CN101963149A - Frequency conversion control method and device as well as refrigeration equipment with same - Google Patents
Frequency conversion control method and device as well as refrigeration equipment with same Download PDFInfo
- Publication number
- CN101963149A CN101963149A CN2010102987630A CN201010298763A CN101963149A CN 101963149 A CN101963149 A CN 101963149A CN 2010102987630 A CN2010102987630 A CN 2010102987630A CN 201010298763 A CN201010298763 A CN 201010298763A CN 101963149 A CN101963149 A CN 101963149A
- Authority
- CN
- China
- Prior art keywords
- temperature
- compressor
- rotating speed
- refrigerating chamber
- temperature difference
- 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.)
- Granted
Links
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a frequency conversion control method which comprises the following steps of: measuring environment temperature and acquiring the set temperature of a refrigerating room; setting reference environment temperature and the reference set temperature of the refrigerating room; and calculating the rotation speed of a compressor by using the reference environment temperature, the reference set temperature of the refrigerating room, the environment temperature and the set temperature of the refrigerating room. The invention also discloses a frequency conversion device which comprises an operation panel, a temperature measurement module, a temperature sensor and a control module. The invention also discloses refrigeration equipment which comprises a main body and the frequency conversion device. The invention comprehensively considers different requirements of the refrigeration equipment in different environment temperature and set temperature conditions, shortens refrigeration time and increases refrigeration efficiency.
Description
Technical field
The present invention relates to chiller plant design and manufacturing technology field, particularly a kind of method for controlling frequency conversion, install and have its chiller plant.
Background technique
Along with the raising of people's living standard, chiller plants such as refrigerator have become the necessity of people's daily life.Particularly the frequency conversion refrigerator of low power consumption becomes more and more to be subjected to people's favor.The VFC of the frequency conversion refrigerator in the market temperature difference that temperature and the temperature inside the box are set that adopt are determined the rotating speed that compressor is different according to the different temperature difference as variable then, and controlled variable is single.
There are the following problems for existing frequency conversion refrigerator:
Because controlled variable is single, do not consider all sidedly that frequency conversion refrigerator is in varying environment temperature and the situation that temperature requirements is set, therefore can't accomplish the applicability maximization to the rotating speed control of compressor, can not make in good time correction according to the situation of user's Environmental Conditions and user demand, and cost is higher, refrigerating efficiency is lower, and cooling time is long.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, the present invention has proposed a kind of method for controlling frequency conversion, installed and has had its chiller plant especially, with according to the difference of Environmental Conditions and the situation of user demand, revises in good time, the refrigerating efficiency height, cooling time is short.
For achieving the above object, one aspect of the present invention has proposed a kind of method for controlling frequency conversion, comprises the steps:
Measures ambient temperature, and obtain the temperature that is provided with of refrigerating chamber;
The benchmark that reference ambient temperature and refrigerating chamber are set is provided with temperature; With
Utilize the benchmark of described reference ambient temperature, refrigerating chamber that the temperature that is provided with of temperature, ambient temperature and refrigerating chamber is set, calculate compressor rotary speed.
Method for controlling frequency conversion according to the embodiment of the invention, utilize the temperature computation that is provided with of ambient temperature and refrigerating chamber to obtain compressor rotary speed, thereby the rotating speed control that can make compressor is done to such an extent that applicability maximizes, promptly consider comprehensively the varying environment temperature with temperature conditions is set under different demands, shorten cooling time, improve refrigerating efficiency.
In one embodiment of the invention, calculate compressor rotary speed and also comprise: described ambient temperature and reference ambient temperature are compared, calculate the rotating speed of compressor respectively, comprising according to comparative result:
Work as T
h≤ T
H0The time, R
Comp=(T
h/ T
H0)
X1* (T
Fs/ T
Fs0)
Y1* R
Comp0
Work as T
h＞T
H0The time, R
Comp=(T
h/ T
H0)
X2* (T
FsT
Fs0)
Y2* R
Comp0,
Wherein, T
hBe ambient temperature, T
H0Be reference ambient temperature, T
FsBe the temperature that is provided with of refrigerating chamber, T
Fs0For the refrigerating chamber benchmark is provided with temperature, R
CompBe compressor rotary speed, R
Comp0Be compressor reference design rotating speed, x1, x2, y1, y2 are correction factor and are constant.
Thus, the compressor rotary speed to the different temperatures section that is higher or lower than reference ambient temperature adopts different formula to calculate respectively, thereby considers the demand status of different temperatures section lower compression machine rotating speed.
In one embodiment of the invention, calculate compressor rated designs rotating speed, comprising according to described compressor rotary speed:
The rated designs rotating speed interval of compressor is set;
Judge the rated designs rotating speed interval at described compressor rotary speed place, obtaining the compressor rated designs rotating speed under the corresponding rated designs rotating speed interval,
Wherein, the maximum amount in the described compressor rated designs rotating speed rated designs rotating speed interval that is described compressor rotary speed place is decided design speed.
Thus, compressor rated designs rotating speed under the temperature is set, thereby satisfies the needs of standardized designs by design varying environment temperature and refrigerating chamber.
In one embodiment of the invention, after the described calculating compressor rotary speed, described compressor rated designs rotating speed is revised, comprised the steps:
The operation of measuring described refrigerating chamber begins the Current Temperatures of temperature, described refrigerating chamber, and the operation of described cold storage room begins the Current Temperatures of temperature and described cold storage room;
Calculate first temperature difference and second temperature difference, wherein, the Current Temperatures that described first temperature difference is described refrigerating chamber and the operation of described refrigerating chamber begin the temperature difference amount of temperature, and the Current Temperatures that described second temperature difference is described cold storage room and the operation of described cold storage room begin the temperature difference amount between the temperature; With
According to described first temperature difference and second temperature difference described compressor rated designs rotating speed is revised.
Thus, begin temperature and Current Temperatures separately by the operation of comparing refrigerating chamber and cold storage room respectively, thereby can feed back the variation of the actual motion state of chiller plant in real time, so that described compressor rated designs rotating speed is revised by temperature difference variable.
In one embodiment of the invention, utilize described first temperature difference and second temperature difference that compressor rated designs rotating speed is revised, also comprise:
The correction interval of described first temperature difference and the reference value of described second temperature difference are set;
The reference value of described second temperature difference and described second temperature difference is compared, and judge the correction interval of first temperature difference at described first temperature difference place, so that described compressor rated designs rotating speed is revised.
Thus, feed back the actual motion state of chiller plant in real time according to the running temperature of refrigerating chamber and cold storage room, thereby in time compressor rotary speed is reasonably revised.
In one embodiment of the invention, during fast cold pattern, improve the rated designs rotating speed of described compressor; During the quick-frozen pattern, the rated designs rotating speed of revising described compressor is a maximum speed.
Thus, by improving the rated designs rotating speed of compressor, reach fast cold state sooner, the refrigerating efficiency height.Rated designs rotating speed by the raising compressor is a maximum speed, reaches the quick-frozen state sooner, and cooling time is short, the refrigerating efficiency height.
The present invention has proposed a kind of frequency-converting control device on the other hand, comprising: operation panel, and the user is provided with temperature setting by described operation panel to the benchmark of temperature, reference ambient temperature and the refrigerating chamber of cold storage room and refrigerating chamber;
Temperature-measuring module is used for measures ambient temperature;
Temperature transducer, described temperature transducer comprises freezer temperature sensor and refrigerator temperature sensor, described freezer temperature sensor is positioned at described refrigerating chamber, is used to detect the current temperature value of described refrigerating chamber,
Described refrigerator temperature sensor is positioned at described cold storage room, is used to detect the current temperature value of described cold storage room; With
Control module, described control module utilize the benchmark of described reference ambient temperature, refrigerating chamber that the temperature that is provided with of temperature, ambient temperature and refrigerating chamber is set, and calculate compressor rotary speed.
In one embodiment of the invention, described control module is calculated compressor rotary speed by following formula,
Work as T
h≤ T
H0The time, R
Comp=(T
h/ T
H0)
X1* (T
Fs/ T
Fs0)
Y1* R
Comp0
Work as T
h＞T
H0The time, R
Comp=(T
h/ T
H0)
X2* (T
Fs/ T
Fs0)
Y2* R
Comp0,
Wherein, T
hBe ambient temperature, T
H0Be reference ambient temperature, T
FsBe the temperature that is provided with of refrigerating chamber, T
Fs0For the refrigerating chamber benchmark is provided with temperature, R
CompBe compressor rotary speed, R
Comp0Be compressor reference design rotating speed, x1, x2, y1, y2 are correction factor and are constant.
In one embodiment of the invention, described control module is by being provided with the rated designs rotating speed interval of compressor, judging the rated designs rotating speed interval at described compressor rotary speed place, and obtain the compressor rated designs rotating speed under the corresponding rated designs rotating speed interval
Wherein, the maximum amount in the described compressor rated designs rotating speed rated designs rotating speed interval that is described compressor rotary speed place is decided design speed.
In one embodiment of the invention, the operation of the described refrigerating chamber of described temperature sensor measurement begins the Current Temperatures of temperature, described refrigerating chamber, and the operation of described cold storage room begins the Current Temperatures of temperature and described cold storage room;
Described control module is calculated first temperature difference and second temperature difference according to the temperature value from described temperature transducer, wherein, the Current Temperatures that described first temperature difference is described refrigerating chamber and the operation of described refrigerating chamber begin the temperature difference of temperature, and the Current Temperatures that described second temperature difference is described cold storage room and the operation of described cold storage room begin the temperature difference between the temperature; With according to described first temperature difference and second temperature difference described compressor rated designs rotating speed is revised.
In one embodiment of the invention, described control module is by the correction interval of first temperature difference of setting and the reference value of second temperature difference, the reference value of described second temperature difference and described second temperature difference is compared, and judge the correction interval of first temperature difference at described first temperature difference place, so that described compressor rated designs rotating speed is revised.
Frequency-converting control device according to the embodiment of the invention, utilize the temperature computation that is provided with of ambient temperature and refrigerating chamber to obtain compressor rotary speed, thereby the rotating speed control that can make compressor is done to such an extent that applicability maximizes, promptly consider comprehensively the varying environment temperature with temperature conditions is set under different demands, shorten cooling time, improve refrigerating efficiency.
Further aspect of the present invention has proposed a kind of chiller plant, comprising: body and aforesaid frequency-converting control device.
Chiller plant according to the embodiment of the invention, utilize the ambient temperature of chiller plant and the temperature computation that is provided with of refrigerating chamber to obtain compressor rotary speed, thereby the rotating speed control that can make compressor is done to such an extent that applicability maximizes, promptly consider comprehensively chiller plant the varying environment temperature with temperature conditions is set under different demands, shorten cooling time, improve refrigerating efficiency.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the flow chart according to the method for controlling frequency conversion of the embodiment of the invention; With
Fig. 2 is the schematic representation according to the frequency-converting control device of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
For a better understanding of the present invention, below with reference to a kind of method for controlling frequency conversion of accompanying drawing description according to the embodiment of the invention.Wherein, this method for controlling frequency conversion is used in the chiller plant, and chiller plant comprises refrigerating chamber and cold storage room, and comprises compressor in the chiller plant.
As shown in Figure 1, the method for controlling frequency conversion of the embodiment of the invention comprises the steps:
S101: measures ambient temperature, and obtain the temperature that is provided with of refrigerating chamber;
At first, measure chiller plant ambient temperature T
h, i.e. the temperature of the residing external environment of chiller plant.Then, obtain chiller plant refrigerating chamber temperature T is set
Fs, i.e. the temperature that need reach by the predefined refrigerating chamber of user.
Ambient temperature by introducing chiller plant and these two key variables of temperature are set, thus consider chiller plant demand status under the varying environment temperature comprehensively.
S102: the reference ambient temperature of chiller plant and the benchmark of refrigerating chamber are set temperature is set;
The reference ambient temperature T of the chiller plant that is provided with
H0Wherein, reference ambient temperature T
H0After taking all factors into consideration the chiller plant ambient temperature, a reference value of setting.By this reference ambient temperature T
H0The ambient temperature that measures is divided into high temperature section and low-temperature zone substantially.
In addition, the benchmark that the refrigerating chamber of chiller plant further is set is provided with temperature T
Fs0
S103: utilize the benchmark of reference ambient temperature, refrigerating chamber that the temperature that is provided with of temperature, ambient temperature and refrigerating chamber is set, calculate compressor rotary speed T
Fs
With the chiller plant ambient temperature T that obtains in the step 101
hWith the reference ambient temperature T that is provided with in the step 102
H0And the benchmark of refrigerating chamber is provided with temperature T
Fs0Compare, respectively at chiller plant ambient temperature T
hBe higher than and be lower than reference ambient temperature T
H0The time, adopt different formulas to calculate compressor rotary speed R
Comp
Particularly, as chiller plant ambient temperature T
hBe less than or equal to reference ambient temperature T
H0The time,
Be T
h≤ T
H0The time, R
Comp=(T
h/ T
H0)
X1* (T
Fs/ T
Fs0)
Y1* R
Comp0(1)
As chiller plant ambient temperature T
hBe higher than reference ambient temperature T
H0The time,
Be T
h＞T
H0The time, R
Comp=(T
h/ T
H0)
X2* (T
Fs/ T
Fs0)
Y2* R
Comp0, (2)
Wherein, T
hBe the ambient temperature of chiller plant, T
H0Be reference ambient temperature, T
FsBe the temperature that is provided with of refrigerating chamber, T
Fs0For the refrigerating chamber benchmark is provided with temperature, R
CompBe compressor rotary speed, R
Comp0Be compressor reference design rotating speed, x1, x2, y1, y2 are correction factor and are constant.
Utilize reference ambient temperature with ambient temperature T
hBe divided into low-temperature zone and high temperature section, the compressor rotary speed to chiller plant in the different temperatures section calculates respectively respectively, thereby considers that chiller plant is to the demand of compressor rotary speed under the different temperatures section.
For the computing that cooperates above-mentioned formula and the needs of standardized designs, the ambient temperature range of chiller plant is further segmented, be divided into n temperature section altogether.In each temperature section, to ambient temperature T
hGet fixed value.
Particularly, to divide temperature section respectively be T to ambient temperature range
h≤ T
H1, T
H1＜T
h≤ T
H2, T
H2＜T
h≤ T
H3... T
Hn-2＜T
h≤ T
Hn-1And T
h＞T
Hn-1, in each temperature section, ambient temperature is got fixed value.
In one embodiment of the invention, the ambient temperature in each temperature section is got the temperature maximum value in this temperature section.
Wherein, work as T
h≤ T
H1The time, T
h=T
H1
Work as T
H1＜T
h≤ T
H2The time, T
h=T
H2
Work as T
H2＜T
h≤ T
H3The time T
h=T
H3
Work as T
Hn-2＜T
h≤ T
Hn-1The time, T
h=T
Hn-1(3)
Work as T
h＞T
Hn-1The time, T
h=T
Hn
Wherein, T
H1＜T
H2＜T
H3＜...＜T
Hn
Certainly it will be appreciated by persons skilled in the art that the ambient temperature in each temperature section also can get other values, as the temperature minimum value in this temperature section, or the interior intermediate value of temperature section.
According to the temperature section after formula (3) refinement, the compressor rotary speed of each temperature section is calculated in convolution (1) and (2), obtains the compressor rotary speed table shown in the table 1.
Table 1
For the needs of the standardized designs of compressor rotary speed, the compressor rotary speed that computing obtains in the his-and-hers watches 1 is got the rated designs tachometer value.
At first, the rated designs rotating speed interval of compressor is set, judges the rated designs rotating speed interval at compressor rotary speed place, to obtain the compressor rated designs rotating speed under the corresponding rated designs rotating speed interval.
In one embodiment of the invention, compressor rated designs rotating speed is compressor rotary speed R
CompMaximum amount in the rated designs rotating speed interval at place is decided design speed.
As follows, the rated designs rotating speed interval endpoint of a plurality of compressors is set, comprise R
Comp1, R
Comp2, R
Comp3... R
Comps-1And R
Comps, wherein, R
Comp1＜R
Comp2＜R
Comp3＜...＜R
Comps-1＜R
CompsObtain the rated designs rotating speed interval of a plurality of compressors, i.e. R according to above-mentioned interval endpoint
Comp≤ R
Comp1, R
Comp1＜R
Comp≤ R
Comp2, R
Comp2＜R
Comp≤ R
Comp3, R
Comps-2＜R
Comp≤ R
Comps-1And R
Comp＞R
Comps-1
Work as R
Comp≤ R
Comp1The time, R
Comp=R
Comp1
Work as R
Comp1＜R
Comp≤ R
Comp2The time, R
Comp=R
Comp2
Work as R
Comp2＜R
Comp≤ R
Comp3The time, R
Comp=R
Comp3
…
Work as R
Comps-2＜R
Comp≤ R
Comps-1The time, R
Comp=R
Comps-1
Work as R
Comp＞R
Comps-1The time, R
Comp=R
Comp
Calculate the rated designs rotating speed of compressor by following formula, obtain varying environment temperature and refrigerating chamber compressor rated designs tachometer under the temperature is set, as shown in table 2, varying environment temperature and refrigerating chamber are provided with the compressor rated designs rotating speed under the temperature.
Table 2
Then, with compressor rated designs rotating speed according to being divided into a plurality of gears from high to low, wherein, R
Comp1＜R
Comp2＜R
Comp3＜...＜R
Comps-1＜R
Comps, gear increases successively.Thus, the correction to compressor rated designs rotating speed can meet the standardization requirement and be convenient to operation by adjusting the gear realization.
On the basis of the rated designs rotating speed of the compressor that aforementioned calculation obtains, according to chiller plant actual motion temperature compressor rated designs rotating speed is revised, comprise the steps:
The operation of measuring the refrigerating chamber of chiller plant respectively begins temperature T
FkWith Current Temperatures T
f, the operation of the cold storage room of chiller plant begins temperature T
RkCurrent Temperatures T with cold storage room
rWherein, Current Temperatures T
fWith Current Temperatures T
rBe respectively the room temperature of refrigerating chamber and cold storage room under the current state.
Begin temperature and Current Temperatures separately according to the above-mentioned operation that measures refrigerating chamber and cold storage room, calculate the Current Temperatures T of refrigerating chamber
fBegin temperature T with the operation of refrigerating chamber
FkThe temperature difference, as the first temperature difference T
fAnd the Current Temperatures T of cold storage room
rBegin temperature T with the operation of cold storage room
RkBetween the temperature difference, as the second temperature difference T
r
Utilize above-mentioned first temperature difference and second temperature difference that compressor rated designs rotating speed is revised, comprising:
The interval Δ T of correction of first temperature difference is set
f＜Δ T
F1, Δ T
F1≤ Δ T
f＜Δ T
F2Δ T
F2≤ Δ T
f＜Δ T
F3With Δ T
F3≤ Δ T
f, and the second temperature difference T
rReference value Δ T
R0
With the second temperature difference T
rReference value Δ T with second temperature difference
R0Compare, when judging the first temperature difference T
fThe first above-mentioned different temperature difference correction interval at place is revised compressor rated designs rotating speed respectively, and is as shown in table 3.
Table 3
Wherein, T
rBe cold storage room Current Temperatures, T
RkFor the cold storage room refrigerating operaton begins temperature, Δ T
rFor temperature of refrigerating chamber and refrigerating operaton begin the temperature difference of temperature, T
fBe refrigerating chamber Current Temperatures, T
FkBe refrigerating chamber refrigeration beginning temperature and Δ T
fBegin the temperature difference of temperature for freezer temperature and refrigerating operaton.Wherein, Δ T
F1＜Δ T
F2＜Δ T
F3
Shown in the table 3+0 ,+1 ,+2 and+3 respectively the expression, compressor rated designs rotating speed improve respectively 0 gear (not doing corrections), the raising 1 gear, 2 gears and 3 gears.
Begin temperature and Current Temperatures separately by the operation of comparing refrigerating chamber and cold storage room respectively, thereby can feed back the variation of the actual motion state of chiller plant in real time, so that described compressor rated designs rotating speed is revised by temperature difference variable.
Particularly, when chiller plant is in fast cold pattern, improve the rated designs rotating speed of compressor.Thus, by improving the rated designs rotating speed of compressor, chiller plant will reach fast cold state, refrigerating efficiency height faster.
In the present embodiment, the rated designs rotating speed with compressor improves a gear (+1).Certainly the rated designs rotating speed that it will be appreciated by persons skilled in the art that compressor can improve a plurality of gears, also falls into protection scope of the present invention.
When chiller plant was in the quick-frozen pattern, the rated designs rotating speed of revising compressor was a maximum speed.Thus, be maximum speed by the rated designs rotating speed that improves compressor, chiller plant will reach the quick-frozen state faster, and cooling time is short, the refrigerating efficiency height.
In one embodiment of the invention, chiller plant can be frequency conversion refrigerator.Certainly it will be appreciated by persons skilled in the art that when chiller plant is other chiller plants such as refrigerator-freezer, also fall into protection scope of the present invention.
Method for controlling frequency conversion according to the embodiment of the invention, obtain compressor rotary speed by the ambient temperature of introducing chiller plant and the temperature computation that is provided with of refrigerating chamber, thereby the rotating speed control that can make compressor is done to such an extent that applicability maximizes, promptly consider comprehensively chiller plant the varying environment temperature with temperature conditions is set under different demands, shorten cooling time, improve refrigerating efficiency.
Below in conjunction with the frequency-converting control device of Fig. 2 description according to the embodiment of the invention.
As shown in Figure 2, the frequency-converting control device 200 of the embodiment of the invention comprises operation panel 210, temperature-measuring module 220, temperature transducer 230 and control module 240.Wherein, operation panel 210, temperature-measuring module 220 and temperature transducer 230 link to each other with control module 240 respectively.
Particularly, the user is provided with temperature setting by the benchmark that is positioned at 210 pairs of temperature to cold storage room and refrigerating chamber of operation panel, reference ambient temperature and refrigerating chamber on the chiller plant panel.Temperature-measuring module 220 is measured the ambient temperature of chiller plant.Temperature transducer 230 comprises freezer temperature sensor 231 and refrigerator temperature sensor 232, and wherein freezer temperature sensor 231 is positioned at refrigerating chamber, detects the Current Temperatures in the refrigerating chamber; Refrigerator temperature sensor 232 is positioned at cold storage room, detects the Current Temperatures in the cold storage room.The temperature value that control module 240 receives from aforesaid operations panel 210, temperature-measuring module 220 and temperature transducer 230, and calculate compressor rotary speed.
Work as T
h≤ T
H0The time, R
Comp=(T
h/ T
H0)
X1* (T
Fs/ T
Fs0)
Y1* R
Comp0
Work as T
h＞T
H0The time, R
Comp=(T
h/ T
H0)
X2* (T
Fs/ T
Fs0)
Y2* R
Comp0,
Wherein, T
hBe ambient temperature, T
H0Be reference ambient temperature, T
FsBe the temperature that is provided with of refrigerating chamber, T
Fs0For the refrigerating chamber benchmark is provided with temperature, R
CompBe compressor rotary speed, R
Comp0Be compressor reference design rotating speed, x1, x2, y1, y2 are correction factor and are constant.
After calculating compressor rated designs rotating speed, control module 240 is further revised compressor rated designs rotating speed.Control module 240 receives the Current Temperatures that begins temperature, refrigerating chamber from the operation of the refrigerating chamber of temperature transducer 230, and the operation of cold storage room begins the Current Temperatures of temperature and cold storage room.The operation that the operation of calculating the Current Temperatures of refrigerating chamber and refrigerating chamber according to the said temperature value begins the Current Temperatures of first temperature difference of temperature and cold storage room and cold storage room begins second temperature difference of temperature.Control module 240 is revised compressor rated designs rotating speed according to above-mentioned first temperature difference and second temperature difference.
Particularly, control module utilizes first temperature difference and second temperature difference that compressor rated designs rotating speed is revised, and also comprises: the correction interval of first temperature difference and the reference value of described second temperature difference are set; The reference value of second temperature difference and second temperature difference is compared, and judge the correction interval of first temperature difference at first temperature difference place, so that compressor rated designs rotating speed is revised.
Frequency-converting control device according to the embodiment of the invention, utilize the temperature computation that is provided with of ambient temperature and refrigerating chamber to obtain compressor rotary speed, thereby the rotating speed control that can make compressor is done to such an extent that applicability maximizes, promptly consider comprehensively the varying environment temperature with temperature conditions is set under different demands, shorten cooling time, improve refrigerating efficiency.
Further aspect of the present invention has also proposed a kind of chiller plant, comprises body and frequency-converting control device.Wherein, frequency-converting control device can be the frequency-converting control device of describing according to the above embodiment of the present invention 200.Chiller plant according to the embodiment of the invention, utilize the ambient temperature of chiller plant and the temperature computation that is provided with of refrigerating chamber to obtain compressor rotary speed, thereby the rotating speed control that can make compressor is done to such an extent that applicability maximizes, promptly consider comprehensively chiller plant the varying environment temperature with temperature conditions is set under different demands, shorten cooling time, improve refrigerating efficiency.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiments.
Claims (12)
1. a method for controlling frequency conversion is characterized in that, described method for controlling frequency conversion comprises the steps:
Measures ambient temperature, and obtain the temperature that is provided with of refrigerating chamber;
The benchmark that reference ambient temperature and refrigerating chamber are set is provided with temperature; With
Utilize the benchmark of described reference ambient temperature, refrigerating chamber that the temperature that is provided with of temperature, ambient temperature and refrigerating chamber is set, calculate compressor rotary speed.
2. method for controlling frequency conversion as claimed in claim 1 is characterized in that, described calculating compressor rotary speed also comprises:
Described ambient temperature and reference ambient temperature are compared, calculate the rotating speed of compressor respectively according to comparative result,
Work as T
h≤ T
H0The time, R
Comp=(T
h/ T
H0)
X1* (T
Fs/ T
Fs0)
Y1* R
Comp0
Work as T
h＞T
H0The time, R
Comp=(T
h/ T
H0)
X2* (T
Fs/ T
Fs0)
Y2* R
Comp0,
Wherein, T
hBe ambient temperature, T
H0Be reference ambient temperature, T
FsBe the temperature that is provided with of refrigerating chamber, T
Fs0For the refrigerating chamber benchmark is provided with temperature, R
CompBe compressor rotary speed, R
Comp0Be compressor reference design rotating speed, x1, x2, y1, y2 are correction factor and are constant.
3. method for controlling frequency conversion as claimed in claim 2 is characterized in that, calculates compressor rated designs rotating speed according to described compressor rotary speed, comprising:
The rated designs rotating speed interval of compressor is set;
Judge the rated designs rotating speed interval at described compressor rotary speed place, obtaining the compressor rated designs rotating speed under the corresponding rated designs rotating speed interval,
Wherein, the maximum amount in the described compressor rated designs rotating speed rated designs rotating speed interval that is described compressor rotary speed place is decided design speed.
4. method for controlling frequency conversion as claimed in claim 3 is characterized in that, after the described calculating compressor rated designs rotating speed, described compressor rated designs rotating speed is revised, and comprises the steps:
The operation of measuring described refrigerating chamber begins the Current Temperatures of temperature, described refrigerating chamber, and the operation of described cold storage room begins the Current Temperatures of temperature and described cold storage room;
Calculate first temperature difference and second temperature difference, wherein, the Current Temperatures that described first temperature difference is described refrigerating chamber and the operation of described refrigerating chamber begin the temperature difference amount of temperature, and the Current Temperatures that described second temperature difference is described cold storage room and the operation of described cold storage room begin the temperature difference amount between the temperature; With
According to described first temperature difference and second temperature difference described compressor rated designs rotating speed is revised.
5. method for controlling frequency conversion as claimed in claim 4 is characterized in that, utilizes described first temperature difference and second temperature difference that compressor rated designs rotating speed is revised, and also comprises:
The correction interval of described first temperature difference and the reference value of described second temperature difference are set;
The reference value of described second temperature difference and described second temperature difference is compared, and judge the correction interval of first temperature difference at described first temperature difference place, so that described compressor rated designs rotating speed is revised.
6. method for controlling frequency conversion as claimed in claim 5 is characterized in that,
During the cold pattern of speed, improve the rated designs rotating speed of described compressor;
During the quick-frozen pattern, the rated designs rotating speed of revising described compressor is a maximum speed.
7. a frequency-converting control device is characterized in that, comprising:
Operation panel, the user is provided with temperature setting by described operation panel to the benchmark of temperature, reference ambient temperature and the refrigerating chamber of cold storage room and refrigerating chamber;
Temperature-measuring module is used for measures ambient temperature;
Temperature transducer, described temperature transducer comprises freezer temperature sensor and refrigerator temperature sensor, described freezer temperature sensor is positioned at described refrigerating chamber, be used to detect the current temperature value of described refrigerating chamber, described refrigerator temperature sensor is positioned at described cold storage room, is used to detect the current temperature value of described cold storage room; With
Control module, described control module utilize the benchmark of described reference ambient temperature, refrigerating chamber that the temperature that is provided with of temperature, ambient temperature and refrigerating chamber is set, and calculate compressor rotary speed.
8. frequency-converting control device as claimed in claim 7 is characterized in that, described control module is calculated compressor rotary speed by following formula,
Work as T
h≤ T
H0The time, R
Comp=(T
h/ T
H0)
X1* (T
Fs/ T
Fs0)
Y1* R
Comp0
Work as T
h＞T
H0The time, R
Comp=(T
h/ T
H0)
X2* (T
Fs/ T
Fs0)
Y2* R
Comp0,
Wherein, T
hBe ambient temperature, T
H0Be reference ambient temperature, T
FsBe the temperature that is provided with of refrigerating chamber, T
Fs0For the refrigerating chamber benchmark is provided with temperature, R
CompBe compressor rotary speed, R
Comp0Be compressor reference design rotating speed, x1, x2, y1, y2 are correction factor and are constant.
9. frequency-converting control device as claimed in claim 8, it is characterized in that, described control module is by being provided with the rated designs rotating speed interval of compressor, to judge the rated designs rotating speed interval at described compressor rotary speed place, and obtain compressor rated designs rotating speed under the corresponding rated designs rotating speed interval
Wherein, the maximum amount in the described compressor rated designs rotating speed rated designs rotating speed interval that is described compressor rotary speed place is decided design speed.
10. frequency-converting control device as claimed in claim 9 is characterized in that, described control module is revised described compressor rated designs rotating speed, comprising:
The operation of the described refrigerating chamber of described temperature sensor measurement begins the Current Temperatures of temperature, described refrigerating chamber, and the operation of described cold storage room begins the Current Temperatures of temperature and described cold storage room;
Described control module is calculated first temperature difference and second temperature difference according to the temperature value from described temperature transducer, wherein, the Current Temperatures that described first temperature difference is described refrigerating chamber and the operation of described refrigerating chamber begin the temperature difference of temperature, and the Current Temperatures that described second temperature difference is described cold storage room and the operation of described cold storage room begin the temperature difference between the temperature; With according to described first temperature difference and second temperature difference described compressor rated designs rotating speed is revised.
11. frequency-converting control device as claimed in claim 10, it is characterized in that, described control module is by the correction interval of first temperature difference of setting and the reference value of second temperature difference, the reference value of described second temperature difference and described second temperature difference is compared, and judge the correction interval of first temperature difference at described first temperature difference place, so that described compressor rated designs rotating speed is revised.
12. a chiller plant is characterized in that, comprising:
Body and
As each described frequency-converting control device among the claim 7-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010298763.0A CN101963149B (en) | 2010-09-29 | 2010-09-29 | Frequency conversion control method and device as well as refrigeration equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010298763.0A CN101963149B (en) | 2010-09-29 | 2010-09-29 | Frequency conversion control method and device as well as refrigeration equipment with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101963149A true CN101963149A (en) | 2011-02-02 |
| CN101963149B CN101963149B (en) | 2014-10-01 |
Family
ID=43516168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010298763.0A Active CN101963149B (en) | 2010-09-29 | 2010-09-29 | Frequency conversion control method and device as well as refrigeration equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101963149B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997610A (en) * | 2012-12-31 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigeration plant control method |
| CN104847639A (en) * | 2014-06-25 | 2015-08-19 | 北汽福田汽车股份有限公司 | Measurement and control system and measurement and control method for electric compressor |
| CN109307401A (en) * | 2017-07-28 | 2019-02-05 | 合肥美的电冰箱有限公司 | Refrigeration for refrigerator amount control method, device and refrigerator |
| CN109357436A (en) * | 2018-10-18 | 2019-02-19 | 佛山市顺德区和而泰电子科技有限公司 | Frequency conversion heat pump control method |
| CN113503664A (en) * | 2021-07-23 | 2021-10-15 | 珠海格力电器股份有限公司 | Control method of variable frequency compressor and refrigeration appliance |
| US11168917B2 (en) | 2017-10-19 | 2021-11-09 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air conditioner, control method thereof, control device thereof, and computer-readable storage medium |
| CN114838555A (en) * | 2022-04-11 | 2022-08-02 | 合肥朗驰工业设计有限公司 | Control method for preventing side plate of refrigerator from being scalded |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101895A (en) * | 1992-09-18 | 1994-04-12 | Fujitsu General Ltd | Inverter controller for air-conditioner |
| JPH07174453A (en) * | 1991-06-17 | 1995-07-14 | Matsushita Refrig Co Ltd | Refrigerator |
| US20030131617A1 (en) * | 2000-01-25 | 2003-07-17 | Eugen Schmid | Refrigerating appliance comprising a refrigerating compartment, a cold storage compartment and a freezer compartment |
| CN1598428A (en) * | 2004-09-09 | 2005-03-23 | 贵州汇诚科技有限公司 | Method for self-adaptive optimizing controlling cold water system of central air conditioner and its apparatus |
| CN1740721A (en) * | 2005-09-13 | 2006-03-01 | 海信集团有限公司 | Variable frequency refrigerator and control method thereof |
| CN1743775A (en) * | 2005-09-23 | 2006-03-08 | 海信集团有限公司 | Air-cooled variable frequency refrigerator and its control method |
| CN101556101A (en) * | 2009-04-03 | 2009-10-14 | 海信科龙电器股份有限公司 | Control device of frequency convertible refrigerator and control method thereof |
-
2010
- 2010-09-29 CN CN201010298763.0A patent/CN101963149B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07174453A (en) * | 1991-06-17 | 1995-07-14 | Matsushita Refrig Co Ltd | Refrigerator |
| JPH06101895A (en) * | 1992-09-18 | 1994-04-12 | Fujitsu General Ltd | Inverter controller for air-conditioner |
| US20030131617A1 (en) * | 2000-01-25 | 2003-07-17 | Eugen Schmid | Refrigerating appliance comprising a refrigerating compartment, a cold storage compartment and a freezer compartment |
| CN1598428A (en) * | 2004-09-09 | 2005-03-23 | 贵州汇诚科技有限公司 | Method for self-adaptive optimizing controlling cold water system of central air conditioner and its apparatus |
| CN1740721A (en) * | 2005-09-13 | 2006-03-01 | 海信集团有限公司 | Variable frequency refrigerator and control method thereof |
| CN1743775A (en) * | 2005-09-23 | 2006-03-08 | 海信集团有限公司 | Air-cooled variable frequency refrigerator and its control method |
| CN101556101A (en) * | 2009-04-03 | 2009-10-14 | 海信科龙电器股份有限公司 | Control device of frequency convertible refrigerator and control method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997610A (en) * | 2012-12-31 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigeration plant control method |
| CN102997610B (en) * | 2012-12-31 | 2015-01-21 | 合肥美的电冰箱有限公司 | Refrigeration plant control method |
| CN104847639A (en) * | 2014-06-25 | 2015-08-19 | 北汽福田汽车股份有限公司 | Measurement and control system and measurement and control method for electric compressor |
| CN109307401A (en) * | 2017-07-28 | 2019-02-05 | 合肥美的电冰箱有限公司 | Refrigeration for refrigerator amount control method, device and refrigerator |
| CN109307401B (en) * | 2017-07-28 | 2020-08-04 | 合肥美的电冰箱有限公司 | Refrigerator refrigerating capacity control method and device and refrigerator |
| US11168917B2 (en) | 2017-10-19 | 2021-11-09 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air conditioner, control method thereof, control device thereof, and computer-readable storage medium |
| CN109357436A (en) * | 2018-10-18 | 2019-02-19 | 佛山市顺德区和而泰电子科技有限公司 | Frequency conversion heat pump control method |
| CN113503664A (en) * | 2021-07-23 | 2021-10-15 | 珠海格力电器股份有限公司 | Control method of variable frequency compressor and refrigeration appliance |
| CN114838555A (en) * | 2022-04-11 | 2022-08-02 | 合肥朗驰工业设计有限公司 | Control method for preventing side plate of refrigerator from being scalded |
| CN114838555B (en) * | 2022-04-11 | 2024-08-23 | 安徽蓝界智能家电有限公司 | Control method for preventing refrigerator side plate from being scalded |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101963149B (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101963149B (en) | Frequency conversion control method and device as well as refrigeration equipment with same | |
| CN106871364B (en) | Method for controlling outlet water temperature of cooling tower of central air-conditioning system | |
| CN106369930B (en) | A kind of refrigerator method for controlling frequency conversion | |
| CN104633862B (en) | The control method of electric expansion valve during a kind of refrigerating of convertible frequency air conditioner operation | |
| CN104633857B (en) | Air conditioner energy-saving optimization control method and device | |
| CN107084592B (en) | A kind of wind cooling refrigerator method for controlling frequency conversion and its refrigerator | |
| CN102506536B (en) | Air indirect cooling refrigerator and temperature control method thereof | |
| CN103776234A (en) | Refrigerator frequency conversion control method and application thereof | |
| CN102997610B (en) | Refrigeration plant control method | |
| CN102536767B (en) | Compressor staring and stopping control method for water-cooling compressor set with compressors | |
| US20100024455A1 (en) | Dynamic superheat control for high efficiency refrigeration system | |
| CN102997609A (en) | Frequency converting control method for refrigerator | |
| CN104279805A (en) | Method for controlling running of water-cooled screw-type refrigerating unit | |
| CN106640655B (en) | The association's prosecutor method and fluid machinery of fluid machinery rotating speed and itself capacity adjusting mechanism | |
| CN113739341A (en) | Air conditioner comfort control method and device, air conditioner and readable storage medium | |
| CN113701321A (en) | Energy-saving frequency conversion control method for central air-conditioning water pump | |
| CN103017429A (en) | High-precision fast control method for variable-frequency industrial water chiller | |
| CN114034155A (en) | Method for calculating ring temperature and controlling rotating speed of compressor | |
| CN108800467A (en) | Control method, device and the air-conditioning with it of air-conditioning | |
| CN101403556A (en) | Energy regulation control method of dual-system screw type water chilling unit | |
| CN104713201A (en) | Control method for operation frequency of variable-frequency air conditioning unit | |
| CN204987368U (en) | Refrigerated water pump package energy -saving control system | |
| JP6301784B2 (en) | CONTROL DEVICE USED FOR HEAT SOURCE SYSTEM AND HEAT SOURCE SYSTEM HAVING THE CONTROL DEVICE | |
| CN108758977A (en) | Control method, device and the air-conditioning with it of air-conditioning | |
| CN113739350B (en) | Low-temperature heating frequency conversion control method and device, storage medium and 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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant after: Hefei Midea Refrigerator Co., Ltd. Applicant after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant before: Hefei Media Rongshida Refrigerator Co., Ltd. Applicant before: Hefei Hualing Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. TO: HEFEI MIDEA REFRIGERATORCO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |