CN114100024A - Energy storage fire safety electric linkage control system and method - Google Patents
Energy storage fire safety electric linkage control system and method Download PDFInfo
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- CN114100024A CN114100024A CN202111226399.1A CN202111226399A CN114100024A CN 114100024 A CN114100024 A CN 114100024A CN 202111226399 A CN202111226399 A CN 202111226399A CN 114100024 A CN114100024 A CN 114100024A
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- A—HUMAN NECESSITIES
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- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
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Abstract
The invention discloses an energy storage fire safety electric linkage control system and method, wherein the method comprises the following steps: step S1, collecting the multi-dimensional detection data of the detectors arranged in each battery cluster in real time; and step S2, acquiring multi-dimensional detection data of the detectors in each battery cluster, analyzing and processing the acquired multi-dimensional detection data, determining the current early warning level according to the detection data, performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station respectively, and generating corresponding control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
Description
Technical Field
The invention relates to the technical field of intelligent control, in particular to an energy storage fire safety electric linkage control system and method.
Background
The stored energy plays a key role in promoting the carbon peak reaching and carbon neutralization targets and ensuring the safe operation of a novel power system mainly constructed by new energy, and is an important support for ensuring the large-scale development of the new energy and the energy safety of China. A plurality of energy storage power station fire accidents occur at home and abroad, and serious casualties are caused by the fact that an APS energy storage power station in the United states in year 4 of 2019 and an APS energy storage power station in the United states in year 4 of 2021 in day 16 of 16, and a Nantetracyclo YouWai Dahong Megashi Miller A14 yard in Toyotai district in Beijing. Safety is a non-negligible factor in the development of electrochemical energy storage. The safety accidents of the energy storage power station are usually caused by the fact that batteries are in thermal runaway or other external factors to cause the batteries to fire under the condition of early warning loss or hysteresis, effective safety protection measures are lacked, initial-stage fire of the batteries rapidly spreads, the existing fire protection system is not configured aiming at the battery fire, two relative independence systems cannot coordinate with other systems to jointly prevent the fire, and therefore the initial-stage fire of the batteries cannot be effectively restrained, and finally the initial-stage fire of the batteries develops into a large-scale fire, so that the whole energy storage container or the energy storage power station is burnt.
Therefore, the fire-fighting system of the current energy storage power station has the following defects: the early warning function is lacked, early warning cannot be carried out, and mutual coordination with each system of the energy storage power station is lacked, so that the fire can not be prevented from spreading or happening together.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an energy storage fire safety electric linkage control system and method, which take the detection alarm of a detector as the basis and interact with an energy storage power station, thereby achieving the functions of early warning and fire extinguishing and preventing the spreading or occurrence of a resistance fire.
In order to achieve the above object, the present invention provides an energy storage fire safety electric linkage control system, comprising:
the detectors are arranged in the battery clusters and used for detecting the battery states in the corresponding battery clusters;
and the fire-fighting linkage control unit is connected with the detectors 101 in each battery cluster and is used for acquiring multi-dimensional detection data of the detectors in each battery cluster, analyzing and processing the acquired multi-dimensional detection data, determining early warning levels according to the detection data, and performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station respectively to generate corresponding early warning control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
Preferably, the fire-fighting linkage control unit further includes:
the data analysis processing module is used for analyzing and processing the multi-dimensional detection data acquired by each detector;
the early warning grade determining module is used for determining the current early warning grade according to the multi-dimensional detection data obtained by each detector and determining the specific occurrence position of the potential safety hazard;
and the early warning signal generation module is used for generating a corresponding early warning control signal to the energy storage control system unit and/or the fire extinguishing system and/or the alarm system according to the current early warning grade determined by the early warning grade determination module, wherein the early warning control signal contains specific occurrence position information of the potential safety hazard.
Preferably, the detector comprises a VOC gas sensor, a combustible gas sensor and a temperature sensor.
Preferably, when the early warning level determining module determines that any one of the multi-dimensional detection data is greater than the corresponding primary early warning threshold and all the data are less than the corresponding secondary early warning threshold, the current early warning level is determined as level 1 early warning; when the combustible gas and VOC data in the multi-dimensional data reach a second-level early warning threshold value or the temperature data reach a second-level early warning threshold value, judging that the current early warning level is 2-level early warning, when the combustible gas, VOC and temperature data in the multi-dimensional data reach a third-level early warning threshold value, judging that the current early warning level is 3-level early warning, and when the current early warning level is determined, the early warning level determination module further determines the specific occurrence position of the potential safety hazard according to the multi-dimensional detection data.
Preferably, when the early warning level determining module determines that the current early warning level is a level 1 early warning, the early warning signal generating module generates a corresponding level one early warning control signal to the energy storage control system unit, controls the energy storage control system unit to control the PCS system, isolates and disconnects the battery cluster with the potential safety hazard, controls the PCS energy storage converter to operate in a power limiting mode, generates a level one early warning control signal to the warning system, and controls the audible and visual alarm of the warning system to prompt buzzing and light flashing for warning.
Preferably, when the early warning level determining module determines that the current early warning level is a level 2 early warning, the early warning signal generating module generates a second-level early warning control signal to the alarm system and the fire extinguishing system, controls the audible and visual alarm and the lamp flash of the alarm system to give an alarm, controls the fire extinguishing system to independently spray a fire extinguishing agent to a battery cluster in thermal runaway, and simultaneously generates the second-level early warning control signal to indicate the energy storage control system unit to control the energy storage converter of the PCS system to stop working, control the disconnection of a contactor between the battery and the PCS energy storage, and control the power failure of the BMS system and the shutdown of the air conditioning system.
Preferably, when the early warning level determining module determines that the current early warning level is 3-level early warning, the early warning signal generating module generates a three-level early warning control signal to control the gas fire extinguishing agent of the fire extinguishing system to be sprayed into the space and to control the audible and visual alarm lamp of the alarm system to flash and buzz and the gas fire extinguishing agent spraying indicator lamp to be normally on, and simultaneously generates a three-level early warning control signal to the energy storage control system unit to control the whole container to be powered off.
Preferably, the system further comprises a fire-fighting manual button, when the fire-fighting manual button is pressed, a trigger signal is generated to the fire-fighting linkage control unit, and the fire-fighting linkage control unit generates a forced early warning signal to the energy storage control system unit, the fire extinguishing system and the alarm system according to the trigger signal.
Preferably, when the fire extinguishing agent is misoperated, the fire-fighting linkage control unit generates a forced early warning stop signal to the fire extinguishing system and the alarm system according to the trigger stop signal generated by the fire-fighting manual button within the countdown time for the fire extinguishing agent spraying, controls the fire extinguishing agent to stop spraying, and controls the audible and visual alarm and the fire extinguishing agent spraying indicator lamp to stop spraying.
In order to achieve the purpose, the invention also provides an energy storage fire safety electric linkage control method, which comprises the following steps:
step S1, collecting the multi-dimensional detection data of the detectors arranged in each battery cluster in real time;
and step S2, acquiring multi-dimensional detection data of the detectors in each battery cluster, analyzing and processing the acquired multi-dimensional detection data, determining the current early warning level according to the detection data, performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station respectively, and generating corresponding control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the fire-fighting manual button is matched with the detector data, so that not only can the starting of misoperation prevention be prevented, but also the fire-fighting system can be better started in case of fire.
(2) The fire fighting system is linked with the energy storage control system to control each electric appliance, so that the spread and the diffusion of fire are prevented.
(3) The invention reduces the loss by controlling the fire extinguishing agent to be sprayed to the battery cluster or the space according to the alarm level.
Drawings
FIG. 1 is a schematic diagram of a system structure of an energy storage fire safety electric linkage control system according to the present invention;
FIG. 2 is a flow chart illustrating the steps of the method for controlling the linkage of the energy storage fire safety electric device according to the present invention;
FIG. 3 is a schematic diagram of a container-type energy storage power station to which the present invention is applied;
FIG. 4 is a flow chart of an embodiment of the present invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
Fig. 1 is a schematic system structure diagram of an energy storage fire safety electric linkage control system according to the present invention. As shown in fig. 1, the invention relates to an energy storage fire safety electric linkage control system, comprising:
and the detector 101 is arranged in each battery cluster and used for detecting the state of the battery in each battery cluster, and the detector 101 is connected with the fire-fighting linkage control unit 102 for information interaction. In an embodiment of the present invention, the detector 101 is a composite detector capable of detecting gas and temperature, and specifically, the detector 101 may include a plurality of sensors such as a VOC gas sensor, a combustible gas sensor (e.g., H2, CO), and a temperature sensor.
And the fire-fighting linkage control unit 102 is connected with the detectors 101 in each battery cluster and is used for acquiring detection data of the detectors 101 in each battery cluster, analyzing and processing the acquired detection data, performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station according to the severity of the detection data, and generating corresponding control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
Specifically, the fire-fighting linkage control unit 102 further includes:
and the data analysis processing module 1021 is configured to perform analysis processing on the multi-dimensional detection data acquired by the detector 101.
In the embodiment of the present invention, since the detector 101 includes the VOC gas sensor, the combustible gas sensor (e.g., H2, CO) and the temperature sensor, the data collected by the detector 101 is multi-dimensional detection data, and after the multi-dimensional detection data is transmitted to the data analyzing and processing module 1021, the data analyzing and processing module 1021 analyzes and processes the multi-dimensional detection data of the detector.
The early warning level determining module 1022 is configured to determine a current early warning level according to the obtained multidimensional detection data, and determine a specific occurrence position of the potential safety hazard.
Specifically, when the early warning level determining module 1022 determines that any one of the multi-dimensional detection data is greater than the corresponding primary early warning threshold and all the data are less than the corresponding secondary early warning threshold, it determines that the current early warning level is a level 1 early warning; when the combustible gas (H2, CO) and VOC data in the multi-dimensional data reach a second-level early warning threshold value simultaneously or the temperature reaches a second-level early warning threshold value, the current early warning level is judged to be 2-level early warning, and when the combustible gas, the VOC and the temperature in the multi-dimensional data reach a third-level early warning threshold value simultaneously, the current early warning level is judged to be 3-level early warning. While determining the current warning level, the warning level determining module 1022 may also determine a specific occurrence location of the potential safety hazard according to the multidimensional data, for example, which battery cluster the potential safety hazard specifically occurs in.
In the invention, the determination of the alarm grade of the energy storage power station is determined according to the response values of multiple sensors, different alarm grades are realized by reaching different threshold values through the sensors, the detector contains a VOC gas sensor, a combustible gas sensor (such as H2 and CO) and a temperature sensor, the collected multidimensional data comprises VOC data, combustible gas data (such as H2 and CO) and temperature data, and the specific alarm grade and the corresponding early warning threshold values of each grade are as follows:
grade 1, i.e. the combustible gas is increased or the VOC value is increased or the temperature reaches the index, and the early smoldering stage of the electrical fire, the electrolyte leakage accident or the early stage of the thermal accident are judged.
And 2, judging that the thermal runaway of the single battery occurs when the data of combustible gas and VOC reach the index or the temperature reaches the index.
And 3, judging that the combustible gas, VOC data and temperature data reach indexes and are in a large-scale fire stage of the energy storage power station.
The early warning signal generation module 1023 is used for generating an early warning grade according to the early warning grade determined by the early warning grade determination module 1022 to generate a corresponding early warning control signal to the energy storage control system unit and/or the fire extinguishing system and/or the alarm system, wherein the early warning control signal contains specific occurrence position information of the potential safety hazard.
When the early warning level determining module 1022 determines that the current early warning level is a level-1 early warning, that is, the data value of a detector in a certain battery cluster reaches a corresponding level-1 early warning threshold value a, the early warning signal generating module 1023 generates a corresponding level-1 early warning control signal to the energy storage control system unit 103, the energy storage control system unit is controlled to control the PCS system, the battery cluster with potential safety hazard is isolated and disconnected, the battery cluster does not participate in the operation of the energy storage power station and controls the PCS energy storage converter to operate in a power-limiting manner, a worker checks the safety of the battery cluster, meanwhile, the early warning signal generating module 1023 generates a level-1 early warning control signal to the warning system, and the audible and visual alarm and the lamp flash of the warning system are controlled to give an alarm; when the early warning level determining module 1022 determines that the current early warning level is level 2 early warning, that is, the data value of the detector in a certain battery cluster reaches the corresponding second-level early warning threshold b, it is determined that the battery in the battery cluster is out of control due to heat, the fire safety electrical linkage control system of the energy storage system sends out a second-level alarm, the early warning signal generating module 1023 generates a second-level early warning control signal to the alarm system and the fire extinguishing system, thereby controlling the audible and visual alarm of the alarm system to rapidly buzz and flash to give an alarm, controlling the fire extinguishing system to independently spray the fire extinguishing agent to the battery cluster with thermal runaway, meanwhile, a secondary early warning control signal is generated, so that the energy storage control system unit controls an energy storage converter of the PCS system to stop working, a contactor between the battery and the PCS energy storage is disconnected, the energy storage of the whole container is isolated, and the BMS system is controlled to be powered off and the air conditioning system is controlled to be closed; when the early warning level determining module 1022 determines that the current early warning level is 3-level early warning, that is, the data value of a detector in a certain battery cluster reaches a corresponding three-level early warning threshold value c, it is considered that large-scale thermal runaway occurs in the space of the energy storage power station at this moment, the early warning signal generating module 1023 sends out a three-level early warning control signal to control the fire extinguishing system to spray fire gas extinguishing agent into the space and control the audible and visual alarm lamp buzzing of the alarm system, and the gas extinguishing agent spraying indicator lamp is normally on, and meanwhile, the early warning signal generating module 1023 generates a three-level early warning control signal to the energy storage control system unit to control the whole container to be powered off.
Preferably, the energy storage fire safety electric linkage control system further comprises a fire manual button 103, the fire manual button is connected with the fire linkage control unit 102, when a user presses the fire manual button, a trigger signal is generated to the fire linkage control unit 102, and the fire linkage control unit 102 generates a forced early warning signal to the energy storage control system unit, the fire extinguishing system and the alarm system according to the trigger signal. Specifically, when a fire-fighting manual button is pressed, the fire-fighting linkage control unit 102 generates a forced early warning signal to the energy storage control system unit, the energy storage control system unit forces the PCS energy storage converter to stop working, a contactor between the battery and the PCS energy storage is disconnected, and the BMS system is controlled to be powered off and the air conditioning system is controlled to be turned off; the fire-fighting linkage control unit 102 also generates a forced early warning signal to the alarm system and the fire-extinguishing system, controls the audible and visual alarm to give an alarm, controls the fire extinguishing agent to perform spraying countdown (countdown time can be set), and lights the fire extinguishing agent spraying indicator lamp.
Preferably, when the fire extinguishing system is in misoperation, the stop button can be manually pressed within the countdown time of fire extinguishing agent discharge, the fire-fighting linkage control unit 102 generates a forced early warning stop signal to the fire extinguishing system and the alarm system according to the trigger signal to control the fire extinguishing agent discharge stop, and the audible and visual alarm and the fire extinguishing agent discharge indicator lamp stop, at this moment, the forced early warning stop signal is not sent to the energy storage control system unit, that is, the PCS energy storage converter, the BMS system and the air conditioning system need to be manually recovered under the condition of safety confirmation.
Fig. 2 is a flow chart illustrating steps of an energy storage fire safety electric linkage control method according to the present invention. As shown in FIG. 2, the invention relates to an energy storage fire safety electric linkage control method, which comprises the following steps:
and step S1, acquiring the multi-dimensional detection data of the detectors installed in each battery cluster in real time.
In the embodiment of the invention, the detector is a composite detector which can detect gas and temperature, specifically, the detector can comprise a VOC gas sensor, a combustible gas sensor (such as H2 and CO) and a temperature sensor, and the detectors collect multi-dimensional detection data and transmit the data to the fire-fighting linkage control unit.
And step S2, acquiring multi-dimensional detection data of the detectors in each battery cluster, analyzing and processing the acquired multi-dimensional detection data, determining the current early warning level according to the detection data, performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station respectively, and generating corresponding control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
Specifically, step S2 further includes:
and step S200, analyzing and processing the multi-dimensional detection data acquired by the detector.
In the embodiment of the invention, because the detector contains the VOC gas sensor, the combustible gas sensor (e.g., H2, CO) and the temperature sensor, the data collected by the detector is multidimensional data, and the multidimensional data of the detector needs to be analyzed and processed.
Step S201, determining the current early warning level according to the obtained multi-dimensional data, and determining the specific occurrence position of the potential safety hazard.
Specifically, when any one of the multi-dimensional data is judged to be larger than the corresponding primary early warning threshold value and all the data are smaller than the corresponding secondary early warning threshold value, the current early warning level is judged to be 1-level early warning; when the combustible gas (H2, CO) and VOC data in the multi-dimensional data reach a second-level early warning threshold value simultaneously or the temperature reaches a second-level early warning threshold value, the current early warning level is judged to be 2-level early warning, and when the combustible gas, the VOC and the temperature in the multi-dimensional data reach a third-level early warning threshold value simultaneously, the current early warning level is judged to be 3-level early warning. When the current early warning level is determined, the specific occurrence position of the potential safety hazard, such as which battery cluster the potential safety hazard specifically occurs, can be determined according to the multidimensional data.
In the invention, the determination of the alarm grade of the energy storage power station is determined according to the response values of multiple sensors, different alarm grades are realized by reaching different threshold values through the sensors, the detector contains a VOC gas sensor, a combustible gas sensor (such as H2 and CO) and a temperature sensor, the collected multidimensional data comprises VOC data, combustible gas data (such as H2 and CO) and temperature data, and the specific alarm grade and the corresponding early warning threshold values of each grade are as follows:
grade 1, i.e. the combustible gas is increased or the VOC value is increased or the temperature reaches the index, and the early smoldering stage of the electrical fire, the electrolyte leakage accident or the early stage of the thermal accident are judged.
And 2, judging that the thermal runaway of the single battery occurs when the data of combustible gas and VOC reach the index or the temperature reaches the index.
And 3, judging that the combustible gas, VOC data and temperature data reach indexes and are in a large-scale fire stage of the energy storage power station.
And S202, generating an early warning grade according to the early warning grade determined in the step S201, and generating a corresponding early warning control signal to an energy storage control system unit and/or a fire extinguishing system and/or an alarm system, wherein the early warning control signal contains specific occurrence position information of the potential safety hazard.
When the current early warning level is determined to be a level 1 early warning level in step S201, that is, the data value of a detector in a certain battery cluster reaches a corresponding level one early warning threshold value a, a corresponding level one early warning control signal is generated to the energy storage control system unit, the energy storage control system unit is controlled to control the PCS system, the battery cluster with potential safety hazard is isolated and disconnected, the battery cluster does not participate in the operation of the energy storage power station, the PCS energy storage converter is controlled to operate in a power-limited mode, a worker performs safety check on the battery cluster, and meanwhile, a level one early warning control signal is generated to the warning system to control the audible and visual alarm of the warning system to prompt buzzing and light flashing to give an alarm; when the current early warning level is determined to be 2-level early warning in step S201, that is, the data value of a detector in a certain battery cluster reaches a corresponding second-level early warning threshold b, at this time, it is considered that a battery in the battery cluster is out of control, the energy storage system fire safety electrical linkage control system sends out a second-level alarm, and a second-level early warning control signal is generated to the alarm system and the fire extinguishing system, so as to control the audible and visual alarm of the alarm system to alarm suddenly and flash, control the fire extinguishing system to independently spray fire extinguishing agent to the battery cluster in which the out of control is generated, and generate a second-level early warning control signal to indicate an energy storage control system unit to control an energy storage converter of a PCS system to stop working, disconnect a contactor between the battery and the PCS energy storage, isolate the energy storage of the whole container, and control the BMS system to power off and the air conditioning system to stop; when the current early warning level is determined to be 3-level early warning in step S201, that is, the data value of the detector in a certain battery cluster reaches a corresponding three-level early warning threshold value c, it is determined that large-scale thermal runaway occurs in the space of the energy storage power station, at this time, a three-level early warning control signal is sent out to control the gas fire extinguishing agent of the fire extinguishing system to be sprayed into the space, the audible and visual alarm lamp of the alarm system to be buzzed and the gas fire extinguishing agent spraying indicator lamp to be normally on, and meanwhile, a three-level early warning control signal is also generated to the energy storage control system unit to control the whole container to be powered off.
Preferably, when a trigger signal of a fire-fighting manual button pressed by a user is received, a forced early warning signal is generated to the energy storage control system unit, the fire extinguishing system and the alarm system according to the trigger signal. Specifically, when a fire-fighting manual button is pressed, the fire-fighting linkage control unit generates a forced early warning signal to the energy storage control system unit at the moment, the energy storage control system unit forces the PCS energy storage converter to stop working, a contactor between the battery and the PCS energy storage is disconnected, and the BMS system is controlled to be powered off and the air conditioning system is controlled to be turned off; the fire-fighting linkage control unit also generates a forced early warning signal to the alarm system and the fire extinguishing system, controls the audible and visual alarm to give an alarm, controls the fire extinguishing agent to perform spraying countdown (countdown time can be set), and lights the fire extinguishing agent spraying indicator lamp.
Preferably, when the fire extinguishing agent is in misoperation, the stop button can be manually pressed within the countdown time of fire extinguishing agent spraying, the fire-fighting linkage control unit generates a forced early warning stop signal to the fire extinguishing system and the alarm system according to the trigger signal to control the fire extinguishing agent to stop spraying, and the audible and visual alarm and the fire extinguishing agent spraying indicator lamp stop, at the moment, the forced early warning stop signal is not sent to the energy storage control system unit, that is, the PCS energy storage converter, the BMS system and the air conditioning system need to be manually recovered under the condition of safety confirmation.
Examples
Fig. 3 is a schematic diagram of a container type energy storage power station to which the present invention is applied, in which 1 is a power grid, 2 is an audible and visual alarm, 3 is a fire extinguishing agent spraying indicator, 4 is a container including N containers, 5 is a PCS energy storage converter, 6 is a fire-fighting energy storage control host, i.e., a fire-fighting linkage control unit, which is disposed in each container, a plurality of battery clusters 7 are disposed in each container, 8 is a detector disposed in each battery cluster, 9 is a small fire extinguishing agent storage tank, 10 is a large fire extinguishing agent storage tank, 11 is a fire-fighting pipeline, 12 is a fire extinguishing agent nozzle, 13 is a BMS system, and 14 is an air conditioning system.
Fig. 4 is a flowchart of the energy storage fire safety electric linkage control in the automatic mode according to the embodiment of the present invention. In an automatic mode, the fire-fighting linkage control unit analyzes and processes data from the detector, the data are divided into primary early warning, secondary early warning and tertiary early warning according to the severity of detected data, when the data value of the detector in a certain battery cluster reaches a corresponding primary early warning threshold value a, the primary early warning is generated, namely, a corresponding primary early warning control signal is generated to the energy storage control system unit 103, the energy storage control system unit is controlled to control the PCS system to isolate and disconnect the battery cluster with potential safety hazards, the battery cluster does not participate in the operation of the energy storage power station and controls the PCS energy storage converter to operate in a power limiting mode, a worker carries out safety check on the battery cluster, and simultaneously generates a primary early warning control signal to the alarm system to control the audible and visual alarm of the alarm system to prompt buzzing and light flashing to give an alarm; when the data value of a detector in a certain battery cluster reaches a corresponding secondary early warning threshold value b, a secondary alarm is generated, the battery in the battery cluster is considered to be out of control due to heat, the fire safety electrical linkage control system of the energy storage system sends the secondary alarm, and a secondary early warning control signal is generated to the alarm system and the fire extinguishing system, so that an audible and visual alarm of the alarm system is controlled to alarm due to sudden buzzing and light flashing, the fire extinguishing system is controlled to independently spray fire extinguishing agents to the battery cluster in which the out of control due to heat is generated, meanwhile, the secondary early warning control signal is generated to indicate an energy storage control system unit to control an energy storage converter of the PCS system to stop working, a contactor between the battery and the PCS energy storage is disconnected, the energy storage of the whole container is isolated, and the BMS system is controlled to be powered off and the air conditioning system is controlled to be turned off; when the data value of a detector in a certain battery cluster reaches a corresponding three-level early warning threshold value c, three-level warning is generated, large-scale thermal runaway is considered to occur in the space of the energy storage power station at the moment, a three-level early warning control signal is sent out to control the gas fire extinguishing agent of the fire extinguishing system to be sprayed into the space and control the audible and visual alarm lamp of the alarm system to flash and buzz and the gas fire extinguishing agent spraying indicator lamp to be normally on, and meanwhile, a three-level early warning control signal is also generated to the energy storage control system unit to control the whole container to be powered off.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (10)
1. An energy storage fire safety electrical linkage control system, comprising:
the detectors are arranged in the battery clusters and used for detecting the battery states in the corresponding battery clusters;
and the fire-fighting linkage control unit is connected with the detectors 101 in each battery cluster and is used for acquiring multi-dimensional detection data of the detectors in each battery cluster, analyzing and processing the acquired multi-dimensional detection data, determining early warning levels according to the detection data, and performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station respectively to generate corresponding early warning control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
2. The energy-storing fire safety electric linkage control system of claim 1, wherein the fire control linkage control unit further comprises:
the data analysis processing module is used for analyzing and processing the multi-dimensional detection data acquired by each detector;
the early warning grade determining module is used for determining the current early warning grade according to the multi-dimensional detection data obtained by each detector and determining the specific occurrence position of the potential safety hazard;
and the early warning signal generation module is used for generating a corresponding early warning control signal to the energy storage control system unit and/or the fire extinguishing system and/or the alarm system according to the current early warning grade determined by the early warning grade determination module, wherein the early warning control signal contains specific occurrence position information of the potential safety hazard.
3. The energy-storing fire safety electric linkage control system according to claim 2, wherein the detector comprises a VOC gas sensor, a combustible gas sensor and a temperature sensor.
4. The energy storage fire safety electric linkage control system according to claim 3, wherein when the early warning level determination module determines that any one of the multi-dimensional detection data is larger than the corresponding primary early warning threshold and all the data are smaller than the corresponding secondary early warning threshold, the current early warning level is determined to be a level 1 early warning; when the combustible gas and VOC data in the multi-dimensional data reach a second-level early warning threshold value or the temperature data reach a second-level early warning threshold value, judging that the current early warning level is 2-level early warning, when the combustible gas, VOC and temperature data in the multi-dimensional data reach a third-level early warning threshold value, judging that the current early warning level is 3-level early warning, and when the current early warning level is determined, the early warning level determination module further determines the specific occurrence position of the potential safety hazard according to the multi-dimensional detection data.
5. The energy-storage fire-fighting safety electric linkage control system according to claim 4, wherein when the early warning level determining module determines that the current early warning level is a level-1 early warning, the early warning signal generating module generates a corresponding level-1 early warning control signal to the energy-storage control system unit, and the energy-storage control system unit is controlled to control the PCS system, isolate and disconnect a battery cluster with potential safety hazard, control the PCS energy-storage converter to operate in a power-limiting mode, generate a level-1 early warning control signal to the alarm system, and control the audible and visual alarm of the alarm system to alarm in a sudden and sudden manner.
6. The energy-storage fire-fighting safety electric linkage control system according to claim 4, wherein when the early warning level determining module determines that the current early warning level is a level-2 early warning, the early warning signal generating module generates a secondary early warning control signal to the alarm system and the fire extinguishing system, controls an audible and visual alarm of the alarm system to alarm suddenly and flash light, and controls the fire extinguishing system to independently discharge fire extinguishing agents to a battery cluster in which thermal runaway occurs, and generates the secondary early warning control signal to indicate that the energy storage control system unit controls an energy storage converter of the PCS system to stop working, controls a contactor between the battery and the PCS energy storage to be disconnected, and controls a BMS system to be powered off and an air conditioning system to be powered off.
7. The energy-storing fire-fighting safety electric linkage control system according to claim 4, characterized in that: when the early warning level determining module determines that the current early warning level is 3-level early warning, the early warning signal generating module generates three-level early warning control signals to control the gas fire extinguishing agent of the fire extinguishing system to be sprayed into the space and control the audible and visual alarm lamp of the alarm system to buzz and the gas fire extinguishing agent spraying indicator lamp to be normally on, and simultaneously generates three-level early warning control signals to the energy storage control system unit to control the whole container to be powered off.
8. The energy-storing fire-fighting safety electric linkage control system according to claim 1, characterized in that: the system also comprises a fire-fighting manual button, when the fire-fighting manual button is pressed, a trigger signal is generated to the fire-fighting linkage control unit, and the fire-fighting linkage control unit generates a forced early warning signal to the energy storage control system unit, the fire extinguishing system and the alarm system according to the trigger signal.
9. The energy-storing fire-fighting safety electric linkage control system according to claim 8, characterized in that: when misoperation occurs, in the countdown time of fire extinguishing agent spraying, the fire-fighting linkage control unit generates a forced early warning stop signal to the fire extinguishing system and the alarm system according to the trigger stop signal generated by the fire-fighting manual button, controls the fire extinguishing agent to stop spraying, and controls the audible and visual alarm and the fire extinguishing agent spraying indicator lamp to stop.
10. An energy storage fire safety electric linkage control method comprises the following steps:
step S1, collecting the multi-dimensional detection data of the detectors arranged in each battery cluster in real time;
and step S2, acquiring multi-dimensional detection data of the detectors in each battery cluster, analyzing and processing the acquired multi-dimensional detection data, determining the current early warning level according to the detection data, performing information communication with an energy storage control system unit, a fire extinguishing system and an alarm system of the energy storage power station respectively, and generating corresponding control signals to the energy storage control system unit, the fire extinguishing system and the alarm system to perform corresponding action control.
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