CN117434457B - Energy storage monitoring method, device, equipment and medium of energy storage battery - Google Patents
Energy storage monitoring method, device, equipment and medium of energy storage battery Download PDFInfo
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- CN117434457B CN117434457B CN202311755045.5A CN202311755045A CN117434457B CN 117434457 B CN117434457 B CN 117434457B CN 202311755045 A CN202311755045 A CN 202311755045A CN 117434457 B CN117434457 B CN 117434457B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 56
- 238000012544 monitoring process Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000012549 training Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims description 19
- 238000012795 verification Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 210000000352 storage cell Anatomy 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
Abstract
The invention discloses an energy storage monitoring method, device, equipment and medium of an energy storage battery, and relates to the technical field of energy storage batteries; training a first time sequence model based on battery charging power, battery temperature and heating value in unit time of each time to obtain a charging model, wherein the charging model is used for predicting the battery temperature and the heating value in unit time of a set time from the current time according to the charging power input into the charging model; according to the energy storage monitoring method, device, equipment and medium for the energy storage battery, battery data during charging of the battery passing through the energy storage monitoring device are acquired and analyzed, and the temperature control equipment is tested for the influence of different power works on the battery and analyzed, so that the temperature of the battery cannot be too high, the battery is normally charged, and the energy consumption is reduced while the service life of the battery is prolonged.
Description
Technical Field
The invention relates to the technical field of energy storage batteries, in particular to an energy storage monitoring method, an energy storage monitoring device, energy storage monitoring equipment and an energy storage medium of an energy storage battery.
Background
Along with the development of new energy automobiles, the battery is used as one of main components of the new energy automobiles, the requirements on the battery are higher and higher, the battery is required to have good quality, and a good work management control system is required to control the work of the battery, so that the battery is in a healthy and good state during work, the normal work of the battery is ensured, and the service life of the battery is prolonged.
Chinese patent publication No. CN103069634B discloses an energy storage battery having a battery body (5), a first discharge electrode (1) and a second discharge electrode (2) extending in a plane in an extension plane, wherein the battery body (5) has 4 sides (4) arranged along the periphery of the extension plane, each two of which sides are parallel to each other, characterized in that the first discharge electrode (1) and the second discharge electrode (2) are symmetrically arranged on the respective side (4) with respect to the center (9) of one of the sides (4) in the peripheral direction of the extension plane, and the contact point (7) of the discharge electrode (1, 2) facing the center (9) with the respective side (4) encloses an angle λ with the center (9) of the side around the center point (10) of the extension plane, wherein 10 °.
In the battery charging process, a large amount of heat can be generated generally, the speed of battery charging can be influenced by the excessively high battery heat, the service life of the battery can be influenced even to cause the damage of the battery, in order to ensure the charging efficiency of the battery, the battery can be cooled and radiated during charging, so that the process of charging and energy storage is necessarily monitored, the prior art still has the advantages that the operation power and the cooling speed of the cooling mechanism can not be automatically adjusted according to the rising degree of the battery temperature during charging, and the energy consumption of the cooling mechanism is reduced while the battery temperature is ensured.
Disclosure of Invention
The invention aims to provide an energy storage monitoring method, device, equipment and medium of an energy storage battery, so as to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: the energy storage monitoring method of the energy storage battery comprises the following steps:
s1, simulating various charging power conditions, and acquiring battery data during charging, wherein the battery data comprises battery temperature and heating value in unit time;
s2, training a first time sequence model based on battery charging power, battery temperature and heating value in unit time of each time to obtain a charging model, wherein the charging model is used for predicting the battery temperature and the heating value in unit time of the set time from the current time according to the charging power input into the charging model;
s3, simulating various charging conditions of the battery, and under the various charging conditions of the battery, performing cooling test on the battery by using a temperature control unit so that the temperature of the battery is not greater than a second temperature threshold;
s4, training a second time sequence model based on the heat productivity of each time unit of the battery, the working power of the temperature control equipment and the battery temperature to obtain a temperature control model, wherein the temperature control model is used for inputting the heat productivity of each time unit predicted by the charging model and the target battery temperature set time from the current time into the temperature control model to obtain the predicted working power of the temperature control equipment;
s5, predicting the working power of the temperature control unit by using the charging model and the temperature control model, and controlling the temperature control unit to operate with the predicted power.
Further, the temperature control model establishment specifically includes the following steps:
a1, acquiring heat productivity in unit time under various charging conditions of the battery, and cooling the battery by using temperature control equipment when the temperature of the battery reaches a set first temperature threshold;
a2, detecting the minimum power of temperature control equipment for enabling the temperature of the battery not to exceed a second temperature threshold under various charging conditions of the battery, and recording data;
a3, preprocessing the recorded data to obtain a sample set, equally dividing the sample set into a training set and a verification set, training a second time sequence model based on the training set, and verifying the trained second time sequence model by using the verification set;
a4, if the accuracy of the verification result is lower than the set accuracy, modifying parameters of the second time sequence model, and returning to a3; and if the accuracy rate of the verification result is greater than or equal to the set accuracy rate, determining parameters of the second time sequence model to obtain the temperature control model.
Further, the a1 further includes determining an intervention time of the temperature control device, which specifically includes the steps of:
b1, setting the test duration as t;
b2, updating the intervention time of the temperature control equipment to be T-T, wherein T is the intervention time of the temperature control equipment, and the initial value of T is the time when the temperature of the battery reaches a first temperature threshold value;
b3, repeatedly setting the frequency of the step b2, screening out the value of the T and corresponding record data when the battery temperature does not exceed the minimum power of the temperature control equipment with the second temperature threshold under various charging conditions of the battery, and then executing the step a3 by using the record data.
Further, the step S5 specifically includes the following steps:
c1, predicting the battery temperature and the unit heating value of the battery according to the battery working data and a charging model;
c2, predicting the working power of the temperature control equipment according to the predicted battery temperature, the unit heating value and the temperature control model;
and c3, sending the predicted working power to a temperature control adjusting module, and controlling the temperature control equipment through the temperature control adjusting module so that the temperature control equipment works with the predicted working power.
The energy storage monitoring system of the energy storage battery is used for executing an energy storage monitoring method of the energy storage battery and comprises a battery monitoring module, a temperature control unit, a charging model module, a temperature control model module and a comprehensive processing module;
the battery monitoring module is used for monitoring the battery in real time to acquire battery data;
the temperature control unit is used for controlling the temperature control equipment to control the temperature of the battery according to the acquired battery data;
the charging model module is used for establishing a charging model according to the acquired battery data;
the temperature control model module is connected with the temperature control unit and the battery monitoring module and is used for acquiring the heat productivity of the battery in unit time and the working data of the temperature control unit in the working data of the battery, establishing a temperature control model and predicting the working power of the temperature control unit according to the heat productivity of the battery in unit time;
the comprehensive processing module is used for analyzing the obtained battery data and the working data of the temperature control unit according to the prediction data of the charging model and the temperature control model, and determining the working power of the temperature control unit.
Further, the temperature control unit comprises temperature control equipment, a temperature control monitoring module and a temperature control adjusting module;
the temperature control equipment is used for cooling the battery, and the cooling comprises two modes of refrigeration and air cooling heat dissipation;
the temperature control monitoring module is connected with the temperature control equipment and is used for acquiring working data of the temperature control equipment, and for refrigeration, the acquired working data comprise working power of the temperature control equipment and refrigerating capacity in unit time; for air-cooled heat dissipation, the acquired working data comprise the working power of temperature control equipment and the ventilation quantity in unit time;
the temperature control adjusting module is connected with the temperature control equipment and used for adjusting the working power of the temperature control equipment.
An electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing a method of monitoring energy storage of an energy storage battery when the program is executed by the processor.
A storage medium having stored thereon a computer program which when executed by a processor implements a method of monitoring energy storage of an energy storage battery.
Compared with the prior art, the energy storage monitoring method, the device, the equipment and the medium of the energy storage battery provided by the invention have the advantages that the battery monitoring module, the temperature control unit, the charging model module and the temperature control model module are arranged, battery data of the battery during charging can be acquired and analyzed, and the temperature control equipment can test and analyze the influence of different power operations on the battery, so that the temperature of the battery can not be too high, the temperature control equipment can work with lower power, the normal charging and the service life of the battery are ensured, and the energy consumption of the temperature control equipment is reduced.
Compared with the prior art, the energy storage monitoring method, the device, the equipment and the medium of the energy storage battery can test the intervention time of the temperature control equipment by arranging the temperature control model module, so that the temperature control equipment can work at lower power, the intervention time of the temperature control equipment with the battery temperature not too high can be ensured, and the energy consumption of the temperature control equipment is further reduced.
Compared with the prior art, the energy storage monitoring method, the device, the equipment and the medium of the energy storage battery provided by the invention have the advantages that the comprehensive processing module is arranged, the battery temperature and the unit heating value can be predicted, the working power of the temperature control equipment is calculated according to the predicted battery temperature and the unit heating value, the working power of the temperature control equipment for a longer time can be predicted, the working power is adjusted in real time according to the prediction result, and the working power of the temperature control equipment is ensured to be in accordance with the heating condition when the current battery is charged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a block diagram of a system architecture according to an embodiment of the present invention;
fig. 2 is a method step diagram provided in an embodiment of the present invention.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the disclosure and features of embodiments may be combined with each other without conflict.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Embodiments described herein may be described with reference to plan and/or cross-sectional views with the aid of idealized schematic diagrams of the present disclosure. Accordingly, the example illustrations may be modified in accordance with manufacturing techniques and/or tolerances. Thus, the embodiments are not limited to the embodiments shown in the drawings, but include modifications of the configuration formed based on the manufacturing process. Thus, the regions illustrated in the figures have schematic properties and the shapes of the regions illustrated in the figures illustrate the particular shapes of the regions of the elements, but are not intended to be limiting.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1-2, the present invention provides an energy storage monitoring method of an energy storage battery, comprising the following steps:
s1, simulating various charging power conditions, and acquiring battery data during charging, wherein the battery data comprises battery temperature and heating value in unit time;
s2, training a first time sequence model based on battery charging power, battery temperature and heating value in unit time of each time to obtain a charging model, wherein the charging model is used for predicting the battery temperature and the heating value in unit time of the set time from the current time according to the charging power input into the charging model;
s3, simulating various charging conditions of the battery, and under the various charging conditions of the battery, performing cooling test on the battery by using a temperature control unit so that the temperature of the battery is not greater than a second temperature threshold;
s4, training a second time sequence model based on the heat productivity of each time unit of the battery, the working power of the temperature control equipment and the battery temperature to obtain a temperature control model, wherein the temperature control model is used for inputting the heat productivity of each time unit predicted by the charging model and the target battery temperature set time from the current time into the temperature control model to obtain the predicted working power of the temperature control equipment;
the specific steps of building the temperature control model are as follows:
a1, acquiring heat productivity in unit time under various charging conditions of the battery, and cooling the battery by using temperature control equipment when the temperature of the battery reaches a set first temperature threshold; further, the method further comprises the step of determining the intervention time of the temperature control equipment, and specifically comprises the following steps:
b1, setting the test duration as t;
b2, updating the intervention time of the temperature control equipment to be T-T, wherein T is the intervention time of the temperature control equipment, and the initial value of T is the time when the temperature of the battery reaches a first temperature threshold value;
b3, repeatedly setting the frequency of the step b2, screening out the value of the T and corresponding record data when the battery temperature does not exceed the minimum power of the temperature control equipment with the second temperature threshold under various charging conditions of the battery, and then executing the step a3 by using the record data. Wherein the first temperature threshold and the second temperature threshold may be set according to industry standards, preferably the first temperature threshold is 40 ℃ and the second temperature threshold is 55 ℃.
a2, detecting the minimum power of temperature control equipment for enabling the temperature of the battery not to exceed a second temperature threshold under various charging conditions of the battery, and recording data;
a3, preprocessing the recorded data to obtain a sample set, equally dividing the sample set into a training set and a verification set, training a second time sequence model based on the training set, and verifying the trained second time sequence model by using the verification set;
a4, if the accuracy of the verification result is lower than the set accuracy, modifying parameters of the second time sequence model, and returning to a3; and if the accuracy rate of the verification result is greater than or equal to the set accuracy rate, determining parameters of the second time sequence model to obtain the temperature control model.
S5, predicting the working power of the temperature control unit by using the charging model and the temperature control model, and controlling the temperature control unit to operate with the predicted power, wherein the method specifically comprises the following steps of:
c1, predicting the battery temperature and the unit heating value of the battery according to the battery working data and a charging model;
c2, predicting the working power of the temperature control equipment according to the predicted battery temperature, the unit heating value and the temperature control model;
and c3, sending the predicted working power to a temperature control adjusting module, and controlling the temperature control equipment through the temperature control adjusting module so that the temperature control equipment works with the predicted working power.
The invention also provides an energy storage monitoring system of the energy storage battery, which comprises a battery monitoring module, a temperature control unit, a charging model module, a temperature control model module and a comprehensive processing module;
the battery monitoring module is connected with the battery and used for monitoring the battery in real time to obtain battery data, wherein the battery data comprises working voltage, working current, battery temperature, resistance, heating value per unit time and the like of the battery, and the heating value per unit battery can be obtained through calculation of the working voltage, the working current and the resistance;
the temperature control unit is used for controlling the temperature of the battery according to the acquired battery data; the temperature control unit comprises temperature control equipment, a temperature control monitoring module and a temperature control adjusting module; the temperature control equipment is used for cooling the battery, and the cooling comprises two modes of refrigeration and air cooling heat dissipation, wherein the refrigeration can adopt a semiconductor refrigeration technology, and the air cooling heat dissipation can adopt a heat dissipation fan;
the temperature control monitoring module is connected with the temperature control equipment and used for acquiring working data of the temperature control equipment, and for refrigeration, the acquired working data comprise working power of the temperature control equipment and refrigerating capacity in unit time, and the refrigerating capacity can be acquired through test and parameters of the temperature control equipment; for air-cooled heat dissipation, the acquired working data comprise the working power of the temperature control equipment and the ventilation quantity in unit time, and can be obtained through test and parameters of the temperature control equipment. The temperature control adjusting module is connected with the temperature control equipment and used for adjusting the working power of the temperature control equipment.
The charging model module is used for taking battery charging power, battery temperature and heating value in unit time as sample sets according to acquired battery data, dividing the sample sets into training sets and verification sets, training a first time sequence model by using the training sets, preliminarily determining each parameter value of the first time sequence model, verifying the first time sequence model by using the verification sets, verifying whether the first time sequence model is accurate or not, modifying parameters if the first time sequence model is inaccurate, training and verifying until accuracy meets requirements, and determining parameters of the first time sequence model to obtain the charging model.
The temperature control model module is connected with the temperature control unit and the battery monitoring module and is used for acquiring the heat productivity of the battery in unit time and the working data of the temperature control unit in the working data of the battery, establishing a temperature control model and predicting the working power of the temperature control unit according to the heat productivity of the battery in unit time;
the comprehensive processing module is used for analyzing the obtained battery data and the working data of the temperature control unit according to the predicted data of the charging model and the temperature control model, and determining the working power of the temperature control unit.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (7)
1. The energy storage monitoring method of the energy storage battery is characterized by comprising the following steps of: the method comprises the following steps:
s1, simulating various charging power conditions, and acquiring battery data during charging, wherein the battery data comprises battery temperature and heating value in unit time;
s2, training a first time sequence model based on battery charging power, battery temperature and heating value in unit time of each time to obtain a charging model, wherein the charging model is used for predicting the battery temperature and the heating value in unit time of the set time from the current time according to the charging power input into the charging model;
s3, simulating various charging conditions of the battery, and under the various charging conditions of the battery, performing cooling test on the battery by using a temperature control unit so that the temperature of the battery is not greater than a second temperature threshold;
s4, training a second time sequence model based on the heat productivity of each time unit of the battery, the working power of the temperature control equipment and the battery temperature to obtain a temperature control model, wherein the temperature control model is used for inputting the heat productivity of each time unit predicted by the charging model and the target battery temperature set time from the current time into the temperature control model to obtain the predicted working power of the temperature control equipment;
the temperature control model establishment specifically comprises the following steps:
a1, acquiring heat productivity in unit time under various charging conditions of the battery, and cooling the battery by using temperature control equipment when the temperature of the battery reaches a set first temperature threshold;
a2, detecting the minimum power of temperature control equipment for enabling the temperature of the battery not to exceed a second temperature threshold under various charging conditions of the battery, and recording data;
a3, preprocessing the recorded data to obtain a sample set, equally dividing the sample set into a training set and a verification set, training a second time sequence model based on the training set, and verifying the trained second time sequence model by using the verification set;
a4, if the accuracy of the verification result is lower than the set accuracy, modifying parameters of the second time sequence model, and returning to a3; if the accuracy rate of the verification result is greater than or equal to the set accuracy rate, determining parameters of the second time sequence model to obtain a temperature control model;
s5, predicting the working power of the temperature control unit by using the charging model and the temperature control model, and controlling the temperature control unit to operate with the predicted power.
2. The energy storage monitoring method of an energy storage battery according to claim 1, wherein: the a1 further comprises the step of determining the intervention time of the temperature control equipment, and the specific steps are as follows:
b1, setting the test duration as t;
b2, updating the intervention time of the temperature control equipment to be T-T, wherein T is the intervention time of the temperature control equipment, and the initial value of T is the time when the temperature of the battery reaches a first temperature threshold value;
b3, repeatedly setting the frequency of the step b2, screening out the value of the T and corresponding record data when the battery temperature does not exceed the minimum power of the temperature control equipment with the second temperature threshold under various charging conditions of the battery, and then executing the step a3 by using the record data.
3. The energy storage monitoring method of an energy storage battery according to claim 1, wherein: the step S5 specifically comprises the following steps:
c1, predicting the battery temperature and the unit heating value of the battery according to the battery working data and a charging model;
c2, predicting the working power of the temperature control equipment according to the predicted battery temperature, the unit heating value and the temperature control model;
and c3, controlling the temperature control equipment to enable the temperature control equipment to work at the predicted working power.
4. An energy storage monitoring system of an energy storage battery for performing the energy storage monitoring method of the energy storage battery as claimed in any one of claims 1 to 3, characterized in that: the device comprises a battery monitoring module, a temperature control unit, a charging model module, a temperature control model module and a comprehensive processing module;
the battery monitoring module is used for monitoring the battery in real time to acquire battery data;
the temperature control unit is used for controlling the temperature control equipment to control the temperature of the battery according to the acquired battery data;
the charging model module is used for establishing a charging model according to the acquired battery data;
the temperature control model module is connected with the temperature control unit and the battery monitoring module and is used for acquiring the heat productivity of the battery in unit time and the working data of the temperature control unit in the working data of the battery, establishing a temperature control model and predicting the working power of the temperature control unit according to the heat productivity of the battery in unit time;
the comprehensive processing module is used for analyzing the obtained battery data and the working data of the temperature control unit according to the prediction data of the charging model and the temperature control model, and determining the working power of the temperature control unit.
5. The energy storage monitoring system of an energy storage cell of claim 4, wherein: the temperature control unit comprises temperature control equipment, a temperature control monitoring module and a temperature control adjusting module;
the temperature control equipment is used for cooling the battery, and the cooling comprises two modes of refrigeration and air cooling heat dissipation;
the temperature control monitoring module is connected with the temperature control equipment and is used for acquiring working data of the temperature control equipment, and for refrigeration, the acquired working data comprise working power of the temperature control equipment and refrigerating capacity in unit time; for air-cooled heat dissipation, the acquired working data comprise the working power of temperature control equipment and the ventilation quantity in unit time;
the temperature control adjusting module is connected with the temperature control equipment and used for adjusting the working power of the temperature control equipment.
6. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized by: the processor, when executing a program, implements the energy storage monitoring method of the energy storage battery according to any one of claims 1-3.
7. A storage medium having a computer program stored thereon, characterized by: the computer program, when executed by a processor, implements a method of monitoring the energy storage of an energy storage cell as claimed in any one of claims 1-3.
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| CN111391668A (en) * | 2020-03-31 | 2020-07-10 | 威睿电动汽车技术(宁波)有限公司 | Battery thermal runaway early warning processing method, device, equipment and storage medium |
| CN112906184A (en) * | 2021-01-14 | 2021-06-04 | 合肥阳光新能源科技有限公司 | Temperature control method and system of battery energy storage system |
| CN115158097A (en) * | 2022-09-02 | 2022-10-11 | 南京金维鸟智能系统股份有限公司 | Charging pile management method and system based on Internet of things and storage medium |
| CN117110936A (en) * | 2023-10-25 | 2023-11-24 | 深圳市强晟电子科技有限公司 | UPS running state prediction maintenance system based on time sequence analysis |
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| CN111391668A (en) * | 2020-03-31 | 2020-07-10 | 威睿电动汽车技术(宁波)有限公司 | Battery thermal runaway early warning processing method, device, equipment and storage medium |
| CN112906184A (en) * | 2021-01-14 | 2021-06-04 | 合肥阳光新能源科技有限公司 | Temperature control method and system of battery energy storage system |
| CN115158097A (en) * | 2022-09-02 | 2022-10-11 | 南京金维鸟智能系统股份有限公司 | Charging pile management method and system based on Internet of things and storage medium |
| CN117110936A (en) * | 2023-10-25 | 2023-11-24 | 深圳市强晟电子科技有限公司 | UPS running state prediction maintenance system based on time sequence analysis |
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