CN113432265A - Control method for simultaneously controlling indoor temperature and indoor humidity - Google Patents
Control method for simultaneously controlling indoor temperature and indoor humidity Download PDFInfo
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- CN113432265A CN113432265A CN202110750238.6A CN202110750238A CN113432265A CN 113432265 A CN113432265 A CN 113432265A CN 202110750238 A CN202110750238 A CN 202110750238A CN 113432265 A CN113432265 A CN 113432265A
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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
- F24F11/62—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
- F24F11/70—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
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- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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Abstract
The invention relates to the field of air conditioners, in particular to a control method for simultaneously controlling indoor temperature and indoor humidity, which controls the indoor temperature and the indoor humidity through an air conditioner running target temperature Ts and a target humidity set by a user
And detecting the current indoor temperature Tir and indoor humidity
The indoor coil temperature Tic and the outdoor temperature Tor are adjusted according to the outdoor temperature Tor and the target humidity
Limiting the operating frequency range of the compressor, then adjusting the current operating frequency of the compressor according to the difference delta T between the indoor temperature and the target temperature, and according to the difference value between the indoor moisture content Dir and the target state moisture content Ds and the target humidity
The current rotating speed of the indoor fan is adjusted, and when the temperature or the humidity is close to the set value of a user, the rotating speed of the fan and the frequency of the compressor are adjusted according to related parameters, so that the air conditioner can simultaneously ensure that the indoor temperature and the indoor humidity are stabilized at the set value of the user, the problem that the existing variable frequency air conditioner cannot simultaneously reach the set temperature and the set humidity is solved, and the variable frequency air conditioner is suitable for adjusting the indoor temperature and the indoor humidity.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a control method for simultaneously controlling indoor temperature and indoor humidity.
Background
The general air conditioner generally provides a function of setting temperature, and the air conditioner operates with the set temperature as a target, and further, the partial variable frequency air conditioner provides a function of setting temperature and setting humidity, and the air conditioner operates around the two targets of the set temperature and the set humidity.
Sensible heat load and latent heat load in the room can reduce along with the increase of air conditioner operating time, sensible heat load refers to the cooling temperature difference, latent heat load refers to the dehumidification portion, but sensible heat load, latent heat load are influenced by factors such as room heat transfer, heat leakage, indoor heat load size, and the two change relations are complicated, and the characteristics of strong hysteresis quality of temperature, humidity of ordinary air conditioning system, simple control mode lead to being difficult to reach user's accuse temperature simultaneously, accuse wet demand.
Taking a refrigeration operation mode as an example, in a starting-up and cooling operation stage, sensible heat load and latent heat load needing to be adjusted in a room are large, an air conditioner generally operates at a high frequency, and at the moment, the air conditioner has high cooling and dehumidifying capacity and can better match room load requirements; when the indoor temperature is close to the set temperature, on one hand, sensible heat load transmitted into the room through a wall and a door and window tends to be stable, but the sensible heat load transmitted into the room through the door and window gap is permeated, and the latent heat load discharged through human metabolism is smaller.
The first typical use scene is that when the humidity set by a user is high and the indoor air speed set is low, the temperature of the evaporator is low, the air conditioner is in an operation state that the dehumidification capacity is high and the cooling effect is weakened, when the air conditioner is operated for a period of time, the conditions that the actual humidity in the room is lower than the set humidity and the indoor temperature is higher than the set temperature can occur, when the air conditioner is continuously operated at the set low air speed, when the room temperature reaches the set temperature, the actual humidity in the room is far lower than the set humidity due to the continuous dehumidification of the air conditioner, and the requirements of the user on simultaneous temperature control and humidity control cannot be met. In the second typical use scenario, when the humidity set by the user is low and the indoor air speed set is high, the temperature of the evaporator is high, the dehumidification capacity of the air conditioner in the state has a lower limit, and even if the air conditioner continuously operates in the state, the actual humidity of a room is still higher than the set humidity, so that the requirements of the user on temperature control and humidity control at the same time cannot be met, and the comfort of the user is influenced.
Disclosure of Invention
The technical problems solved by the invention are as follows: the control method for simultaneously controlling the indoor temperature and the indoor humidity is provided, and the problem that the conventional variable frequency air conditioner cannot simultaneously reach the set temperature and the set humidity is solved.
The invention adopts the technical scheme for solving the technical problems that: the control method for simultaneously controlling indoor temperature and indoor humidity comprises the following steps:
s01, setting the target temperature Ts of air conditioner operation and the target humidity of air conditioner operation
According to the target temperature Ts and the target humidity
Obtaining the moisture content Ds of the target state, recording the indoor temperature detected by the air conditioner as Tir and the indoor humidity as Tir
The temperature of the indoor coil is recorded as Tic, the outdoor temperature is recorded as Tor, and the indoor temperature Tir and the indoor humidity are used as the basis
Obtaining indoor moisture content Dir and indoor dew point temperature Tid;
s02, according to the outdoor temperature Tor and the target humidity
Obtaining a compressor operating frequency range and limiting the compressor frequency within the frequency range;
s03, calculating a difference value between the indoor temperature Tir and the target temperature Ts as delta T and a difference value between the indoor moisture content Dir and the target state moisture content Ds as delta D, namely the delta T is equal to Tir-Ts, and the delta D is equal to Dir-Ds;
s04, obtaining the current running frequency Fg1 of the compressor according to the delta T, obtaining the current running frequency of the compressor according to the delta D,
Obtaining the current rotating speed Nir of the indoor fan;
s05, according to DeltaD,
Adjusting the rotating speed Nir of the indoor fan by Tic, Tid, Tir, Ts, Ds and Dir;
s06, adjusting the frequency of the compressor according to the delta T, the Tir, the Ts, the Ds, the Dir, the Nir, the Tic and the Tid.
Further, in step S05, according to the Δ D,
The adjusting process of adjusting the indoor fan rotating speed Nir by Tic, Tid, Tir, Ts, Ds and Dir comprises the following steps:
s501, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s502, when a is less than or equal to delta D or Tir is less than or equal to Ts + e, according to the target humidity
Obtaining the rotating speed range of the indoor fan, limiting the rotating speed of the indoor fan in the range, and otherwise, returning to the step S03;
s5021, when delta D is larger than or equal to b and smaller than or equal to c, the rotating speed of the indoor fan is kept unchanged, and the step S503 is carried out;
s5022, when c is smaller than delta D and is smaller than or equal to D, obtaining the rotating speed of the fan according to delta D, and entering the step S503; (ii) a
S5023, when a is more than or equal to and less than delta D and less than b, if Tic is more than Tid, the rotating speed of the indoor fan keeps unchanged, the step S503 is started, and if Tic is less than or equal to Tid, the rotating speed of the fan is obtained according to delta D, and the step S503 is started;
s503, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S502.
Further, in step S05, the method further includes adjusting the indoor fan speed according to the moisture content change rate, and one indoor fan speed adjustment process includes the following steps:
s5001, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s5002, when a is more than or equal to delta D and less than or equal to D or Tir is more than or equal to Ts + e, according to the target humidity
Get indoor windThe rotating speed range of the fan is limited, otherwise, the step S03 is returned;
s50021, when the delta D is more than or equal to b and less than or equal to c, keeping the rotating speed of the indoor fan unchanged, and entering the step S5003;
s50022, when c is less than delta D and less than or equal to D, obtaining the rotating speed of the fan according to the delta D and the moisture content change rate, and entering the step S5003;
s50023, when a is not more than delta D and is less than b, if Tic is more than Tid, the rotating speed of the indoor fan is kept unchanged, the step S5003 is performed, if Tic is not more than Tid, the rotating speed of the fan is obtained according to delta D and the moisture content change rate, and the step S5003 is performed;
s5003, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S5002.
Further, in step S06, an adjustment range for adjusting the compressor frequency according to Δ T, Tir, Ts, Ds, Dir, Nir, Tic, and Tid includes the following steps:
s601, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s602, obtaining a frequency variation quantity delta F according to delta T;
s6021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches the upper limit; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S603;
s6022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S603;
s6023, when Tir is more than Ts + h and Ds + k is less than Dir, the delta F is unchanged; entering S603;
s6024, when Ts + i is less than or equal to Tir and less than or equal to Ts and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S603;
and S603, adjusting the running frequency of the compressor according to delta F.
Further, in step S06, the method further includes adjusting the frequency of the compressor according to the temperature change rate, and one of the adjusting the frequency includes the following steps:
s6001, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s6002, obtaining a frequency variation quantity delta F according to the delta T and the temperature variation rate;
s60021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches the upper limit; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S6003;
s60022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S6003;
s60023, when Tir is more than Ts + h and Ds + k is less than Dir, delta F is unchanged; entering S6003;
s60024, when Ts + i is less than or equal to Tir and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S6003;
and S6003, adjusting the running frequency of the compressor according to delta F.
Further, in step S02, the manner of obtaining the compressor operation frequency range is as follows: the outdoor temperature Tor and the target humidity
The corresponding compressor operation frequency range is stored in the air conditioner storage unit, the corresponding compressor operation frequency range is obtained by searching the outdoor temperature and the target humidity in the data storage unit, and in step S04, the current frequency Fg1 of the compressor is obtained by: storing the compressor running frequency corresponding to the delta T in an air conditioner storage unit, and searching the delta T in a data storage unit to obtain the corresponding compressor running frequency; the method for obtaining the current rotating speed Nir of the indoor fan comprises the following steps: will Δ D and
the corresponding current rotating speed of the indoor fan is stored in the air conditioner storage unit, and the sum of delta D and delta D is searched in the data storage unit
The current rotating speed of the corresponding indoor fan is obtained.
Further, in step S502, the manner of obtaining the rotating speed range of the indoor fan is as follows: and storing the rotating speed range of the indoor fan corresponding to the target humidity in an air conditioner storage unit, and searching the target humidity to obtain the rotating speed range of the indoor fan.
Further, in steps S5022 and S5023, the manner of obtaining the current fan rotation speed according to Δ D is as follows: and storing the rotating speed of the fan corresponding to the delta D in an air conditioner storage unit, and searching the delta D in the storage unit to obtain the rotating speed of the indoor fan corresponding to the delta D.
Further, in steps S50022 and S50023, the current fan speed is obtained according to Δ D and the moisture content change rate, and the corresponding indoor fan speed is obtained by searching Δ D and the moisture content change rate in the storage unit.
The invention has the beneficial effects that: the control method for simultaneously controlling the indoor temperature and the indoor humidity of the invention is realized by the target temperature Ts and the target humidity of the air conditioner operation set by the user
And detecting the current indoor temperature Tir and indoor humidity
The indoor coil temperature Tic and the outdoor temperature Tor are adjusted according to the outdoor temperature Tor and the target humidity
Limiting the operating frequency range of the compressor, then adjusting the current operating frequency of the compressor according to the difference delta T between the indoor temperature and the target temperature, and according to the difference value between the indoor moisture content Dir and the target state moisture content Ds and the target humidity
The current rotating speed of the indoor fan is adjusted, when the temperature or the humidity is close to the set value of a user, the rotating speed of the indoor fan and the frequency of the compressor are adjusted according to related parameters, so that the air conditioner can simultaneously ensure that the indoor temperature and the indoor humidity are stabilized at the set value of the user, and the problem that the existing variable frequency air conditioner cannot simultaneously adjust the indoor temperature and the indoor humidity is solvedThe set temperature and the set humidity are reached.
Drawings
Fig. 1 is a schematic flow chart of a control method for simultaneously controlling indoor temperature and indoor humidity according to the present invention.
Detailed Description
The control method for simultaneously controlling indoor temperature and indoor humidity of the invention, as shown in the attached figure 1, comprises the following steps:
the invention adopts the technical scheme for solving the technical problems that: the control method for simultaneously controlling indoor temperature and indoor humidity comprises the following steps:
s01, setting the target temperature Ts of air conditioner operation and the target humidity of air conditioner operation
According to the target temperature Ts and the target humidity
Obtaining the moisture content Ds of the target state, recording the indoor temperature detected by the air conditioner as Tir and the indoor humidity as Tir
The temperature of the indoor coil is recorded as Tic, the outdoor temperature is recorded as Tor, and the indoor temperature Tir and the indoor humidity are used as the basis
Obtaining indoor moisture content Dir and indoor dew point temperature Tid;
s02, according to the outdoor temperature Tor and the target humidity
Obtaining a compressor operating frequency range and limiting the compressor frequency within the frequency range;
s03, calculating a difference value between the indoor temperature Tir and the target temperature Ts as delta T and a difference value between the indoor moisture content Dir and the target state moisture content Ds as delta D, namely the delta T is equal to Tir-Ts, and the delta D is equal to Dir-Ds;
s04 rootObtaining the current running frequency Fg1 of the compressor according to the delta T, obtaining the current running frequency Fg1 of the compressor according to the delta D,
Obtaining the current rotating speed Nir of the indoor fan;
s05, according to DeltaD,
Adjusting the rotating speed Nir of the indoor fan by Tic, Tid, Tir, Ts, Ds and Dir;
s06, adjusting the frequency of the compressor according to the delta T, the Tir, the Ts, the Ds, the Dir, the Nir, the Tic and the Tid.
Further, in step S05, according to the Δ D,
The adjusting process of adjusting the indoor fan rotating speed Nir by Tic, Tid, Tir, Ts, Ds and Dir comprises the following steps:
s501, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s502, when a is less than or equal to delta D or Tir is less than or equal to Ts + e, according to the target humidity
Obtaining the rotating speed range of the indoor fan, limiting the rotating speed of the indoor fan in the range, and otherwise, returning to the step S03;
s5021, when delta D is larger than or equal to b and smaller than or equal to c, the rotating speed of the indoor fan is kept unchanged, and the step S503 is carried out;
s5022, when c is smaller than delta D and is smaller than or equal to D, obtaining the rotating speed of the fan according to delta D, and entering the step S503; (ii) a
S5023, when a is more than or equal to and less than delta D and less than b, if Tic is more than Tid, the rotating speed of the indoor fan keeps unchanged, the step S503 is started, and if Tic is less than or equal to Tid, the rotating speed of the fan is obtained according to delta D, and the step S503 is started;
s503, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S502.
Further, in step S05, the method further includes adjusting the indoor fan speed according to the moisture content change rate, and one indoor fan speed adjustment process includes the following steps:
s5001, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s5002, when a is more than or equal to delta D and less than or equal to D or Tir is more than or equal to Ts + e, according to the target humidity
Obtaining the rotating speed range of the indoor fan, limiting the rotating speed of the indoor fan in the range, and otherwise, returning to the step S03;
s50021, when the delta D is more than or equal to b and less than or equal to c, keeping the rotating speed of the indoor fan unchanged, and entering the step S5003;
s50022, when c is less than delta D and less than or equal to D, obtaining the rotating speed of the fan according to the delta D and the moisture content change rate, and entering the step S5003;
s50023, when a is not more than delta D and is less than b, if Tic is more than Tid, the rotating speed of the indoor fan is kept unchanged, the step S5003 is performed, if Tic is not more than Tid, the rotating speed of the fan is obtained according to delta D and the moisture content change rate, and the step S5003 is performed;
s5003, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S5002.
Further, in step S06, an adjustment range for adjusting the compressor frequency according to Δ T, Tir, Ts, Ds, Dir, Nir, Tic, and Tid includes the following steps:
s601, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s602, obtaining a frequency variation quantity delta F according to delta T;
s6021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches the upper limit; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S603;
s6022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S603;
s6023, when Tir is more than Ts + h and Ds + k is less than Dir, the delta F is unchanged; entering S603;
s6024, when Ts + i is less than or equal to Tir and less than or equal to Ts and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S603;
and S603, adjusting the running frequency of the compressor according to delta F.
Further, in step S06, the method further includes adjusting the frequency of the compressor according to the temperature change rate, and one of the adjusting the frequency includes the following steps:
s6001, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s6002, obtaining a frequency variation quantity delta F according to the delta T and the temperature variation rate;
s60021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches the upper limit; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S6003;
s60022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S6003;
s60023, when Tir is more than Ts + h and Ds + k is less than Dir, delta F is unchanged; entering S6003;
s60024, when Ts + i is less than or equal to Tir and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S6003;
and S6003, adjusting the running frequency of the compressor according to delta F.
Further, in step S02, the manner of obtaining the compressor operation frequency range is as follows: the outdoor temperature Tor and the target humidity
The corresponding compressor operation frequency range is stored in the air conditioner storage unit, the corresponding compressor operation frequency range is obtained by searching the outdoor temperature and the target humidity in the data storage unit, and in step S04, the current frequency Fg1 of the compressor is obtained by: storing the compressor operation frequency corresponding to the delta T in an air conditioner storage unit,obtaining the corresponding compressor running frequency by searching delta T in the data storage unit; the method for obtaining the current rotating speed Nir of the indoor fan comprises the following steps: will Δ D and
the corresponding current rotating speed of the indoor fan is stored in the air conditioner storage unit, and the sum of delta D and delta D is searched in the data storage unit
The current rotating speed of the corresponding indoor fan is obtained.
Further, in step S502, the manner of obtaining the rotating speed range of the indoor fan is as follows: and storing the rotating speed range of the indoor fan corresponding to the target humidity in an air conditioner storage unit, and searching the target humidity to obtain the rotating speed range of the indoor fan.
Further, in steps S5022 and S5023, the manner of obtaining the current fan rotation speed according to Δ D is as follows: and storing the rotating speed of the fan corresponding to the delta D in an air conditioner storage unit, and searching the delta D in the storage unit to obtain the rotating speed of the indoor fan corresponding to the delta D.
Further, in steps S50022 and S50023, the current fan speed is obtained according to Δ D and the moisture content change rate, and the corresponding indoor fan speed is obtained by searching Δ D and the moisture content change rate in the storage unit.
Example (b):
in one embodiment of the present invention, a control method for simultaneously controlling indoor temperature and indoor humidity includes the steps of:
s01, setting the target temperature Ts of air conditioner operation and the target humidity of air conditioner operation
According to the target temperature Ts and the target humidity
Obtaining the moisture content Ds of the target state, recording the indoor temperature detected by the air conditioner as Tir and the indoor humidity as Tir
The temperature of the indoor coil is recorded as Tic, the outdoor temperature is recorded as Tor, and the indoor temperature Tir and the indoor humidity are used as the basis
Obtaining indoor moisture content Dir and indoor dew point temperature Tid;
specifically, as long as the temperature and humidity are known, the moisture content and dew point temperature of the air under the temperature and humidity conditions can be obtained by using a software program.
S02, according to the outdoor temperature Tor and the target humidity
Obtaining a compressor operating frequency range and limiting the compressor frequency within the frequency range;
specifically, the method for obtaining the operating frequency range of the compressor includes: the outdoor temperature Tor and the target humidity
The corresponding compressor operating frequency range is stored in the air conditioner storage unit, and the corresponding compressor operating frequency range is acquired by searching the outdoor temperature and the target humidity in the data storage unit.
S03, calculating a difference value between the indoor temperature Tir and the target temperature Ts as delta T and a difference value between the indoor moisture content Dir and the target state moisture content Ds as delta D, namely the delta T is equal to Tir-Ts, and the delta D is equal to Dir-Ds;
s04, obtaining the current running frequency Fg1 of the compressor according to the delta T, obtaining the current running frequency of the compressor according to the delta D,
Obtaining the current rotating speed Nir of the indoor fan;
specifically, the method for obtaining the current frequency Fg1 of the compressor includes: storing the compressor running frequency corresponding to the delta T in an air conditioner storage unit, and searching the delta T in a data storage unit to obtain the corresponding compressor running frequency; obtaining current rotating speed Nir of indoor fanThe method comprises the following steps: will Δ D and
the corresponding current rotating speed of the indoor fan is stored in the air conditioner storage unit, and the sum of delta D and delta D is searched in the data storage unit
The current rotating speed of the corresponding indoor fan is obtained.
S05, according to DeltaD,
Adjusting the rotating speed Nir of the indoor fan by Tic, Tid, Tir, Ts, Ds and Dir;
specifically, the adjusting process for adjusting the rotating speed Nir of the indoor fan comprises the following steps:
s501, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s502, when a is less than or equal to delta D or Tir is less than or equal to Ts + e, according to the target humidity
Obtaining the rotating speed range of the indoor fan, limiting the rotating speed of the indoor fan in the range, and otherwise, returning to the step S03;
specifically, the manner of obtaining the rotating speed range of the indoor fan according to the target humidity is as follows: and storing the rotating speed range of the indoor fan corresponding to the target degree in an air conditioner storage unit, and searching for the target humidity to obtain the rotating speed range of the indoor fan.
S5021, when delta D is larger than or equal to b and smaller than or equal to c, the rotating speed of the indoor fan is kept unchanged, and the step S503 is carried out;
s5022, when c is smaller than delta D and is smaller than or equal to D, obtaining the rotating speed of the fan according to delta D, and entering the step S503;
specifically, the fan speed obtained here is reduced compared to the current fan speed, and the mode of obtaining the fan speed according to Δ D is as follows: and storing the rotating speed of the fan corresponding to the delta D in an air conditioner storage unit, and searching the delta D in the storage unit to obtain the rotating speed of the indoor fan corresponding to the delta D.
S5023, when a is more than or equal to and less than delta D and less than b, if Tic is more than Tid, the rotating speed of the indoor fan keeps unchanged, the step S503 is started, and if Tic is less than or equal to Tid, the rotating speed of the fan is obtained according to delta D, and the step S503 is started;
specifically, the fan speed obtained here is increased compared to the current fan speed, and the fan speed is obtained in the same manner as in step S5022.
S503, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S502.
In addition, in order to adjust more accurately, the moisture content change rate is introduced, and the rotating speed of the fan is adjusted by acquiring the rotating speed of the fan determined according to the delta D and the moisture content change rate.
S06, adjusting the frequency of the compressor according to the delta T, the Tir, the Ts, the Ds, the Dir, the Nir, the Tic and the Tid.
Specifically, an adjustment process for adjusting the frequency of the compressor includes the steps of:
s601, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s602, obtaining a frequency variation quantity delta F according to delta T;
specifically, the frequency variation Δ F corresponding to Δ T is stored in the air-conditioning storage unit, and Δ T is searched in the storage unit to obtain the corresponding frequency variation Δ F.
S6021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches an upper limit, the upper limit is the maximum value of the indoor fan rotating speed range limited in the step S502; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S603;
s6022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S603;
s6023, when Tir is more than Ts + h and Ds + k is less than Dir, the delta F is unchanged; entering S603;
s6024, when Ts + i is less than or equal to Tir and less than or equal to Ts and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S603;
and S603, adjusting the running frequency of the compressor according to delta F.
In addition, in order to adjust more accurately, a temperature change rate is introduced, and the compressor frequency is adjusted by acquiring a frequency change quantity DeltaF determined according to DeltaT and the temperature change rate.
Claims (9)
1. A control method for simultaneously controlling indoor temperature and indoor humidity is characterized by comprising the following steps:
s01, setting the target temperature Ts of air conditioner operation and the target humidity of air conditioner operation
According to the target temperature Ts and the target humidity
Obtaining the moisture content Ds of the target state, recording the indoor temperature detected by the air conditioner as Tir and the indoor humidity as Tir
The temperature of the indoor coil is recorded as Tic, the outdoor temperature is recorded as Tor, and the indoor temperature Tir and the indoor humidity are used as the basis
Obtaining indoor moisture content Dir and indoor dew point temperature Tid;
s02, according to the outdoor temperature Tor and the target humidity
Obtaining a compressor operating frequency range and limiting the compressor frequency within the frequency range;
s03, calculating a difference value between the indoor temperature Tir and the target temperature Ts as delta T and a difference value between the indoor moisture content Dir and the target state moisture content Ds as delta D, namely the delta T is equal to Tir-Ts, and the delta D is equal to Dir-Ds;
s04, according to DeltaT obtaining the current running frequency Fg1 of the compressor according to the delta D,
Obtaining the current rotating speed Nir of the indoor fan;
s05, according to DeltaD,
Adjusting the rotating speed Nir of the indoor fan by Tic, Tid, Tir, Ts, Ds and Dir;
s06, adjusting the frequency of the compressor according to the delta T, the Tir, the Ts, the Ds, the Dir, the Nir, the Tic and the Tid.
2. The method according to claim 1, wherein the step S05 is performed according to Δ D,
The adjusting process of adjusting the indoor fan rotating speed Nir by Tic, Tid, Tir, Ts, Ds and Dir comprises the following steps:
s501, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s502, when a is less than or equal to delta D or Tir is less than or equal to Ts + e, according to the target humidity
Obtaining the rotating speed range of the indoor fan, limiting the rotating speed of the indoor fan in the range, and otherwise, returning to the step S03;
s5021, when delta D is larger than or equal to b and smaller than or equal to c, the rotating speed of the indoor fan is kept unchanged, and the step S503 is carried out;
s5022, when c is smaller than delta D and is smaller than or equal to D, obtaining the rotating speed of the fan according to delta D, and entering the step S503; (ii) a
S5023, when a is more than or equal to and less than delta D and less than b, if Tic is more than Tid, the rotating speed of the indoor fan keeps unchanged, the step S503 is started, and if Tic is less than or equal to Tid, the rotating speed of the fan is obtained according to delta D, and the step S503 is started;
s503, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S502.
3. The method as claimed in claim 1, further comprising adjusting the indoor fan speed according to the moisture content change rate in step S05, wherein the indoor fan speed adjusting process comprises the steps of:
s5001, setting a first parameter a, a second parameter b, a third parameter c, a fourth parameter d, a fifth parameter e, a sixth parameter f and a seventh parameter g; a is more than b and more than c and less than d;
s5002, when a is more than or equal to delta D and less than or equal to D or Tir is more than or equal to Ts + e, according to the target humidity
Obtaining the rotating speed range of the indoor fan, limiting the rotating speed of the indoor fan in the range, and otherwise, returning to the step S03;
s50021, when the delta D is more than or equal to b and less than or equal to c, keeping the rotating speed of the indoor fan unchanged, and entering the step S5003;
s50022, when c is less than delta D and less than or equal to D, obtaining the rotating speed of the fan according to the delta D and the moisture content change rate, and entering the step S5003;
s50023, when a is not more than delta D and is less than b, if Tic is more than Tid, the rotating speed of the indoor fan is kept unchanged, the step S5003 is performed, if Tic is not more than Tid, the rotating speed of the fan is obtained according to delta D and the moisture content change rate, and the step S5003 is performed;
s5003, if the Tir is more than or equal to Ts + f and the Dir is less than or equal to Ds + g, returning to the step S03, otherwise, returning to the step S5002.
4. A control method for simultaneously controlling indoor temperature and indoor humidity according to any one of claims 1 to 3, wherein, in step S06, an adjustment range for adjusting the frequency of the compressor according to Δ T, Tir, Ts, Ds, Dir, Nir, Tic and Tid comprises the steps of:
s601, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s602, obtaining a frequency variation quantity delta F according to delta T;
s6021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches the upper limit; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S603;
s6022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S603;
s6023, when Tir is more than Ts + h and Ds + k is less than Dir, the delta F is unchanged; entering S603;
s6024, when Ts + i is less than or equal to Tir and less than or equal to Ts and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S603;
and S603, adjusting the running frequency of the compressor according to delta F.
5. The control method for simultaneously controlling indoor temperature and indoor humidity according to any one of claims 1 to 3, further comprising adjusting the frequency of the compressor according to the temperature change rate at step S06, wherein a process of adjusting the frequency comprises the steps of:
s6001, setting an eighth parameter h, a ninth parameter i, a tenth parameter j, an eleventh parameter k, a twelfth parameter p and a thirteenth parameter q, wherein i is less than 0; j is less than k; p is less than 0; q is more than 0;
s6002, obtaining a frequency variation quantity delta F according to the delta T and the temperature variation rate;
s60021, when Tir is more than Ts + h, Dir is less than Ds + j, and Nir reaches the upper limit; if Tic is more than or equal to Tid + m, delta F is 0; otherwise, Δ F ═ p; entering S6003;
s60022, when Tir is more than Ts + h and Ds + j is less than or equal to Dir and less than or equal to Ds + k, if Tic is more than or equal to Tid + m, then delta F is equal to q; otherwise, Δ F is 0; entering S6003;
s60023, when Tir is more than Ts + h and Ds + k is less than Dir, delta F is unchanged; entering S6003;
s60024, when Ts + i is less than or equal to Tir and Ds + k is less than Dir, if DeltaF is less than 0, the DeltaF is equal to 0; if the delta F is more than or equal to 0, the delta F is unchanged; entering S6003;
and S6003, adjusting the running frequency of the compressor according to delta F.
6. The control method for simultaneously controlling indoor temperature and indoor humidity according to claim 1, wherein in step S02, the compressor operation frequency range is obtained by: the outdoor temperature Tor and the target humidity
The corresponding compressor operation frequency range is stored in the air conditioner storage unit, the corresponding compressor operation frequency range is obtained by searching the outdoor temperature and the target humidity in the data storage unit, and in step S04, the current frequency Fg1 of the compressor is obtained by: storing the compressor running frequency corresponding to the delta T in an air conditioner storage unit, and searching the delta T in a data storage unit to obtain the corresponding compressor running frequency; the method for obtaining the current rotating speed Nir of the indoor fan comprises the following steps: will Δ D and
the corresponding current rotating speed of the indoor fan is stored in the air conditioner storage unit, and the sum of delta D and delta D is searched in the data storage unit
The current rotating speed of the corresponding indoor fan is obtained.
7. The method for controlling indoor temperature and indoor humidity according to claim 2, wherein in step S502, the rotation speed range of the indoor fan is obtained by: and storing the rotating speed range of the indoor fan corresponding to the target humidity in an air conditioner storage unit, and searching the target humidity to obtain the rotating speed range of the indoor fan.
8. The method for controlling indoor temperature and indoor humidity according to claim 2, wherein in steps S5022 and S5023, the manner of obtaining the current fan speed according to Δ D is as follows: and storing the rotating speed of the fan corresponding to the delta D in an air conditioner storage unit, and searching the delta D in the storage unit to obtain the rotating speed of the indoor fan corresponding to the delta D.
9. The method of claim 3, wherein in steps S50022 and S50023, the current fan speed is obtained according to the Δ D and the moisture content change rate, and the corresponding indoor fan speed is obtained by searching the Δ D and the moisture content change rate in the storage unit.
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