CN105180358A - Method for controlling variable frequency air conditioner - Google Patents
Method for controlling variable frequency air conditioner Download PDFInfo
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- CN105180358A CN105180358A CN201510546144.1A CN201510546144A CN105180358A CN 105180358 A CN105180358 A CN 105180358A CN 201510546144 A CN201510546144 A CN 201510546144A CN 105180358 A CN105180358 A CN 105180358A
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Abstract
The invention discloses a method for controlling a variable frequency air conditioner. The method comprises the steps that when a received air conditioner control command is a refrigeration energy-saving comfort command, and a current indoor temperature is not lower than a preset indoor environment temperature threshold value, the variable frequency air conditioner is controlled to operate according to an original variable frequency control mode; or else, a compressor target frequency calculated according to the original variable frequency control mode is acquired, and is judged to be smaller than a first preset compressor frequency or not; if yes, a compressor is controlled to operate with the first preset compressor frequency, and an outdoor fan is controlled to operate with preset rotation speed; and if not, the compressor and the outdoor fan are controlled to operate according to the original variable frequency control mode. In the original variable frequency control mode, whether to compensate the indoor temperature or not is decided according to the operation time of the compressor. By adopting the method disclosed by the invention, comfort of indoor temperature adjustment of the air conditioner and the low-power consumption energy-saving performance of the air conditioner are both considered; and the energy-saving performance and refrigeration comfort of the variable frequency air conditioner are improved.
Description
Technical field
The invention belongs to air-conditioning technique field, specifically, relate to transducer air conditioning, more particularly, relate to the method controlling transducer air conditioning.
Background technology
In hot summer, utilize convertible frequency air-conditioner can freeze to room air, for user builds a nice and cool environment.But convertible frequency air-conditioner power consumption is very large, often becomes the power consumption electrical equipment that family is main.
In order to reduce the power consumption of convertible frequency air-conditioner, there is a kind of control method for frequency conversion air conditioner in prior art, by detecting outdoor environment temperature, from the some compressor operating frequencies preset, select the preset compressor running frequency corresponding with outdoor environment temperature, utilize preset compressor running frequency to control convertible frequency air-conditioner.Outdoor environment temperature is lower, and corresponding preset compressor frequency is also lower.
Above-mentioned control method using outdoor environment temperature as control according to parameter, do not consider the impact of user place indoor environment temperature, thus cannot carry out regulating fast, accurately according to indoor environment temperature, be difficult to ensure convertible frequency air-conditioner to the adjustment of indoor environment temperature, and then affect indoor user to indoor environment temperature comfortableness requirement.And preset compressor running frequency is directly proportional to outdoor environment temperature, if outdoor environment temperature is low to moderate certain value, preset compressor running frequency also can be very low.When compressor operating frequency is low to moderate certain numerical value, can not play any refrigeration, now, although power consumption is low, pure power consumption, do not play the running of refrigeration, Energy Efficiency Ratio is extremely low, and energy-saving effect is poor.
In addition, to indoor temperature regulate comfortableness and energy saving be evaluate two important indicators of household air-conditioner quality at present.If indoor temperature to be adjusted to the overlong time of design temperature, user cannot place oneself in the midst of the environment with suitable design temperature fast, causes the comfortableness of user's using air-condition device to decline.Because the power consumption of current air-conditioner in various household electrical appliance tops the list, air-conditioner energy consumption is high, and electrical network power consumption is serious, especially in summer, often causes serious severe power shortage due to the use of air-conditioner.
Thus, the temperature how improving air-conditioner regulates comfortableness and reduces the power consumption of air-conditioner, is the focus and emphasis of air-conditioner industry research always.
Summary of the invention
The object of this invention is to provide a kind of method controlling transducer air conditioning, to take into account the low-power consumption energy saving of thermoregulator comfortableness and air-conditioner in air conditioner chamber, improve the energy-conservation of convertible frequency air-conditioner and refrigeration comfortableness.
For achieving the above object, the present invention adopts following technical proposals to be achieved:
Control a method for transducer air conditioning, described air-conditioner is wall-hanging air conditioner, it is characterized in that, described method comprises:
When the airconditioning control instruction received is the comfortable instruction of refrigerated energy-saving, perform the comfortable control procedure of following refrigerated energy-saving:
Detect current indoor temperature, and make comparisons with setting indoor environment temperature threshold value;
If described current indoor temperature is not less than described setting indoor environment temperature threshold value, control convertible frequency air-conditioner according to the original VFC mode operation of convertible frequency air-conditioner;
If described current indoor temperature is less than described setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to described original VFC mode computation, judge whether described compressor target frequency is less than the first setting compressor frequency; If so, control described compressor to run with described first setting compressor frequency, control outdoor fan and run with setting speed; If not, described compressor and described outdoor fan is controlled according to described original VFC mode operation;
Described original VFC pattern comprises:
Air-conditioner is started shooting, described compressor operating time reach setting running time after, obtain the current indoor temperature that indoor temperature transmitter detects, as the first indoor temperature, using the difference of described first indoor temperature and setting compensation temperature as the second indoor temperature, calculate the temperature difference between described second indoor temperature and current indoor target temperature, obtain the indoor temperature difference, obtain compressor target frequency according to the described indoor temperature difference, control described compressor according to described compressor target frequency.
Method as above, described setting running time prestores and call, corresponding with described current indoor target temperature and current outdoor temperature running time, and described setting compensation temperature prestores and call, corresponding with described current indoor target temperature and described current outdoor temperature compensation temperature.
Method as above, running time is passed through following method call in described setting:
Described current indoor target temperature and the indoor objects temperature range prestored are made comparisons, judges the indoor objects temperature range belonging to described current indoor target temperature; Described current outdoor temperature and the outdoor temperature scope prestored are made comparisons, judges the outdoor temperature scope belonging to described current outdoor temperature; Corresponding running time set running time as described according to searching in that prestore, corresponding with indoor objects temperature range and outdoor temperature scope multiple running times with the indoor objects temperature range belonging to described current indoor target temperature and the outdoor temperature scope belonging to described current outdoor temperature, and call;
Described setting compensation temperature is by following method call:
Described current indoor target temperature and the indoor objects temperature range prestored are made comparisons, judges the indoor objects temperature range belonging to described current indoor target temperature; Described current outdoor temperature and the outdoor temperature scope prestored are made comparisons, judges the outdoor temperature scope belonging to described current outdoor temperature; According to searching in that prestore, corresponding with indoor objects temperature range and outdoor temperature scope multiple compensation temperatures with the indoor objects temperature range belonging to described current indoor target temperature and the corresponding compensation temperature of the outdoor temperature scope belonging to described current outdoor temperature as described setting compensation temperature, and call.
Method as above, in the comfortable control procedure of described refrigerated energy-saving, if described current indoor temperature is less than described setting indoor environment temperature threshold value, and the actual motion frequency of described compressor is less than the second setting compressor frequency, the aperture controlling the electric expansion valve of convertible frequency air-conditioner is fixed as setting aperture, otherwise, the aperture of electronic valve according to described original VFC Schema control; Described second setting compressor frequency is greater than described first setting compressor frequency.
Method as above, in the comfortable control procedure of described refrigerated energy-saving, if described current indoor temperature is less than described setting indoor environment temperature threshold value, and described compressor has run the first setting-up time with the actual motion frequency being less than described second setting compressor frequency, the actual motion frequency controlling described compressor rises to the 3rd setting compressor frequency and continuous service second setting-up time, then controls compressor with the original frequency operation before frequency rising.
Method as above, when the airconditioning control instruction received is the comfortable instruction of refrigerated energy-saving, the acquiescence airconditioning control parameter of the comfortable control of display refrigerated energy-saving; If the airconditioning control parameter reset do not detected in setting setup times, perform the comfortable control procedure of described refrigerated energy-saving according to described acquiescence airconditioning control parameter; If the airconditioning control parameter reset detected in described setting setup times, perform the comfortable control procedure of described refrigerated energy-saving according to the described airconditioning control parameter reset.
Method as above, the comfortable instruction of described refrigerated energy-saving is sent by the specified button be arranged on convertible frequency air-conditioner control panel or convertible frequency air-conditioner remote controller or convertible frequency air-conditioner control of intelligent terminal.
Compared with prior art, advantage of the present invention and good effect are: when the present invention performs refrigerated energy-saving comfortable control, detect indoor temperature, if indoor temperature is higher, according to original VFC Schema control convertible frequency air-conditioner, indoor environment temperature is declined fast, to reach the temperature of comfortableness; If indoor temperature is close to design temperature during low-frequency operation, the minimum operation frequency of compressor is limited, there is certain refrigerating capacity while realizing low energy consumption, maintain the balance of indoor temperature, avoid fluctuations in indoor temperature large and cause user uncomfortable; Meanwhile, when compressor limit is run frequently, control outdoor fan and run with fixing setting speed, reach the balance of refrigeration system, stablize indoor temperature further, improve the comfortableness of indoor temperature.And, in original VFC pattern, compressor operating time reach setting running time before, the current indoor temperature that indoor temperature transmitter detects is not compensated, compressor operating is controlled according to normal control mode, make indoor temperature close to indoor objects temperature fast, ensure the comfortableness that indoor temperature regulates; Compressor operating time reach setting running time after, setting compensation temperature is utilized to compensate current indoor temperature, using the temperature after compensation as the benchmark indoor temperature obtaining compressor target frequency, reduce benchmark indoor temperature, make benchmark indoor temperature correspond to the actual temperature in user's main activities space closer to indoor; After compensation, when air-conditioner running refrigerating pattern, compressor operating frequency can be reduced, reduce energy consumption of compressor, realize energy saving.
After reading the specific embodiment of the present invention by reference to the accompanying drawings, the other features and advantages of the invention will become clearly.
Accompanying drawing explanation
Fig. 1 is the main flow chart that the present invention controls method first embodiment of transducer air conditioning;
Fig. 2 is the main flow chart that the present invention controls method second embodiment of transducer air conditioning;
Fig. 3 is a particular flow sheet of original VFC pattern in Fig. 1 and Fig. 2.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below with reference to drawings and Examples, the present invention is described in further detail.
Refer to Fig. 1, this figure is depicted as the main flow chart that the present invention controls method first embodiment of transducer air conditioning.
As shown in Figure 1, the flow process of this embodiment to the method that convertible frequency air-conditioner controls comprises the steps:
Step 101: receive airconditioning control instruction.
Step 102: whether the control refrigeration that determining step 101 receives is refrigerated energy-saving comfortable cooling.If NO, step 103 is performed; Otherwise, perform step 104.
User can by the instruction of convertible frequency air-conditioner control panel input airconditioning control, also airconditioning control instruction can be inputted by convertible frequency air-conditioner remote controller, can also by convertible frequency air-conditioner control of intelligent terminal, as being provided with the smart mobile phone input airconditioning control instruction of convertible frequency air-conditioner control APP.No matter adopt which kind of command input device, be provided with the specified button that refrigerated energy-saving comfortable cooling is special all on the input.User presses this button, just can trigger convertible frequency air-conditioner and enter refrigerated energy-saving comfortable running mode, realizes the not only energy-conservation but also refrigeration control that temperature adjustment is comfortable.Thus, user is facilitated whether to perform refrigerated energy-saving comfort mode from main separation.If convertible frequency air-conditioner has received and controlled button and press, and judges it is that button corresponding to refrigerated energy-saving comfortable cooling is pressed, represent that user have input the comfortable instruction of refrigerated energy-saving, then entered the comfortable instruction of refrigerated energy-saving that step 104 starts.
Step 103: if step 102 judges that received airconditioning control instruction is not the comfortable instruction of refrigerated energy-saving, then according to original VFC Schema control convertible frequency air-conditioner.Then, go to step 101, keep and receive airconditioning control instruction and judge.
Original VFC pattern refers to the control model that convertible frequency air-conditioner has before setting up refrigerated energy-saving comfort mode.Original VFC pattern not only comprises the process according to FREQUENCY CONTROL compressor operating, also comprises the aperture running, control according to the degree of superheat electric expansion valve according to user's wind speed setting control room inner blower and outdoor fan, etc.And, preferably adopt Fig. 3 flow process to realize to the process that compressor frequency controls in original VFC pattern, refer to the follow-up description to Fig. 3.
Step 104: if step 102 judges that received airconditioning control instruction is the comfortable instruction of refrigerated energy-saving, enter the comfortable control model of refrigerated energy-saving.First, detect current indoor temperature, make comparisons with setting indoor environment temperature threshold value.
Setting indoor environment temperature threshold value has been written in the memory of air-conditioner controller when convertible frequency air-conditioner dispatches from the factory.General, this setting indoor environment temperature threshold value is not modifiable for user, because user is difficult to implication and the function of knowing this threshold value, if revised arbitrarily by user, can increase energy consumption on the contrary, reduce refrigeration comfortableness.This threshold value can by personnel or other professionals carry out numerical value amendment by operations such as the upgradings to air-conditioner controller after sale.And, this setting indoor environment temperature threshold value be most of human body sense comparatively comfortable, a too hot temperature value can not be felt, be such as set as 28 DEG C.Current indoor temperature refers to a real time temperature of environment space current time residing for convertible frequency air-conditioner, can be detected by the temperature sensor being arranged on air-conditioning air inlet.Enter the comfortable control model of refrigerated energy-saving, detect current indoor temperature, and do comparing of size with setting indoor environment temperature threshold value.
Step 105: judge whether current indoor temperature is less than setting indoor environment temperature threshold value.If so, step 106 is performed; Otherwise, perform step 103.
If current indoor temperature is not less than setting indoor environment temperature threshold value, shows that indoor environment temperature is higher, then perform step 103, according to original VFC Schema control convertible frequency air-conditioner, can decline fast to make indoor temperature.And, in the process according to original VFC Schema control convertible frequency air-conditioner, go to step 104, continue to detect current indoor temperature, and make comparisons with setting indoor environment temperature threshold value.
Step 106: if current indoor environment temperature is less than setting indoor environment temperature threshold value, shows that indoor environment temperature is low, may be close to design temperature.And when close to design temperature, compressor will low-frequency operation.Now, the compressor target frequency gone out according to original VFC mode computation is obtained.
Step 107: whether the compressor target frequency that determining step 106 obtains is less than the first setting compressor frequency.If so, step 108 is performed; If not, show that user's design temperature is lower, current indoor temperature, still higher than user's design temperature, needs to lower the temperature further, thus, goes to step 103, according to original VFC Schema control convertible frequency air-conditioner, can decline fast to make indoor temperature.And, in the process according to original VFC Schema control convertible frequency air-conditioner, go to step 104, continue to detect current indoor temperature, and make comparisons with setting indoor environment temperature threshold value.
Step 108: if the compressor target frequency that step 106 obtains is less than the first setting compressor frequency, controls compressor and runs with the first setting compressor frequency, meanwhile, control outdoor fan and run with setting speed.
When the compressor target frequency that Practical Calculation goes out is less than the first setting compressor frequency, controls compressor and carry out low frequency limit frequently, make its compressor low-limit frequency be the first setting compressor frequency, instead of run according to the compressor target frequency that Practical Calculation goes out.
Wherein, first setting compressor frequency is that to dispatch from the factory at convertible frequency air-conditioner be the fixed frequency be written in the memory of air-conditioner controller, and this frequency is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff, it is the reasonable frequency value can taking into account low energy consumption and refrigeration comfortableness.Such as, this first setting compressor frequency is 15Hz.When the compressor target frequency gone out according to original VFC mode computation is lower than 15Hz, show that real-time indoor environment temperature is close to user's design temperature, without the need to more refrigerating capacity.But run according to this frequency lower than 15Hz if control compressor, due to underfrequency, its refrigerating capacity is extremely weak, even can not play any refrigeration.Now, although compressor is low-frequency operation, still consume certain electricity, and its refrigerating capacity is extremely weak, thus causes compressor running to be now almost a pure power consumption and do not have the process of refrigeration, from Energy Efficiency Ratio angle, power consumption is large.Moreover, because compressor output is extremely weak, can not maintain the stable of indoor temperature, make fluctuations in indoor temperature large, temperature affects comfortableness after rising.And temperature rise after, need control compressor again high frequency running lower the temperature, therefore, from whole process of refrigerastion, power consumption is large.
And in this embodiment, when the compressor target frequency that Practical Calculation goes out is less than the first setting compressor frequency, controls compressor and carry out low frequency limit frequently.Compressor runs under this first setting compressor frequency, can produce and maintain the stable refrigerating capacity of indoor temperature, make indoor temperature be stabilized in user's design temperature, improve comfortableness.And because indoor temperature is stablized, compressor again high frequency fortune lengthens cycle turnover.Thus, Energy Efficiency Ratio, in whole process of refrigerastion, compressor power consumption is little, thus reduces the energy consumption of air conditioner refrigerating.
And, in this limit frequently running, control outdoor fan and run with fixing setting speed, instead of according to original VFC mode operation, the balance of whole refrigeration system can be kept when compressor limit frequency, stablize indoor temperature further, improve the comfortableness of indoor temperature.Same, setting speed is that to dispatch from the factory at convertible frequency air-conditioner be the fixed value be written in the memory of air-conditioner controller, and this value is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff.
In the process performing step 108, still continue the detection and the decision process that perform step 104.
In a word, in refrigerating of convertible frequency air conditioner running, the detection of continuous execution step 101, step 102, step 104, step 105 and step 107 and decision process, meeting the control which condition is which condition just enter, just exiting corresponding control when not meeting certain condition.
Refer to Fig. 2, this figure is depicted as the flow chart that the present invention controls method second embodiment of transducer air conditioning.In this embodiment, the compressor of convertible frequency air-conditioner is the compressor of changeable frequency, and the electric expansion valve that to be aperture controlled of the throttle part in the refrigerating of convertible frequency air conditioner circulatory system.
As shown in Figure 2, the flow process of this embodiment to the method that convertible frequency air-conditioner controls comprises the steps:
Step 201: receive airconditioning control instruction.
Step 202: whether the control refrigeration that determining step 201 receives is refrigerated energy-saving comfortable cooling.If NO, step 203 is performed; Otherwise, perform step 204.
Step 203: if step 202 judges that received airconditioning control instruction is not the comfortable instruction of refrigerated energy-saving, then according to original VFC Schema control convertible frequency air-conditioner.Then, go to step 201, keep and receive airconditioning control instruction and judge.
Step 204: if step 202 judges that received airconditioning control instruction is the comfortable instruction of refrigerated energy-saving, enter the comfortable control model of refrigerated energy-saving.First, detect current indoor temperature, make comparisons with setting indoor environment temperature threshold value.
Step 205: judge whether current indoor environment temperature is less than setting indoor environment temperature threshold value.If so, step 206 is performed; Otherwise, perform step 203.
Step 206: if current indoor environment temperature is less than setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to original VFC mode computation.
Step 207: whether the compressor target frequency that determining step 206 obtains is less than the first setting compressor frequency.If so, step 209 is performed; Otherwise, perform step 208.
Step 208: if step 206 judges that compressor target frequency is not less than the first setting compressor frequency, then judge whether compressor target frequency is less than the second setting compressor frequency.If so, step 210 is performed; Otherwise, go to step 203, still continue the detection and the decision process that perform step 204.
Step 209: if the compressor target frequency that step 206 obtains is less than the first setting compressor frequency, controls compressor and runs with the first setting compressor frequency, meanwhile, control outdoor fan and run with setting speed.Then, step 210 is performed.
The specific implementation process of above-mentioned steps 201 to step 207 and step 209, principle and object are similar with the corresponding step of Fig. 1 embodiment, and no longer specifically set forth, details can with reference to the description of figure 1.
By step 209, add step 208 with Fig. 1 embodiment unlike, this Fig. 2 embodiment and compressor target frequency and second are set the process that compressor frequency makes comparisons.Wherein, the second setting compressor frequency is larger than the first setting compressor frequency, and such as, the first setting compressor frequency is 15Hz, then the second setting compressor frequency is 20Hz.And, to set compressor frequency similar with first, this the second setting compressor frequency is also that to dispatch from the factory at convertible frequency air-conditioner be the fixed frequency be written in the memory of air-conditioner controller, and this frequency is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff, it is the reasonable frequency value can taking into account low energy consumption and refrigeration comfortableness.
Step 210: this step is transferred by step 208 and step 209, also be, as long as step 206 is less than the second setting compressor frequency according to the compressor target frequency that original VFC mode computation goes out, then control the aperture of the electric expansion valve of convertible frequency air-conditioner for setting aperture.
Wherein, setting aperture is that to dispatch from the factory at convertible frequency air-conditioner be the fixed value be written in the memory of air-conditioner controller, and this value is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff.Such as, first setting compressor frequency be 15Hz, second setting compressor frequency be 20Hz time, setting aperture be 100 steps.When the compressor target frequency gone out according to original VFC mode computation is less than the second setting compressor frequency, no longer control according to the aperture of original VFC pattern to electric expansion valve, but the aperture controlling electric expansion valve is fixed.And, when compressor frequency is less than the second setting compressor frequency, this setting aperture is less than the aperture calculated according to original VFC pattern, because original control mode is the degree of superheat adjust valve, more desirably can not realize refrigeration by control valve aperture at low frequency.And this embodiment controls electric expansion valve for fixing aperture when compressor low-frequency operation, suitable refrigerating capacity can be obtained and make air conditioning exhausting proper temperature.
Step 211: judge compressor runs whether arrive the first setting-up time with the actual motion frequency being less than the second setting compressor frequency.If so, step 212 is performed; Otherwise, continue timing, until arrive the first setting-up time.
Step 212: if compressor runs arrival first setting-up time with the actual motion frequency being less than the second setting compressor frequency, the actual motion frequency controlling compressor rises to the 3rd setting compressor frequency, and continuous service second setting-up time.
Step 213: when compressor runs arrival the second setting-up time according to the 3rd setting compressor frequency, then return to the operation of the reason frequency before rising.
The object performing above-mentioned steps 211 to step 213 is to carry out protecting control to the running of compressor low frequency and continuous, avoiding the long-time low-frequency operation of compressor and damage compressor.Wherein, first setting-up time, the second setting-up time and the 3rd setting compressor frequency are all that to dispatch from the factory at convertible frequency air-conditioner be the fixed value be written in the memory of air-conditioner controller, and this value is the value obtained through theoretical research and a large amount of comprehensive experiment by research staff.Such as, the first setting-up time is 30min, and the second setting-up time is 10s, and the 3rd setting compressor frequency is 30Hz.After compressor is with the 30min that operates continuously lower than the actual motion frequency of the second setting compressor frequency 20Hz, the running frequency of enforce compression machine rises to 30Hz, and continuous service 10s.Then return to the original frequency before rising then.
In the process performing above-mentioned compressor limit frequency and low-frequency operation protection, still continue the detection and the decision process that perform step 204.
Certainly, in refrigerating of convertible frequency air conditioner running, still constantly can perform detection and the decision process of step 201, step 202, step 204, step 205, step 207 and step 208, meeting the control which condition is which condition just enter, just exiting corresponding control when not meeting certain condition.
No matter be Fig. 1 embodiment or Fig. 2 embodiment, when entering the comfortable control procedure of refrigerated energy-saving, control similar with existing convertible frequency air-conditioner, need to pre-set airconditioning control parameter, as user's design temperature, wind speed setting, air supply direction etc., the comfortable control procedure of refrigerated energy-saving will control according to these airconditioning control Parameters on Compressive machine, indoor fan, outdoor fan, wind deflector etc., meet consumers' demand.As an optimal control process, for a concrete convertible frequency air-conditioner, there is mating of a best controling parameters and control performance in the comfortable control of refrigerated energy-saving.In order to provide Optimal Control performance, before air-conditioning dispatches from the factory, the optimization control parameter realizing optimum control performance of this air-conditioning is prefixed in it stores, this optimization control parameter is airconditioning control parameter by default, at user's using air-condition and when have selected the comfortable control model of refrigerated energy-saving, Air-Conditioning Control Panel or air cnoditioner remote controller display screen demonstrate acquiescence airconditioning control parameter, understands best controling parameters for user and control benchmark.
But for meeting the individual demand of user, acquiescence airconditioning control parameter is not modifiable, and user using the default control parameters of display as with reference to benchmark, can reset controling parameters according to self-demand.
Now, after receiving airconditioning control refrigeration and be refrigerated energy-saving comfortable cooling and showing acquiescence airconditioning control parameter, if the airconditioning control parameter reset detected in setting setup times, then perform the comfortable control procedure of refrigerated energy-saving according to the airconditioning control parameter reset.And if in setting setup times, the airconditioning control parameter reset do not detected, then will perform refrigerated energy-saving comfortable control procedure according to airconditioning control parameter of submerging.
Refer to Fig. 3, this figure is depicted as original VFC pattern particular flow sheet in Fig. 1 and Fig. 2.Specifically, be flow chart indoor temperature being compensated to rear acquisition compressor target frequency.
For wall-hanging air conditioner, in room, installation site is relatively high, is generally all arranged on the position on distance about 2 meters, ground.Indoor temperature transmitter air-conditioner being used for detect indoor temperature is generally positioned on air-conditioner air inlet or evaporimeter, and thus, the air themperature that indoor temperature transmitter detects is the temperature of the air of about the 2 meters At The Heights in distance ground.And in room, user's main activities Spatial General 6 R is the area of space from ground to distance about 1.35 meters, ground.According to the theory of molecular motion, cold air moves downward.So, when air-conditioner running refrigerating pattern, because cold air sinks, the temperature of upper air is also than the temperature drift of lower air.Thus the temperature drift that indoor temperature transmitter detects is in the temperature in user's main activities space.The present invention is based on this phenomenon, this angle of temperature itself is set out indoor, propose a kind of air-conditioner control technology scheme taking into account the low-power consumption energy saving of thermoregulator comfortableness and air-conditioner in air conditioner chamber, and this technical scheme is applied in original VFC pattern.
Specifically, in original VFC pattern, the method flow of the embodiment that wall-hanging transducer air conditioning controls is comprised the steps:
Step 301: air-conditioner is started shooting, controls compressor operating.
Air-conditioner start after, by set according to user or acquiescence operational mode and operational factor, according to predetermined control program control compressor operating.
Step 302: judge whether compressor operating time reaches and set running time.If so, the control of step 304 is performed; If not, the control of step 303 is performed.
Wherein, setting running time is the time value prestoring, can call at any time, is obtained by special experiment condition and the test of special test means and be written to the numerical value in air-conditioner memory before air-conditioner dispatches from the factory, by air-conditioner research staff.
In air-conditioner, be provided with timer, timing can be carried out to the running time of compressor.Air-conditioner start, compressor starts run time, timer starts timing, when timing reach setting running time time, output time signal.In air-conditioner control procedure, whether will reach according to compressor operating time and set running time, perform different control.Specifically, compressor operating time whether reach setting running time be the necessary condition determining whether to compensate indoor temperature.
Step 303: if step 302 judges that compressor operating time does not also reach set running time, conveniently control method controls compressor.
Namely, if compressor is started shooting, rear running time does not also reach and sets running time, then do not perform the process that indoor temperature compensates, but conveniently control method controls compressor yet.Wherein, conventional control methods refers to the control method of existing transducer air conditioning.Such as, the control method of existing air-conditioner is: the temperature difference between indoor temperature and indoor objects temperature is greater than when setting the temperature difference, controls compressor high frequency and runs, until the temperature difference of indoor temperature and indoor objects temperature is not more than the setting temperature difference.So, when compressor operating time does not also reach setting running time, if compressor wants high frequency to run in conventional control methods, then maintenance high frequency running status, make indoor temperature can approach indoor objects temperature fast, rapidly for user provides an indoor environment be comparatively suitable for.
Conveniently control method controls in compressor operating process, still constantly performs and judges whether compressor operating time reaches the process of setting running time.
Step 304: if step 302 judges that compressor operating time reaches set running time, will compensate indoor temperature, then, utilizes the indoor temperature after compensating to obtain compressor target frequency.
Specifically, running time after compressor start obtains the current indoor temperature that indoor temperature transmitter detects, as the first indoor temperature after reaching and setting running time, calculate the difference of the first indoor temperature and setting compensation temperature, as the second indoor temperature.
Wherein, setting compensation temperature is the temperature value prestoring, can call at any time, is also obtained by special experiment condition and the test of special test means and be written to the numerical value in air-conditioner memory before air-conditioner dispatches from the factory, by air-conditioner research staff.When reaching setting running time when the compressor is operating, meet condition indoor temperature being compensated to control, then obtain current indoor temperature detected by indoor temperature transmitter, using this current indoor temperature as the first indoor temperature.Then, obtain setting compensation temperature, calculate the difference of the first indoor temperature and setting compensation temperature, using this difference as the second indoor temperature.Then, step 305 is performed.
Step 305: the temperature difference calculating the second indoor temperature and indoor objects temperature, obtains the indoor temperature difference, obtains compressor target frequency according to the indoor temperature difference, and controls compressor according to compressor target frequency.
Wherein, the process obtaining compressor target frequency according to the indoor temperature difference between indoor temperature and indoor objects temperature is prior art, but, unlike the prior art, the indoor temperature calculating the indoor temperature difference is not the temperature that indoor temperature transmitter detects, but the second indoor temperature obtained after temperature-compensating has been carried out to the temperature detected.
As previously indicated, when air-conditioner running refrigerating pattern, the temperature that indoor temperature transmitter detects is higher than the temperature in user's main activities space.If the temperature still detected according to indoor temperature transmitter obtains compressor target frequency as indoor temperature, such as obtain compressor target frequency by room temperature PID computing, if then participate in PID arithmetic according to the temperature detected as indoor temperature, indoor temperature difference during PID arithmetic is bigger than normal, the compressor target frequency calculated is higher, control compressor to run according to higher target frequency, cause air-conditioner energy consumption bigger than normal.And adopt the method for this embodiment, first the indoor temperature of detection is deducted a compensation temperature, obtain the second indoor temperature being less than the current indoor temperature of detection, and this second indoor temperature reflects the temperature in user's main activities space more realistically.When recycling this second indoor temperature participation PID arithmetic less than normal, can obtain less compressor target frequency, the target frequency utilizing this less controls compressor operating, reduces energy consumption.And, because this second indoor temperature reflects the temperature in user's main activities space more realistically, thus, the indoor temperature after regulating also can be made more close to indoor design temperature, and there will not be the problem of overshoot, while satisfied temperature regulates comfortableness, reduce air-conditioner energy consumption.
And, in whole control procedure, not compressor runs the compensation just performing indoor temperature at the beginning, but first keep compressor conveniently control strategy operation, ensure that indoor temperature can conveniently control mode, rapidly near indoor objects temperature, the speed of indoor temperature comfort conditioning can not be affected.
In the above-described embodiments, when performing the compensatory control of indoor temperature, perform how many temperature-compensatings to indoor temperature, is concern the key factor that air-conditioner controls comfortableness and energy saving.Also namely, setting selecting of running time and setting compensation temperature is key factor wherein.
As preferred embodiment, setting running time of prestore in air-conditioner, calling at any time is a running time corresponding with indoor objects temperature and outdoor temperature, and prestore, the setting compensation temperature called at any time is a compensation temperature corresponding with indoor objects temperature and outdoor temperature.Setting running time and setting compensation temperature is determined based on indoor objects temperature and outdoor temperature, can realize the Reasonable Regulation And Control of function of temperature compensation control on make-up time and degree of compensation based on air-conditioner operating load, reach the equilibrium of Thermal comfort adjustment and low energy consumption energy saving.
And what prestore in air-conditioner is indoor objects temperature range, outdoor temperature scope and the multiple running time corresponding with indoor objects temperature range and outdoor temperature scope and multiple compensation temperature.When performing function of temperature compensation control in air-conditioner running, setting running time and setting compensation temperature are called respectively by following process:
Set running time by following method call: the current indoor target temperature detected by indoor temperature transmitter is made comparisons with the indoor objects temperature range prestored, and judges the indoor objects temperature range belonging to current indoor target temperature; The current outdoor temperature detected by outdoor temperature sensor is made comparisons with the outdoor temperature scope prestored, and judges the outdoor temperature scope belonging to current outdoor temperature; According to searching in that prestore, corresponding with indoor objects temperature range and outdoor temperature scope multiple running times with the indoor objects temperature range belonging to current indoor target temperature and the outdoor temperature scope belonging to current outdoor temperature corresponding running time as setting running time, and call;
Setting compensation temperature is by following method call: current indoor target temperature and the indoor objects temperature range prestored are made comparisons, judge the indoor objects temperature range belonging to current indoor target temperature; Current outdoor temperature and the outdoor temperature scope prestored are made comparisons, judges the outdoor temperature scope belonging to current outdoor temperature; According to searching in that prestore, corresponding with indoor objects temperature range and outdoor temperature scope multiple compensation temperatures with the indoor objects temperature range belonging to current indoor target temperature and the corresponding compensation temperature of the outdoor temperature scope belonging to current outdoor temperature as setting compensation temperature, and call.
Certainly, in working control process, indoor objects temperature range belonging to current indoor target temperature and the outdoor temperature scope belonging to current outdoor temperature only need to judge once, then go to search according to result of determination and call corresponding setting running time and setting compensation temperature, and without the need to judging twice to affiliated scope, foregoing description is only in order to complete description calls the process of setting running time and setting compensation temperature.
The above-mentioned mode with temperature range is determined and is called setting running time and setting compensation temperature, and data processing amount is little, and control procedure is simple, is more conducive to carrying out controlling in time, effectively to air-conditioner, improves the speed that Thermal comfort regulates, and reduces operation energy consumption.
Above embodiment only in order to technical scheme of the present invention to be described, but not is limited; Although with reference to previous embodiment to invention has been detailed description, for the person of ordinary skill of the art, still can modify to the technical scheme described in previous embodiment, or equivalent replacement is carried out to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the present invention's technical scheme required for protection.
Claims (7)
1. control a method for transducer air conditioning, described air-conditioner is wall-hanging air conditioner, it is characterized in that, described method comprises:
When the airconditioning control instruction received is the comfortable instruction of refrigerated energy-saving, perform the comfortable control procedure of following refrigerated energy-saving:
Detect current indoor temperature, and make comparisons with setting indoor environment temperature threshold value;
If described current indoor temperature is not less than described setting indoor environment temperature threshold value, control convertible frequency air-conditioner according to the original VFC mode operation of convertible frequency air-conditioner;
If described current indoor temperature is less than described setting indoor environment temperature threshold value, obtain the compressor target frequency gone out according to described original VFC mode computation, judge whether described compressor target frequency is less than the first setting compressor frequency; If so, control described compressor to run with described first setting compressor frequency, control outdoor fan and run with setting speed; If not, described compressor and described outdoor fan is controlled according to described original VFC mode operation;
Described original VFC pattern comprises:
Air-conditioner is started shooting, described compressor operating time reach setting running time after, obtain the current indoor temperature that indoor temperature transmitter detects, as the first indoor temperature, using the difference of described first indoor temperature and setting compensation temperature as the second indoor temperature, calculate the temperature difference between described second indoor temperature and current indoor target temperature, obtain the indoor temperature difference, obtain compressor target frequency according to the described indoor temperature difference, control described compressor according to described compressor target frequency.
2. method according to claim 1, it is characterized in that, described setting running time prestores and call, corresponding with described current indoor target temperature and current outdoor temperature running time, and described setting compensation temperature prestores and call, corresponding with described current indoor target temperature and described current outdoor temperature compensation temperature.
3. method according to claim 2, is characterized in that, running time is passed through following method call in described setting:
Described current indoor target temperature and the indoor objects temperature range prestored are made comparisons, judges the indoor objects temperature range belonging to described current indoor target temperature; Described current outdoor temperature and the outdoor temperature scope prestored are made comparisons, judges the outdoor temperature scope belonging to described current outdoor temperature; Corresponding running time set running time as described according to searching in that prestore, corresponding with indoor objects temperature range and outdoor temperature scope multiple running times with the indoor objects temperature range belonging to described current indoor target temperature and the outdoor temperature scope belonging to described current outdoor temperature, and call;
Described setting compensation temperature is by following method call:
Described current indoor target temperature and the indoor objects temperature range prestored are made comparisons, judges the indoor objects temperature range belonging to described current indoor target temperature; Described current outdoor temperature and the outdoor temperature scope prestored are made comparisons, judges the outdoor temperature scope belonging to described current outdoor temperature; According to searching in that prestore, corresponding with indoor objects temperature range and outdoor temperature scope multiple compensation temperatures with the indoor objects temperature range belonging to described current indoor target temperature and the corresponding compensation temperature of the outdoor temperature scope belonging to described current outdoor temperature as described setting compensation temperature, and call.
4. according to the method in any one of claims 1 to 3, it is characterized in that, in the comfortable control procedure of described refrigerated energy-saving, if described current indoor temperature is less than described setting indoor environment temperature threshold value, and the actual motion frequency of described compressor is less than the second setting compressor frequency, the aperture controlling the electric expansion valve of convertible frequency air-conditioner is fixed as setting aperture, otherwise, the aperture of electronic valve according to described original VFC Schema control; Described second setting compressor frequency is greater than described first setting compressor frequency.
5. method according to claim 4, it is characterized in that, in the comfortable control procedure of described refrigerated energy-saving, if described current indoor temperature is less than described setting indoor environment temperature threshold value, and described compressor has run the first setting-up time with the actual motion frequency being less than described second setting compressor frequency, the actual motion frequency controlling described compressor rises to the 3rd setting compressor frequency and continuous service second setting-up time, then controls compressor with the original frequency operation before frequency rising.
6. method according to claim 1, is characterized in that, when the airconditioning control instruction received is the comfortable instruction of refrigerated energy-saving, and the acquiescence airconditioning control parameter of the comfortable control of display refrigerated energy-saving; If the airconditioning control parameter reset do not detected in setting setup times, perform the comfortable control procedure of described refrigerated energy-saving according to described acquiescence airconditioning control parameter; If the airconditioning control parameter reset detected in described setting setup times, perform the comfortable control procedure of described refrigerated energy-saving according to the described airconditioning control parameter reset.
7. method according to claim 1, is characterized in that, the comfortable instruction of described refrigerated energy-saving is sent by the specified button be arranged on convertible frequency air-conditioner control panel or convertible frequency air-conditioner remote controller or convertible frequency air-conditioner control of intelligent terminal.
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