CN114923275A - Control method and control system for air conditioner frequency hopping, electronic equipment and storage medium - Google Patents
Control method and control system for air conditioner frequency hopping, electronic equipment and storage medium Download PDFInfo
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- CN114923275A CN114923275A CN202210351741.9A CN202210351741A CN114923275A CN 114923275 A CN114923275 A CN 114923275A CN 202210351741 A CN202210351741 A CN 202210351741A CN 114923275 A CN114923275 A CN 114923275A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method, a control system, electronic equipment and a storage medium for frequency hopping of an air conditioner, wherein the control method comprises the following steps: determining the variation trend of the running frequency of the compressor; adjusting the running state of the air conditioner based on the variation trend; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed. According to the control method for the frequency hopping of the air conditioner, the variation trend of the running frequency of the compressor is determined, the running state of the air conditioner is controlled according to the variation trend, the air conditioner is switched between the variable shunting state and the fixed shunting state, the shunting state of the heat exchanger is changed, the phenomenon that the frequency hopping is blocked in the running process of the air conditioner is avoided, the running stability of the air conditioner is improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and a control system for frequency hopping of an air conditioner, electronic equipment and a storage medium.
Background
Air conditioners are now essential appliances for homes and offices, and are used for a long time especially in summer and winter. The air conditioner can refrigerate in summer and heat in winter, can adjust the indoor temperature to be warm in winter and cool in summer, and provides a comfortable environment for users.
In the operation process of the air conditioner, the stress of a certain point is too large frequently, so that a frequency hopping point in frequency rising or frequency reducing can appear, when the frequency hopping point appears in the air conditioner, an invisible blockage can appear in the air conditioner, and the user experience is seriously influenced.
Disclosure of Invention
The embodiment of the invention provides a control method, a control system, electronic equipment and a storage medium for frequency hopping of an air conditioner, and solves the problem that the conventional air conditioner is jammed due to frequency hopping in the operation process.
The embodiment of the invention provides a control method of air conditioner frequency hopping, which comprises the following steps:
determining the variation trend of the running frequency of the compressor;
adjusting the running state of the air conditioner based on the variation trend;
wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
According to an embodiment of the present invention, the step of adjusting the operation state of the air conditioner based on the variation trend includes:
predicting whether the running frequency of the compressor in the preset time passes through a frequency hopping section or not based on the variation trend;
if the running frequency in the preset time passes through the frequency hopping section, the air conditioner is adjusted to be in a variable shunting state;
and if the operating frequency in the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state.
According to an embodiment of the present invention, the step of adjusting the air conditioner to the variable split state includes:
acquiring the current shunting state of the air conditioner; the shunting state comprises the following steps: single-path shunting and multi-path shunting;
if the air conditioner is in single-path shunting, the air conditioner is adjusted to multi-path shunting for working;
if the air conditioner is in multi-path shunting, the air conditioner is adjusted to single-path shunting to work.
According to an embodiment of the present invention, after the step of adjusting the operation state of the air conditioner based on the variation trend, the method further includes:
re-acquiring the variation trend of the running frequency of the compressor;
predicting whether the running frequency of the compressor in a preset time is in the frequency hopping section or not based on the re-acquired change trend;
if the running frequency in the preset time passes through the frequency hopping section, adjusting the air conditioner to be in a variable shunting state;
and if the operating frequency in the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state.
According to an embodiment of the present invention, if there are a plurality of frequency hopping sections, the step of adjusting the operation state of the air conditioner based on the change trend includes:
predicting whether the running frequency of the compressor in a preset time is in any one of the frequency hopping sections or not based on the variation trend;
if the running frequency within the preset time is in any one of the frequency hopping sections, the air conditioner is adjusted to be in a variable shunting state;
and if the operating frequency within the preset time is outside all the frequency hopping sections, adjusting the air conditioner to be in a fixed shunting state.
According to an embodiment of the present invention, the step of determining the trend of the operating frequency of the compressor comprises:
acquiring a set temperature of an air conditioner and an ambient temperature of a scene;
and determining the variation trend of the running frequency of the compressor based on the set temperature and the environment temperature.
According to an embodiment of the present invention, the step of determining the variation trend of the compressor operating frequency based on the set temperature and the ambient temperature includes:
determining a difference between the ambient temperature and the set temperature;
based on the difference, a trend of change in the operating frequency of the compressor is determined.
The invention also provides a control system for air conditioner frequency hopping, which comprises:
the determining module is used for determining the variation trend of the running frequency of the compressor;
the execution module is used for adjusting the running state of the air conditioner based on the change trend; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
The embodiment of the invention also provides electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the control method of the frequency hopping of the air conditioner.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for controlling frequency hopping of an air conditioner.
According to the control method, the control system, the electronic equipment and the storage medium for the frequency hopping of the air conditioner, the change trend of the running frequency of the compressor is determined, the running state of the air conditioner is controlled according to the change trend, the air conditioner is switched between the variable shunting state and the fixed shunting state, the shunting state of the heat exchanger is changed, the phenomenon that the frequency hopping is blocked in the running process of the air conditioner is avoided, the running stability of the air conditioner is improved, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a variable flow divider according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a heat exchanger according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for controlling frequency hopping of an air conditioner according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for controlling frequency hopping of an air conditioner according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for controlling frequency hopping of an air conditioner according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control system for frequency hopping of an air conditioner according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
reference numerals:
1. a first shunt line; 10. a one-way valve; 2. a second shunt line; 3. a diverter valve; 31. a first communication port; 32. a second communication port; 33. a third communication port; 34. a fourth communication port; 4. a heat exchange line; 610. an acquisition module; 620. an execution module; 710. a processor; 720. a communication interface; 730. a memory; 740. a communication bus.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The invention provides a control method of air conditioner frequency hopping, and the air conditioner can be a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling air conditioner and the like.
As shown in fig. 1 and 2, the indoor heat exchanger or the outdoor heat exchanger of the air conditioner is provided with a variable flow dividing device, and the indoor heat exchanger and the outdoor heat exchanger can be provided with the variable flow dividing device at the same time, and the variable flow dividing device comprises: the system comprises a reversing valve 3, a first shunt pipeline 1, a second shunt pipeline 2 and at least two heat exchange pipelines 4. The first tapping line 1 is connected to the second tapping line 2 via at least two heat exchange lines 4. The first branch pipeline 1 and the second branch pipeline 2 are respectively provided with a main pipeline and a plurality of branch pipelines, and a one-way valve 10 can be arranged in the middle branch pipeline according to requirements.
The change valve 3 is a two-position four-way change valve, and is provided with a first communicating port 31, a second communicating port 32, a third communicating port 33 and a fourth communicating port 34, and the change valve 3 has a first station and a second station. The first communication port 31 is connected to the refrigerant inlet, and the third communication port 33 is connected to the refrigerant outlet.
The air conditioner has a variable split state and a fixed split state. Under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state. Under the condition of fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger of the air conditioner is fixed.
The shunting state is divided into single-path shunting and multi-path shunting, and under the condition of multi-path shunting, refrigerant in the outdoor heat exchanger of the air conditioner is subjected to multi-path shunting to work. Under the condition of single-path flow division, the refrigerant in the outdoor heat exchanger of the air conditioner works in a single path. That is, the air conditioner switches between the one-way split and the multi-way split in the variable split state, and the air conditioner is fixed to operate in the one-way split or the multi-way split in the fixed split state.
When the multi-path flow is divided, the change valve 3 is in the first position, the first communication port 31 is communicated with the second communication port 32, and the third communication port 33 is communicated with the fourth communication port 34. At this time, the second communication port 32 communicates with the first branch line 1, and the fourth communication port 34 communicates with the second branch line 2. The refrigerant of the refrigerant inlet enters from the first shunting pipeline 1, is shunted by the branch pipelines of the first shunting pipeline 1, respectively enters each heat exchange pipeline 4 to exchange heat with the indoor air, enters the main pipeline of the second shunting pipeline 2 by the branch pipelines, finally passes through the fourth communicating port 34 and the third communicating port 33, and is discharged from the refrigerant outlet, so that the heat exchange of a plurality of pipelines is realized.
When the single-path flow is branched, the selector valve 3 is in the second position, the first communication port 31 communicates with the fourth communication port 34, and the third communication port 33 communicates with the second communication port 32. At this time, the second communication port 32 communicates with the second branch line 2, and the fourth communication port 34 communicates with the first branch line 1. The refrigerant at the refrigerant inlet enters from the second shunting pipeline 2, and because the check valves 10 are arranged in part of pipelines in the first shunting pipeline 1, the refrigerant can only exchange heat and be discharged from part of the heat exchange pipelines 4 under the limitation of the check valves, and the heat exchange pipelines can be reduced at the moment.
In this embodiment, taking two heat exchange pipelines 4 as an example, the two heat exchange pipelines are respectively a first heat exchange pipeline and a second heat exchange pipeline. First reposition of redundant personnel pipeline 1 and second reposition of redundant personnel pipeline 2 all are equipped with a trunk line and two spinal branchs way. A one-way valve 10 is arranged in one branch pipeline of the first shunt pipeline 1. It is assumed that a non-return valve 10 is provided in only one of the conduits of the first tapping line 1
When the multi-path flow is divided, the change valve 3 is in the first position, the first communication port 31 is communicated with the second communication port 32, and the third communication port 33 is communicated with the fourth communication port 34. At this time, the second communication port 32 communicates with the first branch flow line 1, and the fourth communication port 34 communicates with the second branch flow line 2. The refrigerant at the refrigerant inlet enters from the first shunting pipeline 1, is shunted by the branch pipeline of the first shunting pipeline 1, respectively enters the first heat exchange pipeline and the second heat exchange pipeline to exchange heat with the indoor air, enters the main pipeline of the second shunting pipeline 2 from the branch pipeline, finally passes through the fourth communicating port 34 and the third communicating port 33, and is discharged from the refrigerant outlet, thereby realizing the simultaneous heat exchange of the two pipelines.
When the single-path flow is branched, the selector valve 3 is in the second position, the first communication port 31 communicates with the fourth communication port 34, and the third communication port 33 communicates with the second communication port 32. At this time, the second communication port 32 communicates with the second branch line 2, and the fourth communication port 34 communicates with the first branch line 1. The refrigerant at the refrigerant inlet enters from the second shunting pipeline 2, and because the check valve 10 is arranged in the branch pipeline in the first shunting pipeline 1, the refrigerant can only exchange heat in the first heat exchange pipeline 4 and be discharged under the limitation of the check valve, and at the moment, the heat exchange is carried out only through one heat exchange pipeline 4.
As shown in fig. 3, the method for controlling the frequency hopping of the air conditioner includes the following steps:
step S310: and determining the variation trend of the running frequency of the compressor.
The air conditioner records and determines a frequency hopping section of a compressor in the air conditioner through a stress vibration experiment before use.
After the air conditioner is started, the air conditioner can determine the variation trend of the running frequency of the compressor through the sensor. In the process of obtaining the variation trend, the set temperature of the air conditioner and the ambient temperature of the scene are obtained, and then the variation trend of the running frequency of the compressor is determined based on the set temperature and the ambient temperature.
Specifically, after the set temperature and the ambient temperature are obtained, the difference between the ambient temperature and the set temperature is determined, and the variation trend of the operating frequency of the compressor can be determined as the compressor can adjust the frequency according to the real-time difference according to the difference between the set temperature and the ambient temperature.
Step S320: and adjusting the running state of the air conditioner based on the variation trend.
After determining the variation trend of the compressor operation frequency, predicting whether the operation frequency of the compressor in the preset time passes through the frequency hopping section or not based on the variation trend of the compressor operation frequency. And if the running frequency in the preset time passes through the frequency hopping section, adjusting the air conditioner to be in a variable shunting state, and under the condition of the variable shunting state, adjusting the shunting state of refrigerant in a heat exchanger of the air conditioner.
And if the operating frequency within the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state, and under the condition of the fixed shunting state, fixing the shunting state of refrigerant in a heat exchanger of the air conditioner.
Specifically, assuming that the preset time is 20 seconds, after determining the trend of the running frequency of the compressor, if the current frequency of the compressor is found to be 20Hz and the frequency is increased at a rate of 5Hz/s, the frequency hopping range is 100Hz-101 Hz. The compressor works according to the current situation, the compressor can pass through the frequency hopping section within the preset time within 20 seconds, the operation frequency within the preset time passes through the frequency hopping section, if the air conditioner is not adjusted, the frequency hopping clamp phenomenon will occur, the air conditioner is adjusted to be in a variable shunt state, and the shunt state of the air conditioner is adjusted to avoid the frequency hopping section.
After the variation trend of the running frequency of the compressor is determined, if the current frequency of the compressor is found to be 50Hz, the frequency is increased at the speed of 1Hz/s, and the frequency hopping section is 100Hz-101Hz, the compressor works according to the current condition, the compressor does not pass through the frequency hopping section within the preset time within 20 seconds, the running frequency within the preset time does not pass through the frequency hopping section, the running state of the air conditioner is kept unchanged, the frequency hopping stuck phenomenon does not occur, and the air conditioner is adjusted to be in a fixed shunting state.
The control method for the frequency hopping of the air conditioner provided by the invention firstly determines the variation trend of the running frequency of the compressor, controls the running state of the air conditioner according to the variation trend, switches the air conditioner between the variable shunting state and the fixed shunting state, changes the shunting state of the heat exchanger, avoids the phenomenon of jamming caused by frequency hopping in the running process of the air conditioner, improves the running stability of the air conditioner and improves the user experience.
Based on the above embodiment, as shown in fig. 4, the step of adjusting the air conditioner to the variable split state includes:
step 410: and acquiring the current shunting state of the air conditioner.
And when the running frequency in the preset time passes through the frequency hopping section, acquiring the shunting state of the indoor heat exchanger and/or the outdoor heat exchanger of the air conditioner. The shunting state comprises: single-path shunting and multi-path shunting.
Step 420: if the air conditioner is in single-path shunting, the air conditioner is adjusted to multi-path shunting to work.
And adjusting the shunting state of the heat exchanger to switch the heat exchanger between single-path shunting or multi-path shunting. Three or four heat exchange pipelines can be arranged according to the requirement, so that the shunting state can also be set to be a partially shunting intermediate state, and the selection can be carried out according to the requirement in the operation process.
If the indoor heat exchanger and/or the outdoor heat exchanger are/is in single-path shunt, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for multi-path shunt, the situation that the single-path shunt passes through a frequency hopping section is avoided, and after adjustment, due to the fact that different frequency hopping sections exist in multi-path shunt and single-path shunt, corresponding frequency hopping sections can be effectively skipped. If the air conditioner is also provided with a partial shunting intermediate device, the state of single-path shunting can be adjusted to be a partial shunting state, and the partial shunting is utilized to be separated from the frequency hopping section.
Step 430: if the air conditioner is in multi-path shunting, the air conditioner is adjusted to be in single-path shunting for working.
If the indoor heat exchanger and/or the outdoor heat exchanger are/is in multi-path shunting, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for single-path shunting, the situation that the multi-path shunting passes through a frequency hopping section is avoided, and after adjustment, the corresponding frequency hopping section can be effectively skipped due to the fact that different frequency hopping sections exist in the multi-path shunting and the single-path shunting. If the air conditioner is also provided with a partial shunting intermediate device, the state of multi-path shunting can be adjusted to be a partial shunting state, and the air conditioner can be separated from the frequency hopping section by using partial shunting.
In step S320: after the step of adjusting the operation state of the air conditioner based on the variation trend, as shown in fig. 5, the method further includes:
step 510: and re-acquiring the variation trend of the running frequency of the compressor.
After the shunting state is adjusted, the air conditioner determines the variation trend of the running frequency of the compressor again through the sensor.
Step 520: and predicting whether the running frequency of the compressor in the preset time is in the frequency hopping section or not based on the re-acquired change trend.
And predicting whether the running frequency of the compressor in the preset time passes through the frequency hopping section or not based on the variation trend of the running frequency of the compressor.
Step 530: and if the running frequency in the preset time passes through the frequency hopping section, adjusting the air conditioner to be in a variable shunting state.
And if the running frequency in the preset time passes through the frequency hopping section, adjusting the air conditioner to be in a variable shunting state, and under the condition of the variable shunting state, adjusting the shunting state of refrigerant in a heat exchanger of the air conditioner.
Step 540: and if the running frequency in the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state.
And if the operating frequency within the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state, and under the condition of the fixed shunting state, fixing the shunting state of the refrigerant in a heat exchanger of the air conditioner.
Specifically, assuming that the preset time is 20 seconds, after determining the variation trend of the operating frequency of the compressor, if the current frequency of the compressor is found to be 20Hz and the frequency is increased at a speed of 5Hz/s, the frequency hopping section is 100Hz-101 Hz. The compressor works according to the current situation, the compressor can pass through the frequency hopping section within the preset time within 20 seconds, the operation frequency within the preset time passes through the frequency hopping section, if the air conditioner is not adjusted, the frequency hopping clamp phenomenon will occur, the air conditioner is adjusted to be in a variable shunt state, and the shunt state of the air conditioner is adjusted to avoid the frequency hopping section.
After the change trend of the running frequency of the compressor is determined, if the current frequency of the compressor is found to be 50Hz, the frequency is increased at the speed of 1Hz/s, and the frequency hopping section is 100Hz-101Hz, the compressor works according to the current condition, the compressor cannot pass through the frequency hopping section within the preset time within 20 seconds, which indicates that the running frequency within the preset time does not pass through the frequency hopping section, and the air conditioner keeps the running state and does not have the frequency hopping stuck phenomenon, the air conditioner is adjusted to be in a fixed shunt state.
If there are multiple hop sectors, step S320: the step of adjusting the operation state of the air conditioner based on the variation trend includes: predicting whether the running frequency of the compressor in a preset time is in any one of the frequency hopping sections or not based on the variation trend; if the running frequency within the preset time is in any one of the frequency hopping sections, the air conditioner is adjusted to be in a variable shunting state; and if the operating frequency within the preset time is outside all the frequency hopping sections, adjusting the air conditioner to be in a fixed shunting state.
Specifically, assuming that the preset time is 20 seconds, after determining the trend of the running frequency of the compressor, if the current frequency of the compressor is found to be 20Hz and the frequency is increased at a rate of 1Hz/s, the frequency hopping sections are 30Hz-31Hz and 100Hz-101 Hz. The compressor works according to the current situation, the compressor can pass through one of the frequency hopping sections within the preset time within 20 seconds, the operation frequency within the preset time passes through the frequency hopping section, if the air conditioner is not adjusted, the frequency hopping clamp phenomenon will occur, the air conditioner is adjusted to be in a variable shunt state, and the shunt state of the air conditioner is adjusted to avoid the frequency hopping section.
After the variation trend of the running frequency of the compressor is determined, if the current frequency of the compressor is found to be 50Hz, the frequency is increased at the speed of 1Hz/s, the frequency hopping sections are 30Hz-31Hz and 100Hz-101Hz, the compressor works according to the current condition, the compressor does not pass through any frequency hopping section within the preset time within 20 seconds, the running frequency within the preset time does not pass through the frequency hopping section, the air conditioner keeps the running state unchanged, the frequency hopping and blocking phenomenon does not occur, and the air conditioner is adjusted to be in a fixed shunting state.
The following describes the control system for air conditioner frequency hopping according to an embodiment of the present invention, and the control system for air conditioner frequency hopping described below and the control method described above may be referred to correspondingly.
As shown in fig. 6, the control system of air conditioner frequency hopping includes: a determination module 610 and an execution module 620.
The determining module 610 is configured to determine a variation trend of the operating frequency of the compressor; the execution module 620 is configured to adjust an operation state of the air conditioner based on the variation trend; wherein, the running state includes: a variable shunt state and a fixed shunt state; under the condition of variable shunt state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunt state; under the condition of fixing the shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
Fig. 7 illustrates a physical structure diagram of an electronic device, and as shown in fig. 7, the electronic device may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. Processor 710 may call logic instructions in memory 730 to perform the control method comprising: determining the variation trend of the running frequency of the compressor; adjusting the running state of the air conditioner based on the variation trend; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
It should be noted that, when being implemented specifically, the electronic device in this embodiment may be a server, a PC, or other devices, as long as the structure includes the processor 710, the communication interface 720, the memory 730, and the communication bus 740 shown in fig. 7, where the processor 710, the communication interface 720, and the memory 730 complete mutual communication through the communication bus 740, and the processor 710 may call the logic instructions in the memory 730 to execute the above method. The embodiment does not limit the specific implementation form of the electronic device.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Further, an embodiment of the present invention discloses a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, the computer being capable of executing the control method provided by the above method embodiments, the control method comprising: determining the variation trend of the running frequency of the compressor; adjusting the running state of the air conditioner based on the variation trend; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the control method provided in the foregoing embodiments when executed by a processor, where the control method includes: determining the variation trend of the running frequency of the compressor; adjusting the running state of the air conditioner based on the variation trend; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed 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 modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (10)
1. A control method for frequency hopping of an air conditioner is characterized by comprising the following steps:
determining the variation trend of the running frequency of the compressor;
adjusting the running state of the air conditioner based on the variation trend;
wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
2. The method as claimed in claim 1, wherein the step of adjusting the operating state of the air conditioner based on the trend of change comprises:
predicting whether the running frequency of the compressor in the preset time passes through a frequency hopping section or not based on the variation trend;
if the running frequency in the preset time passes through the frequency hopping section, the air conditioner is adjusted to be in a variable shunting state;
and if the operating frequency in the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state.
3. The method according to claim 2, wherein the step of adjusting the air conditioner to the variable split state comprises:
acquiring the current shunting state of the air conditioner; the shunting state comprises: single-path shunting and multi-path shunting;
if the air conditioner is in single-path shunting, the air conditioner is adjusted to multi-path shunting for working;
if the air conditioner is in multi-path shunting, the air conditioner is adjusted to be in single-path shunting for working.
4. The method for controlling air conditioner frequency hopping according to claim 2, further comprising, after the step of adjusting the operation state of the air conditioner based on the variation tendency:
re-acquiring the variation trend of the running frequency of the compressor;
predicting whether the running frequency of the compressor in a preset time is in the frequency hopping section or not based on the re-acquired change trend;
if the running frequency in the preset time passes through the frequency hopping section, the air conditioner is adjusted to be in a variable shunting state;
and if the operating frequency in the preset time does not pass through the frequency hopping section, adjusting the air conditioner to be in a fixed shunting state.
5. The method according to claim 2, wherein if there are a plurality of the frequency hopping segments, the step of adjusting the operation status of the air conditioner based on the variation trend comprises:
predicting whether the running frequency of the compressor in a preset time is in any one of the frequency hopping sections or not based on the variation trend;
if the running frequency within the preset time is in any one of the frequency hopping sections, the air conditioner is adjusted to be in a variable shunting state;
and if the operating frequency within the preset time is outside all the frequency hopping sections, adjusting the air conditioner to be in a fixed shunting state.
6. The control method of air conditioner frequency hopping according to any one of claims 1 to 5, wherein the step of determining the trend of variation of the operating frequency of the compressor includes:
acquiring a set temperature of an air conditioner and an ambient temperature of a scene;
and determining the variation trend of the running frequency of the compressor based on the set temperature and the environment temperature.
7. The method as claimed in claim 6, wherein the step of determining the variation trend of the compressor operation frequency based on the set temperature and the ambient temperature comprises:
determining a difference between the ambient temperature and the set temperature;
based on the difference, a trend of change in the operating frequency of the compressor is determined.
8. A control system for frequency hopping of an air conditioner, comprising:
the determining module is used for determining the variation trend of the running frequency of the compressor;
the execution module is used for adjusting the running state of the air conditioner based on the change trend; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in a heat exchanger of the air conditioner adjusts the shunting state; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for controlling the frequency hopping of the air conditioner according to any one of claims 1 to 7 when executing the program.
10. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method for controlling air conditioner frequency hopping according to any one of claims 1 to 7.
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| CN202210351741.9A CN114923275A (en) | 2022-04-02 | 2022-04-02 | Control method and control system for air conditioner frequency hopping, electronic equipment and storage medium |
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