CN109827309B - Load-based air conditioner control method and device and air conditioner system - Google Patents
Load-based air conditioner control method and device and air conditioner system Download PDFInfo
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- CN109827309B CN109827309B CN201910028029.3A CN201910028029A CN109827309B CN 109827309 B CN109827309 B CN 109827309B CN 201910028029 A CN201910028029 A CN 201910028029A CN 109827309 B CN109827309 B CN 109827309B
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Abstract
The invention discloses a load-based air conditioner control method, a control device and an air conditioner system, wherein the method comprises the following steps: detecting whether the load of an air conditioning action area changes or not; when the load changes, determining the frequency adjustment quantity of the compressor according to the change of the load; the frequency of the compressor is adjusted according to the frequency adjustment amount. The invention solves the problem of lagging temperature regulation in the prior art, quickly regulates the frequency of the compressor and keeps the temperature in the action area of the air conditioner to be stable for a long time.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a load-based air conditioner control method, a load-based air conditioner control device and an air conditioner.
Background
At present, most of temperature control methods of variable frequency air conditioners regulate the frequency of a compressor by applying a PID algorithm or a fuzzy control algorithm according to the difference value of indoor temperature and set temperature so as to regulate the temperature. Such a control method has a drawback in that the temperature adjustment is too late. Because this method needs to wait until the reference temperature (which may be the temperature of the temperature controller or the temperature of the return air) and the set temperature reach a certain difference, and feed back the difference to the air conditioner, the air conditioner will start to adjust the frequency of the compressor, and the air conditioner can only adjust the frequency of the compressor one step by one step according to the temperature feedback to slowly approach the target frequency. This waiting plus a feedback adjustment undoubtedly greatly increases the lag time in regulating the temperature to a steady state, affecting the comfort of the air conditioner.
Aiming at the problem of air conditioner temperature regulation lag in the related art, no effective solution is provided at present.
Disclosure of Invention
The invention provides a load-based air conditioner control method, a load-based air conditioner control device and an air conditioner, and at least solves the problem of air conditioner temperature regulation lag in the prior art.
In order to solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided a load-based air conditioner control method including: detecting whether the load of an air conditioning action area changes or not; when the load changes, determining the frequency adjustment quantity of the compressor according to the change of the load; the frequency of the compressor is adjusted according to the frequency adjustment amount.
Further, before detecting whether the load of the air conditioning action area changes, the method further comprises the following steps: before the air conditioner is started, detecting the ambient temperature of an air conditioner action area; after the air conditioner is started, the ambient temperature is adjusted until a preset target temperature is reached.
Further, determining a frequency adjustment amount of the compressor according to the change of the load includes: detecting the current ambient temperature of an air conditioning action area, and acquiring a preset target temperature; wherein, the ambient temperature of the air conditioning action area changes along with the load change; calculating the variation of the load; and determining the frequency adjustment amount of the compressor according to the variable quantity of the load, the current environment temperature and the preset target temperature.
Further, calculating the amount of change in load includes: detecting the heat source area of the air conditioning action area and the total area of the air conditioning action area; and calculating the ratio of the heat source area to the total area, and obtaining the load variation according to the ratio.
Further, determining a frequency adjustment amount of the compressor according to the amount of change of the load, the current ambient temperature, and a preset target temperature includes: inquiring whether unit load frequency variation corresponding to the current environment temperature and the preset target temperature exists in a database; the unit load frequency variation corresponding to different environmental temperatures and different preset target temperatures is prestored in the database; if the unit load frequency variation exists, acquiring the unit load frequency variation, and calculating the product of the unit load frequency variation and the load variation to obtain the frequency adjustment quantity of the compressor; and if not, determining the frequency adjustment quantity of the compressor as the preset frequency variation quantity.
Further, after adjusting the frequency of the compressor according to the frequency adjustment amount, if any, the method further includes: detecting the ambient temperature, and judging whether the ambient temperature reaches a preset target temperature;
if so, updating the database; and if not, adjusting the frequency of the compressor until the ambient temperature reaches a preset target temperature, and updating the database.
Further, if achieved, updating the database includes: and accumulating the times of unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database.
Further, if not, updating the database includes: determining the total adjustment amount of the compressor frequency when the ambient temperature reaches a preset target temperature; and calculating unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total adjustment amount and the load variation, and updating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database.
Further, if not, adjusting the frequency of the compressor according to the frequency adjustment amount includes: and gradually increasing the frequency of the compressor according to the preset frequency variation until the ambient temperature reaches the preset target temperature.
Further, after adjusting the frequency of the compressor according to the frequency adjustment amount, the method further includes: determining the total adjustment amount of the compressor frequency when the ambient temperature reaches a preset target temperature; and calculating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total regulating quantity and the load variation, and storing the unit load frequency variation in a database.
According to another aspect of embodiments of the present invention, there is provided a load-based air conditioning control apparatus including: the detection module is used for detecting whether the load of the air conditioning action area changes or not; the determining module is used for determining the frequency adjustment quantity of the compressor according to the change of the load when the load changes; and the adjusting module is used for adjusting the frequency of the compressor according to the frequency adjusting quantity.
According to another aspect of embodiments of the present invention, there is provided an air conditioner including the load-based air conditioning control apparatus as described above.
According to still another aspect of the embodiments of the present invention, there is provided a computer apparatus including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the load-based air conditioning control method as described above when executing the program.
According to still another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the load-based air conditioning control method as described above when executed by a computer processor.
In the invention, a load-based air conditioner control scheme is provided, and the frequency of the compressor is adjusted by determining the frequency adjustment amount of the compressor according to the change of the load when the load changes by detecting whether the load of an air conditioner action area changes. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Drawings
Fig. 1 is an alternative flowchart of a load-based air conditioner control method according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of load variation according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of temperature change in the prior art according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a compressor frequency variation according to an embodiment of the present invention;
FIG. 5 is a schematic representation of the temperature variation in the present invention according to an embodiment of the present invention;
FIG. 6 is another alternative flowchart of a load-based air conditioning control method according to an embodiment of the present invention; and
fig. 7 is an alternative configuration block diagram of a load-based air conditioning control apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In preferred embodiment 1 of the present invention, a load-based air conditioner control method is provided, where the control method may be directly applied to various air conditioners, or may be applied to other devices having partial functions of an air conditioner, and when the control method is specifically implemented, the control method may be implemented by installing software, APP, or writing a program corresponding to a controller in the air conditioner or other devices. In particular, fig. 1 shows an alternative flow chart of the method, which, as shown in fig. 1, comprises the following steps S102-S106:
s102: detecting whether the load of an air conditioning action area changes or not;
s104: when the load changes, determining the frequency adjustment quantity of the compressor according to the change of the load;
s106: the frequency of the compressor is adjusted according to the frequency adjustment amount.
In the above embodiments, a load-based air conditioning control scheme is provided, in which whether a load of an air conditioning acting region changes is detected, and when the load changes, a frequency adjustment amount of a compressor is determined according to the change of the load, so as to adjust the frequency of the compressor. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Optionally, before detecting whether the load of the air conditioning acting area changes, the method further includes: before the air conditioner is started, detecting the ambient temperature of an air conditioner action area; after the air conditioner is started, the ambient temperature is adjusted until a preset target temperature is reached. This is the regulation scheme before the load changes, controlling the air conditioner to reach steady state at this stage.
In a preferred embodiment of the present invention, determining the frequency adjustment amount of the compressor according to the change of the load includes: detecting the current ambient temperature of an air conditioning action area, and acquiring a preset target temperature; wherein, the ambient temperature of the air conditioning action area changes along with the load change; at this time, the ambient temperature is not already the preset target temperature, and the ambient temperature suit is adjusted according to the following scheme. Calculating the variation of the load; and determining the frequency adjustment amount of the compressor according to the variable quantity of the load, the current environment temperature and the preset target temperature.
Wherein, calculating the variation of the load comprises: detecting the heat source area of the air conditioning action area and the total area of the air conditioning action area; and calculating the ratio of the heat source area to the total area, and obtaining the load variation according to the ratio.
After the air conditioner reaches the set temperature, the capacity output of the air conditioner is ideally equal to the load of the active area, and the compressor is operated at a stable frequency, so that the temperature of the active area of the air conditioner is maintained at the set temperature. After the air conditioner is installed, the environment of the action area is fixed, and the ambient temperature generally does not change, so when the air conditioner stably operates under the set temperature condition, the factors influencing the temperature change of the action area are mainly the number of energy consumption bodies (mainly people) in the action area. The amount of energy consuming objects affects the rate of consumption of air conditioning energy, which requires readjustment of the compressor frequency to match the rate of consumption of energy in the active area of the air conditioner. Therefore, it can be considered that the load of the air conditioner, that is, the number of energy consuming members, is in a positive correlation with the frequency after the air conditioner is stably operated.
The air conditioner is provided with the infrared array sensor. One of the functions is to detect the average temperature of the air-conditioning active area, i.e. the ambient temperature as described above. Another function is to detect the amount of energy consuming objects (typically human or animal in the area of air conditioning activity). Because people or animals have size, the quantity of the people or animals is difficult to directly detect, so the energy consumption quantity is represented by the area ratio of the heat source area to the air conditioning action area, and the area ratio of the heat source area to the air conditioning action area is easy to calculate by utilizing thermal image data acquired by the infrared array sensor and a software algorithm. The load of the air conditioner can already be calculated as described above. For example, the total number of the heat source pixels is 100 pixels on the thermal image, and the heat source pixels occupy 20 pixels, and at this time, the load of the air conditioner can be represented by 20, and the value of the load is 0 to 100. After calculating the ratio of the heat source area to the total area, the numerator of the ratio, or the ratio value, is multiplied by 100 to obtain the amount of change in the load.
Further, determining a frequency adjustment amount of the compressor according to the amount of change of the load, the current ambient temperature, and a preset target temperature includes:
inquiring whether unit load frequency variation corresponding to the current environment temperature and the preset target temperature exists in a database; the unit load frequency variation corresponding to different environmental temperatures and different preset target temperatures is prestored in the database; if we can count or calculate the compressor frequency variation caused by the variation of the unit load at all the ambient temperatures and all the set target temperatures. Then, when the air conditioner is stably operated at a certain set temperature under a certain ambient temperature, and the load suddenly changes, the amount of the change of the compressor frequency can be calculated by using the previous record. The air conditioner executes new compressor frequency immediately, maintains the temperature of an air conditioner action area at a set temperature, omits temperature feedback time, shortens readjustment time of the compressor frequency, and increases comfort of the air conditioner. Therefore, the database of the invention prestores the unit load frequency variation corresponding to different environmental temperatures and different preset target temperatures. As shown in table 1, T1 is the ambient temperature, P is the frequency variation of the unit load compressor, T2 is the set temperature, the lower triangle is the record during cooling, the upper triangle is the record during heating, and the unit load frequency variations corresponding to different ambient temperatures and different preset target temperatures can be obtained by looking up the following table.
TABLE 1
After inquiring whether unit load frequency variation corresponding to the current environment temperature and the preset target temperature exists in the database, if so, acquiring the unit load frequency variation, and calculating the product of the unit load frequency variation and the load variation to obtain the frequency adjustment quantity of the compressor; and if not, determining the frequency adjustment quantity of the compressor as the preset frequency variation quantity.
Most of the temperature control methods of the existing variable frequency air conditioners regulate the frequency of the compressor through a PID algorithm or a fuzzy control algorithm so as to regulate the temperature, the temperature regulation method generally selects the difference value between a reference temperature (the temperature of a temperature controller or the temperature of return air) and a set temperature so as to regulate the frequency of the compressor, the compressor frequency is increased when the difference value is larger, and the compressor frequency is decreased when the difference value is smaller. When the load of the air conditioner is changed, for example, the number of people increases, the temperature of the air conditioner working area starts to slowly rise, as shown in fig. 2, the load is 40% at the time of T1, and the load of the air conditioner is increased at the time of T1, for example, the load is increased to 60% when 6 people come in. In the conventional method, after a certain difference exists between the reference temperature and the set temperature, as shown in fig. 3, the temperature rises from T1 to T2 from time T1 to time T2, the frequency of the compressor starts to be readjusted, and the temperature stabilizes at T1 from time T2 to time T3. This stage consumes excessive time, increases the lag time for adjustment to the target temperature, and the temperature deviates from the set temperature, reducing the comfort of the air conditioner.
As described above, the present invention needs to count or calculate the frequency variation of the compressor caused by the variation of the unit energy consumption at all ambient temperatures and all set temperatures. When the air conditioner stably operates at a certain set temperature under a certain environmental temperature and the load of the air conditioner changes, the air conditioner firstly searches whether the record of the frequency variation of the unit load compressor is stored under the corresponding environmental temperature and the corresponding set temperature in a storage library. If there is a compressor, the compressor frequency is adjusted according to the product of the compressor frequency variation per unit load and the load variation. For example, after the load is increased by 10 at the ambient temperature of 25 ℃ and the set temperature of 22 ℃, the frequency variation of the unit load compressor is found to be 0.5 in the repository, and then the air conditioner compressor starts to increase the frequency by 10 × 0.5 — 5 Hz. As shown in FIG. 4, when the load increases at time T1, the frequency increases from P1 to P2. By adjusting the compressor frequency, as shown in FIG. 5, the temperature is still stable at T1 at time T1.
Since the installation environment of each air conditioner is complex and various, the parameter cannot be directly measured in a laboratory, and the parameter needs to be continuously updated and corrected by self after the air conditioner is installed. In another preferred embodiment of the present invention, after adjusting the frequency of the compressor according to the frequency adjustment amount, if present, the method further includes: detecting the ambient temperature, and judging whether the ambient temperature reaches a preset target temperature; if so, updating the database; and if not, adjusting the frequency of the compressor until the ambient temperature reaches a preset target temperature, and updating the database.
Wherein, if so, updating the database comprises: and accumulating the times of unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database. If not, updating the database includes: determining the total adjustment amount of the compressor frequency when the ambient temperature reaches a preset target temperature; and calculating unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total adjustment amount and the load variation, and updating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database.
If the temperature is still unstable, the compressor frequency is slightly adjusted until the temperature is maintained at the set temperature. If the frequency of the compressor is changed according to the stored record every time thereafter, the record of the frequency change amount of the unit load compressor needs to be updated, and the update method may be to update the record of the frequency change amount of the unit load compressor according to the number of times of the weight value, and if the frequency change amount of the unit load compressor is 2 and the frequency change amount of the unit load compressor is 3 before the previous record is 100 times, the newly stored record is (2 × 100)/(100+1) + (3 × 1)/(100+1) ≈ 2.001.
Further, if not, adjusting the frequency of the compressor according to the frequency adjustment amount includes: and gradually increasing the frequency of the compressor according to the preset frequency variation until the ambient temperature reaches the preset target temperature. A total adjustment of the compressor frequency at a preset target temperature; and calculating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total regulating quantity and the load variation, and storing the unit load frequency variation in a database.
If no record of the frequency change of the unit load compressor at the corresponding ambient temperature and the corresponding set temperature can be found in the storage library. The frequency of the compressor is adjusted step by step until the temperature of the air conditioning action area approaches the set temperature, for example, the frequency is increased by 3Hz step by step until the set temperature is maintained, and then the compressor variation per unit load under the current ambient temperature and the current set temperature is stored, wherein the compressor variation per unit load is the frequency of variation divided by the load variation.
When the air conditioner is operated for a sufficiently long time, the amount of frequency change of the compressor per unit load under each condition in the storage reservoir is supplemented and improved. When frequent people come and go in the air conditioning action area later, the compressor can flexibly change the frequency, and the comfort of the air conditioner is improved under the condition of maintaining a stable temperature in the action area.
In preferred embodiment 1 of the present invention, there is provided another load-based air conditioner control method, as shown in fig. 6, the method including:
starting;
checking or calculating the ambient temperature before the air conditioner is started and storing the ambient temperature;
starting an air conditioner to adjust the temperature to a set temperature and stabilize the temperature;
whether the load of the air conditioning action area changes or not;
if the load of the air conditioning action area changes, inquiring whether a unit load frequency change record under the current condition exists in a storage library;
if so, changing the compressor frequency according to the record;
detecting whether the temperature is stable;
if not, adjusting the frequency of the compressor until the temperature is stable;
if so, updating the record of the unit load frequency change under the current condition, and then ending;
if not, adjusting the frequency of the compressor;
detecting whether the temperature is stable;
if not, adjusting the frequency of the compressor until the temperature is stable;
if so, updating the unit load frequency change under the current environment temperature and the set temperature, and then finishing;
if the load of the air conditioning action area is not changed, ending;
in the above embodiments, a load-based air conditioning control scheme is provided, in which whether a load of an air conditioning acting region changes is detected, and when the load changes, a frequency adjustment amount of a compressor is determined according to the change of the load, so as to adjust the frequency of the compressor. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Example 2
Based on the load-based air conditioning control method provided in the foregoing embodiment 1, in a preferred embodiment 2 of the present invention, there is further provided a load-based air conditioning control apparatus, and specifically, fig. 7 shows an alternative structural block diagram of the apparatus, and as shown in fig. 7, the apparatus includes:
a detection module 702, configured to detect whether a load in an air conditioning action area changes;
a determining module 704, connected to the detecting module 602, for determining a frequency adjustment amount of the compressor according to the load change when the load changes;
an adjusting module 706 is connected to the determining module 604 for adjusting the frequency of the compressor according to the frequency adjustment amount.
In the above embodiments, a load-based air conditioning control scheme is provided, in which whether a load of an air conditioning acting region changes is detected, and when the load changes, a frequency adjustment amount of a compressor is determined according to the change of the load, so as to adjust the frequency of the compressor. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Optionally, the apparatus further comprises: the pre-adjusting module is used for detecting the ambient temperature of the air conditioning action area before detecting whether the load of the air conditioning action area changes or not and before the air conditioner is started, and adjusting the ambient temperature until the preset target temperature after the air conditioner is started.
In a preferred embodiment of the present invention, the determining module 704 includes: the acquiring unit is used for detecting the current ambient temperature of an air conditioning action area and acquiring a preset target temperature; wherein, the ambient temperature of the air conditioning action area changes along with the load change; a calculation unit for calculating a variation amount of the load; and the determining unit is used for determining the frequency adjustment amount of the compressor according to the variable quantity of the load, the current environment temperature and the preset target temperature.
Further, the calculation unit includes: the detection subunit is used for detecting the heat source area of the air conditioning action area and the total area of the air conditioning action area; and the calculating subunit is used for calculating the ratio of the heat source area to the total area and obtaining the load variation according to the ratio.
Further, the determination unit includes: the query subunit is used for querying whether unit load frequency variation corresponding to the current environment temperature and the preset target temperature exists in the database; the unit load frequency variation corresponding to different environmental temperatures and different preset target temperatures is prestored in the database; the first calculating subunit is used for acquiring the unit load frequency variation if the unit load frequency variation exists, and calculating the product of the unit load frequency variation and the load variation to obtain the frequency adjustment quantity of the compressor; and the second calculating subunit is used for determining the frequency adjustment quantity of the compressor as the preset frequency variation quantity if the frequency adjustment quantity does not exist.
Further, the apparatus further comprises: the updating module is used for detecting the ambient temperature and judging whether the ambient temperature reaches a preset target temperature or not after the frequency of the compressor is adjusted according to the frequency adjustment quantity; if so, updating the database; and if not, adjusting the frequency of the compressor until the ambient temperature reaches a preset target temperature, and updating the database. Wherein, if so, updating the database comprises: and accumulating the times of unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database. Further, if not, updating the database includes: determining the total adjustment amount of the compressor frequency when the ambient temperature reaches a preset target temperature; and calculating unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total adjustment amount and the load variation, and updating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database.
Further, the adjusting module 706 includes: and gradually increasing the frequency of the compressor according to the preset frequency variation until the ambient temperature reaches the preset target temperature.
Further, the apparatus further comprises: the storage module is used for determining the total adjustment amount of the frequency of the compressor when the ambient temperature reaches the preset target temperature after adjusting the frequency of the compressor according to the frequency adjustment amount; and calculating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total regulating quantity and the load variation, and storing the unit load frequency variation in a database.
With regard to the apparatus in the above embodiments, the specific manner in which each unit and each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Example 3
Based on the load-based air conditioning control device provided in the above embodiment 2, there is also provided in a preferred embodiment 3 of the present invention an air conditioner including the load-based air conditioning control device as described above.
In the above embodiments, a load-based air conditioning control scheme is provided, in which whether a load of an air conditioning acting region changes is detected, and when the load changes, a frequency adjustment amount of a compressor is determined according to the change of the load, so as to adjust the frequency of the compressor. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Example 4
Based on the load-based air conditioning control method provided in the above embodiment 1, there is also provided in a preferred embodiment 4 of the present invention a computer device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the load-based air conditioning control method as described above when executing the program.
In the above embodiments, a load-based air conditioning control scheme is provided, in which whether a load of an air conditioning acting region changes is detected, and when the load changes, a frequency adjustment amount of a compressor is determined according to the change of the load, so as to adjust the frequency of the compressor. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Example 5
Based on the load-based air conditioning control method provided in embodiment 1 above, there is also provided in a preferred embodiment 5 of the present invention a storage medium containing computer-executable instructions for performing the load-based air conditioning control method as described above when executed by a computer processor.
In the above embodiments, a load-based air conditioning control scheme is provided, in which whether a load of an air conditioning acting region changes is detected, and when the load changes, a frequency adjustment amount of a compressor is determined according to the change of the load, so as to adjust the frequency of the compressor. By the method, the frequency adjustment quantity of the compressor can be rapidly calculated, the frequency of the compressor can be rapidly adjusted, the time for the air conditioner to adjust the temperature again to be stable due to load change is shortened, the problem of temperature adjustment lag in the prior art is solved, the temperature in an air conditioning action area is kept stable for a long time, and the comfort of the air conditioner is improved.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (12)
1. A load-based air conditioner control method is characterized by comprising the following steps:
detecting whether the load of an air conditioning action area changes or not;
when the load changes, determining the frequency adjustment amount of the compressor according to the change of the load;
adjusting the frequency of the compressor according to the frequency adjustment amount;
wherein determining a frequency adjustment amount of the compressor according to the change of the load includes:
detecting the current ambient temperature of the air conditioning action area, and acquiring a preset target temperature; wherein the ambient temperature of the air conditioning action area changes with the change of the load; wherein, the load change refers to the change of the number of energy consumption bodies in the air conditioning action area;
calculating the variation of the load;
determining the frequency adjustment amount of the compressor according to the load variation, the current environment temperature and the preset target temperature; which comprises the following steps: inquiring whether unit load frequency variation corresponding to the current environment temperature and the preset target temperature exists in a database; the unit load frequency variation corresponding to different environmental temperatures and different preset target temperatures is prestored in the database; if the unit load frequency variation exists, acquiring the unit load frequency variation, and calculating the product of the unit load frequency variation and the load variation to obtain the frequency adjustment quantity of the compressor; and if the frequency adjustment quantity does not exist, determining the frequency adjustment quantity of the compressor as a preset frequency variation quantity.
2. The method of claim 1, before detecting whether the load of the air conditioning action area changes, further comprising:
before the air conditioner is started, detecting the ambient temperature of an air conditioning action area;
and after the air conditioner is started, adjusting the ambient temperature until a preset target temperature is reached.
3. The method of claim 1, wherein calculating the amount of change in the load comprises:
detecting the heat source area of the air conditioning action area and the total area of the air conditioning action area;
and calculating the ratio of the heat source area to the total area, and obtaining the variation of the load according to the ratio.
4. The method of claim 1, wherein after adjusting the frequency of the compressor based on the frequency adjustment, if any, further comprising:
detecting the ambient temperature, and judging whether the ambient temperature reaches the preset target temperature;
if so, updating the database;
and if not, adjusting the frequency of the compressor until the ambient temperature reaches the preset target temperature, and updating the database.
5. The method of claim 4, wherein updating the database, if achieved, comprises:
and accumulating the times of unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database.
6. The method of claim 4, wherein updating the database if not achieved comprises:
determining a total adjustment amount of the compressor frequency when the ambient temperature reaches the preset target temperature;
and calculating unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total adjustment amount and the load variation, and updating the unit load frequency variation corresponding to the current environment temperature and the preset target temperature stored in the database.
7. The method of claim 1, wherein adjusting the frequency of the compressor based on the frequency adjustment, if not present, comprises:
and gradually increasing the frequency of the compressor according to the preset frequency variation until the ambient temperature reaches the preset target temperature.
8. The method of claim 7, further comprising, after adjusting the frequency of the compressor according to the frequency adjustment amount:
determining a total adjustment amount of the compressor frequency when the ambient temperature reaches the preset target temperature;
and calculating unit load frequency variation corresponding to the current environment temperature and the preset target temperature according to the total adjustment amount and the load variation, and storing the unit load frequency variation in the database.
9. A load-based air conditioning control apparatus to which the load-based air conditioning control method according to any one of claims 1 to 8 is applied, characterized by comprising:
the detection module is used for detecting whether the load of the air conditioning action area changes or not;
the determining module is used for determining the frequency adjustment quantity of the compressor according to the change of the load when the load changes;
and the adjusting module is used for adjusting the frequency of the compressor according to the frequency adjusting amount.
10. An air conditioner characterized by comprising the load-based air conditioning control apparatus according to claim 9.
11. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the load-based air conditioning control method according to any one of claims 1 to 8 when executing the program.
12. A storage medium containing computer-executable instructions for performing the load-based air conditioning control method according to any one of claims 1 to 8 when executed by a computer processor.
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| CN110374852B (en) * | 2019-07-25 | 2020-11-24 | 中车青岛四方车辆研究所有限公司 | Frequency calculation method for variable-frequency air conditioner compressor |
| CN111578451B (en) * | 2020-04-26 | 2022-06-14 | 青岛海尔空调器有限总公司 | Method and device for controlling temperature rise and sterilization of air conditioner and air conditioner |
| CN114061061A (en) * | 2020-07-31 | 2022-02-18 | 广东美的制冷设备有限公司 | Air conditioning equipment and control method, control device and computer storage medium thereof |
| CN114517960B (en) * | 2020-11-19 | 2023-07-07 | 珠海格力电器股份有限公司 | Air conditioner control method, device, electronic equipment and storage medium |
| CN112633808A (en) * | 2020-12-28 | 2021-04-09 | 杭州拼便宜网络科技有限公司 | Temperature control method, device, equipment and storage medium for cold-chain logistics |
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| JPH0719527A (en) * | 1993-07-01 | 1995-01-20 | Nec Corp | Clean room air-conditioning system |
| KR20090005691U (en) * | 2007-12-06 | 2009-06-11 | 삼성전자주식회사 | Air conditioner |
| JP5312434B2 (en) * | 2010-11-29 | 2013-10-09 | 三菱電機株式会社 | Air conditioner |
| CN106440246A (en) * | 2016-10-26 | 2017-02-22 | 珠海格力电器股份有限公司 | Central air-conditioning system as well as control method and control device thereof |
| CN108302691B (en) * | 2018-01-11 | 2021-07-16 | 广东美的制冷设备有限公司 | Air conditioner control method and air conditioner |
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