CN107062536A - Auxiliary method for controlling frequency conversion, system and the convertible frequency air-conditioner of air-conditioning - Google Patents
Auxiliary method for controlling frequency conversion, system and the convertible frequency air-conditioner of air-conditioning Download PDFInfo
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- CN107062536A CN107062536A CN201710196718.6A CN201710196718A CN107062536A CN 107062536 A CN107062536 A CN 107062536A CN 201710196718 A CN201710196718 A CN 201710196718A CN 107062536 A CN107062536 A CN 107062536A
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- conditioning
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- frequency conversion
- indoor temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
Abstract
The present invention relates to air-conditioning technical field, auxiliary method for controlling frequency conversion, system and the convertible frequency air-conditioner of a kind of air-conditioning are disclosed, the auxiliary method for controlling frequency conversion of the wherein air-conditioning includes：The first indoor temperature and the second indoor temperature before and after the first preset time period interval on air-conditioning are obtained respectively, and the second indoor temperature and preferred temperature are contrasted；When the difference between the second indoor temperature and preferred temperature is not more than auxiliary control activation threshold value, the indoor temperature approach for determining to correspond under the first preset time period according to the first indoor temperature and the second indoor temperature, wherein auxiliary control activation threshold value, which are less than, to be used to trigger the master control activation threshold value that main frequency-changing control system performs main transformer frequency control action；Auxiliary frequency conversion amount is determined according to indoor temperature approach；And frequency conversion action is performed according to auxiliary frequency conversion amount triggering compressor.Realize the temperature rise temperature drop according to indoor temperature to realize the amendment of compressor frequency, prevent the temperature fluctuation after temperature is reached near user's design temperature indoors.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to auxiliary method for controlling frequency conversion, system and the change of a kind of air-conditioning
Frequency air-conditioning.
Background technology
Convertible frequency air-conditioner is the speed by controlling the rotating speed of compressor and reaches the purpose of control room temperature, due to convertible frequency air-conditioner
Have the advantages that small power consumption, comfort level are high, convertible frequency air-conditioner is increasingly by the pro-gaze of users.Compressor is that frequency conversion is empty
The core component of tune, it sucks the refrigerant gas of low-temp low-pressure from air intake duct, and the refrigeration of HTHP is discharged by blast pipe
Agent gas, power is provided for refrigeration (heating) circulation.
Pump type heat convertible frequency air-conditioner is first freezed or heated with peak power, maximum quantity of wind when starting to start every time, fast
Speed is close to after set temperature, and compressor of air conditioner just operates to maintain user under the set slow-speed of revolution, low energy consumption state
Set temperature.
But, due to the personalized difference of indoor environment so that the refrigeration thermic load amount and temperature change of indoor environment
Speed is also differed, when being difficult to long according only to the compressor operating mode of the slow-speed of revolution set in advance in correlation technique, low energy consumption
Between maintain indoor temperature stable in the temperature set by user.For example, when indoor temperature change generated in case it is very fast (as bitter cold or it is extremely hot
When under environment, the temperature set by user can not be maintained for a long time only in accordance with the set slow-speed of revolution, and also one is led
Cause the frequent keying of air-conditioning frequency conversion system so that now the power consumption of convertible frequency air-conditioner can also be greatly increased, secondly causing Indoor Temperature
The fluctuation of degree stability maintenance can not greatly reduce users'comfort in design temperature well.
Found it should be noted that above technical problem is present inventor during the application is put into practice
's.
The content of the invention
The invention aims to sky after indoor temperature is close to user's design temperature for overcoming prior art to exist
The frequent keying of modulation display system and indoor temperature are difficult to a kind of auxiliary VFC of the technical problem there is provided air-conditioning of stability maintenance
Method, system and convertible frequency air-conditioner.
To achieve these goals, one aspect of the present invention provides a kind of auxiliary method for controlling frequency conversion of air-conditioning, and the air-conditioning is matched somebody with somebody
Main frequency-changing control system is equipped with, this method includes：Obtain respectively on the air-conditioning before and after the first preset time period interval
One indoor temperature and the second indoor temperature, and second indoor temperature is contrasted with preferred temperature；And when the second Room
When difference between interior temperature and the preferred temperature is not more than auxiliary control activation threshold value, according to first indoor temperature and the second Room
Interior temperature determines the indoor temperature approach corresponded under first preset time period, and wherein the auxiliary control activation threshold value, which is less than, is used to trigger
The main frequency-changing control system performs the master control activation threshold value of main transformer frequency control action；Auxiliary frequency conversion is determined according to the indoor temperature approach
Amount；And compressor execution frequency conversion action is triggered according to the auxiliary frequency conversion amount.
Preferably, this determines that auxiliary frequency conversion amount includes according to the indoor temperature approach：Utilize the multiple frequency conversion mappings etc. that are stored with
The frequency conversion of level performs verification matching to the indoor temperature approach with reference to table, and wherein frequency conversion mapping grade includes frequency conversion value and humidity province
Between between mapping relations, to determine first temperature range corresponding with the indoor temperature approach and aid in frequency conversion amount.
Preferably, between absolute value and frequency conversion value of the frequency conversion with reference to the temperature range under each frequency conversion mapping grade in table
The relation being proportionate.
Preferably, this triggers the compressor and performs frequency conversion and act and includes according to the auxiliary frequency conversion amount：Obtain the sky of the air-conditioning
Adjust mode of operation；And the frequency for lifting the auxiliary frequency conversion amount is performed to the compressor based on the air-conditioning work pattern got
Rate.
Preferably, the air conditioning mode includes air conditioner refrigerating pattern and air-conditioning heating pattern, should be based on the air-conditioning got
The frequency that mode of operation performs lifting auxiliary frequency conversion amount to the compressor includes：When the air conditioning mode is air conditioner refrigerating pattern and should
Indoor temperature approach be on the occasion of when, and/or when the air conditioning mode is air-conditioning heating pattern and the indoor temperature approach is negative value, rise
The compressor aids in the frequency of frequency conversion amount；And when the air conditioning mode is air conditioner refrigerating pattern and the indoor temperature approach is negative value
When, and/or when the air conditioning mode be air-conditioning heating pattern and the indoor temperature approach be on the occasion of when, reduce compressor auxiliary frequency conversion
The frequency of amount.
Preferably, the air-conditioning includes indoor temperature transmitter, for being determined by measuring the return air temperature of the indoor set
The indoor temperature on the air-conditioning.
Another aspect of the present invention provides a kind of auxiliary frequency-changing control system of air-conditioning, and the air-conditioning is configured with main VFC system
System, the auxiliary frequency-changing control system includes：Temperature acquiring unit, for obtaining respectively on the air-conditioning in the first preset time period
The first indoor temperature and the second indoor temperature before and after interval；Judging unit, for by second indoor temperature and preferred temperature
Contrasted；Temperature difference determining unit, for being touched when the difference between second indoor temperature and the preferred temperature is not more than auxiliary control
When sending out threshold value, the interior for determining to correspond under first preset time period according to first indoor temperature and second indoor temperature
Temperature approach, wherein the auxiliary control activation threshold value, which are less than, to be used to trigger the master control that the main frequency-changing control system performs main transformer frequency control action
Activation threshold value；Frequency conversion amount determining unit, for determining auxiliary frequency conversion amount according to the indoor temperature approach；Converter unit is aided in, is used for
The compressor is triggered according to the auxiliary frequency conversion amount and performs frequency conversion action.
Preferably, the frequency conversion amount determining unit is used for using the frequency conversion for multiple frequency conversion mapping grades that are stored with reference to table to this
Indoor temperature approach performs verification matching, and wherein frequency conversion mapping grade includes the mapping relations between frequency conversion value and temperature range,
To determine first temperature range and auxiliary frequency conversion amount corresponding with the indoor temperature approach.
Preferably, between absolute value and frequency conversion value of the frequency conversion with reference to the temperature range under each frequency conversion mapping grade in table
The relation being proportionate.
Preferably, the auxiliary converter unit includes：Pattern acquiring module, the air-conditioning work pattern for obtaining the air-conditioning；
Frequency-variable module is aided in, the frequency of the auxiliary frequency conversion amount is lifted for being performed based on the air-conditioning work pattern got to the compressor
Rate.
Preferably, the air conditioning mode includes air conditioner refrigerating pattern and air-conditioning heating pattern, it is characterised in that the auxiliary frequency conversion
Module includes：Aid in raising frequency component, for when the air conditioning mode be air conditioner refrigerating pattern and the indoor temperature approach be on the occasion of when,
And/or when the air conditioning mode is air-conditioning heating pattern and the indoor temperature approach is negative value, raise compressor auxiliary frequency conversion amount
Frequency；Aid in frequency reducing component, for when the air conditioning mode is air conditioner refrigerating pattern and the indoor temperature approach is negative value and/
Or when the air conditioning mode be air-conditioning heating pattern and the indoor temperature approach be on the occasion of when, reduce the frequency that the compressor aids in frequency conversion amount
Rate.
Preferably, the air-conditioning includes indoor temperature transmitter, for being determined by measuring the return air temperature of the indoor set
The indoor temperature on the air-conditioning.
Further aspect of the embodiment of the present invention provides a kind of convertible frequency air-conditioner, includes the auxiliary frequency-changing control system of above-mentioned air-conditioning.
By above-mentioned technical proposal, indoor temperature is detected in real time, and when indoor temperature can not trigger main frequency-changing control system
When performing main transformer frequency control action, by detecting that small micro- indoor temperature change generated in case in predetermined short time period is poor, and according to the interior
Temperature difference correspondingly lifts the compression horsepower of compressor.Thus, it is possible to effective guarantee when indoor temperature is reached near predetermined temperature
Afterwards, the amendment of compressor frequency is realized according to the temperature rise temperature drop of indoor temperature, prevents that temperature reaches user's setting indoors
The big ups and downs of temperature after near temperature, guarantee stability maintenance indoor temperature can improve use in design temperature for a long time
The comfort of air conditioner at family；Also, thereby reduce the startup frequency of main frequency-changing control system, reduce convertible frequency air-conditioner refrigeration,
Heat power consumption.
Brief description of the drawings
Figure 1A is illustrated that the frequency of compressor of the convertible frequency air-conditioner of the prior art in refrigeration conversion process with the time
The waveform diagram of change；
Figure 1B is illustrated that what the indoor temperature of convertible frequency air-conditioner of the prior art in the course of the work changed over time
Waveform diagram；
Fig. 2 is illustrated that the schematic flow sheet of the auxiliary method for controlling frequency conversion of the air-conditioning of one embodiment of the invention；
Fig. 3 A are illustrated that the tool of the auxiliary method for controlling frequency conversion for the air-conditioning for applying the embodiment of the present invention in cooling mode
Body schematic flow sheet；
Fig. 3 B are illustrated that the tool of the auxiliary method for controlling frequency conversion for the air-conditioning for applying the embodiment of the present invention in a heating mode
Body schematic flow sheet；
Fig. 4 is illustrated that the structural representation of the auxiliary frequency-changing control system of the air-conditioning of one embodiment of the invention.
Description of reference numerals
The temperature acquiring unit of auxiliary frequency-changing control system 401 of 40 air-conditionings
The temperature difference determining unit of 402 judging unit 403
404 frequency conversion amount determining units 405 aid in converter unit
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Referring to Figure 1A be illustrated that convertible frequency air-conditioner of the prior art refrigeration conversion process in compressor frequency with
The waveform diagram of time change；The Indoor Temperature of convertible frequency air-conditioner of the prior art in the course of the work is illustrated that referring to Figure 1B
Spend the waveform diagram changed over time.As shown in Figure 1A and 1B, when convertible frequency air-conditioner detects temperature not in design temperature
When nearby, start to perform frequency conversion；And when convertible frequency air-conditioner detect indoor temperature reach design temperature it is neighbouring when, then stop become
Frequently.It should be noted that the fluctuating range of the temperature and fluctuation duration, except relevant with Interior Temperature Environment, go back and frequency conversion
The master control activation threshold value for being used to trigger the main frequency-changing control system execution main transformer frequency control action of air-conditioning is with master mode
The size of compressor frequency is related.It can know from Figure 1A and 1B, the fluctuating range and fluctuation when indoor temperature is stable continue
Time is than larger, and the response control of compressor is also slower, and causes the air conditioner refrigerating thermal effect of user is big to give a discount
Button.
In view of this, combination of embodiment of the present invention Fig. 2 provides a kind of auxiliary method for controlling frequency conversion of air-conditioning, air-conditioning configuration
There is main frequency-changing control system, the specific descriptions on the main frequency-changing control system are referred to foregoing embodiments, are not subject to herein
Repeat, and the air-conditioning auxiliary method for controlling frequency conversion primarily directed to air-conditioning in the process of running, especially temperature indoors
During close to user's design temperature, the amendment of compressor frequency and the Optimal improvements scheme for changing phenomenon not in time, as shown in Fig. 2
This method includes：
Step 101：The first indoor temperature and second before and after the first preset time period interval on air-conditioning is obtained respectively
Indoor temperature；
In a step 101, can be by the return air temperature of indoor set to determine the indoor temperature on the air-conditioning, with
And the preferred temperature can be corresponding with the setting instruction of the temperature of user.
Step 102：The difference between the second indoor temperature and preferred temperature is determined, and judges whether the difference is more than auxiliary control
Activation threshold value；
It should be noted that auxiliary control activation threshold value is less than and can be very close to be used to trigger main frequency-changing control system
Perform the master control activation threshold value of main transformer frequency control action.
When the judged result in step 102 shows that the difference is more than auxiliary control activation threshold value, step 1031 is performed；And work as
When judged result in step 102 shows that the difference is less than or equal to auxiliary control threshold value, step 1032 is performed；
Step 1031：The room for determining to correspond under the first preset time period according to the first indoor temperature and the second indoor temperature
Interior temperature approach；
Step 104：Auxiliary frequency conversion amount is determined according to indoor temperature approach；
At step 104, it is possible to use the frequency conversion for multiple frequency conversion mapping grades that are stored with is held with reference to table to indoor temperature approach
Verification of going is matched, and wherein frequency conversion mapping grade includes the mapping relations between frequency conversion value and temperature range, with determination and Indoor Temperature
The first corresponding temperature range of difference and auxiliary frequency conversion amount；Preferably, each frequency conversion in the frequency conversion is with reference to table maps grade
Under temperature range absolute value and frequency conversion value between the relation that is proportionate, that is, frequency conversion is with reference to the big of the frequency conversion value in table
It is small correspondingly to increase with the increase of the absolute value of temperature range；Thus, it is possible to more promptly by indoor temperature amendment to use
The desired design temperature in family.
Step 105：Auxiliary frequency conversion action is performed according to auxiliary frequency conversion amount triggering compressor.
Can be the air-conditioning work pattern for obtaining air-conditioning on the execution of step 105, and based on the air-conditioning work got
Pattern performs the frequency of lifting auxiliary frequency conversion amount to compressor；Wherein air conditioning mode includes air conditioner refrigerating pattern and air-conditioning heating mould
Formula, and when air conditioning mode be air conditioner refrigerating pattern and indoor temperature approach be on the occasion of when, and/or when air conditioning mode is air-conditioning heating
Pattern and when indoor temperature approach is negative value, rise compressor aids in the frequency of frequency conversion amount；And when air conditioning mode is air conditioner refrigerating
Pattern and when indoor temperature approach is negative value, and/or when air conditioning mode be air-conditioning heating pattern and indoor temperature approach be on the occasion of when, drop
Low compressor aids in the frequency of frequency conversion amount.
As a result, temperature is close to design temperature indoors and causes main frequency-changing control system to stop performing main VFC
During action, it can continue to control compressor and perform auxiliary frequency conversion action, for example, control compressor with less than under master control system pattern
Compressor frequency work.Also, by detecting indoor temperature in real time, and when indoor temperature can not trigger main VFC system
When system performs main transformer frequency control action, by detecting that small micro- indoor temperature change generated in case in predetermined short time period is poor, and according to the room
Interior temperature difference correspondingly lifts the compression horsepower of compressor.Thus, it is possible to effective guarantee when that indoor temperature reaches predetermined temperature is attached
After near, the amendment of compressor frequency is realized according to the temperature rise temperature drop of indoor temperature, prevents temperature reaches user indoors from setting
The big ups and downs of temperature after near constant temperature degree, guarantee stability maintenance indoor temperature can be improved in design temperature for a long time
The comfort of air conditioner of user；Also, the startup frequency of main frequency-changing control system is thereby reduced, the system of convertible frequency air-conditioner is reduced
It is cold, heat power consumption.
Step 1032：Difference between master control activation threshold value and second indoor temperature and preferred temperature is contrasted,
And when master control activation threshold value is less than or equal to the difference, it is dynamic that triggering master control frequency conversion system control compressor performs main transformer frequency
Make.
In step 1032, by using the master control activation threshold value for triggering main frequency-changing control system so that temperature indoors
When more than design temperature more than certain limit being master control activation threshold value, master control frequency conversion system is opened in time to enable indoor temperature
It is rapidly achieved design temperature；In one case, the master control activation threshold value can be very close to the auxiliary control activation threshold value,
Thus the seamless switching between frequency-changing control system and auxiliary frequency-changing control system can also be realized.The step 1032 is especially fitted
For the startup stage of air-conditioning, because difference generally between starting of air conditioner stage indoor temperature and design temperature can compare
It is higher, it should now start main frequency-changing control system control compressor operating fast and effeciently to adjust indoor temperature to setting
Near temperature.Then, corresponding auxiliary upconversion operation then based on correlation step above is performed, with to air conditioner refrigerating heating operation
The amendment of frequency and the comfort level for improving air conditioner user.
The technical scheme of the embodiment of the present invention can be applied in air-conditioning, and it includes domestic air conditioning, central air-conditioning etc..This hair
Technical scheme in bright embodiment is especially suitable for utilization in heat pump type air conditioner so that application has the air-conditioning of the embodiment of the present invention
The air-conditioning of auxiliary method for controlling frequency conversion results in the corresponding technical scheme of the embodiment of the present invention and technique effect.
It is easier to be understood by the public in order that obtaining technical scheme, the open embodiment of the present invention will be continued below
Related application scene.
As shown in Figure 3A, under the refrigeration mode of air-conditioning, indoor set is received after starting-up signal, detects indoor set return air temperature
Spend T0, the detection indoor set return air temperature T after predetermined amount of time i secondsni(n=1 now), Pan Duan ∣ Tni-TSWhether ∣ is less than institute
Presetting auxiliary control activation threshold value c, if more than c, normal control can be entered, that is, can select triggering using main transformer frequency
Control system control compressor performs refrigeration frequency conversion action；If less than c, when calculating i seconds in passed through predetermined amount of time
The changing value T of interior air-conditioning return air temperaturenb.Then, by the changing value of the air-conditioning return air temperature and frequency conversion with reference to many in table
Individual temperature range is matched, it is to be understood that the temperature range in table can be continuous, and temperature range and frequency
Relation between value is positive correlation.As an example, as shown in Figure 3A, if 0≤Tnb≤a1, then frequency F is raised1；If a1＜
Tnb≤a2, then frequency F is raised2；If a2＜ Tnb≤a3, then frequency F is raised3；If Tnb＞ a3, then frequency F is raised4；Need explanation
It is, frequency F therein1、F2、F3、F4Value gradually rise, it is possible thereby to realize staged qualitative differentiated amendment compression
The frequency of machine, with as early as possible by indoor temperature stability maintenance in user's aspiration level.And correspondingly, if b1≤Tnb≤ 0, then reduce frequency
F5；If b2＜ Tnb≤b1, then frequency F is reduced6；If b3＜ Tnb≤b2, then frequency F is reduced7；If Tnb＜ b3, then frequency F is reduced8.Its
In, frequency just causes counter plus one after often correcting once, that is, n=n+1, thus the next predetermined amount of time of cycle calculations
The change of return air temperature in i seconds time, and repeat above-mentioned steps.In one case, after air-conditioning is shut down or is powered off, meter
Number device playbacks to 1, that is, n=0.
As shown in Figure 3 B, under the heating mode of air-conditioning, indoor set is received after starting-up signal, detects indoor set return air temperature
Spend T0, the detection indoor set return air temperature T after predetermined amount of time i secondsni(n=1 now), Pan Duan ∣ Tni-TSWhether ∣, which is more than, sets
Definite value c, if more than c, into normal control, that is, triggering to perform using main frequency-changing control system control compressor and heating frequency conversion
Action；If less than or equal to c, calculating the change T of return air temperature in the passed through i seconds time of predetermined amount of timenb.If 0≤Tnb≤
a1, then frequency F is reduced1；If a1＜ Tnb≤a2, then frequency F is reduced2；If a2＜ Tnb≤a3, then frequency F is reduced3；If Tnb＞ a3, then
Reduce frequency F4.If b1≤Tnb≤ 0, then raise frequency F5；If b2＜ Tnb≤b1, then frequency F is raised6；If b3＜ Tnb≤b2, then rise
High-frequency F7；If Tnb＜ b3, then frequency F is raised8；Counter adds one after frequency amendment, that is, n=n+1 next with cycle calculations
The change of individual predetermined amount of time i seconds interior return air temperatures is simultaneously operated accordingly.In one case, when air-conditioning is shut down or is powered off
Afterwards, counter playbacks to 1, that is, n=0.
Embodiment as shown in Fig. 3 A, 3B corrects pressure there is provided a kind of heat pump type air conditioner in cooling and warming running
A kind of control method of contracting unit frequency, i.e., realize the amendment of compressor frequency according to the temperature rise temperature drop of indoor temperature, prevent room
Big ups and downs of the interior temperature after design temperature has been reached, make the output effect of air-conditioning more meet user's request, improve comfortable
Degree.
The structural representation of the auxiliary frequency-changing control system of the air-conditioning of one embodiment of the invention is illustrated that referring to Fig. 4, should
Frequency-changing control system 40 is aided in be used to coordinate to realize the control to the frequency of compressor with the main frequency-changing control system of air-conditioning, it is real
Apply the present embodiment air-conditioning can include indoor temperature transmitter, from there through measurement indoor set return air temperature with determine on
The indoor temperature of air-conditioning.The auxiliary frequency-changing control system 40 determines single comprising temperature acquiring unit 401, judging unit 402, the temperature difference
Member 403, frequency conversion amount determining unit 404 and auxiliary converter unit 405.Wherein temperature acquiring unit 401, for obtain respectively on
First indoor temperature and second indoor temperature of the air-conditioning before and after the first preset time period interval；Judging unit 402, for by
Two indoor temperatures are contrasted with preferred temperature；Temperature difference determining unit 403, for when between the second indoor temperature and preferred temperature
Difference when being not more than auxiliary control activation threshold value, according to the first indoor temperature and the second indoor temperature determine to correspond to first it is default when
Between indoor temperature approach under section, wherein auxiliary control activation threshold value is less than to be used to triggering main frequency-changing control system and performs main VFC and move
The master control activation threshold value of work；Frequency conversion amount determining unit 404, for determining auxiliary frequency conversion amount according to indoor temperature approach；Aid in frequency conversion
Unit 405, for performing frequency conversion action according to auxiliary frequency conversion amount triggering compressor.
As further disclosure, frequency conversion amount determining unit 404 can be used for utilizing multiple frequency conversions mapping grades that are stored with
Frequency conversion with reference to table to indoor temperature approach perform verification matching, wherein frequency conversion mapping grade include between frequency conversion value and temperature range
Mapping relations, to determine first temperature range corresponding with indoor temperature approach and aid in frequency conversion amount.It is highly preferred that above-mentioned change
The relation that frequency is proportionate between the absolute value and frequency conversion value with reference to the temperature range under each frequency conversion mapping grade in table.
As further open, aid in converter unit 405 to include pattern acquiring module (not shown), can be used for obtaining
The air-conditioning work pattern of air-conditioning；Frequency-variable module (not shown) is aided in, be can be used for based on the air-conditioning work pattern got to pressure
Contracting machine performs the frequency of lifting auxiliary frequency conversion amount.More specifically, air conditioning mode includes air conditioner refrigerating pattern and air-conditioning heating pattern,
Auxiliary frequency-variable module can include：Raising frequency component is aided in, for being air conditioner refrigerating pattern and indoor temperature approach is when air conditioning mode
On the occasion of when, and/or when air conditioning mode is air-conditioning heating pattern and indoor temperature approach is negative value, rise compressor auxiliary frequency conversion amount
Frequency；Frequency reducing component is aided in, for when air conditioning mode is air conditioner refrigerating pattern and indoor temperature approach is negative value, and/or working as
Air conditioning mode be air-conditioning heating pattern and indoor temperature approach be on the occasion of when, reduction compressor aids in the frequency of frequency conversion amount.
Method above is referred on the correlation technique feature in embodiment illustrated in fig. 4 system and the description of technique effect
The description of embodiment, not in this to go forth for identical content.
One embodiment of the invention also provides a kind of convertible frequency air-conditioner, includes the auxiliary frequency-changing control system of above-mentioned air-conditioning.Should
Convertible frequency air-conditioner can be comprising domestic air conditioning, central air-conditioning etc..Technical scheme in the embodiment of the present invention is especially suitable for utilization in
In heat pump type air conditioner so that the convertible frequency air-conditioner that application has the auxiliary frequency-changing control system of air-conditioning shown in the embodiment of the present invention can be obtained
Obtain technical scheme and corresponding technique effect in foregoing embodiments.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited thereto.At this
In the range of the technology design of invention, a variety of simple variants, including each particular technique can be carried out to technical scheme
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various possible combinations
No longer separately illustrate.But these simple variants and combination should equally be considered as content disclosed in this invention, belong to the present invention
Protection domain.
Claims (13)
1. a kind of auxiliary method for controlling frequency conversion of air-conditioning, the air-conditioning is configured with main frequency-changing control system, it is characterised in that the side
Method includes：
The first indoor temperature and the second indoor temperature before and after the first preset time period interval on the air-conditioning are obtained respectively,
And contrasted second indoor temperature with preferred temperature；And
When the difference between second indoor temperature and the preferred temperature is not more than auxiliary control activation threshold value, according to described
One indoor temperature and second indoor temperature determine the indoor temperature approach corresponded under first preset time period, wherein institute
State auxiliary control activation threshold value and be less than the master control activation threshold value for being used for triggering the main frequency-changing control system execution main transformer frequency control action；
Auxiliary frequency conversion amount is determined according to the indoor temperature approach；And
The compressor is triggered according to the auxiliary frequency conversion amount and performs frequency conversion action.
2. according to the method described in claim 1, it is characterised in that described that auxiliary frequency conversion amount is determined according to the indoor temperature approach
Including：
Verification matching, wherein institute are performed to the indoor temperature approach with reference to table using the frequency conversion for multiple frequency conversion mapping grades that are stored with
State frequency conversion mapping grade and include the mapping relations between frequency conversion value and temperature range, it is corresponding with the indoor temperature approach to determine
The first temperature range and auxiliary frequency conversion amount.
3. method according to claim 2, it is characterised in that the frequency conversion is with reference under each frequency conversion mapping grade in table
The relation being proportionate between the absolute value and frequency conversion value of temperature range.
4. according to the method described in claim 1, it is characterised in that described that the compressor is triggered according to the auxiliary frequency conversion amount
Performing frequency conversion action includes：
Obtain the air-conditioning work pattern of the air-conditioning；And
The frequency of the lifting auxiliary frequency conversion amount is performed to the compressor based on the air-conditioning work pattern got.
5. method according to claim 4, the air conditioning mode includes air conditioner refrigerating pattern and air-conditioning heating pattern, it is special
Levy and be, the frequency bag for performing lifting auxiliary frequency conversion amount to the compressor based on the air-conditioning work pattern got
Include：
When the air conditioning mode be air conditioner refrigerating pattern and the indoor temperature approach be on the occasion of when, and/or when the air conditioning mode
When for air-conditioning heating pattern and the indoor temperature approach being negative value, the frequency that the compressor aids in frequency conversion amount is raised；And
When the air conditioning mode is air conditioner refrigerating pattern and the indoor temperature approach is negative value, and/or when the air conditioning mode
For air-conditioning heating pattern and the indoor temperature approach be on the occasion of when, reduce the frequency that the compressor aids in frequency conversion amount.
6. according to the method described in claim 1, it is characterised in that the air-conditioning includes indoor temperature transmitter, for passing through
The return air temperature of the indoor set is measured to determine the indoor temperature on the air-conditioning.
7. a kind of auxiliary frequency-changing control system of air-conditioning, the air-conditioning is configured with main frequency-changing control system, it is characterised in that the sky
The auxiliary frequency-changing control system of tune includes：
Temperature acquiring unit, for obtaining the first Indoor Temperature on the air-conditioning before and after the first preset time period interval respectively
Degree and the second indoor temperature；
Judging unit, for second indoor temperature to be contrasted with preferred temperature；
Temperature difference determining unit, for being not more than auxiliary control triggering when the difference between second indoor temperature and the preferred temperature
During threshold value, determine to correspond under first preset time period according to first indoor temperature and second indoor temperature
Indoor temperature approach, is moved wherein the auxiliary control activation threshold value is less than for triggering the main VFC of the main frequency-changing control system execution
The master control activation threshold value of work；
Frequency conversion amount determining unit, for determining auxiliary frequency conversion amount according to the indoor temperature approach；
Converter unit is aided in, frequency conversion action is performed for triggering the compressor according to the auxiliary frequency conversion amount.
8. the auxiliary frequency-changing control system of air-conditioning according to claim 7, it is characterised in that the frequency conversion amount determining unit
Verification matching, wherein institute are performed to the indoor temperature approach with reference to table for the frequency conversion using multiple frequency conversion mapping grades that are stored with
State frequency conversion mapping grade and include the mapping relations between frequency conversion value and temperature range, it is corresponding with the indoor temperature approach to determine
The first temperature range and auxiliary frequency conversion amount.
9. the auxiliary frequency-changing control system of air-conditioning according to claim 8, it is characterised in that the frequency conversion is with reference in table
The relation being proportionate between the absolute value and frequency conversion value of temperature range under each frequency conversion mapping grade.
10. system according to claim 7, it is characterised in that the auxiliary converter unit includes：
Pattern acquiring module, the air-conditioning work pattern for obtaining the air-conditioning；
Frequency-variable module is aided in, for performing the lifting auxiliary to the compressor based on the air-conditioning work pattern got
The frequency of frequency conversion amount.
11. system according to claim 10, it is characterised in that the air conditioning mode includes air conditioner refrigerating pattern and air-conditioning
Heating mode, it is characterised in that the auxiliary frequency-variable module includes：
Aid in raising frequency component, for when the air conditioning mode be air conditioner refrigerating pattern and the indoor temperature approach be on the occasion of when and/
Or when the air conditioning mode is air-conditioning heating pattern and the indoor temperature approach is negative value, raise the compressor auxiliary frequency conversion
The frequency of amount；
Aid in frequency reducing component, for when the air conditioning mode is air conditioner refrigerating pattern and the indoor temperature approach is negative value and/
Or when the air conditioning mode be air-conditioning heating pattern and the indoor temperature approach be on the occasion of when, reduce the compressor auxiliary frequency conversion
The frequency of amount.
12. the auxiliary frequency-changing control system of air-conditioning according to claim 7, it is characterised in that the air-conditioning includes interior
Temperature sensor, for determining the indoor temperature on the air-conditioning by measuring the return air temperature of the indoor set.
13. a kind of convertible frequency air-conditioner, it is characterised in that the auxiliary frequency conversion control including the air-conditioning any one of claim 7-12
System processed.
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| CN108662729A (en) * | 2018-03-29 | 2018-10-16 | 广东美的制冷设备有限公司 | Air-conditioner control method, device, air conditioner and computer readable storage medium |
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