CN106052010B - Refrigerating of convertible frequency air conditioner control method and control device - Google Patents
Refrigerating of convertible frequency air conditioner control method and control device Download PDFInfo
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- CN106052010B CN106052010B CN201610354088.6A CN201610354088A CN106052010B CN 106052010 B CN106052010 B CN 106052010B CN 201610354088 A CN201610354088 A CN 201610354088A CN 106052010 B CN106052010 B CN 106052010B
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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
-
- 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
-
- 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
- F24F11/77—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 by controlling the speed of ventilators
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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
-
- 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
-
- 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
- F24F2110/30—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
Abstract
The invention discloses a kind of refrigerating of convertible frequency air conditioner 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 airflow and air-conditioning is determined, 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, coil pipe target temperature corresponding with real-time range is determined as real-time coil pipe target temperature, target frequency is determined according to the size of real-time coil temperature and real-time coil pipe target temperature to control compressor of air conditioner operation.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, be related to a kind of refrigerating of convertible frequency air conditioner 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 refrigerating of convertible frequency air conditioner control method and control devices, to realize preferably refrigeration
Comfort.
For achieving the above object, refrigerating of convertible frequency air conditioner control method provided by the invention, which adopts the following technical solutions, gives
To realize:
A kind of refrigerating of convertible frequency air conditioner 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 heat source where real-time detection air-conditioning simultaneously determines the real-time range between the heat source and air-conditioning,
The real-time range is made comparisons 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 is as real-time coil pipe target temperature, by the real-time coil temperature and institute
Real-time coil pipe target temperature is stated to make comparisons；If the real-time coil temperature is greater than the real-time coil pipe target temperature, according to described
First frequency controls the compressor operation of air-conditioning；It, will if the real-time coil temperature is not more than the real-time coil pipe target temperature
The current operation frequency of compressor, which reduces, obtains second frequency, selects the smaller value in the first frequency and the second frequency
Control the compressor operation of air-conditioning.
To realize aforementioned invention purpose, refrigerating of convertible frequency air conditioner control device provided by the invention, which adopts the following technical solutions, to be come
It realizes:
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；
Heat source is determining and distance acquiring unit, for heat source indoor where real-time detection air-conditioning and determine the heat source with
Real-time range between air-conditioning；
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；
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 real-time coil temperature is made comparisons with the real-time coil pipe target temperature；If the real-time disk
Tube temperature degree is greater than the real-time coil pipe target temperature, is run according to the compressor that the first frequency controls air-conditioning；If the reality
When coil temperature be not more than the real-time coil pipe target temperature, the current operation frequency of compressor is reduced and obtains second frequency,
The smaller value in the first frequency and the second frequency is selected to control the compressor operation of air-conditioning.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention compares the size of real-time range and set distance of the heat source apart from air-conditioning by setting heat source distance,
When real-time range is not less than set distance, disk temperature control is not considered and is run only with room temperature PID control compressor, thus to room
Between rapidly cooled down, avoid the problem that poor refrigerating efficiency, and when real-time range is not more than set distance, consider disk temperature control
System, so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.Moreover, during disk temperature control,
Disk temperature target temperature is adaptively adjusted according to the real-time range of heat source and air conditioning room, further improves the comfortable of leaving air temp
Property, 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 refrigerating of convertible frequency air conditioner control method one embodiment of the present invention；
Fig. 2 is the structural block diagram of refrigerating of convertible frequency air conditioner 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 refrigerating of convertible frequency air conditioner control method one embodiment of the present invention.
As shown in Figure 1, detailed process is as follows for the method for embodiment realization refrigerating of convertible frequency air conditioner control:
Step 11: air conditioner refrigerating operation obtains real-time indoor environment temperature and setting indoor target temperature；Meanwhile in real time
Indoor heat source where detecting air-conditioning, and determine the real-time range of heat source and air conditioning room.
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 heat source where surveying air-conditioning, and determine the real-time range of heat source 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 heat source and
The determination of distance of heat source and air conditioning room can be realized using the prior art.For example, by the way that infrared array is arranged on air-conditioning
Sensor or common infrared sensor, calculate in conjunction with certain algorithm.
As preferred embodiment, indoor heat source where detecting air-conditioning and determine between heat source and air-conditioning it is real-time away from
From being obtained, specifically included using following technological means:
The infrared sensor controlled in air-conditioning carries out rotary scanning, the temperature information in scanning range is obtained, according to temperature
Information acquisition heat source temperature curve.
Specifically, infrared sensor and rotating mechanism can be arranged on air-conditioning, the controller of air-conditioning controls rotating machine
Structure driving infrared sensor rotates in biggish angular range.The infrared sensor of rotation is to the region within the scope of scanning angle
It is scanned, the temperature information in real-time acquisition scans region.Temperature information reflection is sweeping of currently acquiring of infrared sensor
The radiation intensity of object in range is retouched, radiation intensity is stronger, then it represents that the temperature value of infrared sensor acquisition is higher.Therefore, exist
In the scanning process of infrared sensor, scanning is arrived again to the process after heat source, infrared sensing to source center before scanning to heat source
The temperature value of device sampling is to arrive a low process again from low to high, this is process of the scanning to a heat source.Air-conditioning receives red
The temperature information of outer sensor sampling is generated indoor by the analysis of the i.e. radiation intensity of temperature information acquired to infrared sensor
The temperature curve of heat source.
Infrared sensor rotation is driven by rotational structure, so only needing single-point infrared sensor that entire sky can be realized
Between range temperature scanning, do not need array infrared sensor, data processing is relatively simple, expend the time it is short.
Then, according to heat source temperature curve determine where air-conditioning between indoor heat source and heat source and air-conditioning it is real-time away from
From.
Specifically, air conditioner corresponds to the radiation intensity of heat source by the crest value in analysis temperature curve, crest value, according to
Crest value may determine that the number of heat source in current environment, wherein the coordinate value of crest value is the coordinate value i.e. position of heat source.
Moreover, the temperature value of infrared sensor sampling and the distance of object have relationship, and when object distance air-conditioning is remoter, infrared sensing
The temperature value of device acquisition is lower, conversely, closer to object true temperature value.It specifically, can be according to temperature in temperature curve most
Difference between high level and minimum determines the distance between heat source and air conditioner, is acquired according to infrared sensor in the scan period
The maximum value of temperature value and the difference of minimum value can judge the heat source of Current Scan and the relative distance of background, difference is got over
It is small, illustrate that heat source and background are close, i.e., heat source and air-conditioning be farther out.
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 distance 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 be not less than set distance, show at this time heat source apart from air-conditioning farther out, for guarantee heat source at system
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 heat
Farther out apart from air-conditioning, even if air outlet temperature is low, the wind of submitting is blown at heat source by a distance in source, 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 is made comparisons as real-time coil pipe target temperature, by real-time coil temperature with real-time coil pipe target temperature；
If real-time coil temperature is greater than real-time coil pipe target temperature, run according to the compressor that first frequency controls air-conditioning；If real-time disk
Tube temperature degree is not more than real-time coil pipe target temperature, and the current operation frequency of compressor is reduced and obtains second frequency, selects first
The compressor operation of smaller value control air-conditioning in frequency and second frequency.
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；It then, will be real
When coil temperature make comparisons with real-time coil pipe target temperature, to judge whether real-time coil temperature is greater than real-time coil pipe target temperature
Degree.If real-time coil temperature is greater than real-time coil pipe target temperature, show that air conditioning exhausting temperature will not be relatively low, thus, by room temperature
Adjustment adjust main target as temperature, select first frequency as target frequency, according to the pressure of target frequency control air-conditioning
The operation of contracting machine.And if coil temperature is not more than real-time coil pipe target temperature in real time, shows that coil temperature is relatively low at this time, is easy to cause
Air conditioning exhausting temperature is relatively low and sends out cold wind.To solve this problem, the current operation frequency of compressor is reduced and obtains second
Frequency.Then, it selects the smaller value in first frequency and second frequency as target frequency, air-conditioning is controlled according to target frequency
Compressor operation.
Wherein, the detection of evaporator coil temperature can be detected by the way that coil temperature sensor is arranged on an evaporator.
Coil pipe target temperature is not fixed and invariable temperature, but a corresponding temperature-changeable at a distance from heat source and air conditioning room
Degree.Specifically, the corresponding relationship of distance with coil pipe target temperature is previously stored in the memory of air-conditioning master control borad,
In, distance refers to that the distance between indoor airflow and air-conditioning, coil pipe target temperature are that expectation evaporator coil temperature to be reached
Temperature.For different distances, be corresponding with not exactly the same or complete different coil pipe target temperature, and apart from it is smaller,
Coil pipe target temperature is bigger, it is therefore an objective to provide more suitable leaving air temp for the heat source at different distance, guarantee the comfortable of outlet air
Property.Moreover, passing through the variation of coil pipe target temperature, additionally aiding by reducing compressor operating frequency reduces operation of air conditioner energy
Consumption.Preferably, the corresponding relationship of distance and coil pipe target temperature be by research staff under theoretical direction, by a large amount of air-conditioning
It is obtained to operate simulated experiment, air-conditioning comfort can be taken into account as far as possible.Therefore, after obtaining real-time range, from
Real-time range is first found in distance and the corresponding relationship of coil pipe target temperature, then obtains coil pipe corresponding to the real-time range
Target temperature, and using the coil pipe target temperature as real-time coil pipe target temperature.
Air conditioner refrigerating control, real-time range and set distance by comparing heat source apart from air-conditioning are realized using the above method
Size, when real-time range is not less than set distance, do not consider disk temperature control and only with room temperature PID control compressor fortune
Row 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 control is considered, so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.Moreover, in disk
During temperature control system, disk temperature target temperature is adaptively adjusted according to the real-time range of heat source and air conditioning room, further improves out
The comfort of air temperature, 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, a setting highest frequency is previously stored in the memory of air-conditioning master control borad, such as
It is smaller in first frequency and second frequency that fruit step 14 determines that first frequency determines greater than setting highest frequency or step 15
Value is greater than setting highest frequency, then will set highest frequency as target frequency.That is, either according to which frequency control
Compressor processed, the running frequency of guarantee compressor are no more than setting highest frequency.
Can also include following control processes for the second control as preferred embodiment:
If it is determined that real-time coil temperature is not more than real-time coil pipe target temperature, then judges whether it is after booting for the first time less
In, and different processing is executed according to judging result.
Specifically, if coil temperature is not more than real-time coil pipe target temperature, the second frequency for the first time after air-conditioning booting in real time
Rate is setting refrigeration minimum frequency；If real-time coil temperature is non-after air-conditioning booting to be not more than real-time coil pipe target temperature for the first time,
Second frequency is between current operation frequency and refrigeration minimum frequency.Wherein, refrigeration minimum frequency is that air conditioner refrigerating was run
The minimum frequency of setting in journey.Generally, which is the preceding parameter set of air-conditioning factory.
That is, reading compressor if non-after coil temperature booting in real time be not more than real-time coil pipe target temperature for the first time
Current operation frequency, then by second frequency be chosen to be between current operation frequency and refrigeration minimum frequency between a frequency
Rate value.
The purpose handled in this way is, if coil temperature is not more than real-time coil pipe target temperature for the first time in real time, to avoid
The reduction of air conditioning exhausting temperature and cause outlet air be cold wind, first the frequency of compressor is limited so that coil temperature as early as possible on
Rise to real-time coil pipe target temperature.And if coil temperature is non-in real time is not more than real-time coil pipe target temperature for the first time, show
The fuzzy control of the second control process was executed, then coil temperature will not be lower than very much real-time coil pipe target temperature, at this point, the second frequency
Rate is unnecessary to be minimized, but between current operation frequency and refrigeration minimum frequency, to take into account the speed of room temperature adjusting.
For real-time coil temperature booting after it is non-for the first time be not more than real-time coil pipe target temperature when second frequency determination, can
With a variety of methods, it is preferred to use following methods:
Current operation frequency is reduced setting adjustment frequency every setting adjustment time by the current operation frequency for obtaining compressor
Rate, the frequency after reduction are second frequency.
Wherein, a pre-set frequency values before setting adjustment frequency as air-conditioning factory, or voluntarily set for user
A fixed frequency values, for example, being set as 5Hz.The frequency values indicate every time as a frequency adjusting step to current operation
The reduction amplitude of frequency.Moreover, to frequency reduction using every setting adjustment time reduce it is primary by the way of, realize gradually adjust
Section.
Current operation frequency is reduced setting adjustment frequency as second frequency every time by embodiment more preferably
Afterwards, first judge whether the difference of real-time coil pipe target temperature and real-time coil temperature is not less than setting overshoot temperature value.If so,
Setting adjustment time continues to execute after reaching reduces setting adjustment frequency as the process of the second mark frequency for current operation frequency；
Otherwise, keep second frequency constant.Wherein, overshoot temperature value is also the temperature value of a setting, for example, being set as 1 DEG C.
It is using the advantages of above-mentioned processing: if it is determined that the difference of coil pipe target temperature and real-time coil temperature is greater than in real time
Overshoot temperature value shows coil temperature far below setting coil pipe target temperature, it is still necessary to further frequency reducing.Moreover, as previously mentioned,
Down conversion process process is that interval setting adjustment time reduces once.Adjustment time is also a pre-set value, indicates frequency
The interval time of rate adjustment.For example, can be set as 2min.That is, after adjustment is primary, first using frequency adjusted as
Second frequency keeps second frequency constant when adjustment time is not up to.After adjustment time arrival, then reads compressor and work as
Preceding running frequency continues to carry out frequency reducing according to setting adjustment frequency based on current operation frequency.
And if step determines the difference of real-time coil pipe target temperature and real-time coil temperature and is not more than overshoot temperature value, show
Though coil temperature does not reach real-time coil pipe target temperature also, and the difference of real-time coil pipe target temperature is smaller, is not more than overshoot temperature
Angle value to avoid there is the overshoot of coil temperature, and influences room temperature adjustment speed at this point, then no longer reducing frequency.Thus, it protects
It is constant to hold second frequency.
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.
Heat source is determining and distance acquiring unit 204, for heat source indoor where real-time detection air-conditioning and determine heat source 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.
Control model selecting unit 206, for compare heat source is determining and distance acquiring unit 204 obtains real-time range with
The size of set distance, and comparison result is exported as control model selection signal.
First control unit 207, the comparison result for exporting in control model selecting unit 206 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 208, the comparison result for exporting in control model selecting unit 206 are less than for real-time range
When set distance, real-time coil temperature is made comparisons with real-time coil pipe target temperature；If real-time coil temperature is greater than real-time coil pipe
Target temperature is run according to the compressor that first frequency controls air-conditioning；If real-time coil temperature is not more than real-time coil pipe target temperature
The current operation frequency of compressor is reduced and obtains second frequency by degree, selects the smaller value control in first frequency and second frequency
The compressor of air-conditioning processed is run.
Heat source is determining and distance acquiring unit 204 can be using the knot for being able to detect heat source and determining distance in the prior art
Structure is realized.As preferred embodiment, heat source is determining and distance acquiring unit 204 is realized using following structures:
Include:
Infrared sensor is arranged in air-conditioning；
Rotating mechanism, for driving infrared sensor to rotate；
Heat source is determining and apart from subelement is obtained, for obtaining the temperature information in infrared sensor scanning range, according to
Temperature information obtains heat source temperature curve, according to heat source temperature curve determine indoor heat source where air-conditioning and heat source and air-conditioning it
Between real-time range.
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 (8)
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 heat source where real-time detection air-conditioning simultaneously determines the real-time range between the heat source and air-conditioning,
The real-time range is made comparisons 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 is as real-time coil pipe target temperature, by the real-time coil temperature and the reality
When coil pipe target temperature make comparisons；If the real-time coil temperature is greater than the real-time coil pipe target temperature, according to described first
Frequency controls the compressor operation of air-conditioning；If the real-time coil temperature is not more than the real-time coil pipe target temperature, will compress
The current operation frequency of machine, which reduces, obtains second frequency, and the smaller value in the first frequency and the second frequency is selected to control
The compressor of air-conditioning is run.
2. the method according to claim 1, wherein described in indoor heat source where the detection air-conditioning and determination
Real-time range between heat source and air-conditioning, specifically includes:
The infrared sensor controlled in air-conditioning carries out rotary scanning, the temperature information in scanning range is obtained, according to the temperature
Information acquisition heat source temperature curve；
The real-time range between the indoor heat source in air-conditioning place and the heat source and air-conditioning is determined according to the heat source temperature curve.
3. the method according to claim 1, wherein if the first frequency or the first frequency with it is described
Smaller value in second frequency is greater than setting highest frequency, then is transported according to the compressor of the setting highest frequency control air-conditioning
Row.
4. according to the method in any one of claims 1 to 3, which is characterized in that if the real-time coil temperature is in air-conditioning
It is not more than the real-time coil pipe target temperature after booting for the first time, the second frequency is setting refrigeration minimum frequency；If the reality
When coil temperature the air-conditioning booting after it is non-for the first time be not more than the real-time coil pipe target temperature, the second frequency is between institute
It states between current operation frequency and the refrigeration minimum frequency.
5. according to the method described in claim 4, it is characterized in that, if the real-time coil temperature is non-after air-conditioning booting
It is not more than the real-time coil pipe target temperature for the first time, the second frequency is determined using following methods:
The current operation frequency is reduced setting every setting adjustment time and adjusted by the current operation frequency for obtaining compressor
Whole frequency, the frequency after reduction are the second frequency.
6. according to the method described in claim 5, being adjusted it is characterized in that, the current operation frequency is reduced the setting every time
After whole frequency is as the second frequency, first judge that the difference of the real-time coil pipe target temperature and the real-time coil temperature is
It is no to be not less than setting overshoot temperature value；If so, being continued to execute after setting adjustment time arrival by the current operation frequency
Rate reduces process of the setting adjustment frequency as the second frequency and otherwise keeps the second frequency constant.
7. 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；
Heat source is determining and distance acquiring unit, indoor heat source where being used for real-time detection air-conditioning simultaneously determine the heat source and air-conditioning
Between real-time range；
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；
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 real-time coil temperature is made comparisons with the real-time coil pipe target temperature；If the real-time coil pipe temperature
Degree is greater than the real-time coil pipe target temperature, is run according to the compressor that the first frequency controls air-conditioning；If the real-time disk
Tube temperature degree is not more than the real-time coil pipe target temperature, and the current operation frequency of compressor is reduced and obtains second frequency, selection
The compressor operation of smaller value control air-conditioning in the first frequency and the second frequency.
8. device according to claim 7, which is characterized in that the heat source is determining and distance acquiring unit includes:
Infrared sensor is arranged in air-conditioning；
Rotating mechanism, for driving the infrared sensor to rotate；
Heat source is determining and apart from subelement is obtained, for obtaining the temperature information in the infrared sensor scanning range, according to
The temperature information obtains heat source temperature curve, indoor heat source where determining air-conditioning according to the heat source temperature curve and described
Real-time range between heat source and air-conditioning.
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