CN105571068A - Operation control method and device for air conditioner - Google Patents

Operation control method and device for air conditioner Download PDF

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Publication number
CN105571068A
CN105571068A CN201610009019.1A CN201610009019A CN105571068A CN 105571068 A CN105571068 A CN 105571068A CN 201610009019 A CN201610009019 A CN 201610009019A CN 105571068 A CN105571068 A CN 105571068A
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China
Prior art keywords
indoor
temperature
mode
air
current
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Pending
Application number
CN201610009019.1A
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Chinese (zh)
Inventor
王新利
许永锋
熊美兵
冯明坤
李�根
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201610009019.1A priority Critical patent/CN105571068A/en
Publication of CN105571068A publication Critical patent/CN105571068A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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

Abstract

The invention discloses an operation control method for an air conditioner. The operation control method for the air conditioner includes the following steps of obtaining a first temperature difference between the current temperature of an air outlet of an indoor unit and the current set temperature, correcting the current capacity demand of the indoor unit by adopting a first correction coefficient corresponding to the first temperature difference, and controlling an outdoor unit to conduct capacity output according to the corrected capacity demand so that the current temperature of the air outlet of the indoor unit can reach the current set temperature. The invention further discloses an operation control device for the air conditioner. The operation control method and device can improve the accuracy of operation control over the air conditioner.

Description

Air-conditioner operation control method and device
Technical field
The present invention relates to air-conditioner technical field, particularly relate to a kind of air-conditioner operation control method and device.
Background technology
Along with the development of domestic air conditioner technology, convertible frequency air-conditioner obtains to be popularized more and more widely.Transducer air conditioning has the advantages such as energy-conservation, comfortable relative to air-conditioner with fixed frequency.At present, the ability that transducer air conditioning controls off-premises station based on the ability need of indoor set exports, and namely controls the operating frequency of compressor in off-premises station.Common, transducer air conditioning operationally, determined the ability need of indoor set by the temperature (indoor temperature) of indoor set air inlet and the temperature difference of current design temperature, and then control the operating frequency of compressor in off-premises station according to described ability need, carry out ability output.But, in practical work process, there is coolant leakage, or compressor is aging and can not maintain the problems such as setting operating frequency, the ability of off-premises station reality is caused to export the ability need that can not meet indoor set, and then cause indoor temperature not reach design temperature, there is the problem that air-conditioner job control is not accurate enough.
Summary of the invention
Main purpose of the present invention is to provide a kind of air-conditioner operation control method and device, is intended to the degree of accuracy improving air-conditioner job control.
For achieving the above object, the invention provides a kind of air-conditioner operation control method, this air-conditioner operation control method comprises the following steps:
Obtain the Current Temperatures of air outlet of indoor set and the first temperature difference of current design temperature;
The ability need current to described indoor set of the first correction factor corresponding to described first temperature difference is adopted to revise;
Control off-premises station according to revised ability need and carry out ability output, with the described design temperature making the Current Temperatures of air outlet of indoor set reach current.
Preferably, before the step of the Current Temperatures of described acquisition air outlet of indoor set and the first temperature difference of current design temperature, also comprise:
Obtain current mode of operation, wherein, described mode of operation comprises refrigeration mode and heating mode;
Be refrigeration mode and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, proceed to the step performing the Current Temperatures of described acquisition air outlet of indoor set and the first temperature difference of described design temperature.
Preferably, described mode of operation also comprises air supply pattern, and after the step of the mode of operation that described acquisition is current, described air-conditioner operation control method also comprises:
Be refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
Preferably, the step that the first correction factor that described first temperature difference of described employing is corresponding ability need current to described indoor set is revised comprises:
The first temperature difference corresponding to described mode of operation and the mapping relations of the first correction factor, determine the first correction factor that described first temperature difference of acquisition is corresponding;
The ability need current to described indoor set according to described first correction factor determined is revised.
Preferably, before the step of the Current Temperatures of described acquisition air outlet of indoor set and the first temperature difference of current design temperature, also comprise:
Obtain the Current Temperatures of indoor set air inlet and the second temperature difference of described design temperature;
The ability need current to described indoor set based on the second correction factor that described second temperature difference is corresponding is revised.
In addition, for achieving the above object, the present invention also provides a kind of air-conditioner operation control device, and this air-conditioner operation control device comprises:
First acquisition module, for the first temperature difference of the Current Temperatures and current design temperature that obtain air outlet of indoor set;
Correcting module, revises for adopting the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference;
Control module, carries out ability output, with the described design temperature making the Current Temperatures of air outlet of indoor set reach current for controlling off-premises station according to revised ability need.
Preferably, described air-conditioner operation control device also comprises the second acquisition module, and for obtaining current mode of operation, wherein, described mode of operation comprises refrigeration mode and heating mode;
Described first acquisition module is also for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, obtain the Current Temperatures of air outlet of indoor set and the first temperature difference of described design temperature.
Preferably, described mode of operation also comprises air supply pattern, described air-conditioner operation control device also comprises adjusting module, for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is less than described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
Preferably, described correcting module comprises:
Determining unit, for the mapping relations of the first temperature difference corresponding to described mode of operation and the first correction factor, determines the first correction factor that described first temperature difference that obtains is corresponding;
Amending unit, revises for the ability need current to described indoor set according to described first correction factor determined.
Preferably, described first acquisition module is also for the second temperature difference of the Current Temperatures and described design temperature that obtain indoor set air inlet;
Described correcting module is also revised for the ability need that the second correction factor corresponding based on described second temperature difference is current to described indoor set.
The present invention is by obtaining the Current Temperatures (indoor set wind pushing temperature) of air outlet of indoor set and the first temperature difference of current design temperature, the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference is adopted to revise again, revised ability need is included feature that off-premises station carries out ability output, control off-premises station to export according to revised ability need, the practical capacity of off-premises station can be made to export the ability need meeting indoor set, thus make indoor temperature maintain design temperature, improve the degree of accuracy of air-conditioner job control.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of air-conditioner operation control method first embodiment of the present invention;
The mapping relations schematic diagram that Fig. 2 is the first temperature difference in air-conditioner operation control method the 4th embodiment of the present invention corresponding to refrigeration mode and the first correction factor;
The mapping relations schematic diagram that Fig. 3 is the first temperature difference in air-conditioner operation control method the 4th embodiment of the present invention corresponding to heating mode and the first correction factor;
The mapping relations schematic diagram that Fig. 4 is the second temperature difference in air-conditioner operation control method the 5th embodiment of the present invention corresponding to refrigeration mode and the second correction factor;
The mapping relations schematic diagram that Fig. 5 is the second temperature difference in air-conditioner operation control method the 5th embodiment of the present invention corresponding to heating mode and the second correction factor;
Fig. 6 is the high-level schematic functional block diagram of air-conditioner operation control device first embodiment of the present invention.
The object of the invention realization, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of air-conditioner operation control method, with reference to Fig. 1, in the first embodiment of air-conditioner operation control method of the present invention, this air-conditioner operation control method comprises:
Step S10, obtains the Current Temperatures of air outlet of indoor set and the first temperature difference of current design temperature;
It should be noted that, because the frequency of supply of civil power is substantially constant, the compressor rotary speed of traditional air-conditioner with fixed frequency is also substantially constant, rely on and constantly " drive, stop " compressor to adjust indoor temperature, one open one stop between easily cause indoor temperature sometimes hot and sometimes cold, comfort level is lower, and can consume more electric energy.And by comparison, transducer air conditioning changes the frequency of supply of compressor by frequency converter, regulate the rotating speed of compressor.Rely on the speed of compressor rotary speed to reach the object controlling indoor temperature, energy consumption is low, fluctuations in indoor temperature is little, and its comfort level improves greatly.The air-conditioner operation control method that the present embodiment provides can be applied in the job control of transducer air conditioning, " frequency conversion " of transducer air conditioning can be made more accurate, namely make the ability of off-premises station export the practical capacity demand that can meet indoor set all the time, promote the comfortableness of air-conditioning system further.
In the present embodiment, be provided with temperature sensor, for the temperature of air outlet described in Real-time Collection at the air outlet place of described indoor set.Such as, the present embodiment is provided with platinum resistance temperature sensor at the air outlet place of described indoor set.It will be appreciated by persons skilled in the art that in other embodiments, the temperature sensor adopted can be selected according to actual needs, such as, the temperature sensor of copper resistance temperature sensor or other types can also be adopted.
When collecting the Current Temperatures of described air outlet of indoor set, calculate the Current Temperatures of described air outlet of indoor set and the first temperature difference of current design temperature.Wherein, described design temperature expects the temperature that environment residing for indoor set maintains for user, i.e. indoor temperature, such as, user expects that indoor temperature maintains 15 DEG C, then described design temperature can be adjusted to 15 DEG C.
Step S20, adopts the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference to revise;
It should be noted that, air-conditioner generally has multiple-working mode, comprise refrigeration mode, heating mode, air supply pattern and dehumidification mode etc., but the off-premises station of air-conditioner is only in air-conditioner refrigeration or work when heating, namely air-conditioner only carries out heat exchange when being positioned at refrigeration mode or heating mode.Air-conditioner maintains same design temperature for making indoor temperature, and its heat exchange amount under refrigeration mode and heating mode is different.Accordingly, in the present embodiment, the mapping relations of described first temperature difference and described first correction factor are preset with respectively based on refrigeration mode and heating mode, wherein, described first correction factor is empirical coefficient, is to carry out the preferred gained of experimental result of great many of experiments in the Air conditioner design stage.
After the first temperature difference of the Current Temperatures and current design temperature that get described air outlet of indoor set, determine based on the described mapping relations that the mode of operation that air-conditioner is current is corresponding the first correction factor that described first temperature difference is corresponding, re-use and determine that the ability need current to described indoor set of described first correction factor is revised.Wherein, the current ability need of described indoor set is that described indoor set is determined according to the Current Temperatures (i.e. indoor temperature) of described indoor set air inlet and the second temperature difference of described design temperature, specifically can refer to prior art, repeats no more herein.
Such as, be a measurement unit with the every 1HP () of indoor set, revised ability need:
E c=E n+i;
Wherein, 1HP approximates 735W (watt), E crepresent revised ability need, E nrepresent that the ability need that described indoor set is current, i represent described first correction factor.
Step S30, controls off-premises station according to revised ability need and carries out ability output, with the described design temperature making the Current Temperatures of air outlet of indoor set reach current.
After completing the correction to described indoor set current ability demand, control off-premises station according to revised ability need and carry out ability output, such as, the current ability need of described indoor set is 2HP, revised ability need is 2.1HP, then control described off-premises station and carry out ability output according to 2.1HP.
In other embodiments, can also comprise before above-mentioned steps S10:
When starting shooting and be set as refrigeration mode or heating mode, opening after described indoor set runs preset time period and opening described off-premises station again.
It should be noted that, the object making indoor set run in advance is, makes room air circulation before off-premises station runs, to fall indoor temperature/rise to the temperature of user's setting faster.In addition, when again opening after it will be appreciated by persons skilled in the art that or shutdown standby at air-conditioner, in indoor set, leave over liquid refrigerant, if indoor set and off-premises station are opened simultaneously, refrigerant may be there is and enter compressor in liquid form, cause the problem of compressor fault, in view of this, open described indoor set in advance, make refrigerant circulation before off-premises station runs, to avoid refrigerant to enter compressor in liquid form, cause the problem of compressor fault.Wherein, described preset time period can be arranged according to actual needs, such as, can be set to 60 seconds.
The air-conditioner operation control method that the present embodiment proposes, by obtaining the Current Temperatures (indoor set wind pushing temperature) of air outlet of indoor set and the first temperature difference of current design temperature, the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference is adopted to revise again, revised ability need is included feature that off-premises station carries out ability output, control off-premises station to export according to revised ability need, the practical capacity of off-premises station can be made to export the ability need meeting indoor set, thus make indoor temperature maintain design temperature, improve the degree of accuracy of air-conditioner job control.
Further, based on the first embodiment, propose the second embodiment of air-conditioner operation control method of the present invention, in the present embodiment, before above-mentioned steps S10, also comprise:
Obtain current mode of operation, wherein, described mode of operation comprises refrigeration mode and heating mode;
Be refrigeration mode and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, proceeds to and perform above-mentioned steps S10.
Well-known, air-conditioner generally has multiple-working mode, comprise refrigeration mode, heating mode, air supply pattern and dehumidification mode etc., but the off-premises station of air-conditioner is only in air-conditioner refrigeration or work when heating, namely air-conditioner only carries out heat exchange when being positioned at refrigeration mode or heating mode.
In the present embodiment, the air inlet of described indoor set is provided with temperature sensor, for the temperature of air inlet described in Real-time Collection.Such as, the present embodiment is provided with platinum resistance temperature sensor in the air inlet of described indoor set.It will be appreciated by persons skilled in the art that in other embodiments, the temperature sensor adopted can be selected according to actual needs, such as, the temperature sensor of copper resistance temperature sensor or other types can also be adopted.
It should be noted that, in the practical work process of air-conditioner, usually using the indoor temperature of the temperature of indoor set air inlet as environment residing for indoor set.It is easily understood that when the current operation mode of air-conditioner is refrigeration mode and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature, illustrate that current indoor temperature expects the indoor temperature maintained higher than user; When the current operation mode of air-conditioner is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, illustrate that current indoor temperature expects the indoor temperature maintained lower than user.When indoor temperature is different from user's preferred temperature, needs to enter air-conditioner job control flow process, make indoor temperature can maintain user's preferred temperature.Therefore, in the present embodiment, be refrigeration mode and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, proceed to and perform above-mentioned steps S10, start the job control flow process of air-conditioner.
Further, based on the second embodiment, the 3rd embodiment of air-conditioner operation control method of the present invention is proposed, in the present embodiment, described mode of operation also comprises air supply pattern, and after the step of the mode of operation that described acquisition is current, described air-conditioner operation control method also comprises:
Be refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
Based on the description of previous embodiment, it will be understood by those skilled in the art that, when the current operation mode of air-conditioner is refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature, illustrate that current indoor temperature expects the indoor temperature maintained lower than user, do not need to continue refrigeration; When the current operation mode of air-conditioner is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, illustrates that current indoor temperature expects the indoor temperature maintained higher than user, do not need to continue to heat.
It should be noted that, when air-conditioner runs on air supply pattern, off-premises station does not run, only indoor set fan operation, reaches the object of more inletting fresh air.But, there is the situation that air-conditioner is multi-connected machine central air-conditioning, central air-conditioning connects two or more indoor set by an off-premises station by pipe arrangement usually, when controlling an indoor set, for not affecting the normal work of other indoor set, in the present embodiment, be refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
Wherein, described default opening value comprises first and presets opening value and the second default opening value, respectively corresponding refrigeration mode and heating mode, and the default opening value that the described aperture by electric expansion valve corresponding for described indoor set is adjusted to described mode of operation corresponding comprises:
When described mode of operation is refrigeration mode, the aperture of electric expansion valve corresponding for described indoor set is adjusted to first and presets opening value (such as, the aperture of electric expansion valve corresponding for described indoor set is adjusted to 0P, namely close, continue to avoid refrigerant to enter indoor set, cause indoor temperature to continue to reduce);
When described mode of operation is heating mode, the aperture of electric expansion valve corresponding for described indoor set is adjusted to second and presets opening value (such as, the aperture of electric expansion valve corresponding for described indoor set is adjusted to 96P, make a small amount of refrigerant continue to enter indoor set, and then make indoor temperature be reduced to the indoor temperature of user's expectation slowly).
The present embodiment carries out the adjustment of mode of operation based on the Current Temperatures of described indoor set air inlet and current design temperature, and the electric expansion valve of tackling indoor set corresponding mutually carries out aperture adjustment, further can promote the comfortableness of air-conditioner set.
Further, based on the first or second embodiment, propose the 4th embodiment of air-conditioner operation control method of the present invention, in the present embodiment, above-mentioned steps S20 comprises:
The first temperature difference corresponding to described mode of operation and the mapping relations of the first correction factor, determine the first correction factor that described first temperature difference of acquisition is corresponding;
The ability need current to described indoor set according to described first correction factor determined is revised.
It should be noted that, in the present embodiment, the mapping relations of described first temperature difference and described first correction factor are preset with respectively based on refrigeration mode and heating mode, wherein, described first correction factor is empirical coefficient, is to carry out the preferred gained of experimental result of great many of experiments in the Air conditioner design stage.With reference to Fig. 2, provide the mapping relations schematic diagram of the first temperature difference corresponding to refrigeration mode and the first correction factor, such as, when described first temperature difference obtained is 5 DEG C, first correction factor value is 3, and when described first temperature difference obtained is-8 DEG C, the first correction factor value is-3; With reference to Fig. 3, provide the mapping relations schematic diagram of the first temperature difference corresponding to heating mode and the first correction factor, such as, when described first temperature difference obtained is 6 DEG C, first correction factor value is-3, when described first temperature difference obtained is-12 DEG C, the first correction factor value is 4.
After getting described first temperature difference, the mapping relations of the first temperature difference and the first correction factor adopted are determined based on the mode of operation that air-conditioner is current, and then determine the first correction factor that described first temperature difference of acquisition is corresponding, ability need current to described indoor set according to described first correction factor determined again is revised, such as, the current operation mode of air-conditioner is refrigeration mode, the first temperature difference obtained is 2 DEG C, the current ability need of above-mentioned indoor set is 3HP, revised ability need E c=E n+ i=(3+1) HP, i.e. 4HP.
Further, based on the first embodiment, propose the 5th embodiment of air-conditioner control method of the present invention, in the present embodiment, before above-mentioned steps S10, also comprise:
Obtain the Current Temperatures of indoor set air inlet and the second temperature difference of described design temperature;
The ability need current to described indoor set based on the second correction factor that described second temperature difference is corresponding is revised.
It should be noted that, the difference of the present embodiment and the first embodiment is, the present embodiment, before the ability need current to described indoor set based on described first temperature difference is revised, first carries out initial correction based on the ability need that described second temperature difference is current to described indoor set.
In the present embodiment, the air inlet of described indoor set is provided with temperature sensor, for the temperature of air inlet described in Real-time Collection.Such as, the present embodiment is provided with platinum resistance temperature sensor in the air inlet of described indoor set.It will be appreciated by persons skilled in the art that in other embodiments, the temperature sensor adopted can be selected according to actual needs, such as, the temperature sensor of copper resistance temperature sensor or other types can also be adopted.
In addition, the mapping relations of described second temperature difference and described second correction factor are preset with respectively based on refrigeration mode and heating mode, wherein, described second correction factor is empirical coefficient, is to carry out the preferred gained of experimental result of great many of experiments in the Air conditioner design stage.With reference to Fig. 4, provide the mapping relations schematic diagram of the second temperature difference corresponding to refrigeration mode and the second correction factor, such as, when described second temperature difference obtained is 7 DEG C, second correction factor value is 1.4, when described second temperature difference obtained is 1 DEG C, the second correction factor value is 1.1; With reference to Fig. 5, provide the mapping relations schematic diagram of the second temperature difference corresponding to heating mode and the second correction factor, such as, when described second temperature difference obtained is-3 DEG C, second correction factor value is 1.1, when described second temperature difference obtained is-12 DEG C, the second correction factor value is 1.4.After getting described second temperature difference, the mapping relations of the second temperature difference and the second correction factor adopted are determined based on the mode of operation that air-conditioner is current, and then determine the second correction factor that described second temperature difference of acquisition is corresponding, initial correction is carried out in ability need current to described indoor set according to described second correction factor determined again, and ability need current for described indoor set is updated to revised described ability need.Wherein, revised ability need E c=E n* j;
E crepresent revised ability need, E nrepresent that the ability need that described indoor set is current, j represent described second correction factor.
In the present embodiment, the E in above-mentioned steps S20 c=E n* j+i.
The present embodiment carries out initial correction by adopting the ability need current to described indoor set of described second correction factor, ability need current for described indoor set is updated to revised described ability need, the ability need current to described indoor set of described first correction factor is adopted to revise again, control described off-premises station according to revised ability need and carry out ability output, further can promote the degree of accuracy of air-conditioner job control.
The present invention also provides a kind of air-conditioner operation control device, and with reference to Fig. 6, in the first embodiment of air-conditioner operation control device of the present invention, described air-conditioner operation control device comprises:
First acquisition module 10, for the first temperature difference of the Current Temperatures and current design temperature that obtain air outlet of indoor set;
It should be noted that, because the frequency of supply of civil power is substantially constant, the compressor rotary speed of traditional air-conditioner with fixed frequency is also substantially constant, rely on and constantly " drive, stop " compressor to adjust indoor temperature, one open one stop between easily cause indoor temperature sometimes hot and sometimes cold, comfort level is lower, and can consume more electric energy.And by comparison, transducer air conditioning changes the frequency of supply of compressor by frequency converter, regulate the rotating speed of compressor.Rely on the speed of compressor rotary speed to reach the object controlling indoor temperature, energy consumption is low, fluctuations in indoor temperature is little, and its comfort level improves greatly.The air-conditioner operation control device that the present embodiment provides is built in air-conditioner and runs, can be applied in the job control of transducer air conditioning, " frequency conversion " of transducer air conditioning can be made more accurate, namely make the ability of off-premises station export the practical capacity demand that can meet indoor set all the time, promote the comfortableness of air-conditioning system further.
In the present embodiment, be provided with temperature sensor, for the temperature of air outlet described in Real-time Collection at the air outlet place of described indoor set.Such as, the present embodiment is provided with platinum resistance temperature sensor at the air outlet place of described indoor set.It will be appreciated by persons skilled in the art that in other embodiments, the temperature sensor adopted can be selected according to actual needs, such as, the temperature sensor of copper resistance temperature sensor or other types can also be adopted.
When collecting the Current Temperatures of described air outlet of indoor set based on described temperature sensor, the first acquisition module 10 calculates the Current Temperatures of described air outlet of indoor set and the first temperature difference of current design temperature.Wherein, described design temperature expects the temperature that environment residing for indoor set maintains for user, i.e. indoor temperature, such as, user expects that indoor temperature maintains 15 DEG C, then described design temperature can be adjusted to 15 DEG C.
Correcting module 20, revises for adopting the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference;
It should be noted that, air-conditioner generally has multiple-working mode, comprise refrigeration mode, heating mode, air supply pattern and dehumidification mode etc., but the off-premises station of air-conditioner is only in air-conditioner refrigeration or work when heating, namely air-conditioner only carries out heat exchange when being positioned at refrigeration mode or heating mode.Air-conditioner maintains same design temperature for making indoor temperature, and its heat exchange amount under refrigeration mode and heating mode is different.Accordingly, in the present embodiment, the mapping relations of described first temperature difference and described first correction factor are preset with respectively based on refrigeration mode and heating mode, wherein, described first correction factor is empirical coefficient, is to carry out the preferred gained of experimental result of great many of experiments in the Air conditioner design stage.
After described first acquisition module 10 gets the Current Temperatures of described air outlet of indoor set and the first temperature difference of current design temperature, correcting module 20 determines based on the described mapping relations that the mode of operation that air-conditioner is current is corresponding the first correction factor that described first temperature difference is corresponding, re-uses and determines that the ability need current to described indoor set of described first correction factor is revised.Wherein, the current ability need of described indoor set is that described indoor set is determined according to the Current Temperatures (i.e. indoor temperature) of described indoor set air inlet and the second temperature difference of described design temperature, specifically can refer to prior art, repeats no more herein.
Such as, be a measurement unit with the every 1HP () of indoor set, revised ability need:
E c=E n+i;
Wherein, 1HP approximates 735W (watt), E crepresent revised ability need, E nrepresent that the ability need that described indoor set is current, i represent described first correction factor.
Control module 30, carries out ability output, with the described design temperature making the Current Temperatures of air outlet of indoor set reach current for controlling off-premises station according to revised ability need.
After the correction that described correcting module 20 completes described indoor set current ability demand, control module 30 controls off-premises station according to revised ability need and carries out ability output, such as, the current ability need of described indoor set is 2HP, revised ability need is 2.1HP, then described control module 30 controls described off-premises station and carries out ability output according to 2.1HP.
In other embodiments, described control module 30, also for when starting shooting and be set as refrigeration mode or heating mode, being opened after described indoor set runs preset time period and being opened described off-premises station again.
It should be noted that, the object making indoor set run in advance is, makes room air circulation before off-premises station runs, to fall indoor temperature/rise to the temperature of user's setting faster.In addition, when again opening after it will be appreciated by persons skilled in the art that or shutdown standby at air-conditioner, in indoor set, leave over liquid refrigerant, if indoor set and off-premises station are opened simultaneously, refrigerant may be there is and enter compressor in liquid form, cause the problem of compressor fault, in view of this, open described indoor set in advance, make refrigerant circulation before off-premises station runs, to avoid refrigerant to enter compressor in liquid form, cause the problem of compressor fault.Wherein, described preset time period can be arranged according to actual needs, such as, can be set to 60 seconds.
The air-conditioner operation control device that the present embodiment proposes, by obtaining the Current Temperatures (indoor set wind pushing temperature) of air outlet of indoor set and the first temperature difference of current design temperature, the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference is adopted to revise again, revised ability need is included feature that off-premises station carries out ability output, control off-premises station to export according to revised ability need, the practical capacity of off-premises station can be made to export the ability need meeting indoor set, thus make indoor temperature maintain design temperature, improve the degree of accuracy of air-conditioner job control.
Further, based on the first embodiment, second embodiment of air-conditioner operation control device of the present invention is proposed, in the present embodiment, described air-conditioner operation control device also comprises the second acquisition module, for obtaining current mode of operation, wherein, described mode of operation comprises refrigeration mode and heating mode;
Described first acquisition module 10 is also for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, obtain the Current Temperatures of air outlet of indoor set and the first temperature difference of described design temperature.
Well-known, air-conditioner generally has multiple-working mode, comprise refrigeration mode, heating mode, air supply pattern and dehumidification mode etc., but the off-premises station of air-conditioner is only in air-conditioner refrigeration or work when heating, namely air-conditioner only carries out heat exchange when being positioned at refrigeration mode or heating mode.
In the present embodiment, the air inlet of described indoor set is provided with temperature sensor, for the temperature of air inlet described in Real-time Collection.Such as, the present embodiment is provided with platinum resistance temperature sensor in the air inlet of described indoor set.It will be appreciated by persons skilled in the art that in other embodiments, the temperature sensor adopted can be selected according to actual needs, such as, the temperature sensor of copper resistance temperature sensor or other types can also be adopted.
It should be noted that, in the practical work process of air-conditioner, usually using the indoor temperature of the temperature of indoor set air inlet as environment residing for indoor set.It is easily understood that when the current operation mode of air-conditioner is refrigeration mode and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature, illustrate that current indoor temperature expects the indoor temperature maintained higher than user; When the current operation mode of air-conditioner is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, illustrate that current indoor temperature expects the indoor temperature maintained lower than user.When indoor temperature is different from user's preferred temperature, needs to enter air-conditioner job control flow process, make indoor temperature can maintain user's preferred temperature.Therefore, in the present embodiment, described first acquisition module 10 is also for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, obtain the Current Temperatures of air outlet of indoor set and the first temperature difference of described design temperature, start the job control flow process of air-conditioner.
Further, based on the second embodiment, 3rd embodiment of air-conditioner operation control device of the present invention is proposed, in the present embodiment, described mode of operation also comprises air supply pattern, described air-conditioner operation control device also comprises adjusting module, for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is less than described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
Based on the description of previous embodiment, it will be understood by those skilled in the art that, when the current operation mode of air-conditioner is refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature, illustrate that current indoor temperature expects the indoor temperature maintained lower than user, do not need to continue refrigeration; When the current operation mode of air-conditioner is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, illustrates that current indoor temperature expects the indoor temperature maintained higher than user, do not need to continue to heat.
It should be noted that, when air-conditioner runs on air supply pattern, off-premises station does not run, only indoor set fan operation, reaches the object of more inletting fresh air.But, there is the situation that air-conditioner is multi-connected machine central air-conditioning, common, central air-conditioning connects two or more indoor set by an off-premises station by pipe arrangement, when controlling an indoor set, for not affecting the normal work of other indoor set, in the present embodiment, be refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to default opening value corresponding to described mode of operation by adjusting module, and described mode of operation is switched to air supply pattern.
Wherein, described default opening value comprises first and presets opening value and the second default opening value, corresponding refrigeration mode and heating mode respectively, the default opening value that the aperture of electric expansion valve corresponding for described indoor set is adjusted to described mode of operation corresponding by described adjusting module comprises:
When described mode of operation is refrigeration mode, the aperture of electric expansion valve corresponding for described indoor set is adjusted to first and presets opening value (such as by described adjusting module, the aperture of electric expansion valve corresponding for described indoor set is adjusted to 0P, namely close, continue to avoid refrigerant to enter indoor set, cause indoor temperature to continue to reduce);
When described mode of operation is heating mode, the aperture of electric expansion valve corresponding for described indoor set is adjusted to second and presets opening value (such as by described adjusting module, the aperture of electric expansion valve corresponding for described indoor set is adjusted to 96P, make a small amount of refrigerant continue to enter indoor set, and then make indoor temperature be reduced to the indoor temperature of user's expectation slowly).
The present embodiment carries out the adjustment of mode of operation based on the Current Temperatures of described indoor set air inlet and current design temperature, and the electric expansion valve of tackling indoor set corresponding mutually carries out aperture adjustment, further can promote the comfortableness of air-conditioner set.
Further, based on the first or second embodiment, propose the 4th embodiment of air-conditioner operation control device of the present invention, in the present embodiment, described correcting module 20 comprises:
Determining unit, for the mapping relations of the first temperature difference corresponding to described mode of operation and the first correction factor, determines the first correction factor that described first temperature difference that obtains is corresponding;
Amending unit, revises for the ability need current to described indoor set according to described first correction factor determined.
It should be noted that, in the present embodiment, the mapping relations of described first temperature difference and described first correction factor are preset with respectively based on refrigeration mode and heating mode, wherein, described first correction factor is empirical coefficient, is to carry out the preferred gained of experimental result of great many of experiments in the Air conditioner design stage.With reference to Fig. 2, provide the mapping relations schematic diagram of the first temperature difference corresponding to refrigeration mode and the first correction factor, such as, when described first temperature difference obtained is 5 DEG C, first correction factor value is 3, and when described first temperature difference obtained is-8 DEG C, the first correction factor value is-3; With reference to Fig. 3, provide the mapping relations schematic diagram of the first temperature difference corresponding to heating mode and the first correction factor, such as, when described first temperature difference obtained is 6 DEG C, first correction factor value is-3, when described first temperature difference obtained is-12 DEG C, the first correction factor value is 4.
After getting described first temperature difference, determining unit determines the mapping relations of the first temperature difference and the first correction factor adopted based on the mode of operation that air-conditioner is current, and then determine the first correction factor that described first temperature difference of acquisition is corresponding, current to described indoor set according to described first correction factor determined the again ability need of amending unit is revised, such as, the current operation mode of air-conditioner is refrigeration mode, the first temperature difference that described first acquisition module 10 obtains is 2 DEG C, the current ability need of above-mentioned indoor set is 3HP, the revised ability need E of amending unit c=E n+ i=(3+1) HP, i.e. 4HP.
Further, based on the first embodiment, propose the 5th embodiment of air conditioner controlling device of the present invention, in the present embodiment, described first acquisition module 10 is also for the second temperature difference of the Current Temperatures and described design temperature that obtain indoor set air inlet;
Described correcting module 20 is also revised for the ability need that the second correction factor corresponding based on described second temperature difference is current to described indoor set.
It should be noted that, the difference of the present embodiment and the first embodiment is, the present embodiment, before the ability need current to described indoor set based on described first temperature difference is revised, first carries out initial correction based on the ability need that described second temperature difference is current to described indoor set.
In the present embodiment, the air inlet of described indoor set is provided with temperature sensor, for the temperature of air inlet described in Real-time Collection.Such as, the present embodiment is provided with platinum resistance temperature sensor in the air inlet of described indoor set.It will be appreciated by persons skilled in the art that in other embodiments, the temperature sensor adopted can be selected according to actual needs, such as, the temperature sensor of copper resistance temperature sensor or other types can also be adopted.
In addition, the mapping relations of described second temperature difference and described second correction factor are preset with respectively based on refrigeration mode and heating mode, wherein, described second correction factor is empirical coefficient, is to carry out the preferred gained of experimental result of great many of experiments in the Air conditioner design stage.With reference to Fig. 4, provide the mapping relations schematic diagram of the second temperature difference corresponding to refrigeration mode and the second correction factor, such as, when described second temperature difference obtained is 7 DEG C, second correction factor value is 1.4, when described second temperature difference obtained is 1 DEG C, the second correction factor value is 1.1; With reference to Fig. 5, provide the mapping relations schematic diagram of the second temperature difference corresponding to heating mode and the second correction factor, such as, when described second temperature difference obtained is-3 DEG C, second correction factor value is 1.1, when described second temperature difference obtained is-12 DEG C, the second correction factor value is 1.4.After described first acquisition module 10 gets described second temperature difference, described correcting module 20 determines the mapping relations of the second temperature difference and the second correction factor adopted based on the mode of operation that air-conditioner is current, and then determine the second correction factor that described second temperature difference of acquisition is corresponding, initial correction is carried out in ability need current to described indoor set according to described second correction factor determined again, and ability need current for described indoor set is updated to revised described ability need.Wherein, the revised ability need E of described correcting module 20 c=E n* j;
E crepresent revised ability need, E nrepresent that the ability need that described indoor set is current, j represent described second correction factor.
In the present embodiment, described correcting module 20 based on the first correction factor corresponding to described first temperature difference, the ability need E that the described indoor set revised of the ability need current to described indoor set is current n=E n* j.
The present embodiment carries out initial correction by adopting the ability need current to described indoor set of described second correction factor, ability need current for described indoor set is updated to revised described ability need, the ability need current to described indoor set of described first correction factor is adopted to revise again, control described off-premises station according to revised ability need and carry out ability output, further can promote the degree of accuracy of air-conditioner job control.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (10)

1. an air-conditioner operation control method, is characterized in that, described air-conditioner operation control method comprises the following steps:
Obtain the Current Temperatures of air outlet of indoor set and the first temperature difference of current design temperature;
The ability need current to described indoor set of the first correction factor corresponding to described first temperature difference is adopted to revise;
Control off-premises station according to revised ability need and carry out ability output, with the described design temperature making the Current Temperatures of air outlet of indoor set reach current.
2. air-conditioner operation control method as claimed in claim 1, is characterized in that, before the step of the Current Temperatures of described acquisition air outlet of indoor set and the first temperature difference of current design temperature, also comprise:
Obtain current mode of operation, wherein, described mode of operation comprises refrigeration mode and heating mode;
Be refrigeration mode and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, proceed to the step performing the Current Temperatures of described acquisition air outlet of indoor set and the first temperature difference of described design temperature.
3. air-conditioner operation control method as claimed in claim 2, it is characterized in that, described mode of operation also comprises air supply pattern, and after the step of the mode of operation that described acquisition is current, described air-conditioner operation control method also comprises:
Be refrigeration mode and the Current Temperatures of described indoor set air inlet is less than described design temperature in described mode of operation, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
4. air-conditioner operation control method as claimed in claim 2, is characterized in that, the step that the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference of described employing is revised comprises:
The first temperature difference corresponding to described mode of operation and the mapping relations of the first correction factor, determine the first correction factor that described first temperature difference of acquisition is corresponding;
The ability need current to described indoor set according to described first correction factor determined is revised.
5. air-conditioner operation control method as claimed in claim 1, is characterized in that, before the step of the Current Temperatures of described acquisition air outlet of indoor set and the first temperature difference of current design temperature, also comprise:
Obtain the Current Temperatures of indoor set air inlet and the second temperature difference of described design temperature;
The ability need current to described indoor set based on the second correction factor that described second temperature difference is corresponding is revised.
6. an air-conditioner operation control device, is characterized in that, described air-conditioner operation control device comprises:
First acquisition module, for the first temperature difference of the Current Temperatures and current design temperature that obtain air outlet of indoor set;
Correcting module, revises for adopting the ability need current to described indoor set of the first correction factor corresponding to described first temperature difference;
Control module, carries out ability output, with the described design temperature making the Current Temperatures of air outlet of indoor set reach current for controlling off-premises station according to revised ability need.
7. air-conditioner operation control device as claimed in claim 6, it is characterized in that, described air-conditioner operation control device also comprises the second acquisition module, and for obtaining current mode of operation, wherein, described mode of operation comprises refrigeration mode and heating mode;
Described first acquisition module is also for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is more than or equal to described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is less than or equal to described design temperature, obtain the Current Temperatures of air outlet of indoor set and the first temperature difference of described design temperature.
8. air-conditioner operation control device as claimed in claim 7, it is characterized in that, described mode of operation also comprises air supply pattern, described air-conditioner operation control device also comprises adjusting module, for being refrigeration mode in described mode of operation and the Current Temperatures of described indoor set air inlet is less than described design temperature, or when described mode of operation is heating mode and the Current Temperatures of described indoor set air inlet is greater than described design temperature, the aperture of electric expansion valve corresponding for described indoor set is adjusted to the default opening value that described mode of operation is corresponding, and described mode of operation is switched to air supply pattern.
9. air-conditioner operation control device as claimed in claim 7, it is characterized in that, described correcting module comprises:
Determining unit, for the mapping relations of the first temperature difference corresponding to described mode of operation and the first correction factor, determines the first correction factor that described first temperature difference that obtains is corresponding;
Amending unit, revises for the ability need current to described indoor set according to described first correction factor determined.
10. air-conditioner operation control device as claimed in claim 6, is characterized in that, described first acquisition module is also for the second temperature difference of the Current Temperatures and described design temperature that obtain indoor set air inlet;
Described correcting module is also revised for the ability need that the second correction factor corresponding based on described second temperature difference is current to described indoor set.
CN201610009019.1A 2016-01-04 2016-01-04 Operation control method and device for air conditioner Pending CN105571068A (en)

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