CN106052041B - Air conditioner refrigerating control method and control device - Google Patents
Air conditioner refrigerating control method and control device Download PDFInfo
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- CN106052041B CN106052041B CN201610547457.3A CN201610547457A CN106052041B CN 106052041 B CN106052041 B CN 106052041B CN 201610547457 A CN201610547457 A CN 201610547457A CN 106052041 B CN106052041 B CN 106052041B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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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
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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
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
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Abstract
The invention discloses a kind of air conditioner refrigerating control method and control devices, the described method includes: obtaining real-time indoor environment temperature and setting indoor target temperature, the temperature difference of the two is calculated as the real-time temperature difference, room temperature PID operation is carried out according to the real-time temperature difference, obtains first frequency；The real-time range between indoor objects and air-conditioning is obtained, compared with set distance；If real-time range is not less than set distance, compressor of air conditioner operation is controlled according to first frequency；If real-time range is less than set distance, obtain the real-time coil temperature of A/C evaporator, determine coil pipe target temperature corresponding with real-time range as real-time coil pipe target temperature, it calculates the real-time coil pipe temperature difference between real-time coil temperature and real-time coil pipe target temperature and carries out disk temperature PID arithmetic, second frequency is obtained, the smaller value control compressor of air conditioner operation in first frequency and second frequency is selected.With the application of the invention, the comfort that preferably freezes may be implemented.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being to be related to a kind of air conditioner refrigerating control method and control
Device.
Background technique
Hot summer, many people be unable to do without air-conditioning the whole day and night.But it is set since the leaving air temp of air-conditioning will be far below
Determine temperature, air conditioning exhausting temperature is low, and the wind of blowout is cold wind.Cold wind is blown on human body, feels extremely uncomfortable, and be easy
Cool feeling emits, for a long time using being easy to appear the symptoms such as mouth and nose are dry, have sore throat, namely the air conditioner disease that is easy to get.
In order to solve the problems, such as to cause to suffer from air conditioner disease because air conditioning exhausting temperature is subcooled, the prior art is to air-conditioning system
When cold control, compressor of air conditioner running frequency is controlled according to the temperature difference between evaporator coil temperature and coil pipe target temperature,
So that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.
But in the prior art, coil pipe target temperature immobilizes, it is difficult to reach preferably refrigeration comfort and quickly system
Cold effect.
Summary of the invention
The object of the present invention is to provide a kind of air conditioner refrigerating control method and control devices, and to realize, preferably refrigeration is comfortable
Property.
For achieving the above object, air conditioner refrigerating control method provided by the invention, which adopts the following technical solutions, gives reality
It is existing:
A kind of air conditioner refrigerating control method, which comprises
Operation of air conditioner obtains real-time indoor environment temperature and setting indoor target temperature, calculates the real-time indoor environment
The temperature difference between temperature and the setting target temperature carries out room temperature PID fortune according to the real-time temperature difference as the real-time temperature difference
It calculates, obtains first frequency；Indoor target where obtaining air-conditioning using the infrared distance measurement unit with infrared distance sensor with
Real-time range between air-conditioning makes comparisons the real-time range with set distance；
If the real-time range is not less than the set distance, the first following control is executed:
Compressor of air conditioner operation is controlled according to the first frequency；
If the real-time range is less than the set distance, the second following control is executed:
The real-time coil temperature of A/C evaporator is obtained, it is true according to known distance and the corresponding relationship of coil pipe target temperature
Fixed coil pipe target temperature corresponding with the real-time range as real-time coil pipe target temperature, calculate the real-time coil temperature and
The temperature difference between the real-time coil pipe target temperature carries out disk temperature according to the real-time coil pipe temperature difference as the real-time coil pipe temperature difference
PID arithmetic obtains second frequency, and the smaller value in the first frequency and the second frequency is selected to control compressor of air conditioner fortune
Row.
To realize aforementioned invention purpose, air conditioner refrigerating control device provided by the invention, which adopts the following technical solutions, to be come in fact
It is existing:
A kind of air conditioner refrigerating control device, described device include:
Indoor environment temperature acquiring unit, for obtaining real-time indoor environment temperature；
Coil temperature acquiring unit, for obtaining the real-time coil temperature of A/C evaporator；
Room temperature PID arithmetic element, for calculating between the real-time indoor environment temperature and setting indoor target temperature
The temperature difference carries out PID arithmetic according to the real-time indoor temperature difference, obtains and export first frequency as the real-time indoor temperature difference；
Infrared distance measurement unit has infrared distance sensor, for obtaining between the indoor target in air-conditioning place and air-conditioning
Real-time range；
Real-time coil pipe target temperature acquiring unit, for being obtained according to known distance and the corresponding relationship of coil pipe target temperature
Coil pipe target temperature corresponding with the real-time range is taken, and as real-time coil pipe target temperature；
Disk temperature PID arithmetic unit, for calculating the temperature difference between the real-time coil temperature and real-time coil pipe target temperature,
As the real-time coil pipe temperature difference, PID arithmetic is carried out according to the real-time coil pipe temperature difference, obtains and exports second frequency；
Control model selecting unit for the size of the real-time range and set distance, and exports comparison result
As control model selection signal；
First control unit, comparison result for being exported in the control model selecting unit be the real-time range not
When less than the set distance, the compressor operation of the first frequency control air-conditioning is selected；
Second control unit, the comparison result for exporting in the control model selecting unit are that the real-time range is small
When the set distance, the smaller value in the first frequency and the second frequency is selected to control the compressor fortune of air-conditioning
Row.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention compares the real-time range of target range air-conditioning and the size of set distance by setting target range,
When real-time range is not less than set distance, disk temperature PID control is not considered and is run only with room temperature PID control compressor, thus
Rapidly cooled down to room, avoids the problem that poor refrigerating efficiency, and when real-time range is not more than set distance, consider disk
Warm PID control, so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.Moreover, in disk temperature PID
In control process, disk temperature target temperature is adaptively adjusted according to the real-time range of heat source and air conditioning room, further improves outlet air
The comfort of temperature, it helps reduce operation of air conditioner energy consumption.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart of air conditioner refrigerating control method one embodiment of the present invention；
Fig. 2 is the structural block diagram of air conditioner refrigerating control device one embodiment of the present invention.
Specific embodiment
The technical scheme of the present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
Referring to Figure 1, which show the flow chart of air conditioner refrigerating control method one embodiment of the present invention.
As shown in Figure 1, detailed process is as follows for the method for embodiment realization air conditioner refrigerating control:
Step 11: air conditioner refrigerating operation obtains real-time indoor environment temperature and setting indoor target temperature；Meanwhile it obtaining
The real-time range of indoor target and air conditioning room where air-conditioning.
Specifically, when air-conditioning is switched on and runs, the indoor environment temperature in room locating for real-time detection air-conditioning, real-time detection
Temperature as real-time indoor environment temperature.So-called real-time indoor environment temperature refers to after air-conditioning booting operation, according to setting
Determine the indoor environment temperature that temperature sampling frequency is constantly obtained and updated.The acquisition of real-time indoor environment temperature can use existing
Technology is realized.For example, by the way that air-conditioning air inlet is arranged in or close to the temperature sensor detection air inlet temperature of air-conditioning air inlet
Degree, the master control borad of air-conditioning passes through the output signal of temperature collection sensor and is handled, to get inlet air temperature, and will
The temperature is as real-time indoor environment temperature.
Setting indoor target temperature, which refers to, wishes the attainable target temperature of indoor environment institute, the setting indoor target temperature
It can be user and pass through the temperature value that remote controler or control terminal for air conditioner or air-conditioning panel are inputted, be also possible to air-conditioning master
The setting value that control plate calls automatically.Regardless of the temperature value is set using which kind of mode, can be got by air-conditioning master control borad.
After air-conditioning booting operation, in addition to the real-time indoor environment temperature in room locating for real-time detection air-conditioning, also to examine in real time
Indoor target where surveying air-conditioning, and determine the real-time range of target and air conditioning room.So-called real-time range is switched in air-conditioning
After operation, the distance between indoor airflow and air-conditioning for constantly obtaining and update according to setting sample frequency.The detection of target and
Target realizes that structure is simple at a distance from air conditioning room using the infrared distance measurement unit with infrared distance sensor, is easy real
Existing, cost is relatively low.Specifically, it is that infrared distance sensor and corresponding processing circuit are set on air-conditioning, utilizes infrared survey
The detection of target distance is carried out away from the reflected intensity that the infrared signal that sensor issues encounters obstacle target back reflection.
Step 12: calculating real-time indoor environment temperature and set the temperature difference between indoor target temperature, as real-time interior
The temperature difference carries out room temperature PID operation according to the real-time indoor temperature difference, obtains first frequency.
Master control borad calculates temperature between the two after getting real-time indoor environment temperature and setting indoor target temperature
Difference, as the real-time indoor temperature difference.Then, room temperature PID operation is carried out according to the real-time indoor temperature difference, acquisition controls compressor
A frequency, and the frequency is defined as first frequency.Wherein, room temperature PID operation carried out according to the temperature difference, obtained to compressor
The specific method of the target frequency controlled can be realized using the prior art, be not elaborated and limited herein.
Step 13: judging whether real-time range is less than set distance.If so, executing step 15；If it has not, executing step
14。
The step can carry out simultaneously with step 12, be divided into two steps herein merely to clearly stating the reality
Apply the control process of example.After step 11 gets real-time range, real-time range is made comparisons with set distance, and judge reality
When distance whether be less than set distance, to execute the control of step 14 or step 15 according to comparison result.Wherein, set distance
One default setting temperature of air-conditioning when can be factory, be also possible to voluntarily to be selected by user and be arranged one setting away from
From.If it is by user's sets itself, air-conditioning can provide a reference value, for reference.Such as, it is proposed that the distance is set
It is set to 3m.
Step 14: if step 13 determines that real-time range is not less than set distance, executing the first following control: selection
First frequency controls the compressor operation of air-conditioning.
If real-time range is not less than set distance, show that target range air-conditioning is farther out at this time, to guarantee the system at target
Cold effect needs air outlet temperature lower, to send out at enough cooling airs to heat source.In this case, selection is passed through room
The first frequency that warm PID is calculated controls the compressor operation of air-conditioning as target frequency.Also, in this case, due to mesh
Farther out, even if air outlet temperature is low, the wind of submitting is blown at target subject distance air-conditioning by a distance, will not be too cool and influence
User's comfort.
Step 15: if step 13 determines that real-time range is less than set distance, executing the second following control: obtaining empty
The real-time coil temperature for adjusting evaporator, according to the determination of the corresponding relationship of known distance and coil pipe target temperature and real-time range pair
The coil pipe target temperature answered calculates between real-time coil temperature and setting coil pipe target temperature as real-time coil pipe target temperature
The temperature difference carries out disk temperature PID arithmetic according to the real-time coil pipe temperature difference, obtains second frequency as the real-time coil pipe temperature difference, selects the first frequency
Smaller value in rate and second frequency is run as target frequency according to the compressor that target frequency controls air-conditioning.
If step 13 determines that real-time range is less than set distance, to avoid the too fast decline of temperature from causing body-sensing uncomfortable,
Further consider evaporator coil temperature, to adjust compressor operating frequency in time, enables evaporator coil temperature steady
Surely coil pipe target temperature is arrived, to adjust air conditioning exhausting temperature, reaches cool without cold comfortable air-out effect.
Specifically, firstly, obtaining the real-time coil temperature of A/C evaporator, and according to known distance and coil pipe target
The corresponding relationship of temperature determines coil pipe target temperature corresponding with real-time range as real-time coil pipe target temperature；Then, it calculates
The temperature difference between real-time coil temperature and real-time coil pipe target temperature, as the real-time coil pipe temperature difference, according to the real-time coil pipe temperature difference into
Row disk temperature PID arithmetic obtains second frequency；Finally, first frequency and the second frequency that selection is obtained according to room temperature PID operation
In smaller value as target frequency, compressor of air conditioner operation is controlled according to target frequency.
Wherein, the detection of evaporator coil temperature can be detected by the way that coil temperature sensor is arranged on an evaporator.
And the method that disk temperature PID arithmetic obtains the target frequency controlled compressor can refer to room temperature PID in the prior art
Operation and the method for obtaining compressor target frequency.Wherein, the original frequency of disk temperature PID arithmetic can be set initial for one
Frequency.Preferably, the original frequency of disk temperature PID arithmetic is to determine that real-time range is less than set distance, into the second control process
When compressor current operation frequency.Moreover, the current operation frequency at least runs a period of time (such as 3min) in compressor
A running frequency later.Coil pipe target temperature is not fixed and invariable temperature, but at a distance from target and air conditioning room
A corresponding variable temperature.Specifically, distance and coil pipe target are previously stored in the memory of air-conditioning master control borad
The corresponding relationship of temperature, wherein distance refers to that the distance between indoor objects and air-conditioning, coil pipe target temperature are expectation evaporators
Coil temperature temperature to be achieved.For different distances, it is corresponding with not exactly the same or complete different coil pipe target
Temperature, and apart from smaller, coil pipe target temperature is bigger, it is therefore an objective to it is provided for the heat source at different distance and more suitably goes out wind-warm syndrome
Degree, guarantees the comfort of outlet air.Moreover, passing through the variation of coil pipe target temperature, additionally aid by reducing compressor operation frequency
Rate reduces operation of air conditioner energy consumption.Preferably, the corresponding relationship of distance and coil pipe target temperature is to be referred to by research staff in theory
It leads down, is obtained by a large amount of operation of air conditioner simulated experiment, air-conditioning comfort can be taken into account as far as possible.Therefore, exist
After obtaining real-time range, from real-time range is first found in the corresponding relationship of distance and coil pipe target temperature, then obtaining should
Coil pipe target temperature corresponding to real-time range, and using the coil pipe target temperature as real-time coil pipe target temperature.
Air conditioner refrigerating control is realized using the above method, by comparing the real-time range and set distance of target range air-conditioning
Size do not consider disk temperature PID control when real-time range is not less than set distance and control compressor only with room temperature PID
Operation avoids the problem that poor refrigerating efficiency to rapidly be cooled down to room, and is not more than set distance in real-time range
When, disk temperature PID control is considered, so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.Moreover,
During disk temperature PID control, disk temperature target temperature is adaptively adjusted according to the real-time range of target and air conditioning room, further mentions
The high comfort of leaving air temp, it helps reduce operation of air conditioner energy consumption.
Moreover, during execution second controls, the still constantly real-time range of real-time detection heat source and air conditioning room,
And compare the size of real-time range and set distance.Once real-time range is not less than set distance, then the mistake of the second control is exited
Journey, and the process of the first control is executed, so that room temperature is stablized in setting indoor target temperature.
As preferred embodiment, during execution second controls, real-time range not less than set distance and
When the difference of real-time range and set distance is greater than setting difference, the second control is exited, executes the first control.
Fig. 2 is referred to, which show the structural block diagram of air conditioner refrigerating control device one embodiment of the present invention.
As shown in Fig. 2, the structural unit and its function that the refrigeration control device of the embodiment is included are as follows:
Indoor environment temperature acquiring unit 201, for obtaining real-time indoor environment temperature.
Room temperature PID arithmetic element 202, for calculating the real-time indoor environment of the acquisition of indoor environment temperature acquiring unit 201
The temperature difference between temperature and setting indoor target temperature carries out PID fortune according to the real-time indoor temperature difference as the real-time indoor temperature difference
It calculates, obtains and export first frequency.
Coil temperature acquiring unit 203, for obtaining the real-time coil temperature of A/C evaporator.
Infrared distance measurement unit 204 includes infrared distance sensor, for indoor target where obtaining air-conditioning in real time with
Real-time range between air-conditioning.
Real-time coil pipe target temperature acquiring unit 205, for being closed according to known distance is corresponding with coil pipe target temperature
System obtains coil pipe target temperature corresponding with real-time range, and as real-time coil pipe target temperature.
Disk temperature PID arithmetic unit 206, for calculating the real-time coil temperature and reality of the acquisition of coil temperature acquiring unit 203
When the real-time coil pipe target temperature that obtains of coil pipe target temperature acquiring unit 205 between the temperature difference, as the real-time coil pipe temperature difference, root
The coil pipe temperature difference carries out PID arithmetic when factually, obtains and exports second frequency.
Control model selecting unit 207, for comparing the real-time range and set distance of the acquisition of infrared distance measurement unit 204
Size, and comparison result is exported as control model selection signal.
First control unit 208, the comparison result for exporting in control model selecting unit 207 are that real-time range is not small
When set distance, the compressor operation for the first frequency control air-conditioning for selecting room temperature PID arithmetic element 202 to export.
Second control unit 209, the comparison result for exporting in control model selecting unit 207 are less than for real-time range
When set distance, the second of first frequency and disk temperature PID arithmetic unit 206 output for selecting room temperature PID arithmetic element 202 to export
The compressor operation of smaller value control air-conditioning in frequency.
Each structural unit in above-mentioned apparatus runs corresponding software program, and executes air conditioner refrigerating according to the process of Fig. 1
Control, realizes that the refrigeration of air-conditioning comfortably controls.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of air conditioner refrigerating control method, which is characterized in that the described method includes:
Operation of air conditioner obtains real-time indoor environment temperature and setting indoor target temperature, calculates the real-time indoor environment temperature
Room temperature PID fortune is carried out according to the real-time temperature difference as the real-time temperature difference with the temperature difference between the setting indoor target temperature
It calculates, obtains first frequency；Indoor target where obtaining air-conditioning using the infrared distance measurement unit with infrared distance sensor with
Real-time range between air-conditioning makes comparisons the real-time range with set distance；
If the real-time range is not less than the set distance, the first following control is executed:
Compressor of air conditioner operation is controlled according to the first frequency；
If the real-time range is less than the set distance, the second following control is executed:
The real-time coil temperature for obtaining A/C evaporator, according to the corresponding relationship of known distance and coil pipe target temperature determine with
The corresponding coil pipe target temperature of the real-time range as real-time coil pipe target temperature, calculate the real-time coil temperature with it is described
The temperature difference between real-time coil pipe target temperature carries out disk temperature PID fortune according to the real-time coil pipe temperature difference as the real-time coil pipe temperature difference
It calculates, obtains second frequency, the smaller value in the first frequency and the second frequency is selected to control compressor of air conditioner operation.
2. the method according to claim 1, wherein continuing to obtain during executing the described second control
The real-time range is simultaneously made comparisons with the set distance, when the real-time range is not less than the set distance, exits institute
The second control is stated, first control is executed.
3. refrigeration control method according to claim 2, which is characterized in that during executing the described second control,
Continue to obtain the real-time range and make comparisons with the set distance, the real-time range not less than the set distance,
And the difference of the real-time range and the set distance be greater than setting difference when, exit it is described second control, execute described first
Control.
4. according to the method in any one of claims 1 to 3, which is characterized in that when executing the described second control, obtain
The current operation frequency of the compressor, using the current operation frequency as the original frequency of the disk temperature PID arithmetic, and root
The disk temperature PID arithmetic is carried out according to the real-time coil pipe temperature difference.
5. a kind of air conditioner refrigerating control device, which is characterized in that described device includes:
Indoor environment temperature acquiring unit, for obtaining real-time indoor environment temperature；
Coil temperature acquiring unit, for obtaining the real-time coil temperature of A/C evaporator；
Room temperature PID arithmetic element, for calculating the real-time indoor environment temperature and setting the temperature difference between indoor target temperature,
As the real-time indoor temperature difference, PID arithmetic is carried out according to the real-time indoor temperature difference, obtains and exports first frequency；
Infrared distance measurement unit has infrared distance sensor, for obtaining the reality between the indoor target in air-conditioning place and air-conditioning
When distance；
Real-time coil pipe target temperature acquiring unit, for the corresponding relationship according to known distance and coil pipe target temperature obtain with
The corresponding coil pipe target temperature of the real-time range, and as real-time coil pipe target temperature；
Disk temperature PID arithmetic unit, for calculating the temperature difference between the real-time coil temperature and real-time coil pipe target temperature, as
The real-time coil pipe temperature difference carries out PID arithmetic according to the real-time coil pipe temperature difference, obtains and export second frequency；
Control model selecting unit for the size of the real-time range and set distance, and exports comparison result conduct
Control model selection signal；
First control unit, the comparison result for exporting in the control model selecting unit are that the real-time range is not less than
When the set distance, the compressor operation of the first frequency control air-conditioning is selected；
Second control unit, the comparison result for exporting in the control model selecting unit are less than institute for the real-time range
When stating set distance, the smaller value in the first frequency and the second frequency is selected to control the compressor operation of air-conditioning.
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| CN106352505B (en) * | 2016-10-31 | 2019-09-17 | 广东美的制冷设备有限公司 | A kind of control method of air conditioner, control device and air conditioner |
| CN107062549B (en) * | 2017-04-25 | 2020-04-24 | 青岛海尔空调器有限总公司 | Heating operation control method for air conditioner |
| CN109654684A (en) * | 2018-12-06 | 2019-04-19 | 珠海格力电器股份有限公司 | Air conditioning control method, air conditioner and computer readable storage medium |
| CN109654685A (en) * | 2018-12-06 | 2019-04-19 | 珠海格力电器股份有限公司 | Air conditioning control method, air conditioner and computer readable storage medium |
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