CN114188632A - Fan speed regulation method, device, equipment and storage medium - Google Patents
Fan speed regulation method, device, equipment and storage medium Download PDFInfo
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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
- H01M10/61—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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
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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
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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- 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
Abstract
The invention discloses a fan speed regulation method, a device, equipment and a storage medium, comprising the following steps: carrying out temperature partitioning on battery modules in a battery cluster to obtain at least two cluster temperature areas, wherein the battery cluster comprises a plurality of battery modules; acquiring a linear adjusting model and an input temperature value corresponding to a cluster temperature area, wherein the linear adjusting model corresponds to the cluster temperature area one by one; inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to a battery module in the cluster temperature area; and acquiring the actual duty ratio of the fan corresponding to at least one battery module in the cluster temperature area, and adjusting the actual duty ratio of the fan to be the target duty ratio of the fan. The invention can realize the targeted adjustment of the duty ratio of the fans of the battery modules in different cluster temperature areas according to the actual conditions, can ensure that the temperatures of different battery modules are close, and can effectively prolong the service life of the battery modules.
Description
Technical Field
The invention relates to the field of fan speed regulation, in particular to a fan speed regulation method, a fan speed regulation device, fan speed regulation equipment and a storage medium.
Background
The energy storage system is an important link of the smart power grid and consists of a battery stack, the battery stack consists of a battery cluster, the battery cluster consists of a battery module, the battery module consists of a battery core, and the battery core is a basic unit of the energy storage system.
The temperature difference between the regions in the energy storage system has a large influence on the system life, SOH (State Of Health), and system balance. In order to improve the performance of the energy storage system, in the related art, the temperature difference between the areas is often adjusted by increasing the number of fans in the energy storage system, so that the problems of high energy consumption and poor temperature equalization effect exist.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a fan speed regulation method, a fan speed regulation device, fan speed regulation equipment and a storage medium, wherein the fan can be regulated according to the target duty ratio of the fans of the battery modules in different areas, so that the temperature equalization effect among the battery modules is good, and the energy consumption is low.
An embodiment of a first aspect of the present invention provides a method for regulating speed of a fan, including:
carrying out temperature partitioning on battery modules in a battery cluster to obtain at least two cluster temperature areas, wherein the battery cluster comprises a plurality of battery modules;
acquiring a linear adjustment model and an input temperature value corresponding to a cluster temperature area, wherein the linear adjustment model corresponds to the cluster temperature area one to one;
inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to a battery module in the cluster temperature area;
and acquiring the actual duty ratio of the fan corresponding to at least one battery module in the cluster temperature area, and adjusting the actual duty ratio of the fan to be the target duty ratio of the fan.
According to the above embodiments of the present invention, at least the following advantages are provided: adjust as the unit with battery module's fan, divide battery module in different cluster temperature regions, can realize the adjustment of pertinence according to the condition of reality that the fan target duty ratio is to the fan actual duty ratio of the battery module in different cluster temperature regions, not only can ensure that the temperature between the different battery modules is close, can effectively improve battery module's life, and the amount of wind that the fan that corresponds formed is high to the validity that the samming acted on, energy utilization is high, the total energy consumption of all fans is less.
According to some embodiments of the first aspect of the present invention, before obtaining the linear adjustment model and the input temperature value corresponding to the cluster temperature region, the method further includes:
acquiring a corresponding module average temperature value in each battery module in the battery cluster;
screening to obtain a cluster highest temperature value and a cluster lowest temperature value corresponding to the battery cluster according to the average temperature value of each module;
comparing the cluster highest temperature value with the cluster lowest temperature value to obtain a cluster temperature difference value;
and obtaining a cluster temperature area corresponding to the cluster temperature difference value according to the cluster temperature difference value.
According to some embodiments of the first aspect of the present invention, the input temperature value comprises a module average temperature value, the linear regulation model is a first regulation model, the first regulation model comprises a first function formula, the first function formula comprises a plurality of first linear functions connected in series;
inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area, wherein the method comprises the following steps:
and inputting the average temperature value of the module into a first function formula in the first regulation model to obtain a first fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the average temperature value of the module is a parameter of the first function formula, and the first fan target duty ratio is a function value of the first function formula.
According to some embodiments of the first aspect of the present invention, the input temperature value further comprises a module maximum temperature value, the first regulation model further comprises a second function formula;
inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area, wherein the method comprises the following steps:
acquiring a module preset temperature value in a cluster temperature area corresponding to the first adjusting model;
comparing the highest temperature value of the module with a preset temperature value of the module;
when the maximum module temperature value is larger than the preset module temperature value, inputting the maximum module temperature value into a second function formula in the first regulation model to obtain a second fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the maximum module temperature value is a parameter of the second function formula, and the second fan target duty ratio is a function value of the second function formula;
when the maximum temperature value of the module is smaller than or equal to the preset temperature value of the module, inputting the average temperature value of the module into a first function formula in a first regulation model to obtain a first fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the average temperature value of the module is a parameter of the first function formula, and the first fan target duty ratio is a function value of the first function formula.
According to some embodiments of the first aspect of the present invention, the input temperature value comprises a cluster temperature difference value, the linear regulation model is a second regulation model, and the second regulation model comprises a third function formula and a fourth function formula;
inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area, wherein the method comprises the following steps:
determining a first battery module corresponding to the highest cluster temperature value according to the average module temperature value corresponding to each battery module, and inputting the cluster temperature difference value corresponding to the first battery module into a third function formula to obtain a third fan target duty ratio corresponding to the first battery module, wherein the cluster temperature difference value corresponding to the first battery module is a parameter of the third function formula, and the third fan target duty ratio is a function value of the third function formula;
and determining a second battery module corresponding to the lowest cluster temperature value according to the average module temperature value corresponding to each battery module, and inputting the cluster temperature difference value corresponding to the second battery module into a fourth function formula to obtain a fourth fan target duty ratio corresponding to the second battery module, wherein the cluster temperature difference value corresponding to the second battery module is a parameter of the fourth function formula, and the fourth fan target duty ratio is a function value of the fourth function formula.
According to some embodiments of the first aspect of the present invention, the third function formula comprises a plurality of contiguously connected second linear functions and the fourth function formula comprises a plurality of contiguously connected third linear functions.
According to some embodiments of the first aspect of the present invention, the input temperature value is updated after a preset time;
and inputting the updated input temperature value into the linear regulation model corresponding to the cluster temperature area.
An embodiment of a second aspect of the present invention provides a fan speed adjusting device, including:
the first processing module is used for carrying out temperature partitioning on the battery modules in the battery cluster to obtain at least two cluster temperature areas, wherein the battery cluster comprises a plurality of battery modules;
the acquisition module is used for acquiring linear adjustment models and input temperature values corresponding to the cluster temperature areas, wherein the linear adjustment models correspond to the cluster temperature areas one to one;
the second processing module is used for inputting the input temperature value into the linear regulation model corresponding to the cluster temperature area to obtain the target duty ratio of the fan corresponding to the battery module in the cluster temperature area;
and the third processing module is used for acquiring the actual duty ratio of the fan corresponding to at least one battery module in the cluster temperature area and adjusting the actual duty ratio of the fan to the target duty ratio of the fan.
The fan speed control apparatus according to the embodiment of the second aspect applies the fan speed control method according to any one of the embodiments of the first aspect, and therefore has all the advantages of the first aspect of the present invention.
According to a third aspect of the present invention, there is provided a fan governor device, including:
a memory, a processor and a computer program stored on the memory and operable on the processor, the processor implementing the method of fan speed regulation according to any one of the embodiments of the first aspect when executing the computer program.
The fan speed control apparatus according to the embodiment of the third aspect can implement the fan speed control method according to any one of the first aspect, and therefore has all the advantages of the first aspect of the present invention.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium, including computer-executable instructions stored thereon, for executing the fan speed control method according to any one of the embodiments of the first aspect.
All the advantages of the first aspect of the present invention are obtained because the computer storage medium of the embodiment of the fourth aspect can execute the fan speed control method of any one of the embodiments of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a diagram illustrating the main steps of a fan speed control method according to an embodiment of the present invention;
FIG. 2 is a diagram of the main steps S100 in the fan speed control method according to the embodiment of the present invention;
FIG. 3 is a diagram illustrating the main steps S300 in the fan speed control method according to the embodiment of the present invention;
FIG. 4 is a diagram of the main steps S300 in a fan speed control method according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fan speed control device according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating a function image of a first function formula according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a function image of a third function formula according to an embodiment of the present invention;
fig. 8 is a functional image diagram of a fourth function formula in the embodiment of the present invention.
Reference numerals:
a first processing module 510, an acquisition module 520, a second processing module 530, a third processing module 540, and a loop module 550.
Detailed Description
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions. In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The fan speed control method, apparatus, device and storage medium of the present invention are described below with reference to fig. 1 to 8.
As shown in fig. 1, a method for regulating a speed of a fan according to an embodiment of a first aspect of the present invention includes the following steps:
s100, carrying out temperature partitioning on the battery modules in the battery cluster to obtain at least two cluster temperature areas, wherein the battery cluster comprises a plurality of battery modules.
S200, acquiring linear adjustment models and input temperature values corresponding to the cluster temperature areas, wherein the linear adjustment models correspond to the cluster temperature areas one to one.
S300, inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area.
S400, acquiring an actual duty ratio of a fan corresponding to at least one battery module in the cluster temperature area, and adjusting the actual duty ratio of the fan to be a target duty ratio of the fan.
Therefore, the fan that sets up battery module adjusts for the unit, divide battery module at different cluster temperature regions, can be according to the actual condition, according to the fan target duty ratio promptly to the fan actual duty ratio realization pertinence regulation of the battery module in different cluster temperature regions, not only can ensure that the temperature between the different battery modules is close, can effectively improve battery module's life, and the amount of wind that the fan that corresponds formed is high to the validity that the samming acted on, energy utilization is high, the total energy consumption of all fans is less.
It can be understood that, referring to fig. 2, step S100, performing temperature partitioning on the battery modules in the battery cluster to obtain at least two cluster temperature regions, includes the following steps:
s110, setting at least one cluster temperature difference preset value.
And S120, according to the cluster temperature difference preset value, carrying out temperature partitioning on the battery modules in the battery cluster to obtain at least two cluster temperature areas.
It will be appreciated that prior to obtaining the linear adjustment model and the input temperature values corresponding to the cluster temperature zones, the cluster temperature zones are determined by:
acquiring a corresponding module average temperature value in each battery module in the battery cluster; screening to obtain a cluster highest temperature value and a cluster lowest temperature value corresponding to the battery cluster according to the average temperature value of each module; comparing the cluster highest temperature value with the cluster lowest temperature value to obtain a cluster temperature difference value; and obtaining a cluster temperature area corresponding to the cluster temperature difference value according to the cluster temperature difference value and the range of each cluster temperature area.
Specifically, the battery cluster includes a plurality of battery modules, and the battery module includes a plurality of electric cores. The module average temperature value is an average value calculated by all the electric core temperature values in the battery module; the cluster highest temperature value is the module average temperature value of the battery module with the highest temperature in the battery cluster, and the cluster lowest temperature value is the module average temperature value of the battery module with the lowest temperature in the battery cluster; the cluster temperature difference value is calculated by the difference between the cluster highest temperature value and the cluster lowest temperature value.
In the related art, when adjusting the duty ratio of the fan, usually, a plurality of temperature regions are obtained by division, different fan duty ratios are set for different temperature regions, in the same temperature region, the fan duty ratio is set to a fixed value, because the fan duty ratios set for two adjacent temperature regions are different and are respectively fixed and unchangeable values, when two temperature regions are crossed due to temperature change, the fan duty ratio is subjected to mutation, the service life of the fan is seriously influenced, the stability of the whole system is influenced, and the operation mode can cause larger noise.
It can be understood that, in order to avoid the sudden change of the duty ratio of the fan, the input temperature value includes a module average temperature value, the linear regulation model is a first regulation model, the first regulation model includes a first function formula, the first function formula includes a plurality of first linear functions which are connected in series, that is, a function image of the first function formula is a continuous multi-segment line, and the function image of the first function formula specifically refers to fig. 6.
Inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to a battery module in the cluster temperature area, and the method comprises the following steps:
inputting the average temperature value of the module into a first function formula in a first regulation model to obtain a first fan target duty ratio corresponding to the battery module in the cluster temperature area; the average temperature value of the module is a parameter of the first function formula, and the target duty ratio of the first fan is a function value of the first function formula.
The fan target duty ratio can be continuously adjusted according to the average temperature value of the module by setting the linear adjusting model, the duty ratio when the fan operates can be effectively prevented from changing suddenly, the service life of the fan target duty ratio is prolonged, the stability of a battery cluster can be effectively improved, and the noise generated when the fan operates can be effectively reduced.
It can be understood that the first function formula is set as a four-segment linear function, and the vertical axis y is set as the target duty ratio of the fan, and the horizontal axis x is set as the average temperature value of the module.The first linear function is: k is1x+b1，x≤t1(ii) a The second linear function is: k is2x+b2，t1<x≤t2(ii) a The third linear function is: k is3x+b3，t2<x≤t3(ii) a The fourth segment straight line function is: k is4x+b4，t3<x. Wherein, b2＝k1t1+b1-k2t1，b3＝k2t2+b2-k3t2，b4＝k3t3+b3-k4t3。
Optionally, setting b1>0, in the first adjusting model, setting the lowest target duty ratio of the fan to be not 0, and setting the fan in the battery module to keep running when the average temperature of the module is lower because the detection of the temperature of the battery cell is to detect a certain area of the battery cell, so that the air fluidity in the battery module can be ensured, the temperature of each area around the battery cell can be ensured to be close, and the reliability of the temperature value of the battery cell obtained by detecting the battery cell is ensured; in addition, fan target duty cycle is adjusted according to module average temperature value, and module average temperature value is that electric core temperature value is averaged and is obtained in the battery module, probably has the electric core that obviously is higher than module average temperature value in the battery module, sets up the fan duty cycle of minimum and is not 0, can keep certain cooling effect to effectively avoid appearing the too high electric core of temperature in the battery module and influencing the stability of whole battery module.
Specifically, referring to FIG. 6, when the average temperature of the module is less than or equal to t1Then, the target duty cycle of the fan is 0.2; when the average temperature value of the module is t1And t2In the meantime, the target duty ratio of the fan is increased from 0.2 to 0.4 at a constant speed; when the average temperature value of the module is t2And t3In the meantime, the target duty ratio of the fan is increased from 0.4 to 1 at a constant speed; when the average temperature value of the module is greater than t3The fan target duty cycle is 1.
It can be understood that the input temperature value includes a module average temperature value, the input temperature value also includes a module maximum temperature value, the module maximum temperature value is a temperature value of a battery core with a maximum temperature in the battery module, the first regulation model further includes a second function formula, and optionally, the second function formula is a linear function with a slope of 0. Inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area, referring to fig. 3, including the following steps:
s311, obtaining a module preset temperature value in a cluster temperature area corresponding to the first adjusting model.
S312, comparing the highest temperature value of the module with a preset temperature value of the module.
And S313, when the maximum temperature value of the module is greater than the preset temperature value of the module, inputting the maximum temperature value of the module into a second function formula in the first regulation model to obtain a second fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the maximum temperature value of the module is a parameter of the second function formula, and the second fan target duty ratio is a function value of the second function formula.
And S314, when the highest temperature value of the module is less than or equal to the preset temperature value of the module, inputting the average temperature value of the module into a first function formula in the first regulation model to obtain a first fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the average temperature value of the module is a parameter of the first function formula, and the first fan target duty ratio is a function value of the first function formula.
Specifically, the second function formula is that y is 1, and y is the target duty ratio of the fan. In the battery module, when the module maximum temperature value is greater than the module and predetermines the temperature value, adjust the actual duty cycle of the fan in this battery module and be 1, this battery module's fan full-rotating operation promptly can effectively reduce the inside temperature of this battery module, can avoid influencing the life of whole battery module because of the high temperature of certain electric core. The preset temperature value of the module can be set to 38 ℃.
It is to be understood that the input temperature value includes a cluster temperature difference value, and the linear regulation model is a second regulation model including a third functional formula and a fourth functional formula. Inputting the input temperature value into a linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to a battery module in the cluster temperature area, and referring to fig. 4, the method comprises the following steps:
s321, determining a first battery module corresponding to the highest cluster temperature value according to the average module temperature value corresponding to each battery module, and inputting the cluster temperature difference value corresponding to the first battery module into a third function formula to obtain a third fan target duty ratio corresponding to the first battery module, wherein the cluster temperature difference value corresponding to the first battery module is a parameter of the third function formula, and the third fan target duty ratio is a function value of the third function formula.
And S322, determining a second battery module corresponding to the lowest cluster temperature value according to the average module temperature value corresponding to each battery module, and inputting the cluster temperature difference value corresponding to the second battery module into a fourth function formula to obtain a fourth fan target duty ratio corresponding to the second battery module, wherein the cluster temperature difference value corresponding to the second battery module is a parameter of the fourth function formula, and the fourth fan target duty ratio is a function value of the fourth function formula.
The first battery module that corresponds to the highest temperature value of a cluster, and the second battery module that the lowest temperature value of a cluster corresponds carry out solitary regulation respectively, can ensure that first battery module obtains stronger cooling effect, can ensure simultaneously that the fan that the second battery module corresponds reduces the energy consumption with lower duty cycle operation, can make the temperature of each battery module of the inside of battery cluster approach mutually, thereby obtain better samming effect, can prolong the life of battery cluster, can reduce the energy consumption simultaneously.
Specifically, the third function formula and the fourth function formula may be respectively set as two different linear functions; the third function formula can also be set as a plurality of second linear functions which are connected in series, and the fourth function formula can be set as a plurality of third linear functions which are connected in series. When the third function formula is set as a plurality of second linear functions which are continuously connected, the function image of the third function formula specifically refers to fig. 7, and when the cluster temperature difference value is in the first cluster, the temperature value Δ t is preset1And a firstTwo cluster of preset temperature values Δ t2Target duty cycle of fan from A1Increasing to 1, and when the cluster temperature difference value is larger than the preset temperature value delta t of the second cluster2The fan duty cycle remains at 1; when the fourth function formula is set as a plurality of continuously connected third linear functions, the function image of the fourth function formula specifically refers to fig. 8, and when the cluster temperature difference value is in the first cluster, the temperature value Δ t is preset1And a second cluster of preset temperature values Δ t2Target duty cycle of fan from B1The temperature difference value of the cluster is reduced to 0.1 at a constant speed, and when the temperature difference value of the cluster is greater than the preset temperature value delta t of the second cluster2The fan duty cycle is maintained at 0.1. First cluster of preset temperature values Δ t1And a second cluster of preset temperature values Δ t2Can be set to 6 ℃ and 8 ℃ A, respectively1Can be set to 0.2 to 0.4, such as A1＝0.4，B1Can be set to any value in the range of 0.6 to 0.8, such as B1＝0.6。
It is understood that step S300 includes steps S321 and S322, and referring to fig. 4, further includes the following steps:
and S323, determining a third battery module corresponding to the area between the cluster highest temperature value and the cluster lowest temperature value according to the module average temperature value corresponding to each battery module, wherein the fan target duty ratio of the third battery module is obtained according to the steps S311 to S314.
It can be understood that one cluster temperature difference preset value is set, cluster temperature areas are obtained through division according to the cluster temperature difference preset value, and optionally, the cluster temperature difference preset value is set as a first cluster preset temperature value delta t1. When the cluster temperature difference value is smaller than or equal to the cluster temperature difference preset value, in the cluster temperature area, adopting the method steps S311 to S314 to obtain the target duty ratio of the fan; when the cluster temperature difference value is greater than the cluster temperature difference preset value, in the cluster temperature area, the target duty ratio of the fan is obtained by adopting the method steps S321 to S323.
It will be appreciated that after a preset time, the input temperature value is updated; and inputting the updated input temperature value into the linear regulation model corresponding to the cluster temperature area. The actual duty ratio of the fan can be adjusted within the preset time, and the integral temperature equalizing effect of the battery cluster can be effectively ensured.
An embodiment of a second aspect of the present invention provides a fan speed adjusting device, including:
the first processing module 510 is configured to perform temperature partitioning on battery modules in a battery cluster to obtain at least two cluster temperature regions, where the battery cluster includes a plurality of battery modules;
an obtaining module 520, configured to obtain a linear adjustment model corresponding to a cluster temperature region and an input temperature value, where the linear adjustment model corresponds to the cluster temperature region one to one;
the second processing module 530 is configured to input the input temperature value into a linear adjustment model corresponding to the cluster temperature region, so as to obtain a target duty ratio of a fan corresponding to a battery module in the cluster temperature region;
the third processing module 540 is configured to obtain an actual duty ratio of the fan corresponding to at least one battery module in the cluster temperature region, and adjust the actual duty ratio of the fan to a target duty ratio of the fan.
It can be understood that the fan speed regulation device further comprises:
a cycle module 550 for updating the input temperature value after a preset time; and inputting the updated input temperature value into the linear regulation model corresponding to the cluster temperature area.
It should be understood that the above means may be implemented as software, firmware, hardware and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
According to a third aspect of the present invention, there is provided a fan governor device, including:
a memory, a processor and a computer program stored on the memory and operable on the processor, the processor implementing the method of fan speed regulation according to any one of the embodiments of the first aspect when executing the computer program. Wherein the processor and the memory may be connected by a bus or other means.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and these remote memories may be connected to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The non-transitory software programs and instructions required to implement the fan throttling method of the above-described first aspect embodiment are stored in a memory, and when executed by a processor, perform the fan throttling method of the above-described embodiment, e.g., perform the above-described method steps S100 to S400 in fig. 1, method steps S110 to S120 in fig. 2, method steps S311 to S314 in fig. 3, and method steps S321 to S323 in fig. 4.
The above described embodiments of the device are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Furthermore, a fourth embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, which are executed by a processor or a controller, for example, by a processor in the above-mentioned device embodiment, and can make the above-mentioned processor execute the fan speed regulation method in the above-mentioned first embodiment, for example, execute the above-mentioned method steps S100 to S400 in fig. 1, method steps S110 to S120 in fig. 2, method steps S311 to S314 in fig. 3, and method steps S321 to S323 in fig. 4.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The fan speed regulation method is characterized by comprising the following steps:
carrying out temperature partitioning on battery modules in a battery cluster to obtain at least two cluster temperature areas, wherein the battery cluster comprises a plurality of battery modules;
acquiring a linear adjusting model and an input temperature value corresponding to the cluster temperature area, wherein the linear adjusting model corresponds to the cluster temperature area one to one;
inputting the input temperature value into the linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area;
and acquiring the actual duty ratio of the fan corresponding to at least one battery module in the cluster temperature area, and adjusting the actual duty ratio of the fan to the target duty ratio of the fan.
2. The method of claim 1, wherein before the obtaining the linear tuning model and the input temperature value corresponding to the cluster temperature region, the method further comprises:
acquiring a corresponding module average temperature value in each battery module in the battery cluster;
screening to obtain a cluster highest temperature value and a cluster lowest temperature value corresponding to the battery cluster according to the average temperature value of each module;
comparing the cluster highest temperature value with the cluster lowest temperature value to obtain a cluster temperature difference value;
and obtaining the cluster temperature area corresponding to the cluster temperature difference value according to the cluster temperature difference value.
3. The method of claim 1, wherein the input temperature value comprises a module average temperature value, the linear regulation model is a first regulation model, the first regulation model comprises a first function formula, and the first function formula comprises a plurality of first linear functions connected in series;
inputting the input temperature value into the linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area, wherein the method comprises the following steps:
and inputting the module average temperature value into the first function formula in the first regulation model to obtain a first fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the module average temperature value is a parameter of the first function formula, and the first fan target duty ratio is a function value of the first function formula.
4. The method of claim 3, wherein the input temperature values further comprise a module maximum temperature value, and the first regulation model further comprises a second function formula;
inputting the input temperature value into the linear regulation model corresponding to the cluster temperature area to obtain the target duty ratio of the fan corresponding to the battery module in the cluster temperature area, wherein the method comprises the following steps:
acquiring a module preset temperature value in the cluster temperature area corresponding to the first adjusting model;
comparing the highest temperature value of the module with a preset temperature value of the module;
when the module maximum temperature value is larger than the module preset temperature value, inputting the module maximum temperature value into the second function formula in the first regulation model to obtain a second fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the module maximum temperature value is a parameter of the second function formula, and the second fan target duty ratio is a function value of the second function formula;
when the maximum module temperature value is smaller than or equal to the preset module temperature value, inputting the average module temperature value into the first function formula in the first regulation model to obtain a first fan target duty ratio corresponding to the battery module in the cluster temperature area, wherein the average module temperature value is a parameter of the first function formula, and the first fan target duty ratio is a function value of the first function formula.
5. The fan speed control method of claim 2, wherein the input temperature value comprises the cluster temperature difference value, the linear regulation model is a second regulation model, and the second regulation model comprises a third functional formula and a fourth functional formula;
inputting the input temperature value into the linear regulation model corresponding to the cluster temperature area to obtain the target duty ratio of the fan corresponding to the battery module in the cluster temperature area, wherein the method comprises the following steps:
determining a first battery module corresponding to the highest cluster temperature value according to the average module temperature value corresponding to each battery module, and inputting the cluster temperature difference value corresponding to the first battery module into the third function formula to obtain a third fan target duty ratio corresponding to the first battery module, wherein the cluster temperature difference value corresponding to the first battery module is a parameter of the third function formula, and the third fan target duty ratio is a function value of the third function formula;
and determining a second battery module corresponding to the lowest cluster temperature value according to the average module temperature value corresponding to each battery module, and inputting the cluster temperature difference value corresponding to the second battery module into the fourth function formula to obtain a fourth fan target duty ratio corresponding to the second battery module, wherein the cluster temperature difference value corresponding to the second battery module is a parameter of the fourth function formula, and the fourth fan target duty ratio is a function value of the fourth function formula.
6. A method of regulating fan speed according to claim 5,
the third function formula comprises a plurality of second linear functions which are connected in series, and the fourth function formula comprises a plurality of third linear functions which are connected in series.
7. The fan speed control method of claim 1, wherein said inputting the input temperature value into the linear regulation model corresponding to the cluster temperature zone comprises:
updating the input temperature value after a preset time;
and inputting the updated input temperature value into the linear regulation model corresponding to the cluster temperature area.
8. Fan speed adjusting device, its characterized in that includes:
the system comprises a first processing module, a second processing module and a control module, wherein the first processing module is used for carrying out temperature partitioning on battery modules in a battery cluster to obtain at least two cluster temperature areas, and the battery cluster comprises a plurality of battery modules;
the acquisition module is used for acquiring a linear adjustment model and an input temperature value corresponding to the cluster temperature area, wherein the linear adjustment model corresponds to the cluster temperature area one to one;
the second processing module is used for inputting the input temperature value into the linear regulation model corresponding to the cluster temperature area to obtain a target duty ratio of a fan corresponding to the battery module in the cluster temperature area;
and the third processing module is used for acquiring the actual duty ratio of the fan corresponding to at least one battery module in the cluster temperature area and adjusting the actual duty ratio of the fan to the target duty ratio of the fan.
9. Fan speed governing equipment, its characterized in that includes:
a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the fan speed control method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium comprising computer-executable instructions stored thereon for performing the fan speed control method of any of claims 1-7.
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