CN106016600A - Frequency control method and device for inverter air conditioner and inverter air conditioner - Google Patents
Frequency control method and device for inverter air conditioner and inverter air conditioner Download PDFInfo
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- CN106016600A CN106016600A CN201610354087.1A CN201610354087A CN106016600A CN 106016600 A CN106016600 A CN 106016600A CN 201610354087 A CN201610354087 A CN 201610354087A CN 106016600 A CN106016600 A CN 106016600A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/59—Remote control for presetting
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Abstract
The invention discloses a frequency control method and device for an inverter air conditioner and the inverter air conditioner. The frequency control method comprises the steps that the air conditioner operates in a refrigerating mode, and room temperature PID computation is conducted according to a temperature difference between a real-time indoor ambient temperature and a set target temperature to obtain first frequency; a heat source in a room where the air conditioner is located is detected, a real-time distance between the heat source and the air conditioner is determined, and frequency corresponding to the real-time distance is determined and serves as second frequency; coil pipe temperature PID computation is conducted according to a temperature difference between a real-time coil pipe temperature and a set pipe target temperature to obtain third frequency; if the real-time indoor ambient temperature is not smaller than a set comfortable temperature, the smaller one of the first frequency and the second frequency is selected as the target frequency; if the real-time indoor ambient temperature is smaller than the set comfortable temperature, the smallest one of the first frequency, the second frequency and the third frequency is selected as the target frequency; and a compressor of the air conditioner is controlled to operate according to the target frequency. Application of the frequency control method and device for the inverter air conditioner and the inverter air conditioner can achieve energy-saving and comfortable control for the air conditioner.
Description
Technical field
The invention belongs to air-conditioning technique field, specifically, relate to regulate the air-conditioning equipment of room air, more specifically, relate to based on convertible frequency air-conditioner control method for frequency, control device and convertible frequency air-conditioner.
Background technology
Air-conditioning can freeze summer, winter can heat, it is possible to regulation indoor temperature reaches cool in summer and warm in winter, provides the user comfortable environment.While air-conditioning provides the user comfortableness, incident is the contradiction with high energy consumption.Energy expenditure not only increases user's financial burden, also opposing with the trend of energy-conserving and environment-protective.Therefore, while utilizing air-conditioning to provide the user a home from home, how to reduce the energy consumption of air-conditioning, be current air-conditioner producer have been working hard solve problem.
Existing convertible frequency air-conditioner can control compressor operating frequency according to indoor environment temperature and target setting temperature, reaches energy-saving and cost-reducing purpose.But, more excellent energy-conservation comfortable control can not be realized according to the control mode of temperature control compressor operating frequency merely.
Summary of the invention
It is an object of the invention to provide a kind of convertible frequency air-conditioner control method for frequency and control device, it is achieved the control energy-conservation, comfortable of air-conditioning.
For achieving the above object, the convertible frequency air-conditioner control method for frequency that the present invention provides uses following technical proposals to be achieved:
A kind of convertible frequency air-conditioner control method for frequency, described method includes:
Air conditioner refrigerating runs, obtain real-time indoor environment temperature and set indoor objects temperature, calculating the temperature difference between described real-time indoor environment temperature and described setting indoor objects temperature, as the most indoor temperature difference, room temperature PID computing is carried out, it is thus achieved that first frequency according to the described real-time indoor temperature difference；Detect the indoor thermal source in air-conditioning place in real time and determine the real-time distance between described thermal source and air-conditioning, obtaining the frequency corresponding with described real-time distance according to known distance with the corresponding relation of frequency, as second frequency；
Described real-time indoor environment temperature is made comparisons with setting suitable temperature；
If described real-time indoor environment temperature is not less than described setting suitable temperature, perform the first following control: select described first frequency to control the compressor operating of air-conditioning with the smaller value in described second frequency；
If described real-time indoor environment temperature is less than described setting suitable temperature, perform the second following control: obtain the real-time coil temperature of A/C evaporator and set coil pipe target temperature, calculate the temperature difference between described real-time coil temperature and described setting coil pipe target temperature, as the real-time coil pipe temperature difference, dish temperature PID arithmetic is carried out according to the described real-time coil pipe temperature difference, obtain the 3rd frequency, select the smaller value in described first frequency, described second frequency and described 3rd frequency to control the compressor operating of air-conditioning.
For realizing aforementioned invention purpose, the convertible frequency air-conditioner frequency control apparatus that the present invention provides uses following technical proposals to be achieved:
A kind of convertible frequency air-conditioner frequency control apparatus, described device includes:
Indoor environment temperature acquiring unit, is used 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 described real-time indoor environment temperature and the temperature difference set between indoor objects temperature, as the most indoor temperature difference, carries out PID arithmetic according to the described real-time indoor temperature difference, it is thus achieved that and export first frequency；
Dish temperature PID arithmetic unit, for calculating the temperature difference between described real-time coil temperature and setting coil pipe target temperature, as the real-time coil pipe temperature difference, carries out PID arithmetic according to the described real-time coil pipe temperature difference, it is thus achieved that and export the 3rd frequency；
Thermal source determines and distance acquiring unit, and the thermal source indoor for detection air-conditioning place in real time also determines the real-time distance between described thermal source and air-conditioning；
Second frequency acquiring unit, for obtaining the frequency corresponding with described real-time distance according to known distance with the corresponding relation of frequency, as second frequency；
Control model selects unit, for relatively described real-time indoor environment temperature with set suitable temperature, and export comparative result and select signal as control model；
First control unit, during for selecting the comparative result of unit output to be described real-time indoor environment temperature not less than described setting suitable temperature in described control model, select described first frequency and the smaller value in described second frequency as target frequency, control the compressor operating of air-conditioning according to described target frequency；
Second control unit, during for selecting the comparative result of unit output to be described real-time indoor environment temperature less than described setting suitable temperature in described control model, select the smaller value in described first frequency, described second frequency and described 3rd frequency as target frequency, control the compressor operating of air-conditioning according to described target frequency.
Additionally, present invention also offers a kind of convertible frequency air-conditioner with above-mentioned convertible frequency air-conditioner frequency control apparatus.
Compared with prior art, advantages of the present invention and good effect are:
In the present invention, when compressor is carried out FREQUENCY CONTROL, consider coordinating between temperature factor and thermal source with the distance factor of air conditioning room, it is achieved that the energy-saving run of air-conditioning and comfortable air-supply.In addition, for in the temperature factor control to compressor frequency, according to indoor environment temperature and the size setting suitable temperature, select to use room temperature PID to control or use dish temperature PID based on evaporator coil temperature to control, when room temperature height in time, quickly room is lowered the temperature can reach purpose of freezing, again can be by coil temperature stably at coil pipe target temperature, make air conditioning exhausting temperature pleasant, reach cool and the coldest comfortable cooling effect.
After reading in conjunction with the accompanying the detailed description of the invention of the present invention, the other features and advantages of the invention will become clearer from.
Accompanying drawing explanation
Fig. 1 is the flow chart of one embodiment of convertible frequency air-conditioner control method for frequency of the present invention；
Fig. 2 is the structured flowchart of one embodiment of convertible frequency air-conditioner frequency control apparatus of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below with reference to drawings and Examples, the present invention is described in further detail.
Referring to Fig. 1, this figure show the flow chart of one embodiment of convertible frequency air-conditioner control method for frequency of the present invention.
As it is shown in figure 1, the method that this embodiment realizes convertible frequency air-conditioner FREQUENCY CONTROL uses the flow process with following step to realize:
Step 11: air conditioner refrigerating runs, obtains real-time indoor environment temperature, sets indoor objects temperature, meanwhile, detects the indoor thermal source in air-conditioning place in real time and determines the real-time distance of thermal source and air conditioning room.
Specifically, when air-conditioning start runs, the indoor environment temperature in room residing for detection air-conditioning in real time, the temperature of detection is as real-time indoor environment temperature in real time.So-called real-time indoor environment temperature, refers to after air-conditioning start runs, the indoor environment temperature constantly obtaining according to design temperature sample frequency and updating.The acquisition of indoor environment temperature in real time can use prior art to realize.Such as, by being arranged on air-conditioning air inlet or the temperature sensor detection inlet temperature near air-conditioning air inlet, the master control borad of air-conditioning passes through the output signal of collecting temperature sensor and processes, thus gets inlet temperature, and using this temperature as real-time indoor environment temperature.
Set indoor objects temperature to refer to wish the target temperature that indoor environment can reach, this setting indoor objects temperature can be the temperature value that user passes through remote controller or control terminal for air conditioner or air-conditioning panel is inputted, it is also possible to be a setting value automatically calling of air-conditioning master control borad.No matter which kind of mode this temperature value uses set, and all can be got by air-conditioning master control borad.
After air-conditioning start runs, except detecting the real-time indoor environment temperature in room residing for air-conditioning in real time, also to detect the thermal source that air-conditioning place is indoor in real time, and determine the real-time distance of thermal source and air conditioning room.So-called real-time distance, is after running in air-conditioning start, constantly obtains and distance between the indoor airflow and the air-conditioning that update according to setting sample frequency.The detection of thermal source and thermal source can use prior art to realize with the determination of distance of air conditioning room.Such as, by arranging infrared sensor array or common infrared sensor on air-conditioning, calculate in conjunction with certain algorithm.
As preferred embodiment, detect the indoor thermal source in air-conditioning place and determine the real-time distance between thermal source and air-conditioning, using following technological means to obtain, specifically include:
The infrared sensor controlled in air-conditioning carries out rotary scanning, it is thus achieved that the temperature information in sweep limits, obtains heat source temperature curve according to temperature information.
Specifically, can arrange infrared sensor and rotating mechanism on air-conditioning, the controller of air-conditioning controls rotating mechanism and drives infrared sensor to rotate in bigger angular range.Region in the range of scanning angle is scanned by the infrared sensor rotated, the temperature information of Real-time Collection scanning area.The reflection of this temperature information is the radiant intensity of object in the sweep limits that currently gathers of infrared sensor, and radiant intensity is the strongest, then it represents that the temperature value that infrared sensor gathers is the highest.Therefore, in the scanning process of infrared sensor, before scanning thermal source, arrive the process after scanning thermal source again to source center, the temperature value of infrared sensor sampling is to arrive a low process the most again, and this is the process scanning a thermal source.Air-conditioning receives the temperature information of infrared sensor sampling, the temperature curve analyzing generation indoor airflow of the i.e. radiant intensity of temperature information by gathering infrared sensor.
Driving infrared sensor to rotate by rotational structure, so having only to single-point infrared sensor can realize the temperature scanning of whole spatial dimension, it is not necessary to array infrared sensor, data process relatively simple, expend the time short.
Then, the real-time distance between thermal source and thermal source and the air-conditioning that air-conditioning place is indoor is determined according to heat source temperature curve.
Specifically, air-conditioner, by the crest value in analysis temperature curve, the radiant intensity of crest value correspondence thermal source, may determine that the number of thermal source in current environment according to crest value, and wherein, the coordinate figure of crest value is the coordinate figure i.e. position of thermal source.And, the temperature value of infrared sensor sampling has relation with the distance of object, and when object distance air-conditioning is the most remote, the temperature value that infrared sensor gathers is the lowest, otherwise, closer to object true temperature value.Specifically, the distance between thermal source and air-conditioner can be determined according to difference between temperature maximum and minimum in temperature curve, the maximum of temperature value and the difference of minima according to scan period mid-infrared sensor acquisition can interpolate that the thermal source of Current Scan and the relative distance of background, difference is the least, illustrating that thermal source is close with background, i.e. thermal source is with air-conditioning farther out.
Step 12: calculate real-time indoor environment temperature and the temperature difference set between indoor objects temperature, as the most indoor temperature difference, carries out room temperature PID computing according to the most indoor temperature difference, it is thus achieved that first frequency；The frequency corresponding with distance in real time is obtained with the corresponding relation of frequency, as second frequency according to known distance.
Master control borad, after getting real-time indoor environment temperature and setting indoor objects temperature, calculates the temperature difference between the two, as the most indoor temperature difference.Then, carry out room temperature PID computing according to the most indoor temperature difference, it is thus achieved that the frequency that compressor is controlled, and this frequency is defined as first frequency.Wherein, carry out room temperature PID computing according to the temperature difference, obtain the concrete grammar of target frequency that compressor is controlled prior art can be used to realize, be not elaborated at this and limit.
Meanwhile, the frequency corresponding with distance in real time is obtained always according to known distance with the corresponding relation of frequency, as second frequency.
Specifically, being previously stored with the corresponding relation of distance and frequency in the memorizer of air-conditioning master control borad, wherein, distance refers to the distance between indoor airflow and air-conditioning, and frequency refers to the running frequency of compressor.Preferably, distance and the corresponding relation of frequency by research staff under theoretical direction, obtained by substantial amounts of operation of air conditioner simulation experiment, it is possible to take into account air-conditioning comfortableness and energy saving as far as possible.And, present positively related relation between distance and frequency.That is, distance is the least, frequency is the lowest；Vice versa.And, the corresponding relation between distance and frequency, can carry out, by specific calculation, a kind of relation of calculating, it is also possible to be by the form of form relation one to one.Calculate if by calculation, then prestore calculation, obtaining in real time apart from afterwards, calculate the frequency of distance correspondence in real time and as second frequency according to distance and calculation in real time.And if by the relation one to one of the form formation of form, afterwards, the mode tabled look-up can be taked to read out in real time apart from corresponding frequency and as second frequency according to real-time distance obtaining distance in real time.Setting up distance from the starting point of the corresponding relation of frequency is: thermal source and air-conditioning are apart from different, and the requirement to leaving air temp is different.In cooling mode, for making air-conditioning can provide the most reasonably air-out comfortableness for thermal source, when thermal source is less with air-conditioning distance, expect to raise leaving air temp, the wind avoiding temperature too low causes discomfort to thermal source, then compressor frequency carries out limit frequency, after limit frequency, leaving air temp can be raised, energy consumption can also be reduced simultaneously.
Step 13: judge that whether real-time indoor environment temperature is less than setting suitable temperature.If so, step 15 is performed；If it has not, perform step 14.
This step can be carried out with step 12 simultaneously, is divided into two steps at this merely to clearly state the control process of this embodiment.After step 11 gets real-time indoor environment temperature, real-time indoor environment temperature is made comparisons with setting suitable temperature, and judge that whether real-time indoor environment temperature is less than setting suitable temperature, in order to perform step 14 or the control of step 15 according to comparative result.Wherein, one default setting temperature of air-conditioning when suitable temperature can be to dispatch from the factory is set, it is also possible to be a design temperature that is selected voluntarily by user and that arrange.If by user's sets itself, air-conditioning can provide a reference temperature value, for reference.Such as, it is proposed that this suitable temperature is set as 27 DEG C.
Step 14: if step 13 judges real-time indoor environment temperature not less than setting suitable temperature, then perform the first following control: select first frequency and the smaller value in second frequency as target frequency, control the compressor operating of air-conditioning according to target frequency.
If indoor environment temperature is not less than setting suitable temperature in real time, show that now indoor temperature is higher, needs fast cooling.In the case of this, first frequency that comparison step 12 obtains and second frequency, select the smaller value in both, as target frequency, control the compressor operating of air-conditioning according to target frequency.
Step 15: if step 13 judges real-time indoor environment temperature less than setting suitable temperature, then perform the second following control: obtain the real-time coil temperature of A/C evaporator and set coil pipe target temperature, calculate the temperature difference between real-time coil temperature and setting coil pipe target temperature, as the real-time coil pipe temperature difference, dish temperature PID arithmetic is carried out according to the real-time coil pipe temperature difference, obtain the 3rd frequency, select the smaller value in first frequency, second frequency and the 3rd frequency as target frequency, control the compressor operating of air-conditioning according to target frequency.
If step 13 judges that indoor temperature is less than suitable temperature, for avoiding the too fast decline of temperature to cause body-sensing uncomfortable, consider evaporator coil temperature further, to adjust compressor operating frequency in time, make evaporator coil temperature can be stabilized to coil pipe target temperature, to adjust air conditioning exhausting temperature, reach cool and the coldest comfortable air-out effect.
Specifically, first, obtain the real-time coil temperature of A/C evaporator and set coil pipe target temperature, calculate the temperature difference between real-time coil temperature and setting coil pipe target temperature, as the real-time coil pipe temperature difference, carry out dish temperature PID arithmetic according to the real-time coil pipe temperature difference, it is thus achieved that the 3rd frequency.
Wherein, the detection of evaporator coil temperature can detect by arranging coil temperature sensor on an evaporator.After detecting coil temperature in real time, calculate the temperature difference between real-time coil temperature and setting coil pipe target temperature, using this temperature difference as the coil pipe temperature difference.Wherein, one default setting temperature of air-conditioning when coil pipe target temperature can be to dispatch from the factory, naturally it is also possible to be a design temperature that is selected voluntarily by user and that arrange.If by user's sets itself, owing to user is not very clear and definite for the concept of coil temperature and the performance indications of representative thereof, preferably provided a reference temperature value by air-conditioning, for reference selected.Such as, it is proposed that this coil pipe target temperature is set as 14 DEG C.Then, carry out dish temperature PID arithmetic according to the coil pipe temperature difference, it is thus achieved that the target frequency that compressor is controlled, and this target frequency is defined as the 3rd target frequency.The method that the method for the target frequency that compressor is controlled by the acquisition of dish temperature PID arithmetic is referred to room temperature PID computing of the prior art and obtains compressor target frequency.Wherein, the original frequency of dish temperature PID arithmetic can be an original frequency set.Preferably, the original frequency of dish temperature PID arithmetic is that step 12 judges real-time indoor environment temperature less than the current operation frequency of compressor when setting suitable temperature, enter the second control process.And, this current operation frequency is at least a running frequency after compressor operating a period of time (such as 3min).
Then, select the smaller value in first frequency, second frequency and the 3rd frequency as target frequency, control the compressor operating of air-conditioning according to target frequency.
Use said method that frequency of air condition compressor is controlled, consider coordinating between temperature factor and thermal source with the distance factor of air conditioning room, it is achieved that the energy-saving run of air-conditioning and comfortable air-supply.In addition, in considering the temperature factor control to compressor frequency, according to indoor environment temperature and the size setting suitable temperature, select to use room temperature PID to control or use dish temperature PID based on evaporator coil temperature to control, when room temperature height in time, quickly room is lowered the temperature can reach purpose of freezing, again can be by coil temperature stably at coil pipe target temperature, make air conditioning exhausting temperature pleasant, reach cool and the coldest comfortable cooling effect.
And, during performing the second control, the most constantly obtain real-time indoor environment temperature, and relatively real-time indoor environment temperature and the size setting suitable temperature.Once indoor environment temperature not less than setting suitable temperature, then exits the second control process, is transferred to the first control process in real time, so that indoor temperature is stable is setting indoor objects temperature.
As preferred embodiment, when real-time indoor environment temperature is not less than suitable temperature and indoor environment temperature and the difference setting suitable temperature are more than setting difference in real time, then exit the second control process, be transferred to the first control process.By rationally selecting setting difference, such as, it is set as 1 DEG C, it can be ensured that coil temperature is not less than coil pipe target temperature, it is ensured that go out cool and the coldest comfortableness.
As preferred embodiment, the memorizer of air-conditioning master control borad is previously stored with one and sets highest frequency, if step 14 judges that the smaller value in first frequency and second frequency is more than setting highest frequency, or step 15 judges that the smaller value in first frequency, second frequency and the 3rd frequency more than setting highest frequency, then will set highest frequency as target frequency.It is to say, no matter be according to which FREQUENCY CONTROL compressor, all ensure that the running frequency of compressor is less than setting highest frequency.
Refer to Fig. 2, the figure shows the structured flowchart of one embodiment of convertible frequency air-conditioner frequency control apparatus of the present invention.
As in figure 2 it is shown, the construction unit that comprised of the convertible frequency air-conditioner frequency control apparatus of this embodiment and function thereof are as follows:
Indoor environment temperature acquiring unit 201, is used for obtaining real-time indoor environment temperature.
Room temperature PID arithmetic element 202, for calculating the real-time indoor environment temperature that indoor environment temperature acquiring unit 201 obtains and the temperature difference set between indoor objects temperature, as the most indoor temperature difference, carry out PID arithmetic according to the most indoor temperature difference, it is thus achieved that and export first frequency.
Coil temperature acquiring unit 203, for obtaining the real-time coil temperature of A/C evaporator.
Dish temperature PID arithmetic unit 204, for calculating the temperature difference between real-time coil temperature and the setting coil pipe target temperature that coil pipe temperature acquiring unit 203 obtains, as the real-time coil pipe temperature difference, carries out PID arithmetic according to the real-time coil pipe temperature difference, it is thus achieved that and export the 3rd frequency.
Thermal source determines and distance acquiring unit 205, and the thermal source indoor for detection air-conditioning place in real time also determines the real-time distance between thermal source and air-conditioning.
Second frequency acquiring unit 206, for obtaining the frequency corresponding with distance in real time according to known distance with the corresponding relation of frequency, as second frequency.
Control model selects unit 207, for comparing real-time indoor environment temperature acquired in indoor environment temperature acquiring unit 201 and setting suitable temperature, and exports comparative result and selects signal as control model.
First control unit 208, for selecting the comparative result of unit 207 output to be in control model, real-time indoor environment temperature is not less than when setting suitable temperature, select the smaller value in the first frequency of room temperature PID arithmetic element 202 output and the second frequency of second frequency acquiring unit 206 output as target frequency, control the compressor operating of air-conditioning according to target frequency.
Second control unit 209, for selecting the comparative result of unit 207 output to be in control model, real-time indoor environment temperature is less than when setting suitable temperature, select the smaller value in the second frequency of the first frequency of room temperature PID arithmetic element 202 output, second frequency acquiring unit 206 output and the 3rd frequency of dish temperature PID arithmetic unit 204 output as target frequency, control the compressor operating of air-conditioning according to target frequency.
Thermal source determines and distance acquiring unit 205 can use and can detect thermal source in prior art and determine that the structure of distance realizes.As preferred embodiment, thermal source determines and distance acquiring unit 205 uses following structure to realize:
Including:
Infrared sensor, is arranged in air-conditioning；
Rotating mechanism, is used for driving infrared sensor to rotate；
Thermal source determines and distance obtains subelement, for obtaining the temperature information in infrared sensor sweep limits, obtains heat source temperature curve according to temperature information, determines the real-time distance between thermal source and thermal source and the air-conditioning that air-conditioning place is indoor according to heat source temperature curve.
Each construction unit in said apparatus runs corresponding software program, and according to the flow performing air-conditioning FREQUENCY CONTROL of Fig. 1, it is achieved the control energy-conservation, comfortable of air-conditioning.
And, the air-conditioning frequency control apparatus of Fig. 2 can be applied in convertible frequency air-conditioner, forms the convertible frequency air-conditioner with operation function energy-conservation, comfortable.
Above example is only in order to illustrate technical scheme, rather than is limited；Although the present invention being described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still the technical scheme described in previous embodiment can be modified, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of claimed technical solution of the invention.
Claims (10)
1. a convertible frequency air-conditioner control method for frequency, it is characterised in that described method includes:
Air conditioner refrigerating runs, obtain real-time indoor environment temperature and set indoor objects temperature, calculating the temperature difference between described real-time indoor environment temperature and described setting indoor objects temperature, as the most indoor temperature difference, room temperature PID computing is carried out, it is thus achieved that first frequency according to the described real-time indoor temperature difference；Detect the indoor thermal source in air-conditioning place in real time and determine the real-time distance between described thermal source and air-conditioning, obtaining the frequency corresponding with described real-time distance according to known distance with the corresponding relation of frequency, as second frequency；
Described real-time indoor environment temperature is made comparisons with setting suitable temperature；
If described real-time indoor environment temperature is not less than described setting suitable temperature, perform the first following control: select described first frequency to control the compressor operating of air-conditioning with the smaller value in described second frequency；
If described real-time indoor environment temperature is less than described setting suitable temperature, perform the second following control: obtain the real-time coil temperature of A/C evaporator and set coil pipe target temperature, calculate the temperature difference between described real-time coil temperature and described setting coil pipe target temperature, as the real-time coil pipe temperature difference, dish temperature PID arithmetic is carried out according to the described real-time coil pipe temperature difference, obtain the 3rd frequency, select the smaller value in described first frequency, described second frequency and described 3rd frequency to control the compressor operating of air-conditioning.
Method the most according to claim 1, it is characterised in that described distance is positive correlation with the corresponding relation of frequency.
3. according to the method described in right 1, it is characterised in that thermal source that described detection air-conditioning place is indoor also determines the real-time distance between described thermal source and air-conditioning, specifically includes:
The infrared sensor controlled in air-conditioning carries out rotary scanning, it is thus achieved that the temperature information in sweep limits, obtains heat source temperature curve according to described temperature information；
The real-time distance between thermal source and described thermal source and the air-conditioning that air-conditioning place is indoor is determined according to described heat source temperature curve.
Method the most according to claim 1, it is characterized in that, if described first frequency is more than with the smaller value in described second frequency or the smaller value in described first frequency, described second frequency and described 3rd frequency sets highest frequency, then using described setting highest frequency as described target frequency, control the compressor operating of air-conditioning according to described target frequency.
Method the most according to any one of claim 1 to 4, it is characterized in that, during performing described second control, continue obtain described real-time indoor environment temperature and made comparisons with described setting suitable temperature by described real-time indoor environment temperature, when described real-time indoor environment temperature is not less than described setting suitable temperature, exit the second described control, perform described first and control.
Method the most according to claim 5, it is characterized in that, during performing described second control, continue obtain described real-time indoor environment temperature and made comparisons with described setting suitable temperature by described real-time indoor environment temperature, when described real-time indoor environment temperature is more than setting difference not less than the difference of described setting suitable temperature and described real-time indoor environment temperature and described setting suitable temperature, exit the second described control, perform described first and control.
Method the most according to any one of claim 1 to 4, it is characterized in that, when performing described second and controlling, obtain the current operation frequency of compressor, using described current operation frequency as the original frequency of described dish temperature PID arithmetic, and carry out described dish temperature PID arithmetic according to the described coil pipe temperature difference.
8. a convertible frequency air-conditioner frequency control apparatus, it is characterised in that described device includes:
Indoor environment temperature acquiring unit, is used 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 described real-time indoor environment temperature and the temperature difference set between indoor objects temperature, as the most indoor temperature difference, carries out PID arithmetic according to the described real-time indoor temperature difference, it is thus achieved that and export first frequency；
Dish temperature PID arithmetic unit, for calculating the temperature difference between described real-time coil temperature and setting coil pipe target temperature, as the real-time coil pipe temperature difference, carries out PID arithmetic according to the described real-time coil pipe temperature difference, it is thus achieved that and export the 3rd frequency；
Thermal source determines and distance acquiring unit, and the thermal source indoor for detection air-conditioning place in real time also determines the real-time distance between described thermal source and air-conditioning；
Second frequency acquiring unit, for obtaining the frequency corresponding with described real-time distance according to known distance with the corresponding relation of frequency, as second frequency；
Control model selects unit, for relatively described real-time indoor environment temperature with set suitable temperature, and export comparative result and select signal as control model；
First control unit, during for selecting the comparative result of unit output to be described real-time indoor environment temperature not less than described setting suitable temperature in described control model, described first frequency is selected to control the compressor operating of air-conditioning with the smaller value in described second frequency；
Second control unit, during for selecting the comparative result of unit output to be described real-time indoor environment temperature less than described setting suitable temperature in described control model, the smaller value in described first frequency, described second frequency and described 3rd frequency is selected to control the compressor operating of air-conditioning.
Device the most according to claim 8, it is characterised in that described thermal source determines and distance acquiring unit includes:
Infrared sensor, is arranged in air-conditioning；
Rotating mechanism, is used for driving described infrared sensor to rotate；
Thermal source determines and distance obtains subelement, temperature information in obtaining described infrared sensor sweep limits, obtain heat source temperature curve according to described temperature information, determine the real-time distance between thermal source and described thermal source and the air-conditioning that air-conditioning place is indoor according to described heat source temperature curve.
10. a convertible frequency air-conditioner, it is characterised in that described convertible frequency air-conditioner includes the convertible frequency air-conditioner frequency control apparatus described in the claims 8 or 9.
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| CN201610354087.1A CN106016600B (en) | 2016-05-25 | 2016-05-25 | Convertible frequency air-conditioner control method for frequency, control device and convertible frequency air-conditioner |
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| CN106556119A (en) * | 2016-12-01 | 2017-04-05 | 青岛海尔空调器有限总公司 | Convertible frequency air-conditioner control method for frequency, control device and convertible frequency air-conditioner |
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| CN106610087A (en) * | 2016-12-01 | 2017-05-03 | 青岛海尔空调器有限总公司 | Air conditioner refrigeration control achieving method and device |
| CN106610088A (en) * | 2016-12-01 | 2017-05-03 | 青岛海尔空调器有限总公司 | Frequency control method and device for variable-frequency air conditioner |
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| CN106679070A (en) * | 2016-12-01 | 2017-05-17 | 青岛海尔空调器有限总公司 | Variable-frequency air conditioner frequency control method and control device and variable-frequency air conditioner |
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| WO2018176621A1 (en) * | 2017-03-30 | 2018-10-04 | 青岛海尔空调器有限总公司 | Control method for heating operation of air-conditioner |
| CN109163424A (en) * | 2018-09-13 | 2019-01-08 | 宁波奥克斯电气股份有限公司 | A kind of the dual temperature difference control method and system of convertible frequency air-conditioner |
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| CN106610087A (en) * | 2016-12-01 | 2017-05-03 | 青岛海尔空调器有限总公司 | Air conditioner refrigeration control achieving method and device |
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| CN106839256A (en) * | 2016-12-01 | 2017-06-13 | 青岛海尔空调器有限总公司 | The method and device of air conditioner refrigerating control is realized based on distance |
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| CN109210711A (en) * | 2018-08-23 | 2019-01-15 | 青岛海尔空调器有限总公司 | Method and apparatus based on distance controlling compressor of air conditioner |
| CN109163424A (en) * | 2018-09-13 | 2019-01-08 | 宁波奥克斯电气股份有限公司 | A kind of the dual temperature difference control method and system of convertible frequency air-conditioner |
| CN109163424B (en) * | 2018-09-13 | 2020-08-18 | 宁波奥克斯电气股份有限公司 | Double-temperature-difference control method and system of variable frequency air conditioner |
| CN112361555A (en) * | 2020-11-09 | 2021-02-12 | 珠海格力电器股份有限公司 | Air conditioner control method and device, electronic equipment and storage medium |
| CN112361555B (en) * | 2020-11-09 | 2021-12-14 | 珠海格力电器股份有限公司 | Air conditioner control method and device, electronic equipment and storage medium |
| CN114909787A (en) * | 2022-04-25 | 2022-08-16 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner and air conditioner |
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| CN115930408A (en) * | 2022-11-21 | 2023-04-07 | 珠海格力电器股份有限公司 | Refrigeration control method and device for water chilling unit, water chilling unit 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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