CN111023402A - Self-adaptive adjusting method of air conditioning system and air conditioner - Google Patents
Self-adaptive adjusting method of air conditioning system and air conditioner Download PDFInfo
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- CN111023402A CN111023402A CN201911407770.7A CN201911407770A CN111023402A CN 111023402 A CN111023402 A CN 111023402A CN 201911407770 A CN201911407770 A CN 201911407770A CN 111023402 A CN111023402 A CN 111023402A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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Abstract
The invention provides an adaptive adjustment method of an air conditioning system and an air conditioner, and particularly relates to the technical field of air conditioners. The self-adaptive adjusting method is used for a commercial multi-split air conditioning system and comprises the following steps: detecting the environmental temperature of the environment where an indoor unit is located; detecting target parameters of the indoor unit; acquiring the set temperature of the environment where the indoor unit is located, which is set by a user; judging whether to execute self-adaptive adjustment of the indoor unit or not according to the difference value between the ambient temperature and the set temperature and the target parameter; wherein the target parameter comprises at least one of compressor frequency, system pressure, and line temperature. The accuracy of self-adaptive control is improved, so that the comfort of the air conditioning system is guaranteed, and the use experience of the air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an adaptive adjustment method of an air conditioner system and an air conditioner.
Background
The multi-split air conditioning system generally has two or more internal machines, and the internal machines may be completely or partially opened in actual use, and the scenes used by each internal machine are different. Generally, an air conditioning system operates according to specific parameters set in a control unit, but since the usage scenario of an indoor unit of a multi-split air conditioner is complex, and after the air conditioning system reaches a stable state, the temperature in a room may be different from the temperature set by a user, for example, the load in the room is large or the heat preservation effect of doors and windows is not good, the phenomenon that the temperature set by the user cannot be reached can occur, the use comfort of the air conditioning system is affected, and even complaints of the user are caused.
In addition, the control mode of the existing multi-split air conditioner has low response speed, and cannot carry out real-time dynamic control according to the actual use condition of the indoor unit.
Disclosure of Invention
The invention aims to solve the problem that the indoor unit of the existing multi-split air-conditioning system has complex use scenes to a certain extent, and the temperature in a room is possibly different from the temperature set by a user after the air-conditioning system reaches a stable state; in addition, the control method of the existing multi-split air conditioner has low response speed, and can not carry out real-time dynamic control according to the actual use condition of the indoor unit.
In order to solve the above problems, the present invention provides an adaptive control method for an air conditioning system, where the adaptive control method is used for a commercial multi-split air conditioning system, and the method includes:
detecting the environmental temperature of the environment where an indoor unit is located;
detecting target parameters of the indoor unit;
acquiring the set temperature of the environment where the indoor unit is located, which is set by a user;
judging whether to execute self-adaptive adjustment of the indoor unit or not according to the difference value between the ambient temperature and the set temperature and the target parameter;
wherein the target parameter comprises at least one of compressor frequency, system pressure, and line temperature.
According to the invention, the self-adaptive adjustment of the indoor unit of the commercial multi-split air conditioner is utilized, so that the use scene of the indoor unit with complex multi-split air conditioners is met, and the use experience of a plurality of different indoor units of the commercial multi-split air conditioner is improved. The control mode of different indoor units of the commercial multi-split air conditioner is simplified. Meanwhile, whether the self-adaptive adjustment of the indoor unit is executed or not is judged according to the difference value between the ambient temperature and the set temperature and the target parameter, the control accuracy of the self-adaptive adjustment is guaranteed, the accuracy of the self-adaptive control is improved, the comfort of the use of an air conditioning system is guaranteed, and the use experience of the air conditioner is improved.
Further, when it is determined that adaptive adjustment of the indoor unit needs to be performed, the operating frequency of a compressor corresponding to the indoor unit is increased, so that the ambient temperature approaches or reaches the set temperature.
The working frequency of the compressor is controlled, so that the refrigerating or heating intensity of the indoor unit is controlled, and the working frequency of the compressor is changed, so that the refrigerating and heating response of the corresponding indoor unit is rapid, and the real-time accuracy of the self-adaptive adjustment is ensured.
Further, in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, determining whether to perform adaptive adjustment on the indoor unit according to whether the target parameter is lower than or higher than a first set parameter;
and after the self-adaptive adjustment of the indoor unit is judged to be executed, reducing the first setting parameter.
When the difference between the ambient temperature and the set temperature is greater than the first difference, adaptive adjustment is inevitably required to be performed a plurality of times, and thus the first set parameter is reduced. Then, the target parameter is compared with the second setting parameter or the third setting parameter after the first setting parameter is reduced, thereby reducing the criterion for judging whether to perform adaptive adjustment on the indoor unit, making it easier to judge that adaptive adjustment is required, and increasing the number of times of adaptive adjustment.
In addition, in both indoor heating and cooling, it is often determined that adaptive adjustment is necessary by bringing the target parameter to a certain set value, for example, the first set parameter, and satisfying other conditions, for example, a difference between the ambient temperature and the set temperature.
Further, in a cooling mode of the indoor unit, the target parameter of the indoor unit is the indoor suction pressure;
in the process of judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, if the target parameter is smaller than a first set parameter, judging not to execute the operation frequency increase of a compressor corresponding to the indoor unit; and if the target parameter is greater than or equal to the first set parameter and the difference value between the ambient temperature and the set temperature is greater than a first set difference value, judging to execute the operation of increasing the working frequency of the compressor corresponding to the indoor unit.
Further, if the target parameter is greater than or equal to the first setting parameter and the difference between the ambient temperature and the setting temperature is greater than a first setting difference, it is determined that the first setting parameter is decreased by a first correction value to become a second setting parameter in the process of increasing the working frequency of the compressor corresponding to the indoor unit.
Further, in the process of re-executing the process of determining whether to execute the adaptive adjustment of the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if the difference between the ambient temperature and the set temperature is greater than a first set difference, determining to execute the process of increasing the working frequency of the compressor corresponding to the indoor unit, and simultaneously, decreasing the second set parameter by at least one first correction value to become a third set parameter; then, the difference value between the environment temperature and the set temperature and the target parameter are executed again.
In the process of judging whether to execute the self-adaptive adjustment of the indoor unit or not according to the difference value between the ambient temperature and the set temperature and the target parameter in the circulating execution, the times that the difference value between the ambient temperature and the set temperature is larger than the first set difference value is in direct proportion to the number of times that the first set parameter reduces the first correction value, so that the target parameter is easily larger than the second set parameter or the third set parameter, the compressor is enabled to more easily execute the work of improving the working frequency, and the response speed of the self-adaptive adjustment is improved.
Further, in the process of performing the adaptive adjustment on the indoor unit again according to the difference between the ambient temperature and the set temperature and the target parameter, if it is known that the difference between the ambient temperature and the set temperature is always smaller than a second set difference and the second set difference is smaller than the first set difference if a first set time is continued, increasing the first correction value to the second set parameter to restore the second set parameter to the first set parameter, and/or decreasing the working frequency of the compressor corresponding to the indoor unit;
and then, circularly executing the comparison between the target parameter and the first set parameter according to the difference between the environment temperature and the set temperature, and judging whether to execute the self-adaptive adjustment of the indoor unit.
By the arrangement, under the condition that the difference value between the ambient temperature and the set temperature is always smaller than the second set difference value and the second set difference value is smaller than the first set difference value, the ambient temperature is close to the set temperature, frequent self-adaptive adjustment is not needed at the moment, and therefore the second set parameter needs to be restored to the first set parameter, so that the self-adaptive adjustment frequency is reduced, meanwhile, the working frequency of a corresponding compressor can be reduced, and unnecessary energy consumption of the air conditioner is reduced.
Further, in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if the difference between the ambient temperature and the set temperature is smaller than the first set difference, and the difference between the ambient temperature and the set temperature is greater than a second set difference, and it is known that the difference between the ambient temperature and the set temperature is always smaller than the first set difference and greater than the second set difference for a second set time, the first set parameter is decreased by a first correction value to become the second set parameter.
With this arrangement, it is considered that in the case where the difference between the ambient temperature and the set temperature is smaller than the first set difference, the difference between the set temperature and the ambient temperature may be increased as time continues to accumulate, thereby reducing the comfort of the air conditioning system. For this case, regular adaptive adjustments are required to maintain comfort in use of the air conditioning system. Therefore, the difference between the ambient temperature and the set temperature is always smaller than the first set difference and larger than the second set difference continuously for the second set time, so that the first set parameter is reduced by a first correction value to become the second set parameter.
Further, in a heating mode of the indoor unit, the target parameter of the indoor unit is the indoor exhaust pressure;
in the process of judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, if the target parameter is smaller than a first set parameter, judging not to execute the operation frequency increase of a compressor corresponding to the indoor unit; if the target parameter is greater than or equal to the first set parameter and the difference value between the ambient temperature and the set temperature is greater than a first set difference value, judging to execute the operation of increasing the working frequency of a compressor corresponding to the indoor unit; at the same time, the first setting parameter is reduced by a second correction value to become a second setting parameter.
Aiming at the characteristics of the heating mode, the target parameter of the indoor unit is the indoor exhaust pressure, so that the detection accuracy is ensured.
Correspondingly, in the refrigeration mode, the target parameter of the indoor unit is the indoor suction pressure, so that the detection accuracy is ensured.
Further, after the air conditioning system is restarted or the operation mode is changed, whether the self-adaptive adjustment of the indoor unit is executed or not is judged according to the comparison of the difference value between the ambient temperature and the set temperature and the comparison of the target parameter and the first set parameter.
When the air conditioning system is restarted or the operation mode is changed, the second setting parameter and the third setting parameter are recovered to be the first setting parameter, so that the system memory is eliminated, and the system performs corresponding self-adaptive adjustment according to actual detection.
In addition, the present invention also provides an air conditioner, which is a commercial multi-split air conditioner, comprising:
the first detection unit is used for detecting the ambient temperature of the environment where an indoor unit is located;
the second detection unit is used for detecting target parameters of the indoor unit; and
the control unit is used for judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the environment temperature and the set temperature and the target parameter;
the set temperature is the temperature of the environment where the indoor unit is located, which is set by a user, and the target parameters at least comprise at least one of compressor frequency, system pressure and pipeline temperature.
Since the advantages of the air conditioner over the prior art are the same as the advantages of the adaptive adjusting method of the air conditioning system over the prior art, no further description is provided herein.
Further, in the process of determining to execute the adaptive adjustment of the indoor unit, the control unit increases the operating frequency of the compressor corresponding to the indoor unit, so that the ambient temperature approaches or reaches the set temperature.
Further, in the process of judging whether to perform the adaptive adjustment on the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, the control unit judges whether to perform the adaptive adjustment on the indoor unit according to whether the target parameter is lower than or higher than a first set parameter;
and reducing the first setting parameter under the condition that the difference value between the environment temperature and the setting temperature is larger than a first difference value.
Further, in a cooling mode of the indoor unit, the target parameter of the indoor unit is the indoor suction pressure; and/or the first and/or second light sources,
and under the heating mode of the indoor unit, the target parameter of the indoor unit is the indoor exhaust pressure.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of the present invention for adaptive adjustment during refrigeration with suction pressure as a target parameter;
fig. 2 is a schematic flow chart of the adaptive control under heating condition with the exhaust pressure as the target parameter according to the embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like, which indicate orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The embodiment provides an adaptive adjustment method of an air conditioning system, which is used for a commercial multi-split air conditioning system and comprises the following steps:
detecting the environmental temperature of the environment where an indoor unit is located;
detecting target parameters of the indoor unit;
acquiring the set temperature of the environment where the indoor unit is set by a user;
judging whether to execute self-adaptive adjustment of the indoor unit or not according to the difference value between the ambient temperature and the set temperature and the target parameter;
wherein the target parameter comprises at least one of compressor frequency, system pressure, and pipeline temperature.
It should be noted that the commercial multi-split air conditioner of the present embodiment may include multiple sets of internal units and multiple external units, for example, the first set of internal units includes two internal units, and the two internal units are connected to the first external unit; the second group of inner machines comprise three inner machines which are connected with the second outer machine; the third group of inner machines comprise an inner machine which is connected with the third outer machine. Thus, the first to third groups of internal units are independent of each other. Thus, the adaptive adjustment method of the present embodiment can be used for the first to third groups, respectively, that is, the first group of internal machines performs adaptive adjustment, the second group of internal machines performs adaptive adjustment, and the third group of internal machines performs adaptive adjustment, thereby avoiding the problem of confusion of the control methods of the first to third groups of internal machines.
In the embodiment, the self-adaptive adjustment of the indoor unit of the commercial multi-split air conditioner is utilized, so that the use scene of the indoor unit with complex multi-split air conditioner is met, and the use experience of a plurality of different indoor units of the commercial multi-split air conditioner is improved. The control mode of different indoor units of the commercial multi-split air conditioner is simplified. Meanwhile, whether the self-adaptive adjustment of the indoor unit is executed or not is judged according to the difference value between the ambient temperature and the set temperature and the target parameter, the control accuracy of the self-adaptive adjustment is guaranteed, the accuracy of the self-adaptive control is improved, the comfort of the use of an air conditioning system is guaranteed, and the use experience of the air conditioner is improved.
Preferably, in the process of determining to perform adaptive adjustment on the indoor unit, the operating frequency of the compressor corresponding to the indoor unit is increased, so that the ambient temperature approaches or reaches the set temperature.
The working frequency of the compressor is controlled, so that the refrigerating or heating intensity of the indoor unit is controlled, and the working frequency of the compressor is changed, so that the refrigerating and heating response of the corresponding indoor unit is rapid, and the real-time accuracy of the self-adaptive adjustment is ensured.
Preferably, in the process of judging whether to execute the adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, whether to execute the adaptive adjustment of the indoor unit is judged according to whether the target parameter is lower than or higher than the first set parameter;
and reducing or increasing the first setting parameter under the condition that the difference value between the environment temperature and the setting temperature is larger than the first difference value.
When the difference between the ambient temperature and the set temperature is greater than the first difference, adaptive adjustment is inevitably required to be performed a plurality of times, and thus the first set parameter is reduced. Then, the target parameter is compared with the second setting parameter or the third setting parameter after the first setting parameter is reduced, thereby reducing the criterion for judging whether to perform adaptive adjustment on the indoor unit, making it easier to judge that adaptive adjustment is required, and increasing the number of times of adaptive adjustment.
In addition, in both indoor heating and cooling, it is often determined that adaptive adjustment is necessary by bringing the target parameter to a certain set value, for example, the first set parameter, and satisfying other conditions, for example, a difference between the ambient temperature and the set temperature.
The judgment standard is adaptive to the actual use condition of the indoor unit, so that the response speed of adaptive adjustment is improved.
Preferably, in the cooling mode of the indoor unit, the target parameter of the indoor unit is indoor suction pressure;
judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, and if the target parameter is smaller than the first set parameter, judging not to execute the operation of increasing the working frequency of a compressor corresponding to the indoor unit; and if the target parameter is greater than or equal to the first set parameter and the difference between the ambient temperature and the set temperature is greater than the first set difference, judging to execute the operation of increasing the working frequency of the compressor corresponding to the indoor unit.
Preferably, if the target parameter is greater than or equal to the first setting parameter and the difference between the ambient temperature and the setting temperature is greater than the first setting difference, the first setting parameter is decreased by a first correction value to become the second setting parameter in the process of increasing the operating frequency of the compressor corresponding to the indoor unit.
Preferably, in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if the difference between the ambient temperature and the set temperature is greater than the first set difference, determining to perform the operation of increasing the operating frequency of the compressor corresponding to the indoor unit, and at the same time, decreasing the second set parameter by at least one first correction value to become a third set parameter; then, the difference between the environmental temperature and the set temperature and the target parameter are executed again.
In the process of judging whether to execute the self-adaptive adjustment of the indoor unit or not according to the difference value between the ambient temperature and the set temperature and the target parameter in the circulating execution, the times that the difference value between the ambient temperature and the set temperature is larger than the first set difference value is in direct proportion to the number of times that the first set parameter reduces the first correction value, so that the target parameter is easily larger than the second set parameter or the third set parameter, the compressor is enabled to more easily execute the work of improving the working frequency, and the response speed of the self-adaptive adjustment is improved.
Preferably, in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if it is known that the difference between the ambient temperature and the set temperature is always smaller than the second set difference and the second set difference is smaller than the first set difference after the first set time is continued, the second set parameter is increased by a first correction value to be restored to the first set parameter, and/or the working frequency of the compressor corresponding to the indoor unit is reduced;
and then, circularly executing the comparison between the target parameter and the first set parameter according to the difference between the environment temperature and the set temperature, and judging whether to execute the self-adaptive adjustment of the indoor unit.
By the arrangement, under the condition that the difference value between the ambient temperature and the set temperature is always smaller than the second set difference value and the second set difference value is smaller than the first set difference value, the ambient temperature is close to the set temperature, frequent self-adaptive adjustment is not needed at the moment, and therefore the second set parameter needs to be restored to the first set parameter, so that the self-adaptive adjustment frequency is reduced, meanwhile, the working frequency of a corresponding compressor can be reduced, and unnecessary energy consumption of the air conditioner is reduced.
Preferably, in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if the difference between the ambient temperature and the set temperature is smaller than a first set difference, and the difference between the set temperature is greater than a second set difference, and it is known that the difference between the ambient temperature and the set temperature is always smaller than the first set difference and greater than the second set difference for a second set time, the first set parameter is decreased by a first correction value to become the second set parameter.
With this arrangement, it is considered that in the case where the difference between the ambient temperature and the set temperature is smaller than the first set difference, the difference between the set temperature and the ambient temperature may be increased as time continues to accumulate, thereby reducing the comfort of the air conditioning system. For this case, regular adaptive adjustments are required to maintain comfort in use of the air conditioning system. Therefore, the difference between the ambient temperature and the set temperature is always smaller than the first set difference and larger than the second set difference continuously for the second set time, so that the first set parameter is reduced by a first correction value to become the second set parameter.
Preferably, in the heating mode of the indoor unit, the target parameter of the indoor unit is indoor exhaust pressure;
judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, and if the target parameter is smaller than the first set parameter, judging not to execute the operation of increasing the working frequency of a compressor corresponding to the indoor unit; if the target parameter is greater than or equal to the first set parameter and the difference between the ambient temperature and the set temperature is greater than the first set difference, judging to execute the operation to enable the compressor corresponding to the indoor unit to improve the working frequency; at the same time, the first setting parameter is lowered by a second correction value to become a second setting parameter.
Aiming at the characteristics of the heating mode, the target parameter of the indoor unit is the indoor exhaust pressure, so that the detection accuracy is ensured.
Correspondingly, in the refrigeration mode, the target parameter of the indoor unit is the indoor suction pressure, so that the detection accuracy is ensured.
Preferably, after the air conditioning system is restarted or the operation mode is changed, whether to perform adaptive adjustment on the indoor unit is determined according to a comparison between a difference value between the ambient temperature and the set temperature and a comparison between the target parameter and the first set parameter.
When the air conditioning system is restarted or the operation mode is changed, the second setting parameter and the third setting parameter are recovered to be the first setting parameter, so that the system memory is eliminated, and the system performs corresponding self-adaptive adjustment according to actual detection.
In addition, this embodiment also provides an air conditioner, and the air conditioner is commercial multi-split air conditioner, and the air conditioner includes:
the first detection unit is used for detecting the ambient temperature of the environment where an indoor unit is located;
the second detection unit is used for detecting target parameters of the indoor unit; and
the control unit is used for judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the environment temperature and the set temperature and the target parameter;
the set temperature is the temperature of the environment where the indoor unit is located, and the target parameters at least comprise at least one of compressor frequency, system pressure and pipeline temperature.
Since the advantages of the air conditioner over the prior art are the same as the advantages of the adaptive adjusting method of the air conditioning system over the prior art, no further description is provided herein.
Preferably, the control unit increases the operating frequency of the compressor corresponding to the indoor unit in the process of determining to perform the adaptive adjustment of the indoor unit, so that the ambient temperature approaches or reaches the set temperature.
Preferably, the control unit determines whether to perform adaptive adjustment on the indoor unit according to whether the target parameter is lower than or higher than a first set parameter in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter;
and reducing or increasing the first setting parameter under the condition that the difference value between the environment temperature and the setting temperature is larger than the first difference value.
Preferably, in the cooling mode of the indoor unit, the target parameter of the indoor unit is indoor suction pressure; or/and in the heating mode of the indoor unit, the target parameter of the indoor unit is indoor exhaust pressure.
Finally, in order to make the explanation of the present embodiment clearer, the following description will be made with specific parameters in the cooling mode and the heating mode, respectively.
Firstly, a refrigeration mode; see fig. 1.
When operating in the cooling mode, the suction pressure is preferably the target parameter:
1. if the suction pressure is detected not to reach the set first set parameter, judging to limit the increase of the working frequency of the compressor, and judging by the indoor unit to maintain the current running state based on the first set parameter;
2. if it is detected that the suction pressure reaches or exceeds the set first set parameter Ps1 and reaches the set first set parameter Ps1 for a third set time (the third set time is preferably 10-30 min), the air conditioning system is considered to have been operated stably, and the difference Δ T between the ambient temperature T _ ai and the set temperature T _ set in the room may be calculated at this time (Δ T ═ T _ ai-T _ set);
2.1 when the Δ T is greater than a first set difference T1 (T1 is preferably 3-5 ℃), considering that the difference between the ambient temperature in the room and the set temperature is large, at this time, the comfort is poor, the first set parameter Ps1 decreases a first correction value M (M is preferably 0.3-0.5 bar), and a second set parameter Ps2 is obtained, that is, Ps2 is Ps1-M, so as to control the frequency rise of the compressor, improve the refrigerating capacity of the indoor unit, and achieve the purpose of reducing the difference Δ T;
2.2 when the second setting difference T2 is larger than the difference delta T and smaller than or equal to the first setting difference T1 (T2 is preferably 0-3 ℃, and T2 is larger than T1), the difference between the ambient temperature in the room and the setting temperature is considered to be smaller, and the system maintains the current running state; if the target parameter is detected to meet the first setting parameter Ps1 and continuously run for 2 times of the third setting time t (i.e. the second setting time), the first setting parameter Ps1 is decreased by a first correction value M to obtain a second setting parameter Ps2, i.e. Ps 2-Ps 1-M, and the frequency of the compressor is controlled to increase in the same way;
2.3 when the third setting difference T3 < delta T ≦ the second setting difference T2 is known (T3 is preferably-2-0 ℃), the temperature in the room is considered to reach the set temperature basically, and at the moment, the system maintains the current pressure target value unchanged, and the working frequency of the compressor does not rise.
2.4, when it is detected that the target parameter P _ s continuously exceeds the second setting parameter Ps2 for the third setting time T, the difference Δ T is determined again, and if Δ T > T1 is the first setting difference, the second setting parameter Ps2 is decreased by one more first correction value M, so that the third setting parameter MPs3 becomes Ps2-M, or of course, the second setting parameter Ps2 is decreased by two more correction values MPs3 becomes Ps 2-2M; of course, if Δ T is less than or equal to T1, the second setting parameter Ps2 may be further decreased by a first correction value M, which is the third setting parameter MPs 3; if the delta T is less than or equal to T2, maintaining the current pressure target value;
2.5 if the target parameter or the environment temperature of the system reaches the corresponding set parameter or the set temperature, or the suction pressure does not reach the new target value, the system maintains the current target pressure value, the compressor also maintains the current operation frequency, and the adjustment is not carried out.
2.6 if the continuous time T detects that the delta T is less than or equal to T3 and the third set difference value, judging that the temperature in the room reaches or is lower than the set temperature, reducing the capacity output of the air conditioning system, increasing the current second set parameter Ps2 or the third set parameter Ps3 by a first correction value M, controlling the compressor to reduce the operating frequency, and controlling the temperature in the room in a reasonable range;
3 when the air conditioning system is restarted or the operation mode is changed, the target parameter is restored to the preset value Ps1 of the system.
Secondly, a heating mode; see fig. 2.
When operating in the heating mode, the exhaust pressure is preferably used as a target parameter:
1. if the system detects the exhaust pressure, namely the target parameter does not reach the set first set parameter, the system judges that the system triggers the condition for limiting the frequency rising of the compressor, and the system maintains the current running state by taking the first set parameter as the target value;
2. when the continuous time T (T is preferably 10-30 min) of the exhaust pressure reaches a set first set parameter, the air conditioning system is considered to be operated stably, and the difference value delta T between the ambient temperature T _ ai and the set temperature T _ set in the room is calculated (the delta T is T _ set-T _ ai);
2.1 when the delta T is greater than T1 (preferably 3-5 ℃ in T1), the difference between the ambient temperature in the room and the set temperature is considered to be large, the comfort is poor at the moment, the target parameter is increased by a second correction value N (preferably 0.3-0.5 bar) on the basis of the first set parameter, namely the second set parameter Pd2 is Pd1+ N, so that the frequency rise of the compressor is controlled, the heating capacity of the indoor unit is improved, and the purpose of reducing the temperature difference delta T is achieved;
2.2 when T2 is more than delta T and less than or equal to T1 (T2 is preferably 0-3 ℃, and T2 is more than T1), the difference between the temperature in the room and the set temperature is considered to be small, and the system maintains the current running state; if the target parameter meeting the first set parameter Pd1 is detected and the operation is continued for 2 times of time t, the first set parameter Pd1 is increased by a second correction value N, that is, the second set parameter Pd2 is Pd1+ N, and the frequency of the compressor is controlled to be increased in the same way;
2.3 when T3 is more than delta T and less than or equal to T2 (T3 is preferably-2-0 ℃), the temperature in the room is considered to be basically up to the set temperature, and the system maintains the current pressure target value unchanged at the moment;
2.4 when detecting that the continuous time T of the target parameter reaches the second setting parameter, determining the temperature difference Δ T again, and if Δ T > T1, increasing the target parameter by a second correction value N to be set as a third setting parameter Pd3 ═ Pd2+2 × N; if the delta T is less than or equal to T1, the second setting parameter is increased by a correction value N, and the third setting parameter Pd3 is set as Pd2+ N; if the delta T is less than or equal to T2, maintaining the current pressure target value;
2.5 if the pressure or temperature of the system reaches the set protection limit value or the target parameter does not reach the new target value, the system maintains the current target pressure value, the compressor also maintains the current running frequency, and the regulation is not carried out any more;
2.6 if the continuous time T detects that the delta T is less than or equal to T3, the environment temperature in the room is judged to reach or be higher than the set temperature, the capacity output of the air conditioning system is reduced, the current third set parameter or the second set parameter is reduced by a correction value N, the compressor is controlled to reduce the operation frequency, and the temperature in the room is controlled in a reasonable range.
And 3, when the air conditioning system is restarted or the operation mode is changed, the third setting parameter or the second setting parameter is recovered to the first setting parameter of the system.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. An adaptive adjustment method of an air conditioning system, wherein the adaptive adjustment method is used for the commercial multi-split air conditioning system, and comprises the following steps:
detecting the environmental temperature of the environment where an indoor unit is located;
detecting target parameters of the indoor unit;
acquiring the set temperature of the environment where the indoor unit is located, which is set by a user;
judging whether to execute self-adaptive adjustment of the indoor unit or not according to the difference value between the ambient temperature and the set temperature and the target parameter;
wherein the target parameter comprises at least one of compressor frequency, system pressure, and line temperature.
2. The adaptive adjusting method of an air conditioning system according to claim 1, wherein when it is determined that the adaptive adjustment of the indoor unit needs to be performed, the operating frequency of a compressor corresponding to the indoor unit is increased, so that the ambient temperature approaches or reaches the set temperature.
3. The adaptive adjusting method of an air conditioning system according to claim 1, wherein in the determining whether to perform the adaptive adjustment of the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, determining whether to perform the adaptive adjustment of the indoor unit according to whether the target parameter is lower than or higher than a first set parameter;
and after the self-adaptive adjustment of the indoor unit is judged to be executed, reducing the first setting parameter.
4. The adaptive control method of an air conditioning system according to claim 1, wherein in a cooling mode of the indoor unit, a target parameter of the indoor unit is a suction pressure in the room;
in the process of judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, if the target parameter is smaller than a first set parameter, judging not to execute the operation frequency increase of a compressor corresponding to the indoor unit; and if the target parameter is greater than or equal to the first set parameter and the difference value between the ambient temperature and the set temperature is greater than a first set difference value, judging to execute the operation of increasing the working frequency of the compressor corresponding to the indoor unit.
5. The adaptive adjusting method of claim 4, wherein if the target parameter is greater than or equal to the first setting parameter and the difference between the ambient temperature and the setting temperature is greater than a first setting difference, the first setting parameter is decreased by a first correction value to become a second setting parameter in the process of increasing the operating frequency of the compressor corresponding to the indoor unit.
6. The adaptive adjusting method of an air conditioning system according to claim 5, wherein in the process of determining whether to perform the adaptive adjustment of the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if the difference between the ambient temperature and the set temperature is greater than a first set difference, it is determined that the compressor corresponding to the indoor unit is operated at an increased operating frequency, and at the same time, the second set parameter is decreased by at least one first correction value to become a third set parameter; then, the difference value between the environment temperature and the set temperature and the target parameter are executed again.
7. The adaptive adjusting method of an air conditioning system according to claim 5, wherein in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if it is known that the difference between the ambient temperature and the set temperature is always smaller than a second set difference for a first set time and the second set difference is smaller than the first set difference, the second set parameter is increased by one of the first correction values to be restored to the first set parameter, and/or the compressor corresponding to the indoor unit is decreased in operating frequency;
and then, circularly executing the comparison between the target parameter and the first set parameter according to the difference between the environment temperature and the set temperature, and judging whether to execute the self-adaptive adjustment of the indoor unit.
8. The adaptive adjusting method of an air conditioning system according to claim 4, wherein in the process of determining whether to perform adaptive adjustment on the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter, if the difference between the ambient temperature and the set temperature is smaller than the first set difference, and the difference between the ambient temperature and the set temperature is greater than a second set difference, and it is known for a second set time that the difference between the ambient temperature and the set temperature is always smaller than the first set difference and is greater than the second set difference, the first set parameter is decreased by a first correction value to become a second set parameter.
9. The adaptive control method of an air conditioning system according to claim 1, wherein in a heating mode of the indoor unit, the target parameter of the indoor unit is an exhaust pressure in the room;
in the process of judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the ambient temperature and the set temperature and the target parameter, if the target parameter is smaller than a first set parameter, judging not to execute the operation frequency increase of a compressor corresponding to the indoor unit; if the target parameter is greater than or equal to the first set parameter and the difference value between the ambient temperature and the set temperature is greater than a first set difference value, judging to execute the operation of increasing the working frequency of a compressor corresponding to the indoor unit; at the same time, the first setting parameter is reduced by a second correction value to become a second setting parameter.
10. The adaptive control method of the air conditioning system according to any of claims 4 to 9, wherein after the air conditioning system restarts or changes an operation mode, whether to perform adaptive control of the indoor unit is determined according to a comparison between a difference between the ambient temperature and the set temperature and a comparison between the target parameter and the first set parameter.
11. An air conditioner, characterized in that, the air conditioner is commercial multi-split air conditioner, the air conditioner includes:
the first detection unit is used for detecting the ambient temperature of the environment where an indoor unit is located;
the second detection unit is used for detecting target parameters of the indoor unit; and
the control unit is used for judging whether to execute the self-adaptive adjustment of the indoor unit according to the difference value between the environment temperature and the set temperature and the target parameter;
the set temperature is the temperature of the environment where the indoor unit is located, which is set by a user, and the target parameters at least comprise at least one of compressor frequency, system pressure and pipeline temperature.
12. The air conditioner according to claim 11, wherein the control unit increases an operating frequency of a compressor corresponding to the indoor unit so that the ambient temperature approaches or reaches the set temperature in a process of determining that the adaptive adjustment of the indoor unit is performed.
13. The air conditioner according to claim 11, wherein the control unit determines whether to perform the adaptive adjustment of the indoor unit according to whether the target parameter is lower or higher than a first set parameter in the determining whether to perform the adaptive adjustment of the indoor unit according to the difference between the ambient temperature and the set temperature and the target parameter;
and reducing the first setting parameter under the condition that the difference value between the environment temperature and the setting temperature is larger than a first difference value.
14. The air conditioner according to any one of claims 11 to 13, wherein in a cooling mode of the indoor unit, a target parameter of the indoor unit is a suction pressure in the room; and/or the first and/or second light sources,
and under the heating mode of the indoor unit, the target parameter of the indoor unit is the indoor exhaust pressure.
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