CN114110997B - Operation frequency control method of air conditioner, air conditioner and storage medium - Google Patents
Operation frequency control method of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN114110997B CN114110997B CN202010901128.0A CN202010901128A CN114110997B CN 114110997 B CN114110997 B CN 114110997B CN 202010901128 A CN202010901128 A CN 202010901128A CN 114110997 B CN114110997 B CN 114110997B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an operation frequency control method of an air conditioner, which comprises the following steps: the method comprises the steps that after the air conditioner is started, the temperature change value and the running frequency of the environment temperature are obtained regularly; determining a marginal loss value according to the temperature change value and the operating frequency; and adjusting the operation frequency of the compressor according to the marginal loss value, wherein the marginal loss value is inversely related to the adjustment proportion for adjusting the operation frequency. The invention also provides an air conditioner and a storage medium. The operation frequency control method of the air conditioner determines the marginal loss value at regular time, and based on the fact that the adjustment proportion of the marginal loss value and the adjustment operation frequency is in a negative correlation relationship, the operation frequency of the compressor is dynamically adjusted according to the marginal loss value, high energy consumption caused by long-time high-frequency operation of the compressor is avoided, and energy and electricity are saved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an operating frequency control method of an air conditioner, the air conditioner and a storage medium.
Background
In the existing control method of the air conditioner, if the current temperature is higher than the set temperature of a user in a refrigeration mode, a compressor of the air conditioner is controlled to operate at the highest frequency; and if the current temperature is lower than the set temperature of the user, controlling the compressor of the air conditioner to run at the lowest frequency. When the current temperature is higher than the set temperature of the user, namely the refrigeration requirement of the user is not met, the air conditioner is controlled to operate at the highest frequency, although the cooling speed is high, after the air conditioner operates for a long time, the environmental temperature cannot change greatly, or the space acted by the air conditioner is too large or the refrigeration capacity is insufficient, so that the temperature cannot be reached, and if a compressor of the air conditioner still operates at the highest frequency, the energy consumption is high.
The above is only for the purpose of aiding understanding of the technical solutions 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 an operation frequency control method of an air conditioner, the air conditioner and a storage medium, and aims to solve the problem that the air conditioner is fixedly operated according to set factory parameters, the operation frequency of the air conditioner cannot be dynamically changed, and the energy consumption of the air conditioner is large.
In order to achieve the above object, the present invention provides an operation frequency control method of an air conditioner, including:
the method comprises the steps that after the air conditioner is started, the temperature change value and the running frequency of the environment temperature are obtained regularly;
determining a marginal loss value according to the temperature change value and the operating frequency;
and adjusting the operation frequency of the compressor according to the marginal loss value, wherein the marginal loss value is inversely related to an adjusting parameter for adjusting the operation frequency.
Optionally, the step of adjusting the operating frequency of the compressor according to the marginal loss value comprises:
and when the marginal loss value is smaller than a preset marginal loss value, reducing the running frequency of the compressor.
Optionally, before the step of reducing the operating frequency of the compressor when the marginal loss value is less than a preset marginal loss value, the method includes:
acquiring a current power-saving gear;
and acquiring a marginal loss value corresponding to the power saving gear as the preset marginal loss value.
Optionally, when the marginal loss value is less than a preset marginal loss value, the step of reducing the operating frequency of the compressor includes:
when the marginal loss value is smaller than a preset marginal loss value, determining the frequency reduction proportion of the operating frequency according to the marginal loss value;
reducing the operating frequency of the compressor in accordance with the downconversion ratio.
Optionally, the step of determining the down-conversion ratio of the operating frequency according to the marginal loss value includes:
acquiring a preset marginal loss interval where the marginal loss value is located;
and acquiring the frequency reduction proportion corresponding to the preset marginal loss interval.
Optionally, when the marginal loss value is less than a preset marginal loss value, the step of reducing the operating frequency of the compressor includes:
when the marginal loss value is smaller than a preset marginal loss value, acquiring a target power saving gear corresponding to the marginal loss value;
and reducing the running frequency of the compressor according to the frequency reduction proportion corresponding to the target power saving gear.
Optionally, before the step of reducing the operating frequency of the compressor according to the down-conversion ratio corresponding to the target power saving gear, the method includes:
acquiring a current power-saving gear;
and when the current power-saving gear is not matched with the target power-saving gear, switching the current power-saving gear to the target power-saving gear.
Optionally, the step of adjusting the operating frequency of the compressor according to the marginal loss value further comprises:
and when the marginal loss value is larger than a preset marginal loss value, keeping the running frequency of the compressor unchanged.
Further, to achieve the above object, the present invention also provides an air conditioner including: the air conditioner comprises a memory, a processor and an operation frequency control program of the air conditioner, wherein the operation frequency control program of the air conditioner is stored in the memory and can run on the processor, and when being executed by the processor, the operation frequency control program of the air conditioner realizes the steps of the operation frequency control method of the air conditioner.
In addition, to achieve the above object, the present invention also provides a storage medium having an operating frequency control program of an air conditioner stored thereon, which when executed by the processor, implements the respective steps of the operating frequency control method of the air conditioner as described above.
According to the practical application condition, the temperature change value is large in a certain time of high-frequency operation when the air conditioner is started, the temperature change value is gradually reduced along with the long-time operation of the subsequent air conditioner even if the air conditioner keeps high-frequency operation, and in the process, after the air conditioner operates for a long time, the environmental temperature is low in regulating capacity, namely the temperature change value is small, and the problem of high energy consumption is caused under the condition that the same time length operation frequency is kept unchanged, namely the energy consumption is the same.
According to the operation frequency control method of the air conditioner, the marginal loss value is determined at regular time, and due to the fact that the marginal loss value is related to the temperature change value and the operation frequency, under the condition that the operation frequency is kept unchanged, the marginal loss value is determined to be related to the temperature change value, namely, the change situation of the temperature change value can be fed back through the marginal loss value. The operation frequency of the compressor is dynamically adjusted according to the marginal loss value, namely, the change of the temperature change value in the operation process of the air conditioner is changed to realize the dynamic adjustment of the operation frequency of the compressor, so that high energy consumption caused by long-time high-frequency operation of the compressor is avoided, more energy and electricity are saved, and the intelligent control of the operation frequency of the compressor is realized by dynamically adjusting the operation frequency of the compressor according to the marginal loss value.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to various embodiments of an operating frequency control method of an air conditioner of the present invention;
fig. 2 is a schematic flow chart illustrating a first embodiment of an operating frequency control method of an air conditioner according to the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of an operating frequency control method of an air conditioner according to the present invention;
fig. 4 is a flowchart illustrating a method for controlling an operating frequency of an air conditioner according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating a fourth embodiment of an operating frequency control method of an air conditioner according to the present invention;
fig. 6 is a schematic flow chart illustrating the switching of power saving gears in a fourth embodiment of the operating frequency control method of an air conditioner 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 are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to various embodiments of an operating frequency control method of an air conditioner of the present invention.
The execution subject of the embodiment of the operation frequency control method of the air conditioner of the present invention may be the air conditioner.
As shown in fig. 1, the air conditioner may include: a processor 101, a communication bus 102, and a memory 103. It will be understood by those skilled in the art that the block diagram of the air conditioner shown in fig. 1 does not constitute a limitation of the terminal, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. The processor 101 is a control center of the air conditioner, the communication bus 102 is used for realizing connection and communication among various components of the air conditioner, and the memory 103 stores a central control system and an operation frequency control program of the air conditioner. The processor 101 executes an operation frequency control program of the air conditioner stored in the memory 103 to implement the steps of the embodiments of the operation frequency control method of the air conditioner of the present invention.
Based on the structural block diagram of the terminal device, various embodiments of the operating frequency control method of the air conditioner of the present invention are provided.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a first embodiment of an operation frequency control method of an air conditioner according to the present invention. In this embodiment, the operation frequency control method of the air conditioner includes the steps of:
step S10, regularly acquiring a temperature change value and an operating frequency of the ambient temperature after the air conditioner is started;
ambient temperature refers to the ambient temperature in the room. The temperature change value refers to an absolute value corresponding to a difference between the ambient temperatures acquired two consecutive times. The temperature change value of the ambient temperature is obtained at regular time, and the ambient temperature can be obtained at regular time according to a preset time interval after the air conditioner is started, so as to obtain an absolute value of a difference value of the ambient temperatures obtained twice continuously.
The obtaining of the ambient temperature may be obtained by detecting the indoor ambient temperature through an ambient temperature detecting device disposed in the air conditioner, such as a temperature sensor or a temperature sensing bulb, or indirectly obtained by detecting the indoor ambient temperature through a remote controller, or may be obtained by detecting the second ambient temperature obtained by detecting the indoor ambient temperature through the remote controller while detecting the first ambient temperature through the ambient temperature detecting device of the air conditioner, and determining an average value of the first ambient temperature and the second ambient temperature as the ambient temperature. The obtained operating frequency can be directly detected and obtained by the detection device, and can also be obtained from a main control chip of the air conditioner, which is not limited.
Step S20, determining a marginal loss value according to the temperature change value and the operating frequency;
the marginal loss value is a temperature variation value of the ambient temperature generated per unit power, that is, a temperature variation value of the ambient temperature generated per unit power consumption or per unit energy consumption, based on a preset time interval. The power per unit is understood to mean the power generated in the corresponding time span of the predetermined time interval, and the power per unit is determined by the product of the operating frequency and the time span of the predetermined time interval. Specifically, the marginal loss value may be determined by a ratio of a temperature change value corresponding to a preset time interval to the operating frequency, that is, a temperature change value of the ambient temperature generated per unit operating frequency in the preset time interval.
It should be noted that, based on the preset time interval, each unit of power is power generated by the preset time interval corresponding to the duration, and the marginal loss value is a temperature variation value of the ambient temperature generated by each unit of operating frequency in the preset time interval, so that the marginal loss value may be understood as a temperature variation value of the ambient temperature generated by each unit of power based on the preset time interval.
And S30, adjusting the running frequency of the compressor according to the marginal loss value, wherein the marginal loss value is inversely related to an adjusting parameter for adjusting the running frequency.
Adjusting the operating frequency of the compressor according to the marginal loss value may be performed by presetting a corresponding relationship between the marginal loss value and the operating frequency of the compressor, where the corresponding relationship may be that a frequency reduction ratio is determined by the marginal loss value, and the operating frequency of the compressor is indirectly adjusted according to the frequency reduction ratio based on the current operating frequency of the compressor, so that the compressor operates according to the adjusted operating frequency.
The marginal loss value is inversely related to an adjustment parameter for adjusting the operating frequency, where the adjustment parameter may be an adjustment ratio, or may be a specific unit adjustment value, which is not limited herein. Based on the determined adjustment parameter, the operating frequency of the compressor can be adjusted up or down. Optionally, the adjustment parameter is an adjustment ratio, and when the adjustment parameter is the adjustment ratio, the marginal loss value is inversely related to the adjustment ratio for adjusting the operating frequency, that is, the larger the marginal loss value is, the smaller the adjustment ratio is, the smaller the marginal loss value is, the larger the adjustment ratio is.
It should be noted that the larger the marginal loss value is, the larger the temperature change value of the ambient temperature generated per unit power is based on the preset time interval, that is, the higher the regulation capability of the indoor ambient temperature is, the operating frequency of the compressor is regulated according to a small regulation ratio, so that the compressor still operates at a frequency close to the original operating frequency, so as to realize efficient regulation of the indoor ambient temperature, further quickly reach the temperature required by the user, and increase the comfort of the user; the smaller the marginal loss value is, the smaller the temperature change value of the ambient temperature generated per unit power is based on a preset time interval, that is, the same operation frequency is adopted within a preset time period, the energy consumption is the same, but the regulation capability of the indoor ambient temperature is reduced.
The adjusting capacity can be determined by the temperature change value of the environment temperature, the larger the temperature change value is, the higher the adjusting capacity is, the smaller the temperature change value is, and the lower the adjusting capacity is, so that in order to reduce unnecessary energy consumption, the energy consumption can be reduced by reducing the operation frequency. Alternatively, the operating frequency may be reduced by an adjustment ratio to reduce power consumption. It will be appreciated that the operating frequencies each satisfy a condition of being greater than or equal to a minimum operating frequency of the compressor.
To facilitate understanding of the present embodiment, an adjusting process of adjusting the operating frequency of the compressor according to the marginal loss value, which is inversely related to an adjusting parameter, such as an adjusting ratio, for adjusting the operating frequency, is illustrated below in a cooling mode of the air conditioner, wherein the air conditioner is operated in a high-frequency cooling mode after being turned on, the marginal loss value is determined every 5 minutes, and the operating frequency of the compressor is adjusted according to the adjusting ratio corresponding to the marginal loss value. The specific adjustment process is as follows:
starting the machine for 5 minutes, wherein the ambient temperature is 29 degrees, the marginal loss value is 0.5 degree of the annular degree change value generated by each unit of power, and the frequency operation is reduced by 2 percent;
starting the machine for 10 minutes, wherein the ambient temperature is 27 degrees, the marginal loss value is 0.45 degree of temperature change value generated by each unit of power, and the frequency is reduced by 5 percent for operation;
starting the machine for 15 minutes, wherein the ambient temperature is 25.5 degrees, the marginal loss value is 0.4 degree of temperature change value generated by each unit power, and the frequency operation is reduced by 8 percent;
starting the machine for 25 minutes, wherein the ambient temperature is 23.5 degrees, the marginal loss value is 0.2 degree of temperature change value generated by each unit power, and the frequency is reduced by 50 percent for operation;
and starting the machine for 35 minutes, wherein the ambient temperature is 23 degrees, the marginal loss value is 0.1 degree of temperature change value generated per unit power, and the frequency is reduced by 80 percent.
As can be seen from the above example, the larger the marginal loss value is, the smaller the down conversion ratio is, and the smaller the marginal loss value is, the larger the down conversion ratio is.
According to the practical application condition, the temperature change value is large in a certain time of high-frequency operation when the air conditioner is started, the temperature change value is gradually reduced along with the long-time operation of the subsequent air conditioner even if the air conditioner keeps high-frequency operation, and in the process, after the air conditioner operates for a long time, the environmental temperature is low in regulating capacity, namely the temperature change value is small, and the problem of high energy consumption is caused under the condition that the same time length operation frequency is kept unchanged, namely the energy consumption is the same. In the technical solution disclosed in this embodiment, the marginal loss value is determined at a fixed time, and since the marginal loss value is related to the temperature change value and the operating frequency, the determination of the marginal loss value is related to the temperature change value under the condition that the operating frequency is kept unchanged, that is, the change condition of the temperature change value can be fed back through the marginal loss value. The operation frequency of the compressor is dynamically adjusted according to the marginal loss value, namely, the change of the temperature change value in the operation process of the air conditioner is changed to realize the dynamic adjustment of the operation frequency of the compressor, so that high energy consumption caused by long-time high-frequency operation of the compressor is avoided, more energy and electricity are saved, and the intelligent control of the operation frequency of the compressor is realized by dynamically adjusting the operation frequency of the compressor according to the marginal loss value.
Referring to fig. 3, fig. 3 is a flowchart illustrating a second embodiment of the method for controlling an operating frequency of an air conditioner according to the present invention based on the first embodiment. In this embodiment, step S30 includes:
and S31, when the marginal loss value is less than or equal to a preset marginal loss value, reducing the running frequency of the compressor.
In the practical application process, the air conditioner operates at a high cooling speed according to a high operating frequency such as the highest operating frequency after being started, namely, the temperature change value in a preset time interval is large, and along with the long-time operation of the subsequent air conditioner according to the high operating frequency, the temperature change value in the preset time interval can be gradually reduced due to too large indoor space or insufficient capacity of the air conditioner, even the temperature required by a user can not be reached, and the power consumption is high because the air conditioner still operates according to the high operating frequency.
The preset marginal loss value is a marginal loss value corresponding to a condition that power consumption is high and an adjusting capability for the indoor ambient temperature is low based on the current operating frequency of the compressor, wherein the adjusting capability is low and can be determined by a temperature change value of the ambient temperature, for example, when the temperature change value of the ambient temperature in a preset time interval is smaller than a preset value, the adjusting capability for the indoor ambient temperature can be considered to be low. It should be noted that the preset marginal loss value may be considered as an optimal boundary value for saving energy while satisfying the user's demand for the ambient temperature, i.e., the user's comfortable feeling.
The marginal loss value is determined based on a preset time interval and a temperature change value of the environment temperature generated per unit power, and the marginal loss value is smaller than or equal to the preset marginal loss value, which can be understood as being in a state of high power consumption and low regulation capacity of the indoor environment temperature based on the current operation frequency of the compressor, so that the aim of reducing energy consumption is fulfilled by reducing the operation frequency of the compressor, and the stability of the current environment temperature can be realized.
As an alternative embodiment, in step S31, when the marginal loss value is less than or equal to the preset marginal loss value, the operating frequency of the compressor is decreased, wherein the marginal loss value is inversely related to the adjustment proportion for adjusting the operating frequency.
As an optional implementation manner, step S31 includes:
acquiring a current power-saving gear;
and acquiring a marginal loss value corresponding to the power saving gear as the preset marginal loss value.
Obtain current power saving gear, can be directly through obtaining power saving gear sign, through power saving gear sign in order to confirm current power saving gear, specifically, record current power saving gear through setting up power saving gear sign in advance, when being pressed and triggered based on detecting the button or the button that the power saving gear corresponds, obtain the power saving grade of power saving gear, set up power saving gear sign and update in order to realize power saving gear sign. It should be noted that the marginal loss value corresponding to the power saving gear is obtained as a preset marginal loss value, and the marginal loss value is set for each power saving gear in advance, and may be a specific numerical value or a numerical value interval. When the marginal loss value is a numerical range, the minimum value of the numerical range can be set and determined as the marginal loss value corresponding to the power saving gear.
Optionally, when the marginal loss value is greater than a preset marginal loss value, the operating frequency of the compressor is kept unchanged. It should be noted that the marginal loss value is greater than the preset marginal loss value, which can be understood as that, based on the current operating frequency of the compressor, the adjusting capability of the indoor ambient temperature is high, and the operating frequency of the compressor is kept unchanged to realize efficient adjustment of the indoor ambient temperature, so that the temperature required by a user is quickly reached, and the comfort of the user is increased.
In order to facilitate understanding of the embodiment, the operation frequency of the compressor is adjusted by comparing the marginal loss value with a preset marginal loss value in the cooling mode of the air conditioner according to the operation frequency control mode of the compressor corresponding to the comparison result. The preset marginal loss value is that the temperature change value generated by unit power is 0.2 degrees, the air conditioner operates in a high-frequency refrigeration mode after being started, the marginal loss value is determined every 5 minutes, and whether the operation of frequency reduction is started or not is judged according to the obtained marginal loss value, and the frequency operation is reduced. The specific process is as follows:
starting the machine for 5 minutes, wherein the ambient temperature is 29 degrees, the marginal loss value is 0.5 degree of ring degree change generated by each unit of power, and the high-frequency operation is kept;
starting the machine for 10 minutes, wherein the ambient temperature is 27 degrees, the marginal loss value is 0.45 degree of temperature change value generated by each unit of power, and the high-frequency operation is kept;
starting the machine for 15 minutes, wherein the ambient temperature is 25.5 degrees, the marginal loss value is 0.4 degree of temperature change value generated by each unit of power, and the high-frequency operation is kept;
starting the machine for 25 minutes, wherein the ambient temperature is 23.5 degrees, the marginal loss value is 0.2 degree of temperature change value generated by each unit power, and the frequency is reduced by 50 percent for operation;
and starting the machine for 35 minutes, wherein the ambient temperature is 23 degrees, the marginal loss value is 0.1 degree of temperature change value generated by each unit of power, and the frequency is reduced by 80 percent for operation.
Therefore, when the marginal loss value is 0.2 degrees of temperature change value generated per unit power, the frequency reduction operation is started; when the marginal loss value is less than or equal to 0.2 degrees of the temperature change value generated per unit power, the lower the marginal loss value is, namely the lower the temperature change value generated per unit power is, the higher the frequency reduction proportion is; and when the marginal loss value is greater than the temperature change value generated per unit power by 0.2 degrees, keeping the operation frequency unchanged.
In the technical solution disclosed in this embodiment, when the change of the temperature change value is fed back based on the marginal loss value, and the marginal loss value is less than or equal to the preset marginal loss value, that is, when the temperature change value is less than the preset change value, it indicates that even if the current operating frequency of the compressor is kept unchanged, the adjusting capability for the ambient temperature is low, the ambient temperature cannot be changed greatly, the energy consumption is large, and the compressor can be throttled by reducing the operating frequency of the compressor to realize throttling, wherein the preset marginal loss value can be regarded as a boundary value for saving energy while meeting the requirement of the user for the ambient temperature, that is, the comfort of the user is good, and when the marginal loss value is less than or equal to the preset marginal loss value, the operating frequency of the compressor is reduced, so that the balance between the good comfort of the user and energy saving is realized.
Referring to fig. 4, fig. 4 is a flowchart illustrating a method for controlling an operating frequency of an air conditioner according to a third embodiment of the present invention based on the second embodiment. In this embodiment, step S31 includes:
step S311, when the marginal loss value is smaller than a preset marginal loss value, determining the frequency reduction proportion of the operating frequency according to the marginal loss value;
and S312, reducing the operating frequency of the compressor according to the frequency reduction proportion.
Determining the frequency reduction proportion of the operating frequency according to the marginal loss value, presetting a corresponding relation between the marginal loss value and the frequency reduction proportion of the operating frequency, wherein the corresponding relation can be an algebraic relation between the marginal loss value and the frequency reduction proportion of the operating frequency, and determining the frequency reduction proportion of the operating frequency through the marginal loss value based on the algebraic relation; the present invention may also be configured to obtain a corresponding relationship between the marginal loss value and the frequency reduction ratio of the operating frequency by analyzing a large amount of test experimental data on the frequency reduction ratio of the marginal loss value and the operating frequency, so that the frequency reduction ratio of the operating frequency determined by the marginal loss value maintains the current ambient temperature while saving energy, i.e., reducing energy consumption, to meet the temperature requirement of a user and increase comfort, which is not specifically limited in this embodiment.
Optionally, the determining the frequency reduction ratio of the operating frequency according to the marginal loss value in step S311 includes:
acquiring a preset marginal loss interval where the marginal loss value is located;
and acquiring the frequency reduction proportion corresponding to the preset marginal loss interval.
The method comprises the steps of obtaining a frequency reduction proportion corresponding to a preset marginal loss interval, presetting a corresponding relation between the marginal loss interval and the frequency reduction proportion, and determining the corresponding relation based on a large amount of test experiment data about the frequency reduction proportion of the marginal loss value and the operating frequency. After the marginal loss value is obtained based on the corresponding relation between the set marginal loss interval and the frequency reduction proportion, the target marginal loss interval to which the marginal loss value belongs is determined by comparing the marginal loss value with the preset marginal loss interval, and the frequency reduction proportion corresponding to the marginal loss value is further determined indirectly through the target marginal loss interval.
In the technical solution disclosed in this embodiment, when the marginal loss value is smaller than or equal to the preset marginal loss value, that is, the temperature change value is smaller than the preset change value, based on the change of the marginal loss value feedback temperature change value, it indicates that even if the current operating frequency of the compressor is kept unchanged, the ambient temperature regulation capability is low, and the ambient temperature cannot be changed greatly, resulting in a problem of large energy consumption. The frequency reduction proportion of the operating frequency is determined according to the marginal loss value, on the basis that the marginal loss value is inversely related to the adjustment parameter of the compressor, namely the frequency reduction proportion, the smaller the marginal loss value is, namely the smaller the temperature change value is, the larger the frequency reduction proportion is, so as to realize greater energy conservation.
Referring to fig. 5, a fourth embodiment of the method for controlling an operating frequency of an air conditioner according to the present invention is provided based on the second embodiment, and fig. 5 is a flowchart illustrating the fourth embodiment of the method for controlling an operating frequency of an air conditioner according to the present invention. In this embodiment, step S31 includes:
step S313, when the marginal loss value is smaller than a preset marginal loss value, a target power saving gear corresponding to the marginal loss value is obtained;
and step S314, reducing the running frequency of the compressor according to the frequency reduction ratio corresponding to the target power saving gear.
The target power saving gear corresponding to the marginal loss value is obtained, a corresponding relation between the marginal loss value and the power saving gear can be preset, the corresponding relation is through setting a threshold interval of the marginal loss value, and the power saving gear is set corresponding to the threshold interval, wherein when the threshold interval of the marginal loss value is multiple, each threshold interval corresponds to one power saving gear, for example:
when Q < =0.3 degrees and Q > =0.2 degrees, an ultra-power saving gear is set;
when Q < =0.2 degrees and Q > =0.1 degrees, a middle power saving gear is set;
when Q < =0.1 degrees and Q > =0 degrees, a low power saving gear position is set; the marginal loss value is represented by Q, i.e., the temperature change per unit power generated.
When the marginal loss value is obtained, the marginal loss value is compared with a preset threshold value interval of the marginal loss value, the threshold value interval of the marginal loss value to which the marginal loss value belongs is determined, and then the power saving gear corresponding to the threshold value interval is used as a target power saving gear. After the determined target power saving gear is determined, the operating frequency of the compressor is reduced according to the frequency reduction proportion corresponding to the target power saving gear, it should be noted that the corresponding relationship between the power saving gear and the frequency reduction proportion may be preset, which is exemplified by the above example:
the frequency reduction proportion corresponding to the super power-saving gear can be preset to be 30 percent so as to adjust the compressor to operate according to the operation frequency reduced by 30 percent;
setting the frequency reduction proportion corresponding to the middle power-saving gear to be 50% so as to adjust the compressor to operate according to the operating frequency reduced by 50%;
and setting the frequency reduction proportion corresponding to the low power-saving gear to be 80% so as to adjust the compressor to operate according to the operation frequency reduced by 80%.
As can be seen from the above example, the threshold ranges of different marginal loss values correspond to power saving gears of different levels; the power saving gears of different levels correspond to different frequency reduction ratios. It can be understood that, the larger the maximum threshold determined in the threshold range of the set marginal loss value is, the earlier the compressor may be adjusted to perform the frequency reduction operation, and then the same operation time, since the compressor performs the frequency reduction operation earlier, the earlier the compressor performs the energy saving, that is, the consumption of the electric energy is reduced, it should be noted that, the larger the boundary value (minimum value) of the threshold range of the marginal loss value is, the higher the power saving level of the corresponding power saving gear is, as in the above example, the power saving levels are in the order from high to low: an ultra-power-saving gear, a middle power-saving gear and a low power-saving gear.
As an alternative embodiment, please refer to fig. 6, fig. 6 is a schematic flow chart illustrating the operation frequency control method of the air conditioner of the present invention for switching the power saving gear in the embodiment, and step S314 includes:
step S40, acquiring a current power-saving gear;
and S50, when the current power-saving gear is not matched with the target power-saving gear, switching the current power-saving gear to the target power-saving gear.
It should be noted that, when the current power saving gear does not match the target power saving gear, there are two cases:
in the first case: the power saving level of the current power saving gear is lower than that of the target power saving gear, and the compressor can perform frequency reduction operation earlier by switching the current power saving gear to the target power saving gear, namely, switching from the low power saving level to the high power saving level, so that the power consumption is reduced;
in the second case: the power saving grade of current power saving gear is higher than the power saving grade of target power saving gear, through switching current power saving gear to target power saving gear, also switches to low power saving grade from high power saving grade, can postpone the compressor and reduce the frequency and move, adjusts current ambient temperature to increase user's comfort under the current environment.
In the second embodiment, the marginal loss value corresponding to the power saving gear is obtained as the preset marginal loss value, and the preset marginal loss value can be changed by switching the power saving gear.
In the technical solution disclosed in this embodiment, when the marginal loss value is smaller than or equal to the preset marginal loss value, that is, the temperature change value is smaller than the preset change value, based on the change of the marginal loss value feedback temperature change value, it indicates that even if the current operating frequency of the compressor is kept unchanged, the ambient temperature regulation capability is low, and the ambient temperature cannot be changed greatly, resulting in a problem of large energy consumption. The target power saving gear is determined through the marginal loss value, the frequency reduction proportion is further determined through the target power saving gear, the running frequency of the compressor is reduced according to the frequency reduction proportion, namely, different marginal loss values correspond to different power saving gears, and different power saving gears correspond to different frequency reduction proportions.
On the basis that the marginal loss value is inversely related to the adjustment parameter of the compressor, namely the frequency reduction proportion, different frequency reduction proportions are adopted for different marginal loss values by setting a plurality of power saving gears, wherein the smaller the marginal loss value is, namely the smaller the temperature change value is, the larger the frequency reduction proportion is, so that the energy conservation to the greater extent is realized.
The present invention also provides an air conditioner, comprising: the method comprises a memory, a processor and an operation frequency control program of the air conditioner, wherein the operation frequency control program of the air conditioner is stored in the memory and can be operated on the processor, and the operation frequency control program of the air conditioner realizes the steps of the operation frequency control method of the air conditioner in any embodiment when being executed by the processor.
The present invention also provides a storage medium having an operating frequency control program of an air conditioner stored thereon, wherein the operating frequency control program of the air conditioner, when executed by a processor, implements the steps of the operating frequency control method of the air conditioner according to any one of the above embodiments.
In the embodiments of the terminal device and the readable storage medium provided by the present invention, all technical features of the embodiments of the operation frequency control method of the air conditioner are included, and the expanding and explaining contents of the specification are basically the same as those of the embodiments of the operation frequency control method of the air conditioner, and are not described herein again.
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 (9)
1. An operation frequency control method of an air conditioner, characterized by comprising:
the method comprises the steps that after the air conditioner is started, the temperature change value and the running frequency of the environment temperature are obtained regularly;
determining a marginal loss value according to the temperature change value and the operating frequency; and (c) a second step of,
when the marginal loss value is less than or equal to a preset marginal loss value, the running frequency of the compressor is reduced, wherein the marginal loss value is inversely related to an adjusting parameter for adjusting the running frequency, the marginal loss value is a temperature change value of the ambient temperature generated by each unit of power consumption or each unit of energy consumption, the marginal loss value is less than or equal to the preset marginal loss value and is used for representing the current running frequency of the compressor, the compressor is in a state that the power consumption is high and the regulating capacity of the indoor ambient temperature is low, and the regulating capacity of the indoor ambient temperature is determined according to the temperature change value.
2. The operating frequency control method of an air conditioner according to claim 1, wherein the step of reducing the operating frequency of the compressor when the marginal loss value is less than a preset marginal loss value is preceded by:
acquiring a current power-saving gear;
and acquiring a marginal loss value corresponding to the power saving gear as the preset marginal loss value.
3. The operating frequency control method of an air conditioner according to claim 1, wherein the step of lowering the operating frequency of the compressor when the marginal loss value is less than a preset marginal loss value comprises:
when the marginal loss value is smaller than a preset marginal loss value, determining the frequency reduction proportion of the operating frequency according to the marginal loss value;
reducing the operating frequency of the compressor in accordance with the downconversion ratio.
4. The operating frequency control method of an air conditioner according to claim 3, wherein the step of determining the down-conversion ratio of the operating frequency according to the marginal loss value comprises:
acquiring a preset marginal loss interval where the marginal loss value is located;
and acquiring the frequency reduction proportion corresponding to the preset marginal loss interval.
5. The operating frequency control method of an air conditioner according to claim 1 or 2, wherein the step of lowering the operating frequency of the compressor when the marginal loss value is less than a preset marginal loss value comprises:
when the marginal loss value is smaller than a preset marginal loss value, acquiring a target power saving gear corresponding to the marginal loss value;
and reducing the running frequency of the compressor according to the frequency reduction proportion corresponding to the target power saving gear.
6. The method as claimed in claim 5, wherein the step of reducing the operating frequency of the compressor according to the down-conversion ratio corresponding to the target power saving gear comprises:
acquiring a current power-saving gear;
and when the current power-saving gear is not matched with the target power-saving gear, switching the current power-saving gear to the target power-saving gear.
7. The operating frequency control method of an air conditioner according to claim 1, further comprising, after the step of determining a marginal loss value according to the temperature variation value and the operating frequency:
and when the marginal loss value is greater than a preset marginal loss value, keeping the running frequency of the compressor unchanged.
8. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor, and an operating frequency control program of an air conditioner stored in the memory and operable on the processor, the operating frequency control program of the air conditioner implementing the steps of the operating frequency control method of the air conditioner as set forth in any one of claims 1 to 7 when executed by the processor.
9. A storage medium having an operating frequency control program of an air conditioner stored thereon, the operating frequency control program of the air conditioner, when being executed by a processor, implementing the steps of the operating frequency control method of the air conditioner according to any one of claims 1 to 7.
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