CN115295927A - Temperature control method, device, equipment and storage medium of energy storage system - Google Patents
Temperature control method, device, equipment and storage medium of energy storage system Download PDFInfo
- Publication number
- CN115295927A CN115295927A CN202210875583.7A CN202210875583A CN115295927A CN 115295927 A CN115295927 A CN 115295927A CN 202210875583 A CN202210875583 A CN 202210875583A CN 115295927 A CN115295927 A CN 115295927A
- Authority
- CN
- China
- Prior art keywords
- temperature
- battery
- energy storage
- storage system
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J7/007—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a temperature control method, a temperature control device, temperature control equipment and a storage medium of an energy storage system. The method comprises the steps of obtaining operating parameters of the energy storage system, wherein the operating parameters comprise: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic; predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature; and when the predicted temperature of the battery is greater than a first preset safe temperature threshold value, adjusting the current environment temperature so as to enable the energy storage system to work at the adjusted target environment temperature. According to the invention, the environmental temperature is adjusted by predicting the working temperature of the battery at the next moment, so that the working temperature of the battery is kept within a safe temperature range, and the technical problem of poor charging and discharging performance of the battery caused by overhigh temperature of the battery is solved.
Description
Technical Field
The present invention relates to the field of energy storage technologies, and in particular, to a method, an apparatus, a device, and a storage medium for controlling a temperature of an energy storage system.
Background
With the increasing world population and the increasing popularity of industrial production, the demand of various industries for energy and electricity is increasing, and under the current form, the energy structure in the global scope is generally concentrated on fossil fuel. As is well known, fossil fuels such as oil, natural gas and coal have a formation cycle of up to ten million years, and according to incomplete statistics and the current exploitation and use forms of fossil fuels, the fossil fuels are about to be exhausted after one hundred years. In contrast, governments of various countries have issued relevant policies to effectively utilize renewable resources such as solar energy, wind energy and water energy to generate electricity, but such electricity generation has certain limitations and is greatly influenced by regional factors. The energy storage system can not only perform efficient, rapid and accurate response, but also has an implementation form which is not limited by regions, can play a role of serving a power grid to a certain extent, charges the energy storage battery in the off-peak period of power utilization, and discharges and compensates the power grid to reduce the load of the power grid in the peak period of power utilization.
The energy storage system generally adopts the form of container to place, and the group battery adopts high density mode to concatenate or connect in parallel together in the container, leads to the battery high temperature, has influenced the charge and discharge performance of battery, also brings the risk of battery thermal runaway, has very big potential safety hazard.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a temperature control method, a temperature control device, temperature control equipment and a storage medium of an energy storage system, and aims to solve the technical problem that the charging and discharging performance of a battery is poor due to overhigh temperature of the battery in the prior art.
In order to achieve the above object, the present invention provides a temperature control method of an energy storage system, including the steps of:
obtaining operating parameters of the energy storage system, wherein the operating parameters comprise: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic;
predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature;
and when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, adjusting the current environment temperature so that the energy storage system works at the adjusted target environment temperature.
Optionally, when the predicted temperature of the battery is greater than a first preset safety temperature threshold, adjusting the current ambient temperature to make the energy storage system operate at a target ambient temperature obtained after adjustment, including:
when the predicted battery temperature is higher than the first preset safety temperature threshold value, acquiring the battery environment temperature characteristic between the ambient temperature and the battery temperature;
and controlling a refrigerating device to adjust the current environment temperature according to the battery environment temperature characteristic to obtain a target environment temperature.
Optionally, when the predicted temperature of the battery is greater than a first preset safety temperature threshold, adjusting the current ambient temperature to make the energy storage system operate after the step of obtaining the target ambient temperature after adjustment, the method further includes:
and when the target environment temperature reaches the lowest environment safety temperature, adjusting the current charge-discharge power to the maximum safety charge-discharge power so as to enable the working temperature of the battery to be smaller than the first preset safety temperature threshold value.
Optionally, before the step of adjusting the current charge-discharge power to the maximum safe charge-discharge power when the target environment temperature reaches the minimum environment safety temperature, so that the battery working temperature is lower than the first preset safety temperature threshold, the method further includes:
acquiring a functional relation between charge and discharge power and ambient temperature, battery temperature rise characteristics and battery working temperature;
and obtaining the maximum safe charge and discharge power according to the current environment temperature, the battery temperature rise characteristic and the first preset threshold temperature based on the functional relation.
Optionally, the predicting the battery temperature of the energy storage system at the next moment according to the operating parameter to obtain the predicted battery temperature includes:
acquiring a battery temperature rise time function based on the operation parameters, wherein the battery temperature rise time function is a function of the change of the battery temperature along with the time under the fixed environment temperature, the fixed charge and discharge power and the fixed temperature rise characteristic;
and predicting the battery temperature of the energy storage system at the next moment based on the temperature rise time function and the current battery temperature to obtain the predicted battery temperature.
Optionally, the method for controlling the temperature of the energy storage system further includes:
and stopping charging and discharging when the predicted temperature of the battery is greater than a second preset safe temperature threshold value, wherein the second preset safe temperature threshold value is greater than the first preset temperature threshold value.
Optionally, the method for controlling the temperature of the energy storage system further includes:
when the energy storage system does not work, the refrigerating device is controlled to adjust the current environment temperature, so that the current environment temperature is within a preset standby temperature range.
In addition, in order to achieve the above object, the present invention further provides a temperature control device of an energy storage system, including:
the data acquisition module is used for acquiring operating parameters of the energy storage system, wherein the operating parameters comprise: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic;
the temperature prediction module is used for predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature;
and the temperature adjusting module is used for adjusting the current environment temperature when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, so that the energy storage system works at the target environment temperature obtained after adjustment.
Further, to achieve the above object, the present invention also provides a temperature control apparatus including: the temperature control method comprises the following steps of a memory, a processor and a temperature control program of the energy storage system stored on the memory and capable of running on the processor, wherein the temperature control program of the energy storage system is configured to realize the steps of the temperature control method of the energy storage system.
In addition, to achieve the above object, the present invention further provides a storage medium having stored thereon a temperature control program of an energy storage system, which when executed by a processor, implements the steps of the temperature control method of an energy storage system as described above.
The method comprises the steps of obtaining operating parameters of the energy storage system, wherein the operating parameters comprise: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic; predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature; and when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, adjusting the current environment temperature so that the energy storage system works at the target environment temperature obtained after adjustment. According to the invention, the environmental temperature is adjusted by predicting the working temperature of the battery at the next moment, so that the working temperature of the battery is kept within a safe temperature range, and the technical problem of poor charging and discharging performance of the battery caused by overhigh temperature of the battery is solved.
Drawings
Fig. 1 is a schematic structural diagram of a temperature control device of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a first embodiment of a method for controlling temperature of an energy storage system according to the present invention;
FIG. 3 is a schematic flow chart illustrating a method for controlling temperature of an energy storage system according to a second embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a third embodiment of a method for controlling temperature of an energy storage system according to the present invention;
fig. 5 is a block diagram of a first embodiment of a temperature control apparatus of an energy storage system according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a temperature control device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the temperature control apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the temperature control device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a temperature control program of the energy storage system.
In the temperature control apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the temperature control device according to the present invention may be provided in the temperature control device, and the temperature control device calls the temperature control program of the energy storage system stored in the memory 1005 through the processor 1001 and executes the temperature control method of the energy storage system according to the embodiment of the present invention.
An embodiment of the present invention provides a method for controlling a temperature of an energy storage system, and referring to fig. 2, fig. 2 is a schematic flowchart of a first embodiment of the method for controlling a temperature of an energy storage system according to the present invention.
In this embodiment, the method for controlling the temperature of the energy storage system includes the following steps:
step S10: obtaining operating parameters of the energy storage system, wherein the operating parameters include: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic.
It should be noted that the execution main body of the embodiment may be an energy storage device; the energy storage device comprises various sensor detection elements and various devices such as a main controller, and in the embodiment, the current battery temperature and the current environment temperature can be detected through a temperature sensor, and other devices can also be adopted; the energy storage device comprises a battery management system; the current charge-discharge power refers to the charge-discharge power of a single battery module in the energy storage device at the current time point, and the energy storage device comprises a plurality of battery modules; the current charge and discharge power can be obtained by detecting the input/output power of each battery module; the battery temperature rise characteristic refers to the change relationship between the battery temperature and the ambient temperature as well as the battery charge and discharge power; the temperature rise characteristic can be obtained through multiple charge and discharge tests, and all acquired relevant data of the temperature rise characteristic of the battery can be transmitted to a battery management system.
Step S20: and predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature.
It should be noted that the next time is a time after the current time and corresponding to a unit time of the current time interval, the predicted temperature of the battery is the battery temperature corresponding to the next time, which is measured in advance, the unit time, that is, the time interval, can be set manually, and it is required to ensure that the battery temperature value does not affect the performance of the battery itself or the effect is negligible even if the battery temperature value exceeds a certain value in the time interval; under the condition that the operation parameters are not changed, the temperature of the battery rises along with the change of time, so that the predicted temperature of the battery is the highest temperature of the battery from the current moment to the next moment; the temperature-time curve of the battery temperature under the current condition can be obtained by calculating the operation parameters, and the battery temperature at the next moment can be predicted by substituting the curve and a time constant.
Step S30: and when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, adjusting the current environment temperature so that the energy storage system works at the adjusted target environment temperature.
It should be noted that the first preset safe temperature threshold is a preset maximum temperature threshold at which the battery can be in a normal operating state. The first preset safe temperature threshold value can be set manually or obtained through tests; the target ambient temperature is the ambient temperature which can enable the battery temperature at the next moment to be smaller than a first preset temperature threshold value; the target ambient temperature may be calculated from a relationship between the ambient temperature and the battery temperature.
In specific implementation, under the condition that the predicted temperature of the battery is greater than a first preset safe temperature threshold, the ambient temperature is adjusted according to the temperature rise characteristic of the battery, the temperature of the battery is influenced by the reduction of the ambient temperature, the temperature of the battery is reduced or not increased, and the temperature of the battery in the next time period is prevented from exceeding the first preset temperature threshold.
In this embodiment, operating parameters of the energy storage system are obtained, wherein the operating parameters include: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic; predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature; and when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, adjusting the current environment temperature so that the energy storage system works at the adjusted target environment temperature. This embodiment adjusts ambient temperature through the prediction to the battery operating temperature of next moment, and then makes battery operating temperature keep in safe temperature range, has solved because the battery high temperature leads to the not good technical problem of battery charge-discharge performance.
Referring to fig. 3, fig. 3 is a schematic flow chart of a temperature control method of an energy storage system according to a second embodiment of the invention.
Based on the first embodiment described above, in the present embodiment, the step S30 includes:
step S31: when the predicted battery temperature is higher than the first preset safety temperature threshold value, acquiring the battery environment temperature characteristic between the ambient temperature and the battery temperature;
it should be noted that the battery ring temperature characteristic refers to a change relationship between the battery temperature and the ambient temperature under the condition that other operation parameters except the ambient temperature are not changed; in this embodiment, the change rule of the ambient temperature characteristic of the battery can be obtained by performing a charge-discharge test on the battery at different ambient temperatures and different charge-discharge rates, so as to obtain a change relation of the ambient temperature through fitting; and storing the environmental temperature characteristic change relational expression at each power in the battery management system so as to be called at any time.
Step S32: and controlling a refrigerating device to adjust the current environment temperature according to the battery environment temperature characteristic to obtain a target environment temperature.
It can be understood that a certain time is required for the refrigerating device to adjust the ambient temperature, and a certain time is required for the temperature to drop, so that the ambient temperature obtained by calculation through the ambient temperature characteristic is not the target ambient temperature, and the ambient temperature is usually a range value and can not be limited to be very accurate, so that the target ambient temperature is usually slightly lower than the ambient temperature obtained by calculation, and the battery temperature is ensured not to exceed the first preset safety temperature threshold at the next moment.
In this embodiment, after the step S30, the method further includes:
step S40: and when the target environment temperature reaches the lowest environment safety temperature, adjusting the current charge-discharge power to the maximum safety charge-discharge power so as to enable the working temperature of the battery to be smaller than the first preset safety temperature threshold value.
It can be understood that the ambient temperature may have a certain influence on other components of the energy storage system, and the limited and refrigerating apparatus cannot further adjust the ambient temperature after the ambient temperature is reduced to a certain degree; the minimum environment safety temperature refers to the minimum value in the current adjustable environment temperature threshold value, and the environment temperature cannot be further reduced after the environment temperature is reduced to the threshold value.
It should be noted that, after the ambient temperature cannot be further adjusted, the battery power may be adjusted to ensure that the operating temperature of the battery does not exceed the first preset safe temperature threshold.
It should be understood that, under the condition that the working temperature of the battery is ensured to be lower than the first preset safe temperature threshold value, the battery works with the maximum safe charge and discharge power, and the charge and discharge performance of the battery can be exerted to the maximum extent.
In this embodiment, before the step S40, the method further includes:
step S01: and acquiring the functional relation between the charge and discharge power and the ambient temperature, the battery temperature rise characteristic and the battery working temperature.
It should be noted that, the battery may be subjected to a charge and discharge test through different environmental temperatures and different charge and discharge rates, so as to obtain a functional change relation between the temperature rise characteristic of the battery and the charge and discharge power through fitting.
Step S02: and obtaining the maximum safe charge and discharge power according to the current environment temperature, the battery temperature rise characteristic and the first preset threshold temperature based on the functional relation.
It is understood that the maximum safe charge and discharge power is the charge and discharge power that can make the battery temperature not exceed the first preset safe temperature threshold value at the next moment; in this embodiment, the battery temperature at the next moment is assumed to be a first preset safe temperature threshold, a correlation function relation can be obtained according to the current ambient temperature, and then the battery temperature rise characteristic and the first preset threshold temperature are brought into the relation, so that the maximum safe charging and discharging power can be obtained; the battery temperature rise characteristic can be extracted from a pre-stored battery temperature rise characteristic database according to parameters such as the current environment temperature, the current charging and discharging power, the current battery temperature and the like.
This embodiment can also control battery operating temperature through adjusting charge and discharge power when ambient temperature reaches minimum environmental safety temperature, under the unable circumstances that satisfies the temperature demand of ambient temperature regulation, has further guaranteed that the battery can not lead to damaging or the performance is not good because the high temperature.
Referring to fig. 4, fig. 4 is a schematic flow chart of a method for controlling temperature of an energy storage system according to a third embodiment of the present invention.
Based on the foregoing embodiments, in this embodiment, the step S20 includes:
step S21: acquiring a battery temperature rise time function based on the operation parameters, wherein the battery temperature rise time function is a function of the change of the battery temperature along with the time under the fixed environment temperature, the fixed charge and discharge power and the fixed temperature rise characteristic;
step S22: and predicting the battery temperature of the energy storage system at the next moment based on the temperature rise time function and the current battery temperature to obtain the predicted battery temperature.
In this embodiment, a set of curves of the battery temperature changing with time is obtained by performing a charge and discharge test on different environmental temperatures and different charge and discharge powers, and the corresponding curve of the battery temperature changing with time is a unique curve when the environmental temperature and the charge and discharge power are fixed. Establishing a data set by the various curves obtained in the mode and storing the data set into a battery management system; for example, when the ambient temperature ranges from 0 ℃ to 1 ℃ and the charge/discharge power is 1KW, the time curve of the battery temperature should start at the current ambient temperature.
It can be understood that a curve of the corresponding battery temperature changing with time can be obtained according to the current environment temperature and the current charge and discharge power in the operation parameters, a corresponding current time in the curve is obtained according to the current battery temperature, a time corresponding to the predicted battery temperature is obtained according to a preset time interval, and the battery temperature corresponding to the time corresponding to the predicted temperature is the predicted battery temperature.
In this embodiment, the method for controlling the temperature of the energy storage system further includes: and stopping charging and discharging when the predicted temperature of the battery is greater than a second preset safe temperature threshold value, wherein the second preset safe temperature threshold value is greater than the first preset temperature threshold value.
It can be understood that the second preset safe temperature threshold is a judgment temperature value of the working state of the battery, when the current temperature of the battery is higher than the second preset safe temperature threshold, safety accidents such as fire and explosion can occur due to overhigh temperature of the battery, and at the moment, when the temperature of the battery reaches the second preset safe temperature threshold, the energy storage system stops working so as to avoid safety accidents. Of course, when the current temperature of the battery is lower than the second preset safety temperature threshold, although the battery is in a high-temperature working state, the battery cannot be in the dangerous emergency.
In this embodiment, the method for controlling the temperature of the energy storage system further includes: and when the energy storage system does not work, controlling the refrigerating device to adjust the current environment temperature so that the current environment temperature is within a preset standby temperature range.
It can be understood that when the energy storage system does not work, the ambient temperature can be adjusted to be the standby ambient temperature, so that not only are the devices of the energy storage system protected, but also the power consumption of the energy storage system can be saved.
In this embodiment, obtain corresponding battery temperature rise time function through operating parameter, and then accurate prediction battery next moment temperature for energy storage system can cool down the battery in advance, has avoided the too high problem that leads to the performance not good of battery temperature.
In addition, an embodiment of the present invention further provides a storage medium, where a temperature control program of an energy storage system is stored on the storage medium, and the temperature control program of the energy storage system, when executed by a processor, implements the steps of the temperature control method of the energy storage system as described above.
Referring to fig. 5, fig. 5 is a block diagram illustrating a first embodiment of a temperature control apparatus for an energy storage system according to the present invention.
As shown in fig. 5, a temperature control device of an energy storage system according to an embodiment of the present invention includes:
the data obtaining module 501 is configured to obtain operating parameters of the energy storage system, where the operating parameters include: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic;
it should be noted that the execution subject of the present embodiment may be a computer; in this embodiment, the current battery temperature and the current ambient temperature may be detected by a temperature sensor, or other devices may be used; transmitting the detected data to a computer, wherein the computer comprises a battery management system; the current charging and discharging power refers to the charging and discharging power of the battery modules, and the energy storage system comprises a plurality of battery modules; the current charge and discharge power can be obtained by detecting the input/output power of each battery module; the battery temperature rise characteristic refers to the change relationship between the battery temperature and the ambient temperature as well as the battery power; the temperature rise characteristic can be obtained through multiple charge-discharge tests, and all obtained data can be transmitted to a battery management system.
The temperature prediction module 502 is configured to predict the battery temperature of the energy storage system at the next moment according to the operation parameter, so as to obtain a predicted battery temperature;
it should be noted that the predicted battery temperature is a battery temperature at a time having a certain time interval with the current time, and the time interval may be set manually, and it needs to be ensured that the battery temperature does not affect the battery even if exceeding a certain value in the time interval, or the effect may be ignored; under the condition that the operation parameters are not changed, the temperature of the battery generally rises, so that the predicted temperature of the battery is the highest temperature of the battery in the time period from the current moment to the next moment; the temperature-time curve of the battery temperature under the current condition can be obtained by calculating the operation parameters, and the battery temperature at the next moment can be predicted by substituting the curve and a time constant.
And a temperature adjusting module 503, configured to adjust the current ambient temperature when the predicted temperature of the battery is greater than a first preset safe temperature threshold, so that the energy storage system operates at the adjusted target ambient temperature.
It should be noted that the first preset safe temperature threshold may be set manually, or may be a battery safe temperature value obtained through a test; adjusting the ambient temperature according to the temperature rise characteristic of the battery, further reducing the ambient temperature to influence the battery temperature, reducing or not increasing the battery temperature, and avoiding the temperature of the battery in the next time period from exceeding the first preset temperature threshold; the target ambient temperature refers to an ambient temperature at which the battery temperature at the next moment is less than a first preset temperature threshold; the target ambient temperature may be calculated.
In this embodiment, the operating parameters of the energy storage system are obtained, wherein the operating parameters include: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic; predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature; and when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, adjusting the current environment temperature so that the energy storage system works at the adjusted target environment temperature. This embodiment adjusts ambient temperature through the prediction to the battery operating temperature of next moment to change charge-discharge power, and then make battery operating temperature keep in safe temperature range, solved because the too high technical problem that leads to the battery to charge-discharge performance not good of battery temperature.
In an embodiment, the temperature adjusting module 503 is further configured to, when the predicted temperature of the battery is greater than the first preset safe temperature threshold, obtain a battery environment temperature characteristic between an environment temperature and the battery temperature, and control a refrigeration device to adjust the current environment temperature according to the battery environment temperature characteristic, so as to obtain a target environment temperature.
In an embodiment, the temperature adjusting module 503 is further configured to adjust the current charging/discharging power to the maximum safe charging/discharging power when the target ambient temperature reaches the minimum ambient safety temperature, so that the battery operating temperature is lower than the first preset safe temperature threshold.
In an embodiment, the temperature adjustment module 503 is further configured to obtain a functional relationship between the charge and discharge power and the ambient temperature, the battery temperature rise characteristic, and the battery operating temperature, and obtain the maximum safe charge and discharge power according to the current ambient temperature, the battery temperature rise characteristic, and the first preset threshold temperature based on the functional relationship.
In an embodiment, the temperature predicting module 502 is further configured to obtain a battery temperature-rise time function based on the operation parameter, where the battery temperature-rise time function is a function of a change of a battery temperature with time under a fixed environment temperature, a fixed charge/discharge power, and a fixed temperature-rise characteristic, and predict the battery temperature at a next moment of the energy storage system based on the temperature-rise time function and the current battery temperature to obtain a predicted battery temperature.
In one embodiment, the temperature control device of the energy storage system further comprises; and the control module is used for stopping charging and discharging when the predicted temperature of the battery is greater than a second preset safe temperature threshold value, wherein the second preset safe temperature threshold value is greater than the first preset temperature threshold value.
In an embodiment, the control module is further configured to control the refrigeration device to adjust the current ambient temperature when the energy storage system does not operate, so that the current ambient temperature is within a preset standby temperature range.
Other embodiments or specific implementation manners of the temperature control device of the energy storage system of the present invention may refer to the above method embodiments, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (such as a rom/ram, a magnetic disk, and an optical disk), and includes several instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A temperature control method of an energy storage system, characterized by comprising the steps of:
obtaining operating parameters of the energy storage system, wherein the operating parameters include: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic;
predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature;
and when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, adjusting the current environment temperature so that the energy storage system works at the adjusted target environment temperature.
2. The method for controlling the temperature of the energy storage system according to claim 1, wherein the adjusting the current ambient temperature when the predicted temperature of the battery is greater than a first preset safety temperature threshold value so that the energy storage system operates at the adjusted target ambient temperature comprises:
when the predicted battery temperature is higher than the first preset safety temperature threshold value, acquiring the battery environment temperature characteristic between the ambient temperature and the battery temperature;
and controlling a refrigerating device to adjust the current environment temperature according to the battery environment temperature characteristic to obtain a target environment temperature.
3. The method according to claim 1, wherein after the step of adjusting the current ambient temperature to operate the energy storage system at the adjusted target ambient temperature when the predicted temperature of the battery is greater than a first preset safety temperature threshold, the method further comprises:
and when the target environment temperature reaches the lowest environment safety temperature, adjusting the current charge-discharge power to the maximum safety charge-discharge power so as to enable the working temperature of the battery to be smaller than the first preset safety temperature threshold value.
4. The method for controlling the temperature of the energy storage system according to claim 3, wherein before the step of adjusting the current charging/discharging power to the maximum safe charging/discharging power when the target ambient temperature reaches the minimum ambient safe temperature so that the battery operating temperature is lower than the first preset safe temperature threshold, the method further comprises:
acquiring a functional relation between charge and discharge power and ambient temperature, battery temperature rise characteristics and battery working temperature;
and obtaining the maximum safe charge and discharge power according to the current environment temperature, the battery temperature rise characteristic and the first preset threshold temperature based on the functional relation.
5. The method of claim 1, wherein the predicting the battery temperature at the next moment in time of the energy storage system according to the operating parameter to obtain the predicted battery temperature comprises:
acquiring a battery temperature rise time function based on the operation parameters, wherein the battery temperature rise time function is a function of the change of the battery temperature along with the time under the fixed environment temperature, the fixed charge and discharge power and the fixed temperature rise characteristic;
and predicting the battery temperature of the energy storage system at the next moment based on the temperature rise time function and the current battery temperature to obtain the predicted battery temperature.
6. The method of controlling the temperature of the energy storage system according to claim 1, further comprising:
and stopping charging and discharging when the predicted temperature of the battery is greater than a second preset safe temperature threshold value, wherein the second preset safe temperature threshold value is greater than the first preset temperature threshold value.
7. The method of controlling the temperature of the energy storage system according to claim 2, further comprising:
when the energy storage system does not work, the refrigerating device is controlled to adjust the current environment temperature, so that the current environment temperature is within a preset standby temperature range.
8. A temperature control apparatus of an energy storage system, characterized by comprising:
the data acquisition module is used for acquiring operating parameters of the energy storage system, wherein the operating parameters comprise: the current battery temperature, the current environment temperature, the current charging and discharging power and the battery temperature rise characteristic;
the temperature prediction module is used for predicting the battery temperature of the energy storage system at the next moment according to the operation parameters to obtain the predicted battery temperature;
and the temperature adjusting module is used for adjusting the current environment temperature when the predicted temperature of the battery is greater than a first preset safety temperature threshold value, so that the energy storage system works at the target environment temperature obtained after adjustment.
9. A temperature control apparatus, characterized in that the temperature control apparatus comprises: a memory, a processor and a temperature control program of an energy storage system stored on the memory and executable on the processor, the temperature control program of the energy storage system being configured to implement the steps of the temperature control method of an energy storage system according to any one of claims 1 to 7.
10. A storage medium having stored thereon a temperature control program of an energy storage system, the temperature control program of the energy storage system, when executed by a processor, implementing the steps of the temperature control method of an energy storage system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210875583.7A CN115295927A (en) | 2022-07-22 | 2022-07-22 | Temperature control method, device, equipment and storage medium of energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210875583.7A CN115295927A (en) | 2022-07-22 | 2022-07-22 | Temperature control method, device, equipment and storage medium of energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115295927A true CN115295927A (en) | 2022-11-04 |
Family
ID=83825112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210875583.7A Pending CN115295927A (en) | 2022-07-22 | 2022-07-22 | Temperature control method, device, equipment and storage medium of energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115295927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116053662A (en) * | 2023-04-03 | 2023-05-02 | 深圳市创诺新电子科技有限公司 | Thermal management control method and system for mobile energy storage power supply |
-
2022
- 2022-07-22 CN CN202210875583.7A patent/CN115295927A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116053662A (en) * | 2023-04-03 | 2023-05-02 | 深圳市创诺新电子科技有限公司 | Thermal management control method and system for mobile energy storage power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3345275B1 (en) | Method and apparatus for controlling energy flow between dissimilar energy storage devices | |
| JP2017158418A (en) | Dynamic adjustment method and system for battery under-voltage protection | |
| CN115295927A (en) | Temperature control method, device, equipment and storage medium of energy storage system | |
| CN109774524B (en) | Charging method, charging device, computer equipment and storage medium | |
| CN110492532A (en) | Frequency modulation method, device and the equipment of power supply system | |
| CN115642660A (en) | Charging control method and device, electronic equipment and computer readable storage medium | |
| CN101399381A (en) | Apparatus for changing charging and discharging efficiency according to status of chargeable battery | |
| CN108879811A (en) | Multiple-unit power module control method, controller and direct current quick charge stake | |
| KR102064586B1 (en) | Charge management method for energy storage system | |
| CN104935009B (en) | Microgrid operation control method and system containing photovoltaic and fuel gas power generation | |
| EP3261211B1 (en) | Systems and methods for controlling performance parameters of an energy storage device | |
| CN115513991A (en) | Photovoltaic power station power rapid control method, device and system and readable storage medium | |
| CN116872775A (en) | Charging management method, system, device and medium for charging equipment | |
| CN116317515A (en) | Power adapter protection method and system based on temperature and computer equipment | |
| CN113746166A (en) | Charging control method for zinc-silver storage battery used for multiple times | |
| CN205159457U (en) | Electric power is with device that prevents that battery from opening a way | |
| CN110021951B (en) | Security control design method and system for multi-direct-current feed-in receiving-end extra-high voltage ring network | |
| CN113904344A (en) | Light storage combined primary frequency modulation control method, device, equipment and storage medium | |
| CN112165089A (en) | Multi-target scheduling method, system and equipment for micro-grid and storable medium | |
| CN105094266A (en) | Battery protection system and battery protection method | |
| US11196257B2 (en) | System for managing distribution network | |
| CN113315154B (en) | Control method, device, equipment and storage medium for preventing lead-carbon battery from overvoltage tripping | |
| CN111242406B (en) | User side energy outage risk processing method of comprehensive energy interactive system | |
| KR102243645B1 (en) | Battery charge control method and battery charge control system using new renewable energy | |
| CN113867291B (en) | Energy storage heat exchange optimization scheduling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |