CN105864983A - Air conditioner control method - Google Patents
Air conditioner control method Download PDFInfo
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- CN105864983A CN105864983A CN201610269028.4A CN201610269028A CN105864983A CN 105864983 A CN105864983 A CN 105864983A CN 201610269028 A CN201610269028 A CN 201610269028A CN 105864983 A CN105864983 A CN 105864983A
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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
- 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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Abstract
The invention discloses an air conditioner control method. An air conditioner is a wall-mounted air conditioner. The method comprises the steps that the air conditioner runs, and the real-time indoor detection temperature of a room where the air conditioner is located is constantly obtained according to the set sampling period; the change rate of the real-time indoor detection temperature is calculated; different compensation temperatures are selected according to the relationship between the absolute value of the change rate of the real-time indoor detection temperature and the set change rate threshold value and the relationship between the real-time indoor detection temperature and the set target temperature, the real-time indoor detection temperature is compensated for according to the compensation temperature, and the real-time indoor environment temperature is formed; and a PID operation is conducted according to the temperature difference between the real-time indoor environment temperature and the set target temperature, the target frequency of a compressor is obtained, and the compressor of the air conditioner is controlled. The method is used for controlling the air conditioner, the comfort of air conditioner indoor temperature adjustment and air conditioner low-power-consumption energy saving performance are combined.
Description
Technical field
The invention belongs to air-conditioning technique field, specifically, relate to the air-conditioning for room air regulation, more specifically, relate to a kind of air conditioning control method.
Background technology
Air-conditioning can freeze when sky heat in summer, can heat when winter, it was cold, using the teaching of the invention it is possible to provide the environment of proper temperature, have become as requisite household electrical appliance.
Comfortableness and energy saving to indoor temperature regulation are to evaluate two important indicators that heat pump performance is good and bad at present.If indoor temperature is adjusted to the overlong time of design temperature, user cannot quickly place oneself in the midst of the environment with suitable design temperature, causes user to use the comfortableness of air-conditioning to decline.On the other hand, owing to current air-conditioning power consumption in various household electrical appliance tops the list, air conditioning energy consumption is high, and electrical network power consumption is serious, especially in summer, often due to the use of air-conditioning and cause serious severe power shortage.
Thus, how to improve the temperature regulation comfortableness of air-conditioning and reduce the power consumption of air-conditioning, always the focus and emphasis of air conditioner industry research.
Summary of the invention
It is an object of the invention to provide a kind of air conditioning control method, with comfortableness thermoregulator in taking into account air conditioning chamber and the low-power consumption energy saving of air-conditioning.
For achieving the above object, the air conditioning control method that the present invention provides uses following technical proposals to be achieved:
A kind of air conditioning control method, described air-conditioning is wall-hanging air conditioner, and described method includes:
Operation of air conditioner, constantly obtains the most indoor detection temperature in room, air-conditioning place according to the setting sampling period；
Calculate the rate of change of the most indoor detection temperature；
The absolute value of the rate of change according to described real-time indoor detection temperature selects different compensation temperature from the magnitude relationship setting rate of change threshold value and described real-time indoor detection temperature with the magnitude relationship of target setting temperature, according to described compensation temperature, described real-time indoor detection temperature is compensated, form real-time indoor environment temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described real-time indoor environment temperature and described target setting temperature.
Air conditioning control method as above, the absolute value of the rate of change according to described real-time indoor detection temperature selects different compensation temperature from the magnitude relationship setting rate of change threshold value and described real-time indoor detection temperature with the magnitude relationship of target setting temperature, according to described compensation temperature, described indoor detection temperature is compensated, form real-time indoor environment temperature, PID arithmetic is carried out according to the temperature difference between described real-time indoor environment temperature and described target setting temperature, obtain compressor target frequency and control the compressor of air-conditioning, particularly as follows:
If the absolute value of the rate of change of described real-time indoor detection temperature is more than setting rate of change threshold value, select the first compensation temperature, calculate described real-time indoor detection temperature and the described first temperature compensating temperature and and as the first indoor environment temperature, calculate the temperature difference between described first indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described first indoor environment temperature and target setting temperature；Described first selection compensating temperature so that the temperature difference between described first indoor environment temperature and described target setting temperature is more than the temperature difference between described real-time indoor detection temperature and described target setting temperature；
If the absolute value of the rate of change of described real-time indoor detection temperature is not more than described setting rate of change threshold value, it is judged that whether the temperature difference between described real-time indoor detection temperature and described target setting temperature is more than setting the temperature difference；
If the temperature difference between described real-time indoor detection temperature and described target setting temperature is more than the described setting temperature difference, select the second compensation temperature, calculate described real-time indoor detection temperature and the described second temperature compensating temperature and and as the second indoor environment temperature, calculate the temperature difference between described second indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described second indoor environment temperature and target setting temperature；Described second selection compensating temperature so that the temperature difference between described second indoor environment temperature and described target setting temperature is more than the temperature difference between described real-time indoor detection temperature and described target setting temperature；
If the temperature difference between described real-time indoor detection temperature and described target setting temperature is not more than the described setting temperature difference, calculate described real-time indoor detection temperature and the 3rd and compensate the temperature difference of temperature and as the 3rd indoor environment temperature, calculate the temperature difference between described 3rd indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described 3rd indoor environment temperature and target setting temperature；Described 3rd compensation temperature is positive number.
Air conditioning control method as above, if operation of air conditioner refrigeration mode, described first compensation temperature and described second compensates temperature and is positive number；If operation of air conditioner heating mode, described first compensation temperature and described second compensates temperature and is negative.
Preferably, described first compensates temperature determines with the corresponding relation of indoor detection temperature and described real-time indoor detection temperature according to known first compensation temperature, described second compensation temperature compensates temperature according to known second and determines with the corresponding relation of indoor detection temperature and described real-time indoor detection temperature, and the described first corresponding relation compensating temperature and the corresponding relation of indoor detection temperature and described second compensation temperature and indoor detection temperature is negative correlativing relation.
It is furthermore preferred that the absolute value of the described first absolute value and described second compensation temperature compensating temperature is respectively less than 2 DEG C.
Air conditioning control method as above, the described 3rd compensates temperature uses following method to determine:
The real time execution time of compressor after the real time execution frequency of acquisition compressor and air-conditioning start, compensate temperature according to the known 3rd and determine the described threeth compensation temperature corresponding with described real time execution frequency and described real time execution time with the corresponding relation of press running frequency and press operation time；In described 3rd corresponding relation compensating temperature and press running frequency and press operation time, the 3rd compensation temperature and press running frequency are negative correlativing relation, and the 3rd compensation temperature is also negative correlativing relation with the press operation time.
Air conditioning control method as above, the rate of change of described real-time indoor detection temperature uses following method to calculate:
Obtain indoor detection of the upper cycle temperature gathered within a upper sampling period in the sampling period residing for described real-time indoor detection temperature, according to the rate of change of the described real-time indoor detection temperature of following formula calculating: the rate of change of the most indoor detection temperature=(indoor detection temperature-indoor detection of upper cycle temperature in real time)/sampling period.
Compared with prior art, advantages of the present invention and good effect are:
When air-conditioning is controlled by the method using the present invention, all indoor detection temperature is compensated during whole compressor operating, and according to the size of the rate of change of indoor detection temperature and select different compensation temperature from the size of target setting temperature, and use the temperature after compensation as the indoor environment temperature of press frequency PID arithmetic.Thus, by rationally selecting compensation temperature, rational compressor frequency control all can be carried out when indoor temperature is in different, make when indoor environment temperature pace of change very fast or bigger with target setting temperature difference time can control compressor and operate with upper frequency so that indoor temperature is quickly close to indoor objects temperature；And when indoor environment temperature pace of change slowly or less with target setting temperature difference time can control compressor and operate with lower frequency, make the actual temperature in user's main activity space closer to target setting temperature, energy consumption of compressor can also be reduced, it is achieved energy saving while improving indoor temperature comfortableness.
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 air conditioning control method 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 air conditioning control method of the present invention.
As it is shown in figure 1, the method that this embodiment realizes airconditioning control comprises the steps:
Step 11: operation of air conditioner, constantly obtains the most indoor detection temperature in room, air-conditioning place according to the setting sampling period.
For wall-hanging air conditioner, general, the air inlet at air-conditioning is provided with temperature sensor, and this temperature sensor can constantly export the temperature of air inlet according to setting the sampling period, and this temperature reflects the temperature of air inlet.Controller on air-conditioning master control borad is connected with temperature sensor, it is possible to get the temperature signal that temperature sensor is detected, and using this temperature as the most indoor detection temperature.And, controller is by the indoor detection temperature in the record at least two sampling period, in order to carry out the calculating of rate of temperature change.
Step 12: calculate the rate of change of the most indoor detection temperature.
The rate of change of the most indoor detection temperature preferably but not limited to uses following method to calculate:
Obtain indoor detection of the upper cycle temperature gathered within a upper sampling period in the sampling period residing for the most indoor detection temperature, according to the rate of change of the most indoor detection temperature of following formula calculating:
The rate of change of the most indoor detection temperature=(the most indoor detection temperature-indoor detection of upper cycle temperature)/sampling period.
For example, the sampling period of temperature sensor is t, and the real-time sampling cycle was the n-th cycle, and the most indoor corresponding detection temperature is Tn；So, a upper sampling period is (n-1) individual cycle, and corresponding indoor detection of upper cycle temperature is T(n-1).So, rate of change=[Tn-T (n-1)]/t of the most indoor detection temperature.
Step 13: select different compensation temperature from the magnitude relationship setting rate of change threshold value and the most indoor detection temperature with the magnitude relationship of target setting temperature according to the absolute value of the rate of change of the most indoor detection temperature, according to compensating temperature, the most indoor detection temperature is compensated, form real-time indoor environment temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between real-time indoor environment temperature and target setting temperature.
Wherein, setting rate of change threshold value is the numerical value prestoring, can calling at any time, is before air-conditioning dispatches from the factory, is obtained by air-conditioning research staff by special experiment condition and the test of special test means and be written to the numerical value in the memorizer of air-conditioning master control borad.This value can be fixed value, it is also possible to be variable value.
Compensating temperature is also the temperature value prestoring, can obtaining at any time and call, and before air-conditioning dispatches from the factory, is obtained by air-conditioning research staff by special experiment condition and the test of special test means and is written in the memorizer of air-conditioning master control borad.And, it is multiple for compensating temperature, and the most not only storage has concrete compensation temperature value, also storage to have certain to compensate the specifically chosen condition of temperature value.Specifically compensate temperature value, alternative condition and selection mode and refer to description below.
The size of the rate of change of the most indoor detection temperature reflects the situation of indoor detection variations in temperature speed, and the absolute value of rate of change is the biggest, shows that indoor detection variations in temperature is the fastest；Whereas if the absolute value of rate of change is the least, show that indoor detection variations in temperature is the least.
Such as, rate of change is positive number, and absolute value is relatively big, shows that now indoor detection temperature is at rapid increase.Indoor detection temperature is at rapid increase, and corresponding air-conditioning uses sight to be probably: winter makes outdoor ambient temperature is relatively low, and indoor environment temperature is the lowest；During user goes back home, close the doors and windows, open air-conditioning, run heating mode；Under the effect that heats of air-conditioning, indoor environment temperature quickly raises.It is also possible to use sight be: summer, operation of air conditioner refrigeration mode, indoor detection temperature has had arrived at than relatively low temperature along with the long-time refrigerating operaton of air-conditioning；But at a time, make indoor temperature steeply rise for a certain reason.In this case, for making indoor temperature fast approaching target setting temperature, it is desirable to air-conditioning operates in a high frequency, quickly to improve the comfortableness of indoor temperature.
And rate of change is negative, and absolute value is relatively big, shows that now indoor detection temperature drops at the fast speed.Indoor detection temperature rapid decrease, corresponding air-conditioning uses sight to be probably: in summer, under the baking of the sun, indoor environment temperature has reached certain value；During user goes back home, close the doors and windows, open air-conditioning, run refrigeration mode；Under the refrigeration of air-conditioning, indoor environment temperature quickly reduces.It is also possible to use sight be: winter, operation of air conditioner heating mode, indoor detection temperature has had arrived at the highest temperature along with the long-time refrigerating operaton of air-conditioning；But at a time, for a certain reason, such as door and window fully open, cold air is come in so that indoor temperature drastically declines.In this case, for making indoor temperature fast approaching target setting temperature, it is desirable to air-conditioning operates in a high frequency, quickly to improve the comfortableness of indoor temperature.
If rate of change absolute value is less, show that now indoor detection variations in temperature is little.Indoor detection variations in temperature is little, and corresponding air-conditioning uses sight to be probably: after opening operation of air conditioner refrigeration mode summer, through operation after a while, indoor temperature is already close to target setting temperature；Or, after opening operation of air conditioner heating mode winter, through operation after a while, indoor temperature is close to target setting temperature.For this situation, for avoiding the occurrence of temperature overshoot, simultaneously from Energy Angle, the operating of air-conditioning low frequency can be controlled.It is also possible to use sight be: the public territory that, air flow property poor in closure is big, although air-conditioner continuous refrigeration or heating operation, but owing to seal is inadequate, indoor detection temperature does not has the most down or up, and the temperature difference between target setting temperature is the biggest.For this situation, for improving the comfortableness of indoor temperature, it is desirable to air-conditioning operates in a high frequency.
Additionally, owing to wall-hanging air conditioner installation site in room is of a relatively high, the indoor detection temperature that the temperature sensor of its air inlet is detected there is also certain temperature difference with indoor actual environment temperature, concrete reason and show themselves in that for wall-hanging air conditioner, in room, installation site is of a relatively high, is the most all arranged on the position on about 2 meters of ground of distance.Thus, the air themperature that the temperature sensor that air-conditioning air inlet is arranged is detected is the temperature of the air at the height of about 2 meters of ground of distance.And in room, user's main activity Spatial General 6 R is the area of space from ground to about 1.35 meters of ground of distance.According to the theory of molecular motion, hot-air moves upward, and cold air moves downward.So, when operation of air conditioner heating mode, owing to hot-air rises, therefore, the temperature of upper air is than the temperature drift of lower air；And when operation of air conditioner refrigeration mode, owing to cold air sinks, the temperature of upper air is also than the temperature drift of lower air.Thus, the indoor detection temperature drift detected by indoor temperature transmitter is in the temperature in user's main activity space, that is, indoor detection temperature is higher than average indoor environment temperature.Therefore, if the temperature controlled as PID using indoor detection temperature, control not accurate enough.
The different air-conditionings that the size of rate of change based on above-mentioned indoor detection temperature and the most indoor detection temperature are reflected from the magnitude relationship of target setting temperature use scene, and use under scene the demand to airconditioning control in difference, simultaneously, it is additionally contemplates that the difference of the indoor detection temperature acquired in wall-hanging air conditioner and indoor actual environment temperature, to select different compensation temperature that the most indoor detection temperature is compensated for different situations, form real-time indoor environment temperature, then, PID arithmetic is carried out according to the temperature difference between real-time indoor environment temperature and the target setting temperature after compensating, obtain compressor target frequency and control the compressor of air-conditioning.Thus, by rationally selecting compensation temperature, rational compressor frequency control all can be carried out when indoor temperature is in different, make when indoor environment temperature pace of change very fast or bigger with target setting temperature difference time can control compressor and operate with upper frequency so that indoor temperature is quickly close to indoor objects temperature；And when indoor environment temperature pace of change slowly or less with target setting temperature difference time can control compressor and operate with lower frequency, make the actual temperature in user's main activity space closer to target setting temperature, energy consumption of compressor can also be reduced, it is achieved energy saving while improving indoor temperature comfortableness.
In the above-described embodiments, how to select reasonably to supplement temperature, be the key factor concerning airconditioning control comfortableness and energy saving.
As preferred embodiment, step 13 specifically can use following method choice to compensate temperature and compensate and obtain compressor target frequency:
If the absolute value of the rate of change of the most indoor detection temperature is more than setting rate of change threshold value, select the first compensation temperature, calculate in real time indoor detection temperature and the first temperature compensating temperature and and as the first indoor environment temperature, calculate the temperature difference between the first indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between the first indoor environment temperature and target setting temperature.Wherein, first compensates the selection of temperature, and the temperature difference between the first indoor environment temperature and target setting temperature will be made more than the temperature difference between the most indoor detection temperature and target setting temperature.
If the absolute value of the rate of change of the most indoor detection temperature is not more than sets rate of change threshold value, then judge that whether the temperature difference between the most indoor detection temperature and target setting temperature is more than setting the temperature difference；
If the temperature difference between the most indoor detection temperature and target setting temperature is more than setting the temperature difference, select the second compensation temperature, calculate in real time indoor detection temperature and the second temperature compensating temperature and and as the second indoor environment temperature, calculate the temperature difference between the second indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between the second indoor environment temperature and target setting temperature；Second selection compensating temperature so that the temperature difference between the second indoor environment temperature and target setting temperature is more than the temperature difference between the most indoor detection temperature and target setting temperature；
If the temperature difference between the most indoor detection temperature and target setting temperature no more than sets the temperature difference, calculate described indoor detection temperature and the 3rd and compensate the temperature difference of temperature and as the 3rd indoor environment temperature, calculate the temperature difference between the 3rd indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between the 3rd indoor environment temperature and target setting temperature；3rd compensation temperature is positive number.
Specifically, if air-conditioning real time execution pattern is refrigeration mode, then the first compensation temperature is positive number.This is because, if the absolute value of the rate of change of indoor detection temperature is more than setting rate of change threshold value, and the rate of change of indoor detection temperature is negative, showing that indoor temperature declines under the effect of refrigeration mode, the most indoor detection temperature the most now is higher than target setting temperature.So, use the first compensation temperature that is positive number to be added the first obtained indoor environment temperature with the most indoor detection temperature and be higher than the most indoor detection temperature and target setting temperature, thus increase the value carrying out the temperature difference that PID arithmetic is used, and then higher compressor frequency can be obtained by PID arithmetic, control air-conditioning high frequency to run so that temperature can approach target setting temperature more quickly.
Same, if air-conditioning real time execution pattern is refrigeration mode, if the absolute value of the rate of change of indoor detection temperature is more than setting rate of change threshold value, and the rate of change of indoor detection temperature is just, show that now indoor temperature causes indoor temperature rapid increase in cooling mode, for a certain reason, it is impossible to reach the refrigeration needed for user.Now, indoor environment temperature is compensated by the first compensation temperature by using positive number, it is possible to obtains higher compressor frequency by PID arithmetic, controls air-conditioning high frequency and run so that temperature can approach target setting temperature more quickly.
And if air-conditioning real time execution pattern is heating mode, then the first compensation temperature is negative.Specifically, if air-conditioning is when heating operation, if the absolute value of the rate of change of indoor detection temperature is more than setting rate of change threshold value, and the rate of change of indoor detection temperature is just, showing indoor temperature rapid increase under the effect of heating mode, indoor detection temperature the most now is less than target setting temperature.So, using the first compensation temperature that is negative to be added the first obtained indoor environment temperature with the most indoor detection temperature will be less than in the most indoor detection temperature and target setting temperature, thus increase the value carrying out the temperature difference that PID arithmetic is used, and then higher compressor frequency can be obtained by PID arithmetic, control air-conditioning high frequency to run so that temperature can approach target setting temperature more quickly.
Same, if air-conditioning real time execution pattern is heating mode, if the absolute value of the rate of change of indoor detection temperature is more than setting rate of change threshold value, and the rate of change of indoor detection temperature is negative, show that now indoor temperature causes indoor temperature rapid decrease in a heating mode, for a certain reason, it is impossible to reach the heating effect needed for user.Now, by the first compensation temperature using negative, indoor environment temperature is compensated, increase the value carrying out the temperature difference that PID arithmetic is used, it is possible to obtain higher compressor frequency by PID arithmetic, control air-conditioning high frequency to run so that temperature can approach target setting temperature more quickly.
Compensating temperature for second, compensate temperature with first similar, if air-conditioning real time execution pattern is refrigeration mode, then the second compensation temperature is positive number, if air-conditioning real time execution pattern is heating mode, the second compensation temperature is negative.
For example, if air-conditioning real time execution pattern is refrigeration mode, the absolute value of the rate of change of the most indoor detection temperature is not more than setting rate of change threshold value, shows that indoor detection variations in temperature is little.If the temperature difference between the most indoor detection temperature and target setting temperature now has been more than the setting temperature difference set in advance, show that indoor temperature is the highest, it is difficult near target setting temperature, e.g. in use environment nonocclusive, that mobility is strong.In the case of this, use the second compensation temperature that is positive number to be added the second obtained indoor environment temperature with the most indoor detection temperature and be higher than the most indoor detection temperature and target setting temperature, thus increase the value carrying out the temperature difference that PID arithmetic is used, and then higher compressor frequency can be obtained by PID arithmetic, control air-conditioning high frequency to run so that temperature can be to target setting temperature approaches.Under operation of air conditioner heating mode, second to compensate temperature be that the principle of negative is referred to above description.
And, as preferred embodiment, it is not changeless that the first compensation temperature and second compensates temperature, but changes according to the difference of the most indoor detection temperature.Specifically, first compensates temperature determines with the corresponding relation of indoor detection temperature and the most indoor detection temperature according to known first compensation temperature, second compensates temperature determines with the corresponding relation of indoor detection temperature and real-time indoor detection temperature according to known second compensation temperature, and the first corresponding relation compensating temperature and the corresponding relation of indoor detection temperature and the second compensation temperature and indoor detection temperature is negative correlativing relation.For example, the corresponding relation of the first compensation temperature and indoor detection temperature it is previously stored with in accumulator for air conditioner, one indoor detection temperature correspond to one first and compensates temperature, or, the multiple indoor detection temperature belonging to same temperature scope correspond to one first compensation temperature.And, indoor detection temperature is the highest, and the first corresponding compensation temperature is the lowest, presents the relation of negative correlation.When selecting the first compensation temperature, find from corresponding relation and use as the first real-time compensation temperature with the first compensation temperature corresponding to the most indoor detection temperature.By determining that the first compensation temperature or second compensates temperature by the way of indoor detection temperature is negative correlativing relation in real time, temperature regulation comfortableness and energy-saving and cost-reducing property can be taken into account further.Wherein, the absolute value of the first absolute value and the second compensation temperature compensating temperature is respectively less than 2 DEG C.
Compensate temperature for the 3rd, be that used when the rate of change of the most indoor detection temperature is not more than setting rate of change threshold value and the temperature difference between the most indoor detection temperature and target setting temperature is not more than and sets the temperature difference compensates temperature.In this case, indoor temperature the most relatively target setting temperature, it is necessary to consider the accuracy of indoor temperature regulation.The starting point of control now is the difference of the indoor detection temperature acquired in wall-hanging air conditioner and indoor actual environment temperature.Therefore, in this case, the 3rd compensation temperature that perseverance is positive number is selected to make temperature-compensating.
As previously indicated, when operation of air conditioner refrigeration mode, the temperature that indoor temperature transmitter is detected is higher than the temperature in user's main activity space.If still participating in PID arithmetic according to the temperature of indoor temperature transmitter detection as indoor temperature, indoor temperature difference during PID arithmetic is bigger than normal, the compressor target frequency calculated is higher, controls compressor and runs according to higher target frequency, causes air conditioning energy consumption bigger than normal.And if first the in real time indoor detection temperature of detection is deducted positive the 3 and compensates temperature, it is thus achieved that less than the 3rd indoor environment temperature of the most indoor detection temperature, and the 3rd indoor environment temperature reflects the temperature in user's main activity space more realistically.When utilizing this 3rd indoor environment temperature less than normal to participate in PID arithmetic, it is possible to obtain less compressor target frequency, utilize the target frequency that this is less to control compressor operating, reduce energy consumption.And, owing to the 3rd indoor environment temperature reflects the temperature in user's main activity space more realistically, thus, the indoor temperature after regulation also can be made to be closer to target setting temperature, without the problem of overshoot occurs, while meeting temperature regulation comfortableness, reduce air conditioning energy consumption.
Same, when operation of air conditioner heating mode, the temperature that indoor temperature transmitter is detected is higher than the temperature in user's main activity space.If still participating in PID arithmetic according to the temperature of indoor temperature transmitter detection as indoor temperature, indoor temperature difference during PID arithmetic is less than normal, the compressor target frequency calculated is on the low side, control compressor to run according to target frequency on the low side, make indoor temperature that long-play or can not be needed to can be only achieved indoor objects temperature, indoor temperature regulation comfortableness is poor, and compressor long-play is also unfavorable for reducing energy consumption under a target frequency the lowest.And if first the indoor temperature of detection is deducted positive the 3 and compensates temperature, it is thus achieved that less than the 3rd indoor environment temperature of the most indoor detection temperature, and the 3rd indoor environment temperature reflects the temperature in user's main activity space more realistically.When utilizing this 3rd indoor environment temperature less than normal to participate in PID arithmetic, it is possible to obtain more relatively large compressor target frequency, it is possible to make indoor temperature be rapidly achieved target setting temperature, improve the comfortableness of indoor temperature regulation.It is additionally, since the time shortening reaching target setting temperature, is beneficial to reduce energy consumption.
As preferred implementation, the 3rd compensates temperature uses following method to determine:
The real time execution time of compressor after the real time execution frequency of acquisition compressor and air-conditioning start, compensate temperature according to the known 3rd and determine the threeth compensation temperature corresponding with real time execution frequency and real time execution time with the corresponding relation of press running frequency and press operation time.Wherein, 3rd corresponding relation compensating temperature and press running frequency and press operation time is to be stored in advance in accumulator for air conditioner, and, the 3rd compensation temperature and press running frequency are negative correlativing relation, and the 3rd compensation temperature is also negative correlativing relation with the press operation time.That is, press running frequency is the biggest, the 3rd compensation temperature is the biggest；It is the longest that press runs the time, and the 3rd compensation temperature is the biggest.This is, because press running frequency is the biggest, and or/and the press operation time is the longest, the most indoor detection temperature is the biggest with the temperature difference in user's main activity space, also the biggest accordingly, as the 3rd compensation temperature compensating temperature.
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 (7)
1. an air conditioning control method, described air-conditioning is wall-hanging air conditioner, it is characterised in that described method includes:
Operation of air conditioner, constantly obtains the most indoor detection temperature in room, air-conditioning place according to the setting sampling period；
Calculate the rate of change of the most indoor detection temperature；
The absolute value of the rate of change according to described real-time indoor detection temperature selects different compensation temperature from the magnitude relationship setting rate of change threshold value and described real-time indoor detection temperature with the magnitude relationship of target setting temperature, according to described compensation temperature, described real-time indoor detection temperature is compensated, form real-time indoor environment temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described real-time indoor environment temperature and described target setting temperature.
Air conditioning control method the most according to claim 1, it is characterized in that, the absolute value of the rate of change according to described real-time indoor detection temperature selects different compensation temperature from the magnitude relationship setting rate of change threshold value and described real-time indoor detection temperature with the magnitude relationship of target setting temperature, according to described compensation temperature, described indoor detection temperature is compensated, form real-time indoor environment temperature, PID arithmetic is carried out according to the temperature difference between described real-time indoor environment temperature and described target setting temperature, obtain compressor target frequency and control the compressor of air-conditioning, particularly as follows:
If the absolute value of the rate of change of described real-time indoor detection temperature is more than setting rate of change threshold value, select the first compensation temperature, calculate described real-time indoor detection temperature and the described first temperature compensating temperature and and as the first indoor environment temperature, calculate the temperature difference between described first indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described first indoor environment temperature and target setting temperature；Described first selection compensating temperature so that the temperature difference between described first indoor environment temperature and described target setting temperature is more than the temperature difference between described real-time indoor detection temperature and described target setting temperature；
If the absolute value of the rate of change of described real-time indoor detection temperature is not more than described setting rate of change threshold value, it is judged that whether the temperature difference between described real-time indoor detection temperature and described target setting temperature is more than setting the temperature difference；
If the temperature difference between described real-time indoor detection temperature and described target setting temperature is more than the described setting temperature difference, select the second compensation temperature, calculate described real-time indoor detection temperature and the described second temperature compensating temperature and and as the second indoor environment temperature, calculate the temperature difference between described second indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described second indoor environment temperature and target setting temperature；Described second selection compensating temperature so that the temperature difference between described second indoor environment temperature and described target setting temperature is more than the temperature difference between described real-time indoor detection temperature and described target setting temperature；
If the temperature difference between described real-time indoor detection temperature and described target setting temperature is not more than the described setting temperature difference, calculate described real-time indoor detection temperature and the 3rd and compensate the temperature difference of temperature and as the 3rd indoor environment temperature, calculate the temperature difference between described 3rd indoor environment temperature and target setting temperature, PID arithmetic is carried out, it is thus achieved that compressor target frequency also controls the compressor of air-conditioning according to the temperature difference between described 3rd indoor environment temperature and target setting temperature；Described 3rd compensation temperature is positive number.
Air conditioning control method the most according to claim 2, it is characterised in that if operation of air conditioner refrigeration mode, described first compensation temperature and described second compensates temperature and is positive number；If operation of air conditioner heating mode, described first compensation temperature and described second compensates temperature and is negative.
Air conditioning control method the most according to claim 3, it is characterized in that, described first compensates temperature determines with the corresponding relation of indoor detection temperature and described real-time indoor detection temperature according to known first compensation temperature, described second compensation temperature compensates temperature according to known second and determines with the corresponding relation of indoor detection temperature and described real-time indoor detection temperature, and the described first corresponding relation compensating temperature and the corresponding relation of indoor detection temperature and described second compensation temperature and indoor detection temperature is negative correlativing relation.
Air conditioning control method the most according to claim 4, it is characterised in that the absolute value of the described first absolute value and described second compensation temperature compensating temperature is respectively less than 2 DEG C.
Air conditioning control method the most according to claim 2, it is characterised in that the described 3rd compensates temperature uses following method to determine:
The real time execution time of compressor after the real time execution frequency of acquisition compressor and air-conditioning start, compensate temperature according to the known 3rd and determine the described threeth compensation temperature corresponding with described real time execution frequency and described real time execution time with the corresponding relation of press running frequency and press operation time；In described 3rd corresponding relation compensating temperature and press running frequency and press operation time, the 3rd compensation temperature and press running frequency are negative correlativing relation, and the 3rd compensation temperature is also negative correlativing relation with the press operation time.
Air conditioning control method the most according to any one of claim 1 to 6, it is characterised in that the rate of change of described real-time indoor detection temperature uses following method to calculate:
Obtain indoor detection of the upper cycle temperature gathered within a upper sampling period in the sampling period residing for described real-time indoor detection temperature, according to the rate of change of the described real-time indoor detection temperature of following formula calculating: the rate of change of the most indoor detection temperature=(indoor detection temperature-indoor detection of upper cycle temperature in real time)/sampling period.
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