KR102045489B1 - Device for prevention of fires in energy storage system, and method thereof - Google Patents

Abstract

Disclose are a fire prevention device of an energy storage device and a fire prevention method for the same. The fire prevention device comprises: a battery rack group including a plurality of battery racks and a plurality of BMSs managing each of the battery racks; and a temperature sensor dividing the entire group of the battery racks into a plurality of areas and detecting temperature information for each area.

Description

Energy storage device including fire prevention device, and fire prevention method of the energy storage device {DEVICE FOR PREVENTION OF FIRES IN ENERGY STORAGE SYSTEM, AND METHOD THEREOF}

The present invention relates to an energy storage device, and more particularly, to a fire prevention system and a method of an energy storage device, which can prevent fires that may occur in the energy storage device in advance and effectively cope with the generated fires.

In general, an energy storage system (ESS) refers to a device that stores electricity, which is irregularly produced according to a natural environment such as wind, biomass, solar light, and sends it to a power grid when necessary. The ESS converts the generated surplus power into its own and stores it temporarily for use when needed. Typically, the ESS includes a battery, a battery management system (BMS), a power conversion system (PCS), a power management system (PMS), an energy management system (EMS), and the like. It consists of.

Each battery stores energy and sends it out, and is composed of a battery module in which several cells are grouped and arranged in a frame to protect against external shock. In addition, a plurality of battery modules are bundled into a battery rack, and each battery rack is managed through BMS. BMS precisely balances battery cell capacity and controls battery status to allow all cells to be fully charged or to utilize stored electrical energy. In addition, PCS refers to a device that converts electrical characteristics (frequency, voltage, AC / DC) to receive power in the ESS to be stored in the battery or discharged to the power system. In addition, PMS refers to an operating system that monitors and controls the status of batteries and PCS, and enables integrated monitoring or control of the entire system through EMS, and controls the amount of charge and discharge power by reflecting the requirements of EMS, the upper management system. And manage the entire system.

The above-described ESS uses a battery, which mainly uses a lithium battery having high energy efficiency. However, a battery such as a lithium battery has a high risk of fire, and many fire accidents have recently occurred not only in Korea but also in the world. According to the press release related to "Explosion Fire Accident Prevention and Institutional Improvement Seminar" held by the Korea Fire Protection Society on August 23, 2018, 887 domestic ESSs were installed including wind power plants, solar power management, and frequency adjustment. A total of seven fires occurred in container facilities installed at ESS from May to August 2018. Seven fires occurred in four months out of 887 facilities, and the frequency of fires is very high, and domestic ESS fire accidents are estimated to be significant.

On the other hand, the fire management method of the conventional ESS, a flame detector, a smoke detector, etc. are disposed in a container in which a plurality of battery racks are accommodated, and when a flame or smoke is detected, a fire extinguishing facility is installed and used to burn. However, if a flame or smoke is detected, it can be regarded as a fire already occurred, and when the fire extinguishing system is driven, the components inside the container, such as a battery or a computer, are all disabled.

An object of the present invention is to provide a fire prevention system for the ESS, specifically, by detecting in advance the precursor symptoms of the fire in the ESS can be preemptively responding before a fire phenomenon such as smoke, gas, ignition It is to provide a fire prevention device, an energy storage device including the same, and a fire prevention light management method of the energy storage device using the fire prevention device.

Energy storage device according to the present invention, each of the plurality of battery modules; And a battery rack group including a plurality of battery racks including a plurality of BMSs for managing each of the plurality of battery modules, and a temperature for detecting temperature information for each region by dividing the battery rack group into a plurality of regions. And a sensing device and a PMS for controlling the plurality of BMSs and the temperature sensing device, wherein the PMS collects BMS temperature data and BMS voltage data for the corresponding battery rack from the plurality of BMSs, A data collecting unit collecting temperature information for each region of the entire battery rack group from a sensing device; A classification data DB for classifying the BMS temperature data collected through the data collection unit, the BMS voltage data, and temperature information for each region and storing each of them as time series data; An abnormal state discriminating unit determining an abnormal state when an event exceeding a predetermined temperature value or a voltage value is generated based on the time series data; An abnormal state DB for storing abnormal state data including a temperature value, a voltage value, an event occurrence time and position information corresponding to each of a series of events determined as an abnormal state by the abnormal state discriminating unit; And a diagnosis unit configured to generate the fire response information for each stage by comparing abnormal state data corresponding to the priority abnormal state and abnormal state data corresponding to the lower priority abnormal state.

The abnormal state discrimination unit determines that the first abnormal state occurs when an event exceeding a predetermined temperature value or voltage value occurs, and the second abnormality occurs when an event exceeding a temperature value or voltage value corresponding to the first abnormal state occurs. It is characterized by judging by the state.

The diagnostic unit comprises, from the plurality of abnormal state data corresponding to the series of events determined as the abnormal state by the abnormal state discrimination unit, abnormal continuous data including a temperature value change rate, a voltage value change rate, an event occurrence time interval, and position information. And extracting the stepwise fire response information based on the abnormal continuous data.

The energy storage device further includes a power control device for turning on or off the plurality of BMSs, wherein the PMS controls the power control device according to the step-by-step fire response information generated by the diagnosis unit. It is done.

Here, the location information includes identification information on the battery rack corresponding to each of the plurality of BMSs, or area information on each location of the plurality of areas in which the temperature sensing device divides the entire battery rack group. Characterized in that.

The energy storage device further includes a fire extinguishing device configured to burn a fire corresponding to each of the plurality of battery racks, and the PMS includes a specific battery in which a fire is generated according to the step-by-step fire response information generated by the diagnosis unit. It is characterized in that for driving the fire extinguishing device corresponding to the rack.

The energy storage device further includes a fire extinguishing device configured to combust the fire in response to a plurality of areas divided by the temperature sensing device, wherein the PMS includes a fire according to the stepwise fire response information generated by the diagnosis unit. It characterized in that for driving the fire extinguishing device corresponding to the specific area is generated.

The energy storage device includes an EMS connected by the PMS and a communication network; And an administrator terminal connected by the EMS and a communication network, wherein the EMS delivers the abnormal state data and the step-by-step fire response information to the manager terminal after receiving the step-by-step fire response information from the PMS. do.

The energy storage device includes an EMS connected by the PMS and a communication network; And an administrator terminal connected by the EMS and a communication network, wherein the location information includes identification information of the battery rack corresponding to each of the plurality of BMSs, or the temperature sensing device classifies the entire battery rack group. Area information for each of the plurality of areas, wherein the EMS receives the step-by-step fire response information from the PMS, and the location information of a specific battery rack or a specific area in which an abnormal state is generated in the manager terminal. And along with the step of transmitting the fire response information.

In another aspect of the invention, the battery rack including a plurality of battery modules; A BMS for managing the battery module in response to the battery rack; A PCS for converting DC power stored in the battery module into AC power to supply power to a power system or converting AC power into DC power from a power system and storing the battery in the battery module; and a PMS for controlling the PCS; A fire prevention device for an energy storage device, comprising: a data collection unit for continuously collecting BMS temperature data and BMS voltage data for the battery rack corresponding to the BMS; A classification data DB for classifying the BMS temperature data and the BMS voltage data and storing each as time series data; An abnormal state discriminating unit determining an abnormal state when an event exceeding a predetermined temperature value or a voltage value is generated based on the time series data; An abnormal state DB for storing abnormal state data including a temperature value, a voltage value, and an event occurrence time corresponding to each of the series of events determined as the abnormal state by the abnormal state discriminating unit; It provides a fire prevention device for an energy storage device comprising a; diagnostic unit for generating a step-by-step fire response information by comparing the abnormal state data corresponding to the priority abnormal state and the abnormal state data corresponding to the lower priority abnormal state.

The abnormal state discrimination unit determines that the first abnormal state occurs when an event exceeding a predetermined temperature value or voltage value occurs, and the second abnormality occurs when an event exceeding a temperature value or voltage value corresponding to the first abnormal state occurs. It is characterized by judging by the state.

The diagnostic unit comprises, from the plurality of abnormal state data corresponding to the series of events determined as the abnormal state by the abnormal state discrimination unit, abnormal continuous data including a temperature value change rate, a voltage value change rate, an event occurrence time interval, and position information. And extracting the stepwise fire response information based on the abnormal continuous data.

In another aspect of the invention, a battery rack group including a plurality of battery racks and a plurality of BMS for managing each battery rack; And a temperature sensing device for detecting temperature information for each area by dividing the entire battery rack group into a plurality of areas, wherein the BMS temperature of the battery rack corresponding to the plurality of BMSs is included. Collecting data and BMS voltage data, temperature information for each area of the entire battery rack group from the temperature sensing device, classifying the collected BMS temperature data, the BMS voltage data and temperature information for each area. Storing each as time series data; determining an abnormal state when an event exceeding a preset temperature value or voltage value is generated based on the time series data; and determining each of a series of events determined as abnormal conditions. Save abnormal state data including corresponding corresponding temperature value, voltage value, event occurrence time and position information Comparing the phase and the abnormality data corresponding to the abnormal state and subordinated data over state corresponding to a priority over that to condition characterized by generating a step-by-step information corresponding fire.

In the determining of the abnormal state, when an event exceeding a preset temperature value or voltage value occurs, it is determined as a primary abnormal state, and an event exceeding a temperature value or voltage value corresponding to the primary abnormal state occurs. If it is characterized by judging the later abnormal state.

The step of generating the fire response information for each step includes, from the plurality of abnormal state data corresponding to the series of events determined to be abnormal, abnormal duration data including a temperature value change rate, a voltage value change rate, an event occurrence time interval, and position information. And extracting the stepwise fire response information based on the abnormal continuous data.

The method may further include controlling a power control device for turning on or off the plurality of BMSs according to the stepped fire response information.

Driving a fire extinguishing device corresponding to a specific battery rack in which a fire occurs among the plurality of battery racks, or a specific area in which a fire occurs among the plurality of areas classified by the temperature sensing device according to the step-by-step fire response information. It may further include.

The location information includes identification information of the battery rack corresponding to each of the plurality of BMSs, or area information of each location of the plurality of areas in which the temperature sensing device divides the entire battery rack group. The method may further include transmitting the fire response information for each step together with the location information for the specific battery rack or the specific area in which the abnormal state is generated in the manager terminal according to the fire response information for each step.

In another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program for performing the fire prevention method of the energy storage device described above.

Korea is an advanced country of manufacturing lithium battery, a key part of ESS, and is actively installing ESS in public institutions or large factories with various governmental policy support. However, since Korea has a smaller site than the United States, it may be difficult to satisfy the battery separation distance standard. In particular, when the ESS is installed in the existing factory site, it is not easy to install the battery while satisfying the separation distance and the fire extinguishing facility standard required by the overseas standards. For this reason, the risk of fire in ESS will be gradually increased. However, existing fire prevention methods are only detected and extinguished after the fire or the smoke / ignition state equivalent to the fire. According to the present invention, there is provided a fire prevention device and method for the ESS for identifying and preventing the precursor symptoms before the fire occurs in the ESS having a high fire risk. It is possible to replace or repair dangerous equipment in advance of a fire, greatly reducing the occurrence of fire.

1 is a general schematic diagram of an ESS according to the present invention.
2 is a block diagram of a fire prevention apparatus according to the present invention.
3 is an exemplary view of a plurality of regions detected by the temperature sensing device.
4 is a flowchart schematically illustrating a fire management procedure of the ESS using the fire prevention device according to the present invention.
5 and 6 are graphs showing a time-dependent temperature change and a time-dependent voltage change explaining an abnormal state with respect to temperature and voltage.

Prior to the description of the present invention, the terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should consider their own invention in the best way. For the purpose of explanation, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention on the basis of the principle that it can be appropriately defined as the concept of term. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be water and variations.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, it should be noted that like elements are denoted by like reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

In addition, terms including ordinal numbers, such as first and second, are used to describe various components, and are used only to distinguish one component from another component, and to limit the components. Not used. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.

In addition, when a component is referred to as being "connected" or "connected" to another component, it means that it may be connected or connected logically or physically. In other words, although a component may be directly connected or connected to other components, it should be understood that other components may exist in the middle, and may be connected or connected indirectly.

In addition, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, the terms "comprises" or "having" described herein are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or the same. It is to be understood that the present invention does not exclude in advance the possibility of the presence or the addition of other features, numbers, steps, operations, components, parts, or a combination thereof.

In addition, the terms “… unit”, “… unit”, “module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. have.

Also, "a or an", "one", "the" and the like are also indicated differently herein in the context of describing the present invention (especially in the context of the following claims). Unless otherwise expressly contradicted by context, it may be used in the sense including both the singular and the plural.

In addition, embodiments within the scope of the present invention include computer readable media having or conveying computer executable instructions or data structures stored on the computer readable medium. Such computer readable media can be any available media that can be accessed by a general purpose or special purpose computer system. By way of example, such computer readable media may be in the form of RAM, ROM, EPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, or computer executable instructions, computer readable instructions or data structures. And may include, but are not limited to, any other medium that can be used to store or deliver certain program code means, and can be accessed by a general purpose or special purpose computer system. .

In the following description and claims, “network” is defined as one or more data links that enable the transfer of electronic data between computer systems and / or modules. When information is transmitted or provided to a computer system via a network or other (wired, wireless, or a combination of wired or wireless) communication connections, this connection can be understood as a computer-readable medium. Computer-readable instructions include, for example, instructions and data that cause a general purpose or special purpose computer system to perform a particular function or group of functions. The computer executable instructions may be, for example, binary, intermediate format instructions such as assembly language, or even source code. The invention may also be practiced in distributed system environments where both local and remote computer systems that are linked via wired networks, wireless data links, or combinations of wired and wireless data links perform tasks. In a distributed system environment, program modules may be located in both local and remote memory storage devices.

First, referring to Figures 1 and 2, the overall system configuration of the energy storage device (ESS) according to the present invention will be described.

As shown in FIG. 1, the battery racks 10a, 10b, and 10c each include a plurality of battery modules (not shown), and each of the plurality of battery modules is managed through a corresponding BMS. The plurality of battery racks 10a to 10c constitute one battery rack group, and the battery rack groups may be connected to the PMS through a system battery management system (SBMS). Battery rack groups can be manually controlled by an administrator through the Battery Control Panel (BCP). In addition, the PCS controlled through the PMS, converts the DC power stored in the battery rack group to AC power to supply power to the power system or to convert the AC power from the power system to DC power to store in the battery rack group Do this. Furthermore, the PMS directly controls each BMS that manages the battery rack or controls each BMS through the SBMS, and also controls the amount of charge and discharge power by controlling the PCS reflecting the requirements of the upper management system to manage the total power. do. In addition, the PMS may be connected to the upper management system EMS through a wired or wireless communication network to transmit and receive necessary information and commands. The EMS may communicate with the manager terminal 200 through a wired or wireless communication network. The entire battery rack group constituting the ESS device is usually loaded inside the container, the battery rack consisting of a multi-stage battery module is arranged in a row to form a battery rack group. Since a series of devices are arranged inside the container (not shown), a cooling device (not shown) may be installed to solve a problem such as heat generation.

In the above-described ESS, fire prevention can be largely divided into a prevention phase and a disaster isolation phase. Here, the present invention was developed in order to preemptively respond to a phenomenon such as gas generation by analyzing prognostic symptoms while constantly monitoring data collected in a steady state as a preventive step. In particular, when a battery such as a lithium ion battery is abnormal in the cell itself or an external factor in a normal state, an abnormality occurs in the voltage and temperature inside the cell, and if the state persists for a predetermined time, after the gas is ejected, If the gas is "thermal runaway" due to continuous gas release, smoke is produced and then ignited.

Focusing on this phenomenon, as a result of constantly monitoring the state (temperature and voltage) of the battery cell and battery module and studying the correlation between the fires actually generated, the fire prevention apparatus and method for ESS according to the present invention was developed. It was. According to this, it is possible to grasp the precursor symptoms by using the data collected for each battery rack in the normal state, and to take action in accordance with the step-by-step fire response method.

The ESS is a gas disposed between a power control device 20 that cuts off power in case of emergency, a fire extinguishing device 30 capable of burning in the event of a fire, and a position corresponding to the battery racks 10a to 10c or a neighboring battery rack. The sensor 50a to 50c and the flame detection sensor (60a to 60c) and the battery rack group (10a to 10d) may be divided into a plurality of areas to include a temperature sensing device 40 for detecting temperature information for each area; Can be.

Here, the fire extinguishing device 30 may include a plurality of injection nozzles 30a to 30d for injecting the extinguishing gas (or extinguishing liquid) corresponding to the areas separated for the battery rack group, and the injection nozzles corresponding to the partial area. Only may be selectively driven. In addition, the temperature sensing device 40 may be composed of, for example, a multi-temperature sensor 40a and / or a thermal imaging camera 40b. The temperature sensor 40 may generate the temperature information corresponding to each of the plurality of regions by dividing the entire battery rack group into a predetermined region. That is, as shown in Fig. 3, for example, an array area of "8 x 8" [total 64 locations; (a1, b1),... , (a8, b1),... , (a1, b8),... , (a8, b8)] after acquiring a thermal image or temperature information for each of them, temperature information for each region (numerical temperature information measured by a multi-temperature sensor or a thermal image detected by a thermal camera) Is sent to the PMS.

On the other hand, the fire prevention apparatus according to the present invention can be configured as follows. That is, as shown in FIG. 2, the data collector 111 continuously collects BMS temperature data and BMS voltage data for the corresponding battery rack from the BMS, and classifies each of the BMS temperature data and BMS voltage data in time series. The classification data DB 122 for storing data, the abnormal state discriminating unit 112 for determining an abnormal state when an event exceeding a preset temperature value or voltage value is generated based on the generated time series data, and an abnormal state. An abnormal state DB 123 for storing abnormal state data including corresponding temperature values, voltage values, and event occurrence times corresponding to each of the series of events determined as the first event, abnormal state data corresponding to the senior abnormal state, and subordinated abnormality It may be configured to include a diagnostic unit 113 for generating a step-by-step fire response information by comparing the abnormal state data corresponding to the state. Here, the data collector 111 may further collect temperature information for each region of the entire battery rack group from the temperature sensing device 40, and the collected temperature information for each region may be classified for each region to provide time series data. Can be stored. The time series data may be composed of BMS temperature data, BMS voltage data, and temperature information of a specific region of a specific battery rack, respectively, and separately classified according to time. In the following, the detailed configuration and function of the fire prevention device will be described in more detail. In addition, the fire prevention device 110 according to the present invention may be installed as a separate device attached to the PMS, may be configured to function as a fire prevention device according to the present invention in addition to the PMS generally required function. .

Hereinafter, the ESS fire management procedure using the fire prevention device according to the present invention will be described in detail. The ESS fire management procedure collects data on temperature, humidity, multi-temperature, flame, smoke, and thermal image through various sensors (temperature sensor, flame sensor, gas sensor, etc.) as well as BMS data. Save to DB.

In the steady state, the PMS collects the above-described BMS temperature data, BMS voltage data, and region-specific temperature information and constantly monitors them to analyze the precursor symptoms to generate stepwise fire response information.

The gas detection state should be the most urgent symptom of a fire and keep the battery stable. When gas detection is detected (S12), commands are sent to the PCS and the battery, respectively, to stop the operation of the PCS and stop the cell balancing of the battery. If command of each equipment is not smooth, power off the battery and PCS through the power controller.

In the smoke / ignition state, when the flame is detected (S11), it is the same as the state of fire already, so the power control device and the fire extinguishing device are driven to cut off the power of each device, and the extinguishing gas (digestion liquid) is ejected. Send the necessary information to the administrator's terminal for the administrator to dispatch.

As such, the gas detection state and the smoke / ignition state may be performed through detection information collected from the conventional gas detection sensors 50a to 50c and the flame detection sensors 60a to 60c (S11 and S12).

In the present invention, the fire precursor symptom is grasped in advance from the data collected in the normal state when no gas, smoke and ignition states are detected. That is, the change of the maximum value of temperature and voltage is tracked through the collected BMS temperature data, BMS voltage data, and region-specific temperature information. As shown in FIGS. 5 and 6, in a steady state, the apparatus operates without showing a large variability below a certain reference value (temperature or voltage value), but when a fire occurs, an abnormal state with relatively small variability is initially found as a precursor of fire. It suddenly fluctuates greatly. In particular, at both temperature and voltage, when an abnormal state occurs continuously in the third order or more, it shows a rapid change and subsequently leads to a smoke / ignition state. With this in mind, it is possible to quickly prepare for the risk of fire when an early symptom of small fluctuation occurs.

That is, as a specific method, after the BMS temperature data, the BMS voltage data, and the temperature information for each region collected through the data collection unit 111 are stored in the ledger data DB 121, the corresponding battery rack and the clock for each region are displayed. Generated from thermal data. If an event exceeding a predetermined temperature value and a voltage value is generated based on the generated time series data, it is determined as an abnormal state (S14). Here, the "event" means a specific time point including temperature value, voltage value, and region-specific temperature information generated at a specific time, and an abnormal state means a significant event that can be identified as a precursor of fire risk.

On the other hand, the abnormal state discrimination unit 112 determines that the first abnormal state occurs when an event exceeding the set temperature value or voltage value occurs, and an event exceeding the temperature value or voltage value corresponding to the primary abnormal state occurs. It can be judged as a later abnormal state. That is, if a temperature or voltage exceeding the initial reference line is detected, it is determined as a primary abnormal state, but if it is less than the temperature or voltage of the primary abnormal state after the initial reference value is not determined as an abnormal state. This is because the first abnormal state may vary according to the initial set reference value. If the baseline is set too low, unspecific events, which may occur depending on the surrounding environment, are mistaken for fire hazard symptoms. This is to prevent expenses caused by conducting consumable fire response such as eruption and dispatch. Even if the first abnormal condition occurs, the risk is naturally reduced as the temperature or voltage gradually decreases due to the nonspecific phenomenon caused by environmental changes. Therefore, as a method for more precisely grasping the precursor of fire, the secondary and tertiary abnormal states are determined to be the later abnormal state when the temperature and voltage values of the primary abnormal state are exceeded.

The abnormal state data including the temperature value, the voltage value, the event occurrence time and the position information corresponding to each of the series of events determined as the abnormal state by the abnormal state discriminating unit 112 is stored in the abnormal state DB 123, By comparing the abnormal state data corresponding to the priority abnormal state and the abnormal state data corresponding to the lower abnormal state (S15). Specifically, the diagnostic unit 113, based on the plurality of abnormal state data corresponding to the series of events determined by the abnormal state discrimination unit 112, the temperature value change rate, voltage value change rate, event occurrence time interval and Abnormal persistence data including location information is extracted, and fire response information for each stage is generated based on the abnormal persistence data. Here, the step-by-step fire response information can be set to appropriate measures depending on the level of response, such as simple notification (caution), manager dispatch (interest), equipment stop and electrical shutdown (severe), fire extinguishing fluid (emergency), which is accumulated Based on the anomalous persistence data, the manager can prepare appropriate criteria. For example, by analyzing the abnormal sustained data, it is possible to distinguish between the case where the temperature or voltage difference between the primary and secondary abnormal states is above a certain level, or when the time interval between the primary and secondary abnormal states is below a certain level. It is also possible to adjust. In addition, it is also possible to modify the level of response of the fire response information by the reference value or step by using the correlation between the temperature or voltage change rate, the time interval between abnormal conditions, etc. with respect to the probability of fire occurrence through continuous abnormality data collected continuously.

Based on the step-by-step fire response information generated by the diagnosis unit, the interlocking unit 114 transmits the necessary information for the EMS, the upper management system, to transmit the first step alarm (caution) to the manager terminal 200, or the second step alarm ( Manager dispatch command) or, as a three-step measure to cut off the power of the BMS and PCS through the power control device 20, or performs a four-step measure to extinguish the digestive fluid (S16).

In particular, the abnormal state data may include location information, wherein the location information includes identification information of the battery rack corresponding to each of the plurality of BMSs, or the temperature sensing device 40 classifies the entire battery rack group. It includes area information for each position of the plurality of areas. The fire extinguishing device 30 may include a plurality of injection nozzles for burning a fire corresponding to each of the plurality of battery racks or the plurality of areas divided by the temperature sensing device. Only the corresponding fire extinguishing system (ie injection nozzle) may be selectively driven.

In addition, the abnormal state data may include identification information on the battery rack corresponding to each of the plurality of BMSs or region information corresponding to each of the plurality of regions divided by the temperature sensing device, and the specific battery in which such an abnormal state is generated. Location information for the rack or a specific area may be delivered to the manager terminal 200 via the EMS. Therefore, the administrator can concentrate more on the specific battery rack or a specific area in which an abnormal condition occurs during on-site dispatch.

On the other hand, the method according to the embodiment of the present invention described above may be implemented in the form of a program readable through various computer means may be recorded on a computer-readable recording medium. Here, the recording medium may include a program command, a data file, a data structure, etc. alone or in combination. Program instructions recorded on the recording medium may be those specially designed and constructed for the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. For example, the recording medium may be magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs, DVDs, or magnetic-optical media such as floptical disks. magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include high-level language wires that can be executed by a computer using an interpreter as well as machine language wires such as those produced by a compiler. Such hardware devices may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the specification includes the details of a number of specific implementations, but these should not be understood as being limited to the scope of any invention or claimable, but rather may be specific to a particular embodiment of a particular invention. It should be understood as a description of the features. Certain features that are described in this specification in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable subcombination. Furthermore, while the features may operate in a particular combination and may be initially depicted as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, the claimed combination being a subcombination Or a combination of subcombinations.

Likewise, although the operations are depicted in the drawings in a specific order, it should not be understood that such operations must be performed in the specific order or sequential order shown in order to obtain desirable results or that all illustrated operations must be performed. In certain cases, multitasking and parallel processing may be advantageous. Moreover, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products. It should be understood that it can.

Specific embodiments of the subject matter described in this specification have been described. Other embodiments are within the scope of the following claims. For example, the actions recited in the claims can be performed in a different order but still achieve desirable results. As an example, the process depicted in the accompanying drawings does not necessarily require that particular illustrated or sequential order to obtain desirable results. In certain implementations, multitasking and parallel processing may be advantageous.

The foregoing description presents the best mode of the invention, and provides examples to illustrate the invention and to enable those skilled in the art to make and use the invention. The specification thus produced is not intended to limit the invention to the specific terms presented. Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art can make modifications, changes and variations to the examples without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the claims rather than by the described embodiments.

Claims (19)

A plurality of battery modules each; A battery rack group including a plurality of battery racks; and a plurality of BMSs managing each of the plurality of battery modules;
A temperature sensing device for detecting temperature information for each region by dividing the battery rack group into a plurality of regions;
PMS for controlling the plurality of BMS and the temperature sensing device,
EMS connected by the PMS and the communication network,
An administrator terminal connected by the EMS and a communication network,
A fire extinguishing device for burning a fire corresponding to each of the plurality of battery racks;
The PMS,
A data collector configured to collect BMS temperature data and BMS voltage data of the battery racks corresponding to the battery racks from the plurality of BMSs, and collect temperature information for each area of the entire battery rack group from the temperature sensing device;
A classification data DB for classifying the BMS temperature data collected through the data collection unit, the BMS voltage data, and temperature information for each region and storing each of them as time series data;
An abnormal state discriminating unit determining an abnormal state when an event exceeding a predetermined temperature value or a voltage value is generated based on the time series data;
An abnormal state DB for storing abnormal state data including a temperature value, a voltage value, an event occurrence time and position information corresponding to each of a series of events determined as an abnormal state by the abnormal state discriminating unit;
And a diagnosis unit configured to generate fire response information for each stage by comparing abnormal state data corresponding to a prior abnormal state and abnormal state data corresponding to a later abnormal state.
The abnormal state discrimination unit determines that the event is in the first abnormal state when an event exceeding a preset temperature value or voltage value occurs, and when the event in excess of the temperature value or voltage value corresponding to the first abnormal state occurs, a later error is detected. It is determined as a state, and the diagnostic unit, the temperature value change rate, voltage value change rate, event occurrence time interval and position information from a plurality of abnormal state data corresponding to a series of events determined as the abnormal state by the abnormal state discriminating unit Extracting abnormal sustain data including the step, and generating fire response information for each stage based on the abnormal sustain data;
The location information includes area information for each location of the plurality of areas in which the temperature sensing device divides the entire battery rack group.
The EMS, after receiving the step-by-step fire response information from the PMS, and delivers the step-by-step fire response information along with the location information for the specific area where the abnormal state occurred in the manager terminal,
The PMS drives the fire extinguishing device corresponding to a plurality of areas divided by the temperature sensing device in a specific battery rack in which a fire is generated according to the step-by-step fire response information generated by the diagnosis unit. , Energy storage device.
delete delete The method of claim 1,
Further comprising a power control device for turning on or off the plurality of BMS,
The PMS is characterized in that for controlling the power control device according to the step-by-step fire response information generated by the diagnostic unit, the energy storage device.
delete delete delete delete delete delete delete delete A battery rack group including a plurality of battery racks and a plurality of BMSs for managing each battery rack; And a temperature sensing device for detecting temperature information for each area by dividing the battery rack group into a plurality of areas.
Collecting BMS temperature data and BMS voltage data of the battery rack corresponding to the plurality of BMSs, and temperature information for each area of the entire battery rack group from the temperature sensing device;
Classifying the collected BMS temperature data, the BMS voltage data, and temperature information for each region, and storing each of them as time series data;
Determining an abnormal state when an event exceeding a preset temperature or voltage value is generated based on the time series data;
Storing abnormal state data including a temperature value, a voltage value, an event occurrence time, and position information corresponding to each of a series of events determined as an abnormal state;
Comprising the abnormal state data corresponding to the priority abnormal state and abnormal state data corresponding to the lower priority abnormal state to generate a step-by-step fire response information,
The determining of the abnormal state may include determining that the abnormal state is a primary abnormal state when an event exceeding a preset temperature or voltage value occurs and exceeding the temperature or voltage value corresponding to the primary abnormal state. Is determined to be a later abnormal state, and the step of generating fire response information for each step includes: temperature value change rate, voltage value change rate, event occurrence time, from a plurality of abnormal state data corresponding to a series of events determined to be an abnormal state. Extracting abnormal continuous data including interval and position information, and generating the fire response information for each stage based on the abnormal continuous data;
The location information includes area information for each location of the plurality of areas in which the temperature sensing device divides the entire battery rack group.
According to the step-by-step fire response information, the step-by-step fire response information along with the location information on the specific area in which the abnormal state has occurred in the manager terminal, or the fire occurs in a plurality of areas divided by the temperature sensing device Fire protection method of the energy storage device, characterized in that for driving a fire extinguishing device corresponding to a specific area.
delete delete The method of claim 13,
And controlling a power control device for turning on or off the plurality of BMSs according to the step-by-step fire response information.
delete delete A computer-readable recording medium having recorded thereon a program for performing a fire prevention method of an energy storage device according to any one of claims 13 and 16.

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