CN109210674B - Control method of outdoor fan of multi-split air conditioning system and related equipment - Google Patents
Control method of outdoor fan of multi-split air conditioning system and related equipment Download PDFInfo
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- CN109210674B CN109210674B CN201810868452.XA CN201810868452A CN109210674B CN 109210674 B CN109210674 B CN 109210674B CN 201810868452 A CN201810868452 A CN 201810868452A CN 109210674 B CN109210674 B CN 109210674B
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to a control method and related equipment for an outdoor fan of a multi-split system, wherein the method comprises the following steps: acquiring operation information of the multi-split system; calculating the actual operation high pressure value of the system according to the operation information; determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value; determining a temperature control interval in which a target operation saturation temperature of the system is located according to the system operation saturation temperature value and a preset temperature control interval; the temperature control intervals are at least 2; and controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located. By adopting the method or the related equipment, the outdoor fan can be accurately controlled, and the effect of the multi-split system is improved.
Description
Technical Field
The invention relates to the technical field of electric appliance control, in particular to a control method of an outdoor fan of a multi-split system and related equipment.
Background
In the use of air conditioners, multi-split systems are increasingly widely used. Among them, control of the multi-split system is also becoming increasingly important.
In the prior art, the control of a fan in a multi-split system mainly controls a high-pressure value of the multi-split system within a range interval, and then adjusts and controls the fan. In the prior art, when the multi-split air conditioning system is controlled within the range, the multi-split air conditioning system can normally operate.
Obviously, the control of the high pressure of the multi-split air-conditioning system only has one control range section, namely, the control range section is equivalent to the range section when the multi-split air-conditioning system normally operates, and obviously, the control range section is set to be larger, so that the control precision of the multi-split air-conditioning system is lower, the adjustment of the operating temperature of a fan is not obvious, and the energy consumption of the multi-split air-conditioning system is higher.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling an outdoor fan of a multi-split air-conditioning system and related devices, which overcome the disadvantages of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method for an outdoor fan of a multi-split system comprises the following steps:
acquiring operation information of the multi-split system;
calculating the actual operation high pressure value of the system according to the operation information;
determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value;
determining a temperature control interval in which a system target operation saturation temperature is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2;
and controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located.
Optionally, a difference between a maximum value and a minimum value of the temperature control interval is 2; or the difference between the maximum value and the minimum value of the temperature control interval is 3.
Optionally, the acquiring operation information of the multiple online systems specifically includes:
determining the actual operating frequency of a compressor of the multi-split system;
and measuring the dry bulb temperature of the external environment in which the external unit of the multi-split air-conditioning system operates.
Optionally, the determining the actual operating frequency of the compressor of the multi-split system specifically includes:
acquiring system demand frequency of the multi-split system;
determining whether the compressor is operating in a dual cylinder or a single cylinder;
if the compressor operates in double cylinders, determining the actual operating frequency of the compressor as the system required frequency;
and if the compressor runs in a single cylinder, determining the actual running frequency of the compressor as the system required frequency multiplied by a set coefficient.
Optionally, the set coefficient is 2.4.
Optionally, the calculating the actual operation high-voltage value of the system according to the operation information specifically includes:
according to the formula P ═ ATRing (C)f+Bf+CTRing (C)+ D, calculating the actual operation high pressure value of the system; wherein P is the actual operation high pressure value of the system, TRing (C)The temperature of the external environment dry bulb is used, and f is the actual running frequency of the compressor; A. b, C, D is a constant.
Optionally, the determining, according to the system operation saturation temperature value and a preset temperature control interval, a temperature control interval in which the system target operation saturation temperature is located specifically includes:
determining a first temperature control interval in which the minimum temperature is located and a second temperature control interval in which the maximum temperature is located in all the temperature control intervals;
if the system operation saturation temperature value is smaller than or equal to the maximum value of the first temperature control interval, determining that the system target operation saturation temperature is located in the first temperature control interval;
if the system operation saturation temperature value is larger than or equal to the minimum value of the second temperature control interval, determining that the system target operation saturation temperature is located in the second temperature control interval;
and if the system operation saturation temperature value is between the maximum value of the first temperature control interval and the minimum value of the second temperature control interval, determining that the system target operation saturation temperature is in the temperature control interval corresponding to the system operation saturation temperature value.
A control device for an outdoor fan of a multi-split air conditioning system comprises:
the operation information acquisition module is used for acquiring the operation information of the multi-split system;
the actual operation saturation temperature value calculation module is used for calculating an actual operation high-pressure value of the system according to the operation information;
the system operation saturation temperature value determining module is used for determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value;
the control interval determining module is used for determining a temperature control interval in which the target operation saturation temperature of the system is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2;
and the temperature control module is used for controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located.
Optionally, the operation information obtaining module specifically includes:
an actual operating frequency determining unit, configured to determine an actual operating frequency of a compressor of the multi-split system;
and the dry bulb temperature determining unit is used for measuring the dry bulb temperature of the external environment in which the external machine of the multi-split system operates.
Optionally, the actual operating frequency determining unit specifically includes:
the demand frequency acquiring subunit is used for acquiring the system demand frequency of the multi-split system;
an operation mode determining subunit, configured to determine whether the compressor operates in a double cylinder or a single cylinder;
the first demand frequency determining subunit is used for determining the actual operating frequency of the compressor as the system demand frequency if the compressor operates in double cylinders;
and the second demand frequency determining subunit is used for determining the actual operating frequency of the compressor as the system demand frequency multiplied by a set coefficient if the compressor operates in a single cylinder.
Optionally, the control interval determining module specifically includes:
a temperature boundary section determining unit for determining a first temperature control section in which a minimum temperature is located and a second temperature control section in which a maximum temperature is located among all temperature control sections;
a first control interval determining unit, configured to determine that the system target operation saturation temperature is in the first temperature control interval if the system operation saturation temperature value is less than or equal to a maximum value of the first temperature control interval;
a second control interval determining unit, configured to determine that the system target operation saturation temperature is in the second temperature control interval if the system operation saturation temperature value is greater than or equal to the minimum value of the second temperature control interval;
and the third control interval determining unit is used for determining that the target system operation saturation temperature is located in the temperature control interval corresponding to the system operation saturation temperature value if the system operation saturation temperature value is located between the maximum value of the first temperature control interval and the minimum value of the second temperature control interval.
A control apparatus of an outdoor fan of a multi-split system, comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the control method of the outdoor fan of the multi-split air-conditioning system;
the processor is used for calling and executing the computer program in the memory.
An air conditioner, comprising:
the outdoor fan and the control equipment are connected with the outdoor fan;
the control device is at least used for executing the control method of the outdoor fan of the multi-split air-conditioning system.
The technical scheme provided by the application can comprise the following beneficial effects:
the application discloses a control method and relevant equipment for an outdoor fan of a multi-split system, and the method comprises the following steps: acquiring operation information of the multi-split system; calculating the actual operation high pressure value of the system according to the operation information; determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value; determining a temperature control interval in which a system target operation saturation temperature is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2; and controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located. A plurality of temperature control intervals are set in the temperature control method, the temperature control interval where the corresponding system operation saturation temperature value is located is determined according to the actual operation saturation temperature value of the multi-split air-conditioning system, and then the actual operation saturation temperature of the fan is controlled to be located in the temperature control interval. A plurality of temperature control intervals set in the application can realize the sectional control of the fan, improve the control precision of the outdoor fan of the multi-split air conditioner system and ensure that the fan works in a high-energy-efficiency state.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
fig. 1 is a flowchart of a method for controlling an outdoor fan of a multi-split air-conditioning system according to an embodiment of the present invention;
fig. 2 is a block diagram of a control device of an outdoor fan of a multi-split air-conditioning system according to a second embodiment of the present disclosure;
fig. 3 is a structural diagram of a control device according to a third embodiment of the present application;
fig. 4 is a structural diagram of an air conditioner according to a fourth embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a flowchart of a method for controlling an outdoor fan of a multi-split air-conditioning system according to an embodiment of the present invention. Referring to fig. 1, a method for controlling an outdoor fan of a multi-split air conditioning system includes:
step 101: acquiring operation information of the multi-split system;
step 102: calculating the actual operation high pressure value of the system according to the operation information;
step 103: determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value;
step 104: determining a temperature control interval in which a system target operation saturation temperature is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2;
step 105: and controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located.
Wherein the difference between the maximum value and the minimum value of the temperature control interval is 2; or the difference between the maximum value and the minimum value of the temperature control interval is 3.
According to the method, the high-voltage value of the multi-split air conditioner system is subjected to interval control, the saturation temperature corresponding to the high-voltage value of the multi-split air conditioner system is subjected to interval judgment, the interval where the actual operation saturation temperature of the system is located is determined, the high-voltage control of the multi-split air conditioner system is realized by adjusting the rotating speed of the outdoor fan, the outdoor fan of the multi-split air conditioner system can be accurately controlled by multi-interval division, high-voltage sectional control is realized, the fan is controlled to operate within a reasonable range, the energy efficiency is guaranteed to be relatively excellent, and the method is energy-.
Further, a method for controlling an outdoor fan of a multi-split system is specifically described:
determining the actual operating frequency of a compressor of the multi-split system;
measuring the dry bulb temperature of the external environment in which an external machine of the multi-split system runs;
according to the formula P ═ ATRing (C)f+Bf+CTRing (C)+ D, calculating the actual operation high pressure value of the system; wherein P is the actual operation high pressure value of the system, TRing (C)The temperature of the external environment dry bulb is used, and f is the actual running frequency of the compressor; A. b, C, D is a constant; it should be noted that A, B, C, D is not fixed to a unique value here, and the skilled person in the art would be able to do soThe operator may be preset as appropriate.
Determining a temperature control interval in which a system target operation saturation temperature is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2;
and controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located.
The determining the actual operating frequency of the compressor of the multi-split system specifically comprises the following steps:
acquiring system demand frequency of the multi-split system;
determining whether the compressor is operating in a dual cylinder or a single cylinder;
if the compressor operates in double cylinders, determining the actual operating frequency of the compressor as the system required frequency;
if the compressor runs in a single cylinder, determining the actual running frequency of the compressor as the system required frequency multiplied by a set coefficient; the coefficient was set to 2.4.
Further, determining a temperature control interval in which the target system operation saturation temperature is located according to the system operation saturation temperature value and a preset temperature control interval specifically includes:
determining a first temperature control interval in which the minimum temperature is located and a second temperature control interval in which the maximum temperature is located in all the temperature control intervals;
if the system operation saturation temperature value is smaller than or equal to the maximum value of the first temperature control interval, determining that the system target operation saturation temperature is located in the first temperature control interval;
if the system operation saturation temperature value is larger than or equal to the minimum value of the second temperature control interval, determining that the system target operation saturation temperature is located in the second temperature control interval;
and if the system operation saturation temperature value is between the maximum value of the first temperature control interval and the minimum value of the second temperature control interval, determining that the system target operation saturation temperature is in the temperature control interval corresponding to the system operation saturation temperature value.
By adopting the method, the temperature control intervals are multiple, the range value of each interval is smaller and can be 2 or 3, on the basis, the method realizes the sectional control of the outdoor fan of the multi-split air-conditioning system, and the control accuracy of the fan is greatly improved. In the method, the actual operation high-pressure value of the system can be accurately calculated according to a formula, so that an accurate system operation protection temperature value corresponding to the actual operation high-pressure value of the system is obtained, a temperature control interval in which the target operation saturation temperature of the system is located can be accurately determined according to the system operation protection temperature value, and the fan is accurately controlled. Through the control of the high-voltage section, the operating frequency range of the fan is extremely wide, the problem that the noise problem shields the non-operating frequency generated by the fan frequency point can be avoided, the reliability of the system is greatly improved, and the service life of the fan is ensured.
The temperature control interval will now be exemplified by taking the difference between the maximum value and the minimum value of the temperature control interval as 2:
the preset temperature control interval is as follows: [31 ℃, 33 ℃), [33 ℃, 35 ℃), [35 ℃, 37 ℃), [37 ℃, 39 ℃), [39 ℃, 41 ℃), and [41 ℃, 43 ℃);
firstly, obtaining a system operation saturation temperature value through calculation, and then judging according to the system operation saturation temperature value, and controlling the system target operation high-pressure side saturation temperature to be at [31 ℃ and 33 ℃) when the calculated value of the system high-pressure side saturation temperature is lower than 33 ℃;
when the calculated value of the saturation temperature of the high-pressure side of the system is at [33 ℃ and 35 ℃), controlling the saturation temperature of the target operation high-pressure side of the system to be at [33 ℃ and 35 ℃);
when the calculated value of the saturation temperature of the high-pressure side of the system is at [35 ℃ and 37 ℃), controlling the saturation temperature of the target operation high-pressure side of the system to be at [35 ℃ and 37 ℃);
when the calculated value of the saturation temperature of the high-pressure side of the system is at [37 ℃ and 39 ℃), controlling the saturation temperature of the target operation high-pressure side of the system to be at [37 ℃ and 39 ℃);
when the calculated value of the saturation temperature of the high-pressure side of the system is at [39 ℃ and 41 ℃), controlling the saturation temperature of the target operation high-pressure side of the system to be at [39 ℃ and 41 ℃);
and when the calculated saturation temperature value of the high-pressure side of the system is greater than or equal to 41 ℃, controlling the saturation temperature of the high-pressure side of the target operation of the system to be [41 ℃ and 43 ℃).
Accurate control can be carried out to the outdoor fan of the multi-split air conditioning system through a plurality of temperature control intervals, and efficient work is achieved.
It should be noted that in the technical field, the system operation saturation temperature value may also be referred to as a system operation high pressure, the temperature control interval may also be referred to as a high pressure control interval, the target operation saturation temperature may also be referred to as a target high pressure, and the actual operation saturation temperature may also be referred to as an actual high pressure, where a change in the name does not change the implementation of the scheme of the present application, and does not affect the implementation effect of the scheme of the present application, and a person skilled in the art may determine the case.
Fig. 2 is a block diagram of a control device of an outdoor fan of a multi-split air-conditioning system according to a second embodiment of the present application. Referring to fig. 2, a control apparatus of an outdoor fan of a multi-split system includes:
an operation information obtaining module 201, configured to obtain operation information of the multi-split system;
the actual operation saturation temperature value calculation module 202 is used for calculating an actual operation high pressure value of the system according to the operation information;
the system operation saturation temperature value determining module 203 is configured to determine a corresponding system operation saturation temperature value according to the actual system operation high pressure value;
a control interval determining module 204, configured to determine, according to the system operation saturation temperature value and a preset temperature control interval, a temperature control interval in which a system target operation saturation temperature is located; the number of the temperature control intervals is at least 2; the difference value between the maximum value and the minimum value of the temperature control interval is 2; or the difference value between the maximum value and the minimum value of the temperature control interval is 3;
and the temperature control module 205 is configured to control the rotation speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located.
Further, the operation information obtaining module 201 specifically includes:
an actual operating frequency determining unit, configured to determine an actual operating frequency of a compressor of the multi-split system;
and the dry bulb temperature determining unit is used for measuring the dry bulb temperature of the external environment in which the external machine of the multi-split system operates.
Wherein, the actual operation frequency determining unit specifically comprises:
the demand frequency acquiring subunit is used for acquiring the system demand frequency of the multi-split system;
an operation mode determining subunit, configured to determine whether the compressor operates in a double cylinder or a single cylinder;
the first demand frequency determining subunit is used for determining the actual operating frequency of the compressor as the system demand frequency if the compressor operates in double cylinders;
and the second demand frequency determining subunit is used for determining the actual operating frequency of the compressor as the system demand frequency multiplied by a set coefficient if the compressor operates in a single cylinder.
The actual operation saturation temperature value calculation module 202 specifically includes: according to the formula P ═ ATRing (C)f+Bf+CTRing (C)+ D, calculating the actual operation high pressure value of the system; wherein P is the actual operation high pressure value of the system, TRing (C)The temperature of the external environment dry bulb is used, and f is the actual running frequency of the compressor; A. b, C, D is a constant.
Further, the control interval determining module 204 specifically includes:
a temperature boundary section determining unit for determining a first temperature control section in which a minimum temperature is located and a second temperature control section in which a maximum temperature is located among all temperature control sections;
a first control interval determining unit, configured to determine that the system target operation saturation temperature is in the first temperature control interval if the system operation saturation temperature value is less than or equal to a maximum value of the first temperature control interval;
a second control interval determining unit, configured to determine that the system target operation saturation temperature is in the second temperature control interval if the system operation saturation temperature value is greater than or equal to the minimum value of the second temperature control interval;
and the third control interval determining unit is used for determining that the target system operation saturation temperature is located in the temperature control interval corresponding to the system operation saturation temperature value if the system operation saturation temperature value is located between the maximum value of the first temperature control interval and the minimum value of the second temperature control interval.
The device is adopted to divide the temperature control interval into a plurality of intervals, the range value of each interval is smaller and can be 2 or 3, on the basis, the method realizes the segmented control of the outdoor fan of the multi-split air conditioner system, and the control accuracy of the fan is greatly improved. In the method, the actual operation high-pressure value of the system can be accurately calculated according to a formula, so that an accurate system operation protection temperature value corresponding to the actual operation high-pressure value of the system is obtained, a temperature control interval in which the target operation saturation temperature of the system is located can be accurately determined according to the system operation protection temperature value, and the fan is accurately controlled.
Fig. 3 is a structural diagram of a control device according to a third embodiment of the present application. Referring to fig. 3, a control apparatus of an outdoor fan of a multi-split system includes:
a processor 301, and a memory 302 connected to the processor;
the memory 302 is configured to store a computer program, where the computer program is at least configured to execute the method for controlling the outdoor fan of the multi-split air-conditioning system;
the processor 301 is used for calling and executing the computer program in the memory 302.
In this embodiment, the control method of the outdoor fan of the multi-split system described above is adopted, so that similar beneficial effects are achieved, and details are not repeated here.
Fig. 4 is a structural diagram of an air conditioner according to a fourth embodiment of the present application. Referring to fig. 4, an air conditioner includes:
an outdoor fan 401 and a control device 402 connected to the outdoor fan;
the control device 402 is at least used for executing the control method of the outdoor fan of the multi-split air-conditioning system as described above.
In this embodiment, the control method of the outdoor fan of the multi-split system described above is adopted, so that similar beneficial effects are achieved, and details are not repeated here.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A control method for an outdoor fan of a multi-split system is characterized by comprising the following steps:
acquiring operation information of the multi-split system;
calculating the actual operation high pressure value of the system according to the operation information;
determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value;
determining a temperature control interval in which a system target operation saturation temperature is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2;
controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located;
the acquiring of the operation information of the multi-split system specifically includes:
determining the actual operating frequency of a compressor of the multi-split system;
measuring the dry bulb temperature of the external environment in which an external machine of the multi-split system runs;
the calculating of the actual operation high-voltage value of the system according to the operation information specifically comprises the following steps:
according to the formula P = ATRing (C)f+Bf+CTRing (C)+ D, calculating the actual operation high pressure value of the system; wherein P is the actual operation high pressure value of the system, TRing (C)The temperature of the external environment dry bulb is used, and f is the actual running frequency of the compressor; A. b, C, D is a constant.
2. The method for controlling the outdoor fan of the multi-split air conditioning system according to claim 1, wherein a difference between a maximum value and a minimum value of the temperature control interval is 2; or the difference between the maximum value and the minimum value of the temperature control interval is 3.
3. The method for controlling the outdoor fan of the multi-split air-conditioning system according to claim 2, wherein the determining the actual operating frequency of the compressor of the multi-split air-conditioning system specifically comprises:
acquiring system demand frequency of the multi-split system;
determining whether the compressor is operating in a dual cylinder or a single cylinder;
if the compressor operates in double cylinders, determining the actual operating frequency of the compressor as the system required frequency;
and if the compressor runs in a single cylinder, determining the actual running frequency of the compressor as the system required frequency multiplied by a set coefficient.
4. The method for controlling outdoor fans of a multi-split system according to claim 3, wherein the set coefficient is 2.4.
5. The method for controlling the outdoor fan of the multi-split air conditioning system according to claim 1, wherein the step of determining the temperature control interval in which the target operation saturation temperature of the system is located according to the system operation saturation temperature value and a preset temperature control interval specifically comprises the steps of:
determining a first temperature control interval in which the minimum temperature is located and a second temperature control interval in which the maximum temperature is located in all the temperature control intervals;
if the system operation saturation temperature value is smaller than or equal to the maximum value of the first temperature control interval, determining that the system target operation saturation temperature is located in the first temperature control interval;
if the system operation saturation temperature value is larger than or equal to the minimum value of the second temperature control interval, determining that the system target operation saturation temperature is located in the second temperature control interval;
and if the system operation saturation temperature value is between the maximum value of the first temperature control interval and the minimum value of the second temperature control interval, determining that the system target operation saturation temperature is in the temperature control interval corresponding to the system operation saturation temperature value.
6. The utility model provides a controlling means of outdoor fan of multi-split air-conditioning system which characterized in that includes:
the operation information acquisition module is used for acquiring the operation information of the multi-split system;
the actual operation saturation temperature value calculation module is used for calculating an actual operation high-pressure value of the system according to the operation information;
the system operation saturation temperature value determining module is used for determining a corresponding system operation saturation temperature value according to the actual system operation high pressure value;
the control interval determining module is used for determining a temperature control interval in which the target operation saturation temperature of the system is located according to the system operation saturation temperature value and a preset temperature control interval; the number of the temperature control intervals is at least 2;
the temperature control module is used for controlling the rotating speed of the outdoor fan to ensure that the actual operation saturation temperature of the system is in a temperature control interval where the target operation saturation temperature of the system is located;
the operation information obtaining module specifically comprises:
an actual operating frequency determining unit, configured to determine an actual operating frequency of a compressor of the multi-split system;
a dry bulb temperature determination unit for measuring the dry bulb temperature of the external environment in which the external unit of the multi-split air-conditioning system operates
The system operation saturation temperature value determination module is specifically configured to:
according to the formula P = ATRing (C)f+Bf+CTRing (C)+ D, calculating the actual operation high pressure value of the system; wherein P is the actual operation high pressure value of the system, TRing (C)The temperature of the external environment dry bulb is used, and f is the actual running frequency of the compressor; A. b, C, D is a constant.
7. The device for controlling the outdoor fan of the multi-split air conditioning system according to claim 6, wherein the actual operating frequency determining unit specifically includes:
the demand frequency acquiring subunit is used for acquiring the system demand frequency of the multi-split system;
an operation mode determining subunit, configured to determine whether the compressor operates in a double cylinder or a single cylinder;
the first demand frequency determining subunit is used for determining the actual operating frequency of the compressor as the system demand frequency if the compressor operates in double cylinders;
and the second demand frequency determining subunit is used for determining the actual operating frequency of the compressor as the system demand frequency multiplied by a set coefficient if the compressor operates in a single cylinder.
8. The device for controlling the outdoor fan of the multi-split air conditioning system according to claim 6, wherein the control section determining module specifically includes:
a temperature boundary section determining unit for determining a first temperature control section in which a minimum temperature is located and a second temperature control section in which a maximum temperature is located among all temperature control sections;
a first control interval determining unit, configured to determine that the system target operation saturation temperature is in the first temperature control interval if the system operation saturation temperature value is less than or equal to a maximum value of the first temperature control interval;
a second control interval determining unit, configured to determine that the system target operation saturation temperature is in the second temperature control interval if the system operation saturation temperature value is greater than or equal to the minimum value of the second temperature control interval;
and the third control interval determining unit is used for determining that the target system operation saturation temperature is located in the temperature control interval corresponding to the system operation saturation temperature value if the system operation saturation temperature value is located between the maximum value of the first temperature control interval and the minimum value of the second temperature control interval.
9. The utility model provides a controlgear of outdoor fan of multi-online system which characterized in that includes:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program at least for executing the control method of the outdoor fan of the multi-split system as set forth in any one of claims 1 to 5;
the processor is used for calling and executing the computer program in the memory.
10. An air conditioner, comprising:
the outdoor fan and the control equipment are connected with the outdoor fan;
the control device is at least used for executing the control method of the outdoor fan of the multi-split air system as set forth in any one of claims 1 to 5.
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| CN102356283A (en) * | 2009-03-19 | 2012-02-15 | 大金工业株式会社 | Air conditioning device |
| CN104807139A (en) * | 2015-04-24 | 2015-07-29 | 广东美的制冷设备有限公司 | Control method of air conditioner and control device |
| CN107120809A (en) * | 2017-06-13 | 2017-09-01 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning system, device and air-conditioning system |
| CN107642879A (en) * | 2017-11-03 | 2018-01-30 | 广东美的暖通设备有限公司 | A kind of control method of air-conditioning system, device and air conditioner |
| CN107917511A (en) * | 2017-10-31 | 2018-04-17 | 青岛海尔空调器有限总公司 | A kind of control method and device of outdoor fan of air-conditioner rotating speed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6671183B2 (en) * | 2016-02-02 | 2020-03-25 | 東芝キヤリア株式会社 | Refrigeration cycle device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102356283A (en) * | 2009-03-19 | 2012-02-15 | 大金工业株式会社 | Air conditioning device |
| CN104807139A (en) * | 2015-04-24 | 2015-07-29 | 广东美的制冷设备有限公司 | Control method of air conditioner and control device |
| CN107120809A (en) * | 2017-06-13 | 2017-09-01 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning system, device and air-conditioning system |
| CN107917511A (en) * | 2017-10-31 | 2018-04-17 | 青岛海尔空调器有限总公司 | A kind of control method and device of outdoor fan of air-conditioner rotating speed |
| CN107642879A (en) * | 2017-11-03 | 2018-01-30 | 广东美的暖通设备有限公司 | A kind of control method of air-conditioning system, device and air conditioner |
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