CN111076368B - Air conditioner power consumption statistical method and system - Google Patents

Air conditioner power consumption statistical method and system Download PDF

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Publication number
CN111076368B
CN111076368B CN202010002113.0A CN202010002113A CN111076368B CN 111076368 B CN111076368 B CN 111076368B CN 202010002113 A CN202010002113 A CN 202010002113A CN 111076368 B CN111076368 B CN 111076368B
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air conditioner
compressor
power
power consumption
time
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CN111076368A (en
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马翠明
王文灿
邓忠文
赖东锋
金国华
叶铁英
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46Improving electric energy efficiency or saving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56Remote control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/20Heat-exchange fluid temperature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner power consumption statistical method and system, wherein the method comprises the following steps: sampling the working states of each load in the air conditioner internal unit and the air conditioner external unit at intervals of a set time; and calculating the power of each load during sampling according to the working states of each load in the air conditioner internal unit and the air conditioner external unit, summarizing the power of each load to obtain the sampling power of the air conditioner, and calculating the power consumption of the air conditioner according to the sampling power and the running time of the air conditioner. By adopting the technical scheme of the invention, the user of the air conditioner can know the power consumption of the air conditioner at any time.

Description

Air conditioner power consumption statistical method and system
Technical Field
The invention relates to the field of air conditioners, in particular to an air conditioner power consumption statistical method and system.
Background
At present, most of air conditioners in the market take energy conservation as a selling point, and users want to buy the air conditioners with enough energy conservation, but most of the air conditioners do not have an electric quantity counting function at present, and the users do not know the daily electric consumption of the air conditioners. If the power consumption of the air conditioner needs to be known, metering instruments such as an electric meter and the like need to be additionally arranged, and the use is inconvenient.
Disclosure of Invention
The invention aims to provide an air conditioner power consumption statistical method and an air conditioner power consumption statistical system aiming at the problem that users cannot know the air conditioner power consumption in the prior art.
The embodiment of the invention provides an air conditioner power consumption statistical method, which comprises the following steps:
sampling the working states of each load in the air conditioner internal unit and the air conditioner external unit at intervals of a set time;
and calculating the power of each load during sampling according to the working states of each load in the air conditioner internal unit and the air conditioner external unit, summarizing the power of each load to obtain the sampling power of the air conditioner, and calculating the power consumption of the air conditioner according to the sampling power and the running time of the air conditioner.
In the embodiment of the present invention, the air conditioner power consumption statistical method further includes: the method comprises the steps of establishing a corresponding relation between the power and the working state of each load in an air conditioner internal unit and an air conditioner external unit in advance in a load power testing mode, and calculating the power of each load according to the corresponding relation and the current working state of each load.
In the embodiment of the invention, the load of the air conditioner external unit comprises an external unit main control board, a wireless communication module, a compressor, a fan, an electric heating belt of the compressor and a strong electric coil, and the load of the air conditioner internal unit comprises a motor, a main board, an electric heater and a water pump.
In the embodiment of the invention, the power calculation mode of the compressor is as follows:
Pcompressor with a compressor housing having a plurality of compressor blades=UCompressor with a compressor housing having a plurality of compressor blades*IA compressor for compressing the refrigerant to be compressed,
wherein, ICompressor with a compressor housing having a plurality of compressor bladesIs the sum of the current of the compressor at the time of sampling is UCompressor with a compressor housing having a plurality of compressor bladesThe compressor voltage at the time of sampling.
In the embodiment of the present invention, the air conditioner power consumption statistical method further includes:
the temperature and the humidity of the outdoor environment are obtained through the wireless communication module, the power of the compressor is corrected according to the temperature and the humidity of the outdoor environment, and the power correction calculation mode of the compressor is as follows:
Pcompressor with a compressor housing having a plurality of compressor blades=UCompressor with a compressor housing having a plurality of compressor blades*ICompressor with a compressor housing having a plurality of compressor bladesIU,
Wherein alpha isI、βUCurrent I to compressor in different humidity range and temperature rangeCompressor with a compressor housing having a plurality of compressor bladesAnd compressor voltage UCompressor with a compressor housing having a plurality of compressor bladesCorrection coefficient of alphaI、βUThe method is obtained by testing the measurement errors between the sampling values of the current and the voltage of the compressor in different humidity ranges and temperature ranges and the standard current and voltage values actually measured by a high-precision current and voltage measuring instrument.
In the embodiment of the present invention, calculating the power consumption of the air conditioner according to the total power and the operation time of the air conditioner specifically includes:
collecting power once every time delta T within the time T for n times,
if the power value pi collected every time is within the range of the last power value p (i-1) ± Δ p, the electric quantity calculation mode in the time T is as follows:
Q=(p1+ p2+……+pn)*△t,
wherein n is an integer, i is the number of sampling times, Δ p is the set power jump tolerance value, and Q is the electric quantity within the time T.
In the embodiment of the invention, if the power collected at the mth time is out of the range of the last power value p (m-1) ± Δ p and the power sampling values in at least 3 continuous periods are within the range of the last sampling value ± Δ p from the mth sampling, the electric quantity calculation mode in the time T is as follows:
Q=(p1+ p2+……+pn)*△t;
otherwise, the electric quantity in the time T is calculated in the following way:
Q=(p1+…+p(m-1)+p(m-1)+p(m+1)+…+pn)*△t。
in the embodiment of the present invention, the air conditioner power consumption statistical method further includes:
correcting the calculated power consumption to obtain the actual power consumption:
Qpractice of=a*Q+b,
Wherein, a and b are correction coefficients obtained according to a calculated value and an actual measured value of the power consumption.
In the embodiment of the present invention, the air conditioner power consumption statistical method further includes:
and displaying the calculated air conditioner power consumption according to the time period selected by the user.
The embodiment of the invention also provides an air conditioner power consumption statistical system, and the air conditioner power consumption statistical method is adopted when the air conditioner power consumption statistical system calculates the power consumption of the air conditioner.
Compared with the prior art, in the air conditioner power consumption statistical method and the air conditioner power consumption statistical system, the corresponding relation between the power and the working state of each of the air conditioner internal unit and the air conditioner external unit is pre-established in a load power testing mode, the working state of each of the air conditioner internal unit and the air conditioner external unit is sampled at intervals of a set time, the power of each load is calculated according to the corresponding relation and the current working state of each load, the power of each load is collected to obtain the sampling power of the air conditioner, and the power consumption of the air conditioner is calculated according to the sampling power and the running time of the air conditioner.
Drawings
Fig. 1 is a schematic flow chart of a method for counting air conditioner power consumption according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of variation of air conditioner power.
Detailed Description
As shown in fig. 1, in the embodiment of the present invention, a statistical method for air conditioner power consumption is provided, which includes steps S1-S6. The following description will be made separately.
Step S1: and pre-establishing a corresponding relation between the power and the working state of each load in the air conditioner internal unit and the air conditioner external unit.
Step S2: and sampling the working states of each load in the air conditioner internal unit and the air conditioner external unit at intervals of a set time.
Step S3: and calculating the power of each load during sampling according to the working states of each load in the air conditioner internal unit and the air conditioner external unit, and summarizing the power of each load to obtain the sampling power of the air conditioner.
It should be noted that the air conditioner generally includes an air conditioner and an external unit of the air conditioner. For a household air conditioner, it is common to include an indoor unit and an outdoor unit. In the case of a small central air conditioner, it is common to include one indoor unit for a plurality of outdoor units. In the case of a multi-split air conditioning system, a plurality of indoor units and a plurality of outdoor units are generally included. The consumed electric quantity of the air conditioner is the sum of the electric quantity consumed by all the external machines and the electric quantity consumed by all the internal machines. To calculate the amount of electricity consumed by the air conditioner, the power of the air conditioner needs to be calculated first. The power of the air conditioner is the sum of the load power of the air conditioner internal unit and the load power of the air conditioner external unit.
As shown in fig. 2, the load of the air conditioner external unit includes an external unit main control panel, a wireless communication module, a compressor, a fan, an electric heating belt of the compressor, and a strong electric coil, and the load of the air conditioner internal unit includes a motor, a main board, an electric heater, and a water pump. The power of some loads among the loads of the air conditioner outdoor unit is a fixed value, and the power of some loads is related to the current operation state of the air conditioner. The following description will be made separately.
The basic operation of the main control board of the outdoor unit is weak current devices, so that the power is basically fixed, and the power of the main control board of the outdoor unit can be directly tested by a power tester. The wireless communication module can be arranged on the main control panel of the outdoor unit and can also be arranged at other positions. At present, a general GPRS module is used as a wireless communication module for communicating with an air conditioning system server, and system time and real-time weather parameters such as outdoor environment temperature and humidity can be obtained from the air conditioning system server. The wireless communication module is also a weak current device, the power of the wireless communication module is basically fixed, and the power can be calculated by measuring the voltage and the current when the wireless communication module works.
The compressor is the main power consumption unit of the air conditioning unit, and a voltage and current sampling circuit is arranged on the compressor driving hardware to collect the input voltage UCompressor with a compressor housing having a plurality of compressor bladesAnd an input current ICompressor with a compressor housing having a plurality of compressor bladesThe power of the compressor is calculated in the manner of:
PCompressor with a compressor housing having a plurality of compressor blades=UCompressor with a compressor housing having a plurality of compressor blades*ICompressor with a compressor housing having a plurality of compressor blades
Because there is a measurement error between the sampling values of the current and the voltage of the compressor under different humidity ranges and temperature ranges and the standard current and voltage values actually measured by the high-precision current and voltage measuring instrument, the wireless communication module is required to acquire real-time meteorological parameters to correct the calculation result in order to make the calculation result more accurate. The power correction of the compressor is calculated as follows:
Pcompressor with a compressor housing having a plurality of compressor blades=UCompressor with a compressor housing having a plurality of compressor blades*ICompressor with a compressor housing having a plurality of compressor bladesIU,
Wherein alpha isI、βUCurrent I to compressor in different humidity range and temperature rangeCompressor with a compressor housing having a plurality of compressor bladesAnd compressor voltage UCompressor with a compressor housing having a plurality of compressor bladesCorrection coefficient of alphaI、βUThe method is obtained by testing the measurement errors between the sampling values of the current and the voltage of the compressor in different humidity ranges and temperature ranges and the standard current and voltage values actually measured by a high-precision current and voltage measuring instrument.
The power of the fan is related to the model of the fan and the operating frequency of the fan during working, a corresponding relation table or a calculation formula of the operating frequency and the power of the fan can be preset, and the power of the fan can be obtained according to the fan frequency value obtained during sampling.
Power P of electric heating belt of compressorElectrical heatingAnd (working voltage/rated voltage) × rated power, and calculating in real time.
The power deviation of the strong electric coil is small under different voltages, is basically a fixed value, and is directly an average value obtained by multiple measurements.
In the air conditioner indoor unit, the power calculation method of each load is as follows:
the power of the main board and the power of the water pump are constant values and can be directly measured by a power meter. The motor power is obtained by testing the power of the units with different capacities under different wind gears, making the corresponding relation of the capacity, the model number, the wind speed and the actually measured power value of the internal unit into a table, and looking up the table to obtain the actual motor power in the current operation when the internal unit operates.
Electric heater power PElectrical heatingThe parameters related to indoor and outdoor ambient temperature, compressor operating frequency, system pressure and the like are obtained from experimental data:
Pelectrical heating= A + B [ indoor temperature ]]+ C [ inlet temperature]+ D [ exit tube temperature]+ E x [ inner fan rotation speed]+ F X wind speed]+ G outer ambient temperature]+ H + system high pressure]+ I star [ system low pressure]+ J compressor target frequency]Wherein A, B, C, D, E, F, G, H, I, J is a coefficient obtained according to the multi-test, and the external environment temperature is a real-time weather temperature obtained by the wireless communication module from the server.
It should be noted that, because of the large number of types of the internal machines, the loads carried by the internal machines of different types are different. For example, some inner machines are heated with electricity, and some inner machines are not heated with electricity. The internal machine program needs to identify the internal machine type and the load carrying condition. The loads such as whether the internal machine type is electrified and heated can be identified through the internal machine bar code attribute. The bar code of the internal machine is burnt to the internal machine by the test tool during production, and the internal machine stores and memorizes the bar code information of the internal machine. The bar code information corresponds to the model, and whether the internal machine has loads such as heating and water pump can be reflected in the model name. Therefore, the bar code information and the carried load information can be associated to form for storage, and when the internal machine runs, the load carrying information is obtained according to the self bar code query form. Due to more models, the barcode list is larger, and is often increased or changed. Therefore, the bar code and load relation table can be put into the server, the internal unit sends bar code information to the wireless communication module, the wireless communication module transmits the bar code of the internal unit to the server, the load carrying condition is obtained at the server side, and then the power of the internal unit is calculated according to the information.
Step S4: and calculating the power consumption of the air conditioner according to the sampling power and the running time of the air conditioner.
In the time T, power is collected once every time Δ T for n times, and two situations need to be considered when calculating the power consumption of the air conditioner, one is the power change caused by the change of the load opening state, which is the normal change, as shown by a point P2 in fig. 3, and the other is the abnormal sudden change of the power caused by the interference, which is the abnormal change, as shown by a point P3 in fig. 3.
If the power value pi acquired each time is within the range of the last power value p (i-1) ±. Δ p, it indicates that the load state is not changed basically, and at this time, the electric quantity calculation mode within the time T is as follows:
Q=(p1+ p2+……+pn)*△t,
wherein n is an integer, i is the number of sampling times, Δ p is the set power jump tolerance value, and Q is the electric quantity within the time T.
If the power collected for the mth time is outside the range of the last power value p (m-1) ± Δ p, and the power sampling values in at least 3 continuous periods are within the range of the last sampling value ± Δ p from the mth time sampling, it is indicated that the change of the mth power value is caused by the change of the load state, and each sampling value is an effective sampling value, and the electric quantity calculation mode in the time T is as follows:
Q=(p1+ p2+……+pn)*△t;
otherwise, the power value can be judged to jump abnormally, and the electric quantity calculation mode in the time T is as follows:
Q=(p1+…+p(m-1)+p(m-1)+p(m+1)+…+pn)*△t。
step S5: correcting the calculated power consumption to obtain the actual power consumption:
Qpractice of=a*Q+b,
Wherein, a and b are correction coefficients obtained according to a calculated value and an actual measured value of the power consumption.
Note that there is some deviation between the power consumption amount calculated in step S4 and the actual power consumption amount. Therefore, the actual power consumption of the air conditioner under different working conditions can be actually tested by the power consumption measuring instrument, the calculated theoretical power consumption is recorded, the theoretical value and the actual value form a group of discrete points, the relationship between the theoretical value and the actual value is obtained by utilizing a curve fitting mode, and the calculated power consumption is corrected.
Step S6: and displaying the calculated air conditioner power consumption according to the time period selected by the user.
Through the steps, the power consumption of the air conditioner in any time period can be calculated, and a user can enter the wire controller to inquire the power consumption condition of the air conditioner, such as the current one-hour power consumption, the current-day power consumption, the current-month power consumption, the power consumption since the power-on, the historical power consumption and other power consumption data.
The embodiment of the invention also provides an air conditioner power consumption statistical system, and the air conditioner power consumption statistical method is adopted when the air conditioner power consumption statistical system calculates the power consumption of the air conditioner.
In summary, in the air conditioner power consumption statistical method and system of the present invention, the corresponding relationship between the power and the working state of each of the air conditioner internal unit and the air conditioner external unit is pre-established by testing the power of the load, the working state of each of the air conditioner internal unit and the air conditioner external unit is sampled at intervals of a set time, the power of each of the loads is calculated according to the corresponding relationship and the current working state of each of the loads, the power of each of the loads is collected to obtain the sampling power of the air conditioner, and the power consumption of the air conditioner is calculated according to the sampling power and the running time of the air conditioner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. An air conditioner power consumption statistical method is characterized by comprising the following steps:
sampling the working states of each load in the air conditioner internal unit and the air conditioner external unit at intervals of a set time;
calculating the power of each load during sampling according to the working state of each load in the air conditioner internal unit and the air conditioner external unit, summarizing the power of each load to obtain the sampling power of the air conditioner, calculating the power consumption of the air conditioner according to the sampling power and the running time of the air conditioner,
calculating the power consumption of the air conditioner according to the total power and the running time of the air conditioner, and specifically comprising the following steps:
collecting power once every time delta T within the time T for n times,
if the power value pi collected every time is within the range of the last power value p (i-1) ± Δ p, the electric quantity calculation mode in the time T is as follows:
Q=(p1+ p2+……+pn)*△t,
wherein n is an integer, i is an integer, Δ p is a set power jump tolerance value, and Q is an electric quantity in T time,
if the power collected in the mth time is out of the range of the last power value p (m-1) ± Δ p and the power sampling values in at least 3 continuous periods are within the range of the last sampling value ± Δ p from the mth time sampling, the electric quantity calculation mode in the time T is as follows:
Q=(p1+ p2+……+pn)*△t;
otherwise, the electric quantity in the time T is calculated in the following way:
Q=(p1+…+p(m-1)+p(m-1)+p(m+1)+…+pn)*△t。
2. the air conditioner power consumption amount statistical method according to claim 1, further comprising: the method comprises the steps of establishing a corresponding relation between the power and the working state of each load in an air conditioner internal unit and an air conditioner external unit in advance in a load power testing mode, and calculating the power of each load according to the corresponding relation and the current working state of each load.
3. The air conditioner power consumption statistical method of claim 2, wherein the load of the air conditioner external unit comprises an external unit main control panel, a wireless communication module, a compressor, a fan, a compressor electric heating belt and a strong electric coil, and the load of the air conditioner internal unit comprises a motor, a main panel, an electric heater and a water pump.
4. The air conditioner power consumption statistical method of claim 3, wherein the power of the compressor is calculated by:
Pcompressor with a compressor housing having a plurality of compressor blades=UCompressor with a compressor housing having a plurality of compressor blades*IA compressor for compressing the refrigerant to be compressed,
wherein, ICompressor with a compressor housing having a plurality of compressor bladesIs the sum of the current of the compressor at the time of sampling is UCompressor with a compressor housing having a plurality of compressor bladesThe compressor voltage at the time of sampling.
5. The air conditioner power consumption amount statistical method according to claim 4, further comprising: the temperature and the humidity of the outdoor environment are obtained through the wireless communication module, the power of the compressor is corrected according to the temperature and the humidity of the outdoor environment, and the power correction calculation mode of the compressor is as follows:
Pcompressor with a compressor housing having a plurality of compressor blades=UCompressor with a compressor housing having a plurality of compressor blades*ICompressor with a compressor housing having a plurality of compressor bladesIU,
Wherein alpha isI、βUCurrent I to compressor in different humidity range and temperature rangeCompressor with a compressor housing having a plurality of compressor bladesAnd compressor voltage UCompressor with a compressor housing having a plurality of compressor bladesCorrection coefficient of alphaI、βUThe method is obtained by testing the measurement errors between the sampling values of the current and the voltage of the compressor in different humidity ranges and temperature ranges and the standard current and voltage values actually measured by a high-precision current and voltage measuring instrument.
6. The air conditioner power consumption amount statistical method according to claim 1, further comprising:
correcting the calculated power consumption to obtain the actual power consumption: qPractice of=a*Q+b,
Wherein, a and b are correction coefficients obtained according to a calculated value and an actual measured value of the power consumption.
7. The air conditioner power consumption amount statistical method according to claim 6, further comprising:
and displaying the calculated air conditioner power consumption according to the time period selected by the user.
8. An air conditioner power consumption statistical system, characterized in that when the air conditioner power consumption statistical system is used for counting the power consumption of an air conditioner, the air conditioner power consumption statistical method according to any one of claims 1 to 7 is adopted.
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