CN104964396A - Power consumption estimation method and device for PTC electrical heater in air conditioning system - Google Patents
Power consumption estimation method and device for PTC electrical heater in air conditioning system Download PDFInfo
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- CN104964396A CN104964396A CN201510408622.2A CN201510408622A CN104964396A CN 104964396 A CN104964396 A CN 104964396A CN 201510408622 A CN201510408622 A CN 201510408622A CN 104964396 A CN104964396 A CN 104964396A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
- F24F11/47—Responding to energy costs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a power consumption estimation method and device for a PTC electrical heater in an air conditioning system. The method comprises the following steps that multiple first variable parameters relevant to the operating power of the PTC electrical heater are correspondingly sampled one to one by multiple first sampling modules respectively, and filtering processing is performed on the first variable parameters to acquire multiple first input variables; modeling is performed on the operating power of the PTC electrical heater according to the first input variables to estimate an estimated value of the operating power of the PTC electrical heater; integral operation is performed on the estimated value of the operating power of the PTC electrical heater to acquire the power consumption of the PTC electrical heater. According to the embodiment of the power consumption estimation method, a current sampling circuit does not need to be additionally added, the operating power of the PTC is estimated through a mathematical modeling mode, therefore, the power consumption of the PTC electrical heater can be obtained according to the operating power, the cost is saved, and the competitiveness of air conditioners is improved.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly relate to electricity evaluation method and the device of PTC electric heater in a kind of air-conditioning system.
Background technology
In intelligent air condition, intelligent power and the management of power use are important functions, and the prerequisite of intelligent power and the management of power use detects the operate power of air-conditioning and electricity.At present, what the electric power detection of air-conditioning adopted is ammeter module, and ammeter module cost is high, only has on high-end air-conditioning products and just can use, and cannot promote the use of on common air-conditioning device, and intelligent power and the management of power use cannot comprehensively be applied.The major reason of air-conditioning power and electric power detection is wherein hindered to be that the power of PTC cannot obtain accurately.
PTC electric heater is applied in air-conditioning, effectively can increase the caloric value under air-conditioning heating pattern, improves the heating performance of air-conditioning.Therefore, PTC has been the standard configuration device in air-conditioning.Along with the awakening of energy-conserving and environment-protective consciousness, consumer becomes concern especially for the power consumption of household electrical appliance or operate power.PTC is the device that in air-conditioning, power consumption is larger, if the real time execution power of PTC can not accurately be known, air-conditioning power consumption in a heating mode just has no idea to obtain, only increase current sample link, but which adds the cost of air-conditioning, in household electric appliances with keen competition, increase cost not to be allowed to, therefore, how by existing hardware platform, accurately know that the operate power of PTC and power consumption remain a technical barrier not obtaining solving very well.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is the electricity evaluation method proposing PTC electric heater in a kind of air-conditioning system, without the need to additionally adding current sampling circuit, the operate power of PTC is estimated by the mode of mathematical modeling, thus the power consumption of PTC electric heater can be obtained according to this operate power, the method has saved cost, improves the competitiveness of air-conditioner.
Second object of the present invention is the electricity estimating device proposing PTC electric heater in a kind of air-conditioning system.
To achieve these goals, the electricity evaluation method of PTC electric heater in the air-conditioning system of first aspect present invention embodiment, comprise the following steps: by multiple first sampling module respectively one_to_one corresponding to sample multiple first variable parameters be associated with the operate power of described PTC electric heater, and filtering process is carried out respectively to obtain multiple first input variable to described multiple first variable parameter; According to described multiple first input variable, modeling is carried out to estimate the estimated value of the operate power of described PTC electric heater to the operate power of described PTC electric heater; Integral operation is carried out to obtain the electricity of described PTC electric heater to the estimated value of the operate power of described PTC electric heater.
According to the electricity evaluation method of PTC electric heater in the air-conditioning system of the embodiment of the present invention, do not need additionally to add current sampling circuit, only make use of existing sampling module, do not increase any hardware cost, the operate power of PTC electric heater is estimated by the mode of mathematical modeling, thus the power consumption of PTC electric heater can be obtained according to this operate power, the method has saved cost, improves the competitiveness of air-conditioner.
In one embodiment of the invention, also comprise: by multiple second sampling module respectively one_to_one corresponding to sample multiple second variable parameters be associated with the operate power of described PTC electric heater, and filtering process is carried out respectively to obtain multiple second input variable to described multiple second variable parameter; Obtain the deviation compensation amount of the operate power of described PTC electric heater according to described multiple second input variable, and the estimated value of the operate power of the described PTC electric heater that described deviation compensation amount is added to compensates correction with the estimated value of the operate power to described PTC electric heater.
In one embodiment of the invention, described multiple first variable parameter comprises the input voltage of the temperature of the indoor heat exchanger in described air-conditioning system, the power of blower fan and described PTC electric heater.
In one embodiment of the invention, the estimated value of the operate power of described PTC electric heater obtains according to following model assessment:
y＝f2(∑w2*f1(∑w1*u+b1)+b2)，
Wherein, u is described multiple first input variable, w1 is the parameter matrix of m*g, m is the number of the first input variable, and g is the parameter dimensions of model, and b1 is threshold value column matrix and dimension is g, w2 is line parameter matrix and dimension is g, b2 is one-parameter, and function f 1 () and f2 () are S type function, and y is the estimated value of the operate power of described PTC electric heater.
In one embodiment of the invention, described multiple second variable parameter comprises the angle of the wind guide strip of indoor set in indoor environment temperature and described air-conditioning system, and described deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T
1with the second input variable that A is corresponding with the angle of described indoor environment temperature and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
To achieve these goals, the electricity estimating device of PTC electric heater in the air-conditioning system of second aspect present invention embodiment, comprise: multiple first sampling module, to sample multiple first variable parameters be associated with the operate power of described PTC electric heater for one_to_one corresponding respectively; Multiple first filtration modules corresponding with described multiple first sampling module, described multiple first filtration module is used for carrying out filtering process respectively to obtain multiple first input variable to described multiple first variable parameter; Power estimation module, carries out modeling to estimate the estimated value of the operate power of described PTC electric heater according to described multiple first input variable to the operate power of described PTC electric heater; Integral operation module, the estimated value for the operate power to described PTC electric heater carries out integral operation to obtain the electricity of described PTC electric heater.
According to the electricity estimating device of PTC electric heater in the air-conditioning system of the embodiment of the present invention, do not need additionally to add current sampling circuit, only make use of existing sampling module, do not increase any hardware cost, Power estimation module estimates the operate power of PTC electric heater by the mode of mathematical modeling, thus integral operation module can obtain the power consumption of PTC electric heater according to this operate power, this device has saved cost, improves the competitiveness of air-conditioner.
In one embodiment of the invention, also comprise: multiple second sampling module, to sample multiple second variable parameters be associated with the operate power of described PTC electric heater for one_to_one corresponding respectively; Multiple second filtration modules corresponding with described multiple second sampling module, described multiple second filtration module is used for carrying out filtering process respectively to obtain multiple second input variable to described multiple second variable parameter; Compensation correction module, for obtaining the deviation compensation amount of the operate power of described PTC electric heater according to described multiple second input variable, and the estimated value of the operate power of the described PTC electric heater that described deviation compensation amount is added to compensates correction with the estimated value of the operate power to described PTC electric heater.
In one embodiment of the invention, described multiple first variable parameter comprises the input voltage of the temperature of the indoor heat exchanger in described air-conditioning system, the power of blower fan and described PTC electric heater.
In one embodiment of the invention, described Power estimation module is according to the estimated value of operate power obtaining described PTC electric heater with drag:
y＝f2(∑w2*f1(∑w1*u+b1)+b2)，
Wherein, u is described multiple first input variable, w1 is the parameter matrix of m*g, m is the number of the first input variable, and g is the parameter dimensions of model, and b1 is threshold value column matrix and dimension is g, w2 is line parameter matrix and dimension is g, b2 is one-parameter, and function f 1 () and f2 () are S type function, and y is the estimated value of the operate power of described PTC electric heater.
In one embodiment of the invention, described multiple second variable parameter comprises the angle of the wind guide strip of indoor set in indoor environment temperature and described air-conditioning system, and described compensation correction module obtains described deviation compensation amount according to following formula:
Wherein, α
1, α
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T
1with the second input variable that A is corresponding with the angle of described indoor environment temperature and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
Accompanying drawing explanation
Fig. 1 is the flow chart of the electricity evaluation method of PTC electric heater in air-conditioning system according to an embodiment of the invention;
Fig. 2 is the block diagram of the electricity estimating device of PTC electric heater in air-conditioning system according to an embodiment of the invention;
Fig. 3 is the block diagram of the electricity estimating device of PTC electric heater in air-conditioning system in accordance with another embodiment of the present invention.
Reference numeral:
Multiple first sampling module 10, multiple first filtration module 20, Power estimation module 30, integral operation module 40, multiple second sampling module 50, multiple second filtration module 60 and compensation correction module 70.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Fig. 1 is the flow chart of the electricity evaluation method of PTC electric heater in air-conditioning system according to an embodiment of the invention.As shown in Figure 1, the electricity evaluation method of PTC electric heater in the air-conditioning system of the embodiment of the present invention, comprises the following steps:
S1, by multiple first sampling module respectively one_to_one corresponding to sample multiple first variable parameters be associated with the operate power of PTC electric heater, and filtering process is carried out respectively to obtain multiple first input variable to multiple first variable parameter.
In one embodiment of the invention, multiple first variable parameter comprises the input voltage of the temperature of the indoor heat exchanger in air-conditioning system, the power of blower fan and PTC electric heater.
Particularly, multiple first sampling module is parallel, do not contact each other, multiple first sampling module respectively one_to_one corresponding is sampled multiple first variable parameters be associated with the operate power of PTC electric heater, is namely responsible for gathering the Main Factors data affecting PTC operate power.Then, by multiple first filtration modules corresponding with multiple first sampling module, filtering process is carried out (such as to multiple first variable parameter, filtering sampling noiset, exclusive PCR), to obtain multiple first input variable, wherein, the first filtration module can be firstorder filter or second order filter.
Wherein, multiple first sampling module is existing sampling module in air-conditioner, without the need to extra increase.
S2, carries out modeling to estimate the estimated value of the operate power of PTC electric heater according to multiple first input variable to the operate power of PTC electric heater.
In one embodiment of the invention, the estimated value of the operate power of PTC electric heater obtains according to following model assessment:
y＝f2(∑w2*f1(∑w1*u+b1)+b2)， (1)
Wherein, u is multiple first input variables, w1 is the parameter matrix of m*g, m is the number of the first input variable, and g is the parameter dimensions of model, and b1 is threshold value column matrix and dimension is g, w2 is line parameter matrix and dimension is g, b2 is one-parameter, and function f 1 () and f2 () are S type function, and y is the estimated value of the operate power of PTC electric heater.
Wherein, S type function and Sigmoid function, such as:
Below the impact of the first variable parameter on the operate power of PTC electric heater is described.
Particularly, multiple first variable parameter affects some primary variables of PTC electric heater actual motion power.Wherein, the temperature of indoor heat exchanger is the temperature near PTC electric heater, the temperature of indoor heat exchanger is larger, needed for PTC electric heater, caloric value is less, and namely the temperature of indoor heat exchanger is larger, and the operate power of PTC electric heater is less, otherwise, the operate power of PTC electric heater is larger, and the span of the temperature of indoor heat exchanger is [10 degrees Celsius, 80 degrees Celsius]; The power influences of blower fan is to the heat radiation of PTC electric heater, the power of blower fan is larger, the heat radiation of PTC electric heater is better, PTC electric heater wants holding temperature will send more heat, and namely the power of blower fan is larger, and the operate power of PTC electric heater is larger, otherwise, the operate power of PTC electric heater is less, and the span of the power P fan of blower fan is [2W, 30W]; The input voltage of PTC electric heater directly affects the heating power of PTC electric heater, and input voltage is larger, and the operate power of PTC electric heater is larger, otherwise, the operate power of PTC electric heater is less, and the span of the input voltage virtual value of PTC electric heater is [150V, 280V].
S3, carries out integral operation to obtain the electricity of PTC electric heater to the estimated value of the operate power of PTC electric heater.
Particularly, the estimated value of the operate power of estimated PTC electric heater is carried out integral operation, the power consumption of PTC electric heater can be obtained.
In one embodiment of the invention, in air-conditioning system, the electricity evaluation method of PTC electric heater also comprises: S4, by multiple second sampling module respectively one_to_one corresponding to sample multiple second variable parameters be associated with the operate power of PTC electric heater, and filtering process is carried out respectively to obtain multiple second input variable to multiple second variable parameter; S5, obtain the deviation compensation amount of the operate power of PTC electric heater, and the estimated value of the operate power of the PTC electric heater that deviation compensation amount is added to compensates correction with the estimated value of the operate power to PTC electric heater according to multiple second input variable.
Wherein, by multiple second sampling module respectively one_to_one corresponding to sample multiple second variable parameters be associated with the operate power of PTC electric heater, then filtering process is carried out (such as to multiple second variable parameter, filtering sampling noiset, exclusive PCR), to obtain multiple second input variable.
Particularly, the second variable parameter is the secondary cause of the operate power affecting PTC electric heater, the second variable parameter is taken into account, and can improve the precision of the estimated value of the operate power of PTC electric heater.Wherein, the expression formula of deviation compensation amount is: Δ P
pTC=ξ (u
m+1..., u
n), u
m+1..., u
nbe multiple second input variable, ξ () is compensation correction function.
Wherein, the principal element (the first variable parameter) of the operate power affecting PTC electric heater, secondary cause (the second variable parameter) can be obtained by a large amount of experiments and concrete affect data.
In one embodiment of the invention, multiple second variable parameters comprise the angle of the wind guide strip of indoor set in indoor environment temperature and air-conditioning system, and deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1 and A is second input variable corresponding with the angle of indoor environment temperature and wind guide strip, Δ P
pTCfor deviation compensation amount.
Below the impact of the second variable parameter on the operate power of PTC electric heater is described.
Wherein, indoor environment temperature directly can affect the size of the temperature of indoor heat exchanger, thus affecting indirectly the operate power of PTC electric heater, indoor environment temperature is less, and the temperature of indoor heat exchanger also can diminish relatively, thus the operate power of PTC electric heater can become large, namely indoor environment temperature is less, the operate power of PTC electric heater is larger, otherwise the operate power of PTC electric heater is less, the span of indoor environment temperature is [5 DEG C, 20 DEG C].
The angle of wind guide strip has influence on the structure of air-conditioning duct outlet, when being in standard an angle of 90 degrees, air channel air output is maximum, dispels the heat best, 0 degree or 180 degree time, wind guide strip has blocked air outlet, and air channel air output is minimum, dispels the heat the poorest, namely the angle of wind guide strip is 90 degree time, the operate power of PTC electric heater is maximum relative to other angles, more departs from 90 degree, and the operate power of PTC electric heater is less.The span of the angle of wind guide strip is [0 degree, 90 degree] or [90 degree, 180 degree].
The electricity evaluation method of PTC electric heater in the air-conditioning system of the embodiment of the present invention, do not need additionally to add current sampling circuit, only make use of existing sampling module, do not increase any hardware cost, the operate power of PTC electric heater is estimated by the mode of mathematical modeling, thus the power consumption of PTC electric heater can be obtained according to this operate power, the method has saved cost, improves the competitiveness of air-conditioner.
In order to realize above-described embodiment, the invention allows for the electricity estimating device of PTC electric heater in a kind of air-conditioning system.
Fig. 2 is the block diagram of the electricity estimating device of PTC electric heater in air-conditioning system according to an embodiment of the invention.As shown in Figure 2, the electricity estimating device of PTC electric heater in the air-conditioning system of the embodiment of the present invention, comprising: multiple first sampling module 10, multiple first filtration module 20, Power estimation module 30 and integral operation module 40.
Multiple first sampling module 10 to be sampled multiple first variable parameters be associated with the operate power of PTC electric heater for one_to_one corresponding respectively.
In one embodiment of the invention, multiple first variable parameter comprises the input voltage of the temperature of the indoor heat exchanger in air-conditioning system, the power of blower fan and PTC electric heater.
Particularly, multiple first sampling module 10 is parallel, do not contact each other, multiple first sampling module 10 respectively one_to_one corresponding is sampled multiple first variable parameters be associated with the operate power of PTC electric heater, is namely responsible for gathering the Main Factors data affecting PTC operate power.
Wherein, multiple first sampling module 10 is existing sampling modules in air-conditioner, without the need to extra increase.
Multiple first filtration modules 20 corresponding with multiple first sampling module 10, multiple first filtration module 20 is for carrying out filtering process respectively to obtain multiple first input variable to multiple first variable parameter.
Particularly, by multiple first filtration modules 20 corresponding with multiple first sampling module 10, filtering process is carried out (such as to multiple first variable parameter, filtering sampling noiset, exclusive PCR), to obtain multiple first input variable, wherein, the first filtration module 20 can be firstorder filter or second order filter.
Power estimation module 30 carries out modeling to estimate the estimated value of the operate power of PTC electric heater according to multiple first input variable to the operate power of PTC electric heater.
In one embodiment of the invention, Power estimation module 30 is according to the estimated value of operate power obtaining PTC electric heater with drag:
y＝f2(∑w2*f1(∑w1*u+b1)+b2)， (1)
Wherein, u is multiple first input variables, w1 is the parameter matrix of m*g, m is the number of the first input variable, and g is the parameter dimensions of model, and b1 is threshold value column matrix and dimension is g, w2 is line parameter matrix and dimension is g, b2 is one-parameter, and function f 1 () and f2 () are S type function, and y is the estimated value of the operate power of PTC electric heater.
Wherein, S type function and Sigmoid function, such as:
Below the impact of the first variable parameter on the operate power of PTC electric heater is described.
Particularly, multiple first variable parameter affects some primary variables of PTC electric heater actual motion power.Wherein, the temperature of indoor heat exchanger is the temperature near PTC electric heater, the temperature of indoor heat exchanger is larger, needed for PTC electric heater, caloric value is less, and namely the temperature of indoor heat exchanger is larger, and the operate power of PTC electric heater is less, otherwise, the operate power of PTC electric heater is larger, and the span of the temperature of indoor heat exchanger is [10 degrees Celsius, 80 degrees Celsius]; The power influences of blower fan is to the heat radiation of PTC electric heater, the power of blower fan is larger, the heat radiation of PTC electric heater is better, PTC electric heater wants holding temperature will send more heat, and namely the power of blower fan is larger, and the operate power of PTC electric heater is larger, otherwise, the operate power of PTC electric heater is less, and the span of the power P fan of blower fan is [2W, 30W]; The input voltage of PTC electric heater directly affects the heating power of PTC electric heater, and input voltage is larger, and the operate power of PTC electric heater is larger, otherwise, the operate power of PTC electric heater is less, and the span of the input voltage virtual value of PTC electric heater is [150V, 280V].
Integral operation module 40 carries out integral operation to obtain the electricity of PTC electric heater for the estimated value of the operate power to PTC electric heater.
Particularly, the estimated value of the operate power of the PTC electric heater that Power estimation module 30 estimates by integral operation module 40 carries out integral operation, can obtain the power consumption of PTC electric heater.
In one embodiment of the invention, as shown in Figure 3, also comprise: multiple second sampling module 50, multiple second filtration module 60 and compensation correction module 70.
Multiple second sampling module 50 to be sampled multiple second variable parameters be associated with the operate power of PTC electric heater for one_to_one corresponding respectively.
Particularly, the second variable parameter is the secondary cause of the operate power affecting PTC electric heater, the second variable parameter is taken into account, and can improve the precision of the estimated value of the operate power of PTC electric heater.
Multiple second filtration modules 60 corresponding with multiple second sampling module 50, multiple second filtration module 60 is for carrying out filtering process respectively to obtain multiple second input variable to multiple second variable parameter.
Particularly, multiple second filtration module 60 is corresponding with multiple second sampling module 50 to be respectively connected, separate between multiple second sampling module 50, also be separate between multiple second filtration module 60, multiple second filtration module 60 carries out filtering process (such as, filtering sampling noiset to multiple second variable parameter, exclusive PCR), to obtain multiple second input variable, wherein, the second filtration module 60 can be firstorder filter or second order filter.
Compensation correction module 70 is for obtaining the deviation compensation amount of the operate power of PTC electric heater according to multiple second input variable, and the estimated value of the operate power of the PTC electric heater that deviation compensation amount is added to compensates correction with the estimated value of the operate power to PTC electric heater.
Particularly, the expression formula of deviation compensation amount is: Δ P
pTC=ξ (u
m+1..., u
n), u
m+1..., u
nbe multiple second input variable, ξ () is compensation correction function.
In one embodiment of the invention, multiple second variable parameters comprise the angle of the wind guide strip of indoor set in indoor environment temperature air-conditioning system, and compensation correction module obtains deviation compensation amount according to following formula:
Wherein, α
1, α
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1 and A is second input variable corresponding with the angle of indoor environment temperature and wind guide strip, Δ P
pTCfor deviation compensation amount.
Below the impact of the second variable parameter on the operate power of PTC electric heater is described.
Wherein, indoor environment temperature directly can affect the size of the temperature of indoor heat exchanger, thus affecting indirectly the operate power of PTC electric heater, indoor environment temperature is less, and the temperature of indoor heat exchanger also can diminish relatively, thus the operate power of PTC electric heater can become large, namely indoor environment temperature is less, the operate power of PTC electric heater is larger, otherwise the operate power of PTC electric heater is less, the span of indoor environment temperature is [5 DEG C, 20 DEG C].
The angle of wind guide strip has influence on the structure of air-conditioning duct outlet, when being in standard an angle of 90 degrees, air channel air output is maximum, dispels the heat best, 0 degree or 180 degree time, wind guide strip has blocked air outlet, and air channel air output is minimum, dispels the heat the poorest, namely the angle of wind guide strip is 90 degree time, the operate power of PTC electric heater is maximum relative to other angles, more departs from 90 degree, and the operate power of PTC electric heater is less.The span of the angle of wind guide strip is [0 degree, 90 degree] or [90 degree, 180 degree].
The electricity estimating device of PTC electric heater in the air-conditioning system of the embodiment of the present invention, do not need additionally to add current sampling circuit, only make use of existing sampling module, do not increase any hardware cost, Power estimation module estimates the operate power of PTC electric heater by the mode of mathematical modeling, thus integral operation module can obtain the power consumption of PTC electric heater according to this operate power, this device has saved cost, improves the competitiveness of air-conditioner.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. the electricity evaluation method of PTC electric heater in air-conditioning system, is characterized in that, comprise the following steps:
By multiple first sampling module respectively one_to_one corresponding to sample multiple first variable parameters be associated with the operate power of described PTC electric heater, and filtering process is carried out respectively to obtain multiple first input variable to described multiple first variable parameter;
According to described multiple first input variable, modeling is carried out to estimate the estimated value of the operate power of described PTC electric heater to the operate power of described PTC electric heater;
Integral operation is carried out to obtain the electricity of described PTC electric heater to the estimated value of the operate power of described PTC electric heater.
2. electricity evaluation method according to claim 1, is characterized in that, also comprise:
By multiple second sampling module respectively one_to_one corresponding to sample multiple second variable parameters be associated with the operate power of described PTC electric heater, and filtering process is carried out respectively to obtain multiple second input variable to described multiple second variable parameter;
Obtain the deviation compensation amount of the operate power of described PTC electric heater according to described multiple second input variable, and the estimated value of the operate power of the described PTC electric heater that described deviation compensation amount is added to compensates correction with the estimated value of the operate power to described PTC electric heater.
3. electricity evaluation method according to claim 1 and 2, is characterized in that, described multiple first variable parameter comprises the input voltage of the temperature of the indoor heat exchanger in described air-conditioning system, the power of blower fan and described PTC electric heater.
4. the electricity evaluation method according to any one of claim 1-3, is characterized in that, the estimated value of the operate power of described PTC electric heater obtains according to following model assessment:
y＝f2(∑w2*f1(∑w1*u+b1)+b2)，
Wherein, u is described multiple first input variable, w1 is the parameter matrix of m*g, m is the number of the first input variable, and g is the parameter dimensions of model, and b1 is threshold value column matrix and dimension is g, w2 is line parameter matrix and dimension is g, b2 is one-parameter, and function f 1 () and f2 () are S type function, and y is the estimated value of the operate power of described PTC electric heater.
5. electricity evaluation method according to claim 2, is characterized in that, described multiple second variable parameter comprises the angle of the wind guide strip of indoor set in indoor environment temperature and described air-conditioning system, and described deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T
1with the second input variable that A is corresponding with the angle of described indoor environment temperature and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
6. the electricity estimating device of PTC electric heater in air-conditioning system, is characterized in that, comprising:
Multiple first sampling module, to sample multiple first variable parameters be associated with the operate power of described PTC electric heater for one_to_one corresponding respectively;
Multiple first filtration modules corresponding with described multiple first sampling module, described multiple first filtration module is used for carrying out filtering process respectively to obtain multiple first input variable to described multiple first variable parameter;
Power estimation module, carries out modeling to estimate the estimated value of the operate power of described PTC electric heater according to described multiple first input variable to the operate power of described PTC electric heater;
Integral operation module, the estimated value for the operate power to described PTC electric heater carries out integral operation to obtain the electricity of described PTC electric heater.
7. electricity estimating device according to claim 6, is characterized in that, also comprise:
Multiple second sampling module, to sample multiple second variable parameters be associated with the operate power of described PTC electric heater for one_to_one corresponding respectively;
Multiple second filtration modules corresponding with described multiple second sampling module, described multiple second filtration module is used for carrying out filtering process respectively to obtain multiple second input variable to described multiple second variable parameter;
Compensation correction module, for obtaining the deviation compensation amount of the operate power of described PTC electric heater according to described multiple second input variable, and the estimated value of the operate power of the described PTC electric heater that described deviation compensation amount is added to compensates correction with the estimated value of the operate power to described PTC electric heater.
8. the electricity estimating device according to claim 6 or 7, is characterized in that, described multiple first variable parameter comprises the input voltage of the temperature of the indoor heat exchanger in described air-conditioning system, the power of blower fan and described PTC electric heater.
9. the electricity estimating device according to any one of claim 6-8, is characterized in that, described Power estimation module is according to the estimated value of operate power obtaining described PTC electric heater with drag:
y＝f2(∑w2*f1(∑w1*u+b1)+b2)，
Wherein, u is described multiple first input variable, w1 is the parameter matrix of m*g, m is the number of the first input variable, and g is the parameter dimensions of model, and b1 is threshold value column matrix and dimension is g, w2 is line parameter matrix and dimension is g, b2 is one-parameter, and function f 1 () and f2 () are S type function, and y is the estimated value of the operate power of described PTC electric heater.
10. electricity estimating device according to claim 7, it is characterized in that, described multiple second variable parameter comprises the angle of the wind guide strip of indoor set in indoor environment temperature and described air-conditioning system, and described compensation correction module obtains described deviation compensation amount according to following formula:
Wherein, α
1, α
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T
1with the second input variable that A is corresponding with the angle of described indoor environment temperature and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
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