CN105091222A - Power consumption detecting method and device of air conditioner and air conditioner - Google Patents
Power consumption detecting method and device of air conditioner and air conditioner Download PDFInfo
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- CN105091222A CN105091222A CN201510468011.7A CN201510468011A CN105091222A CN 105091222 A CN105091222 A CN 105091222A CN 201510468011 A CN201510468011 A CN 201510468011A CN 105091222 A CN105091222 A CN 105091222A
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- conditioner
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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
-
- 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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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a power consumption detecting method and device for an air conditioner and the air conditioner. The method comprises the steps that an outdoor controller obtains the voltage instantaneous value and the current instantaneous value of an outdoor unit, and active power of an outdoor draught fan and active power of a compressor are calculated; the outdoor controller calculates the voltage effective value of the outdoor unit and sends the voltage effective value to an indoor controller; the indoor controller obtains the rotating speed of a motor of an indoor draught fan, the angle of indoor unit air guiding strips, the temperature of an indoor heat exchanger, the indoor environment temperature and the indoor environment humidity, and the running power of the indoor draught fan is estimated by establishing a power estimation model function; the indoor controller carries out modeling on the running power of a PTC with the temperature of the indoor heat exchanger, the running power of the indoor draught fan and the voltage effective value of the outdoor unit as a first input variable, and therefore the running power of the PTC can be estimated; and the total power of the air conditioner is obtained, and integral operation is carried out on the total power so as to obtain the power consumption of the air conditioner. According to the method, the power consumption of the air conditioner can be accurately obtained without adding hardware cost.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to a kind of power consumption detection method of air-conditioner, device and air-conditioner.
Background technology
Along with the enhancing day by day that the universal of air-conditioner and user's energy-saving and emission-reduction are realized, user is more and more concerned about the power of air-conditioner and power consumption in the process of using air-condition device, therefore, accurately and effectively the electricity consumption situation of air-conditioner is fed back to the direction that user becomes air-conditioner development.In correlation technique, obtain power and the power consumption of air-conditioner mainly through following two kinds of methods.
1) power and the power consumption of air-conditioner is obtained by increasing electric power detection hardware: such as, special electricity detection module is increased at air-conditioner input, or increase voltage, current sensor to detect voltage, the current signal of air-conditioner input at air-conditioner input, and the power consumption of air-conditioner is calculated by MCU (MicroControllerUnit, micro-control unit).But the cost increase of the method is larger.
2) without the need to adding hardware, the power and power consumption that obtain air-conditioner is calculated: in order to improve the power factor (PF) of air-conditioner by pure software, off-premises station in existing air-conditioner has PFC (PowerFactorCorrection, PFC) circuit usually.By utilizing the voltage of pfc circuit, current detection circuit to obtain voltage, the current signal of off-premises station, and the power of off-premises station is calculated by MCU, then estimate the power of indoor set in conjunction with the operational mode of air-conditioner and operating mode, thus calculate power and the power consumption of air-conditioner.In the method, power due to indoor set is estimated value, particularly when the auxiliary thermal starting of electricity, because the power ratio of the auxiliary heat of electricity is higher, fluctuation ratio is comparatively large, meanwhile, when indoor fan is for exchanging PG blower fan, due to its electric current and voltage signal cannot be gathered, therefore can there is deviation in indoor fan power, thus make the precision comparison of the power of the air-conditioner calculated and power consumption low, is difficult to the actual demand meeting user.
Therefore, the acquisition power of air-conditioner and the method for power consumption have much room for improvement.
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 power consumption detection method proposing a kind of air-conditioner, and the method just accurately can obtain general power and the power consumption of air-conditioner without the need to increasing any hardware cost, thus greatly improves Consumer's Experience.
Second object of the present invention is the power consumption checkout gear proposing a kind of air-conditioner.
3rd object of the present invention is to propose a kind of air-conditioner.
To achieve these goals, the power consumption detection method of the air-conditioner of first aspect present invention embodiment, described air-conditioner comprises indoor set and off-premises station, described indoor set comprises indoor controller, indoor fan, indoor heat exchanger and ptc heater, described off-premises station comprises outdoor controller, outdoor fan, compressor and outdoor heat exchanger, described power consumption detection method comprises the following steps: described outdoor controller obtains instantaneous voltage and the current instantaneous value of described off-premises station, and the active power of described outdoor fan and described compressor is calculated according to the instantaneous voltage of described off-premises station and current instantaneous value, described outdoor controller calculates the voltage effective value of described off-premises station according to the instantaneous voltage of described off-premises station, and the voltage effective value of described off-premises station is sent to described indoor controller, described indoor controller obtains the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, indoor environment temperature and indoor environment humidity, and by setting up the power estimation model function that is associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity to estimate the operate power of described indoor fan, the operate power of the temperature of described indoor heat exchanger, described indoor fan and the voltage effective value of described off-premises station as the first input variable, and are carried out modeling to estimate the operate power of described ptc heater according to described first input variable to the operate power of described ptc heater by described indoor controller, accumulation calculating is carried out to obtain the general power of described air-conditioner to the operate power of described outdoor fan and the active power of described compressor, the operate power of described indoor fan and described ptc heater, and integral operation is carried out to obtain the power consumption of described air-conditioner to the general power of described air-conditioner.
According to the power consumption detection method of the air-conditioner of the embodiment of the present invention, outdoor controller calculates the active power of outdoor fan and compressor, indoor controller estimates the operate power of indoor fan by setting up power estimation model function, indoor controller also estimates the operate power of ptc heater by the method for modeling, and obtain the general power of air-conditioner further, thus obtain the power consumption of air-conditioner, the method just accurately can obtain general power and the power consumption of air-conditioner without the need to increasing any hardware cost, thus greatly improves Consumer's Experience.
In one embodiment of the invention, described outdoor controller by detecting the DC side output current of rectifier bridge in described off-premises station to obtain the current instantaneous value of described off-premises station, and by the DC output end voltage that detects described rectifier bridge to obtain the instantaneous voltage of described off-premises station.
In one embodiment of the invention, the operate power of described ptc heater obtains according to following model assessment:
y＝f
2(∫Φ*f
1(∫Ε*u+θ
1)+θ
2)
Wherein, u is the input vector after described first input variable normalized, Ε and Φ is the weight parameter vector matrix of the first input variable described in model, θ
1and θ
2for the amount of bias of model, f
1() and f
2() is S type function, and y is model output valve.
In one embodiment of the invention, when estimating the operate power of described ptc heater, described indoor controller using the angle of the wind guide strip of described indoor environment temperature, described indoor environment humidity and described indoor set as the second input variable, and obtain the deviation compensation amount of the operate power of described ptc heater according to described second input variable, and the operate power of the described ptc heater that described deviation compensation amount is added to is to compensate correction to the operate power of described ptc heater.
In one embodiment of the invention, described deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, ρ
1, ρ
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1, H and A are second input variable corresponding with the angle of described indoor environment temperature, indoor environment humidity and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
In one embodiment of the invention, the power estimation model function be associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity is represented by following formula:
P＝F(n，A，T2)+G(T1，H)
Wherein,
F
11(x)=a*x
2+ b*x+c, S2, S1, d1 are matrix coefficient, and d2, a, b, c are the first constant coefficient, u
1for matrix [n, A, T2], G (T1, H)=a1*T1
2+ b1*T1+a2*H
2+ b2*H+c1+c2, a1, b1, c1, a2, b2, c2 are the second constant coefficient, and n is the motor speed of described indoor fan, T2 is the temperature of described indoor heat exchanger, T1 is described indoor environment temperature, and H is described indoor environment humidity, and A is the angle of described wind guide strip.
To achieve these goals, the power consumption checkout gear of the air-conditioner of second aspect present invention embodiment, described air-conditioner comprises indoor set and off-premises station, described indoor set comprises indoor fan, indoor heat exchanger and ptc heater, described off-premises station comprises outdoor fan, compressor and outdoor heat exchanger, described power consumption checkout gear comprises outdoor controller and indoor controller, wherein, described outdoor controller, for obtaining instantaneous voltage and the current instantaneous value of described off-premises station, and the active power of described outdoor fan and described compressor is calculated according to the instantaneous voltage of described off-premises station and current instantaneous value, described outdoor controller, also for calculating the voltage effective value of described off-premises station according to the instantaneous voltage of described off-premises station, and sends to described indoor controller by the voltage effective value of described off-premises station, described indoor controller, for obtaining the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, indoor environment temperature and indoor environment humidity, and by setting up the power estimation model function that is associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity to estimate the operate power of described indoor fan, described indoor controller, also for using the operate power of the temperature of described indoor heat exchanger, described indoor fan and the voltage effective value of described off-premises station as the first input variable, and according to described first input variable, modeling is carried out to estimate the operate power of described ptc heater to the operate power of described ptc heater, described outdoor controller and/or the operate power of described indoor controller to described outdoor fan and the active power of described compressor, the operate power of described indoor fan and described ptc heater carry out accumulation calculating to obtain the general power of described air-conditioner, and carry out integral operation to obtain the power consumption of described air-conditioner to the general power of described air-conditioner.
According to the power consumption checkout gear of the air-conditioner of the embodiment of the present invention, outdoor controller calculates the active power of outdoor fan and compressor, indoor controller estimates the operate power of indoor fan by setting up power estimation model function, indoor controller also estimates the operate power of ptc heater by modeling, and obtain the general power of air-conditioner further, thus obtain the power consumption of air-conditioner, this device just accurately can obtain general power and the power consumption of air-conditioner without the need to increasing any hardware cost, thus greatly improves Consumer's Experience.
In one embodiment of the invention, described outdoor controller by detecting the DC side output current of rectifier bridge in described off-premises station to obtain the current instantaneous value of described off-premises station, and by the DC output end voltage that detects described rectifier bridge to obtain the instantaneous voltage of described off-premises station.
In one embodiment of the invention, the operate power of described ptc heater obtains according to following model assessment:
y＝f
2(∫Φ*f
1(∫Ε*u+θ
1)+θ
2)
Wherein, u is the input vector after described first input variable normalized, Ε and Φ is the weight parameter vector matrix of the first input variable described in model, θ
1and θ
2for the amount of bias of model, f
1() and f
2() is S type function, and y is model output valve.
In one embodiment of the invention, when estimating the operate power of described ptc heater, described indoor controller also using the angle of the wind guide strip of described indoor environment temperature, described indoor environment humidity and described indoor set as the second input variable, and obtain the deviation compensation amount of the operate power of described ptc heater according to described second input variable, and the operate power of the described ptc heater that described deviation compensation amount is added to is to compensate correction to the operate power of described ptc heater.
In one embodiment of the invention, described deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, ρ
1, ρ
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1, H and A are second input variable corresponding with the angle of described indoor environment temperature, indoor environment humidity and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
In one embodiment of the invention, the power estimation model function be associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity is represented by following formula:
P＝F(n，A，T2)+G(T1，H)
Wherein,
F
11(x)=a*x
2+ b*x+c, S2, S1, d1 are matrix coefficient, and d2, a, b, c are the first constant coefficient, u
1for matrix [n, A, T2], G (T1, H)=a1*T1
2+ b1*T1+a2*H
2+ b2*H+c1+c2, a1, b1, c1, a2, b2, c2 are the second constant coefficient, and n is the motor speed of described indoor fan, T2 is the temperature of described indoor heat exchanger, T1 is described indoor environment temperature, and H is described indoor environment humidity, and A is the angle of described wind guide strip.
To achieve these goals, the air-conditioner of third aspect present invention embodiment, comprises the power consumption checkout gear of second aspect present invention embodiment.
According to the air-conditioner of the embodiment of the present invention, owing to being provided with this power consumption checkout gear, just accurately can obtaining general power and the power consumption of air-conditioner without the need to increasing any hardware cost, thus greatly improve Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the flow chart of the power consumption detection method of air-conditioner according to an embodiment of the invention;
Fig. 2 is the block diagram of indoor set and off-premises station according to an embodiment of the invention;
Fig. 3 is the flow chart of the power consumption detection method of air-conditioner according to the present invention's specific embodiment;
Fig. 4 is the block diagram of the power consumption checkout gear of air-conditioner according to an embodiment of the invention.
Reference numeral:
Outdoor controller 10 and indoor controller 20.
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.
The power consumption detection method of the air-conditioner of the embodiment of the present invention, device and air-conditioner are described with reference to the accompanying drawings.Fig. 1 is the flow chart of the power consumption detection method of air-conditioner according to an embodiment of the invention.Wherein, air-conditioner comprises indoor set and off-premises station, and indoor set comprises indoor controller, indoor fan, indoor heat exchanger and ptc heater, and off-premises station comprises outdoor controller, outdoor fan, compressor and outdoor heat exchanger.
Wherein, the power consumption detection method of the air-conditioner of the embodiment of the present invention, being applicable to indoor fan is PG blower fan, and outdoor compressor and blower fan are the air-conditioner of the direct current generator type of PMSM or BLDC.
As shown in Figure 1, the power consumption detection method of the air-conditioner of the embodiment of the present invention comprises the following steps:
S1, outdoor controller obtains instantaneous voltage and the current instantaneous value of off-premises station, and according to the instantaneous voltage of off-premises station and the active power of current instantaneous value calculating outdoor fan and compressor.
In one embodiment of the invention, outdoor controller by detecting the DC side output current of rectifier bridge in off-premises station to obtain the current instantaneous value of off-premises station, and by the DC output end voltage of detection rectifier bridge to obtain the instantaneous voltage of off-premises station.
Particularly, outdoor fan that off-premises station uses and outdoor compressor are all variable-frequency motor, by DC voltage inversion rear drive outdoor fan and outdoor compressor.Therefore, as shown in Figure 2, outdoor controller by obtaining the DC side output current of rectifier bridge in off-premises station to obtain the current instantaneous value of off-premises station, and by the DC output end voltage of acquisition rectifier bridge to obtain the instantaneous voltage of off-premises station.
Further, outdoor controller calculates the active-power P of outdoor fan and compressor according to the instantaneous voltage of the current instantaneous value of off-premises station and off-premises station
mOTOR.
S2, outdoor controller calculates the voltage effective value of off-premises station according to the instantaneous voltage of off-premises station, and the voltage effective value of off-premises station is sent to indoor controller.
Particularly, outdoor controller calculates the voltage effective value of off-premises station by the instantaneous voltage of off-premises station, and the voltage effective value of off-premises station is sent to indoor controller.Because this instantaneous voltage is identical with complete machine input voltage instantaneous value size, only phase place changes through rectifier bridge, and therefore this voltage effective value is identical with complete machine voltage effective value.
S3, indoor controller obtains the motor speed of indoor fan, the angle of the wind guide strip of indoor set, the temperature of indoor heat exchanger, indoor environment temperature and indoor environment humidity, and the power estimation model function be associated by the temperature of the angle of foundation and the motor speed of indoor fan, the wind guide strip of indoor set, indoor heat exchanger, indoor environment temperature and indoor environment humidity is to estimate the operate power of indoor fan.
In one embodiment of the invention, the power estimation model function be associated with the temperature of the angle of the motor speed of indoor fan, the wind guide strip of indoor set, indoor heat exchanger, indoor environment temperature and indoor environment humidity is represented by following formula (1):
P＝F(n，A，T2)+G(T1，H)，(1)
Wherein,
f
11(x)＝a*x
2+b*x+c，(3)
G(T1,H)＝a1*T1
2+b1*T1+a2*H
2+b2*H+c1+c2，(4)
Wherein, S2, S1, d1 are matrix coefficient, and d2, a, b, c are the first constant coefficient, u
1for matrix [n, A, T2], a1, b1, c1, a2, b2, c2 are the second constant coefficient, and n is the motor speed of indoor fan, and T2 is the temperature of indoor heat exchanger, and T1 is indoor environment temperature, and H is indoor environment humidity, and A is the angle of wind guide strip.
Introduce the method for the operate power of indoor controller estimation indoor fan below in detail.
First, first by experiment, under same rotational speed n, different wind-guiding angle A, the power under different evaporators temperature T2 (i.e. the temperature of indoor heat exchanger), different air themperature T1 (i.e. indoor environment temperature) and different air humidity H condition.And set up power estimation model function, shown in (1), P is air conditioner room unit PG power of motor, i.e. the operate power P of indoor fan
fAN.
Wherein, F (n, A, T2) is principal function, and F (n, A, T2) function can realize PG major power and estimate, G (T1, H) is penalty function, revises the result that F (n, A, T2) calculates for fine setting.
Wherein, F (n, A, T2) function and G (T1, H) can have many forms, in one embodiment of the invention, F (n, A, T2) function formula as shown in (2), wherein, f
11x () is as shown in (3).S2, S1, d1 are matrix coefficient, and d2, a, b, c are constant coefficient, and experimentally test is determined; The scope of n is [500rpm, 1300rpm], tests a point every 5prm; The scope of the angle A of wind guide strip is determined according to indoor apparatus of air conditioner wind-guiding angular range, and in one embodiment of the invention, A scope is [0 degree, 80 degree], every 2 degree of tests point; The scope of T2 is [-10 degrees Celsius, 60 degrees Celsius], every 2 degree of tests point.
In addition, G (T1, H) function formula is as shown in (4), and wherein, a1, b1, c1, a2, b2, c2 are constant coefficient, and experimentally test is determined; The scope of T1 is [-10 degrees Celsius, 50 degrees Celsius], every 2 degree of tests point; The scope of H is [10,90], tests a point every 5RH.
Secondly, indoor controller accepts the motor speed instruction of air-conditioning control program input; Then, indoor controller control PG motor runs, and calculates the rotating speed of motor by motor pulses feedback signal, regulates the copped wave time of PG motor, thus the running speed of motor is adjusted to the motor speed command value of described input; Further, indoor controller controls in motor operation course, and the angle that the angle simultaneously controlling wind guide strip set according to air-conditioning system or swinging condition run, and evaporator temperature T2, indoor environment temperature T1 in real-time sensing chamber; Finally, the realtime power of PG motor is calculated according to power estimation model function (1).
S4, the voltage effective value of the temperature of indoor heat exchanger, the operate power of indoor fan and off-premises station as the first input variable, and is carried out modeling to estimate the operate power of ptc heater according to the first input variable to the operate power of ptc heater by indoor controller.
Particularly, mainly comprise three principal elements such as ambient temperature, magnitude of voltage and air quantity owing to affecting PTC watt level in air-conditioning use procedure, and these three factors and evaporimeter T2 temperature (i.e. the temperature of indoor heat exchanger), input voltage virtual value (i.e. the voltage effective value of off-premises station) and the operate power of outdoor fan are contacted directly.
Wherein, evaporator temperature T2 is the temperature near PTC, and the temperature T2 of evaporimeter is larger, and needed for PTC, caloric value is less, and namely T2 is larger, and PTC operate power is less, otherwise PTC operate power is larger.The minimum of a value of evaporator temperature T2 is set as 10 degrees Celsius, and maximum is 80 degrees Celsius, enumerates the scope that T2 may occur; The power P of indoor fan
fANhave influence on the heat radiation of PTC, power is larger, and dispel the heat better, PTC wants holding temperature will send more heat, i.e. P
fANlarger, PTC operate power is larger, otherwise PTC operate power is less.Power of fan P
fANminimum of a value be taken as 2W, maximum is taken as 30W; The voltage effective value U of off-premises station directly affects the heating power of PTC, and U is larger, and PTC operate power is larger, otherwise PTC operate power is less.The minimum of a value of PTC input voltage U virtual value is 150V, and maximum is 280V, defines the voltage bound that China's electrical network may occur.
More specifically, using above main affecting factors as the data model between input variable (i.e. the first input variable) foundation with PTC watt level, this model can be expressed as: y=f (u), wherein y representative model output valve, u is each input vector, u=(u
1, u
2..., u
m), be the input of various dimensions, these input variables are the sampled value of above-mentioned those major effects PTC operate power, and these sampled values are input in software digital model of the present invention, just can obtain current PTC realtime power value.
In one embodiment of the invention, the operate power P of ptc heater
pTCobtain according to following model assessment:
y＝f
2(∫Φ*f
1(∫Ε*u+θ
1)+θ
2)，(5)
Wherein, u is the input vector after the first input variable normalized, Ε and Φ is the weight parameter vector matrix of the first input variable in model, θ
1and θ
2for the amount of bias of model, f
1() and f
2() is S type function, and y is model output valve.
Wherein, f
1the process function that () is input vector,
σ, β in formula and
for given parameter, f
2()=f
1the process function that () is intermediate vector.
In one embodiment of the invention, when estimating the operate power of ptc heater, indoor controller using the angle of the wind guide strip of indoor environment temperature, indoor environment humidity and indoor set as the second input variable, and obtain the deviation compensation amount of the operate power of ptc heater according to the second input variable, and the operate power of the ptc heater that deviation compensation amount is added to is to compensate correction to the operate power of ptc heater.
Particularly, some are also had to affect the secondary cause of PTC power, such as: the angle A etc. of indoor environment temperature T1, indoor environment humidity H and wind guide strip.
Wherein, indoor environment temperature T1 directly can affect the size of T2, thus affects indirectly the operate power of PTC, T1 is less, and T2 also can diminish relatively, thus the operate power of PTC can become large, and namely T1 is less, PTC operate power is larger, otherwise PTC operate power is less; Indoor environment humidity H also can have influence on the heat radiation of PTC, and humidity is larger, and the moisture in air is more, can take away more heat by when evaporimeter and PTC, therefore, H is larger, and the operate power of PTC can become large, otherwise, PTC operate power diminishes, and certainly, the impact of humidity can not be so obvious; The angle A 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 A is 90 degree time, the operate power of PTC is maximum relative to other angles, more departs from 90 degree, and PTC operate power is less.
More specifically, secondary cause also takes into account by we, and by adding to exporting the precision that compensation improves PTC estimation, the mathematic(al) representation of this penalty function is as follows: Δ P
pTC=ξ (u
m+1..., u
n), wherein, u
m+1..., u
nbe the input sample value compensating correction, Δ P
pTCbe the deviation compensation amount of PTC power, ξ () is compensation correction function.
In one embodiment of the invention, deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, ρ
1, ρ
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1, H and A are second input variable corresponding with the angle of indoor environment temperature, indoor environment humidity and wind guide strip, Δ P
pTCfor deviation compensation amount.
S5, carries out accumulation calculating to obtain the general power of air-conditioner to the operate power of outdoor fan and the active power of compressor, the operate power of indoor fan and ptc heater, and carries out integral operation to obtain the power consumption of air-conditioner to the general power of air-conditioner.
In one embodiment of the invention, indoor controller also calculates the power of other load in indoor set.
Particularly, indoor controller estimates power according to the duty of indoor controller and the duty of other load, indoor except blower fan and PTC, also has stepper motor, main point work and stopping two states, under duty, power is 2W, and under halted state, power is 0W, electric-controlled plate power is lower is in working order 1.5W, is 0.2W under holding state.
In one embodiment of the invention, outdoor controller also calculates the power of other load in off-premises station.
Particularly, outdoor controller estimates power according to the duty of outdoor controller and the duty of other load, outdoor except blower fan and compressor, also comprise cross valve, electric expansion valve, main point work and stopping two states, and power substantially constant under often kind of state, cross valve descends power to be 5W in working order, under halted state, power is 0W, electric expansion valve is lower is in working order 3W, be 0W under halted state, electric-controlled plate is lower is in working order 3W, and time standby, power is 0.5W.
More specifically, to the active-power P of outdoor fan and compressor
mOTOR, indoor fan operate power P
fANwith the operate power P of ptc heater
pTC, and indoor set in the power of other load and the power of other load in off-premises station carry out accumulation calculating to obtain the general power of air-conditioner, and integral operation is carried out to obtain the power consumption of air-conditioner to the general power of air-conditioner.
In one embodiment of the invention, can the realtime power size of air-conditioner and power consumption information be passed in mobile phone A PP and server, carry out inquiring about and data analysis for user.
The power consumption detection method of the air-conditioner of the embodiment of the present invention, outdoor controller calculates the active power of outdoor fan and compressor, indoor controller estimates the operate power of indoor fan by setting up power estimation model function, indoor controller also estimates the operate power of ptc heater by the method for modeling, and obtain the general power of air-conditioner further, thus obtain the power consumption of air-conditioner, the method just accurately can obtain general power and the power consumption of air-conditioner without the need to increasing any hardware cost, thus greatly improves Consumer's Experience.
Fig. 3 is the power consumption detection method of the air-conditioner according to the present invention's specific embodiment.As shown in Figure 3, the power consumption detection method of the air-conditioner of the embodiment of the present invention, comprises the following steps:
S101, outdoor controller calculates the active-power P of outdoor compressor and outdoor fan according to PFC voltage and current sample circuit instantaneous value
mOTOR, and the voltage effective value of the off-premises station calculated is passed to indoor controller.
S102, outdoor controller calculates other bearing power sizes of off-premises station, as cross valve, electric expansion valve etc.
S103, indoor controller passes through the data such as motor speed n, condenser pipe temperature T2 and indoor environment temperature T1, wind guide strip angle A and indoor environment humidity H, by data modeling counting chamber inner blower active-power P
fAN.
S104, indoor controller calculates the operate power of ptc heater by data modeling according to information such as the switch situations of the voltage effective value of outdoor controller transmission, indoor temperature T1, evaporator temperature T2, indoor fan power, wind guide strip angle, indoor environment humidity and PTC.
S105, indoor controller calculates indoor set other loading section watt level, such as stepper motor, circuit boards etc.
S106, accumulates together the performance number that above each several part calculates and calculates air conditioner watt level, and go out air-conditioning power consumption by integral and calculating.
S107, is passed to mobile phone A PP and server by air-conditioning realtime power size and power consumption information, carries out inquiring about and data analysis for user.
In order to realize above-described embodiment, the invention allows for a kind of power consumption checkout gear of air-conditioner.
Fig. 4 is the block diagram of the power consumption checkout gear of air-conditioner according to an embodiment of the invention.Wherein, air-conditioner comprises indoor set and off-premises station, and indoor set comprises indoor fan, indoor heat exchanger and ptc heater, and off-premises station comprises outdoor fan, compressor and outdoor heat exchanger, and power consumption checkout gear comprises outdoor controller 10 and indoor controller 20.
Wherein, the power consumption checkout gear of the air-conditioner of the embodiment of the present invention, being applicable to indoor fan is PG blower fan, and outdoor compressor and blower fan are the air-conditioner of the direct current generator type of PMSM or BLDC.
Wherein, outdoor controller 10 for obtaining instantaneous voltage and the current instantaneous value of off-premises station, and calculates the active power of outdoor fan and compressor according to the instantaneous voltage of off-premises station and current instantaneous value.
In one embodiment of the invention, outdoor controller 10 by detecting the DC side output current of rectifier bridge in off-premises station to obtain the current instantaneous value of off-premises station, and by the DC output end voltage of detection rectifier bridge to obtain the instantaneous voltage of off-premises station.
Particularly, outdoor fan that off-premises station uses and outdoor compressor are all variable-frequency motor, by DC voltage inversion rear drive outdoor fan and outdoor compressor.Therefore, outdoor controller 10 by obtaining the DC side output current of rectifier bridge in off-premises station to obtain the current instantaneous value of off-premises station, and by the DC output end voltage of acquisition rectifier bridge to obtain the instantaneous voltage of off-premises station.
Further, outdoor controller 10 calculates the active-power P of outdoor fan and compressor according to the instantaneous voltage of the current instantaneous value of off-premises station and off-premises station
mOTOR.
The voltage effective value of off-premises station also for calculating the voltage effective value of off-premises station according to the instantaneous voltage of off-premises station, and is sent to indoor controller 20 by outdoor controller 10.
Particularly, outdoor controller 10 calculates the voltage effective value of off-premises station by the instantaneous voltage of off-premises station, and the voltage effective value of off-premises station is sent to indoor controller 20.Because this instantaneous voltage is identical with complete machine input voltage instantaneous value size, only phase place changes through rectifier bridge, and therefore this voltage effective value is identical with complete machine voltage effective value.
Indoor controller 20 for obtaining the motor speed of indoor fan, the angle of the wind guide strip of indoor set, the temperature of indoor heat exchanger, indoor environment temperature and indoor environment humidity, and by setting up the power estimation model function that is associated with the temperature of the angle of the motor speed of indoor fan, the wind guide strip of indoor set, indoor heat exchanger, indoor environment temperature and indoor environment humidity to estimate the operate power of indoor fan.
In one embodiment of the invention, power estimation model function through type (1) be associated with the temperature of the angle of the motor speed of indoor fan, the wind guide strip of indoor set, indoor heat exchanger, indoor environment temperature and indoor environment humidity represents.F (n, A, T2) function through type (2) represents, f
11x () through type (3) represents, G (T1, H) through type (4) represents.
Indoor controller 20 also for using the voltage effective value of the temperature of indoor heat exchanger, the operate power of indoor fan and off-premises station as the first input variable, and according to the first input variable, modeling is carried out to estimate the operate power of ptc heater to the operate power of ptc heater.
Particularly, mainly comprise three principal elements such as ambient temperature, magnitude of voltage and air quantity owing to affecting PTC watt level in air-conditioning use procedure, and these three factors and evaporimeter T2 temperature (i.e. the temperature of indoor heat exchanger), input voltage virtual value (i.e. the voltage effective value of off-premises station) and the operate power of outdoor fan are contacted directly.
Wherein, evaporator temperature T2 is the temperature near PTC, and the temperature T2 of evaporimeter is larger, and needed for PTC, caloric value is less, and namely T2 is larger, and PTC operate power is less, otherwise PTC operate power is larger.The minimum of a value of evaporator temperature T2 is set as 10 degrees Celsius, and maximum is 80 degrees Celsius, enumerates the scope that T2 may occur; The power P of indoor fan
fANhave influence on the heat radiation of PTC, power is larger, and dispel the heat better, PTC wants holding temperature will send more heat, i.e. P
fANlarger, PTC operate power is larger, otherwise PTC operate power is less.Power of fan P
fANminimum of a value be taken as 2W, maximum is taken as 30W; The voltage effective value U of off-premises station directly affects the heating power of PTC, and U is larger, and PTC operate power is larger, otherwise PTC operate power is less.The minimum of a value of PTC input voltage U virtual value is 150V, and maximum is 280V, defines the voltage bound that China's electrical network may occur.
More specifically, using above main affecting factors as the data model between input variable (i.e. the first input variable) foundation with PTC watt level, this model can be expressed as: y=f (u), wherein y representative model output valve, u is each input vector, u=(u
1, u
2..., u
m), be the input of various dimensions, these input variables are the sampled value of above-mentioned those major effects PTC operate power, and these sampled values are input in software digital model of the present invention, just can obtain current PTC realtime power value.
In one embodiment of the invention, the model assessment of operate power according to formula (5) of ptc heater obtains.
In one embodiment of the invention, when estimating the operate power of ptc heater, indoor controller 20 also using the angle of the wind guide strip of indoor environment temperature, indoor environment humidity and indoor set as the second input variable, and obtain the deviation compensation amount of the operate power of ptc heater according to the second input variable, and the operate power of the ptc heater that deviation compensation amount is added to is to compensate correction to the operate power of ptc heater.
Particularly, some are also had to affect the secondary cause of PTC power, such as: the angle A etc. of indoor environment temperature T1, indoor environment humidity H and wind guide strip.
Wherein, indoor environment temperature T1 directly can affect the size of T2, thus affects indirectly the operate power of PTC, T1 is less, and T2 also can diminish relatively, thus the operate power of PTC can become large, and namely T1 is less, PTC operate power is larger, otherwise PTC operate power is less; Indoor environment humidity H also can have influence on the heat radiation of PTC, and humidity is larger, and the moisture in air is more, can take away more heat by when evaporimeter and PTC, therefore, H is larger, and the operate power of PTC can become large, otherwise, PTC operate power diminishes, and certainly, the impact of humidity can not be so obvious; The angle A 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 A is 90 degree time, the operate power of PTC is maximum relative to other angles, more departs from 90 degree, and PTC operate power is less.
In one embodiment of the invention, deviation compensation amount obtains according to formula (6).
The operate power of outdoor controller 10 and/or indoor controller 20 pairs of outdoor fans and the active power of compressor, the operate power of indoor fan and ptc heater carries out accumulation calculating to obtain the general power of air-conditioner, and carries out integral operation to obtain the power consumption of air-conditioner to the general power of air-conditioner.
In one embodiment of the invention, indoor controller 20 also calculates the power of other load in indoor set.
Particularly, indoor controller 20 estimates power according to the duty of indoor controller 20 and the duty of other load, indoor except blower fan and PTC, also has stepper motor, main point work and stopping two states, under duty, power is 2W, and under halted state, power is 0W, electric-controlled plate power is lower is in working order 1.5W, is 0.2W under holding state.
In one embodiment of the invention, outdoor controller 10 also calculates the power of other load in off-premises station.
Particularly, outdoor controller 10 estimates power according to the duty of outdoor controller 10 and the duty of other load, outdoor except blower fan and compressor, also comprise cross valve, electric expansion valve, main point work and stopping two states, and power substantially constant under often kind of state, cross valve descends power to be 5W in working order, under halted state, power is 0W, electric expansion valve is lower is in working order 3W, be 0W under halted state, electric-controlled plate is lower is in working order 3W, and time standby, power is 0.5W.
More specifically, to the active-power P of outdoor fan and compressor
mOTOR, indoor fan operate power P
fANwith the operate power P of ptc heater
pTC, and indoor set in the power of other load and the power of other load in off-premises station carry out accumulation calculating to obtain the general power of air-conditioner, and integral operation is carried out to obtain the power consumption of air-conditioner to the general power of air-conditioner.
In one embodiment of the invention, the realtime power size of air-conditioner and power consumption information can be passed in mobile phone A PP and server by outdoor controller 10 and/or indoor controller 20, carry out inquiring about and data analysis for user.
The power consumption checkout gear of the air-conditioner of the embodiment of the present invention, outdoor controller calculates the active power of outdoor fan and compressor, indoor controller estimates the operate power of indoor fan by setting up power estimation model function, indoor controller also estimates the operate power of ptc heater by modeling, and obtain the general power of air-conditioner further, thus obtain the power consumption of air-conditioner, this device just accurately can obtain general power and the power consumption of air-conditioner without the need to increasing any hardware cost, thus greatly improves Consumer's Experience.
In order to realize above-described embodiment, the invention allows for a kind of air-conditioner.This air-conditioner comprises the power consumption checkout gear of the embodiment of the present invention.
The air-conditioner of the embodiment of the present invention, owing to being provided with this power consumption checkout gear, just accurately can obtaining general power and the power consumption of air-conditioner, thus greatly improve Consumer's Experience without the need to increasing any hardware cost.
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 (13)
1. the power consumption detection method of an air-conditioner, it is characterized in that, described air-conditioner comprises indoor set and off-premises station, described indoor set comprises indoor controller, indoor fan, indoor heat exchanger and ptc heater, described off-premises station comprises outdoor controller, outdoor fan, compressor and outdoor heat exchanger, and described power consumption detection method comprises the following steps:
Described outdoor controller obtains instantaneous voltage and the current instantaneous value of described off-premises station, and calculates the active power of described outdoor fan and described compressor according to the instantaneous voltage of described off-premises station and current instantaneous value;
Described outdoor controller calculates the voltage effective value of described off-premises station according to the instantaneous voltage of described off-premises station, and the voltage effective value of described off-premises station is sent to described indoor controller;
Described indoor controller obtains the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, indoor environment temperature and indoor environment humidity, and by setting up the power estimation model function that is associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity to estimate the operate power of described indoor fan;
The operate power of the temperature of described indoor heat exchanger, described indoor fan and the voltage effective value of described off-premises station as the first input variable, and are carried out modeling to estimate the operate power of described ptc heater according to described first input variable to the operate power of described ptc heater by described indoor controller;
Accumulation calculating is carried out to obtain the general power of described air-conditioner to the operate power of described outdoor fan and the active power of described compressor, the operate power of described indoor fan and described ptc heater, and integral operation is carried out to obtain the power consumption of described air-conditioner to the general power of described air-conditioner.
2. the power consumption detection method of air-conditioner according to claim 1, it is characterized in that, described outdoor controller by detecting the DC side output current of rectifier bridge in described off-premises station to obtain the current instantaneous value of described off-premises station, and by the DC output end voltage that detects described rectifier bridge to obtain the instantaneous voltage of described off-premises station.
3. the power consumption detection method of air-conditioner according to claim 1, is characterized in that, the operate power of described ptc heater obtains according to following model assessment:
y＝f
2(∫Φ*f
1(∫Ε*u+θ
1)+θ
2)
Wherein, u is the input vector after described first input variable normalized, Ε and Φ is the weight parameter vector matrix of the first input variable described in model, θ
1and θ
2for the amount of bias of model, f
1() and f
2() is S type function, and y is model output valve.
4. the power consumption detection method of air-conditioner according to claim 1, it is characterized in that, when estimating the operate power of described ptc heater, described indoor controller using the angle of the wind guide strip of described indoor environment temperature, described indoor environment humidity and described indoor set as the second input variable, and obtain the deviation compensation amount of the operate power of described ptc heater according to described second input variable, and the operate power of the described ptc heater that described deviation compensation amount is added to is to compensate correction to the operate power of described ptc heater.
5. the power consumption detection method of air-conditioner according to claim 4, is characterized in that, described deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, ρ
1, ρ
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1, H and A are second input variable corresponding with the angle of described indoor environment temperature, indoor environment humidity and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
6. the power consumption detection method of air-conditioner according to claim 1, it is characterized in that, the power estimation model function be associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity is represented by following formula:
P＝F(n，A，T2)+G(T1，H)
Wherein,
F
11(x)=a*x
2+ b*x+c, S2, S1, d1 are matrix coefficient, and d2, a, b, c are the first constant coefficient, u
1for matrix [n, A, T2], G (T1, H)=a1*T1
2+ b1*T1+a2*H
2+ b2*H+c1+c2, a1, b1, c1, a2, b2, c2 are the second constant coefficient, and n is the motor speed of described indoor fan, T2 is the temperature of described indoor heat exchanger, T1 is described indoor environment temperature, and H is described indoor environment humidity, and A is the angle of described wind guide strip.
7. the power consumption checkout gear of an air-conditioner, it is characterized in that, described air-conditioner comprises indoor set and off-premises station, described indoor set comprises indoor fan, indoor heat exchanger and ptc heater, described off-premises station comprises outdoor fan, compressor and outdoor heat exchanger, described power consumption checkout gear comprises outdoor controller and indoor controller, wherein
Described outdoor controller, for obtaining instantaneous voltage and the current instantaneous value of described off-premises station, and calculates the active power of described outdoor fan and described compressor according to the instantaneous voltage of described off-premises station and current instantaneous value;
Described outdoor controller, also for calculating the voltage effective value of described off-premises station according to the instantaneous voltage of described off-premises station, and sends to described indoor controller by the voltage effective value of described off-premises station;
Described indoor controller, for obtaining the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, indoor environment temperature and indoor environment humidity, and by setting up the power estimation model function that is associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity to estimate the operate power of described indoor fan;
Described indoor controller, also for using the operate power of the temperature of described indoor heat exchanger, described indoor fan and the voltage effective value of described off-premises station as the first input variable, and according to described first input variable, modeling is carried out to estimate the operate power of described ptc heater to the operate power of described ptc heater;
Described outdoor controller and/or the operate power of described indoor controller to described outdoor fan and the active power of described compressor, the operate power of described indoor fan and described ptc heater carry out accumulation calculating to obtain the general power of described air-conditioner, and carry out integral operation to obtain the power consumption of described air-conditioner to the general power of described air-conditioner.
8. the power consumption checkout gear of air-conditioner according to claim 7, it is characterized in that, described outdoor controller by detecting the DC side output current of rectifier bridge in described off-premises station to obtain the current instantaneous value of described off-premises station, and by the DC output end voltage that detects described rectifier bridge to obtain the instantaneous voltage of described off-premises station.
9. the power consumption checkout gear of air-conditioner according to claim 7, is characterized in that, the operate power of described ptc heater obtains according to following model assessment:
y＝f
2(∫Φ*f
1(∫Ε*u+θ
1)+θ
2)
Wherein, u is the input vector after described first input variable normalized, Ε and Φ is the weight parameter vector matrix of the first input variable described in model, θ
1and θ
2for the amount of bias of model, f
1() and f
2() is S type function, and y is model output valve.
10. the power consumption checkout gear of air-conditioner according to claim 7, it is characterized in that, when estimating the operate power of described ptc heater, described indoor controller also using the angle of the wind guide strip of described indoor environment temperature, described indoor environment humidity and described indoor set as the second input variable, and obtain the deviation compensation amount of the operate power of described ptc heater according to described second input variable, and the operate power of the described ptc heater that described deviation compensation amount is added to is to compensate correction to the operate power of described ptc heater.
The power consumption checkout gear of 11. air-conditioners according to claim 10, is characterized in that, described deviation compensation amount obtains according to following formula:
Wherein, α
1, α
2, ρ
1, ρ
2, γ
1, γ
2with
for being compensated the model parameter of correction by pattern-recongnition method, T1, H and A are second input variable corresponding with the angle of described indoor environment temperature, indoor environment humidity and described wind guide strip, Δ P
pTCfor described deviation compensation amount.
The power consumption checkout gear of 12. air-conditioners according to claim 7, it is characterized in that, the power estimation model function be associated with the motor speed of described indoor fan, the angle of the wind guide strip of described indoor set, the temperature of described indoor heat exchanger, described indoor environment temperature and described indoor environment humidity is represented by following formula:
P＝F(n，A，T2)+G(T1，H)
Wherein,
F
11(x)=a*x
2+ b*x+c, S2, S1, d1 are matrix coefficient, and d2, a, b, c are the first constant coefficient, u
1for matrix [n, A, T2], G (T1, H)=a1*T1
2+ b1*T1+a2*H
2+ b2*H+c1+c2, a1, b1, c1, a2, b2, c2 are the second constant coefficient, and n is the motor speed of described indoor fan, T2 is the temperature of described indoor heat exchanger, T1 is described indoor environment temperature, and H is described indoor environment humidity, and A is the angle of described wind guide strip.
13. 1 kinds of air-conditioners, is characterized in that, comprise the power consumption checkout gear according to any one of claim 7-12.
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| CN105091222B (en) | 2017-11-10 |
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