CN106196441B - Realize the method and device of air conditioner refrigerating control - Google Patents
Realize the method and device of air conditioner refrigerating control Download PDFInfo
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- CN106196441B CN106196441B CN201610547592.8A CN201610547592A CN106196441B CN 106196441 B CN106196441 B CN 106196441B CN 201610547592 A CN201610547592 A CN 201610547592A CN 106196441 B CN106196441 B CN 106196441B
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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
- F24F11/30—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
- F24F11/70—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
- 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
- F24F11/62—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/30—Velocity
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Abstract
The invention discloses a kind of method and devices for realizing air conditioner refrigerating control, which comprises air conditioner refrigerating operation carries out room temperature PID operation according to the temperature difference of real-time indoor environment temperature and setting indoor target temperature, obtains first frequency；The real-time range between the indoor target in air-conditioning place and air-conditioning is obtained, real-time wind speed corresponding with real-time range and the corresponding frequency of real-time wind speed are determined, as second frequency；Disk temperature PID arithmetic is carried out according to the temperature difference of real-time coil temperature and setting coil pipe target temperature, obtains third frequency；If real-time indoor environment temperature selects the smaller value in first frequency and second frequency as target frequency not less than setting comfort temperature；If real-time indoor environment temperature is less than setting comfort temperature, select the smaller value in first frequency, second frequency and third frequency as target frequency；The compressor operation of air-conditioning is controlled according to target frequency.With the application of the invention, energy saving, the comfortable control of air-conditioning may be implemented.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being the air-conditioning equipment for being related to adjusting room air, more
It says to body, is the method and device for being related to realizing air conditioner refrigerating control.
Background technique
Air-conditioning summer can freeze, winter can heat, and can adjust room temperature and reach cool in summer and warm in winter, provide for user
Comfortable environment.While air-conditioning provides comfort for user, incident is the contradiction with high energy consumption.Energy consumption is not
User's financial burden is increased only, it is also opposite with energy-saving and environment-friendly trend.Therefore, how to be provided comfortably using air-conditioning for user
The energy consumption that air-conditioning is reduced while environment is that current air conditioner producer has been working hard and solves the problems, such as.
Existing convertible frequency air-conditioner can control compressor operating frequency according to indoor environment temperature and setting target temperature, reach
To energy-saving purpose.But it can not achieve according to the control mode that temperature controls compressor operating frequency merely more excellent
Energy Saving Control, especially in the case where mutually synthermal, different wind speed operation, it is difficult to reach ideal energy conservation, comfortable control.
Summary of the invention
The object of the present invention is to provide a kind of method and devices for realizing air conditioner refrigerating control, realize the energy saving, easypro of air-conditioning
Suitable control.
For achieving the above object, the method provided by the invention for realizing air conditioner refrigerating control adopts the following technical solutions
It is achieved:
A method of realizing air conditioner refrigerating control, which comprises
Air conditioner refrigerating operation obtains real-time indoor environment temperature and setting indoor target temperature, calculates the real-time interior
The temperature difference between environment temperature and the setting indoor target temperature, as the real-time indoor temperature difference, according to the real-time Indoor Temperature
Difference carries out room temperature PID operation, obtains first frequency；Air-conditioning institute is obtained using the infrared distance measurement unit with infrared distance sensor
Real-time range between indoor target and air-conditioning, it is determining and described real-time according to the corresponding relationship of known distance and wind speed
Apart from corresponding wind speed and as real-time wind speed, obtained and the real-time wind speed according to known wind speed and the corresponding relationship of frequency
Corresponding frequency, as second frequency；
The real-time indoor environment temperature is made comparisons with setting comfort temperature；
If the real-time indoor environment temperature is not less than the setting comfort temperature, the first following control: selection is executed
The compressor of smaller value control air-conditioning in the first frequency and the second frequency is run；
If the real-time indoor environment temperature is less than the setting comfort temperature, executes the second following control: obtaining empty
The real-time coil temperature and setting coil pipe target temperature for adjusting evaporator, calculate the real-time coil temperature and the setting coil pipe mesh
The temperature difference between temperature is marked, as the real-time coil pipe temperature difference, disk temperature PID arithmetic is carried out according to the real-time coil pipe temperature difference, obtains the
Three frequencies select the smaller value in the first frequency, the second frequency and the third frequency to control the compressor of air-conditioning
Operation.
To realize aforementioned invention purpose, the device provided by the invention for realizing air conditioner refrigerating control is adopted the following technical solutions
It is achieved:
A kind of device for realizing air conditioner refrigerating control based on distance, 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；
Disk temperature PID arithmetic unit, for calculating the real-time coil temperature and setting the temperature difference between 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 third frequency；
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 wind speed acquiring unit, for according to the corresponding relationship of known distance and wind speed obtain with it is described in real time
Apart from corresponding wind speed, and as real-time wind speed；
Second frequency acquiring unit, for being obtained and the real-time wind speed according to the corresponding relationship of known wind speed and frequency
Corresponding frequency, as second frequency；
Control model selecting unit for the real-time indoor environment temperature and setting comfort temperature, and exports ratio
Relatively result is as control model selection signal；
First control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor ring
When border temperature is not less than the setting comfort temperature, select the smaller value control in the first frequency and the second frequency empty
The compressor of tune is run；
Second control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor ring
When border temperature is less than the setting comfort temperature, select in the first frequency, the second frequency and the third frequency
Smaller value controls the compressor operation of air-conditioning.
Compared with prior art, the advantages and positive effects of the present invention are:
In the present invention, when carrying out frequency control to compressor, matching between temperature factor and wind speed factor has been comprehensively considered
It closes, so that the air-flow of blower operating driving is formed by during driving heat exchange amount caused by refrigerant when compressor is run and being somebody's turn to do
Heat exchange amount matches, avoid that press frequency is excessively high or rotation speed of fan it is excessively high caused by meaningless energy consumption, realize the section of air-conditioning
It can operation.Moreover, wind speed controls at a distance from air conditioning room according to target, the comfort level of user is improved, and can be in low wind
Noise is reduced when fast.In addition, according to indoor environment temperature and being set comfortable for temperature factor in the control of compressor frequency
The size of temperature, selection are controlled or are used the disk temperature PID control based on evaporator coil temperature using room temperature PID, can be in room
Cool down in time, quickly to room when temperature is high, reaches refrigeration purpose, and coil temperature can be stablized in coil pipe target temperature
Degree, so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.
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 method one embodiment that the present invention realizes air conditioner refrigerating control；
Fig. 2 is the structural block diagram of device one embodiment that the present invention realizes air conditioner refrigerating control.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples,
Invention is further described in detail.
Referring to Figure 1, which show the flow chart that the present invention realizes method one embodiment of air conditioner refrigerating control.
As shown in Figure 1, the method that the embodiment realizes air conditioner refrigerating control is realized using the process with following step:
Step 11: air conditioner refrigerating operation obtains real-time indoor environment temperature, setting indoor target temperature, meanwhile, it obtains empty
The real-time range of indoor target and air conditioning room where adjusting.
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 opened in air-conditioning
After machine operation, the distance between indoor objects 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
It realizes, cost is relatively low.It specifically, is that setting infrared distance sensor and corresponding processing circuit, utilization are infrared on air-conditioning
The reflected intensity that the infrared signal that distance measuring sensor issues encounters obstacle target back reflection carries out the detection of target distance.
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；It is corresponding with wind speed according to known distance
Relationship determines wind speed corresponding with real-time range and as real-time wind speed, is obtained according to known wind speed and the corresponding relationship of frequency
Frequency corresponding with real-time wind speed, as second 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.
Meanwhile wind speed corresponding with real-time range is obtained also according to the corresponding relationship of known distance and wind speed, as reality
When wind speed.Specifically, corresponding relationship of the distance with wind speed is previously stored in the memory of air-conditioning master control borad, wherein away from
From the distance between indoor objects and air-conditioning are referred to, wind speed refers to the speed of indoor unit fan of air conditioner operating.For it is different away from
From being corresponding with not exactly the same or complete different wind speed, and distance is bigger, wind speed is lower.Also, it is preferred that, distance with
The corresponding relationship of wind speed be by research staff under theoretical direction, energy obtained by a large amount of operation of air conditioner simulated experiment
It is enough to take into account air-conditioning comfort and energy saving as far as possible.Therefore, corresponding with wind speed from distance after obtaining real-time range
Real-time range is first found in relationship, then obtains wind speed corresponding to the real-time range, and using the wind speed as real-time wind speed.
Then, frequency corresponding with real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, as second frequency.
Specifically, being also previously stored with the corresponding relationship of wind speed and frequency in the memory of air-conditioning master control borad, wherein
Wind speed refers to that the speed of indoor unit fan of air conditioner operating, frequency refer to the running frequency of compressor.It is corresponding for different wind speed
There is different frequencies.Also, it is preferred that, the corresponding relationship of wind speed and frequency be by research staff under theoretical direction, through excessive
The operation of air conditioner simulated experiment of amount is obtained, can take into account air-conditioning comfort and energy saving as far as possible.Establish wind speed with
The starting point of the corresponding relationship of frequency are as follows: for air-conditioning system, if indoor machine fan revolving speed is certain, blower operating is driven
Dynamic air-flow is certain, that is, air quantity is certain；Air quantity is certain, the heat exchange formed when passing through indoor set heat exchanger with heat exchanger
Ability is certain.If compressor operating frequency is too small, refrigerant circulation is very few, can reduce the exchange capability of heat of indoor heat exchanger, make
Indoor supply air temperature is obtained to be not suitable for.And if compressor operating frequency is excessive, refrigerant circulation is big, indoor heat exchanger exchange capability of heat
Greatly, but since the air quantity generated under certain interior machine revolving speed is too small, heat exchanger heat exchange efficiency decline, and the big function of compressor be will lead to
Rate operation waste energy consumption.Therefore, it is necessary to and restriction corresponding with frequency work to wind speed.
Therefore, after obtaining real-time wind speed, real-time wind speed is first found from wind speed and the corresponding relationship of frequency, then
Frequency corresponding to the real-time wind speed is obtained, and using the frequency as second frequency.
Moreover, a wind speed may correspond to a frequency, it is also possible to corresponding multiple frequencies.If a wind speed corresponds to more
A frequency namely a real-time wind speed are corresponding with multiple frequencies, in this case, selecting the maximum frequency in multiple frequencies as
Two frequencies.
Step 13: judging whether real-time indoor environment temperature is less than setting comfort temperature.If so, executing step 15；If
It is no, execute 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 indoor environment temperature, real-time indoor environment temperature and setting are relaxed
Thermophilic degree is made comparisons, and judges whether real-time indoor environment temperature is less than setting comfort temperature, to be executed according to comparison result
The control of step 14 or step 15.Wherein, one default setting temperature of air-conditioning when setting comfort temperature can be factory, can also
To be the set temperature voluntarily selected by user and be arranged.If it is by user's sets itself, air-conditioning can provide one
Reference temperature value, it is for reference.Such as, it is proposed that the comfort temperature is set as 27 DEG C.
Step 14: if step 13 determines that real-time indoor environment temperature not less than setting comfort temperature, executes as follows
First control: it selects the smaller value in first frequency and second frequency as target frequency, air-conditioning is controlled according to target frequency
Compressor operation.
If real-time indoor environment temperature shows that room temperature is higher at this time not less than setting comfort temperature, need quickly
Cooling.In this case, first frequency and second frequency that comparison step 12 obtains, select the smaller value in the two, as target
Frequency is run according to the compressor that target frequency controls air-conditioning.
Step 15: if step 13 determines that real-time indoor environment temperature is less than setting comfort temperature, executing following the
Two controls: the real-time coil temperature and setting coil pipe target temperature of A/C evaporator are obtained, real-time coil temperature and setting are calculated
The temperature difference between coil pipe target temperature carries out disk temperature PID arithmetic according to the real-time coil pipe temperature difference as the real-time coil pipe temperature difference, obtains
Third frequency selects the smaller value in first frequency, second frequency and third frequency as target frequency, according to target frequency control
The compressor of air-conditioning processed is run.
If step 12 determines that room temperature is less than comfort temperature, 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, it firstly, obtaining the real-time coil temperature and setting coil pipe target temperature of A/C evaporator, calculates real-time
The temperature difference between coil temperature and setting coil pipe target temperature carries out disk according to the real-time coil pipe temperature difference as the real-time coil pipe temperature difference
Warm PID arithmetic obtains third frequency.
Wherein, the detection of evaporator coil temperature can be detected by the way that coil temperature sensor is arranged on an evaporator.
Real-time detection goes out after coil temperature, calculates real-time coil temperature and sets the temperature difference between coil pipe target temperature, by the temperature difference
As the coil pipe temperature difference.Wherein, one default setting temperature of air-conditioning when coil pipe target temperature can be factory, naturally it is also possible to be
The set temperature voluntarily selected by user and be arranged.If it is by user's sets itself, since user is for coil temperature
Concept and its representative performance indicator be not it is very clear, a reference temperature value, choosing for reference are preferably provided by air-conditioning
It is fixed.Such as, it is proposed that the coil pipe target temperature is set as 14 DEG C.Then, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtained
Third target frequency is defined as to the target frequency that compressor is controlled, and by the target frequency.The acquisition pair of disk temperature PID arithmetic
The method for the target frequency that compressor is controlled can obtain compressor target with reference to room temperature PID operation in the prior art
The method of frequency.Wherein, the original frequency of disk temperature PID arithmetic can be the original frequency of a setting.Preferably, disk temperature PID
The original frequency of operation be step 12 determine real-time indoor environment temperature be less than setting comfort temperature, into the second control process when
The current operation frequency of compressor.Moreover, the current operation frequency at least compressor run a period of time (such as 3min) it
A running frequency afterwards.
Then, select the smaller value in first frequency, second frequency and third frequency as target frequency, according to target frequency
Rate controls the compressor operation of air-conditioning.
Frequency of air condition compressor is controlled using the above method, has been comprehensively considered between temperature factor and wind speed factor
Cooperation, so that the air-flow of blower operating driving is formed during driving heat exchange amount caused by refrigerant when compressor is run and being somebody's turn to do
Heat exchange amount match, avoid that press frequency is excessively high or rotation speed of fan it is excessively high caused by meaningless energy consumption, realize air-conditioning
Energy-saving run.Moreover, wind speed controls at a distance from air conditioning room according to target, the comfort of air-supply and relaxing for user are also improved
Appropriateness.In addition, for temperature factor in the control of compressor frequency, according to the big of indoor environment temperature and setting comfort temperature
It is small, selection using room temperature PID control or use the disk temperature PID control based on evaporator coil temperature, can when room temperature is high and
When, quickly cool down to room, reach refrigeration purpose, and coil temperature can be stablized in coil pipe target temperature, make to have leisure
It recalls that air temperature is comfortable, reaches cool without cold comfortable cooling effect out.
Moreover, still constantly obtaining real-time indoor environment temperature, and relatively more real-time during execution second controls
The size of indoor environment temperature and setting comfort temperature.Once real-time indoor environment temperature is then moved back not less than setting comfort temperature
Second control process out is transferred to the first control process, so that room temperature is stablized in setting indoor target temperature.
As preferred embodiment, in real-time indoor environment temperature not less than comfort temperature and real-time indoor environment temperature
When the difference of degree and setting comfort temperature is greater than setting difference, then the second control process is exited, is transferred to the first control process.Pass through
Setting difference is reasonably selected, for example, being set as 1 DEG C, it can be ensured that coil temperature is not less than coil pipe target temperature, guarantees cool out
Without cold comfort.
Embodiment more preferably is previously stored with a setting highest frequency in the memory of air-conditioning master control borad,
If step 14 determines that the smaller value in first frequency and second frequency is greater than setting highest frequency or step 15 determines first
Smaller value in frequency, second frequency and third frequency is greater than setting highest frequency, then will set highest frequency as target frequency
Rate.That is, either which frequency to control compressor according to, the running frequency of guarantee compressor is no more than setting highest
Frequency.
Fig. 2 is referred to, the figure shows the structural block diagrams that the present invention realizes device one embodiment of air conditioner refrigerating control.
As shown in Fig. 2, the structural unit and its function that the air conditioner refrigerating 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.
Disk temperature PID arithmetic unit 204, for calculating the real-time coil temperature of the acquisition of coil temperature acquiring unit 203 and setting
The temperature difference between price fixing pipe target temperature carries out PID arithmetic according to the real-time coil pipe temperature difference, obtains simultaneously as the real-time coil pipe temperature difference
Export third frequency.
Infrared distance measurement unit 205 includes infrared distance sensor, for indoor target where obtaining air-conditioning in real time with
Real-time range between air-conditioning.
Real-time wind speed acquiring unit 206, for according to the acquisition of the corresponding relationship of known distance and wind speed and real-time range
Corresponding wind speed, and as real-time wind speed.
Second frequency acquiring unit 207, for being obtained and real-time wind speed according to the corresponding relationship of known wind speed and frequency
Corresponding frequency, as second frequency.
Control model selecting unit 208, for comparing real-time interior ring acquired in indoor environment temperature acquiring unit 201
Border temperature and setting comfort temperature, and comparison result is exported as control model selection signal.
First control unit 209, the comparison result for exporting in control model selecting unit 208 are real-time indoor environment
When temperature is not less than setting comfort temperature, the first frequency and second frequency for selecting room temperature PID arithmetic element 202 to export obtain single
Smaller value in the second frequency of 207 output of member is run as target frequency according to the compressor that target frequency controls air-conditioning.
Second control unit 210, the comparison result for exporting in control model selecting unit 208 are real-time indoor environment
When temperature is less than setting comfort temperature, first frequency, the second frequency acquiring unit of the output of room temperature PID arithmetic element 202 are selected
The smaller value in third frequency that the second frequency and disk temperature PID arithmetic unit 204 of 207 outputs export is as target frequency, root
According to the compressor operation of target frequency control air-conditioning.
Each structural unit in above-mentioned apparatus runs corresponding software program, and executes air conditioner refrigerating according to the process of Fig. 1
The comfortable control of the energy conservation of air-conditioning is realized in control.
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 (7)
1. a kind of method for realizing air conditioner refrigerating control, which is characterized in that the described method includes:
Air conditioner refrigerating operation 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 indoor target temperature, as the real-time indoor temperature difference, according to the real-time indoor temperature difference into
Row room temperature PID operation obtains first frequency；Room where obtaining air-conditioning using the infrared distance measurement unit with infrared distance sensor
Real-time range between interior target and air-conditioning, according to the determination of the corresponding relationship of known distance and wind speed and the real-time range
Corresponding wind speed and as real-time wind speed, obtains corresponding with the real-time wind speed according to known wind speed and the corresponding relationship of frequency
Frequency, as second frequency；
The real-time indoor environment temperature is made comparisons with setting comfort temperature；
If the real-time indoor environment temperature is not less than the setting comfort temperature, the first following control is executed: described in selection
The compressor of smaller value control air-conditioning in first frequency and the second frequency is run；
If the real-time indoor environment temperature is less than the setting comfort temperature, executes the second following control: obtaining air-conditioning and steam
The real-time coil temperature and setting coil pipe target temperature for sending out device, calculate the real-time coil temperature and the setting coil pipe target temperature
The temperature difference between degree carries out disk temperature PID arithmetic according to the real-time coil pipe temperature difference as the real-time coil pipe temperature difference, obtains third frequency
Rate selects the smaller value in the first frequency, the second frequency and the third frequency to control the compressor operation of air-conditioning.
2. the method according to claim 1, wherein in the wind speed and the corresponding relationship of frequency, a wind speed
Multiple frequencies are corresponded to, the second frequency is the corresponding maximum frequency of the real-time wind speed.
3. the method according to claim 1, wherein if the first frequency with it is smaller in the second frequency
Smaller value in value or the first frequency, the second frequency and the third frequency is greater than setting highest frequency, then will
The setting highest frequency is run as the target frequency according to the compressor that the target frequency controls air-conditioning.
4. according to the method in any one of claims 1 to 3, which is characterized in that in the process for executing second control
In, continue to obtain the real-time indoor environment temperature and the real-time indoor environment temperature and the setting comfort temperature are made into ratio
Compared with exiting described second and control, described in execution when the real-time indoor environment temperature is not less than the setting comfort temperature
First control.
5. according to the method described in claim 4, it is characterized in that, continuing to obtain during executing the described second control
The real-time indoor environment temperature simultaneously makes comparisons the real-time indoor environment temperature with the setting comfort temperature, in the reality
When indoor environment temperature not less than the setting comfort temperature and the real-time indoor environment temperature and the setting comfort temperature
Difference when being greater than setting difference, exit second control, execute first control.
6. 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 compressor, using the current operation frequency as the original frequency of the disk temperature PID arithmetic, and according to institute
It states the coil pipe temperature difference and carries out the disk temperature PID arithmetic.
7. a kind of device for realizing air conditioner refrigerating control, 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；
Disk temperature PID arithmetic unit, for calculating the real-time coil temperature and setting the temperature difference between 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 third 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 wind speed acquiring unit, it is corresponding with the real-time range for being obtained according to known distance with the corresponding relationship of wind speed
Wind speed, and as real-time wind speed；
Second frequency acquiring unit, it is corresponding with the real-time wind speed for being obtained according to known wind speed with the corresponding relationship of frequency
Frequency, as second frequency；
Control model selecting unit for the real-time indoor environment temperature and setting comfort temperature, and exports and compares knot
Fruit is as control model selection signal；
First control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor environment temperature
When degree is not less than the setting comfort temperature, the smaller value control air-conditioning in the first frequency and the second frequency is selected
Compressor operation；
Second control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor environment temperature
When degree is less than the setting comfort temperature, select smaller in the first frequency, the second frequency and the third frequency
The compressor operation of value control air-conditioning.
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| 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 |
| CN108105966A (en) * | 2017-10-31 | 2018-06-01 | 青岛海尔空调器有限总公司 | Air conditioner refrigeration control method |
| CN109114763B (en) * | 2018-10-26 | 2022-01-25 | 广东美的制冷设备有限公司 | Control device of air conditioner, control method of air conditioner and readable storage medium |
| CN111649439B (en) * | 2020-05-08 | 2021-12-31 | 宁波奥克斯电气股份有限公司 | Air conditioner control method |
| CN114811890B (en) * | 2022-02-28 | 2024-05-24 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN115930408B (en) * | 2022-11-21 | 2024-07-02 | 珠海格力电器股份有限公司 | Refrigeration control method and device of water chilling unit, water chilling unit and storage medium |
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| CN104251538A (en) * | 2014-09-12 | 2014-12-31 | 广东美的制冷设备有限公司 | Air conditioner and control method and control device thereof |
| CN104314796A (en) * | 2014-10-21 | 2015-01-28 | 芜湖美智空调设备有限公司 | Compressor frequency controlling method, compressor frequency controlling device and air conditioner |
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