CN114183889B - Control method and control device of air conditioner and air conditioner - Google Patents
Control method and control device of air conditioner and air conditioner Download PDFInfo
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- CN114183889B CN114183889B CN202111586476.4A CN202111586476A CN114183889B CN 114183889 B CN114183889 B CN 114183889B CN 202111586476 A CN202111586476 A CN 202111586476A CN 114183889 B CN114183889 B CN 114183889B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control 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
- F24F11/77—Control 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
According to the control method and the control device for the air conditioner, provided by the invention, parameters such as the interval of three continuous opening cycles of temperature reaching stop, temperature returning start, temperature reaching stop and temperature returning start are recorded, and the matching fitness between the maintenance structure of the room building where the air conditioner is located and the original control of the air conditioner is judged after calculation and comparison treatment, so that the control of the temperature reaching stop is adjusted, the frequent start and stop of the compressor is avoided, the long-term reliability of the compressor and an air conditioning system is improved, and the capacity demand, the temperature reaching stop and the temperature returning start operation temperature of the air conditioner at the time are calculated by adopting steps based on different set temperature intervals, so that the energy conservation is facilitated, and the comfortable and healthy room temperature is realized for users.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device of an air conditioner and the air conditioner.
Background
At present, the commercial central air conditioner is widely applied to public places such as offices, and each user can control part of indoor units through a remote controller or a mobile phone, if the temperature is set unreasonably, the power consumption of the air conditioner can be increased, further the resource waste can be caused, and the research at present shows that in summer, the air conditioner can save energy by 5% -7% approximately when the temperature is increased by 1 ℃; if the air conditioner runs at high power for a long time, the service life of the air conditioner is seriously affected, for example, in summer, if the temperature set by the air conditioner in a refrigerating mode is 16 ℃, the indoor and outdoor temperature difference is too large, and a user is in an environment with low temperature for a long time, so that the user experience is also affected. Under the background of the state great demand for energy conservation, the energy conservation of the air conditioner is very important, and suggestions of not lower than a recommended value of the set temperature of the air conditioner are advocated in the whole country in 2020, such as the recommended user setting 26-28 ℃ for refrigeration, but the compensation value of the indoor return air temperature and the set temperature of the user in the prior art is fixed, and the user generally has the idea that the lower the set temperature is, the faster the temperature is cooled. When the set temperature is lower, such as 22 ℃, if the capacity requirement and the temperature-reaching shutdown temperature are calculated according to the fixed compensation value, energy waste can be caused, and health hidden troubles such as catching a cold can be caused because a customer cannot adjust the set temperature in time.
However, in the prior art, there is generally a mapping relation between a user set temperature and an up-temperature shutdown temperature and a return-temperature startup temperature in the control of the refrigerating or heating operation process of the air conditioner, when a certain temperature is set by the user, a temperature measurement point near the return air inlet of the air conditioner measures the return air temperature of the room in real time or at a fixed time, and compares the temperature with the up-temperature shutdown temperature in the mapping relation, for example, if the return air temperature drops to or below the up-temperature shutdown temperature, the compressor is stopped to keep the inner fan running continuously. When the return air temperature rises to be higher than the starting temperature, the compressor is started to run again. Such a room temperature fluctuation is stabilized and the compressor is frequently started at intervals. However, the start-up interval of the compressor cannot be too small, and too frequent start-up and shut-down is detrimental to the long-term reliability of the compressor and the entire air conditioning and refrigeration system. The reason why the compressor is started and stopped for a small time interval up to Wen Pinfan in actual use is that the difference between the temperature of the stopped air conditioner and Wen Kaiji in control logic is small, and the heat insulation condition of the maintenance structure of the room or the building where the air conditioner is located is also important. When the air conditioner has strong rapid refrigerating and heating capability, but the room maintenance structure where the air conditioner is located has poor heat preservation and insulation performance, the interval reaching Wen Tingji is obviously shortened, so that the air conditioner is started and stopped too frequently.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention aims to provide a control method and device for an air conditioner and the air conditioner.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a control method of an air conditioner, which comprises the following steps:
s1, after receiving a start-up and mode instruction, an air conditioner acquires a user set temperature value ts, a compressor operation time t0 before first temperature reaching and stopping, a first temperature reaching and stopping time interval delta t1, a first temperature returning start-up operation time interval delta t1', a second temperature reaching and stopping time interval delta t2, a second temperature returning start-up operation time interval delta t2', a third temperature reaching and stopping time interval delta t3 and a third temperature returning start-up operation time interval delta t3';
s2, calculating a three-time temperature reaching stop time interval average value delta ta according to the first temperature reaching stop time interval delta t1, the second temperature reaching stop time interval delta t2 and the third temperature reaching stop time interval delta t 3;
calculating a mean value delta t 'a of the three tempering starting-up operation time intervals according to the first tempering starting-up operation time interval delta t1', the second tempering starting-up operation time interval delta t2 'and the third tempering starting-up operation time interval delta t3';
s3, judging the average value delta ta of the three-time temperature reaching and stopping time interval and the minimum preset time interval delta tamin of the compressor stopping, and judging the size relation between the average value delta t 'a of the three-time temperature returning and starting operation time interval and the minimum preset time interval delta t' amin of the temperature returning and starting operation of the compressor;
s4, executing a temperature precise control mode according to the judging result.
Preferably, the minimum preset time interval deltatamin between the shutdown of the compressor and the minimum preset time interval deltat' amin between the startup and the operation of the compressor at the temperature are both preset time intervals based on long-term operation data of the compressor.
Preferably, the temperature accurate control mode includes: if the average value delta ta of the three reaching temperature stopping time intervals is more than or equal to the minimum preset time interval delta tamin of the compressor stopping and the average value delta T 'a of the three returning temperature starting operation time intervals is more than or equal to the minimum preset time interval delta T' amin of the returning temperature starting operation of the compressor, the capacity requirement and the reaching temperature stopping control scheme in the air conditioner are reserved, and the reaching temperature stopping and returning temperature starting conditions of the compressor of the air conditioner are judged according to the compensating difference value mapping relation interval of the user set temperature ts and the returning temperature T1;
if any condition that the average value delta ta of the three reaching temperature stopping time intervals is smaller than the minimum preset time interval delta tamin of the compressor stopping or the average value delta t 'a of the three returning temperature starting operation time intervals is smaller than the minimum preset time interval delta t' amin of the returning temperature starting operation of the compressor is met, judging whether fault protection occurs during the period from the starting operation to the continuous three reaching temperature stopping and returning temperature starting operation.
Preferably, the minimum preset time interval Δtamin for the compressor to stop is set to 3min.
Preferably, the minimum preset time interval delta t' amin of the temperature-returning start-up operation of the compressor is set to be 5min.
Preferably, the method further comprises: the judging whether fault protection occurs during the period from starting operation to continuous three-time temperature-reaching shutdown and temperature-returning starting operation comprises the following steps: if the air conditioner is not stopped due to fault protection, the matching between the room building maintenance structure where the air conditioner is positioned and the original temperature reaching stop control scheme of the air conditioner is judged to be low, the compressor is started and stopped too frequently, and capacity requirements and Wen Tingji control are adopted.
Preferably, the temperature accurate control mode further includes: if the average delta ta of the three reaching temperature stopping time intervals is smaller than the minimum preset time interval delta tamin of the compressor stopping and the average delta t 'a of the three returning temperature starting operation time intervals is smaller than the minimum preset time interval delta t' amin of the returning temperature starting operation of the compressor, and no protection stopping occurs in the continuous three reaching temperature stopping process, adding a correction value delta f according to the reaching temperature stopping energy standard value, canceling reaching Wen Tingji, and adding the correction value delta f on the reaching Wen Tingji interval standard value.
Preferably, the difference between the user set temperature ts and the return air temperature T1 is larger as the user set temperature ts is higher.
The invention also provides a control device of the air conditioner, which applies the control method, and comprises the following steps:
the acquisition module is used for acquiring a user set temperature value ts, a compressor running time t0 before the first temperature reaching shutdown, a first temperature reaching shutdown time interval delta t1, a first temperature returning startup running time interval delta t1', a second temperature reaching shutdown time interval delta t2, a second temperature returning startup running time interval delta t2', a third temperature reaching shutdown time interval delta t3 and a third temperature returning startup running time interval delta t3';
the calculation module is used for calculating a three-time temperature reaching stop time interval average value delta ta according to the first temperature reaching stop time interval delta t1, the second temperature reaching stop time interval delta t2 and the third temperature reaching stop time interval delta t 3;
calculating a mean value delta t 'a of the three tempering starting-up operation time intervals according to the first tempering starting-up operation time interval delta t1', the second tempering starting-up operation time interval delta t2 'and the third tempering starting-up operation time interval delta t3';
the judging module is used for judging the average value delta ta of the three-time reaching temperature stop time interval and the minimum preset time interval delta tamin of the compressor stop and judging the size relation between the average value delta t 'a of the three-time returning temperature start-up running time interval and the minimum preset time interval delta t' amin of the returning temperature start-up running of the compressor;
and the execution module is used for executing a temperature precise control mode according to the judgment result.
The invention further provides an air conditioner, which comprises the control device.
According to the control method and the control device for the air conditioner, provided by the invention, parameters such as the interval of three continuous opening cycles of temperature reaching stop, temperature returning start, temperature reaching stop and temperature returning start are recorded, and the matching fitness between the maintenance structure of the room building where the air conditioner is located and the original control of the air conditioner is judged after calculation and comparison treatment, so that the control of the temperature reaching stop is adjusted, the frequent start and stop of the compressor is avoided, the long-term reliability of the compressor and an air conditioning system is improved, and the capacity demand, the temperature reaching stop and the temperature returning start operation temperature of the air conditioner at the time are calculated by adopting steps based on different set temperature intervals, so that the energy conservation is facilitated, and the comfortable and healthy room temperature is realized for users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for controlling a damper in an embodiment of the present valve;
fig. 2 is a graph showing the relationship between the return air temperature T1 and the compensation value of the user set temperature ts in the embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes a control method and a control device of an air conditioner and the air conditioner provided by the invention with reference to fig. 1.
Referring to fig. 1, a control method of an air conditioner includes the steps of:
s1, after an air conditioner receives a starting-up and mode instruction sent by a remote control mode, a voice mode or an intelligent terminal mode and the like, acquiring a user set temperature value ts, a compressor running time t0 before first temperature reaching and stopping, a first temperature reaching and stopping time interval delta t1, a first temperature returning starting-up running time interval delta t1', a second temperature reaching and stopping time interval delta t2, a second temperature returning starting-up running time interval delta t2', a third temperature reaching and stopping time interval delta t3 and a third temperature returning starting-up running time interval delta t3';
s2, calculating a three-time temperature reaching stop time interval average value delta ta according to the first temperature reaching stop time interval delta t1, the second temperature reaching stop time interval delta t2 and the third temperature reaching stop time interval delta t 3;
calculating a mean value delta t 'a of the three tempering starting-up operation time intervals according to the first tempering starting-up operation time interval delta t1', the second tempering starting-up operation time interval delta t2 'and the third tempering starting-up operation time interval delta t3';
s3, judging the average value delta ta of the three-time temperature reaching and stopping time interval and the minimum preset time interval delta tamin of the compressor stopping, and judging the size relation between the average value delta t 'a of the three-time temperature returning and starting operation time interval and the minimum preset time interval delta t' amin of the temperature returning and starting operation of the compressor;
s4, executing a temperature precise control mode according to the judging result.
Specifically, the minimum preset time interval delta tamin between the shutdown of the compressor and the minimum preset time interval delta t' amin between the startup and the shutdown of the compressor are both preset time intervals based on long-term operation data of the compressor. The preset time can be obtained based on the compressor operation data by storing a minimum preset time interval deltatamin for the compressor to stop and a minimum preset time interval deltat' amin for the compressor to start up at a temperature in advance.
Further, the temperature precise control mode includes: if the average value delta ta of the three reaching temperature stopping time intervals is more than or equal to the minimum preset time interval delta tamin of the compressor stopping and the average value delta T 'a of the three returning temperature starting operation time intervals is more than or equal to the minimum preset time interval delta T' amin of the returning temperature starting operation of the compressor, the capacity requirement and the reaching temperature stopping control scheme in the air conditioner are reserved, and the reaching temperature stopping and returning temperature starting conditions of the compressor of the air conditioner are judged according to the compensating difference value mapping relation interval of the user set temperature ts and the returning temperature T1;
if any condition that the average value delta ta of the three reaching temperature stopping time intervals is smaller than the minimum preset time interval delta tamin of the compressor stopping or the average value delta t 'a of the three returning temperature starting operation time intervals is smaller than the minimum preset time interval delta t' amin of the returning temperature starting operation of the compressor is met, judging whether fault protection occurs during the period from the starting operation to the continuous three reaching temperature stopping and returning temperature starting operation.
Specifically, the minimum preset time interval Δtamin for stopping the compressor is set to 3min.
Specifically, the minimum preset time interval Δt' amin for the temperature-returning start-up operation of the compressor is set to 5min.
Further, the method further comprises the following steps: the judging whether fault protection occurs during the period from starting operation to continuous three-time temperature-reaching shutdown and temperature-returning starting operation comprises the following steps: if the air conditioner is not stopped due to fault protection, the matching between the room building maintenance structure where the air conditioner is positioned and the original temperature reaching stop control scheme of the air conditioner is judged to be low, the compressor is started and stopped too frequently, and capacity requirements and Wen Tingji control are adopted. The capacity requirement and the temperature reaching stop control are adopted so as to keep comfort, so that the compressor is prevented from being started and stopped too frequently, and the long-term reliability of the air conditioner is reduced;
if the positive correction value delta f is added to the reference value of the temperature reaching stop interval which can be zero, the temperature reaching stop is not applicable, the compressor operates at a lower frequency in the interval, the inner fan is switched to a middle-low gear, and the throttle valve reduces the opening.
Further, the temperature precise control mode further includes: if the average delta ta of the three reaching temperature stopping time intervals is smaller than the minimum preset time interval delta tamin of the compressor stopping and the average delta t 'a of the three returning temperature starting operation time intervals is smaller than the minimum preset time interval delta t' amin of the returning temperature starting operation of the compressor, and no protection stopping occurs in the continuous three reaching temperature stopping process, adding a correction value delta f according to the reaching temperature stopping energy standard value, canceling reaching Wen Tingji, and adding the correction value delta f on the reaching Wen Tingji interval standard value.
Specifically, the higher the user set temperature ts is, the larger the compensation difference between the user set temperature ts and the return air temperature T1 is. It can be understood that: the user set temperature ts is set to four sections, respectively, [16,22 ], [22, 26 ], [26, 28 ], [28, 30], and the return air temperature T1 in the four sections and the compensation value of the user set temperature ts correspond to +2 ℃,0 ℃,2 ℃ and 4 ℃ respectively. The user set temperature ts is high, the compensation value of the return air temperature T1 and the user set temperature ts is also large, the user set temperature ts is low, the compensation value of the return air temperature T1 and the user set temperature ts is also small, for the lower two set temperature intervals, the temperature of the temperature reaching shutdown and the temperature reaching startup is not lower than 3 ℃, and in the higher two set temperature intervals, the temperature of the temperature reaching shutdown and the temperature reaching startup is not higher than 2 ℃.
In an embodiment, referring to fig. 2, taking the user set temperature ts as 28 ℃ as an example, the capacity requirement and the temperature reaching stop control scheme belong to the intervals [28, 30], the control is performed according to the return air temperature T1-user set temperature ts compensation value at the right side shown in fig. 2, for example, the room initial temperature is 30 ℃, after the air conditioning is started and operated for a period of time, the return air temperature T1 is reduced to 24 ℃ and stopped, the throttle opening is reset and then opened to the standby opening, the indoor fan continues to supply air, when the indoor return air temperature is returned to above 26 ℃, the compressor is restarted and operated according to the energy requirement, when the return air temperature T1 is lower than 24 ℃, the second temperature reaching stop is performed, when the return air temperature T1 is again raised to above 26 ℃, the second time starting operation of the compressor is performed, so three times of temperature reaching stops and the temperature returning start-up are performed continuously, if the calculated average value delta ta of the three temperature reaching stop time intervals and the average value delta T 'a of the three temperature returning start-up time intervals simultaneously meet the average value delta ta of the three temperature reaching stop time interval delta ta which is equal to or greater than the preset time delta T of the minimum compressor stop time delta T' is equal to the preset time delta T 'and the average value delta T' a of the three temperature returning temperature stop time interval delta T is equal to the minimum time is equal to or greater than 30 ℃ when the calculated average value delta T is calculated, the average value delta T is calculated and is controlled according to the average value of the calculated three temperature average value and the average value delta T and calculated time T value is calculated at 2.
If the user set temperature ts is 21 ℃, belongs to the interval [16, 22), the capacity requirement and the reaching Wen Tingji control, the control is performed by referring to the left return air temperature T1 shown in figure 2, wherein the user set temperature ts compensation value is-2, for example, the initial room temperature is 30 ℃, the return air temperature T1 is reduced to below 23 ℃ after the air conditioner is started and operated for a period of time, the reaching Wen Tingji is performed, the indoor fan continues to supply air, the return air temperature T1 is increased to above 26 ℃, the compressor is restarted and operated according to the energy requirement, the return air temperature T1 is lower than 23 ℃, the second reaching temperature is stopped, the second starting operation of the compressor is performed when the return air temperature T1 is increased to above 26 ℃ again, the three times of reaching temperature stopping and returning temperature starting are performed continuously, if the calculated average delta ta of the three-time reaching temperature stop time interval and the average delta T ' a of the three-time temperature return starting operation time interval are equal to or larger than the minimum preset time interval delta tamin of the stopping of the compressor and the average delta T ' a of the three-time temperature return starting operation time interval are equal to or larger than the minimum preset time interval delta T ' amin of the temperature return starting operation of the compressor, the control operation corresponding to the [16, 22) interval is performed, so that the room temperature is maintained between 23 ℃ and 26 ℃, and the situation that a user forgets to adjust the set temperature in time to sleep and the like is avoided, so that the room temperature is too low to bring health risk and the energy-saving effect is achieved. The compensation value of the high set temperature area is positive, the value is large, the compensation value of the low set temperature area is small, the compensation value can be negative, no matter which set temperature area is selected by a user, the lower temperature of the room is closer to the set temperature of the user, but the actual temperature of the room is not enabled to deviate from the energy-saving comfortable temperature recommended by the country by 26 ℃ for a long time, even if the user is greedy, or the use psychology that the set temperature is set to be lower and the temperature of the room is reduced faster when the user is started is adopted, the temperature after the temperature of the room is reduced is not too low, and the situation that the user sleeps after the user starts or forgets to adjust the set temperature in time to influence health is avoided.
If the calculated average value delta ta of the three reaching temperature stopping time intervals and the average value delta t 'a of the three returning temperature starting operation time intervals are not met, the average value delta ta of the three reaching temperature stopping time intervals is not equal to or greater than 3min, the average value delta t' a of the three returning temperature starting operation time intervals is not equal to or greater than 5min, the failure of matching of the building enclosure structure where the room is located with the control scheme of the reaching temperature stopping is judged, the positive correction value is increased in the capacity requirement f interval, so that the f interval can be the same as or close to the e interval, the situation that the temperature of the air is up to Wen Tingji is canceled, the compressor operates at a lower frequency, the rotating speed of the inner fan is reduced from high wind to medium and low wind, and the opening degree of the throttle valve is reduced, and meanwhile the superheat degree of the indoor evaporator is ensured. If the indoor return air temperature rises to the interval e and above, the compressor foundation can be controlled normally, the fan speed is recovered to high wind, and the throttle valve is recovered to control the opening according to the conventional superheat degree, the exhaust temperature, the exhaust pressure and the like. The problem that the temperature fluctuation of the indoor environment is too large due to frequent start and stop is avoided, and the comfortable indoor environment can be maintained.
In another aspect, there is also provided a control device for an air conditioner, the control device applying the control method as described above, including:
the acquisition module is used for acquiring a user set temperature value ts, a compressor running time t0 before the first temperature reaching shutdown, a first temperature reaching shutdown time interval delta t1, a first temperature returning startup running time interval delta t1', a second temperature reaching shutdown time interval delta t2, a second temperature returning startup running time interval delta t2', a third temperature reaching shutdown time interval delta t3 and a third temperature returning startup running time interval delta t3';
the calculation module is used for calculating a three-time temperature reaching stop time interval average value delta ta according to the first temperature reaching stop time interval delta t1, the second temperature reaching stop time interval delta t2 and the third temperature reaching stop time interval delta t 3;
calculating a mean value delta t 'a of the three tempering starting-up operation time intervals according to the first tempering starting-up operation time interval delta t1', the second tempering starting-up operation time interval delta t2 'and the third tempering starting-up operation time interval delta t3';
the judging module is used for judging the average value delta ta of the three-time reaching temperature stop time interval and the minimum preset time interval delta tamin of the compressor stop and judging the size relation between the average value delta t 'a of the three-time returning temperature start-up running time interval and the minimum preset time interval delta t' amin of the returning temperature start-up running of the compressor;
and the execution module is used for executing a temperature precise control mode according to the judgment result.
In yet another aspect, there is also provided an air conditioner including the control device as described above.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A control method of an air conditioner, the control method comprising the steps of:
s1, after receiving a start-up and mode instruction, an air conditioner acquires a user set temperature value ts, a compressor operation time t0 before first temperature reaching and stopping, a first temperature reaching and stopping time interval delta t1, a first temperature returning start-up operation time interval delta t1', a second temperature reaching and stopping time interval delta t2, a second temperature returning start-up operation time interval delta t2', a third temperature reaching and stopping time interval delta t3 and a third temperature returning start-up operation time interval delta t3';
s2, calculating a three-time temperature reaching stop time interval average value delta ta according to the first temperature reaching stop time interval delta t1, the second temperature reaching stop time interval delta t2 and the third temperature reaching stop time interval delta t 3;
calculating a mean value delta t 'a of the three tempering starting-up operation time intervals according to the first tempering starting-up operation time interval delta t1', the second tempering starting-up operation time interval delta t2 'and the third tempering starting-up operation time interval delta t3';
s3, judging the average value delta ta of the three-time temperature reaching and stopping time interval and the minimum preset time interval delta tamin of the compressor stopping, and judging the size relation between the average value delta t 'a of the three-time temperature returning and starting operation time interval and the minimum preset time interval delta t' amin of the temperature returning and starting operation of the compressor;
s4, executing a temperature precise control mode according to the judgment result;
the temperature accurate control mode includes: if the average value delta ta of the three reaching temperature stopping time intervals is more than or equal to the minimum preset time interval delta tamin of the compressor stopping and the average value delta T 'a of the three returning temperature starting operation time intervals is more than or equal to the minimum preset time interval delta T' amin of the returning temperature starting operation of the compressor, the capacity requirement and the reaching temperature stopping control scheme in the air conditioner are reserved, and the reaching temperature stopping and returning temperature starting conditions of the compressor of the air conditioner are judged according to the compensating difference value mapping relation interval of the user set temperature ts and the returning temperature T1;
if any condition that the average value delta ta of the three reaching temperature stopping time intervals is less than the minimum preset time interval delta tamin of the compressor stopping or the average value delta t 'a of the three returning temperature starting operation time intervals is less than the minimum preset time interval delta t' amin of the returning temperature starting operation of the compressor is met, judging whether fault protection occurs during the period from the starting operation to the continuous three reaching temperature stopping and returning temperature starting operation;
the method for judging whether fault protection occurs during the period from starting operation to continuous three-time temperature-reaching shutdown and temperature-returning starting operation is characterized by comprising the following steps: if the air conditioner is not stopped due to fault protection, judging that the matching of the room building maintenance structure where the air conditioner is positioned and the original temperature reaching stop control scheme of the air conditioner is lower, and controlling the compressor by adopting the capacity requirement and reaching Wen Tingji, wherein the compressor is started and stopped too frequently;
the temperature accurate control mode further includes: if the average delta ta of the three reaching temperature stopping time intervals is smaller than the minimum preset time interval delta tamin of the compressor stopping and the average delta t 'a of the three returning temperature starting operation time intervals is smaller than the minimum preset time interval delta t' amin of the returning temperature starting operation of the compressor, and no protection stopping occurs in the continuous three reaching temperature stopping process, adding a correction value delta f according to the reaching temperature stopping energy standard value, canceling reaching Wen Tingji, and adding the correction value delta f on the reaching Wen Tingji interval standard value.
2. The method according to claim 1, wherein the minimum preset time interval Δtamin between the shutdown of the compressor and the minimum preset time interval Δt' amin between the startup operation of the compressor are both preset time intervals based on long-running data of the compressor.
3. The control method of an air conditioner according to claim 1, wherein the minimum preset time interval Δtamin for the compressor to stop is set to 3min.
4. The method of claim 1, wherein the minimum preset time interval Δt' amin for the warm-up start-up operation of the compressor is set to 5min.
5. The method according to claim 1, wherein the difference between the user set temperature ts and the return air temperature T1 is larger as the user set temperature ts is higher.
6. A control apparatus of an air conditioner, wherein the control apparatus applies the control method according to any one of claims 1 to 5, comprising:
the acquisition module is used for acquiring a user set temperature value ts, a compressor running time t0 before the first temperature reaching shutdown, a first temperature reaching shutdown time interval delta t1, a first temperature returning startup running time interval delta t1', a second temperature reaching shutdown time interval delta t2, a second temperature returning startup running time interval delta t2', a third temperature reaching shutdown time interval delta t3 and a third temperature returning startup running time interval delta t3';
the calculation module is used for calculating a three-time temperature reaching stop time interval average value delta ta according to the first temperature reaching stop time interval delta t1, the second temperature reaching stop time interval delta t2 and the third temperature reaching stop time interval delta t 3;
calculating a mean value delta t 'a of the three tempering starting-up operation time intervals according to the first tempering starting-up operation time interval delta t1', the second tempering starting-up operation time interval delta t2 'and the third tempering starting-up operation time interval delta t3';
the judging module is used for judging the average value delta ta of the three-time reaching temperature stop time interval and the minimum preset time interval delta tamin of the compressor stop and judging the size relation between the average value delta t 'a of the three-time returning temperature start-up running time interval and the minimum preset time interval delta t' amin of the returning temperature start-up running of the compressor;
and the execution module is used for executing a temperature precise control mode according to the judgment result.
7. An air conditioner, characterized in that the air conditioner comprises the control device according to claim 6.
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| CN114877489B (en) * | 2022-05-25 | 2023-05-02 | 珠海格力电器股份有限公司 | Room area acquisition method, air conditioner external unit control method, device and air conditioning system |
| CN114893896B (en) * | 2022-06-13 | 2023-09-08 | 珠海格力电器股份有限公司 | Control method and device for air conditioner |
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