CN117308310A

CN117308310A - Method and device for controlling refrigeration of air conditioner, air conditioner and storage medium

Info

Publication number: CN117308310A
Application number: CN202210695287.9A
Authority: CN
Inventors: 刘洋洋; 张青花; 李朋
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-12-29
Also published as: WO2023246531A1

Abstract

The application relates to the technical field of air conditioners and discloses a method and device for controlling refrigeration of an air conditioner, the air conditioner and a storage medium. The method comprises the following steps: acquiring a current indoor temperature value of an operating air conditioner in a refrigerating state, and acquiring a current first temperature difference value between the current indoor temperature value and a target temperature value; determining an initial operating frequency of the PID control of the compressor according to the current operating state of the compressor of the air conditioner and the current first temperature difference value under the condition that the current first temperature difference value is smaller than a first set value; and controlling the compressor to be in a PID control operation state taking the initial operation frequency as a starting point. Therefore, the accuracy of adjusting the indoor temperature of the air conditioner is improved, and the intelligent electricity and energy saving of the air conditioner is realized.

Description

Method and device for controlling refrigeration of air conditioner, air conditioner and storage medium

Technical Field

The present application relates to the field of air conditioning technology, for example, to a method and apparatus for controlling refrigeration of an air conditioner, and a storage medium.

Background

With the popularization of intelligent technology, intelligent air conditioners are indispensable devices in home life. When the air conditioner is in refrigeration operation, if the current indoor temperature value is smaller than or equal to the target temperature value, the compressor in the outdoor unit can stop operation, and if the current indoor temperature value exceeds the target temperature value and lasts for a certain time, the compressor can be restarted, so that the effect of saving and reducing emission is achieved. However, in some areas or countries in hot areas or in specific seasons, outdoor temperature values are often very high, when an air conditioner is stopped, room temperature rises immediately, so that a compressor needs to be restarted immediately, and after the room temperature value reaches a target temperature value, the compressor needs to be stopped, so that the reciprocating stopping and starting of the air conditioner is difficult to achieve the effects of power saving and energy saving, and moreover, the indoor temperature is caused to be neglected, so that the user experience is poor.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a method and a device for controlling refrigeration of an air conditioner, the air conditioner and a storage medium, so as to solve the technical problem that the power saving and energy saving effects of the air conditioner are to be improved.

In some embodiments, the method comprises:

acquiring a current indoor temperature value of an operating air conditioner in a refrigerating state, and acquiring a current first temperature difference value between the current indoor temperature value and a target temperature value;

determining an initial operating frequency of the PID control of the compressor according to the current operating state of the compressor of the air conditioner and the current first temperature difference value under the condition that the current first temperature difference value is smaller than a first set value;

and controlling the compressor to be in a PID control operation state taking the initial operation frequency as a starting point.

In some embodiments, the apparatus comprises:

the first acquisition module is configured to acquire a current indoor temperature value of an air conditioner running in a refrigerating state and obtain a current first temperature difference value between the current indoor temperature value and a target temperature value;

an initial determining module configured to determine an initial operating frequency of the PID control of the compressor according to a current operating state of the compressor of the air conditioner and the current first temperature difference value, in case the current first temperature difference value is smaller than a first set value;

and the first control module is configured to control the compressor to be in a PID control running state taking the initial running frequency as a starting point.

In some embodiments, the apparatus for air conditioning refrigeration control includes a processor and a memory storing program instructions, the processor being configured to perform the above-described method for air conditioning refrigeration control when executing the program instructions.

In some embodiments, the air conditioner comprises the device for controlling refrigeration of the air conditioner.

In some embodiments, the storage medium stores program instructions that, when executed, perform the above-described method for air conditioning refrigeration control

The method and the device for controlling the refrigeration of the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

when the indoor temperature value is close to the target temperature value set by the air conditioner, the initial operation frequency of PID control of the air conditioner compressor can be determined according to the operation state of the air conditioner compressor and the temperature difference between the indoor temperature value and the target temperature value, and the compressor is controlled to perform corresponding PID control operation, so that the accuracy of adjusting the indoor temperature of the air conditioner can be improved, and the intelligent power saving and energy saving of the air conditioner can be realized under the condition of no shutdown.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic flow chart of a method for controlling refrigeration of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic flow chart of a method for controlling refrigeration of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic flow chart of a method for controlling refrigeration of an air conditioner according to an embodiment of the disclosure;

fig. 4 is a schematic structural diagram of a refrigeration control device for an air conditioner according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a refrigeration control device for an air conditioner according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a refrigeration control device for an air conditioner according to an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

In the embodiment of the disclosure, when the air conditioner is in refrigeration operation and the indoor temperature value is close to the target temperature value set by the air conditioner, the initial operation frequency of PID control of the air conditioner compressor can be determined according to the operation state of the air conditioner compressor and the temperature difference between the indoor temperature value and the target temperature value, and the compressor is controlled to perform corresponding PID control operation, so that the temperature stop of the compressor cannot be caused, the accuracy of adjusting the indoor temperature of the air conditioner is improved, and resources and electricity are saved through PID control.

Fig. 1 is a schematic flow chart of a method for controlling refrigeration of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 1, the air conditioner cooling control process includes:

step 101: and acquiring a current indoor temperature value of the running air conditioner in a refrigerating state, and acquiring a current first temperature difference value between the current indoor temperature value and a target temperature value.

And in the running process of the air conditioner, indoor temperature values are acquired regularly or in real time, the indoor temperature value acquired at the current moment is the current indoor temperature value Tr, and the air conditioner is controlled according to the current first temperature difference Pn between the current indoor temperature value Tr and the target temperature value Ts. In the embodiment of the disclosure, the air conditioner is operated in a refrigeration state, a current indoor temperature value needs to be obtained, and a current first temperature difference value between the current indoor temperature value and a target temperature value is obtained.

Step 102: and under the condition that the current first temperature difference value is smaller than a first set value, determining the initial operating frequency of the proportional integral derivative PID control of the compressor according to the current operating state of the compressor of the air conditioner and the current first temperature difference value.

When the current first temperature difference value is smaller than the first set value, the current indoor temperature value is relatively close to the target temperature value, and at the moment, in order to save energy and electricity, proportional integral derivative PID control can be performed on the compressor of the air conditioner, however, the current running states of different compressors and the different first temperature difference values, the corresponding PID control initial running frequencies are different, and therefore the probability of temperature reaching and shutdown of the compressor of the air conditioner can be reduced.

In an embodiment of the present disclosure, the operation state of the air conditioner compressor may include: a frequency-limited operation state in which the operation is performed at a set maximum frequency, a frequency-limited operation state in which the operation is performed at a set minimum frequency, and a PID control operation state.

In some embodiments, determining the initial operating frequency of the compressor PID control comprises: under the condition that the current running state is a frequency-releasing running state running at the set maximum frequency, determining the set maximum frequency as an initial running frequency; and under the condition that the current running state is not the frequency-releasing running state, if the current first temperature difference value is smaller than the first set value and larger than or equal to the second set value, determining the first set frequency as the initial running frequency, wherein the first set frequency is smaller than the set maximum frequency.

Table 1 is a correspondence relationship between a compressor operating state, a first temperature difference value, and an initial operating frequency of PID control provided in an embodiment of the present disclosure.

In table 1, the first set value is 3 ℃, and the first set frequency is 75% of the set maximum frequency, so if the current operation state of the compressor of the air conditioner is the frequency-releasing operation state and the current first temperature difference Pn is 2 ℃, the set maximum frequency can be determined as the initial operation frequency according to table 1. If the current operation state of the compressor of the air conditioner is the PID control operation state and Pn is 2 deg.c, it is determined that 75% of the set maximum frequency is the initial operation frequency according to table 1.

TABLE 1

Of course, the first set value may be 2 ℃,3 ℃, or 3.5 ℃ or the like, and the first set frequency may be 60%,70%, or 80% of the maximum frequency, which may be determined according to the geographical area in which the air conditioner is located, the season, the compressor performance, or the like. Also, the correspondence relationship between the compressor operation state, the first temperature difference value, and the initial operation frequency of the PID control may not be limited to that shown in table 1, for example: if the current running state of the compressor of the air conditioner is PID control running state, determining 85% of the set maximum frequency as initial running frequency if the current first temperature difference Pn is within the range of [2.5 ℃ and 3.5 ℃; if the current first temperature difference Pn is within the range of [1.5 ℃,2.5 ℃), 70% of the set maximum frequency is determined as the initial operating frequency. Specifically, this is not the case. That is, the initial operating frequency, which is not determined for the frequency-releasing operating state by the current operating state, is smaller than the initial operating frequency, which is determined for the frequency-releasing operating state by the current operating state.

Step 103: the compressor is controlled to be in a PID control operation state starting from an initial operation frequency.

After the initial operation frequency of the PID control is determined, no matter what operation state the air conditioner compressor is in, it is necessary to switch to the operation state of the PID control starting from the initial operation frequency. Namely, the air conditioner compressor performs PID control operation with the determined initial operation frequency as a starting point.

For example: the current running state is a frequency-releasing running state, and the air conditioner compressor needs to be switched to a PID control running state taking the set maximum frequency as a starting point. If the current running state is the PID control running state, the air conditioner compressor is controlled to take the first set frequency as a starting point to carry out PID control running again.

Therefore, in this embodiment, when the indoor temperature value approaches the target temperature value set by the air conditioner, the initial operation frequency of the air conditioner compressor for PID control can be determined according to the operation state of the air conditioner compressor and the temperature difference between the indoor temperature value and the target temperature value, and the compressor is controlled to be in the PID control operation state with the initial operation frequency as the starting point, so that the probability of temperature-up shutdown of the compressor is reduced, the accuracy of adjusting the indoor temperature of the air conditioner is improved, and electricity and resources can be saved through PID control.

In some embodiments, when the current operation state of the air-conditioning compressor is not the frequency-release operation state, the current operation state may be a frequency-limited operation state or a PID control operation state, and at this time, if the current first temperature difference is smaller than the second set value, the compressor may be controlled to operate at the set minimum frequency, that is, if the current operation state is not the frequency-release operation state, if the current first temperature difference is smaller than the second set value, the compressor is controlled to operate at the frequency-limited operation state at the set minimum frequency. Therefore, the air conditioner can be ensured not to stop, the probability of sudden temperature rise and sudden temperature fall is reduced, and the accuracy of indoor temperature regulation of the air conditioner and user experience are improved.

Of course, when the current first temperature difference is greater than or equal to the first set value, it indicates that the indoor temperature value is far from the target temperature value, and rapid cooling is required, so that the compressor can be controlled to operate at the maximum set frequency, that is, in the case that the current first temperature difference is greater than or equal to the first set value, the compressor is controlled to be in a frequency-releasing operation state of operating at the maximum set frequency, so that the temperature can be rapidly reduced to the target temperature accessory, and the user feels more comfortable.

In the embodiment of the disclosure, the running state of the air conditioner compressor can be automatically switched, and not only can be switched from the frequency-releasing running state to the PID control running state or the frequency-limiting running state, but also can be switched from the PID control running state to the frequency-limiting running state, the frequency-releasing running state, the PID control running state reenter, and the like. In some embodiments, after step 103, the air conditioner compressor is in a PID control operating state, at which time, the operating state of the air conditioner compressor may be switched according to the current coil temperature value, which may include: acquiring a current coil temperature value corresponding to the air conditioner, and acquiring a second temperature difference value between the current coil temperature value and a current indoor temperature value; and controlling the compressor to be in a frequency-limited operation state in which the compressor is stably operated at a set minimum frequency under the condition that the second temperature difference value is less than or equal to a third set value.

When the second temperature difference between the current coil temperature value Tp and the current indoor temperature value Tr is smaller than a third set value, the coil temperature is indicated to be solved, and at the moment, the indoor temperature is maintained while the compressor is ensured to be in a power-saving state, so that the compressor can be controlled to stably operate at a set minimum frequency, namely, the air conditioner compressor is in a frequency-limited operation state in which the air conditioner compressor stably operates at the set minimum frequency. Wherein the third set point may be equal to or different from the second set point.

In some embodiments, when the second temperature difference is greater than the third set value, the current indoor temperature value of the air conditioner is obtained, and PID control operation determination of the compressor is performed, that is, if the second temperature difference is greater than the third set value, the step 101 may be returned to perform PID control operation determination, so that automatic switching of the working state of the air conditioner compressor in the air conditioner refrigeration operation process is realized, and the intelligence of air conditioner control is improved.

The following integrates the operation flow into a specific embodiment, and illustrates the refrigeration control process for the air conditioner provided by the embodiment of the invention.

In an embodiment of the disclosure, the correspondence relationship shown in table 1 is stored in the air conditioner, where the first set value is 3 ℃, and the second set value and the third set value are both 1 ℃.

Fig. 2 is a schematic flow chart of a method for controlling air conditioning refrigeration according to an embodiment of the present disclosure. Referring to fig. 2, the air conditioning refrigeration control process includes:

step 201: and acquiring a current indoor temperature value of the running air conditioner in a refrigerating state, and obtaining a current first temperature difference value Pn between the current indoor temperature value and a target temperature value.

Step 202: judging that Pn is not less than 3? If yes, go to step 203, otherwise, go to step 204.

Step 203: the compressor is controlled to be in a frequency-release operation state in which the compressor is operated at a set maximum frequency, and the process returns to step 201.

Step 204: judging whether the current operation state of the compressor is the frequency-releasing operation state? If yes, go to step 205, otherwise, go to step 206.

Step 205: according to table 1, the set maximum frequency is determined as the initial operation frequency of the PID control, and the process proceeds to step 209.

Step 206: judging that Pn is more than or equal to 1 ℃ and less than 3? If yes, go to step 207, otherwise, go to step 208.

Step 207: according to table 1, 75% of the set maximum frequency is determined as the initial operating frequency of the PID control, and step 209 is loaded.

Step 208: the compressor is controlled to be in a frequency-limited operation state in which the compressor is operated at a set minimum frequency. Returning to step 201.

Step 209: the compressor is controlled to be in a PID control operation state starting from an initial operation frequency.

Step 210: and acquiring a current coil temperature value corresponding to the air conditioner, and acquiring a second temperature difference Rn between the current coil temperature value and the current indoor temperature value.

Step 211: judging whether Rn is equal to or less than 1 ℃ is true? If yes, go to step 208, otherwise, return to step 201.

Therefore, in this embodiment, when the indoor temperature value is far from the target temperature value during the air conditioner refrigeration operation, the air conditioner compressor can be controlled to be in a frequency-releasing operation state in which the air conditioner compressor operates at the set maximum frequency, so that the temperature can be quickly reduced, and when the indoor temperature value is close to the target temperature value set by the air conditioner, the initial operation frequency of the air conditioner compressor for performing the PID control can be determined according to the operation state of the air conditioner compressor and the temperature difference between the indoor temperature value and the target temperature value, and the compressor is controlled to perform the corresponding PID control operation, so that the accuracy of adjusting the indoor temperature of the air conditioner is improved, and the energy and resources can be saved through the PID control. When the indoor temperature value is very close to the target temperature value set by the air conditioner, the air conditioner compressor can be controlled to be in a frequency-limiting running state running at a set minimum frequency, so that the temperature-reaching stop of the compressor is avoided, the probability of repeated stopping and starting of the compressor is reduced, the effects of saving electricity and energy are achieved, and the accuracy of regulating the indoor temperature of the air conditioner is further improved.

In an embodiment of the present disclosure, the correspondence relationship shown in table 2 is stored in the air conditioner, and the operation state of the compressor is switched only according to the current first temperature difference value. Wherein the first set value is 4 ℃, the second set value is 1.5 ℃, and the third set value is 1 ℃.

TABLE 2

Fig. 3 is a schematic flow chart of a method for controlling air conditioning refrigeration according to an embodiment of the present disclosure. Referring to fig. 3, the air conditioner cooling control process includes:

step 301: and acquiring a current indoor temperature value of the running air conditioner in a refrigerating state, and obtaining a current first temperature difference value Pn between the current indoor temperature value and a target temperature value.

Step 302: judging that Pn is not less than 4? If yes, go to step 303, otherwise, go to step 304.

Step 303: the compressor is controlled to be in a frequency-release operation state in which the compressor is operated at a set maximum frequency, and the process returns to step 301.

Step 304: judging whether the current operation state of the compressor is the frequency-releasing operation state? If yes, go to step 305, otherwise, go to step 306.

Step 305: according to table 2, the set maximum frequency is determined as the initial operation frequency of the PID control, and the process proceeds to step 311.

Step 306: judging that Pn is more than or equal to 2 ℃ and less than 4? If yes, go to step 307, otherwise, go to step 308.

Step 307: according to table 2, 80% of the set maximum frequency is determined as the initial operation frequency of the PID control, and the process proceeds to step 311.

Step 308: judging that Pn is more than or equal to 1.5 ℃ and less than or equal to 2? If yes, go to step 309, otherwise, go to step 310.

Step 309: according to table 2, 65% of the set maximum frequency is determined as the initial operation frequency of the PID control, and the process proceeds to step 311.

Step 310: the compressor is controlled to be in a frequency-limited operation state in which the compressor is operated at a set minimum frequency. Returning to step 301.

Step 311: the compressor is controlled to be in a PID control operation state starting from an initial operation frequency. Returning to step 301.

Therefore, in this embodiment, when the air conditioner is in refrigeration operation, the operation state of the air conditioner compressor is switched and controlled according to the current first temperature difference between the current indoor temperature value and the target temperature value, so that the intelligence of air conditioner control is improved, the accuracy of air conditioner indoor temperature regulation is improved through PID control, and electricity and resources are saved.

According to the above-described process for air-conditioning refrigeration control, an apparatus for air-conditioning refrigeration control can be constructed.

Fig. 4 is a schematic structural diagram of a refrigeration control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 4, the refrigeration control apparatus for an air conditioner includes: a first acquisition module 410, an initial determination module 420, and a first control module 430.

The first obtaining module 410 is configured to obtain a current indoor temperature value of the air conditioner operating in a cooling state, and obtain a current first temperature difference value between the current indoor temperature value and a target temperature value.

The initial determining module 420 is configured to determine an initial operating frequency of the PID control of the compressor according to a current operating state of the compressor of the air conditioner and the current first temperature difference value, in case that the current first temperature difference value is smaller than a first set value.

The first control module 430 is configured to control the compressor to be in a PID control operating state starting from an initial operating frequency.

In some embodiments, the initial determining module 420 is specifically configured to determine the set maximum frequency as the initial operating frequency in the case that the current operating state is a frequency-release operating state operating at the set maximum frequency; and under the condition that the current running state is not the frequency-releasing running state, if the current first temperature difference value is smaller than the first set value and larger than or equal to the second set value, determining the first set frequency as the initial running frequency, wherein the first set frequency is smaller than the set maximum frequency.

In some embodiments, further comprising: and the second control module is configured to control the compressor to be in a frequency limiting operation state of running at a set minimum frequency if the current first temperature difference value is smaller than a second set value under the condition that the current running state is not the frequency releasing running state.

In some embodiments, further comprising: and the third control module is configured to control the compressor to be in a frequency-releasing running state running at a set maximum frequency under the condition that the current first temperature difference is larger than or equal to a first set value.

In some embodiments, further comprising: the fourth control module is configured to acquire a current coil temperature value corresponding to the air conditioner and obtain a second temperature difference value between the current coil temperature value and a current indoor temperature value; and controlling the compressor to be in a frequency-limited operation state in which the compressor is stably operated at a set minimum frequency under the condition that the second temperature difference value is less than or equal to a third set value.

In some embodiments, the fourth control module is further configured to obtain a current indoor temperature value of the air conditioner and perform PID control operation determination of the compressor if the second temperature difference value is greater than the third set value.

The air conditioning refrigeration control process for the air conditioning refrigeration control apparatus is further described below with reference to the embodiments.

In this embodiment, the correspondence relationship shown in table 1 is stored in the air conditioner, where the first set value is 3 ℃, and the second set value and the third set value are both 1 ℃.

Fig. 5 is a schematic structural diagram of a refrigeration control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 5, the refrigeration control apparatus for an air conditioner includes: the first acquisition module 410, the initial determination module 420, the first control module 430, the second control module 440, the third control module 450, and the fourth control module 460.

During the air conditioning cooling operation, the first obtaining module 410 obtains a current indoor temperature value, and obtains a current first temperature difference Pn between the current indoor temperature value and the target temperature value. When Pn is greater than or equal to 3 ℃, the third control module 450 can control the compressor to be in a frequency-releasing operation state of running at a set maximum frequency.

And when the current operation state of the compressor is the frequency-release operation state, pn <3 ℃, the initial determination module 420 determines the set maximum frequency as the initial operation frequency of the PID control according to table 1, so that the first control module 430 can control the compressor to be in the PID control operation state starting from the set maximum frequency.

If the current operation state of the compressor is not the frequency release operation state, i.e., pn <3 ℃, the initial determination module 420 determines 75% of the set maximum frequency as the initial operation frequency of the PID control according to table 1, and the first control module 430 may control the compressor to be in the PID control operation state starting from 75% of the set maximum frequency.

If the current operation state of the compressor is not the frequency-limited operation state, pn <1 ℃, the second control module 440 may control the compressor to be in the frequency-limited operation state for operating at the set minimum frequency.

After the compressor is in the PID control operation state, the current coil temperature value corresponding to the air conditioner may be obtained, and a second temperature difference Rn between the current coil temperature value and the current indoor temperature value may be obtained, and when Rn is less than or equal to 1 ℃, the fourth control module 460 may call the second control module 440, that is, control the compressor to be in the frequency-limited operation state in which the compressor is operated at the set minimum frequency. And Rn > 1deg.C, the fourth control module 460 may call the first acquisition module 410 to make a PID control operation determination of the compressor again.

Therefore, in this embodiment, when the indoor temperature value is far from the target temperature value during the air-conditioning refrigeration operation, the device for controlling the air-conditioning refrigeration can control the air-conditioning compressor to be in a frequency-releasing operation state in which the air-conditioning compressor is operated at the set maximum frequency, so that the temperature can be quickly reduced, and when the indoor temperature value is close to the target temperature value set by the air-conditioning, the device for controlling the air-conditioning refrigeration can determine the initial operation frequency of the air-conditioning compressor for performing the PID control according to the operation state of the air-conditioning compressor and the temperature difference between the indoor temperature value and the target temperature value, and control the compressor to perform the corresponding PID control operation, so that the accuracy of adjusting the indoor temperature of the air-conditioning compressor is improved, and electricity and resources can be saved through the PID control. When the indoor temperature value is very close to the target temperature value set by the air conditioner, the device for controlling the refrigeration of the air conditioner can control the air conditioner compressor to be in a frequency-limiting running state running at a set minimum frequency, so that the temperature-reaching stop of the compressor is avoided, the probability of repeated stopping and starting of the compressor is reduced, the effects of saving electricity and energy are achieved, and the accuracy of regulating the indoor temperature of the air conditioner is further improved.

The embodiment of the disclosure provides a device for controlling refrigeration of an air conditioner, the structure of which is shown in fig. 6, comprising:

a processor (processor) 1000 and a memory (memory) 1001, and may also include a communication interface (Communication Interface) 1002 and a bus 1003. The processor 1000, the communication interface 1002, and the memory 1001 may communicate with each other via the bus 1003. The communication interface 1002 may be used for information transfer. The processor 1000 may call logic instructions in the memory 1001 to perform the method for air conditioning refrigeration control of the above-described embodiment.

Further, the logic instructions in the memory 1001 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.

The memory 1001 is used as a computer readable storage medium for storing a software program and a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 1000 performs functional applications and data processing by executing program instructions/modules stored in the memory 1001, i.e., implements the method for air conditioning cooling control in the above-described method embodiment.

The memory 1001 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 1001 may include a high-speed random access memory, and may also include a nonvolatile memory.

The embodiment of the disclosure provides a refrigeration control device for an air conditioner, comprising: the system includes a processor and a memory storing program instructions, the processor configured to execute a method for air conditioning refrigeration control when executing the program instructions.

The embodiment of the disclosure provides an air conditioner, which comprises the refrigeration control device for the air conditioner.

The disclosed embodiments provide a storage medium storing program instructions that, when executed, perform a method for air conditioning refrigeration control as described above.

The disclosed embodiments provide a computer program product comprising a computer program stored on a storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for air-conditioning refrigeration control.

The storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments of the present disclosure encompasses the full ambit of the claims, as well as all available equivalents of the claims. When used in this application, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without changing the meaning of the description, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. A method for controlling cooling of an air conditioner, comprising:

2. The method of claim 1, wherein said determining an initial operating frequency of said compressor PID control comprises:

determining the set maximum frequency as the initial operating frequency under the condition that the current operating state is a frequency-releasing operating state operated at the set maximum frequency;

and under the condition that the current running state is not the frequency-releasing running state, if the current first temperature difference value is smaller than the first set value and larger than or equal to a second set value, determining a first set frequency as an initial running frequency, wherein the first set frequency is smaller than the set maximum frequency.

3. The method as recited in claim 2, further comprising:

and under the condition that the current running state is not the frequency-releasing running state, if the current first temperature difference value is smaller than the second set value, controlling the compressor to be in a frequency-limiting running state running at a set minimum frequency.

4. The method as recited in claim 1, further comprising:

and controlling the compressor to be in a frequency-releasing operation state of operating at a set maximum frequency under the condition that the current first temperature difference is greater than or equal to the first set value.

5. The method of any one of claims 1-4, wherein said controlling said compressor after said PID control operating state starting at said initial operating frequency further comprises:

acquiring a current coil temperature value corresponding to the air conditioner, and acquiring a second temperature difference value between the current coil temperature value and the current indoor temperature value;

and controlling the compressor to be in a frequency-limited operation state in which the compressor stably operates at a set minimum frequency under the condition that the second temperature difference value is smaller than or equal to a third set value.

6. The method as recited in claim 5, further comprising:

and under the condition that the second temperature difference value is larger than the third set value, acquiring the current indoor temperature value of the air conditioner, and judging the PID control operation of the compressor.

7. An apparatus for controlling cooling of an air conditioner, comprising:

8. An apparatus for air conditioning refrigeration control comprising a processor and a memory storing program instructions, wherein the processor is configured, when executing the program instructions, to perform the method for air conditioning refrigeration control of any of claims 1 to 6.

9. An air conditioner, comprising: an apparatus for controlling cooling of an air conditioner according to claim 7 or 8.

10. A storage medium storing program instructions which, when executed, perform the method for air conditioning refrigeration control of any one of claims 1 to 6.