CN102261717B - Method and device for controlling air conditioner, and air conditioner - Google Patents
Method and device for controlling air conditioner, and air conditioner Download PDFInfo
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Abstract
The invention provides a method and a device for controlling an air conditioner, and the air conditioner. The method for controlling the air conditioner is characterized by comprising the following steps of: s1, determining a power-on average temperature Tm of the air conditioner; s2, calculating the average load of reserved rooms according to the Tm; s3, calculating a rated cooling or heating frequency point, an intermediate cooling or heating frequency point, a frequency point corresponding to the average load and a maximum cooling or heating frequency point of the air conditioner under the Tm; s4, determining curved lines of the output capacity of the air conditioner and the frequency and curved lines of the frequency and the energy efficiency under the power-on average temperature T, based on the frequency points; s5, calculating the optimal frequency section of the energy-to-efficiency ratio of the air conditioner according to the curved lines; and s6, controlling the air conditioner to work at the optimal frequency section of the energy-to-efficiency ratio by a controller of the air conditioner. By means of the method and the device disclosed by the invention, the power consumption of the air conditioner can be reduced.
Description
Technical field
The present invention relates to field of air conditioning, more specifically, relate to a kind of air-conditioner control method and device, air-conditioner.
Background technology
Along with the development of technology and the raising of people's living standard, people are more and more higher to the demand of air-conditioner, but the problem that the air-conditioner power dissipation ratio of generation is larger thereupon is also more and more serious.
Existing convertible frequency air-conditioner does not consider that the difference of different regions needs or the use habit of different regions is different, thereby most of air-conditioning can't operate on the frequency band of system's optimum efficiency, is unfavorable for energy-conservation.
Higher and be difficult to adapt to the problem of different regions use habit for the power dissipation ratio of air-conditioner in the correlation technique, effective solution is not yet proposed at present.
Summary of the invention
The present invention aims to provide a kind of air-conditioner control method and device, air-conditioner, and it is higher and be difficult to adapt to the problems such as different regions use habit to solve the power dissipation ratio of air-conditioner.
According to an aspect of the present invention, provide a kind of air-conditioner control method.The method comprises: step s1: the start average temperature tm of determining air-conditioner; Step s2: calculate the average load of reservation according to the start average temperature tm; Step s3: calculate the specified refrigeration of air-conditioner under the start average temperature tm or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point; Step s4: based on specified refrigeration or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under the start average temperature tm; Step s5: according to the Energy Efficiency Ratio optimum frequency section of air-conditioning fan-out capability-frequency curve, frequency-efficiency curve calculation air-conditioner; Step s6: the controller control air-conditioner of air-conditioner is worked in Energy Efficiency Ratio optimum frequency section.
Further, the start average temperature tm is a year start average temperature tm, adopts following formula to calculate a year start average temperature tm:
Wherein, nj represents the available machine time, and tj represents turn-on temperature.
Further, the average load according to start average temperature tm calculating reservation may further comprise the steps: S21: space cooling load or the room thermic load of calculating reservation; S22: calculate correction factor, wherein, correction factor is the ratio of 1+ transition energy consumption, the energy consumption of the energy consumption of the ratio=transition period of transition energy consumption/total period; S23: according to the average load of space cooling load or room thermic load and correction factor calculating reservation.
Further, calculate the specified refrigeration of air-conditioner or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and comprise: S31: determine with reference to the fan-out capability-frequency curve of type under Tm; S32: determine corresponding compressor frequency point according to specified refrigeration or heating capacity, middle refrigeration or heating capacity, average load, maximum refrigeration or heating capacity; S33: carry out air-conditioner system coupling with the frequency in the Range compress unit frequency point preset range, the Frequency point that Energy Efficiency Ratio is the highest is decided to be specified refrigeration or heats Frequency point, middle refrigeration or heat Frequency point, maximum refrigeration or heat Frequency point.
Further, determine to comprise at the fan-out capability-frequency curve under the Tm with reference to type: S311: determine with reference to each Frequency point of type at different temperature corresponding refrigeration or heating capacity; S312: determine refrigeration or heating capacity with reference to each Frequency point correspondence under Tm of type; S313: determine with reference to the air-conditioning fan-out capability-frequency curve of type under Tm.
Further, maximum refrigeration or heating capacity obtain by following steps: S321: the design temperature of determining operation of air conditioner; S322: determine that room temperature reaches the time of design temperature; S323: reach the time of design temperature and calculate maximum refrigeration or heating capacity from the air institute chilling requirement that original state is down to design temperature room total capacity according to space cooling load or room thermic load, design temperature, room temperature.
Further, store the optimum frequency section in a plurality of rooms in air-conditioner, wherein, a plurality of rooms are a plurality of rooms of different regions.
According to another aspect of the present invention, provide a kind of control device of air-conditioner, this device comprises: determination module, for the start average temperature tm of determining air-conditioner; The first computing module calculates the average load of reservation according to the start average temperature tm; The second computing module calculates the specified refrigeration of air-conditioner under the start average temperature tm or heats Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point; The 3rd computing module is based on specified refrigeration or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under the start average temperature tm; The 4th computing module is according to the Energy Efficiency Ratio optimum frequency section of air-conditioning fan-out capability-frequency curve, frequency-efficiency curve calculation air-conditioner; Control module is used for the control air-conditioner and works in Energy Efficiency Ratio optimum frequency section.
Further, the second computing module comprises: first determines submodule, determines with reference to the fan-out capability-frequency curve of type under Tm; Second determines submodule, is used for determining corresponding compressor frequency point according to specified refrigeration or heating capacity, middle refrigeration or heating capacity, average load, maximum refrigeration or heating capacity; Set submodule, be used for carrying out the air-conditioner system coupling with the frequency in the Range compress unit frequency point preset range, the Frequency point that Energy Efficiency Ratio is the highest is decided to be specified refrigeration or heats Frequency point, middle refrigeration or heat Frequency point, maximumly freeze or heat Frequency point.
According to another aspect of the present invention, provide a kind of air-conditioner, this air-conditioner has above-mentioned any air conditioner controlling device or arranges according to any above-mentioned method.
Because employing following methods: step s1: the start average temperature tm of determining air-conditioner; Step s2: calculate the average load of reservation according to the start average temperature tm; Step s3: calculate the specified refrigeration of air-conditioner under the start average temperature tm or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point; Step s4: based on specified refrigeration or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under the start average temperature tm; Step s5: according to the Energy Efficiency Ratio optimum frequency section of air-conditioning fan-out capability-frequency curve, frequency-efficiency curve calculation air-conditioner; Step s6: the controller of air-conditioner control air-conditioner is in the work of Energy Efficiency Ratio optimum frequency section, and it is higher and be difficult to adapt to the problem of the different use habits of different regions to have overcome the power dissipation ratio of air-conditioner, and then has reached the effect that reduces the power consumption of air-conditioner.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the air-conditioner control method of the embodiment of the invention;
Fig. 2 is according to the flow chart that calculates each Frequency point in the air-conditioner control method of the embodiment of the invention;
Fig. 3 is according to the air-conditioning fan-out capability-frequency curve chart under a certain type Tm of the air conditioner controlling device of the embodiment of the invention;
Fig. 4 is the frequency-efficiency curve diagram according to a certain typical room of the air conditioner controlling device of the embodiment of the invention;
Fig. 5 is the schematic diagram according to the air conditioner controlling device of the embodiment of the invention.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 1 is the flow chart according to the air-conditioner control method of the embodiment of the invention;
As shown in Figure 1, this air-conditioner control method comprises:
Step S102 determines the start average temperature tm of air-conditioner.Wherein, the start mean temperature can be the mean temperature of starting shooting in year.Below be described as an example of year start average temperature tm example.
Determine a year start average temperature tm according to Chinese room air conditioner use habit and available machine time distribution.(following all calculating as an example of cooling condition example, the calculation procedure of heating condition is identical with cooling condition, thereby repeats no more.)
With reference to the data that the large positive market survey Co., Ltd in Shanghai provides, the type area, for example the refrigeration available machine time in Beijing year distributes as follows:
Wherein, the annual turn-on temperature is calculated as follows:
Step S104 calculates the average load of reservation according to the start average temperature tm.
Take type area's typical room as example, it is cold to calculate space cooling load Q corresponding to the average turn-on temperature of year refrigeration.One bedroom, Beijing area for example, south orientation wall band window has the east orientation exterior wall, area 4m * 4m, high 3.2m, window ara 2.5m * 2m, 2 adults in the room, top layer.
Calculating parameter is as follows:
(1) outdoor dry-bulb temperature is 29.7 ℃, 26.1 ℃ of wet-bulb temperature, relative humidity 75%, enthalpy 81.25kJ/kg.26 ℃ of indoor design temperature dry bulbs, 21.16 ℃ of wet-bulb temperature, relative humidity 65%, enthalpy 61.61kJ/kg.
(2) roofing area 16m
2
(3) southern exterior wall area 4m * 3.2m-2.5m * 2m=7.8m
2
(4) the outer window ara 2.5m * 2m=5m in south
2, double window, the thick simple glass of 3mm, window frame of metal, 80% glass; Curtain in the light green color nylon taffeta.
(5) eastern exterior wall area 4m * 3.2m=13.2m
2
With reference to " HVAC ", " heating and ventilation and In Air Conditioning Design standard ", " design specification such as In Air Conditioning Design handbook, it is cold to calculate space cooling load Q.Space cooling load Q is cold, and the architectural exterior-protecting construction that comprises imports the refrigeration duty that indoor heat (heat that the heat that solar radiation enters and the room air temperature difference are imported into through building enclosure) forms into, the refrigeration duty that human-body radiating forms, the refrigeration duty that the lighting heat radiation forms, and the refrigeration duty of other equipment coolings formation.
Computational process is as follows in detail:
With reference to " heating and ventilation and In Air Conditioning Design standard ", temperature t when the summer air-conditioning outdoor air designs pursuing of day
τComputing formula is:
t
τ＝t
o.m+βΔt
d
Δt
d＝(t
o.s-t
o.m)/0.52
With reference to " the In Air Conditioning Design handbook is calculated mean daily temperature t outside the Beijing during Summer Time air conditioning chamber
O.mBe 28.6 ℃, the outdoor calculating dry-bulb temperature of summer air-conditioning t
O.sBe 33.2 ℃, β is outside air temperature change with time coefficient.
Can calculate the Beijing area by the time temperature be following table:
| Constantly | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| β | -0.35 | -0.38 | -0.42 | -0.45 | -0.47 | -0.41 | -0.28 | -0.12 |
| tτ | 25.5 | 25.24 | 24.88 | 24.62 | 24.44 | 24.97 | 26.12 | 27.5 4 |
| Constantly | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| β | 0.03 | 0.16 | 0.29 | 0.4 | 0.48 | 0.52 | 0.51 | 0.43 |
| tτ | 28.87 | 30.02 | 31.17 | 32.14 | 32.85 | 33.2 | 33.11 | 32.4 |
| Constantly | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| β | 0.39 | 0.28 | 0.14 | 0 | -0.1 | -0.17 | -0.23 | -0.26 |
| tτ | 32.05 | 31.08 | 29.84 | 28.6 | 27.72 | 27.1 | 26.57 | 26.3 |
Refrigeration duty when therefore Tm is 29.7 ℃ can be calculated with reference to the value of parameters in about 10:00 moment and the 19:00 moment " HVAC ".When for example parameters is got 19:00 and calculate.
The refrigeration duty that heat forms that gets by roof, metope can be calculated as follows:
Q
τ＝KF(t′
c(τ)-t
R)＝KFΔt W
t′
c(τ)＝(t
c(τ)+t
d)k
αk
ρ
In the following formula, t
C (τ)Be the duration of pursuing of exterior wall and roofing calculation of cooling load temperature, dissimilar the looking into according to " HVAC " appendix respectively of exterior wall and roofing got.t
RBe the indoor design temperature.Heat transfer coefficient correction value k
α=1.0, k
ρFor absorbing correction factor.Because be Beijing of living inly, so place correction value t
dValue is 0.
The III type is got on the roof, gets Coefficient K=0.91W/ (m
2K), roof area F=16m
2, the t on roof when checking in 19:00
C (τ)Be 49.9 ℃, k
ρValue is 0.94, so temperature difference t=(49.9-26) * 1*0.94.
South orientation exterior wall refrigeration duty,
Q
τ＝KFΔt
2
Metope is got the II type, gets Coefficient K=1.26W/ (m
2K), wall area F=7.8m
2, the t of Nan Qiang when checking in 19:00
C (τ)Be 34.4 ℃, k
ρValue is 0.97, temperature difference t
2=(34.4-26) * 1*0.97.
East orientation exterior wall refrigeration duty,
Q
τ＝KFΔt
3
Metope is got the II type, gets Coefficient K=1.26W/ (m
2K), wall area F=13.2m
2, the t of Dong Qiang when checking in 19:00
C (τ)Be 37.9 ℃, k
ρValue is 0.97, temperature difference t
2=(37.9-26) * 1*0.97.
South orientation window moment is conducted to get the refrigeration duty of thermosetting:
Q
c，τ＝c
WK
WA
W(t
c(τ)+t
d-t
R) W
Double-deck outside window glass Coefficient K=2.93W/ (m
2K), windowpane heat transfer coefficient correction value c
WCan check in from appendix is 1.2, t
C (τ)Be outside window glass cooling load temperature by duration, can check in when 19:00 is 30.8 ℃, window ara F=5m
2, the same, because be Beijing of living inly, so place correction value t
dValue is 0.
Glass gets the hot refrigeration duty that causes, interior screening is arranged during day:
Q＝C
LQ D
jmax C
c，sAw Ca
There is the windowpane cooling load coefficient of internal sunshade the North Area by duration C
LQValue when 19:00 is C
LQ=0.12, south orientation solar heat gain factor maximum D during 40 ° in latitude
Jmax=302W/m
2, comprehensive sunshading coefficient C
C, s=0.559, the area A w=5m of window
2, window effective area coefficient Ca=0.75.
Getting the refrigeration duty that the maximum heat radiation of human body causes is 300W, and getting the refrigeration duty that illuminating and heat radiating causes is 200W.
Comprehensive all refrigeration duty numerical value can draw the cold 1260W of being about of Beijing area typical room refrigeration duty Q under Tm at last.
After step S104 and S104, said method also comprises:
Step S106 calculates the specified refrigeration of air-conditioner under the start average temperature tm or heats Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point.
Step S108 is based on specified refrigeration or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under the start average temperature tm.
Fig. 2 is according to the flow chart that calculates each Frequency point in the air-conditioner control method of the embodiment of the invention.
Calculate the specified refrigeration of described air-conditioner or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and can may further comprise the steps:
Step S202: determine with reference to the fan-out capability-frequency curve of type under described Tm.
Step S204: determine corresponding compressor frequency point according to specified refrigeration or heating capacity, middle refrigeration or heating capacity, average load, maximum refrigeration or heating capacity.
Step S206: carry out the air-conditioner system coupling with the frequency of distance in the described compressor frequency point preset range, the Frequency point that Energy Efficiency Ratio is the highest be decided to be described specified refrigeration or heat Frequency point, described in the middle of refrigeration or heat Frequency point, describedly maximumly freeze or heat Frequency point.
Determining of specified refrigeration Frequency point, example is as follows:
By patent " air-conditioner and control method thereof and device " as can be known, the parameters such as air-conditioning fan-out capability QC and outdoor temperature Tw, room indoor temperature Tn, compressor frequency f are closely related, are the ternary functional relations of a more complicated, can be expressed as: QC=F (f, Tw, Tn).
Can set up by test the database of QC and f relation, determine that each frequency f at refrigerating capacity QC corresponding to different temperature, is stored in the air-conditioner controller memory cell, re-use interpolation method and just can obtain comparatively exactly refrigerating capacity under each state.
By the database of the air-conditioning fan-out capability QC that stores in the air-conditioner controller data storage cell and compressor frequency f relation, can determine the frequency of compressor.
The type of design reference stores the database that air-conditioning fan-out capability QC and compressor frequency f concern under the various temperature.Can determine under Tm with reference to type air-conditioning fan-out capability---frequency curve, can match obtain curve equation according to this curve.
Fig. 3 is according to the air-conditioning fan-out capability-frequency curve chart under a certain type Tm of the air conditioner controlling device of the embodiment of the invention.
As shown in Figure 3, wherein the A point is frequency corresponding to a certain typical room annual load.
For example, it is 2600W that this Air-conditioner design requires specified refrigerating capacity, and SEER requires to reach 3.8 (4 grades of efficiencies).The formula that can be obtained its match by the air-conditioning fan-out capability-frequency curve of reference type under Tm is:
y＝7E-10x
3-3E-07x
2+0.0196x
In the formula, x is the air-conditioning fan-out capability, and unit is W; Y is frequency of air condition compressor or Frequency point, and unit is Hz.
Thus, can calculate that the specified refrigerating capacity of design is that frequency corresponding to 2600W is 61Hz under year start average temperature tm.
Consider that actual refrigerating capacity should be more than or equal to 95% of design in the production phase, therefore the rated frequency of estimation ± be debug system configuration between 54Hz～66Hz in 5%, determine to satisfy the target refrigerating capacity and the highest frequency of Energy Efficiency Ratio is specified refrigeration frequency.
Middle refrigeration Frequency point determine that example is as follows:
The Energy Efficiency Ratio of middle refrigeration is very large on the impact of SEER, refrigeration frequency and then definite frequency-efficiency curve in the middle of therefore needing to determine.
Fig. 4 is the frequency-efficiency curve diagram according to a certain typical room of the air conditioner controlling device of the embodiment of the invention.
As shown in Figure 4, wherein AB section efficient is the optimum efficiency frequency band.
According to the requirement of GB, middle refrigerating capacity must 1/2 specified refrigerating capacity ± 100W in, so the middle refrigerating capacity in this example must be between 1200～1400W.With reference to above-mentioned with reference to the air-conditioning fan-out capability-frequency curve under the type Tm, can calculate corresponding middle refrigeration frequency is 24Hz～29Hz.
Debug system configuration between 24Hz～29Hz determines to satisfy the target refrigerating capacity and the highest frequency of Energy Efficiency Ratio is specified refrigeration frequency.
Calculate frequency corresponding to average load, example is as follows:
This example is with reference to above-mentioned air-conditioning fan-out capability-frequency curve fitting formula, and corresponding Frequency point is 26Hz when calculating the cold 1260W of being about of year start average load Q.Consider the impact of transition load, increase correction factor k.The energy consumption of transition period drew with the ratio calculation of total period energy consumption when correction factor can tune to open machine and is cooled to design temperature according to typical room environmental simulation test chamber hollow.For example total available machine time is got 6h, and certain start transition energy consumption that records with reference to air-conditioning and the power consumption values of total period see the following form under different ring temperature.
| 30 ℃ of ring temperature | 29 ℃ of ring temperature | 27 ℃ of ring temperature | |
| The energy consumption kWh of transition period | 0.16 | 0.102 | 0.049 |
| The energy consumption kWh of total period | 2.456 | 2.354 | 1.458 |
| The ratio k Wh of transition energy consumption | 0.065, about 0.07 | 0.043 | 0.034 |
Remarks: the energy consumption of the energy consumption of the ratio=transition period of transition energy consumption/total period
The Practical Calculation of space cooling load will increase the influence factor of transition load in total start energy consumption when encircling warm 30 ℃ in this example, therefore, get 1.07 times of cold estimated values of space cooling load Q and will carry out following calculating.
Cold 1260 * the 107%=1350W that gets of space cooling load Q, can calculate thus Frequency point corresponding to average load is 28Hz.
Step S110 is according to the Energy Efficiency Ratio optimum frequency section of air-conditioning fan-out capability-frequency curve, frequency-efficiency curve calculation air-conditioner.
Define this Frequency point 28Hz 90%～110% for this type refrigeration efficiency than optimum frequency section, namely 25Hz～31Hz is Energy Efficiency Ratio optimum frequency section.Debug system in 25Hz～31Hz scope determines that the highest point of Energy Efficiency Ratio is the best Energy Efficiency Ratio Frequency point of this type.
Calculate frequency corresponding to the initial cooling load of typical room, example is as follows:
According to the space cooling load Q that calculates cold and original state be down to design temperature room total capacity the chilling requirement Q0 of air institute, estimate that room load reaches the time t balance of balance, can calculate air-conditioning fan-out capability QC.Formula is as follows:
Q0=m (h0-hs)=ρ air V Δ h
＝16×3.2×1.2×(81.25-61.61)＝1203.1kJ
Q is cold * t balance+Q0=QC * t balance
Require room temperature lowering to 26 ℃ of design temperatures from 29.7 ℃ of outdoor temperatures, press empirical value, temperature fall time 10min is medium cooling rate.Therefore getting the t balance is 10min, can calculate QC=3355W.
With reference to the formula of above-mentioned certain air-conditioning fan-out capability with reference to type-frequency curve match, can calculate corresponding frequency is 89Hz.Therefore can determine that the maximum refrigeration of this type frequency is 89Hz.Debug system is determined the best Energy Efficiency Ratio of this point.
Step S112, the controller control air-conditioner of air-conditioner is worked in Energy Efficiency Ratio optimum frequency section.
The debug system configuration, example is as follows:
Take intermediate frequency point, Energy Efficiency Ratio optimum frequency point (the best efficiency Frequency point of finally determining according to system matches in the optimum frequency section of namely being determined by annual LOAD FREQUENCY point), rated frequency point, peak frequency point, minimum frequency point as benchmark, determine under the mark condition and air-conditioning fan-out capability-frequency curve, frequency-efficiency curve and Energy Efficiency Ratio optimum frequency section under other temperature, and with these Parameter storages in air-conditioner controller.
Especially, the refrigerating capacity-frequency curve of the configurable a plurality of typical room of each type, frequency-efficiency curve and Energy Efficiency Ratio optimum frequency section.
In the above-described embodiments, will dispose corresponding refrigerating capacity-frequency curve, frequency-efficiency curve and Energy Efficiency Ratio optimum frequency section for type corresponding to different regions, and with the primary condition parameter of these parameters as Energy Saving Control.
In the above-described embodiments, by after obtaining the optimum frequency section, above-mentioned optimum frequency section can be stored in the controller of air-conditioner so that air-conditioner carries out work in the optimum frequency section after start.
According to the basic parameter of storage, system's running frequency preferentially is controlled in the frequency band of system's optimum efficiency, thereby the system running frequency of avoiding crosses significantly and depart from for a long time room load balance frequency point and move in inefficient side, thus the reduction power consumption.
Fig. 5 is the schematic diagram according to the air conditioner controlling device of the embodiment of the invention.
As shown in Figure 5, the air conditioner controlling device according to the embodiment of the invention comprises determination module 501, the first computing module 503, the second computing module 505, the 3rd computing module 507, the 4th computing module 509 and control module 511.
Determination module 501 is used for determining the start average temperature tm of air-conditioner; The first computing module 503 calculates the average load of reservation according to the start average temperature tm; The second computing module 505 calculates the specified refrigeration of air-conditioner under the start average temperature tms or heats Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point; The 3rd computing module 507 is based on specified refrigeration or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under the start average temperature tm; The 4th computing module 509 is according to the Energy Efficiency Ratio optimum frequency section of air-conditioning fan-out capability-frequency curve, frequency-efficiency curve calculation air-conditioner; Control module 511 is used for the control air-conditioner and works in Energy Efficiency Ratio optimum frequency section.
The second computing module 505 comprises: first determines submodule, is used for determining with reference to the fan-out capability-frequency curve of type under Tm; Second determines submodule, is used for determining corresponding compressor frequency point according to specified refrigeration or heating capacity, middle refrigeration or heating capacity, average load, maximum refrigeration or heating capacity; Set submodule, be used for carrying out the air-conditioner system coupling with the frequency in the Range compress unit frequency point preset range, the Frequency point that Energy Efficiency Ratio is the highest is decided to be specified refrigeration or heats Frequency point, middle refrigeration or heat Frequency point, maximumly freeze or heat Frequency point.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Owing to air-conditioner is operated on the optimum frequency, thereby can reduces significantly the power consumption of air-conditioner.
By the optimum frequency different according to different locales (for example, among the embodiment air-conditioner of same model being provided with the parameter of a plurality of typical room), can be so that air-conditioner adapt to the use habit of different regions, and then reduce better power consumption.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an air-conditioner control method is characterized in that, comprising:
Step s1: the start average temperature tm of determining air-conditioner;
Step s2: the average load of calculating reservation according to described start average temperature tm;
Step s3: calculate the specified refrigeration of described air-conditioner under the described start average temperature tm or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point;
Step s4: based on described specified refrigeration or heat Frequency point, described in the middle of refrigeration or heat Frequency point corresponding to Frequency point, described average load, described maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under described start average temperature tm;
Step s5: according to the Energy Efficiency Ratio optimum frequency section of described air-conditioning fan-out capability-frequency curve, described frequency-described air-conditioner of efficiency curve calculation;
Step s6: the controller of described air-conditioner is controlled described air-conditioner in the work of described Energy Efficiency Ratio optimum frequency section.
2. air-conditioner control method according to claim 1 is characterized in that, described start average temperature tm is a year start average temperature tm, adopts following formula to calculate described year start average temperature tm:
Wherein, described nj represents the available machine time, and described tj represents turn-on temperature.
3. air-conditioner control method according to claim 1 is characterized in that, the average load of calculating reservation according to described start average temperature tm may further comprise the steps:
S21: space cooling load or the room thermic load of calculating described reservation;
S22: calculate correction factor, wherein, described correction factor is the ratio of 1+ transition energy consumption, the energy consumption of the energy consumption of the ratio=transition period of described transition energy consumption/total period;
S23: calculate the average load of described reservation according to described space cooling load or described room thermic load and correction factor.
4. air-conditioner control method according to claim 1 is characterized in that, calculates the specified refrigeration of described air-conditioner or heat Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point to comprise:
S31: determine with reference to the fan-out capability-frequency curve of type under described Tm;
S32: determine corresponding compressor frequency point according to specified refrigeration or heating capacity, middle refrigeration or heating capacity, average load, maximum refrigeration or heating capacity;
S33: carry out the air-conditioner system coupling with the frequency of distance in the described compressor frequency point preset range, the Frequency point that Energy Efficiency Ratio is the highest be decided to be described specified refrigeration or heat Frequency point, described in the middle of refrigeration or heat Frequency point corresponding to Frequency point, described average load, describedly maximumly freeze or heat Frequency point.
5. air-conditioner control method according to claim 4 is characterized in that, determines to comprise at the fan-out capability-frequency curve under the Tm with reference to type:
S311: determine described with reference to each Frequency point of type at different temperature corresponding refrigeration or heating capacity;
S312: determine described each Frequency point with reference to type corresponding refrigeration or heating capacity under described Tm;
S313: determine described with reference to the air-conditioning fan-out capability-frequency curve of type under described Tm.
6. air-conditioner control method according to claim 4 is characterized in that, described maximum refrigeration or heating capacity obtain by following steps:
S321: the design temperature of determining operation of air conditioner;
S322: determine that room temperature reaches the time of design temperature;
S323: reach the time of design temperature and air institute's chilling requirement or the described maximum refrigeration of heat Calculation or the heating capacity of being down to or being increased to described design temperature room total capacity from original state according to described space cooling load or described room thermic load, described design temperature, described room temperature.
7. air-conditioner control method according to claim 1 is characterized in that, stores the optimum frequency section in a plurality of rooms in described air-conditioner, and wherein, described a plurality of rooms are a plurality of rooms of different regions.
8. an air conditioner controlling device is characterized in that, comprising:
Determination module is for the start average temperature tm of determining air-conditioner;
The first computing module calculates the average load of reservation according to described start average temperature tm;
The second computing module calculates the specified refrigeration of described air-conditioner under the described start average temperature tm or heats Frequency point, middle refrigeration or heat Frequency point, average load corresponding Frequency point, maximum refrigeration or heat Frequency point;
The 3rd computing module, based on described specified refrigeration or heat Frequency point, described in the middle of refrigeration or heat Frequency point corresponding to Frequency point, described average load, described maximum refrigeration or heat Frequency point and determine air-conditioning fan-out capability-frequency curve, frequency-efficiency curve under described start average temperature tm;
The 4th computing module is according to the Energy Efficiency Ratio optimum frequency section of described air-conditioning fan-out capability-frequency curve, described frequency-described air-conditioner of efficiency curve calculation;
Control module is used for controlling described air-conditioner in the work of described Energy Efficiency Ratio optimum frequency section.
9. air conditioner controlling device according to claim 8 is characterized in that, described the second computing module comprises:
First determines submodule, determines with reference to the fan-out capability-frequency curve of type under described Tm;
Second determines submodule, is used for determining corresponding compressor frequency point according to specified refrigeration or heating capacity, middle refrigeration or heating capacity, average load, maximum refrigeration or heating capacity;
Set submodule, be used for carrying out the air-conditioner system coupling with the frequency in the described compressor frequency point preset range of distance, the Frequency point that Energy Efficiency Ratio is the highest be decided to be described specified refrigeration or heat Frequency point, described in the middle of refrigeration or heat Frequency point corresponding to Frequency point, described average load, describedly maximumly freeze or heat Frequency point.
10. an air-conditioner is characterized in that, has claim 8 or 9 described air conditioner controlling devices.
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| CN 201010188379 CN102261717B (en) | 2010-05-24 | 2010-05-24 | Method and device for controlling air conditioner, and air conditioner |
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| CN 201010188379 CN102261717B (en) | 2010-05-24 | 2010-05-24 | Method and device for controlling air conditioner, and air conditioner |
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| CN110107994B (en) * | 2019-05-08 | 2020-04-17 | 珠海格力电器股份有限公司 | Indoor set temperature determination method and device, storage medium and air conditioner |
| CN110553351B (en) * | 2019-09-06 | 2020-08-11 | 珠海格力电器股份有限公司 | Optimization method of air conditioner equipment load rate and air conditioner cloud group control system |
| CN113449390B (en) * | 2020-03-27 | 2024-01-19 | 青岛海尔空调电子有限公司 | Air conditioner selection method, system and device |
| CN112393387A (en) * | 2020-11-13 | 2021-02-23 | 青岛海信日立空调系统有限公司 | Air conditioner and temperature correction method |
| CN112361473A (en) * | 2020-11-16 | 2021-02-12 | 南京天加环境科技有限公司 | Air conditioning system combining multi-split air conditioner and cold and hot water unit and control method thereof |
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