CN114459131B - Air conditioner control method, device, equipment and storage medium - Google Patents
Air conditioner control method, device, equipment and storage medium Download PDFInfo
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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
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. 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
- F24F11/89—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- 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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
-
- 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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Abstract
The invention discloses an air conditioner control method, an air conditioner control device, air conditioner control equipment and a storage medium, wherein the method comprises the steps of firstly judging whether the compressor frequency of a compressor is in a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of a driving motor; and if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor according to a preset rule so as to control the air conditioner not to generate beat frequency. The technical problem of poor beat frequency noise suppression effect is solved, and the technical effect of improving the beat frequency noise suppression effect is achieved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, device, equipment and storage medium.
Background
The air conditioner outdoor unit has two noise sources, namely an air duct system and a compressor system, and discontinuous beat vibration noise can be generated when the rotating noise peak value of a fan is close to the noise peak value of the compressor, so that noise pollution is formed. Therefore, it is necessary to suppress the beat image.
The conventional method for inhibiting beat vibration controls the frequency multiplication of a compressor to be equal to the frequency multiplication of a fan by adjusting the rotating speed of the fan, so that beat vibration is inhibited. However, the inventors of the present application have found that the above-mentioned techniques have at least the following technical problems: the suppression effect on beat vibration noise is poor.
Disclosure of Invention
The embodiment of the application provides an air conditioner control method, device, equipment and storage medium, solves the technical problem that the beat vibration noise suppression effect of the beat vibration suppression method in the prior art is poor, and achieves the technical effect of improving the beat vibration noise suppression effect.
The embodiment of the application provides an air conditioner control method, wherein the air conditioner comprises a compressor and a fan, and the fan is connected with a driving motor; the air conditioner control method includes:
judging whether the compressor frequency of the compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor;
and if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor according to a preset rule so as to control the air conditioner not to generate beat frequency.
Optionally, the preset beat frequency interval includes a first sub-frequency interval, and the first sub-frequency interval is obtained based on the first target platform rotation speed.
Optionally, the preset rule includes: the motor rotating speed and the compressor frequency meet a preset relational expression;
if the compressor frequency is within the preset beat frequency interval, adjusting the motor speed of the driving motor according to a preset rule, specifically including:
and if the frequency of the compressor is within the first sub-frequency interval, adjusting the motor rotating speed of the driving motor based on the preset relational expression.
Optionally, the preset rule further includes: the first exhaust temperature of the compressor and a first safety temperature threshold value meet a preset size relation;
if the compressor frequency is within the first sub-frequency interval, adjusting the motor speed of the driving motor based on the preset relational expression, specifically including:
and if the compressor frequency is in the first sub-frequency interval, adjusting the motor rotating speed of the driving motor based on the preset size relation and the preset relational expression.
Optionally, if the compressor frequency is within the first sub-frequency interval, adjusting the motor rotation speed of the driving motor based on the preset relational expression specifically includes:
if the frequency of the compressor is increased or decreased to enter the first sub-frequency interval, within the first sub-frequency interval, the motor speed of the motor is adjusted based on one of the following relational expressions:
wherein p is the motor rotation speed; f is the compressor frequency; n is a radical of hydrogen 1 ,N 2 The beat frequency peak frequency multiplication order of the compressor and the driving motor, N 1 >N 2 ，x＝3～10。
Optionally, the first sub-frequency interval is:
[NP 0 -x,NP 0 +x]wherein P is 0 Is a first target platform speed for the drive motor,
x＝3～10。
optionally, the first sub-frequency interval includes:
[NP 0 -x,f x ]and [ f x ,NP 0 +x]Wherein f is x Is a preset intermediate beat frequency.
Optionally, after determining whether the compressor frequency of the compressor is within the preset beat frequency interval, the method further includes:
and if the frequency of the compressor is increased or decreased to exceed the range of the preset beat frequency interval, adjusting the rotating speed of the motor of the driving motor to enter the rotating speed of the first target platform.
Optionally, the driving motor further includes a plurality of second target platform rotation speeds, and the preset beat frequency interval further includes a plurality of second sub-frequency intervals;
if the compressor frequency is within the preset beat frequency interval, adjusting the motor speed of the driving motor based on a preset rule, specifically including:
if the compressor frequency is in the first sub-frequency interval or the second sub-frequency interval, acquiring the exhaust temperature of the compressor;
controlling the motor rotating speed of the driving motor to enter a selected target platform rotating speed in a target platform rotating speed set according to the size relation between the exhaust temperature and a second safety temperature threshold; wherein the set of target platform rotational speeds includes the first target platform rotational speed and the plurality of second target platform rotational speeds.
Optionally, the plurality of second target platform rotation speeds comprises: p 1 ,P 2 ,...,P n Wherein n is a positive integer greater than or equal to 2;
the plurality of second sub-frequency bins include: [ NP ] i -x,NP i +x]Wherein i =1,2, ·, n,
N 1 ,N 2 the beat frequency peak value frequency multiplication orders of the compressor and the driving motor are respectively, and x = 3-10;
the second safe temperature threshold comprises: t is 1 ,T 2 ,...,T m And m is a positive integer of 2 or more.
Further, to achieve the above object, based on the same inventive principle, another embodiment of the present application provides an air conditioning control device including:
the judging module is used for judging whether the compressor frequency of the compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor;
and the adjusting module is used for adjusting the motor rotating speed of the driving motor according to a preset rule if the frequency of the compressor is within the preset beat frequency interval so as to control the air conditioner not to generate beat frequency.
Further, to achieve the above object, the present application also provides a computer-readable storage medium having stored thereon an air conditioning control program that, when executed by a processor, implements the foregoing method.
In addition, to achieve the above object, the present application further provides an apparatus including a memory, a processor, and an air conditioning control program stored on the memory and executable on the processor, wherein the processor implements the foregoing method when executing the air conditioning control program.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the application provides an air conditioner control method, an air conditioner control device, air conditioner control equipment and a storage medium, wherein the air conditioner control method comprises the steps of firstly judging whether the compressor frequency of a compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of a driving motor; and if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor according to a preset rule so as to control the air conditioner not to generate beat frequency. Therefore, the beat frequency is suppressed by adjusting the rotating speed of the motor, and the frequency of the fan is the frequency multiplication of the motor frequency, so that the fan frequency which is used as the frequency multiplication of the motor frequency cannot generate the beat frequency with the compressor frequency as long as the frequency of the motor is controlled according to the preset rule within the preset beat frequency interval, and compared with the existing beat frequency judgment and control which are realized through the compressor frequency and the fan frequency, the beat frequency generated by the frequency of the motor and the compressor frequency is not considered, the technical problem that the beat frequency noise suppression effect is poor is solved, and the technical effect of improving the beat frequency noise suppression effect is achieved.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of an air conditioner control method according to the present invention;
FIG. 2 is a schematic flow chart illustrating an air conditioning control method according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of an air conditioning control device according to the present invention.
Detailed Description
The embodiment of the application provides an air conditioner control method, a beat frequency is suppressed by adjusting a rotating speed of a motor, and as a frequency of a fan is a frequency multiplication of the motor frequency, as long as the frequency of the motor is controlled according to a preset rule within a preset beat frequency interval and does not generate the beat frequency with a compressor frequency, the fan frequency which is used as the frequency multiplication of the motor frequency cannot generate the beat frequency with the compressor.
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
The embodiment provides an air conditioner control method for restraining the 'beat vibration' phenomenon generated by an air conditioner outdoor unit.
It is understood that the outdoor unit of the air conditioner generally includes at least a compressor and a fan, and the fan is connected to a driving motor, and the driving motor drives the fan to rotate. Therefore, the fan and the motor have certain rotation noise values when running. When the fan rotation noise peak (or the driving motor) is close to the compressor noise peak, discontinuous beat vibration noise can be generated, and noise pollution is formed. Therefore, suppression of the beat vibration phenomenon is required.
Referring to fig. 1, the air conditioner control method of the present embodiment includes:
s10, judging whether the compressor frequency of the compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor;
and S20, if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor according to a preset rule so as to control the air conditioner not to generate beat frequency.
Note that the "beat" in the present embodiment may also be referred to as a beat frequency. Under normal conditions, when the variable frequency air conditioner is started to operate, the operating frequency of the compressor faces to the set target platform frequency f according to the ambient temperature 0 Approach toThe rotational speed of the drive motor of the fan will also approach the target platform rotational speed. In this embodiment, in order to avoid beat frequency in normal operation, a target platform frequency f set by the compressor operation frequency is assumed 0 Then the first target platform rotation speed
I.e., the first target platform speed is maintained at a multiple of the target platform frequency of the compressor to avoid beat frequencies.
However, in practice, after a period of operation, when the temperature of the air conditioner is reset by the user, the air conditioner will operate the compressor from the original f according to the ambient temperature and the user-set temperature 0 The frequency up-down is started. In this process, then beating may occur. At this time, the method of the present embodiment needs to be executed to control the air conditioner.
The execution process of each step is specifically described below with reference to fig. 1.
Firstly, S10 is executed, and whether the compressor frequency of the compressor is within a preset beat frequency interval is determined based on the compressor frequency of the compressor and the first target platform rotation speed of the driving motor.
In the specific implementation process, the first target platform rotating speed is p 0 (ii) a The preset beat frequency interval is a compressor frequency interval in which beat frequency may occur, and may be obtained through historical beat frequency monitoring data of the air conditioner, or may be obtained based on the first target platform rotation speed.
As an optional implementation manner, the preset beat frequency interval includes a first sub-frequency interval, and the first sub-frequency interval is obtained based on the first target platform rotation speed.
Specifically, the first sub-frequency interval is:
[NP 0 -x,NP 0 +x]wherein, P 0 Is a first target platform speed for the drive motor,
x＝3～10。
wherein N is 1 ,N 2 The beat frequency peak frequency multiplication order of the compressor and the driving motor, N 1 >N 2 N is also the frequency multiplication order; and x is a frequency band width coefficient, and is set according to the actual beat frequency historical conditions of different products, and is generally taken between 3 and 10. As can be appreciated, NP 0 The frequency of the compressor is represented as the frequency multiplication of the rotating speed of the first target platform, and within the fluctuation range of the frequency band width coefficient, the frequency of the compressor is close to the frequency multiplication of the driving motor, and the beat frequency is most likely to occur.
Further, as another embodiment, the first sub-frequency interval includes:
[NP 0 -x,f x ]and [ f x ,NP 0 +x]Wherein f is x Is a preset intermediate beat frequency.
In the specific implementation, f x Taking values within a beat control interval, f x The value can be taken according to the actual heat exchange performance of the air conditioner and the performance of the compressor.
And then, executing S20, and if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor according to a preset rule so as to control the air conditioner not to generate beat frequency.
In a specific implementation process, the preset rule may be set according to historical data of the air conditioner, for example, the motor rotation speed and the compressor frequency are set to satisfy a preset relational expression as long as the air conditioner does not generate beat frequency.
As an alternative embodiment, the preset rule includes: the motor rotating speed and the compressor frequency meet a preset relational expression; the preset beat frequency interval comprises a first sub-frequency interval;
correspondingly, if the compressor frequency is within the preset beat frequency interval, adjusting the motor speed of the driving motor according to a preset rule, specifically including:
and if the frequency of the compressor is within the first sub-frequency interval, adjusting the motor rotating speed of the driving motor based on the preset relational expression.
Specifically, the preset relational expression includes:
wherein p is the motor rotation speed; f is the compressor frequency; n is a radical of 1 ,N 2 The beat frequency peak frequency multiplication order of the compressor and the driving motor, N 1 >N 2 ，x＝3～10。
As can be seen from the above relation, the motor speed and the compressor frequency in the present embodiment are linked, that is, the motor speed is adjusted in real time along with the change of the compressor frequency, so as to realize "wind frequency linkage".
Generally, the compressor frequency is continuously varied according to the set temperature and the ambient temperature, and thus, the compressor frequency may be up-converted or down-converted into the first sub-frequency interval. Therefore, if the compressor frequency is within the first sub-frequency interval, adjusting the motor speed of the driving motor based on the preset relational expression specifically includes:
entering the first sub-frequency interval [ NP ] if the compressor frequency is up-converted or down-converted 0 -x,NP 0 +x]In the preset beat frequency interval, the motor speed of the motor is adjusted based on one of the following relations:
it should be noted that, in this embodiment, different relations may be selected according to the frequency of the compressor ascending or descending into the first sub-frequency interval.
Specifically, the frequency of the compressor is increased or decreased into the first sub-frequency interval, and the above relations may be arranged and combined, for example:
when the frequency of the compressor is reduced to enter the first sub-frequency interval, the rotating speed of the motor is at the moment
When the frequency of the compressor is increased to enter the first sub-frequency interval, the rotating speed of the motor is increased
Or the like, or a combination thereof,
when the frequency of the compressor is reduced to enter the first sub-frequency interval, the rotating speed of the motor is at the moment
When the frequency of the compressor is increased to enter the first sub-frequency interval, the rotating speed of the motor is increased
It should be noted that the permutation and combination forms herein are not listed, but do not represent that there are no other combination forms.
Further, it is mentioned in S10 that the first sub-frequency interval may include: [ NP ] 0 -x,f x ]And [ f x ,NP 0 +x]Wherein f is x Is a preset intermediate beat frequency.
At this time, if the compressor frequency is within the first sub-frequency interval, adjusting the motor rotation speed of the driving motor based on the preset relational expression specifically includes:
entering the first sub-frequency interval [ NP ] if the compressor frequency is up-converted or down-converted 0 -x,f x ]Or [ f x ,NP 0 +x]In the preset beat frequency interval, the motor speed of the motor is adjusted based on one of the following relations:
for example:
suppose for a certain air conditioner, P 0 =15 revolutions/sec, x =7.
According to the system performance and noise performance of the air conditioner, the beat frequency peak value of a driving motor and a compressor is assumed to be dividedOf 6 and 1 multiples, i.e. N 2 ＝1，N 1 =6, then
Presetting an intermediate beat frequency f x ＝NP 0 -3。
When the running frequency of the compressor enters the interval [6P ] 0 -7,6P 0 -3]Rotational speed of motor
Namely, the motor rotating speed is in the interval (83, 87)
When the running frequency of the compressor enters the interval [6P ] 0 -3,6P 0 +7]Rotational speed of motor
Namely, the rotating speed of the motor is in the interval (87, 97)
It follows that if the reliability margin of the air conditioner is large, the compressor frequency goes to NP 0 -x,f x ]In the interval, the rotating speed of the driving motor is synchronously increased or decreased along with the frequency of the compressor, so that the stability of the system is better; when the running frequency of the compressor is more than f x Control logic can be predetermine according to the air conditioner actual noise condition afterwards, and control logic in this embodiment reduces for motor speed relatively, and at this moment, the fan noise also can reduce, is favorable to reducing the whole noise level of air conditioner. Therefore, the technical scheme of the embodiment reasonably presets f x And different control logics are adopted in each interval, so that system reliability and noise comfort can be better considered.
For another example:
suppose for a certain air conditioner, P 0 =15 revolutions/sec, x =6;
according to the system performance and noise performance of the air conditioner, it is assumed that the motor is drivenAnd the beat frequency peak value of the compressor is 6 times frequency and 1 time frequency respectively, namely N 2 ＝1，N 1 =6, then
Presetting an intermediate beat frequency f x ＝NP 0 ；
When the running frequency of the compressor enters the interval [6P ] 0 -6,6P 0 ]Rotational speed of motor
Namely, the motor rotating speed is in the interval (84, 90)
Respectively corresponding to the rotating speeds (15, 16);
when the running frequency of the compressor enters the interval [6P ] 0 ,6P 0 +6]Rotational speed of motor
Namely, the rotating speed of the motor is in the interval (90, 96)
Corresponding to the rotating speeds (14, 15) respectively.
Therefore, no matter the frequency of the compressor is increased or decreased to enter the control interval, the rotating speed of the motor is slowly decreased to 14 revolutions/second from the original platform rotating speed of 15 revolutions/second and then is slowly increased to 15 revolutions/second until the frequency of the compressor is out of the interval [ NP ] 0 -x,NP 0 +x]Therefore, the fluctuation of the rotating speed of the motor is minimum, the reliability of the motor is better, and the accuracy and the control precision of the wind frequency linkage response are best.
In another embodiment, the preset rule further comprises: the first exhaust temperature of the compressor and the first safety temperature threshold value meet a preset size relation;
if the compressor frequency is within the first sub-frequency interval, adjusting the motor speed of the driving motor based on the preset relational expression, specifically including:
and if the compressor frequency is in the first sub-frequency interval, adjusting the motor rotating speed of the driving motor based on the preset size relation and the preset relational expression.
In a specific implementation process, the first safe temperature threshold value is a safe operation temperature value set according to the air conditioner public. The first safe temperature threshold may include one or more. The relationship between the discharge temperature of the compressor and the safety temperature threshold may also be taken into account on the basis of the adjustment of the drive motor according to the preceding embodiment.
For example:
suppose for a certain air conditioner, P 0 =15 revolutions/sec, x =6;
according to the system performance and noise performance of the air conditioner, the beat frequency peak values of the driving motor and the compressor are assumed to be 6 frequency doubling and 1 frequency doubling respectively, namely N 2 ＝1，N 1 =6, then
While monitoring the compressor discharge temperature T. Presetting two first safety temperature standard values, T 1 And T 2 And T is 2 >T 1 。
When the running frequency of the compressor is increased to enter the interval NP 0 -x,NP 0 +x]Meanwhile, the exhaust temperature sensing bulb feeds back a temperature value T;
when T is<T 1 Time, motor speed
I.e. the motor operating speed range [13, 15 ]]；
When T is 1 <T<T 2 Time, motor speed
I.e. the motor operating speed range [14, 16 ]]；
When T is>T 2 At the motor speed
I.e. the motor operating speed range [15, 16 ]]。
According to the technical scheme of the embodiment, the pressure and the reliability of the system are judged according to different exhaust temperatures, different control schemes are adopted according to different system pressures, and the reliability of the air conditioner is considered preferentially on the premise of ensuring that beat frequency noise is not generated; and secondly, a smaller motor rotating speed control scheme is preferentially adopted under the condition that the exhaust temperature is not high and the system reliability margin is large, and the noise level of the whole machine is considered.
In addition, in an embodiment, if the frequency of the compressor is increased or decreased beyond the range of the preset beat frequency interval, the rotation speed of the motor of the driving motor is adjusted to enter the first target platform rotation speed.
In the specific implementation process, the frequency of the compressor is increased or decreased beyond the range of the preset beat frequency interval, and the running frequency of the compressor is slowly close to be finally equal to the preset frequency f of the platform 0 The motor speed is changed back to the first target platform speed P 0 。
Therefore, the technical scheme in the embodiment of the present application at least has the following technical effects or advantages:
the beat frequency is suppressed by adjusting the rotating speed of the motor, and because the frequency of the fan is the frequency multiplication of the motor frequency, the fan frequency which is used as the frequency multiplication of the motor frequency cannot generate the beat frequency with the compressor as long as the frequency of the motor is controlled according to the preset rule within the preset beat frequency interval, and the beat frequency cannot be generated with the compressor.
In addition, by subdividing the beat frequency interval and considering the exhaust temperature, the stability of the operation of the air conditioner is considered and the non-beat frequency noise pollution of the whole machine is avoided on the basis of inhibiting the beat frequency.
Example two
On the basis of the foregoing embodiment, the driving motor of this embodiment further includes a plurality of second target platform rotation speeds, and the preset beat frequency interval further includes a plurality of second sub-frequency intervals;
if the compressor frequency is within the preset beat frequency interval, adjusting the motor speed of the driving motor based on a preset rule, specifically including:
s201, if the frequency of the compressor is in the first sub-frequency interval or the second sub-frequency interval, acquiring the exhaust temperature of the compressor;
s202, controlling the motor rotating speed of the driving motor to enter a selected target platform rotating speed in a target platform rotating speed set according to the size relation between the exhaust temperature and a second safety temperature threshold value; wherein the set of target platform rotational speeds includes the first target platform rotational speed and the plurality of second target platform rotational speeds.
It should be noted that the second target platform rotation speed and the first target platform rotation speed in this embodiment are only named for convenience of description, and are not limited to be different from the first target platform rotation speed. It is understood that the set of target platform speeds includes a plurality of target platform speeds, including the second target platform speed and the first target platform speed.
Please refer to fig. 2.
First, step S201 is executed to obtain the discharge temperature of the compressor if the compressor frequency is within the first sub-frequency interval or the second sub-frequency interval.
In the specific implementation process, under normal conditions, when the variable frequency air conditioner is started to operate, the operating frequency of the compressor faces to the set target platform frequency f according to the ambient temperature 0 And when the target platform rotation speed is close, the rotation speed of the driving motor of the fan is close to the target platform rotation speed. Since the present embodiment includes a plurality of second sub-frequency intervals and a first sub-frequency interval, the compressor frequency may be switched between the first sub-frequency interval and the plurality of second sub-frequency intervals during the frequency increasing or decreasing process.
Therefore, in order to optimize the performance of the air conditioner, the discharge temperature of the compressor is acquired first.
Next, executing S202, and controlling the motor rotating speed of the driving motor to enter a selected target platform rotating speed in a target platform rotating speed set according to the magnitude relation between the exhaust temperature and a second safety temperature threshold value; wherein the set of target platform rotational speeds includes the first target platform rotational speed and the plurality of second target platform rotational speeds.
In a specific implementation, the second safety temperature threshold may include a plurality of second safety temperature thresholds, and the motor speed of the driving motor is controlled to enter a selected target platform speed in the target platform speed set according to a factoring relationship between the exhaust temperature and the plurality of second safety temperature thresholds.
Specifically, the plurality of second target platform rotation speeds include: p 1 ,P 2 ,...,P n Wherein n is a positive integer greater than or equal to 2;
the plurality of second sub-frequency bins include: [ NP ] i -x,NP i +x]Wherein i =1,2, ·, n,
N 1 ,N 2 the beat frequency peak value frequency multiplication orders of the compressor and the driving motor are respectively, and x = 3-10;
the second safe temperature threshold comprises: t is 1 ',T 2 ',...,T m ', m is a positive integer of 2 or more.
In the specific implementation process, after the air conditioner is operated for a period of time, the temperature is set by a user according to the ambient temperature, and the compressor starts to work from the original f 0 Starting the frequency up-down until the compressor frequency f enters P 0 Control interval [ NP 0 -x,NP 0 +x]。
At the moment, obtaining a feedback temperature value T' of the exhaust temperature sensing bulb;
when T'>T 1 At' time, the motor enters the platform rotation speed P 1 (ii) a Presetting motor platform rotation speed NP 1 >NP 0 + x; the compressor continues to increase or decrease the frequency and enters P 1 Control interval [ NP ] 1 -x,NP 1 +x]. Such a situation includes: when T'>T 2 When the motor enters the platform rotating speed P 3 (ii) a Presetting motor platform rotation speed NP 3 >NP 1 + x; when T'<T 2 When the motor is runningPlatform entering rotating speed P 1 ；
When T'<T 1 At' time, the motor enters the platform rotation speed P 2 (ii) a Presetting motor platform rotation speed NP 2 >NP 0 -x; the compressor continues to increase or decrease the frequency and enters P 2 Control interval of [ NP ] 2 -x,NP 2 +x]；
When T'>T 3 At' time, the motor enters the platform rotation speed P 0 ；
When T'<T 3 At' time, the motor enters the platform rotation speed P 4 (ii) a Presetting motor platform rotation speed NP 4 >NP 2 -x。
And so on, according to the actual environment temperature and the temperature set by the user, the actual rotating speed of the motor can be at a plurality of platform rotating speeds (P) in the process of frequency increasing and decreasing of the compressor 0 ,P 1 ,P 2 ,...,P n ) Until the system gradually tends to balance, and the compressor returns to the platform operating frequency f 0 Rotational speed of motor platform P 0 。
It should be noted that, embodiments that are not described in this embodiment can all refer to the first embodiment, and are not described here again.
Therefore, the technical solution in the embodiment of the present application at least has the following technical effects or advantages:
the method of the embodiment presets the revolution number P of a plurality of motor platforms 0 ,P 1 ,P 2 ,...,P n (turn/second), the motor rotating speed is comprehensively controlled by combining a beat frequency noise formula and the compressor exhaust temperature T', the influence on the capacity is reduced to the maximum extent, the effect of suppressing beat frequency noise can be achieved, and the control logic is simple and easy to realize.
Based on the same inventive concept, the embodiment of the application also provides an air conditioner control device corresponding to the method in the first embodiment, which is shown in the third embodiment.
EXAMPLE III
The embodiment provides an air conditioner control device, wherein an air conditioner comprises a compressor and a fan, and the fan is connected with a driving motor; referring to fig. 3, the air conditioning control apparatus includes:
the judging module is used for judging whether the compressor frequency of the compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor;
and the adjusting module is used for adjusting the motor rotating speed of the driving motor according to a preset rule if the frequency of the compressor is within the preset beat frequency interval so as to control the air conditioner not to generate beat frequency.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the air conditioner control device of the embodiment firstly judges whether the compressor frequency of the compressor is within a preset beat frequency interval or not through a judging module based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor; and if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor by using an adjusting module according to a preset rule so as to control the air conditioner not to generate beat frequency. Therefore, the beat frequency is suppressed by adjusting the rotating speed of the motor, and because the frequency of the fan is the frequency multiplication of the motor frequency, as long as the frequency of the motor is controlled according to the preset rule within the preset beat frequency interval and does not generate the beat frequency with the compressor frequency, the fan frequency which is used as the frequency multiplication of the motor frequency cannot generate the beat frequency with the compressor.
Since the apparatus described in the third embodiment of the present invention is an apparatus used for implementing the method of the first embodiment of the present invention, based on the method described in the first embodiment of the present invention, a person skilled in the art can understand the specific structure and the deformation of the apparatus, and thus the details are not described herein. All the devices adopted in the method of the first embodiment of the present invention belong to the protection scope of the present invention.
Further, based on the same inventive concept, embodiments of the present application also provide a computer-readable storage medium having stored thereon an air conditioning control program that, when executed by a processor, implements the aforementioned method.
In addition, based on the same inventive concept, embodiments of the present application also provide an apparatus including a memory, a processor, and an air conditioning control program stored on the memory and executable on the processor, wherein the processor implements the aforementioned method when executing the air conditioning control program.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The air conditioner control method is characterized in that the air conditioner comprises a compressor and a fan, and the fan is connected with a driving motor; the air conditioner control method includes:
judging whether the compressor frequency of the compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor;
if the frequency of the compressor is within the preset beat frequency interval, adjusting the motor rotating speed of the driving motor according to a preset rule so as to control the air conditioner not to generate beat frequency;
the preset beat frequency interval comprises a first sub-frequency interval, and the first sub-frequency interval is obtained based on the rotating speed of the first target platform; the preset rules include: the motor rotating speed and the compressor frequency meet a preset relational expression;
if the compressor frequency is within the preset beat frequency interval, adjusting the motor speed of the driving motor according to a preset rule, specifically comprising:
if the frequency of the compressor is increased or decreased to enter the first sub-frequency interval, in the first sub-frequency interval, the motor rotating speed of the driving motor is adjusted based on one of the following relational expressions:
wherein,
the motor rotating speed;
is the compressor frequency;
the beat frequency peak value frequency multiplication orders of the compressor and the driving motor respectively,
，
；
the first sub-frequency interval is:
2. the method of claim 1, wherein the preset rules further comprise: the first exhaust temperature of the compressor and the first safety temperature threshold value meet a preset size relation;
if the compressor frequency is within the first sub-frequency interval, adjusting the motor speed of the driving motor based on the preset relational expression, specifically including:
and if the compressor frequency is in the first sub-frequency interval, adjusting the motor rotating speed of the driving motor based on the preset size relation and the preset relational expression.
3. The method of claim 1, wherein the first sub-frequency bin comprises:
4. The method of claim 1, wherein after determining whether the compressor frequency of the compressor is within a preset beat frequency interval, the method further comprises:
and if the frequency of the compressor is increased or decreased to exceed the range of the preset beat frequency interval, adjusting the rotating speed of the motor of the driving motor to enter the rotating speed of the first target platform.
5. The method of claim 1, wherein the drive motor further comprises a second plurality of target platform speeds, and wherein the preset beat frequency interval further comprises a second plurality of sub-frequency intervals;
if the compressor frequency is within the preset beat frequency interval, adjusting the motor speed of the driving motor based on a preset rule, specifically including:
if the compressor frequency is in the first sub-frequency interval or the second sub-frequency interval, acquiring the exhaust temperature of the compressor;
controlling the motor rotating speed of the driving motor to enter a selected target platform rotating speed in a target platform rotating speed set according to the size relation between the exhaust temperature and a second safety temperature threshold; wherein the set of target platform rotational speeds includes the first target platform rotational speed and the plurality of second target platform rotational speeds.
6. The method of claim 5, wherein the plurality of second target platform speeds comprises:
wherein n is a positive integer greater than or equal to 2;
the plurality of second sub-frequency bins include:
wherein
，
，
the beat frequency peak value frequency multiplication orders of the compressor and the driving motor respectively,
；
the second safe temperature threshold comprises:
and m is a positive integer of 2 or more.
7. The air conditioner control device is characterized in that the air conditioner comprises a compressor and a fan, and the fan is connected with a driving motor; the air conditioner control device includes:
the judging module is used for judging whether the compressor frequency of the compressor is within a preset beat frequency interval or not based on the compressor frequency of the compressor and the first target platform rotating speed of the driving motor;
the adjusting module is used for adjusting the motor rotating speed of the driving motor according to a preset rule if the frequency of the compressor is within the preset beat frequency interval so as to control the air conditioner not to generate beat frequency;
the preset beat frequency interval comprises a first sub-frequency interval, and the first sub-frequency interval is obtained based on the rotating speed of the first target platform; the preset rules include: the motor rotating speed and the compressor frequency meet a preset relational expression;
the adjustment module is further configured to: if the frequency of the compressor is increased or decreased to enter the first sub-frequency interval, the motor speed of the motor is adjusted in the first sub-frequency interval based on one of the following relational expressions:
wherein,
the motor rotating speed;
is the compressor frequency;
the beat frequency peak value frequency multiplication orders of the compressor and the driving motor respectively,
，
；
the first sub-frequency interval is:
8. a computer-readable storage medium, on which an air conditioning control program is stored, characterized in that the air conditioning control program, when executed by a processor, implements the method of any one of claims 1 to 6.
9. An apparatus comprising a memory, a processor, and an air conditioning control program stored on the memory and executable on the processor, the processor implementing the method of any of claims 1-6 when executing the air conditioning control program.
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| CN202011250438.7A CN114459131B (en) | 2020-11-10 | 2020-11-10 | Air conditioner control method, device, equipment and storage medium |
| PCT/CN2021/106389 WO2022100129A1 (en) | 2020-11-10 | 2021-07-15 | Air-conditioner control method, apparatus, device, and storage medium |
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| JP2783065B2 (en) * | 1992-06-17 | 1998-08-06 | ダイキン工業株式会社 | Operation control device for air conditioner |
| KR20050074706A (en) * | 2004-01-14 | 2005-07-19 | 엘지전자 주식회사 | Control method of the invert compressor of a multi-type air conditioner |
| JP4042787B2 (en) * | 2006-02-17 | 2008-02-06 | ダイキン工業株式会社 | Rotational speed control device, air conditioner, and rotational speed control method |
| JP5804774B2 (en) * | 2011-05-30 | 2015-11-04 | 三菱電機株式会社 | Refrigeration cycle equipment |
| CN106016625B (en) * | 2016-07-01 | 2019-08-02 | 海信（山东）空调有限公司 | Frequency converting air-conditioner compressor and fan clap the control method and device of vibration |
| CN107101270B (en) * | 2017-05-12 | 2020-04-17 | 广东美的制冷设备有限公司 | Control method, control device and computer readable storage medium for air conditioner |
| CN108386973A (en) * | 2018-03-05 | 2018-08-10 | 奥克斯空调股份有限公司 | Outdoor machine of air-conditioner control method and device |
| CN108548269B (en) * | 2018-03-31 | 2020-09-25 | 青岛海尔空调器有限总公司 | Air conditioner control method |
| CN111197843A (en) * | 2018-10-30 | 2020-05-26 | 日立江森自控空调有限公司 | A kind of air-conditioning fan control method and its system and air-conditioning |
| CN109915990B (en) * | 2019-02-22 | 2020-10-09 | 珠海格力电器股份有限公司 | Method and device for controlling fan and air conditioning system |
| CN111854086A (en) * | 2019-04-26 | 2020-10-30 | 青岛海尔空调器有限总公司 | Control method and device of variable frequency air conditioner and variable frequency air conditioner |
| CN110529938B (en) * | 2019-09-05 | 2020-10-20 | 珠海格力电器股份有限公司 | Control method and control device for preventing beat vibration of multi-noise-source equipment |
| CN110848932B (en) * | 2019-11-26 | 2021-05-28 | 广东美的制冷设备有限公司 | Air conditioner, air conditioner control method and device and readable storage medium |
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