CN109210673B - Control method and device of outdoor fan and air conditioning system - Google Patents
Control method and device of outdoor fan and air conditioning system Download PDFInfo
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- CN109210673B CN109210673B CN201810867528.7A CN201810867528A CN109210673B CN 109210673 B CN109210673 B CN 109210673B CN 201810867528 A CN201810867528 A CN 201810867528A CN 109210673 B CN109210673 B CN 109210673B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004378 air conditioning Methods 0.000 title claims abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 6
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- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- 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
- F24F11/72—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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- 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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- 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 a control device of an outdoor fan and an air conditioning system, wherein the method comprises the following steps: acquiring industrial control parameter information; determining a target high-voltage value according to the industrial control parameter information; determining a target saturation temperature value according to the target high pressure value; and controlling the operation parameters of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range. According to the invention, a target high pressure value is calculated through the frequency of a compressor and the temperature of the external environment, and a target saturation temperature value is determined according to the target high pressure value; finally, the operating frequency of the outdoor fan is adjusted according to the target saturation temperature value, so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range, the high-pressure is accurately controlled, the output of idle work of a unit is reduced, and the improvement of comfort and the reduction of energy consumption are facilitated.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a control method and device of an outdoor fan and an air conditioning system.
Background
At present, the existing multi-split air blower control mode mainly controls the high pressure of a system within a certain range, so that the reliable operation of the air blower is ensured. With the development of science and technology, people have higher and higher requirements on the comfort, energy conservation and environmental protection of multi-split air conditioners. The existing multi-split air blower system has low pressure control precision, especially for the conditions of high-temperature working condition (a refrigeration operation mode of the external environment above 40 ℃) and low-temperature working condition (a refrigeration operation mode of the external environment below 25 ℃) and the condition of approaching a temperature point (the multi-split air blower system operates to a state of approaching a set temperature), so that the comfort of the multi-split air blower is poor and the energy consumption is high, the existing multi-split air blower control mode cannot meet the market demand to the maximum extent, and based on the above, the seeking of an accurate, efficient and energy-saving multi-split air blower system control method becomes a very important thing.
In addition, for a multi-split air-conditioning system, in the prior art, the operation state of the system is judged by checking the pressure value of the system, but when the system is judged to be in a supercooling degree or a superheat degree state, the operation state of the system cannot be accurately judged in time only through the pressure value of the system.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for controlling an outdoor fan, and an air conditioning system.
In order to achieve the purpose, the invention adopts the following technical scheme: a control method of an outdoor fan comprises the following steps:
acquiring industrial control parameter information;
determining a target high-voltage value according to the industrial control parameter information;
determining a target saturation temperature value according to the target high pressure value;
and controlling the operation parameters of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range.
Optionally, the industrial control parameter information includes:
the outside ambient temperature and the operating frequency of the compressor.
Optionally, the determining a target high pressure value according to the industrial control parameter includes:
when the external environment temperature is greater than a preset high-temperature threshold value, determining that a target high-pressure value is a fixed first high-pressure value; alternatively, the first and second electrodes may be,
when the external environment temperature is smaller than a preset low-temperature threshold value, determining that the target high-pressure value is a fixed second high-pressure value; alternatively, the first and second electrodes may be,
and when the external environment temperature is between a preset high-temperature threshold and a preset low-temperature threshold, calculating to obtain a target high-pressure value according to the external environment temperature and the running frequency of the compressor.
Optionally, the first high pressure value is greater than the second high pressure value.
Optionally, the calculating the target high pressure value according to the external environment temperature and the operating frequency of the compressor includes:
when the operating frequency of the compressor is less than or equal to a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature and the operating frequency of the compressor as calculation parameters; alternatively, the first and second electrodes may be,
and when the running frequency of the compressor is greater than a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature as a calculation parameter.
Optionally, the target high pressure value is in a direct relationship with the external ambient temperature and the operating frequency of the compressor.
Optionally, the operating parameters of the outdoor fan include: the operating frequency of the outdoor fan.
Optionally, the controlling the operation parameters of the outdoor fan according to the target saturation temperature value includes:
if the current high-pressure saturation temperature value of the system is larger than or equal to the target saturation temperature value, increasing the operating frequency of the outdoor fan to reduce the high-pressure saturation temperature value of the system; alternatively, the first and second electrodes may be,
and if the current high-pressure saturation temperature value of the system is smaller than the target saturation temperature value, reducing the operating frequency of the outdoor fan so as to improve the high-pressure saturation temperature value of the system.
The present invention also provides a control device for an outdoor fan, comprising:
the acquisition module is used for acquiring industrial control parameter information;
the first determination module is used for determining a target high-voltage value according to the industrial control parameter information;
the second determination module is used for determining a target saturation temperature value according to the target high-pressure value;
and the control module is used for controlling the operating parameters of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range.
The present invention also provides an outdoor fan, comprising: a device as hereinbefore described.
The present invention also provides an air conditioning system comprising: such as the outdoor fan described above.
By adopting the technical scheme, the control method of the outdoor fan comprises the following steps: acquiring industrial control parameter information, and determining a target high-voltage value according to the industrial control parameter information; determining a target saturation temperature value according to the target high pressure value; and controlling the operation parameters of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range. According to the invention, a target high pressure value is calculated through the frequency of a compressor and the temperature of the external environment, and a target saturation temperature value is determined according to the target high pressure value; and finally, adjusting the operating frequency of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range. The invention realizes the accurate control of high voltage, reduces the output of idle work of the machine set, and is beneficial to improving the comfort and reducing the energy consumption.
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 described 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 schematic flow chart of a first embodiment of a method for controlling an outdoor fan according to the present invention;
FIG. 2 is a schematic flow chart of a second embodiment of a method for controlling an outdoor fan according to the present invention;
fig. 3 is a schematic structural diagram of a first control device of an outdoor fan according to an embodiment of the present invention.
In the figure: 1. an acquisition module; 2. a first determination module; 3. a second determination module; 4. and a control module.
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 schematic flowchart of an outdoor fan control method according to an embodiment of the present invention.
As shown in fig. 1, the method of the present embodiment includes:
s11: acquiring industrial control parameter information;
further, the industrial control parameter information includes:
the outside ambient temperature and the operating frequency of the compressor.
S12: determining a target high-voltage value according to the industrial control parameter information;
further, the determining a target high-voltage value according to the industrial control parameter information includes:
when the external environment temperature is greater than a preset high-temperature threshold value, determining that a target high-pressure value is a fixed first high-pressure value; alternatively, the first and second electrodes may be,
when the external environment temperature is smaller than a preset low-temperature threshold value, determining that the target high-pressure value is a fixed second high-pressure value; alternatively, the first and second electrodes may be,
and when the external environment temperature is between a preset high-temperature threshold and a preset low-temperature threshold, calculating to obtain a target high-pressure value according to the external environment temperature and the running frequency of the compressor.
Specifically, the first high pressure value is greater than the second high pressure value.
Further, the calculating the target high pressure value according to the external environment temperature and the operating frequency of the compressor includes:
when the operating frequency of the compressor is less than or equal to a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature and the operating frequency of the compressor as calculation parameters; alternatively, the first and second electrodes may be,
and when the running frequency of the compressor is greater than a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature as a calculation parameter.
It should be noted that the target high pressure value is in a direct relationship with the external ambient temperature and the operating frequency of the compressor.
S13: determining a target saturation temperature value according to the target high pressure value;
the target high pressure value and the saturation temperature value are in one-to-one correspondence, so that the saturation temperature value is obtained by correspondingly converting the target high pressure value, and the converted saturation temperature value is the target saturation temperature value.
In the prior art, the conversion process adopts a mode of rounding off an integer, so that the pressure control precision of a system is too low, the data deviation is large, and the precision range of the target saturation temperature can be adjusted by adopting the mode, so that the target saturation temperature is accurate to 0.1 ℃. That is, the tolerance range of the target high pressure value (for example, the target high pressure value ± 20KPa) is obtained according to the calculated target high pressure value, and then the tolerance range of the target saturation temperature (the accuracy range is ± 0.5 ℃) is calculated according to the tolerance range of the target high pressure value.
The tolerance range of the target saturation temperature value is determined according to the target high pressure value, and the method can be realized through the following two ways: one mode is that a target saturation temperature value is converted through a target high-pressure value, and then a tolerance range of the target saturation temperature is obtained according to the target saturation temperature value, wherein the target saturation temperature value is +/-0.5 ℃;
the other mode is that an allowance range of the target high-pressure value (for example, the target high-pressure value is +/-20 KPa) is obtained through the target high-pressure value, then upper and lower boundary high-pressure values in the allowance range of the target high-pressure value are converted, corresponding maximum saturation temperature value and minimum saturation temperature value are respectively converted, and a range determined by the maximum saturation temperature value and the minimum saturation temperature value is the allowance range of the target saturation temperature value.
S14: and controlling the operation parameters of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range.
Further, the operating parameters of the outdoor fan include: the operating frequency of the outdoor fan.
Further, the controlling the operation parameters of the outdoor fan according to the target saturation temperature value includes:
if the current high-pressure saturation temperature value of the system is larger than or equal to the target saturation temperature value, increasing the operating frequency of the outdoor fan to reduce the high-pressure saturation temperature value of the system; alternatively, the first and second electrodes may be,
and if the current high-pressure saturation temperature value of the system is smaller than the target saturation temperature value, reducing the operating frequency of the outdoor fan so as to improve the high-pressure saturation temperature value of the system.
The control method of the embodiment relates a target high pressure value of a system with a compressor frequency of the system and an external environment temperature, calculates a corresponding target high pressure value according to the compressor frequency and the external environment temperature, and determines a target saturation temperature value according to the target high pressure value; and finally, adjusting the operating frequency of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range. Compared with the prior art, the preset precision range is higher in precision, the high-voltage precise positioning and precise control are realized, the output of the idle work of the unit is reduced, and high efficiency and energy conservation are facilitated.
Fig. 2 is a schematic flowchart of an outdoor fan control method according to a second embodiment of the present invention.
The control method of the second embodiment comprises the following steps:
s21: acquiring industrial control parameter information;
further, the industrial control parameter information includes:
the outside ambient temperature (which refers to the outside ambient dry bulb temperature) and the operating frequency of the compressor.
It can be understood that in practical use, there are single-cylinder, double-cylinder and even multi-cylinder models for the compressor. For convenience of logic control, the target high-pressure value is calculated according to the running frequency of the double-cylinder compressor when the compressor is used, and if the model of the compressor is single-cylinder or multi-cylinder in use, the single-cylinder or multi-cylinder frequency can be converted into the double-cylinder frequency.
S22: determining a target high-voltage value according to the industrial control parameter information;
further, a target high pressure value is determined according to the industrial control parameter information. Firstly, a fitting curve representing the relation between the running frequency of the compressor and the target high-pressure value can be fitted according to actually measured data, and then the corresponding target high-pressure value is obtained by utilizing the fitting curve and according to the running frequency of the compressor and the external environment dry-bulb temperature.
S23: determining a target saturation temperature value according to the target high pressure value;
the target high pressure value and the saturation temperature value are in one-to-one correspondence, so that the saturation temperature value is obtained by correspondingly converting the target high pressure value, and the converted saturation temperature value is the target saturation temperature value.
S24: if the current high-pressure saturation temperature value of the system is larger than or equal to the target saturation temperature value, increasing the operating frequency of the outdoor fan to reduce the high-pressure saturation temperature value of the system;
s25: and if the current high-pressure saturation temperature value of the system is smaller than the target saturation temperature value, reducing the operating frequency of the outdoor fan so as to improve the high-pressure saturation temperature value of the system.
It should be noted that the target saturation temperature values described in steps S24 and S25 may be understood as a temperature range of ± 0.5 ℃ around the target saturation temperature value.
And enabling the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value to be within a preset precision range through the steps S24 and S25.
According to the embodiment, after the operation frequency of the compressor and the external environment temperature are determined, a target high-pressure value can be obtained, a target saturation temperature value is determined according to the target high-pressure value, and the purpose of high operation energy efficiency of the outdoor fan unit is achieved by controlling the high-pressure saturation temperature value of the system to operate near the target saturation temperature value.
According to the embodiment, the target high-pressure value is accurately calculated under the high-temperature working condition and the low-temperature working condition, so that the control precision of the fan system on the pressure is favorably improved, the comfort is improved, and the energy consumption of the extension set is reduced.
In the tolerance range of the target high-pressure value, at least five frequency points of the outdoor fan can operate, the operable range of the fan is wide enough, the problem of short service life caused by frequent switching of the operating frequency is avoided to a great extent, and meanwhile, the failure rate of the outdoor fan can be reduced. Under the condition of ensuring energy consumption output, the fan is accurately controlled to operate within a reasonable range, the energy efficiency is ensured to be optimal, and the energy-saving and environment-friendly effects are achieved.
In addition, for a system for controlling a high-pressure value, an accurate pressure value often cannot help to judge the state of the system, and the system can be judged to be in a supercooling degree or superheat degree state through a high-pressure saturation temperature value of the system, so that the running state of the system can be known in time.
As shown in fig. 3, the present invention further provides an implementation manner of a control device of an outdoor fan, where the control device in the first embodiment includes:
the acquisition module 1 is used for acquiring industrial control parameter information;
the first determining module 2 is used for determining a target high-voltage value according to the industrial control parameter information;
the second determining module 3 is used for determining a target saturation temperature value according to the target high-pressure value;
and the control module 4 is used for controlling the operating parameters of the outdoor fan according to the target saturation temperature value, so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range.
The industrial control parameter information acquired by the acquisition module 1 includes:
the outside ambient temperature and the operating frequency of the compressor.
Further, the determining module 2 determines a target high-voltage value according to the industrial control parameter information, and includes:
when the external environment temperature is greater than a preset high-temperature threshold value, determining that a target high-pressure value is a fixed first high-pressure value; alternatively, the first and second electrodes may be,
when the external environment temperature is smaller than a preset low-temperature threshold value, determining that the target high-pressure value is a fixed second high-pressure value; alternatively, the first and second electrodes may be,
and when the external environment temperature is between a preset high-temperature threshold and a preset low-temperature threshold, calculating to obtain a target high-pressure value according to the external environment temperature and the running frequency of the compressor.
Specifically, the first high pressure value is greater than the second high pressure value.
Further, the calculating the target high pressure value according to the external environment temperature and the operating frequency of the compressor includes:
when the operating frequency of the compressor is less than or equal to a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature and the operating frequency of the compressor as calculation parameters; alternatively, the first and second electrodes may be,
and when the running frequency of the compressor is greater than a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature as a calculation parameter.
It should be noted that the target high pressure value is in a direct relationship with the external ambient temperature and the operating frequency of the compressor.
Further, the second determining module 3 determines a target saturation temperature value according to the target high pressure value.
The target high pressure value and the saturation temperature value are in one-to-one correspondence, so that the saturation temperature value is obtained by correspondingly converting the target high pressure value, and the converted saturation temperature value is the target saturation temperature value.
Further, the control module 4 controls the operation parameters of the outdoor fan according to the target saturation temperature value.
Specifically, the operating parameters of the outdoor fan include: the operating frequency of the outdoor fan.
Further, the control module 4 controls an operation parameter of the outdoor fan according to the target saturation temperature value, and specifically may include:
if the current high-pressure saturation temperature value of the system is larger than or equal to the target saturation temperature value, increasing the operating frequency of the outdoor fan to reduce the high-pressure saturation temperature value of the system; alternatively, the first and second electrodes may be,
and if the current high-pressure saturation temperature value of the system is smaller than the target saturation temperature value, reducing the operating frequency of the outdoor fan so as to improve the high-pressure saturation temperature value of the system.
The control device of the embodiment relates a target high pressure value of a system with a compressor frequency of the system and an external environment temperature, calculates a corresponding target high pressure value according to the compressor frequency and the external environment temperature through a first determining module 2, and determines a target saturation temperature value according to the target high pressure value through a second determining module 3; finally, the control module 4 adjusts the operating frequency of the outdoor fan according to the target saturation temperature value, so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range. The control device of the embodiment realizes the accurate positioning and accurate control of high voltage, reduces the output of idle work of the machine set, and is beneficial to realizing the high efficiency and energy saving of outdoor extension sets.
In addition, the present invention also provides an outdoor fan, comprising: the apparatus as described in figure 3.
The present invention also provides an outdoor fan system, comprising: such as the outdoor fan described above.
Further, the system is a side-air-out multi-online outdoor fan system.
The outdoor fan system is an air conditioning system.
The control device is adopted in the side-air-out multi-split outdoor fan system, so that the comfort of the multi-split outdoor fan system is improved, and the energy consumption is reduced.
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.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
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.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 (8)
1. A control method of an outdoor fan is characterized by comprising the following steps:
acquiring industrial control parameter information;
determining a target high-voltage value according to the industrial control parameter information;
determining a target saturation temperature value according to the target high pressure value;
controlling the operation parameters of the outdoor fan according to the target saturation temperature value so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range;
wherein, the industrial control parameter information comprises:
the outside ambient temperature and the operating frequency of the compressor;
the determining a target high pressure value according to the industrial control parameter information comprises:
when the external environment temperature is greater than a preset high-temperature threshold value, determining that a target high-pressure value is a fixed first high-pressure value; or when the external environment temperature is smaller than a preset low-temperature threshold value, determining that the target high-pressure value is a fixed second high-pressure value; or when the external environment temperature is between a preset high temperature threshold and a preset low temperature threshold, calculating according to the external environment temperature and the running frequency of the compressor to obtain a target high pressure value;
the determining a target saturation temperature value according to the target high pressure value includes:
and determining saturation temperature values corresponding to the target high pressure values one by one according to the target high pressure values, and determining the saturation temperature values as target saturation temperature values.
2. The method of claim 1, wherein the first high pressure value is greater than the second high pressure value.
3. The method of claim 1, wherein calculating a target high pressure value based on the external ambient temperature and an operating frequency of a compressor comprises:
when the operating frequency of the compressor is less than or equal to a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature and the operating frequency of the compressor as calculation parameters; alternatively, the first and second electrodes may be,
and when the running frequency of the compressor is greater than a preset frequency threshold value, calculating to obtain a target high-pressure value by taking the external environment temperature as a calculation parameter.
4. The method of any of claims 1-3, wherein the operating parameters of the outdoor fan comprise: the operating frequency of the outdoor fan.
5. The method of claim 4, wherein controlling the operating parameters of the outdoor fan based on the target saturation temperature value comprises:
if the current high-pressure saturation temperature value of the system is larger than or equal to the target saturation temperature value, increasing the operating frequency of the outdoor fan to reduce the high-pressure saturation temperature value of the system; alternatively, the first and second electrodes may be,
and if the current high-pressure saturation temperature value of the system is smaller than the target saturation temperature value, reducing the operating frequency of the outdoor fan so as to improve the high-pressure saturation temperature value of the system.
6. A control device of an outdoor fan, comprising:
the acquisition module is used for acquiring industrial control parameter information;
the first determination module is used for determining a target high-voltage value according to the industrial control parameter information;
the second determination module is used for determining a target saturation temperature value according to the target high-pressure value;
the control module is used for controlling the operating parameters of the outdoor fan according to the target saturation temperature value, so that the difference value between the high-pressure saturation temperature value of the system to which the outdoor fan belongs and the target saturation temperature value is within a preset precision range;
wherein, the industrial control parameter information comprises:
the outside ambient temperature and the operating frequency of the compressor;
the determining a target high pressure value according to the industrial control parameter information comprises:
when the external environment temperature is greater than a preset high-temperature threshold value, determining that a target high-pressure value is a fixed first high-pressure value; or when the external environment temperature is smaller than a preset low-temperature threshold value, determining that the target high-pressure value is a fixed second high-pressure value; or when the external environment temperature is between a preset high temperature threshold and a preset low temperature threshold, calculating according to the external environment temperature and the running frequency of the compressor to obtain a target high pressure value;
the determining a target saturation temperature value according to the target high pressure value includes:
and determining saturation temperature values corresponding to the target high pressure values one by one according to the target high pressure values, and determining the saturation temperature values as target saturation temperature values.
7. An outdoor fan, comprising: the apparatus of claim 6.
8. An air conditioning system, comprising: the outdoor fan of claim 7.
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