CN109114729B - Air conditioner control method and air conditioner - Google Patents
Air conditioner control method and air conditioner Download PDFInfo
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- CN109114729B CN109114729B CN201810835129.2A CN201810835129A CN109114729B CN 109114729 B CN109114729 B CN 109114729B CN 201810835129 A CN201810835129 A CN 201810835129A CN 109114729 B CN109114729 B CN 109114729B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims description 96
- 238000005057 refrigeration Methods 0.000 claims description 48
- 238000001816 cooling Methods 0.000 claims description 16
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 238000012797 qualification Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- 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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- Air Conditioning Control Device (AREA)
Abstract
An air conditioner control method comprising: setting an operation mode; running until the first running period is finished; judging whether the indoor fan works at a high wind gear or not; if so, judging the outdoor environment temperature interval and controlling the compressor to operate by taking the first limit frequency corresponding to the outdoor environment temperature interval as a target frequency; if the air conditioner works in a middle wind gear or a low wind gear, judging whether the real-time outdoor environment temperature exceeds an outdoor environment temperature threshold corresponding to the running mode of the air conditioner; if the outdoor environment temperature exceeds the preset temperature limit value, judging the outdoor environment temperature interval, and controlling to operate at a first limit frequency corresponding to the outdoor environment temperature interval; if the current wind speed is not higher than the preset wind speed limit, the temperature interval of the outdoor environment is judged, the current wind speed weight is called, and the compressor is controlled to operate by taking the second limit frequency as the target frequency. An air conditioner is also disclosed. The invention intelligently optimizes the energy consumption of the compressor and achieves the balance among the human body comfort level, the energy consumption of the compressor and the outdoor environment temperature.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air conditioner control method and an air conditioner.
Background
The compressor is an important component of a refrigeration system of the air conditioner, and the motor rotor drives the compressor to rotate. The refrigerant in the compressor cylinder is compressed. The refrigerant compressed by the compressor performs a cycle in the air conditioner refrigeration system in the order of compression, condensation, expansion, and evaporation. Meanwhile, the refrigerant circulating in the refrigerating system exchanges heat with air flowing indoors to cool/heat indoors, so that the refrigerating/heating operation of the air conditioner is realized, the indoor temperature is kept at the temperature required by a user, and a fresh and comfortable air environment is provided for people.
The operation of the compressor is closely related to the overall power consumption and comfort of the air conditioner. How to achieve the balance between the whole power consumption and the comfort level is a bottleneck restricting the intelligent development of the air conditioner. In order to improve the intelligent degree of air conditioner control, some technical solutions are provided in the prior art, such as the technical solution disclosed in the chinese patent application (publication No. CN 106642592A), which includes the following steps: firstly, the temperature of a room where the air conditioner is located is collected, then the temperature of the room is compared with the temperature set by a user, the rotating speed of the fan is adjusted according to the comparison result, and the running frequency of the compressor is further controlled according to the rotating speed of the fan. Because in the current control mode, the control on the rotating speed of the fan is not accurate, the fan is usually controlled to work at a certain gear, correspondingly, in the technical scheme, the operation frequency of the compressor is controlled to be kept at a certain gear according to the wind speed, the actual control on the operation frequency of the compressor is inaccurate, and the actual working condition of the compressor cannot be responded.
Disclosure of Invention
In order to solve the above problems, the present invention discloses a control method for an air conditioner. The method comprises the following steps:
setting an air conditioner operation mode;
controlling the compressor to operate until the first operation period is finished;
judging whether the indoor fan works at a high wind gear or not when the first operation period is ended;
if the indoor fan works at a high wind gear, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs, and controlling the compressor to operate by taking a first limit frequency corresponding to the outdoor environment temperature interval as a target frequency;
if the indoor fan works in a medium wind gear or a low wind gear, judging whether the real-time outdoor environment temperature exceeds an outdoor environment temperature threshold corresponding to the running mode of the air conditioner; if the outdoor environment temperature exceeds the outdoor environment temperature threshold, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs, and controlling the compressor to operate by taking a first limit frequency corresponding to the outdoor environment temperature interval as a target frequency; and if the current wind speed does not exceed the outdoor environment temperature threshold, judging an outdoor environment temperature interval to which the real-time indoor environment temperature belongs, calling a current wind speed weight according to a gear interval to which the current wind speed belongs, and controlling the compressor to operate by taking a second limiting frequency as a target frequency, wherein the second limiting frequency = a first limiting frequency corresponding to the outdoor environment temperature and a wind speed weight corresponding to the current operation working condition.
Further, the method also comprises the following steps:
if the indoor fan does not work at a high wind gear, firstly, judging whether the indoor fan operates at a mute gear or a strong gear; if the indoor fan operates in a mute gear or a strong gear, the current operation mode is kept, and if the indoor fan does not operate in the mute gear or the strong gear, whether the indoor fan operates in a medium wind gear or a low wind gear is further judged.
Further, the step of generating the first limiting frequency comprises the following steps:
calling the rated operation frequency of the current operation mode according to the outdoor environment temperature interval to which the real-time outdoor environment temperature belongs;
calling a frequency limiting coefficient;
calculating a first limiting frequency, wherein the first limiting frequency = a rated operation frequency x a frequency limiting coefficient of the current operation mode.
Further, if the air conditioner operates in a cooling mode and the indoor fan works in a medium wind gear or a low wind gear, the cooling wind speed weight corresponding to the medium wind gear or the low wind gear is called, and the real-time outdoor environment temperature is detected:
if the real-time outdoor environment temperature belongs to a first outdoor environment temperature interval, calling a first refrigeration rated frequency and a first frequency limiting coefficient corresponding to the first outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the first refrigeration rated frequency multiplied by the first frequency limiting coefficient multiplied by the refrigeration wind speed weight;
if the real-time outdoor environment temperature belongs to a second outdoor environment temperature interval, calling a second refrigeration rated frequency and a second frequency limiting coefficient corresponding to the second outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the second refrigeration rated frequency multiplied by the second frequency limiting coefficient multiplied by the refrigeration wind speed weight;
if the real-time outdoor environment temperature belongs to a third outdoor environment temperature interval, calling a third refrigeration rated frequency and a third frequency limiting coefficient corresponding to the third outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the third refrigeration rated frequency multiplied by the third frequency limiting coefficient multiplied by the refrigeration wind speed weight;
and the threshold values of the first outdoor environment temperature interval, the second outdoor environment temperature interval and the third outdoor environment temperature interval are sequentially increased.
Further, the first frequency limiting coefficient, the second frequency limiting coefficient and the third frequency limiting coefficient are respectively the maximum frequency/the first refrigeration rated frequency which the compressor meets the qualification of noise in the refrigeration mode, the maximum frequency/the second refrigeration rated frequency which the compressor meets the qualification of noise in the refrigeration mode and the maximum frequency/the third refrigeration rated frequency which the compressor meets the qualification of noise in the refrigeration mode.
Further, the weight of the cooling wind speed is less than 1.
Further, if the air conditioner operates in a heating mode and the indoor fan works in a medium wind gear or a low wind gear, the heating wind speed weight corresponding to the medium wind gear or the low wind gear is called, and the real-time outdoor environment temperature is detected:
if the real-time outdoor environment temperature belongs to a first outdoor environment temperature interval, calling a first heating rated frequency and a first frequency limiting coefficient corresponding to the first outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the first heating rated frequency multiplied by the first frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a second outdoor environment temperature interval, calling a second heating rated frequency and a second frequency limiting coefficient corresponding to the second outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the second heating rated frequency multiplied by the second frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a third outdoor environment temperature interval, calling a third heating rated frequency and a third frequency limiting coefficient corresponding to the third outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the third heating rated frequency multiplied by the third frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a fourth outdoor environment temperature interval, calling a fourth heating rated frequency and a fourth frequency limiting coefficient corresponding to the fourth outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the fourth heating rated frequency multiplied by the fourth frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a fifth outdoor environment temperature interval, calling a fifth heating rated frequency and a fifth frequency limiting coefficient corresponding to the fifth outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the fifth heating rated frequency multiplied by the fifth frequency limiting coefficient multiplied by the heating wind speed weight;
and the threshold values of the first outdoor environment temperature interval, the second outdoor environment temperature interval, the third outdoor environment temperature interval, the fourth outdoor environment temperature interval and the fifth outdoor environment temperature interval are sequentially decreased progressively.
Further, the first frequency limiting coefficient, the second frequency limiting coefficient, the third frequency limiting coefficient, the fourth frequency limiting coefficient and the fifth frequency limiting coefficient are respectively the maximum frequency/the first heating rated frequency which are qualified for noise of the compressor in the heating mode, the maximum frequency/the second heating rated frequency which are qualified for noise of the compressor in the heating mode, the maximum frequency/the third heating rated frequency which are qualified for noise of the compressor in the heating mode, the maximum frequency/the fourth heating rated frequency which are qualified for noise of the compressor in the heating mode, and the maximum frequency/the fifth heating rated frequency which are qualified for noise of the compressor in the heating mode.
Further, the heating wind speed weight is less than 1.
The air conditioner control method disclosed by the invention corrects the target operation frequency of the compressor obtained in the existing algorithm according to the degree of the real-time outdoor environment temperature deviating from the comfortable temperature, improves the correlation degree between the target operation frequency of the compressor and the outdoor environment temperature and the indoor fan wind speed, intelligently optimizes the energy consumption of the compressor, and achieves the balance among the human body comfort level, the compressor energy consumption and the outdoor environment temperature.
Simultaneously, the air conditioner adopts the following air conditioner control method, and comprises the following steps:
setting an air conditioner operation mode;
controlling the compressor to operate until the first operation period is finished;
judging whether the indoor fan works at a high wind gear or not when the first operation period is ended;
if the indoor fan works at a high wind gear, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs, and controlling the compressor to operate by taking a first limit frequency corresponding to the outdoor environment temperature interval as a target frequency;
if the indoor fan works in a medium wind gear or a low wind gear, judging whether the real-time outdoor environment temperature exceeds an outdoor environment temperature threshold corresponding to the running mode of the air conditioner; if the outdoor environment temperature exceeds the outdoor environment temperature threshold, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs, and controlling the compressor to operate by taking a first limit frequency corresponding to the outdoor environment temperature interval as a target frequency; and if the current wind speed does not exceed the outdoor environment temperature threshold, judging an outdoor environment temperature interval to which the real-time indoor environment temperature belongs, calling a current wind speed weight according to a gear interval to which the current wind speed belongs, and controlling the compressor to operate by taking a second limiting frequency as a target frequency, wherein the second limiting frequency = a first limiting frequency corresponding to the outdoor environment temperature and a wind speed weight corresponding to the current operation working condition.
The air conditioner disclosed by the invention has the advantage of high intelligent degree.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart illustrating a first embodiment of a method for controlling an air conditioner according to the present invention;
fig. 2 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a first embodiment of a control method for an air conditioner according to the present invention. The control method disclosed by the invention is applied to the variable frequency air conditioner. As shown in fig. 1, the air conditioner control method disclosed by the present invention comprises the following steps:
and S101, powering on an indoor unit of the air conditioner, outputting a setting signal by a user through a remote controller, an intelligent terminal or remote control, and setting an operation mode of the air conditioner. The air conditioner operation mode includes a cooling mode, a heating mode, and a dehumidifying mode.
And step S102, the air conditioner controls the compressor to operate according to a set control algorithm. For example, the air conditioner control module calculates a temperature difference between an indoor ambient temperature and a set temperature, and calculates a target operating frequency of the compressor using a PID algorithm or a fuzzy control algorithm. The compressor is controlled to operate until the first operating period ends. Preferably, the first operating period is set to 15 minutes.
And step S103, when the first operation period is finished, the air conditioner control module judges whether the indoor fan works at a high wind gear under the current state.
And step S104, if the vehicle works in a high-wind gear, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs so as to determine the degree of deviation of the real-time outdoor environment temperature from the comfortable temperature or the target temperature.
And step S105, controlling the compressor to operate by taking the first limit frequency corresponding to the outdoor environment temperature interval as a target frequency. In this embodiment, the purpose of step S105 is to correct the target operating frequency of the compressor obtained in the existing algorithm according to the degree of deviation of the real-time outdoor environment temperature from the comfortable temperature, so as to improve the degree of correlation between the target operating frequency of the compressor and the outdoor environment temperature, and optimize the energy consumption of the compressor.
The step of generating the first limiting frequency comprises the following steps:
firstly, calling the rated operation frequency of the current operation mode according to the outdoor environment temperature interval to which the real-time outdoor environment temperature belongs. The rated operation frequency refers to a frequency value when the air conditioner reaches rated refrigerating capacity or rated refrigerating power. The rated operation frequency corresponding to each outdoor environment temperature interval is obtained by a large number of experiments of professional technicians under the guidance of national standards and refrigeration technical principles, such as refrigeration capacity, refrigeration power and EER experiments, heat pump heating capacity, heat pump heating consumption power and coefficient of performance COP experiments and the like.
Second, the frequency limiting coefficient is invoked. In the present embodiment, each of the divided outdoor environment temperature intervals corresponds to one frequency limiting coefficient. The frequency limiting coefficient is stored in a storage unit of the air conditioner controller in advance. The frequency limiting coefficient is the ratio of the maximum frequency of the compressor meeting qualified noise in the current operation mode to the rated operation frequency. Wherein, the maximum frequency that the compressor meets the noise qualification under the current operation mode is obtained through a noise experiment. The pre-calculated frequency limiting coefficient is converted into hexadecimal and stored in a storage unit of the air conditioner controller for being called at any time.
Third, a first limiting frequency is calculated, the first limiting frequency = a nominal operating frequency of the current operating mode x a frequency limiting coefficient. In the actual operation process, the first limiting frequency may also be corrected by referring to the result of the outer loop temperature frequency limiting experiment, for example, the smaller between the two is selected as the first limiting frequency.
Under the high wind gear, reach the balance of air conditioner effect, noise index, human comfort level and compressor energy consumption through above-mentioned mode.
And step S106, if the indoor fan does not work in a high wind gear, further judging whether the indoor fan works in a medium wind gear or a low wind gear.
And step S107, if the indoor fan works in a medium wind gear or a low wind gear, further judging whether the real-time outdoor environment temperature exceeds an outdoor environment temperature threshold corresponding to the running mode of the air conditioner. Specifically, in step S107, if the air conditioner is operated in the cooling/dehumidification mode, it is further determined whether the real-time outdoor ambient temperature is higher than 29 degrees celsius, and if the real-time outdoor ambient temperature is higher than 29 degrees celsius, it is determined that the outdoor ambient temperature threshold corresponding to the cooling/dehumidification mode is exceeded. Similarly, if the air conditioner works in the heating mode, whether the real-time outdoor environment temperature is lower than 4 ℃, and if the real-time outdoor environment temperature is lower than 4 ℃, the outdoor environment temperature threshold corresponding to the heating mode is determined to be exceeded.
Step S108, if the real-time outdoor ambient temperature exceeds the outdoor ambient temperature threshold corresponding to the air conditioner operation mode, it indicates that the deviation degree between the current operation environment and the comfortable environment is large. In order to realize fine control, the outdoor environment temperature interval to which the real-time outdoor environment temperature belongs is further determined.
Step S109, controlling the compressor to operate with the first limiting frequency corresponding to the outdoor environment temperature section as the target frequency. The first limiting frequency = rated operation frequency x frequency limiting coefficient of the operation mode corresponding to the outdoor environment temperature range. Similar to step S105, the nominal operating frequency corresponding to the outdoor environment temperature interval is obtained through a lot of experiments by those skilled in the art under the guidance of the refrigeration technology principle.
Step S110, if the real-time outdoor environment temperature does not exceed the outdoor environment temperature threshold corresponding to the air conditioner operation mode, for example, in the heating mode, the real-time outdoor environment temperature is higher than 4 degrees celsius, or in the cooling mode, the real-time outdoor environment temperature is lower than 29 degrees celsius. Similarly, the outdoor ambient temperature section to which the real-time indoor ambient temperature belongs is further determined.
And step S111, further calling the current wind speed weight according to the gear interval of the current wind speed. For example, if the current wind speed gear is a medium wind gear, the medium wind gear wind speed weight is called, and if the current wind speed gear is a low wind gear, the low wind gear wind speed weight is called. Preferably, the wind speed weight of the middle wind gear is larger than that of the low wind gear, so that the target operation frequency of the compressor is limited, and the energy consumption of the compressor is optimized. The wind speed weight of the middle wind gear is larger than that of the low wind gear.
And step S112, combining two important factors of the real-time outdoor environment temperature and the current wind speed gear, and further controlling the compressor to operate by taking the second limit frequency as a target frequency. The second limiting frequency = the first limiting frequency corresponding to the outdoor ambient temperature and the wind speed weight corresponding to the current operating condition.
In the control process, if the detected real-time outdoor environment temperature never exceeds the outdoor environment temperature threshold corresponding to the air conditioner operation mode and jumps to exceed the outdoor environment temperature threshold corresponding to the air conditioner operation mode, the operation of the compressor is stopped by taking the second limit frequency as the target frequency, and the target operation frequency of the compressor is generated again according to the condition that the real-time outdoor environment temperature exceeds the outdoor environment temperature threshold corresponding to the air conditioner operation mode.
According to the air conditioner control method disclosed by the embodiment, the target operation frequency of the compressor obtained in the existing algorithm is corrected according to the degree of the real-time outdoor environment temperature deviating from the comfortable temperature, the correlation degree between the target operation frequency of the compressor and the outdoor environment temperature and the indoor fan wind speed is improved, the energy consumption of the compressor is intelligently optimized, and the balance among the human body comfort level, the compressor energy consumption and the outdoor environment temperature is achieved.
As shown in fig. 2, some air conditioners are also provided with two wind speed gears of strong and silent. In both operating modes, a target operating frequency of the compressor is usually written in the air conditioner controller, which is matched to the wind speed gear. Therefore, as shown in step S206 of fig. 2, when the air conditioner controller determines that the indoor fan is not operated in the high wind range, it is first determined whether the indoor fan is operated in the two strong or silent ranges in step S207, and if the indoor fan is operated in the two strong or silent ranges, the current operation state is maintained. If the wind power generation device is not operated in a strong or mute gear, whether the wind power generation device is operated in a middle wind gear or a low wind gear is further judged, and therefore the effect that the user demand is taken as a priority control target is achieved.
The following describes a control mode of the air conditioner when the air conditioner operates in different modes and the indoor fan is operated in a medium wind gear or a low wind gear.
If the air conditioner operates in a cooling mode and the indoor fan works in a medium wind gear (the control logic of the dehumidification mode is the same as that of the cooling mode, and is not described herein), calling a cooling wind speed weight corresponding to the medium wind gear, and preferably, the cooling wind speed weight in the medium wind gear belongs to (0.5, 1). If the air conditioner operates in a cooling mode and the indoor fan works in a low wind gear, calling a cooling wind speed weight corresponding to the low wind gear, wherein the preferred cooling wind speed weight in the medium wind gear belongs to (0, 0.5). And detecting the outdoor environment temperature in real time.
If the real-time outdoor environment temperature belongs to a first outdoor environment temperature interval, preferably, the first outdoor environment temperature interval is (0 ℃, 16 ℃), calling a first refrigeration rated frequency and a first frequency limiting coefficient corresponding to the first outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the first refrigeration rated frequency x the first frequency limiting coefficient x the refrigeration wind speed weight.
If the real-time outdoor environment temperature belongs to a second outdoor environment temperature interval, preferably, the second outdoor environment temperature interval is (16 ℃, 22 ℃), calling a second refrigeration rated frequency and a second frequency limiting coefficient corresponding to the second outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the second refrigeration rated frequency × the second frequency limiting coefficient × the refrigeration wind speed weight.
If the real-time outdoor environment temperature belongs to the third outdoor environment temperature interval, preferably, the third outdoor environment temperature interval is (22 ℃, 29 ℃), calling a third refrigeration rated frequency and a third frequency limiting coefficient corresponding to the third outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the third refrigeration rated frequency × the third frequency limiting coefficient × the refrigeration wind speed weight.
And the threshold values of the first outdoor environment temperature interval, the second outdoor environment temperature interval and the third outdoor environment temperature interval are sequentially increased. During practical application, the interval lengths of the first outdoor environment temperature interval, the second outdoor environment temperature interval and the third outdoor environment temperature interval are preferably set to be gradually decreased, so that when the outdoor environment temperature is lower, the probability that the target operation frequency of the compressor is unchanged is higher, and when the outdoor environment temperature is higher, the probability that the target operation frequency of the compressor is changed is higher, so that the intelligent degree of responding to the control of the outdoor environment temperature is improved, and the air conditioning effect is more comfortable. The first frequency limiting coefficient is the maximum frequency/first refrigeration rated frequency which meets the qualification of noise of the compressor under the refrigeration mode, the second frequency limiting coefficient is the maximum frequency/second refrigeration rated frequency which meets the qualification of noise of the compressor under the refrigeration mode, and the third frequency limiting coefficient is the maximum frequency/third refrigeration rated frequency which meets the qualification of noise of the compressor under the refrigeration mode.
If in the refrigeration mode, if the real-time outdoor environment temperature is monitored to jump to exceed the corresponding outdoor environment temperature threshold, such as more than 29 ℃; it is determined that the outdoor ambient temperature threshold corresponding to the cooling mode is exceeded. And controlling the compressor to operate by taking the first limit frequency corresponding to the outdoor environment temperature interval as a target frequency, and not correcting the wind speed.
If the air conditioner operates in the heating mode and the indoor fan works in the middle wind gear, calling a heating wind speed weight corresponding to the middle wind gear, and preferably, the heating wind speed weight in the middle wind gear belongs to (0.7, 1). If the air conditioner operates in a heating mode and the indoor fan works in a low wind gear, calling a heating wind speed weight corresponding to the low wind gear, and preferably, the heating wind speed weight in a middle wind gear belongs to (0.6, 1). And detecting the outdoor environment temperature in real time.
If the real-time outdoor environment temperature belongs to a first outdoor environment temperature interval, preferably, the first outdoor environment temperature interval is [22 ℃ and + ∞ ], calling a first heating rated frequency and a first frequency limiting coefficient corresponding to the first outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the first heating rated frequency × the first frequency limiting coefficient × a heating wind speed weight.
If the real-time outdoor environment temperature belongs to a second outdoor environment temperature interval, preferably, the second outdoor environment temperature interval is (16 ℃, 22 ℃), calling a second heating rated frequency and a second frequency limiting coefficient corresponding to the second outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the second heating rated frequency × the second frequency limiting coefficient × the heating wind speed weight.
If the real-time outdoor environment temperature belongs to the third outdoor environment temperature interval, preferably, the third outdoor environment temperature interval is (10 ℃, 16 ℃), calling a third heating rated frequency and a third frequency limiting coefficient corresponding to the third outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the third heating rated frequency × the third frequency limiting coefficient × the heating wind speed weight.
If the real-time outdoor environment temperature belongs to a fourth outdoor environment temperature interval, preferably, the third outdoor environment temperature interval is (5 ℃, 10 ℃), calling a fourth heating rated frequency and a fourth frequency limiting coefficient corresponding to the fourth outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the fourth heating rated frequency × the fourth frequency limiting coefficient × the heating wind speed weight.
If the real-time outdoor environment temperature belongs to a fifth outdoor environment temperature interval, preferably, the fifth outdoor environment temperature interval is [4 ℃, 5 ℃), calling a fifth heating rated frequency and a fifth frequency limiting coefficient corresponding to the fifth outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the fifth heating rated frequency × the fourth frequency limiting coefficient × the heating wind speed weight.
And the threshold values of the first outdoor environment temperature interval, the second outdoor environment temperature interval, the third outdoor environment temperature interval, the fourth outdoor environment temperature interval and the fifth outdoor environment temperature interval are sequentially decreased progressively. During practical application, the interval lengths of the first outdoor environment temperature interval, the second outdoor environment temperature interval and the third outdoor environment temperature interval are preferably set to be gradually decreased, so that when the outdoor environment temperature is higher, the probability that the target operation frequency of the compressor is kept unchanged is higher, and when the outdoor environment temperature is lower, the probability that the target operation frequency of the compressor is changed is higher, so that the intelligent degree of responding to the control of the outdoor environment temperature is improved, and the air conditioning effect is more comfortable. The first frequency limiting coefficient is the maximum frequency/first heating rated frequency which is qualified when the compressor meets the noise in the heating mode, the second frequency limiting coefficient is the maximum frequency/second heating rated frequency which is qualified when the compressor meets the noise in the heating mode, the third frequency limiting coefficient is the maximum frequency/third heating rated frequency which is qualified when the compressor meets the noise in the heating mode, the fourth frequency limiting coefficient is the maximum frequency/fourth heating rated frequency which is qualified when the compressor meets the noise in the heating mode, and the fifth frequency limiting coefficient is the maximum frequency/fifth heating rated frequency which is qualified when the compressor meets the noise in the heating mode.
If in the heating mode, if the real-time outdoor environment temperature is monitored to jump to exceed the corresponding outdoor environment temperature threshold, such as less than 4 ℃; it is determined that the outdoor ambient temperature threshold corresponding to the heating mode is exceeded. And controlling the compressor to operate by taking the first limit frequency corresponding to the outdoor environment temperature interval as a target frequency, and not correcting the wind speed.
By the control method, the target operation frequency of the compressor can be corrected according to the outdoor environment temperature and different operation states of the indoor fan, the degree of association between the target operation frequency of the compressor and the outdoor environment temperature and the wind speed of the indoor fan is improved, the energy consumption of the compressor is intelligently optimized, and the balance among the human body comfort level, the compressor energy consumption and the outdoor environment temperature is achieved.
The invention also discloses an air conditioner, and the air conditioner control method disclosed by the embodiment is adopted. The specific steps of the air conditioner control method refer to the detailed description of the above embodiments and the detailed description of the drawings in the specification, and are not repeated herein. The air conditioner adopting the air conditioner control method can achieve the same technical effect.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An air conditioner control method is characterized by comprising the following steps:
setting an air conditioner operation mode;
controlling the compressor to operate until the first operation period is finished;
judging whether the indoor fan works at a high wind gear or not when the first operation period is ended;
if the indoor fan works at a high wind gear, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs, and controlling the compressor to operate by taking a first limit frequency corresponding to the outdoor environment temperature interval as a target frequency; if the indoor fan does not work at a high wind gear, firstly, judging whether the indoor fan operates at a mute gear or a strong gear; if the indoor fan operates in a mute gear or a strong gear, the current operation mode is kept, and if the indoor fan does not operate in the mute gear or the strong gear, whether the indoor fan operates in a medium wind gear or a low wind gear is further judged;
if the indoor fan works in a medium wind gear or a low wind gear, judging whether the real-time outdoor environment temperature exceeds an outdoor environment temperature threshold corresponding to the running mode of the air conditioner; if the outdoor environment temperature exceeds the outdoor environment temperature threshold, judging an outdoor environment temperature interval to which the real-time outdoor environment temperature belongs, and controlling the compressor to operate by taking a first limit frequency corresponding to the outdoor environment temperature interval as a target frequency; and if the current wind speed does not exceed the outdoor environment temperature threshold, judging an outdoor environment temperature interval to which the real-time indoor environment temperature belongs, calling a current wind speed weight according to a gear interval to which the current wind speed belongs, and controlling the compressor to operate by taking a second limiting frequency as a target frequency, wherein the second limiting frequency = a first limiting frequency corresponding to the outdoor environment temperature and a wind speed weight corresponding to the current operation working condition.
2. The air conditioner control method according to claim 1, wherein generating the first limit frequency includes:
calling the rated operation frequency of the current operation mode according to the outdoor environment temperature interval to which the real-time outdoor environment temperature belongs;
calling a frequency limiting coefficient;
calculating a first limiting frequency, wherein the first limiting frequency = a rated operation frequency x a frequency limiting coefficient of the current operation mode.
3. The air conditioner controlling method according to claim 2,
if the air conditioner operates in a refrigeration mode and the indoor fan works in a medium wind gear or a low wind gear, calling a refrigeration wind speed weight corresponding to the medium wind gear or the low wind gear, and detecting real-time outdoor environment temperature:
if the real-time outdoor environment temperature belongs to a first outdoor environment temperature interval, calling a first refrigeration rated frequency and a first frequency limiting coefficient corresponding to the first outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the first refrigeration rated frequency multiplied by the first frequency limiting coefficient multiplied by the refrigeration wind speed weight;
if the real-time outdoor environment temperature belongs to a second outdoor environment temperature interval, calling a second refrigeration rated frequency and a second frequency limiting coefficient corresponding to the second outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the second refrigeration rated frequency multiplied by the second frequency limiting coefficient multiplied by the refrigeration wind speed weight;
if the real-time outdoor environment temperature belongs to a third outdoor environment temperature interval, calling a third refrigeration rated frequency and a third frequency limiting coefficient corresponding to the third outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the third refrigeration rated frequency multiplied by the third frequency limiting coefficient multiplied by the refrigeration wind speed weight;
and the threshold values of the first outdoor environment temperature interval, the second outdoor environment temperature interval and the third outdoor environment temperature interval are sequentially increased.
4. The air conditioner control method according to claim 3, wherein the first frequency limiting coefficient, the second frequency limiting coefficient and the third frequency limiting coefficient are respectively a maximum frequency/a first refrigerating rated frequency at which the compressor satisfies a noise pass in a refrigerating mode, a maximum frequency/a second refrigerating rated frequency at which the compressor satisfies a noise pass in a refrigerating mode and a maximum frequency/a third refrigerating rated frequency at which the compressor satisfies a noise pass in a refrigerating mode.
5. The air conditioner controlling method as claimed in claim 4, wherein the cooling wind speed weight is less than 1.
6. The air conditioner controlling method according to claim 2,
if the air conditioner operates in a heating mode and the indoor fan works in a medium wind gear or a low wind gear, calling heating wind speed weight corresponding to the medium wind gear or the low wind gear, and detecting real-time outdoor environment temperature:
if the real-time outdoor environment temperature belongs to a first outdoor environment temperature interval, calling a first heating rated frequency and a first frequency limiting coefficient corresponding to the first outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the first heating rated frequency multiplied by the first frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a second outdoor environment temperature interval, calling a second heating rated frequency and a second frequency limiting coefficient corresponding to the second outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the second heating rated frequency multiplied by the second frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a third outdoor environment temperature interval, calling a third heating rated frequency and a third frequency limiting coefficient corresponding to the third outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the third heating rated frequency multiplied by the third frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a fourth outdoor environment temperature interval, calling a fourth heating rated frequency and a fourth frequency limiting coefficient corresponding to the fourth outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the fourth heating rated frequency multiplied by the fourth frequency limiting coefficient multiplied by the heating wind speed weight;
if the real-time outdoor environment temperature belongs to a fifth outdoor environment temperature interval, calling a fifth heating rated frequency and a fifth frequency limiting coefficient corresponding to the fifth outdoor environment temperature interval, and calculating a second limiting frequency under the current working condition, wherein the second limiting frequency = the fifth heating rated frequency multiplied by the fifth frequency limiting coefficient multiplied by the heating wind speed weight;
and the threshold values of the first outdoor environment temperature interval, the second outdoor environment temperature interval, the third outdoor environment temperature interval, the fourth outdoor environment temperature interval and the fifth outdoor environment temperature interval are sequentially decreased progressively.
7. The air conditioner controlling method according to claim 6,
the first frequency limiting coefficient, the second frequency limiting coefficient, the third frequency limiting coefficient, the fourth frequency limiting coefficient and the fifth frequency limiting coefficient are respectively the maximum frequency/the first heating rated frequency which are qualified when the compressor meets the noise in the heating mode, the maximum frequency/the second heating rated frequency which are qualified when the compressor meets the noise in the heating mode, the maximum frequency/the third heating rated frequency which are qualified when the compressor meets the noise in the heating mode, the maximum frequency/the fourth heating rated frequency which are qualified when the compressor meets the noise in the heating mode, and the maximum frequency/the fifth heating rated frequency which are qualified when the compressor meets the noise in the heating mode.
8. The air conditioner controlling method as claimed in claim 7, wherein the heating wind speed weight is less than 1.
9. An air conditioner characterized by employing the air conditioner control method as claimed in any one of claims 1 to 8.
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