CN111023434A - Operation control method and system of air conditioner, air conditioner and storage medium - Google Patents
Operation control method and system of air conditioner, air conditioner and storage medium Download PDFInfo
- Publication number
- CN111023434A CN111023434A CN201911422370.3A CN201911422370A CN111023434A CN 111023434 A CN111023434 A CN 111023434A CN 201911422370 A CN201911422370 A CN 201911422370A CN 111023434 A CN111023434 A CN 111023434A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- preset
- low
- temperature
- indoor environment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an operation control method and system of an air conditioner, the air conditioner and a storage medium, wherein the operation control method of the air conditioner comprises the following steps: acquiring a set temperature of an air conditioner and an indoor environment temperature; when the difference value between the set temperature and the indoor environment temperature is smaller than or equal to a preset temperature difference, judging whether the running state of the air conditioner accords with a preset running state; and if so, generating a control instruction for enabling the air conditioner to enter a preset low operation frequency mode for operation. The invention has the beneficial effects that: when the indoor environment temperature is close to the set temperature of a user, the operation mode of the air conditioner is adjusted to the preset low operation frequency mode, so that the operation frequency of the compressor is reduced, energy conservation and emission reduction are achieved, the air conditioner is not stopped, the indoor environment temperature can be maintained to a certain degree, the indoor environment temperature is prevented from being increased or reduced too fast, and the comfort of the indoor environment is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an operation control method and system of an air conditioner, the air conditioner and a storage medium.
Background
At present, the air conditioner can adjust the temperature according to the set temperature that the user actually set for in the operation process, in order to carry out the control of temperature, when indoor ambient temperature control is near the set temperature, standby operation can be carried out under the normal condition, so that the air conditioner stops operating, treat that set temperature and ambient temperature differ to a definite value after, restart the air conditioner again, but this kind of control mode can lead to the travelling comfort not enough, and if continuously make the air conditioner with higher frequency or stronger heating refrigeration running state continuously regulate and control the temperature and can lead to energy-inadequately.
Disclosure of Invention
The invention solves the problem of how to keep the comfort of the indoor environment when the air conditioner operates and has the energy-saving effect to a certain extent.
In order to solve the above problems, the present invention provides an operation control method of an air conditioner, comprising:
acquiring a set temperature of an air conditioner and an indoor environment temperature;
when the difference value between the set temperature and the indoor environment temperature is smaller than or equal to a preset temperature difference, judging whether the running state of the air conditioner accords with a preset running state;
and if so, generating a control instruction for enabling the air conditioner to enter a preset low operation frequency mode for operation.
In the technical scheme, when the indoor environment temperature is close to the temperature set by the user, the operation mode of the air conditioner is adjusted to the preset low operation frequency mode to reduce the operation frequency of the compressor, so that the energy conservation and emission reduction are realized, the air conditioner is not stopped, the indoor environment temperature can be maintained to a certain degree, the indoor environment temperature is prevented from being increased or reduced too fast, and the comfort of the indoor environment is improved.
Further, the determining whether the operation state of the air conditioner conforms to a preset operation state includes:
when the air conditioner operates in a refrigerating mode, acquiring the exhaust superheat degree and the return superheat degree of the air conditioner, and acquiring the low-pressure change rate of the air conditioner;
and when the exhaust superheat degree is less than or equal to a preset exhaust superheat degree, the return gas superheat degree is less than or equal to a preset return gas superheat degree, and the low-pressure change rate meets a preset standard, judging that the running state of the air conditioner meets a preset running state.
In the technical scheme, whether the running state of the air conditioner accords with the preset running state or not can be judged more reasonably through the exhaust superheat degree, the return superheat degree and the low-pressure change rate, namely the load condition of the air conditioner is judged, when the load is small, the air conditioner is proved to be relatively stable in indoor refrigeration, the air conditioner can run in a preset low-running-frequency mode to save energy, meanwhile, the air conditioner runs in a mode of keeping the current indoor environment temperature, and when the load is high, the air conditioner is proved to have large burden on indoor refrigeration.
Further, the acquiring a low pressure change rate of the air conditioner includes:
acquiring the running low pressure of the air conditioner when the air conditioner runs to a preset time, and acquiring the real-time running low pressure of the air conditioner after the preset time in real time;
calculating the ratio of the real-time operation low pressure to the operation low pressure, and enabling the ratio to be the low pressure change rate;
determining that the low pressure rate of change meets a predetermined criterion includes:
and when the low-pressure change rate is greater than or equal to a preset low-pressure change rate in a first preset time period after the preset moment, judging that the low-pressure change rate of the air conditioner meets the preset standard.
In this technical scheme, whether the low pressure change rate of judging the air conditioner accords with preset standard specifically includes, acquires the operation low pressure when the air conditioner moves to preset moment, moves to relatively stable back at the air conditioner, acquires the operation low pressure to prevent that the air conditioner from obtaining the inaccuracy that the operation low pressure leads to follow-up judgement when the operation is unstable, works as the low pressure change rate is in all be greater than or equal to the low pressure change rate of presetting in the first preset time quantum after the preset moment, then indicates that the running state of air conditioner is relatively stable this moment, and the load is less, can get into this moment and predetermine low running frequency mode and move this moment, with more reasonable controlling the air conditioner.
Further, still include:
acquiring high pressure and low pressure of the air conditioner when the air conditioner is in the preset low operation frequency mode;
and when the pressure difference between the high pressure and the low pressure is less than or equal to a preset pressure difference, generating a control instruction for reducing the valve step of the expansion valve.
In the technical scheme, when the pressure difference between the high pressure and the low pressure is smaller than or equal to the preset pressure difference, the pressure difference of the air conditioner is smaller at the moment, and the impact sound may be generated.
Further, the generating control instructions for decreasing the valve step of the expansion valve comprises:
and generating a control instruction for reducing the valve step of the expansion valve so as to reduce the current valve step of the expansion valve by one step every a second preset time period.
In this technical scheme, regard as the time frequency of regulation with the second time quantum of predetermineeing, the valve step regulation of expansion valve is carried out according to the regulation mode in every step, when high pressure and low pressure differential pressure is less than or equal to predetermineeing pressure differential, the second time quantum of predetermineeing at every interval reduces one step current valve step, and so, can rationally control the expansion valve, in this embodiment, prevent that the regulation and control effect to the noise that the regulating frequency is lower to lead to unobvious, or lead to influencing the keeping of air conditioner to indoor ambient temperature because of great regulating frequency, and influence the travelling comfort.
Further, still include:
and when the air conditioner is in the preset low operating frequency mode, and the difference value between the set temperature and the indoor environment temperature is greater than the preset temperature difference or a preset control instruction sent by control equipment is received, generating a control instruction for exiting the preset low operating frequency mode.
In the technical scheme, when the air conditioner is in a preset low operation frequency mode, if the difference value between the acquired set temperature and the indoor environment temperature is larger than the preset temperature difference, the current indoor environment temperature is larger than the set temperature, at the moment, the comfort of the indoor environment is possibly reduced, the comfort of the indoor environment cannot be ensured in the current preset low operation frequency mode, and based on the situation, a control instruction for exiting the preset low operation frequency mode is generated to exit the operation mode, so that the air conditioner returns to the operation with higher operation frequency or higher power, the heating and cooling effects of the air conditioner are improved, the indoor environment temperature is reasonably maintained, and the comfort is improved; when a preset control instruction sent by the control equipment is received, a control instruction for exiting the preset low operating frequency mode can be generated in the same way, so that the air conditioner can be reasonably controlled according to the actual control of a user.
Further, before the step of generating the control instruction for making the air conditioner enter the preset low operation frequency mode, the method further includes:
when the difference value between the set temperature and the indoor environment temperature is greater than the preset temperature difference or the running state of the air conditioner does not accord with the preset running state, generating a control instruction for enabling the air conditioner to enter a normal frequency control mode to run;
wherein the normal frequency control mode includes: and controlling the running frequency of the air conditioner according to the target frequency of the air conditioner and the indoor environment temperature.
In the technical scheme, when the difference value between the set temperature of the air conditioner and the indoor environment temperature is greater than the preset temperature difference, the difference value indicates that the difference value between the current indoor environment temperature and the temperature set by a user is still larger, and at the moment, the air conditioner needs to operate with larger power or the operating frequency of the compressor so as to enable the air conditioner to have stronger heating or cooling effect, therefore, the air conditioner is not suitable for being adjusted to enter the preset low operating frequency mode to operate so as to prevent the poor adjusting effect on the indoor environment temperature, or when the difference value between the set temperature and the indoor environment temperature is less than or equal to the preset temperature difference but the operating state of the air conditioner does not conform to the preset operating state, the load of the air conditioner is relatively larger, the air conditioner is also not suitable for entering the preset low operating frequency mode to operate so as to prevent the air conditioner from entering the preset low operating frequency mode by mistake, so as to avoid the influence on the compressor of the air conditioner.
In addition, the present invention provides an operation control system of an air conditioner, comprising:
an acquisition unit for acquiring a set temperature of the air conditioner and an indoor ambient temperature;
the judging unit is used for judging whether the running state of the air conditioner accords with a preset running state or not when the difference value between the set temperature and the indoor environment temperature is smaller than or equal to a preset temperature difference;
and the control unit is used for generating a control instruction for enabling the air conditioner to enter a preset low operation frequency mode to operate when the operation state of the air conditioner accords with a preset operation state.
Compared with the prior art, the operation control system of the air conditioner and the operation control method of the air conditioner have the same advantages, and are not described again.
In addition, the present invention provides an air conditioner, comprising a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the operation control method of the air conditioner.
Compared with the prior art, the air conditioner and the operation control method of the air conditioner have the same advantages, and are not described again.
In addition, the present invention provides a computer-readable storage medium storing a computer program, which is read by a processor and executed, to implement the operation control method of the air conditioner.
The advantages of the computer readable storage medium and the operation control method of the air conditioner are the same as those of the prior art, and are not described herein again.
Drawings
Fig. 1 is a flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a control logic block diagram of an operation control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a block diagram illustrating an operation control system of an air conditioner according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Referring to fig. 1, the present invention provides an operation control method of an air conditioner, including the steps of:
s1, acquiring the set temperature and the indoor environment temperature of the air conditioner;
s2, when the difference between the set temperature and the indoor environment temperature is less than or equal to a preset temperature difference, judging whether the running state of the air conditioner accords with a preset running state;
and S3, if yes, generating a control command for enabling the air conditioner to enter a preset low operation frequency mode for operation.
In the related art, the air conditioner can adjust the temperature according to the set temperature actually set by a user in the operation process so as to control the temperature, when the indoor environment temperature is controlled to be close to the set temperature, the standby operation can be carried out under the normal condition so as to stop the operation of the air conditioner, and after the set temperature and the environment temperature are different to a certain value, the air conditioner is restarted, but the comfort is not enough due to the control mode, and if the air conditioner continuously adjusts and controls the temperature at a higher frequency or a stronger heating and cooling operation state, the energy is not enough.
Based on this, the embodiment of the present invention provides an operation control method for an air conditioner, wherein when the air conditioner is operating, a set temperature of the air conditioner and a current indoor environment temperature are obtained, wherein the set temperature is a temperature set by a user according to a controller, after the set temperature and the current indoor environment temperature are obtained, the set temperature is compared with the indoor environment temperature, when a difference between the set temperature and the indoor environment temperature is less than or equal to a preset temperature difference, it indicates that the current indoor environment temperature is closer to a temperature required by a user, that is, the current air conditioner regulates and controls indoor heating and cooling to enter a relatively stable condition, at this time, the air conditioner does not need to continuously maintain higher-intensity heating or cooling, wherein the preset temperature difference can be set according to an actual condition when the air conditioner leaves a factory or is used in advance by the user, in the embodiment, the temperature can be set to 1 ℃, for comparative calculation of the set temperature and the indoor ambient temperature.
Based on this, when the set temperature and the indoor environment temperature are determined to be relatively close, whether the operation state of the air conditioner accords with the preset operation state is judged, if the operation state of the air conditioner accords with the preset operation state, a control instruction for enabling the air conditioner to enter the preset low operation frequency mode to operate is generated, so as to control the air conditioner to enter the preset low operation frequency mode, so that the air conditioner operates at a lower operation frequency, under the normal condition, when the air conditioner performs normal heating and cooling, the regulation and control of the operation frequency of the compressor is in a certain interval, for example, the minimum operation frequency of the regulation and control is 16Hz, so that the air conditioner can reasonably regulate and control the indoor temperature during normal operation, in the embodiment of the invention, the preset low operation frequency mode can be set to be different from the normally regulated compressor operation frequency interval, for example, the air conditioner operates at the operation frequency of 7Hz, when the indoor environment temperature is close to the temperature set by a user, the operation mode of the air conditioner is adjusted to the preset low operation frequency mode, so that the operation frequency of the compressor is reduced, energy conservation and emission reduction are achieved, the air conditioner is not stopped, although the lower operation frequency of the compressor is smaller than the higher normal operation frequency or the normal operation frequency used for adjusting the indoor environment temperature as soon as possible, the regulation and control capacity of the temperature is relatively smaller, the indoor environment temperature can be maintained to a certain degree, the indoor environment temperature is prevented from being increased or decreased too fast, and the comfort of the indoor environment is improved.
In this embodiment, the preset operation state is mainly used to set a standard for the air conditioner to enter the preset low operation frequency mode, so as to determine the load of the air conditioner at this time, and determine whether the air conditioner can enter the preset low operation frequency mode, so as to prevent the air conditioner from entering the preset low operation frequency mode by mistake, which may cause a burden on the compressor and affect the reliability of the compressor.
In an optional embodiment of the present invention, the determining whether the operation state of the air conditioner meets a preset operation state specifically includes:
when the air conditioner operates in a refrigerating mode, acquiring the exhaust superheat degree and the return superheat degree of the air conditioner, and acquiring the low-pressure change rate of the air conditioner;
and when the exhaust superheat degree is less than or equal to a preset exhaust superheat degree, the return gas superheat degree is less than or equal to a preset return gas superheat degree, and the low-pressure change rate meets a preset standard, judging that the running state of the air conditioner meets a preset running state.
In this embodiment, the step of determining whether the operation state of the air conditioner meets a preset operation state specifically includes obtaining an exhaust superheat degree and a return superheat degree of the air conditioner, where a specific obtaining manner of the exhaust superheat degree of the air conditioner may be: acquiring the temperature of an outer disc of the air conditioner, namely the temperature of a condenser of the outdoor unit, and the exhaust temperature of the air conditioner, and calculating the difference between the exhaust temperature and the temperature of the outer disc, namely the exhaust superheat degree in the embodiment; in addition, the specific acquisition mode of the return air superheat degree of the air conditioner can be as follows: obtaining the inner tray temperature of the air conditioner, namely the temperature of an evaporator of an indoor unit of the air conditioner, obtaining the return air temperature of the air conditioner, calculating the difference value between the return air temperature and the inner tray temperature, namely the return air superheat degree in the embodiment, and meanwhile, judging whether the low-pressure change rate of the air conditioner meets a preset standard, wherein the low-pressure change rate is the change condition of the low pressure of the air conditioner, the preset standard can be set according to the actual situation, when the exhaust air superheat degree is smaller than or equal to the preset exhaust air superheat degree, the return air superheat degree is smaller than or equal to the preset return air superheat degree, and the low-pressure change rate meets the preset standard, judging that the running state of the air conditioner meets the preset running state, thereby more reasonably judging whether the running state of the air conditioner meets the preset running state, namely judging the load condition of the air conditioner, when the load is small, at the moment, the air conditioner is relatively stable to refrigerate indoors, can enter a preset low operation frequency mode to operate, saves energy, and simultaneously operates in a mode of keeping the current indoor environment temperature, and when the load is higher, the air conditioner still has larger burden on the indoor refrigeration at the moment.
The specific values of the preset exhaust superheat degree and the preset return superheat degree can be set according to actual conditions, the value of the preset exhaust superheat degree can be 5 ℃ in the embodiment, and the value of the preset return superheat degree can be 0 ℃.
In this embodiment, the specific determination mode of whether the operation state of the air conditioner meets the preset operation state is mainly described in the cooling operation, and the determination standard can be adjusted correspondingly in the heating operation, so as to achieve the corresponding purpose in the embodiment of the present invention.
In an optional embodiment of the present invention, the acquiring a low-pressure change rate of the air conditioner specifically includes:
acquiring the running low pressure of the air conditioner when the air conditioner runs to a preset time, and acquiring the real-time running low pressure of the air conditioner after the preset time in real time;
calculating the ratio of the real-time operation low pressure to the operation low pressure, and enabling the ratio to be the low pressure change rate;
determining that the low pressure rate of change meets a predetermined criterion includes:
and when the low-pressure change rate is greater than or equal to a preset low-pressure change rate in a first preset time period after the preset moment, judging that the low-pressure change rate of the air conditioner meets the preset standard.
In this embodiment, the step of determining whether the low-voltage change rate of the air conditioner meets the preset standard specifically includes obtaining the operating low voltage when the air conditioner is operated to the preset time, where the preset time can be set according to actual conditions, and in this embodiment, it is set to 1 hour after the air conditioner is turned on and operated, and the obtained operating low voltage when the air conditioner is operated to the preset time can be regarded as obtaining the operating low voltage when the air conditioner is turned on and operated to the preset time, that is, after the air conditioner is operated for 1 hour, obtaining the operating low voltage, and after the air conditioner is operated to be relatively stable, obtaining the operating low voltage to prevent the inaccuracy of the subsequent determination caused by obtaining the operating low voltage when the air conditioner is unstable, and after the air conditioner is operated for 1 hour, obtaining the real-time operating low voltage of the air conditioner after the preset time in real-time, where the low-voltage change rate is a ratio of the real-time operating low voltage to, when the low-voltage change rate is greater than or equal to the preset low-voltage change rate within a first preset time period after the preset moment, the running state of the air conditioner is relatively stable at the moment, the load is small, and the air conditioner can enter a preset low running frequency mode to run so as to control the air conditioner more reasonably.
The preset low-pressure change rate can be set according to actual conditions, and in this embodiment, the preset low-pressure change rate is set to be 90%.
In an optional embodiment of the present invention, before the step of generating the control instruction for making the air conditioner enter the preset low operation frequency mode for operation, the method further includes the following steps:
when the difference value between the set temperature and the indoor environment temperature is greater than the preset temperature difference or the running state of the air conditioner does not accord with the preset running state, generating a control instruction for enabling the air conditioner to enter a normal frequency control mode to run;
wherein the normal frequency control mode includes: and controlling the running frequency of the air conditioner according to the target frequency of the air conditioner and the indoor environment temperature.
In the above embodiment, when the difference between the set temperature and the indoor environment temperature is less than or equal to the preset temperature difference and the operating state of the air conditioner conforms to the preset operating state, the air conditioner is operated in the preset low operating frequency mode, in this embodiment, when the difference between the set temperature of the air conditioner and the indoor environment temperature is greater than the preset temperature difference, it indicates that the difference between the current indoor environment temperature and the temperature set by the user is still large, and at this time, the air conditioner needs to be operated with a higher power or an operating frequency of the compressor, so as to perform a stronger heating or cooling effect, therefore, at this time, the air conditioner is not suitable for being adjusted to enter the preset low operating frequency mode to prevent the poor adjusting effect on the indoor environment temperature, or, when the difference between the set temperature and the indoor environment temperature is less than or equal to the preset temperature difference, however, the operation state of the air conditioner does not conform to the preset operation state, in this embodiment, the non-conformance to the preset operation state, that is, any one of the exhaust superheat degree, the return superheat degree of the air conditioner is smaller and the low-pressure change rate does not conform to the corresponding standard, indicates that the load of the air conditioner is relatively large, and at this time, the air conditioner is also not suitable for entering the preset low operation frequency mode to operate, so as to prevent the air conditioner from entering the preset low operation frequency mode by mistake, and avoid affecting the compressor of the air conditioner.
When the difference between the set temperature and the indoor environment temperature is greater than the preset temperature difference, or the running state of the air conditioner does not conform to the preset running state, a control instruction for enabling the air conditioner to enter a normal frequency control mode to run is generated, wherein the normal frequency control mode of the air conditioner comprises: the operation frequency of the air conditioner is controlled according to the target frequency of the air conditioner and the indoor environment temperature, namely, the air conditioner sets the target frequency according to the set temperature, so that the operation frequency of the air conditioner is controlled according to the indoor environment temperature acquired in real time, the heating and cooling power of the air conditioner is ensured, and the indoor temperature is reasonably increased or reduced, and under the normal condition, the lower limit of the frequency of the normal frequency control mode is 16Hz, so that the problem that the heating and cooling effect is poor due to too low frequency is avoided.
In an alternative embodiment of the present invention, the method further comprises the following steps:
acquiring high pressure and low pressure of the air conditioner when the air conditioner is in the preset low operation frequency mode;
and when the pressure difference between the high pressure and the low pressure is less than or equal to a preset pressure difference, generating a control instruction for reducing the valve step of the expansion valve.
When the air conditioner operates at a low operating frequency, the pressure difference between high pressure and low pressure of the air conditioner is possibly small, and the sliding sheet and the rotor of the air conditioner cannot be tightly pressed, so that the sliding sheet and the rotor are possibly separated to generate discontinuous impact sound, the noise of the air conditioner is generated, and the influence on a user is caused.
Based on this, in this embodiment, when the air conditioner is in the preset low operating frequency mode, the method further includes obtaining the high pressure and the low pressure of the air conditioner, and when the pressure difference between the high pressure and the low pressure is smaller than or equal to the preset pressure difference, it indicates that the pressure difference of the air conditioner is smaller at this time, and the impact sound may be generated, at this time, a control instruction for reducing the valve step of the expansion valve is generated, and the valve step of the expansion valve is reduced, so that the flow rate of the refrigerant in the pipeline can be reduced, thereby increasing the pressure difference, and reducing or avoiding the generation of the impact sound, wherein the pressure difference condition can be obtained in real time in the process of reducing the valve step, and the valve step can be reduced until the pressure; when the pressure difference between the high pressure and the low pressure is larger than the preset pressure difference, the pressure difference of the air conditioner is in a reasonable range at the moment, and the impact sound can not be generated, so that a control instruction of the valve step of the expansion valve of the air conditioner can be generated to keep the valve step of the current expansion valve, excessive adjustment of the expansion valve is not needed, the air conditioner is reasonably adjusted and controlled, and the noise is reduced or avoided.
In this embodiment, the value of presetting differential pressure can carry out actual setting according to detecting in actual production, if when detecting the striking sound, carry out actual detection to the pressure differential condition according to the decibel size of striking sound to contrast and set for presetting differential pressure, in this embodiment, the setting of presetting differential pressure is 0.36Mpa, and the accessible sets up the sensor in the relevant position of air conditioner in order to obtain high pressure and low pressure.
In an optional embodiment of the present invention, the generating a control command for decreasing the valve step of the expansion valve when the pressure difference between the high pressure and the low pressure is less than or equal to a preset pressure difference specifically includes:
and generating a control instruction for reducing the valve step of the expansion valve so as to reduce the current valve step of the expansion valve by one step every a second preset time period.
In this embodiment, when the valve step of the expansion valve is reduced, the control method may specifically be: in the embodiment, the second preset time period can be set to be 20s to prevent the effect of regulating and controlling noise from being unobvious due to low regulation frequency or prevent the comfort from being influenced due to influence on the maintenance of the indoor environment temperature of the air conditioner due to large regulation frequency, wherein when the valve step of the expansion valve is regulated, the size of the valve step is usually limited to be 90 steps to prevent the reduction of the comfort due to excessive regulation.
In an alternative embodiment of the present invention, the method further comprises the following steps:
and when the air conditioner is in the preset low operating frequency mode, and the difference value between the set temperature and the indoor environment temperature is greater than the preset temperature difference or a preset control instruction sent by control equipment is received, generating a control instruction for exiting the preset low operating frequency mode.
When the air conditioner is in a preset low operation frequency mode, if the difference value between the acquired set temperature and the indoor environment temperature is larger than the preset temperature difference, the difference between the current indoor environment temperature and the set temperature is larger, at the moment, the comfort of the indoor environment is possibly reduced, and the comfort of the indoor environment cannot be ensured in the current preset low operation frequency mode; when a preset control instruction sent by the control equipment is received, a control instruction for exiting the preset low operation frequency mode can be generated, for example, when a control instruction for resetting the set temperature, a special operation mode instruction and other related instructions sent by a user through a remote controller are received, the preset low operation frequency mode is exited, and reasonable control of the air conditioner is performed according to actual control of the user.
In a specific embodiment of the present invention, referring to fig. 2, in an example of the air conditioner performing a cooling operation, a compressor of the air conditioner continuously operates for 1h, that is, the air conditioner operates to the preset time, so as to ensure that the air conditioner is in a relatively normal and stable operation state, and obtain a set temperature T of the air conditionerSetting upAnd indoor ambient temperature TInner ringIf T isSetting up-TInner ringJudging whether the air conditioner meets a preset running state or not at the temperature of less than or equal to 1 ℃, otherwise, regulating and controlling the air conditioner in a normal frequency control mode, namely controlling the frequency f according to the target frequency and the indoor environment temperature in a control mode of 16Hz at the lowest; judging whether the running state of the air conditioner accords with the preset running stateIn the state, only when the exhaust superheat T is satisfied at the same timeExhaust of gasesThe low-pressure change rate P obtained at 5 ℃ or less for 20min continuously is more than or equal to 90 percent, and the return air superheat degree T isReturn airWhen being less than or equal to 0 ℃, then judge that the load of air conditioner is lower, the running state of air conditioner accords with preset running state this moment to this, make the air conditioner move with presetting low operating frequency mode, adjust the compressor operating frequency of air conditioner to 7Hz, in order to reduce the energy consumption, keep the comfort level, if unsatisfied, then make the air conditioner move with normal frequency control mode equally.
When the air conditioner operates in a preset low operation frequency mode, comparing and judging the pressure difference △ P of the air conditioner, calculating the pressure difference by obtaining the high pressure and the low pressure of the air conditioner, when the pressure difference △ P is less than 0.36Mpa, indicating that the pressure difference is small and possibly generating impact sound, closing the expansion valve at 20s/1B at the moment, and limiting the minimum pressure to 90B, so that the flow of a pipeline refrigerant is reduced, the pressure difference is increased, the generation of the impact sound is reduced or prevented, otherwise, the expansion valve keeps operating at the current valve step.
Referring to fig. 3, an operation control system of an air conditioner according to another embodiment of the present invention includes:
an acquisition unit for acquiring a set temperature of the air conditioner and an indoor ambient temperature;
the judging unit is used for judging whether the running state of the air conditioner accords with a preset running state or not when the difference value between the set temperature and the indoor environment temperature is smaller than or equal to a preset temperature difference;
and the control unit is used for generating a control instruction for enabling the air conditioner to enter a preset low operation frequency mode to operate when the operation state of the air conditioner accords with a preset operation state.
According to the operation control system of the air conditioner, when the indoor environment temperature is close to the temperature set by a user, the operation mode of the air conditioner is adjusted to the preset low operation frequency mode, so that the operation frequency of the compressor is reduced, energy conservation and emission reduction are achieved, the air conditioner is not stopped, the indoor environment temperature can be maintained to a certain degree, the indoor environment temperature is prevented from being increased or decreased too fast, and the comfort of the indoor environment is improved.
An air conditioner according to another embodiment of the present invention includes a computer-readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed to implement the operation control method of the air conditioner, so as to achieve the beneficial effects of the embodiments of the present invention.
In another embodiment of the present invention, a computer-readable storage medium stores a computer program, which is read and executed by a processor to implement the operation control method of the air conditioner as described above, so as to achieve the beneficial effects of the embodiments of the present invention.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An operation control method of an air conditioner, comprising:
acquiring a set temperature of an air conditioner and an indoor environment temperature;
when the difference value between the set temperature and the indoor environment temperature is smaller than or equal to a preset temperature difference, judging whether the running state of the air conditioner accords with a preset running state;
and if so, generating a control instruction for enabling the air conditioner to enter a preset low operation frequency mode for operation.
2. The operation control method of an air conditioner according to claim 1, wherein the determining whether the operation state of the air conditioner conforms to a preset operation state comprises:
when the air conditioner operates in a refrigerating mode, acquiring the exhaust superheat degree and the return superheat degree of the air conditioner, and acquiring the low-pressure change rate of the air conditioner;
and when the exhaust superheat degree is less than or equal to a preset exhaust superheat degree, the return gas superheat degree is less than or equal to a preset return gas superheat degree, and the low-pressure change rate meets a preset standard, judging that the running state of the air conditioner meets a preset running state.
3. The operation control method of an air conditioner according to claim 2, wherein the acquiring a low pressure change rate of the air conditioner includes:
acquiring the running low pressure of the air conditioner when the air conditioner runs to a preset time, and acquiring the real-time running low pressure of the air conditioner after the preset time in real time;
calculating the ratio of the real-time operation low pressure to the operation low pressure, and enabling the ratio to be the low pressure change rate;
determining that the low pressure rate of change meets a predetermined criterion includes:
and when the low-pressure change rate is greater than or equal to a preset low-pressure change rate in a first preset time period after the preset moment, judging that the low-pressure change rate of the air conditioner meets the preset standard.
4. The operation control method of an air conditioner according to claim 1, further comprising: acquiring high pressure and low pressure of the air conditioner when the air conditioner is in the preset low operation frequency mode;
and when the pressure difference between the high pressure and the low pressure is less than or equal to a preset pressure difference, generating a control instruction for reducing the valve step of the expansion valve.
5. The operation control method of an air conditioner according to claim 4, wherein the generating of the control command for decreasing the valve step of the expansion valve includes:
and generating a control instruction for reducing the valve step of the expansion valve so as to reduce the current valve step of the expansion valve by one step every a second preset time period.
6. The operation control method of an air conditioner according to claim 1, further comprising: and when the air conditioner is in the preset low operating frequency mode, and the difference value between the set temperature and the indoor environment temperature is greater than the preset temperature difference or a preset control instruction sent by control equipment is received, generating a control instruction for exiting the preset low operating frequency mode.
7. The operation control method of an air conditioner according to claim 1, further comprising, before the generating a control instruction for causing the air conditioner to enter a preset low operation frequency mode to operate: when the difference value between the set temperature and the indoor environment temperature is greater than the preset temperature difference or the running state of the air conditioner does not accord with the preset running state, generating a control instruction for enabling the air conditioner to enter a normal frequency control mode to run;
wherein the normal frequency control mode includes: and controlling the running frequency of the air conditioner according to the target frequency of the air conditioner and the indoor environment temperature.
8. An operation control system of an air conditioner, comprising:
an acquisition unit for acquiring a set temperature of the air conditioner and an indoor ambient temperature;
the judging unit is used for judging whether the running state of the air conditioner accords with a preset running state or not when the difference value between the set temperature and the indoor environment temperature is smaller than or equal to a preset temperature difference;
and the control unit is used for generating a control instruction for enabling the air conditioner to enter a preset low operation frequency mode to operate when the operation state of the air conditioner accords with a preset operation state.
9. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and when executed, implements an operation control method of the air conditioner according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the operation control method of an air conditioner according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422370.3A CN111023434B (en) | 2019-12-31 | 2019-12-31 | Operation control method and system of air conditioner, air conditioner and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422370.3A CN111023434B (en) | 2019-12-31 | 2019-12-31 | Operation control method and system of air conditioner, air conditioner and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111023434A true CN111023434A (en) | 2020-04-17 |
| CN111023434B CN111023434B (en) | 2021-08-20 |
Family
ID=70198077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911422370.3A Active CN111023434B (en) | 2019-12-31 | 2019-12-31 | Operation control method and system of air conditioner, air conditioner and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111023434B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520894A (en) * | 2020-07-03 | 2020-08-11 | 宁波奥克斯电气股份有限公司 | Output control method and device for air conditioner compressor, air conditioner and storage medium |
| CN112628984A (en) * | 2020-12-15 | 2021-04-09 | 宁波奥克斯电气股份有限公司 | Control method and device for electronic expansion valve of air conditioner internal unit and air conditioner |
| CN112747514A (en) * | 2021-01-06 | 2021-05-04 | 青岛海尔空调器有限总公司 | Method and device for controlling running frequency of air conditioner compressor and air conditioner |
| CN113280463A (en) * | 2021-06-10 | 2021-08-20 | 宁波奥克斯电气股份有限公司 | Air conditioner control method for improving indoor comfort, air conditioner and storage medium |
| CN113294876A (en) * | 2021-05-08 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Control method and device for multi-connected air conditioner and multi-connected air conditioner |
| CN113587371A (en) * | 2021-07-27 | 2021-11-02 | 青岛海尔空调器有限总公司 | Air conditioner control method and device and air conditioner |
| CN113587335A (en) * | 2021-06-01 | 2021-11-02 | 宁波奥克斯电气股份有限公司 | Control method and device for improving long-time temperature-reaching shutdown of air conditioner and air conditioner |
| CN113819621A (en) * | 2021-08-17 | 2021-12-21 | 青岛海尔空调器有限总公司 | Method and device for controlling operation of air conditioner and air conditioner |
| CN114183886A (en) * | 2021-12-21 | 2022-03-15 | 宁波奥克斯电气股份有限公司 | Low-load operation control method for multi-split system |
| CN114383294A (en) * | 2021-12-15 | 2022-04-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioner control method for preventing indoor temperature from being adjusted excessively and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134148A (en) * | 1987-11-19 | 1989-05-26 | Matsushita Electric Ind Co Ltd | Frequency control device for air conditioner |
| JP2012013283A (en) * | 2010-06-30 | 2012-01-19 | Fujitsu General Ltd | Air conditioner |
| CN106766003A (en) * | 2017-02-06 | 2017-05-31 | 海信（山东）空调有限公司 | A kind of air conditioning control method and device |
| CN108592353A (en) * | 2018-05-09 | 2018-09-28 | 青岛海尔空调电子有限公司 | Control method for air-conditioning system |
| CN109899931A (en) * | 2019-03-12 | 2019-06-18 | 广东美的暖通设备有限公司 | The control method and device of multi-line system efficiency optimization |
-
2019
- 2019-12-31 CN CN201911422370.3A patent/CN111023434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134148A (en) * | 1987-11-19 | 1989-05-26 | Matsushita Electric Ind Co Ltd | Frequency control device for air conditioner |
| JP2012013283A (en) * | 2010-06-30 | 2012-01-19 | Fujitsu General Ltd | Air conditioner |
| CN106766003A (en) * | 2017-02-06 | 2017-05-31 | 海信（山东）空调有限公司 | A kind of air conditioning control method and device |
| CN108592353A (en) * | 2018-05-09 | 2018-09-28 | 青岛海尔空调电子有限公司 | Control method for air-conditioning system |
| CN109899931A (en) * | 2019-03-12 | 2019-06-18 | 广东美的暖通设备有限公司 | The control method and device of multi-line system efficiency optimization |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520894B (en) * | 2020-07-03 | 2020-11-27 | 宁波奥克斯电气股份有限公司 | Output control method and device for air conditioner compressor, air conditioner and storage medium |
| CN111520894A (en) * | 2020-07-03 | 2020-08-11 | 宁波奥克斯电气股份有限公司 | Output control method and device for air conditioner compressor, air conditioner and storage medium |
| CN112628984A (en) * | 2020-12-15 | 2021-04-09 | 宁波奥克斯电气股份有限公司 | Control method and device for electronic expansion valve of air conditioner internal unit and air conditioner |
| CN112747514A (en) * | 2021-01-06 | 2021-05-04 | 青岛海尔空调器有限总公司 | Method and device for controlling running frequency of air conditioner compressor and air conditioner |
| CN113294876B (en) * | 2021-05-08 | 2022-07-08 | 宁波奥克斯电气股份有限公司 | Control method and device for multi-connected air conditioner and multi-connected air conditioner |
| CN113294876A (en) * | 2021-05-08 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Control method and device for multi-connected air conditioner and multi-connected air conditioner |
| CN113587335B (en) * | 2021-06-01 | 2022-11-25 | 宁波奥克斯电气股份有限公司 | Control method and device for improving long-time temperature-reaching shutdown of air conditioner and air conditioner |
| CN113587335A (en) * | 2021-06-01 | 2021-11-02 | 宁波奥克斯电气股份有限公司 | Control method and device for improving long-time temperature-reaching shutdown of air conditioner and air conditioner |
| CN113280463A (en) * | 2021-06-10 | 2021-08-20 | 宁波奥克斯电气股份有限公司 | Air conditioner control method for improving indoor comfort, air conditioner and storage medium |
| CN113280463B (en) * | 2021-06-10 | 2022-04-22 | 宁波奥克斯电气股份有限公司 | Air conditioner control method for improving indoor comfort, air conditioner and storage medium |
| CN113587371A (en) * | 2021-07-27 | 2021-11-02 | 青岛海尔空调器有限总公司 | Air conditioner control method and device and air conditioner |
| WO2023005218A1 (en) * | 2021-07-27 | 2023-02-02 | 青岛海尔空调器有限总公司 | Air conditioner control method and control apparatus, and air conditioner |
| CN113819621A (en) * | 2021-08-17 | 2021-12-21 | 青岛海尔空调器有限总公司 | Method and device for controlling operation of air conditioner and air conditioner |
| CN114383294A (en) * | 2021-12-15 | 2022-04-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioner control method for preventing indoor temperature from being adjusted excessively and air conditioner |
| CN114383294B (en) * | 2021-12-15 | 2024-01-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioner control method for preventing indoor temperature overshoot and air conditioner |
| CN114183886A (en) * | 2021-12-21 | 2022-03-15 | 宁波奥克斯电气股份有限公司 | Low-load operation control method for multi-split system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111023434B (en) | 2021-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111023434B (en) | Operation control method and system of air conditioner, air conditioner and storage medium | |
| CN111076353B (en) | Electronic expansion valve opening control method and device and air conditioner | |
| CN111692736B (en) | Control method of electronic expansion valve and air conditioning system | |
| CN109237713B (en) | Water multi-connected unit operation control method and device, medium and water multi-connected air conditioning system | |
| CN109297157B (en) | Air conditioner control method and air conditioner | |
| CN102242996B (en) | Method for controlling opening of electronic expansion valve in central air-conditioning unit | |
| CN107036256A (en) | The control method of delivery temperature, the control device of delivery temperature and air conditioner | |
| CN110848903B (en) | Air conditioner exhaust fluctuation control method and device, air conditioner and storage medium | |
| CN111140984A (en) | Water multi-connected central air conditioner control method, computer readable storage medium and air conditioner | |
| CN113280463B (en) | Air conditioner control method for improving indoor comfort, air conditioner and storage medium | |
| CN110864422A (en) | Control method and device of fresh air conditioner, fresh air conditioner and storage medium | |
| CN113531801B (en) | Control method and device of multi-connected air conditioner and readable storage medium | |
| CN111765599A (en) | Optimization method of air conditioner control strategy, processor and memory | |
| CN113739341A (en) | Air conditioner comfort control method and device, air conditioner and readable storage medium | |
| CN112710069A (en) | Refrigeration control method and device of air conditioner and air conditioner | |
| CN111336666A (en) | Operation method and device of air conditioner, air conditioner and computer readable storage medium | |
| CN106524433A (en) | Fixed-frequency air conditioner control method | |
| CN113587336B (en) | Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner | |
| CN114893896A (en) | Control method and device of air conditioner | |
| CN111023402B (en) | Self-adaptive adjusting method of air conditioning system and air conditioner | |
| CN112050392B (en) | Control method of air conditioner under refrigeration working condition | |
| CN115200163B (en) | Air conditioner control method and device and air conditioner | |
| CN116045560A (en) | Remote management method and system for refrigerating system and computer readable storage medium | |
| CN112050389B (en) | Control method of air conditioner under refrigeration working condition | |
| CN113551376A (en) | Air conditioner control method and device and air conditioning unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |