CN101726073B - Method for controlling convertible frequency air-conditioner - Google Patents
Method for controlling convertible frequency air-conditioner Download PDFInfo
- Publication number
- CN101726073B CN101726073B CN2009101929194A CN200910192919A CN101726073B CN 101726073 B CN101726073 B CN 101726073B CN 2009101929194 A CN2009101929194 A CN 2009101929194A CN 200910192919 A CN200910192919 A CN 200910192919A CN 101726073 B CN101726073 B CN 101726073B
- Authority
- CN
- China
- Prior art keywords
- frequency
- curve
- user
- rotating speed
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a method for controlling a frequency conversion air-conditioner, which is a control method for determining a running frequency of the air-conditioner by setting a difference of an indoor temperature and a target temperature and combining a fan shift speed of an indoor unit set by a user. The timeliness and the sensitivity for controlling are promoted by regulating interval control of a detecting temperature. Furthermore, the direction and the width for changing frequency are regulated according to the difference of cooling and heating so as to meet the actual comfort requirements of the user.
Description
Technical field
The present invention relates to a kind of control method of transducer air conditioning, particularly a kind of according to the indoor temperature change generated in case amount, indoor temperature and target setting temperature gap, and combine the user to set indoor set blower fan shelves speed, confirm the control method of air-conditioner operating frequency.
Background technology
In order to improve the comfortableness of air conditioner user; The designer is except according to the difference between indoor temperature and the target setting temperature; Control the operation of air conditioner frequency and improve air-conditioner refrigerating/heating performance; After also can should moving the operation of air conditioner frequency according to employing, the situation of change of indoor temperature judges whether the operating frequency of further raising or reduction air-conditioning.Like publication number is the control method of the air-conditioner of CN1094149A, and according to the room temperature variable quantity of each time interval t and the temperature difference of design temperature and indoor temperature, the result who carries out fuzzy arithmetic operation controls the operating frequency of compressor.Though from its subordinate relation function that provides, can obtain, the value of NB alters a great deal towards negative sense, the value of ZR equals zero by (no change), and the value of PB is big towards positive change.But; Actual conditions except the comparison of variations in temperature direction and predetermined value, more are to be embodied in the variation of temperature size, the size of temperature gap often; And during different temperatures difference situation for the size of the compressor frequency amplitude of accommodation, this formerly scheme do not embody.The user of reality experience with experimental data in can find that heat in the winter time under the situation with the refrigeration in summer, the user is different for the sensitivity of uniform temp difference, and this difference of embodiment in control how does not more relate to yet.
Summary of the invention
The object of the invention is to overcome above problem, provides a kind of according to the indoor temperature change generated in case amount, indoor temperature and target setting temperature gap; And combine the user to set indoor set blower fan shelves speed; Confirm the control method of air-conditioner operating frequency, and can control promptness and the sensitivity that improves control through the interval of adjustment detected temperatures, and can be according to the difference of refrigerating/heating; The direction and the amplitude of adjusting frequency and changing, thus satisfy the actual comfort requirement of user.
A kind of control method of transducer air conditioning comprises the steps:
A: detect temperature T a (n) in the room, read user's design temperature T sc, calculate temperature difference absolute value delta T with target temperature;
B: read temperature T a (n-1) in the last room that detects, variation of temperature difference Δ T ' in the room of calculating and current detection;
C:, or preestablish the curve calculation frequency conversion increment Delta fi (n) of the Δ T-Δ fi (n) under the corresponding different Δ T ' according to the curve that preestablishes the Δ T '-Δ fi (n) under the corresponding different Δ T;
The curve of said Δ T '-Δ fi (n), for when Δ T one regularly, Δ fi (n) remains unchanged greatly along with Δ T ' change or diminishes, and along with | Δ T ' | change big, and | Δ fi (n)
Δ T-Δ fi (n)
Δ T=0| also become big, promptly when the absolute value of Δ T ' increases, the absolute value of the Δ fi (n) of this Δ T correspondence difference of corresponding Δ fi (n) during with Δ T=0 also increases.
The curve of said Δ T-Δ fi (n), for when Δ T ' regularly, Δ fi (n) remains unchanged greatly along with the change of Δ T or becomes big, and along with | the change of Δ T| is big, and | Δ fi (n)
Δ T '-Δ fi (n)
Δ T '=0| also become big; Promptly when the absolute value of Δ T increases, the absolute value of the difference of the Δ fi (n) that the Δ fi (n) of this Δ T ' correspondence and Δ T '=0 are o'clock corresponding also increases.
D: when frequency conversion increment Delta fi (n)＞0, employing formula one: fi (n)=MAX (fi (n-1), fmin)+Δ fi (n), calculate new target frequency; When frequency conversion increment Delta fi (n)=0, adopt formula two: fi (n)=fi (n-1), calculate new target frequency; When frequency conversion increment Delta fi (n)＜0, adopt formula three: fi (n)=MIN (frun, fi (n-1))+Δ fi (n), calculate new target frequency;
Said fi (n-1) is setpoint frequency last time, and said fmin is minimum running frequency, and said frun is current running frequency;
E: the frequency that changes compressor according to new target frequency.
The curve of explanation Δ T ' further-Δ fi (n), the curve of said Δ T '-Δ fi (n) is corresponding to fixing Δ T, and its frequency conversion increment Delta fi (n) reduces along with the increase of Δ T '; The curve of said Δ T '-Δ fi (n) is along with the increase of corresponding temperature difference Δ T, and its position on ordinate raises.The Δ T that the curve of Δ T '-Δ fi (n) is corresponding is 0 and greater than 0 o'clock, and Δ fi (n) is identical in the change direction of cooling condition and heating condition, and Δ fi (n) is close in the amplitude of the variation of cooling condition and heating condition.The Δ T that the curve of Δ T '-Δ fi (n) is corresponding is less than 0 o'clock, and Δ fi (n) curve of cooling condition is in the below of heating condition Δ fi (n) curve, and the absolute value of cooling condition Δ fi (n) is greater than the absolute value of heating condition Δ fi (n).
Further, in the formula of steps d, introduce air volume coefficient K, described formula one is fi (n)=MAX (fi (n-1); Fmin)+K Δ fi (n); Wherein K is an air volume coefficient, and the rotating speed of setting indoor fan as the user is that the span of K is 0.3＜K＜0.9 when hanging down the wind shelves; When the rotating speed of setting indoor fan as the user was the apoplexy shelves, the span of K was 0.9≤K＜1.1; When the rotating speed of setting indoor fan as the user was high wind shelves, the span of K was 1.1≤K＜2.0.In the formula of steps d, introduce air volume coefficient K, described formula three is fi (n)=MIN (frun, fi (n-1))+K Δ fi (n), and wherein K is an air volume coefficient, and the rotating speed of setting indoor fan as the user is that the span of K is 0.3＜K＜0.9 when hanging down the wind shelves; When the rotating speed of setting indoor fan as the user was the apoplexy shelves, the span of K was 0.9≤K＜1.1; When the rotating speed of setting indoor fan as the user was high wind shelves, the span of K was 1.1≤K＜2.0.
Under the another kind of situation, the rotating speed of setting indoor fan as the user is an automatic transmission, and said frequency-converting control device can change air volume coefficient K according to the wind shelves situation of the blower fan of reality, and when the rotating speed of indoor fan during for low wind shelves, the span of K is 0.3＜K＜0.9; When the rotating speed of indoor fan was the apoplexy shelves, the span of K was 0.9≤K＜1.1; When the rotating speed of indoor fan was high wind shelves, the span of K was 1.1≤K＜2.0.
Further, the detection time between described indoor detected temperatures Ta (n) and the last indoor detected temperatures Ta (n-1), under the high situation of current air-conditioner operating frequency, shortened this detection time at interval at interval; Under the low situation of current air-conditioner operating frequency, this detection time is elongated at interval.Be spaced apart 0.1～30 minute described detection time.
The present invention compared with prior art; Its beneficial effect is: through indoor temperature and target setting temperature gap, and combine the user to set indoor set blower fan shelves speed, confirm the control method of air-conditioner operating frequency; And can control promptness and the sensitivity that improves control through the interval of adjustment detected temperatures; And can be according to the difference of refrigerating/heating, the direction and the amplitude of adjusting frequency and changing, thus satisfy the actual comfort requirement of user.
Description of drawings
Fig. 1 is the flow chart of transducer air conditioning control method of the present invention;
Fig. 2 is the sketch map of Δ T '-Δ fi (n) heating condition curve when Δ T is 0 and 2.5;
Fig. 3 is the sketch map of Δ T '-Δ fi (n) heating condition curve when Δ T is-1 and-3;
Fig. 4 is the sketch map of Δ T '-Δ fi (n) cooling condition curve when Δ T is 0 and 2.5;
Fig. 5 is the sketch map of Δ T '-Δ fi (n) cooling condition curve when Δ T is-1 and-3
Fig. 6 is the sketch map of K value to Δ T '-Δ fi (n) curve influence;
Fig. 7 changes sketch map for adopting different time fi (n) at interval;
Fig. 8 is when Δ T is-1.5, the comparison sketch map of Δ T '-Δ fi (n) cooling and warming curve;
Fig. 9 is when Δ T is-2.5, the comparison sketch map of Δ T '-Δ fi (n) cooling and warming curve.
The specific embodiment
According to accompanying drawing, specify the specific embodiment of the present invention below.
Fig. 1 is the flow chart of the embodiment one of employing transducer air conditioning control method of the present invention, and the step of its control is explained as follows:
At first, carry out step a, detect temperature T a (n) in the room; Read user's design temperature Tsc, the temperature difference Δ T of calculating and target temperature, temperature is detected by the temperature-detecting device in the room indoor set in the room in this step; According to the sense cycle of controller, write down the detected value of each time, as; Writing down the n time detected value Ta (n), is Ta (n-1) at the detected value of a last sense cycle, by that analogy.The air-conditioning target temperature that user's design temperature Tsc sets for the user, promptly the user hopes the temperature that air-conditioner control indoor temperature reaches.Calculate the temperature difference Δ T with target temperature, promptly calculate the difference of current indoor temperature Ta (n) and design temperature, because size and positive and negative direction and the amplitude that directly has influence on VFC of this difference DELTA T; And calculate and the convenience of frequency conversion increase and decrease direction and amplitude relatively for the present invention; Simultaneously, so the application that takes into account refrigeration and heat is in the present invention; This temperature difference Δ T for heating condition with heat for the curve Δ T=Tsc-Ta (n); This temperature difference Δ T for cooling condition with the refrigeration curve for, Δ T=-(Tsc-Ta (n)).
Carry out step b, read temperature T a (n-1) in the last room that detects, variation of temperature difference Δ T ' in the calculated room; As stated, the indoor set temperature-detecting device stores last detected value Ta (n-1), and controller reads the record Ta (n-1) that is stored in the temperature-detecting device; And with indoor temperature Ta (n) calculated room of this detection in variation of temperature difference Δ T ', same because size and positive and negative direction and the amplitude that directly has influence on VFC of this difference DELTA T '; And calculate and the convenience of frequency conversion increase and decrease direction and amplitude relatively for the present invention; Simultaneously, so the application that takes into account refrigeration and heat is in the present invention; This temperature difference Δ T ' for heating condition with heat for the curve Δ T '=Ta (n)-Ta (n-1); This temperature difference Δ T ' for cooling condition with the refrigeration curve for, Δ T '=-(Ta (n)-Ta (n-1)).
Carry out step c, the curve according to room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) of corresponding temperature difference Δ T draws frequency conversion increment Delta fi (n); According to calculate with target temperature difference Δ T; Can be frequency conversion increment Delta fi (n) at ordinate, the unit of frequency conversion increment Delta fi (n) be a base unit among the present invention, and each base unit is represented the some frequencies in 0.3～15 hertz of scope; In the present embodiment; A base unit is represented 4.0 hertz, and abscissa is that room temperature difference in change Δ T ' finds its corresponding curve, and is extremely shown in Figure 6 like Fig. 2.When being Δ T=0 with Fig. 2 heating condition H1, the change curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) is according to the value of current Δ T '; The value that can correspondence finds frequency conversion increment Delta fi (n); When the scope of Δ T ' in-0.5＜Δ T '＜0.5, frequency conversion increment Delta fi (n) is a zero-base our unit, promptly zero hertz; When Δ T ' more than or equal to 0.5 the time, frequency conversion increment Delta fi (n) is less than zero; When Δ T ' smaller or equal to-0.5 the time, frequency conversion increment Delta fi (n) is greater than zero, promptly frequency increases.See that from the temperature conditions of reality when the current indoor temperature of Δ T=0 explanation has reached design temperature, so under the very little situation of indoor temperature change generated in case, be frequency not to be made change, i.e. frequency conversion increment Delta fi (n) is zero; When the variation that has occurred room temperature detection time at interval at more than or equal to 0.5 degree (increase or reduce); Then need do suitable increase and decrease to frequency; Can see that at Δ T ' in 0.5≤Δ T '＜1 scope and the Δ T ' situation in-0.5>=Δ T '＞-1, the value added of frequency conversion increment Delta fi (n) is all little, is 0.5 base unit; Be 2 hertz, this meets the requirement that keeps temperature stabilization.Increase or the increase of minimizing numerical value as Δ T '; As; Δ T '>=1, perhaps Δ T '≤-1 explains that then load emergency case jumpy has appearred in the interior space; Such as: open the door, window etc.; Need have bigger variation to deal with the rapid variation of interior space load to frequency, at this time the change curve from room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) reflects: the absolute value of the value added of frequency conversion increment Delta fi (n) significantly increases, so that the variation of cold/thermic load can be eliminated as early as possible.When H2 is Δ T=2.5 among Fig. 2, the change curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n), the change direction of its each temperature nodes is identical with H1; Compare the increase along with corresponding temperature difference Δ T with H1, its position on ordinate raises.
With Fig. 4 cooling condition is the example analysis, for the ease of relatively, wherein temperature difference Δ T for cooling condition and refrigeration curve, Δ T=-(Tsc-Ta (n)); Temperature difference Δ T ' for cooling condition with the refrigeration curve for, Δ T '=-(Ta (n)-Ta (n-1)).When C1 was Δ T=0, the change curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) was according to the value of current Δ T '; Can correspondence find the value of frequency conversion increment Delta fi (n), in the present embodiment, a base unit is represented 4 hertz;, as Δ T ' during at-0.5＜Δ T '＜0.5 scope, frequency conversion increment Delta fi (n) is zero; When Δ T ' more than or equal to 0.5 the time, frequency conversion increment Delta fi (n) is less than zero; When Δ T ' smaller or equal to-0.5 the time, frequency conversion increment Delta fi (n) is greater than zero, promptly frequency increases.See that from the temperature conditions of reality when the current indoor temperature of Δ T=0 explanation has reached design temperature, so under the very little situation of indoor temperature change generated in case, be frequency not to be made change, i.e. frequency conversion increment Delta fi (n) is zero; When the variation that has occurred room temperature detection time at interval at more than or equal to 0.5 degree (increase or reduce); Then need do suitable increase and decrease to frequency; Can see that at Δ T ' frequency conversion increment Delta fi (n) is 0.5 base unit, is 2 hertz in the scope of 0.5≤Δ T '＜1 and Δ T ' in the scope of-0.5>=Δ T＞-1 time; Value added is all little, and this meets the requirement that keeps temperature stabilization.When the increase of Δ T ' or reduce numerical value and further increase, as, Δ T ' is more than or equal to 1; Perhaps Δ T ' is smaller or equal to-1; Explain that then load emergency case jumpy has appearred in the interior space, such as: open the door, window etc., need have bigger variation to deal with the rapid variation of interior space load frequency; At this time the change curve from room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) reflects: frequency conversion increment Delta fi (n) is 2.2 base units; Be 8.8 hertz, the absolute value of value added significantly increases, so that the variation of cold/thermic load can be eliminated very soon.
Disclosed by the invention is curve according to room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) of temperature difference Δ T; Draw frequency conversion increment Delta fi (n); Equally, also can draw frequency conversion increment Delta fi (n) according to the curve of the temperature difference Δ T-frequency conversion increment Delta fi (n) of corresponding room temperature difference in change Δ T '; The work that both accomplish is identical, also is equivalent.
Carry out steps d, steps d is further to judge to adopt what formula to calculate new frequency, is divided into d10-d14 etc. step by step; At first carry out steps d 10, the Δ fi (n) that finds according to step c judges, when Δ fi (n) greater than 0, then carry out steps d 11; When Δ fi (n) is not more than 0, then carry out steps d 12;
Carry out steps d 11, and employing formula one: fi (n)=MAX (fi (n-1), fmin)+Δ fi (n); Calculate new target frequency, formula one be meant when Δ fi (n) greater than 0 the time, select a frequency as base frequency MAX (fi (n-1); Fmin); Add the increment Delta fi (n) of frequency, and that base frequency is selected between minimum running frequency fmin and setpoint frequency fi last time (n-1) is bigger, as the base frequency of this setpoint frequency; And new target frequency be base frequency and frequency increment with, get into step e then;
Carry out steps d 12, the Δ fi (n) that finds according to step c judges, when Δ fi (n) less than 0, then carry out steps d 13; When Δ fi (n) is not less than 0, then carry out steps d 14;
Carry out steps d 13, adopt formula three: fi (n)=MIN (frun, fi (n-1))+Δ fi (n); Calculate new target frequency, formula three be meant when Δ fi (n) less than 0 the time, select a frequency as base frequency MIN (frun; Fi (n-1)), add the increment Delta fi (n) of frequency, and that base frequency is selected between current running frequency frun and setpoint frequency fi last time (n-1) is less; As the base frequency of this setpoint frequency, and new target frequency be base frequency and frequency increment with because Δ fi (n) is less than 0; Mean that needs reduce current frequency,, and add minus Δ fi (n) so between current running frequency frun and setpoint frequency fi last time (n-1), select lessly; In the hope of reducing target frequency as soon as possible, get into step e then;
Carry out steps d 14, adopt formula two: fi (n)=fi (n-1)+Δ fi (n), calculate new target frequency; Promptly as Δ fi (n) when equaling 0, select the last time setpoint frequency as base frequency, add that frequency increment is as new target frequency; Current indoor temperature is more stable; And Δ fi (n)=0 is equivalent to still keep original target setting frequency, gets into step e then;
Get into step e, change the frequency of compressor according to new target frequency fi (n).
Be lower than design temperature (cooling condition) or indoor temperature occurs and be higher than design temperature (heating condition) when indoor temperature occurring; Be Δ T less than 0 situation; Can select suitable Δ fi (n) according to the change curve of Fig. 3 or the disclosed room temperature difference in change of Fig. 5 Δ T '-frequency conversion increment Delta fi (n); Such as step c and later step description, thereby set the frequency that the target frequency fi (n) that makes new advances changes compressor.Like this, can when big temperature fluctuation occur, adopt big Δ fi (n) to make and reach the user's setting temperature more effectively more timely equally.
Room variations in temperature difference Δ T '-change curve of frequency conversion increment Delta fi (n) all is to have passed through a large amount of experimental verifications under the different Δ T that adopt among the present invention; The numerical value of frequency conversion increment Delta fi (n) in each variations in temperature wherein; All be to combine comfortableness and the air-conditioner of the sense of human body body the most effectively to reach human body comfort and the numerical value confirmed, embodied transducer air conditioning and reached the optimum change of frequency scheme of human body comfort.
Concerning between Δ T-Δ T '-Δ fi (n) three itself reflected situation about changing, and when the variable quantity of Δ T or Δ T ' increased, the variable quantity of Δ fi (n) also can increase; Fully open in the present invention; Concrete numerical value is because variation of temperature is the unit of minimum with 0.5 degree just generally, and each Δ T has only the Δ T ' of 5 correspondences, and the total quantity of Δ T also has only 11; And the quantity that discloses is a lot, can satisfy the demand of reflection variation tendency.
Embodiments of the invention two have been introduced air volume coefficient K in the formula of steps d, set in the running status process of air-conditioning the user, and temperature and air quantity (wind shelves situation) all are important index; General air conditioner room unit air quantity is divided into the 3-5 shelves; Blower fan adopts different rotating speed, thereby produces different indoor air quantity, and the user can select a certain air quantity for use or adopt automatic wind (the wind shelves are related with Δ T); Modally be generally 3 grades; Being high wind shelves, apoplexy shelves, low wind shelves, is that the secondary efficiency air-conditioning of 2600W is an example with modal refrigerating capacity, and its high wind shelves air quantity scope is 460～500 cubic metres/hour; Apoplexy shelves air quantity scope is 390～450 cubic metres/hour; Low wind shelves air quantity scope is 320～380 cubic metres/hour.
Wherein, the size of air quantity is indicating the take notice of degree of user to noise, reaches the degree of taking notice of to wind speed in the room and room temperature variation.When the user selects to hang down the wind shelves,, and do not need blowing feeling and dislike the big variation of temperature so the user needs low noise; When the user selects high wind shelves,, and pay no attention to blowing feeling and variation of temperature so the user not too takes notice of the size of noise.So present embodiment two is through introducing the variable quantity that air volume coefficient K regulates Δ fi (n), in steps d; Step by step the formula one of d11 be fi (n)=MAX (fi (n-1), fmin)+K Δ fi (n), the formula one of d13 is fi (n)=MIN (frun step by step; Fi (n-1))+and K Δ fi (n), in present embodiment two, the rotating speed of setting indoor fan as the user is when hanging down the wind shelves; The value of K is 0.5, and when the rotating speed of setting indoor fan as the user was the apoplexy shelves, the value of K was 1; When the rotating speed of setting indoor fan as the user was high wind shelves, the value of K was 1.2, when the rotating speed of setting indoor fan as the user is automatic transmission; Said frequency-converting control device can change air volume coefficient K according to the wind shelves situation of the blower fan of reality, and concrete numerical value as stated.Shown in Figure 6, original curve is H2, the curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) when this curve is represented Δ T=2.5, and when K=1, the room temperature difference in change Δ T ' of embodiment two-frequency conversion increment Delta fi (n) curve overlaps with the H2 curve; When the user set high wind shelves, the value of K was 1.2, and the actual selected curve of Δ fi (n) is the dotted line shown in the H10 among the figure, and the position of its each point is higher by 20% than H2 curve; When the user set low wind shelves, the value of K was 0.5, and the actual selected curve of Δ fi (n) is the chain-dotted line shown in the H11 among the figure, and the position of its each point is than H2 curve low 50%.The K value that present embodiment three adopts is different with embodiment two, and the K value of corresponding low-medium-high level wind speed is 0.6,1.1,1.8.Can find out that from embodiment the disclosed technical scheme of present embodiment can be used to adopt the situation of 4 grades or 5 grades equally.
Embodiments of the invention four are with above embodiment difference; Change the detection time that its indoor temperature checkout gear carries out between indoor detected temperatures Ta (n) and the last indoor detected temperatures Ta (n-1) at interval; Under the high situation of current air-conditioner operating frequency, shorten this detection time at interval; Under the low situation of current air-conditioner operating frequency, this detection time is elongated at interval.Like this can be under the high situation of operating frequency, increase timely or reduce frequency timely, avoid changing bigger frequency Δ fi (n) under the high frequency operating mode, to the impact of equipment; Can reach simultaneously the frequency of the comfortable needs of user faster.The detection time of the scope at interval that the indoor temperature checkout gear carries out between indoor detected temperatures Ta (n) and the last indoor detected temperatures Ta (n-1) is 0.1-30 minute; The time interval of the high-frequency work that present embodiment four adopts is 3 minutes, and the time interval of other work is 9 minutes.Change sketch map for the fi (n) that adopts the different time interval shown in Fig. 7; Abscissa is the time, and ordinate is a target frequency, and the time interval of embodiment four was 9 minutes when wherein P1 was common frequencies; P2 is that the following time interval of high frequency situations is 3 minutes; As shown in the figure, fi (n) begins to increase when second P1 finishes, and the value of increase is Δ fi (n-1); When next P1 finishes, further increase, the value of increase is Δ fi (n); Since at this moment fi (n) surpass the high frequency boundary of setting, so to begin according to P2 be to detect in the time interval to the indoor temperature checkout gear, then through a P2 cycle, the value added of fi (n) is Δ fi (n+1), is thereafter Δ fi (n+2), Δ fi (n+3).Though the gap length of P2 is shorter than P1, because P1 is 3 times of P2; So in the time of a P1 length, the increment of fi (n) be Δ fi (n+1)+Δ fi (n+2)+Δ fi (n+3) with, though; Because the time interval is short, the indoor temperature Δ T ' in this time interval changes and reduces, shown in Fig. 2 to 4; Δ T ' reduces to make that fi (n) the increment Delta fi (n) in this time interval diminishes, but because the summation of three periodic increments may not necessarily be less than the increment in P1 cycle.But its advantage is exactly, can be more responsive feel variation of temperature trend, thereby make wiser and judgement rapidly for the direction of further change of frequency and amplitude.The time interval of the high-frequency work that the embodiment of the invention five adopts is 4 minutes, and the time interval of other work is 18 minutes.
Can find out that from Fig. 2 to Fig. 5 the curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) is corresponding to fixing Δ T, its frequency conversion increment Delta fi (n) reduces along with the increase of Δ T '; The curve of said room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) is along with the increase of corresponding temperature difference Δ T, and its position on ordinate raises.When the curve that it can also be seen that room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) increased when the absolute value of Δ T ', the absolute value of the difference of the Δ fi (n) that the Δ fi (n) of this Δ T ' correspondence and Δ T '=0 are o'clock corresponding also increased.
More than load emergency case jumpy has appearred in the explanation interior space; Such as: open the door, window etc.; Need there be bigger variation to deal with the rapid variation of interior space load to frequency; At this time the change curve from room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) reflects: the absolute value of the value added of frequency conversion increment Delta fi (n) significantly increases, so that cold/thermic load can be eliminated very soon.In Fig. 2, the change direction of each temperature nodes of H2 is identical with H1; Compare the increase along with corresponding temperature difference Δ T with H1, its position on ordinate raises.
Relatively see from cooling condition and heating condition in addition; At the corresponding Δ T of the curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) is 0 and greater than 0 o'clock; Δ fi (n) is identical in the change direction of cooling condition and heating condition, and Δ fi (n) is close in the amplitude of the variation of cooling condition and heating condition.From Fig. 2 and Fig. 4, just can find out in the comparison of H1 curve and C1 curve.
When the corresponding Δ T of the curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) is less than 0 the time; Δ fi (n) curve of cooling condition is in the below of heating condition Δ fi (n) curve, and the absolute value of cooling condition Δ fi (n) is greater than the absolute value of heating condition Δ fi (n).As shown in Figure 8; C5 and H5 are respectively under the Δ T=-1.5 situation when cooling condition and heating condition, and the curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) can be found out among the figure; Under same Δ T condition; During identical Δ T ' value, the frequency conversion increment Delta fi (n) of cooling condition C5 curve is below the frequency conversion increment Delta fi (n) of heating condition H5 curve, and the absolute value of cooling condition Δ fi (n) is greater than the absolute value of heating condition Δ fi (n).Be under the cooling condition, when the room colder the time, the user more needs to reduce as soon as possible the frequency of refrigeration, thereby reduces refrigerating capacity, reaches to satisfy the comfortable situation that the user sets; And under the heating condition, under the situation of room partial heat, the user reduces that to heat frequency so unobvious as refrigeration, can reduce the frequency that heats a little slowly, thereby reduce heating capacity, reaches and satisfies the comfortable situation that the user sets.Shown in Fig. 9; C6 and H6 are respectively under the Δ T=-2.5 situation when cooling condition and heating condition, and the curve of room temperature difference in change Δ T '-frequency conversion increment Delta fi (n) can be found out among the figure; Under same Δ T condition; During identical Δ T ' value, the frequency conversion increment Delta fi (n) of cooling condition C6 curve below the frequency conversion increment Delta fi (n) of heating condition H6 curve, has explained that equally refrigeration needs the situation of more accelerating that reduces frequency.
Claims (9)
1. the control method of a transducer air conditioning is characterized in that comprising the steps:
A: detect temperature T a (n) in the room, read user's design temperature Tsc, calculate temperature difference absolute value delta T with target temperature;
B: read temperature T a (n-1) in the last room that detects, variation of temperature difference Δ T ' in the room of calculating and current detection;
C:, or preestablish the curve calculation frequency conversion increment Delta fi (n) of the Δ T-Δ fi (n) under the corresponding different Δ T ' according to the curve that preestablishes the Δ T '-Δ fi (n) under the corresponding different Δ T;
The curve of said Δ T '-Δ fi (n), for when Δ T one regularly, Δ fi (n) remains unchanged greatly along with Δ T ' change or diminishes, and along with | Δ T ' | change big, and | Δ fi (n)
Δ T-Δ fi (n)
Δ T=0| also become big;
The curve of said Δ T-Δ fi (n), for when Δ T ' regularly, Δ fi (n) remains unchanged greatly along with the change of Δ T or becomes big, and along with | the change of Δ T| is big, and | Δ fi (n)
Δ T '-Δ fi (n)
Δ T '=0| also become big;
D: when frequency conversion increment Delta fi (n)＞0, employing formula one: fi (n)=MAX (fi (n-1), fmin)+Δ fi (n), calculate new target frequency; When frequency conversion increment Delta fi (n)=0, adopt formula two: fi (n)=fi (n-1), calculate new target frequency; When frequency conversion increment Delta fi (n)＜0, adopt formula three: fi (n)=MIN (frun, fi (n-1))+Δ fi (n), calculate new target frequency;
Said fi (n-1) is setpoint frequency last time, and said fmin is minimum running frequency, and said frun is current running frequency;
E: the frequency that changes compressor according to new target frequency.
2. transducer air conditioning control method according to claim 1, the curve that it is characterized in that said Δ T '-Δ fi (n) is corresponding to fixing Δ T, and its frequency conversion increment Delta fi (n) reduces along with the increase of Δ T '; The curve of said Δ T '-Δ fi (n) is along with the increase of corresponding temperature difference Δ T, and its position on ordinate raises.
3. transducer air conditioning control method according to claim 1; The corresponding Δ T of curve that it is characterized in that said Δ T '-Δ fi (n) is 0 and greater than 0 o'clock; Δ fi (n) is identical in the change direction of cooling condition and heating condition, and Δ fi (n) is close in the amplitude of the variation of cooling condition and heating condition.
4. transducer air conditioning control method according to claim 1; The corresponding Δ T of curve that it is characterized in that said Δ T '-Δ fi (n) is less than 0 o'clock; Δ fi (n) curve of cooling condition is in the below of heating condition Δ fi (n) curve, and the absolute value of cooling condition Δ fi (n) is greater than the absolute value of heating condition Δ fi (n)
5. transducer air conditioning control method according to claim 1; Be characterised in that and in the formula of steps d, introduce air volume coefficient K; Described formula one be fi (n)=MAX (fi (n-1), fmin)+K Δ fi (n), wherein K is an air volume coefficient; The rotating speed of setting indoor fan as the user is that the span of K is 0.3＜K＜0.9 when hanging down the wind shelves; When the rotating speed of setting indoor fan as the user was the apoplexy shelves, the span of K was 0.9≤K＜1.1; When the rotating speed of setting indoor fan as the user was high wind shelves, the span of K was 1.1≤K＜2.0.
6. transducer air conditioning control method according to claim 1; Be characterised in that and in the formula of steps d, introduce air volume coefficient K; Described formula three is fi (n)=MIN (frun, fi (n-1))+K Δ fi (n), and wherein K is an air volume coefficient; The rotating speed of setting indoor fan as the user is that the span of K is 0.3＜K＜0.9 when hanging down the wind shelves; When the rotating speed of setting indoor fan as the user was the apoplexy shelves, the span of K was 0.9≤K＜1.1; When the rotating speed of setting indoor fan as the user was high wind shelves, the span of K was 1.1≤K＜2.0.
7. transducer air conditioning control method according to claim 1; Be characterised in that the rotating speed of setting indoor fan as the user is an automatic transmission; Said frequency-converting control device can change air volume coefficient K according to the wind shelves situation of the blower fan of reality; When the rotating speed of indoor fan during for low wind shelves, the span of K is 0.3＜K＜0.9; When the rotating speed of indoor fan was the apoplexy shelves, the span of K was 0.9≤K＜1.1; When the rotating speed of indoor fan was high wind shelves, the span of K was 1.1≤K＜2.0.
8. according to arbitrary described transducer air conditioning control method in the claim 1 to 7; It is characterized in that detection time between described indoor detected temperatures Ta (n) and the last indoor detected temperatures Ta (n-1) at interval under the high situation of current air-conditioner operating frequency, shorten this detection time at interval; Under the low situation of current air-conditioner operating frequency, this detection time is elongated at interval.
9. transducer air conditioning control method according to claim 8 is characterized in that be spaced apart 0.1～30 minute described detection time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101929194A CN101726073B (en) | 2009-09-30 | 2009-09-30 | Method for controlling convertible frequency air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101929194A CN101726073B (en) | 2009-09-30 | 2009-09-30 | Method for controlling convertible frequency air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101726073A CN101726073A (en) | 2010-06-09 |
| CN101726073B true CN101726073B (en) | 2012-08-22 |
Family
ID=42447338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101929194A Active CN101726073B (en) | 2009-09-30 | 2009-09-30 | Method for controlling convertible frequency air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101726073B (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292416B (en) * | 2012-03-05 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioner and air speed control method and device thereof |
| CN102967022A (en) * | 2012-10-23 | 2013-03-13 | 宁波奥克斯电气有限公司 | Control method for starting variable-frequency compressor of multi-connected air conditioning unit |
| CN102997610B (en) * | 2012-12-31 | 2015-01-21 | 合肥美的电冰箱有限公司 | Refrigeration plant control method |
| CN104566769B (en) * | 2013-10-23 | 2017-07-04 | 珠海格力电器股份有限公司 | air conditioner energy-saving control method and system |
| CN104633840B (en) * | 2013-11-15 | 2017-05-10 | 珠海格力电器股份有限公司 | Control method of air conditioning system and air conditioning system |
| CN103759396B (en) * | 2014-02-10 | 2019-05-07 | 广州松下空调器有限公司 | A kind of indoor fan method for controlling number of revolution of air conditioner |
| CN104930639B (en) * | 2014-03-17 | 2017-10-13 | 美的集团股份有限公司 | Convertible frequency air-conditioner and its control device and control method |
| CN105444339B (en) * | 2014-08-29 | 2019-01-15 | 珠海格力电器股份有限公司 | Control method and system for automatic windshield mode of air conditioner |
| CN104314796A (en) * | 2014-10-21 | 2015-01-28 | 芜湖美智空调设备有限公司 | Compressor frequency controlling method, compressor frequency controlling device and air conditioner |
| CN104896665B (en) * | 2015-05-26 | 2017-12-22 | 美的集团武汉制冷设备有限公司 | The control method and device of air conditioner |
| CN105066322B (en) * | 2015-07-10 | 2018-05-25 | 珠海格力电器股份有限公司 | Air conditioner and fault early warning method and device thereof |
| CN105241007B (en) * | 2015-09-29 | 2018-01-26 | 海信（广东）空调有限公司 | Variable frequency air conditioner control method and device |
| CN105333578B (en) * | 2015-11-26 | 2018-04-13 | 江苏新科电器有限公司 | A kind of compressor frequency control method of convertible frequency air-conditioner |
| CN106871324B (en) * | 2015-12-11 | 2020-12-18 | 北京奇虎科技有限公司 | Control method and device for air conditioner air outlet |
| WO2017163296A1 (en) * | 2016-03-22 | 2017-09-28 | 三菱電機株式会社 | Refrigeration device |
| CN105928149B (en) * | 2016-05-06 | 2018-11-09 | 广东美的暖通设备有限公司 | A kind of DC frequency converting air-conditioner indoor machine wind speed limit frequency control method, system and air-conditioning |
| CN105953369B (en) * | 2016-05-18 | 2019-08-09 | 海信（广东）空调有限公司 | Variable frequency air conditioner control method and device |
| CN106052012B (en) * | 2016-05-25 | 2019-01-15 | 青岛海尔空调器有限总公司 | The method and device of refrigerating of convertible frequency air conditioner control is realized based on distance |
| CN106196788B (en) * | 2016-07-14 | 2020-05-26 | 海信（山东）空调有限公司 | Frequency control method and device for air conditioner compressor |
| WO2018019024A1 (en) * | 2016-07-29 | 2018-02-01 | 广东美的制冷设备有限公司 | Temperature regulation method and device based on thermal sensation value |
| CN106568172B (en) * | 2016-11-08 | 2019-06-14 | 胡佳 | Energy efficiency temperature control method, device and air-conditioning remote control system |
| CN107166634B (en) * | 2017-04-25 | 2020-03-31 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN107575999A (en) * | 2017-09-19 | 2018-01-12 | 武汉海尔电器股份有限公司 | Method and device, air-conditioning for airconditioning control |
| CN107883539B (en) * | 2017-10-17 | 2021-03-19 | 芜湖美智空调设备有限公司 | Air conditioner controller, air conditioner, control method thereof and storage medium |
| CN108386970B (en) * | 2018-01-26 | 2020-04-10 | 青岛海尔空调器有限总公司 | Air conditioner control method and air conditioner |
| EP3746718A4 (en) * | 2018-02-01 | 2021-11-24 | Ademco Inc. | Universal wireless hvac controller with an internally stored infrared (ir) database |
| CN108375175B (en) | 2018-02-08 | 2019-09-24 | 珠海格力电器股份有限公司 | air conditioning system control method and device |
| CN108518827B (en) * | 2018-02-28 | 2019-09-20 | 珠海格力电器股份有限公司 | Control method of air conditioning system and air conditioning system |
| CN111854100A (en) * | 2019-04-26 | 2020-10-30 | 青岛海尔空调器有限总公司 | Control method and device of variable frequency air conditioner and variable frequency air conditioner |
| CN110285538A (en) * | 2019-06-27 | 2019-09-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and computer readable storage medium |
| CN111486545B (en) * | 2020-04-30 | 2021-10-19 | 宁波奥克斯电气股份有限公司 | Control method for expected starting time of sterilizing lamp and air conditioner |
| CN111649484A (en) * | 2020-05-25 | 2020-09-11 | 江苏亚拓新能源科技有限公司 | Frequency conversion control method for heat pump water heater or heat pump water cooling and heating machine |
| CN112484267A (en) * | 2020-11-20 | 2021-03-12 | Tcl空调器(中山)有限公司 | Fan control method and device, air conditioner and storage medium |
| CN114368402B (en) * | 2021-12-31 | 2024-01-02 | 上海科泰运输制冷设备有限公司 | Temperature control method and system and air conditioner |
| CN114413452B (en) * | 2022-02-17 | 2023-07-14 | 珠海格力电器股份有限公司 | Air quantity control method of air conditioner and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100765265B1 (en) * | 2006-08-25 | 2007-10-09 | 삼성전자주식회사 | Air conditioner |
| CN101089495A (en) * | 2006-06-16 | 2007-12-19 | 乐金电子(天津)电器有限公司 | Control method of frequency conversion air conditioner |
| WO2008153577A1 (en) * | 2007-06-15 | 2008-12-18 | General Electric Company | Micro-electromechanical system based switching in heating-ventilation-air-conditioning systems |
| CN101464032A (en) * | 2007-12-20 | 2009-06-24 | 珠海格力电器股份有限公司 | Sinusoidal direct-current variable-frequency air conditioner controller and control method thereof |
| CN101526260A (en) * | 2009-04-20 | 2009-09-09 | 广东志高空调有限公司 | Variable-frequency air-conditioner control method and control device thereof |
-
2009
- 2009-09-30 CN CN2009101929194A patent/CN101726073B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089495A (en) * | 2006-06-16 | 2007-12-19 | 乐金电子(天津)电器有限公司 | Control method of frequency conversion air conditioner |
| KR100765265B1 (en) * | 2006-08-25 | 2007-10-09 | 삼성전자주식회사 | Air conditioner |
| WO2008153577A1 (en) * | 2007-06-15 | 2008-12-18 | General Electric Company | Micro-electromechanical system based switching in heating-ventilation-air-conditioning systems |
| CN101464032A (en) * | 2007-12-20 | 2009-06-24 | 珠海格力电器股份有限公司 | Sinusoidal direct-current variable-frequency air conditioner controller and control method thereof |
| CN101526260A (en) * | 2009-04-20 | 2009-09-09 | 广东志高空调有限公司 | Variable-frequency air-conditioner control method and control device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101726073A (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101726073B (en) | Method for controlling convertible frequency air-conditioner | |
| CN107514743B (en) | Air conditioner control method and device and air conditioner | |
| EP2314942B1 (en) | Air-conditioning apparatus control device and refrigerating apparatus control device | |
| CN111795466B (en) | Air conditioner heating and air-releasing control method and device, air conditioner and computer readable storage medium | |
| CN104613593A (en) | Air conditioner and electric heating control method thereof | |
| CN107300243B (en) | Air-conditioning system, wind file adjusting method and computer readable storage medium | |
| EP0380615B1 (en) | A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners | |
| CN105737345A (en) | Air conditioner and control method thereof | |
| EP2013674A1 (en) | Hvac&r system control utilizing on-line weather forecasts | |
| CN105180349A (en) | Air conditioner and control method and device of air conditioner | |
| CN113587291B (en) | Compensation control method for frequency of fresh air conditioner compressor | |
| JP5076811B2 (en) | Air conditioner | |
| CN104236005A (en) | Defrost control method for air conditioners | |
| CN110579010A (en) | Control method and control device for electronic expansion valve of multi-split internal machine and air conditioner | |
| CN1920427B (en) | Room temperature PID control method of air conditioner set | |
| CN104566788A (en) | Control method and system of room air conditioner as well as air conditioner adopting method and system | |
| CA2798402A1 (en) | Time-based setback recovery | |
| CN114383268B (en) | Method and device for controlling electronic expansion valve, air conditioner and storage medium | |
| CN113739353A (en) | Air conditioner control method, air conditioner and computer readable storage medium | |
| JPH1194327A (en) | Controller for air conditioner | |
| CN112984867A (en) | Air conditioner heating oil return control method and device and air conditioner | |
| CN109405233B (en) | Control device and method for air conditioner, air conditioner and storage medium | |
| CN112628958B (en) | Air conditioner control method and air conditioner | |
| CN114704915B (en) | Control method and device of air conditioning system, air conditioning system and storage medium | |
| CN106765901A (en) | The control method of convertible frequency air-conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131209 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Foshan, Shunde District, Beijiao Town, Penglai Road, the United States Industrial City Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |