CN-121994523-A - Fire extinguishing performance testing device of fire extinguishing system for energy storage system

CN121994523ACN 121994523 ACN121994523 ACN 121994523ACN-121994523-A

Abstract

The invention provides a fire extinguishing performance testing device of a fire extinguishing system for an energy storage system, which relates to the technical field of fire extinguishing performance testing and comprises a basic characteristic parameter acquisition module, a testing scheme intelligent generation module, a runaway testing working condition simulation module, a multidimensional parameter acquisition monitoring module and a fire extinguishing performance evaluation analysis module. The intelligent test scheme generating module can generate a targeted dynamic time sequence test scheme by constructing an individual characteristic parameter set of the tested energy storage system through the basic characteristic parameter acquiring module, so that the accurate matching of the test scheme and the actual working condition of the energy storage system and the dynamic simulation of the whole thermal runaway process are realized, the three-dimensional comprehensive evaluation of the fire extinguishing efficiency, the cooling performance and the decontamination efficiency is realized through the multi-dimensional parameter acquisition monitoring module and the fire extinguishing performance evaluation analysis module, the optimal fire control strategy is automatically output based on the evaluation node distance, and the intelligent level and the engineering application value of the test device are improved.

Inventors

ZHANG XIAOLONG
REN YONGFENG
LIU PENG
HE BIN

Assignees

三峡新能源四子王旗有限公司
内蒙古工业大学

Dates

Publication Date: 20260508
Application Date: 20260410

Claims (9)

1. The fire extinguishing performance testing device of the fire extinguishing system for the energy storage system is characterized by comprising the following components: The basic characteristic parameter acquisition module is used for acquiring a characteristic parameter set of the measured energy storage system, wherein the characteristic parameter set of the measured energy storage system comprises a battery cell layer parameter, a battery module layer parameter and an energy storage system layer parameter of the measured energy storage system; The intelligent test scheme generating module is used for generating reference cases corresponding to the tested energy storage system based on the characteristic parameter set of the tested energy storage system and the characteristic matrix library of the historical thermal runaway energy storage system, generating test environment working condition time sequence vectors and test thermal runaway characteristic time sequence vectors of the tested energy storage system in each thermal runaway triggering mode based on accident records of each reference case, and generating a test scheme of the tested energy storage system; The out-of-control test working condition simulation module is used for carrying out environment working condition simulation based on the test environment working condition time sequence vectors of the tested energy storage system in each thermal out-of-control trigger mode, carrying out thermal out-of-control characteristic simulation based on the test thermal out-of-control characteristic time sequence vectors of the tested energy storage system in each thermal out-of-control trigger mode, and carrying out fire-fighting working condition simulation through the fire extinguishing system of the tested energy storage system; The multi-dimensional parameter acquisition monitoring module is used for acquiring fire-extinguishing related parameters, cooling related parameters and decontamination related parameters of a fire-extinguishing system of the tested energy storage system under different fire-extinguishing parameters of different thermal runaway triggering modes in the runaway test working condition simulation process; The fire extinguishing performance evaluation analysis module is used for evaluating the fire extinguishing efficiency, the cooling performance and the decontamination efficiency of the fire extinguishing system of the tested energy storage system under different fire extinguishing parameters of different thermal runaway triggering modes based on the fire extinguishing related parameters, the cooling related parameters and the decontamination related parameters, and finding out the comprehensive performance optimal fire extinguishing strategy under the corresponding thermal runaway triggering modes.
2. The fire extinguishing performance testing device for the energy storage system according to claim 1, wherein the basic characteristic parameter acquisition module comprises: the battery cell layer parameter acquisition submodule is used for acquiring the type of a positive electrode material of a battery cell, the electrolyte component of the battery cell, the rated capacity of the battery cell and the energy density of the battery cell; The battery module layer parameter obtaining submodule is used for obtaining the cooling structure type of the battery module, the distance between adjacent battery cells in the battery module, the heat insulation measure type of the battery module and the design parameter of a pressure release valve of the battery module; The energy storage system layer parameter acquisition sub-module is used for acquiring the expected operating environment temperature range of the energy storage system, the installation site type of the energy storage system and the expected charge and discharge multiplying power characteristics of the energy storage system.
3. The fire extinguishing performance testing device of the fire extinguishing system for the energy storage system of claim 1, wherein the intelligent test scheme generating module comprises: The feature vector construction submodule is used for constructing a battery monomer feature vector, a battery module feature vector and an energy storage system feature vector of the measured energy storage system based on a feature parameter set of the measured energy storage system, and combining the battery monomer feature vector, the battery module feature vector and the energy storage system feature vector into a measured energy storage system feature matrix according to a fixed sequence; The case comparison screening submodule is used for calculating weighted cosine similarity of the feature matrix of the measured energy storage system and the feature matrix of each historical thermal runaway energy storage system in the feature matrix library of the historical thermal runaway energy storage system, and screening out the highest weighted cosine similarity based on each weighted cosine similarity The historical cases corresponding to the characteristic matrixes of the historical thermal runaway energy storage systems are taken as reference cases; the test feature vector generation sub-module is used for generating a test environment working condition time sequence vector and a test thermal runaway feature time sequence vector of the tested energy storage system in each thermal runaway triggering mode based on accident records of each reference case in the historical thermal runaway energy storage system feature matrix library; The test scheme generation sub-module is used for generating a test scheme based on the test environment working condition time sequence vector and the test thermal runaway characteristic time sequence vector of the tested energy storage system under each thermal runaway triggering mode.
4. The fire extinguishing performance testing apparatus for a fire extinguishing system for an energy storage system according to claim 3, wherein the feature vector construction submodule comprises: The battery cell feature vector construction unit is used for constructing a battery cell feature vector of the measured energy storage system based on the positive electrode material type of the battery cell in the feature parameter set of the measured energy storage system, the electrolyte component of the battery cell, the rated capacity of the battery cell and the energy density of the battery cell; the battery module feature vector construction unit is used for constructing a battery module feature vector of the tested energy storage system based on the cooling structure type of the battery module in the feature parameter set of the tested energy storage system, the distance between adjacent battery monomers in the battery module, the heat insulation measure type of the battery module and the design parameters of a pressure release valve of the battery module; The energy storage system feature vector construction unit is used for constructing an energy storage system feature vector of the measured energy storage system based on the expected operation environment temperature range of the energy storage system in the feature parameter set of the measured energy storage system, the installation site type of the energy storage system and the expected charge and discharge multiplying power feature of the energy storage system; the energy storage system feature matrix construction unit is used for combining the battery monomer feature vector, the battery module feature vector and the energy storage system feature vector of the measured energy storage system into the measured energy storage system feature matrix according to a fixed sequence.
5. The fire extinguishing performance testing apparatus for a fire extinguishing system for an energy storage system according to claim 3, wherein the test feature vector generating submodule includes: The accident record extraction subunit extracts the thermal runaway accident record of each reference case, the historical environment working condition parameter set in the thermal runaway process, the historical thermal runaway characteristic parameter set and the historical fire extinguishing performance evaluation value after the thermal runaway is finished from the historical thermal runaway energy storage system characteristic matrix library, and determines a corresponding thermal runaway triggering mode based on the thermal runaway accident record; The time sequence vector generation unit is used for respectively generating a historical environmental condition parameter time sequence vector and a historical thermal runaway characteristic parameter time sequence vector corresponding to each reference case based on the historical environmental condition parameter set and the historical thermal runaway characteristic parameter set in the thermal runaway process of each reference case; And the weighted centroid calculation subunit calculates the test environment working condition time sequence vector and the test thermal runaway characteristic time sequence vector of the tested energy storage system under the corresponding thermal runaway triggering modes by adopting a weighted centroid method according to all the reference cases with the same thermal runaway triggering modes.
6. The fire extinguishing performance testing device of the fire extinguishing system for the energy storage system according to claim 1, wherein the out-of-control test condition simulation module comprises: the environment working condition simulation sub-module is used for adjusting the temperature, the humidity and the salt fog concentration in the cabin according to the time sequence of the time sequence vector of the test environment working condition of the tested energy storage system under each thermal runaway triggering mode; The thermal runaway characteristic simulation sub-module is used for executing corresponding triggering actions according to time sequence based on the test thermal runaway characteristic time sequence vector of the tested energy storage system in each thermal runaway triggering mode, wherein the triggering actions comprise overcharge triggering, heating triggering, needling triggering or external burning triggering; And the fire-fighting working condition simulation sub-module is used for regulating and executing fire-fighting parameters corresponding to the fire-fighting system of the tested energy storage system in different thermal runaway triggering modes.
7. The fire extinguishing performance testing apparatus of a fire extinguishing system for an energy storage system according to claim 6, wherein the thermal runaway characteristic simulation submodule comprises: The basic operation parameter simulation unit is used for controlling basic operation parameters of the tested energy storage system according to time sequences based on the energy storage system voltage time sequence, the current time sequence, the power time sequence, the temperature time sequence, the SOC time sequence and the internal resistance time sequence in the tested thermal runaway characteristic time sequence vector of the tested energy storage system in each thermal runaway triggering mode; The overcharge trigger simulation unit is used for executing overcharge trigger simulation according to time sequence based on the equivalent charging rate time sequence, the equivalent BMS voltage protection threshold time sequence and the equivalent BMS temperature protection threshold time sequence in the test thermal runaway characteristic time sequence vector when the thermal runaway trigger mode is overcharge trigger; a heating trigger simulation unit for performing heating trigger simulation according to time sequence based on the equivalent heating power density time sequence and the equivalent heat source temperature time sequence in the test thermal runaway characteristic time sequence vector when the thermal runaway trigger mode is heating trigger; the needling trigger simulation unit is used for executing needling trigger simulation according to time sequence based on the equivalent needling degree time sequence in the test thermal runaway characteristic time sequence vector when the thermal runaway trigger mode is needling trigger; and the external fire trigger simulation unit is used for executing external fire trigger simulation according to the time sequence based on the equivalent flame temperature time sequence and the equivalent heat flow density time sequence in the test thermal runaway characteristic time sequence vector when the thermal runaway trigger mode is external fire trigger.
8. The fire extinguishing performance testing device of the fire extinguishing system for the energy storage system of claim 1, wherein the multidimensional parameter acquisition and monitoring module comprises: The fire-extinguishing related parameter acquisition submodule is used for acquiring the open fire state time sequence of the tested energy storage system, the flame area time sequence of the tested energy storage system, the starting time of the fire extinguishing system and the open fire extinguishing time of the fire extinguishing system in the fire extinguishing process from the start of the thermal runaway triggering to the end of fire extinguishing under different fire extinguishing parameters of different thermal runaway triggering modes of the fire extinguishing system; The temperature-reduction related parameter acquisition sub-module is used for acquiring a temperature time sequence of the measured energy storage system, a peak temperature of the measured energy storage system, a temperature reduction rate of the measured energy storage system and a thermal runaway propagation speed of the measured energy storage system in a fire extinguishing process from the start of thermal runaway triggering to the end of fire extinguishing under different fire extinguishing parameters of different thermal runaway triggering modes; And the decontamination related parameter acquisition sub-module is used for acquiring the decontamination process from the end of fire extinguishment to the end of monitoring of the fire extinguishment system of the tested energy storage system under different fire extinguishment parameters of different thermal runaway triggering modes, wherein the gas concentration time sequence in the cabin, the smoke diffusion range time sequence in the cabin and the bilge electrolyte leakage detection result are obtained.
9. The fire extinguishing performance testing device of the fire extinguishing system for the energy storage system according to claim 8, wherein the fire extinguishing performance evaluation analysis module comprises: The evaluation value acquisition submodule is used for respectively inputting fire-extinguishing related parameters, cooling related parameters and decontamination related parameters acquired by the fire-extinguishing system of the tested energy storage system under different fire-extinguishing parameters of different thermal runaway triggering modes into a pre-trained fire-extinguishing efficiency evaluation model, a pre-trained cooling performance evaluation model and a pre-decontamination performance evaluation model corresponding to different thermal runaway triggering modes to obtain a fire-extinguishing efficiency evaluation value, a cooling performance evaluation value and a decontamination performance evaluation value of the fire-extinguishing system of the tested energy storage system under different fire-extinguishing parameters of different thermal runaway triggering modes; The performance space construction submodule is used for constructing a three-dimensional performance space coordinate system corresponding to different thermal runaway triggering modes, and mapping a fire extinguishing efficiency evaluation value, a cooling performance evaluation value and a decontamination performance evaluation value which are obtained by each test under different fire extinguishing parameters into the three-dimensional performance space coordinate system corresponding to the thermal runaway triggering modes to form evaluation nodes of each test under different fire extinguishing parameters; And the fire control strategy optimization sub-module is used for calculating the distances from each evaluation node in the three-dimensional performance space coordinate system corresponding to different thermal runaway triggering modes to the coordinate origin of the corresponding three-dimensional performance space coordinate system after the fire extinguishing systems of all the tested energy storage systems are tested under different fire extinguishing parameters of the different thermal runaway triggering modes, and selecting the evaluation node with the largest distance as the comprehensive performance optimal fire control strategy under the thermal runaway triggering modes.

Description

Fire extinguishing performance testing device of fire extinguishing system for energy storage system Technical Field The invention belongs to the technical field of fire extinguishing performance test, and particularly relates to a fire extinguishing performance test device of a fire extinguishing system for an energy storage system. Background The energy storage system is taken as a key component of the novel power system, and the safety of the energy storage system is directly related to the stable operation and public safety of a power grid. The lithium ion battery energy storage system may generate thermal runaway under the extreme working conditions of overcharge, heating, needling or external fire burning, etc., and fire and even explosion accidents are caused. Therefore, the energy storage system fire-fighting performance is scientifically and comprehensively tested and evaluated, and the method is an important means for guaranteeing the safe operation of the energy storage system. However, the existing energy storage system fire extinguishing performance testing device has the following technical defects: Firstly, in the prior art, a fixed and preset environmental working condition and thermal runaway triggering parameters are generally adopted for testing, a targeted test scheme cannot be generated according to the environment and the characteristic parameters of the energy storage system in the actual use process of the tested energy storage system, so that deviation exists between a test scene and the actual operation working condition of the energy storage system, and the test result is difficult to truly reflect the fire extinguishing performance of the fire protection system in the actual application; Secondly, in the prior art, only static working conditions at a single moment are often simulated in the test process, the characteristic that the environmental parameters and the running parameters of the energy storage system change dynamically along with time in the thermal runaway process of the energy storage system are ignored, the complex working conditions in the whole development process of the thermal runaway cannot be truly restored, and the test result and the actual fire extinguishing effect have larger difference; thirdly, the fire extinguishing performance of the prior art is usually evaluated by only focusing on a single index (such as the extinguishing time of an open fire), and the comprehensive quantitative evaluation of three dimensions of fire extinguishing efficiency, cooling performance and decontamination efficiency is lacked, so that the comprehensive fire extinguishing capability of a fire extinguishing system is difficult to comprehensively measure; Fourth, the prior art only can output test data, can not automatically analyze and output the optimal fire control strategy aiming at different thermal runaway triggering modes based on a plurality of groups of test results, and the intelligent level and engineering application value of the test device are low. Disclosure of Invention The invention provides a fire extinguishing performance testing device of a fire extinguishing system for an energy storage system, which is used for solving at least one technical problem. In order to solve the technical problems, the invention discloses a fire extinguishing performance testing device of a fire extinguishing system for an energy storage system, which comprises: The basic characteristic parameter acquisition module is used for acquiring a characteristic parameter set of the measured energy storage system, wherein the characteristic parameter set of the measured energy storage system comprises a battery cell layer parameter, a battery module layer parameter and an energy storage system layer parameter of the measured energy storage system; The intelligent test scheme generating module is used for generating reference cases corresponding to the tested energy storage system based on the characteristic parameter set of the tested energy storage system and the characteristic matrix library of the historical thermal runaway energy storage system, generating test environment working condition time sequence vectors and test thermal runaway characteristic time sequence vectors of the tested energy storage system in each thermal runaway triggering mode based on accident records of each reference case, and generating a test scheme of the tested energy storage system; The out-of-control test working condition simulation module is used for carrying out environment working condition simulation based on the test environment working condition time sequence vectors of the tested energy storage system in each thermal out-of-control trigger mode, carrying out thermal out-of-control characteristic simulation based on the test thermal out-of-control characteristic time sequence vectors of the tested energy storage system in each thermal out-of-control trigger mode, and carrying out fire-fighting wo