CN114738977B - Air conditioner flux weakening angle control method, device and storage medium - Google Patents
Air conditioner flux weakening angle control method, device and storage medium Download PDFInfo
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- CN114738977B CN114738977B CN202210325594.8A CN202210325594A CN114738977B CN 114738977 B CN114738977 B CN 114738977B CN 202210325594 A CN202210325594 A CN 202210325594A CN 114738977 B CN114738977 B CN 114738977B
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- 230000005389 magnetism Effects 0.000 claims 2
- 238000004891 communication Methods 0.000 description 10
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- 238000004378 air conditioning Methods 0.000 description 9
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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 disclosure relates to a method, a device and a storage medium for controlling a weak magnetic angle of an air conditioner. The air conditioner field weakening angle control method comprises the following steps: responding to the air conditioner entering a field weakening control mode, acquiring the operating frequency of the air conditioner compressor, and monitoring the outdoor environment temperature in the operation process of the air conditioner compressor; and adjusting the weak magnetic angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature. Through the method and the device, different weak magnetic angles can be increased in a distinguishing mode through different outdoor environment temperature intervals and different air conditioner compressor operation frequency difference intervals, and fine control of weak magnetic control is achieved.
Description
Technical Field
The disclosure relates to the technical field of air conditioners, in particular to a method and a device for controlling a weak magnetic angle of an air conditioner and a storage medium.
Background
The use of air conditioners is becoming more common and the control of air conditioners is constantly being optimized. Among them, it is a relatively important study for the control of an air conditioner compressor.
In the related art, in the running process of an air conditioning system, a compressor cannot meet the power requirement in a constant power area, and needs to enter weak magnetic control to meet the power requirement. However, in the method for adjusting the power by the weak magnetic control, it is difficult to ensure the fine control of the weak magnetic control on the premise of reliability.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a method, an apparatus and a storage medium for controlling a weak magnetic angle of an air conditioner.
According to a first aspect of an embodiment of the present disclosure, there is provided a method for controlling a field weakening angle of an air conditioner, including: responding to the air conditioner entering a field weakening control mode, acquiring the operating frequency of the air conditioner compressor, and monitoring the outdoor environment temperature in the operation process of the air conditioner compressor; and adjusting the weak magnetic angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature.
In one embodiment, the adjusting the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature includes: if the operating frequency is smaller than the target operating frequency, determining the frequency flux weakening limit time corresponding to the air conditioner compressor after entering a flux weakening control mode; and responding to the frequency field weakening limit time being larger than a preset field weakening judgment time threshold value, and adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature.
In yet another embodiment, the adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor ambient temperature includes: according to the operating frequency and the outdoor environment temperature, determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor; and increasing the angle adjustment amount on the current field weakening angle of the air conditioner compressor.
In yet another embodiment, the determining the angle adjustment amount of the field weakening angle of the air conditioner compressor according to the operation frequency and the outdoor environment temperature includes: acquiring a preset upper limit threshold value of the weak magnetic outer ring and a preset lower limit threshold value of the weak magnetic outer ring; and determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor based on the weak magnetic outer ring upper limit threshold, the weak magnetic outer ring lower limit threshold, the target operating frequency, the operating frequency and the outdoor environment temperature.
In yet another embodiment, the determining the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the field weakening outer ring upper limit threshold, the field weakening outer ring lower limit threshold, the target operating frequency, the operating frequency, and the outdoor environment temperature includes: if the outdoor environment temperature is smaller than the weak magnetic outer ring lower limit threshold or the outdoor environment temperature is larger than the weak magnetic outer ring upper limit threshold, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a first adjustment angle; and if the outdoor environment temperature is greater than or equal to the low-magnetic-flux-weakening outer ring lower limit threshold and is less than or equal to the low-magnetic-weakening outer ring upper limit threshold, determining the angle adjustment amount of the low-magnetic-flux-weakening angle of the air conditioner compressor based on the difference value between the target operating frequency and the operating frequency.
In yet another embodiment, the determining the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the difference between the target operating frequency and the operating frequency includes: if the difference between the target operating frequency and the operating frequency is greater than a first frequency difference threshold, determining the angle adjustment amount of the field weakening angle of the air conditioner compressor as a second adjustment angle; if the difference between the target operating frequency and the operating frequency is smaller than a first frequency difference threshold and larger than a second frequency difference threshold, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a third adjustment angle; if the difference value between the target operating frequency and the operating frequency is smaller than a second frequency difference value threshold value, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a fourth adjustment angle; the fourth adjustment angle is smaller than the first adjustment angle, the first adjustment angle is smaller than the third adjustment angle, and the third adjustment angle is smaller than the second adjustment angle.
According to a second aspect of embodiments of the present disclosure, there is provided an air conditioner field weakening angle control device, including an obtaining unit, configured to obtain an operation frequency of an air conditioner compressor in response to an air conditioner entering a field weakening control mode, and monitor an outdoor environment temperature during an operation of the air conditioner compressor; and the adjusting unit is used for adjusting the weak magnetic angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature.
In one embodiment, the adjusting unit adjusts the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature in the following manner: if the operating frequency is smaller than the target operating frequency, determining the frequency flux weakening limit time corresponding to the air conditioner compressor after entering a flux weakening control mode; and responding to the frequency field weakening limit time being larger than a preset field weakening judgment time threshold value, and adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature.
In another embodiment, the adjusting unit adjusts the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature in the following manner: according to the operating frequency and the outdoor environment temperature, determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor; and increasing the angle adjustment amount on the current field weakening angle of the air conditioner compressor.
In another embodiment, the adjusting unit determines the angle adjustment amount of the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature in the following manner: acquiring a preset upper limit threshold value of the weak magnetic outer ring and a preset lower limit threshold value of the weak magnetic outer ring; and determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor based on the weak magnetic outer ring upper limit threshold, the weak magnetic outer ring lower limit threshold, the target operating frequency, the operating frequency and the outdoor environment temperature.
In another embodiment, the adjusting unit determines the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the field weakening outer ring upper limit threshold, the field weakening outer ring lower limit threshold, the target operating frequency, the operating frequency, and the outdoor environment temperature in the following manner: if the outdoor environment temperature is smaller than the weak magnetic outer ring lower limit threshold or the outdoor environment temperature is larger than the weak magnetic outer ring upper limit threshold, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a first adjustment angle; and if the outdoor environment temperature is greater than or equal to the low-magnetic-flux-weakening outer ring lower limit threshold and is less than or equal to the low-magnetic-weakening outer ring upper limit threshold, determining the angle adjustment amount of the low-magnetic-flux-weakening angle of the air conditioner compressor based on the difference value between the target operating frequency and the operating frequency.
In another embodiment, the adjustment unit determines the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the difference between the target operating frequency and the operating frequency in the following manner: if the difference between the target operating frequency and the operating frequency is greater than a first frequency difference threshold, determining the angle adjustment amount of the field weakening angle of the air conditioner compressor as a second adjustment angle; if the difference between the target operating frequency and the operating frequency is smaller than a first frequency difference threshold and larger than a second frequency difference threshold, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a third adjustment angle; if the difference value between the target operating frequency and the operating frequency is smaller than a second frequency difference value threshold value, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a fourth adjustment angle; the fourth adjustment angle is smaller than the first adjustment angle, the first adjustment angle is smaller than the third adjustment angle, and the third adjustment angle is smaller than the second adjustment angle.
According to a third aspect of the embodiments of the present disclosure, there is provided an air conditioner flux weakening angle control device, which is characterized by comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: a method for performing the air conditioner flux weakening angle control of the first aspect or any implementation manner of the first aspect.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a storage medium, wherein instructions are stored in the storage medium, which when executed by a processor of a terminal, enable the terminal including the processor to perform the method of air conditioner flux weakening angle control in the first aspect or any implementation manner of the first aspect.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the running frequency of the air conditioner compressor cannot reach the target running frequency, so that the air conditioner compressor enters the field weakening control, different field weakening angles can be increased in a distinguishing mode according to different outdoor environment temperature intervals and different air conditioner compressor running frequency difference intervals, and the fine control of the field weakening control is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a method of controlling a weak magnetic angle of an air conditioner according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a method of adjusting a field weakening angle of an air conditioner compressor according to an operating frequency and an outdoor environment temperature according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a method of adjusting a field weakening angle of an air conditioner compressor based on an operating frequency and an outdoor environment temperature according to an exemplary embodiment.
Fig. 4 is a flowchart illustrating a method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor according to an operation frequency and an outdoor environment temperature according to an exemplary embodiment.
FIG. 5 is a flowchart illustrating a method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor based on a field weakening outer ring upper threshold, a field weakening outer ring lower threshold, a target operating frequency, an operating frequency, and an outdoor ambient temperature, according to an exemplary embodiment.
Fig. 6 is a flowchart illustrating a method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor based on a difference between a target operating frequency and an operating frequency according to an exemplary embodiment.
Fig. 7 is a schematic diagram illustrating a method of air conditioner flux weakening angle control according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating an air conditioner flux weakening angle control device according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating an apparatus for weak magnetic angle control of an air conditioner according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure.
In the related art, the air conditioner compressor operates in a constant power area, when the actual power requirement of the system is larger than the power provided by the current air conditioner compressor, the operating frequency of the air conditioner compressor cannot be operated to the target operating frequency, and then the weak magnetic control is performed, but the weak magnetic angle is difficult to achieve fine control in the weak magnetic control process. For example, after the air conditioner compressor enters the field weakening control, the field weakening angle cannot be finely controlled through the outdoor environment and the difference interval between the operating frequency and the target frequency.
The embodiment of the disclosure provides a scheme for adjusting the weak magnetic angle of an air conditioner compressor through operating frequency and outdoor environment temperature so as to finely control the weak magnetic angle.
Fig. 1 is a flowchart illustrating a method of controlling a weak magnetic angle of an air conditioner according to an exemplary embodiment, and the method of controlling the weak magnetic angle of the air conditioner as shown in fig. 1 includes the following steps.
In step S11, in response to the air conditioner entering the field weakening control mode, the operating frequency of the air conditioner compressor is obtained, and the outdoor environment temperature during the operation of the air conditioner compressor is monitored.
In the embodiment of the disclosure, the actual operating frequency of the air conditioner compressor cannot reach the target operating frequency, and the air conditioner is required to enter the field weakening control mode, so that the actual operating frequency is increased to reach the target operating frequency.
In the embodiment of the disclosure, the operating frequency of the air conditioner compressor can be measured by using a clamp meter. The outdoor environment temperature in the running process of the air conditioner compressor can be measured through a temperature sensing probe arranged on an air conditioner outdoor radiator and used for detecting the outdoor temperature in the running process of the air conditioner compressor.
In step S12, the field weakening angle of the air conditioner compressor is adjusted according to the operating frequency and the outdoor environment temperature.
According to the air conditioner flux weakening angle control method, the target operation frequency of the current air conditioner compressor operation frequency is judged through the outdoor environment temperature by measuring the operation frequency and the outdoor temperature of the air conditioner compressor. And judging the difference between the current operating frequency of the air conditioner compressor and the target operating frequency. And controlling the weak magnetic angle of the air conditioner compressor according to the difference between the current operating frequency and the target operating frequency of the air conditioner compressor, so as to achieve the purpose of finely controlling the operating frequency of the air conditioner compressor.
The following embodiments of the present disclosure further explain and illustrate the method for adjusting the field weakening angle of the air conditioner compressor in the above embodiments of the present disclosure.
Fig. 2 is a flowchart illustrating a method of adjusting a field weakening angle of an air conditioner compressor according to an operation frequency and an outdoor environment temperature according to an exemplary embodiment, and as shown in fig. 2, the method of adjusting a field weakening angle of an air conditioner compressor according to an operation frequency and an outdoor environment temperature includes the following steps.
In step S21, if the operating frequency is smaller than the target operating frequency, the frequency flux weakening limit time corresponding to the air conditioner compressor after entering the flux weakening control mode is determined.
In the embodiment of the disclosure, if the operating frequency of the air conditioner compressor is smaller than the target operating frequency, it is determined that the air conditioner compressor enters the field weakening control mode. And starting timing from the air conditioner compressor entering the field weakening control mode, wherein the obtained time is the frequency field weakening limit time.
In step S22, in response to the frequency field weakening limit time being greater than the preset field weakening judgment time threshold, the field weakening angle of the air conditioner compressor is adjusted based on the operating frequency and the outdoor environment temperature.
In the embodiment of the disclosure, a weak magnetic judgment time threshold is preset, wherein the weak magnetic judgment time threshold is a threshold for judging the time of the air conditioner compressor entering the weak magnetic control mode. The long time of the air conditioner compressor entering the field weakening control mode indicates that the running frequency of the current air conditioner compressor has a larger difference with the target running frequency. For example, the field weakening judgment time threshold may be set to 1 minute in advance based on the operating frequency of the air conditioner compressor and the target operating frequency.
In the embodiment of the disclosure, the frequency field weakening limit time is larger than the preset field weakening judgment time threshold, so that it can be judged that the field weakening angle of the current air conditioner compressor cannot meet the requirement that the running frequency of the air conditioner compressor reaches the target running frequency. The weak magnetic angle of the air conditioner compressor is adjusted based on the operating frequency of the air conditioner compressor and the outdoor environment temperature.
The following embodiments of the present disclosure further explain and illustrate the method for adjusting the field weakening angle of the air conditioner compressor in the above embodiments of the present disclosure.
Fig. 3 is a flowchart illustrating a method of adjusting a field weakening angle of an air conditioner compressor based on an operating frequency and an outdoor environment temperature according to an exemplary embodiment, and the method of adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature as shown in fig. 3 includes the following steps.
In step S31, an angle adjustment amount of the field weakening angle of the air conditioner compressor is determined according to the operation frequency and the outdoor environment temperature.
In the embodiment of the disclosure, the difference value between the current air-conditioning compressor and the target operating frequency can be obtained according to the operating frequency of the current air-conditioning compressor, and whether the current air-conditioning compressor is under heavy load or not can be obtained according to the outdoor environment temperature for performing flux weakening control. And determining the angle adjustment quantity of the field weakening angle of the current air-conditioning compressor according to the difference value between the current air-conditioning compressor and the target operating frequency and the load condition of the current air-conditioning compressor.
In step S32, the angle adjustment amount is increased on the current field weakening angle of the air conditioner compressor.
In the embodiment of the disclosure, according to the difference value between the air conditioner compressor and the target operating frequency and the load condition of the current air conditioner compressor, the determined angle adjustment quantity of the air conditioner compressor is added with the current field weakening angle of the air conditioner compressor, so as to obtain the target field weakening angle which can finally enable the operating frequency of the air conditioner compressor to reach the target operating frequency.
The following embodiments of the present disclosure further explain and explain the method of determining the angle adjustment amount of the field weakening angle of the air conditioner compressor in the above embodiments of the present disclosure.
Fig. 4 is a flowchart illustrating a method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor according to an operation frequency and an outdoor environment temperature according to an exemplary embodiment, and as shown in fig. 4, the method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor according to an operation frequency and an outdoor environment temperature includes the following steps.
In step S41, a preset upper threshold value of the outer ring of weak magnetic field and a preset lower threshold value of the outer ring of weak magnetic field are obtained.
In the embodiment of the disclosure, the preset upper limit threshold value and the preset lower limit threshold value of the weak magnetic outer ring are the upper limit temperature of the outdoor environment and the lower limit temperature of the outdoor environment. The upper limit threshold of the weak magnetic outer ring can be set to 58 ℃, and the lower limit threshold of the weak magnetic outer ring can be set to-10 ℃.
In step S42, an angle adjustment amount of the field weakening angle of the air conditioner compressor is determined based on the field weakening outer ring upper limit threshold, the field weakening outer ring lower limit threshold, the target operating frequency, the operating frequency, and the outdoor environment temperature.
In the embodiment of the disclosure, based on the upper limit threshold value of the weak magnetic outer ring, the lower limit threshold value of the weak magnetic outer ring, the target operating frequency, the operating frequency and the outdoor environment temperature, the relationship between the current outdoor environment temperature of the air conditioner compressor and the threshold value of the weak magnetic outer ring can be obtained. And judging the load condition, the target operating frequency and the current operating frequency of the air conditioner compressor, and obtaining the angle adjustment quantity of the field weakening angle of the air conditioner compressor.
The following embodiments of the present disclosure further explain and explain the method of determining the angle adjustment amount of the field weakening angle of the air conditioner compressor in the above embodiments of the present disclosure.
Fig. 5 is a flowchart illustrating a method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor based on an upper field weakening outer ring threshold, a lower field weakening outer ring threshold, a target operating frequency, an operating frequency, and an outdoor ambient temperature according to an exemplary embodiment, and the method of determining the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the upper field weakening outer ring threshold, the lower field weakening outer ring threshold, the target operating frequency, the operating frequency, and the outdoor ambient temperature as shown in fig. 5 includes the following steps.
In step S51, if the outdoor environment temperature is less than the lower limit threshold of the flux-weakening outer ring, or the outdoor environment temperature is greater than the upper limit threshold of the flux-weakening outer ring, the angle adjustment amount of the flux-weakening angle of the air conditioner compressor is determined to be the first adjustment angle.
In the embodiment of the disclosure, the upper limit threshold value of the weak magnetic outer ring and the lower limit threshold value of the weak magnetic outer ring are generally used for judging whether the outdoor environment is in a state of over-high temperature or under-low temperature. If the outdoor environment temperature is smaller than the lower limit threshold of the weak magnetic outer ring or the outdoor environment temperature is larger than the upper limit threshold of the weak magnetic outer ring, the air conditioner compressor can be judged to be in a state of too high or too low outdoor environment temperature, and weak magnetic control is carried out under the condition of heavier load. At this time, the field weakening control of the air conditioner compressor needs a larger field weakening angle within a certain range, but the field weakening angle cannot exceed the range, so that the out-of-step condition of the air conditioner compressor is prevented. For example, the first adjustment angle may be set to 20 degrees.
In step S52, if the outdoor ambient temperature is greater than or equal to the lower limit threshold of the flux-weakening outer ring and less than or equal to the upper limit threshold of the flux-weakening outer ring, the angle adjustment amount of the flux-weakening angle of the air-conditioning compressor is determined based on the difference between the target operating frequency and the operating frequency.
In the embodiment of the disclosure, the outdoor environment temperature is greater than or equal to the lower limit threshold value of the weak magnetic outer ring and less than or equal to the upper limit threshold value of the weak magnetic outer ring, so that the air conditioner compressor can be judged to be in a normal state, and the air conditioner compressor is subjected to weak magnetic control under the normal load condition. At this time, an angle adjustment amount of the field weakening angle of the air conditioner compressor is determined according to a difference between the target operating frequency and the operating frequency.
The following embodiments of the present disclosure further explain and explain the method of determining the angle adjustment amount of the field weakening angle of the air conditioner compressor in the above embodiments of the present disclosure.
Fig. 6 is a flowchart illustrating a method of determining an angle adjustment amount of a field weakening angle of an air conditioner compressor based on a difference between a target operating frequency and an operating frequency according to an exemplary embodiment, and the method of determining the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the difference between the target operating frequency and the operating frequency as shown in fig. 6 includes the following steps.
In step S61, if the difference between the target operating frequency and the operating frequency is greater than the first frequency difference threshold, it is determined that the angle adjustment amount of the field weakening angle of the air conditioner compressor is the second adjustment angle.
In the embodiment of the present disclosure, the first frequency difference threshold is a higher frequency difference threshold, which is used to determine a difference between the target operating frequency and the operating frequency, where the first frequency difference threshold may be set to 10 hz.
In the embodiment of the disclosure, the difference between the target operating frequency and the operating frequency is greater than the first frequency difference threshold, and it may be determined that the difference between the operating frequency and the target operating frequency is greater, so that the weak magnetic control of the air conditioner compressor needs a greater weak magnetic angle to meet that the operating frequency reaches the target operating frequency, for example, the second adjustment angle may be set to 35 degrees.
In step S62, if the difference between the target operating frequency and the operating frequency is smaller than the first frequency difference threshold and larger than the second frequency difference threshold, the angle adjustment amount of the field weakening angle of the air conditioner compressor is determined to be the third adjustment angle.
In the embodiment of the disclosure, the difference between the target operating frequency and the operating frequency is smaller than the first frequency difference threshold, and it can be determined that there is a middle difference between the operating frequency and the target operating frequency, so that the weak magnetic control of the air conditioner compressor can meet that the operating frequency reaches the target operating frequency without a large weak magnetic angle, for example, the third adjustment angle can be set to 25 degrees.
In step S63, if the difference between the target operating frequency and the operating frequency is smaller than the second frequency difference threshold, it is determined that the angle adjustment amount of the field weakening angle of the air conditioner compressor is the fourth adjustment angle.
In the embodiment of the present disclosure, the second frequency difference threshold is a lower frequency difference threshold, which is used to determine a difference between the target operating frequency and the operating frequency, where the second frequency difference threshold may be set to 5 hz.
In the embodiment of the disclosure, the difference between the target operating frequency and the operating frequency is smaller than the second frequency difference threshold, and it can be determined that the difference between the operating frequency and the target operating frequency is smaller, so that the weak magnetic control of the air-conditioning compressor needs a small weak magnetic angle to meet that the operating frequency reaches the target operating frequency, for example, the fourth adjustment angle can be set to 15 degrees.
In the embodiment of the disclosure, the fourth adjustment angle is smaller than the first adjustment angle, the first adjustment angle is smaller than the third adjustment angle, and the third adjustment angle is smaller than the second adjustment angle.
The following description will exemplify an air conditioner, and illustrates a control of a field weakening angle and an actual application in field weakening control of an air conditioner compressor according to the foregoing embodiments of the present disclosure.
Fig. 7 is a schematic diagram illustrating a method of air conditioner flux weakening angle control according to an exemplary embodiment.
Referring to fig. 7, in the embodiment of the disclosure, the weak magnetic judgment time threshold is 1 minute, the weak magnetic outer ring lower limit threshold is-10 degrees celsius, the weak magnetic outer ring upper limit threshold is 58 degrees celsius, the first frequency difference threshold is 10 hertz, the second frequency difference threshold is 5 hertz, the first adjustment angle is 20 degrees, the second adjustment angle is 35 degrees, the third adjustment angle is 25 degrees, and the fourth adjustment angle is 15 degrees.
In the embodiment of the disclosure, in the operation process of the air conditioner, the compressor is firstly operated in a constant power area, and when the actual demand of the air conditioner system is greater than the operation power provided by the current compressor, the operation frequency of the compressor is smaller than the target operation frequency, and the compressor cannot be operated to the target operation frequency. And meanwhile, other frequency limiting factors such as temperature, current and the like are avoided. At this time, the air conditioner compressor enters a field weakening control mode.
In the embodiment of the disclosure, the air conditioner compressor enters the weak magnetic control mode and starts to time to obtain the frequency weak magnetic limiting time. The frequency field weakening limiting time is used for judging the time of the air conditioner compressor entering the field weakening control mode. The time for the air conditioner compressor to enter the field weakening control mode and the field weakening judgment time threshold value are 1 minute, so that the air conditioner field weakening angle control can be started if the time for the air conditioner compressor to enter the field weakening control mode is more than 1 minute; if the time for the air conditioner compressor to enter the field weakening control mode is less than 1 minute, the air conditioner continues to operate.
In the embodiment of the disclosure, the air conditioner field weakening angle control is started to judge whether the outdoor environment temperature of the air conditioner compressor is between minus 10 ℃ and 58 ℃ which are preset. And if the outdoor environment temperature of the air conditioner compressor is in a preset temperature interval, performing field weakening control on the air conditioner compressor under normal load. If the outdoor environment temperature of the air conditioner compressor is not in the preset temperature interval, the air conditioner compressor is subjected to flux weakening control under lighter/heavier load.
In the embodiment of the disclosure, when the air conditioner compressor is judged to be under lighter/heavier load for flux weakening control, the air conditioner compressor needs to limit the increased flux weakening angle, so that the flux weakening control is prevented when the load is over heavy/light, the flux weakening angle is too large, and the situation that the torque becomes small to cause the air conditioner compressor to be out of control occurs. The weak magnetic angle of the air conditioner compressor is the current weak magnetic angle plus a first adjusting angle: 20 degrees.
In the embodiment of the disclosure, when the air conditioner compressor is judged to be under normal load for flux weakening control, the difference value between the operating frequency of the air conditioner compressor and the target operating frequency is continuously compared. When the difference between the operating frequency of the air conditioner compressor and the target operating frequency is greater than the first frequency difference threshold value by 10 Hz, the difference between the operating frequency of the air conditioner compressor and the target operating frequency is larger, and the angle to be increased is also larger. The weak magnetic angle of the air conditioner compressor is the current weak magnetic angle plus a second adjusting angle: 35 degrees.
In the embodiment of the disclosure, when the difference between the operating frequency of the air conditioner compressor and the target operating frequency is smaller than the first frequency difference threshold by 10 hz and larger than the second frequency difference threshold by 5 hz, the difference between the operating frequency of the air conditioner compressor and the target operating frequency is indicated to be in a medium size. The weak magnetic angle of the air conditioner compressor is the current weak magnetic angle plus a third adjusting angle: 25 degrees.
In the embodiment of the disclosure, when the difference between the operating frequency of the air conditioner compressor and the target operating frequency is smaller than the second frequency difference threshold value of 5 hz, it is indicated that the difference between the operating frequency of the air conditioner compressor and the target operating frequency is smaller, and the angle to be increased is also smaller. The weak magnetic angle of the air conditioner compressor is the current weak magnetic angle plus a fourth adjusting angle: 15 degrees.
Based on the same conception, the embodiment of the disclosure also provides an air conditioner field weakening angle control device.
It can be understood that, in order to achieve the above functions, the air conditioner flux weakening angle control device provided by the embodiment of the present disclosure includes a hardware structure and/or a software module that perform each function. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.
Fig. 8 is a block diagram illustrating an air conditioner flux weakening angle control device according to an exemplary embodiment. Referring to fig. 8, the apparatus includes an acquisition unit 101 and an adjustment unit 102.
The acquiring unit 101 is configured to acquire an operating frequency of the air conditioner compressor in response to the air conditioner entering the field weakening control mode, and monitor an outdoor environment temperature during operation of the air conditioner compressor.
The adjusting unit 102 is used for adjusting the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature.
In one embodiment, the adjusting unit 102 adjusts the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature in the following manner: if the operating frequency is smaller than the target operating frequency, determining the frequency flux weakening limit time corresponding to the air conditioner compressor after entering the flux weakening control mode; and adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature in response to the frequency field weakening limit time being greater than a preset field weakening judgment time threshold.
In another embodiment, the adjusting unit 102 adjusts the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature in the following manner: according to the operating frequency and the outdoor environment temperature, determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor; and increasing the angle adjustment amount on the current field weakening angle of the air conditioner compressor.
In another embodiment, the adjustment unit 102 determines the angle adjustment amount of the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature in the following manner: acquiring a preset upper limit threshold value of the weak magnetic outer ring and a preset lower limit threshold value of the weak magnetic outer ring; and determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor based on the field weakening outer ring upper limit threshold value, the field weakening outer ring lower limit threshold value, the target operating frequency, the operating frequency and the outdoor environment temperature.
In another embodiment, the adjustment unit 102 determines the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the field weakening outer ring upper limit threshold, the field weakening outer ring lower limit threshold, the target operating frequency, the operating frequency, and the outdoor environment temperature in the following manner: if the outdoor environment temperature is smaller than the lower limit threshold of the weak magnetic outer ring or the outdoor environment temperature is larger than the upper limit threshold of the weak magnetic outer ring, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a first adjustment angle; if the outdoor environment temperature is greater than or equal to the lower limit threshold value of the weak magnetic outer ring and is less than or equal to the upper limit threshold value of the weak magnetic outer ring, the angle adjustment amount of the weak magnetic angle of the air conditioner compressor is determined based on the difference value between the target operating frequency and the operating frequency.
In another embodiment, the adjustment unit 102 determines the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the difference between the target operation frequency and the operation frequency in the following manner: if the difference between the target operating frequency and the operating frequency is larger than the first frequency difference threshold, determining the angle adjustment amount of the field weakening angle of the air conditioner compressor as a second adjustment angle; if the difference between the target operating frequency and the operating frequency is smaller than the first frequency difference threshold and larger than the second frequency difference threshold, determining the angle adjustment amount of the field weakening angle of the air conditioner compressor as a third adjustment angle; if the difference value between the target operating frequency and the operating frequency is smaller than the second frequency difference value threshold value, determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor as a fourth adjustment angle; the fourth adjustment angle is smaller than the first adjustment angle, the first adjustment angle is smaller than the third adjustment angle, and the third adjustment angle is smaller than the second adjustment angle.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 9 is a block diagram illustrating an apparatus 200 for air conditioner flux weakening angle control according to an exemplary embodiment. For example, apparatus 200 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.
Referring to fig. 9, the apparatus 200 may include one or more of the following components: a processing component 202, a memory 204, a power component 206, a multimedia component 208, an audio component 210, an input/output (I/O) interface 212, a sensor component 214, and a communication component 216.
The processing component 202 generally controls overall operation of the apparatus 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 202 can include one or more modules that facilitate interactions between the processing component 202 and other components. For example, the processing component 202 may include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.
The memory 204 is configured to store various types of data to support operations at the apparatus 200. Examples of such data include instructions for any application or method operating on the device 200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 204 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power component 206 provides power to the various components of the device 200. The power components 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 200.
The multimedia component 208 includes a screen between the device 200 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 208 includes a front-facing camera and/or a rear-facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 200 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 210 is configured to output and/or input audio signals. For example, the audio component 210 includes a Microphone (MIC) configured to receive external audio signals when the device 200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 204 or transmitted via the communication component 216. In some embodiments, audio component 210 further includes a speaker for outputting audio signals.
The I/O interface 212 provides an interface between the processing assembly 202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 214 includes one or more sensors for providing status assessment of various aspects of the apparatus 200. For example, the sensor assembly 214 may detect the on/off state of the device 200, the relative positioning of the components, such as the display and keypad of the device 200, the sensor assembly 214 may also detect a change in position of the device 200 or a component of the device 200, the presence or absence of user contact with the device 200, the orientation or acceleration/deceleration of the device 200, and a change in temperature of the device 200. The sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 214 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 216 is configured to facilitate communication between the apparatus 200 and other devices in a wired or wireless manner. The device 200 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 204, including instructions executable by processor 220 of apparatus 200 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that "connected" includes both direct connection where no other member is present and indirect connection where other element is present, unless specifically stated otherwise.
It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.
Claims (7)
1. The weak magnetic angle control method of the air conditioner is characterized by comprising the following steps:
responding to the air conditioner entering a field weakening control mode, acquiring the operating frequency of the air conditioner compressor, and monitoring the outdoor environment temperature in the operation process of the air conditioner compressor;
According to the operating frequency and the outdoor environment temperature, adjusting the weak magnetic angle of the air conditioner compressor;
wherein, according to the operating frequency and the outdoor environment temperature, adjust the weak magnetism angle of air condition compressor includes:
if the operating frequency is smaller than the target operating frequency, determining the frequency flux weakening limit time corresponding to the air conditioner compressor after entering a flux weakening control mode;
responding to the frequency field weakening limit time being larger than a preset field weakening judgment time threshold value, and adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature;
wherein, based on the operating frequency and the outdoor environment temperature, adjust the weak magnetism angle of air condition compressor includes:
according to the operating frequency and the outdoor environment temperature, determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor;
and increasing the angle adjustment amount on the current field weakening angle of the air conditioner compressor.
2. The method of claim 1, wherein the determining the angle adjustment amount of the field weakening angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature comprises:
Acquiring a preset upper limit threshold value of the weak magnetic outer ring and a preset lower limit threshold value of the weak magnetic outer ring;
and determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor based on the weak magnetic outer ring upper limit threshold, the weak magnetic outer ring lower limit threshold, the target operating frequency, the operating frequency and the outdoor environment temperature.
3. The method of claim 2, wherein the determining the angle adjustment amount of the field weakening angle of the air conditioner compressor based on the field weakening outer ring upper limit threshold, the field weakening outer ring lower limit threshold, the target operating frequency, the operating frequency, and the outdoor ambient temperature comprises:
if the outdoor environment temperature is smaller than the weak magnetic outer ring lower limit threshold or the outdoor environment temperature is larger than the weak magnetic outer ring upper limit threshold, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a first adjustment angle;
and if the outdoor environment temperature is greater than or equal to the low-magnetic-flux-weakening outer ring lower limit threshold and is less than or equal to the low-magnetic-weakening outer ring upper limit threshold, determining the angle adjustment amount of the low-magnetic-flux-weakening angle of the air conditioner compressor based on the difference value between the target operating frequency and the operating frequency.
4. The method of claim 3, wherein the determining an angle adjustment amount of the field weakening angle of the air conditioner compressor based on a difference between the target operating frequency and the operating frequency comprises:
if the difference between the target operating frequency and the operating frequency is greater than a first frequency difference threshold, determining the angle adjustment amount of the field weakening angle of the air conditioner compressor as a second adjustment angle;
if the difference between the target operating frequency and the operating frequency is smaller than a first frequency difference threshold and larger than a second frequency difference threshold, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a third adjustment angle;
if the difference value between the target operating frequency and the operating frequency is smaller than a second frequency difference value threshold value, determining the angle adjustment amount of the weak magnetic angle of the air conditioner compressor as a fourth adjustment angle;
the fourth adjustment angle is smaller than the first adjustment angle, the first adjustment angle is smaller than the third adjustment angle, and the third adjustment angle is smaller than the second adjustment angle.
5. An air conditioner field weakening angle control device, characterized in that it performs the control method according to any one of claims 1-4, said device comprising:
The acquisition unit is used for responding to the air conditioner entering the field weakening control mode, acquiring the operating frequency of the air conditioner compressor and monitoring the outdoor environment temperature in the operating process of the air conditioner compressor;
the adjusting unit is used for adjusting the weak magnetic angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature;
the adjusting unit adjusts the weak magnetic angle of the air conditioner compressor according to the operating frequency and the outdoor environment temperature in the following mode:
if the operating frequency is smaller than the target operating frequency, determining the frequency flux weakening limit time corresponding to the air conditioner compressor after entering a flux weakening control mode;
responding to the frequency field weakening limit time being larger than a preset field weakening judgment time threshold value, and adjusting the field weakening angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature;
the adjusting unit adjusts the weak magnetic angle of the air conditioner compressor based on the operating frequency and the outdoor environment temperature in the following mode:
according to the operating frequency and the outdoor environment temperature, determining the angle adjustment quantity of the field weakening angle of the air conditioner compressor;
And increasing the angle adjustment amount on the current field weakening angle of the air conditioner compressor.
6. An air conditioner field weakening angle control device, which is characterized by comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: a method for performing the air conditioner flux weakening angle control as defined in any one of claims 1 to 4.
7. A storage medium having instructions stored therein which, when executed by a processor of a terminal, enable the terminal including the processor to perform the method of air conditioner flux weakening angle control according to any one of claims 1 to 4.
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