the operating parameters and collection information are placed in the shared memory 500 for reading by the energy management unit 300 and the second display interface 320.

[0073] Optionally, a plurality of auxiliary units 600 are further included, each of which is configured with second device configuration information. The auxiliary unit 600 establishes a communication connection with the energy management unit 300 by adding the second device configuration information to the total configuration table 400 .

[0074] Specifically, in some embodiments, the auxiliary units 600 may be devices or subsystems that help improve the performance of the energy storage system or expand its functionality, such as environmental monitoring equipment, power conditioners, safety protection devices, etc. Each auxiliary unit 600 is configured with second device configuration information and establishes a communication connection with the energy management unit 300 (EMS) by adding the second device configuration information to the overall configuration table 400.

[0075] Optionally, the auxiliary unit 600 includes at least one of the following: a liquid cooling unit 800; a fire fighting unit 900;

[0076] The liquid cooling unit 800 is communicatively connected to the energy management unit 300 based on its corresponding second device configuration information to output the operating parameters of the liquid cooling unit 800 and receive the control instruction.

[0077] The fire fighting unit 900 is communicatively connected to the energy management unit 300 based on its corresponding second device configuration information to output the operating parameters of the fire fighting unit 900 and receive the control instructions.

[0078] Specifically, the liquid cooling unit 800 communicates with the energy management unit 300 based on its corresponding second device configuration information, outputting operating parameters such as outlet temperature, inlet temperature, humidity level, and energy consumption data in real time, and accepting control commands from the energy management unit 300, such as start / stop commands, temperature setpoint adjustment, and mode switching commands, thereby ensuring that the battery pack and other components operate within preset temperature and humidity conditions. On the other hand, the fire protection unit 900 also communicates with the energy management unit 300 through its second device configuration information, outputting operating parameters such as smoke concentration, temperature anomaly alarms, fire extinguishing device status, and historical event logs, and accepting control commands to activate the fire extinguishing device, adjust ventilation control, or issue an emergency power off command, effectively preventing and responding to fire risks.

[0079] like Figure 3 , which shows a schematic diagram of the internal structure of the box 700 in an embodiment of the present disclosure.

[0080] Optionally, the energy storage system is housed in a housing 700 , which includes a battery compartment 710 and an electrical compartment 720 , along with a fire protection system. The original vehicle battery pack 110 is stacked within the battery compartment 710 , and the addition or deletion of battery configuration information in the master configuration table 400 corresponds to the addition or deletion of the original vehicle battery pack 110 within the battery compartment 710 .

[0081] Specifically, the battery compartment 710 is used to accommodate the original vehicle battery pack 110. The original vehicle battery pack 110 is installed in a stacked manner in the battery compartment 710, which can maximize the use of space and ensure good heat dissipation. The design of the electrical compartment 720 ensures effective isolation and protection between the various electronic components, reduces electromagnetic interference, and improves the stability and safety of the system. The entire box 700 is equipped with a fire protection system that can respond quickly when a fire hazard is detected, prevent the fire from spreading, and ensure the safe operation of the system.

[0082] When it is necessary to add or remove the original vehicle battery pack 110 in the battery compartment 710, the corresponding operation can be completed by simply updating the battery configuration information in the general configuration table 400. For example: the battery configuration information of the new battery pack is added to the general configuration table 400, and the energy management unit 300 will automatically recognize it and include it in the monitoring and management system; if a battery pack needs to be retired or replaced, its corresponding battery configuration information can be deleted from the general configuration table 400, and the system will stop managing and scheduling the battery pack. In a preferred embodiment of the present disclosure, the size of the battery compartment 710 of the energy storage system and the number of original vehicle battery packs 110 can be flexibly changed according to actual needs.

[0083] like Figure 4 As shown, a schematic diagram of the layout structure of the fire protection system in an embodiment of the present disclosure is shown.

[0084] The fire protection system includes: a fire detection and alarm component 910 and a fire extinguishing component 920.

[0085] Specifically, the fire detection and alarm component 910 includes a detection unit 911 , an alarm unit 912 , and a fire control unit 913 that is communicatively connected to the detection unit 911 and the alarm unit 912 .

[0086] In some embodiments, the alarm unit 912 may include at least one of an internal sound and light alarm, a gas release alarm (which may also be an indicator light), and a warning bell, etc., installed in the housing 700. Alternatively, the alarm unit 912 may also include an external sound and light alarm, a gas release alarm, etc., located outside the housing 700, to provide alarm prompts. The alarm unit 912 may be controlled by the fire control unit 913 or connected to a manual alarm button for a user to manually trigger an alarm.

[0087] In some embodiments, the detection unit 911 includes a compartment-level detection component and an original vehicle battery pack 110-level detection component. The original vehicle battery pack 110-level detection component includes a composite fire detector 9111 for detecting combustible gas and temperature, which is provided for each original vehicle battery pack 110. As an example, the composite fire detector 9111 can be provided on each original vehicle battery pack 110, for example, on the surface of the original vehicle battery pack 110.

[0088] The detection unit 911 includes a bin-level detection component and a vehicle battery pack 110-level detection component. The vehicle battery pack 110-level detection component includes a composite fire detector 9111 for detecting combustible gas and temperature, corresponding to each vehicle battery pack 110. The bin-level detection component includes a preset number of heat-sensing fire detectors 9112, combustible gas detectors 9113, and smoke detectors 9114.

[0089] Specifically, the detectors in the compartment-level detection assembly can be distributed in the battery compartment 710 or the battery compartment 710 and the electrical compartment 720, and can be set at the top. Figure 4 In an embodiment, the compartment-level detection assembly may include a set of two heat-sensing fire detectors 9112. These are provided in one side area of ​​the top of the battery compartment 710. A set of heat-sensing fire detectors 9112 and smoke detectors 9114 are provided at the top of the other side area. A combustible gas detector 9113 is provided at the top between the two side areas. The combustible gas detector 9113 may be a composite gas detector that detects hydrogen (H2) and carbon monoxide (CO). Optionally, a set of heat-sensing fire detectors 9112 and smoke detectors 9114 may also be provided at the top of the electrical compartment 720 to detect a fire that has spread to the electrical compartment 720.

[0090] The fire extinguishing component 920 is communicatively connected to and controlled by the fire control unit 913 , and includes an exhaust unit 921 , a fire extinguishing agent spraying component 922 and a water injection component 923 .

[0091] The exhaust unit 921 connects the battery compartment 710 to the outside world and is used to exhaust the battery compartment 710 to prevent explosions. In some embodiments, the exhaust unit 921 may include a fan, as well as an air inlet and an air outlet (which may also include shutters) located on the side wall of the housing 700 and connected to the battery compartment 710. The fan may be located in the flow path between the air inlet and the air outlet, for example, at the air outlet. The exhaust unit 921 may be connected to and controlled by the fire control unit 913. Optionally, the fan may also have a manual fan switch, allowing the user to manually start and stop the fan.

[0092] The spraying port of the fire extinguishing agent spraying assembly 922 is connected to the original vehicle battery pack 110. Figure 4 In the embodiment, the fire extinguishing agent spraying assembly 922 is shown to include a fire extinguishing agent spraying device 9221, a fire extinguishing agent main pipe 9222 and various fire extinguishing agent branches 9223. Optionally, the fire extinguishing agent spraying device 9221 can be arranged in the electrical compartment 720 adjacent to the battery compartment 710. The fire extinguishing agent in the fire extinguishing agent spraying device 9221 can be perfluoroacetone. Compared with heptafluoropropane, perfluorohexanone has higher insulation strength, and after extinguishing the open fire, perfluorohexanone can be intermittently sprayed to maintain local and full flooding concentrations, which is beneficial to suppress battery thermal runaway and thus achieve continuous suppression of re-ignition. Perfluorohexanone is a liquid at room temperature and can be safely transported and stored at normal pressure using ordinary containers, which can meet the performance requirements of separately configuring a fire extinguishing medium nozzle for each original vehicle battery pack 110 as recommended by the regulations. Perfluorohexanone has an ODP (ozone depletion potential) of zero, a low GWP, and an atmospheric residence time of 5 days. It is a green and environmentally friendly refrigerant with excellent performance and is expected to replace other traditional fire extinguishing media such as heptafluoropropane. The fire extinguishing agent main pipe 9222 is connected to the fire extinguishing agent spraying device 9221 and extends to the top of the battery compartment 710. Then, the fire extinguishing agent main pipe 9222 extends downward from the position corresponding to each column of original vehicle battery packs 110 at the top of the battery compartment 710 to form a fire extinguishing agent branch pipe 9223 corresponding to each original vehicle battery pack 110. Each fire extinguishing agent branch pipe 9223 is connected to a partition valve 9224 for controlling the on and off of the fire extinguishing agent branch pipe 9223, so as to control the fire extinguishing agent branch pipe 9223 to spray or stop spraying the fire extinguishing agent on the corresponding original vehicle battery pack 110. The partition valve 9224 can be controlled by the fire control unit 913.

[0093] The water outlet of the water injection assembly 923 is connected to the battery compartment 710. Figure 4 In the figure, the water injection assembly 923 is shown to include a water injection pipe 9231, which extends from the outside of the battery compartment 710 through the hole on the wall of the battery compartment 710 into the battery compartment 710, and is arranged so that its water outlet is set close to the top, above each of the original vehicle battery packs 110. The water injection pipe 9231 is provided with a valve outside the battery compartment 710, such as an electric ball valve 9232 that can be manually and electrically controlled, which is used to control the water injection pipe 9231 to inject water into the battery compartment 710 to extinguish the fire by flooding. The electric ball valve 9232 can be controlled by the fire control unit 913. The water inlet of the water injection pipe 9231 outside the battery compartment 710 can be used to connect to a fire water source, such as a fire hydrant, through a fire water pipe. In some embodiments, the box body 700 can be set close to the fire water source to facilitate water injection. When gas firefighting cannot control the spread of thermal runaway, firefighting water will be used to fill the entire tank, immersing the original vehicle battery pack 110 in thermal runaway in water to quickly control the fire.

[0094] Optionally, the fire control unit 913 activates the alarm unit 912 to sound an alarm in response to a first fire alarm signal from any one of the detectors in the warehouse-level detection component and the battery unit-level detection component.

[0095] Specifically, if any detector in the detection unit 911 (which can be a detector in a bin-level detection assembly or a detector in a battery-unit-level detection assembly) detects data anomalies or a manual fire alarm button, it outputs the first fire alarm signal and reports it to the fire control unit 913 (for example, to the gas fire extinguishing controller 9131). If the alarm is a combustible gas alarm (for example, if the combustible gas concentration reaches a threshold), the exhaust unit 921 can be used to exhaust the gas for explosion prevention.

[0096] In response to a second fire alarm signal from any two detectors belonging to the same protection zone, the fire control unit 913 activates the fire extinguishing assembly 920 to execute the fire extinguishing action after a preset delay. The protection zone of a gas fire extinguishing system refers to a limited space that meets the requirements of a full-flood gas fire extinguishing system. Specifically, upon receiving a second linkage trigger signal, a second alarm signal indicating a more severe fire is generated and reported to the gas fire extinguishing controller 9131. The linkage trigger signal refers to the alarm signal from a detector belonging to the same protection zone as the detector that generated the first-level alarm. When the fire control unit 913 receives the second alarm signal, it controls the delayed activation of the fire extinguishing device (for example, spraying after a 30-second countdown) to spray the fire extinguishing agent to extinguish the fire. In some embodiments, to prevent the airflow of the exhaust unit 921 from affecting the spraying of the fire extinguishing agent, the exhaust unit 921 can also be shut down and the fire extinguishing assembly 920 activated. If the abnormal original vehicle battery pack 110 has a battery explosion-proof valve, the battery explosion-proof valve can also be opened.

[0097] In yet another embodiment of the present disclosure, an energy storage power station is provided, which includes the energy storage system described in any one of the embodiments.

[0098] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, any equivalent modifications or alterations made by a person skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the scope of protection of this disclosure.

Claims

1. An energy storage system, characterized in that: include: A power supply unit, comprising at least one original vehicle battery pack for powering an external load, each original vehicle battery pack being configured with battery configuration information; A charge and discharge control unit, electrically connected to the power supply unit, for managing the charge and discharge of the original vehicle battery pack; the charge and discharge control unit is configured with first device configuration information; An energy management unit is communicatively connected to a general configuration table. The power supply unit and the charge and discharge control unit establish a communication connection with the energy management unit by adding the battery configuration information and the first device configuration information to the general configuration table, so that the energy management unit collects corresponding operating parameters and sends control instructions according to the configuration instruction items preset in the general configuration table, so that the charge and discharge control unit performs charging and discharging; wherein, the energy management unit simulates the communication environment of the actual vehicle for at least one original vehicle battery pack, so as to obtain real-time battery operating parameters from the original vehicle battery pack, and manage the charging and discharging of the original vehicle battery pack through the charge and discharge control unit based on a preset energy adjustment strategy.

2. The energy storage system according to claim 1, characterized in that The plurality of configuration instruction items include parameter acquisition items corresponding to preset types of operating parameters of the original vehicle battery pack and / or the charge and discharge control unit; wherein the number and / or content of the configuration instruction items in the total configuration table are editable.

3. The energy storage system according to claim 1, characterized in that It also includes a first display interface, which is communicatively connected to the power supply unit and the charge and discharge unit, and is used to display the collected information of the operating parameters read from the power supply unit and the charge and discharge control unit; wherein the collected information includes the acquisition time and the device connection status.

4. The energy storage system according to claim 1, characterized in that It also includes a second display interface, which is communicatively connected to the energy management unit and is used to display the operating parameters corresponding to the configuration instruction items.

5. The energy storage system according to claim 1, characterized in that: The system further includes a plurality of auxiliary units, each of which is configured with second device configuration information. The auxiliary units establish a communication connection with the energy management unit by adding the second device configuration information to the overall configuration table.

6. The energy storage system according to claim 5, characterized in that: The auxiliary unit includes at least one of the following: a liquid cooling unit; a fire fighting unit; The liquid cooling unit is communicatively connected to the energy management unit based on its corresponding second device configuration information to output the operating parameters of the liquid cooling unit and receive the control instruction; The fire protection unit is communicatively connected to the energy management unit based on its corresponding second device configuration information to output the operating parameters of the fire protection unit and receive the control instructions.

7. The energy storage system according to claim 1, characterized in that: The energy adjustment strategy includes at least one of the following: 1) The power supply unit is charged according to the valley and flat values ​​of the local electricity price, and discharged at the peak value; 2) When the power consumption of the power storage system is restricted by the power grid, the energy storage system is discharged according to the power requirements of the power usage scenario; and when the discharge power is greater than the load power of the external load in the power usage scenario, the reverse flow output of the energy storage system to the upstream external power grid is restricted; 3) Based on the set demand of the set power usage scenario, limit the power supply obtained by the energy storage system from the external power grid in the power usage scenario to be lower than the difference between the set demand and the load power of the external load in the power usage scenario; and when the load power of the external load is greater than the set demand, stop charging the energy storage unit.

8. The energy storage system according to claim 1, characterized in that: The energy storage system is configured in a box; the box includes a battery compartment and an electrical compartment, and is equipped with a fire protection system; The original vehicle battery pack is stacked in the battery compartment, and the original vehicle battery pack is added or deleted in the battery compartment by adding or deleting battery configuration information in the general configuration table; The fire protection system includes: A fire detection and alarm assembly includes a detection unit, an alarm unit, and a fire control unit communicatively connected to the detection unit and the alarm unit; the detection unit includes a bin-level detection assembly and a battery cell-level detection assembly; the bin-level detection assembly includes a preset number of temperature fire detectors, combustible gas detectors, and smoke detectors; the battery cell-level detection assembly includes a composite fire detector for detecting combustible gas and temperature, which is set corresponding to each original vehicle battery pack; A fire extinguishing assembly, communicatively connected to and controlled by the fire control unit, includes an exhaust unit, a fire extinguishing agent spraying assembly, and a water injection assembly; the exhaust unit connects the battery compartment to the outside world; the spraying port of the fire extinguishing assembly connects to the original vehicle battery pack; and the water outlet of the water injection assembly connects to the battery compartment; The fire control unit responds to the first fire alarm signal from any detector in the warehouse-level detection component and the battery-level detection component to activate the alarm unit to sound an alarm; if a combustible gas fire alarm occurs, the exhaust unit is linked to perform exhaust to prevent explosion; The fire control unit responds to the second fire alarm signal from any two detectors belonging to the same protection zone, links the fire extinguishing component to perform the fire extinguishing action after a preset delay; and after the fire extinguishing component is activated, an alarm is issued through the alarm unit; After the fire extinguishing action is responded to, the fire control unit starts the water injection component to inject water into the battery compartment according to the temperature data detected by the compartment-level detection component or the battery cell-level detection component meeting the thermal runaway condition.

9. The energy storage system according to claim 8, characterized in that: The fire extinguishing assembly comprises: A fire extinguishing agent spraying device, a fire extinguishing agent main pipe connected to the fire extinguishing agent spraying device, and a fire extinguishing agent branch pipe connected to the fire extinguishing agent main pipe and corresponding to each original vehicle battery pack; each fire extinguishing agent branch pipe is provided with a partition valve for controlling on / off; The fire control unit links the fire extinguishing component to perform a fire extinguishing action, including: in response to the detector that generates the alarm being a composite fire detector, turning on the partition valve of the fire extinguishing agent branch pipe corresponding to the original vehicle battery pack of the composite fire detector to perform a fire extinguishing action on the corresponding original vehicle battery pack.

10. An energy storage power station, characterized in that: Comprising one or more energy storage systems according to any one of claims 1 to 9.

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