CN108895629A - Convertible frequency air-conditioner control method for frequency and air conditioner - Google Patents
Convertible frequency air-conditioner control method for frequency and air conditioner Download PDFInfo
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- CN108895629A CN108895629A CN201810803101.0A CN201810803101A CN108895629A CN 108895629 A CN108895629 A CN 108895629A CN 201810803101 A CN201810803101 A CN 201810803101A CN 108895629 A CN108895629 A CN 108895629A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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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
Abstract
The present invention provides a kind of convertible frequency air-conditioner control method for frequency and air conditioners.The convertible frequency air-conditioner control method for frequency includes：According to the compressor operation information of the ambient temperature information of preset period of time acquisition air conditioner, actual evaporation temperature and air conditioner；When ambient temperature information is no more than assigned temperature threshold value, according to compressor operation information, first object evaporating temperature and the second target evaporating temperature, third target evaporating temperature is determined, it is poor to combine actual evaporation temperature to obtain evaporating temperature；It is poor according to the evaporating temperature obtained, match corresponding target frequency amendment ratio；Ratio is corrected according to the current running frequency of compressor and target frequency, target operating frequency is generated, so that compressor is run according to target operating frequency.The reliability for improving compressor and air conditioner, the compressor frequency for avoiding air conditioner are widely varied in a short time, and then avoid fluctuating widely for room temperature, improve the comfort level of air conditioner, more energy conservation and environmental protection.
Description
Technical field
The present invention relates to frequency conversion technical field, in particular to a kind of convertible frequency air-conditioner control method for frequency and air conditioner.
Background technique
Compressor is the heart of air-conditioning products, and revolving speed directly influences the service efficiency of air-conditioning.Convertible frequency air-conditioner is by borrowing
Frequency converter is helped, temperature control and adjustment compressor rotary speed according to environment are allowed to always in optimal rotary regimes, to mention
High energy efficiency ratio.
In general, although convertible frequency air-conditioner can save many energy consumptions, pressure used by current transducer air conditioning
There are some problems for contracting unit frequency adjustable strategies.For example, in order to meet the needs of fast-refrigerating, no matter ambient temperature is such as
What, has differences between environment temperature and target temperature as long as convertible frequency air-conditioner detects, control compressor enters highest frequency
Fast cooling is realized in operation.However, under some room temperature operating conditions (environment temperature belongs to 18~29 DEG C), due to environment temperature degree
Low, compressor can drop to low frequency operation from high frequency again quickly.It not only will appear temperature fluctuations affect indoor comfort in this way, also
It can be very power-consuming.
Summary of the invention
In view of this, the present invention is directed to propose a kind of convertible frequency air-conditioner control method for frequency, to improve the above problem.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of convertible frequency air-conditioner control method for frequency, is applied to air conditioner, and the convertible frequency air-conditioner control method for frequency includes：It presses
The compression of the corresponding ambient temperature information of the air conditioner, actual evaporation temperature and the air conditioner is obtained according to preset period of time
Machine operation information；When the ambient temperature information is no more than assigned temperature threshold value, according to the compressor operation information, preset
First object evaporating temperature and preset second target evaporating temperature, determine third target evaporating temperature；According to the third
It is poor to obtain evaporating temperature for target evaporating temperature and the actual evaporation temperature；It is poor according to the evaporating temperature obtained, it matches
Target frequency corrects ratio；Ratio is corrected according to the current running frequency of the compressor and the target frequency, generates target
Running frequency, so that the compressor is run according to the target operating frequency.
Further, according to the compressor operation information, preset second target evaporating temperature and preset first mesh
Evaporating temperature is marked, determines that third target evaporating temperature includes：Judge whether the compressor operation information meets preset condition,
In, the compressor operation information includes operation duration, oil return duration and discharge superheat, and the preset condition includes the fortune
Row duration is no more than the first preset duration or the oil return duration is no more than first preset duration；If the compressor operation
Information meets the preset condition, then steams the preset second target evaporating temperature as the third target determined
Send out temperature；If the compressor operation information is unsatisfactory for the preset condition, according to the discharge superheat described first
A third target evaporating temperature, the first object evaporation are determined between target evaporating temperature and the second target evaporating temperature
Temperature is less than the second target evaporating temperature.
Further, described warm in the first object evaporating temperature and the evaporation of the second target according to the discharge superheat
Determine that a third target evaporating temperature includes between degree：The discharge superheat is less than in the second lasting preset duration
When the first temperature value, according to preset on the basis of the corresponding third target evaporating temperature of adjacent upper time cycle
Regulated value is lowered, using as the current time cycle corresponding third target evaporating temperature；Lasting
When the discharge superheat is greater than second temperature value in two preset durations, in the corresponding third of adjacent upper time cycle
It is raised on the basis of target evaporating temperature according to preset regulated value, using as the current time cycle corresponding institute
State third target evaporating temperature；Wherein the second temperature value is greater than first temperature value；In the second lasting preset duration
When the interior discharge superheat is between first temperature value and the second temperature value, by an adjacent upper time cycle
The corresponding third target evaporating temperature is as the current time cycle corresponding third target evaporating temperature.
Further, the mode for obtaining the actual evaporation temperature is：The average temperature of inner disc mean temperature, tubule is obtained respectively
Degree, extra heavy pipe mean temperature and preset refrigeration target evaporating temperature weighting coefficient；It is average according to the inner disc mean temperature, tubule
Temperature, extra heavy pipe mean temperature and preset refrigeration target evaporating temperature weighting coefficient, utilize formula：
TIt is practical=(TInner disc+TExtra heavy pipe+TTubule)/K,
Calculate the corresponding actual evaporation temperature, wherein TIt is practicalRepresent the actual evaporation temperature, TInner discIt represents in described
Disk mean temperature, TExtra heavy pipeRepresent the extra heavy pipe mean temperature, TTubuleRepresent the tubule mean temperature.
Further, be stored in advance in the air conditioner multiple actual evaporation temperature ranges and the frequency amendment ratio it
Between corresponding relationship, the multiple actual evaporation temperature range is adjacent to each other and continuous, the temperature of the actual evaporation temperature range
Angle value is higher, and the corresponding frequency amendment ratio is smaller；It is described poor according to the evaporating temperature obtained, match target frequency
Rate amendment ratio mode include：Search the actual evaporation temperature range with the actual evaporation Temperature Matching；It will search
The corresponding frequency amendment ratio of the actual evaporation temperature range arrived corrects ratio as the target frequency.
Further, the corresponding relationship packet between the multiple actual evaporation temperature range and the frequency amendment ratio
It includes：When the actual evaporation temperature range is less than -8 DEG C, the corresponding frequency amendment ratio is 10%；The actual evaporation
Temperature range is greater than -8 DEG C and when being less than -5 DEG C, and the corresponding frequency amendment ratio is 8%；The actual evaporation humidity province
Between for greater than -5 DEG C and when being less than -3 DEG C, corresponding frequency amendment ratio is 5%；The actual evaporation temperature range is big
In -3 DEG C and when being less than -1 DEG C, the corresponding frequency amendment ratio is 2%；The actual evaporation temperature range is greater than -1 DEG C
And when less than 1 DEG C, the corresponding frequency amendment ratio is 0%；The actual evaporation temperature range is greater than 1 DEG C and less than 3
DEG C when, corresponding frequency amendment ratio is -2%；It is right when the actual evaporation temperature range is greater than 3 DEG C and less than 5 DEG C
The frequency amendment ratio answered is -5%；When the actual evaporation temperature range is greater than 5 DEG C and less than 8 DEG C, corresponding institute
Stating frequency amendment ratio is -8%；When the actual evaporation temperature range is greater than 8 DEG C, the corresponding frequency corrects ratio
It is -10%.
Further, the running frequency current according to the compressor and the target frequency correct ratio, generate
The mode of target operating frequency includes：Obtained adjacent upper time cycle corresponding target operating frequency；According to
Adjacent upper time cycle corresponding target operating frequency, the current running frequency and the time cycle pair
The target frequency amendment ratio answered, utilizes formula：
f1=f2+f3× Δ F,
Calculate the current time cycle corresponding target operating frequency, wherein f1When representing current described
Between the period corresponding target operating frequency, f2Represented adjacent upper time cycle corresponding object run frequency
Rate, f3The running frequency is represented, Δ F represents the target frequency amendment ratio.
Further, the convertible frequency air-conditioner control method for frequency further includes：When the ambient temperature information is more than the finger
When determining temperature threshold, using the difference between the first object evaporating temperature and the actual evaporation temperature as the evaporation temperature
It is poor to spend.
Compared with the existing technology, convertible frequency air-conditioner control method for frequency of the present invention has the advantage that：
Convertible frequency air-conditioner control method for frequency of the present invention is no more than specified temperature by the ambient temperature information in acquisition
When spending threshold value, temperature is evaporated according to the compressor operation information, preset first object evaporating temperature and preset second target
Degree, determines third target evaporating temperature, so that the target evaporating temperature obtained more meets the current actual conditions of air conditioner.Root again
According to the third target evaporating temperature and the actual evaporation temperature, it is poor to obtain evaporating temperature, and then matches corresponding target
Frequency corrects ratio, to correct ratio according to the current running frequency of the compressor and the target frequency, generates target
Running frequency, then control compressor and run according to the target operating frequency.The reliability for improving compressor and air conditioner, keeps away
The compressor frequency for having exempted from air conditioner is widely varied in a short time, and then avoids fluctuating widely for room temperature, mentions
The comfort level of high air conditioner makes air conditioner more energy conservation and environmental protection.
Another object of the present invention is to propose a kind of air conditioner, to improve the above problem.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of air conditioner, the air conditioner include：Acquisition module, for obtaining the air conditioner according to preset period of time
The compressor operation information of corresponding ambient temperature information, actual evaporation temperature and the air conditioner；Determining module, for working as institute
When stating ambient temperature information no more than assigned temperature threshold value, evaporated according to the compressor operation information, preset first object
Temperature and preset second target evaporating temperature, determine third target evaporating temperature；Module is obtained, for according to the third mesh
Evaporating temperature and the actual evaporation temperature are marked, it is poor to obtain evaporating temperature；Matching module, for according to the evaporation temperature obtained
It is poor to spend, and matches target frequency amendment ratio；Frequency adjustment module, for according to the current running frequency of the compressor and institute
Target frequency amendment ratio is stated, target operating frequency is generated, so that the compressor is run according to the target operating frequency.
Further, the determining module is specifically used for：Judge whether the compressor operation information meets preset condition,
Wherein, the compressor operation information includes operation duration, oil return duration and discharge superheat, and the preset condition includes described
Operation duration is no more than the first preset duration or the oil return duration is no more than first preset duration；If the compressor fortune
Row information meets the preset condition, then using the preset second target evaporating temperature as the third target determined
Evaporating temperature；If the compressor operation information is unsatisfactory for the preset condition, according to the discharge superheat described
A third target evaporating temperature is determined between one target evaporating temperature and the second target evaporating temperature, the first object steams
It sends out temperature and is less than the second target evaporating temperature.
Possessed advantage is identical compared with the existing technology with above-mentioned convertible frequency air-conditioner control method for frequency for the air conditioner,
This is repeated no more.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the step flow chart of convertible frequency air-conditioner control method for frequency described in the embodiment of the present invention；
Fig. 2 is the sub-step flow chart of step S103；
Fig. 3 is the sub-step flow chart of step S106；
Fig. 4 is the functional block diagram of air conditioner described in the embodiment of the present invention.
Description of symbols：
1- air conditioner, 2- acquisition module, 3- determining module, 4- obtain module, 5- matching module, 6- frequency adjustment module.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In addition, the compressor operation information being previously mentioned in an embodiment of the present invention is adopted after referring to compressor start work
What is collected characterizes the data of its working condition.Optionally, compressor operation information can be with, but to be not limited to include operation duration, is returned
Oily duration and discharge superheat.The actual evaporation temperature being previously mentioned in an embodiment of the present invention, refers in current time period
The temperature information of evaporator.Optionally, the inner disc mean temperature being previously mentioned in an embodiment of the present invention refers to and is arranged in inner disc
The collected temperature value of multiple temperature collecting cells between average value.The tubule being previously mentioned in an embodiment of the present invention,
Refer to the liquid pipe of air conditioner, or the high-voltage tube that is otherwise known as.The tubule mean temperature being previously mentioned in an embodiment of the present invention is
Refer to the average value between the collected temperature value of multiple temperature collecting cells being arranged on the tubule of evaporator.Of the invention
The extra heavy pipe being previously mentioned in embodiment refers to the tracheae of air conditioner or the low-voltage tube that is otherwise known as.Institute in an embodiment of the present invention
The extra heavy pipe mean temperature mentioned, refer to the collected temperature value of multiple temperature collecting cells that is arranged on the extra heavy pipe of evaporator it
Between average value.The target operating frequency being previously mentioned in an embodiment of the present invention refers to and calculates in the current time cycle
The preferable running frequency of inner compressor.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
First embodiment
Referring to FIG. 1, the embodiment of the invention provides a kind of convertible frequency air-conditioner control method for frequency.Above-mentioned convertible frequency air-conditioner frequency
Control method can be applied to air conditioner 1, for example, transducer air conditioning 1.As shown in Figure 1, the convertible frequency air-conditioner control method for frequency can be with
Include the following steps：
Step S101 obtains the corresponding ambient temperature information of the air conditioner 1, actual evaporation temperature according to preset period of time
The compressor operation information of degree and the air conditioner 1.
In embodiments of the present invention, it is acquired respectively using pre-set temperature collecting cell within each time cycle
The corresponding ambient temperature information of air conditioner 1, multiple inner disc temperature, multiple capillary temperatures and multiple extra heavy pipe temperature.Above-mentioned temperature is adopted
Collection unit can be temperature sensor, specifically, can acquire air-conditioning by being installed on the temperature sensor of 1 outdoor unit of air conditioner
The ambient temperature information for the environment that device 1 is presently in.Temperature sensor by being installed on inner disc acquires multiple inner disc temperature respectively
Degree, it should be noted that multiple temperature sensors can be set on inner disc, each temperature sensor acquires an inner disc temperature,
Ensure the precision acquired.Temperature sensor by being installed on the tubule of evaporator acquires multiple capillary temperatures respectively, needs
It is bright, multiple temperature sensors can be set on the tubule of evaporator, each temperature sensor acquires a capillary temperature, with
Ensure the precision acquired.Temperature sensor by being installed on the extra heavy pipe of evaporator acquires multiple extra heavy pipe temperature respectively, needs
It is bright, multiple temperature sensors can be set on the extra heavy pipe of evaporator, each temperature sensor acquires an extra heavy pipe temperature, with
Ensure the precision acquired.The cycle length of above-mentioned time cycle is preferably 30s.
Further, actual evaporation temperature can be according to collected multiple inner disc temperature, multiple capillary temperatures and multiple
Extra heavy pipe temperature calculates actual evaporation temperature.Optionally, according to multiple inner disc temperature, multiple capillary temperatures and multiple extra heavy pipe temperature
Inner disc mean temperature, tubule mean temperature and extra heavy pipe mean temperature are obtained respectively.For example, multiple by being obtained in the time cycle
The mean value of inner disc temperature is as inner disc mean temperature, using the mean value of the multiple capillary temperatures obtained in the time cycle as tubule
Mean temperature, using the mean value of the multiple extra heavy pipe temperature obtained in the time cycle as extra heavy pipe mean temperature.Again out of air-conditioning the phase
Obtain preset refrigeration target evaporating temperature weighting coefficient.It is average according to the inner disc mean temperature, tubule mean temperature, extra heavy pipe
Temperature and preset refrigeration target evaporating temperature weighting coefficient, utilize formula：
TIt is practical=(TInner disc+TExtra heavy pipe+TTubule)/K,
Calculate the corresponding actual evaporation temperature, wherein TIt is practicalRepresent the actual evaporation temperature, TInner discIt represents in described
Disk mean temperature, TExtra heavy pipeRepresent the extra heavy pipe mean temperature, TTubuleRepresent the tubule mean temperature.
Preferably, above-mentioned refrigeration target evaporating temperature weighting coefficient can be with 3.4.
Further, within the time cycle, air conditioner 1 can also obtain its operation information from corresponding compressor.Pressure
The running state information of contracting machine may include：Operation duration, oil return duration and discharge superheat.It is above-mentioned：When operation duration, oil return
Length is compressor after the starting of air conditioner 1 to the time of the operation current point in time and the time of oil return.Above-mentioned exhaust
The degree of superheat can be difference of the air conditioner 1 between the corresponding delivery temperature of current time period and external disk temperature.
Step S102 evaporates the first object when the ambient temperature information is more than the assigned temperature threshold value
Difference between temperature and the actual evaporation temperature is poor as the evaporating temperature.
In embodiments of the present invention, inevitable sequencing is had no between step S102 and step S103, is therebetween
Coordination.After obtaining evaporating temperature difference by step S102, process is directly entered step S105.Optionally, assigned temperature
Threshold value can be set to the arbitrary value between 18 DEG C~29 DEG C.Preferably, assigned temperature threshold value can be set to 29 DEG C.First mesh
Marking evaporating temperature can be 10 DEG C.
Step S103 runs according to the compressor and believes when the ambient temperature information is no more than assigned temperature threshold value
Breath, preset first object evaporating temperature and preset second target evaporating temperature, determine third target evaporating temperature.
In the related art, when ambient temperature information is no more than assigned temperature threshold value and compressor due to detecting indoor ring
When having differences between border temperature and target temperature, high-frequency operation can be initially entered.Also not high between environment temperature simultaneously
(18 DEG C~29 DEG C) just will appear at once and switch to low frequency operation.The frequency of one side air conditioner 1 switches suddenly, can lead
Cause indoor temperature fluctuation big, energy consumption is high.On the other hand, (for example, environment temperature is lower than 18 under some special environment temperatures
DEG C), compressor can be restricted to always low frequency operation, and compressor work is small to cause the compressor air-discharging degree of superheat relatively low, influence
Compressor reliability.
And in embodiments of the present invention, to solve the above-mentioned problems, first assigned temperature can be no more than in ambient temperature information
When threshold value, temperature first is evaporated according to the compressor operation information, preset first object evaporating temperature and preset second target
Degree, determines third target evaporating temperature, so that the target evaporating temperature determined is to meet the demand of current air conditioner 1.Specifically
Ground, as shown in Fig. 2, above-mentioned steps S103 may include following sub-step：
Sub-step S1031, judges whether the compressor operation information meets preset condition.
In embodiments of the present invention, preset condition can be the operation duration no more than the first preset duration and described time
Oily duration is no more than first preset duration.The mode for meeting preset condition, can be it is following any one：When meeting operation
It is long to be no more than the first preset duration or meet oil return duration no more than first preset duration.
Sub-step S1032, if the compressor operation information meets the preset condition, by preset second mesh
Evaporating temperature is marked as the third target evaporating temperature determined.
In the embodiment of the present invention, the second target evaporating temperature is the temperature value being pre-set in air conditioner 1.Second target
Evaporating temperature is greater than first object evaporating temperature.Preferably, the second target evaporating temperature can be 13 DEG C.It runs and believes in compressor
When operation duration is no more than the first preset duration or oil return duration no more than first preset duration in breath, by the second target
The corresponding temperature value of evaporating temperature is as third target evaporating temperature.Preferably, above-mentioned first preset duration can be 5min.?
It is exactly when compressor start is no more than 5min or oil return duration no more than 5min, directly with the second target evaporating temperature work
For third target evaporating temperature.And after third target evaporating temperature has been determined, process enters step S104.
Sub-step S1033, if the compressor operation information is unsatisfactory for the preset condition, according to the discharge superheat
Degree determines a third target evaporating temperature between the first object evaporating temperature and the second target evaporating temperature, described
First object evaporating temperature is less than the second target evaporating temperature.
In embodiments of the present invention, in the second lasting preset duration the discharge superheat less than the first temperature value
When, under being carried out on the basis of corresponding third target evaporating temperature of adjacent upper time cycle according to preset regulated value
It adjusts, using as the current time cycle corresponding third target evaporating temperature.Preferably, above-mentioned first temperature value can
Think 10 DEG C, above-mentioned second preset duration can be 10min, and above-mentioned regulated value can be 1.It is, being based on adjacent upper one
Time cycle corresponding third target evaporating temperature and regulated value, utilize formula：
T1=T2-Δ,
Obtain the corresponding third target evaporating temperature of current time period.Wherein, T1It is corresponding to represent the current time cycle
Third target evaporating temperature, T2Adjacent upper time cycle corresponding third target evaporating temperature was represented, Δ, which represents, to be adjusted
Value.
In embodiments of the present invention, the discharge superheat is greater than second temperature value in the second lasting preset duration
When, it was carried out on the basis of the corresponding third target evaporating temperature of adjacent upper time cycle according to preset regulated value
Up-regulation, using as the current time cycle corresponding third target evaporating temperature；Wherein the second temperature value is big
In first temperature value.Preferably, second temperature value can be 30 DEG C.Specifically, it was based on an adjacent upper time cycle pair
The third target evaporating temperature and regulated value answered, utilize formula：
T1=T2+Δ,
Obtain the corresponding third target evaporating temperature of current time period.Wherein, T1It is corresponding to represent the current time cycle
Third target evaporating temperature, T2Adjacent upper time cycle corresponding third target evaporating temperature was represented, Δ, which represents, to be adjusted
Value.
In embodiments of the present invention, in the second lasting preset duration the discharge superheat between first temperature
When between value and the second temperature value, using the corresponding third target evaporating temperature of adjacent upper time cycle as working as
The corresponding third target evaporating temperature of the preceding time cycle.
It is poor to obtain evaporating temperature according to the third target evaporating temperature and the actual evaporation temperature by step S104.
In embodiments of the present invention, using the difference between third target evaporating temperature and the actual evaporation temperature as steaming
Send out temperature difference.
Step S105, it is poor according to the evaporating temperature obtained, match target frequency amendment ratio.
In embodiments of the present invention, multiple actual evaporation temperature ranges are stored in advance in air conditioner 1 and the frequency is corrected
Corresponding relationship between ratio.The implementation of above-mentioned steps S105 can be：First search the institute with actual evaporation Temperature Matching
State actual evaporation temperature range.Again using the corresponding frequency amendment ratio of the actual evaporation temperature range found as
The target frequency corrects ratio.
It should be noted that the multiple actual evaporation temperature ranges marked off are adjacent to each other and continuous, the actual evaporation
The temperature value of temperature range is higher, and the corresponding frequency amendment ratio is smaller.Specifically, actual evaporation temperature range is small
When -8 DEG C, the corresponding frequency amendment ratio is 10%；The actual evaporation temperature range is greater than -8 DEG C and to be less than -5
DEG C when, corresponding frequency amendment ratio is 8%；The actual evaporation temperature range be greater than -5 DEG C and be less than -3 DEG C when,
The corresponding frequency amendment ratio is 5%；The actual evaporation temperature range be greater than -3 DEG C and be less than -1 DEG C when, it is corresponding
The frequency amendment ratio is 2%；When the actual evaporation temperature range is greater than -1 DEG C and less than 1 DEG C, the corresponding frequency
It is 0% that rate, which corrects ratio,；When the actual evaporation temperature range is greater than 1 DEG C and less than 3 DEG C, the corresponding frequency corrects ratio
Example is -2%；When the actual evaporation temperature range is greater than 3 DEG C and less than 5 DEG C, the corresponding frequency amendment ratio is-
5%；When the actual evaporation temperature range is greater than 5 DEG C and less than 8 DEG C, the corresponding frequency amendment ratio is -8%；Institute
When stating actual evaporation temperature range as greater than 8 DEG C, the corresponding frequency amendment ratio is -10%.
Step S106 corrects ratio according to the current running frequency of the compressor and the target frequency, generates target
Running frequency, so that compressor is run according to target operating frequency.
In embodiments of the present invention, above-mentioned current running frequency can be compressor 1 and adjust pressure in current time period
Actual motion frequency before contracting unit frequency.As shown in figure 3, above-mentioned steps S106 may include following sub-step：
Sub-step S1061 obtained adjacent upper time cycle corresponding target operating frequency.
Sub-step S1062, according to the corresponding target operating frequency of adjacent upper time cycle, current compression
The actual running frequency of machine and the time cycle corresponding target frequency correct ratio, utilize formula：
f1=f2+f3× Δ F,
Calculate the current time cycle corresponding target operating frequency, wherein f1When representing current described
Between the period corresponding target operating frequency, f2Represented adjacent upper time cycle corresponding object run frequency
Rate, f3The running frequency is represented, Δ F represents the target frequency amendment ratio.
To make the compressor of air conditioner 1 in current time period transport according to the target operating frequency that step S106 is obtained
Row.Air conditioner 1 is avoided since ambient temperature information is too low, and running frequency is directly limited to low frequency operation.Make to compress
The frequency adjustment of machine is more accurate, avoids the running frequency of air conditioner 1 from fluctuating widely in a short time, it is ensured that the use of user
Experience and realization really energy conservation.
Second embodiment
Referring to FIG. 4, Fig. 4 shows a kind of the functional block diagram of air conditioner 1 provided in an embodiment of the present invention.Such as figure
Shown in 4, above-mentioned air conditioner 1 includes：Acquisition module 2, obtains module 4, matching module 5 and frequency adjustment module 6 at determining module 3.
Acquisition module 2, for obtaining the corresponding ambient temperature information of the air conditioner 1, reality according to preset period of time
The compressor operation information of evaporating temperature and the air conditioner 1.
Determining module 3, for being transported according to the compressor when the ambient temperature information is no more than assigned temperature threshold value
Row information, preset first object evaporating temperature and preset second target evaporating temperature, determine third target evaporating temperature.
Preferably, judge whether the compressor operation information meets preset condition, wherein the compressor operation information
Including operation duration, oil return duration and discharge superheat, the preset condition includes that the operation duration is default no more than first
Duration or the oil return duration are no more than first preset duration.If the compressor operation information meets the default item
Part, then using the preset second target evaporating temperature as the third target evaporating temperature determined.If the compression
Machine operation information is unsatisfactory for the preset condition, then according to the discharge superheat in the first object evaporating temperature and second
Determine that a third target evaporating temperature, the first object evaporating temperature are less than second mesh between target evaporating temperature
Mark evaporating temperature.
Module 4 is obtained, for obtaining evaporating temperature according to the third target evaporating temperature and the actual evaporation temperature
Difference.
Matching module 5, it is poor for the evaporating temperature according to acquisition, match target frequency amendment ratio.
Frequency adjustment module 6, for correcting ratio according to the current running frequency of the compressor and the target frequency,
Target operating frequency is generated, so that the compressor is run according to the target operating frequency.
It is apparent to those skilled in the art that for convenience and simplicity of description, the air-conditioning of foregoing description
The specific work process of device 1, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In conclusion the embodiment of the invention provides a kind of convertible frequency air-conditioner control method for frequency and air conditioners.Wherein, frequency conversion
Air-conditioning control method for frequency is applied to air conditioner, and the convertible frequency air-conditioner control method for frequency includes：It is obtained according to preset period of time
Take the compressor operation information of the corresponding ambient temperature information of the air conditioner, actual evaporation temperature and the air conditioner；Work as institute
When stating ambient temperature information no more than assigned temperature threshold value, evaporated according to the compressor operation information, preset first object
Temperature and preset second target evaporating temperature, determine third target evaporating temperature；According to the third target evaporating temperature and
It is poor to obtain evaporating temperature for the actual evaporation temperature；It is poor according to the evaporating temperature obtained, match target frequency amendment ratio
Example；Ratio is corrected according to the current running frequency of the compressor and the target frequency, target operating frequency is generated, with toilet
Compressor is stated to run according to the target operating frequency.The reliability for improving compressor and air conditioner, avoids air conditioner
Compressor frequency is widely varied in a short time, and then avoids fluctuating widely for room temperature, improves relaxing for air conditioner
Appropriateness, makes air conditioner more energy conservation and environmental protection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of convertible frequency air-conditioner control method for frequency is applied to air conditioner (1), which is characterized in that the convertible frequency air-conditioner frequency control
Method processed includes：
The corresponding ambient temperature information of the air conditioner (1), actual evaporation temperature and compressor are obtained according to preset period of time
Operation information；
When the ambient temperature information is no more than assigned temperature threshold value, according to the compressor operation information, preset first
Target evaporating temperature and preset second target evaporating temperature, determine third target evaporating temperature；
According to the third target evaporating temperature and the actual evaporation temperature, it is poor to obtain evaporating temperature；
It is poor according to the evaporating temperature obtained, match target frequency amendment ratio；
Ratio is corrected according to the current running frequency of compressor and the target frequency, target operating frequency is generated, so that described
Compressor is run according to the target operating frequency.
2. convertible frequency air-conditioner control method for frequency according to claim 1, which is characterized in that run and believe according to the compressor
Breath, preset second target evaporating temperature and preset first object evaporating temperature, determine that third target evaporating temperature includes：
Judge whether the compressor operation information meets preset condition, wherein when the compressor operation information includes operation
Long, oil return duration and discharge superheat, the preset condition include that the operation duration is no more than the first preset duration or institute
Oil return duration is stated no more than first preset duration；
If the compressor operation information meets the preset condition, using the preset second target evaporating temperature as really
The third target evaporating temperature made；
If the compressor operation information is unsatisfactory for the preset condition, according to the discharge superheat in the first object
A third target evaporating temperature, the first object evaporating temperature are determined between evaporating temperature and the second target evaporating temperature
Less than the second target evaporating temperature.
3. convertible frequency air-conditioner control method for frequency according to claim 2, which is characterized in that described according to the discharge superheat
Degree determines that a third target evaporating temperature includes between the first object evaporating temperature and the second target evaporating temperature：
When the discharge superheat is less than the first temperature value in the second lasting preset duration, in an adjacent upper time cycle
Lowered on the basis of the corresponding third target evaporating temperature according to preset regulated value, using as it is current described when
Between the period corresponding third target evaporating temperature；
When the discharge superheat is greater than second temperature value in the second lasting preset duration, in an adjacent upper time cycle
Raised on the basis of the corresponding third target evaporating temperature according to preset regulated value, using as it is current described when
Between the period corresponding third target evaporating temperature；Wherein the second temperature value is greater than first temperature value；
In the second lasting preset duration the discharge superheat between first temperature value and the second temperature value it
Between when, the corresponding third target evaporating temperature of adjacent upper time cycle is corresponding as the current time cycle
The third target evaporating temperature.
4. convertible frequency air-conditioner control method for frequency according to claim 1-3, which is characterized in that obtain the reality
The mode of evaporating temperature is：
Inner disc mean temperature, tubule mean temperature, extra heavy pipe mean temperature and preset refrigeration target evaporating temperature is obtained respectively to add
Weight coefficient；
Added according to the inner disc mean temperature, tubule mean temperature, extra heavy pipe mean temperature and preset refrigeration target evaporating temperature
Weight coefficient utilizes formula：
TIt is practical=(TInner disc+TExtra heavy pipe+TTubule)/K,
Calculate the corresponding actual evaporation temperature, wherein TIt is practicalRepresent the actual evaporation temperature, TInner discIt is flat to represent the inner disc
Equal temperature, TExtra heavy pipeRepresent the extra heavy pipe mean temperature, TTubuleRepresent the tubule mean temperature.
5. convertible frequency air-conditioner control method for frequency according to claim 1, which is characterized in that in the air conditioner (1) in advance
Store the corresponding relationship between multiple actual evaporation temperature ranges and the frequency amendment ratio, the multiple actual evaporation temperature
Section is adjacent to each other and continuous, and the temperature value of the actual evaporation temperature range is higher, and the corresponding frequency amendment ratio is got over
It is small；Described poor according to the evaporating temperature obtained, the mode for matching target frequency amendment ratio includes：
Search the actual evaporation temperature range with the actual evaporation Temperature Matching；
It is corrected using the corresponding frequency amendment ratio of the actual evaporation temperature range found as the target frequency
Ratio.
6. convertible frequency air-conditioner control method for frequency according to claim 5, which is characterized in that the multiple actual evaporation temperature
Corresponding relationship between section and the frequency amendment ratio includes：
When the actual evaporation temperature range is less than -8 DEG C, the corresponding frequency amendment ratio is 10%；The practical steaming
Sending out temperature range is greater than -8 DEG C and when being less than -5 DEG C, and the corresponding frequency amendment ratio is 8%；The actual evaporation temperature
Section is greater than -5 DEG C and when being less than -3 DEG C, and the corresponding frequency amendment ratio is 5%；The actual evaporation temperature range is
Greater than -3 DEG C and when being less than -1 DEG C, the corresponding frequency amendment ratio is 2%；The actual evaporation temperature range is greater than -1
DEG C and when less than 1 DEG C, the corresponding frequency amendment ratio is 0%；The actual evaporation temperature range is greater than 1 DEG C and to be less than
At 3 DEG C, the corresponding frequency amendment ratio is -2%；When the actual evaporation temperature range is greater than 3 DEG C and less than 5 DEG C,
The corresponding frequency amendment ratio is -5%；It is corresponding when the actual evaporation temperature range is greater than 5 DEG C and less than 8 DEG C
The frequency amendment ratio is -8%；When the actual evaporation temperature range is greater than 8 DEG C, the corresponding frequency corrects ratio
It is -10%.
7. convertible frequency air-conditioner control method for frequency according to claim 1, which is characterized in that described to be worked as according to the compressor
Preceding running frequency and the target frequency correct ratio, and the mode for generating target operating frequency includes：
Obtained adjacent upper time cycle corresponding target operating frequency；
According to the corresponding target operating frequency of adjacent upper time cycle, the current running frequency and this when
Between the period corresponding target frequency correct ratio, utilize formula：
f1=f2+f3× Δ F,
Calculate the current time cycle corresponding target operating frequency, wherein f1Represent the current time cycle
The corresponding target operating frequency, f2Represented adjacent upper time cycle corresponding target operating frequency, f3Generation
Running frequency described in table, Δ F represent the target frequency amendment ratio.
8. convertible frequency air-conditioner control method for frequency according to claim 1, which is characterized in that the convertible frequency air-conditioner frequency control
Method further includes：When the ambient temperature information be more than the assigned temperature threshold value when, by the first object evaporating temperature with
Difference between the actual evaporation temperature is poor as the evaporating temperature.
9. a kind of air conditioner, which is characterized in that the air conditioner (1) includes：
Acquisition module (2), for obtaining the corresponding ambient temperature information of the air conditioner (1), reality according to preset period of time
The compressor operation information of evaporating temperature and the air conditioner (1)；
Determining module (3), for being run according to the compressor when the ambient temperature information is no more than assigned temperature threshold value
Information, preset first object evaporating temperature and preset second target evaporating temperature, determine third target evaporating temperature；
It obtains module (4), for obtaining evaporating temperature according to the third target evaporating temperature and the actual evaporation temperature
Difference；
Matching module (5), it is poor for the evaporating temperature according to acquisition, match target frequency amendment ratio；
Frequency adjustment module (6), it is raw for correcting ratio according to the current running frequency of the compressor and the target frequency
At target operating frequency, so that the compressor is run according to the target operating frequency.
10. air conditioner according to claim 9, which is characterized in that determining module (3) is specifically used for：
Judge whether the compressor operation information meets preset condition, wherein when the compressor operation information includes operation
Long, oil return duration and discharge superheat, the preset condition include that the operation duration is no more than the first preset duration or described
Oil return duration is no more than first preset duration；
If the compressor operation information meets the preset condition, using the preset second target evaporating temperature as really
The third target evaporating temperature made；
If the compressor operation information is unsatisfactory for the preset condition, according to the discharge superheat in the first object
A third target evaporating temperature, the first object evaporating temperature are determined between evaporating temperature and the second target evaporating temperature
Less than the second target evaporating temperature.
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